Patent Application
20230241877
The present invention relates to an equipment and a method for placing a film on a support plate having through openings, in particular a plate forming a part holder.
Such support plates have through openings and can be used to hold and separate flat parts from each other, thus forming a part holder. Such support plates thus allow the common treatment of a series of flat parts in a treatment machine, for example in a single-sided or double-sided treatment machine.
Single or double sided treatment machines allow to perform different treatment operations on the flat surface of a part, metallic or not, aiming in particular at rectifying the flatness, the surface finish and/or the dimensions of the part. Among these techniques, we can mention:
These treatment machines include, but are not limited to, grinding or resurfacing, lapping and polishing machines.
The invention therefore concerns the treatment of parts, in particular, but not limited to, the treatment in one of these machines of metal parts, in particular parts made of steel (stainless steel or not), copper alloys, titanium, aluminium alloys, tungsten carbides, precious metals, but also flat parts made of other materials, and in particular of glass, crystals, ceramics, composites, synthetic materials, natural materials such as natural stones.
Such parts are for example flat parts for the watch industry (bridge, plate, gear, pinions, dial, cam, index . . . ) or flat parts for the automotive, aeronautical, or medical fields.
WO2019229585 describes of a part loading assembly in a single or double-sided treatment machine, using a plate-like part holder for holding at least one part. The part holder delimits at least one through opening forming a cell for housing at least one part to be treated, and a film mounted on the first face of the part holder facing said through opening and allowing said part to be held in said opening at least during the loading step.
Thus, a temporary support film is used to hold the parts placed in the windows of the part holder during loading. This film then disappears during the treatment of the parts, the parts remaining in the cells of the parts holder until the end of the treatment. The use of this support film, which forms a temporary bottom for the cells of the part holder, makes it possible to place the parts in the part holder outside the treatment machine, thus reducing the time required to load the parts into the machine to the simple placement of the part holder already filled with parts to be processed.
To date, there is no equipment for applying such a film to a part holder consisting of a support plate with through openings or cells. The application of such a film, and in particular of a soluble film, preferably water-soluble or liposoluble, is currently possible manually. The use of this temporary bottom will, in particular, save time for loading the parts into a treatment machine, thus reducing the downtime of the treatment machine and thus saving money. However, when the operation of mounting each film on a part holder is a completely manual operation, it generates costs that could be reduced with an equipment capable of simplifying the operation and reducing its implementation time.
It is an object of the present invention to provide an equipment and method for laying a film on a support plate that makes this film placing operation easier and more reliable.
Another purpose of the invention is to provide an equipment and method for laying a film on a support plate that allows for a faster implementation of the film putting up operation than a completely manual application procedure.
According to the invention, these aims are achieved in particular by means of an equipment for laying a film on a support plate having through openings, said equipment comprising:
This solution has the advantage, compared to the previous art, of allowing a more precise and reliable application of the film on each support plate with a saving of time compared to an entirely manual operation.
In fact, it is understood that the film arrives from the supply reel placed on the upstream holder at the location between the first platen and the second platen. At the same time, the support plate is retained on the free face of the first platen or the second platen. The movement of the actuator moves from a first position of the first platen in which the first platen is spaced from the second platen, allowing placement of the ribbon with the portion to form the film facing the first platen and placement of the support plate on the first platen or the second platen, to a second position of the first platen in which the film and the support plate are sandwiched between the first platen and the second platen.
For this purpose, the actuator is close to the base so that the arrangement of the base and the actuator allows contact between the first platen and the second platen in the second position of the movable part of the actuator.
Thus, after mounting the film on the support plate provided with through openings, this support plate having to serve as a support for parts during the treatment of these parts, it now forms a plate-shaped part holder provided with a bottom for each through opening which now delimits a cell that can accommodate one or more parts. It is understood that this cavity has the film as a bottom, and that the side walls of this cavity correspond to the portion of the support plate bordering a through opening, the other side of this cavity being open on the face of the support plate opposite the face to which the film is attached.
The film is a portion of the ribbon supported by the supply reel, which portion will form the temporary bottom of the support plate forming the part holder, and also called satellite in particular in the field of watchmaking. For this purpose, the film is a portion such that it covers the support plate in whole or in part. It is understood that the film covers at least all the through openings, on one of the faces of the support plate, to form cells with the film as a bottom, these cells being open on the other side opening onto the face of the support plate not covered by the film. The film-covered support plate can then be used as a temporary support for the parts to be processed, which are placed one by one or several in each cell. Since the preparation of this temporary carrier filled with parts can be carried out in advance and outside the treatment machine, it is sufficient to put these filled temporary carriers on standby until the time of treatment: the time required for placing each support plate with film and parts in the treatment machine is thus much shorter than placing the support plate in the treatment machine and then placing each part one by one in the through openings of the support plate as before.
According to one arrangement, the base comprises a first platen delimiting a footprint whose contour has a shape that can cover at least all the through openings of the support plate. Thus, this footprint is a visual mark, possibly in relief (recessed or protruding), for positioning the film on the first platen and possibly contributing to the delineation and separation of the film from the ribbon when placing the film on the support plate. This also ensures that the shape and size of the film will allow the film to cover all of the through openings in the support plate and thus serve as a temporary bottom to all of the through openings in the support plate.
According to another arrangement, the second platen delimits a footprint whose contour is superimposable on the contour of the footprint of the first platen, with contact between the contour of the footprint of the second platen and the contour of the footprint of the first platen in said second position of the movable part. Thus, it is understood that upon contact between the first platen and the second platen, the contour of the footprint of the first platen coming into contact with the contour of the footprint of the second platen, this contact will facilitate the cutting and separation of the film from the ribbon when the film is placed on the support plate.
According to yet another arrangement, the second platen is removable and the first platen is removable. Thus, a set of pairs of first and second platens (e.g., a top platen and a bottom platen) may be defined, each pair being adapted to a size and/or shape of support plate. In the case of the foregoing arrangement, each pair comprises a first platen and a second platen, the first platen defining a footprint with a contour superimposable on the contour of the footprint of the second platen, said contour having a different size and/or shape in each pair.
The present invention also relates to a method of applying a film to a support plate having through openings, comprising the following steps:
Then, the operations are repeated, starting from the step of placing the movable part of the actuator in the first position, and continuing with a new support plate and the advancement of the ribbon to have a new film opposite the area where the free face of the support plate will be in the second position of the movable part of the actuator.
This results in a partially or fully mechanized procedure, whereby some of the steps in this film application process can remain manual with other steps mechanized or even automated, or all steps in this process can be automated.
In this method of placing film on a support plate, one or more of the following provisions may be implemented:
Non-limiting embodiments of the invention are set out in the description, which is illustrated by the attached figures, in which:
A first embodiment of the equipment 100 according to the present invention is shown in
The assembly station 120 is disposed between the upstream holder 112 and the downstream holder 114. The assembly station 120 comprises a base 122 on which a first platen 124 is mounted: in this first embodiment, it is a fixed lower plate 124 and a fixed base 122, these two elements therefore not being mobile. The assembly station 120 comprises an actuator 126, opposite the base (above the base 122 in the embodiment shown), with a movable part 129 at the free end of which is mounted a second platen 128 forming an upper platen.
In this embodiment, the actuator 126 is an actuator and the movable part 129 of the actuator 126 comprises a piston with linear motion. This actuator 126 is disposed opposite facing the base 122, said actuator defining a longitudinal axis (here vertical) intersecting with the first platen 124 mounted on the base 122, this axis being disposed orthogonally with the first platen 124. In the configuration adopted in the figures, this axis passes through the center of the footprint 124a of the first platen 124, defined below. Furthermore, the second platen 128 is mounted on the free end of the piston rod, and is removable for interchangeability with another platen 128′ or 128″. The actuator 126 (here the cylinder) is for example pneumatically actuated, other types of actuation remaining possible.
According to one embodiment of the depicted first embodiment, the up and down movement of the movable part 129 (piston) of the actuator 126 (herein the cylinder) is triggered by an operator acting on a handle 130. According to another implementation possibility of the first embodiment shown, the downward movement of the movable part 129 (piston) of the actuator 126 (here the cylinder) is triggered by an operator acting on a handle 130 and the upward movement is actuated by a motorized system. According to another possibility of implementation of the first embodiment shown, the upward movement of the movable part 129 (piston) of the actuator 126 (here the cylinder) is triggered by an operator acting on a handle 130 and the downward movement is actuated by a motorized system. According to one possibility of implementation of the first embodiment shown, the lowering movement of the movable part 129 (piston) of the actuator 126 (here the cylinder) is performed in one sequence, and according to another possibility, the lowering movement of the movable part 129 (piston) of the actuator 126 (here the cylinder) is performed in two sequences (in two times). Indeed, according to a variant, the descent of the mobile part 129 (piston) of the actuator 126 (here the jack) can be carried out in two steps in order to, in the first place, bring the first platen 124 and the second platen 128 closer to each other, and then, in the second place, to put them in contact with each other. This contact can be carried out with a pressure of at least 1 bar, for example between 1 bar and 5 bars, or between 1 bar and 10 bars, or even between 1 bar and 20 bars, for a minimum duration, for example of at least 5 seconds, or even of at least 10 seconds, or even of at least 30 seconds. The value of the pressure exerted between the first platen 124 and the second platen 128 and the duration of this pressurization depend on how quickly the film 34 is attached to the support plate, and especially on the structural strength (fragility) of the support plate 20. For example, particularly in the case of small support plates, the movable part 129 of the actuator 126 is arranged so that when the second platen 128 is in contact with the first platen 124, the second platen 1128 exerts a pressure of at least 1 bar, and in particular of between 1 and 5 bar at the maximum. The first part of the descent may allow the first platen 124 and the second platen 128 to be brought sufficiently close together to allow the portion of the ribbon 30 intended to form the film 34 to be held in the correct position, or even to be able to still return this portion of the ribbon to the correct position aligned with the support plate 20. It can be seen from
This first platen 124 and this second platen 128 are of a first design and are paired, forming a pair of platens between them that cooperate to allow removal and separation of the film 34 from the remainder of the continuous ribbon 30, and then contact of the film to the support plate, as will be explained later.
To this end, the first platen 124, includes on its free face a circular footprint 124a (An imprint for example in the form of line(s), groove(s) or rib(s) or recessed or projecting disk) whose contour corresponds to the contour of the film 34 to be placed on the support plate, as can be seen in
In
As can be seen in
The downstream holder 114 carries a collecting reel 42 on which the remaining continuous ribbon 30, without the film 34, forming a filmless ribbon 31, is wound for recovery. As the ribbon 30 advances from left to right in
According to the respective materials used for the support plate 20 and for the film 34, the film 34 is attached to the face of the support plate 20 by gluing, welding, or by static electricity, molecular adhesion, capillarity . . . .
According to one arrangement, the continuous ribbon 30 comprises two superimposed layers: a first layer 35 of a first material covered by a second layer 36 of a second material. The film 34 consists of only the first layer 35, thus only the first material.
The first material is a material that is easily degradable by friction or by contact with a liquid, in particular a material that is soluble in a liquid, preferably a water-soluble or fat-soluble material, such as a water-soluble or fat-soluble plastic. Examples of a water-soluble material for forming the film include polyvinyl acetate (PVA) or polyvinyl alcohol (PVAL), or another water-soluble resin, or a mixture of these water-soluble materials.
The second layer 36 serves as a support and protection for the first layer 35. This second layer 36 is made of a second material that is non-adherent to itself and also non-adherent to the first material. This second layer 36 serves as a protection and support for the first layer, which alone will form the film. Within the equipment 100, the ribbon 30 is arranged so that the first material (the first layer 35) is able to face the support plate 20, including in the second position of the moving part 129 of the actuator 126. As seen in the figures, the continuous ribbon 30 is placed so that the portion of the ribbon that will form the film 34 to be placed on the support plate 20, is located between the second platen 128 and the first platen 124 facing the support plate 20, with the first layer 35 of said portion of the ribbon 30 directly facing the support plate 20. The second layer 36 of the ribbon 30 will remain integrally on the section 31 of the ribbon without the films 34, said films having been detached from the ribbon 30 and remained one by one on a support plate 20, with this section 31 and the second layer coming on the collecting reel 42.
In the first embodiment, the support plate 20 is placed on the second platen 128. In this configuration, as can be seen in
To this end, the second platen 128 includes passages 128b between its two faces (see the openings in
To facilitate the correct positioning of the support plate 20 on the second platen 128, as can be seen in
In the illustrated embodiment of the first embodiment, a suction or vacuum is also used to hold the portion of the ribbon 30 forming the film 34 (precut disk along the pre-cut line 32 of the first layer 35 in the figures) in position against the footprint 124a of the first platen 124 (see
As seen in
It can be seen, for example, that the lowermost generatrix of the two guide rollers 140, 142, is located below the plane passing through the free face (top face) of the first platen 124 (lower platen) or below and preferably within 1 centimeter of said plane passing through the free face (top face) of the first platen 124 (lower platen).
We now describe the implementation of the method of laying the film on the support plate with this first embodiment of the equipment 100 in which the first platen 124 carrying the support plate 20, is fixed.
Step 1: the supply reel 40 carrying the ribbon 30 is placed on the upstream holder 112 and the empty collecting reel 42 is placed on the downstream holder 114. Then the ribbon 30 is advanced by allowing the rotation of the upstream and downstream holders 112 and 114, so that the portion forming the film 34 is well placed, facing the first platen 124 mounted on the base 122: this is the centring of the film 34 pre-cut in the ribbon 30 with respect to the footprint 124a of the first platen 124 (see the arrows showing the advance of the ribbon 30 on
Step 2: the suction unit 123 is activated, with the negative pressure of the passages 124b through the first platen 124 drawing the ribbon 30 against the first platen 124, which maintains the correct positioning of the ribbon on the footprint 124a of the first platen 124. In this arrangement, the first layer 35 of the ribbon 30 faces upward toward the second or top platen 128, and it is the second layer 36 of the ribbon that is held in contact against the top face of the first platen 124. This is the stabilization of the portion of the ribbon 30 carrying the film 34 (see
Step 3: the entire first face 20a of the support plate 20 to be covered is moistened, i.e. wetted with liquid, and in particular with a water spray (see
Step 4: the support plate 20 is positioned on the second platen 128, with its second face 20b facing the second platen 128, by placing the centring hole 22 of the support plate on the centring pin 128c of the second platen 128 (see
Step 5: the movable part of the actuator, namely in this case the piston 129 of the cylinder 126, is lowered, for example by lowering the handle 130, and this until the contact between the first platen 124 and the second platen 128 (
Step 6: the retaining system of the support plate 20 is deactivated by stopping the operation of the suction unit connected to the passages 128b of the second platen 128, which allows the release of the support plate 20 from the second platen 128, the support plate being placed against the film 34 both positioned in a centered manner (concentric in the figures) with respect to each other. For example, the arrival of the second platen 128 in its lower position is detected by detecting a contact between two other elements.
Step 7: a pressure of the order of a few bars is maintained between the second platen 128 and the first platen 124 via the cylinder 126, and this for a time of the order of a few seconds. During this time, the film 34 adheres to the first face 20a of the support plate 20 by contact between the liquid present on this first face 20a of the support plate 20 and the film 34;
Step 8: the mobile part of the actuator, namely in this case the piston 129 of the cylinder 126, is raised, for example by activating the rising either automatically or manually by the handle 130. This rising step can be carried out in a continuous sequence (a single step) or in two steps. At the beginning of this step, the film 34 is stuck to the support plate 20, and is no longer connected to the rest of the ribbon 31 from which it has been detached, while still being positioned against (here above) the second layer 36. At the end of this step, the second platen 128 is in its second high position, and the ribbon 30 no longer comprises anything but the second layer 36 in the portion that served to form the film 34;
Step 9: the support plate 20 coated with the film 34 is unloaded, forming a loading assembly 24 for parts to be processed/treated 26 (
The stopping of the suction unit 123 connected to the first platen 124 takes place during step 7 or during step S, as long as the suction unit 123 is activated, the portion of the second layer 36 of the ribbon 30 that was facing the film 34 remaining pressed against the first platen 124 and thus facilitating the separation and subsequent removal of the film 34 from the ribbon 30. This takes place in the form of the separation of a portion of the first layer 35 from the second layer 36, along the pre-cut line 32.
The film-covered support plate 24 can be removed from the equipment 100 manually, or automatically. In the latter case, for example, the equipment 100 further comprises an unloading unit (not shown) adapted to take said film-covered support plate 20 (forming a loading assembly 24) out of said assembly station 120 when the movable part 129 of the actuator 126 (piston rod of the cylinder) has returned to the first (raised) position.
Similarly, the support plate 20 can be placed in the assembly station 120 manually or automatically. In the latter case, for example, the equipment 100 further comprises a loading unit (not shown) adapted to bring a support plate 20 into said assembly station 120 on the second platen 128 (upper platen for the first embodiment) or on the first platen 124 (lower platen for the second embodiment), when the movable part 129 of the actuator 126 (piston rod of the actuator) is in the first (raised) position (and with the movable part 125 of the actuator in a resting position, retracted for the second embodiment).
The support plate 20 is a part holder whose through openings 21 form cells capable of holding one or more parts 26. This support plate is for example a satellite, used in particular for polishing flat parts 26 in the field of watchmaking. The through openings 21 can have multiple shapes and sizes, including on the same support plate 20: in the figures these through openings 21 are circular but these through openings 21 can be oblong, oval, square, rectangular, or any other regular or non-regular polygon, in the shape of a semicircle, a portion of a circle, a moon, etc . . . . Thus, thanks to the process according to the invention, the film 34 is positioned opposite the first face 20a of the support plate 20, then is placed (
The parts to be processed 26 are individually placed in the cells manually or by a dedicated module. According to one possibility of implementation, a parts loading machine (not shown) is provided comprising the equipment 100 previously described, a station for receiving parts to be processed 26 and a station for receiving support plates 20 covered with said film 34 (loading assemblies 24). These two stations form a downstream unit with respect to the equipment 100 and allow the manual or mechanized placing of the parts 26 in the cells of the support plate. In the latter case, according to a possible implementation, the parts loading machine further comprises a parts to be processed loading station adapted to pick up a support plate covered with said film 24 from the receiving station for support plate covered with said film 24, to pick up a part to be processed 26 from the parts to be processed receiving station and to place said part to be processed 26 in an opening 21 of said support plate 20 covered with said film 34. Thus, an automatically operating part loading machine is provided for placing the parts 26 on the support plate covered with said film 34.
The humidification of the support plate 20 or of the film 34 is carried out, for example, by spraying a jet of liquid in fine droplets, this liquid spray, for example water, being able to be carried out by an operator or by a dedicated module. In the latter case, the equipment 100 comprises a liquid spray unit (not shown), in particular a humidification unit, located near the assembly station 120, and capable of humidifying the face of the film 34 in the portion delimited by the pre-cuts line 32 (this portion being already placed or not facing the support plate 20) or capable of humidifying the free face of the support plate 20 (first face 20a). For wetting the support plate, this can be done when said support plate 20 is mounted on the first platen 124 or on the second platen 128, or upstream, i.e., before said support plate 20 is mounted on the first platen 124 or on the second platen 128, for example when a series of support plates 20 is arranged on a support plate supply station (not shown).
According to a possible arrangement, but not shown, the equipment 100 further comprises a vision control unit, comprising an image taking system and an image treatment and analysis system, the vision control unit being able to take views (images) of the area of the first platen 124 and/or the second platen 128
For example, such a vision control unit implemented in the case of the first embodiment as shown in the figures, allows to take views oriented in the direction of the upper face of the first platen 124 forming a lower platen, and this whether this first platen 124 is uncovered, or whether this first platen 124 is covered by the support plate 20 (these are then views of the upper face of the support plate 20), but also when the ribbon 30 passes over the support plate 20 (these are then views of the top of the ribbon 30 and of a portion of the support plate or only views of the top of the ribbon over the support plate 20 if the ribbon 30 covers the entire support plate 20 and this support plate 20 is no longer visible).
The images taken by the vision control unit can be used to locate the position of the footprints 124a of the first platen 124 and to locate the position of the pre-cut line 32 of the ribbon in order to match them (concentrically if they are circular, and/or to make them coincide, particularly if they are superimposable).
This image-taking system capable of taking images corresponds to an optical system, in particular a centered optical system, comprising a set of optical components and an image acquisition system. Such an image acquisition system makes it possible to take photographs and/or videos, and is presented for example in the form of a camera or a photographic apparatus, in particular a digital camera.
This vision control unit is preferably able to control the position of and/or to activate/deactivate one or more elements of the equipment 100, for example to position the ribbon 30 and the film 34 with respect to the position of the support plate 20 which is to receive the film 34, and this via, for example, the rotation of the upstream holder 112, or to control the elements of the equipment 100 allowing the cutting and laying of the film 34, in particular the actuator 126 (and the actuator 125 for the second mode of implementation).
Thus, this vision control unit may be able to set in motion and stop the rotational movement of the downstream holder 114, to allow the advancement of the downstream section of the ribbon 31 that no longer has the film 34, and to place a new section of the ribbon 30 having a pre-cuts line 32 on the first platen 124 (or the second platen 128 for the second embodiment).
This vision control unit may be able to control the movement of the movable part 129 of the actuator from the first position to the second position and vice versa.
This vision control unit may also be able to control any one or more of the following elements previously described: loading unit, unloading unit, suction unit connected to the first platen 124, suction unit connected to the second platen 128.
Reference is now made to
In the case of the second embodiment, the arrangements previously described in relation to the first embodiment remain valid except for the following:
More generally, according to the second embodiment of the invention in which the support plate 20 is mounted on the first platen 124, said first platen 124 is adapted to receive the support plate 20, and the base 122 is movable between a retracted position or first position, in which the first platen 124 is more than 2 centimeters away from the passage area of the section of the ribbon 30 located between the upstream holder 112 and the downstream holder 114, and an operative position or second position in which the first platen 124 is less than 1 centimeter away from said passage area. Thus, in the retracted position, the distance between the ribbon 30 and the first platen 124 ensures a sufficient distance between the support plate 20 and the ribbon 30 to allow the ribbon 30 to be advanced to the position in which the film 34 faces the support plate, and also allows for wetting of the support plate 20 resting on the first platen 124. The operative position allows proximity or even contact between the film 34 and the top side of the support plate 20, and this is prior to movement of the base 122 (e.g., upward) toward the second platen 128, whereby the first platen 124 and the second platen 128 come into contact.
In this second embodiment, two variants are considered:
In the present invention, with a ribbon 30 formed of a first layer 35 of a first material superimposed on a second layer 35 of a second material, this ribbon 30 is arranged so that the first material (the first layer 35) is adapted to face the support plate 20. This means that when the ribbon 30 extends between the supply reel 40 and the collecting reel 42, the first material (the first layer 35) of the portion of the ribbon 30 intended to form the film 34 faces the one of the first platen 128 and the second platen 124 that receives or is intended to receive the support plate 20 on which the film 34 is to be mounted.
The method of applying the film 34 to the support plate 20 is similar to that previously described in connection with the first embodiment, except for the following points:
The examples illustrated in the figures and described relate to an equipment with a vertical back and forth movement of the piston of a cylinder, which piston forms the movable part of the actuator mentioned in the broadest conception of the present invention. In these examples, the first platen is a lower platen and the second platen is an upper platen, such that in the first position the second platen is raised relative to the first platen and in the second position the second platen is lowered relative to the first platen. In particular, in these illustrated examples, the second platen 128 is disposed above the first platen 124 and forms a top platen. Also, in the illustrated examples, the actuator 126 is disposed above the base 122, with the axis of the actuator 126 orthogonal to the top face of the first platen 124: in particular, the actuator 126 is an actuator with a linear motion piston, disposed above the base 122, said actuator defining a longitudinal axis intersecting with the first platen 124 and disposed orthogonally with the first platen 124. Other geometric arrangements or other types of motion remain possible within the scope of the present invention. In particular, a horizontal back and forth movement of the piston of the actuator (or more generally of the movable part of the actuator) can be envisaged, the first platen and the second platen then coming into contact by their facing faces which are then oriented vertically. It is also possible to envisage an inclined back and forth movement of the piston of the jack (or more generally of the mobile part of the actuator), the first platen and the second platen then coming into contact by their opposite faces which are then oriented in an inclined way, but always parallel to each other.
It can also be envisaged that the mobile part of the actuator is an arm pivoting around a horizontal axis with at its end a tooling carrying the support plate, this arm passing from a high, raised position, with the free face of the support plate turned towards the front, to a low, lowered position, with the free face of the support plate turned downwards and being horizontal, coming to stick to the film
The examples illustrated in the figures and described relate to equipment with a pneumatic cylinder as actuator: other types of cylinders or actuators are possible within the scope of the present invention, such as mechanical, electrical, electromagnetic, hydraulic, etc. actuators. Similarly, the examples illustrated in the figures and described relate to equipment with a linear motion actuator: other types of actuators or cylinders are possible within the scope of the present invention, such as rotary actuators, pendulum actuators, etc . . . .
The present patent application is not limited to the field of single-sided or double-sided treatment machines, but the equipment and method of applying film to a plate-like substrate can be used in other fields as well, including intermediate storage or pre-positioning of components of all types for subsequent operations.
| Number | Date | Country | Kind |
|---|---|---|---|
| CH000099/2022 | Feb 2022 | CH | national |
