Adhesive sheet forming apparatus, adhesive sheet forming method, sheet sticking apparatus, and sheet sticking method

Abstract

To provide an adhesive sheet forming device and an adhesive sheet forming method capable of replacing a cutting blade by a new method, and a sheet sticking device and a sheet sticking method.SOLUTION: The adhesive sheet forming device EA includes a feeding means 10 for feeding a raw material roll R S in which a strip-like release sheet RL is temporarily attached to a strip-like adhesive sheet base material A B, and a cutting means 20 for forming a slit CU in the adhesive sheet base material A B of the raw material roll R S fed by the feeding means 10 and forming an adhesive sheet A S in a region partitioned by the slit CU, and the cutting means 20 includes a first cutting roller 21 having a first cutting blade 21A, a second cutting roller 22 having a second cutting blade 22A, receiving rollers 23 and 24 for guiding the raw material roll R S, and a moving means 25 for relatively moving the first cutting roller 21 or the second cutting roller 22 and the receiving rollers 23 and 24 to form the slit CU so that the interval between the first cutting blade 21A or the second cutting blade 22A and the receiving rollers 23 and 24 is equal to or less than the thickness of the release sheet RL.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an adhesive sheet forming apparatus, an adhesive sheet forming method, a sheet sticking apparatus, and a sheet sticking method. [Background technology]

[0002] BACKGROUND ART An adhesive sheet forming apparatus for forming an adhesive sheet on an adhesive sheet substrate is known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-204614 Summary of the Invention [Problem to be solved by the invention]

[0004] In the incision forming unit 10 (adhesive sheet forming device) described in Patent Document 1, the cutting blade 46 (cutting blade) can be removed and replaced with another cutting blade, but in recent years there has been a demand for new methods of replacing the cutting blade.

[0005] An object of the present invention is to provide an adhesive sheet forming apparatus and method, as well as a sheet sticking apparatus and method, that allow cutting blades to be replaced by a new method. [Means for solving the problem]

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

[0007] According to the present invention, the first cutting roller or the second cutting roller and the receiving roller are moved relative to each other, and the incision is formed so that the distance between the first cutting blade or the second cutting blade and the receiving roller is equal to or less than the thickness of the release sheet, thereby enabling the cutting blade to be replaced by a new method. [Brief explanation of the drawings]

[0008] [Figure 1] 1A is an explanatory diagram of a sheet sticking device according to an embodiment of the present invention, and FIGS. 1B and 1C are explanatory diagrams of sheet sticking devices according to modified examples of the present invention. 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, when viewed from the front direction of Fig. 1(A) parallel to the Y-axis, "up" is the direction of the arrow of the Z-axis, "down" is the opposite direction, "left" is the direction of the arrow of the X-axis, "right" is the opposite direction, "front" is the direction toward the front of Fig. 1(A) parallel to the Y-axis, and "rear" is the opposite direction.

[0010] The adhesive sheet forming apparatus EA includes a feeding means 10 that performs a feeding step of feeding out a raw sheet RS having a strip-shaped adhesive sheet base material AB to which a strip-shaped release sheet RL is temporarily attached, a cutting means 20 that performs a cutting step of forming an incision CU in the adhesive sheet base material AB of the raw sheet RS fed out by the feeding means 10 and forming an adhesive sheet AS in the area partitioned by the incision CU, and an operating means 30 that performs an operating step using an operating panel, personal computer, etc. to select either the first cutting blade 21A or the second cutting blade 22A. The sheet application device EA1 comprises an adhesive sheet forming device EA, a peeling plate 40 as a peeling means for performing a peeling process in which the peeling sheet RL of the raw sheet RS fed by the feeding means 10 is folded back at the peeling edge 40A and the adhesive sheet AS is peeled off from the peeling sheet RL, and a pressing roller 50 as a pressing means for performing a pressing process in which the adhesive sheet AS peeled off by the peeling plate 40 is pressed onto an adherend WK to apply it, and is arranged near a support means 60 for performing a supporting process in which the adherend WK and a ring frame RF as a frame member are supported.

[0011] The unwinding means 10 includes a support roller 11 that supports the raw roll RS, a guide roller 12 that guides the raw roll RS, a peeling roller 13 as a peeling member that folds back the unnecessary sheet US formed outside the area partitioned by the cutout CU and peels the unnecessary sheet US from the release sheet RL, a recovery roller 14 that is supported by the output shaft of a drive device not shown and that constantly applies a predetermined tension to the unnecessary sheet US present between it and the peeling roller 13 while the sheet application device EA1 is operating automatically, and serves as a recovery means for recovering the unnecessary sheet US, a drive roller 15 that is supported by the output shaft of a rotary motor 15A as a drive device not shown and that pinches the release sheet RL between it and a pinch roller 15B, and a recovery roller 16 that is supported by the output shaft of a drive device not shown and that constantly applies a predetermined tension to the release sheet RL present between it and the pinch roller 15B while the sheet application device EA1 is operating automatically, and serves as a recovery means for recovering the release sheet RL.

[0012] The cutting means 20 includes a first cutting roller 21 having a first cutting blade 21A, a second cutting roller 22 having a second cutting blade 22A, receiving rollers 23, 24 that guide the raw web RS, and a moving means 25 that moves the first cutting roller 21 or the second cutting roller 22 and the receiving rollers 23, 24 relative to each other based on the selection result of the operating means 30, and forms an incision CU so that the distance between the first cutting blade 21A or the second cutting blade 22A and the receiving rollers 23, 24 is equal to or less than the thickness of the release sheet RL. In this embodiment, the first cutting blade 21A and the second cutting blade 22A are formed in different shapes, and the first cutting blade 21A sandwiches the raw web RS between itself and the receiving roller 23 and is rotatable in conjunction with the receiving roller 23 by a driving device (not shown), and the second cutting blade 22A sandwiches the raw web RS between itself and the receiving roller 24 and is rotatable in conjunction with the receiving roller 24 by a driving device (not shown). The moving means 25 includes a linear motor 25A as a driving device, a bracket 25C supported by the output shaft 25B of the linear motor 25A and supporting one end of the receiving roller 23, a rotary motor 25E as a driving device supported by the bracket 25C and supporting the other end of the receiving roller 23 with the output shaft 25D, a linear motor 25F as a driving device, a bracket 25H supported by the output shaft 25G of the linear motor 25F and supporting one end of the receiving roller 24, a rotary motor 25K as a driving device supported by the bracket 25H and supporting the other end of the receiving roller 24 with the output shaft 25J, and a control means 25L such as a personal computer or sequencer electrically connected to the linear motors 25A and 25F.

[0013] The operation means 30 is connected to the control means 25L and is configured to output the selection result to the control means 25L.

[0014] The support means 60 includes a linear motor 61 as a driving device, and a table 62 supported by a slider 61A of the linear motor 61 and having an adherend support surface 62A and a frame support surface 62B, each of which can be adsorbed and held by a pressure reduction means (holding means) such as a pressure reduction pump or a vacuum ejector (not shown).

[0015] The operation of the sheet sticking apparatus EA1 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 applicator EA1 (hereinafter simply referred to as "user") sets the raw web RS as shown in the figure, and then selects the first cutting blade 21A via the operation means 30. The cutting means 20 drives the linear motor 25A via the control means 25L, and moves the receiving roller 23 to the left, as shown by the two-dot chain line in the figure, so that the distance between the first cutting blade 21A and the receiving roller 23 is equal to or less than the thickness of the release sheet RL. Next, the user inputs a signal to start automatic operation via the operation means 30. The feeding means 10 and the cutting means 20 then drive the rotary motors 15A, 25E ​​to feed out the raw web RS, forming a slit CU in the adhesive sheet base material AB that corresponds to the shape of the first cutting blade 21A, and forming an adhesive sheet AS and a waste sheet US. After the incisions CU are formed, the unwanted sheets US of the unwound raw web RS are peeled off from the release sheet RL by the peeling roller 13, and the unwanted sheets US are collected by the collection roller 14. Thereafter, as shown in Fig. 1(A), when a predetermined length of the leading edge of the leading adhesive sheet AS in the payout direction is peeled off from the release sheet RL at the folded-back portion of the release sheet RL folded back by the peeling edge 40A of the peeling plate 40, the payout means 10 and the cutting means 20 stop driving the rotation motors 15A and 25E.

[0016] Next, when a user or a conveying means (not shown), such as an articulated robot or a belt conveyor, places the adherend WK and ring frame RF in predetermined positions on the adherend support surface 62A and frame support surface 62B, the support means 60 drives a pressure-reducing means (not shown) to begin suction-holding the adherend WK and ring frame RF on the adherend support surface 62A and frame support surface 62B. The support means 60 then drives the linear motor 61 to move the table 62 to the left, and when the table 62 reaches a predetermined position, the payout means 10 and the cutting means 20 drive the rotary motors 15A and 25E to form incisions CU in the adhesive sheet base material AB in accordance with the movement speed of the table 62, while paying out the raw web RS. As a result, the adhesive sheet AS is peeled from the release sheet RL at the folded portion of the release sheet RL, and is pressed by the pressure roller 50 onto the ring frame RF and adherend WK, as shown by the two-dot chain line in FIG. 1(A).

[0017] Next, the entire leading adhesive sheet AS is attached to the ring frame RF and the adherend WK to form an integrated object UP. When the leading edge of the next adhesive sheet AS following the leading adhesive sheet AS in the payout direction is peeled off a predetermined length from the release sheet RL at the folded-back portion of the release sheet RL, the payout means 10 and the cutting means 20 stop driving the rotary motors 15A and 25E. Thereafter, when the table 62 reaches a predetermined position to the left of the pressure roller 50, the support means 60 stops driving the linear motor 61 and then stops driving the pressure-reducing means (not shown), releasing the adherend WK and ring frame RF from their suction and holding positions on the adherend support surface 62A and frame support surface 62B. Next, when the user or the transport means (not shown) transports the integrated object UP to the next process, the support means 60 drives the linear motor 61 to return the table 62 to its initial position, and the same operations as described above are repeated.

[0018] When replacing the first cutting blade 21A with the second cutting blade 22A, the user selects the second cutting blade 22A via the operating means 30. When a detection means (not shown) detects that the cutting operation with the first cutting blade 21A has been completed, the cutting means 20 drives the linear motor 25A to move the receiving roller 23 to the right and return it to its initial position. Next, the feeding means 10 drives the rotary motor 15A to feed out a predetermined amount of the raw web RS. After that, when the user removes the adhesive sheet AS formed on the raw web RS, the cutting means 20 drives the linear motor 25F to move the receiving roller 24 to the left so that the distance between the second cutting blade 22A and the receiving roller 24 is equal to or less than the thickness of the release sheet RL. The user then inputs a signal to start automatic operation again via the operating means 30, and the same operations as those described above are repeated.

[0019] According to the above-described embodiment, the first cutting roller 21 or the second cutting roller 22 and the receiving rollers 23, 24 are moved relative to each other, and the incision CU is formed so that the distance between the first cutting blade 21A or the second cutting blade 22A and the receiving rollers 23, 24 is equal to or less than the thickness of the release sheet RL, so that the cutting blades 21A, 22A can be replaced by a new method.

[0020] Furthermore, based on the result of the selection made by the operating means 30, the first cutting roller 21 or the second cutting roller 22 and the receiving rollers 23, 24 are moved relative to each other, and the raw sheet RS is sandwiched between the first cutting blade 21A or the second cutting blade 22A and the receiving rollers 23, 24, so that the process of forming the adhesive sheet AS can be resumed quickly, preventing a decrease in processing capacity per unit time.

[0021] As described above, the best configurations, methods, and the like for implementing the present invention have been disclosed in the above description, but the present invention is not limited thereto. That is, although the present invention has been particularly illustrated and described mainly with reference to specific embodiments, those skilled in the art can make various modifications to the above-described embodiments in terms of shape, material, quantity, and other detailed configurations without departing from the scope of the technical idea and purpose of the present invention. Furthermore, the above-disclosed descriptions limiting the shape, material, and the like are provided as examples to facilitate understanding of the present invention and are not intended to limit the present invention. Therefore, descriptions using names of components that are free from some or all of the limitations on shape, material, and the like are included in the present invention. 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 feeding means may be any means that feeds out a raw sheet having a strip-shaped adhesive sheet substrate to which a strip-shaped release sheet is temporarily attached, and is not limited in any way as long as it is within the scope of the common general technical knowledge at the time of filing (the same applies to other means and steps).

[0022] The unwinding means 10 may unwind the raw roll RS from a raw roll RS that has been folded, for example, in a fanfold, without being wound up, or may employ a recovery means that recovers the release sheet RL by folding it, for example, in a fanfold, by shredding it with a shredder, or by piling it up randomly, without being wound up, or it may not employ a recovery means at all.

[0023] The cutting means 20 may have three or more cutting rollers, or may have only one receiving roller, or the number of cutting rollers may be different from the number of receiving rollers, or the cutting roller may be moved while the receiving roller is moved or not. For example, as shown in Fig. 1(B), the cutting means 20 includes a moving means 28 that moves one of the first cutting roller 21, the second cutting roller 22, and the third cutting roller 26 provided around a single receiving roller 27 closer to the receiving roller 27 based on the selection result of the operating means 30, and the third cutting roller 26 has a third cutting blade 26A, and the single receiving roller 27 is supported by an output shaft 27B of a rotation motor 27A as a driving device interlocked with one of the rotation motors 21B, 22B, and 26B according to the selected blade, and the moving means 28 moves the first cutting roller 21 by a bracket 28C supported by the output shaft 28B. The driving device includes a linear motor 28A as a driving device supporting the first cutting roller 21, a linear motor 28D as a driving device supporting the second cutting roller 22 with a bracket 28F supported on an output shaft 28E, a linear motor 28G as a driving device supporting the third cutting roller 26 with a bracket 28J supported on an output shaft 28H, a control means 28K such as a personal computer or sequencer electrically connected to the linear motors 28A, 28D, and 28G, and a guide roller 28M that guides the raw web RS so that it passes between the first cutting roller 21, the second cutting roller 22, and the third cutting roller 26 and the single receiving roller 27. The cutting means 20 may move the cutting rollers 21, 22, 26 in the feeding direction of the raw web RS, or in the front-rear direction, which is the direction of the shorter width of the raw web RS that is perpendicular to the feeding direction. For example, as shown in Fig. 1(C), the cutting means 20 includes a moving means 29 that moves either the first cutting roller 21 or the second cutting roller 22, which are arranged side by side in the front-rear direction, in the front-rear direction based on the selection result of the operating means 30. The moving means 29 includes a linear motor 29A as a driving device and a control means (not shown), such as a personal computer or sequencer, electrically connected to the linear motor 29A and the linear motors 28A and 28D. The linear motor 29A includes a slider 29B that supports the linear motor 28A and a slider 29C that supports the linear motor 28D. The cutting means 20 may have the first cutting blade 21A, the second cutting blade 22A and the third cutting blade 26A of the same shape, or may have different blade heights for the first cutting blade 21A, the second cutting blade 22A and the third cutting blade 26A. If the first cutting blade 21A, the second cutting blade 22A and the third cutting blade 26A have the same shape, there is no need to remove the adhesive sheet AS formed on the original roll RS when replacing the first cutting blade 21A with the second cutting blade 22A or the third cutting blade 26A. The cutting blades 21A, 22A, and 26A are formed on the surface of a plate-like member that can follow the outer peripheral surface of the cutting rollers 21, 22, and 26, and the cutting rollers 21, 22, and 26 may be configured to be provided with a holding means that holds the plate-like member on which the cutting blades 21A, 22A, and 26A are formed from the back side.For example, the cutting blades 21A, 22A, and 26A may be formed on the surface of a thin metal plate as a plate-like member, and the cutting rollers 21, 22, and 26 may be configured to be provided with a magnetic body as a holding means on the outer peripheral surface.

[0024] The operating means 30 may or may not be provided in the adhesive sheet forming apparatus EA or the sheet sticking apparatus EA1 of the present invention. If the operating means 30 is not provided, for example, a configuration may be adopted in which the cutting state of the cutting blades 21A, 22A, 26A is observed with an imaging means such as a camera or a sensor, and the cutting blades 21A, 22A, 26A are automatically replaced when the cutting performance of the cutting blades 21A, 22A, 26A deteriorates or when a predetermined number of incisions CU have been formed.

[0025] The support means 60 may or may not be provided in the adhesive sheet forming apparatus EA or the sheet sticking apparatus EA1 of the present invention.

[0026] The sheet application device EA1 may be configured to be placed upside down or horizontally to apply the adhesive sheet AS to the underside or side of the adherend WK, or the support means 60 may move the payout means 10, cutting means 20, peeling plate 40, and pressure roller 50 to apply the adhesive sheet AS to the ring frame RF and the adherend WK, either without moving the table 62 or while moving it, or instead of the pressure roller 50, a pressing means may be used that is supported by the output shaft of a linear motor as a driving device and that holds the adhesive sheet AS with a holding member that can be adsorbed and held by a pressure reducing means (not shown) such as a pressure reducing pump or vacuum ejector, and that presses the adhesive sheet AS held by the holding member onto the adherend WK to apply it, or a driving device may be used as a pressing member contact means that moves the pressure roller 50 towards and away from the adherend WK to prevent stress or damage to the adherend WK.

[0027] The one-piece UP does not need to have a ring frame RF. The frame member may be a ring frame, but may also be non-annular (not connected at the outer periphery), circular, elliptical, polygonal, or other shape.

[0028] The adhesive sheet AS and adherend WK of the present invention are not particularly limited in terms of material, type, shape, etc. For example, the adhesive sheet AS and adherend WK may be circular, oval, polygonal (e.g., triangular, rectangular), or other shapes. The adhesive sheet AS may be pressure-sensitive, heat-sensitive, or other adhesive. If a heat-sensitive adhesive sheet AS is used, the adhesive sheet AS may be adhered by an appropriate method, such as providing a heating means such as a coil heater or the heated side of a heat pipe. Furthermore, such adhesive sheets AS may be of any type, such as a single-layer adhesive sheet; a two-layer structure consisting of a substrate and an adhesive layer; a three-layer structure consisting of a substrate and an adhesive layer with one or more intermediate layers between them; a three-layer structure consisting of a substrate with one or more cover layers laminated on top; a structure in which the substrate, intermediate layer, or cover layer are releasably provided; a double-sided adhesive sheet consisting of a single layer consisting of an adhesive layer; or a double-sided adhesive sheet with adhesive layers laminated on both outermost surfaces of one or more intermediate layers. 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, a ceramic plate, a wooden board, or a resin, or may be a composite formed from two or more of these, and any type of member or article may be targeted.The adhesive sheet AS may be, for example, any sheet, film, tape, etc., such as an information label, a decorative label, a protective sheet, a dicing tape, a die attach film, a die bonding tape, or a recording layer-forming resin sheet.

[0029] The driving equipment in the above embodiments may be electric equipment such as rotary motors, linear motors, single-axis robots, so-called articulated robots with joints on two or three or more axes, actuators such as air cylinders, hydraulic cylinders, rodless cylinders and rotary cylinders, which may be used alone, or may be a direct or indirect combination of such electric equipment and actuators, or may be electric equipment, actuators, etc. that are capable of torque control, speed control, etc. for the output parts of such electric equipment, actuators, etc., or may not be capable of torque control, speed control, etc.

[0030] In the above embodiment, some object (hereinafter referred to as "object A") and an object (hereinafter referred to as "object B") that moves relative to object A, i.e., object A and object B that move relatively, object B may move relative to object A that does not move, object A may move relative to object B that does not move, or both object A and object B may move, and as long as the result achieved by the movement is the same, either object A or object B may move, and when a rotating member such as a roller is used, a driving device that rotates 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, 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 pressing roller or a pressing head that presses the pressed object is used, the above-mentioned examples may be used. In place of or in combination with the above, rollers, round rods, blade materials, brush-like members, and members that spray air, gas, or other gases may be used; the pressing member may be made of a deformable member such as rubber, resin, sponge, or an indeformable member such as metal or glass; when a peeling means or peeling member such as a peeling plate or peeling roller that peels the object to be peeled is used, members such as a plate-like member, round rod, or roller may be used in place of or in combination with the above examples; the peeling member may be made of a deformable member such as rubber or resin, or an indeformable member; and when a supporting (holding) means or supporting (holding) member that supports (holds) the supported member (held member), 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, or the like may be used to support (hold) the supported member. [Explanation of symbols]

[0031] EA...Adhesive sheet forming device EA1...Sheet application device 10... Feeding means 20...Cutting means 21...First cutting roller 21A…1st cutting blade 22...Second cutting roller 22A…Second cutting blade 23, 24...Receiving rollers 25...Transportation 40...Removal plate (removal means) 40A...peeled edge 50...Pressing roller (pressing means) AB...Adhesive sheet base material AS...Adhesive sheet CU...cut RL...Release sheet RS…Raw fabric WK...Adherent

Claims

1. a feeding means for feeding out a raw sheet in which a strip-shaped release sheet is temporarily attached to a strip-shaped adhesive sheet substrate; a cutting means for forming a slit in the adhesive sheet base material of the raw roll fed by the feeding means, and forming an adhesive sheet in an area partitioned by the slit, The cutting means is a first cutting roller having a first cutting blade; a second cutting roller having a second cutting blade; a receiving roller for guiding the raw web; an adhesive sheet forming device characterized by comprising a moving means for moving the first cutting roller or the second cutting roller relative to the receiving roller, and forming the incision so that the distance between the first cutting blade or the second cutting blade and the receiving roller is equal to or less than the thickness of the release sheet.

2. The adhesive sheet forming apparatus according to claim 1 ; a peeling means for folding back the release sheet of the original roll fed out by the feeding means at a peeling edge to peel off the adhesive sheet from the release sheet; A sheet sticking device comprising a pressing means for pressing the adhesive sheet peeled off by the peeling means onto an adherend to stick it thereto.

3. a feeding step of feeding out a raw sheet in which a strip-shaped release sheet is temporarily attached to a strip-shaped adhesive sheet base material; a cutting step of forming slits in the adhesive sheet base material of the raw web fed in the feeding step, and forming an adhesive sheet in the area partitioned by the slits; In the cutting step, A method for forming an adhesive sheet, characterized in that a first cutting roller having a first cutting blade or a second cutting roller having a second cutting blade is moved relative to a receiving roller that guides the raw sheet, and the incision is formed so that the distance between the first cutting blade or the second cutting blade and the receiving roller is less than the thickness of the release sheet.

4. a feeding step and a cutting step carried out in the adhesive sheet forming method according to claim 3; a peeling step of folding back the release sheet of the original roll fed in the feeding step at a peeling edge and peeling the adhesive sheet from the release sheet; a pressing step of pressing the adhesive sheet peeled off in the peeling step onto an adherend to adhere it thereto.

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