JP5048080B2 - Plastic film peeling device - Google Patents

Description

  The present invention relates to a plastic film peeling apparatus, and in particular, a coverlay film or a reinforcing film that is attached to one surface of a long mount film and precut to a predetermined size can be peeled from the mount film with a small peeling force. The present invention relates to a plastic film peeling apparatus.

  In general, a flexible wiring board is made of a thin polyimide film or polyester film as a base film, and a copper foil constituting an electronic circuit is attached to the surface thereof. In addition, electronic components are directly mounted on the electronic circuit, and the electronic circuit is further covered with a coverlay film for protecting the circuit.

  Such flexible wiring boards are thin, soft, and can be bent freely. However, when mounting components on them or connecting them to connectors, some thickness and firmness may be required. is there.

  Therefore, in order to ensure the rigidity of a part of the base film, a reinforcing plate having a predetermined shape and size is attached to the base film.

  In the process of manufacturing the flexible wiring board described above, in order to correctly align and attach the coverlay film on the electronic circuit to be coated on the base film, it is usually precut from a long mount film The coverlay film was peeled off manually, and after positioning with the use of positioning pins, it was stuck on the electronic circuit of the base film.

  The same applies to the reinforcing film, in which the reinforcing film is manually peeled off from the backing film, and the reinforcing film is attached to an area where the base film needs to be reinforced.

  Thus, sticking a coverlay film or a reinforcing film manually has been a major obstacle to automating the production of flexible wiring boards.

  Further, when peeling the coverlay film from the mount film, if the coverlay film is pulled up perpendicularly to the surface of the mount film, a large peeling force is required.

  Accordingly, an object of the present invention is to solve the problems of the prior art described above, and to make it possible to peel a plastic film such as a cover lay film and a reinforcing film from the mount film 10 with a small peeling force and to manufacture a flexible wiring board. An object of the present invention is to provide a plastic film peeling apparatus that can automate the process.

  In order to achieve the above object, a plastic film peeling apparatus according to the present invention includes a fixed base bed having a substantially horizontal guide surface, and a predetermined guide via a linear guide along the guide surface of the base bed. A movable peeling unit capable of reciprocating back and forth between strokes and provided with a peeling blade at the tip, a driving device for reciprocating the movable peeling unit back and forth, affixed on a backing film and a predetermined A plastic film suction holding device for sucking and holding a plastic film pre-cut to a size, a first clamping device installed on the base bed side and sandwiching the mount film, and on the movable peeling unit side And a second clamping device which is installed and can hold the mount film.

  In the plastic film peeling apparatus according to the present invention, the plastic film may be a coverlay film or a reinforcing film.

  In the plastic film peeling apparatus according to the present invention, it is preferable that the linear guide includes a retainer which is provided on the movable peeling unit side and accommodates a large number of balls in an endless manner so as to be rollable in the housing. .

  In the plastic film peeling apparatus according to the present invention, it is preferable that the peeling blade is a linear bar extending in a direction perpendicular to the running direction of the mount film.

  In the plastic film peeling apparatus according to the present invention, the peeling blade is preferably formed by a part of a cylindrical surface having a predetermined radius at the tip.

  In the plastic film peeling apparatus according to the present invention, the driving device includes a servo motor, a ball screw rotated by the servo motor, and a nut screwed to the ball screw and attached to the movable peeling unit. It is preferable to be configured.

  In the plastic film peeling apparatus according to the present invention, it is preferable that the suction holding apparatus includes a suction table that can be moved up and down by a lifting means.

  In the plastic film peeling apparatus according to the present invention, each of the first and second clamping devices sandwiches the mount film between the fixed clamp bar extending across the entire width of the mount film and the fixed clamp bar. Thus, it is preferable that the movable clamp bar is opposed to the fixed clamp bar and moved between the clamp position and the unclamp position.

  In the plastic film peeling apparatus according to the present invention, the pre-cut plastic film adhered to one side of the long mount film is rewound from a rewinding reel, and the peeling blade of the movable peeling unit is It is preferably configured to pass over and be taken up by a take-up reel.

  According to the plastic film peeling apparatus of the present invention, the plastic film in which the peeling blade of the movable peeling unit is attached to the backing film is peeled off from the backing film at an acute peeling angle with respect to the backing film. The plastic film can be smoothly peeled off with a uniform force over the entire width with a small peeling force, and the manufacturing process can be automated.

It is the front view which showed one Embodiment of the peeling apparatus of the plastic film by this invention. It is a left view of the peeling apparatus of the plastic film. It is the perspective view which showed the state by which the coverlay film was stuck on the mount film. It is the perspective view which showed the state by which the coverlay film stuck on the mount film was pre-cut. It is a top view of the peeling apparatus of the plastic film. It is a right view of the peeling apparatus of the plastic film. It is the front view which showed the adsorption | suction holding | maintenance apparatus of the coverlay film. It is the top view which showed the adsorption table. It is the cross-sectional view which showed the peeling blade. It is the perspective view which showed the clamp apparatus. It is explanatory drawing which showed typically the last retracted position and the most advanced position of a movable peeling unit.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a plastic film peeling apparatus according to the present invention will be described with reference to the drawings.

  Although this embodiment demonstrated the example which applied this invention with respect to the coverlay film, this invention is not limited to this, It is applicable also to a reinforcement film.

  FIG. 1: has shown the front view of one Embodiment of the peeling apparatus of the plastic film by this invention. FIG. 2 shows a left side view of the plastic film peeling apparatus.

  In FIG. 1, reference numeral 1 denotes a base bed installed on the floor, and a base 2 is horizontally installed on the upper surface of the base bed 1, and two linear guide rails 3 parallel to the base 2. , 3 (see FIG. 2) are installed almost horizontally with an appropriate interval. Further, on the gantry 2, a transport table 4 (see FIG. 2) through which a plastic film to be peeled passes is installed. A movable peeling unit 5 is slidably mounted on the guide rails 3 and 3 along the rail in the left-right direction in the figure.

  As is apparent from FIG. 1, a nut 6 is fixed to the lower surface of the movable peeling unit 5, and a ball screw 7 is screwed onto the nut 6.

  The ball screw 7 is driven to rotate clockwise or counterclockwise by a servo motor 8, and by controlling the operation of the servo motor 8, the movable peeling unit 5 is moved to the most advanced position A shown in FIG. Position) and the last retracted position B (standby position) indicated by an imaginary line.

  Further, a peeling blade 9 whose detailed configuration will be described later is attached to the most advanced position of the movable peeling unit 5.

  Here, the plastic film supplied to the plastic film peeling apparatus according to the present invention and processed will be described with reference to FIGS.

  As shown in FIG. 3, this plastic film has a long mount film 10 made of polyethylene resin, polyester resin, mylar film, or the like, on which the coverlay film 11 has a weak adhesive force in advance. It is attached so that it can be easily peeled off. The coverlay film 11 is made of a polyimide resin or a polyester resin.

  Thus, the cover lay film 11 is a state before being processed by the plastic film peeling apparatus according to the present invention, as shown in FIG. 12 and 12 are pre-cut to a predetermined size in advance.

  In this state, it is wound in advance on the rewinding reel 15 shown in FIG. Incidentally, a leading film (not shown) having a predetermined length is usually connected to the front end of the cover lay film 11 to facilitate the initial setting of the manufacturing process.

  As shown in FIG. 1, the mount film 10 is sequentially wound around a counter roller 16 and a turning roller 17 for applying appropriate tension to the mount film 10, and is then supported by the transport table 4 while Is pulled out in a substantially horizontal state in the direction, passes under the movable peeling unit 5, is bent by the peeling blade 9, moves in the direction changed, and is taken up clockwise by the take-up reel 20 through the guide rollers 18 and 19. It is configured as follows.

  The take-up reel 20 is configured to be taken up clockwise by a drive motor 21 via a belt 22 in the figure.

Here, the configuration of the movable peeling unit 5 will be described with reference to FIGS. 1, 2, 5 and 6.
The movable peeling unit 5 has a right-side plate 25 and a left-side plate 26 having the same shape and the same size, which are substantially parallel and vertically erected, and the rear end thereof is connected by a horizontally long rear frame 27, and the front end is They are connected by a horizontally long front frame 28 (see FIGS. 2 and 6).

  The lower surfaces of the right side plate 25 and the left side plate 26 are connected by a bottom plate 29, and two linear guides 30 and 30 are attached in parallel to the lower surface, as is apparent from FIG. The linear guides 30 and 30 are provided with a retainer 31 which accommodates a large number of balls in an endless manner so as to be able to roll in the housing, and is configured so that the large number of balls can roll on the guide rails 3 and 3. . As this linear guide itself, a commercially available one can be used.

  A peeling blade 9 is attached to the lower end of the movable peeling unit 5 in the lateral direction over the entire width. Further, a guide roll 32 is disposed behind the peeling blade 9, and both ends thereof are rotatably supported by bearings 33 and 33 (see FIG. 6).

  Next, the structure of the suction holding device 35 for sucking and holding the pre-cut coverlay film 11 will be described with reference to FIG.

  As is apparent from FIG. 1, the suction holding device 35 includes a suction table 36 installed on the base 1 (see FIG. 7). The suction table 36 is installed on a lifting platform 37 so as to be movable in the horizontal direction via a slide table 34 along a traverse line (not shown).

  Four guide rods 38, 38, 38, 38 are provided downward at the four corners of the lifting platform 37, and each of these guide rods 38 is loosely fitted in the guide bush 39.

The lifting platform 37 is configured to be moved up and down by the pneumatic cylinder device 40. Since the suction table 36 can be moved up and down at the same time by the vertical movement of the lifting platform 37, one of the preset cover lay films 11 can be pressure-bonded to a predetermined position of the base film in the next step.
A servo motor may be used in place of the pneumatic cylinder device 40.

  Furthermore, as is apparent from FIG. 8, the suction table 36 has a large number of mesh-like vacuum suction ports 41, 41,... 41, which pass through the vacuum suction passage. Connected to a vacuum suction source. Therefore, at the most advanced position of the movable peeling unit 5, the cover lay film 11 guided directly above the suction table 36 can be sucked and held at that position.

  The peeling blade 9 is an important component for the present invention, and as is apparent from FIG. 9, the cross section has a trapezoidal shape, and includes a bottom surface 9a, a tip portion 9b, an inclined surface 9c, and an upper surface 9d. When the angle between the bottom surface 9a and the inclined surface c is the peeling angle θ, the peeling angle θ is set to an acute angle, preferably about 45 degrees.

  It is desirable that the front end portion 9b be a circular curved surface having a circular cross-sectional outline so that the mount film 10 can be smoothly slid and changed in the arrow direction without being cut.

  Further, since the mount film 10 is in sliding contact with the top end portion 9b of the peeling blade 9, it is desirable that the material is made of a material having a small coefficient of friction, such as Teflon (registered trademark).

  Thus, a first clamping device 45 capable of sandwiching the mount film 10 moving in the horizontal direction is provided at the end of the gantry 2 near the suction holding device 35, while a peeling device is provided at the front end of the movable peeling unit 5. A second clamp device 50 capable of sandwiching the mount film 10 after passing through the blade 9 is installed.

  As is clear from FIG. 1, the first clamping device 45 has a support column 46 attached to the gantry 2, and a fixed clamp bar 47 is provided at the upper end of the support column 46 so as to face the fixed clamp bar 47. A movable clamp bar 48 is provided. The movable clamp bar 48 is driven to open and close by a pneumatic cylinder device 49.

  On the other hand, the second clamp device 50 includes a fixed clamp bar 51 fixed to the front end of the movable peeling unit 5, a movable clamp bar 52 provided so as to be openable and closable against the fixed clamp bar 51, and a pneumatic cylinder. The apparatus 53 (refer FIG. 5) is comprised.

  FIG. 10 illustrates the first clamp device 45 as an example of the above-described clamp devices, and the mount film 10 and the coverlay film 11 are indicated by virtual lines for convenience. That is, the first clamp device 45 has a fixed clamp bar 47 extending over the entire width of the mount film 10, and a guide bar 47 a and a guide bar 47 b are fixed to both ends thereof, and the guide bar 47 a and the guide bar are fixed. A movable clamp bar 48 is loosely fitted to the rod 47b.

  The movable clamp bar 48 is moved in the direction of the arrow by the pneumatic cylinder device 49 to selectively take a clamped state and an unclamped state.

  Next, an operation procedure of the plastic film peeling apparatus configured as described above will be described.

  First, a pre-cut coverlay film 11 stuck on a long mount film 10 is wound around a rewind reel 15, and a leading tape is connected to the tip. Keep it.

  As shown in FIG. 1, the mount film 10 and the coverlay film 11 wound around the rewind reel 15 are sequentially wound around a counter roller 16 and a turning roller 17 for applying appropriate tension to the mount film 10. After that, it passes over the transfer table 4, is pulled out in a substantially horizontal state in the right direction in the figure, passes under the movable peeling unit 5, passes over the peeling blade 9, and passes through the guide rollers 18 and 19. It is wound up by the take-up reel 20.

  Initially, the movable peeling unit 5 is in the last retracted position (standby position) indicated by a virtual line in FIG.

  At this position, the second clamping device 50 is in a clamped state, and the first clamping device 45 is in an unclamped state.

  From this state, the movable peeling unit 5 is advanced to the most advanced position shown by the solid line in FIG. 1 and stopped at that position (step 1). As a result, the mount film 10 is pulled out from the rewind reel 15 together with the coverlay film 11 by a required length.

  The movable peeling unit 5 is temporarily stopped when it has moved to the most advanced position. At this time, the pre-cut cover lay film 11 is positioned immediately above the suction table 36 raised by the pneumatic cylinder device 40, and one of the cover lay films 11 is peeled off from the mount film 10 by the vacuum suction action of the suction table 36. Suction is held on the suction table 36 (step 2).

  Next, the second clamping device 50 is released in an unclamped state, the first clamping device 45 is clamped in a retracted state, the movable peeling unit 5 is retracted, and the mount film 10 is wound up by the take-up reel 20 (step) 3).

  When the movable peeling unit 5 reaches the last retracted position, the movement of the movable peeling unit 5 is stopped and the process returns to Step 1.

  Incidentally, one of the cover lay films 11 sucked and held on the suction table 36 is transferred by the slide table 34 directly below the base film along the traverse line, and temporarily crimped to a predetermined position of the base film. Thereafter, the suction table 36 is returned to the original horizontal position along the traverse line by the slide table 34, and further lowered to the original vertical position.

  By repeating Step 1 to Step 3 described above, the coverlay film 11 can be intermittently peeled from the backing film 10 and automatically supplied to the next process.

  As is apparent from the above description, according to the present invention, the cover lay film or the reinforcing film in which the peeling blade of the movable peeling unit is stuck to the backing film is peeled off at an acute peeling angle with respect to the backing film. Therefore, the coverlay film and the like can be smoothly peeled off with a uniform force over the entire width with a small peeling force, and the manufacturing process can be automated.

Claims (9)

A fixed base bed having a substantially horizontal guide surface, and a movable peeling unit capable of reciprocating back and forth between the predetermined strokes along the guide surface of the base bed and provided with a peeling blade at the tip. A driving device for reciprocally driving the movable peeling unit back and forth, and a plastic film adsorption holding device for adsorbing and holding a plastic film adhered to a long mount film and precut to a predetermined size; A rewind reel on which the mount film to which the plastic film is attached is wound, a take-up reel that winds up the mount film drawn out from the rewind reel and bent by the peeling blade, and the base A first clamping device installed on the bed side and sandwiching the mount film; and the movable peeling unit side Installed and a second clamping apparatus capable sandwiching the mount film bent by the peeling blade,
With the second clamping device in a clamped state and the first clamping device in an unclamped state, the movable peeling unit is advanced from the most retracted position to the most advanced position, whereby the mount film is unwound. More drawers,
When the movable peeling unit moves to the most advanced position, the plastic film is sucked and held by the vacuum suction action of the sucking and holding device,
With the second clamp device in an unclamped state and the first clamp device in a clamped state, the movable peeling unit is retracted from the most advanced position to the last retracted position, and the take-up reel is the mount film. A plastic film peeling apparatus characterized by winding up the film.   2. The plastic film peeling apparatus according to claim 1, wherein the plastic film is a coverlay film.   2. The plastic film peeling apparatus according to claim 1, wherein the plastic film is a reinforcing film. The movable peeling unit is provided on the movable peeling unit side, and is capable of reciprocating back and forth via a linear guide including a retainer that accommodates a large number of balls in an endless manner in a housing. The peeling apparatus of the plastic film in any one of Claims 1-3 . The said peeling blade is a linear bar extended in the direction orthogonal to the running direction of the said mount film, The peeling apparatus of the plastic film in any one of Claims 1-4 characterized by the above-mentioned. 6. The plastic film peeling apparatus according to claim 1 , wherein a tip of the peeling blade is formed by a circular portion having a predetermined radius. The said drive device is comprised from the servomotor, the ball screw rotationally driven by this servomotor, and the nut screwed together with this ball screw and attached to the said movable peeling unit . 7. The peeling apparatus for a plastic film film according to any one of 6 above. 8. The plastic film peeling apparatus according to claim 1 , wherein the suction holding device includes a suction table that can be moved up and down by a lifting means. Each of the first and second clamping devices is opposed to the fixed clamp bar so that the mount film is sandwiched between the fixed clamp bar extending across the entire width of the mount film and the fixed clamp bar. The plastic film peeling apparatus according to claim 1, comprising a movable clamp bar that is moved between a clamping position and an unclamping position.

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