JP2024077879A - Sheet manufacturing device and sheet manufacturing method - Google Patents

Abstract

To provide a sheet manufacturing device and a sheet manufacturing method, capable of preventing a formation failure of an adhesive sheet.SOLUTION: A sheet manufacturing device EA comprises: delivery means 10 of delivering a band-like adhesive sheet base material AB; adhesive sheet formation means 20 of forming a cutting CU in the adhesive sheet base material AB that is delivered by the delivery means 10, and having a cutting blade 23 for forming an adhesive sheet AS to a region separated by the cutting CU; and pressing means 30 of having a suction port 32C for sucking the adhesive sheet base material AB, and pressing the adhesive sheet base material AB to the cutting blade 23. The pressing means 30 provides the suction port 32C at a position where the adhesive sheet base material AB is not pressed to the cutting blade 23.SELECTED DRAWING: Figure 1

Description

The present invention relates to a sheet manufacturing apparatus and a sheet manufacturing method.

A sheet manufacturing device is known that forms an adhesive sheet on an adhesive sheet base material by forming a cut in the adhesive sheet base material, and manufactures the adhesive sheet (see, for example, Patent Document 1).

JP 2016-55363 A

In the rotary cutter 1 (sheet manufacturing device) described in Patent Document 1, in the anvil roll 20 (pressing means) that presses the raw roll 50 (adhesive sheet substrate) against the blade 11 (cutting blade), if there is a suction hole 21 (suction port) at the position where the adhesive sheet substrate is pressed against the cutting blade, the adhesive sheet substrate will escape into the suction port, causing the cutting blade to insufficiently cut into the adhesive sheet substrate, resulting in the product 51 (adhesive sheet) being partially connected to the scraps 53 or other adhesive sheets, resulting in a defective formation of the adhesive sheet.

The object of the present invention is to provide a sheet manufacturing apparatus and a sheet manufacturing method that can prevent defective formation of adhesive sheets.

The present invention employs the configuration described in the claims.

According to the present invention, the suction port is provided at a position where the adhesive sheet substrate is not pressed against the cutting blade, so the adhesive sheet substrate does not escape into the suction port, which prevents the cutting blade from cutting into the adhesive sheet substrate to an insufficient extent, and prevents poor formation of the adhesive sheet.

FIG. 1 is an explanatory diagram of a sheet bonding apparatus including a sheet manufacturing apparatus according to an embodiment of the present invention.

Hereinafter, one embodiment of the present invention will be described with reference to FIG.
In this embodiment, the X-axis, Y-axis, and Z-axis are mutually orthogonal, the X-axis and Y-axis are axes within a specified plane, and the Z-axis is an axis orthogonal to the specified plane. Furthermore, in this embodiment, the view from the front direction of Fig. 1 parallel to the Y-axis is used as a reference, and when indicating directions, "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.

The sheet manufacturing apparatus EA is equipped with a payout means 10 which performs a payout process of paying out a strip-shaped adhesive sheet base material AB, an adhesive sheet forming means 20 which performs an adhesive sheet forming process having a cutting blade 23 which forms an incision CU in the adhesive sheet base material AB paid out by the payout means 10 and forms an adhesive sheet AS in the area partitioned off by the incision CU, and a pressing means 30 which has a suction port 32C which sucks the adhesive sheet base material AB and performs a pressing process of pressing the adhesive sheet base material AB against the cutting blade 23.
In addition, the sheet manufacturing apparatus EA of this embodiment forms a sheet supplying apparatus EA1 with a supplying means 40 that performs a supplying process of extracting and supplying the adhesive sheet AS from the adhesive sheet base material AB, and further forms a sheet sticking apparatus EA2 with the supplying means 40 and a pressing roller 50 as a pressing means that presses the adhesive sheet AS onto the adherend WK to stick it thereon, and is arranged in the vicinity of a supporting means 60 that supports the adherend WK.

The unwinding means 10 includes a support roller 11 that supports the original roll RS with the adhesive sheet base material AB temporarily attached to the release sheet RL, a guide roller 12 that guides the original roll RS, a drive roller 13 that is supported by an output shaft (not shown) of a rotary motor 13A as a drive device and that pinches the release sheet RL between itself and the pinch roller 13B, and a recovery roller 14 that is supported by an output shaft (not shown) of the drive device and that constantly applies a predetermined tension to the release sheet RL that is between itself and the pinch roller 13B while the sheet attachment device EA2 is in automatic operation, and serves as a recovery means for recovering the release sheet RL.

The adhesive sheet forming means 20 includes a die-cut roller 22 supported on an output shaft 21A of a rotary motor 21 as a driving device, and a cutting blade 23 supported on the outer peripheral surface of the die-cut roller 22 and forming an incision CU in the adhesive sheet base material AB.
In this embodiment, the cutting blade 23 is shaped like a closed loop and forms a cut CU that reaches from the adhesive sheet base material AB side to the release sheet RL, thereby forming an adhesive sheet AS on the inside of the cut CU and an unnecessary sheet US on the outside of the cut CU.

The pressing means 30 is provided with a suction port 32C at a position where the adhesive sheet base material AB is not pressed against the cutting blade 23. That is, the pressing means 30 includes a rotary motor 31 as a driving device, an anvil roller 32 supported by an output shaft 31A of the rotary motor 31 and having a suction path 32A formed therein, and a pressure reducing means 33 such as a pressure reducing pump or a vacuum ejector that communicates with the suction path 32A via a rotary joint 33A and a pipe 33B.
The anvil roller 32 in this embodiment comprises recesses 32B formed at both axial ends of the anvil roller 32 and communicating with the suction path 32A, and a porous member 32D arranged within the recesses 32B so that its surface coincides with the outer peripheral surface of the anvil roller 32 and in which a plurality of suction ports 32C are formed. As shown by the dotted line in Figure 1 marked AA, the suction ports 32C are provided axially outboard of the area on the outer peripheral surface of the anvil roller 32 that faces the cutting blade 23, at a position that sucks in both widthwise ends of the adhesive sheet base material AB perpendicular to the payout direction.

The supply means 40 includes a peeling plate 41 that folds the release sheet RL at the peeling edge 41A, peels off the adhesive sheet AS from the release sheet RL, and supplies the adhesive sheet AS.

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 a support surface 62A that can be adsorbed and held by a pressure reduction means (holding means) such as a vacuum pump or vacuum ejector (not shown).

The operation of the sheet bonding apparatus EA2 equipped with the above-described sheet manufacturing apparatus EA will be described.
First, a user of the sheet application device EA2 (hereinafter, simply referred to as "user") sets the original roll RS on the sheet application device EA2, in which each member is arranged in the initial position shown by the solid line in Fig. 1, and then inputs a signal to start automatic operation via an operation means, not shown, such as an operation panel or a personal computer, and the pressing means 30 drives the pressure reducing means 33 and starts suction of the original roll RS with the porous member 32D. Next, the pay-out means 10, the adhesive sheet forming means 20 and the pressing means 30 drive the rotary motors 13A, 21, 31 to pay out the original roll RS, and the adhesive sheet base material AB is pressed against the cutting blade 23 by the anvil roller 32, and a cut CU corresponding to the shape of the cutting blade 23 is formed in the adhesive sheet base material AB, and an adhesive sheet AS and an unnecessary sheet US are formed. Thereafter, as shown in FIG. 1, when a predetermined length of the leading end of the leading adhesive sheet AS in the payout direction is peeled off by the peeling edge 41A of the peeling plate 41, the payout means 10, the adhesive sheet forming means 20 and the pressing means 30 stop driving the rotary motors 13A, 21 and 31.

Next, when a user or a conveying means (not shown), such as an articulated robot or a belt conveyor, places the adherend WK at a predetermined position on the support surface 62A, the support means 60 drives a decompression means (not shown) to start suction and holding the adherend WK on the support surface 62A. Then, the support means 60 drives the linear motor 61 to move the table 62 to the left, and when the table 62 reaches a predetermined position, the pay-out means 10, the adhesive sheet forming means 20, and the pressing means 30 drive the rotary motors 13A, 21, and 31 to pay out the original roll RS in accordance with the moving speed of the table 62. As a result, the adhesive sheet AS is peeled off from the release sheet RL and removed from the adhesive sheet base material AB, and the adhesive sheet AS removed from the adhesive sheet base material AB is pressed by the pressure roller 50 onto the adherend WK and attached, as shown by the two-dot chain line in FIG. 1. Next, when the entire adhesive sheet AS is attached to the adherend WK and the leading end of the next adhesive sheet AS following the leading adhesive sheet AS is peeled off by a predetermined length at the peeling edge 41A of the peeling plate 41, the payout means 10, adhesive sheet forming means 20 and pressing means 30 stop driving the rotary motors 13A, 21 and 31. After that, 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, then stops driving the pressure reducing means (not shown), and releases the suction and holding of the adherend WK on the support surface 62A. Next, when the user or the conveying means (not shown) conveys the adherend WK to which the adhesive sheet AS is attached 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 above are repeated thereafter.

According to the above embodiment, the suction port 32C is provided at a position where the adhesive sheet base material AB is not pressed against the cutting blade 23, so that the adhesive sheet base material AB does not escape into the suction port 32C, which prevents the cutting blade 23 from cutting into the adhesive sheet base material AB to an insufficient extent, and prevents poor formation of the adhesive sheet AS.

As described above, the best configurations and methods for implementing the present invention have been disclosed in the above description, but the present invention is not limited thereto. In other words, the present invention has been mainly illustrated and described with reference to specific embodiments, but 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 descriptions limiting the shapes, materials, etc. disclosed above are provided as examples to facilitate understanding of the present invention, and do not limit the present invention. Therefore, descriptions of the names of components that remove some or all of the limitations on the shapes, materials, etc. are included in the present invention.

For example, the payout means 10 may pay out the adhesive sheet base material AB that is not temporarily attached to the release sheet RL, or may support or guide the original roll RS, adhesive sheet base material AB, release sheet RL, and unnecessary sheet US with a plate-like member or shaft member instead of rollers such as the support roller 11 and guide roller 12, or may support the original roll RS and adhesive sheet base material AB by folding them, for example, in a fanfold, without rolling them up, or may employ a recovery means for recovering the release sheet RL and unnecessary sheet US by folding them in a fanfold without rolling them up, shredding them with a shredder, or piling them up randomly, or may not employ a recovery means.

The adhesive sheet forming means 20 may be provided with a cutting blade that forms a cut from one end to the other end in the width direction of the adhesive sheet base material AB, and may form an adhesive sheet AS in the area partitioned by the cut, or may be provided with multiple cutting blades 23 on the outer peripheral surface of the die-cut roller 22, or may be provided with a cutting blade 23 that is detachable from the die-cut roller 22, or may be provided with a driving device such as a linear motor that supports a rotary motor 21 with an output shaft to move the cutting blade 23 away from the adhesive sheet base material AB to form the adhesive sheet AS, or may be supported by, for example, a flat plate other than the die-cut roller 22, or may be provided with a cutting blade 23 that can form an adhesive sheet AS with an outer edge shape such as a circle, an ellipse, or a polygon such as a triangle or a rectangle.

The pressing means 30 may have recesses 32B and porous members 32D intermittently provided on the outer peripheral surface of the anvil roller 32, or may have suction ports 32C formed directly on the outer peripheral surface of the anvil roller 32 instead of or in combination with the recesses 32B and porous members 32D, or may press the adhesive sheet base material AB directly against the cutting blade 23 without using a release sheet RL, or may have suction ports 32C provided at a position where only one end of the adhesive sheet base material AB in the width direction perpendicular to the pay-out direction is sucked in, or may have suction ports 32C provided at a position where only the other end is sucked in.
The pressing means 30 may have a suction port 32C formed within the area facing the cutting blade 23 on the outer peripheral surface of the anvil roller 32, for example, at a position inside the closed loop cut CU formed by the cutting blade 23, or at a position outside the closed loop cut CU but not at both ends in the width direction of the adhesive sheet base material AB, and in this case, the rotation of the die cut roller 22 and the anvil roller 32 can be adjusted so that the cutting blade 23 is not positioned above the suction port 32C.
The shape of the suction port 32C is not particularly limited, and its cross-sectional shape and opening shape may be any shape, such as a circle, an ellipse, a polygon such as a triangle or a rectangle, a groove shape, or a hole shape formed by sintering.

When an adhesive sheet base material AB that is not temporarily attached to a release sheet RL is used as the supply means 40 (even when an adhesive sheet base material AB that is temporarily attached to a release sheet RL is used), for example, instead of or in combination with the release plate 41, a linear motor as a driving device and an adhesive sheet holding member that is supported by the output shaft of the linear motor and can be adsorbed and held by a pressure reduction means (not shown) such as a pressure reduction pump or a vacuum ejector may be used as the supply means 40, and the adhesive sheet AS held by the adhesive sheet holding member may be removed from the adhesive sheet base material AB and supplied, or may be provided in the sheet manufacturing apparatus EA, sheet supply apparatus EA1 or sheet application apparatus EA2 of the present invention or may not be provided, and if not provided, the adhesive sheet AS may be supplied by another apparatus.

The pressing means may be configured to include a linear motor as a driving device and a holding member that is supported by the output shaft of the linear motor and can be adsorbed and held by a decompression means (not shown), such as a decompression pump or a vacuum ejector, and the adhesive sheet AS held by the holding member is pressed against the adherend WK to be affixed. Alternatively, the sheet manufacturing device EA and the pressing roller 50 may be arranged upside down or horizontally, and the adhesive sheet AS may be pressed against the underside or side of the adherend WK to be affixed. Alternatively, a driving device may be used as a pressing member contact means for moving the pressing roller 50 away from and toward the adherend WK to prevent stress or damage to the adherend WK. The sheet manufacturing device EA, the sheet supplying device EA1, or the sheet attaching device EA2 of the present invention may or may not be provided with the pressing means. If the pressing means is not provided with the pressing means, the adhesive sheet AS may be pressed against the adherend WK and affixed by another device.

The support means 60 may be a table 62 that cannot be held by suction on the support surface 62A, and may or may not be provided in the sheet manufacturing apparatus EA, sheet supplying apparatus EA1 or sheet application apparatus EA2 of the present invention. If not provided, the adherend WK may be moved by another device.

The sheet manufacturing apparatus EA may be used alone, or may be used alone as the sheet supplying apparatus EA1 formed with the supplying means 40. For example, the sheet supplying apparatus EA1 may supply the adhesive sheet AS extracted from the adhesive sheet substrate AB to other devices other than the pressing means, such as a known printing device or inspection device, or may supply it to a user.

The materials, types, shapes, etc. of the adhesive sheet substrate AB, adhesive sheet AS, and adherend WK are not particularly limited. For example, the adhesive sheet substrate AB, adhesive sheet AS, and adherend WK may be circular, elliptical, polygonal such as triangular or rectangular, or other shapes, and the adhesive sheet substrate AB may be pressure-sensitive, heat-sensitive, or other adhesive form. When a heat-sensitive adhesive sheet substrate AB is used, the adhesive sheet AS may be adhered by an appropriate method such as providing a heating means such as a suitable coil heater or the heating side of a heat pipe to heat the adhesive sheet AS. In addition, the adhesive sheet substrate AB may be any of the following: a single layer of adhesive layer only, a two-layer substrate with a substrate and an adhesive layer laminated thereon, a three-layer substrate with one or more intermediate layers laminated between the substrate and the adhesive layer, a three-layer substrate with one or more cover layers laminated on the upper surface of the substrate, a substrate, an intermediate layer or a cover layer provided in a peelable manner, a double-sided adhesive sheet with a single layer of adhesive layer only, a double-sided adhesive sheet with adhesive layers 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, a ceramic, a wooden board or a resin, or a composite formed of two or more of these, and may be any shape of member or article. In addition, the adhesive sheet AS can be read in terms of its function or purpose, and can refer to any sheet, film, tape, etc., such as an information label, decorative label, protective sheet, dicing tape, die attach film, die bonding tape, or recording layer-forming resin sheet.

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 just one embodiment shown in the above embodiment. For example, the payout means may be anything that pays out a strip-shaped adhesive sheet substrate, 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 goes for the other means and steps).

The driving equipment in the above-described embodiments may be electric equipment such as a rotary motor, a linear motor, a single-axis robot, or a multi-joint robot having joints on two or more axes, or an actuator such as an air cylinder, a hydraulic cylinder, a rodless cylinder, or a rotary cylinder, or a direct or indirect combination of these may also be used.
In the above-described embodiment, 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 material such as rubber or resin, or the surface of the rotating member or the rotating member itself may be made of a non-deformable material, 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 pressing roller or a pressing head that presses an object to be pressed is used, a roller, a round bar, a blade material, a brush-like member, or a member that blows air or gas may be used instead of or in combination with the above-described examples, or the pressing member may be made of a deformable material such as rubber, resin, sponge, etc. However, it may be made of a non-deformable material such as metal or resin, and when a peeling means or peeling member such as a peeling plate or peeling roller that peels off the object to be peeled is used, a plate-shaped member, a round bar, a roller, or other member may be used instead of or in combination with the above examples, and the peeling means may be made of a deformable material such as rubber or resin, or may be made of a non-deformable material, and 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 by a gripping means such as a mechanical chuck or a chuck cylinder, Coulomb force, an adhesive (adhesive sheet, adhesive tape), a pressure sensitive adhesive (adhesive sheet, adhesive tape), a magnetic force, Bernoulli adsorption, suction adsorption, a driving device, or the like.

EA: Sheet manufacturing apparatus 10: Feed-out means 20: Adhesive sheet forming means 23: Cutting blade 30: Pressing means 32C: Suction port AB: Adhesive sheet substrate AS: Adhesive sheet CU: Cut

Claims (3)

a feeding means for feeding a strip-shaped adhesive sheet base material;
an adhesive sheet forming means including a cutting blade for forming a cut in the adhesive sheet base material fed out by the feeding means and forming an adhesive sheet in an area partitioned by the cut;
a pressing means having a suction port for sucking the adhesive sheet substrate and pressing the adhesive sheet substrate against the cutting blade;
The sheet manufacturing apparatus, wherein the pressing means is provided with the suction port at a position where the adhesive sheet base material is not pressed against the cutting blade. The sheet manufacturing apparatus according to claim 1, characterized in that the pressing means has the suction port at a position for sucking both ends of the adhesive sheet base material in the width direction perpendicular to the payout direction. a feeding step of feeding out a strip-shaped adhesive sheet base material;
an adhesive sheet forming step of forming a cut in the adhesive sheet base material fed out in the feeding step with a cutting blade and forming an adhesive sheet in the area partitioned by the cut;
a pressing step of pressing the adhesive sheet substrate against the cutting blade while sucking the adhesive sheet substrate through a suction port;
The sheet manufacturing method, wherein in the pressing step, the adhesive sheet substrate is sucked by the suction port at a position where the adhesive sheet substrate is not pressed against the cutting blade.

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