JP2020047883A - Unnecessary sheet removing device and unnecessary sheet removing method - Google Patents

Abstract

To provide an unnecessary sheet removing device and an unnecessary sheet removing method that can prevent unnecessary sheet release failure as much as possible.SOLUTION: An unnecessary sheet removing device EA includes feeding means 10 that feeds a raw sheet RS temporarily attached to a plurality of adhesive sheets AS and an unnecessary sheet US to a strip-shaped release sheet RL, and release means 20 that releases the unnecessary sheet US from the release sheet RL, and the release means 20 includes a first suction roller 21 capable of sucking the unnecessary sheet US on the outer peripheral surface 21A, and first rotational force applying means 22 that rotates the first suction roller 21, and while the unnecessary sheet US is being sucked by the outer peripheral surface 21A of the first suction roller 21, the outer peripheral surface 21A is rotated at the same speed as the feeding speed of the raw sheet RS, and the unnecessary sheet US is released from the release sheet RL.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an unnecessary sheet removing apparatus and an unnecessary sheet removing method.

  2. Description of the Related Art Conventionally, there has been known an apparatus that separates an unnecessary sheet from an original sheet in which a plurality of adhesive sheets and a strip-shaped unnecessary sheet are temporarily attached to a strip-shaped release sheet (for example, see Patent Document 1).

JP 2008-55661 A

  However, in the continuous label manufacturing apparatus 11 (unnecessary sheet removing apparatus) described in Patent Literature 1, the label waste 21A (unnecessary sheet) is given a tension in the longitudinal direction of the unnecessary sheet and is released from the release paper 23 (release sheet). Since the peeling is performed, the unnecessary sheet peeled from the peeling sheet is cut, and there is a disadvantage that the unnecessary sheet peeling failure occurs. Such inconvenience becomes remarkable when the unnecessary sheet is soft or fragile, or when the width is small.

  An object of the present invention is to provide an unnecessary sheet removing apparatus and an unnecessary sheet removing method that can prevent defective peeling of an unnecessary sheet as much as possible.

  The present invention has adopted the configuration described in the claims.

According to the present invention, while the unnecessary sheet is sucked by the outer peripheral surface of the first suction roller, the outer peripheral surface is rotated at the same speed as the feeding speed of the raw material, and the unnecessary sheet is peeled from the release sheet. Accordingly, tension is applied in a direction intersecting the longitudinal direction of the unnecessary sheet, and the unnecessary sheet is separated from the release sheet. Accordingly, it is possible to minimize the application of tension to the unnecessary sheet peeled from the release sheet in the longitudinal direction of the unnecessary sheet, and it is possible to prevent the unnecessary sheet from peeling as poorly as possible.
Further, if the second suction roller is provided, it becomes easy to guide the raw material in a predetermined direction.

FIG. 1 is an explanatory diagram of an unnecessary sheet removing device according to an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In this embodiment, the X axis, the Y axis, and the Z axis are orthogonal to each other. The X axis and the Y axis are axes within a predetermined plane, and the Z axis is an axis orthogonal to the predetermined plane. I do. Furthermore, in the present embodiment, based on the case of viewing from the near side of FIG. 1 parallel to the Y axis, when the direction is indicated, “up” is the arrow direction of the Z axis, “down” is the opposite direction, The left is the direction of the arrow on the X axis, the right is the opposite direction, the front is the front direction in FIG. 1 parallel to the Y axis, and the rear is the opposite direction.

  In FIG. 1, an unnecessary sheet removing device EA includes a feeding unit 10 that feeds out a raw sheet RS in which a plurality of adhesive sheets AS and a strip-shaped unnecessary sheet US are temporarily attached to a strip-shaped release sheet RL, and an unnecessary sheet from the release sheet RL. A pressing unit 30 for pressing the adhesive sheet AS onto a semiconductor wafer (hereinafter also simply referred to as a “wafer”) WF as an adherend, and a support for supporting the wafer WF; The means 40 forms a sheet sticking apparatus EA1.

The feeding means 10 includes a support roller 11 that supports an adhesive sheet laminate RS1 in which a strip-shaped adhesive sheet base material BS is temporarily attached to the release sheet RL and a cover sheet CS is temporarily attached on the adhesive sheet base material BS. A predetermined tension is always applied to the first and second guide rollers 12A and 12B that guide the adhesive sheet laminate RS1 and the like, and the cover sheet CS that is wrapped around the second guide roller 12B and separated from the adhesive sheet base material BS. A cover sheet collecting roller 13 that applies and winds and collects the cover sheet CS, an adhesive sheet AS that forms a closed loop cut CU in the adhesive sheet base material BS, and is located inside the cut CU. A cutting means 14 for forming an unnecessary sheet US located outside the cut CU, and a second suction roller capable of sucking the material RS from which the unnecessary sheet US has been peeled off at its outer peripheral surface 15A. A rotation motor 16 serving as a driving device, which is a second rotational force applying means for supporting the second suction roller 15 with the output shaft 16 </ b> A and rotating the second suction roller 15, and a second suction roller 15. And a first suction roller 21 for urging the sheet RS with each other, and a repetition output applying unit 17 for applying repetition output to the sheet RS from which the unnecessary sheet US has been peeled off. It has a configuration. The outer peripheral surface 15A of the second suction roller 15 can be suction-held by a pressure reducing means (holding means) (not shown) such as a pressure reducing pump or a vacuum ejector.
The cutting means 14 is supported by an output shaft 14B of a rotary motor 14A as a driving device, and has a die-cut roller 14D provided with a cutting blade 14C as a closed-loop cutting member on a circumferential surface, and a synchronous rotation with the die-cut roller 14D. And an anvil roller 14E.
The repetitive output applying means 17 includes a support plate 17C supported by a slider 17B of a linear motor 17A as a drive device, a rotation motor 17D as a drive device supported by the support plate 17C, and a rotation motor 17D (not shown). A predetermined tension is always applied to the release sheet RL between the drive roller 17F supported by the output shaft and sandwiching the release sheet RL with the pinch roller 17E and the pinch roller 17E, and the release sheet RL is wound. And a release sheet collecting roller 17G for collecting the sheet.

  The peeling unit 20 supports a first suction roller 21 that can suck the unnecessary sheet US on an outer peripheral surface 21A thereof, and a first rotational force that supports the first suction roller 21 by an output shaft 22A and rotates the first suction roller 21. A predetermined tension is always applied to the unnecessary sheet US existing between the rotating motor 22 serving as a driving device as a driving device, the guide roller 23 for guiding the unnecessary sheet US, and the first suction roller 21. An unnecessary sheet collecting roller 24 for winding and collecting the unnecessary sheet US is provided. The outer peripheral surface 21A of the first suction roller 21 can be sucked and held by a not-shown depressurizing unit (holding unit) such as a depressurizing pump or a vacuum ejector.

  The pressing unit 30 is shared with the feeding unit 10 and includes a linear motor 17A, a slider 17B, a support plate 17C, a rotating motor 17D, a pinch roller 17E, a driving roller 17F, and a release sheet collecting roller 17G.

  The supporting means 40 is supported by a linear motor 41 as a driving device and an output shaft 41A of the linear motor 41, and can be held by suction by a pressure reducing means (holding means) such as a pressure reducing pump or a vacuum ejector. And a table 42 having a surface 42A.

The operation of the sheet sticking device EA1 including the above unnecessary sheet removing device EA will be described.
First, the user of the sheet sticking apparatus EA1 (hereinafter, simply referred to as “user”) attaches the adhesive sheet laminate RS1 to the sheet sticking apparatus EA1 in which each member is arranged at an initial position indicated by a solid line in FIG. It is set as shown in the figure, and a signal for starting automatic operation is inputted through operation means (not shown) such as an operation panel and a personal computer. Then, the feeding means 10 and the peeling means 20 drive the rotary motors 14A, 16, 17D, 22 and a pressure reducing means (not shown) to rotate the die-cut roller 14D while feeding out the adhesive sheet laminate RS1, and the adhesive sheet base material BS. By forming a cut CU in a closed loop shape on the base material, a material RS in which the adhesive sheet AS and the unnecessary sheet US are temporarily attached to the release sheet RL is formed, and the material RS is fed.

Next, as shown in FIG. 1, the camera or the projector or the like detects that the leading end of the first adhesive sheet AS temporarily attached to the release sheet RL in the feeding direction has reached a predetermined position below the second suction roller 15. When a sheet leading end detecting device (not shown) including various sensors such as an optical sensor and an ultrasonic sensor detects the output, the feeding unit 10 and the peeling unit 20 stop driving the rotary motors 14A, 16, 17D, and 22.
Here, when the material RS is fed out as described above, the feeding means 10 sucks the material RS with the outer peripheral surface 15A of the second suction roller 15 and moves the outer surface 15A to feed the material RS. Rotation is performed at the same speed as the speed, and the material RS is guided toward the repetitive output applying means 17. On the other hand, the peeling means 20 rotates the outer peripheral surface 21A at the same speed as the feeding speed of the raw material RS while sucking the unnecessary sheet US by the outer peripheral surface 21A of the first suction roller 21, and removes the unnecessary sheet US from the release sheet RL. And the unnecessary sheet US that has been separated is guided toward the unnecessary sheet collecting roller 24. As a result, tension is applied to the raw sheet RS in a direction D2 crossing the longitudinal direction of the raw sheet RS, and the unnecessary sheet US is tensioned in a direction D1 crossing the longitudinal direction of the unnecessary sheet US, The unnecessary sheet US is peeled from the release sheet RL. The unnecessary sheet US guided to the unnecessary sheet collecting roller 24 is wound around the unnecessary sheet collecting roller 24 and collected.
The cover sheet CS is separated from the adhesive sheet base material BS by the second guide roller 12B, and is wound around the cover sheet collecting roller 13 and collected.

  Thereafter, when the user or a transfer means (not shown) such as a belt conveyor or an articulated robot places the wafer WF on the holding surface 42A as shown in FIG. 1, the support means 40 drives the pressure reducing means (not shown). Then, the suction holding of the wafer WF on the holding surface 42A is started. Next, the linear motor 17A is driven in a state where the feeding means 10 locks the driving of the rotation motor 17D, and the support plate 17C is moved rightward as shown by a two-dot chain line in FIG. Roll out. Also at this time, the feeding means 10 and the peeling means 20 drive the rotating motors 14A, 16, 22 to collect the cover sheet CS with the cover sheet collecting roller 13 and form the cut CU in the adhesive sheet base material BS. The raw RS is formed, and the raw RS is sucked by the outer peripheral surface 15 </ b> A of the second suction roller 15, and the raw RS is guided toward the repetitive output applying unit 17. To guide the unnecessary sheet US toward the unnecessary sheet collection roller 24 while sucking the unnecessary sheet US. When the sheet leading end detecting device (not shown) detects that the leading end of the next adhesive sheet AS following the leading adhesive sheet AS has reached a predetermined position below the second suction roller 15, the feeding means 10 and the peeling unit The means 20 stops the driving of the linear motor 17A and the rotating motors 14A, 16 and 22.

  Next, the support means 40 drives the linear motor 41, and as shown by the two-dot chain line in FIG. 1, after raising the table 42, the pressing means 30 drives the linear motor 17A and the rotary motor 17D, The support plate 17C is moved to the left while rolling the roller 17F and pressing the raw material RS against the wafer WF. Thus, the adhesive sheet AS is stuck on the upper surface of the wafer WF, the release sheet RL is peeled off from the adhesive sheet AS, and the peeled release sheet RL is collected by the release sheet collecting roller 17G. Thereafter, when the release sheet RL is completely released from the adhesive sheet AS and the support plate 17C returns to the initial position, the pressing means 30 stops driving the linear motor 17A and the rotation motor 17D.

  Next, after the supporting means 40 drives the linear motion motor 41 to return the table 42 to the initial position, the driving of the pressure reducing means (not shown) is stopped, and the suction holding of the wafer WF on the holding surface 42A is released. Then, the user or a transport unit (not shown) transports the wafer WF on the holding surface 42A to the next step, and thereafter, the same operation as described above is repeated.

  According to the above-described embodiment, while the unnecessary sheet US is sucked by the outer peripheral surface 21A of the first suction roller 21, the outer peripheral surface 21A is rotated at the same speed as the feeding speed of the raw material RS to remove the unnecessary sheet US. Since the unnecessary sheet US is separated from the release sheet RL, the unnecessary sheet US is separated from the release sheet RL by applying tension in a direction D1 intersecting the longitudinal direction of the unnecessary sheet US. Therefore, the tension applied to the unnecessary sheet US peeled from the release sheet RL in the longitudinal direction of the unnecessary sheet US is suppressed as much as possible, and defective peeling of the unnecessary sheet US can be prevented as much as possible.

  As described above, the best configuration and method for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, although the present invention has been particularly shown and described with particular reference to particular embodiments, without departing from the spirit and scope of the invention, the shape, Those skilled in the art can make various modifications in materials, quantities, and other detailed configurations. In addition, the description in which the shapes, materials, and the like disclosed above are limited is merely an example for facilitating the understanding of the present invention, and does not limit the present invention. The description by the name of the member excluding some or all of the limitations such as is included in the present invention.

For example, the feeding means 10 supports, with the support roller 11, the raw sheet RS on which the adhesive sheet AS and the unnecessary sheet US are temporarily attached to the release sheet RL by forming the cut CU in the adhesive sheet base material BS in advance. The source RS may be fed out. In this case, the feeding means 10 may or may not be provided with the cutting means 14.
The feeding means 10 moves the support roller 11, the first and second guide rollers 12A and 12B, the cover sheet collection roller 13, the cutting means 14 and the like without moving the support plate 17C or while moving the support plate 17C. May be drawn out, the raw material RS may be held and pulled out by holding means such as a chuck cylinder or a suction pad, or only the raw material contact area E2 of the outer peripheral surface 15A where the raw material RS comes into contact is sucked. A second suction roller 15 that can be used may be employed, or a second suction roller 15 that can suction the entire outer peripheral surface 15A may be employed. The adhesive sheet laminate RS1 or the raw sheet RS may be unwound, or the cover sheet CS or the release sheet RL may be wound without being wound, for example, by fanfold folding or shredding. It may be to recover Dari chopped in, simply may be recovered by integrating without or to fold fanfold or winding a cover sheet CS and peeling sheet RL.
The cutting means 14 may move the cutting member without moving the adhesive sheet laminate RS1 or while moving the adhesive sheet laminate RS1, form the cut CU in the adhesive sheet base material BS to form the raw material RS, or Before peeling the cover sheet CS from the sheet base material BS, the cover sheet CS may be penetrated, the cut sheet CU may be formed in the adhesive sheet base material BS to form the raw material RS, or as a cutting member, A so-called flat blade that forms a cut CU of a predetermined shape in the adhesive sheet base material BS by separating from and approaching the adhesive sheet base material BS may be employed, or the cutting blade 14C may be moved relative to the die cut roller 14D. It may be detachable or non-detachable, and the second suction roller 15, the rotation motor 16, the urging means (not shown), and the pressure reducing means (not shown) may not be provided.
As the second rotational force applying means, a driving device such as a multi-joint robot having two or more joints or a rotary cylinder may be employed instead of or in combination with the rotating motor 16.

The peeling means 20 may employ the first suction roller 21 capable of sucking only the unnecessary sheet contact area E1 of the outer peripheral surface 21A where the unnecessary sheet US contacts, or the first suction roller 21 capable of suctioning the entire outer peripheral surface 21A. One suction roller 21 may be employed, or the unnecessary sheet US may be collected by, for example, fan-folding or cutting with a shredder or the like.
As the first rotational force applying means, a driving device such as a multi-joint robot having two or three or more joints or a rotary cylinder may be employed instead of or in combination with the rotating motor 22.

  The pressing means 30 is shared with the feeding means 10 instead of part or all of the linear motor 17A, the slider 17B, the support plate 17C, the rotating motor 17D, the pinch roller 17E, the driving roller 17F, and the release sheet collecting roller 17G. May be employed, or the raw sheet RS may be pressed against the wafer WF from above the release sheet RL with a pressing member supported on the output shaft of a linear motor as a driving device, and the adhesive sheet AS may be used as the wafer WF. Or holding the release sheet RL with a holding member supported by an output shaft of a linear motion motor as a driving device and capable of being suction-held by a decompression means such as a decompression pump or a vacuum ejector. A configuration may be adopted in which the release sheet RL held in the step is separated from the adhesive sheet AS and separated.

  The support means 40 may not have the holding means, may make the wafer WF abut on the adhesive sheet AS when the table 42 is raised, may or may not make the wafer WF abut, and may be provided by another device. When supporting the wafer WF, the sheet pasting device EA1 may not be provided.

The unnecessary sheet removing apparatus EA is, for example, a raw sheet RS in which a plurality of adhesive sheets AS are temporarily attached at predetermined intervals to a strip-shaped release sheet RL, in addition to the sheet attaching apparatus EA1, and there is no unnecessary sheet US. The present invention may be applied to any material, such as a material manufacturing apparatus that forms the material RS, a printing machine or a printer that performs predetermined printing or printing on the adhesive sheet AS.
The unnecessary sheet US may be temporarily attached to the surface of the release sheet RL to which the adhesive sheet AS is temporarily attached, or may be temporarily attached to the surface of the release sheet RL to which the adhesive sheet AS is not temporarily attached. When the adhesive sheet AS of the release sheet RL is temporarily attached to the temporarily attached surface, the adhesive sheet AS may be temporarily attached adjacent to the adhesive sheet AS so as not to overlap with the adhesive sheet AS, It may be temporarily attached so as to be away from the adhesive sheet AS so as not to overlap with the AS, or may be temporarily attached so as to overlap with the adhesive sheet AS.

  The material, type, shape, and the like of the adhesive sheet AS, the unnecessary sheet US, and the adherend 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, or may have an adhesive form such as pressure-sensitive adhesiveness or heat-sensitive adhesiveness. When the heat-sensitive adhesive sheet AS is employed, the adhesive sheet AS may be adhered by an appropriate method such as providing an appropriate coil heater for heating the adhesive sheet AS or a heating means such as a heating side such as a heat pipe. In addition, such an adhesive sheet AS is, for example, a single layer having only an adhesive layer, a sheet having a substrate and an adhesive layer, a sheet having an intermediate layer between the substrate and the adhesive layer, and the like. Layer or two or more layers, and further, a so-called double-sided adhesive sheet capable of peeling the substrate from the adhesive layer may be used, and the double-sided adhesive sheet may be a single-layer or multilayer intermediate layer Or a single-layer or multilayer having no intermediate layer. Examples of the adherend include foods, resin containers, semiconductor wafers such as silicon semiconductor wafers and compound semiconductor wafers, circuit substrates, information recording substrates such as optical disks, glass plates, steel plates, pottery, wood plates, resin plates, and the like. It may be a simple substance or a composite formed by two or more of them, and may be a member or an article of any form. In addition, the adhesive sheet AS may be replaced with a functional or application-specific reading method. Any sheet, film, tape, or the like having the shape described above may be used.

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 the means and steps, much less the constituents of only one embodiment shown in the above embodiment and There is no limitation to the process at all. For example, if the feeding means can feed out an original sheet in which a plurality of adhesive sheets and a strip-shaped unnecessary sheet are temporarily attached to a strip-shaped release sheet, the feeding means can be compared with the common general technical knowledge at the time of filing the application. There is no limitation as long as it is within the range (the description of other means and steps is omitted).
Driving devices in the above embodiment include electric motors such as a rotary motor, a linear motion motor, a linear motor, a single-axis robot, a multi-joint robot having two or three or more joints, an air cylinder, a hydraulic cylinder, and a rodless. Actuators, such as cylinders and rotary cylinders, can be employed, and those obtained by directly or indirectly combining them can be employed.
In the embodiment, when a rotating member such as a roller is employed, a driving device for rotating the rotating member may be provided, or the surface of the rotating member or the rotating member itself may be deformable such as rubber or resin. It may be constituted by a member, may be constituted by a member that does not deform the surface of the rotating member or the rotating member itself, or may be a member that presses an object to be pressed such as pressing means such as a pressing roller or a pressing head or a pressing member. When employed, instead of or in combination with those exemplified above, a member such as a roller, a round bar, a blade material, rubber, a resin, a sponge, or the like, or pressed by blowing air or gas such as gas. Or a member to be pressed may be formed of a deformable member such as rubber or resin, or may be formed of a member that does not deform, or a peeling plate or a peeling roller. Peeling means and peeling When a member such as a member that separates an object to be separated is used, a member such as a plate member, a round bar, a roller, or the like may be used instead of or in combination with the above examples, or the member may be separated. The object may be formed of a deformable member such as rubber or resin, or may be formed of a member that does not deform, or supports or holds a supported member such as a supporting (holding) means or a supporting (holding) member. When such a device is used, gripping means such as a mechanical chuck or a chuck cylinder, Coulomb force, adhesive (adhesive sheet, adhesive tape), adhesive (adhesive sheet, adhesive tape), magnetic force, Bernoulli suction, suction suction, A configuration in which a supported member is supported (held) by a driving device or the like may be employed, or a member that cuts a member to be cut such as a cutting unit or a cutting member, or forms a cut or a cutting line in the member to be cut. If employed, Instead of or in combination with those exemplified in the above, a cutter blade, a laser cutter, an ion beam, thermal power, heat, water pressure, a heating wire, or a material that is cut by spraying a gas or liquid, or the like, may be used, or an appropriate material may be used. The cutting device may be combined with a driving device to move and cut, or when a biasing unit is employed, the cutting device may be formed of a spring, rubber, resin, or the like.

EA: unnecessary sheet removing apparatus 10: feeding means 15: second suction roller 15A: outer peripheral surface 16: rotating motor (second rotating force applying means)
Reference Signs List 20 peeling means 21 first suction roller 21A outer peripheral face 22 rotating motor (first rotating force applying means)
AS: Adhesive sheet RL: Release sheet RS: Raw material US: Unnecessary sheet

Claims (3)

A feeding unit that feeds out an original sheet in which a plurality of adhesive sheets and a strip-shaped unnecessary sheet are temporarily attached to a strip-shaped release sheet,
A peeling unit that peels off the unnecessary sheet from the release sheet,
The peeling unit includes a first suction roller capable of sucking the unnecessary sheet on an outer peripheral surface thereof, and a first rotational force applying unit for rotating the first suction roller. An unnecessary sheet removing apparatus, wherein the unnecessary sheet is peeled off from the release sheet by rotating the outer peripheral surface at the same speed as the feeding speed of the raw sheet while sucking the unnecessary sheet.   A second suction roller capable of suctioning the raw material from which the unnecessary sheet has been peeled off at an outer peripheral surface thereof; a second rotational force applying means for rotating the second suction roller; and the second suction roller And a biasing means for biasing the first suction roller and the first suction roller with each other. While the raw material is sucked by the outer peripheral surface of the second suction roller, the outer peripheral surface has the same speed as the feeding speed of the raw material. 2. The unnecessary sheet removing apparatus according to claim 1, wherein the unnecessary sheet is rotated. A feeding step in which a plurality of adhesive sheets and a strip-shaped unnecessary sheet are fed out of a web temporarily attached to a strip-shaped release sheet,
Performing a peeling step of peeling the unnecessary sheet from the release sheet,
In the peeling step, while the unnecessary sheet is sucked by the outer peripheral surface of the first suction roller, the outer peripheral surface is rotated at the same speed as the feeding speed of the raw sheet, and the unnecessary sheet is peeled from the release sheet. Characteristic unnecessary sheet removal method.

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