JP2013212554A - Sheet processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet processing device capable of making sheet wrinkles more difficult to be generated.SOLUTION: A sheet processing device includes a sheet roll 9 having a sheet wound on a first cylinder, a roll base 10 for rotatably supporting the first cylinder, a porous member 6 having a plurality of through-holes, a chamber 2 having the porous member on its surface, a vacuum pump 5 for discharging gas from the chamber, a first conveyance part for winding out the sheet from the sheet roll while moving the roll base and the porous member relatively to each other to spread the sheet on the porous member, shutters 11, 12 and 13 synchronized with the relative movement of the roll base and the porous member to cover the through-holes of a region not in contact with the sheet, a processing part for processing the sheet held on the porous member, and a second conveyance part 4b for conveying the processing part. The sheet 7 is spread on the porous member 6 having the plurality of through-holes 6a to be sucked and fixed. Thus, wrinkles are more difficult to be generated on the sheet.

Description

  The present invention relates to a sheet processing apparatus that pulls out a sheet from a roll in which the sheet is wound around a cylinder.

Patent Document 1 discloses an apparatus having a suction cup whose cutting table is made of a porous material.
Patent Document 2 discloses an apparatus that includes an adsorbing roll and a roll cutter, the inside of the adsorbing roll is connected to a vacuum system, and includes a large number of intake holes on a cylindrical surface.

JP 2010-232654 A JP-A-9-64393

In Patent Document 1, if the sheet to be adsorbed has waviness or shrinkage, there is a problem that wrinkles are generated when the sheet is sucked and fixed.
In Patent Document 2, since air flows from the suction hole of the suction roll during a period when the suction roll is not attached, there is a problem that the power consumption of the vacuum pump increases.

  In order to solve the above-described problems, the present invention has an object to provide a sheet processing apparatus that makes it difficult to wrinkle a sheet by spreading and fixing the sheet on a top plate having a plurality of through holes. And

  In order to solve the above-described problems, an embodiment of the present invention includes a sheet roll in which a sheet is wound around a first cylinder, a roll base that rotatably holds the first cylinder, and a porous member that includes a plurality of through holes. The sheet is unwound from the sheet roll while the chamber having the porous member on the wall surface, the vacuum pump for discharging the gas in the chamber, and the roll base and the porous member are moved relative to each other. A first conveying section that spreads the sheet on the porous member; a shutter section that closes the through hole in a region that is not in contact with the sheet in synchronization with the relative movement of the roll base and the porous member; A processing unit that processes the sheet held on the porous member, a second transport unit that transports the processing unit, and a control unit.

  According to such a configuration, a part of the sheet is first sucked and fixed on the porous member, and then the roll base is moved relative to the porous member by the first conveying unit to move the sheet to the porous member. When the sheet is sucked while being spread upward, the sheet can be fixed on the porous member in a state in which the swell and shrinkage of the sheet are extended. And since the through-hole of the part which is not covered with a sheet | seat can be block | closed with a shutter part, the motive power of a suction part can be reduced. The processing unit may be a cutting device. As the cutting device, a laser cutting device or a cutter can be used.

  The shutter unit includes a flexible shutter, a fixing unit that fixes one end of the flexible shutter, a second cylinder that winds the other end of the flexible shutter, and a rotating second cylinder. A rotating mechanism that urges the flexible shutter to wind up, and the second cylinder may be rotatably held by the roll base.

  According to such a configuration, since the second cylinder can be moved integrally with the roll base, the transport amount is controlled while the roll base and the second cylinder are moved by the separate transport devices and the respective movement amounts are measured. Simpler and cheaper than

  ADVANTAGE OF THE INVENTION According to this invention, the sheet processing apparatus in which a sheet | seat is more difficult to wrinkle can be provided.

The top view of the sheet processing apparatus of the Example of this invention. The front view of the sheet processing apparatus of the Example of this invention. III-III sectional drawing of the sheet processing apparatus of the Example of this invention.

  Hereinafter, an embodiment of a sheet processing apparatus according to the present invention will be described with reference to the drawings. About the same component, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted. In addition, this invention is not limited to the following embodiment, In the range which does not change the summary, it can implement suitably.

  FIG. 1 is a plan view of a sheet processing apparatus according to an embodiment of the present invention. FIG. 2 is a front view of the sheet processing apparatus according to the embodiment of the present invention. FIG. 3 is a III-III cross-sectional view of the sheet processing apparatus according to the embodiment of the present invention. In this embodiment, a sheet roll 9 in which a sheet 7 is wound around a first cylinder 8, a roll base 10 for rotatably holding the first cylinder 8, a porous member 6 having a plurality of through holes 6a, The chamber 2 provided with the porous member 6 on the wall surface, the vacuum pump 5 for discharging the gas in the chamber 2, the roll base 10 and the porous member 6 are moved from the sheet roll 9 while moving relative to each other. The sheet 7 is unwound and in contact with the sheet 7 in synchronism with the relative movement of the first conveying unit 3 that spreads the sheet 7 on the porous member 6 and the roll base 10 and the porous member 6. A shutter portion that closes the through hole 6a in a non-existing region, a processing portion 16 that processes the sheet 7 held on the porous member 6, and second transport portions 4a and 4b that transport the processing portion 16; And a control unit 15.

  The shutter unit includes a flexible shutter 12, a fixing unit 14 that fixes one end of the flexible shutter 12, a second cylinder 11 that winds the other end of the flexible shutter 12, and the second cylinder 11. The second cylinder 11 is rotatably held on the roll base 10. The rotation mechanism 19 is configured to rotate and bias the flexible shutter 12 so as to wind up.

  The roll base 10 rotatably holds the first cylindrical shaft 17 of the first cylinder 8 and the second cylindrical shaft 18 of the second cylinder 11. A shutter 12 is wound around the second cylinder 11 to form a shutter roll 13.

  The chamber 2, the first transport unit 3, and the second transport unit 4 a are installed on the base 1. The first transport unit 3 is a transport device that moves the roll base 10, and two first transport units 3 are installed so as to sandwich the chamber 2. Furthermore, the 2nd conveyance parts 4a and 4b are installed so that the 1st conveyance part 3 may be pinched | interposed. The second transport unit 4a moves the processing unit in the x direction. The second transport unit 4b moves the processing unit in the y direction.

  The vacuum pump 5 discharges the gas in the chamber 2. A porous member 6 having a large number of through holes 6 a is provided on the wall surface of the chamber 2. When the vacuum pump 5 is operated, the inside of the chamber 2 becomes a negative pressure with respect to the atmosphere, and the sheet 7 is held on the porous member 6 by the negative pressure at a place where the porous member 6 has the sheet 7. The valve 20 is provided in a portion communicating with the chamber 2. When the sheet 7 is taken out after the sheet 7 is processed, the valve 20 is opened to return the pressure in the chamber 2 to atmospheric pressure.

The control device 15 controls the first transport unit 3, the second transport units 4 a and 4 b, the processing unit 16, and the valve 20.
Next, the front view of the sheet processing apparatus of the embodiment of the present invention in FIG. 2 will be described in more detail. The sheet roll 9 is detachably mounted on the roll base. As shown in the roll base 10 of FIG. 2, if the notch is provided at the upper end and the opening is tapered, the operation for replacing the sheet roll can be facilitated. The cut portion is cut perpendicular to the porous member 6 (see FIG. 3). Although not shown, a pressing member that removably fixes the end of the sheet extended from the sheet roll to the chamber 2 is provided. If necessary, an additional conveyance unit that moves the processing unit 6 in the z direction (vertical direction) may be provided, and a conveyance unit that rotates the processing unit 6 about the z direction (vertical direction) as a central axis is added. May be provided.

Next, the III-III sectional view of the sheet processing apparatus of the embodiment of the present invention in FIG. 3 will be described in more detail.
One end of the flexible shutter 12 is fixed to the chamber 2 by a fixing portion 14. The other end of the flexible shutter 12 is wound around the second cylinder 11 to form a shutter roll 13. The flexible shutter 12 covers the porous member 6 so that the atmosphere is prevented from entering the chamber 2.

  Next, the operation of this apparatus will be described with reference to FIGS. First, a part of the sheet 7 is sucked and fixed on the porous member 6, and then the roll base 10 is moved relative to the porous member 6 by the first transport unit 3 to move the sheet 7 to the porous member 6. The sheet 7 is sucked while being spread upward. If it does so, it can fix on the porous member 6 in the state which the wave | undulation and crimp of the sheet | seat 7 extended. Next, the processing unit 6 is arbitrarily moved using the various conveying devices (4a, 4b, and other added conveying devices) to process the sheet 7. At that time, when the roll base 10 moves, the shutter roll 13 moves together with the roll base 10 while unwinding or winding up the flexible shutter 12 from the shutter roll 13.

  As described above, according to the embodiment of the present invention, it is possible to make the sheet more difficult to be wrinkled by sucking and fixing the sheet on the top plate having a plurality of through holes.

1 Base 2 Chamber 3 First transfer section (moves roll base)
4a Second transport unit (moves the processing unit in the x direction)
4b Second transport unit (moves the processing unit in the y direction)
5 Vacuum pump 6 Porous member 6a Through hole 7 Sheet 8 First cylinder 9 Sheet roll 10 Roll base 11 Second cylinder 12 Flexible shutter 13 Shutter roll 14 Fixing part 15 Control part 16 Processing part 17 First cylindrical shaft 18 Second Cylindrical shaft 19 Rotating mechanism 20 Valve

Claims (3)

A sheet roll in which a sheet is wound around a first cylinder;
A roll base for rotatably holding the first cylinder;
A porous member having a plurality of through holes;
A chamber provided with the porous member on its surface;
A vacuum pump for discharging the gas in the chamber;
A first transport unit that unwinds the sheet from the sheet roll and spreads the sheet on the porous member while moving the roll base and the porous member relative to each other;
A shutter portion that closes the through-hole in a region that is not in contact with the sheet in synchronization with the relative movement of the roll base and the porous member;
A processing section for processing the sheet held on the porous member;
A second transport unit for transporting the processing unit;
A sheet processing apparatus comprising a control unit. The sheet processing apparatus according to claim 1, wherein the processing unit is a cutting apparatus. The shutter part is
A flexible shutter;
A fixing portion for fixing one end of the flexible shutter;
A second cylinder wound around the other end of the flexible shutter;
A rotation mechanism that urges the second cylinder to rotate and wind up the flexible shutter;
The sheet processing apparatus according to claim 1, wherein the second cylinder is rotatably held on the roll base.

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