JP3905645B2 - Film sticking device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a film attaching apparatus for attaching a film to the surface of a substrate exemplified by a substrate for a printed wiring board, a substrate for a liquid crystal display panel, a substrate for a plasma display panel and the like.
[0002]
[Prior art]
For example, in a manufacturing process of a printed wiring board used for an electronic device such as a computer, there is a process of attaching a laminate film to the surface of a printed wiring board.
[0003]
A film sticking apparatus for sticking such a laminate film is a temporary film equipped with a film adsorbing means through a swing roll of a film overhanging device at the leading end of a continuous film wound around a film supply roll. Adsorbed by the attaching member, guided to the tip of the substrate conveyed by the conveying means, temporarily attached to the tip of the substrate by the thin tip that is long in the film width direction in the temporary attaching member, and then by a laminating roll, The substrate is conveyed while pressure-bonding the film to the substrate.
[0004]
The swing roll pulls the film by a spring, gives a constant tension to the film at the time of temporary attachment by the tip of the temporary attachment member, and at the time of tension (main attachment) by a laminating roll, It is provided to apply a certain tension to the film between the laminating rolls.
[0005]
[Problems to be solved by the invention]
The swing roll is parallel to the leading end of the tacking member and the laminating roll so that the film does not wrinkle in both cases of the film tacking by the tacking member and the film main sticking by the laminating roll. Although it is difficult to obtain the parallelism between the swing roll, the tip of the tacking member, and the laminating roll at the same time, it is particularly difficult for a plasma display panel substrate having a width of 800 mm or more. When each member has a long span as in the case of pasting a film, it is very difficult to obtain the parallelism.
[0006]
Furthermore, when the parallelism of the swing arm is given, it is necessary to increase the rigidity of the lever that supports both ends. For this reason, it is possible to attach a bar that connects the left and right levers in parallel with the swing roll. Has a problem that it interferes with the film when the lever swings.
[0007]
Further, as described above, in the case of a long-span swing roll, there is a problem in that the occurrence of twisting cannot be suppressed even if the rigidity of the lever supporting the swing roll is increased.
[0008]
The present invention has been made in view of the above-described conventional problems, and is a swing roll support mechanism in both cases of temporary attachment of a film by a temporary attachment member and original attachment of a film by a laminating roll. An object of the present invention is to provide a film tensioning device that can reliably prevent wrinkling of a film without increasing the rigidity of the film.
[0009]
[Means for Solving the Problems]
According to the present invention, as in claim 1, the leading end portion of the continuous film wound around the film supply roll is adsorbed by a temporary attachment member having a film adsorbing means through a swing roll of a film overhanging device. , Guided to the tip of the substrate transported by the transport means, and temporarily attached to the tip of the substrate by the tacking member, the substrate is transported while pressure-bonding the film to the substrate by a laminating roll, The film overhanging device includes a pair of swing levers in the film width direction supported so as to be swingable around a swing shaft parallel to the laminating roll, and both ends in the axial direction rotate in the vicinity of the tip of the swing lever. The swing roll supported freely, and the swing lever is biased so that the swing roll swings in a direction away from the laminating roll. In the film pasting apparatus having a cat, the swing shaft is a pair of separate swing shafts that are separated in the film width direction and each support a swing lever in a swingable manner. In addition, by providing play in the swing roll axial direction between the axial ends of the swing roll and a pair of swing levers supporting the swing roll, a link mechanism comprising the swing lever and the swing roll is provided with the swing mechanism. When the roll axis swings in the direction of the laminating roll in the vicinity of the tip of each of the pair of rocking levers, the roll axis is within a certain range and is tiltable with respect to the laminating roll. , Abutting the vicinity of the tip of the swinging lever to regulate its swinging, and independently adjusting the protrusion amount in the swinging lever direction at both ends in the axial direction of the swing roll By providing the ability pair of stopper device it is intended to achieve the above object.
[0010]
In the film sticking device, the stopper device is provided when the film is temporarily attached to the substrate by the temporary attachment member, and when the film is pressure-bonded to the substrate by the laminating roll. A stopper at the time of attachment when contacting the vicinity of the tip of the swing lever. One of the contacts may be retractable in a direction away from the swing lever.
[0011]
In the film tensioning device, the retractable stopper may be attached to the tip of the piston rod of the air cylinder device so that the protrusion amount can be adjusted.
[0012]
Furthermore, the stopper device in the film tensioning device has a support bar disposed adjacent to the laminating roll side of the swing lever, and the retractable stopper is formed on the support bar. The other stoppers may be arranged so as to protrude through the through-holes in the direction of the swing lever, and the other stoppers may be attached to the support bar so that the amount of protrusion can be adjusted.
[0013]
Further, a support bar in the film tensioning device is disposed adjacent to the separation rocking lever and extending to the other end side of the rocking lever beyond the rocking shaft. An upper limit stopper that abuts on the swing lever and restricts the swing of the swing lever by a certain angle in the pulling direction by the spring may be supported so that the protrusion amount can be adjusted.
[0014]
In this invention, the swing roll support mechanism has a flexible structure in which the central axis of the swing roll can be tilted with respect to the laminating roll, and a stopper with which the swing lever that supports the swing roll abuts the tilt angle. Since the adjustment is performed by the apparatus, the swing roll can be reliably made parallel to the laminating roll and the tip of the tacking member without increasing the rigidity and weight of the swing roll support mechanism.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0016]
First, a schematic configuration of a film pasting apparatus 10 according to the present invention will be described with reference to FIG.
[0017]
As shown in FIG. 2, the film 12 used by the film sticking apparatus 10 has a three-layer structure in which a photosensitive resin layer 12B and a cover film 12C are laminated on a translucent support film 12A. The supply roll 14 is continuously wound.
[0018]
The film 12 unwound from the film supply roll 14 passes through the guide roll 15 and then the cover film 12C is peeled off by the film separating member 16 so that the adhesive surface of the photosensitive resin layer 12B is exposed, and the swing roll 18 After that, the main vacuum plate 22 constituting a part of the temporary attachment member 20 is supplied. The peeled cover film 12 </ b> C is configured to be wound up by a winding roll 23.
[0019]
The film supply roll 14, the film separating member 16, the swing roll 18, the tacking member 20, the take-up roll 23, and the like are provided vertically symmetrically on the upper and lower sides in FIG. (The lower side is not shown), and after the film 12 is temporarily attached by the upper and lower temporary attachment members 20, the upper and lower pairs of laminating rolls 24A and 24B are used on the front surface (upper view) and the rear surface (lower surface) of the substrate 26 It is designed to be attached. In the following description, unless otherwise specified, only the upper device will be described and replaced with the description of the lower device.
[0020]
As shown in FIG. 3, the main vacuum plate 22 has a plurality of suction grooves 22A to which negative pressure is applied and suction holes (not shown) provided on the surface thereof, and the film 12 (hereinafter referred to as the cover film 12C is peeled off). Unless otherwise specified, the film 13) can be adsorbed, and is slidably supported by a guide rail 28 in the vertical direction in the figure, and is attached to the guide rail 28 by a drive device 30 such as an air cylinder or a servo motor. Along with, it is possible to be close to and away from the film attachment position, that is, close to and away from the substrate transport surface II.
[0021]
Further, the temporary attachment of the main vacuum plate 22 at the front end of the substrate transport surface II side is curved continuously from the surface of the main vacuum plate 22 and has a film suction groove (not shown) formed on the surface. The member main body 21 is connected. The leading end of the film temporary attachment member body 21 in the film feeding direction is made of an elastically deformable material such as rubber (including silicone rubber) having a cross-section in cross section, foamed or non-foamed polyurethane resin.
[0022]
The temporary attachment member 20 is movable between a position where the tip contacts the upper surface of the substrate 26 on the substrate transport surface II and a standby position indicated by a solid line in FIGS. However, between this standby position and the substrate transport surface II, along the feeding surface of the film 13, the leading end winding film holding member 34 and the rotary cutter 36 are provided from the temporary attachment member 20 side. Arranged in order.
[0023]
The rotary cutter 36 unwinds from the film supply roll 14 and trims the front end of the film 12 from which the cover film 12C has been peeled off so that the front end is parallel to the front end edge of the substrate 26. The film 13 is sequentially cut to a length corresponding to the substrate 26.
[0024]
The leading end winding film holding member 34 advances to the left in FIG. 4 when the film is cut by the rotary cutter 36, the leading end reaches the film passage surface, and after the cutting, the leading end winding member 34 moves backward. Further, the end face on the film passing surface side is provided with suction grooves and suction holes (both not shown) to which negative pressure is applied, and the film 13 is provided on the end face. The film 12 is sucked and held while the film is cut by the rotary cutter 36, and the leading edge of the trimmed film 12 is sucked and pulled rightward in FIG. The film attachment portion 20 of the temporary attachment member 20 is wound around the temporary attachment member main body 21, and the front end portion of the film is adsorbed by the film adsorption groove at the front end portion It is intended to.
[0025]
3 and 4 is provided on the temporary attachment member main body 21, and when the leading end winding film holding member 34 moves forward and backward toward the film 13, the temporary attachment member main body is brought into contact with the upper surface thereof by rolling. 2 shows a roller for maintaining a constant distance between 21 and the film winding member 34 for winding the front end.
[0026]
The rotary cutter 36 includes a substantially straight fixed blade 36A that is parallel to the film passage surface and disposed in the width direction of the film 13, and a member (a cylinder or a cylinder) whose rotation center axis is disposed substantially parallel to the fixed blade 36A. A rotating blade 36B having a structure in which a cutting blade is spirally wound around a cylindrical outer periphery of the cylinder), and by rotating the rotating blade 36B in contact with the fixed blade 36A on the film passage surface, The film 13 on the film passage surface is cut in the width direction at that position.
[0027]
Here, the fixed blade 36A is movable forward and backward in a direction perpendicular to the film passage surface with respect to the rotary blade 36B, and is unwound from the film supply roll 14 and cuts the film 12 from which the cover film 12C has been peeled off. It moves forward only to the position where it contacts the rotary blade 36B, and is normally in a retracted position away from the rotary blade 36B (drive mechanism not shown).
[0028]
In FIG. 4, reference numeral 40 denotes a driving roller in the substrate transport mechanism, 42 denotes a follower roller, 44 denotes a substrate pressing member, and 46 denotes a substrate front end position detecting light sensor.
[0029]
The substrate pressing member 44 includes a substrate pressing roller 44A and a substrate pressing roller air cylinder 44B that moves the substrate pressing roller 44A up and down.
[0030]
The mutual relationship among the laminating rolls 24A and 24B, the driving roller 40, the substrate pressing member 44, and the substrate tip position detecting optical sensor 46 is as follows.
[0031]
The front end position detection optical sensor 46 provided in the vicinity of the substrate transfer surface II detects the front end of the first substrate 26 that is transferred from left to right in FIG. When the substrate 26 is transported to the position, the rotation of the driving roller 40 is stopped. At the same time, the substrate pressing roller 44A is driven by the substrate pressing roller air cylinder 44B so as to press the substrate 26 by the substrate pressing member 44.
[0032]
The movement of the substrate 26 is surely stopped by the substrate pressing roller 44A, and the substrate 26 does not move and the film 13 does not move even when the film temporary attachment member main body 21 which is the tip of the temporary attachment member 20 contacts the substrate 26. The temporary attachment is surely performed.
[0033]
The holding of the substrate 26 by the substrate pressing roller 44A is normally performed until the laminating rolls 24A and 24B come into contact with the substrate 26, and is synchronized with the contact timing of the laminating rolls 24A and 24B. The air cylinder 44B is released.
[0034]
The swing roll 18 constitutes a part of the film overhanging device 52 and controls the tension of the film 13 between the film supply roll 14 and the tacking member 20 or the laminating rolls 24A and 24B. Yes.
[0035]
As shown in FIGS. 5 and 6 (FIG. 5 shows only a half of FIG. 6), the film overhanging device 52 has a pair of separation swings on the same axis parallel to the laminating rolls 24A and 24B. A pair of swing levers 56A, 56B in the film width direction supported so as to be swingable in a vertical plane around the moving shafts 54A, 54B (see FIG. 6), and the tips of the swing levers 56A, 56B (in FIG. 5) The swing roll 18 that is rotatably supported at both ends in the axial direction at the left end) and the swing levers 56A and 56B so that the swing roll 18 swings away from the laminating rolls 24A and 24B. And springs 58 and 58 for biasing the other end.
[0036]
The pair of separation oscillating shafts 54A, 54B are separated in the film width direction, each supporting one oscillating lever 56A, 56B, and both ends of the swing roll 18 in the axial direction and the pair of pairs supporting the same. By providing play in the swing roll axial direction between the swing levers 56A and 56B, the link mechanism 60 including the swing levers 56A and 56B and the swing roll 18 has a center axis of the swing roll 18 within a certain range. Thus, the flexible structure is tiltable with respect to the laminating rolls 24A and 24B.
[0037]
Near the tip of each of the pair of swing levers 56A, 56B, when the swing roll 18 swings in the direction of the laminating rolls 24A, 24B, it abuts against the tips of the swing levers 56A, 56B and swings. Are provided symmetrically in the film width direction.
[0038]
The stopper device 62A includes a temporary attachment stopper 63A and a permanent attachment stopper 64A, and the stopper device 62B includes a temporary attachment stopper 63B and a permanent attachment stopper 64B.
[0039]
As shown in FIG. 6, the pair of separated swing shafts 54A and 54B swing the swing levers 56A and 56B to a pair of support columns 57 integral with a device frame (not shown) via a bearing 57A. It is fixed freely.
[0040]
The book-attaching stoppers 64A and 64B are attached to support bars 66 and 66 respectively fixed to the pair of support pillars 57 at positions below the pair of swing levers 56A and 56B in the film width direction. .
[0041]
As shown in FIG. 1 and FIG. 5, the support bar 66 is bent upward and comes into contact when the swing levers 56A, 56B swing more than a certain angle in the laminating rolls 24A, 24B direction. In addition, when the rocker swings in the opposite direction by a certain angle or more, the other end side comes into contact with an upper limit stopper 70 provided in the vicinity of the opposite end portion of the support bar 66.
[0042]
The book-stopping stoppers 64A and 64B are composed of bolt-shaped members that are screwed into the leading ends (left ends in FIG. 5) of the support bar 66 from the laminating rolls 24A and 24B side so that the protruding amount of the leading ends can be adjusted. Has been.
[0043]
The temporary attachment stoppers 63A and 63B are formed by inserting through holes 67 of the support bar 66 adjacent to the support post 57 side of the permanent attachment stoppers 64A and 64B into laminating rolls 24A and 24B. A bolt-shaped member that is disposed through from the side, and is screwed and fixed to the operating rod 68A of the air cylinder 68. The amount of protrusion in the direction of the swing levers 56A and 56B depends on the amount of screwing to the operating rod 68A. Is to be adjusted.
[0044]
Reference numeral 63C in the figure denotes a lock nut for fixing the positions of the temporary attachment stoppers 63A and 63B with respect to the operating rod 68A, and reference numeral 64C denotes a fixed attachment position of the stoppers 64A and 64B with respect to the support bar 66. Each lock nut is shown.
[0045]
The upper limit stopper 70 is a bolt-like member that is screwed onto the end of the support bar 66 opposite to the temporary attachment stoppers 63A and 63B, and the amount of screwing into the support bar 66 Is adjusted so that the contact point of the swing levers 56A and 56B to the rear end side is adjusted.
[0046]
This contact restricts the swing angle of the swing roll 18 in the direction away from the laminating rolls 24A and 24B, and when the film 12 is not wound around the swing roll 18, the swing levers 56A and 56B. Is largely swung by the spring 58 and is prevented from colliding with the film separating member 16 or the like. The screwing amount of the upper limit stopper 70 into the support bar 66 is fixed by tightening the lock nut 70A.
[0047]
As shown in FIG. 6 in an enlarged manner, the swing roll 18 is rotatably supported via a bearing 18B by a shaft 18A penetrating the tips of a pair of swing levers 56A and 56B in the film width direction. Has been. A collar 18C is fitted between the longitudinal ends of the swing roll 18 and the swing levers 56A and 56B. Between the collar 18C and the swing levers 56A and 56B and both ends of the swing roll 18 in the axial direction. A gap 19 is formed in the gap.
[0048]
Further, the tensile force of the spring 58 is determined by the tensile force of the laminating rolls 24A and 24B in a state where the film 12 is pressure-bonded to the substrate 26 by the laminating rolls 24A and 24B (mainly attached state). When the swing roll 18 is pressed against the stoppers 64A and 64B at the time of permanent attachment via the swing levers 56A and 56B, and when the film 12 is not pressed by the laminating rolls 24A and 24B, this occurs when the film 12 is loose. 1 and 5, the swing levers 56A and 56B can be urged clockwise.
[0049]
As shown in FIG. 1, when the swing lever 56A comes into contact with the stopper 64A when the swing lever 56A is in contact with the other end position on the opposite side of the swing roll 18 of the swing lever 56A in the film extending device 52. A film return sensor 71 for detecting this is provided.
[0050]
The film return sensor 71 is an optical sensor whose optical path is blocked by the other end when the swing lever 56A comes in contact with the book-stopping stopper 64A counterclockwise.
[0051]
In FIG. 4, reference numeral S <b> 1 is a width adjusting start position sensor, S <b> 2 is a substrate rear end detection sensor, S <b> 3 is a substrate passage detection sensor, and 72 is opposite to the film winding member 34 for winding the leading end. The air blow pipes that are arranged on the side and for blowing a compressed air flow toward the temporary attachment member main body 21 are shown.
[0052]
Further, reference numeral 74 in FIG. 4 denotes a film guide roll disposed close to the downstream side of the rotary cutter 36, and 76 denotes an air blow pipe. The film guide roll 74 is supported by the same member (not shown) together with the leading end wrapping film holding member 34 and the fixing 36, advances and retreats with respect to the film passage surface in synchronization, and the temporary attachment member 20 4 is retracted to the right in FIG.
[0053]
The air blow pipe 76 blows out compressed air in the direction of the suction bar 78 for the film rear end provided on the laminating rolls 24 </ b> A and 24 </ b> B, and the rear end of the film 13 cut by the rotary cutter 36 is sucked to the suction bar 78. It is something that flutters in the direction. The operation timing of the suction lever 78 is the same as that disclosed in Japanese Patent Laid-Open No. 5-169548.
[0054]
Reference numeral 80 in FIG. 4 indicates a pair of free rollers disposed close to the lower side of the substrate transport surface II between the lower laminating roll 24B and the driving roller 40 immediately before the lower laminating roll 24B. The free roller 80 is moved in the substrate feeding direction by an air cylinder (not shown) when the substrate tip position detection light sensor 46 detects the tip of the substrate 26, and the tip of the substrate 26 is moved between the laminating rolls 24A and 24B. It is supposed to lead. When the film is pasted on the substrate 26, the original position is restored. The operation timing and the like are the same as those disclosed in Japanese Patent Publication No. 3-27334.
[0055]
Next, the signal path of the control system of the film pasting apparatus will be described with reference to FIG.
[0056]
In this control system, together with the sensors 46, 71 and S1 to S3, the detection sensors (not shown) at the front and rear ends of the cylinders follow the sensors of the film winding diameter, and the control device 50 controls the solenoids for the cylinders and the motors. The control signal is output. It also has a counter and timer function.
[0057]
The control device 50 is configured to control the film pasting device 10 according to a predetermined procedure. The control device 50 can be configured by, for example, programmable control or a relay sequence circuit.
[0058]
Next, the operation of the film pasting apparatus 10 will be described.
[0059]
First, the laminating rolls 24A and 24B are retracted positions shown by solid lines in FIG. 4, the leading end winding film holding member 34 is at a position where the leading end surface is on the film passing surface, and the rotary blade 36B of the rotary cutter 36 is the film passing surface. The film 12 is pulled out from the supply roller 14, the cover film 12 </ b> C is peeled off from the tip, and the film 13 is wound around the take-up roll 23 while the film 13 is wound around the temporary member 20 and the tip. The film holding member 34 is pulled down along the film passing surface on the left side of the drawing and passed between the fixed blade 36A and the rotary blade 36B of the rotary cutter 36.
[0060]
Next, the film 13 is adsorbed by the tacking member 20 to which negative pressure is applied, and is advanced by the film holding surface 34 to which the negative pressure is already applied while the film 13 is advanced to the film passing surface position. 13 is adsorbed.
[0061]
In this state, the rotary blade 36A is advanced to the film passage surface and then rotated, whereby the film 13 is cut on the film passage surface and the leading ends thereof are aligned. The cut film 13 on the tip side of the rotary cutter 36 is discarded.
[0062]
Next, the leading end winding film holding member 34 is moved to the right in FIG. 4 with the leading end portion of the film 13 adsorbed to the leading end surface thereof, and is supported by the same member together with the leading end winding film holding member 34. The fixed blade 36A is separated from the rotary blade 36B.
[0063]
At this time, when a negative pressure is applied in advance to the film adsorption groove at the tip of the temporary attachment member main body 21 and the tip winding film holding member 34 moves in the right direction in the drawing, the adsorbed film 13 The leading end is wound along the leading end of the temporary attachment member main body 21 and is adsorbed by the negative pressure of the film adsorbing groove and the suction hole, and is separated from the leading end winding film holding member 34.
[0064]
When the leading end of the film 13 is wound around the leading end of the temporary attachment member main body 21, the compressed air flow blown out from the air blow pipe 72 blows the leading end of the film 13 toward the leading end. The film front end separated from the film holding member 34 is surely adsorbed to the front end of the tacking member main body 21 without drooping or bending.
[0065]
The substrate 26 is transported by the substrate transport mechanism, and is stopped by stopping the rotation of the driving roller 40 at the temporary attachment position.
[0066]
Next, with the leading end portion of the film 13 being adsorbed to the leading end portion of the tacking member main body 21, the driving device 30 moves the tacking member 20 along the guide rail 28 so that the leading end portion passes through the leading end portion of the film 12. Then, the head is lowered until it comes into contact with the top surface of the front end position of the top substrate 26 stopped at the temporary attachment position. In synchronization with this, the lower temporary attachment member 20 is also raised.
[0067]
Thereby, the front-end | tip part of the film 13 is temporarily attached to the front-end | tip surface and back surface of the head board | substrate 26, and the temporary attachment member 20 contains the temporary attachment member main body 21, and a negative pressure is cancelled | released.
[0068]
Both the temporary attachment stoppers 63A and 63B and the full attachment stoppers 64A and 64B have a small protrusion amount in the direction of the swing levers 56A and 56B in advance.
[0069]
Next, when the negative pressure of the temporary attachment member 20 is released, the temporary attachment stoppers 63A and 63B are projected by the air cylinder 68, and in this protruding state, the temporary attachment stoppers 63A and 63B The amount of screwing of the cylinder 68 into the actuating rod 68A is adjusted, and the swing levers 56A and 56B are pushed, so that the swing roll 18 supported on the ends of the swing levers 56A and 56B The distance from the tip is adjusted until the film 13 is not wrinkled.
[0070]
When the film 13 is pulled with an appropriate tension by the swing roll 18 and no wrinkle is generated, the amount of protrusion of the temporary stoppers 63A and 63B is fixed by the lock nut 63C.
[0071]
At this time, the protruding amounts of the temporary attachment stoppers 63A and 63B at the both ends in the longitudinal direction of the swing roll 18 are different, and therefore the swing roll 18 may be twisted with respect to a straight line passing through the separation swing shafts 54A and 54B. However, since the swing roll 18 and the swing levers 56A and 56B constitute the flexible link mechanism 60 centering on the separate swing shafts 54A and 54B, the swing of the swing roll 18 is allowed.
[0072]
In this state, after the setting of the temporary attachment stoppers 63A and 63B by the lock nut 63C is finished, the temporary attachment stoppers 63A and 63B are pulled in by the air cylinder 68, and the temporary attachment member 20 is raised at the same time. The tip of the film is separated from the tip of the film 13. Thereby, the temporary setting of the film 13 is completed.
[0073]
The laminating rolls 24A and 24B are driven from the solid line position in FIG. 4 to the position of the two-dot chain line with respect to the front end portion 26A in a state where the film 13 is temporarily attached, and press the front end of the film 13 against the substrate 26. Note that the laminating rolls 24A and 24B are always kept rotated during standby and indicated by a two-dot chain line in FIG.
[0074]
Next, the stoppers 64A and 64B at the time of bookbinding project from the film 13 in which the tip is sandwiched between the laminating rolls 24A and 24B and the substrate 26, and the screwing amount to the support bar 66 is adjusted. Thus, the swing roll 18 pulls the film 13.
[0075]
When the film 13 is not wrinkled between the laminating rolls 24A and 24B by the swing roll 18 and is stretched at an optimum tension, the lock stoppers 64A and 64B are fixed by the lock nut 64C.
[0076]
As described above, since the swing roll 18 constitutes a part of the flexible link mechanism 60, even if the protrusion amounts in the film width direction of the stoppers 64A and 64B are different, they are absorbed. Can be twisted into.
[0077]
The protruding amount of the book-attached stoppers 64A and 64B in the set state is such that the position of the swing roll 18 in the set state of the temporary-attached stoppers 63A and 63B projected by the air cylinder 68 is the book-attached stopper 64A, It is set apart from the laminating rolls 24A and 24B than when the swing levers 56A and 56B are in contact with 64B.
[0078]
In this state, the substrate pressing roller air cylinder 44B is released. Next, the laminating rolls 24A and 24B are rotated so as to drive the substrate 26 in the right direction from the left side of FIG. 1 in synchronization with the driving roller 40 of the conveying device of the substrate 26, and the film 13 is rotated while rotating. Crimp to both sides of 26.
[0079]
Here, as described above, if the film 13 and the substrate 26 become defective as a result of use in adjusting the temporary attachment stoppers 63A and 63B and the full attachment stoppers 64A and 64B, the substrate stopper device A dummy may be used as the adjustment substrate. The film 13 at that time is discarded.
[0080]
The laminating rolls 24A and 24B are always in a rotating state, and the film 13 from which the cover film 12C has been peeled off is intermittently transferred to the substrate 26, and is cut by the rotary cutter 36 with the above-mentioned dimensions. After being temporarily attached by the attaching member 20, it is pressure-bonded (mainly attached) by the laminating rolls 24 </ b> A and 24 </ b> B.
[0081]
In these film pasting processes, the tacking stoppers 63A and 63B are projected by the air cylinder 68 for each tacking operation corresponding to each substrate 26, whereby the swing roll 18 is not wrinkled on the film 13, and Restrict the position to obtain the optimum tension.
[0082]
Further, at the time of main attachment, the temporary attachment stoppers 63A and 63B are pulled in by the air cylinder 68 so that the main attachment stoppers 64A and 64B come into contact with the swing levers 56A and 56B.
[0083]
Adjustment of the protrusion amounts of the temporary attachment stoppers 63A and 63B and the full attachment stoppers 64A and 64B is performed every time the tip of the temporary attachment member 20 and / or the laminating rolls 24A and 24B are changed.
[0084]
In the example of the above-described embodiment, the final attachment stoppers 64A and 64B are provided at the front end side positions of the swing levers 56A and 56B relative to the temporary attachment stoppers 63A and 63B. It is not limited to the example of this form, You may make it position temporary stopper 63A, 63B in the front end side.
[0085]
However, when the temporary attachment stoppers 63A and 63B are projected, they must be set so as to contact the swing levers 56A and 56B before the permanent attachment stoppers 64A and 64B.
[0086]
Further, the stoppers 63A and 63B for temporary attachment and the stoppers 64A and 64B for permanent attachment are bolt-like members, and the protruding amount is adjusted by the screwing amount, but the present invention is not limited to this. Alternatively, other means such as a cam-like member may be used.
[0087]
The film 12 used in the film pasting apparatus 10 is formed by laminating a photosensitive resin layer 12B on a translucent support film 12A and covering it with a cover film 12C. However, the present invention is not limited to this. For example, when a photosensitive resin is applied to the surface of the substrate 26 in advance and is applied so as to cover it with a film, or an adhesive other than the photosensitive resin is applied to the substrate or the film side. The present invention can be applied to any case where the film is applied to the substrate and the film is stuck to the substrate in this state, and further, the film is pressure-bonded to the substrate without using a photosensitive resin layer or an adhesive. is there.
[0088]
Furthermore, in the example of each of the above embodiments, the film 13 is cut for each substrate according to the length of the substrate 26 by the rotary cutter 36, but the present invention is not limited to this. While continuously transporting the substrate at regular intervals by the transport means, the film is supplied along the front and back surfaces of the substrate and passed directly between the laminating rolls, and the film is continuously cut without being cut halfway. The so-called continuous tension is also applied to the case where the first substrate is temporarily attached to the first substrate by a temporary attachment member.
[0089]
【The invention's effect】
Since the present invention is configured as described above, the position of the swing roll is optimally controlled at the time of temporary attachment and main attachment of the film without significantly increasing the rigidity of the swing roll or the support mechanism. It has the outstanding effect that wrinkle generation of the film can be prevented.
[Brief description of the drawings]
FIG. 1 is a schematic side view showing a main part of a film pasting apparatus according to an example of an embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view showing a state of a film attached by the film attaching apparatus before peeling a cover film.
FIG. 3 is an enlarged perspective view showing a temporary attachment member in the film sticking apparatus.
FIG. 4 is a schematic side view showing a relationship between a tacking member, a substrate, and a laminating roll in the film pasting apparatus.
FIG. 5 is a perspective view further enlarging the vicinity of the film stretching device in the film pasting device.
FIG. 6 is a cross-sectional view showing a link mechanism including a swing roll in the apparatus.
FIG. 7 is a block diagram showing a control system in the film pasting apparatus.
[Explanation of symbols]
10 ... Film sticking device
12, 13 ... Film
12A ... Translucent support film
12B ... photosensitive resin layer
12C ... cover film
14 ... Supply roll
16 ... Film separation member
18 ... swing roll
18C ... Color
19 ... Gap
20 ... Temporary member
21 ... Film temporary attachment body
22 ... Main vacuum plate
24A, 24B ... Laminating roll
26 ... Board
36 ... Rotary cutter
50 ... Control device
52. Film overhanging device
54A, 54B ... Separation rocking shaft
56A, 56B ... Swing lever
57A ... Bearing
58 ... Spring
60 ... Link mechanism
62A, 62B ... stopper device
63A, 63B ... Temporary stopper
64A, 64B ... Stopper with book
66 ... Support bar
67 ... Through hole
68 ... Air cylinder
70: Upper limit stopper
II ... Board transfer surface

Claims (5)

The leading edge of the substrate that is conveyed by the conveying means by adsorbing the leading edge of the continuous film wound around the film supply roll through the swing roll of the film overhanging device and by the temporary member having the film adsorbing means The film is temporarily attached to the tip of the substrate by the tacking member, and then the substrate is transported while the film is pressure-bonded to the substrate by a laminating roll, and the film extending device includes the laminating roll and the laminating roll. A pair of swing levers in the film width direction supported so as to be swingable about a parallel swing shaft, the swing roll having both ends in the axial direction rotatably supported near the tip of the swing lever, And a spring that biases the swing lever so that the swing roll swings away from the laminating roll. In the device,
The swing shaft is separated in the film width direction, and each of the swing shafts is a pair of separate swing shafts that swingably support one swing lever, and both ends of the swing roll in the axial direction are supported. By providing play in the swing roll axial direction between the pair of swing levers, the link mechanism comprising the swing lever and the swing roll can be connected to the laminating roll with a center axis of the swing roll within a certain range. The swing roll swings in the direction of the laminating roll in the vicinity of the tip of each of the pair of swing levers. It is characterized by a pair of stopper devices that regulate the movement and can independently adjust the protruding amount in the swing lever direction at both ends of the swing roll in the axial direction. Film applying apparatus. 2. The stopper device according to claim 1, wherein, when the film is temporarily attached by the temporary attachment member, the temporary attachment stopper that is in contact with the vicinity of the tip of the swing lever, and the film is pressed against the substrate by the laminating roll, A fixed stopper that comes into contact with the vicinity of the tip of the swing lever. A film tensioning device characterized in that one of the abutting members is retractable in a direction away from the swing lever. 3. The film tensioning device according to claim 2, wherein the retractable stopper is attached to the tip of the piston rod of the air cylinder device so that the amount of protrusion can be adjusted. 4. The stopper device according to claim 2, wherein the stopper device has a support bar disposed adjacent to the laminating roll side of the swing lever, and the retractable stopper is formed on the support bar. A film tensioning device, wherein the film sticking device is disposed so as to protrude through the through hole in the direction of the swing lever, and the other stopper is attached to the support bar so that the amount of protrusion is adjustable. 5. The support bar according to claim 4, wherein the support bar is disposed adjacent to the swing lever so as to extend to the other end side of the swing lever beyond the separation swing shaft, and the swing bar is disposed on the other end portion. A film tensioning device, characterized in that an upper limit stopper that abuts on a moving lever and regulates the swinging of the swinging lever beyond a certain angle in the pulling direction by the spring is supported in an adjustable manner.

Images