JP4373372B2 - Laminate sticking apparatus and method - Google Patents

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 in a continuous manner, the dimensional relationship is such that the predetermined edges remain, and then a sheet-like substrate that is a laminated substrate after being cut into sheets is pasted on the sheet protection film. There was a problem of wearing processing .

The present invention first one protective film and Ramine preparative substrate and comprising a sheet-like base material was unrolled laminate substrate adhered films with integral, longitudinally laminated substrate and for each dimension to be the dimensions of the sheet partial leave half cut, and at the same time continuously peeling the protective film, the laminate substrate to be separated for each half cut, while controlling the positional relationship, after cutting the other sheet protective film two leaves The present invention provides an apparatus and a method for manufacturing a single-wafer laminate base material sticking film after being cut into sheets and transported to a laminating roll to be pasted as a laminate base material.

  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 desirable to transport the material as fast as possible. Accordingly, the buffer conveyor for adjustment inserted between the upstream first conveyor, the most downstream second conveyor, and the most downstream 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 adjustment buffer conveyor and the most downstream second conveyor inserted between the upstream first conveyor and the most downstream second 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 second downstream 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 substrate is stable from the end of each conveyor to the other conveyors so that the laminate does not turn up when passing between the ends 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 by the laminate substrate alone, 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 final product of multiple laminated substrates is not the same rectangular size of one laminated substrate and the other laminated substrate. put order, so as to position the swing amount only in the middle of the length of the該枚leaves the protective film, it stuck as positioned at the center provides certain edge. 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.

Further, while the laminated substrates are transported by conveyors, the conveying speed, and the amount of movement of the Cartesian direction to the laminate substrate feeding direction, further configured to allow control the angle of the laminated substrate feeding direction to, in a controlled a relative positional relationship between the other laminate-substrate suitability, to reach the crimping point, sticking start position is shifted in the desired as a so-called "picture frame paste" 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 it reaches the specified length in accordance 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. After the conveyor 13 is fed and adjusted in accordance with the position to be attached to a new sheet protection film 17 after the second conveyor 13 has passed , the sheet protection film 17 passes from the sheet protection film unwinding roll 18 through the laminating roll 14. The laminate substrate 11 is transported at a speed in accordance with the process of winding the sheet on the sheet laminate substrate pasting film winding film 19 after being cut into sheets.

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 sheet, the sheet protection film 17 is attached to the regular pressure bonding point of the laminate base material 11 after being cut into a sheet. If the relative position of the cut laminate base material 11 on the second conveyor 13 is uneven until the end of the sheet is inserted, the counterpart sheet protective film 17 and the laminate base material 11 are pressure-bonded. When pasting, there is a possibility that it is not pasted in a regular positional relationship.

Accordingly, as shown in FIG. 3, when the laminated base material 11 after being cut into a sheet cut to a fixed length is transferred to the second downstream conveyor 13, a predetermined position and a sheet of the sheet protection film 17 are obtained. In order to correct the positional relationship with the position of the front end portion of the laminate base material 11 after being cut into the leaves, the second most downstream is provided by the CCD camera 50 provided at a position immediately before the laminate base material 11 is sent to the laminate roll 14. The relative position of the laminated base material 11 after being cut into the conveyor 13 and the sheet is read, and the second conveyor 13 on the most downstream side is imaged by the CCD camera 50 so as to be bonded to the regular sheet protective film 17 at the normal position. obtained via a mobile bearing 44 parallel to the orthogonal direction against the flow direction of the laminate substrate 11 after cut sheet based on the correction instruction obtained by meandering correction function 41 parallel shift Translation as directed to use linear actuator 45, or by rotational movement as instructed to the rotary movement for the linear actuator 43 through the rotary bearing 42 in the flow direction of the laminate substrate 11 after cut sheet The laminated base material 11 after being cut into sheets at the crimping point is adjusted so as to be in a normal position.

By the meandering correction function 41, a laminated substrate 11 after the cutting and sheet protective film 17 is aligned with the sheet that has been adjusted position, by laminating rolls 14, while being adhered two sheets, extruded Dan rolled Thereafter, the film is sequentially wound around a laminate base material sticking film take-up roll 19 after being cut into single sheets, and a single-wafer laminated base material sticking film 61 as a finished product is obtained.

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

1 laminating apparatus 2 laminated substrate adhered film unwinding roll 3 edge cutter 4 edge winder 5 Dan Saroru mechanism 6 half-cutter 7 film separation mechanism 8 protective film take-up roll 9 protective film 10 first conveyor 11 laminated substrate 12 Nozzle device 13 Second conveyor 14 Laminating roll 15 Control sensor 17 Sheet protection film 18 Sheet protection film unwinding roll 19 Sheet laminating substrate pasting film winding 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 movement bearing 45 Parallel movement linear actuator 50 CCD camera 60 Laminate substrate adhesive film 61 Leaf laminate base material adhered film

Claims (8)

After unwinding a sheet-like material base material that integrates two types of protective film and laminate base material from the unwinding roll, cutting the laminate base material piece into sheets and peeling off the protective film, the other sheet A laminating apparatus for laminating a laminated base material after being cut into a sheet to a sheet protective film unwound from a leaf protective film unwinding roll, and winding the laminated base material after being cut into a sheet into a winding roll. , the sheet-like substrate made of a laminate-substrate at least one surface has been stuck beforehand protective film, the longitudinal sheet from the sheet-like substrate side which is the base material sheet and the laminate substrate after half-cut at a predetermined interval for each dimension to be sized, and separating the protective film of the sheet Jomotozai, after the laminate substrate, to the other sheet-like protective film on, Awa attached at regular intervals In laminating apparatus that, after removing the protective film, the steps leading to the press roll apparatus for crimping a sheet protective film, in that a speed controllable Ramine preparative substrates for conveyors in series to a plurality of independent A laminate laminating device. Characterized by using a vacuum mechanism before Kiko conveyer, laminating attaching apparatus according to claim 1. Air flow between a plurality of conveyors adjacent to the flow direction of the sheet-like substrate, on the surface facing the base material sheet conveyance surface, from one of the feed direction of the sheet-like substrate by a slit nozzle for blowing toward the other the balloon, most of the air flow after the balloon is passed between flat plate surface located opposite the surface feed transportable Okumen and those 該搬 sheet Jomotozai conveyor, further sucked and recovered the airflow at its other side The laminate sticking apparatus according to claim 1, wherein a suction slit nozzle is arranged. The co detects the position of the sheet-like base material on conveyer, the sheet-like base Zaiko conveyors and translation mechanism for adjusting an offset amount of the orthogonal direction against the feeding direction of the sheet-like substrate, horizontal 4. The laminate sticking apparatus according to claim 1, wherein either or both of rotational movement mechanisms for adjusting the feed angle are provided. After unwinding a sheet-like material base material that integrates two types of protective film and laminate base material from the unwinding roll, cutting the laminate base material piece into sheets and peeling off the protective film, the other sheet A laminating method in which a laminated base material after cutting is attached to a single wafer on a single-wafer protective film unwound from a leaf protective film unwinding roll, and the laminated base material after being cut into a single sheet is wound on a winding roll. , laminate-and advance protective film is stuck on at least one surface of the substrate to become sheet-like substrate, in the longitudinal direction of the sheet from the sheet-like substrate side which is the base material sheet and the laminate base material after half-cut at a predetermined interval for each dimension to be sized, and separating the protective film of the sheet Jomotozai, after the laminate substrate, to the other sheet-like protective film on, Awa attached at regular intervals In laminating how, after removing the protective film, the steps leading to the press roll apparatus for crimping a sheet protective film, in that a speed controllable Ramine preparative substrates for conveyors in series to a plurality of independent Characteristic laminate sticking method. Characterized by using a vacuum mechanism before Kiko conveyer, laminated attaching method according to claim 5. Air flow between a plurality of conveyors adjacent to the flow direction of the sheet-like substrate, on the surface facing the base material sheet conveyance surface, from one of the feed direction of the sheet-like substrate by a slit nozzle for blowing toward the other the balloon, most of the air flow after the balloon is passed between flat plate surface located opposite the surface feed transportable Okumen and those 該搬 sheet Jomotozai conveyors, further sucked and recovered the airflow at its other side The laminate sticking method according to claim 5, wherein a suction slit nozzle is arranged. The co detects the position of the sheet-like base material on conveyer, the sheet-like base Zaiko conveyors and translation mechanism for adjusting an offset amount of the orthogonal direction against the feeding direction of the sheet-like substrate, horizontal Either or both of the rotational movement mechanisms for adjusting a feed angle are provided, The lamination sticking method in any one of Claim 5 or Claim 7 characterized by the above-mentioned.

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