Sheet supply device and sheet supply method, and sheet application device and sheet application method

Abstract

To provide a sheet supply device and a sheet supply method that can prevent the occurrence of a work of removing peeled-off adhesive sheets, and a sheet pasting device and a sheet pasting method.SOLUTION: A sheet supplying device EA includes: feed means 10 for feeding out an original sheet RS having a peeled sheet RL to one side of which an adhesive sheet AS is temporarily attached; peeling means 20 that folds back the peeled sheet RL of the original sheet RS fed out by the feed means 10, peels off the adhesive sheet AS from the peeled sheet RL, and supplies the peeled adhesive sheet AS; and re-temporary attaching means 30 for folding the adhesive sheet AS peeled off by the peeling means 20 in a folding direction of the peeled sheet RL and re-temporarily attaching the adhesive sheet AS to the peeled sheet RL. The re-temporary attaching means 30 is provided with a re-temporary attaching member 34 that moves along the peeled sheet RL folded back by the peeling means 20 and re-temporarily attaches the adhesive sheet AS to the peeled sheet RL.SELECTED DRAWING: Figure 1

Description

[[Technical Field]]

[0001] The present invention relates to a sheet feeding apparatus, a sheet feeding method, a sheet attaching apparatus and a sheet attaching method. [[Background Art]]

[0002] There is known a sheet feeding apparatus that feeds out a raw sheet having an adhesive sheet temporarily attached to a release sheet, and separates and supplies the adhesive sheet from the release sheet (see, for example, Patent Document 1). [[Prior Art Documents]] [[Patent Documents]]

[0003] [[Patent Document 1]] Japanese Unexamined Patent Application Publication No. 2005-104518 [[Summary of the Invention]] [[Problem to be Solved by the Invention]]

[0004] In the printer 1 (sheet feeding apparatus) described in Patent Document 1, the already-separated portion of an IC label 52 (adhesive sheet) separated from a backing sheet 51 (release sheet) is re-temporarily attached to the release sheet by a pressing member 8 (re-temporary attachment member) rotating around an eccentric shaft 14. Therefore, depending on the length of the already-separated portion of the adhesive sheet and the shape of the re-temporary attachment member, the leading end portion of the adhesive sheet in the feeding direction may not be pressed by the re-temporary attachment member and remain separated from the release sheet. In this case, after the re-temporary attachment member is returned to the initial position, the adhesive sheet re-temporarily attached to the release sheet may separate from the release sheet, which disadvantageously results in a work of removing the separated adhesive sheet.

[0005] An object of the present invention is to provide a sheet feeding apparatus, a sheet feeding method, a sheet attaching apparatus and a sheet attaching method that can prevent the occurrence of a work of removing a separated adhesive sheet. [[Means for Solving the Problem]]

[0006] This invention adopts the configuration described in the claims. [Effects of the Invention]

[0007] According to the present invention, the re-adhesion member is moved along the release sheet folded back by the release means, and the adhesive sheet is re-adhered to the release sheet by the re-adhesion member. As a result, the adhesive sheet that has been re-adhered to the release sheet will not peel off from the release sheet, and the work of removing the peeled adhesive sheet can be prevented. [Brief explanation of the drawing]

[0008] [Figure 1] (A) is an explanatory diagram of a sheet application device equipped with a sheet supply device according to one embodiment of the present invention. (B) and (C) are explanatory diagrams of the operation of the sheet application device. [Modes for carrying out the invention]

[0009] One embodiment of the present invention will be described below with reference to the drawings. In this embodiment, the X, Y, and Z axes are orthogonal to each other. The X and Y axes are axes within a predetermined plane, and the Z axis is an axis perpendicular to the predetermined plane. Furthermore, in this embodiment, when directions are indicated based on a view from the front direction in Figure 1(A) parallel to the Y axis, "up" is the direction of the Z-axis arrow and "down" is the opposite direction, "left" is the direction of the X-axis arrow and "right" is the opposite direction, "front" is the front direction in Figure 1(A) parallel to the Y axis and "back" is the opposite direction.

[0010] The sheet supply device EA includes a feeding means 10 that performs a feeding process of feeding out a roll RS on which an adhesive sheet AS is temporarily attached to one side of a release sheet RL; a release plate 20 as a release means that performs a peeling process in which the release sheet RL of the roll RS fed out by the feeding means 10 is folded back and the adhesive sheet AS is peeled off from the release sheet RL and supplied; and a re-attachment means 30 that performs a re-attachment process in which the adhesive sheet AS peeled off by the release plate 20 is folded in the direction of the folding of the release sheet RL and the adhesive sheet AS is re-attached to the release sheet RL. The sheet application device EA1 comprises a sheet supply device EA, a moving means 40 that performs a moving process to move the object to be adhered WK and the sheet supply device EA relative to each other, and a pressing means 50 that performs a pressing process to press and apply the adhesive sheet AS to the object to be adhered WK.

[0011] The feeding mechanism 10 includes a base plate 11 that directly or indirectly supports the components constituting the feeding mechanism 10, a support roller 12 that supports the raw material RS, a guide roller 13 that guides the raw material RS, a drive roller 14 supported on the output shaft (not shown) of a rotary motor 14A which serves as a drive device, which grips the raw material RS with a pinch roller 14B, and a recovery roller 15 supported on the output shaft of a drive device (not shown), which constantly applies a predetermined tension to the release sheet RL that exists between it and the pinch roller 14B while the sheet application device EA1 is in automatic operation, and recovers the release sheet RL.

[0012] The re-adhesion means 30 includes a linear motor 31 as a drive device, a linear motor 32 as a drive device supported by a slider 31A of the linear motor 31, a table 33 supported by the output shaft 32A of the linear motor 32 and having a support surface 33A that can be held by suction using a depressurizing means (holding means) not shown, such as a depressurizing pump or a vacuum ejector, and a re-adhesion roller 34 as a re-adhesion member that is rotatably supported on the table 33 via a bracket 34A and moves along the release sheet RL folded back by the release plate 20 to re-adhere the adhesive sheet AS to the release sheet RL. In this embodiment, the re-adhesion means 30 is also used as a moving means 40.

[0013] In this embodiment, the moving means 40 is also used as the reattachment means 30, and the moving means 40 is equipped with the reattachment means 30.

[0014] The pressing means 50 includes a linear motor 51 as a drive device and a pressing roller 52 rotatably supported on the output shaft 51A of the linear motor 51.

[0015] The operation of the sheet application device EA1, which is equipped with the sheet supply device EA described above, will now be explained. First, the user of the sheet application device EA1 (hereinafter simply referred to as "user") sets the raw material RS as shown in the figure, with each component positioned in the initial position indicated by the solid line in Figure 1(A). Then, a signal to start checking the feed of the raw material RS is input via an operating means (not shown), such as an operation panel or a personal computer. The feed means 10 then drives the rotary motor 14A to perform a feed confirmation operation, which feeds the raw material RS to a predetermined length. If, as a result of pre-operation adjustments, it is necessary to adjust the meandering of the raw material RS or the stopping position of the adhesive sheet AS, the user adjusts the mounting angle and position of each roller, such as the guide roller 13, drive roller 14, and pinch roller 14B, to eliminate meandering of the raw material RS, or adjusts a sensor (not shown) that detects the adhesive sheet AS and stops the feed of the raw material RS, as well as the stopping timing, so that the adhesive sheet AS stops at the appropriate position.

[0016] Furthermore, when the feed confirmation operation is performed and the leading edge of the adhesive sheet AS in the feed direction is detected by imaging means such as a camera or projector, or detection means composed of various sensors such as optical sensors or ultrasonic sensors, as shown by the dashed line in Figure 1(A), the re-adhesion means 30 drives the linear motor 31 and the linear motor 32 to lower the table 33 and then move it to the left. Next, as shown by the dashed line in Figure 1(A), when the re-adhesion roller 34 reaches a position to the left of the already peeled portion AS1 of the adhesive sheet AS, the re-adhesion means 30 drives the linear motor 31 and the linear motor 32 to move the re-adhesion roller 34 above the already peeled portion AS1 of the adhesive sheet AS, as shown in Figure 1(B). Subsequently, the re-adhesion means 30 drives the linear motor 32 to lower the re-adhesion roller 34, as shown by the dashed line in Figure 1(B), causing the previously peeled portion AS1 of the adhesive sheet AS to bend downward. Then, the linear motor 31 and the linear motor 32 are driven to move the re-adhesion roller 34 along the peeled sheet RL that has been folded back by the peeling plate 20, and the re-adhesion roller 34 re-adheses the previously peeled portion AS1 of the adhesive sheet AS to the peeling sheet RL. Next, once the pre-operation adjustments are complete and the user inputs a signal indicating the completion of the feed-out confirmation of the raw material RS via an operating means (not shown), the re-adhesion means 30 drives the linear motor 31 and the linear motor 32 to return the table 33 to its initial position. Then, when the user inputs a signal to start automatic operation via an operating means (not shown), the feeding means 10 drives the rotary motor 14A to feed out the raw material RS, and as shown in Figure 1(C), when the leading edge of the adhesive sheet AS in the feeding direction after feeding confirmation is peeled off by a predetermined length from the peeling edge 20A of the release plate 20, the driving of the rotary motor 14A is stopped.

[0017] Next, when the user or a transport means (not shown) such as an articulated robot or a belt conveyor places the object to be adhered WK at a predetermined position on the support surface 33A, the moving means 40 drives a depressurizing means (not shown) to start adsorption and holding of the object to be adhered WK on the support surface 33A. Subsequently, the pressing means 50 drives a linear motor 51 to lower the pressing roller 52 as shown by the dashed line in Figure 1(C). Next, the moving means 40 drives a linear motor 31 to move the table 33 to the left, and when the table 33 reaches a predetermined position, the feeding means 10 drives a rotary motor 14A to feed out the raw material RS in accordance with the moving speed of the table 33. As a result, the leading adhesive sheet AS is peeled off from the release sheet RL at the release edge 20A of the release plate 20, and the adhesive sheet AS peeled off from the release sheet RL is pressed and attached to the object to be adhered WK by the pressing roller 52 as shown by the dashed line in Figure 1(C).

[0018] When the entire adhesive sheet AS is attached to the adherend WK, and the leading edge of the next adhesive sheet AS following the first adhesive sheet AS is peeled off by a predetermined length at the peeling edge 20A of the release plate 20, the feed mechanism 10 stops driving the rotary motor 14A. Then, when the table 33 reaches a predetermined position to the left of the pressure roller 52, the moving mechanism 40 stops driving the linear motor 31, then stops driving the depressurization mechanism (not shown), and releases the suction holding of the adherend WK on the support surface 33A. Next, when the user or a transport mechanism (not shown) transports the adherend WK with the adhesive sheet AS attached to it to the next process, the moving mechanism 40 drives the linear motor 31 to return the table 33 to its initial position, and the same operation as described above is repeated thereafter.

[0019] According to the above embodiment, the re-adhesion roller 34 is moved along the release sheet RL that has been folded back by the release plate 20, and the adhesive sheet AS is re-adhered to the release sheet RL by the re-adhesion roller 34. As a result, the adhesive sheet AS that has been re-adhered to the release sheet RL will not peel off from the release sheet RL, and the work of removing the peeled adhesive sheet AS can be prevented.

[0020] As described above, the best configuration, method and the like for carrying out the present invention are disclosed in the foregoing description, but the present invention is not limited thereto. That is, although the present invention has been particularly illustrated and described primarily with respect to specific embodiments, those skilled in the art can make various modifications to the above-described embodiments in terms of shape, material, quantity, and other detailed configurations without departing from the scope of the technical idea and object of the present invention. In addition, the above-disclosed descriptions that limit shapes, materials, etc. are illustrative for facilitating understanding of the present invention, and do not limit the present invention. Therefore, descriptions in the names of members from which some or all of the limitations on such shapes, materials, etc. are removed are included in the scope of the present invention.

[0021] For example, the feeding means 10 may feed an original web RS in which a predetermined region partitioned by cuts is used as an adhesive sheet AS, by forming closed-loop cuts or cuts over the entire width in the short direction on a belt-shaped adhesive sheet base material temporarily attached to a belt-shaped release sheet RL. Alternatively, a belt-shaped adhesive sheet original web in which a belt-shaped adhesive sheet base material is temporarily attached to a belt-shaped release sheet RL is employed, and during feeding of the belt-shaped adhesive sheet original web, closed-loop cuts or cuts over the entire width in the short direction are formed on the adhesive sheet base material by a cutting blade serving as a cutting means, and the original web RS in which a predetermined region partitioned by the cuts is used as an adhesive sheet AS may be fed. The original web RS may also be fed from an original web RS folded in fanfold without being wound. In addition, for example, a collecting means that collects the release sheet RL by fanfolding, shredding with a shredder, or randomly accumulating the release sheet RL without winding may be employed, or the collecting means may not be employed. When a signal indicating completion of feeding confirmation of the original web RS is input, the original web RS may be wound in the direction of the support roller 12, and the adhesive sheet AS re-temporarily attached to the release sheet RL may be moved to the upstream side in the original web feeding direction relative to the peeling edge 20A.

[0022] The re-attachment means 30 may, in place of or in combination with the linear motor 32, include, for example, a linear motor as a drive device supported by a slider 31A other than the slider 31A in the linear motor 31 or by a table 33, and the re-attachment roller 34 may be rotatably supported on the output shaft of the linear motor. The re-adhesion means 30 may also include a bending member separate from the re-adhesion member. In this case, for example, it may include a linear motor as a drive device configured separately from the moving means 40, and a bending roller as a bending member rotatably supported on the output shaft of the linear motor. The linear motor is driven to bend the already peeled portion AS1 of the adhesive sheet AS with the bending roller, and then the linear motor 31 and linear motor 32 are driven to move the re-adhesion roller 34 along the peeled sheet RL folded back by the peeling plate 20 to re-adhere the adhesive sheet AS to the peeling plate RL. Alternatively, the linear motor supporting the bending roller and the bending roller may be positioned upstream of the peeling edge 20A of the peeling plate 20 in the direction of raw material dispensing, and these may be moved downstream of the peeling edge 20A of the peeling plate 20 in the direction of raw material dispensing using a drive device such as a linear motor, before bending the already peeled portion AS1 of the adhesive sheet AS with the bending roller. The re-adhesion means 30 does not necessarily have to be used in conjunction with the moving means 40. For example, it may comprise a first linear motor as a drive device, a bending roller as a bending member rotatably supported on the output shaft of the first linear motor, a second linear motor as a drive device having an output shaft parallel to the release sheet RL folded back by the release plate 20, and a re-adhesion roller as a re-adhesion member rotatably supported on the output shaft of the second motor. The first linear motor is driven to bend the previously peeled portion AS1 of the adhesive sheet AS with the bending roller, and then the second linear motor is driven to move the re-adhesion roller along the release sheet RL folded back by the release plate 20 to re-adhere the adhesive sheet AS to the release sheet RL. The re-temporary bonding means 30 may also serve as the pressing means 50. In this case, for example, the peeled portion AS1 of the adhesive sheet AS may be folded by the pressing roller 52 serving as a bending member, or there may be provided a driving device that moves the linear motion motor 51 such that an output shaft 51A thereof is parallel to the release sheet RL folded back by the release plate 20. After moving the linear motion motor 51, the linear motion motor 51 is driven, and the pressing roller 52 serving as a re-temporary bonding member is moved along the release sheet RL folded back by the release plate 20, so that the adhesive sheet AS can be re-temporarily bonded to the release sheet RL. The re-temporary bonding member and the bending member may be formed of a round bar, a blade material, a brush-like member, rubber, resin, sponge, or the like, or may be formed of a gas blowing member such as a nozzle or a blowing pipe connected to a gas supply means such as a pressurized pump turbine. A gas such as air or nitrogen gas may be blown onto the adhesive sheet AS by the gas blowing member to bend the adhesive sheet AS, or the adhesive sheet AS may be re-temporarily bonded to the release sheet RL.

[0023] The moving means 40 does not need to also serve as the re-temporary bonding means 30, and in this case, the re-temporary bonding roller 34 does not need to be supported by the table 33. For the moving means 40, the table 33 that cannot perform suction holding on the support surface 33A may be adopted; the sheet feeding device EA may be moved without moving the adherend WK or while moving the adherend WK; the moving means 40 may be provided in the sheet feeding device EA or the sheet sticking device EA1 of the present invention, or may not be provided therein. When it is not provided, the adherend WK may be moved by another device.

[0024] The pressing means 50 may be configured to include a linear motor as a drive device and a holding member supported on the output shaft of the linear motor, which can be held by suction using a depressurizing means (not shown), such as a depressurizing pump or a vacuum ejector, and to press and attach the adhesive sheet AS held by the holding member to the object WK. Alternatively, it may be configured to be arranged upside down or horizontally together with the sheet supply device EA and the moving means 40, and to press and attach the adhesive sheet AS to the bottom surface or side of the object WK. Alternatively, a drive device may be used as a means for bringing the pressing member closer to and further away from the pressing roller 52 to the object WK, to prevent stress on or damage to the object WK. The sheet supply device EA and sheet attaching device EA1 of the present invention may or may not be provided, and if they are not provided, the adhesive sheet AS may be pressed and attached to the object WK using another device.

[0025] The sheet supply device EA may supply the adhesive sheet AS peeled off from the release sheet RL to a means other than the pressing means 50, for example, a printing device that prints on the adhesive sheet AS, an inspection device that checks the condition of the adhesive sheet AS, or the user.

[0026] The material, type, shape, etc., of the adhesive sheet AS and the adherend WK are not particularly limited. For example, the adhesive sheet AS and adherend WK may be circular, elliptical, polygonal (triangle, square, etc.), or have other shapes. The adhesive sheet AS may also have pressure-sensitive or heat-sensitive adhesive properties. If a heat-sensitive adhesive sheet AS is used, it can be bonded by an appropriate method, such as providing a suitable heating means, such as a suitable coil heater or the heating side of a heat pipe, to heat the adhesive sheet AS. Furthermore, such an adhesive sheet AS may be any type, such as a single layer of adhesive only, a two-layer sheet with a substrate and an adhesive layer laminated together, a three-layer or three-or-more-layer sheet with one or more intermediate layers laminated between the substrate and the adhesive layer, a three-layer or three-or-more-layer sheet with one or more cover layers laminated on the upper surface of the substrate, a sheet in which the substrate, intermediate layer, or cover layer is peelably provided, a single-layer double-sided adhesive sheet consisting only of an adhesive layer, or a double-sided adhesive sheet with adhesive layers laminated on both outermost surfaces of one or more intermediate layers. Furthermore, the adherend WK may be 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 disc, a glass plate, a steel plate, a ceramic, a wooden board, or a resin, or it may be a composite object formed from two or more of these, and any form of component or article can also be included. Note that the adhesive sheet AS may be replaced with 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, based on its functional or functional reading.

[0027] The means and processes in the present invention are not limited in any way as long as they can perform the operations, functions, or processes described for those means and processes, and are certainly not limited at all to the components or processes of a single embodiment shown in the above-mentioned embodiments. For example, the dispensing means can be any means that dispenses a roll of material with an adhesive sheet temporarily attached to one side of a release sheet, and is not limited in any way as long as it is within the scope of the common technical knowledge at the time of filing (the same applies to other means and processes).

[0028] The drive equipment in the above embodiment can be electric equipment such as rotary motors, linear motors, single-axis robots, articulated robots with two or more axes, actuators such as air cylinders, hydraulic cylinders, rodless cylinders, and rotary cylinders, or a combination of these directly or indirectly. In the above embodiment, if a rotating member such as a roller is used, a drive 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, the surface of the rotating member or the rotating member itself may be made of a non-deformable material, other members such as rotating or non-rotating shafts or blades may be used instead of rollers, and if a means or member for pressing the object to be pressed, such as a pressing roller or pressing head, is used, in addition to the examples given above, a means of blowing gas such as air or gas may be used, in addition to rollers, round bars, blade materials, brush-like members, or a means of blowing gas may be used, and the pressing material may be made of a deformable material such as rubber, resin, or sponge, or it may be made of a non-deformable material such as metal or resin, and if a means or member for peeling the object to be peeled, such as a peeling plate or peeling roller, is used, in addition to the examples given above, In combination, plate-shaped members, round bars, rollers, and other members may be used, the material to be peeled off may be made of a deformable material such as rubber or resin, or a non-deformable material, and if a support (holding) means or support (holding) member or other means for supporting (holding) the supported member (held member) is used, a configuration in which the supported member is supported (held) by gripping means such as mechanical chucks or chuck cylinders, Coulomb force, adhesive (adhesive sheets, adhesive tapes), adhesive agents (adhesive sheets, adhesive tapes), magnetic force, Bernoulli adsorption, suction adsorption, drive equipment, etc. may be used, and if a cutting means or cutting member or other means for cutting the member to be cut or forming cuts or cutting lines in the member to be cut is used, instead of or in combination with the examples above, a cutter blade, laser cutter, ion beam, thermal power, heat, water pressure, electric heating wire, spraying of gas or liquid, etc. may be used, or the material to be cut may be moved by combining appropriate drive equipment to perform the cutting. [Explanation of Symbols]

[0029] EA... Sheet supply device 10… Dispensing mechanism 20...Release plate (release means) 20A... peeling edge 30... Reattachment method 34…Re-adhesion roller (re-adhesion component) 40... Means of transportation 50... means of pressing AS...Adhesive sheet RL...Release sheet RS…Raw fabric WK...Adherend

Claims

1. A feeding mechanism for feeding out a roll of material on which an adhesive sheet is temporarily attached to one side of a release sheet, A peeling means that folds back the release sheet of the raw material roll that has been fed out by the feeding means, and peels off the adhesive sheet from the release sheet and supplies it, The system includes a re-adhesion means that folds the adhesive sheet, which has been peeled off by the peeling means, in the direction of the folding of the peeling sheet, and re-adheres the adhesive sheet to the peeling sheet, The sheet supply device is characterized in that the re-adhesion means comprises a table that supports an object to which the adhesive sheet is attached, and a re-adhesion member supported by the table for re-adhesion of the adhesive sheet to the release sheet, and by moving the table, the re-adhesion member is moved along the release sheet folded back by the release means, and the re-adhesion member re-adhedes the adhesive sheet to the release sheet.

2. A feeding process in which a roll of material with an adhesive sheet temporarily attached to one side of a release sheet is fed out, A peeling step in which the release sheet of the raw material unfed in the aforementioned unfed step is folded back, and the adhesive sheet is peeled off and supplied from the release sheet, The adhesive sheet peeled off in the peeling step is folded in the direction of the folding of the release sheet, and the adhesive sheet is reattached to the release sheet in a reattachment step. The sheet supply method is characterized in that, in the re-adhesion step, the table supporting the object to which the adhesive sheet is attached is moved, thereby moving the re-adhesion member supported on the table along the release sheet that was folded back in the peeling step, and the adhesive sheet is re-adhered to the release sheet with the re-adhesion member.

3. A sheet application device using the sheet supply device described in claim 1, The aforementioned sheet supply device, A means for moving the object to be adhered and the sheet supply device relative to each other, The system includes a pressing means for pressing and attaching the adhesive sheet to the object to be adhered, A sheet application device characterized in that the moving means is equipped with the re-attachment means.

4. A method for attaching an adhesive sheet supplied by a sheet supply device according to claim 1 to an object, A moving step of moving the object to be attached and the sheet supply device relative to each other using a moving means equipped with the re-attachment means, A method for attaching a sheet, characterized by performing a pressing step of pressing and attaching the adhesive sheet to the object to be attached.

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