JP2020047767A - Feeding device of adhesive tape, feeding method, peeling device of sheet material, and peeling method - Google Patents

Abstract

To prevent winding of an adhesive tape to a feeding reel when drawing and feeding the adhesive tape.SOLUTION: An adhesive tape feeding device 1 draws an adhesive tape T from a feeding reel 10 to which the adhesive tape T is wound to guide. The adhesive tape feeding device 1 is structured by: fixing means 23 of the feeding reel 10; an elevating roller 12 that is elevated so as to trace the feeding of the adhesive tape T from the feeding reel 10; tape fixing means 11c of fixing the adhesive tape T on a downstream side of the elevating roller 12 while nipping the adhesive tape; and drawing means 30 of drawing the adhesive tape T. After the adhesive tape T has been drawn by the drawing means 30, the adhesive tape wound to the feeding reel is peeled off by forcedly moving the elevating roller 12 to be tracked and moved by drawing the adhesive tape T so as to be tensed in a drawing direction of the adhesive tape T in a state where the adhesive tape T is fixed by the reel fixing means 23 and the tape fixing means 11c.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an adhesive tape supply device and an adhesive tape supply method for supplying an adhesive tape onto a substrate or a sheet material in order to attach the adhesive tape to various substrates or sheet materials. Further, an adhesive tape is supplied onto a protective sheet temporarily attached to the surface of an adherend such as a polarizing plate or an organic EL (hereinafter, referred to as an OLED), and the adhesive tape is attached onto the protective sheet. The present invention relates to a sheet material peeling device and a peeling method for peeling a protective sheet integrally with the sheet material.

  2. Description of the Related Art Conventionally, a release tape has been applied to a protective sheet attached to the surface of a substrate such as a semiconductor wafer (hereinafter, referred to as a wafer) or a protective sheet for protecting the surface of a polarizing plate, and the protection is integrally formed with the release tape. A sheet is peeled off (for example, Patent Document 1).

Recently, when manufacturing an OLED panel, a protective sheet temporarily attached to the OLED surface is peeled off, and an optical sheet such as a polarizing plate is attached to the OLED surface.
However, the OLED is flexible, and the protective sheet temporarily attached to the surface thereof is formed of a rigid resin material, so that the protective sheet is difficult to peel.

  Therefore, when the protective sheet is peeled from the adherend with an adhesive release tape, if a release tape having a low adhesive strength is used, the rigidity of the protective sheet is lost, and the release tape is peeled off from the protective sheet and a peeling error occurs. There was a problem that occurred. Therefore, in peeling the protective sheet, a peeling tape having a strong adhesive force has been used.

JP-A-9-114384

  By the way, when peeling the protective sheet from the adherend as described above, when a strong adhesive tape is used, when supplying the release tape, the adhesive tape of the release tape causes the release tape to be supplied to the supply reel. Is sent in a state where is stuck. For this reason, a supply failure of the adhesive tape occurs, and it is necessary to stop the apparatus to eliminate the sticking of the release tape, and there is a problem that the operation rate of the apparatus decreases. Therefore, even when a peeling tape having a strong adhesive force is used, it is necessary to smoothly supply the peeling tape and minimize the downtime of the apparatus. In addition, it is necessary that the protective sheet is smoothly peeled off by attaching a release tape having an appropriate adhesive force on the protective sheet.

  In view of the above problems, an object of the present invention is to provide a tape supply device and a supply method for smoothly supplying various adhesive tapes, and an object of the present invention to provide a device and a method for releasing various sheet materials.

The invention according to claim 1 is a pressure-sensitive adhesive tape supply device that pulls out and guides the pressure-sensitive adhesive tape from a supply reel around which the pressure-sensitive adhesive tape is wound,
Fixing means for the supply reel,
An elevating roller that moves up and down following supply of the adhesive tape from the supply reel,
Tape fixing means for pinching and fixing the adhesive tape on the downstream side of the elevating roller,
Withdrawing means for pulling out the adhesive tape,
After the adhesive tape is pulled out by the pulling-out means, in a state where the adhesive tape is fixed by the reel fixing means and the tape fixing means, the lifting roller moved by following the pulling-out of the adhesive tape is pulled in the direction of pulling out the adhesive tape. This is a pressure-sensitive adhesive tape supply device that employs a configuration that is forcibly moved.

The invention according to claim 2 is a supply reel that supplies an adhesive tape to a sheet material temporarily attached to the surface of the adherend, a holding table that holds the sheet material on the surface, and the supply reel that is supplied from the supply reel. With a peeling plate that folds the adhesive tape, by sticking the adhesive tape to the sheet material, by relatively moving the holding table and the peeling plate, by folding the adhesive tape with the peeling plate, In a sheet material peeling device that peels the sheet material integrally with the adhesive tape,
Fixing means for the supply reel,
An elevating roller that moves up and down following the supply of the adhesive tape from the supply roll,
Tape fixing means for pinching and fixing the adhesive tape on the downstream side of the elevating roller,
Drawing out means for pulling out the pressure-sensitive adhesive tape so as to face the sheet material,
After the adhesive tape is pulled out by the drawer, the lifting roller is forcibly moved so that the adhesive tape is pulled in a direction in which the adhesive tape is pulled out while the adhesive tape is fixed by the reel fixing means and the tape fixing means. This is a sheet material peeling device that employs a configuration that allows the sheet material to be removed.

The invention according to claim 3 is a method for supplying an adhesive tape that draws out and guides the adhesive tape from a supply reel around which the adhesive tape is wound,
The adhesive tape from the supply reel is wound around a vertically movable roller that can move up and down following the adhesive tape via an adjacent guide roller,
By pulling out the adhesive tape from the supply reel, the elevating roller moved following the adhesive tape,
After the rotation of the supply reel is fixed and the adhesive tape is fixed on the downstream side of the elevating roller, a configuration is adopted in which the elevating roller is forcibly moved so as to be pulled in the pull-out direction of the adhesive tape. This is a method of supplying an adhesive tape.

The invention according to claim 4, wherein the adhesive tape wound on the supply reel is pulled out onto a release plate, and the adhesive tape on the release plate and the adhesive tape on which the sheet material is temporarily attached are held on a holding table while holding the adherend. A sheet material that peels the sheet material integrally with the adhesive tape by folding the adhesive tape by the release plate by relatively moving the holding table and the release plate after attaching the sheet material. In the method of peeling,
After winding the adhesive tape from the supply reel to a lift roller capable of moving up and down following the adhesive tape via an adjacent guide roller, the adhesive tape is drawn out onto a peeling plate,
Pulling out the adhesive tape from the supply reel, moving the lifting roller moved following the adhesive tape, fixing the rotation of the supply reel and fixing the adhesive tape on the downstream side of the lifting roller, This is a sheet material peeling method employing a configuration in which the elevating roller is forcibly moved so as to be pulled in a pull-out direction.

  According to the first and third aspects of the present invention, when the adhesive tape is fed, even when the adhesive tape is wound around the supply reel, the elevating roller is moved so as to be pulled in the direction in which the adhesive tape is drawn out. Therefore, the adhesive tape of the wrapped portion is peeled off, and supply failure is eliminated.

  According to the second and fourth aspects of the present invention, when the sheet material firmly adhered to the adherend is peeled off, the adhesive tape wound around the supply reel is peeled off even if a strong adhesive tape is used. Therefore, various adhesive tapes suitable for peeling the sheet material can be used.

1 is a plan view of a sheet material peeling device to which an adhesive tape supply device of the present invention is applied. FIG. 2 is a sectional view taken in the direction of arrows AA in FIG. 1. FIG. 2 is a right side view of FIG. FIG. 3 is a view taken in the direction of arrows BB in FIG. 2. FIG. 4 is an operation explanatory view of the pressure-sensitive adhesive tape supply device and the sheet material peeling device of the present invention. FIG. 4 is an operation explanatory view of the pressure-sensitive adhesive tape supply device and the sheet material peeling device of the present invention. FIG. 4 is an operation explanatory view of the pressure-sensitive adhesive tape supply device and the sheet material peeling device of the present invention. FIG. 4 is an operation explanatory view of the pressure-sensitive adhesive tape supply device and the sheet material peeling device of the present invention. FIG. 4 is an operation explanatory view of the pressure-sensitive adhesive tape supply device and the sheet material peeling device of the present invention. FIG. 4 is an operation explanatory view of the sheet material peeling device of the present invention.

Hereinafter, a sheet material peeling device to which an adhesive tape supply device according to one embodiment of the present invention is applied will be described with reference to FIGS.
As shown in the figure, the sheet material peeling device 2 includes an adhesive tape supply device 1 that supplies an adhesive tape T serving as a peeling tape, a peeling unit 30, and the like.

  As shown in FIGS. 2 to 4, the adhesive tape supply device 1 includes a machine base 3, support frames 4, 4 erected at predetermined intervals in the width direction of the machine base 3, and both support frames 4. , 4 and is surrounded by a support table 5 provided horizontally.

  Further, the adhesive tape supply device 1 includes a supply reel 10 around which the adhesive tape T is wound, a guide roller 11a for guiding the adhesive tape T, and an adhesive tape T guided by the guide roller 11a. A supply-side elevating roller 12 that can be moved up and down following the supply of the adhesive tape T, a guide roller 11b around which the adhesive tape T is wound after passing through the supply-side elevating roller 12, and a tape drawing means. It is configured to include a peeling unit 30 and the like.

  The supply reel 10 is pivotally supported by one of the support frames 4, and a motor 15 provided on the support frame 4 is connected to an appropriate pulley and a belt. The motor 15 applies an appropriate pulling force to the supply reel 10, restricts the feeding of the adhesive tape T, and applies an appropriate tension to the adhesive tape T. Further, fixing means 23 for fixing the shaft by pressing the shaft of the supply reel 10 is provided, and the shaft of the collection reel 14 is pressed by the action of a cylinder 24 connected to the fixing means 23 to rotate. To prevent it.

  In the present embodiment, the supply reel 10 is wound with an adhesive tape T as a release tape having a narrow width and a relatively strong adhesive force. The adhesive force may be such that the separator (corresponding to a sheet material) temporarily attached as surface protection of an organic EL panel (hereinafter referred to as OLED) can be peeled off. When the separator has high flexibility and is hard to peel off, the adhesive strength may be increased.

  The pressure-sensitive adhesive tape T is guided to the guide roller 31a via the opening 5a of the support plate 5 via the guide rollers 11b and 11c, and then supplied to the peeling unit 30. The adhesive tape T guided to the peeling unit 30 is wound around the collection-side elevating roller 13 via the opening 5b via the guide roller 31d, and is wound on the collection reel 14 via the guide roller 11d. ing.

  The supply-side elevating roller 12 is pivotally supported by a support plate fixed to a slider 16, and the slider 16 is connected to an elevating unit 17 erected vertically along the support frame 4. The elevating unit 17 is provided with a vertical rail 17a, and can forcibly lower the slider 16 by an appropriate driving source (for example, a cylinder or a motor). Therefore, when the slider 16 is lowered, the supply-side elevating roller 12 is lowered to pull the adhesive tape T in the pull-out direction. In addition, the supply-side elevating roller 12 is in a free state when ascending, and is capable of ascending following the supply of the spread adhesive tape T.

  The guide roller 11c is located on the downstream side of the supply-side elevating roller 12, and has a tape chuck 18 (corresponding to a tape fixing unit of the present invention) for holding and fixing an adhesive tape T near the guide roller 11c. Is provided. The tape chuck 18 is connected to a cylinder 19 and can be opened and closed by the cylinder 19.

  The recovery-side elevating roller 13 is pivotally supported by a support plate fixed to a slider 20, and the slider 20 is rotatably supported by a shaft 21 provided along the vertical direction of the support frame 4 so as to be able to move up and down. The slider 20 moves up and down in accordance with the supply of the adhesive tape T that has been wound. Therefore, as the slider 20 moves up and down, the recovery-side elevating roller 13 moves up and down.

  The collection reel 14 is connected to a motor 22 so as to take up the adhesive tape T and the separated sheet material S. Further, fixing means 25 for fixing the shaft by pressing the shaft of the collecting reel 14 is provided, and the shaft of the collecting reel 14 is rotated by pressing the shaft of the collecting reel 14 by the action of a cylinder 26 connected to the fixing means 25. Is to be prevented.

  Details of the peeling unit 30 which also functions as the tape pull-out means of the present invention will be described later. As the tape pull-out means in the present invention, various mechanisms can be adopted as long as the mechanism can pull out the adhesive tape T on the downstream side of the supply-side elevating roller 13. For example, it is possible to employ a device that holds the pressure-sensitive adhesive tape T and moves it in the direction in which the pressure-sensitive adhesive tape T is supplied, and pulls out the same.

The above is the configuration of the pressure-sensitive adhesive tape supply device 1 of the present invention. Next, the sheet material peeling device 2 to which the pressure-sensitive adhesive tape supply device 1 is applied will be described below.
In the present embodiment, an example will be described in which the sheet material S is peeled off from the adherend 6 on which the sheet material S as a protective sheet is temporarily attached to the surface of the OLED.

  The sheet material peeling device 2 is provided upright on a support plate 5 which is an upper portion of the adhesive tape supply device 1. In addition, the sheet material peeling device 2 includes a holding table 27 that suction-holds the adherend 6 on its lower surface, and an adhesive tape T that is attached to a sheet material S temporarily attached to the adherend 6, and It comprises a peeling unit 30 for peeling off the sheet material S integrally with the tape T, and a plurality of guide rollers 31a and 31d.

  On the support plate 5, two side plates 37, 37 are provided upright at appropriate intervals perpendicular to the width direction. Rails 38, 38 are laid along the front-rear direction (left-right direction in the drawing) on the inner upper portions of the side plates 37, 37 so as to face each other.

  The holding table 27 is provided with an appropriate suction hole (not shown) on the back surface side to suck and hold the adherend 6. The holding table 27 is configured to be horizontally movable by an appropriate driving mechanism (not shown), and is configured to transport the adherend 6 onto the peeling unit 30.

  The peeling unit 30, which also functions as the tape pulling-out means of the present invention, is formed between the support frames 35, 35, and sliders 39, 39 are provided on the outer side surfaces of the support frames 35, 35. The sliders 39, 39 are fitted on the rails 38, 38, respectively, and are movable along the rails 38, 38. A ball screw 40 is provided on one side plate 37 along the rail 38, and a motor 41 is connected to one end of the ball screw 40. A nut member 42 is provided on one side of the support frame 35, and the nut member 42 is screwed to the ball screw 40. Therefore, the peeling unit 30 is horizontally movable along the rail 38 by driving the motor 41 in the forward and reverse directions, and pulls out the adhesive tape T at the time of its forward movement. .

  Further, the peeling unit 30 guides the peeling plate 32 that peels off the sheet material S integrally with the adhesive tape T by rapidly folding the sheet material S stuck on the adhesive tape T, and the adhesive tape T. And two guide rollers 31b and 31c, and a tape chuck 33 for holding and fixing the adhesive tape T wound around the guide roller 31c.

  The peeling plate 32 is formed of a rectangular thin plate, and both side surfaces are supported by support frames 35. The front end of the lower surface of the peeling plate 32 is formed at an acute angle, and the sheet material S adhered to the adhesive tape T is peeled off from the adherend 6 by rapidly folding the adhesive tape T. ing.

  The guide roller 31a is rotatably supported between two columns 7, 7 erected on the support plate 5, and guides the supplied adhesive tape T horizontally on the peeling plate 32.

  A guide roller 31b is pivotally supported below the peeling plate 32 at a front portion between the support frames 35, and guides the adhesive tape T rearward. Behind the guide roller 31b, a guide roller 31c is pivotally supported between the support frames 35, 35 to guide the adhesive tape T to the front guide roller 31d.

Behind the guide roller 31c, a support plate 36 is suspended between the support frames 35, 35, and a cylinder 34 is fixed to the support plate 36. A tape chuck 33 is provided on the cylinder 34 so as to face the guide roller 31c. The tape chuck 33 nips the adhesive tape T between the cylinder 34 and the guide roller 31c by the action of the cylinder 34. It is designed to be fixed.

  The guide roller 31d is pivotally supported on the upper portions of two columns 8, 8 erected in front of the support plate 5, and lowers the adhesive tape T guided by the guide roller 31c to a lower collecting side elevating roller. 13. A tape chuck 43 is provided on the front side of the guide roller 31d, and is connected to a cylinder 44 provided on a support frame between the columns 8 and 8. The tape chuck 43 nips and fixes the adhesive tape T with the guide roller 31 d by the action of the cylinder 44.

  The adhesive tape T is pulled out by moving the peeling unit 30 forward with the tape chuck 33 closed and the adhesive tape T fixed.

  The above is the configuration of the pressure-sensitive adhesive tape supply device and the sheet material peeling device of the present invention. Next, the supply operation of the pressure-sensitive adhesive tape T and the sheet material peeling operation will be described with reference to FIGS.

  FIG. 5 shows an initial state of the peeling operation in the sheet material peeling device 2, and the peeling unit 30 is located at the forward position. Prior to this initial state, the adherend 6 is suction-held on the lower surface of the holding table 27, and the adherend 6 is transported onto the peeling plate 32. The adherend 6 is positioned on the adhesive tape T on the peeling plate 32 such that one of the apexes is the tip as shown in FIG. 10, and the diagonal direction of the adherend 6 and the supply of the adhesive tape T The adherend 6 is pressed and adhered onto the adhesive tape T so that the directions match. At this time, the tape chucks 18 and 43 are closed and the adhesive tape T is fixed. Further, the fixing means 23 on the supply side and the fixing means 25 on the collection side are also closed, and the supply reel 10 and the collection reel 14 are fixed. The supply-side lifting roller 16 is located at the lowered position, and the collection-side lifting roller 13 is located at the raised position.

  Next, when the peeling unit 30 is retracted with the holding table 27 fixed as shown in FIG. 6, the adherend 6 is still held by the holding table 27, so that the adhesive tape T is pulled to release the peeling plate 32. Is sharply folded at the leading end of the sheet material, and the sheet material S is peeled off integrally with the adhesive tape T.

  As shown in FIG. 7, the tape chucks 18 and 43 are released, and the tape chuck 33 is closed. Further, the fixing means 23 is released (the fixing means 25 is closed). In this state, the peeling unit 30 advances from the two-dot chain line position to the solid line position. As a result, the adhesive tape T is pulled from the supply reel 10, and the supply-side elevating roller 12 follows and rises. At this time, when the adhesive force of the adhesive tape T is high, the adhesive tape T may be wound as shown in the figure without peeling even if the back tension is applied by the motor 15. It should be noted that the looseness of the illustrated adhesive tape T is exaggerated for easy understanding. On the other hand, the supply-side elevating roller 12 on the collection side descends following the adhesive tape T.

  Next, as shown in FIG. 8, the tape chucks 18 and 45 are closed, the adhesive tape T between the guide rollers 11c and 31d is fixed, and the tape chuck 33 is released.

  As shown in FIG. 9, the fixing unit 25 is released, and the collection reel 14 is driven to wind up, so that the collection-side elevating roller 13 moves up following the adhesive tape T. When the collecting-side elevating roller 13 rises by a predetermined amount, an appropriate sensor (not shown) detects this and stops winding. On the other hand, the supply reel 10 is fixed by closing the fixing means 23. In this state, the supply-side elevating roller 12 is forcibly lowered to the lower end, and the adhesive tape T wound around the supply reel 10 is peeled off and loosened. Will be resolved. As described above, since the adhesive tape T wound around the supply reel 10 is forcibly peeled off, the adhesive force of the adhesive tape T is increased even if the sheet material S is difficult to be peeled off from the adherend 6 in particular. Can be.

  As described above, the sheet material peeling device 2 returns to the initial state, and the next adherend 6 is transported and used for peeling the sheet material S. The sheet material S is continuously peeled off from the adherend 6 by repeating the above steps.

  The above is the pressure-sensitive adhesive tape supply device and the sheet material peeling device according to one embodiment of the present invention. However, the present invention is not limited to the above-described embodiment, and can be appropriately changed within the scope of the invention. For example, in the present embodiment, the adhesive tape supply device is applied as a sheet material peeling device, but the present invention can also be applied to attaching an adhesive tape to various substrates. Further, in the present embodiment, a narrow adhesive tape is used, but the width of the adhesive tape can be appropriately changed. In addition, it can be preferably used for various adhesive tapes and adhesive tapes which are strongly adhered and the tape is not easily peeled off from the supply reel during supply. The present invention can be widely applied to various tapes, not limited to strongly adhesive tapes.

S Sheet material T Adhesive tape 1 Adhesive tape supply device 2 Sheet material peeling device 3 Machine stand 4 Support frame 5 Support stand 5a Opening 5b Opening 6 Adherend 7 Support 8 Support 10 Supply reel 11a Guide roller 11b Guide roller 11c Guide roller 11d Guide roller 12 Lifting roller 13 Lifting roller 14 Recovery reel 15 Motor 16 Slider 17 Lifting unit 17a Rail 18 Tape chuck 19 Cylinder 20 Slider 22 Motor 23 Fixing means 24 Cylinder 25 Fixing means 26 Cylinder 27 Holding table 30 Peeling unit 31a Guide roller 31b Guide Roller 31c Guide roller 31d Guide roller 32 Peeling plate 33 Tape chuck 34 Cylinder 35 Support frame 36 Support plate 37 Side plate 38 Rail 39 Slider 40 Ball screw 41 Motor 42 Nut 43 tape chuck 44 cylinder

Claims (4)

In an adhesive tape supply device that pulls out and guides the adhesive tape from a supply reel wound with the adhesive tape,
Fixing means for the supply reel,
An elevating roller that moves up and down following supply of the adhesive tape from the supply reel,
Tape fixing means for pinching and fixing the adhesive tape on the downstream side of the elevating roller,
Withdrawing means for pulling out the adhesive tape,
After the adhesive tape is pulled out by the pulling-out means, in a state where the adhesive tape is fixed by the reel fixing means and the tape fixing means, the lifting roller moved by following the pulling-out of the adhesive tape is pulled in the direction of pulling out the adhesive tape. The adhesive tape supply device characterized in that the adhesive tape is forcibly moved as described above. A supply reel that supplies the adhesive tape to the sheet material temporarily attached to the surface of the adherend, a holding table that holds the sheet material on the surface, and a release plate that folds the adhesive tape supplied from the supply reel. By attaching the adhesive tape to the sheet material, by moving the holding table and the release plate relatively, the adhesive tape is folded back by the release plate, the sheet material is the adhesive tape In a sheet material peeling device that peels off integrally with
Fixing means for the supply reel,
An elevating roller that moves up and down following the supply of the adhesive tape from the supply roll,
Tape fixing means for pinching and fixing the adhesive tape on the downstream side of the elevating roller,
Drawing out means for pulling out the pressure-sensitive adhesive tape so as to face the sheet material,
After the adhesive tape is pulled out by the drawer, the lifting roller is forcibly moved so that the adhesive tape is pulled in a direction in which the adhesive tape is pulled out while the adhesive tape is fixed by the reel fixing means and the tape fixing means. A sheet material peeling apparatus characterized in that the sheet material is peeled off. In a method of supplying an adhesive tape that pulls out and guides the adhesive tape from a supply reel around which the adhesive tape is wound,
The adhesive tape from the supply reel is wound around a vertically movable roller that can move up and down following the adhesive tape via an adjacent guide roller,
By pulling out the adhesive tape from the supply reel, the elevating roller moved following the adhesive tape,
After fixing the rotation of the supply reel and fixing the adhesive tape on the downstream side of the elevating roller, the elevating roller is forcibly moved so as to be pulled in the pull-out direction of the adhesive tape. To supply adhesive tape. After pulling out the adhesive tape wound on the supply reel onto the release plate, and attaching the adhesive tape on the release plate and the sheet material while holding the adherend to which the sheet material is temporarily attached on the holding table, By moving the holding table and the release plate relatively, the adhesive tape is folded back by the release plate, the sheet material peeling method of peeling the sheet material integrally with the adhesive tape,
After winding the adhesive tape from the supply reel to a lift roller capable of moving up and down following the adhesive tape via an adjacent guide roller, the adhesive tape is drawn out onto a peeling plate,
After pulling out the adhesive tape from the supply reel, moving the elevating roller moved following the adhesive tape, fixing the adhesive tape downstream of the elevating roller while fixing the rotation of the supply reel, A method for peeling a sheet material, wherein the lifting roller is forcibly moved so as to be pulled in a pull-out direction.

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