JPH04104628U - Double film peeling device - Google Patents

Abstract

(57) [Summary] [Purpose] To accurately and continuously peel only the upper film from a double film in which the upper film and the lower film are adhered via an adhesive layer. [Structure] The main body 36 of the apparatus is provided so as to be reciprocated in a linear direction near and far with respect to the peeling table 9 that suctions and supports the double film plate 4. A reversing frame 42 is provided to be movable up and down, and a peeling guide frame 41 is provided adjacent to the reversing frame 42,
Further, the device main body 36 is provided with a payout shaft 47 for holding the release tape 46 and feeding it out to the reversing frame side, and a tension roller 53 for feeding the release tape 46 to the winding shaft 67 side is provided. During the backward movement of the main body, a synchronized drive means 63 is provided to rotate the tension roller 53 in synchronization with the backward movement speed of the main body.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is based on a double film made by superimposing film plates on top and bottom through an adhesive layer. The present invention relates to a device for peeling lower films from each other. Note that the adhesive layer referred to in this specification means a releasable adhesive layer or adhesive layer.

0002 In more detail, a liquid crystal board with a built-in liquid crystal whose reflectance changes depending on electric or magnetic fields, etc. By polymerizing the polarizing plate, this is applied to the surface of the polarizing plate by interference from the liquid crystal plate. A coloring phenomenon occurs (this is generally called color polarization) and also shifts the phase of the polarizing plate. In other words, by shifting the overlapping angle of the two around the plane, the refraction angle of light can be changed. The color that appears on the surface of the polarizing plate changes accordingly. For example, liquid crystal board By sequentially sliding the polarizing plate around the polymerization surface, Depending on the polymerization angle, the color that appears on the polarizing plate surface changes from blue, purple, yellow, and green. do.

0003 In other words, when displaying a liquid crystal display, the liquid crystal surface consists of a liquid crystal plate and a layer on top of it. The desired color can be expressed by appropriately selecting the polymerization angle with the polarizing plate to be laminated. I can do that.

0004 In this invention, as mentioned above, by attaching a polarizing plate to a liquid crystal plate, the surface of the polarizing plate is Mainly used in manufacturing equipment for colored liquid crystal panels that display colors.

[0005]

[Conventional technology]

As shown in FIG. 12, a film plate forming one side of the laminated film, for example a liquid crystal The other film plate, for example, polarizing plate 2, is laminated onto the surface of plate 1 at a desired polymerization angle θ. When attaching the two, of course an adhesive layer 3 (see A in Figure 11) must be provided between the two. Must be.

[0006] However, when attaching the polarizing plate 2 to the liquid crystal plate 1, be sure to avoid intrusion of foreign matter such as dust. There must be.

[0007] However, as mentioned above, the polarizing plate 2 must be attached to the liquid crystal plate 1 at the desired overlap angle θ. In addition, since the type of coloring varies depending on the usage conditions, the polymerization angle The degree θ must be changed each time. Responds to such complex adhesion conditions Therefore, in the past, the work of attaching the two had to be done manually.

[0008] The present invention is used in a device that automatically attaches such a polarizing plate 2 and liquid crystal plate 1. However, the biggest problem in this case is that the two are naturally attached via an adhesive layer. Therefore, an adhesive layer must be provided on either the polarizing plate 2 or the liquid crystal plate 1. There is no such thing. However, when installing the adhesive layer on either of the boards, the adhesive layer cannot be used as is. However, since it cannot be left exposed, a protective cover is provided on the adhesive layer to prevent it from being exposed when the two plates are attached. Just before peeling off the protective cover from the adhesive layer, then attaching both boards to each other. If this is done, there is no risk of foreign matter such as dirt entering between the two plates.

[0009] The present invention applies a protective cover to a polarizing plate or liquid crystal plate through an adhesive layer. It is used when removing a protective cover from a double film made by pasting This invention relates to a peeling device.

0010

[Problem that the idea aims to solve]

Therefore, the present invention prevents foreign matter from entering as much as possible when bonding film plates together. At the same time, the purpose is to automatically perform a series of these operations.

[0011]

[Means to solve the problem]

In order to solve the above problem, in claim 1, as shown with reference numerals, the upper flap A double film is formed by pasting a film plate 4a and a lower film board 4b with an adhesive layer 3. A device for peeling off the upper film plate 4a of the film plate 4 from the lower film plate 4b. Therefore, the device main body 36 is far away from the peeling table 9 that suction-supports the double film plate 4. The device body 36 is provided with a forward end portion in the forward direction. A knife edge-shaped reversing frame 42 is provided on the reversing frame 42 so as to be movable up and down, and a reversing frame 42 adjacent to the reversing frame 42 is provided. A peeling guide frame 41 is provided adjacently, and a peeling tape 46 is mounted on the main body 36 of the apparatus. A feeding shaft 47 is provided for feeding this to the reversing frame side, and via the reversing frame 42 A tension roller that pulls the reversed release tape 46 and sends it out to the winding shaft 67 side. 53 is mounted on a shaft, and a brake is applied to the tension roller 53 when the device main body 36 moves forward. to prevent the rotation of the tension roller 53, and to prevent the main body 36 from rotating when the device main body 36 moves back. A synchronized drive means 63 for rotating the tension roller 53 in synchronization with the backward movement speed. A configuration is adopted in which the following is provided.

0012 In a second aspect of the present invention, in the configuration of the first aspect, the peeling guide frame 41 is inverted. It is approximately U-shaped from the tip on the frame 42 side to the rear end that is further away from this, and on the rear end side. This configuration adopts a configuration in which the width becomes narrower toward the front.

[0013]

[Effect]

The upper film plate 4a and the lower film plate 4b are adhered by an adhesive layer 3. The double film plate 4 is suction-supported by the peeling table 9, and in this state, the main body 36 of the apparatus is The tension roller 53 is moved forward toward the peeling table 9, and at this time, the tension roller 53 is moved by the synchronized drive means 63. The brake is applied and the clamp between the tension roller 53 and the rotary drive shaft 60 is Since the stripping tape 46 is cut off, the stripping tape 46 is temporarily stopped on the stripping guide frame 41 side. Therefore, as the device main body 36 moves forward, the peeling tape 46 moves toward the feeding shaft 4. 7 and when the main body 36 of the device comes directly above the peeling table 9, the peeling tape 46 is facing double film 4. From this position, the knife-edge reversal frame 42 Descend and apply the release tape 46 onto the double film 4 via the adhesive layer 46a on the back side. Adhere it to the side film 4a, and then move the device main body 36 back to its original position. However, at this time, the brake on the tension roller 53 is applied by the synchronized drive means 63. released, and the clutch between the tension roller 53 and its rotational drive shaft 60 is input. Therefore, as the device main body 36 moves back, the tension roller 53 rotates in synchrony with the peeling process. The tape 46 is pulled toward the winding shaft 67 side. Release tape 46 is on the winding shaft 67 side When the tape 46 is pulled into the double film 4 by its adhesive layer 46a, The upper film 4a is peeled off from the lower film 4b, and the upper film 4a is removed from the peeling machine. It passes through the peeling guide frame 41 together with the tape 46 and is pulled by the tension roller 53. Both are integrally wound around the winding shaft 67. The release tape 46 The upper flap is removed by the cooperation between the adhesion force and the peeling action of the knife edge at the tip of the reversing frame 42. Since the film 4a is to be peeled off, the peeling tape 46 may have a narrow width.

[0014] Further, according to claim 2, the upper film is peeled off against the narrow peeling tape 46. Although the film 4a is quite wide, the peeling guide frame 41 allows the upper film 4a to It is wound up on the winding shaft 67 while being folded.

[0015]

【Example】

FIG. 1 is a front view of the entire laminating apparatus according to the present invention. A double layer formed by bonding the film plate 4a and the lower film plate 4b together via the adhesive layer 3. A loading table 7 on which a large number of film plates 4 (A in FIG. 11) are loaded is provided. A transfer device 10 is installed in the center, and there is a gap between the loading platform 7 and the transfer device 10. is provided with a material transfer device 8 that reciprocates between the two by a linear drive member 13. It is being A peeling device 11 is provided on the right side of the figure, and is driven by a linear drive member. It is designed to reciprocate between the solid line position and the transfer device 10. Also ride Directly below the transfer device 10, a polymerization angle adjustable sticking device 6 is provided, and the linear drive member 1 5 reciprocates in the left and right direction, and also runs directly to this linear drive member 15. It is designed to be reciprocated in the front and rear direction by another linear drive member 16. is supported by a radial bearing 17 and rotated in a horizontal plane by a rotational drive member (not shown). It is designed to be driven.

[0016] FIG. 2 is a side view, and the original film feeding device 12 is provided at the left side in the figure. This feeding device moves the strip-shaped raw film 5 in a direction perpendicular to the plane of the paper. It is sent out intermittently. The polymerization angle flexible sticking device 6 is as described above. between the position directly below the transfer device 10 and the original film feeding device 12 as shown in FIG. It is reciprocated by the linear drive member.

[0017] FIG. 3 is a plan view in which the transfer device 10 is provided in the center of the page, and the transfer device 10 is provided on the left side. There is a loading table 7 on the side, a peeling device 11 on the left side, and a raw film feeder on the upper side of the page. A device 12 is provided respectively, and a laminating device 6 with a flexible overlapping angle that does not appear on the paper is a Directly below the transfer device 10, and adhered material transfer device 8 directly above the loading platform 7. It has been deployed.

[0018] 4 and 5 show detailed structures of the loading table 7 and the adhered material transfer device 8. A static elimination blow 18 is attached to the side wall of the loading platform 7, and static elimination ions are emitted from the blow. gush. On the other hand, the material transfer device 8 provided above the loading table 7 is as described above. The loading platform 7 is moved by a linear drive member 13 consisting of a linear drive cylinder and a guide member. It is designed to be driven from a position directly above the above-mentioned transfer device 10 to a position directly above the transfer device 10. However, in the transfer device 8, a vacuum suction pad 19 that adsorbs the double film plate 4 is moved up and down. It is designed to move. That is, the adherend material transfer device 8 13, and a pair of lifting drive systems for the bracket frame 20. It consists of an elevating frame 23 that is raised and lowered by cylinders 21 and 22, and a The vacuum suction pad 19 is provided, and further cooperates with the static elimination blow 18. The vacuum suction pad 19 is designed to prevent a plurality of double film plates 4 from being suctioned at the same time. A brushing device 24 is provided in parallel to the dressing pad. The brushing device 24 is , which is supported by a pivot 25 and has an elastic plate 26 at its tip and a follower 27 at its rear end. A cam drive machine consisting of a stopper 28, a motor 29, a transmission belt 30, and a disc cam 31 It consists of structure 32.

[0019] Therefore, the vacuum suction pad 19 of the adhered material transfer device 8 located directly above the loading table 7 descends and adsorbs the double film plate 4 on the loading platform 7, and then lifts the film plate upward. When lifting, as shown in FIG. The small cylinder 22 on the side operates first and lifts the double film plate 4 by a slight amount. In this state, the brushing device 24 operates, and at the same time, the static eliminating blower 18 discharges static eliminating ions. gushes out. By the operation of the brushing device 24, the brushing tool 26 is activated by a cam drive mechanism. 32 swings up and down as shown in the figure, and the elastic plate 26 moves over the double film plate 4. If you place multiple double film plates 4 on the vacuum suction pad 19, If it is adsorbed, the film plates 4, 4 are separated from each other by the above-mentioned placing action, At the same time, the static eliminating ions ejected from the static eliminating blow 18 are allowed to enter between the film plates. Remove the static electricity charged on the double film board 4, and stack the excess double film board 4. Drop it onto the platform 7. After that, the other large cylinder 21 applies the vacuum suction pad. The double film plate 4 that is attracted to the pad 19 is lifted up to the upper limit, and then the next process is carried out. transferred by the aforementioned linear drive member 13 to a position directly above the transfer device 10. become.

[0020] In this way, an extra double film plate is placed between the loading table 7 and the adhered material transfer device 8. 4 and a static elimination blower 18 that cooperates with the discharging device 24. , it is possible to accurately transfer only one double film plate 4 to the next process, and It is possible to prevent the double film plate 4 from being charged during the work from the next process onwards. I can do it.

[0021] 6, FIG. 8 and FIG. 9, reference numeral 10 indicates a transfer device, and the attached material The double film plate 4 transferred directly above the transfer device 10 by the transfer device 8 is straight The empty suction pad 19 is lowered and placed on the table plate 9 of the transfer device 10. At this point, the suction action of the vacuum suction pad 19 is released, and the entire surface of the table plate 9 is removed. The double film plate 4 is moved by the suction force from the suction holes 33 provided over the area. Strongly adsorbed to the table surface. Therefore, this table board is compatible with the peeling table 9 of the present invention. It will be configured.

[0022] 6 to 10 mainly show the peeling device 11 to which the present invention is applied. The device itself 36 is a ball screw mechanism 37 and drives it as shown in FIG. 6, especially FIG. The aforementioned linear drive member consisting of the motor 38, the transmission belt 39 and the guide member 40 14, and the device body 37 has a peeling guide facing in its forward direction. A side frame 41 is attached. The guide frame 41 extends from the tip to the rear end. It is provided in an upwardly sloping shape, and a knife-edge shaped reversing frame 42 is uniquely provided at the tip. The reversing frame 42 is supported by an elevating cylinder 43 and lowered to the chain line position. It is now possible to descend. In addition, 44 is a longitudinal adjustment screw of the reversing frame 42, and 45 is a buffer spring. A spirally wound peeling tape 46 is pivotally supported at the rear of the peeling device 11. A feed-out shaft 47 is attached that sequentially feeds out the , a feeding roller 48, a pressing roller 49 opposing this, and a dancer roller 50. , guide rollers 51, 52, and a tension roller adjacent to the upper end of the peeling guide frame 41. A roller 53 and a pair of pressing rollers 54 and 55 facing the roller 53 are provided. on the other hand As shown in FIG. 7, the machine frame 56 on which the motor 38 is installed has the gas on its upper surface. A rack member 57 is provided in parallel with the ID member 40, and is pivoted to the device main body 36. At the same time, another pinion 58, which is also pivotally supported on the device body 36, is engaged. The pinion 58 is engaged with the pinion 59, and the latter pinion shaft 60 is further switched. The synchronized drive means 63 is a bearing mechanism incorporating a clutch 61 and a brake mechanism 62. The pinion shaft 60 is supported by a transmission belt 64 that connects the tension roller. It is transmission connected to the collar 53. Furthermore, the hollow part of the machine frame 56 can be used to A winding shaft 67 driven by a motor 65 and a transmission belt 66 is mounted on a shaft. Ru. The release tape 46 supported by the feeding shaft 47 is fed out by a feeding roller 48, Peeling guide frame 4 via dancer roller 50 and guide rollers 51 and 52 1 to the inversion frame 42 at the tip, and then the knife edge 4 of the inversion frame 42 2a, passes through the peeling guide frame 42, and is pressed by the tension roller 53 at the upper end of the peeling guide frame 42. winding roller 55, a plurality of guide rollers 67, 68, 69 67 by the locking tool 70. When the peeling device 11 moves forward, the front A synchronized drive hand that also serves as a bearing mechanism for the pinion shaft 60, which is the drive source for the tension roller 53. The clutch 61 of the stage 63 is disengaged and the brake 62 is kept applied. Said direct Driven by the linear drive member 14, the peeling device 11 is positioned directly above the transfer device 10 described above. As the release tape 46 moves forward, the release rollers 47 and 48 sequentially At the same time, the peeling tape 46 on the side of the peeling guide frame 41 from the reversing frame 42 is pulled out. Since the brake 62 is applied by the tension roller 53, it will not be pulled back. Moreover, the tension is always on without relaxing.

[0023] On the other hand, the table plate 9 of the transfer device 10 is As mentioned above, the double film plate 4 fed by the adherend material transfer device 8 is adsorbed and placed. Therefore, at a position directly above the transfer device 10, the reversing frame 4 of the peeling device 11 2 is lowered by the lifting cylinder 43, and the knife edge 42a is By bringing the peeling tape into contact with the knife edge 42a, When the adhesive surface of the tape 46 contacts the upper film plate 4a of the double film plate 4, the release tape 46 and the upper film 4a are bonded together. After that, the peeling device 11 is retreated. At this time, the clutch 61 of the synchronized drive means 63 should be engaged. By keeping the brake 62 in the released state, the When retracting, the tension rod is transmitted to the rack 57, pinions 58, 59, and transmission belt 64. The roller 53 rotates in synchronization with the backward speed of the peeling device 11. Therefore, the peeling device 11 As it moves backward, the release tape 46 is pulled by the tension roller 53 and wound backward. Therefore, when the release tape 46 is applied in the winding direction, it is integrally adhered to this. The upper film plate 4a of the double film plate 4 is separated from the lower film plate 4b of the double film plate 4. It is peeled off against the adhesive force of the tape and guided to the peel guide frame 4 together with the peel tape and moves rearward, passing between the tension roller 53 and the pressing roller 55, and moving backward. The upper film plate 4a is wound onto the winding shaft 67 via drawers 67 to 69. That will happen. The release tape 46 may have a width of 15 to 20 mm; Since the width of the upper film plate 4a to be peeled off is quite wide, a peeling guide is required to guide both. As shown in FIG. 10, the side frame 41 has a substantially U-shape from its front end to its rear end. The width becomes narrower toward the rear end, and the upper film plate 4a is connected to the peeling guide frame 41. As the upper film plate 4a is pulled upward along the It is designed to be rolled up when folded. By going through the above steps, Figure 11 As shown in FIG. B, a lower film plate 4b with the adhesive layer 3 remaining on the upper surface side is formed. . Then, following this peeling step, the lower film 4b is replaced with another film, e.g. If the side film 4b is a liquid crystal plate, a polarizing plate will be attached via an adhesive layer.

[0024]

[Effect of the idea] According to the present invention, the upper film and the lower film are pasted together through the adhesive layer. It is possible to peel off only the upper film from a double film with great precision, and The peeling tape is continuously supplied and the peeling work can be performed efficiently.

[0025] In addition, the peeling process using release tape depends on the adhesive strength of the release tape and the knife edge of the reversing frame. The peeling tape itself is narrow because it works in conjunction with the peeling action of the tape. Therefore, it is not bulky, and the upper film can be attached with release tape. Since it is wound up integrally on the winding shaft, the upper film that is torn off is It does not scatter and is easier to dispose of afterwards.

[0026] According to claim 2, the upper film is peeled off with a release tape and both are integrally wound. When the film is wound onto the take-up shaft, the wide upper film is folded into a narrow width while being wound. Since the upper film will be removed, the upper film can be collected from this side without becoming bulky. can be divided into minutes.

[Brief explanation of drawings]

FIG. 1 is an overall front view of an apparatus according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a front view showing the main parts of the adherend material transfer device and the loading table.

FIG. 5 is an enlarged view of the main part.

FIG. 6 is a front view of the main part of the peeling device.

FIG. 7 is a side view of the same.

FIG. 8 is a front view showing the same operating state.

FIG. 9 is a front view showing the main parts in the same operating state.

FIG. 10 is a perspective view showing the main parts in the same operating state.

FIG. 11 is a diagram showing a cross section of a double film and its peeled state.

FIG. 12 is a diagram showing an example of a laminated film manufactured by a conventional technique.

[Explanation of symbols]

3...Adhesive layer, 4a...Upper film board, 4b...Lower film board, 4...Double film board, 9...Peeling table (table board), 11...Peeling device, 36...Device main body, 41...Peeling guide frame , 42... Knife-edge reversing frame, 46... Peeling tape, 47... Payout shaft, 53... Tension roller, 63... Synchronized drive means, 67... Winding shaft.

Claims (2)

[Scope of utility model registration request] 1. An apparatus for peeling an upper film plate from a lower film plate of a double film plate formed by adhering an upper film plate and a lower film plate with an adhesive layer, the apparatus main body comprising: , is provided to be reciprocated in a near-far linear direction with respect to a peeling table that suction-supports a double film plate, and a knife-edge-shaped reversing frame is provided at the tip of the main body in the forward movement direction, and is movable up and down. A peeling guide frame is provided adjacent to the reversing frame, and a feeding shaft is provided on the main body of the apparatus for hanging the peeling tape and feeding it toward the reversing frame,
In addition, a tension roller is mounted on the axis to tension the reversed release tape via the reversal frame and send it out to the winding shaft side, and when the main body of the device moves forward, a brake is applied to the tension roller to prevent rotation of the tension roller. A double film peeling device comprising a synchronized drive means for rotationally driving a tension roller in synchronization with the backward movement speed of the device main body when the device main body moves backward. 2. The peeling guide frame is formed in a substantially U-shape from the tip end on the reversing frame side to the rear end side further away from this, and the width becomes narrower toward the rear end side. double film peeling device.