JP5751701B2 - Sheet feeder device - Google Patents

Description

  The present invention relates to a sheet feeder apparatus that holds and feeds a sheet wound in a roll shape.

  In the wafer making process, a cylindrical ingot such as silicon is sliced with a wire saw to form a substrate-like wafer (work). On both sides of the cut workpiece, undulation and warping occur during slicing, but a liquid resin is applied on one side to form a flat surface. Then, a resin sheet for facilitating the handling of the workpiece is affixed to the flat surface coated with the liquid resin, and the surface on the back side of the sheet surface is ground by using this sheet surface as a reference. It is formed in a thin plate shape.

  As an apparatus for supplying a sheet to a bonding apparatus that applies a resin to one side of a workpiece, an apparatus having a configuration for conveying a sheet wound in a roll shape in one direction is known (for example, see Patent Document 1). . In the apparatus described in Patent Document 1, a roll-shaped sheet is attached to a driven rotary shaft positioned upstream in the sheet conveyance direction, and the front end of the sheet pulled out from the roll is positioned downstream in the conveyance direction. It is wound around the rotating shaft. And the sheet | seat is conveyed by the sticking apparatus because the rotating shaft of a motor is rotationally driven.

JP 2009-148866 A

  In the apparatus described in Patent Document 1, in order to prevent sheet looseness during conveyance, a force is applied in a direction opposite to the direction in which the sheet is pulled out with respect to the driven rotation shaft to which the roll-shaped sheet is attached. Therefore, it is necessary to apply a braking force to the driven rotary shaft to apply tension to the seat. However, in order to apply an appropriate tension to the sheet, it is necessary to securely fix the roll sheet to the rotating shaft. When the roll sheet cannot be fixed securely, it is necessary not to operate the apparatus.

  The present invention has been considered in view of such a problem, and applies tension to the drawn sheet and prevents the apparatus from operating when an appropriate tension is not applied to the sheet. Let it be an issue.

The present invention relates to a roll sheet holding unit that rotatably supports a roll sheet with the longitudinal direction of the cylinder of the roll sheet formed by winding the sheet around the cylinder as a rotation axis, and the roll sheet held by the roll sheet holding unit This relates to a sheet feeder apparatus having a sheet drawing portion for pulling out a sheet from the sheet and a sheet tension applying portion for applying tension to the drawn sheet. The roll sheet holding portion enters the inside of the roll sheet tube and holds the tube. A cylindrical support cylinder, a support part that rotatably supports one end of the support cylinder in a cantilevered state, and a penetration that is formed in at least two locations on the support cylinder and passes between the outer peripheral surface and the inner peripheral surface A force is transmitted from the hole, a roll sheet fixing portion that moves forward and backward from the through hole to act on the inner peripheral surface of the cylinder of the roll sheet and fixes the cylinder, and a force point of the roll sheet fixing section A retractable shaft which is inserted into the support tube includes an over path section, operative position to act and the end plate connected to the tip of the advancing direction of the tip end shaft, the tapered portion is advanced forward and backward axis force point of the roll sheet fixed portion The air piston positioned at the position and the holding detection sensor that detects whether the advancing / retreating shaft is at the operating position or the retracted position, and whether the end plate protrudes from the end surface of the support cylinder when the advancing / retreating axis is positioned at the operating position. Alternatively, the sheet pull-out portion is flush with the end surface of the support cylinder, and the sheet pull-out portion can be operated when the advancing / retreating shaft is positioned at the operating position by a signal from the holding detection sensor.

In the present invention, the roll sheet fixing portion fixes the roll sheet when the advance / retreat shaft advances to the working position in the support cylinder, and the sheet pulling portion operates when the holding detection sensor detects that the advance / retreat shaft has advanced to the action position. Therefore, the sheet is not pulled out in a state where the roll sheet is not fixed, and the apparatus can be operated only in a state where the roll sheet is fixed, and the sheet can be sent out by applying tension to the sheet. In addition, when the tip shaft is positioned at the operating position, the end plate connected to the tip portion in the forward direction of the tip shaft protrudes from the end surface of the support tube or is flush with the end surface of the support tube. By confirming this, the operator can confirm that the roll sheet is fixed to the roll sheet holding portion, and the operator can release the fixed state of the roll sheet by pressing the end plate. It is possible to suppress the unlocking of the roll sheet which is not intended by the operator.

It is a perspective view which shows an example of a sheet feeder apparatus. It is the schematic diagram which represented the sheet feeder apparatus from the side surface side. It is an enlarged view which shows a 1st, 2nd air blow part. It is sectional drawing which shows schematically the structure of a roll sheet fixing | fixed part. It is sectional drawing which shows schematically the state which a roll sheet fixing | fixed part acts on the inner periphery of the cylinder of a roll sheet. It is sectional drawing which shows schematically the state which the roll sheet fixing | fixed part acted and fixed to the inner periphery of the cylinder of a roll sheet. It is the schematic diagram showing the preparation stage of the process which pulls out a sheet | seat from the side surface side. It is the schematic diagram showing the process which pulls out a sheet | seat from the side surface side.

  A sheet feeder apparatus 1 shown in FIG. 1 is an apparatus that is arranged in a preceding stage of a sheet sticking apparatus (not shown) that sticks a sheet to a workpiece and sends out the sheet to the sheet sticking apparatus. The sheet feeder apparatus 1 includes a roll sheet holding unit 2 that holds a roll sheet 10 that is formed by winding a sheet 100 to be fed around a cylinder 101, and a sheet 100 from the roll sheet 10 that is held by the roll sheet holding unit 2. And a sheet tension applying unit 4 that applies tension to the pulled out sheet 100. The sheet drawing unit 3 and the sheet tension applying unit 4 are controlled by the control unit 27. The sheet 100 is made of, for example, a film made of polyethylene terephthalate, and the cylinder 101 is made of, for example, polyethylene, polypropylene, ABS resin, paper, or the like.

  The roll sheet holding unit 2 includes a support cylinder 20 formed in a cylindrical shape and a support part 21 that supports one end of the support cylinder 20 in a cantilevered manner so that the end of the cylinder 101 can be rotated. The roll sheet 10 is rotatably supported as an axis. The outer diameter of the support cylinder 20 is smaller than the inner diameter of the cylinder 101 constituting the roll sheet 10, and the support cylinder 20 can enter the inner peripheral side of the cylinder 101 and hold the cylinder 101. The support portion 21 includes a standing wall portion 210 and an enclosure portion 211 that supports one side of the support tube 20.

  The support cylinder 20 is formed with a plurality of through holes 200 penetrating the inner peripheral surface and the outer peripheral surface. The through holes 200 are formed in at least two places. From the through hole 200, a roll sheet fixing portion 24 for fixing the cylinder 101 of the roll sheet 10 can be projected and retracted.

  The sheet tension applying unit 4 includes a pulley 40 connected to the support cylinder 20 of the roll sheet holding unit 2, a belt 41 wound around the pulley 40, and a motor 42 that drives the belt 41. By driving 41 in the direction of arrow A in FIG. 1, a rotational force in the direction of arrow B can be applied to the support cylinder 20, thereby applying tension to the sheet 100.

  As shown in FIG. 2, the sheet pull-out unit 3 includes a grip unit 30 that grips the front end of the sheet 100 and a pull-out drive unit 31 that moves the grip unit 30 in the sheet pull-out direction. The pull-out drive unit 31 includes a support base 310 that is inclined with respect to a horizontal plane, a guide rail 311 that extends in the sheet pull-out direction on the support base 310, and a slider 312 that can slide on the guide rail 311. . The slider 312 can be slid on the guide rail by being driven by a motor and a ball screw (not shown).

  A base plate 300 is attached to the upper surface of the slider 312. The fixed plate 301 rises from one end of the base plate 300, its upper end portion is bent rearward (on the roll sheet holding portion 2 side), and its distal end portion 302 is bent downward. The base plate 300 is fixed with a drive unit 304 for moving the rod 303 back and forth. The rod 303 is fixed with a movable plate 305 that approaches and separates from the tip end 302 of the fixed plate 301 by the back and forth movement of the rod 303. Has been. In the grip portion 30 configured as described above, the driving portion 304 raises the rod 303, whereby the end portion of the sheet can be sandwiched between the leading end portion 302 of the fixed plate 301 and the movable plate 305. By lowering the rod 303 from this state, it is possible to release the sheet clamping state between the front end portion 302 and the movable plate 305.

  In addition, the sheet pull-out unit 3 moves to the downstream side in the movement direction with the end of the sheet sandwiched between the leading end 302 and the movable plate 305, whereby the sheet 100 is pulled out from the roll sheet 10. .

  A first roller 50 and a second roller 51 for guiding the movement of the sheet 100 are disposed downstream of the roll sheet holding unit 2 in the movement direction of the sheet 100.

  A first air blow unit 52 and a second air blow unit 53 are disposed between the first roller 50 and the second roller 51 in the moving path of the sheet 100. The first air blowing unit 52 blows air against the surface of the sheet 100 to remove foreign matters on the surface side of the sheet 100. On the other hand, the second air blowing unit 53 blows air against the back surface of the sheet 100 to remove foreign matters on the back surface side of the sheet 100.

  As shown in FIG. 3, the first and second air blow parts 52, 53 have a block 54 in which a blowing-side channel 540 and a suction-side channel 541 are formed. The outlet 540a of the flow path 540 has an inner diameter that is sharply narrowed compared to the upstream side of the air flow, thereby increasing the flow rate of the gas blown to the sheet 100. The gap of the outlet 540a of the flow path 540 is preferably 50 to 500 [μm], and more preferably 50 to 200 [μm]. In the present embodiment, the gap between the outlets 540a is set to 100 [μm].

  The block 54 is disposed close to the sheet 100. The gap between the block 54 and the sheet 100 when not blown is preferably 0 to 100 [μm], and more preferably 0 to 50 [μm]. In the present embodiment, the gap between the block 54 and the sheet 100 when not blown is set to 0 [μm]. Even when the gap between the block 54 and the sheet 100 is set to 0 [μm], a constant gap is formed between the block 54 and the sheet 100 due to the tension of the sheet 100 and the amount of blown air by blowing, It is possible to remove foreign matters of about several tens [μm].

  The first and second air blow units 52 and 53 send air into the blowing-side flow path 540 and suck air from the suction-side flow path 541 to generate an air flow in the direction of arrow C. The air blown out from the flow channel 540 on the blowing side is discharged through the flow channel 541 on the suction side while taking in foreign matter in the gap between the block 54 and the sheet 100. In this manner, both surfaces of the sheet 100 are cleaned by the first and second air blow units 52 and 53.

  As shown in FIG. 2, a clamping portion 55 is disposed on the downstream side of the second roller 51. The clamping unit 55 operates so as to sandwich the sheet 100 from above and below by the upper plate 550 and the lower plate 551. The upper plate 550 is formed of a plate material having a horizontal plane, and is attached to a rod 553 that is driven by a driving unit 552 positioned above the seat 100. The lower plate 551 is formed of a plate material having a horizontal plane, and is attached to a rod 555 that is driven by a driving unit 554 positioned below the seat 100. The upper plate 550 and the lower plate 551 are configured to move up and down by driving the rods 554 and 555, respectively. The upper plate 550 and the lower plate 551 move to appropriate heights when the sheet 100 is pulled out and cut.

  A cut portion 56 is disposed on the downstream side in the movement direction of the sheet 100 from the sandwiching portion 55. The cutting unit 56 includes a cutter 560 that cuts the sheet 100, a holding unit 561 that sucks and holds the back surface of the sheet 100, and a cutter moving unit 562 that moves the cutter 560 in the width direction orthogonal to the moving direction of the sheet 100. have. The cutter 560 and the holding unit 561 are arranged so as to face each other in the vertical direction across the moving path of the sheet 100.

  The holding unit 561 has a holding surface 561 a that holds the back surface of the sheet 100 by suction. The holding surface 561a is formed horizontally and is substantially flush with the upper surface of the lower plate 551 of the sandwiching portion 55. In the holding surface 561a, a clearance groove 561b that allows the cutting edge of the cutter 560 to escape is formed along the extending direction of the holding portion 561. A plurality of suction portions 561c are formed along the escape groove 561b on both sides of the holding surface 561a with the escape groove 561b interposed therebetween. The plurality of suction portions 561c are connected to an air suction source and a supply source via a flow path (not shown).

  In the cut part 56, the drawn sheet 100 is attracted to the holding surface 561a by suction in the plurality of suction parts 561c, and the cutting edge of the cutter 560 is slid along the escape groove 561b by driving by the cutter moving part 562. The sheet 100 is cut. In addition, when the sheet is pulled out, the cut portion 56 avoids contact between the sheet 100 and the holding surface 561a by blowing air from the plurality of suction portions 561c. By blowing the air, rubbing between the sheet 100 and the holding surface 561a when the sheet 100 is pulled out is prevented.

  As shown in FIG. 4, a switching mechanism 22 that can switch between a fixed state and an unfixed state of the roll sheet 10 in the roll sheet holding unit 2 is inserted into the cylindrical support tube 20.

  The switching mechanism 22 includes an advance / retreat shaft 220 inserted into the support cylinder 20 and extending in the axial direction thereof, and advance / retreat shaft guide portions 221a, 221b for guiding the advance / retreat of the advance / retreat shaft 220 in the axial direction. The advancing / retracting shaft 220 is formed with a large diameter portion 220a and a small diameter portion 220b having a smaller diameter than the large diameter portion 220a.

  The advancing / retreating shaft guide portion 221a supports the front end portion of the advancing / retreating shaft 220 in the forward direction (the direction of arrow D1 in FIG. 4), and the advancing / retreating shaft guide portion 221b Supports the vicinity of the club.

  An end plate 22a is connected to the forward end portion of the advance / retreat shaft 220 in the forward direction. The end plate 22a can project to the outside of the support cylinder 20 as the advance / retreat shaft 220 advances in the direction of the arrow D1.

  The forward / backward shaft 220 is formed with a tapered portion 222 that decreases in diameter in the direction of the arrow D1, which is the forward direction. The tapered portion 222 is formed at a position between the advance / retreat axis guide portion 221a and the advance / retreat axis guide portion 221b.

  Two or more roll sheet fixing portions 24 are disposed in a space between the outer peripheral side of the advance / retreat shaft 220 and the inner peripheral side of the support tube 20. 4, 5, and 6, only one roll sheet fixing portion 24 is illustrated.

  The roll sheet fixing part 24 is formed in a claw shape and is supported by a fulcrum part 240 so as to be rotatable. In addition, the roll sheet fixing portion 24 includes a locking portion 241 that is locked by a step portion between the large diameter portion 220a and the small diameter portion 220b of the advance / retreat shaft 220.

  The roll sheet fixing part 24 supports the roller 25 so that it can roll. Further, the roll sheet fixing portion 24 is provided with a force point portion 242 that makes the roller 25 rollable and contacts the roller 25.

  The outer peripheral surface of the roller 25 is in contact with the taper portion 222. When the roller 25 rotates in the radial direction (vertical direction in FIG. 4) while rotating in accordance with the advancement of the advance / retreat shaft 220 in the arrow D1 direction, Accordingly, the roller 25 pushes the force point portion 242 in the radial direction, and the roll sheet fixing portion 24 is rotated in the same direction as the moving direction of the roller 25 with the fulcrum portion 240 as a fulcrum by the force.

  Then, when the roll sheet fixing portion 24 is rotated, the upper part thereof is inserted into the through hole 200 formed in the support cylinder 20 and contacts the cylinder 101 of the roll sheet 10 to fix the cylinder 101. As described above, in the roll sheet fixing portion 24, the upper portion that comes into contact with the cylinder 101 when the force point portion 242 is pressed by the roller 25 is the action point portion 243. Thus, the action point portion 243 can advance and retract through the through hole 200.

  The base of the advance / retreat shaft 220 is connected to the air piston 260. The air piston 260 is driven by the air cylinder 261 and is movable in the direction of the arrow D1 or D2 in FIG. A compressed air supply unit 262 is connected to the air cylinder 261. When air is introduced into the compressed air supply unit 262, the air piston 260 moves in the direction of the arrow D1, and the advance / retreat shaft 220 is also moved in the direction of the arrow D1. It is configured to advance in the direction.

  As shown in FIG. 1, the support portion 21 constituting the roll sheet holding portion 2 includes a holding detection plate 212 through which a compressed air supply portion 262 passes. As shown in FIG. 4, the holding detection plate 212 is connected to the advance / retreat shaft 220, and the hold detection plate 212 moves in the same direction as the advance / retreat shaft 220 moves.

  A holding detection sensor 28 is disposed above the holding detection plate 212. The holding detection sensor 28 is configured by, for example, an optical sensor and is connected to the control unit 27, and notifies the control unit 27 of information regarding whether or not to detect the presence of the holding detection plate 212. Can do. The holding detection sensor 28 is disposed at a position shifted in the D1 direction from immediately above the holding detection plate 212 in a state in which the advance / retreat shaft 220 is retracted in the D2 direction, and is held when the advance / retreat shaft 220 advances in the D1 direction. The detection plate 212 is configured to move below the holding detection sensor 28.

  In the sheet feeder apparatus 1 configured as described above, first, the cylinder 101 of the roll sheet 10 is inserted into the support cylinder 20 as shown in FIG. Then, the front end portion of the sheet 100 is grasped by the grasping portion 30 of the sheet drawing portion 3. At this time, as shown in FIG. 4, the advance / retreat shaft 220 is moved backward and is located closest to the arrow D <b> 2, and the locking portion 241 is a step portion between the large diameter portion 220 a and the small diameter portion 220 b of the advance / retreat shaft 220. It is locked to. The position of the advance / retreat shaft 220 at this time is referred to as a retracted position. At this time, the roller 25 is positioned at the most downstream portion of the tapered portion 222, and the end plate 22 a is accommodated inside the support cylinder 20. In a state where the advance / retreat shaft 220 is in the retracted position, the holding detection plate 212 is on the D2 direction side with respect to the holding detection sensor 28 and is in a position not detected by the holding detection sensor 28.

  When the cylinder 101 of the roll sheet 10 is inserted into the support cylinder 20, next, as shown in FIG. 5, the air cylinder 261 drives the air piston 260 by introducing air from the compressed air supply unit 262, and the air The piston 260 advances the advance / retreat shaft 220 in the direction of the arrow D1. Then, the movement of the taper portion 222 in the direction D1 causes the roller 25 to rotate and is pushed along the taper portion 222 toward the outer side in the radial direction of the advance / retreat shaft 220, and the roller 25 pushes the force point portion 241. The roll sheet fixing part 24 rotates in the direction of arrow E around the fulcrum part 240. By this rotation, the action point portion 243 enters the through hole 200. As described above, the tapered portion 222 plays a role of transmitting force to the force point 241 of the roll sheet fixing portion 24.

  When the action point portion 243 enters the through hole 200 and protrudes to the outside of the through hole 200 in this way, the action point portion 243 acts on the inner peripheral surface of the tube 101 and the roll sheet fixing portion 24 fixes the tube 101. The position of the advancing / retreating shaft 220 at this time is an operating position at which the tapered portion 222 acts on the force point portion 242 of the roll sheet fixing portion 24.

  At this time, since the end plate 22a protrudes from the support cylinder 20 or is flush with the end surface 20a of the support cylinder 20, the operator confirms this, so that the roll sheet 10 becomes the roll sheet support portion 2. Can be confirmed. Thus, the termination plate 22a functions as a holding visual confirmation plate.

  As shown in FIG. 5, when the advance / retreat shaft 220 advances in the direction D <b> 1 and is positioned at the operating position, the holding detection plate 212 is positioned below the holding detection sensor 28. Then, the holding detection sensor 28 notifies the control unit 27 of a signal indicating that the holding detection plate 212 has been detected. When the control unit 27 receives a signal indicating that the holding detection plate 212 has been detected, the control unit 27 determines that the sheet feeder device 1 can be properly operated, and the sheet pulling unit 3 illustrated in FIGS. The sheet tension applying unit 4 can be operated.

  When the advancing / retracting shaft 220 is further advanced in the direction of the arrow D1 from the state shown in FIG. 5, the roller 25 is positioned in the upstream portion of the tapered portion 222 as shown in FIG. Further protrudes outside the 200. If it does so, the action point part 243 will act strongly on the internal peripheral surface 101a of the cylinder 101, and the roll sheet fixing part 24 will fix the cylinder 101 firmly.

  As shown in FIG. 6, when the end plate 22 a is pushed into the support cylinder 20 by the operator from the state in which the end plate 22 a protrudes from the support cylinder 20, the advancing / retracting shaft 220 is retracted in the direction of the arrow D <b> 2. As shown in FIG. 4, when the advance / retreat shaft 220 is positioned at the retracted position and the holding detection plate 212 moves backward in the direction of the arrow D2 with respect to the holding detection sensor 28, the action portion 243 of the roll sheet holding portion 24 is No longer acting on 101, the fixed state is released. The holding detection sensor 28 that has detected this notifies the control unit 27 of the information, and the control unit 27 stops pulling out the sheet 100 by the sheet pulling unit 3 and tension on the sheet 100 by the sheet tension applying unit 4. Stop giving.

  Thus, the holding detection sensor 28 detects whether the roll sheet 10 is fixed by the roll sheet fixing unit 24 according to the position of the holding detection plate 212, and the control unit 27 determines whether the roll sheet 10 is fixed by the roll sheet fixing unit 24. In order to control the sheet drawing unit 3 and the sheet tension applying unit 4, the sheet 100 can be tensioned only when the roll sheet 10 is fixed to the roll sheet holding unit 2 by the roll sheet fixing unit 24. When the roll sheet 10 is not fixed by the roll sheet fixing unit 24, the operation of the sheet feeder device 1 can be stopped. Therefore, the sheet 100 is not pulled out in a state where the roll sheet 10 is not fixed, and the apparatus can be operated only in a state where the roll sheet 10 is fixed, and the sheet 100 can be sent out under tension.

  Moreover, the release state of the roll sheet 10 fixed by the roll sheet fixing portion 24 can be performed by the operator pressing the end plate 22a, and unlocking of the roll sheet 10 unintended by the operator can be suppressed.

  In a state where the roll sheet 10 is fixed to the roll sheet holding unit 2 by the roll sheet fixing unit 24, the sheet pulling unit 3 pulls out the sheet 100 while applying an appropriate tension to the sheet 100 by the sheet tension applying unit 4. The sheet 100 can be cut by the cutter 560. Hereinafter, the drawing and cutting operations of the sheet 100 will be described.

  As shown in FIG. 7A, the sheet 100 pulled out by the sheet pull-out portion 3 is sandwiched between the upper plate 550 and the lower plate 551 at the lower position 570. In this case, the front end of the sheet 100 is located on the holding surface 561 a of the holding part 561 of the cut part 56. In addition, the grip portion 30 stands by ahead of the front position 580 in a state where the tip portion 302 and the movable plate 305 are separated from each other. At this time, the height of the grip portion 30 is adjusted to a height at which the front end of the sheet 100 can be gripped at the lower position 570.

  Next, as shown in FIG. 7B, in a state where the sheet 100 is sandwiched between the upper plate 550 and the lower plate 551, the sandwiching portion 55 moves in the direction of the arrow F1 toward the upper position 571. As a result, the front end of the sheet 100 moves above the holding surface 561a.

  Then, as illustrated in FIG. 7C, the grip portion 30 moves obliquely upward (in the direction of arrow F <b> 2) toward the rear position 581. Then, the front end of the sheet 100 is positioned between the front end portion 302 and the movable plate 305.

  Next, as shown in FIG. 8A, the movable plate 305 moves up in the direction of arrow F3 to approach the leading end 302 of the fixed plate 301. The leading end 301 and the movable plate 305 cause the front end of the sheet 100 to move. Grasped. Thus, at the rear position 581, the height of the grip portion 30 is adjusted to a height at which the sheet 100 can be gripped at the upper position 571.

  Next, as shown in FIG. 8B, the lower plate 551 moves toward the lower position 570 in the direction of the arrow F <b> 4, so that the nipping of the sheet 100 is released and the grip portion 30 is moved to the front position 580. The sheet 100 is pulled out by moving diagonally downward (in the direction of arrow F5). At this time, the gripper 30 moves while changing the height of the gripping position of the sheet 100 from the upper position 571 to the lower position 570. Further, when the sheet 100 is pulled out, air is blown to the sheet 100 from a plurality of suction ports 561c formed in the holding surface 561a. By blowing this air, rubbing between the sheet 100 and the holding surface 561a when the sheet 100 is pulled out is prevented.

  Next, as shown in FIG. 8C, when the drawing of the sheet 100 is completed, the sheet 100 is attracted to the holding surface 561a by the plurality of suction ports 561c, and the sheet conveying unit 59 is connected to the holding unit 30 and the holding surface 561a. The sheet 100 pulled out during this period is held from above. Then, in a state where the sheet 100 is held by the sheet conveying unit 59, the cutter 560 slides along the escape groove 561 b formed on the holding surface 561 a, and the sheet 100 extends in the width direction orthogonal to the conveying direction of the sheet 100. Disconnect. Since the plurality of suction ports 561c formed on both sides of the escape groove 561b along the escape groove 561b perform the cutting while holding the sheet 100, stable cutting is possible.

  When the sheet 100 is cut in this way, the gripping of the sheet 100 by the gripping unit 30 is released, and the sheet transporting unit 59 transports the sheet 100 to a sheet pasting device (not shown). At this time, the upper plate 550 moves to the lower position 570 so that the sheet 100 is sandwiched, and the state returns to the state shown in FIG.

  Thus, the sheet | seat 100 is pulled out, changing height, as the holding part 30 moves diagonally forward. Therefore, it is only necessary to move the gripping part 30 in one oblique direction, and the sheet 100 can be pulled out with a cheap and simple structure as compared with the structure in which the gripping part 30 is moved in the front and rear direction and the two axial directions. .

DESCRIPTION OF SYMBOLS 10: Roll sheet 100: Sheet 101: Tube | sheet 1: Sheet feeder apparatus 2: Roll sheet holding | maintenance part 20: Support cylinder 200: Through-hole 21: Support part 210: Wall part 211: Enclosing part 212: Holding detection plate 22: Switching mechanism 220: advance / retreat shaft 220a: large diameter portion 220b: small diameter portion 221a, 221b: advance / retreat shaft guide portion 22a: end plate 222: taper portion 24: roll sheet fixing portion 240: fulcrum portion 241: locking portion 242: force point portion 243: Action point section 25: roller 260: air piston 261: air cylinder 262: compressed air supply section 27: control section 28: holding detection sensor 3: sheet pulling section 30: gripping section 300: base plate 301: fixed plate 302: tip section 303 : Rod 304: Drive unit 305: Movable plate 31: Drawer drive unit 31 : Support base 311: guide rail 312: slider 4: sheet tension applying unit 40: pulley 41: belt 42: motor 50: first roller 51: second roller 52: first air blow unit 53: second air blow unit 54 : Block 540, 541: Flow path 540a: Ejection port 55: Holding part 550: Upper plate 551: Lower plate 552: Drive part 553: Rod 554: Drive part 555: Rod 56: Cut part 560: Cutter 561: Holding Part 561a: Holding surface 561b: Escape groove 561c: Suction part 562: Cutter moving part 59: Sheet conveying part

Claims (1)

A roll sheet holding unit that rotatably supports the roll sheet with the longitudinal direction of the cylinder of the roll sheet configured by winding the sheet around the cylinder as a rotation axis;
A sheet drawing portion for pulling out a sheet from the roll sheet held by the roll sheet holding portion;
A sheet tension applying unit that applies tension to the drawn sheet;
A sheet feeder device comprising:
The roll sheet holding part is
A cylindrical support tube that enters the tube of the roll sheet and holds the tube;
A support part that supports one end of the support cylinder in a cantilevered manner so as to be rotatable;
A through-hole formed in at least two places in the support cylinder and penetrating between the outer peripheral surface and the inner peripheral surface;
A roll sheet fixing part for fixing the cylinder by acting on the inner peripheral surface of the cylinder of the roll sheet as the operating point advances and retreats from the through hole;
A taper portion that transmits force to the force point of the roll sheet fixing portion,
An end plate coupled to the forward end portion of the front end shaft;
An air piston for advancing the advancing and retreating shaft and positioning the tapered portion at an action position that acts on a force point of the roll sheet fixing portion;
A holding detection sensor for detecting whether the advance / retreat axis is in the operating position or the retracted position;
Consisting of
The end plate protrudes from the end surface of the support tube or is flush with the end surface of the support tube when the advancing and retracting shaft is positioned at the working position;
A sheet feeder device in which the sheet drawer is operable when the advancing / retreating axis is positioned at the operating position by a signal from the holding detection sensor.

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