JP2007007985A - Laminate sticking device and its method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stick a laminate at a position allotted at the center while meanders are adjusted in order to stick the laminate in the middle in the feed direction in relation to an individual sheet laminate substrate and the sheet protection film surface in the feed direction of a protective film protecting the substrate. <P>SOLUTION: In a lamination device laminating two kinds of sheet-like materials fed continuously from a roll state, in the sheet-like material, the protective film is laminated in advance on at least one surface of a sheet-like substrate to be the laminate. After the sheet-like materials are half-cut at prescribed intervals from the side of the sheet-like substrate to be the laminate, the protective films of the sheet-like materials are peeled off to make the sheet-like substrate to be the laminate which is laminated at constant intervals on another sheet protection film. After the protective film is peeled off, in a process reaching a pressure contact roll apparatus, a plurality of independently speed-controllable conveyers for the sheet-like substrate to be the laminate are installed in series. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a laminating and sticking apparatus and method used when an antireflection film, an antiglare film, an electromagnetic wave shielding film or the like of a flat panel display is bonded.

  In the manufacturing process of a display device such as liquid crystal, TFT, or plasma, many means are used to improve the display function by bonding a plurality of functional films. At the time of the bonding, the existing technology bonds the sheet-like films or the sheet-like film and the glass substrate one by one. However, the single wafer processing method has poor productivity and often relies on human hands.

  Recently, a laminate base sticking roll is usually produced in the form of a roll made of a film, and before the laminating process, it is fed out from the roll state without being cut into single sheets, and more than one continuous A method of laminating a film to increase production speed and finally cutting to a predetermined sheet size is performed.

Japanese Patent Laid-Open No. 5-178526 JP 2004-250153 A Japanese Patent Laid-Open No. 61-199581 JP-A-11-105230

  The final product with a laminate substrate bonded to a sheet protective film is not the same size in the longitudinal direction of the individual laminate substrate and the sheet protective film protecting it, but the longitudinal direction of one sheet protective film surface On the other hand, in order to stick to the central part, a certain edge is provided so that it is located at the center of the length of the sheet protective film, and as a result, it is pasted to be located at the central part. Is desirable. However, after laminating a plurality of films continuously, it is preferable to apply a dimensional relationship such that the predetermined edge remains, and then apply a sheet-like substrate to be laminated to the sheet protective film.

  In the present invention, first, a laminate base material sticking film in which a protective film and a sheet base material to be laminated (hereinafter referred to as “laminate base material”) are integrated is unwound, and the length in the longitudinal direction of the sheet should be obtained. Half-cut the laminate base material for each dimension, peel off the protective film continuously, and at the same time, the other single-wafer protective film while controlling the positional relationship of the laminate base material separated for each half cut The present invention provides an apparatus and a method for manufacturing a single-wafer laminate base film, which is conveyed to a laminating roll to be pasted as a single-wafer laminate base.

  That is, when the laminated base material from which the protective film has been peeled is received by the first conveyor in synchronization with the supplied speed and the upstream and downstream transport speeds do not match, the position of the laminated base material will not be batting between them. If necessary, it passes through a plurality of buffer conveyors to another second conveyor further downstream and transfers it at a high speed.

  In that case, the first conveyor is set to the positional relationship immediately after the process in which the protective film temporarily adhering the laminate base material is peeled off, up to the synchronous speed for receiving the next laminate base material sent. Speed up and receive the incoming laminate substrate.

  Here, with respect to the width direction of the laminate base material, an edge cutter mechanism that performs edge cutting to a predetermined width is provided after the laminate base material sticking film unwinding step, and the laminate base material from which the protective film is peeled off in the area of the present invention is provided. It is cut before being conveyed and wound by an edge winding mechanism.

  On the other hand, because of the speed control of the laminate base material that is sent sequentially, the laminate base material transported to the second downstream conveyor through some necessary buffer conveyors is the transport speed and the flow of the laminate base material. The sheet protection film unwinding roll to be laminated at an appropriate pitch on the other sheet because the amount of movement in the direction perpendicular to the direction and the angle in the direction of the laminate substrate flow can be controlled. In a state where the relative positional relationship between the sheet protective film unrolled from the laminate and the laminate base material is appropriately controlled, the sheet is fed into the laminate roll in order to adjust to the laminate roll and crimp it in accordance with the appropriate position. For this reason, “frame pasting” is realized in which the so-called necessary position is adjusted in which the sticking start position of front / rear / left / right rotation is adjusted as desired.

  In addition, the laminate base material with the protective film peeled off is conveyed through a plurality of conveyors, but when it is conveyed from the upstream first conveyor to the most downstream second conveyor, the entire processing time is shortened. Therefore, it is desired to transport at as high a speed as possible. Therefore, the buffer conveyor for adjustment inserted between the upstream first conveyor, the most downstream second conveyor, and the downstream most second conveyor are each provided with a vacuum mechanism, and the laminate base material is turned up during high speed conveyance. I am trying not to.

  The gap between the buffer conveyor for adjustment inserted between the upstream first conveyor and the second downstream conveyor and the second downstream conveyor is provided with a vacuum mechanism in each conveyor so that it does not turn up. Even so, the suction force cannot be obtained between the end portions of the respective conveyors between the upstream first conveyor, the buffer conveyor provided between them, and the most downstream second conveyor, and the speed rule is also obtained.

  Therefore, in the present invention, between the plurality of conveyors, for example, between the upstream first conveyor and the next buffer conveyor, between the buffer conveyor and the most downstream second conveyor, in a position facing the conveyor conveyance surface. By arranging a nozzle device for creating a parallel air flow constituted by a nozzle air ejection side and a nozzle air suction side at the front part thereof, and a guide plate composed of a blowing slit nozzle and a flat plate, between the first conveyor, The laminate base material is stable against the transfer from one end of each conveyor to the other so that the laminate base material does not turn up when the laminate base material passes between the end parts of each conveyor such as the buffer conveyor and the second conveyor. Realizes the transfer.

  In the state where the protective film is peeled off and conveyed on the first conveyor upstream, the laminate substrate adhesive film is conveyed alone by the laminate substrate, and further passes through the transfer section to the second downstream conveyor, and is most downstream. To the second conveyor.

  Next, when the end portion of the sheet protective film is inserted, the second conveyor located on the most downstream side of the laminate base until the end of the sheet protective film is inserted at the normal crimping point of the laminate base. If there is variation in the relative position above, there is a possibility that when the other sheet protective film and the laminate base material are pressure bonded and bonded, they are not bonded in a regular positional relationship.

  Therefore, when the laminate base material cut to a fixed length is transferred to the second conveyor on the most downstream side, the relative position between the predetermined position of the sheet protective film and the position of the front end portion of the laminate base material is corrected. Therefore, the relative position between the second conveyor at the most downstream position and the laminate substrate is read by a CCD camera provided immediately before the laminate substrate is sent to the laminate roll, and is bonded to the normal position with the relative single wafer protective film. In this way, the second downstream conveyor moves in parallel or rotates in the laminating substrate flow direction based on the correction instruction, so that the laminating substrate is positioned at the regular position at the laminating roll pressing point. Adjusted.

  With this method, the laminated base material is completely attached at regular intervals to the reference position on the other side of the laminated base material, so that the product after lamination can be wound on a roll as it is. Alternatively, it can be cut into sheets immediately after lamination and formed as a sheet-like product.

  The rectangular size of one laminate substrate and the other laminate substrate is not the same in the final product with multiple laminate substrates bonded together. Therefore, it can be attached so as to be located at the center portion with a certain edge so that it is located at the center of the length of the sheet protective film. However, after laminating a plurality of films continuously, the final product can be subjected to a single wafer process in such a dimensional relationship that the predetermined edges remain.

  On the other hand, the laminate substrate conveyed by the conveyor is configured so that the conveyance speed, the amount of movement in the orthogonal direction with respect to the laminate substrate feed direction, and the angle in the laminate substrate feed direction can be controlled. Therefore, in order to reach the crimping point in a state where the relative positional relationship with the other laminate base material to be laminated is appropriately controlled, the sticking start position is shifted as desired. Can be realized.

[Example]
FIG. 1 is a cross-sectional side view showing the best embodiment of a laminating apparatus 1 according to the present invention. The single-wafer laminate base material adhesive film 61 of the apparatus will be described with reference to the drawings.

  As an overall configuration, as shown on the right side of the side view of FIG. 1, the upper part of the laminate base material adhesive film 60 is the protective film 9 and the lower part is the laminate base material 11 from the laminate base material sticking film unwinding roll 2. In the positioned state, the laminate substrate sticking film unwinding roll 2 is unwound. An edge cutter 3 is used to cut the edge in accordance with the final finished product width of the laminate substrate adhesive film 60, and the laminate substrate adhesive film 60 is wound through the edge winder 4 that winds the cut edge. With the laminate base material 11 attached to the lower side, a half cutter 6 is used to leave the upper protective film 9 and half-cut the laminate base material adhesive film 60.

  The first conveyor 10 is stopped and half-cut at the moment when the regulation length is reached together with the feed speed of the next first conveyor 10 so that the laminate base material 11 can be cut to the regular length of the sheet.

  A film separating mechanism 7 is provided at a position where the half-cut laminated base material adhesive film 60 reaches the first conveyor, the laminated base material 11 and the protective film 9 are separated via the film separating mechanism 7, and the protective film 9 Is fed in the direction of the protective film take-up roll 8 and taken up.

  Thus, the peeled laminate base material sticking film 60 keeps the state in which only the laminate base material 11 is not turned up by the vacuum mechanism (not shown) attached to the first conveyor 10 located upstream. While being transported.

  After being sent to the upstream first conveyor 10, it is located at the most downstream side with a vacuum mechanism (not shown) similar to the downstream first conveyor 10 whose speed is controlled independently of the feed speed of the first conveyor 10. To the second conveyor 13.

  A cycle in which the sheet protection film 17 is sent between the first conveyor 10 and the second conveyor 13 when the laminate substrate 11 processed and sent from the laminate substrate adhesive film 60 is sent downstream. Therefore, it is necessary to adjust the position according to the timing and to feed the laminated base material to the laminating roll 14 at just the right time to attach the laminated base material to the sheet protective film 17.

  In order to be able to adjust the timing, a mechanism for absorbing the time difference between the first conveyor and the second conveyor is necessary. For this purpose, the mechanism is provided between the first conveyor 10 and the second conveyor 13 in FIG. As shown, one or a plurality of buffer conveyors 20 are provided as necessary. Of course, like the first conveyor 10 and the second downstream conveyor 13, the buffer conveyors 20 are each provided with a vacuum mechanism (not shown) so that the laminate base material 11 is not turned up during high speed conveyance.

  Meanwhile, since the speed of each conveyor is individually controlled, the laminate substrate 11 that is not guarded by the protective film is not guarded by the protective film when passing from the upstream first conveyor 10 to the most downstream second conveyor 13. The nozzle device 12 shown in FIG. 2 is provided at the position shown in FIG. 1 in order to protect it from getting stuck in the recesses between the conveyors so that it can be conveyed successfully.

  The nozzle device 12 is a nozzle composed of a parallel air flow comprising a blowing slit nozzle 31, a flat plate guide plate, and a suction slit nozzle 32 at a position facing the conveyor conveying surface of the laminate base 11. In the case where the buffer conveyor 20 is provided from the first conveyor 10 so that the apparatus air layer 33 is formed and the laminate base material 11 does not turn up when the laminate base material 11 passes between the conveyors, the buffer conveyor 20 In the case where a plurality of them are arranged, stable conveyance while being pulled up by the parallel air flow is realized between the buffer conveyors 20 and when being transferred to the buffer conveyor 20 and the second downstream conveyor 13 at the most downstream side.

  For each laminate base material 11, the conveying speed of the upstream first conveyor 10 and the second conveyor 13 located on the most downstream side is conveyed at a speed suitable for the process preceding the first conveyor 10, respectively. Conveyor 13 is a sheet protection film 17 that is adjusted according to the position to be attached to a new sheet protection film 17 after the second conveyor 13 has passed. The laminate substrate 11 is transported at a speed in accordance with the process of winding on the leaf laminate substrate pasting film winding roll 19.

  As described above, the second conveyor 13 is also provided with a vacuum mechanism (not shown) so as to be conveyed while maintaining a state in which the second conveyor 13 is not turned up. In addition, at the delivery position of the second conveyor 13, the timing for feeding the laminate base material 11 to the sent sheet protection film 17 is matched. This is the mutual alignment when the laminate base material 11 is fed into the sheet protective film 17 and adhered by the laminate roll 14. The longitudinal center of one laminate base material 11 is attached to the sheet protective film 17. When the end portion of the sheet protection film 17 is inserted so that the sticking position of the laminate base material 11 coincides with the end of the sheet protection film 17, the end portion of the sheet protection film 17 is inserted into the regular crimping point of the laminate base material 11. Until there is a variation in the relative position of the laminate base material 11 on the second conveyor 13, when the mating sheet protective film 17 and the laminate base material 11 are pressure-bonded and bonded, the normal positional relationship is established. It may not be pasted.

  Therefore, as shown in FIG. 3, when the laminated base material 11 cut to a fixed length is transferred to the second conveyor 13 at the most downstream side, a predetermined position of the sheet protective film 17 and the front end portion of the laminated base material 11. In order to correct the positional relationship with the position of the sheet, the relative position between the second conveyor 13 and the laminate substrate 11 at the most downstream position is read by the CCD camera 50 provided immediately before the laminate substrate 11 is sent to the laminate roll 14. Based on the correction instruction obtained by the meandering correction function 41 obtained by the image pickup by the CCD camera 50, the second conveyor 13 at the most downstream side is bonded to the regular sheet protective film 17 at the normal position. In the flow direction of the material 11, the parallel movement or the laminate base is instructed to the parallel movement linear actuator 45 via the parallel movement bearing 44. By 11 the flow direction through the rotating bearing 42 rotates and moves as directed in the rotational moving linear actuator 43, the laminate substrate 11 is positioned adjusted to a normal position in crimping point.

  The laminated base material 11 and the sheet protective film 17 whose positions are adjusted are aligned by the meandering correction function 41, and are pushed out while being pasted by the laminate roll 14 through the damper roll mechanism, and then the sheet. The film is sequentially wound around a leaf laminate base material sticking film take-up roll 19 to obtain a sheet laminate base material sticking film 18 as a finished product.

Side view showing a series of flow from unwinding to winding Cross section and side view of nozzle device The figure which shows the meandering correction function provided in the most downstream conveyor

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Laminating apparatus 2 Laminate base material sticking film unwinding roll 3 Edge cutter 4 Edge winder 5 Damper mechanism 6 Half cutter 7 Film separation mechanism 8 Protective film winding roll 9 Protective film 10 1st conveyor 11 Laminated base material 12 Nozzle Device 13 Second conveyor 14 Laminating roll 15 Control sensor 17 Sheet-fed protective film 18 Sheet-fed laminated base material adhesive film 19 Sheet-fed laminated base material adhesive film take-up roll 20 Buffer conveyor 30 Slit nozzle 31 Blowing slit nozzle 32 Suction Slit nozzle 33 Nozzle device air layer 41 Meander correction function 42 Rotating bearing 43 Rotating linear actuator 44 Parallel moving bearing 45 Parallel moving linear actuator 50 CCD camera 60 Laminating substrate pasting film 61 sheets Leaf laminate base film

Claims (8)

A laminating apparatus for laminating two kinds of sheet-like materials that are continuously drawn out from a roll state, and the sheet-like material has a protective film laminated in advance on at least one surface of a sheet-like substrate to be laminated. After the sheet-like material is half-cut from the sheet-like substrate side to be laminated at a predetermined interval, the protective film of the sheet-like material is peeled to form a sheet-like substrate to be laminated, and then the other sheet In a laminating apparatus for laminating on a protective film at regular intervals, after the protective film is peeled off, a plurality of sheet-like substrate conveying conveyors that become laminates capable of independent speed control are provided in the process leading to the pressure roll apparatus. Laminate sticking apparatus characterized by being provided in series. The laminating and sticking apparatus according to claim 1, wherein the conveyor is a vacuum conveying type. Between a plurality of sheet base material transport conveyors adjacent in the flow direction of the sheet base material, an air flow is blown out by a slit nozzle from one side to the other side of the sheet base material feed direction on the surface facing the sheet base material transport surface. In addition, a slit nozzle that sucks and collects the airflow on the other side passes through between the sheet conveying surface of the sheet conveying conveyor and the flat plate surface facing the sheet conveying surface of the sheet conveying conveyor. The laminate sticking apparatus according to claim 1, wherein the laminate sticking apparatus is characterized in that Detects the position of the sheet-like substrate on the sheet substrate conveyor, and adjusts the parallel feed mechanism and the horizontal feed angle to adjust the offset amount of the sheet substrate carrier conveyor in the feeding direction of the sheet-like substrate Either or both of the rotational movement mechanisms for performing are provided, The lamination sticking apparatus in any one of Claim 1 or Claim 3 characterized by the above-mentioned. A laminating apparatus for laminating two kinds of sheet-like materials that are continuously drawn out from a roll state, and the sheet-like material has a protective film laminated in advance on at least one surface of a sheet-like substrate to be laminated. After the sheet-like material is half-cut from the sheet-like substrate side to be laminated at a predetermined interval, the protective film of the sheet-like material is peeled to form a sheet-like substrate to be laminated, and then the other sheet In a laminating apparatus for laminating on a protective film at regular intervals, after the protective film is peeled off, a plurality of sheet-like substrate conveying conveyors that become laminates capable of independent speed control are provided in the process leading to the pressure roll apparatus. A laminate sticking method characterized by being provided in series. The laminate sticking method according to claim 5, wherein the transfer conveyor is a vacuum transfer type. Between a plurality of sheet base material transport conveyors adjacent in the flow direction of the sheet base material, an air flow is blown out by a slit nozzle from one side to the other side of the sheet base material feed direction on the surface facing the sheet base material transport surface. In addition, a slit nozzle that sucks and collects the airflow on the other side passes through between the sheet conveying surface of the sheet conveying conveyor and the flat plate surface facing the sheet conveying surface of the sheet conveying conveyor. The laminate sticking method according to claim 5, wherein the laminate sticking method is characterized in that: Detects the position of the sheet-like substrate on the sheet substrate conveyor, and adjusts the parallel feed mechanism and the horizontal feed angle to adjust the offset amount of the sheet substrate carrier conveyor in the feeding direction of the sheet-like substrate Either or both of the rotational movement mechanisms for performing are provided, The lamination sticking method in any one of Claim 5 or Claim 7 characterized by the above-mentioned.

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