This application claims benefit of priority to Japanese Patent Application No. 2017-095257, filed May 12, 2017, the entire content of which is incorporated herein by reference.
The present disclosure relates to a winding apparatus and a coil component manufacturing method.
An apparatus that winds two wires around a core by orbitally revolving a wire position support member that can feed the two wires around the core is known as a winding apparatus that can form a coil by winding the two wires around the core of a coil component (for example, see Japanese Patent Application Laid-Open No. 2017-11132). The winding apparatus includes a wire feeding mechanism (tensioner) that feeds the wire to the wire position support member while controlling tension of the wire in order to wind the wire around the core with predetermined tension.
Sometimes a single wire is kinked because the wire contacts with an inside of a route hole in which the wire is inserted when the wire position support member revolves orbitally around the core. Consequently, a kink is likely to be generated between the wire feeding mechanism and the wire position support member.
The disclosure provides a winding apparatus that can prevent the generation of the kink of the wire between the wire feeding mechanism and the wire position support member and a coil component manufacturing method.
The disclosure thus provides a winding apparatus for a coil component in which a plurality of wires are wound around a core. The winding apparatus includes a wire position support member including wire route holes in which the plurality of wires are inserted; a wire feeding mechanism that feeds the plurality of wires to the wire position support member such that tension is applied to the plurality of wires; a winding driving unit that orbitally revolves the wire position support member around the core such that the plurality of wires are wound around the core while twisted; a rotation unit that rotates the core; and a controller that controls the winding driving unit and the rotation unit. The controller includes first control, in which the wire position support member is orbitally revolved in a first rotation direction and the core is rotated in a second rotation direction that is of an opposite direction to the first rotation direction, and second control, in which the wire position support member is orbitally revolved in the second rotation direction and the core is rotated in the first rotation direction, the controller switches between the first control and the second control based on a predetermined condition.
In this configuration, a kink direction of each of the plurality of wires in the first control is opposite to a kink direction of each of the plurality of wires in the second control. Because the switching between the first control and the second control is performed based on the predetermined condition, the kink of each of the plurality of wires is decreased by the second control even if each of the plurality of wires is kinked by the first control. The kink of each of the plurality of wires is decreased compared with the case that the plurality of wires are wound around the core only by the first control or the second control. Thus, the generation of a kink of a wire between the wire feeding mechanism and the wire position support member can be prevented.
Another example of the winding apparatus for a coil component in which a plurality of wires are wound around a core includes a wire position support member including wire route holes in which the plurality of wires are inserted; a wire feeding mechanism that feeds the plurality of wires to the wire position support member such that tension is applied to the plurality of wires; a winding driving unit that orbitally revolves the wire position support member around the core such that the plurality of wires are wound around the core while twisted; a rotation unit that rotates the core; and a controller that controls the winding driving unit. The controller includes first control, in which the core is not rotated but the wire position support member is orbitally revolved in a first rotation direction, and second control, in which the core is not rotated but the wire position support member is orbitally revolved in a second rotation direction that is of an opposite direction to the first rotation direction, the controller switches between the first control and the second control based on a predetermined condition.
In this configuration, a kink direction of each of the plurality of wires in the first control is opposite to a kink direction of each of the plurality of wires in the second control. Because the switching between the first control and the second control is performed based on the predetermined condition, the kink of each of the plurality of wires is decreased by the second control even if each of the plurality of wires is kinked by the first control. The kink of each of the plurality of wires is decreased compared with the case that the plurality of wires are wound around the core only by the first control or the second control. Thus, the generation of a kink of a wire between the wire feeding mechanism and the wire position support member can be prevented.
In the winding apparatus according to an embodiment, preferably the predetermined condition is the number of orbital revolutions of the wire position support member, and the number of orbital revolutions of the wire position support member in the first control is equal to the number of orbital revolutions of the wire position support member in the second control. In this configuration, a kink amount of each of the plurality of wires in the first control is substantially equal to a kink amount of each of the plurality of wires in the second control. Thus, the kink of each of the plurality of wires is substantially eliminated by performing the switching between the first control and the second control, so that the generation of the kink of each of the plurality of wires can be prevented between the wire feeding mechanism and the wire position support member.
In the winding apparatus according to an embodiment, preferably the predetermined condition is the number of products of the coil component, and a cycle, in which the plurality of wires are wound around one core based on the first control and the plurality of wires are wound around next one core based on the second control, is repeated in the winding process. In this configuration, the kink amount of each of the plurality of wires in the first control is substantially equal to the kink amount of each of the plurality of wires in the second control by performing the switching between the first control and the second control in each core. Thus, the kink of each of the plurality of wires is substantially eliminated by performing the switching between the first control and the second control, so that the generation of the kink of each of the plurality of wires can be prevented between the wire feeding mechanism and the wire position support member.
In the winding apparatus according to an embodiment, preferably an absolute value of a speed of the wire position support member relative to the core in the first control is equal to an absolute value of a speed of the wire position support member relative to the core in the second control. In this configuration, the number of kinks per one turn of the plurality of wires wound around the core in the first control is equal to the number of kinks per one turn of the plurality of wires wound around the core in the second control. Thus, the generation of performance variation of the coil component can be prevented.
In the winding apparatus according to an embodiment, preferably the controller switches between the first control and the second control in preference to the predetermined condition when the number of twists that is of a number in which the plurality of wires are twisted between the core and the wire position support member reaches an upper limit.
In each of the plurality of wires, a portion between the core and the wire position support member is twisted in association with the orbital revolution of the wire position support member. When the number of twists is excessively increased, the whole portion between the core and the wire position support member in the plurality of wires is twisted, and excessive tension is likely to be applied to the plurality of wires. On the other hand, in this configuration, the switching between the first control and the second control is performed when the number of twists reaches the upper limit, so that the excessive tension due to the twists of the plurality of wires in the portion between the core and the wire position support member can be prevented from being applied to the plurality of wires.
In addition, a method for manufacturing a coil component in which a plurality of wires are wound around a core includes a core preparation process of preparing the core; a winding starting process of hooking a winding starting end in the plurality of wires to which tension is applied by a wire feeding mechanism, the plurality of wires being inserted in wire route holes of a wire position support member on an electrode corresponding to the winding starting end in the core; a winding process of orbitally revolving the wire position support member in an opposite direction to a rotation direction of the core while rotating the core, and winding the plurality of wires around the core while twisting the plurality of wires; a winding ending process of hooking a winding ending end in the plurality of wires on an electrode corresponding to the winding ending end in the core; and a fixing process of fixing the winding starting end to the electrode corresponding to the winding starting end in the core, and fixing the winding ending end to the electrode corresponding to the winding ending end in the core. In the winding process, switching between first control, in which the wire position support member is orbitally revolved in a first rotation direction and the core is rotated in a second rotation direction that is of an opposite direction to the first rotation direction, and second control, in which the wire position support member is orbitally revolved in the second rotation direction and the core is rotated in the first rotation direction, is performed based on a predetermined condition.
In this configuration, a kink direction of each of the plurality of wires in the first control is opposite to a kink direction of each of the plurality of wires in the second control. Because the switching between the first control and the second control is performed based on the predetermined condition, the kink of each of the plurality of wires is decreased by the second control even if each of the plurality of wires is kinked by the first control. The kink of each of the plurality of wires is decreased compared with the case that the plurality of wires are wound around the core only by the first control or only by the second control. Thus, the generation of a kink of a wire between the wire feeding mechanism and the wire position support member can be prevented.
Another example of a method for manufacturing a coil component in which a plurality of wires are wound around a core includes a core preparation process of preparing the core; a winding starting process of hooking a winding starting end in the plurality of wires to which tension is applied by a wire feeding mechanism, the plurality of wires being inserted in wire route holes of a wire position support member on an electrode corresponding to the winding starting end in the core; a winding process of orbitally revolving the wire position support member around the core, and winding the plurality of wires around the core while twisting the plurality of wires; a winding ending process of hooking a winding ending end in the plurality of wires on an electrode corresponding to the winding ending end in the core; and a fixing process of fixing the winding starting end to the electrode corresponding to the winding starting end in the core, and fixing the winding ending end to the electrode corresponding to the winding ending end in the core. In the winding process, switching between first control, in which the core is not rotated but the wire position support member is orbitally revolved in a first rotation direction, and second control, in which the core is not rotated but the wire position support member is orbitally revolved in a second rotation direction that is of an opposite direction to the first rotation direction, is performed based on a predetermined condition.
In this configuration, a kink direction of each of the plurality of wires in the first control is opposite to a kink direction of each of the plurality of wires in the second control. Because the switching between the first control and the second control is performed based on the predetermined condition, the kink of each of the plurality of wires is decreased by the second control even if each of the plurality of wires is kinked by the first control. The kink of each of the plurality of wires is decreased compared with the case that the plurality of wires are wound around the core only by the first control or the second control. Thus, the generation of a kink of a wire between the wire feeding mechanism and the wire position support member can be prevented.
In the coil component manufacturing method according to an embodiment, preferably the predetermined condition is the number of orbital revolutions of the wire position support member, and in the winding process, the number of orbital revolutions of the wire position support member in the first control is equal to the number of orbital revolutions of the wire position support member in the second control. In this configuration, a kink amount of each of the plurality of wires in the first control is substantially equal to a kink amount of each of the plurality of wires in the second control. Thus, the kink of each of the plurality of wires is substantially eliminated by performing the switching between the first control and the second control, so that the generation of the kink of each of the plurality of wires can be prevented between the wire feeding mechanism and the wire position support member.
In the coil component manufacturing method according to an embodiment, preferably the predetermined condition is the number of products of the coil component, and a cycle, in which the plurality of wires are wound around one core based on the first control and the plurality of wires are wound around next one core based on the second control, is repeated in the winding process. In this configuration, the kink amount of each of the plurality of wires in the first control is substantially equal to the kink amount of each of the plurality of wires in the second control by performing the switching between the first control and the second control in each core. Thus, the kink of each of the plurality of wires is substantially eliminated by performing the switching between the first control and the second control, so that the generation of the kink of each of the plurality of wires can be prevented between the wire feeding mechanism and the wire position support member.
In the coil component manufacturing method according to an embodiment, preferably in the winding process, an absolute value of a speed of the wire position support member relative to the core in the first control is equal to an absolute value of a speed of the wire position support member relative to the core in the second control. In this configuration, the number of twists per one turn of each of the plurality of wires wound around the core in the first control is equal to the number of twists per one turn of each of the plurality of wires wound around the core in the second control. Thus, the generation of performance variation of the coil component can be prevented.
In the coil component manufacturing method according to an embodiment, preferably in the winding process, the controller switches between the first control and the second control in preference to the predetermined condition when the number of twists that is of a number in which the plurality of wires are twisted between the core and the wire position support member reaches an upper limit.
In each of the plurality of wires, a portion between the core and the wire position support member is twisted in association with the orbital revolution of the wire position support member. When the number of twists is excessively increased, the whole portion between the core and the wire position support member in the plurality of wires is twisted, and excessive tension is likely to be applied to the plurality of wires. On the other hand, in this configuration, the switching between the first control and the second control is performed when the number of twists reaches the upper limit, so that the excessive tension due to the twists of the plurality of wires in the portion between the core and the wire position support member can be prevented from being applied to the plurality of wires.
In the winding apparatus and the coil component manufacturing method of the disclosure, the generation of the kink of the wire can be prevented between the wire feeding mechanism and the wire position support member.
Embodiments will be described with reference to the drawings.
In the accompanying drawings, in some cases a component is illustrated while enlarged for the sake of easy understanding. In some cases, a dimension ratio of the component differs from an actual dimension ratio or a dimension ratio of another drawing. In the sectional view, in some cases hatting of a part of the components is omitted for the sake of easy understanding. Hereinafter, the term “a twist in a wire” means a state in which a plurality of wires are intersected and entangled, and the plurality of wires are wound round themselves. The term “a kink of a wire” means a state in which one wire (single wire) rotates about its longitudinal direction.
As illustrated in
As illustrated in
For example, a magnetic material (such as nickel (Ni)-zinc (Zn) ferrite and manganese (Mn)—Zn ferrite), a metallic magnetics, and a nonmagnetic material (such as alumina and resin) can be used as a material for the core 210. Powders of these materials are molded and sintered, thereby obtaining the core 210. The core 210 includes a winding core 211, a first flange 212, and a second flange 213. The winding core 211 is formed into a substantially rectangular parallelepiped shape. The first flange 212 extends from one end of the winding core 211 in a first direction in which the winding core 211 extends to a second direction that is a plane direction orthogonal to the first direction. The second flange 213 extends from the other end of the winding core 211 in the first direction to the second direction. The first flange 212 and the second flange 213 are formed integrally with the winding core 211. A first electrode 214 and a second electrode 215 are provided in each of the flanges 212, 213. The first electrode 214 and the second electrode 215 are located at both ends in the second direction of each of the flanges 212, 213 in planar view of the coil component 200. Each of the electrodes 214, 215 includes a metallic layer and a plated layer on a surface of the metallic layer. For example, silver (Ag) can be used as the metallic layer, and tin (Sn) plating can be used as the plated layer. Metal such as copper (Cu) or an alloy such as nickel (Ni)-chromium (Cr) and Ni—Cu may be used as the metallic layer. Ni plating or plating of at least two kinds of metals may be used as the plated layer.
A dimension in the first direction and a dimension in the second direction of the core 210 can arbitrarily be changed. Preferably the dimension in the first direction of the core 210 ranges from 2.09 mm to 4.5 mm, and the dimension in the second direction of the core 210 ranges from 1.53 mm to 3.2 mm. In the first embodiment, the dimension in the first direction of the core 210 is set to 4.5 mm, the dimension in the second direction of the core 210 is set to 3.2 mm.
The coil 220 includes a primary-side coil in which the first wire W1 is wound around the winding core 211 and a secondary-side coil in which the second wire W2 is wound around the winding core 211. The first wire W1 is connected to the first electrode 214, and the second wire W2 is connected to the second electrode 215. As illustrated in
As illustrated in
For example, when the coil component 200 is mounted on the circuit board, the cover member 230 causes a suction nozzle to surely perform suction. The cover member 230 prevents damage of each of the wires W1, W2 during the suction of the suction nozzle. A nonmagnetic material such as an epoxy resin may be used as the material for the cover member 230. Consequently, a magnetic loss is reduced, and a Q value of the coil component 200 can be enhanced.
<Winding Apparatus>
As illustrated in
In the component supply process, the core conveyance mechanism 10 separately conveys the core 210 to the core input mechanism 20. In the component input process, the core input mechanism 20 inputs the core 210 to the holding mechanism 30, and the holding mechanism 30 holds the core 210.
The coil forming process is a process of forming the coil 220 in the core 210, and includes a winding starting process (step S31), a winding process (step S32), and a winding ending process (step S33). In the winding starting process, the wire winding mechanism 60 hooks winding starting ends of the first and second wires W1, W2, to which predetermined tension is provided by the wire feeding mechanism 50, on the electrodes 214, 215 (see
In the wire connection process, the wire connection mechanism 80 connects a winding starting end of each of the wires W1, W2 to each of the electrodes 214, 215, and connects the winding ending end of each of the wires W1, W2 to each of the electrodes 214, 215. In the wire cutting process, the wire connection mechanism 80 cuts an excess portion of each of the wires W1, W2, and the wasted line recovery mechanism 90 recovers the excess portion. In the component carrying process, the core carrying mechanism 100 carries the core 210 on which the coil 220 is formed from the holding mechanism 30, and moves the core 210 to the bonding apparatus 2 (see
As illustrated in
The condition monitor 131 monitors operation conditions of the mechanisms 10 to 120. Pieces of information about the operation conditions of mechanisms 10 to 120 are input to the condition monitor 131, the operation conditions being detected by cameras and sensors, which are provided in the mechanisms 10 to 120. The condition monitor 131 outputs the current operation conditions of the mechanisms 10 to 120 to the operation storage 132 based on the pieces of information about the operation conditions of mechanisms 10 to 120.
Various control programs and pieces of information used in various pieces of processing are stored in the operation storage 132. An example of the pieces of information used in various pieces of processing is current operation conditions of the mechanisms 10 to 120, the current operation conditions being output from the condition monitor 131.
The operation instruction unit 133 outputs operation instruction signals for the mechanisms 10 to 120 to the mechanisms 10 to 120 based on the various control programs stored in the operation storage 132. By way of example, the operation instruction unit 133 performs feedback control to generate the operation instruction signals such that mechanisms 10 to 120 agree with control target values of the mechanisms 10 to 120 with respect to the current operation conditions of the mechanisms 10 to 120.
Detailed configuration and operation of the mechanism related to each process of a method for manufacturing the coil component 200 in the winding apparatus 1 will be described below.
(Component Supply Process)
As illustrated in
The alignment unit 12 includes a rotation table 12a that holds the core 210, a motor 12b that rotates the rotation table 12a, and alignment means 12c that aligns the orientation of the core 210. The alignment means 12c changes a length direction of the core 210 to a rotation direction of the rotation table 12a in
The direction selector 13 includes a conveyance unit 13a that conveys the core 210 conveyed from the alignment unit 12 toward the separation and conveyance unit 14, a determination unit 13b that determines whether or not the core 210 is oriented toward the predetermined orientation, and a classification unit 13c that returns the core 210 except for the core 210 having the predetermined orientation to the supply unit 11. For example, the conveyance unit 13a is a belt conveyer, and is driven by a motor (not illustrated). For example, the determination unit 13b includes a camera, and determines whether the electrodes 214, 215 of the core 210 are located on the upper surface based on an image captured by the camera. For example, the classification unit 13c is configured to be able to discharge compressed air to a predetermined region on the conveyance unit 13a. The classification unit 13c discharges the compressed air to return the core 210 except for the core 210 having the predetermined orientation to the supply unit 11 when the core 210 except for the core 210 having the predetermined orientation is positioned in the predetermined region on the conveyance unit 13a by the determination unit 13b.
The separation and conveyance unit 14 includes a linear rail 14a, a carrier 14b movable with respect to the rail 14a, and an actuator 14c that moves the carrier 14b. An example of the actuator 14c is a feed screw mechanism including a screw 14d extending along the longitudinal direction of the rail 14a and a motor 14e constituting a driving source that rotates the screw 14d. The carrier 14b is coupled to the screw 14d, and is reciprocally movable in an axial direction of the screw 14d in association with the rotation of the screw 14d. The core 210 conveyed from the direction selector 13 is supplied to the carrier 14b.
The control mechanism 130 (see
(Component Input Process)
The core input mechanism 20 in
As illustrated in
The control mechanism 130 (see
The control mechanism 130 controls the first electric cylinder 22a such that, while the core holding and fixing unit 21 holds the core 210 as illustrated in
As illustrated in
The rotation unit 30A rotates a part of the core holding unit 30B and the start-line-side wire holding unit 30C. The rotation unit 30A includes a rotation table 31 to which the part of the core holding unit 30B and the start-line-side wire holding unit 30C are attached and a rotation device 32 that rotates the rotation table 31. The rotation device 32 includes a motor constituting a driving source, a speed reducer that reduces a rotation speed of the motor, a case 32a in which the motor and the speed reducer are accommodated, and an output shaft 32b that outputs a torque of the rotation device 32.
The case 32a extends in the front-back direction X. In the case 32a, the motor and the speed reducer are arranged in the front-back direction X. The output shaft 32b that takes out output from the speed reducer is coupled to the rotation table 31 while projecting from the case 32a. That is, the rotation table 31 rotates integrally with the output shaft 32b.
The rotation table 31 is formed into a substantial L-shape when viewed from the horizontal direction Y. The rotation table 31 includes a placing table 31a on which a part of the core holding unit 30B is placed and a coupling wall 31b projecting upward from the placing table 31a. The output shaft 32b is coupled to the coupling wall 31b. The placing table 31a is located below the output shaft 32b. The start-line-side wire holding unit 30C is fixed to a side surface in the horizontal direction Y of the coupling wall 31b.
The core holding unit 30B holds the core 210 conveyed from the core input mechanism 20 (see
As illustrated in
The fixed-side holding member 34 and the pressing plate 36 are fixed to the placing table 31a with a bolt B in the state in which the fixed-side holding member 34 and the pressing plate 36 overlap each other while the pressing plate 36 is located above the fixed-side holding member 34. The fixed-side holding member 34 includes a main body unit 34a, a bulge unit 34b, an accommodation unit 34c, and an attaching unit 34d. The main body unit 34a, the bulge unit 34b, the accommodation unit 34c, and the attaching unit 34d are integrally formed. The main body unit 34a is formed into a rectangular shape extending in the front-back direction X, and the pressing plate 36 is placed on the main body unit 34a. The bulge unit 34b extends from the main body unit 34a toward the holding pawl 33b of the movable-side holding member 33. A columnar hook member 34e extending upward from the bulge unit 34b is provided in a portion of the bulge unit 34b on the side of the movable-side holding member 33. The accommodation unit 34c is formed at the leading end of the bulge unit 34b. The first flange 212 of the core 210 can be accommodated in the accommodation unit 34c. The attaching unit 34d extends from the end of the main body unit 34a on the side of the coupling wall 31b toward the movable-side holding member 33.
The pressing plate 36 extends in the horizontal direction Y. The pressing plate 36 covers the movable-side holding member 33 from above. Consequently, the upward movement of the movable-side holding member 33 is regulated.
The opening and closing body 35 is a component that rotates the movable-side holding member 33 about the rotation shaft body 31c. The opening and closing body 35 includes an elastic body 35a and a pressing member 35b. The elastic body 35a can be compressed in the horizontal direction Y. An example of the elastic body 35a is a coil spring. The elastic body 35a is attached to the attaching unit 33d of the movable-side holding member 33 and the attaching unit 34d of the fixed-side holding member 34. The pressing member 35b is formed into an L-shape in planar view. The pressing member 35b is disposed at a position separated from the rotation unit 30A (see
The core opening and closing unit 40A can switch the core holding unit 30B between a core holding state in
The control mechanism 130 (see
As illustrated in
The movable-side holding member 38 includes a coupling unit 38a, a holding arm unit 38b, a first arm unit 38c, and a second arm unit 38d. The rotation shaft body 37d rotatably couples the coupling unit 38a to the arm unit 37b of the fixed-side holding member 37. The coupling unit 38a extends in the vertical direction Z. The holding arm unit 38b extends in a direction separating from the carrier 112 in the front-back direction X from a lower end of the coupling unit 38a. The holding arm unit 38b is formed into a substantial L-shape in side view. A holding unit 38e extending upward is formed at a front end of the holding arm unit 38b. The holding unit 38e faces the holding unit 37c in the vertical direction Z. The first arm unit 38c extends from the upper end of the coupling unit 38a toward the side of the carrier 112 in the front-back direction X. The first arm unit 38c is located above the coupling unit 38a, and faces the coupling unit 38a in the vertical direction Z. The first arm unit 38c is formed into a substantial L-shape in planar view. A pressed unit 38f pressed by the start-line-side wire opening and closing unit 40B is formed at the end on the side of the carrier 112 in the first arm unit 38c. The second arm unit 38d extends from the lower end of the coupling unit 38a toward the side of the carrier 112 in the front-back direction X. The second arm unit 38d is located below the coupling unit 38a, and faces the coupling unit 38a in the vertical direction Z.
The opening and closing body 39 is a component that rotates the movable-side holding member 38 about the rotation shaft body 37d. The opening and closing body 39 includes an elastic body 39a and a pressing bar 39b. The elastic body 39a can be compressed in the vertical direction Z. An example of the elastic body 39a is a coil spring. The elastic body 39a is sandwiched in the vertical direction Z between the second arm unit 38d and the coupling unit 38a. The pressing bar 39b is located on the side of the carrier 112 with respect to the pressed unit 38f of the first arm unit 38c, and faces the pressed unit 38f in the front-back direction X. The pressing bar 39b is coupled to the start-line-side wire opening and closing unit 40B. The pressing bar 39b pushes the pressed unit 38f using the start-line-side wire opening and closing unit 40B.
The start-line-side wire opening and closing unit 40B includes a cylinder 41 and a support member 42 supporting the cylinder 41. An example of the cylinder 41 is a pneumatic cylinder. The start-line-side wire opening and closing unit 40B can move the pressing bar 39b in the front-back direction X by the operation of the cylinder 41.
The start-line-side wire opening and closing unit 40B can switch between the wire holding state in
The control mechanism 130 (see
(Coil Forming Process)
In the coil forming process, the coil 220 is formed on the core 210 as illustrated in
As illustrated in
(Winding Starting Process)
The first moving mechanism 110 and the second moving mechanism 120 in
As illustrated in
As illustrated in
The control mechanism 130 (see
In the winding starting process, the control mechanism 130 may control, instead of the first moving mechanism 110 and the second moving mechanism 120, an arm (not illustrated) that holds and moves the first and second wires W1, W2. In this case, the actuator of the first moving mechanism 110 and the actuator 123 of the second moving mechanism 120 are not driven in the winding starting process.
(Winding Process)
The wire winding mechanism 60 in
As illustrated in
The housing 61 is placed on the carrier 112 of the first moving mechanism 110. As illustrated in
The first rotation body 62 and the second rotation body 63 are arranged in the vertical direction Z. The first rotation body 62 is located below the second rotation body 63. The first rotation body 62 and the second rotation body 63 are rotatable about an axis along the front-back direction X with respect to the housing 61. The wire position support member 66 is inserted in the first rotation body 62. The wire position support member 66 projects forward from the first rotation body 62. The synchronous rotation component 67 is formed into a plate shape extending in the vertical direction Z. The synchronous rotation component 67 couples the first rotation body 62 (wire position support member 66) to the second rotation body 63 to synchronize the rotation of the first rotation body 62 with the rotation of the second rotation body 63.
As illustrated in
As illustrated in
A detailed configuration of the winding unit 60A will be described below. Hereinafter, a direction from the wire winding mechanism 60 toward the holding mechanism 30 in the front-back direction X is defined as forward, and a direction from the holding mechanism 30 toward the wire winding mechanism 60 is defined as backward.
A first accommodation hole 61a and a second accommodation hole 61b, which are two through-holes, are made in the housing 61 as illustrated in
The first bearing unit 64 includes two outer bearings 64a, 64b in which the first rotation body 62 is journaled with respect to the housing 61 and two inner bearings 64c, 64d in which the wire position support member 66 is journaled with respect to the first rotation body 62. The outer bearings 64a, 64b have the same shape. For example, a rolling bearing is used as the outer bearings 64a, 64b. The inner bearings 64c, 64d have the same shape. For example, a rolling bearing is used as the inner bearings 64c, 64d. The rolling bearing includes an inner ring, an outer ring covering the inner ring from the outside, and a plurality of rolling elements disposed in a space between the inner ring and the outer ring. An example of the plurality of rolling elements is a ball or a roller. In the first embodiment, the inner bearings 64c, 64d correspond to the first inner bearing.
The second bearing unit 65 includes two outer bearings 65a, 65b in which the second rotation body 63 is journaled with respect to the housing 61. The outer bearings 65a, 65b have the same shape. For example, a rolling bearing is used as the outer bearings 65a, 65b. In the first embodiment, the same outer bearings as the outer bearings 64a, 64b are used as the outer bearings 65a, 65b.
The first rotation body 62 is formed into a shape in which a plurality of columnar units having different outer diameters are laminated in the front-back direction X. The first rotation body 62 includes a front support unit 62a, a rear support unit 62b, a bulge unit 62c, and a gear attaching unit 62d. The front support unit 62a is provided at the front end of the first rotation body 62. The outer diameter of the front support unit 62a is equal to the outer diameter of the rear support unit 62b, is smaller than the outer diameter of the bulge unit 62c, and is larger than the outer diameter of the gear attaching unit 62d. The front support unit 62a is fitted in the inner ring of the outer bearing 64a. The rear support unit 62b is provided behind the front support unit 62a. The rear support unit 62b is fitted in the inner ring of the outer bearing 64b. The bulge unit 62c is provided between the front support unit 62a and the rear support unit 62b.
The inner ring of the outer bearing 64a contacts with a front end surface of the bulge unit 62c, and the inner ring of the outer bearing 64b contacts with a rear end surface of the bulge unit 62c, thereby positioning the outer bearings 64a, 64b with respect to the first rotation body 62. The gear attaching unit 62d is provided at the rear end of the first rotation body 62. The second gear 69b is attached to the gear attaching unit 62d. The outer rings of the outer bearings 64a, 64b are attached to an inner circumferential surface constituting the first accommodation hole 61a of the housing 61.
The first rotation body 62 is formed outside a center axis J1 of the first rotation body 62, and an insertion hole 62e piercing the first rotation body 62 in the front-back direction X is made. The wire position support member 66 is inserted in the insertion hole 62e, and the inner bearings 64c, 64d are accommodated in the insertion hole 62e. The wire position support member 66 is formed into a columnar shape. The wire position support member 66 includes a front support unit 66a, a rear support unit 66b, and a bulge unit 66c. The bulge unit 66c is provided between the front support unit 66a and the rear support unit 66b. A length in the front-back direction X of the front support unit 66a is longer than a length in the front-back direction X of each of the rear support unit 66b and bulge unit 66c. The outer diameter of the front support unit 66a is equal to the outer diameter of the rear support unit 66b. The outer diameter of the bulge unit 66c is larger than the outer diameter of the front support unit 66a. The front support unit 66a is fitted in the inner ring of the inner bearing 64c. The rear support unit 66b is fitted in the inner ring of the inner bearing 64d. The inner ring of the inner bearing 64c contacts with the front end surface of the bulge unit 66c, and the inner ring of the inner bearing 64d contacts with the rear end surface of the bulge unit 66c, thereby positioning the inner bearings 64c, 64d in the front-back direction X with respect to the wire position support member 66. The outer rings of the inner bearings 64c, 64d are attached to the inner circumferential surface constituting the insertion hole 62e of the first rotation body 62.
A regulation plate 62f is attached to the front end surface of the front support unit 66a in the first rotation body 62 using the bolt B. The regulation plate 62f includes an insertion hole 62g in which the wire position support member 66 is inserted. A fitting unit 62h fitted in the insertion hole 62e of the first rotation body 62 is provided at the circumferential edge of the insertion hole 62g in the regulation plate 62f. The fitting unit 62h is formed into a cylindrical shape. The fitting unit 62h is fitted in the insertion hole 62e, thereby positioning the regulation plate 62f with respect to the front support unit 66a.
The second rotation body 63 is formed into a shape in which a plurality of columnar units having different outer diameters are laminated in the front-back direction X. The second rotation body 63 includes a front support unit 63a, a rear support unit 63b, a bulge unit 63c, and a gear attaching unit 63d. An outer-diameter shape of the second rotation body 63 is equal to an outer-diameter shape of the first rotation body 62. Particularly, the outer diameter of the front support unit 62a is equal to the outer diameter of the front support unit 63a, the outer diameter of the rear support unit 62b is equal to the outer diameter of the rear support unit 63b, the outer diameter of the bulge unit 62c is equal to the outer diameter of the bulge unit 63c, and the outer diameter of the gear attaching unit 62d is equal to the outer diameter of the gear attaching unit 63d. The front support unit 63a is fitted in the inner ring of the outer bearing 65a, and the rear support unit 63b is fitted in the inner ring of the outer bearing 65b. The outer rings of the outer bearings 65a, 65b are attached to the inner circumferential surface of the second accommodation hole 61b.
In the front support unit 63a of the second rotation body 63, a fitting hole 63e is made outside a center axis J2 of the second rotation body 63. A bar-shaped shaft body 63f is fitted in the fitting hole 63e.
A first insertion hole 67a is formed at one end in the longitudinal direction of the synchronous rotation component 67. The shaft body 63f is inserted in the first insertion hole 67a. That is, the synchronous rotation component 67 is rotatably attached to the shaft body 63f. The synchronous rotation component 67 is pinched between the shaft body 63f and a snap ring such as a C-ring in the front-back direction X, thereby regulating the movement in the front-back direction X of the synchronous rotation component 67 with respect to the shaft body 63f.
A second insertion hole 67b is made at the other end in the longitudinal direction of the synchronous rotation component 67. The wire position support member 66 is inserted in the second insertion hole 67b. A fitting hole 67c communicating with the second insertion hole 67b is made in the other end in the longitudinal direction of the synchronous rotation component 67. The fitting hole 67c includes a female screw. A screw member 67d is fitted in the fitting hole 67c. The screw member 67d presses the wire position support member 66 inserted in the second insertion hole 67b. Consequently, the rotation (the rotation of the wire position support member 66 about a center axis J3) of the wire position support member 66 with respect to the synchronous rotation component 67 is prevented.
As illustrated in
A detailed shape of the leading end of the wire position support member 66 will be described.
As illustrated in
As illustrated in
Operations of the first rotation body 62 and the second rotation body 63 will be described.
As illustrated successively in
As illustrated in
As illustrated in
As illustrated in
The wire tension controller 52 controls tension of each of the wires W1, W2 such that the tension of each of the wires W1, W2 from the wire winding support unit 51 becomes previously-set tension by a hysteresis brake (not illustrated). The wire tension controller 52 includes a tension arm 52a and a pulley 52b. The pulley 52b is attached to a leading end of the tension arm 52a. The first and second wires W1, W2 are entrained about the pulley 52b.
The wire route support unit 53 supports the wires W1, W2 fed from the wire tension controller 52, and includes a first pulley 53a and a second pulley 53b. The first pulley 53a and the second pulley 53b downwardly feed the wires W1, W2 fed from the wire tension controller 52. The wires W1, W2 is fed forward by the second pulley 53b, and inserted in the wire position support member 66.
As illustrated in
As illustrated in
As illustrated in
As illustrated in
The support member 75 is disposed between the wire winding mechanism 60 (see
The wire holding retreating mechanism 70 also includes an end-line-side wire holding unit 70C, an end-line-side wire opening and closing unit 70D, and a wire route support unit 70E. The end-line-side wire holding unit 70C and the wire route support unit 70E are attached on the placing table 72a of the movable unit 70A while arranged in the horizontal direction Y. On the other hand, the end-line-side wire opening and closing unit 70D is not attached to the placing table 72a, but disposed at the position facing the end-line-side wire holding unit 70C in the front-back direction X. The wire route support unit 70E hooks the wires W1, W2 such that the wires W1, W2 wound around the core 210 have predetermined tension. The end-line-side wire holding unit 70C switches between the state in which the wires W1, W2 passing through the wire route support unit 70E are held and the state in which the holding of each of the wires W1, W2 is released. The end-line-side wire opening and closing unit 70D switches between the state in which the wires W1, W2 are held by the end-line-side wire holding unit 70C and the state in which the holding of each of the wires W1, W2 is released.
In the wire holding retreating mechanism 70, an arm 74a of the pushing unit 74 of the driving unit 70B downwardly pushes the pressed unit 72c of the movable unit 70A, whereby the moving body 72 moves downward. At this point, the pressed unit 72c comes close to the coupling arm 71 to compress the elastic body 73. As illustrated in
The control mechanism 130 (see
The control mechanism 130 can arbitrarily change the rotation speed and the rotation direction of the core 210 in the core rotation speed control and the orbital revolution speed and the orbital revolution direction of the wire position support member 66 in the orbital revolution speed control. The control mechanism 130 performs two pieces of control (first control and second control) in which the rotation speed and the rotation direction of the core 210 differ from the orbital revolution speed and the orbital revolution direction of the wire position support member 66.
As illustrated in
As illustrated in
When the control mechanism 130 performs only the first control, or when the control mechanism 130 performs only the second control, each of the wires W1, W2 is kinked in association with the orbital revolution of the wire position support member 66. As a result, a kink is likely to be generated in each of the wires W1, W2.
In consideration of the current situation, the control mechanism 130 of the first embodiment performs switching control to switch between the first control and the second control based on a predetermined condition. An example of the predetermined condition is the number of products of the coil component 200. In the first embodiment, the number of products of the coil component 200 is one. That is, the control mechanism 130 switches between the first control and the second control every time the coil 220 is formed in one core 210. For example, in the case that the coil 220 is formed in the core 210 by the first control, the coil 220 is formed in the next core 210 by the second control. That is, the control mechanism 130 repeats a cycle, in which the wires W1, W2 are wound around one core 210 by the first control and the wires W1, W2 are wound around the next core 210 by the second control.
The control mechanism 130 controls the rotation of the core 210 and the orbital revolution of the wire position support member 66 such that the number of rotations of the core 210 and the number of orbital revolutions of the wire position support member 66 in the first control are equal to the number of rotations of the core 210 and the number of orbital revolutions of the wire position support member 66 in the second control. Additionally, the control mechanism 130 controls the rotation speed of the core 210 and the orbital revolution speed of the wire position support member 66 such that an absolute value of a speed of the wire position support member 66 relative to the core 210 in the first control is equal to an absolute value of a speed of the wire position support member 66 relative to the core 210 in the second control. The absolute value of the speed of the wire position support member 66 relative to the core 210 is expressed by an absolute value of a speed difference (B−A) between a rotation speed A of the core 210 and an orbital revolution speed B of the wire position support member 66.
More particularly, information about combinations of the rotation speeds of the core 210 and the orbital revolution speeds of the wire position support member 66 in the first control and the second control is previously stored in the operation storage 132 (see
As can be seen from Table 1, as expressed by a combination 1, the absolute value of the relative speed becomes “100” because of the wire position support member 66 having the orbital revolution speed of “200” with respect to the core 210 having the rotation speed of “100” in the first control, and the absolute value of the relative speed becomes “100” because of the wire position support member 66 having the orbital revolution speed of “300” with respect to the core 210 having the rotation speed of “200” in the second control. In the first embodiment, the control mechanism 130 maintains the orbital revolution speeds of the wire position support member 66 in the first control and the second control, and variably controls the rotation speeds of the core 210 in the first control and the second control. The control mechanism 130 may maintain the rotation speeds of the core 210 in the first control and the second control, and variably control the orbital revolution speeds of the wire position support member 66 in the first control and the second control.
For example, the control mechanism 130 selects the combination of the rotation speeds of the core 210 and the orbital revolution speeds of the wire position support member 66 in the first control and the second control according to a product lot or a product type. By way of example, the control mechanism 130 selects the combination of the rotation speeds of the core 210 and the orbital revolution speeds of the wire position support member 66 in the first control and the second control based on a specification (such as a size or a shape of the core 210 and diameters of the wires W1, W2) of the coil component 200. That is, the control mechanism 130 changes the combination of the rotation speeds of the core 210 and the orbital revolution speeds of the wire position support member 66 in the first control and the second control when the coil component 200 in which the specification is changed is manufactured.
A procedure of the switching control will be described with reference to
In step S321, the control mechanism 130 determines whether or not the coil 220 is formed in the previous core 210 by the first control. The control mechanism 130 performs a determination in step S321 based on information about the previous winding process stored in the operation storage 132. The control mechanism 130 makes a negative determination in step S321 in the case that the coil 220 is formed for the initial core 210 immediately after the manufacturing of the coil component 200 is started, namely, in the case that the previous core 210 does not exist.
The control mechanism 130 performs the second control in step S322 when the coil 220 is formed in the previous core 210 by the first control. On the other hand, the control mechanism 130 performs the first control in step S323 when the coil 220 is not formed in the previous core 210 by the first control.
After selecting the first control or the second control, the control mechanism 130 determines whether or not the winding of each of the wires W1, W2 around the core 210 is ended in step S324. For example, the control mechanism 130 makes the determination in step S324 based on whether or not the number of turns of each of the wires W1, W2 reaches a predetermined number. That is, the control mechanism 130 determines that the winding of each of the wires W1, W2 around the core 210 is ended in the case that the number of turns of each of the wires W1, W2 reaches the predetermined number, and the control mechanism 130 determines that the winding of each of the wires W1, W2 around the core 210 is not ended in the case that the number of turns of each of the wires W1, W2 does not reach the predetermined number. When determining that the winding of each of the wires W1, W2 around the core 210 is ended, the control mechanism 130 stops the rotation of the core 210 and the orbital revolution of the wire position support member 66 in step S325, and temporarily ends the processing. On the other hand, when determining that the winding of each of the wires W1, W2 around the core 210 is not ended, the control mechanism 130 returns to the determination in step S324. That is, the first control or the second control is maintained until the winding of each of the wires W1, W2 around the core 210 by the first control or the second control is ended.
(Winding Ending Process)
The wire holding retreating mechanism 70 (in particular, the end-line-side wire holding unit 70C, the end-line-side wire opening and closing unit 70D, and the wire route support unit 70E), the first moving mechanism 110, and the second moving mechanism 120 are used in the winding ending process.
As illustrated in
The end-line-side wire holding unit 70C holds the first and second wires W1, W2, which are wound around the winding core 211 of the core 210 and hooked on the electrodes 214, 215 of the second flange 213. The end-line-side wire holding unit 70C includes a holding member 76 and an opening and closing member 77. The holding member 76 includes a base 76a having a rectangular parallelepiped shape and a fixed-side holding member 76b attached to the upper end of the base 76a. The base 76a is attached on the placing table 72a. A square-bar-shaped contact unit 76c is provided at the rear end of the fixed-side holding member 76b. The opening and closing member 77 includes a movable-side holding member 77a and an elastic body 77b. The elastic body 77b is attached to the movable-side holding member 77a. The movable-side holding member 77a is inserted so as to be movable in the front-back direction X with respect to the holding member 76. The movable-side holding member 77a includes a contact unit 77c projecting from the holding member 76 toward the side of the core 210 in the front-back direction X and a pressed unit 77d projecting from the holding member 76 toward the side of the end-line-side wire opening and closing unit 70D in the front-back direction X. The contact unit 77c faces the contact unit 76c in the front-back direction X. The wires W1, W2 are pinched between the contact units 76c, 77c. The elastic body 77b biases the movable-side holding member 77a while orienting the movable-side holding member 77a toward the front. The elastic body 77b is accommodated in a space surrounded by the base 76a and the fixed-side holding member 76b.
The end-line-side wire opening and closing unit 70D is attached at the leading end of the arm 79 provided in the driving unit 70B (see
The end-line-side wire holding unit 70C can switch between the wire holding state in
The control mechanism 130 (see
In the moving processing of the winding ending control, the control mechanism 130 may control, instead of the first moving mechanism 110 and the second moving mechanism 120, an arm (not illustrated) that holds and moves the first and second wires W1, W2. In this case, the actuator of the first moving mechanism 110 and the actuator 123 of the second moving mechanism 120 are not driven in the moving processing.
(Wire Connection Process and Excess Wire Cutting Process)
The wire connection mechanism 80 in
In the wire connection process, the wire connection mechanism 80 connects the first wire W1 to the first electrode 214 of the core 210, and connects the second wire W2 to the second electrode 215, thereby electrically connecting the first wire W1 and the first electrode 214, and electrically connecting the second wire W2 and the second electrode 215. In the excess wire cutting process, the wire connection mechanism 80 cuts the excess wire that is of a portion extending from the first electrode 214 and the second electrode 215 of the core 210 toward the opposite side to the coil 220 in the wires W1, W2.
As illustrated in
As illustrated in
As illustrated in
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As illustrated in
The control mechanism 130 (see
The excess wire cutting control includes cutting processing and recovery processing. The cutting processing and the recovery processing are performed in the same period. In the cutting processing, the control mechanism 130 moves the cutting blade 85a of the excess wire cutting unit 85 from the first position to the second position to cut the excess wire in each of the wires W1, W2, and moves the cutting blade 85a from the second position to the first position. The control mechanism 130 changes the start-line-side wire holding unit 30C into the holding release state using the start-line-side wire opening and closing unit 40B, and changes the end-line-side wire holding unit 70C into the holding release state using the end-line-side wire opening and closing unit 70D. Consequently, the excess wire WR drops downward. In the recovery processing, the control mechanism 130 drives the suction fan 92 at a predetermined rotation speed. Consequently, an intake flow is generated from the upper portion of the recovery box 91 toward the opening and inside of the recovery box 91, the excess wire WR is easily recovered in the recovery box 91.
(Component Carrying Process)
The holding mechanism 30, the opening and closing mechanism 40, and the core carrying mechanism 100 are used in the component carrying process. In
As illustrated in
The control mechanism 130 (see
<Taping Apparatus>
A configuration of the taping electronic component array 300 will be described with reference to
As illustrated in
One coil component 200 is accommodated in each recess 314. As illustrated in
As illustrated in
In the longitudinal direction of the carrier tape 312, the first coil component 200A and the second coil component 200B are alternately accommodated in the predetermined number of recesses 314 in each predetermined number. In the first embodiment, because the first coil component 200A and the second coil component 200B are alternately manufactured one by one, the first coil component 200A and the second coil component 200B are alternately accommodated in each recess 314 in the longitudinal direction of the carrier tape 312. That is, in the first embodiment, the predetermined number is one. The core 210 of the first coil component 200A corresponds to the first core, the coil 220 corresponds to the first coil, and the cover member 230 corresponds to the first cover member. The core 210 of the second coil component 200B corresponds to the second core, the coil 220 corresponds to the second coil, and the cover member 230 corresponds to the second cover member.
A disposition direction of the first coil component 200A with respect to the recess 314 is identical to a disposition direction of the second coil component 200B with respect to the recess 314. More particularly, the disposition direction of each of the electrodes 214, 215 in which the winding starting end of the coil 220 of the first coil component 200A is fixed with respect to the recess 314 is matched with the disposition direction of each of the electrodes 214, 215 in which the winding starting end of the coil 220 of the second coil component 200B is fixed with respect to the recess 314. Consequently, the disposition direction of each of the electrodes 214, 215 in which the winding ending end of the coil 220 of the first coil component 200A is fixed with respect to the recess 314 is matched with the disposition direction of each of the electrodes 214, 215 in which the winding ending end of the coil 220 of the second coil component 200B is fixed with respect to the recess 314.
As described above, the following action and effect are obtained in the first embodiment.
(1-1) Assuming that the first rotation body 62 and the wire position support member 66 are fixed, according to the rotation position of the first rotation body 62, namely, the orbital revolution position of the wire position support member 66, the attitude of the wire position support member 66 changes when the wire position support member 66 is viewed in the axial direction. That is, the wire position support member 66 rotates about the center axis J3 while the first rotation body 62 makes one rotation.
In the first embodiment, the wire position support member 66 is supported by the inner bearings 64c, 64d while being rotatable with respect to the first rotation body 62. When the first rotation body 62 rotates, the first rotation body 62 and the wire position support member 66 rotate relatively by the inner bearings 64c, 64d according to the orbital revolution of the wire position support member 66. Consequently, the rotation of the wire position support member 66 due to the rotation of the first rotation body 62 can be prevented when the wire position support member 66 is viewed in the axial direction.
When the first rotation body 62 and the second rotation body 63 rotate synchronously, the synchronous rotation component 67 to which the wire position support member 66 is fixed revolves orbitally about the center axis J1 of the first rotation body 62 and the center axis J3 of the second rotation body 63 while the attitude of the synchronous rotation component 67 is maintained. Consequently, the rotation of the wire position support member 66, which is unrotatably fixed to the synchronous rotation component 67, is prevented by the synchronous rotation component 67. When the wire position support member 66 revolves orbitally while the wires W1, W2 contact with the wire position support member 66, the rotation of the wire position support member 66 can be prevented even if the wires W1, W2 try to cause the wire position support member 66 to rotate. Thus, the rotation of the wire position support member 66 is prevented, so that generation of the twist can be prevented between the wire position support member 66 and the second pulley 53b in each of the wires W1, W2.
(1-2) The inner bearings 64c, 64d are a rolling bearing. For this reason, the rotation of the first rotation body 62 can be received by a simple configuration compared with a magnetic bearing. Consequently, the configuration of the winding unit 60A can be simplified.
(1-3) The winding unit 60A further includes the screw member 67d pressing the wire position support member 66 against the inner circumferential surface constituting the second insertion hole 67b in which the wire position support member 66 is inserted in the synchronous rotation component. For this reason, the rotation of the wire position support member 66 can be prevented by frictional force between the outer circumferential surface of the wire position support member 66 and the inner circumferential surface of the second insertion hole 67b. Thus, for example, the rotation of the wire position support member 66 with respect to the synchronous rotation component 67 can be prevented even if the outer shape of the wire position support member 66 is not changed.
(1-4) The winding driving unit 60B includes the motor 68b constituting the driving source and the transmission mechanism 69 that transmits the rotating force of the motor 68b to the first rotation body 62 and the second rotation body 63. In this configuration, the transmission mechanism 69 rotates the first rotation body 62 and the second rotation body 63 using one motor 68b, so that the number of components of the winding driving unit 60B can be decreased.
(1-5) The shaft body 63f of the second rotation body 63 is rotatably coupled to the synchronous rotation component 67. This enables the prevention of the change in attitude of the synchronous rotation component 67 depending on the orbital revolution position of the shaft body 63f with respect to the center axis J2 of the second rotation body 63. Thus, the rotation of the wire position support member 66 due to the change in attitude of the synchronous rotation component 67 can be prevented.
(1-6) In the front end surface 66f constituting the regulation unit in the wire position support member 66, the opening is formed on the side on which the first wire W1 is fed in the first wire route hole 66d of the wire position support member 66, and the opening is formed on the side on which the second wire W2 is fed in the second wire route hole 66e. Consequently, in the case that the first wire route hole 66d is separated from the core 210 with respect to the second wire route hole 66e during the orbital revolution of the wire position support member 66 around the core 210, the first wire W1 fed from the first wire route hole 66d passes on the second wire route hole 66e by the front end surface 66f. In the case that the second wire route hole 66e is separated from the core 210 with respect to the first wire route hole 66d, the second wire W2 fed from the second wire route hole 66e passes on the first wire route hole 66d by the front end surface 66f. Thus, even if the wire position support member 66 revolves orbitally around the core 210, the wires W1, W2 are prevented from being entangled in a part of the wire position support member 66.
In the first embodiment, the front end surface 66f of the wire position support member 66 is formed into the spherical shape. Consequently, in the case that the first wire W1 crosses the second wire route hole 66e during the orbital revolution of the wire position support member 66 around the core 210, the first wire W1 passes through the position (the position on the front side) separated from the second wire route hole 66e in the axial direction of the wire position support member 66. On the other hand, in the case that the second wire W2 crosses the first wire route hole 66d, the second wire W2 passes through the position (the position on the front side) separated from the first wire route hole 66d in the axial direction of the wire position support member 66. Thus, even if the wire position support member 66 revolves orbitally around the core 210, the wires W1, W2 are further prevented from being entangled in a part of the wire position support member 66.
(1-7) The wire position support member 66 has the columnar outer shape. Consequently, the wire position support member 66 and the core 210 can be brought closer to each other compared with a wire position support member having a polygonal columnar shape. For this reason, the orbital revolution diameter of the wire position support member 66 can be decreased, and miniaturization of the winding apparatus 1 (winding unit 60A) can be achieved. In the case that the orbital revolution diameter of the wire position support member 66 is equal to that of the wire position support member having the polygonal columnar shape, the wire position support member 66 is hard to contact with the core 210 compared with the wire position support member having the polygonal columnar shape.
(1-8) The control mechanism 130 performs the first control, in which the rotation direction of the core 210 is matched with the orbital revolution direction of the wire position support member 66 and the orbital revolution speed of the wire position support member 66 is set faster than the rotation speed of the core 210. The control mechanism 130 also performs the second control, in which the rotation direction of the core 210 is matched with the orbital revolution direction of the wire position support member 66, which is the opposite direction to the rotation direction of the core 210 and the orbital revolution direction of the wire position support member 66 in the first control, and the orbital revolution speed of the wire position support member 66 is reduced lower than the rotation speed of the core 210. In this configuration, the kink direction of each of the first and second wires W1, W2 in the first control is opposite to the kink direction of each of the first and second wires W1, W2 in the second control.
The control mechanism 130 switches between the first control and the second control based on a predetermined condition. For this reason, even if each of the first and second wires W1, W2 is kinked by the first control, the kink of each of the first and second wires W1, W2 is decreased by the second control. The kink of each of the first and second wires W1, W2 is decreased compared with the case that the first and second wires W1, W2 are wound around the core 210 only by the first control or the second control. Thus, the generation of the kink of each of the first and second wires W1, W2 can be prevented between the wire feeding mechanism 50 and the wire position support member 66.
The winding directions of the first and second wires W1, W2 around the core 210 in the first control are matched with the winding directions of the first and second wires W1, W2 around the core 210 in the second control. For this reason, a magnetic flux orientation in supplying electric power to the coil 220 of the coil component 200 manufactured by the first control is matched with a magnetic flux orientation in supplying electric power to the coil 220 of the coil component 200 manufactured by the second control. Thus, mixture of the coil components 200 having different magnetic flux orientations can be prevented.
(1-9) The control mechanism 130 switches between the first control and the second control in each core 210. For this reason, a kink amount of each of the first and second wires W1, W2 in the first control is substantially equal to a kink amount of each of the wires W1, W2 in the second control. Thus, the kink of each of the first and second wires W1, W2 is substantially eliminated when the control mechanism 130 switches between the first control and the second control, so that the generation of the kink of each of the first and second wires W1, W2 can be prevented between the wire feeding mechanism 50 and the wire position support member 66.
(1-10) The absolute value of the speed of the wire position support member 66 relative to the core 210 in the first control is equal to the absolute value of the speed of the wire position support member 66 relative to the core 210 in the second control. In this configuration, the number of twists of each of the first and second wires W1, W2 per one turn of each of the first and second wires W1, W2 wound around the core 210 in the first control is equal to the number of twists of each of the first and second wires W1, W2 per one turn of each of the first and second wires W1, W2 wound around the core 210 in the second control. Thus, the generation of performance variation of the coil component 200 can be prevented.
(1-11) The plurality of recesses 314 of the carrier tape 312 include the recess 314 in which the first coil component 200A is accommodated and the recess 314 in which the second coil component 200B is accommodated. For this reason, a process of selecting the first coil component 200A and the second coil component 200B is eliminated with this carrier tape, compared with a tape in which only the first coil component 200A is accommodated or a tape in which only the second coil component 200B is accommodated, so that degradation of manufacturing capacity of the taping electronic component array 300 can be prevented.
(1-12) The disposition direction of the winding starting end of the coil 220 of the first coil component 200A with respect to the recess 314 is matched with a disposition direction of the winding starting end of the coil 220 of the second coil component 200B with respect to the recess 314. For this reason, necessity of a process of aligning the orientations of the first coil component 200A and the second coil component 200B is eliminated when the first coil component 200A and the second coil component 200B are mounted on the circuit board. Thus, efficiency of mounting work of the first coil component 200A and the second coil component 200B can be enhanced.
(1-13) The coil component 200 includes the magnetic cover member 230. Consequently, the leakage of the magnetic flux of the coil component 200 is prevented because the magnetic flux leaking from the coil 220 flows in the cover member 230. Thus, an inductance value (L value) of the coil component 200 can be increased.
(1-14) The center C of the first and second wires W1, W2 of the second pulley 53b is matched with the center axis J1 of the first rotation body 62. Consequently, the change in distance between the center C of the second pulley 53b and the wire position support member 66 is prevented even if the wire position support member 66 revolves orbitally in association with the rotation of the first rotation body 62. Thus, the change in tension of each of the wires W1, W2 in association with the orbital revolution of the wire position support member 66 can be prevented.
(1-15) In the winding process, the wire holding retreating mechanism 70 downwardly retreats the end-line-side wire holding unit 70C, the end-line-side wire opening and closing unit 70D, and the wire route support unit 70E. Consequently, the end-line-side wire holding unit 70C, the end-line-side wire opening and closing unit 70D, and the wire route support unit 70E avoid interfering with the wire position support member 66 even if the wire position support member 66 revolves orbitally. For this reason, the end-line-side wire holding unit 70C, the end-line-side wire opening and closing unit 70D, and the wire route support unit 70E are disposed close to the core 210, so that the enlargement of the winding apparatus 1 can be prevented.
A winding apparatus 1 of a second embodiment will be described with reference to
As illustrated in
As illustrated in
The control mechanism 130 can arbitrarily set the rotation speed of the core 210 and the orbital revolution speed of the wire position support member 66. BY way of example, the rotation speed of the core 210 in the first control is equal to the rotation speed of the core 210 in the second control, and the orbital revolution speed of the wire position support member 66 in the first control is equal to the orbital revolution speed of the wire position support member 66 in the second control. That is, the absolute value of the speed of the wire position support member 66 relative to the core 210 in the first control is equal to the absolute value of the speed of the wire position support member 66 relative to the core 210 in the second control.
The control mechanism 130 of the second embodiment performs switching control similar to the switching control of the first embodiment. In the switching control, the first control and the second control are switched every time the coil 220 is formed in one core 210. For example, in the case that the coil 220 is formed in the core 210 by the first control, the coil 220 is formed in the next core 210 by the second control. That is, the control mechanism 130 repeats a cycle, in which the wires W1, W2 are wound around one core 210 by the first control and the wires W1, W2 are wound around the next core 210 by the second control.
The control mechanism 130 controls the rotation of the core 210 and the orbital revolution of the wire position support member 66 such that the number of rotations of the core 210 and the number of orbital revolutions of the wire position support member 66 in the first control are equal to the number of rotations of the core 210 and the number of orbital revolutions of the wire position support member 66 in the second control. For example, the control mechanism 130 sets the rotation speeds of the core 210 and the orbital revolution speeds of the wire position support member 66 in the first control and the second control according to the product lot or the product type. By way of example, the control mechanism 130 sets the rotation speeds of the core 210 and the orbital revolution speeds of the wire position support member 66 in the first control and the second control based on the specification (such as a size or a shape of the core 210 and diameters of the wires W1, W2) of the coil component 200. That is, the control mechanism 130 changes the rotation speeds of the core 210 and the orbital revolution speeds of the wire position support member 66 in the first control and the second control when the coil component 200 in which the specification is changed is manufactured. As described above, the effects similar to the effects (1-7) to (1-9) of the first embodiment are obtained in the second embodiment.
A winding apparatus 1 of a third embodiment will be described with reference to
As illustrated in
The control mechanism 130 controls the rotation speed of the core 210 and the orbital revolution speed of the wire position support member 66 such that the absolute value of the speed of the wire position support member 66 relative to the core 210 in the first control is equal to the absolute value of the speed of the wire position support member 66 relative to the core 210 in the second control.
The control mechanism 130 of the third embodiment performs switching control similar to the switching control of the first embodiment. In the switching control, the first control and the second control are switched every time the coil 220 is formed in one core 210. By way of example, the control mechanism 130 controls the orbital revolution of the wire position support member 66 such that the number of orbital revolutions of the wire position support member 66 in the first control are equal to the number of orbital revolutions of the wire position support member 66 in the second control. Specifically, in the case that the coil 220 is formed in one core 210 by the first control, the coil 220 is formed in the next one core 210 by the second control. That is, the control mechanism 130 repeats a cycle, in which the wires W1, W2 are wound around one core 210 by the first control and the wires W1, W2 are wound around the next core 210 by the second control. As described above, the effects similar to the effects (1-7) to (1-9) of the first embodiment are obtained in the third embodiment.
(Modifications)
The description of each of the above embodiments is an illustrative of a mode of the disclosure, but is not intended to restrict the mode. The following modifications of the above embodiments and a combination of at least two modifications can be made in the disclosure.
<Configuration of Winding Apparatus 1>
The inner bearings 65c, 65d correspond to the second inner bearing. In this configuration, the wires W1, W2 are wound around the core 210 using the wire position support member 66 inserted in the first rotation body 62, and the wires W1, W2 can be wound around another core 210 using the wire position support member 66 inserted in the second rotation body 63. Thus, manufacturing efficiency of the coil component 200 can be enhanced. In the above modification, two first rotation bodies 62 may be arranged in the horizontal direction Y as illustrated in
(A) As illustrated in
In this configuration, in the case that the first wire W1 crosses the second wire route hole 66e during the orbital revolution of the wire position support member 66 around the core 210, the first wire W1 runs on the convex surface 141 because the convex surface 141 is formed between the first wire route hole 66d and the second wire route hole 66e. For this reason, the first wire W1 passes on the opening end surface on the side on which the second wire W2 is fed in the second wire route hole 66e, or passes through the position separated from the opening end surface in the axial direction of the wire position support member 66. In the case that the second wire W2 crosses the first wire route hole 66d, because the second wire W2 runs on the convex surface 141, the second wire W2 passes on the opening end surface on which the first wire W1 is fed in the first wire route hole 66d, or passes through the position separated from the opening end face in the axial direction of the wire position support member 66. Thus, the wires W1, W2 can be prevented from being entangled in the wire position support member 66.
(B) As illustrated in
(C) As illustrated in
In this configuration, in the case that the first wire W1 crosses the second wire route hole 66e during the orbital revolution of the wire position support member 66 around the core 210, because the first wire W1 passes on the plane between the first wire route hole 66d and the second wire route hole 66e, the first wire W1 passes on the opening end surface on which the second wire W2 is fed in the second wire route hole 66e. Because the second wire W2 passes on the plane between the first wire route hole 66d and the second wire route hole 66e, the second wire W2 passes on the opening end surface on which the first wire W1 is fed in the first wire route hole 66d. Thus, the wires W1, W2 can be prevented from being entangled in the wire position support member 66.
(D) As illustrated in
In this configuration, the wires W1, W2 pass on the leading end surface of the circumferential wall 145 when the wire position support member 66 revolves orbitally around the core 210. Consequently, the first wire W1 passes on the opening end surface on which the second wire W2 is fed in the second wire route hole 66e, or passes through the position separated from the opening end surface, and the second wire W2 passes on the opening end surface on which the first wire W1 is fed in the first wire route hole 66d, or passes through the position separated from the opening end surface. Thus, the wires W1, W2 can be prevented from being entangled in the wire position support member 66.
(E) In the wire position support member 66 in
In this configuration, because the wires W1, W2 pass on the coupling surface 147 during the orbital revolution of the wire position support member 66 around the core 210, the first wire W1 passes on the opening end surface on which the second wire W2 is fed in the second wire route hole 66e and the second wire W2 passes on the opening end surface on which the first wire W1 is fed in the first wire route hole 66d. Thus, the wires W1, W2 can be prevented from being entangled in the wire position support member 66. In the wire position support member 66 of
As illustrated in
As illustrated in
As illustrated in
As illustrated in
The first wire W1 and the second wire W2 are inserted in the wire route hole 148. An inner diameter of the wire route hole 148 is larger than inner diameters of the first wire route hole 66d and the second wire route hole 66e. As illustrated in
<Control of Winding Apparatus 1>
During the performance of one of the first control and the second control, the control mechanism 130 changes to the other of the first control and the second control when the number of orbital revolutions of the wire position support member 66 reaches a previously-set threshold. Preferably the number of orbital revolutions of the wire position support member 66 in the first control is equal to the number of orbital revolutions of the wire position support member 66 in the second control.
In this configuration, the kink amount of each of the wires W1, W2 in the first control is substantially equal to the kink amount of each of the wires W1, W2 in the second control. Thus, the kink of each of the wires W1, W2 is substantially eliminated when the control mechanism 130 switches between the first control and the second control, so that the generation of the kink of each of the wires W1, W2 can be prevented between the wire feeding mechanism 50 and the wire position support member 66.
In each of the wires W1, W2, the portion between the core 210 and the first wire route hole 66d and the second wire route hole 66e of the wire position support member 66 is twisted in association with the orbital revolution of the wire position support member 66. When the number of twists is excessively increased, the whole portion between the core 210 and the wire position support member 66 in each of the wires W1, W2 is twisted, excessive tension is likely to be applied to each of the wires W1, W2. In that respect, the control mechanism 130 switches between the first control and the second control when the number of twists reaches the upper limit, so that the wire position support member 66 revolves orbitally such that the twist of the portion between the core 210 and the wire position support member 66 in each of the wires W1, W2 is eliminated. Thus, the excessive tension due to the twist of the portion between the core 210 and the wire position support member 66 in each of the wires W1, W2 is prevented from being applied to the wires W1, W2.
(Supplements)
Technical ideas that can be recognized from the above embodiments and modifications will be described below.
(Supplement 1)
A winding apparatus including: a first rotation body; a wire position support member inserted in an insertion hole made outside a center axis of the first rotation body, the wire position support member including a wire route hole in which a wire is inserted; a second rotation body that is disposed while separated from the first rotation body; a shaft body provided outside a center axis of the second rotation body; a synchronous rotation component that couples the wire position support member and the shaft body while being unrotatably fixed to the wire position support member; a winding driving unit that synchronously rotates the first rotation body and the second rotation body; and a first inner bearing disposed between the wire position support member in the insertion hole and the first rotation body, in which the wire position support member is journaled with respect to the first rotation body.
(Supplement 2)
In the winding apparatus according to the supplement 1, the first inner bearing is a rolling bearing.
(Supplement 3)
The winding apparatus according to the supplement 1 or 2 further including a pushing member that presses the wire position support member against an inner surface constituting an insertion hole, and the synchronous rotation component includes the insertion hole in which the wire position support member is inserted.
(Supplement 4)
In the winding apparatus according to any one of the supplements 1 to 3, the shaft body is rotatably coupled to the synchronous rotation component.
(Supplement 5)
The winding apparatus according to any one of the supplements 1 to 4 further including a second inner bearing in which the shaft body is journaled with respect to the second rotation body, and the shaft body is the wire position support member including a plurality of the wire route holes in which the wire is inserted.
(Supplement 6)
In the winding apparatus according to any one of the supplements 1 to 5, the winding driving unit includes a motor constituting a driving source and a transmission mechanism that transmits rotating force of the motor to the first rotation body and the second rotation body.
(Supplement 7)
A winding apparatus for a coil component in which a plurality of wires are wound around a core, the winding apparatus including: a wire position support member including wire route holes in which the plurality of wires are inserted; a wire feeding mechanism that feeds the plurality of wires to the wire position support member such that tension is applied to the plurality of wires; a winding driving unit that orbitally revolves the wire position support member around the core such that the plurality of wires are wound around the core while twisted; a rotation unit that rotates the core; and a controller that controls the winding driving unit and the rotation unit, the controller including first control, in which a rotation direction of the core is matched with an orbital revolution direction of the wire position support member and an orbital revolution speed of the wire position support member is faster than a rotation speed of the core, and second control, in which the rotation direction of the core is matched with the orbital revolution direction of the wire position support member, which is the opposite direction to the rotation direction of the core and the orbital revolution direction of the wire position support member in the first control, and the orbital revolution speed of the wire position support member is slower than the rotation speed of the core, the controller switching between the first control and the second control based on a predetermined condition.
(Supplement 8)
A winding apparatus for a coil component in which a plurality of wires are wound around a core, the winding apparatus including: a wire position support member including wire route holes in which the plurality of wires are inserted; a wire feeding mechanism that feeds the plurality of wires to the wire position support member such that tension is applied to the plurality of wires; a winding driving unit that orbitally revolves the wire position support member around the core such that the plurality of wires are wound around the core while twisted; a rotation unit that rotates the core; and a controller that controls the winding driving unit and the rotation unit, the controller including first control, in which the core is not rotated but the wire position support member is orbitally revolved in a first rotation direction, and second control, in which the core is rotated in a second rotation direction that is of an opposite direction to the first rotation direction, the wire position support member is orbitally revolved in the second rotation direction, and a rotation speed of the core is faster than an orbital revolution speed of the wire position support member, the controller switching between the first control and the second control based on a predetermined condition.
(Supplement 9)
In the winding apparatus according to the supplement 7 or 8, the predetermined condition is the number of orbital revolutions of the wire position support member, and the number of orbital revolutions of the wire position support member in the first control is equal to the number of orbital revolutions of the wire position support member in the second control.
(Supplement 10)
In the winding apparatus according to the supplement 7 or 8, the predetermined condition is the number of products of the coil component, and the controller repeats a cycle, in which the plurality of wires are wound around one core based on the first control and the plurality of wires are wound around next one core based on the second control.
(Supplement 11)
In the winding apparatus according to any one of the supplements 7 to 10, an absolute value of a speed of the wire position support member relative to the core in the first control is equal to an absolute value of a speed of the wire position support member relative to the core in the second control.
(Supplement 12)
In the winding apparatus according to any one of the supplements 7 to 11, the controller switches between the first control and the second control in preference to the predetermined condition when the number of twists that is of a number in which the plurality of wires are twisted between the core and the wire position support member reaches an upper limit.
(Supplement 13)
A method for manufacturing a coil component in which a plurality of wires are wound around a core, the coil component manufacturing method including: a core preparation process of preparing the core; a winding starting process of hooking a winding starting end in the plurality of wires inserted in wire route holes of a wire position support member on an electrode corresponding to the winding starting end in the core while tension is applied to the plurality of wires; a winding process of orbitally revolving the wire position support member in a direction identical to a rotation direction of the core while rotating the core, and winding the plurality of wires around the core while twisting the plurality of wires; a winding ending process of hooking a winding ending end in the plurality of wires on an electrode corresponding to the winding ending end in the core; and a fixing process of fixing the winding starting end to the electrode corresponding to the winding starting end in the core, and fixing the winding ending end to the electrode corresponding to the winding ending end in the core. In the winding process, switching between first control, in which the rotation direction of the core is matched with an orbital revolution direction of the wire position support member and an orbital revolution speed of the wire position support member is faster than a rotation speed of the core, and second control, in which the rotation direction of the core is matched with the orbital revolution direction of the wire position support member, which is the opposite direction to the rotation direction of the core and the orbital revolution direction of the wire position support member in the first control, and the orbital revolution speed of the wire position support member is slower than the rotation speed of the core, is performed based on a predetermined condition.
(Supplement 14)
A method for manufacturing a coil component in which a plurality of wires are wound around a core, the coil component manufacturing method including: a core preparation process of preparing the core; a winding starting process of hooking a winding starting end in the plurality of wires inserted in wire route holes of a wire position support member on an electrode corresponding to the winding starting end in the core while tension is applied to the plurality of wires; a winding process of orbitally revolving the wire position support member around the core, and winding the plurality of wires around the core while twisting the plurality of wires; a winding ending process of hooking a winding ending end in the plurality of wires on an electrode corresponding to the winding ending end in the core; and a fixing process of fixing the winding starting end to the electrode corresponding to the winding starting end in the core, and fixing the winding ending end to the electrode corresponding to the winding ending end in the core. In the winding process, switching between first control, in which the core is not rotated but the wire position support member is orbitally revolved in a first rotation direction, and second control, in which the core is rotated in an opposite direction to the first rotation direction, the wire position support member is orbitally revolved in the opposite direction to the first rotation direction, and a rotation speed of the core is faster than an orbital revolution speed of the wire position support member, is performed based on a predetermined condition.
(Supplement 15)
A winding apparatus that winds a first wire and a second wire around a core, the winding apparatus including: a wire position support member including a first feeding unit including a first wire route hole in which the first wire is inserted and a second feeding unit including a second wire route hole in which the second wire is inserted; and a winding driving unit that orbitally revolves the wire position support member around the core. The wire position support member includes a regulation unit that regulates movement of the first wire and the second wire such that, when the wire position support member revolves orbitally around the core, the first wire passes on an opening end surface from which the second wire is fed in the second wire route hole while the second wire passes on an opening end surface from which the first wire is fed in the first wire route hole.
(Supplement 16)
In the winding apparatus according to the supplement 15, the regulation unit includes a coupling surface that is coupled to an end surface from which the first wire is fed in the first feeding unit and an end surface from which the second wire is fed in the second feeding unit so as to be flush with both the end surfaces.
(Supplement 17)
In the winding apparatus according to the supplement 15, the regulation unit includes a circumferential wall surrounding the first feeding unit and the second feeding unit in a direction orthogonal to an axial direction of the wire position support member, and a leading end surface of the circumferential wall is formed so as to be flush with the end surface from which the first wire is fed in the first feeding unit and the end surface from which the second wire is fed in the second feeding unit, or formed at a position projecting from the end surface from which the first wire is fed in the first feeding unit and the end surface from which the second wire is fed in the second feeding unit.
(Supplement 18)
In the winding apparatus according to the supplement 15, the wire position support member is formed into one columnar shape including the first feeding unit and the second feeding unit, and the regulation unit includes a convex surface that projects from the end surface of the first feeding unit and the end surface of the second feeding unit when viewed in a direction orthogonal to both an array direction of the first feeding unit and the second feeding unit and an axial direction of the wire position support member.
(Supplement 19)
In the winding apparatus according to the supplement 15, the wire position support member is formed into one columnar shape including the first feeding unit and the second feeding unit, the regulation unit is an end surface in which an opening on a side on which the first wire is fed in the first wire route hole of the wire position support member and an opening on a side on which the second wire is fed in the second wire route hole are formed, and the end surface includes a plane orthogonal to an axial direction of the wire position support member.
(Supplement 20)
In the winding apparatus according to the supplement 15, the wire position support member is formed into one columnar shape including the first feeding unit and the second feeding unit, the regulation unit is an end surface in which an opening on a side on which the first wire is fed in the first wire route hole of the wire position support member and an opening on a side on which the second wire is fed in the second wire route hole are formed, and the end surface includes a spherical surface.
(Supplement 21)
In the winding apparatus according to the supplement 19 or 20, the wire position support member has a columnar outer shape.
(Supplement 22)
In the winding apparatus according to the supplement 19 or 20, the wire position support member has a polygonal columnar outer shape.
(Supplement 23)
A taping electronic component array including: a long carrier tape in which a plurality of recesses are provided along a longitudinal direction; a tape including a cover tape that is provided on the carrier tape so as to cover the plurality of recesses; and an electronic component disposed in each of the plurality of recesses. The electronic component includes a first coil component and a second coil component, the first coil component includes a first core and a first coil in which a plurality of wires are wound around the first core in a predetermined winding direction while twisted in a predetermined twist direction, the second coil component includes a second core and a second coil in which the plurality of wires are wound around the second core in the predetermined winding direction while twisted in an opposite direction to the predetermined twist direction.
(Supplement 24)
In the taping electronic component array according to the supplement 23, the first coil component and the second coil component are alternately disposed in the plurality of recesses in each predetermined number.
(Supplement 25)
In the taping electronic component array according to the supplement 24, the predetermined number is one.
(Supplement 26)
In the taping electronic component array according to any one of the supplements 23 to 25, the first core includes an electrode to which an winding starting end of the first coil is fixed and an electrode to which an winding ending end of the first coil is fixed, the second core includes an electrode to which an winding starting end of the second coil is fixed and an electrode to which an winding ending end of the second coil is fixed, and a disposition direction of the electrode to which the winding starting end of the first coil is fixed with respect to the recess is matched with a disposition direction of the electrode to which the winding starting end of the second coil is fixed with respect to the recess.
(Supplement 27)
In the taping electronic component array according to any one of the supplements 23 to 26, the first coil component includes a magnetic first cover member that is attached to the first core so as to cover the first coil, and the second coil component includes a magnetic second cover member that is attached to the second core so as to cover the second coil.
Number | Date | Country | Kind |
---|---|---|---|
2017-095257 | May 2017 | JP | national |