JP4010613B2 - Film cutting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a film cutting apparatus suitable for use in a film pasting apparatus for pasting a film on the surface of a substrate exemplified by a printed wiring board substrate, a liquid crystal panel glass substrate, and a plasma display substrate.
[0002]
[Prior art]
For example, as shown in FIG. 5, the film pasting apparatus as described above includes a laminate film 12 formed by laminating a photosensitive resin layer 12B and a cover film 12C on a translucent support film 12A. After the cover film 12C is peeled off, the photosensitive resin layer 12B is brought into close contact with the substrate, and is sent between a pair of laminating rolls for thermocompression bonding.
[0003]
As the method of pressure bonding, the laminated film 12 is cut in advance according to the length of the substrate and then thermocompression bonded, and the substrate is sequentially transported at regular intervals without being cut along the film. There is a continuous tension type that is supplied in a superposed manner and is fed between a pair of laminating rolls that rotate both of them and thermocompression bonded.
[0004]
In a continuous tension type film tensioning device, the laminate film is unwound from the film supply roll, and the cover film is continuously peeled off and fed in the direction of the laminating roll. The substrate on which the laminate film is adhered Is intermittently conveyed at regular intervals, so that the photosensitive resin layer remains exposed at the portion between the substrates.
[0005]
Since this photosensitive resin layer is sticky, after the laminate film stuck to the substrate is cut between the substrates, the portion protruding from the end face of the substrate sticks to another substrate or laminate film. There was a problem that sometimes.
[0006]
In order to solve this problem, a film in which the laminate film is continuously pasted to the substrate in a state where the cover film of the corresponding portion is left between the substrates and the cover film of the other portion is peeled off. A pasting device has been proposed.
[0007]
As described above, if the cover film is left in the corresponding part between the substrates, the photosensitive resin layer in the part between the substrates is covered with the remaining cover film in a state of being attached to the substrate. There is no sticking to the substrate.
[0008]
As described above, when leaving the cover film corresponding to the portion between the substrates, on the upstream side of the cover film peeling apparatus, the cover film is cut in the film width direction by the half cutter, leaving the translucent support film. Thus, two cutting lines are formed at a corresponding interval between the substrates, the cover film in the portion between the cutting lines is left, and the others are peeled off.
[0009]
The cutting with the half cutter is preferably a so-called running cut (flying cut) in which the laminated film is cut in a laminating roll direction while the half cutter is moved at a constant speed while being synchronized.
[0010]
Therefore, it is necessary to reciprocate a cutting blade in the half cutter, for example, a disk cutter and a cutter table serving as a base of the laminated film pressed by the blade edge of the disk cutter in the film feeding direction.
[0011]
[Problems to be solved by the invention]
As described above, the cutting blade and the cutter base constituting the half cutter are caused to travel in synchronization with the laminate film, and are reciprocated so as to return to the original position after the half cut. It is desirable that the film support surface is as close as possible to the traveling surface of the laminate film.
[0012]
That is, when the film support surface of the cutter table is farther than the travel surface of the laminate film, the laminate film is pushed to the film support surface with a cutting blade and then cut, so the film path is changed, It becomes difficult to control the alignment between the cut portion and the substrate by the half cutter, and further, there arises a problem that the tension of the laminate film is different between half cut and non-half cut.
[0013]
Therefore, it is preferable that the film support surface of the cutter table be as close as possible to the film running surface, but in this case, when the cutter table is stopped or when returning to the original position after half-cutting, Friction occurs between the laminate film and the film support surface of the cutter table due to the relative motion between them, and the surface of the translucent support film may be damaged.
[0014]
The present invention has been made in view of the above problems, and even when the film support surface of the cutter table is disposed close to the film running surface, there is friction between the film and the film receiving surface of the cutter table. It is an object of the present invention to provide a film cutting apparatus that does not generate the film.
[0015]
[Means for Solving the Problems]
The present invention is as follows. , Cut A cutter formed with a blade;
Said A cutter support device for supporting the cutter;
A cross section at a substantially right angle with respect to the surface including the cutter, and a cutter table for supporting the film on a support plane along a substantially horizontal film longitudinal feed surface;
The cutter support device is driven in the film width direction along the support plane in parallel with the plane including the cutter while pressing the cutting blade of the cutter against the film on the cutter table, and the thickness of the film A cutter driving device for cutting at least part of the direction;
During film cutting by the cutter, Said cutter, Said Cutter support device, Said Cutter stand, and The above Cutter drive device in the same direction in synchronization with the longitudinal feed of the film While driving, after the film is cut by the cutter, the feeding direction of the film and In the opposite direction Drive A cutter synchronous drive device,
On the support plane of the cutter table, Said Cutter stand Is driven in the opposite direction While blowing gas on the film Said With cutter stand With the film The above-described object is achieved by a film cutting apparatus provided with a gas blowing means for suppressing the contact of the film.
[0016]
Further, as in claim 2, the gas blowing broth A plurality of gas blowing holes formed in the support plane; and Said Comprising a gas supply source for supplying compressed gas to the gas blowing hole via the control valve;
The control valve can be selectively connected to the gas blowing hole selectively to the gas supply source or the negative pressure supply source. The gas blowing hole is connected to the negative pressure supply source while the cutter, the cutter support device, the cutter stand, and the cutter driving device are driven in a direction synchronized with the film feeding direction. May be.
[0017]
In this invention, when the cutter table and the film move relative to each other, that is, the process in which the half cutter returns to the original position after the half cut, other than the step of half cutting the film by the cutter, or the film passes before the half cut. In the process, gas is blown onto the film from the support plane of the cutter table so that the film does not come into contact with the support plane to prevent damage to the film.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.
[0019]
FIG. 1 shows a film pasting apparatus 10 provided with a half cutter which is a cutting apparatus according to the present invention.
[0020]
The film sticking device 10 includes a substrate transport device 14 that sequentially transports a plurality of substrates 16 at regular intervals along the substrate transport surface 14A, a film roll 18 that uses the laminate film 12 as described above as a roll, Between this film roll 18 and a pair of laminating rolls 20A and 20B, from the film roll 18 side, half cutter 22, cover film peeling device 24, suction roll 26, free rotating guide rolls 28A and 28B, film guide roll 52 Are arranged in this order, the cover film 12C of the laminate film 12 unwound from the film roll 18 is cut at a predetermined position by the half cutter 22, and then the cover film peeling device 24 is used to cut the cover film 12C. Continuously cover the cover film 12C from the cutting line. With the photosensitive resin layer 12B exposed, the photosensitive resin layer 12B is exposed between the pair of laminating rolls 20A and 20B. Here, the photosensitive material exposed to the corresponding portion of the substrate 16 conveyed by the substrate conveying device 14 is exposed. The resin layer 12B overlaps and is thermocompression bonded by the pair of laminating rolls 20A and 20B.
[0021]
Here, the translucent support film 12A in the laminate film 12 is preferably provided with antistatic properties by kneading an antistatic agent in the film forming process or coating after film forming. .
[0022]
The pair of laminating rolls 20A, 20B is configured by providing an elastic material such as silicone rubber or silicone rubber whose surface is coated with a non-adhesive film such as a fluororesin on the outer periphery of a metal roll, A heater (not shown) is incorporated, and the surface is heated to 100 ° C. to 150 ° C. prior to the start of operation of the apparatus, and is always rotated during operation.
[0023]
On the exit side of the laminating rolls 20A and 20B, a first nip roll 30, a full cutter 32, and a second nip roll 34 are arranged in this order from the laminating rolls 20A and 20B in the substrate transport direction.
[0024]
A pair of upper and lower free rolls 36A and 36B are disposed in the vicinity of the exit side of the film roll 18, and the upper end of the upper free roll 36A and the upper end of the suction roll 26 are positioned on substantially the same horizontal plane. Yes.
[0025]
Further, the suction roll 26 has a plurality of suction holes (not shown) formed on the surface thereof, and adsorbs the wound laminate film 12 by a negative pressure applied thereto, and the free roll 36A, A predetermined tension can be applied to the laminate film 12 between 36B and between the laminating rolls 20A and 20B.
[0026]
The laminate film 12 is unwound on the film roll 18 with a torque in the film winding direction applied by the torque motor 18A, so that a tensile force is generated in the laminate film 12. .
[0027]
A rotary encoder 38 is connected to the free roll 36A, and a pulse corresponding to the number of rotations of the free roll 36A when the laminated film 12 is fed in the direction of the suction roll 26 is sent to the control device 40 (see FIG. 2). It is designed to output.
[0028]
As shown in FIGS. 3 and 4, the half cutter 22 includes a support plane 42 </ b> A that substantially coincides with the feeding surface of the laminate film 12 that is fed horizontally between the suction roll 26 and the free roll 36 </ b> A. A cutter table 42 and a pair of disk cutters 44A and 44B that can reciprocate in the film width direction along the upper surface of the cutter table 42 are configured. The cutter table 42 and the disk cutters 44A and 44B are stacked. The disc cutters 44A and 44B are moved in the film width direction while moving in the feed direction at the same speed as the body film 12, so that the cover film 12C on the upper surface side in the figure of the laminate film 12 is replaced with a translucent support film. It is made to cut | disconnect leaving 12A.
[0029]
The pair of disk cutters 44A, 44B is provided to be supported by the cutter support device 45 so as to be in a parallel vertical plane separated in the feeding direction of the laminate film 12, and the distance between the two is shown in FIG. As shown, the distance is slightly larger than the distance between the rear end of the preceding substrate 16 and the front end of the succeeding substrate 16 that are transported on the substrate transport surface 14A.
[0030]
Each of the disk cutters 44A and 44B is formed by forming a cutting edge on the outer periphery of a disk-shaped member, and the cutting edge for the laminated film 12 on the support plane 42A perpendicular to the vertical plane including the disk. The cover film 12C is cut in the width direction while being fixed in a non-rotating state.
[0031]
The cutter base 42 is disposed long in the film width direction, and rod-shaped cutter receivers 45A and 45B made of, for example, synthetic resin are embedded in the support plane 42A so as to receive the cutting edges of the disk cutters 44A and 44B. Has been.
[0032]
As shown in FIG. 6, the support plane 42 </ b> A in the cutter base 42 is within a range in which the laminate film 12 passes except for the cutter receivers 45 </ b> A and 45 </ b> B from below with respect to the laminate film 12. For example, a large number of gas blowing holes 43 for blowing compressed gas made of compressed air are formed.
[0033]
A gas supply source 43B and a negative pressure source 43C are selectively connected to the gas blowing hole 43 via a switching valve 43A. The switching valve 43A is placed on the negative pressure source 43C side by the control device 40 during the cutting of the cover film 12C by the half cutter 22, and on the way to return to the original position after the cutting of the half cutter 22 is completed or for half cutting. It is connected to the gas supply source 43B side.
[0034]
Here, the pressure when the compressed gas is blown out from the gas blowing hole 43 may be a slight blowing amount and pressure that can prevent the laminated film 12 from coming into contact with the support plane 42A.
[0035]
Moreover, the both end corner | angular parts 42B and 42C of the laminated body film running direction of the said cutter base 42 are chamfered in the inclined surface or the circular arc shape.
[0036]
The reciprocating motion of the cutter table 42 and the disc cutters 44A and 44B in the laminate film feeding direction is performed by a rack and pinion mechanism 46, and the reciprocating motion of the disc cutters 44A and 44B in the film width direction is performed by a uniaxial robot 48, respectively. The rack and pinion mechanism 46 and the uniaxial robot 48 are controlled by the control device 40.
[0037]
The rack and pinion mechanism 46 includes a rack 46A attached to a traveling platform 49 integral with the cutter table 42, a rail 46B that supports the traveling platform 49 in a film feeding direction and horizontally reciprocatingly, and the rack 46A. , And a pinion 46C that drives the rail 46B along the rail 46B.
[0038]
The uniaxial robot 48 is disposed on the traveling platform 49, and the uniaxial robot 48 slides on the rail 48A in the film width direction fixed horizontally on the traveling platform 49, and on the rail 48A. The disk cutter 44A includes a moving member 48B, a support arm 48C supported by the moving member 48B and supporting the cutter support device 45, and a ball screw mechanism (not shown) for driving the moving member 48B. , 44B is reciprocated in the film width direction.
[0039]
Here, the disk cutters 44A and 44B will be described in more detail. Since these are structures that are horizontally reversed in FIG. 6, unless otherwise specified, the disk cutter 44A will be described and the disk cutter 44B will be described. It shall replace with description of.
[0040]
As shown in an enlarged view in FIG. 6, the disk cutter 44 </ b> A is attached to a horizontal rotation shaft 68 that is rotatably supported by the cutter support device 45 so as to be integrally rotatable therewith.
[0041]
The cutter support device 45 has a carriage portion 76 supported by the support arm 48C and a support hole 78A that is supported at the lower side of the carriage portion 76 and is long in the center and parallel to the traveling direction of the laminated film 12. A holding member 78, a hollow shaft 80 that is held in the support hole 78 </ b> A of the holding member 78 in a circumferential direction variable, and a shaft hole 80 </ b> A inside the hollow shaft 80 are provided.
[0042]
The rotating shaft 68 is rotatably supported coaxially with the shaft hole 80A in the shaft hole 80A of the hollow shaft 80 via a one-way bearing 80B and a normal bearing 80C.
[0043]
Reference numeral 78B in FIG. 6 denotes a set screw that is screwed into the holding member 78 and fixes the circumferential position of the hollow shaft 80 held in the support hole 78A.
[0044]
An eccentric ring 81 is fitted to the end of the hollow shaft 80 protruding from the support hole 78A. A pressing roller 84 is rotatably attached to the hollow shaft 80 via a bearing 82 on the outer side of the eccentric ring 81 at the end of the hollow shaft 80 on the disk cutter 44A side.
[0045]
The pressing roller 84 presses the laminated film 12 against the cutter receiver 45A adjacent to the cutting position when the disk cutter 44A cuts the laminated film 12 at a position adjacent to the disk cutter 44A. is there.
[0046]
Accordingly, when the hollow shaft 80 is rotated in the support hole 78A of the holding member, the position of the eccentric ring 81 and the pressure roller 84 supported by the eccentric ring 81 in the vertical direction changes with respect to the rail 74 and the cutter base 42. Will be. Further, the position of the disc cutter 44A supported by the rotating shaft 68 with respect to the cutter table 42 is naturally unchanged.
[0047]
The rotating shaft 68 protrudes from the shaft hole 80A of the hollow shaft 80 in the direction opposite to the disk cutter 44A, and a ratchet wheel 86 is coaxially attached to the protruding end portion thereof (see FIG. 7).
[0048]
Further, as shown in FIG. 8, the ratchet wheel 86 is provided with a ratchet pawl 88 for engaging with the ratchet wheel 86 and feeding it at a predetermined angle only when it is swung clockwise. Yes.
[0049]
The ratchet pawl 88 is an outer position of the ratchet wheel 86, and is a swing plate 90 attached to the rotary shaft 68 so as to be swingable by a slight angle (an angle corresponding to two to three teeth of the ratchet). 6, 7 and 8 are arranged at the upper position.
[0050]
The ratchet pawl 88 is swingably supported on the swing plate 90 by a pin 88A and is urged clockwise in FIG. 7 by a spring 88B from the end opposite to the tip of the pawl. The ratchet wheel 86 is meshed.
[0051]
As shown in FIG. 7, the swing plate 90 is positioned in contact with the stopper pin 94 while being urged by a spring 92 in the clockwise direction.
[0052]
The end portion of the spring 92 opposite to the swing plate 90 and the stopper pin 94 are both supported by the holding member 78, and the holding member 78 is linearly supported by a support wall 77 A provided downward from the carriage portion 76. It is supported via a guide 77B so as to be movable up and down. Further, as shown in FIG. 9, the holding member 78 is elastically supported in the vertical direction with respect to the cutter support device 45 via a spring 77 </ b> C.
[0053]
The swing plate 90 is provided with a pair of passive pins 91A and 91B protruding from the side surfaces thereof in parallel with the rotating shaft 68 of the disk cutter 44A.
[0054]
As shown by a two-dot chain line in FIG. 4, the passive pin 91A is a dog disposed on the cutter base 42 at a position on the left side of the swing plate 90 in a standby state immediately before the film cutting operation of the disk cutter 44A. When it is moved in the direction 96A (left direction), it abuts against the dog 96A, and thereby the swinging plate 90 is rotated counterclockwise in FIGS. 4 and 7 (see FIG. 8), and the ratchet pawl 88 has been moved up to now. The tooth moves away from the meshed ratchet wheel 86 and moves to the next tooth counterclockwise by one tooth.
[0055]
Next, when the passive pin 91A moves in the direction away from the dock 96A (right direction), the pin 88A supporting the ratchet pawl 88 is moved to the original position (position where the passive pin 91A is not pushed by the dock 96A). Returning, the ratchet pawl 88 turns the ratchet wheel 86 clockwise.
[0056]
When the ratchet wheel 86 is rotated, the rotating shaft 68 fixed to the ratchet wheel 86 rotates. Further, the disk cutter 44A fixed to the rotating shaft 68 rotates. The passive pin 91A of the disk cutter 44B can be similarly swung by the right dock 96B in FIG. The swing plate 90 is rotatably installed on the rotary shaft 68 via a dry bearing 90A.
[0057]
6 is a driven gear coaxially attached to one end of the hollow shaft 80, and reference numeral 98 A in FIGS. 7 and 8 is meshed with the driven gear 98, and the driven gear 98 together with the hollow shaft 80. A pinion that is rotated in the support hole 78A so that the amount of eccentricity of the eccentric ring 81 can be adjusted is shown.
[0058]
The cutter receivers 45A and 45B in the cutter table 42 are consumable parts. Conventionally, the cutter receivers 45A and 45B are removed from the cutter table 42 and replaced. However, the cutter receivers in the line are removed. In the present invention, the cutter receivers 45A and 45B are removed together with the cutter base 42, and a new cutter base 42 prepared in advance outside the line is attached.
[0059]
As shown in FIGS. 1 and 10, the cover film peeling device 24 includes free rolls 24 </ b> A and 24 </ b> B that are in contact with the lower side of the laminate film 12 at a position between the half cutter 22 and the suction roll 26. A touch roll 24C that is separable from above on the free roll 24B on the side close to the suction roll 26, and an adhesive layer is formed on one side. The adhesive layer is placed on the lower side in FIG. And a winding device 24E that winds the tip of the adhesive tape 24D.
[0060]
Reference numeral 24F in FIG. 1 prevents the laminate film 12 from floating when the cover film 12C is pulled upward by sandwiching the laminate film 12 together with the free roll 24A by its own weight at the upper position of the free roll 24A. The nip roll 24G is a tape brake 24T for applying tension to the adhesive tape 24D by applying a torque in the winding direction to the tape roll 24H that is a supply source of the adhesive tape 24D, and 24I and 24J are touch rolls 24C. A nip roll for sandwiching the adhesive tape 24D between the take-up device 24E and a take-up device 24E, 24L is a motor for driving the take-up roll in the take-up device 24E, and 24M in FIG. A swing lever that is detachably supported and 24N is a swing lever. Indicate touch cylinder for driving over 24M respectively.
[0061]
The touch cylinder 24N is controlled by the control device 40 and prevents the adhesive tape 24 from coming into contact with the portion between the disc cutters 44A and 44B of the cover film 12C cut by the half cutter 22, and the disc cutter 44A. The cutting film 49A (right side in FIG. 10) is contacted to the rear portion, the cover film 12C is peeled off from the cutting line 49A, and is adhered to the cover film 12C between the cutting line 49B of the next disk cutter 44B. The tape 24D is adhered, and this is peeled off from the photosensitive resin layer 12B by being taken up by the take-up device 24E through the nip rolls 24I and 24J.
[0062]
Therefore, on the translucent support film 12A, as shown in FIGS. 5 and 10, the cover film 12C having the same length is left between the disk cutters 44A and 44B at a pitch equal to the conveyance pitch of the substrate 16. It will be.
[0063]
The touch roll 24C is configured to press the cover film 12C at a position slightly shifted to the right in the drawing from the apex of the free roll 24B. This is to increase the contact area between the adhesive tape 24D and the cover film 12C.
[0064]
Reference numeral 24P in FIG. 10 is a lever for swingably supporting the nip roll 24I. Reference numeral 24Q is a spring for biasing the lever 24P in the direction in which the nip roll 24I is pressed against the nip roll 24J. Reference numeral 24R is a guide roll. 24S shows the peeling confirmation sensor for confirming whether the cover film 12C peeled to adhesive tape 24D has adhered.
[0065]
Moreover, the code | symbol 25 of FIG. 1 shows the static eliminating device. The static eliminator 25 removes static electricity from the laminate film 12 immediately after the cover film 12C is peeled off in a non-contact or contact manner. There are things that blow wind, etc., and there is a contact type that makes the static elimination roller contact.
[0066]
Of the pair of laminating rolls 20A, 20B, the upper laminating roll 20A is in a “closed” position where it is pressed against the lower laminating roll 20B by the roll clamp cylinder 50, and the substrate 16 passes between the two. And it is driven between “open” positions spaced apart upward so as to be non-contact with the laminated film 12.
[0067]
The first and second nip rolls 30 and 34 can be separated from the lower transfer roll 15A by the first clamp cylinder 30A and the second clamp cylinder 34A, respectively, and are stacked between the transfer roll 15A. When the body film 12 or the laminate film 12 and the substrate 16 are sandwiched, they can be transported in the right direction in FIG. 1 by the rotation of the transport roll 15A.
[0068]
Reference numeral 15B in FIG. 1 denotes a transport roll that is disposed before and after the laminating rolls 20A and 20B and is rotated at a constant speed in synchronization with the transport roll 15A.
[0069]
The full cutter 32 moves in synchronism with the substrate conveyed by the substrate conveying device 14 at a position between the first and second nip rolls 30 and 34, and at the position between the substrates, the laminate film 12. Is cut in the width direction.
[0070]
The full cutter 32 moves in synchronization with the substrate conveyance direction along the lower side of the substrate conveyance surface 14A, and is reciprocated so as to return in the opposite direction, together with the cutter table 32A in the substrate conveyance direction. While the cutter base 32A travels in synchronism with the substrate 16 that reciprocates and is transported along the substrate transport surface 14A, it travels in the film width direction and is laminated with the cutter base 32A. The cutter blade 32B for cutting the film 12, the traveling drive device 32C for traveling the cutter blade 32B in the substrate width direction, the cutter table 32A, the cutter blade 32B, and the traveling drive device 32C are synchronized with the substrate transport direction. And a rack and pinion mechanism (not shown) that travels (moves forward) and a travel cylinder 32D that rapidly moves backward.
[0071]
At the time of reverse movement, the clutch (both not shown) between the pinion and the drive motor is disengaged.
[0072]
Reference numeral 54 in FIG. 1 is a film heater for heating the laminate film 12 that is disposed at a position between the guide roll 28B and the film guide roll 52 on the entry side of the laminating rolls 20A and 20B. The film guide roll 52 is supported by an air cylinder 52A at a position between the film heater 54 and the laminating roll 20A so as to be movable up and down, and the film path of the laminated film 12 is moved to the pair of laminating rolls when lowered. While being changed to a neutral position that is not in contact with both 20A and 20B, the film is raised by the laminating rolls 20A and 20B during the film tensioning operation so as to be in non-contact with the laminate film 12.
[0073]
The guide roll 28B is supported by a long hole 29A formed in the vertical direction on the main body frame (not shown) side via a bolt 29B, and the laminating of the laminated film 12 is changed by changing the vertical position. The wrapping angle around the ting roll 20A can be adjusted.
[0074]
Below the substrate transfer surface 14A, a subsequent substrate start sensor 56 that also serves as a substrate rear end sensor at a position near the entrance side of the laminating rolls 20A and 20B, and a substrate front end sensor at a position spaced upstream from this. The substrate standby sensor 58 is further provided with a free roll 59 constituting a part of the substrate transport surface 14A on the upstream side of the subsequent substrate start sensor 56.
[0075]
Reference numeral 60 in FIG. 1 denotes a conveyor roll driving servomotor for driving the conveyor roll 14C and the upstream conveyance roll row 14B in the substrate transfer apparatus 14, and 62 denotes a substrate 16 sandwiched between the conveyor roll 14C. The nip roll 62 for stabilizing the substrate transport, 62A is a cylinder for opening and closing the nip roll 62, and 64 is a heat retention for heating the substrate 16 being transported on the substrate transport surface 14A so that the temperature is not excessively lowered. Each heater is shown.
[0076]
A substrate width adjusting device (not shown) is arranged on the upstream side of the heat retaining heater 64 along the substrate transfer surface 14A, and a substrate heater (not shown) is arranged further on the upstream side.
[0077]
Here, the first and second nip rolls 30 and 34 and the nip roll 62 are made of an elastic material such as silicone rubber or silicone rubber whose surface is coated with a non-adhesive film such as fluororesin on the outer periphery of the metallic roll. It is provided and configured.
[0078]
The nip roll 62 is lowered by the cylinder 62A via the control device 40 based on the output signal when the substrate standby sensor 58 detects the leading edge of the substrate, and sandwiches the substrate 16 with the conveyor roll 14C. It has been made possible.
[0079]
When the subsequent substrate start sensor 56 detects the leading edge of the substrate fed onto the substrate transport surface 14A, the servo motor 60 is set to a speed “zero” by the control device 40, stops the temporary substrate, and then the substrate. 16 is rotated at a timing and speed that synchronizes with the laminate film 12.
[0080]
The transport roll 15A on the downstream side of the laminating rolls 20A and 20B, the conveyor roll 14C and the transport roll row 14B on the upstream side are independently and independently controlled from each other by the control device 40. It has become so.
[0081]
The negative pressure of the suction roll 26 is adjusted by the control device 40 so that the force applied to the guide roll 28A is detected by the load cell 27, and the detected value, that is, the tension applied to the laminated film 12 becomes constant. .
[0082]
1 denotes a film remaining amount sensor of the film roll 18, and 24T denotes a film winding amount sensor in the winding device 24E. These sensors 18B and 24T are both line sensors in which a plurality of optical sensors are arranged in the radial direction of the roll, and are configured to output signals corresponding to the remaining film amount and the amount of film taken up.
[0083]
Next, a process of unwinding the leading end of the laminate film 12 from the film roll 18 and setting it between the laminating rolls 20A and 20B in the film pasting apparatus 10 will be described.
[0084]
Prior to unwinding of the laminate film 12, the touch roll 24C of the cover film peeling device 24 is set so as not to come into contact with the cover film 12C, and the film guide roll 52 is lowered by an air cylinder 52A. The position where the film 12 is not in contact with the laminating rolls 20A and 20B is set. Further, the torque motor 18A is turned on so that a tensile force is generated when the laminate film 12 is unwound.
[0085]
Further, the film heater 54 and the heat retaining heater 64 are heated to a predetermined temperature, and the substrate 16 is heated to a predetermined temperature (100 to 150 ° C.) by the substrate heater on the upstream side thereof, and the laminating roll 20A, The temperature of 20B is also raised to the same extent and is always in a rotating state.
[0086]
As shown in FIG. 10, the leading end of the laminate film 12 unwound from the film roll 18 passes between the laminating rolls 20 </ b> A and 20 </ b> B opened in advance to the position of the first and second nip rolls 30 and 34. In this state, the first and second nip rolls 30 and 34 are lowered by the first and second clamp cylinders 30A and 34A, and are sandwiched between the transport roll 15A.
[0087]
When starting the film sticking operation, the conveying roller 15A and the suction roll 26 on the downstream side of the laminating rolls 20A and 20B are driven, and the laminate film 12 is unwound from the film roll 18 and fed.
[0088]
At the same time, the disk cutters 44A and 44B are driven in the film width direction while the half cutter 22 is running in synchronization with the laminate film 12, and the cover film 12C is cut.
[0089]
When the half cutter 22 synchronizes with the laminate film 12, the switching valve 43A is switched to the negative pressure source 43C side, and a negative pressure is applied to the gas blowing hole 43, thereby the laminate film 12 on the support plane 42A. In a state where the film is adsorbed, the laminate film 12 is caused to travel at a constant speed.
[0090]
Accordingly, the cover film 12C is cut by the disk cutters 44A and 44B in a state where the laminate film 12 is securely sucked and fixed on the support plane 42A.
[0091]
At this time, in order to completely cut the cover film 12C by the disc cutters 44A and 44B, the disc cutters 44A and 44B are also cut by the photosensitive resin layer 12B, and further slightly on the translucent support film 12A. It is better to bite in.
[0092]
Further, since the disk cutters 44A and 44B are integrated with the ratchet wheel 86 via the rotation shaft 68 in the rotation direction, the ratchet wheel 86 is swung in the counterclockwise direction in FIG. Further, the one-way bearing 80B prevents the rotating shaft 68 from being rotated during film cutting.
[0093]
The disc cutters 44A and 44B move to the left in FIGS. 4 and 7 to cut the laminated film 12, and then the disc cutter 44A is moved by the ratchet wheel 86 when the passive pin 91A is pushed away from the dog 96A. Turn clockwise by one blade. Further, when returning to the original position in the right direction, it is moved in the right direction until the passive pin 91A of the swinging plate 90 on the disc cutter 44B side contacts the dog 96B.
[0094]
As a result, the swing plate 90 is swung counterclockwise against the spring 92 in FIG. At this time, the ratchet pawl 88 is swung by one tooth of the ratchet wheel 86.
[0095]
Next, when the cutter support device 45 returns to the position of FIG. 7, the swing plate 90 is returned clockwise by the spring 92, and at this time, the ratchet wheel 86 is swung clockwise by one tooth by the ratchet pawl 88. Moved.
[0096]
Accordingly, the disk cutters 44A and 44B are swung by one tooth of the ratchet wheel 86 each time when reciprocating for one cutting, and the portion of the cutting blade that cuts the laminated film 12 is slightly shifted. Will be.
[0097]
The above process is repeated, and each time the laminate film 12 is cut once, the disk cutters 44A and 44B are swung by one tooth of the ratchet wheel 86, and the cutting blades 16A and 18A cause the laminate film 12 to move. Shift the area to be cut slightly.
[0098]
In the example of the above embodiment, the ratchet hole is rotated for each cutting, but this may be performed as appropriate, for example, once every 5 times, once every 10 times, or the like.
[0099]
After the cutting of the cover film 12C by the disk cutters 44A and 44B is completed, the traveling of the half cutter 22 synchronized with the laminate film 12 is stopped. At this time, the switching valve 43 </ b> A is switched from the negative pressure source 43 </ b> C to the gas supply source 43 </ b> B by the control device 40, and the compressed gas is blown out from the gas blowing hole 43.
[0100]
By blowing out the compressed gas, the laminate film 12 is quickly separated from the support plane 42A and is sent in the direction of the laminating rolls 20A and 20B.
[0101]
The half cutter 22 returns to the original position, but in this process, since the compressed gas is blown out from the gas blowing holes 43 of the support plane 42A, the running plane of the support plane 42A and the laminate film 12 are the same. However, the laminate film 12 does not come into contact with the support plane 42A. Therefore, damage due to relative movement with the support plane 42A does not occur.
[0102]
Moreover, since the film feed direction both-ends corners 42B and 42C of the cutter base 42 are chamfered or formed in an arc shape, the laminate film 12 is not damaged at this portion.
[0103]
The position of the cutting line of the cover film 12C by the half cutter 22 is known by the number of pulse signals output from the rotary encoder 38, and the cutting line 49A by the right disk cutter 44A in FIG. The timing of reaching the position of the touch roll 24 </ b> C in the cover film peeling device 24 can be seen.
[0104]
Therefore, at this timing, the control device 40 lowers the touch roll 24C via the touch cylinder 24N, and the pressing of the adhesive surface of the adhesive tape 24D wound around the touch roll 24C to the cover film 12C is performed by the disc cutter. Starting from the position just before the cutting line 49A by 44A.
[0105]
For this reason, the cover film 12C is peeled off from the position of the cutting line 49A by the disk cutter 44A, and is taken up by the take-up device 24E together with the adhesive tape 24D.
[0106]
Immediately before the cutting line 49B by the disc cutter 44B that has been generated by the next cutting by the half cutter 22 reaches the position of the touch roll 24C, the touch roll 24C is driven by the controller 40 in a direction away from the laminate film 12, The cover film 12C adhered to the adhesive tape 24D is separated from the laminate film 12 at the cutting line position by the disk cutter 44B.
[0107]
As a result, the cover film 12C between the cutting lines 49A and 49B by the disc cutters 44A and 44B is left on the translucent support film 12A and the photosensitive resin layer 12B without being peeled off, and passes through the suction roll 26 and is then laminated. It is sent in the direction of the casting rolls 20A and 20B.
[0108]
Before the cutting line 49A by the disk cutter 44A on the cover film 12C by the first cutting approaches the laminating rolls 20A and 20B, the leading substrate is placed on the transport roller row 14B below the heat retaining heater 64 through the substrate width adjusting device. 16 is conveyed. When the front end of the substrate 16 is detected by the substrate standby sensor 58, the nip roll 62 is lowered by the control device 40 at a timing that matches the front end of the substrate 16, and the substrate 16 is sandwiched between the conveyor roll 14C.
[0109]
After the transport roll row 14B and the conveyor roll 14C are set to a transport speed of “zero” by the servo motor 60, the cutting line 49A on the cover film 12C coincides with the position slightly behind the leading edge of the leading substrate 16 in the feed direction. The substrate 16 is fed between the laminating rolls 20 </ b> A and 20 </ b> B by the substrate transport device 14 in synchronism with the laminate film 12 at the timing and speed to be performed.
[0110]
The timing at which the leading end portion of the leading substrate 16 reaches the laminating rolls 20A and 20B is determined by the distance between the substrate standby sensor 58 and the laminating rolls 20A and 20B, and the conveyance speed by the servo motor 60. Calculated from the relationship.
[0111]
The upper laminating roll 20A is lowered by the roll clamp cylinder 50 at the timing when the tip of the substrate 16 thus indexed reaches the laminating rolls 20A and 20B. The leading end of the top substrate 16 is sandwiched between the laminated film 12 between the lower laminating rolls 20B and is sent in the right direction in FIG. 1 while being thermocompression bonded by the rotation of the laminating rolls 20A and 20B.
[0112]
At the timing when the upper laminating roll 20A is lowered, the film guide roll 52 is driven in a direction (upward) away from the laminate film 12 in FIG. Thereby, the laminated body film 12 comes to be clamped by the laminating rolls 20A and 20B.
[0113]
In the example of the above embodiment, a pair of disk cutters are provided, and the cover film 12C is cut at two places at the same time. However, the present invention is not limited to this, and one disk is used. The cutter may be cut twice, for example, twice in one reciprocation each time the half cutter 22 is run once in synchronization with the laminate film 12.
[0114]
Further, the cutting means for the cover film 12C is not limited to the disk cutter, and may be other cutting means such as a knife cutter.
[0115]
【The invention's effect】
Since the present invention is configured as described above, in the half cutter that cuts the cover film while traveling in synchronization with the laminate film, the friction between the support plane serving as the cutter receiver and the laminate film is prevented, and It has the outstanding effect that damage to a body film can be reduced.
[Brief description of the drawings]
FIG. 1 is a schematic side view including a partial block diagram showing a film pasting apparatus provided with a film cutting apparatus according to the present invention.
FIG. 2 is a block diagram showing a control system in the film pasting apparatus.
FIG. 3 is an enlarged front view showing a film cutting apparatus according to an example of an embodiment of the present invention.
FIG. 4 is a side view of the same.
FIG. 5 is an enlarged side view showing a positional relationship between a cutting position and a substrate by the film cutting apparatus.
FIG. 6 is an enlarged sectional view showing the main part of the film cutting apparatus.
7 is a side view taken along line VII-VII in FIG.
8 is a side view similar to FIG. 7 showing the operation of the film cutting device.
9 is a sectional view taken along line IX-IX in FIG.
FIG. 10 is an enlarged schematic side view showing the operation of the cover film peeling apparatus in the film pasting apparatus.
[Explanation of symbols]
10 ... Film sticking device
12 ... Laminated film
12A ... Translucent support film
12B ... photosensitive resin layer
12C ... cover film
14 ... Substrate transfer device
14A ... substrate transfer surface
16 ... Board
18 ... Film roll
20A, 20B ... Laminating roll
22 ... Half cutter
40 ... Control device
42 ... Cutter stand
42A ... support plane
42B, 42C ... Corner
43 ... Gas outlet
43A ... Switching valve
43B ... Gas supply source
43C ... Negative pressure source
44A, 44B ... Disc cutter
45 ... Cutter support device

Claims (2)

A cutter formed by forming a cutting edge,
A cutter supporting unit for supporting the cutter,
A cross section at a substantially right angle with respect to the surface including the cutter, and a cutter table for supporting the film on a support plane along a substantially horizontal film longitudinal feed surface;
The cutter support device is driven in the film width direction along the support plane in parallel with the plane including the cutter while pressing the cutting blade of the cutter against the film on the cutter table, and the thickness of the film A cutter driving device for cutting at least part of the direction;
Film in the film cutting by said cutter, said cutter, said cutter support device, the cutter base, and said cutter driving apparatus, while driving in synchronization with the same direction in the longitudinal direction of feed of the film, by the cutter After cutting, a cutter synchronous drive device that drives in the direction opposite to the feeding direction of the film ,
Becomes a, the cutter base support plane, provided a gas blowout unit suppresses during the contact of the cutter block by blowing gas into the film and the film in which the cutter block is driven in the opposite direction A film cutting apparatus characterized by the above. In claim 1,
The gas blow-out means includes a plurality of gas blowing holes formed in the support plane, and is configured to include a gas supply source for supplying via the control valve to the compressed gas to the gas blowing holes,
The control valve can selectively connect the gas blowing hole to the gas supply source or the negative pressure supply source, and the cutter, the cutter support device, the cutter base, and the cutter driving device can be connected to each other. The film cutting apparatus , wherein the gas blowing hole is connected to the negative pressure supply source while being driven in a direction synchronized with a feeding direction of the film.

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