JP7154737B2 - Sheet sticking device and sticking method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a sheet sticking device and a sticking method.

Conventionally, a mounting device (sheet sticking device) forms a notch in a delivered adhesive sheet base material, forms an adhesive sheet inside the cut, peels off the adhesive sheet by a peeling means, and sticks it to an adherend. is known (see, for example, Patent Document 1).

JP-A-2005-116928

However, in the conventional sheet sticking apparatus described in Patent Document 1, the pre-cutting device 13 (cutting means) forms a notch without considering the shape of the tip (peeling edge) of the peel plate 26 (peeling means). Since the dicing tape T (adhesive sheet) is formed by pressing, the peel start edge of the adhesive sheet may be parallel to the peel edge of the peeling means depending on the shape of the adhesive sheet. In such a case, since the adhesive sheet is peeled at once by the peeling edge of the peeling means, the tip region including many peel start edges is peeled off, so that the force of adhering the tip region to the base sheet S (release sheet) is reduced. If the rigidity of the leading end region is superior, the conventional sheet sticking device cannot separate the adhesive sheet from the release sheet, resulting in poor separation.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a sheet sticking apparatus and a sticking method that can stick the adhesive sheet to an adherend without causing peeling failure in the peeling means.

The present invention employs the configurations described in the claims.

According to the present invention, considering the shape of the peeling edge of the peeling means, the cut is formed so that the peeling start edge of the adhesive sheet is not parallel to the peeling edge. The adhesive sheet can be attached to the adherend without causing a peeling failure in the peeling means because many tip regions are not peeled off at once.
Further, if the moving means includes a displacement means, the adhesive sheet can be aligned with the adherend and the adhesive sheet can be applied to the adherend.
Furthermore, if the displacement means changes the orientation of the adherend based on the detection result of the sheet direction detection means, the position of the adhesive sheet and the adherend can be aligned without using labor, and the adhesive sheet can be adjusted. can be attached to the adherend.

1A is a side view of a sheet sticking device according to an embodiment of the present invention; FIG. (B) is a supplementary diagram of FIG. 1(A). The perspective view of FIG. 1(A).

An embodiment of the present invention will be described below with reference to the drawings.
Note that the X-axis, Y-axis, and Z-axis in this embodiment 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. do. Furthermore, in this embodiment, when viewed from the front in FIG. The direction of the arrow on the X axis is left, and the opposite direction is right, and the front direction is parallel to the Y axis in FIG.

In FIG. 1, a sheet sticking apparatus 10 of the present invention includes a feed-out means 20 for feeding an original sheet RS in which a strip-shaped release sheet RL is temporarily adhered to an adhesive surface AS1 of a strip-shaped adhesive sheet base material ASB, and feed-out means 20 feeds out the original fabric RS. Cutting means 30 for forming an adhesive sheet AS inside the cut CU by forming a cut CU having a predetermined shape in the adhesive sheet base material ASB of the original fabric RS formed in the adhesive sheet base material ASB Sheet direction detection means 40 such as imaging means such as a camera or a projector for detecting the orientation of the adhesive sheet AS, various sensors such as an optical sensor or a sound wave sensor, and the original sheet RS fed out by the feeding means 20 are folded back at the peeling edge 50A. a peeling plate 50 as a peeling means for peeling the adhesive sheet AS from the peeling sheet RL; a pressing roller 60 as a pressing means for pressing and attaching the adhesive sheet AS peeled by the peeling plate 50 to the adherend WK; It has a peeling plate 50, a pressure roller 60, and a moving means 70 for relatively moving the adherend WK in a predetermined sticking direction SD (X-axis direction).

The delivery means 20 is driven by a support roller 21 that supports the original sheet RS, a guide roller 22 that guides the original sheet RS, and a rotary motor 23A as a driving device, and feeds the release sheet RL between itself and a pinch roller 24. It is provided with a drive roller 23 for pinching, and a collection roller 25 driven by a driving device (not shown) to apply a predetermined tension to the release sheet RL and collect it.

The cutting means 30 is supported by an output shaft 31A of a rotary motor 31 as a driving device, and includes a cutter roller 32 having a cutting blade 33 as a cutting member on its peripheral surface and a receiver rotating in synchronization with the cutter roller 32. In consideration of the shape of the peeling edge 50A of the peeling plate 50, the notch CU can be formed so that the peeling start edge ASF of the adhesive sheet AS is not parallel to the peeling edge 50A. .

The moving means 70 includes a base plate 72 supported by a slider 71A of a linear motor 71 as a driving device, and an adhesive sheet AS supported by the base plate 72, which is formed on the adhesive sheet base material ASB, and moves the adherend according to the orientation. A rotation motor 73 as displacement means for changing the direction of WK, and a support table 74A supported by its output shaft 73A and having a support surface 74A capable of supporting the adherend WK by decompression means (not shown) such as a decompression pump and a vacuum ejector. 74, and an adherend direction detection means 75 such as imaging means such as a camera or a projector capable of detecting the orientation of the adherend WK placed on the support surface 74A, or various sensors such as an optical sensor or a sound wave sensor. It has
In the case of this embodiment, the rotation motor 73 is configured to change the direction of the adherend WK based on the detection result of the sheet direction detection means 40 .

The operation of the sheet sticking apparatus 10 described above will be described.
First, the user of the sheet sticking device 10 (hereinafter simply referred to as the "user") shows the raw sheet RS in FIG. After setting as described above, a signal for starting automatic operation is inputted to the control means (not shown) through an operation means (not shown) such as an operation panel or a personal computer. Then, the feeding means 20 and the cutting means 30 drive the rotary motors 23A and 31 to feed the original sheet RS, rotate the cutter roller 32 in synchronism with the feeding of the original sheet RS, and cut the adhesive sheet base material ASB. A cut CU is formed and an adhesive sheet AS is formed inside it.
In the case of this embodiment, the planar shape of the adhesive sheet AS is rectangular as shown in FIG. Considering that the shape of the peeling edge 50A is a straight line in an orthogonal view (hereinafter simply referred to as "orthoscopic view"), the peeling start edge ASF of the adhesive sheet AS is not parallel to the peeling edge 50A. It is adapted to form a notch CU. Further, when the adhesive sheet AS is fed out together with the raw sheet RS, the sheet direction detection means 40 detects the center line CLA passing through the centers of the two short sides of the adhesive sheet AS and the original sheet as shown in FIG. The inclination θ1 of the adhesive sheet AS, which is the inclination with respect to the feeding direction LD of the anti-RS, is detected, and the orientation thereof is detected.

After that, as shown in FIGS. 1A and 2, an imaging means such as a camera, an optical sensor, or the like detects that the leading adhesive sheet AS has been peeled off from the release sheet RL by the release edge 50A of the release plate 50 by a predetermined length. When the leading end detection means (not shown) detects it, the feed means 20 and the cutting means 30 stop driving the rotation motors 23A and 31 and enter a standby state. Then, when the adherend WK is placed on the support surface 74A by a user or a conveying means such as an articulated robot or a belt conveyor (not shown), the moving means 70 drives the depressurizing means (not shown) to move the adherend. WK suction and hold is started.
In the case of this embodiment, the adherend WK has the same rectangular shape as the adhesive sheet AS in a plan view looking down from above in the state of FIG. 1(A).

After that, the moving means 70 drives the rotation motor 73 and the adherend direction detection means 75, and the adhesion direction SD, which is the inclination between the center line CLW passing through the centers of the two short sides of the adherend WK and the adhesion direction SD, is detected. The support table 74 is rotated so that the inclination .theta.2 of the body WK becomes the same angle as the inclination .theta.1 of the adhesive sheet AS. Then, the moving means 70 drives the linear motor 71 to move the support table 74 leftward, and the arrival of the adherend WK at a predetermined position is detected by an imaging means such as a camera or a projector, an optical sensor or a sound wave sensor. When the adherend detecting means (not shown) such as various sensors detects, the feeding means 20 and the cutting means 30 drive the rotation motors 23A and 31 to form the adhesive sheet AS on the adhesive sheet base material ASB, and The original fabric RS is delivered in accordance with the transport speed of the adhered body WK. As a result, the adhesive sheet AS is peeled off from the release sheet RL by the release edge 50A of the release plate 50 as indicated by the two-dot chain lines in FIGS. It is pressed and attached to the upper surface.

After the entire adhesive sheet AS has been attached to the adherend WK, when the leading end detection means (not shown) detects that the next adhesive sheet AS has been peeled off from the release sheet RL by the peel edge 50A of the release plate 50 by a predetermined length, The feeding means 20 and the cutting means 30 stop driving the rotation motors 23A and 31, and enter the standby state again. When the adherend WK to which the entire adhesive sheet AS is adhered reaches a predetermined position on the left side of the pressure roller 60, a product (not shown) such as imaging means such as a camera or a projector, various sensors such as an optical sensor or a sound wave sensor, etc. When detected by the detection means, the moving means 70 stops driving the linear motor 71 and the decompression means (not shown). After that, the user or a transporting means (not shown) transports the adherend WK having the adhesive sheet AS attached to the next step, and then the moving means 70 drives each driving device to return the support table 74 to the initial position. After that, the same operation as described above is repeated.

According to the embodiment as described above, the shape of the peeling edge 50A of the peeling plate 50 is considered, and the cut CU is formed so that the peeling start edge ASF of the adhesive sheet AS is not parallel to the peeling edge 50A. The adhesive sheet AS is prevented from being peeled off at once at the peeling edge 50A of the peeling plate 50, and the adhesive sheet AS can be attached to the adherend WK without causing peeling defects at the peeling plate 50. Can be pasted.

The means and steps in 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. The process is not limited at all. For example, if the feeding means is capable of feeding the raw material in which the strip-shaped release sheet is temporarily attached to the adhesive surface of the strip-shaped adhesive sheet base material, it is within the technical scope in light of the common general knowledge at the time of filing. There is no limitation as long as it is a thing (other means and steps are the same).

When the adhesive sheet AS is peeled off from the release sheet RL, the delivery means 20 may perform torque control of the rotation motor 23A so that a predetermined tension is applied to the original sheet RS, or the support roller 21 and the guide rollers may be controlled. Instead of rollers such as 22, a plate-shaped member or a shaft member may be used to support or guide the original fabric RS. The RS may be supported so that it can be extended, the release sheet RL may be fan-folded without being wound, or the release sheet RL may be shredded and recovered, or the release sheet RL may not be recovered. good too.

The cutting means 30 considers the shape of the peeling edge 50A of the peeling plate 50, and if the peeling start edge ASF of the adhesive sheet AS is not parallel to the peeling edge 50A, any shape of the cutout CU can be used. may be formed to form an adhesive sheet AS of any shape, a cutter roller 32 having a cutting blade 33 directly provided on the peripheral surface may be employed, or a cutting blade 33 may be formed on the peripheral surface A detachable cutter roller 32 may be employed so that the direction of the cutting blade 33 can be changed on the peripheral surface. Note that when the cutter roller 32 having the cutting blade 33 directly provided on the peripheral surface is adopted, the shape of the peeling edge 50A of the peeling plate 50 is taken into consideration, and the peeling start edge ASF of the adhesive sheet AS is parallel to the peeling edge 50A. The cutting blade 33 may be formed in advance on the peripheral surface of the cutter roller 32 so that the cutting blade 33 does not become distorted. Considering the shape of the peeling edge 50A, the detachable cutting blade 33 may be attached to the peripheral surface of the cutter roller 32 so that the peeling start edge ASF of the adhesive sheet AS is not parallel to the peeling edge 50A. .

The sheet direction detection means 40 detects the inclination between the center line passing through the centers of the two long sides of the adhesive sheet AS formed on the adhesive sheet base material ASB and the delivery direction LD of the original fabric RS, thereby detecting the orientation. Alternatively, the orientation of the adhesive sheet AS may be detected by detecting the inclination of one side of the adhesive sheet AS, or the orientation of the adhesive sheet AS may be detected by observing the entire image of the adhesive sheet AS. Then, the direction of the adhesive sheet AS is determined by looking at a part of the outer edge of the adhesive sheet AS, patterns, characters, marks written on the adhesive sheet AS, and specific parts such as those laminated on the adhesive sheet AS. Any detection method may be adopted as long as the direction of the adhesive sheet AS formed on the adhesive sheet base material ASB can be detected, and even if the sheet sticking apparatus 10 of the present invention does not have it, good.

The stripping means may have a stripping edge of an arc shape or other shape when viewed orthogonally. Considering that, the peel start edge ASF of the adhesive sheet AS is formed with an arc portion having the same shape as the peel edge or other shaped portion so that the peel start edge ASF and the peel edge are not parallel to each other. , a notch CU may be formed.

The pressing means may include a driving device as a pressing means contacting/separating means for moving the pressing roller 60 toward and away from the adherend WK to prevent the adherend WK from being stressed or damaged. As such pressing means contacting/separating means, other than the driving device, the pressing roller 60 may be manually moved.

When the moving means 70 aligns the adherend WK with the orientation of the adhesive sheet AS formed on the adhesive sheet base material ASB, the orientation of the adherend WK placed on the support surface 74A is known in advance. In this case, the support table 74 may be rotated based on the detection result of the sheet direction detection means 40 without adopting the adherend direction detection means 75, and based on the detection result of the sheet direction detection means 40, When the adherend WK is placed on the support table 74 in accordance with the orientation of the adhesive sheet AS, the rotating motor 73 may not be rotated, or the rotating motor 73 may be eliminated, or the adhesive sheet base may be removed. When the orientation of the adhesive sheet AS formed on the material ASB is fixed, if the adherend WK is placed on the support table 74 in accordance with the fixed orientation of the adhesive sheet AS, it can be rotated. At least one of the motor 73, sheet orientation detection means 40 and adherend orientation detection means 75 may be omitted.
The moving means 70 may move the peeling plate 50 and the pressing roller 60 without or while moving the adherend WK, or the sheet direction detecting means 40 and the adherend direction detecting means 75 may be employed. Alternatively, a rotating member supported on the base plate 72 to rotatably support the support table 74 and the support table 74 may be used as displacement means. After manually rotating the support table 74, the rotation of the support table 74 may be manually suppressed by the fixing means. When the peeling plate 50, the pressure roller 60, etc., and the adherend WK are moved relative to each other in the apparatus, the sheet sticking apparatus 10 of the present invention does not have to have them.

The sheet sticking device 10 may be placed upside down or sideways to stick the adhesive sheet AS to the adherend WK.
The shape of the adherend WK and the adhesive sheet AS may be a square, or may be the same shape such as a triangle, a polygon of pentagon or more, a circle, or an oval, or they may not be the same shape. may be the same size, or may be different sizes.

The materials, types, shapes, etc. of the adhesive sheet base material ASB, the adhesive sheet AS and the adherend WK in the present invention are not particularly limited. For example, the adhesive sheet AS may have a circular shape, an elliptical shape, a polygonal shape such as a triangle or a quadrangle, or other shapes, and may have adhesive forms such as pressure-sensitive adhesiveness and heat-sensitive adhesiveness. When a heat-sensitive adhesive sheet base material ASB or adhesive sheet AS is used, it may be adhered by an appropriate method such as providing a heating means such as an appropriate coil heater or heat pipe for heating them. . Further, such adhesive sheet base material ASB and adhesive sheet AS may be, for example, a single layer having only an adhesive layer, one having an intermediate layer between the base material and the adhesive layer, or a cover material on the upper surface of the base material. It may be a so-called double-sided adhesive sheet that can separate the substrate from the adhesive layer. It may be one having an intermediate layer, or one having a single layer or multiple layers without an intermediate layer. Examples of the adherend WK include food, resin containers, semiconductor wafers such as silicon semiconductor wafers and compound semiconductor wafers, information recording substrates such as circuit boards and optical discs, glass plates, steel plates, ceramics, wood plates, resins, and the like. It may be a single substance, or a composite formed by two or more of them, and may be a member or article of any shape. In addition, the adhesive sheet AS can be arbitrarily used, for example, a label for information recording, a label for decoration, a protective sheet, a dicing tape, a die attach film, a die bonding tape, a resin sheet for forming a recording layer, etc. sheet, film, tape, or the like.

The driving device in the above embodiment employs electric devices such as rotary motors, direct-acting motors, linear motors, single-axis robots, multi-joint robots, actuators such as air cylinders, hydraulic cylinders, rodless cylinders, rotary cylinders, and the like. In addition, a direct or indirect combination thereof can also be employed.
In the above embodiment, when rollers are employed, a driving device for rotating the rollers may be provided, or the surfaces of the rollers or the rollers themselves may be made of a deformable member such as rubber or resin. The surface of the roller or the roller itself may be made of a member that does not deform, and if a pressing means or pressing member such as a pressing roller or a pressing head is employed, it may be used in place of or in combination with the above examples. A member such as a roller, a round bar, a blade material, rubber, resin, sponge, or the like may be employed, or a configuration in which pressure is applied by blowing air or gas may be employed. It may be composed of a deformable member such as rubber or resin, or may be composed of a non-deformable member. A member such as a plate-shaped member, a round bar, or a roller may be employed instead of or in combination with the above, and the peeling means and the peeling member may be formed of a deformable member such as rubber or resin. However, it may be composed of a member that does not deform, or if a support (holding) means or a support (holding) member that supports or holds the supported member is employed, a mechanical chuck, chuck cylinder, or the like may be used to hold the member. Means, coulomb force, adhesive, adhesive, magnetic force, Bernoulli adsorption, drive equipment, etc. may be used to support (hold) the supported member. Instead of or in combination with the above examples, cutter blades, laser cutters, ion beams, thermal power, heat, water pressure, heating wires, spraying of gas, liquid, etc. are used for cutting, or appropriate A combination of driving devices may be used to move the material to be cut for cutting, or when biasing means is employed, it may be composed of a spring, rubber, resin, or the like.

DESCRIPTION OF SYMBOLS 10... Sheet sticking apparatus 20... Feeding means 30... Cutting means 40... Sheet direction detection means 50... Peeling plate (peeling means)
50A... Stripping edge 60... Pressing roller (pressing means)
70... Moving means 73... Rotary motor (displacement means)
AS... Adhesive sheet ASB... Adhesive sheet base material ASF... Peel start edge AS1... Adhesive surface CU... Notch RL... Release sheet RS... Original fabric WK... Adherend

Claims (3)

a feeding means for feeding the original fabric in which the strip-shaped release sheet is temporarily attached to the adhesive surface of the strip-shaped adhesive sheet base material;
a cutting means for forming an adhesive sheet inside the cut by forming a cut of a predetermined shape in the adhesive sheet base material of the raw fabric fed out by the feeding means;
a peeling means for folding back the raw material fed by the feeding means at a linear peeling edge to peel the adhesive sheet from the release sheet;
a pressing means for pressing and attaching the adhesive sheet peeled by the peeling means to an adherend;
The peeling means, the pressing means, and the moving means for relatively moving the adherend in a predetermined sticking direction,
Considering that the shape of the peeling edge of the peeling means is straight, the cutting means can form the cut so that the peeling start edge of the adhesive sheet is not parallel to the peeling edge. is,
The sheet sticking device , wherein the moving means includes displacement means for changing the direction of the adherend according to the direction of the adhesive sheet formed on the adhesive sheet base material . A sheet direction detection means for detecting the orientation of the adhesive sheet formed on the adhesive sheet base material is provided, and the displacement means changes the orientation of the adherend based on the detection result of the sheet direction detection means. The sheet sticking device according to claim 1 . A feed-out step of feeding out a raw fabric in which a strip-shaped release sheet is temporarily attached to the adhesive surface of a strip-shaped adhesive sheet base material;
a cutting step of forming a cut of a predetermined shape in the adhesive sheet base material of the raw fabric fed out in the feeding step, thereby forming an adhesive sheet inside the cut;
a peeling step of folding back the raw material fed out in the feeding step at a peeling edge of a linear peeling means to peel off the adhesive sheet from the peeling sheet;
A pressing step of pressing and attaching the adhesive sheet peeled in the peeling step to an adherend by a pressing means ;
a moving step of relatively moving the peeling means, the pressing means, and the adherend in a predetermined sticking direction ;
In the cutting step, considering that the shape of the peeling edge of the peeling means is straight, the cut is formed so that the peeling start edge of the adhesive sheet is not parallel to the peeling edge ,
The sheet sticking method , wherein the moving step changes the orientation of the adherend according to the orientation of the adhesive sheet formed on the adhesive sheet base material by displacement means .

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