Sheet attachment device

Abstract

To provide a sheet sticking apparatus capable of securely cutting a sheet.SOLUTION: A sheet sticking apparatus 1 for extracting a sheet 200 from a sheet roll obtained by winding the sheet 200 in a roll shape and sticking it on a workpiece comprises: an extraction unit 10 for extracting the sheet 200 from the sheet roll 2; and a sheet cut part 20 for cutting the extracted sheet 200. The sheet cut part 20 comprises: a sheet support part 21 for supporting the extracted sheet 200 from below; a cutter knife 30 for cutting the sheet 200 supported by the sheet support part 21 along the sheet support part 21; and a sheet presser 31 that in cutting the sheet 200, presses the sheet 200 toward the sheet support part 21 in front in a movement direction 25 of the cutter knife 30.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a sheet sticking device. [Background technology]

[0002] BACKGROUND ART In the grinding and dividing of plate-shaped workpieces such as wafers on which semiconductor devices are formed, various package substrates, ceramic substrates, and glass substrates, sheet adhering devices are known that apply adhesive resin tapes or sheets made of thermoplastic resins to protect the surfaces and make them easier to transport.

[0003] The sheet is pulled out from a roll of the sheet and attached to the workpiece, and then the excess sheet along the outer periphery of the workpiece is cut off with a cutter knife. In some cases, the sheet is pulled out into a rectangular shape and then fixed to the workpiece, in which case a predetermined amount of the sheet is pulled out from the sheet roll and cut with a cutter knife (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-143724 Summary of the Invention [Problem to be solved by the invention]

[0005] When a cutter knife loses its sharpness, it cannot cut into the sheet when cutting from the edge, and the sheet becomes twisted, making it even harder to cut. This tendency is particularly pronounced when the sheet material is not stiff like PET (Polyethylene Terephthalate) film, but is flexible like PO (Poly Olefine) sheet.

[0006] SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a sheet sticking device that can reliably cut a sheet. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems and achieve the object, the sheet sticking device of the present invention is a sheet sticking device that pulls out a sheet from a sheet roll wound in a roll shape and sticks the sheet to a workpiece, and includes a pull-out unit that pulls out the sheet from the sheet roll, and a sheet cutting unit that cuts the pulled-out sheet. 、 the sheet cutting unit includes a sheet support portion that supports the pulled-out sheet from below, a cutter knife that cuts the sheet supported by the sheet support portion along the sheet support portion, and a sheet presser that presses the sheet toward the sheet support portion in front of the movement direction of the cutter knife when cutting the sheet. a knife presser moving unit that moves the cutter knife and the sheet presser in a direction parallel to the axis of the sheet roll over the entire length of the sheet support portion; Equipped with The sheet presser includes a parallel portion parallel to the upper surface of the sheet support portion, and upward extending portions connected to both ends of the parallel portion in the moving direction of the cutter knife and extending in a direction away from the upper surface as they move away from the parallel portions, and the upward extending portions are disposed forward of the cutter knife in the moving direction. It is characterized by the following. In the sheet application device, the cutter knife may be attached to one surface away from the sheet roll, and the sheet presser may be attached to the other surface closer to the sheet roll, and an attachment member may be provided which is moved in the parallel direction by the knife presser moving unit.

[0008] In the sheet sticking device, the sheet support portion may have a suction groove for suction-holding the placed sheet, and the suction groove may extend in a direction intersecting with the moving direction of the cutter knife. [Effects of the Invention]

[0009] The present invention has an effect of being able to reliably cut the sheet. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view schematically illustrating an example of the configuration of a sheet sticking device according to the first embodiment. [Figure 2] FIG. 2 is a perspective view showing an example of a workpiece to which a sheet is stuck by the sheet sticking device shown in FIG. [Figure 3] FIG. 3 is a cross-sectional view of the essential parts of the workpiece shown in FIG. 2 with a sheet attached thereto. [Figure 4] 4 is a plan view of a sheet cutting unit of the sheet sticking device shown in FIG. [Figure 5] FIG. 5 is a front view of the sheet cutting unit shown in FIG. [Figure 6] FIG. 6 is a plan view of a main part of the sheet cutting unit shown in FIG. [Figure 7] 7 is a side view of a main part of the sheet cutting unit shown in FIG. [Figure 8] 8 is a plan view of the suction groove of the sheet cutting unit shown in FIG. [Figure 9] FIG. 9 is a plan view of a suction groove of a sheet cutting unit of a sheet sticking device according to a first modified example of the first embodiment. [Figure 10] FIG. 10 is a plan view of a suction groove of a sheet cutting unit of a sheet sticking device according to a second modification of the first embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Modes (embodiments) for carrying out the present invention will be described in detail with reference to the drawings. The present invention is not limited to the contents described in the following embodiments. Furthermore, the components described below include those that can be easily imagined by a person skilled in the art and those that are substantially the same. Furthermore, the configurations described below can be combined as appropriate. Furthermore, various omissions, substitutions, or modifications of the configuration can be made within the scope of the gist of the present invention.

[0012] [Embodiment 1] A sheet sticking device according to a first embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view schematically showing an example of the configuration of the sheet sticking device according to the first embodiment. Fig. 2 is a perspective view showing an example of a workpiece to which a sheet is stuck by the sheet sticking device shown in Fig. 1. Fig. 3 is a cross-sectional view of a main part of the workpiece shown in Fig. 2 in a state where a sheet is stuck to the workpiece.

[0013] The sheet adhering device 1 according to the first embodiment shown in Fig. 1 is a device that adheres a sheet 200 to a workpiece 201 shown in Fig. 2. The workpiece 201 to which the sheet 200 is adhered by the sheet adhering device 1 according to the first embodiment is a wafer such as a disk-shaped semiconductor wafer or an optical device wafer, with a substrate 202 made of silicon (Si), sapphire (Al2O3), gallium arsenide (GaAs), silicon carbide (SiC), or the like.

[0014] The workpiece 201 has a surface 204 divided by a plurality of intersecting planned dividing lines 203, and devices 205 are formed in each of the regions of the surface 204. As shown in Fig. 2, each device 205 has a bump 206 that is connected to an electrode of the device 205 and protrudes from the surface 204. The device 205 is, for example, an integrated circuit such as an IC (Integrated Circuit) or an LSI (Large Scale Integration), an image sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor), or a MEMS (Micro Electro Mechanical Systems).

[0015] The bumps 206 are made of a conductive metal and are formed in a spherical shape in the first embodiment. The bumps 206 electrically connect the device 205 to electrodes of a substrate or the like on which the device 205 is mounted. In the first embodiment, the workpiece 201 has the bumps 206 protruding from the surface 204, thereby forming irregularities on the surface 204. Furthermore, in the first embodiment, the workpiece 201 has the bumps 206, thereby forming irregularities on the surface 204, but in the present invention, the workpiece 201 does not necessarily have to have the bumps 206. Furthermore, in the present invention, the workpiece 201 is not limited to a wafer, and may be a rectangular resin package substrate having a plurality of devices sealed with resin, a ceramic plate, a glass plate, or the like.

[0016] In the first embodiment, the workpiece 201 has a functional layer 207 laminated on the surface of the substrate 202. The functional layer 207 includes a low-k insulating film (hereinafter referred to as a low-k film) made of an inorganic film such as SiOF or BSG (SiOB) or an organic film such as a polymer film of a polyimide or parylene, and a conductive film made of a conductive metal. The low-k film is laminated with a conductive film to form a device 205. The conductive film constitutes the circuit of the device 205. For this purpose, the device 205 is composed of low-k films laminated on each other and a conductive film laminated between the low-k films. The functional layer 207 along the planned dividing line 203 is composed of a low-k film and does not include a conductive film except for a TEG (Test Element Group). The TEG is an evaluation element used to identify design or manufacturing problems that may occur in the device 205.

[0017] In embodiment 1, the workpiece 201 has the resin sheet 211, resin layer 212, and sheet 200 shown in Figure 3 laminated in this order on the surface 204 side, and the back surface 208 side is ground while the surface 204 side is held on the chuck table of the grinding device via the sheet 200, and after being thinned to a predetermined finished thickness, it is divided into individual devices 205 along the planned division lines 203.

[0018] In the first embodiment, the resin sheet 211 is made of a thin, flexible synthetic resin (in the first embodiment, PO (Polyolefin)) and is formed into a sheet shape. The resin sheet 211 is adhered to the surface 204 of the workpiece 201 and the surfaces of the bumps 206 by being in close contact with them.

[0019] In the first embodiment, the resin layer 212 is made of an ultraviolet-curable liquid resin that hardens when irradiated with ultraviolet light, and is laminated on the resin sheet 211. The sheet 200 is made of a thin, flexible synthetic resin (PO (Polyolefin) in the first embodiment) and is formed in a film shape. The sheet 200 is laminated on the resin layer 212.

[0020] After the resin sheet 211 is adhered to the surface 204 and the surface of the bumps 206 of the workpiece 201, the liquid resin that forms the resin layer 212 is applied to the resin sheet 211, the surface of the liquid resin is formed flat along the surface of the substrate 202, and ultraviolet light is irradiated to harden the liquid resin, and the sheet 200 is attached to the resin layer 212.

[0021] 1 according to the first embodiment is an apparatus that pulls out a sheet 200 from a sheet roll 2 on which the sheet 200 is wound in a roll shape, and sticks the sheet 200 to the surface 204 side of a workpiece 201, i.e., the resin layer 212, on which a resin sheet 211 and a resin layer 212 are laminated in this order. As shown in FIG. 1, the sheet sticking apparatus 1 includes the sheet roll 2, a pull-out unit 10, a sheet cutting unit 20, a sheet sticking unit (not shown), and a control unit 100.

[0022] The sheet roll 2 includes a roll 3 that is supported so as to be rotatable about its axis on a housing (not shown) or the like of the sheet sticking device 1. The roll 3 has a strip-shaped sheet 200 wound around its outer periphery, and the sheet 200 is wound in a roll shape.

[0023] The pull-out unit 10 pulls out the sheet 200 from the sheet roll 2. The pull-out unit 10 includes a gripping unit 11 that can grip the leading end of the sheet 200 on the sheet roll 2, and a gripping movement unit 12 that moves the gripping unit 11. Two gripping units 11 are provided at an interval along the width direction of the sheet 200 on the sheet roll 2, i.e., along the axial direction of the roll 3.

[0024] The gripping and moving unit 12 moves the gripping unit 11 toward or away from the sheet roll 2 along the longitudinal direction of the sheet 200, i.e., a direction perpendicular to the axial direction of the roll 3. The direction in which the gripping unit 11 is moved by the gripping and moving unit 12 is hereinafter referred to as the unwinding direction 13 (indicated by an arrow in FIG. 1, etc.).

[0025] In the pull-out unit 10, the gripping unit 11 is brought close to the sheet roll 2 by the gripping movement unit 12, the gripping unit 11 grips the leading end of the sheet 200, and the gripping unit 11 gripping the leading end of the sheet 200 is moved in a direction away from the sheet roll 2 by the gripping movement unit 12, thereby pulling out the sheet 200 from the sheet roll 2.

[0026] The sheet cutting section 20 cuts the sheet 200 drawn out from the sheet roll 2 by the drawing unit 10. FIG. 4 is a plan view of the sheet cutting section of the sheet sticking device shown in FIG. 1. FIG. 5 is a front view of the sheet cutting section shown in FIG. 4. FIG. 6 is a plan view of the main part of the sheet cutting section shown in FIG. 4. FIG. 7 is a side view of the main part of the sheet cutting section shown in FIG. 4. FIG. 8 is a plan view of the suction groove of the sheet cutting section shown in FIG. 4.

[0027] As shown in FIGS. 4, 5, 6 and 7, the sheet cutting unit 20 includes a sheet supporting unit 21, a cutter knife 30, a sheet presser 31, and a knife presser moving unit .

[0028] The sheet support section 21 supports, from below, the sheet 200 drawn out from the sheet roll 2 by the drawer unit 10. The sheet support section 21 includes a first support member 22, a second support member 23, and a support member moving unit 24.

[0029] The first support member 22 and the second support member 23 are disposed below the sheet 200 pulled out from the sheet roll 2 by the pull-out unit 10. The first support member 22 and the second support member 23 are formed in a strip shape, with their longitudinal directions parallel to the axis of the roll 3 of the sheet roll 2 and the width direction of the sheet 200, and are disposed at an interval in the longitudinal direction of the sheet 200.

[0030] The first support member 22 and the second support member 23 have upper surfaces 221, 231 formed flat along the horizontal direction, and the first support member 22 is disposed closer to the sheet roll 2 than the second support member 23. In the first embodiment, as shown in Fig. 4, the first support member 22 is formed shorter than the second support member 23, and one ends 222, 232 of the support members 22, 23 are aligned along the unwinding direction 13, and the other end 223 of the first support member 22 is disposed closer to the one end 222, 232 than the other end 233 of the second support member 23.

[0031] The first support member 22 is raised and lowered by the support member moving unit 24 between a position where the upper surface 221 is flush with the upper surface 231 of the second support member 23 and a position where the upper surface 221 is higher than the upper surface 231 of the second support member 23. The second support member 23 is formed with a groove 234 that is recessed from the upper surface 231 and extends linearly along the longitudinal direction of the second support member 23, i.e., the width direction of the sheet 200. The longitudinal direction of the groove 234 will hereinafter be referred to as the movement direction 25 of the cutter knife 30 (indicated by an arrow in FIG. 1 etc.). The movement direction 25 of the cutter knife 30 is perpendicular to the pulling-out direction 13.

[0032] The sheet support section 21 has upper surfaces 221, 231 positioned on the same plane as the support members 22, 23, on which the sheet 200 drawn out from the sheet roll 2 by the drawer unit 10 is placed, and supports the sheet 200 from below. The sheet support section 21 also has suction grooves 26 that suction-hold the sheet 200 placed on the upper surfaces of the support members 22, 23.

[0033] In the first embodiment, the suction grooves 26 are provided in both the first support member 22 and the second support member 23, and are recessed from the upper surfaces 221, 231. The suction grooves 26 of the second support member 23 are disposed at a position farther from the first support member 22 than the grooves 234. In the first embodiment, a plurality of the suction grooves 26 are provided at intervals in the longitudinal direction of each of the support members 22, 23.

[0034] Suction groove 26 provided in upper surface 221 of first support member 22 is connected to first suction source 281 via first suction path 271 penetrating first support member 22 and the like. First suction path 271 is provided with first on-off valve 291. Suction groove 26 provided in upper surface 231 of second support member 23 is connected to second suction source 282 via second suction path 272 penetrating second support member 23 and the like. Second suction path 272 is provided with second on-off valve 292. When on-off valves 291, 292 are opened and suction is performed by suction sources 281, 282, suction groove 26 sucks and holds sheet 200 placed on upper surfaces 221, 231, and fixes sheet 200 to support members 22, 23.

[0035] 8 and other figures, the suction groove 26 in the first embodiment includes a linear orthogonal portion 261 extending in a direction parallel to the pulling-out direction 13 and perpendicular to (intersecting with) the moving direction 25 of the cutter knife 30, a linear parallel portion 262 extending in a direction parallel to the moving direction 25 of the cutter knife 30, and a pair of linear intersection portions 263 extending in a direction intersecting both the pulling-out direction 13 and the moving direction 25 of the cutter knife 30. In the first embodiment, the orthogonal portion 261, the parallel portion 262, and the pair of intersection portions 263 intersect with each other at the center, and the angle formed by the pair of intersection portions 263 with both the pulling-out direction 13 and the moving direction 25 of the cutter knife 30 is 45 degrees.

[0036] The cutter knife 30 cuts the sheet 200 supported by the sheet support part 21 along the groove 234 of the sheet support part 21. The cutter knife 30 is formed in the shape of a strip whose longitudinal direction is parallel to the vertical direction, and has a cutting blade 301 at its lower end that cuts into the sheet 200 to cut the sheet 200. The cutting blade 301 is inserted into the groove 234.

[0037] When the cutter knife 30 cuts the sheet 200, the sheet presser 31 presses the sheet 200 toward the sheet support part 21 in front of the cutter knife 30 in the movement direction 25 of the cutter knife 30. The sheet presser 31 includes a presser part 32 and an erected part 33 erected from the end of the presser part 32 in the width direction.

[0038] The pressing portion 32 is formed in a rectangular shape with its longitudinal direction parallel to the movement direction 25 of the cutter knife 30, and is provided with a parallel portion 321 that is parallel to the upper surfaces 221, 231 of the support members 22, 23, i.e., the horizontal direction, and upward extending portions 322 that are connected to both ends of the parallel portion 321 in the movement direction 25 of the cutter knife 30 and gradually extend in a direction away from the upper surfaces 221, 231, i.e., upward, as they move away from the parallel portion 321.

[0039] The knife presser moving section 34 includes an attachment member 35 (shown in FIGS. 5, 6, and 7) and a knife presser moving unit 36 ​​(shown in FIG. 1). In the first embodiment, the attachment member 35 is formed in the shape of a plate extending in the vertical direction, with the cutter knife 30 attached to one surface 351 parallel to the vertical direction and the erected portion 33 of the sheet presser 31 attached to the other surface 352 parallel to the vertical direction. The attachment member 35 is disposed above the support members 22, 23, and the cutting blade 301 of the cutter knife 30 is inserted into the groove 234.

[0040] The knife presser moving unit 36 ​​moves the attachment member 35, i.e., the cutter knife 30 and the sheet presser 31, in a direction parallel to the axis of the roll 3 of the sheet roll 2 (i.e., horizontally) over the entire length of the support members 22, 23. When the attachment member 35 is positioned on the other end 233 of the second support member 23 by the knife presser moving unit 36, the cutter knife 30 and the sheet presser 31 are attached at a position where one upward extension 322 of the pressing portion 32 of the sheet presser 31 is closer to one end 222, 232 than the cutting blade 301 of the cutter knife 30, i.e., closer to the sheet 200 supported by the sheet support part 21.

[0041] Furthermore, when the mounting member 35 is positioned on the other end 233 of the second support member 23 by the knife presser moving unit 36, the mounting member 35 mounts the sheet presser 31 at a position that spaces one upward extension portion 322 of the pressing portion 32 of the sheet presser 31 from the first support member 22. Furthermore, when the mounting member 35 is moved by the knife presser moving unit 36 ​​in a direction parallel to the axis of the roll 3 of the sheet roll 2 (i.e., in the horizontal direction), the mounting member 35 mounts the sheet presser 31 at a position where the pressing portion 32 of the sheet presser 31 moves over the upper surface 221 of the first support member 22.

[0042] The sheet adhering section adheres the sheet 200, which has been drawn out from the sheet roll 2 by the drawing unit 10 and cut by the sheet cutting section 20, to the surface 204 side of the workpiece 201, i.e., the resin layer 212, on which a resin sheet 211 and a resin layer 212 are laminated in order on the surface 204. The sheet adhering section positions the workpiece 201, on which a resin sheet 211 and a resin layer 212 are laminated in order on the surface 204, and adheres the sheet 200, which has been transported by a transport unit (not shown), to the resin layer 212 on the workpiece 201.

[0043] The control unit 100 controls each of the above-mentioned components constituting the sheet adhering apparatus 1, and causes the sheet adhering apparatus 1 to perform the operation of adhering the sheet 200 to the workpiece 201. The control unit 100 is a computer that has an arithmetic processing device having a microprocessor such as a CPU (central processing unit), a storage device having memory such as a ROM (read only memory) or RAM (random access memory), and an input / output interface device, and is capable of executing computer programs.

[0044] The arithmetic processing unit of the control unit 100 executes on the RAM a computer program stored in the ROM to generate control signals for controlling the sheet sticking apparatus 1. The arithmetic processing unit of the control unit 100 outputs the generated control signals to each component of the sheet sticking apparatus 1 via the input / output interface device.

[0045] The control unit 100 is also connected to a display unit configured with a liquid crystal display device or the like that displays the status of the adhering operation, images, etc., and an input unit that the operator uses to register processing content information, etc. The input unit is configured with at least one of a touch panel provided on the display unit and a keyboard, etc.

[0046] Next, an example of the sheet sticking operation of the sheet sticking device 1 will be described. First, in the sheet sticking device 1, the control unit 100 controls the knife presser moving unit 36 ​​to position the attachment member 35, i.e., the cutter knife 30 and the sheet presser 31, on the other end 233 of the second support member 23, opens the first on-off valve 291, closes the second on-off valve 292, and fixes the sheet 200 by suction to the upper surface 221 of the first support member 22. The control unit 100 controls the support member moving unit 24 to temporarily raise the first support member 22, and then lower it until the upper surface 221 is positioned on the same plane as the upper surface 231 of the second support member 23. In the sheet sticking device 1, when the upper surface 221 of the first support member 22 is positioned on the same plane as the upper surface 231 of the second support member 23, the control unit 100 closes the first on-off valve 291, and then, as the first support member 22 rises, the sheet 200 is pulled out from the sheet roll 2 and placed on the upper surfaces 221, 231 of the support members 22, 23 of the sheet support section 21, covering the suction groove 26. In the sheet sticking device 1, the control unit 100 causes the gripping unit 11 to grip the leading end of the sheet 200.

[0047] In the sheet sticking device 1, the control unit 100 opens the on-off valves 291, 292, and the suction sources 281, 282 apply suction to the suction grooves 26 to suck and hold the sheet 200 on the upper surfaces 221, 231 of the support members 22, 23 of the sheet support section 21, thereby fixing the sheet 200 on the upper surfaces 221, 231 of the support members 22, 23 of the sheet support section 21. In the sheet sticking device 1, the control unit 100 controls the knife presser moving unit 36 ​​to move the attachment member 35, i.e., the cutter knife 30 and the sheet presser 31, toward one ends 222, 232 of the support members 22, 23 along the movement direction 25 of the cutter knife 30.

[0048] Then, one upward extending portion 322 of the pressing portion 32 of the sheet presser 31 moves over the widthwise edge of the sheet 200, and the parallel portion 262 of the pressing portion 32 of the sheet presser 31 is positioned on the sheet 200, pressing the sheet 200 toward the upper surface 231 of the second support member 23 of the support members 22, 23. Thereafter, the cutting blade 301 of the cutter knife 30 cuts into the widthwise edge of the sheet 200. As the attachment member 35, i.e., the cutter knife 30 and the sheet presser 31, moves toward the one ends 222, 232 of the support members 22, 23, the sheet presser 31 presses the sheet 200 toward the upper surface 231 of the second support member 23 of the sheet support member 21, while the cutter knife 30 cuts the sheet 200 along the widthwise direction of the sheet 200.

[0049] In the sheet sticking device 1, when the cutter knife 30 cuts the sheet 200 over the entire width direction, the control unit 100 controls the knife presser moving unit 36 ​​to move the attachment member 35, i.e., the cutter knife 30 and the sheet presser 31, toward the other ends 223, 233 of the support members 22, 23, and position the attachment member 35, i.e., the cutter knife 30 and the sheet presser 31, on the other end 233 of the second support member 23. In the sheet sticking device 1, the control unit 100 closes the second on-off valve 292 and controls the conveying unit (not shown) to convey the sheet 200 cut from the sheet 200 wound around the sheet roll 2 toward the sheet sticking unit, and controls the sheet sticking unit to stick the sheet 200 to the resin layer 212 on the surface 204 of the workpiece 201.

[0050] Furthermore, in the sheet sticking device 1, after the sheet 200 cut from the sheet 200 wound around the sheet roll 2 is conveyed, the control unit 100 opens the first on-off valve 291 to suction-hold and fix the sheet 200 to the upper surface 221 of the first support member 22, and then controls the support member moving unit 24 to temporarily raise the first support member 22 and then lower it until the upper surface 221 is positioned flush with the upper surface 231 of the second support member 23. As the first support member 22 rises, the sheet 200 is pulled out from the sheet roll 2. When the upper surface 221 of the first support member 22 is positioned flush with the upper surface 231 of the second support member 23, the control unit 100 closes the first on-off valve 291, and the sticking operation of the sheet 200 is completed.

[0051] In the sheet sticking device 1 according to the first embodiment described above, the cutting blade 301 of the cutter knife 30 cuts into the sheet 200 after the sheet presser 31 presses the sheet 200 toward the upper surface 231 of the second support member 23 of the sheet support section 21, thereby reliably preventing the sheet 200 from twisting and making it easier to cut the sheet even with a cutter knife 30 whose sharpness has diminished. As a result, the sheet sticking device 1 reliably cuts the sheet 200.

[0052] Furthermore, the sheet sticking device 1 secures the sheet 200 by suction and holding it on the upper surfaces 221, 231 of the support members 22, 23 of the sheet support section 21, so that the sheet 200 can be sandwiched between the sheet presser 31 and the sheet support section 21 and reliably secured.

[0053] Furthermore, in the sheet application device 1, the suction grooves 26 provided on the upper surfaces 221, 231 of the support members 22, 23 of the sheet support section 21 are provided with an orthogonal section 261 and an intersection section 263 that intersect with the movement direction of the cutter knife 30, thereby making it even more difficult for the sheet 200 to twist when the cutting blade 301 of the cutter knife 30 cuts into the sheet 200.

[0054] [Modification] A sheet sticking device according to a modified example of the first embodiment of the present invention will be described with reference to the drawings. Fig. 9 is a plan view of the suction grooves of the sheet cutting section of the sheet sticking device according to the first modified example of the first embodiment. Fig. 10 is a plan view of the suction grooves of the sheet cutting section of the sheet sticking device according to the second modified example of the first embodiment. In Figs. 9 and 10, the same parts as those in the first embodiment are designated by the same reference numerals, and their description will be omitted.

[0055] Furthermore, the sheet sticking devices 1 according to Modifications 1 and 2 of Embodiment 1 are the same as those of Embodiment 1, except that the planar shapes of the suction grooves 26-1 and 26-2 are different. As shown in Fig. 9, the suction groove 26-1 of the sheet sticking device 1 according to Modification 1 has only one parallel portion 262, and the centers of the orthogonal portions 261 are connected to both ends of the parallel portion 262.

[0056] As shown in Figure 10, the suction groove 26-2 of the sheet application device 1 of variant example 2 has three parallel portions 262 spaced apart, and these three parallel portions 262 are connected to orthogonal portions 261, and two orthogonal portions 261 are spaced apart.

[0057] As in embodiment 1, the sheet application device 1 of variants 1 and 2 has the effect that, after the sheet holder 31 presses the sheet 200 toward the upper surface 231 of the second support member 23 of the sheet support section 21, the cutting blade 301 of the cutter knife 30 cuts into the sheet 200, thereby preventing the sheet 200 from twisting and ensuring that the sheet 200 can be cut reliably.

[0058] Furthermore, the sheet application device 1 according to the first and second variants has an orthogonal portion 261 where the suction grooves 26-1, 26-2 intersect with the movement direction of the cutter knife 30, which makes it even more difficult for the sheet 200 to twist when the cutting blade 301 of the cutter knife 30 cuts into the sheet 200.

[0059] The present invention is not limited to the above-described embodiment. That is, various modifications can be made without departing from the gist of the present invention. In the present invention, the sheet 200 may further include an adhesive layer having adhesive force. Furthermore, in the present invention, the workpiece 201 to which the sheet 200 is attached is not limited to one having a resin sheet 211 and a resin layer 212 laminated in this order on the surface 204. [Explanation of symbols]

[0060] 1 Sheet attachment device 2 sheet rolls 10 Drawer Unit 20 Sheet cutting section 21 Seat support 25 Direction of movement 26 Suction groove 30. Cutter knife 31 Sheet holder 200 sheets 201 Workpiece

Claims

1. A sheet application device that pulls out a sheet from a sheet roll and applies the sheet to a workpiece, a drawer unit that draws the sheet from the sheet roll; a sheet cutting unit that cuts the drawn sheet, The sheet cutting section includes: a seat support portion that supports the pulled-out seat from below; a cutter knife that cuts the sheet supported by the sheet support portion along the sheet support portion; a sheet presser that presses the sheet toward the sheet support portion in front of the movement direction of the cutter knife when cutting the sheet; a knife presser moving unit that moves the cutter knife and the sheet presser in a direction parallel to the axis of the sheet roll over the entire length of the sheet support section, The sheet presser has a parallel portion parallel to the upper surface of the sheet support portion, and an upward extending portion connected to both ends of the parallel portion in the direction of movement of the cutter knife and extending in a direction away from the upper surface as it moves away from the parallel portion, and the upward extending portion is positioned forward of the cutter knife in the direction of movement of the sheet pasting device.

2. A sheet pasting device as described in claim 1, in which the cutter knife is attached to one surface away from the sheet roll, the sheet holder is attached to the other surface closer to the sheet roll, and the device is provided with an attachment member that is moved in the parallel direction by the knife holder moving unit.

3. 3. The sheet sticking device according to claim 1, wherein the sheet support portion has a suction groove for suction-holding the placed sheet, the suction groove extending in a direction intersecting the moving direction of the cutter knife.

Images