JP6307720B2 - Sheet feeding apparatus and sheet feeding method - Google Patents

Description

  The present invention relates to a sheet supply apparatus and a sheet supply method for supplying an adhesive sheet.

  For example, Patent Document 1 discloses a sheet feeding device used in a sheet sticking device for sticking an adhesive sheet to an adherend. The sheet supply apparatus of Patent Document 1 is configured to support a wound original fabric on a support shaft and guide it onto a peel plate.

JP 2008-211102 A

However, in the sheet supply apparatus of Patent Document 1, the original fabric is drawn from the wound state, and the direction is changed by an obstacle such as a pair of nip rollers and a guide roller. Therefore, depending on the material of the adhesive sheet, Inconveniences such as scratching the surface of the adhesive sheet or curling the adhesive sheet, or inconveniences such as damaging the adhesive sheet when the adhesive sheet is made of a fragile member. .
An object of the present invention is to provide a sheet feeding apparatus and a sheet feeding method that can feed out while protecting an adhesive sheet.

In order to achieve the above object, a sheet feeding apparatus according to one aspect of the present invention supports an original fabric in which an adhesive sheet is temporarily attached to one surface of a release sheet and wound, and the original fabric is The feeding means includes a feeding means and a peeling means having a peeling edge for peeling the adhesive sheet from the original fabric fed by the feeding means, and the feeding means is configured to remove the peeling edge from the unwinding portion of the wound original fabric. the sheet peeling Maehara anti portion located between the up have a plane maintaining means for positioning within a predetermined plane, said plane maintaining means includes a unwinding portion detecting means for detecting the position of the unwinding unit, solves the winding And a driving device that positions the entire unstretched original fabric portion in the predetermined plane in accordance with a reduction in the diameter of the wound original fabric, based on the detection result of the part detection means .

In order to achieve the above object, a sheet supply apparatus according to another embodiment of the present invention supports an original sheet in which an adhesive sheet is temporarily attached to one surface of a release sheet and wound, and A feeding means for feeding out the web; and a peeling means having a peeling edge for peeling off the adhesive sheet from the original fabric fed out by the feeding means, wherein the feeding means is arranged from the unwinding portion in the wound web. the sheet peeling Maehara anti portion located until peeling edge have a plane maintaining means for positioning within a predetermined plane, said plane maintaining means, the outer diameter detecting means for detecting the outer diameter of the wound raw And a driving device that positions the entire original sheet portion before sheet peeling within the predetermined plane in accordance with the reduction of the diameter of the wound original film, based on the detection result of the outer diameter detecting means. It is .

  According to the present invention, since the original fabric part before sheet peeling is located within a predetermined plane, the surface of the adhesive sheet is damaged by changing the direction by an obstacle, or the adhesive sheet is wrinkled, The adhesive sheet can be prevented from being damaged, and the adhesive sheet can be protected and fed out.

Further, in accordance with the reduction of the outer diameter of the wound raw, a sheet peeling Maehara reaction portion can be located in a predetermined plane.

The side view of the sheet sticking apparatus concerning 1st Embodiment. (B) is the AA part of (a). The side view of the sheet sticking apparatus concerning 2nd Embodiment. The partial side view of the sheet sticking apparatus concerning a modification.

Hereinafter, a plurality of examples of embodiments of the present invention will be described with reference to the drawings.
Note that the X axis, Y axis, and Z axis in the present specification and drawings are orthogonal to each other, the X axis and Y axis are axes in a predetermined plane, and the Z axis is an axis orthogonal to the predetermined plane. To do. Furthermore, in the present embodiment, when viewed from the near side of FIG. 1 parallel to the Y axis, when indicating the direction, “up” is the arrow direction of the Z axis, “down” is the opposite direction, “ “Left” is the arrow direction of the X axis, “Right” is the opposite direction, “Front” is the front direction orthogonal to the page, and “Rear” is the opposite direction of the Y axis arrow direction.

[First Embodiment]
In FIG. 1, a sheet sticking apparatus 10 according to the first embodiment includes a sheet feeding device 20, a pressing unit 50 including a pressing roller, a personal computer that can control the overall operation of the sheet sticking apparatus 10, a sequencer, and the like. And a control means (not shown), which is disposed above the transport means 60 for transporting the adherend WK.

  The sheet supply device 20 supports the original fabric RS on which the adhesive sheet AS is temporarily attached to one surface of the release sheet RL, and is fed by the feeding device 30 that feeds the original fabric RS, and the feeding device 30. And peeling means 40 having a peeling edge 41A for peeling the adhesive sheet AS from the raw fabric RS. In the case of the present embodiment, the adhesive sheet AS has an adhesive layer AD laminated on one surface of the base sheet BS. Moreover, although the raw fabric RS is wound around the outer periphery of the cylindrical member RS1 and exhibits the central hole RS2 in the central portion by the opening of the cylindrical member RS1, there is no cylindrical member RS1 and the central hole in the central portion. RS2 may be exhibited.

  The feeding means 30 includes a plane maintaining means 31 that positions the unstretched sheet portion RS4 located between the unwinding portion RS3 and the peeling edge 41A in the wound original fabric RS within a predetermined plane, and a driving device. A pinch roller 33 that sandwiches the release sheet RL between the rotation roller 32A and a drive roller 32 that is driven by a rotation motor 32A, and a recovery roller 34 that is driven by a driving device (not shown) and collects the release sheet RL, directly or indirectly. It is supported by the support frame 35.

  The plane maintaining means 31 is inserted into the central hole RS2 and is displaceable by supporting a first support shaft 36 as a first support means for rotatably supporting the original fabric RS, and the first support shaft 36 supported by a slider 37A. A linear motor 37 serving as a first displacement means, and an unrolling part detection means 38 such as an optical sensor or an imaging means for detecting the position of the unwinding part RS3 of the original fabric RS.

  The peeling means 40 includes a peeling plate 41 supported by the support frame 35, the left end portion of the peeling plate 41 is a peeling edge 41A, and the upper surface 41B supports the original fabric RS from the peeling sheet RL side. . In addition, above the upper surface 41B of the peeling plate 41, printing means such as an ink jet printer or a thermal printer, an optical sensor for detecting the rear end portion of the adhesive sheet AS, or inspecting the state of the surface of the adhesive sheet AS, and an imaging device. Attached equipment SP such as detecting means such as means is arranged. Therefore, the plane maintaining means 31 sets the upper surface 41B of the peeling plate 41 as a predetermined plane, and feeds the unstretched raw material portion RS4 within the predetermined plane.

  The conveying means 60 is a table having a linear motor 61 as a driving device and a support surface 62A that is supported by a slider 61A of the linear motor 61 and can hold the adherend WK by holding means (not shown) such as a decompression pump or a mechanical chuck. 62.

Next, a sheet pasting method including a sheet feeding method using the sheet pasting apparatus 10 will be described.
First, after an operator sets the original fabric RS as shown in FIG. 1 and inputs an operation start signal through an input means such as an operation panel or a personal computer (not shown), the plane maintaining means 31 drives the linear motor 37. Then, when the unrolling part detecting means 38 detects that the unrolled part RS is moved up and down and the position of the unwinding part RS3 is located on the extension line of the upper surface 41B of the peeling plate 41, the plane maintaining means 31 is moved to the linear motor. The drive of 37 is stopped. As a result, the original fabric portion RS4 before sheet peeling is positioned within a predetermined plane. Thereafter, the feeding means 30 drives the rotation motor 32A and a driving device (not shown) to feed the original fabric RS. When a detection means (not shown) such as an optical sensor or an imaging means detects that the leading adhesive sheet AS located on the peeling plate 41 has been peeled by a predetermined amount at the peeling edge 41A, the feeding means 30 turns the rotation motor 32A and Driving of a driving device (not shown) is stopped, and the sheet sticking device 10 enters a standby state.

  Then, when a transfer means (not shown) such as a manual or multi-joint robot or a belt conveyor places the adherend WK on the support surface 62A of the table 62 waiting at the initial position indicated by the solid line in FIG. 60 drives a holding means (not shown) to hold the adherend WK, and then drives the linear motor 61 to convey the table 62 in the left direction. Then, when detection means (not shown) such as an optical sensor or imaging means detects that the adherend WK has reached a predetermined position, the feeding means 30 drives the rotation motor 32A and a drive device (not shown), and the adherend The raw fabric RS is fed out in accordance with the conveyance speed of the WK (first step). As a result, the adhesive sheet AS is peeled from the raw fabric RS at the peeling edge 41A (second step), and the pressing means 50 presses and sticks the adhesive sheet AS to the adherend WK. Thereafter, when detecting means (not shown) detects that the next adhesive sheet AS has been peeled off by a predetermined amount at the peeling edge 41A, the feeding means 30 stops driving the rotation motor 32A and the driving device (not shown), and the next deposition is performed. In preparation for sticking to the body WK, the sheet sticking device 10 is again in a standby state. Next, when detecting means such as an optical sensor or imaging means detects that the table 62 holding the adherend WK to which the adhesive sheet AS has been attached has reached the position indicated by the two-dot chain line in FIG. Stops driving the linear motor 61 and the holding means (not shown). Then, after the transfer means (not shown) transports the adherend WK to which the adhesive sheet has been applied to the next process apparatus or the like, the transport means 60 drives the linear motor 61 to return the table 62 to the initial position. Similar operations are repeated.

  Here, when the adhesive sheet AS is pasted and the outer diameter of the wound original fabric RS supported by the first support shaft 36 decreases, the right side of the original fabric portion RS4 before sheet peeling rises, and the adhesive sheet Since the AS comes into contact with the accessory device SP, in the first step, a step of positioning the raw sheet portion RS4 before sheet peeling within a predetermined plane is performed. That is, when the outer diameter of the wound raw fabric RS decreases and the unwinding part RS3 is no longer detected by the unwinding part detection means 38, the plane maintaining means 31 drives the linear motor 37, and the unwinding part RS3 Until the position is detected by the unwinding portion detection means 38, the wound original fabric RS is lowered, and the original fabric portion RS4 before sheet separation is controlled to be always located within a predetermined plane.

  Therefore, according to the first embodiment as described above, the surface of the adhesive sheet AS is changed by changing the direction by an obstacle such as the accessory device SP in order to position the raw sheet portion RS4 before sheet peeling in a predetermined plane. It is possible to prevent the adhesive sheet AS from being scratched, to curl the adhesive sheet AS, or to damage the adhesive sheet AS, thereby protecting and feeding the adhesive sheet AS.

[Second Embodiment]
In FIG. 2, a sheet sticking apparatus 100 according to the second embodiment includes a sheet supply device 200, a pressing unit 500, and a control (not shown) such as a personal computer or a sequencer that can control the overall operation of the sheet sticking apparatus 100. And is disposed above the conveying means 600 for conveying the adherend WK.

  The sheet supply apparatus 200 supports the wound original fabric RS, feeds out the original fabric RS, and supports the original fabric RS fed out by the feeding device 300 from the release sheet RL side. And peeling means 400 having a peeling edge 410A for peeling the adhesive sheet AS from the RS. In the case of this embodiment, the raw fabric RS is wound in a state where there is no opening at the center or in a state where the opening is small, but there may be an opening as in the first embodiment.

  The feeding means 300 includes a plane maintaining means 310 that positions the unstretched sheet portion RS4 located between the unwinding portion RS3 and the peeling edge 410A in the wound original fabric RS within a predetermined plane, and a driving device. A pinch roller 330 that sandwiches the release sheet RL between the drive roller 320 driven by the rotation motor 320A and a collection roller 340 that is driven by a driving device (not shown) and collects the release sheet RL, directly or indirectly. It is supported by the support frame 350.

  The plane maintaining means 310 supports the second support shaft 360 as a pair of left and right second support means for supporting the original fabric RS from below in the direction of gravity and the pair of left and right second support shafts 360 by the respective sliders 370A. A linear motor 370 serving as a second displacement unit, which is a displaceable driving device, and an outer diameter detection unit 380 that detects the outer diameter of the raw fabric RS are provided. As shown by a two-dot chain line in FIG. 2, an auxiliary roller 390 that supports the wound original fabric RS directly below is provided so that the outer diameter of the wound original fabric RS can be supported. May be.

  The outer diameter detection means 380 detects the angles of the roller 381 that can rotate by contacting the outer periphery of the wound original fabric RS, the support shaft 382 that supports the roller 381, and the angle of the support shaft 382. And an angle detection means 383 such as an optical sensor or an angle sensor that can detect the outer diameter of the raw fabric RS.

  The peeling means 400 includes a peeling plate 410 supported by a support frame 350, the left end portion of the peeling plate 410 is a peeling edge 410A, and the upper surface 410B supports the original fabric RS from the peeling sheet RL side. . In addition, the plane maintaining means 310 sets the upper surface 410B of the peeling plate 410 as a predetermined plane, and feeds the unstretched raw material portion RS4 within the predetermined plane.

  The pressing means 500 is supported by a direct acting motor 510 as a driving device and an output shaft 510A of the direct acting motor 510, and a supporting surface 520A capable of holding the adhesive sheet AS by holding means (not shown) such as a decompression pump and an electrostatic chuck. And a support plate 520 having

  The conveyance means 600 is configured by a belt conveyor, an articulated robot, or the like.

Next, a sheet pasting method including a sheet feeding method using the sheet pasting apparatus 100 will be described.
First, after the operator sets the raw fabric RS as shown in FIG. 2 and inputs an operation start signal in the same manner as in the first embodiment, the plane maintaining means 310 is based on the detection result of the angle detecting means 383. Each linear motor 370 is driven, each 2nd support shaft 360 is moved, and the position of unwinding part RS3 is located on the extended line of the upper surface 410B of the peeling board 410. FIG. As a result, the original fabric portion RS4 before sheet peeling is positioned within a predetermined plane. Thereafter, the feeding means 300 drives the rotation motor 320A and a driving device (not shown) to feed the original fabric RS. When the leading adhesive sheet AS located on the peeling plate 410 has reached a predetermined position on the peeling plate 410, when the detection means (not shown) such as an optical sensor or an image pickup means detects, the feeding means 300 rotates. The driving of the driving motor 320A and the driving device (not shown) is stopped, and the sheet sticking device 100 is in a standby state.

  Then, when the conveying means 600 conveys the adherend WK and arranges the adherend WK directly below the support plate 520, the feeding means 300 drives the rotation motor 320A and a driving device (not shown), and the raw material RS is moved. Simultaneously with the feeding (first step), the pressing means 500 drives a holding means (not shown). As a result, the adhesive sheet AS is peeled from the raw fabric RS at the peeling edge 410A (second step), the adhesive sheet AS is held by the support plate 520, and the next adhesive sheet AS reaches a predetermined position on the peeling plate 410. When the detection means (not shown) detects this, the feeding means 300 stops driving the rotation motor 320A and the drive equipment (not shown), and the sheet sticking apparatus 100 is again in the standby state in preparation for the next sticking to the adherend WK. become. Next, the pressing means 500 drives the linear motion motor 510 to lower the support plate 520 and press the adhesive sheet AS against the adherend WK for pasting. Thereafter, after the pressing unit 500 stops driving the holding unit (not shown), the linear motor 510 is driven to raise the support plate 520. And the conveyance means 600 conveys the to-be-adhered body WK with which the adhesive sheet was stuck to the apparatus of the following process, etc., and the same operation | movement is repeated after that.

  Here, when the adhesive sheet AS is pasted and the outer diameter of the wound raw fabric RS supported by each second support shaft 360 decreases, the right side of the raw fabric portion RS4 before sheet peeling descends, Since the original fabric RS comes into contact with the right end portion 410C of the release plate 41, in the first step, a step of positioning the original fabric portion RS4 before sheet separation within a predetermined plane is performed. That is, when the angle detecting means 383 detects that the outer diameter of the wound raw fabric RS has decreased, the plane maintaining means 310 drives each linear motor 370 to maintain the position of the unwinding part RS3 at a fixed position. The raw fabric portion RS4 before sheet peeling is controlled so as to be always located within a predetermined plane.

  Therefore, the second embodiment as described above can achieve the same effects as those of the first embodiment, and even if the wound raw fabric RS has no central hole or a small central hole, the original material can be obtained. Anti-RS can be reliably supported.

[About modified examples]
Note that the means and steps in the present invention are not limited in any way as long as the operations, functions, or steps described for the means and steps can be performed, and moreover, the configuration of the simple embodiment shown in the above embodiment. It is not limited at all to a thing or a process.
For example, the peeling means constituting the present invention is not limited as long as it has a peeling edge for peeling the adhesive sheet from the raw material fed by the feeding means and is within that range in light of the common general technical knowledge of the application. (Description of other means is omitted).

  Further, as shown in FIG. 3, the first support shaft 361 as the first support means that is inserted into the central hole RS2 and rotatably supports the original fabric RS, and supports the first support shaft 361, A support shaft 371 rotatable about the opposite side supporting the first support shaft 361, a biasing means 381 such as a spring or an elastic member for biasing the support shaft 371 downward, and a wound raw material RS A plane maintaining means 311 provided with a support roller 391 for supporting the above from below may be employed.

  Further, the unwinding part detecting means 38 and the outer diameter detecting means 380 detect the length of the unrolled raw material RS, and based on the data, the position of the unwinding part RS3 and the outside of the wound original material RS. The configuration is such that the diameter is determined, or the rotation speed or rotation angle of the wound original fabric RS is counted by a rotation sensor or angle sensor, and the position of the unwinding part RS3 or the wound original film is calculated from the rotation speed or rotation angle. For example, the outer diameter of the anti-RS may be determined.

Further, the peeling means may be constituted by a roller, and the peeling edge in this case is in the vicinity of the contact point with the roller at the tangent line drawn from the unrolled portion RS3 of the original fabric RS toward the outer edge of the roller, The unstretched original fabric portion RS4 is an original fabric RS portion located between the unwinding portion RS3 and the vicinity of the contact.
Further, the plane maintaining means may be configured such that the original fabric portion RS4 before sheet peeling feeds out the original fabric RS with the surfaces other than the upper surfaces 41B and 410B of the release plates 41 and 410 as predetermined planes. For example, the release sheet folded by the release means 40 and 400 The RL folding angle θ1 and the sticking angle θ2 formed by the adherend surface (upper surface) of the adherend WK and the adhesive surface of the adhesive sheet AS peeled off by the peeling means 40 and attached to the adherend surface are predetermined. The configuration may be such that the raw sheet portion RS4 before sheet peeling is positioned within a predetermined plane so as to be maintained at an angle. Thereby, the peeling angle at which the adhesive sheet AS is peeled from the release sheet RL becomes constant, the release conditions of the adhesive sheet AS can be stabilized, and the peeling failure of the adhesive sheet AS can be prevented.
Further, the first and second support shafts 36 and 360 may or may not rotate with respect to the sliders 37A and 370A. Also, the first and second supports serving as the first and second support means. The shafts 36 and 360 and the auxiliary roller 390 may be constituted by a plurality of rotating shafts and a belt wound around them, or may be constituted by a sliding plate provided with a low friction member.
Further, the configuration of the first embodiment includes a pair of left and right second support shafts 360 of the second embodiment, and a linear motor as second displacement means that can displace the second support shafts 360 by supporting each of the second support shafts 360 by respective sliders 370A. 370 may be employed, or the first support shaft 36 that rotatably supports the original fabric RS of the first embodiment in the configuration of the second embodiment, and the first support shaft 36 is supported by a slider 37A. Alternatively, a linear motor 37 as the first displacing means that can be displaced may be employed. Thus, in addition to or instead of one component of the first and second embodiments, the other component of the first and second embodiments may be employed as appropriate.

Furthermore, the peeling means can change the mounting position and mounting angle of the support plate 412 (corresponding to the support plate 41) as shown by a two-dot chain line in FIG. In this case, the unwinding part detecting means 38 is provided at a position indicated by a two-dot chain line in FIG. 1, and the wound original fabric RS is raised along with the feeding of the original fabric RS, so that the original fabric portion RS4 before sheet peeling is always predetermined. It controls so that it may be located in the upper surface 412B of the support plate 412 which is a plane. Moreover, you may comprise the raw fabric RS side of the support plate 412 so that it may expand-contract in a longitudinal direction with the drive device which is not shown in figure. Moreover, you may make it raise / lower the edge part 412C side of the support plate 412 by the drive apparatus which is not shown in figure according to the outer diameter of original fabric RS, without raising / lowering wound original fabric RS.
In addition, the sheet supply device of the present application is not limited to the one used for a sheet sticking device for sticking an adhesive sheet to an adherend, but for example, for supplying an adhesive sheet and sticking the adhesive sheet manually Yes.

Further, the adherend WK is stopped, or while moving the adherend WK, other means such as the sheet sticking apparatuses 10 and 100 are appropriately moved in the left-right direction, and the adhesive sheet AS similar to the above is moved. A pasting operation may be performed.
When the adherend WK is transported by another apparatus, the transport means 60 and 600 are not required in the present invention, and other components that are not described in the independent claims of the present invention are necessary. It suffices to adopt it depending on the situation.

Further, the material, type, shape, and the like of the adhesive sheet AS and the adherend WK in the present invention are not particularly limited. For example, the adhesive sheet AS is not limited to adhesive forms such as pressure-sensitive adhesiveness and heat-sensitive adhesiveness, and when a heat-sensitive adhesive is employed, an appropriate coil heater that heats the adhesive sheet AS. A heating means such as a heat pipe may be provided. Such an adhesive sheet AS is, for example, a single layer having only an adhesive layer AD, an intermediate layer between the base sheet BS and the adhesive layer AD, or a cover on the upper surface of the base sheet BS. It may be a layer having three or more layers, such as a so-called double-sided adhesive sheet that can peel the base sheet BS from the adhesive layer AD. Alternatively, it may have a multilayer intermediate layer, or may be a single layer or multilayer without an intermediate layer. Examples of the adherend WK include foods, resin containers, semiconductor wafers such as silicon semiconductor wafers and compound semiconductor wafers, information recording substrates such as circuit boards and optical disks, glass plates, steel plates, ceramics, wood plates, resin plates, and the like. Any form of member or article can also be targeted. In addition, the adhesive sheet AS is replaced with a functional and intended reading, for example, any information label, decorative label, protective sheet, dicing tape, die attach film, die bonding tape, recording layer forming resin sheet, etc. Any sheet, film, tape, or the like having a shape can be attached to any adherend WK as described above.
Furthermore, the drive device in the embodiment includes an electric device such as a rotation motor, a linear motion motor, a linear motor, a single axis robot, and an articulated robot, an actuator such as an air cylinder, a hydraulic cylinder, a rodless cylinder, and a rotary cylinder. In addition to these, a combination of them directly or indirectly may be employed (they may overlap those exemplified in the above embodiment).

20, 200 Sheet supply device 30, 300 Feeding means 31, 310, 311 Plane maintaining means 36 First support shaft (first support means)
360 Second support shaft (second support means)
37 Linear motor (first displacement means)
370 Linear motor (second displacement means)
40, 400 Peeling means 41A, 410A Peeling edge RS Original fabric RS2 Central hole RS3 Unwinding portion RS4 Original fabric portion before sheet peeling AS adhesive sheet RL Release sheet

Claims (2)

The adhesive sheet is temporarily attached to one surface of the release sheet to support the wound original roll, and the feeding means for feeding out the original roll,
A peeling means having a peeling edge for peeling the adhesive sheet from the raw material fed by the feeding means,
The feeding means may have a plane maintaining means for positioning the sheet peeling Maehara anti portion located between the unwinding part of the wound raw web to said stripping edge in a predetermined plane,
The flat surface maintaining means includes an unwinding part detecting means for detecting the position of the unwinding part, and an unrolled raw material portion of the original unrolled sheet portion based on a detection result of the unwinding part detecting means. A sheet feeding apparatus comprising: a driving device that is positioned in the predetermined plane in accordance with the reduction of the opposite diameter . The adhesive sheet is temporarily attached to one surface of the release sheet to support the wound original roll, and the feeding means for feeding out the original roll,
A peeling means having a peeling edge for peeling the adhesive sheet from the raw material fed by the feeding means,
The feeding means may have a plane maintaining means for positioning the sheet peeling Maehara anti portion located between the unwinding part of the wound raw web to said stripping edge in a predetermined plane,
The flat surface maintaining means includes an outer diameter detecting means for detecting an outer diameter of the wound original fabric, and the entire unwrapped original fabric portion is wound based on a detection result of the outer diameter detecting means. And a driving device that is positioned in the predetermined plane in accordance with a reduction in the diameter of the original fabric .

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