Sheet pasting device and sheet pasting method

Abstract

To provide a sheet sticking device and a sheet sticking method capable of sticking an adhesive sheet so as to reduce warpage of an adherend as much as possible.SOLUTION: A sheet sticking device EA includes first sticking means 20 for sticking a first adhesive sheet AS1 to one surface WK1 of an adherend WK such that the sticking direction to the adherend WK is the first sticking direction DR1, and second sticking means 30 for sticking a second adhesive sheet AS2 onto the first adhesive sheet AS1 stuck to the adherend WK such that the sticking direction to the adherend WK is the second sticking direction DR2, and direction adjusting means 40 is further provided for adjusting the sticking direction such that the second sticking direction DR2 does not match the first sticking direction DR1.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a sheet sticking device and a sheet sticking method. [Background technology]

[0002] BACKGROUND ART Adherend processing apparatuses (sheet sticking apparatuses) that stick a plurality of adhesive sheets to an adherend are known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-68326 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the sheet application device described in Patent Document 1, a breakage prevention sheet AS2 (first adhesive sheet) is applied to an adherend WK (adherend), and then a first adhesive sheet AS1 (second adhesive sheet) is applied on top of the first adhesive sheet. Therefore, the application direction of the second adhesive sheet (second application direction) and the application direction of the first adhesive sheet (first application direction) are aligned. When multiple adhesive sheets are applied to an adherend with their application directions aligned, the residual stresses of the multiple adhesive sheets are combined, causing the adherend to warp. This disadvantage is particularly pronounced when the adherend is thin.

[0005] An object of the present invention is to provide a sheet application device and a sheet application method that can apply an adhesive sheet to an adherend in a manner that minimizes warping of the adherend. [Means for solving the problem]

[0006] The present invention employs the configurations described in the claims. [Effects of the Invention]

[0007] According to the present invention, the attachment direction of a subsequently attached adhesive sheet is adjusted so that it does not match the attachment direction of a previously attached adhesive sheet, thereby reducing the summation of residual stresses from multiple adhesive sheets and enabling the adhesive sheets to be attached in a manner that minimizes warping of the adherend. [Brief explanation of the drawings]

[0008] [Figure 1] 1A and 1B are explanatory diagrams of a sheet sticking device according to an embodiment of the present invention and an operation explanatory diagram of the device. [Figure 2] 1A and 1B are explanatory diagrams of a sheet sticking device and an explanatory diagram of the operation of the device. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In this embodiment, the X-axis, Y-axis, and Z-axis are orthogonal to each other, and the X-axis and Y-axis are axes within a predetermined plane, and the Z-axis is an axis orthogonal to the predetermined plane. Furthermore, in this embodiment, the view from the front in Fig. 1 parallel to the Y-axis is used as the reference, and when directions are indicated without specifying the figure, "up" is the direction of the Z-axis arrow, "down" is the opposite direction, "left" is the direction of the X-axis arrow, "right" is the opposite direction, "front" is the front direction in Fig. 1 parallel to the Y-axis, and "rear" is the opposite direction.

[0010] The sheet application apparatus EA of the present invention comprises an adherend transport means 10 that performs an adherend transport step of transporting an adherend WK, a first attachment means 20 that performs a first attachment step of attaching a first adhesive sheet AS1 to one surface WK1 of the adherend WK so that the attachment direction relative to the adherend WK is a first attachment direction DR1, a second attachment means 30 that performs a second attachment step of attaching a second adhesive sheet AS2 onto the first adhesive sheet AS1 attached to the adherend WK so that the attachment direction relative to the adherend WK is a second attachment direction DR2, and a direction adjustment means 40 that performs a direction adjustment step of adjusting the attachment direction so that the second attachment direction DR2 does not coincide with the first attachment direction DR1. In this embodiment, a third adhesive sheet AS3 is attached to the other surface WK2 of the adherend WK so that the attachment direction relative to the adherend WK is a third attachment direction DR3, and the sheet attachment device EA is equipped with an attachment direction recognition means 50 that performs an attachment direction recognition process that recognizes the third attachment direction DR3, an inversion means 60 that performs an inversion process that turns the adherend WK upside down, and a sheet peeling means 70 that performs a sheet peeling process that peels the third adhesive sheet AS3 from the adherend WK so that the peeling direction relative to the adherend WK is a predetermined peeling direction DR4. Here, a V-shaped notch VN is formed on the outer edge of the adherend WK, as shown in the diagram marked AA in Figure 1(A), and the direction parallel to the notch center line NL connecting the center between the two peaks VNT of the notch VN and the valley VNB of the notch VN is the third attachment direction DR3.

[0011] The adherend transport means 10 is provided with a linear motor 11 as a driving device having a slider 11A that moves in the X-axis direction.

[0012] The first attaching means 20 includes a support roller 21 for supporting the first web RS1 having a strip-shaped first adhesive sheet base material BS1 temporarily attached to the first release sheet RL1, a guide roller 22 for guiding the first web RS1, a cutting means 23 for forming a closed-loop first cut CU1 in the first adhesive sheet base material BS1 and forming the first adhesive sheet AS1 and the first unnecessary sheet US1 on the inside and outside of the first cut CU1, a peeling plate 24 as peeling means for folding back the first release sheet RL1 at a peeling edge 24A and peeling the first adhesive sheet AS1 from the first release sheet RL1, and a cutting means for attaching the first adhesive sheet to an object to be attached. The sheet sticking device EA is provided with a pressure roller 25 as a pressing means for pressing and sticking AS1, a drive roller 26 supported by an output shaft (not shown) of a rotary motor 26A as a driving device and for sandwiching the first peel-off sheet RL1 and the unnecessary sheet US1 between it and a pinch roller 26B, and a recovery roller 27 as a recovery means supported by an output shaft (not shown) of the driving device and for constantly applying a predetermined tension to the first peel-off sheet RL1 and the unnecessary sheet US1 present between it and the pinch roller 26B while the sheet sticking device EA is operating automatically, and for recovering the first peel-off sheet RL1 and the unnecessary sheet US1. The cutting means 23 is supported by the output shaft 23B of a rotary motor 23A as a driving device, and includes a die-cut roller 23C having a flat loop-shaped cutting blade 23D as a cutting member supported on its outer surface, and an anvil roller 23E that rotates synchronously with the die-cut roller 23C.

[0013] The second attaching means 30 has the same configuration as the first attaching means 20, and can be explained by changing the 2 in the tens digit of the numbering in the description of the configuration of the first attaching means 20 to a 3, changing AS1, BS1, CU1, RL1, RS1 and US1 to AS2, BS2, CU2, RL2, RS2 and US2, respectively, and replacing "first" in each configuration with "second", so it is only illustrated and a detailed description of the configuration is omitted.

[0014] The direction adjustment means 40 includes a rotary motor 41 as a driving device supported by the slider 11A, and a support table 42 supported by the output shaft 41A of the rotary motor 41 and having a holding surface 42A that can be sucked and held by a pressure reducing means (not shown) such as a pressure reducing pump or a vacuum ejector. The support table 42 has a notch 42B formed therein. In this embodiment, the direction adjusting means 40 adjusts the attaching direction so that the first attaching direction DR1 and the second attaching direction DR2 do not coincide with the third attaching direction DR3. In addition, the direction adjusting means 40 adjusts the peeling direction DR4 so that it does not coincide with any of the first attaching direction DR1, the second attaching direction CR2, and the third attaching direction DR3.

[0015] The attachment direction recognition means 50 is equipped with a detection device 51 that is configured with imaging means such as a camera or a projector, and various sensors such as an optical sensor or an ultrasonic sensor. The attachment direction recognition means 50 detects the shape and position of the notch VN, thereby recognizing the notch center line NL from the positions of both peaks VNT of the notch VN and the position of the valley VNB of the notch VN, and recognizing the third attachment direction DR3.

[0016] The inversion means 60 includes a rotary motor 62 as a driving device supported by a slider 61A of a linear motor 61 as a driving device, and a chuck motor 63 as a driving device (holding means) supported by the output shaft 62A and having a pair of chuck arms 63A that hold the integrated object UP.

[0017] The sheet peeling means 70 includes a support roller 71 that supports the strip-shaped peeling tape PT as a holding means, a guide roller 72 that guides the peeling tape PT, a peeling roller 74 that is rotatably supported on the output shaft 73A of a linear motor 73 that serves as a driving device, a drive roller 75 that is supported on the output shaft (not shown) of a rotary motor 75A that serves as a driving device and that clamps the peeling tape PT between itself and a pinch roller 75B, and a recovery roller 76 that is driven by a driving device (not shown) and that constantly applies a predetermined tension to the peeling tape PT that is present between itself and the pinch roller 75B while the sheet application device EA is operating automatically, and that serves as a recovery means for recovering the peeling tape PT.

[0018] The operation of the sheet sticking apparatus EA will now be described. 1(A), in which each component is arranged in the initial position shown by the solid line, a user of the sheet bonding apparatus EA (hereinafter simply referred to as "user") sets the first and second webs RS1 and RS2 as shown in the figure, and then inputs a signal to start automatic operation via an operation means (not shown) such as an operation panel or a personal computer. Then, the first and second bonding means 20 and 30 drive the rotary motors 23A, 26A and 33A, 36A, which rotate the die-cut rollers 23C and 33C to form first and second incisions CU1 and CU2 in the first and second sheet base materials BS1 and BS2, while unwinding the first and second webs RS1 and RS2. When the leading ends of the leading first and second adhesive sheets AS1, AS2 in the payout direction formed by the first and second incisions CU1, CU2 have been peeled off by a predetermined length at peeling edges 24A, 34A of peeling plates 24, 34, first and second attaching means 20, 30 stop driving rotating motors 23A, 26A and 33A, 36A. Next, when a user or conveying means (not shown) such as an articulated robot or belt conveyor places adherend WK on support table 42 as shown in FIG. 1(B), direction adjusting means 40 drives pressure reducing means (not shown) to begin suction and holding adherend WK on holding surface 42A. Thereafter, the attachment direction recognition means 50 drives the detection device 51 to detect the shape, direction, position, etc. of the notch VN and recognize the third attachment direction D3 from the direction of the notch center line NL, and then the direction adjustment means 40 drives the rotation motor 41 based on the recognition result of the attachment direction recognition means 50 to rotate the support table 42 so that the notch center line NL is parallel to the X-axis, as shown in Figure 1(C). Next, when a user or a transport means (not shown) such as an articulated robot or a belt conveyor places a ring frame RF as a frame member on the support table 42, as shown in Figures 1(A) and 1(C), the direction adjustment means 40 drives the pressure reduction means (not shown) to begin suction and holding of the ring frame RF on the holding surface 42A.

[0019] Then, the direction adjustment means 40 drives the rotation motor 41 to rotate the support table 42 clockwise so that the notch center line NL is inclined 30° relative to the X-axis, as shown in FIG. 2(A). Then, the adherend transport means 10 drives the linear motor 11 to move the support table 42 to the left. Next, when the adherend WK reaches a predetermined position relative to the first bonding means 20, the first bonding means 20 drives the rotation motors 23A and 26A to form a new first incision CU1 in the first sheet substrate BS1 while unwinding the first web RS1 in accordance with the movement speed of the support table 42. As shown by the two-dot chain line in FIGS. 1(A) and 2(A), the pressure roller 25 bonds the first adhesive sheet AS1 to the adherend WK. As a result, the first adhesive sheet AS1 is bonded to the adherend WK in the first bonding direction DR1, which does not coincide with the third bonding direction DR3. Thereafter, when the leading edge in the payout direction of the next first adhesive sheet AS1 following the leading first adhesive sheet AS1 has been peeled off by a predetermined length at peeling edge 24A of peeling plate 24, first attaching means 20 stops driving rotation motors 23A and 26A. Next, when support table 42 moves out from under pressure roller 25, direction adjusting means 40 drives rotation motor 41 to rotate support table 42 clockwise so that notch center line NL is inclined 60° with respect to the X-axis, as shown in FIG. 2(B). The support table 42 continues to move leftward thereafter, and when the ring frame RF reaches a predetermined position relative to the second joining means 30, the second joining means 30 drives the rotation motors 33A, 36A to form a new second incision CU2 in the second sheet base material BS2 while unwinding the second web RS2 in accordance with the movement speed of the support table 42, and the second sheet AS2 is joined to the ring frame RF and the first adhesive sheet AS1 by the pressure roller 35 to form an integrated object UP, as shown by the two-dot chain lines in Figures 1(A) and 2(B). As a result, the second adhesive sheet AS2 is joined to the adherend WK in a second joining direction DR2 that does not coincide with either the first joining direction DR1 or the third joining direction DR3. Then, when the leading end portion in the payout direction of the next second adhesive sheet AS2 following the leading second adhesive sheet AS2 is peeled off by a predetermined length at the peeling edge 34A of the peeling plate 34, the second attaching means 20 stops driving the rotation motors 33A and 36A.

[0020] Next, when the support table 42 moves out from under the pressure roller 35, the direction adjustment means 40 drives the rotation motor 41 to return the support table 42 to its initial position relative to the rotation motor 41. The support table 42 continues to move leftward, and when the notch 42B reaches the front of the chuck arm 63A, the adherend conveying means 10 stops driving the linear motor 11, and then the inverting means 60 drives the chuck motor 63 to hold the integrated object UP with the chuck arm 63A, as shown by the two-dot chain line in FIG. 2(C). After that, the direction adjustment means 40 stops driving the pressure reducing means (not shown) to release the suction and holding of the integrated object UP on the holding surface 42A, and then the inverting means 60 drives the linear motor 61 and the rotation motor 62 to lift the integrated object UP held by the chuck arm 63A to a predetermined height and turn the integrated object UP upside down, as shown by the two-dot chain line in FIG. 2(C). Next, the inversion means 60 drives the linear motor 61, and places the integrated object UP on the holding surface 42A with the second adhesive sheet AS2 facing the holding surface 42A.The direction adjustment means 40 then drives the pressure reduction means (not shown) to begin suction-holding the integrated object UP on the holding surface 42A, and the inversion means 60 then drives the chuck motor 63 to return the chuck arm 63A to its initial position.

[0021] The adherend transport means 10 then drives the linear motor 11 to move the support table 42 to the left, and when the left end of the third adhesive sheet AS3 in the integrated object UP reaches just below the bottom end of the peeling roller 74, as shown by the two-dot chain line in Figure 1(A), the driving of the linear motor 11 is stopped. Next, the direction adjustment means 40 drives the rotary motor 41 to rotate the support table 42 clockwise so that the notch center line NL is inclined 45° with respect to the X-axis, as shown in Figure 2(D). Thereafter, the sheet peeling means 70 drives the linear motor 73 to lower the peeling roller 74 and apply the peeling tape PT to the left edge of the third adhesive sheet AS3. The adherend transport means 10 and the sheet peeling means 70 then drive the linear motor 11 and the rotary motor 75A to feed the peeling tape PT toward the recovery roller 76 in accordance with the speed at which the support table 42 moves leftward, peeling the third adhesive sheet AS3 from the adherend WK, as shown by the two-dot chain line in FIG. 2(D) and in FIG. 2(E). As a result, the third adhesive sheet AS3 is peeled from the adherend WK in a predetermined peeling direction DR4 that does not coincide with any of the first bonding direction DR1, the second bonding direction DR2, or the third bonding direction DR3. Next, when the entire third adhesive sheet AS3 has been peeled from the adherend WK, the sheet peeling means 70 drives the linear motor 73 to return the peeling roller 74 to its initial position, and then stops driving the rotary motor 75A. Then, when the support table 42 moves out from under the peeling roller 74, the adherend transport means 10 stops driving the linear motor 11, and the direction adjustment means 40 drives the rotation motor 41 to return the support table 42 to its initial position relative to the rotation motor 41. Next, the direction adjustment means 40 stops driving the pressure reduction means (not shown) to release the suction and hold of the integrated object UP on the support surface 42A, and then when the user or the transport means (not shown) transports the integrated object UP to the next process, the adherend transport means 10 drives the linear motor 11 to return the support table 42 to its initial position, and the same operations as those described above are repeated thereafter.

[0022] According to the above-described embodiment, the attachment direction (second attachment direction DR2) of the adhesive sheet (second adhesive sheet AS2) to be attached later is adjusted so that it does not match the attachment direction (first attachment direction DR1) of the adhesive sheet (first adhesive sheet AS1) that was attached earlier, thereby reducing the addition of residual stresses from multiple adhesive sheets and allowing the adhesive sheets to be attached in a way that minimizes warping of the adherend WK.

[0023] The means and steps of the present invention are not limited in any way as long as they can perform the operations, functions, or steps described for those means and steps, and are in no way limited to the components and steps of a single embodiment shown in the above embodiment. For example, the first attachment means may be any means that attaches a first adhesive sheet to one side of an adherend so that the attachment direction to the adherend is the first attachment direction, and is not limited in any way as long as it is within the technical scope in light of the common general technical knowledge at the time of filing (the same applies to other means and steps).

[0024] The adherend transport means 10 may be composed of separate units for transporting the adherend WK to the first attaching means 20, for transporting the adherend WK to the second attaching means 30, for transporting the adherend WK to the reversing means 60, and for transporting the adherend WK to the sheet peeling means 70, or any of these may be composed of a common unit. The adherend transport means 10 may move the first and second attachment means 20, 30 without or while moving the adherend WK and attach the first and second adhesive sheets AS1, AS2 to the adherend WK, or may move the sheet peeling means 70 without or while moving the adherend WK and peel the third adhesive sheet AS3 from the adherend WK, and may or may not be included in the sheet attachment apparatus EA of the present invention; if it is not included, the adherend WK can be transported by another device.

[0025] The first and second attachment means 20, 30 may not employ cutting means 23, 33, but may instead form closed-loop slits in advance in the strip-shaped first and second adhesive sheet base materials BS1, BS2 temporarily attached to the strip-shaped first and second release sheets RL1, RL2, so that the predetermined areas partitioned by the slits become the first and second adhesive sheets AS1, AS2, by unwinding the first and second webs RS1, RS2 and attaching the first and second adhesive sheets AS1, AS2 to the adherend WK or the like, or may control the speed and tension of the unwinding first and second webs RS1, RS2 to unwind the first and second adhesive sheets AS1, AS2 to the adherend WK or the like. The application tension may be controlled so that tension is applied or not applied, the first and second adhesive sheets AS1, AS2 may be peeled from the first and second webs RS1, RS2 that have been fan-folded, for example, without being rolled up, and applied to the adherend WK or the like, or recovery means may be employed for recovering the first and second release sheets RL1, RL2 by fan-folding, shredding with a shredder, or simply piling them up, without being rolled up, or unnecessary sheet recovery means may be provided for peeling and recovering the first and second unnecessary sheets US1, US2 from the first and second release sheets RL1, RL2. Recovery means may not be employed, or the first and second adhesive sheets AS1, AS2 that are not temporarily attached to the first and second release sheets RL1, RL2 may be unwound and applied. The cutting means 23, 33 may, for example, employ so-called flat blades as cutting members that move towards and away from the first and second sheet substrates BS1, BS2, or may employ cutting blades 23D, 33D that may or may not be detachable from the die-cut rollers 23C, 33C, or may form cuts in the entire short width direction of the strip-shaped first and second adhesive sheet substrates BS1, BS2, and the areas partitioned by the cuts become the first and second adhesive sheets AS1, AS2.

[0026] The direction adjusting means 40 may be configured to hold the adherend WK or the like using a gripping means such as a mechanical chuck or a chuck cylinder, Coulomb force, adhesive, pressure sensitive adhesive, magnetic force, Bernoulli suction, suction, driving equipment, or the like, or the first bonding direction DR1, the second bonding direction DR2, or the peeling direction DR4 may be adjusted by rotating the support table 42 in either a clockwise or counterclockwise direction, or the first bonding direction DR1, the second bonding direction DR2, or the peeling direction DR4 may be adjusted by rotating the first bonding means 20, the second bonding means 30, or the sheet peeling means 70 with or without rotating the adherend WK, or the first bonding direction DR1 may be adjusted so that it is inclined at an angle of, for example, 3 degrees, 90 degrees, or 120 degrees with respect to the notch center line NL so that the first bonding direction DR1 does not coincide with the third bonding direction DR3, or the first bonding direction DR1 may be inclined at an angle of, for example, 13 degrees, 70 degrees, or the like with respect to the notch center line NL. The second attachment direction DR2 may be adjusted so that it is inclined at an angle of, for example, 6 degrees or 125 degrees, so that the second attachment direction DR1 does not coincide with either the first attachment direction D1 or the third attachment direction DR3; the peeling direction DR4 may be adjusted so that it is inclined at an angle of, for example, 25 degrees, 40 degrees, or 145 degrees with respect to the notch center line NL, so that the peeling direction DR4 does not coincide with either the first attachment direction DR1, the second attachment direction DR2, or the third attachment direction DR3; the first, second, and third attachment directions DR1, DR2, DR3 and the peeling direction DR4 may be adjusted so that they do not coincide with each other by any angle difference; and the first, second, and third attachment directions DR1, DR2 and the peeling direction DR4 may be adjusted based on other parts of the adherend WK, such as figures, letters, grooves, unevenness, and orientation flats, provided on the adherend WK, rather than based on the notch center line NL.

[0027] The attachment direction recognition means 50 may recognize the third attachment direction DR3, for example, by detecting figures, letters, grooves, unevenness, orientation flats, etc. provided on the substrate WK, and may or may not be provided in the sheet attachment device EA of the present invention.

[0028] The inversion means 60 may hold at least one of the ring frame RF, first adhesive sheet AS1, second adhesive sheet AS2, third adhesive sheet AS3 and adherend WK in the integrated object UP and invert the adherend WK upside down, or may move the support table 42 without raising the integrated object UP and invert the integrated object UP upside down, or may not be provided in the sheet application device EA of the present invention if there is no need to invert the integrated object UP upside down, such as when the third adhesive sheet AS3 can be peeled off from the adherend WK without inverting the integrated object UP upside down, when the third adhesive sheet AS3 is not peeled off from the adherend WK, or when the third adhesive sheet AS3 is not attached to the adherend WK.

[0029] The sheet peeling means 70 may apply the peeling tape PT to the third adhesive sheet AS3 without stopping the movement of the support table 42, or may apply the peeling tape PT to the third adhesive sheet AS3 without raising or lowering the peeling roller 74, or may move itself to peel the third adhesive sheet AS3 from the adherend WK without moving the support table 42 or while moving the support table 42, or may employ a strip-shaped or sheet-shaped peeling sheet PT as the holding means, or may be a holding means supported by the output shaft of a linear motor as a driving device and capable of being sucked and held by pressure reducing means such as a pressure reducing pump or vacuum ejector. Any configuration may be used, such as a configuration in which the third adhesive sheet AS3 is held by a member and the third adhesive sheet AS3 held by the holding member is separated from the adherend WK and peeled off, or it may be supported by adherend conveying means 10, or a third adhesive sheet AS3 whose adhesive strength is reduced by energy rays such as ultraviolet rays, infrared rays, visible light, X-rays or gamma rays may be used, and the third adhesive sheet AS3 may be irradiated with energy rays by energy ray irradiation means that irradiates energy rays onto the third adhesive sheet AS3 before being peeled off from the adherend WK, or it may or may not be provided in the sheet application apparatus EA of the present invention.

[0030] The adherend WK may not have the third adhesive sheet AS3 attached to the other side WK2, or if the third adhesive sheet AS3 is attached to the other side WK2, the third attachment direction DR3 may not be parallel to the notch center line NL, and may be inclined at an angle of, for example, 6 degrees, 85 degrees, or 163 degrees relative to the notch center line NL.The third attachment direction DR3 may also be determined based on other parts of the adherend WK, such as figures, letters, grooves, irregularities, and orientation flats, provided on the adherend WK, rather than based on the notch center line NL. The adherend WK does not necessarily have to have the notch VN formed therein. The frame member may be annular, circular, elliptical, triangular, quadrangular or more polygonal, or may be a non-annular (non-closed loop) frame member, or may not be present at all.

[0031] The materials, types, shapes, etc. of the first, second, and third adhesive sheets AS1, AS2, and AS3 and the adherend WK in the present invention are not particularly limited. For example, the first, second, and third adhesive sheets AS1, AS2, and AS3 and the adherend WK may be circular, oval, polygonal such as triangular or rectangular, or other shapes. The first, second, and third adhesive sheets AS1, AS2, and AS3 may be pressure-sensitive, heat-sensitive, or other adhesive forms. When heat-sensitive adhesive first, second, and third adhesive sheets AS1, AS2, and AS3 are used, they may be bonded by an appropriate method, such as providing heating means such as a coil heater or the heated side of a heat pipe to heat the first, second, and third adhesive sheets AS1, AS2, and AS3. Furthermore, such first, second, and third adhesive sheets AS1, AS2, and AS3 may be of any type, such as a single layer consisting of only an adhesive layer, a two-layer structure consisting of a substrate and an adhesive layer laminated together, a three-layer structure or more than three layers consisting of a substrate and an adhesive layer with one or more intermediate layers laminated between them, a three-layer structure or more than three layers consisting of one or more cover layers laminated on the top surface of the substrate, a structure in which the substrate, intermediate layer, or cover layer are releasably provided, a double-sided adhesive sheet consisting of only a single layer consisting of an adhesive layer, a double-sided adhesive sheet in which adhesive layers are laminated on both outermost surfaces of one or more intermediate layers, etc. Furthermore, the adherend WK may be, for example, a single object such as food, a resin container, a semiconductor wafer such as a silicon semiconductor wafer or a compound semiconductor wafer, a circuit board, an information recording substrate such as an optical disk, a glass plate, a steel plate, ceramics, a wooden board, or a resin, or a composite formed of two or more of these, or any form of member or article. The first, second and third adhesive sheets AS1, AS2 and AS3 may be read in terms of their function or purpose, and may also refer to any sheet, film or tape, such as an information label, decorative label, protective sheet, dicing tape, die attach film, die bonding tape or recording layer forming resin sheet. At least one of the first, second, and third adhesive sheets AS1, AS2, and AS3 may be composed of, for example, a first sheet material that is a double-sided adhesive sheet and a second sheet material that is composed of one or more layers without an adhesive layer. In this case, the first, second, and third attachment means 20, 50, and 70 that attach such an adhesive sheet to an attachment target such as an adherend WK can be configured to attach the first sheet material to the attachment target, and then laminate and attach the second sheet material on top of the first sheet material. The adhesive sheet may not have an adhesive layer and may be attached to the object by, for example, static electricity, Coulomb force, van der Waals force, magnetic force, or the like.

[0032] The driving device in the above-described embodiments may be an electric device such as a rotary motor, a linear motor, a single-axis robot, or an articulated robot with two or more joints, or an actuator such as an air cylinder, a hydraulic cylinder, a rodless cylinder, or a rotary cylinder, or may be a direct or indirect combination of these. In the above-described embodiments, when a rotating member such as a roller is used, a driving device for rotating the rotating member may be provided, the surface of the rotating member or the rotating member itself may be made of a deformable member such as rubber or resin, or the surface of the rotating member or the rotating member itself may be made of a non-deformable member, or other members such as a rotating or non-rotating shaft or blade may be used instead of the roller, and when a pressing means or pressing member such as a pressure roller or a pressure head that presses the object to be pressed is used, rollers, round rods, blade materials, brush-like members, or members that spray air or gas may be used instead of or in combination with those exemplified above, and the pressing means may be made of a deformable member such as rubber, resin, sponge, or may be made of a non-deformable member such as metal or resin, and when a peeling means or peeling member such as a peeling plate or peeling roller that peels the object to be peeled is used, In combination, members such as plate-shaped members, round bars, rollers, etc. may be used, and the peeling element may be made of a deformable material such as rubber or resin, or may be made of a non-deformable material. When a supporting (holding) means or a supporting (holding) member that supports (holds) the supported member (held member) is used, a configuration in which the supported member is supported (held) may be used, such as a gripping means such as a mechanical chuck or chuck cylinder, Coulomb force, adhesive (adhesive sheet, adhesive tape), pressure-sensitive adhesive (adhesive sheet, adhesive tape), magnetic force, Bernoulli adsorption, suction adsorption, driving equipment, etc. When a cutting means or cutting member that cuts the member to be cut or forms an incision or cutting line in the member to be cut is used, cutting elements such as a cutter blade, laser cutter, ion beam, fire, heat, water pressure, an electric heating wire, or spraying of gas or liquid may be used instead of or in combination with the above examples, or a cutting element may be moved and cut using a combination of appropriate driving equipment. [Explanation of symbols]

[0033] EA...Sheet attachment device 20...First attachment means 30...Second attachment means 40...Direction adjustment means AS1...First adhesive sheet AS2: Second adhesive sheet AS3...Third adhesive sheet DR1: First attachment direction DR2: Second attachment direction DR3...Third attachment direction DR4: Peeling direction WK...Adherend WK1...One side WK2...The other side

Claims

1. a first attachment means for attaching the first adhesive sheet to one surface of the adherend such that the attachment direction to the adherend is a first attachment direction; a second adhering means for adhering a second adhesive sheet onto the first adhesive sheet adhered to the adherend such that the adhering direction with respect to the adherend is a second adhering direction, a direction adjusting means for adjusting the attachment direction so that the second attachment direction does not coincide with the first attachment direction; a third adhesive sheet is attached to the other surface of the adherend such that the attachment direction with respect to the adherend is a third attachment direction; The sheet sticking device according to claim 1, wherein the direction adjusting means adjusts the sticking direction so that the first sticking direction and the second sticking direction do not coincide with the third sticking direction.

2. a sheet peeling means for peeling the third adhesive sheet from the adherend so that the peeling direction relative to the adherend is a predetermined peeling direction; 2. The sheet sticking device according to claim 1, wherein the direction adjusting means adjusts the peeling direction so that the peeling direction does not coincide with any of the first sticking direction, the second sticking direction, and the third sticking direction.

3. a first attachment step of attaching a first adhesive sheet to one surface of an adherend such that the attachment direction with respect to the adherend is a first attachment direction; a second attaching step of attaching a second adhesive sheet onto the first adhesive sheet attached to the adherend such that the attachment direction with respect to the adherend is a second attachment direction, a direction adjusting step of adjusting the attachment direction so that the second attachment direction does not coincide with the first attachment direction; a third adhesive sheet is attached to the other surface of the adherend such that the attachment direction with respect to the adherend is a third attachment direction; The sheet sticking method, wherein the direction adjusting step adjusts the sticking direction so that the first sticking direction and the second sticking direction do not coincide with the third sticking direction.

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