Patent Application
20180056410
The present disclosure relates to a machine configured to form whip(s) from a length of cable.
Electrical power cables are traditionally installed in commercial buildings using straight lengths of steel or aluminum conduit. In recent years, flexible metallic cable AKA MC (metal clad) cable, BX cable, AC cable and Greenfield flexible conduit have become popular as a faster, less expensive option to install various electrical conductors into buildings. The flexible metal cable is formed of a helical, spiral wound strip of aluminum or steel which is roll-formed to lock onto itself. The metal cable is sold in 25-foot to 1000-foot reel lengths and is pre-loaded with various numbers of wires, wire sizes, and insulator colors. The flexible metal cable can be cut to length with shearing cable cutter, a hacksaw, or a rotary cutoff saw, and the ends can be stripped to expose the wire ends. Stripping the cable involves cutting one width of the metallic helical wound strip and then pulling the cut end of the conduit off of the cable. Various methods have been devised to cut the metallic conduit without damaging the wires inside, but all such known methods require considerable time and effort.
A machine configured to form whip(s) from a length of cable in accordance with some example embodiments includes an input and an output defining a cable travel space being therebetween; a clamping assembly including a pad, and a first driving assembly configured to move the pad into the cable travel space and out of the cable travel space; and a cutting assembly including a cutting tool having at least one cutting edge, and a second driving assembly configured to move the cutting tool into the cable travel space and out of the cable travel space. In some embodiments, the machine further includes a saw assembly including a notching saw having a cutting edge configured to intersect the cable travel space, and a third driving assembly configured to drive the notching saw.
This Summary is provided merely for purposes of summarizing some example embodiments so as to provide a basic understanding of some aspects of the disclosure. Accordingly, it will be appreciated that the above described example embodiments are merely examples and should not be construed to narrow the scope or spirit of the disclosure in any way. Other embodiments, aspects, and advantages of various disclosed embodiments will become apparent from the following detailed description taken in conjunction with the accompanying drawings which illustrate, by way of example, the principles of the described embodiments.
The organization and manner of the structure and operation of the disclosed embodiments, together with further objects and advantages thereof, may best be understood by reference to the following description, taken in connection with the accompanying drawings, which are not necessarily drawn to scale, wherein like reference numerals identify like elements in which:
While the disclosure may be susceptible to embodiment in different forms, there is shown in the drawings, and herein will be described in detail, a specific embodiment with the understanding that the present disclosure is to be considered an exemplification of the principles of the disclosure, and is not intended to limit the disclosure to that as illustrated and described herein. Therefore, unless otherwise noted, features disclosed herein may be combined together to form additional combinations that were not otherwise shown for purposes of brevity. It will be further appreciated that in some embodiments, one or more elements illustrated by way of example in a drawing(s) may be eliminated and/or substituted with alternative elements within the scope of the disclosure.
A machine 20 configured to cut a flexible metal clad cable 22 to form a whip is disclosed. The cable 22 may be coated with polyvinyl chloride (PVC). The machine 20 cuts the cable 22 such that the cut end of the cable 22 can be easily removed. A length(s) of cable is fed into a feed end 24 of the machine 20. The formed whip (not shown) exits a discharge end 26 of the machine 20. A whip is also called a pig-tail.
Metal clad cables are known. A metal clad cable 22 has a plurality of wires which are surrounded by a metal jacket. The metal jacket is formed of a plurality of overlapping turns which form a helical shape along the length of the cable 22.
The machine 20 includes a feed assembly 28 configured to advance the cable 22 through the machine 20 from the feed end 24 to the discharge end 26, a notching saw 30 which notches the cable 22 and a cutting assembly 66 which cuts the cable 22 into individual whips. The machine 20 further includes a clamping assembly 34, 1034, which clamps the cable 22 to deter the cable 22 from moving upwardly and downwardly or side to side in the machine 20 (that is, any direction which is angled relative to the translation direction of the cable 22 through the machine 20) while the cable 22 is being notched by the notching saw 30 and the cutting assembly 66. A first embodiment of the cutting assembly 66 is shown for example in
In an embodiment, the cable 22 is fed through the machine 20 by the feed assembly 28 until a first predetermined location on the cable 22 is positioned underneath the notching saw 30 and within the clamping assembly 34, 1034 when the machine 20 is in a raised position. The machine 20 is moved to a clamping position (discussed in detail herein) such that the clamping assembly 34, 1034 is actuated to engage with the cable 22 and to deter movement of the cable 22. In some embodiments, the machine 20 is back tensioned to provide tension to the cable 22 prior to the cable 22 being further acted upon. Thereafter, the machine 20 is moved to a notching position (discussed in detail herein) such that the notching saw 30 is then engaged with the cable 22 to cut or “notch” the metal jacket of the cable 22 at the first predetermined location on the cable 22 by forming a first notch in the cable 22 which cuts a complete turn of the cable 22. During the notching, the wires within the cable 22 are not cut. For example, the first notch can be formed 6 to 8 inches away from where the end of the whip is ultimately provided. The first notch is formed parallel to or substantially parallel to the centerline of the cable 22. The clamping assembly 34, 1034 remains engaged, but does not prevent this movement by the feed assembly 28. Thereafter, in an embodiment, the notching saw 30 and the clamping assembly 34, 1034 are moved to the raised position such that the notching saw 30 and the clamping assembly 34, 1034 are disengaged from the cable 22. In some embodiments, the machine 20 is moved to the clamping position such that only the notching saw 30 is raised to disengage from the cable 22, but the clamping assembly 34, 1034 remains engaged with the cable 22. The cable 22 is then advanced a predetermined amount by the feed assembly 28 toward the discharge end 26 of the machine 20 until a second predetermined location on the cable 22 is positioned underneath the notching saw 30. If the machine 20 was moved to the raised position, the machine 20 is again moved to the clamping position such that the clamping assembly 34, 1034 is actuated to engage with the cable 22 and to deter movement of the cable 22. In some embodiments, the machine 20 is again back tensioned to provide tension to the cable 22 prior to the cable 22 being further acted upon. Thereafter, the machine 20 is moved to the notching position such that the notching saw 30 is then engaged with the cable 22 to cut or “notch” the metal jacket of the cable 22 at the second predetermined location on the cable 22 by forming a second notch in the cable 22 which cuts a complete turn of the cable 22 and which is spaced from the first notch. During the notching, the wires within the cable 22 are not cut. For example, the second notch can be formed 6 to 8 inches away from where the end of the whip is ultimately provided. The second notch is formed parallel to or substantially parallel to the centerline of the cable 22 and is in-line with the first notch. The clamping assembly 34, 1034 remains engaged, but does not prevent this movement. Thereafter, in an embodiment, the notching saw 30 and the clamping assembly 34, 1034 are moved to a raised position such that the notching saw 30 and the clamping assembly 34, 1034 are disengaged from the cable 22. In some embodiments, the machine 20 is moved to the clamping position such that only the notching saw 30 is raised to disengage from the cable 22, but the clamping assembly 34, 1034 remains engaged with the cable 22. The cable 22 is then advanced a predetermined amount by the feed assembly 28 through the machine 20 toward the discharge end 26 of the machine 20 until a third predetermined location on the cable 22 is positioned to be acted upon the cutting assembly 66. If the clamping assembly 34, 1034 was moved to the raised position, the clamping assembly 34, 1034 is again moved to the clamping position. The cutting assembly 66 is then moved into the cable space 62 such that the cutting assembly 66 engages and cuts the cable 22 by cutting the cable 22 perpendicular to, or substantially perpendicular to, the centerline of the cable 22, thereby forming a whip. Thereafter, the cutting assembly 66 is moved to disengage the cutting assembly 66 from the cable 22 and to move out of the cable travel space 62, and in an embodiment, the notching saw 30 and the clamping assembly 34, 1034 are moved to a raised position such that the notching saw 30 and the clamping assembly 34, 1034 are disengaged from the cable 22. In some embodiments, the machine 20 is moved to the clamping position such that only the notching saw 30 is raised to disengage from the cable 22, but the clamping assembly 34, 1034 remains engaged with the cable 22. In some embodiments, the whip is pulled out of the discharge end 26 of the machine 20 by a user. Alternatively, in some embodiments, the whip may be automatically discharged out of the discharge end 26. The operations are then repeated to form subsequent whips. During operation, the clamping assembly 34, 1034 can be moved to a fully raised position, or may be moved to a slightly raised position in which the clamping assembly 34, 1034 is not fully raised.
In some embodiments, during the cutting or notching, the feed assembly 28 advances the cable 22 a predetermined amount toward the discharge end 26 of the machine 20 to elongate the first and second notches and to ensure that complete turn of the helical turn is cut by each notch.
The whip has the two notched ends at either end of the whip. The ends of the metal jacket of the whip can be easily pulled off of the whip to expose the plurality of wires therein. Thereafter, connectors are attached to the ends of the metal jacket in a known manner.
In some embodiments, operation of the machine 20 is affected by one or more control device(s) 600, see
Turning now to the specifics of the machine 20 of some example embodiments as shown in
An input 58 configured to feed cable 22 into the machine 20 is provided through the side wall 38 and has an output into the front compartment 52. An output 60 through which formed whips exit from the front compartment is provided through side wall 40. The input 58 defines the feed end 24 of the machine 20 and the output 60 defines the discharge end 26 of the machine 20. In some example embodiments, the input is an input tube 58′, which may, for example, extend outwardly from the side wall 38, through the side wall 38 and into the front compartment 52. The input tube 58′ has an input end 58a′ and an output end 58b′ which are linearly aligned. In some embodiments, the input 58 and the output 60 are aligned. In some example embodiments, the output 60 is an output tube 60′, which may, for example, extend outwardly from the side wall 40, through the side wall 40 and into the front compartment 52. The output tube 60′ of such embodiments has an input end 60a′ and an output end 60b′ which are linearly aligned. The tubes 58′, 60′ of such embodiments are aligned with each other. The input end 58a′ of the input tube 58′ may be enlarged to provide easier feeding of the cable 22 into the machine 20. The cable 22 travels linearly, or generally linearly, through the machine 20 from the input tube 58′ to the output tube 60′ along a cable travel space (shown by arrows 62 and the area surrounding the arrows 62) through the machine 20.
Turning now to the specifics of the machine 20 of some example embodiments as shown in
The internal components of the machine 20 are divided into the feed assembly 28 which is proximate to the output end of the input 58, the clamping assembly 34 which is proximate to the feed assembly 28, a notching saw assembly 64 which includes the notching saw 30 and which is proximate to the clamping assembly 34, and the cutting assembly 66 and which is proximate to the clamping assembly 34 and to the output 60. The input 58, the feed assembly 28, the clamping assembly 34, the notching saw assembly 64, the cutting assembly 66 and the output 60 are in-line with each other in some embodiments.
As shown in
The feed roller 68 has a motor shaft 76 which extends through the support wall 50 and between the support wall 50 and the front wall 48, and is proximate to the output end of the input 58. The motor shaft 76 is rotatably mounted to the front wall 48 by a bearing 78. The motor shaft 76 and the feed roller 68 are driven by the drive assembly 70, which in an embodiment may be a gearbox 77 and a motor 79, such as a servomotor or stepper motor, or any motor along with positional feedback. In an embodiment, the drive assembly 70 is mounted to the support wall 50 by shafts 80. In some embodiments, the feed roller 68 has a cylindrical body.
Attention is invited to the embodiment of the stamping 72 and its idler roller 74 shown in
The stamping 72 is formed of a pair of arms 84. Each arm 84 is generally L-shaped and has a first section 84a which is linear, and a second section 84b which extends at an angle relative to the first section 84a, for example at 45-degree relative to the first section 84a. The end of the first section 84a is fixedly mounted on a pivot shaft 86. In an embodiment, the pivot shaft 86 extends between the support wall 50 and the front wall 48 and is rotatable relative thereto. The idler roller 74 is rotatably mounted to the second sections 84b by a shaft 88, and in an embodiment the idler roller 74 is rotatably mounted at the ends of the second sections 84b.
The idler roller 74 may have a V-shaped groove 90 around its perimeter to aid in positioning the cable 22 in the cable travel space 62.
In some embodiments, a support plate 92 is fixedly mounted between the support wall 50 and the front wall 48 and extends underneath the first sections 84a of the stamping arms 84. The springs 82 extend between the support plate 92 and each second section 82b of the arms 84, such that a first end of each spring 82 is attached to the support plate 92 and the second end of each spring 82 is attached to the second end of each arm 84. The springs 82 bias the idler roller 74 upward and away from the feed roller 68 and into the cable travel space 62.
A block 94 may be fixedly mounted between the first sections 84a of the stamping arms 84. The block 94 of some embodiments has a pair of shafts 94a extending outwardly therefrom and which extend through the stamping arms 84. The block 94 of such embodiments has a passageway therethrough which extends from its top surface to its bottom surface.
In accordance with some embodiments, a threaded shaft 96 extends through the passageway, but the passageway is larger than the threaded shaft 96. The threaded shaft 96 has an enlarged knob 98 attached to its upper end.
In some embodiments, a spring clip 100 may be attached to the support plate 92. In some embodiments, the spring clip 100 is generally U-shaped with a U-shaped base 100a having an upper arm 100b extending from the base 100a, a lower arm 100c extending from the base 100a, and a threaded cylinder 102 extending downwardly from the lower arm 100c. The threaded cylinder 102 is permanently affixed to the lower arm 100c. The upper arm 100b engages the upper surface of the support plate 92 and the lower arm 100b engages the lower surface of the support plate 92. The threaded cylinder 102 extends below the support plate 92. The threaded shaft 96 extends through apertures in the upper and lower arms 100b, 100c and threadedly engages with the threaded cylinder 102.
In use, the user lifts the front wall section 42a to access the internal components of the machine 20 within the front compartment 52 and the user rotates the knob 98 to initially position the stamping 72 and its idler roller 74 into the correct position for the size of the cable 22. When the knob 98 is rotated, the threaded shaft 96 rotates relative to the clip 100 and the support plate 92 which causes the block 94 to linearly translate relative to the threaded shaft 96. This also causes the stamping 72 and its idler roller 74 to pivot toward or away from the feed roller 68 to decrease or enlarge the cable travel space 62. As an alternative in some embodiments, the spring clip 100 can be eliminated and the support plate 92 have a threaded aperture which engages with the threaded shaft 96. After the desired position is obtained, the front wall section 42a is closed.
When the cable 22 is fed through the feed assembly 28, the stamping 72 can pivot upwardly to accommodate the size of the cable 22, but applies sufficient pressure to the cable 22 via the biasing provided by the springs 82.
Attention is invited to the embodiment of the stamping 472 and its idler roller 74 shown in
The stamping 472 is formed of a pair of arms 484 connected together by a pin 469. Each arm 484 is generally L-shaped and has a first section 484a and a second section 484b which extend at an angle relative to each other, for example a 45-degree angle. In an embodiment, one or both of the arms 484 have an extension 484c extending from the second section 484b. The first section 484a has a slot 483 which divides the first section 484a into an upper portion 485a and a lower portion 485b.
In some embodiments and as illustrated, the pivot shaft 486 is mounted on a U-shaped bracket 479 which may be attached to a horizontal support wall 481 that extends between the support wall 50 and the front wall 48. In an embodiment, the support wall 50 is formed by the back wall 46 of the cabinet 36, 336 and brackets extend upwardly from the support wall 481 to support the components described as being supported by the support wall 50. The bracket 479 has an upper horizontal portion 479a from which legs 479b, 479c extend. The legs 479b, 479c are mounted on the support wall 481 by suitable means, such as fasteners. The pivot shaft 486 extends through the legs 479b, 479c and through the lower portion 485b of each arm 484. In an embodiment, the stamping 472 is rotatable relative to the pivot shaft 486. The stamping 472 is rotatable relative to the bracket 479. The upper portion 479a of the bracket 479 is seated within the slot 483, but the slot 483 is wider than the thickness of the upper portion 479a. The pin 469 is connected between the upper portions 485a of the arms 484 and is above the bracket 479. The pivot shaft 486 is attached to the lower portions 485b of the arms 484 and to the bracket 479, such that the pivot shaft 486 is below the bracket 479. Thus, the bracket 479 is fixed in place in the machine 20, but the stamping 472 is rotatable relative to the bracket 470.
The handle 475 has a gripping portion 487 and an eccentric cam surface 489 at an end thereof. The cam surface 489 engages with the side wall 338 of the cabinet 336 (not shown in
The feed roller 68 extends through an aperture 485 in the support wall 481.
The idler roller 74 is rotatable on the shaft 488 and rotatable relative to the arms 484. The idler roller 74 is mounted on the second sections 484b of the arms 484, and in an embodiment at the ends of the second sections 484b.
In use, the user rotates the handle 475 to initially position the stamping 484 and its idler roller 74 in an upward position, as shown in
To disengage from the cable 22, the handle 475 is rotated upwardly to the upward position as shown in
Since the handle 475 is outwardly from the cabinet 36, the idler roller 74 can be easily actuated.
The handle 475 may take a variety of forms. In some embodiments, the handle 475 is an elongated member which can be grasped as shown. In some embodiments, the handle 475 may be a knob that can pivot the eccentric cam surface 489 through its rotation.
While the stamping 72, 472 and the idler roller 74 are disclosed and shown herein in example embodiments, in an alternate embodiment the idler roller 74 applies sufficient pressure by biasing provided by a spring (not shown). The spring biasing can be sufficiently relieved to allow the idler roller 74 to pivot upwardly to accommodate the size of the cable 22 while the cable 22 is fed through the feed assembly 28. In addition, in some embodiments, the handle may be an actuator that automatically lifts the idler roller 74 responsive to a signal generated in response to input through the user interface 180. With this, the feed assembly 28 may be actuated entirely from outside the machine 20.
As shown in
As best shown in
The notching saw assembly 64 also includes a drive assembly 112 which in an embodiment is formed by a gearbox 114 and a motor 116, such as a servomotor or stepper motor, or any motor along with positional feedback. In an embodiment, the drive assembly 112 is mounted in the rear compartment 54. The gearbox 114 of some embodiments is affixed to and extends from the motor 116. In accordance with some embodiments, the gearbox 114 is also affixed to the support wall 50 by shafts 114a. One of the shafts 114a may extends through an elongated slot in the stamping 110. The gearbox 114 of the illustrated embodiment has a shaft 114b which is affixed to the stamping 110. Actuation of the drive assembly 112 results in rotation of the gearbox shaft 114b which causes the affixed stamping 110 to rotate around the axis of the shaft 114b, and which causes the motor 108, its motor shaft 106 and the notching saw 30 to move in an arc relative to the support wall 50. Since the aperture 104 in the support wall 50 is wider than the motor shaft 106, the motor shaft 106 can move in the arc. The motor 108, its motor shaft 106 and the notching saw 30 can be returned to their initial position, by reverse actuation of the drive assembly 112 to move the motor 108, its motor shaft 106 and the notching saw 30 in a reverse arc relative to the support wall 50.
The clamping assembly 34 of some embodiments includes a lower plate 118, an upper plate 120, a clamping pad support plate 122, a positioning block 124, a plurality of rods 126, a plurality of roll pins 128, a plurality of shoulder bolts 130, at least one spring 132, and a clamping pad 134. The motor shaft 106 of the notching saw 30 extends through the clamping pad support plate 122 and is moveable relative to the clamping pad support plate 122 as discussed herein. The motor shaft 106 is perpendicular to the line formed by cable travel space 62 such that the notching saw 30 is parallel to the line forming the cable travel space 62 and is capable of forming the first and second notches in the cable 22.
The lower plate 118 is planar and is fixedly mounted between the support wall 50 and the front wall 48. The upper plate 120 is planar and is fixedly mounted to the support wall 50 and cantilevered therefrom. The upper plate 120 is mounted at a spaced position above the lower plate 118. The upper plate 120 could also extend between and be affixed to the support wall 50 and the front wall 48.
The positioning block 124 is mounted on the upper surface of the lower plate 118. As best shown in
Rods 126 may be mounted on the positioning block 124 and extend upwardly therefrom. The rods 126 of such embodiments are affixed to the positioning block 124 such that the rods 126 do not move relative to the positioning block 124. As shown in the illustrated embodiment, two rods 126 are mounted on the positioning block 124. One or more of the rods 126 may have a spring 132 mounted thereon.
The clamping pad support plate 122 of some embodiments is mounted between the lower and upper plates 118, 120 by the rolls pins 128. A first pair of roll pins 128 extend between the lower plate 118 and the clamping pad support plate 122, and a second pair of roll pins 128 extend between the upper plate 120 and the clamping pad support plate 122. As best shown in
When the cable 22 is first fed into the clamping assembly 34 which is in the raised position, the cable 22 engages with the angled second wall 152 of the clamping pad 134 and the chamfered first wall 136a of the positioning block 124 to direct the entry of the cable 22 into the cable travel space 62 between the clamping pad 134 and the positioning block 124. In addition, as the cable 22 is being fed through the machine 20, the angled second wall 152 of the clamping pad 134 and the chamfered first wall 136a of the positioning block 124 do not catch on the helical turns of the cable 22, thereby promoting the movement of the cable 22 through the machine 20.
The upper wall 140 of some embodiments has an opening 146 therethrough, through which the notching saw 30 may partially extend when the clamping assembly 34 when in a raised position. The opening 146 provides a clearance space for the notching saw 30.
In accordance with some embodiments, the lower wall 142 has an aperture 148 therethrough, through which the motor shaft 106 of the notching saw 30 extends, see
As best shown in
In accordance with various embodiments, the clamping pad 134 is positioned proximate to, but spaced from, the lower end of the lower wall 142 of the clamping pad support plate 122. The clamping pad 134 may be connected to the upper plate 120, such as by the rods 126 and shoulder bolts 130.
In some embodiments, the rods 126 are fixed to the positioning block 124 and extend upwardly therefrom, through the clamping pad 134 and through the upper wall 140 of the clamping pad support plate 122. The clamping pad 134 and the clamping pad support plate 122 of such embodiments are slidable on the rods 126. In some embodiments, some or all of the rods 126 have a spring 132 mounted thereon. The springs 132 in such embodiments may extend between the bottom surface of the upper wall 140 of the clamping pad support plate 122 and the upper surface of the first wall 150 of the clamping pad 134. In some embodiments, the springs 132 are expansion springs which bias the clamping pad 134 downwardly toward or into the cable travel space 62.
In some embodiments, the shoulder bolts 130 extend between and through the clamping pad 134 and the upper wall 140 of the clamping pad support plate 122. In some embodiments, the shoulder bolt 130 has a shaft 156a, a head 156b at a lower end of each shaft 156a and a threaded end onto which a nut 157 is mounted. In such embodiments, the head 156a is capable of engaging against the lower surface of the first wall 150 of the clamping pad 134. The nut 157 is threaded to the threaded end of the shaft 156a and engages against the upper surface of the upper wall 140. In this embodiment, this secures the shoulder bolts 130 to the upper wall 140 of the clamping pad support plate 122, but allows the clamping pad 134 to slide along the shoulder bolts 130. In some embodiments, some or all of the shoulder bolts 130 have a spring 132 mounted thereon. The springs 132 extend between the bottom surface of the upper wall 140 of the clamping pad support plate 122 and the upper surface of the first wall 150 of the clamping pad 134. In some embodiments, the springs 132 are expansion springs which biases the clamping pad 134 downwardly. The shoulder bolts 130 orient the clamping pad 134 and provide a limit to the movement of the springs 132 in some embodiments.
In the illustrated embodiment, the clamping assembly 34 and notching saw 30 are positionable in three different positions, namely a raised position, a clamping position, and a notching position. An example of the raised position is shown in
As shown in shown in the raised position in
In the illustrated embodiment, in use, the cable 22 is fed into the cable travel space 62 between the clamping pad 134 and the positioning block 124 when the machine 20 is in a raised position by activation of the motor 79 which rotates the feed roller 68 of the feed assembly 28. The cable 22 rests in the groove 136 on the positioning block 124. Thereafter, the clamping assembly 34 and the notching saw 30 can be moved to the clamping position or to the notching position.
As shown in the clamping position in
As shown in the notching position in
To move the machine 20 from the raised position to the clamping position, the drive assembly 112 is engaged to rotate the stamping 110 and the motor 108. This causes the motor shaft 106 to move along the arc in the elongated aperture 104 in the support wall 50 and in the enlarged aperture 148 in the lower wall 142 of the clamping pad support plate 122. As the motor shaft 106 moves in the arc, the clamping pad support plate 122, the roll pins 128 and its attached clamping pad 134 move downwardly when the motor shaft 106 engages the bottom of the aperture 148. The roll pins 128 slide relative to the upper and lower plates 118, 120. The clamping pad support plate 122, the roll pins 128 and the clamping pad 134 slide along rods 126. When the motor shaft 106 is moved downwardly far enough into the clamping position, the clamping pad 134 moves into the cable travel space 62 and engages the top surface of the cable 22. The springs 132 bias the clamping pad 134 into engagement with the cable 22 and further into the cable travel space 62 to clamp the cable 22.
To move the machine 20 from the clamping position to the notching position, the drive assembly 112 is engaged to further rotate the stamping 110 and the motor 108. This causes the motor shaft 106 to move further along the arc in the elongated aperture 104 in the support wall 50 and in the enlarged aperture 148 in the lower wall 142 of the clamping pad support plate 122 to move the clamping pad support plate 122 and the notching saw 30. The clamping pad 134 maintains its clamping position by sliding along the shoulder bolts 130. The springs 132 continue to bias the clamping pad 134 into the clamping position. The notching saw 30 extends through the slot 154 in the first wall 150 in the clamping pad support plate 122 to engage the cable 22. In this notching position, the clamping pad support plate 122 and the attached clamping pad 134 are in the same position relative to the positioning block 124 as when in the clamping position such that the clamping pad 134 engages the upper surface of the cable 22. Thus, in the notching position, the cable 22 is also clamped by the clamping assembly 34.
To move the machine 20 from the notching position to the clamping position, the drive assembly 112 is engaged to rotate the stamping 110 and the motor 108. This causes the motor shaft 106 to move along the opposite arc in the elongated aperture 104 in the support wall 50 and in the enlarged aperture 148 in the lower wall 142 of the clamping pad support plate 122. The notching saw 30 exits the slot 154 in the first wall 150 in the clamping pad support plate 122.
To move the machine 20 from the clamping position to a raised position, the drive assembly 112 is engaged to further rotate the stamping 110 and the motor 108. This causes the motor shaft 106 to move further along the opposite arc in the elongated aperture 104 in the support wall 50 and in the enlarged aperture 148 in the lower wall 142 of the clamping pad support plate 122. When the motor shaft 106 is moved far enough to contact the upper end of the enlarged aperture 148 in the lower wall 142 of the clamping pad support plate 122, the further movement of the motor shaft 106 causes the clamping assembly 34 to move upwardly. The motor shaft 106 bears against the upper end of the enlarged aperture 148 in the lower wall 142 of the clamping pad support plate 122, which causes the clamping pad support plate 122 and its attached clamping pad 134 to move upwardly. The roll pins 128 slide relative to the upper and lower plates 118, 120. The clamping pad support plate 122, the roll pins 128 and the clamping pad 134 slide along rods 126. When the clamping pad 134 is lifted away from the cable 22, the springs 132 expand to their natural state. The clamping assembly 34 is lifted to the extent such that the clamping pad 134 is no longer in contact with the cable 22 or interferes with the cable travel space 62.
If the machine 20 is being moved to the notching position, the motor 108 may be activated to rotate the notching saw 30 at the time when the movement from a raised position. Alternatively, in some embodiments, the motor 108 may be activated to rotate the notching saw 30 when the machine 20 reaches the clamping position. In a raised position, the notching saw 30 is not rotated.
In an embodiment as shown in
The clamping assembly 1034 is mounted within the cabinet 36, 336 and is proximate to the feed assembly 28. The notching saw assembly 64, which includes the notching saw 30, is proximate to the clamping assembly 1034. The cutting assembly 66 is proximate to the clamping assembly 1034 and to the output 60. The input 58, the feed assembly 28, the clamping assembly 1034, the notching saw assembly 64, the cutting assembly 66, the shelf 1172, and the output 60 are in-line with each other in some embodiments.
The notching saw assembly 64 also includes the drive assembly 112 which in an embodiment is formed by the gearbox 114 and the motor 116, such as a servomotor or stepper motor, or any motor along with positional feedback. In an embodiment, the drive assembly 112 is mounted by a bracket 113 on the support wall 550. The gearbox 114 of the illustrated embodiment has a shaft 114b which is affixed to the stamping 110. As shown in FIG. The stamping 110 in this embodiment has been modified to include a bridge plate 110a which extends from the stamping 110 and a second stamping 110b which is cantilevered from the bridge plate 110a. The stamping 110b extends downwardly from the bridge plate 110a. An aperture 110c is provided through the stamping 110b through which the motor shaft 106 of the motor 108 extends.
The clamping assembly 1034 of some embodiments includes a positioning block 2124, a shaft 1126 extending outwardly from the stamping 110b, a clamping pad support plate 1128 rotatably mounted on the shaft 1126, a spring 1130 mounted on the shaft 1126 between the stamping 110b and clamping pad support plate 1128, a clamping pad 1134 mounted on the clamping pad support plate 1128. The shaft 1126 is affixed to the stamping 110b such that the shaft 1126 rotates with the stamping 110b as described herein.
The clamping pad support plate 1128, see
The spring 1130 includes a coiled section 1130a which wraps around the shaft 1126, a first arm 1130b extending from the coiled section 1130a and which engages with the hook end 1142 on the finger 1140 of the clamping pad support plate 1128, and a second arm 1130c extending from the coiled section 1130a and which engages with a protrusion 1131, see
As best shown in
The clamping pad 1134 further includes a first side wall 1156 extending downwardly from a side edge of the first wall 1150 which extends between the feed end 1152a and the discharge end 1150b, and a second side wall 1158 extending downwardly from the opposite side edge of the first wall 1150 which extends between the feed end 1152a and the discharge end 1150b. The side walls 1156, 1158 extend vertically. In an embodiment, the first and second walls 1150, 1152 are at an angle relative to the vertical. As an example, the first and second walls 1150, 1152 are angled at 45 degrees relative to the vertical. The first and second walls 1150, 1152 may also be horizontal.
The first side wall 1156 has a length which is defined between a feed end 1156a of the first side wall 1156 and a discharge end 1156a of the first side wall 1156. The first side wall 1156 has a first elongated slot 1160 which extends vertically upwardly from a bottom edge of the first side wall 1156 and a second elongated slot 1162 which extends vertically downwardly from a top edge of the first side wall 1156. The slots 1160, 1162 divide the first side wall 1156 into a front portion 1164a, an intermediate portion 1164b and a rear portion 1164c; the intermediate portion 1164b being between the slots 1160, 1162. In an embodiment, the first slot 1160 is proximate to, but spaced from the feed end 1156a. The second slot 1162 is proximate to, but spaced from the discharge end 1156b.
The second side wall 1158 has a length which is defined between a feed end 1158a of the second side wall 1158 and a discharge end 1158a of the second side wall 1158. The second side wall 1158 has an elongated slot 1166 which extends vertically upwardly from a bottom edge of the second side wall 1158. The slot 1166 divides the second side wall 1156 into a front portion 1168a and a rear portion 1168b. In an embodiment, the slot 1166 is proximate to, but spaced from the feed end 1156a. The slot 1162 is proximate to, but spaced from the discharge end 1156b. In an embodiment, the slots 1160, 1166 are aligned with each other.
The length of the first side wall 1156 is greater than the length of the second side wall 1158 such that the second slot 1162 and the rear portion 1164c are downstream of the discharge end 1158a of the second side wall 1158.
The walls 1150, 1152, 1156, 1158 define a cavity 1170 through which the cable 22 extends during use as described herein.
The shelf 1172 is attached to the rear portion 1164c of the first side wall 1156 and extends outwardly towards the second side wall 1158 and downwardly toward the lower edge of the first side wall 1156. The shelf 1172 overlaps into the cavity 1170. The shelf 1172 has a feed end 1172a and a discharge end 1172b. The shelf 1172 is angled relative to the horizontal such that the feed end 1172a is spaced a greater distance from the lower edge of the first side wall 1156 than the discharge end 1172a.
As shown in
As best shown in
In the illustrated embodiment, as discussed herein, the clamping assembly 1034 and notching saw 30 are positionable in four different positions, namely the raised position, the clamping position, a back-tensioning position, and the notching position. An example of the raised position is shown in
When in the raised position as shown in
Actuation of the drive assembly 112 results in rotation of the gearbox shaft 114b which causes the affixed stamping 110 and shaft 1126 to rotate around the axis of the shaft 114b, and which causes the motor 108, its motor shaft 106 and the notching saw 30 to move in an arc. As the stamping 110 and shaft 1126 rotate, the clamping pad support plate 1128 moves in an arc which causes the clamping pad 1134 to move vertically downwardly through the support wall 550. The clamping pad support plate 1128 rotates relative to the clamping pad 1134 during this movement. When the first wall 1150 of the clamping pad 1134 engages with the cable 22 within the cavity 1170, the clamping assembly 1034 is in the clamping position as shown in
Further actuation of the drive assembly 112 results in rotation of the gearbox shaft 114b which causes the affixed stamping 110 and shaft 1126 to rotate around the axis of the shaft 114b, and which causes the motor 108, its motor shaft 106 and the notching saw 30 to continue to move in the arc. As the stamping 110 and shaft 1126 further rotate, the clamping pad support plate 1128 no longer moves in the arc and instead rotates around fastener 1144 and continues to move vertically until the discharge end 1172b of the shelf 1172 engages with a turn of the cable 22 and the clamping assembly 1034 is the back-tensioning position as shown in
Even further actuation of the drive assembly 112 results in rotation of the gearbox shaft 114b which causes the affixed stamping 110 and shaft 1126 to rotate around the axis of the shaft 114b, and which causes the motor 108, its motor shaft 106 and the notching saw 30 to continue to move in the arc. As the stamping 110 and shaft 1126 further rotate, the clamping pad support plate 1128 no longer moves in the arc and instead rotates around fastener 1144 such that the position of the clamping pad 1134 is maintained. The notching saw 30 passes through the slot 1154 of the clamping pad 1134 to engage with the jacket of the cable 22 and place the machine 20 into the notching position. As shown in the notching position in
Thereafter, to move the cable 22 toward the output 60, the clamping assembly 1034 is returned to the raised position in some embodiments or to the clamping position in some embodiments.
The clamping assembly 1034 can be returned to the raised position from the clamping or back-tensioning positions, or the clamping assembly 1034 can be returned to the clamping position from the back-tensioning position, by reverse actuation of the drive assembly 112 to move the motor 108, its motor shaft 106, the notching saw 30, the stamping 110, the shaft 1126 and the clamping pad support plate 1128 in a reverse arc and which causes the clamping pad 1134 to move vertically upwardly relative to the support wall 550. When the components are moved in the reverse arc, the clamping pad 1134 is initially pulled upwardly relative to the support wall 550 by the coiled section 1130a of the spring 1130 re-winding around the shaft 1126 which pivots the clamping pad support plate 1128, and the clamping pad 1134 is further moved vertically upwardly by the clamping pad support plate 1128 as it moves in the reverse arc.
In an embodiment, a spring 1180 is attached to the stamping 110 and to the support wall 550 to further bias the stamping 110 towards the initial position.
While the notching saw 30, its motor 108 and motor shaft 106 are shown as being above the clamping pad 1134 and moving with the stamping 110, the notching saw 30, its motor 108 and motor shaft 106 can be provided separate from the stamping 110 and below the positioning block 2124. The notching saw 30, its motor 108 and motor shaft 106 are supported by a lifting assembly (not shown) which raises the notching saw 30 through a slot (not shown) in the positioning block 2124 into the notching position and lowering the notching saw 30 through the slot in the positioning block 2124 when the machine 20 is moved to the raised or clamping positions.
The drawings show example embodiments of cutting assemblies 66, each of which has a cutting tool having a cutting edge or edges. As used herein with regard to the cutting assembly 66, the term “cut” or “cutting” means that at least the conductors within the cable 22 are severed in half, a length of the cable 22 is cut off, a length of the cable 22 is cut through to form halves, the cable 22 is sheared in half, the cable 22 is guillotined cut into halves, and the like. This cutting action by the cutting assembly 66 is not limited to the specific embodiments shown herein as there are a variety of structures suitable for cutting the cable 22.
In an embodiment, the cutting assembly 66 includes a cutting tool in the form of a saw blade 32 having a cutting edge which cuts the cable 22 into the individual whips. The saw 32 is driven by a motor shaft 158 of a motor 160 which form part of the cutting assembly 66. The cutting assembly 66 further includes a stamping 162 to which the motor 160 is fixedly mounted and cantilevered from. In an embodiment as shown for example in
The cutting assembly 66 also includes a drive assembly 164, which in an embodiment is formed by a gearbox 166 and a motor 168, such as a servomotor or stepper motor, or any motor along with positional feedback. In an embodiment, the motor 168 is affixed to the support wall 50 or to the side wall 40. The gearbox 166 of some embodiments is affixed to and extends from the motor 168. In accordance with some embodiments, the gearbox 166 is affixed to the stamping 162. Rotation of the gearbox 166 by the motor 168 causes the stamping 162 to rotate, which causes the motor 160, its motor shaft 158 and the saw 32 to move in an arc relative to the support wall 50.
In an embodiment, the cutting assembly 66 is an electrohydraulic device having a cutting tool in the form of cutting inserts 232, each cutting insert 232 having a cutting edge, the cutting inserts 232 shearing the cable 22 into the individual whips. Such electrohydraulic device is shown for example in
The cutting assembly 66 may take other forms that those shown in the illustrated embodiments. As an example, the cutting assembly 66 may have a guillotine blade that cuts the cable 22.
The cutting assembly 66 can be withdrawn from the cable travel space 62 and can pass into the cable travel space 62. When the cutting assembly 66 passes into the cable travel space 62, the cable 22 is cut into a whip. During the cutting by the cutting assembly 66, the machine 20 is in the back-tensioning position to deter movement of the cable 22 relative to the positioning block 124. In some embodiments, the motor 108 rotating the notching saw 30 is not activated during movement of the cutting assembly 66.
While the cutting assembly 66 is shown and described as being actuated from above the cable 22, the machine 20 can be designed such that the cutting assembly 66 is actuated from below the cable 22.
In embodiments where the shelf 1172 is provided, when the cutting assembly 66 is moved into the cable travel space 62, the cutting device 32, 232 moves into the slot 1162 of the shelf 1172.
While the shelf 1172 has been described as being formed as part of the clamping pad 1134, the shelf 1172 can be independent of the clamping pad 1134 such that the shelf 1172 is moved independently of the clamping pad 1134. In such an embodiment, the shelf 1172 would have a driving mechanism configured to raise and lower the shelf 1172.
In some embodiments, operation of the machine 20 is affected by one or more control device(s) 600, see
In some example embodiments, the control device 600 may be configured to provide the user interface 180 to display and/or enter the data used to form the whips. The user interface 180 may include a display with a touchscreen 186 for a user to interact with control buttons and/or a keypad of the user interface 180, and/or to view and enter cutting information and other data into the machine 20 to form the whips, as described in more detail below. Other types of possible user interfaces 180 include but are not limited to a physical keyboard, mouse, trackball, switches, physical buttons, etc. The control device 600 can also include a non-transitory memory 602, a processor 604 configured to process the inputted data used for accurately forming the whips, and interface(s) 606 to be used for wireless and/or wired connections to the control device 600. The interface(s) 606 can operably connect the machine 20 to external wireless and wired devices 608, 610 to receive data from wireless or wired devices 608, 610 to be used when forming the whips. The received data can be stored in memory 602. While illustrated as a single memory 602, it will be appreciated that in some example embodiments, the memory 602 may include multiple individual memory devices collectively providing functionality of the memory 602, which may be distributed across one or more computing devices that may provide functionality of the control device 600. In some example embodiments, the memory 602 may include non-transitory memory. The memory 602 can store the inputted cutting information and other data, and also store instructions (e.g., compiled executable program instructions, uncompiled program code, some combination thereof, or the like), which when performed (e.g., executed, translated, interpreted, and/or the like) by the processor 604, causes the processor 604 to perform the processes described herein. For example, when the instructions are executed by the processor 604, the processor can use the data to fabricate the whip, e.g., as described in
An example processor 604 includes, but is not limited to, a programmable logic controller (PLC) manufactured by Homer APG, LLC, model number XL7 (HE-XW1E2). The interface(s) 606 can include one or more wired and wireless interfaces. Wired interfaces can include connectors and/or ports to connect with one or more of controller area network (CAN) bus, universal serial bus (USB), USB mini, FireWire, Thunderbolt, Lightning, memory cards, Ethernet (RJ-45 connector), modular jack (MJ), input and output (I/O), other serial communications ports, other parallel communications ports, and/or other wired interfaces that may be used to operably connect the machine 20 with wired input devices, etc. Wired devices 608 can include one of more of computers, smartphones, USB memory sticks, memory cards, sensors, etc. Wireless interfaces can include, but are not limited to, one or more of BLUETOOTH™, IEEE 802.11 Wi-Fi communications, satellite, cellular communications, Zigbee, etc., and/or other wireless interfaces that may be used to operably connect the machine 20 to wireless input devices. Wireless devices 610 include one or more computers, smartphones, tablets, etc.
In some embodiments, the control device 600 is in communication with the motor 79 and is configured to control and monitor the motor 79 which drives the feed roller 68. Accordingly, the control device 600 may be configured to control rotation of the feed roller 68. In some embodiments, the control device 600 is in communication with the motor 108 and is configured to control and monitor the motor 108. Accordingly, the control device 600 may be configured to control rotation of the notching saw 30. In some embodiments, the control device 600 is in communication with the motor 116 and is configured to control and monitor the motor 116. Accordingly, the control device 600 may be configured to control movement of the notching saw 30. In some embodiments, the control device 600 is in communication with the motor 160 and is configured to control and monitor the motor 160. Accordingly, the control device 600 may be configured to control actuation of the cutting device 32. In some embodiments, the control device 600 is in communication with the motor 168 and is configured to control and monitor the motor 168. Accordingly, the control device 600 may be configured to control movement of the cutting device 32. In some embodiments, the motors 116 and 168 include interfaces, such as CAN bus interfaces configured to receive control signals from the control device 600. Other types of communication interfaces can be used to send control signals to the motors 116 and 168. In some embodiments, the control device 600 is in communication with the motor 238 configured to control and monitor the motor 238. Accordingly, the control device 600 may be configured to control actuation of the cutting device 232.
In some embodiments, the machine 20 allows for the fabrication of whips based upon received data, such as may be inputted by a user (e.g., via user interface 180) and/or received from an external computing device (e.g., from a wireless device 608 or wired device 610) that may interface with the machine 20 (e.g., via interface(s) 606). The data used to form the whips can include various types of information including one or more of the cable manufacturer, the cable armor (aluminum or steel jacket), the cable type, the notch depth and the notch length, see
The control device 600 can control and monitor the motors 79, 108, 116, 160, 168 based on data that is inputted to the control device 600 by the user. Additionally, or alternatively, in some embodiments, the machine 20 allows for the fabrication of whips based upon data that is automatically extracted from architectural drawing models using an application, e.g., including but not limited to AUTODESK REVIT, BENTLY. The control device 600 can control and monitor the motors 79, 108, 116, 160, 168 based on data that is inputted to the control device 600 from the application. Additionally, or alternatively, in some embodiments, the machine 20 allows for the fabrication of whips based upon information inputted from a spreadsheet(s), for example as shown in spreadsheets illustrated in
Architectural drawing models used in some embodiments for inputting cutting information and other data to the machine 20 to control the machine 20 include but are not limited to building information modeling (BIM) drawings. The BIM drawings may be produced by software used by architects, structural engineers, mechanical, electrical and plumbing (MEP) engineers, designers and contractors, etc. Example types of BIM software include AUTODESK REVIT, BENTLY and other BIM applications. The applications, and any of the software described herein, may be implemented by hardware, software or firmware, or a combination thereof, and may be stored locally to the machine 20, embodied in the form of a portable computer-readable medium and code, embodied on one or more external computing devices and/or distributed over a network, etc. In embodiments in which the machine 20 allows for the fabrication of whips based on data that is automatically extracted from the architectural drawing models using the application, the application may, for example, be implemented as a plug-in application. The control device 600 controls and monitors the motors 79, 108, 116, 160, 168 based on data that is inputted to the control device 600, e.g., the data that the application automatically determined from architectural drawings for controlling the machine 20 to form the whip.
Referring now to
With regard to operations (716) and (718), the length of the notch can be adjusted to be longer as shown by column in
In an embodiment, the back-tensioning is not performed.
The application may be stored as code in a memory, such as memory 602, and executed by a processor, such as processor 604, on a computer having the architectural software. In this example embodiment, application processes architectural drawings to determine data from the drawings needed by the machine 20 to form whips. The application may be loaded onto the machine 20 for executing with the architectural BIM drawing tool, e.g., AUTODESK REVIT, BENTLEY, etc. or may be stored separately, e.g., in the cloud, on an external computing device that may communicate with machine 20, such as a wireless device 608 and/or wire device 610, and/or may otherwise be stored on and/or executed by one or more computing devices external to machine 20. For existing drawings (800), the drawing project is opened in the BIM software (802) and a standard or set of standards for the whips (generally referred to as standards) are imported from the application (804). The application converts existing whips in the drawings to match the standards (806), e.g., by replacing the lengths of the existing whips to match the standards. The data determined by the application for the whip length (see, e.g.,
After the whips are drawn or converted to the desired standard, any whips that are missing are added to the drawings based on the standard (812). The runs include, for example, the number of whips, the length of the whips, etc. The standards help ensure that the whips are formed as accurately as possible using the BIM software.
The user may then initiate a “Whip Check and Export Tool” of the application for single or multiple selected whips to be examined (820). The application determines whether there are any errors, e.g., whether the whips meet the specifications for the standards that may be imported to the drawing application (822). The application may output a table or other data structure that lists the name of the whip and other characteristics of the whip, whether there were errors, the type of errors, etc. The output data structure may, for example, be formatted as a spreadsheet interpretable by a spreadsheet application, such as by way of non-limiting example, EXCEL by MICROSOFT, as a list of comma separated values (CSV), and/or other data structure capable of organizing the output data in a manner that may be interpreted by a computer application and/or by a human operator. The application may select the whips with errors (824) and changes are made to correct the error being reported (826). After the modifications are made to the drawing, the “Whip Check and Export Tool” of the application may be re-executed and the outputted table re-checked for errors (820).
After any errors are corrected, the application checks for any detail changes (828). The whips with details to be changed are selected (830) and the details of the whips are changed based on the desired result (832). The “Whip Check and Export Tool” of the application is re-executed and the outputted table re-checked for errors (820).
The application may include a settings menu such as for setting details about the whip including length of the whip in some embodiments. In some embodiments, the user may set desired whip details and data export location in the settings menu (834). The data determined by the application based on the architectural drawings may be exported in files (836). One example file is a comma separated values (CSV), but other file formats may be used. The files may be transferred to on-board storage (838) (e.g., a hard drive, flash memory, and/or other on-board storage) of the control device 600 executing the application and/or external memory, such as a universal serial bus (USB) flash memory device (840) that may be inserted into the machine 20. Additionally, or alternatively, in some embodiments the data may be sent over a wireless and/or wired communications network, e.g., to a memory location accessible by the machine 20 (842). Additionally, or alternatively, in some embodiments the data may be transferred by a wired or wireless capable device 608, 610, e.g., a computer, a tablet, a smartphone, etc. (844). Additionally, or alternatively, in some embodiments the data may be transferred via a cloud memory storage, etc. The USB device may be inserted in a USB slot of the interface(s) 606 (846). Additionally, or alternatively, in some embodiments the wired or wireless capable device 608, 610 may connect with the machine 20 to communicate the data files via a wired, wireless or hybrid communication to the control device 600 of the machine 20 (848). Wired technologies include but are not limited to telephone networks, cable networks, fiber-optic communications, the Ethernet, etc. Wireless technologies include but are not limited to Wi-Fi, BLUETOOTH, ZigBee, Z-wave, WirelessUSB, WirelessHD, Wireless HART, UWB, Wireless Regional Area Network (WRAN), near field communication (NFC), ISA100a, Radio Frequency Identification (RFID), Infrared (IR), ISM Band, Institute of Electrical and Electronics Engineers (IEEE) 802.15.4, ANT+, 6LoWPAN, Ultra Wideband, satellite networks, cellular networks, etc.
The BIM drawing includes whip runs. Using the application each whip run may be broken down to standard sized whips. A selected whip is a user or application selected whip. The selected whip includes an identified start point and endpoint. The application also allows for selection of properties of the selected whip.
A comma separated value (CSV) output file may be generated which includes data as determined by the application. The output file may be outputted to a spreadsheet application, such as MICROSOFT EXCEL, or other application. The output file shows the version of the file format 1102 and units 1104, e.g., English or Metric. The output file (e.g., an EXCEL file) and/or an application that may be used to read or otherwise access the output file may include a macro application to convert the output data to a format or visual picture that a user may read to form the whips. As described above, the application determines the data from architectural drawings and outputs the data as output files, such as comma separated value (CSV) files, to be used by the machine 20 to form whips. This may provide accuracy and save a lot of time and money over currently known methods.
In an example embodiment, the control device 600 of the machine 20 allows the user to set a location of the whip file or files storage so that the machine 20 may find the files to use data determined from the application for forming the whips (850). For example, the control device 600 allows the user to identify a network location of the data file or files. If multiple files are stored at the location, the machine 20 may obtain and work through all the files one-by-one. For example, the machine 20 may work through a series of files corresponding to the whips to be used for a particular job construction site or subsection of the job site. When an autoloader is used together with the machine 20, all of the length(s) of cable 22 may be loaded into the autoloader and the machine 20 may receive the length(s) of cable 22 one-by-one from the autoloader to form the whips based on the data in the files, without the need for each length of cable 22 to be individually loaded into the machine 20 by a user. All or some of the length(s) of cable 22 may be loaded into the autoloader at the same time. When the autoloader runs out of length(s) of cable 22, more length(s) of cable 22 may be loaded into the autoloader. In some example embodiments, regardless of whether the length(s) of cable 22 are individually loaded or batch loaded, the control device 600 may prompt the user regarding what type of cable 22 to load in the machine 20, when to place the length(s) of cable 22 in the machine 20, and when the formation of the whip is completed and the whip is ready to be removed from the machine 20.
The control device 600 determines if the files containing the data for creating the whips are for a batch or single load (852). For single files, the control device 600 loads the data from the file to the machine 20 (854). The proper whip size and type is loaded into the machine 20 (856). The machine 20 forms the whip based on the data provided by the application (858). The processor 604 of the control device 600 executes the programs stored in memory 602 with the data to form the whips.
After the whip has been formed, the whip exits the machine 20 and is removed from or output from the machine 20 (860). The machine 20 is then ready to form another whip. The control device 600 determines if all the files for forming the whips have been completed (862). If not, data from a next file to be completed is loaded to the machine 20 (854).
If the files are being processed as a batch of files, then the lengths of whips for those files are loaded into the machine 20. The loaded whips are formed based on the data in the batch of files (864). For example, all or a portion of the whips for a job site are loaded at once to an auto-loader. The control device 600 may point to a directory containing the batch of files, either stored locally in memory 602 of the control device 600 and/or stored remotely. The machine 20 is activated to form the whips based on the data in the files (866). After the whips are formed based on the batch of files, the machine 20 may determine if there are any more files remaining to be processed (870). A flag may be set in the file once it is processed so that the machine 20 may determine which files, if any, remain to be processed.
As shown in
As shown in
In the embodiment in which the machine 20 allows for the fabrication of whips based upon information from a spreadsheet, see
In the embodiment in which the machine 20 allows for the fabrication of whips based upon saved files which are in the memory 602 of the control device 600, information is programmed into the memory 602 as stored files. The user can touch the user interface 180 to access the saved files under the ‘favorites’ button. A plurality of stored files which relate to different whip lengths may be programmed into the memory 602 and will be displayed upon the touching of the ‘favorites’ button. The user can call up a desired whip or several desired whips. The control device 600 may be programmed to allow the user to enter an individual stored whip file to form a particular whip, or to enter a batch of whip files to form a plurality of whips which may have different specifications. When the user calls up a desired whip or whips, the machine 20 forms the whip or whips under the control of the control device 600.
In the embodiment in which the machine 20 allows for the fabrication of whips based upon inputted dimensions for a particular whip, the user enters in the necessary data, for example the whip length, the lead length, the tail length and the number of whips, via the user interface 180 for example by touching the ‘setup’ button.
Additional or alternative, to Bluetooth, wireless communication in some embodiments includes but is not limited to near field communication (NFC), Wi-Fi, ZigBee, Z-wave, WirelessUSB, WirelessHD, Wireless HART, UWB, Wireless Regional Area Network (WRAN), ISA100a, Radio Frequency Identification (RFID), Infrared (IR), ISM Band, Institute of Electrical and Electronics Engineers (IEEE) 1802.15.4, ANT+, 6LoWPAN, Ultra-Wideband, satellite networks, cellular networks, etc. Additionally, or alternatively, in some embodiments the communication device can connect to the machine 20 via a wired technology including but not limited to telephone networks, cable networks, fiber-optic communications, the Ethernet, etc. In one example, the communication device connects with the machine 20 via a communication port.
In each embodiment, the notch depth can be selected based on predefined parameters, such as user stored settings. A look-up table with pre-set notch depths based on manufacturer and/or cable type can be stored in the memory 602 and used by the processor 604 during the operation. The presets may be scaled/adjusted based on saw wear.
In some embodiments, a sensor may be mounted on the machine 20, for example on one of the arms 84, by suitable means, and is configured to sense the presence, and/or size, of the cable 22 under the feed roller 68. The sensor is in communication with the control device 600 and can be embodied as any of a variety of sensors capable of detecting presence and/or proximity and/or size of the cable 22, such as by way of non-limiting example, a laser sensor, a photoelectric sensor or a proximity sensor. The sensor senses whether the cable 22 is present and communicates this information to the control device 600.
In some embodiments, a sensor may be mounted on the clamping assembly 34 to monitor the amount of force of the clamping assembly 34 when the clamping assembly 34 is moved to the various positions, namely the raised position, the clamping position, and the notching position. Such a sensor may be mounted on the stamping 110. The sensor is in communication with the control device 600 and can be embodied as any of a variety of sensors capable of detecting force, such as by way of non-limiting example, a force pin, a pressure pad sensor or a bolt sensor. The sensor senses force of the clamping assembly 34 on the cable and communicates this information to the control device 600.
In some embodiments, a sensor may be mounted on the notching saw assembly 64 to monitor the amount of travel of the notching saw 30 when the notching saw 30 is moved to the various positions, namely the raised position, the clamping position and the notching position. Such a sensor may be mounted on the stamping 110. The sensor is in communication with the control device 600 and can be embodied as any of a variety of sensors capable of detecting travel, such as by way of non-limiting example, a laser sensor, a photoelectric sensor or a proximity sensor. The sensor senses the travel distance of the notching saw 30 and communicates this information to the control device 600.
In some embodiments, a sensor may be mounted on the cutting assembly 66 to monitor the amount of travel of the cutting device 32 when the cutting device 32 cuts the cable 22 into a whip. Such a sensor may be mounted on the stamping 162. The sensor is in communication with the control device 600 and can be embodied as any of a variety of sensors capable of detecting travel, such as by way of non-limiting example, a laser sensor, a photoelectric sensor or a proximity sensor. The sensor senses the travel distance of the cutting device 32 and communicates this information to the control device 600.
In some embodiments, a sensor may be mounted on the cutting assembly 66 to monitor the amount of force of the cutting device 32 when the cutting device 32 cuts the cable 22 into a whip. In some embodiments, such a sensor may be mounted on the stamping 162 to detect but not limited to saw wear, when saw is moving through the cable material, and when the cutting has been complete. The sensor is in communication with the control device 600 and can be embodied as any of a variety of sensors capable of detecting force, such as by way of non-limiting example, a force pin, a pressure pad sensor or a bolt sensor. The sensor senses the force of the cutting device 32 while cutting and communicates this information to the control device 600.
In some embodiments, the machine 20 may have a tray (not shown) provided under the notching saw 30 and the cutting device 32 to collect any chips which result from the operations.
In some embodiments, the machine 20 may include a lock (not shown) on the front wall section 42a to prevent easy access to the components in the front compartment 52 of the machine 20. The lock may be in communication with the control device 600 and the control device 600 is programmed to lock the front compartment 52 during the operation.
In the first embodiment shown in
While various embodiments have been described as forming one or more notches in a length of cable 22 (e.g., a whip cut to length), it will be appreciated that the operation/function of cutting a notch/notches in the cable 22 can be omitted within the scope of the disclosure in accordance with various alternative embodiments. For example, in operation, in accordance with some embodiments, information specified for a given whip may specify that one or more of the lead length, tail length, notch depth, and notch length is to be zero (0), such that cutting of one or both of a lead or tail notch is omitted. As another example, in some embodiments the machine 20 may be configured to cut whips to length, but may not be configured to cut notches and some or all elements of the notching saw assembly 64 may be omitted.
While particular embodiments are illustrated in and described with respect to the drawings, it is envisioned that those skilled in the art may devise various modifications without departing from the spirit and scope of the appended claims. It will therefore be appreciated that the scope of the disclosure and the appended claims is not limited to the specific embodiments illustrated in and discussed with respect to the drawings and that modifications and other embodiments are intended to be included within the scope of the disclosure and appended drawings. Moreover, although the foregoing descriptions and the associated drawings describe example embodiments in the context of certain example combinations of elements and/or functions, it should be appreciated that different combinations of elements and/or functions may be provided by alternative embodiments without departing from the scope of the disclosure and the appended claims.
This application claims the domestic benefit of U.S. provisional application Ser. No. 62/382,768, filed on Sep. 1, 2016, the contents of which are incorporated herein by reference.
| Number | Date | Country | |
|---|---|---|---|
| 62382768 | Sep 2016 | US |
