JPH0753264B2 - Slitter fine powder removal device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slitter which conveys paper, cloth, film and the like (hereinafter, referred to as sheets) and cuts along the conveying direction, to the surface of the cut sheets. The present invention relates to a slitter fine powder removing device for removing adhering cutting fine powder.

[0002]

The inventor of the present invention has invented a device for adhering and removing dust adhering to the surface of sheets conveyed in a printing process or the like by adhering it to an adhesive roll.
77, JP-A 1-255851, JP-A 63-1238.
No. 8 etc., the device was used to remove fine powder that was cut by a slitter and adhered to the vicinity of the cutting opening of the sheets.

[0003]

The slits for sheets formed through a slitter that cuts while transporting are straight and continuous in the transport direction, and the fine powder generated at that time is entangled in the slits or near the slits. Attached to. Therefore, when the device according to the invention of the prior application is used to remove the fine powder, the fine powder adheres only to the portion through which the cutting opening of the adhesive roll passes, and the attached fine powder covers only the portion through which the cutting opening passes. Therefore, even if the fine powder removing ability is lost and the periphery of the area has an adhesive force for removing the fine powder, it is necessary to stop the slitter and clean the entire peripheral surface of the adhesive roll. Especially in fibrous sheets such as paper and cloth, fine powder is likely to be generated from the cutting opening. Therefore, if an adhesive roll is applied to the slitter, even if the paper or cloth is cut about 20 m, it will pass through the cutting opening of the adhesive roll. Since only the spots are covered with fine powder and the ability to remove fine powder is lost, the adhesive roll must be cleaned frequently, and the slitter must be stopped each time, so the operating rate of the slitter is significantly reduced.

In view of the above, the present invention relates to a slitter for cutting the conveyed sheets along the conveying direction, and when the fine cutting powder adhering to the surface of the cut sheets is removed by the adhesive roll, The purpose is to maintain the fine powder removing ability of the above for a long period of time, avoiding frequent cleaning of the peripheral surface thereof, and thereby increasing the operation rate of the slitter.

[0005]

A slitter fine powder removing device 14 according to the present invention cuts sheets 11 to be conveyed along a conveyance direction by a slitter 12, which is attached to the surface of the sheets cut. An adhesive roll 13 for adhering and removing fine powder, and the adhesive roll 13 for sheets 11
And a device 16 for driving the adhesive roll 13 in the roll axis direction.

The reciprocating drive device 15 for reciprocating the adhesive roll 13 toward the conveying surface of the sheets 11 includes a drive device 30 such as an air cylinder, a hydraulic cylinder, a solenoid valve, a cam, a link, and a follower driven by the drive device 30. Barrel movable member 22
The movable member 22 is applied with the shaft center of the adhesive roll 13 supported. A device 16 (hereinafter, referred to as a horizontal drive device) for driving the adhesive roll 13 in the axial direction of the roll is also a drive device such as an air cylinder, a hydraulic cylinder, a solenoid valve, a cam, a link, and a follower driven by the drive device. It is constituted by a movable member, and the movable member is applied by being directly connected to the adhesive roll 13 or by being connected to a shaft member that axially supports the adhesive roll.

In this case, the adhesive roll 13 operating to remove the fine powder is rotating while adhering to the surface of the sheets 11 during its operation. Therefore, if it is attempted to drive the adhesive roll 13 in the roll axis direction orthogonal to the rotation direction during its operation, the adhesive roll 13 receives a strong reaction force from the sheets 11 and the roll is intentionally taken. When the sheet 11 is driven in the axial direction, the sheets 11 are dragged by the adhesive roll 13 and vertical wrinkles along the transport direction are formed in the sheet 1.
Since it occurs in No. 1, the adhesive roll 13 that is actually operating cannot be driven in the roll axis direction. Therefore, the horizontal drive device 16 operates so as to drive the adhesive roll 13 in the roll axis direction when the adhesive roll 13 is driven by the reciprocating drive device 15 and separated from the sheets 11.

[0008]

1 and 2 show an embodiment of the present invention, in which a slitter 12 is a delivery roll 23 for delivering the sheets 11 and a winding roll 2 for winding the sheets 11.
4 and the sheets 11 from the delivery roll 23 to the winding roll 2
4, a plurality of disk knives 25 arranged at regular intervals in the width direction of the sheets 11,
A backup roll 26 that supports the sheets 11 is provided. The sheets 11 are cut from the multiple rolls of tape 31 by the disc knife 25 in the process of being pulled out from the delivery roll 23 and wound up by the winding roll 24. Rolled up.

The slitter fine powder removing device 14 includes an adhesive roll 13 supported by a plurality of tapes 31 drawn from a disk knife 25, and a reciprocating drive for reciprocally driving the adhesive rolls 13 toward the many tapes 31. The device 15 and a horizontal drive device 16 that drives the adhesive roll 13 in the roll axis direction.

The horizontal drive unit 16 is composed of a screw shaft 17, a female screw flange 19 having a screw hole 18 through which the screw shaft 17 is screwed, and a motor 20 for rotating the screw shaft 17. 17 and motor 20
The timing belts 33 are connected to each other.
The pitch of the screw threads of the screw shaft 17 and the screw hole 18 is set to about 2 mm.

The adhesive roll 13 is composed of a cylindrical body 21 having an adhesive peripheral surface, and is externally fitted to a female screw flange 19 screwed on a screw shaft 17 so as to be rotatably supported and conveyed. It comes in contact with the tape 31 and rotates. Reference numeral 29 denotes a bearing mounted between the female screw flange 19 and the tubular body 21, and thereby the tubular body 21.
Is rotatable with respect to the female screw flange 19.

The reciprocating drive device 15 includes an air cylinder 3
0, a movable member 22 attached to the tip of the piston rod 32 and driven, a rail 15, and a slide bracket 34 slidably engaged with the rail 15, and the movable member 22 is a slide bracket 34. It is carried by. The screw shaft 17 of the horizontal drive device 16 is axially supported by the movable member 22, and the air cylinder 30 is attached to the movable member 22.
The adhesive roll 13 is separated from the tape 31 when it is reciprocally driven. Reference numeral 28 is a pressing roll that holds the tape 31 when the adhesive roll 13 separates.

The motor 20 is a servomotor which is driven by the air cylinder 30 through the movable member 22 to rotate the screw shaft 17 once every time the adhesive roll 13 is separated from the tape 31. The screw shaft 17 and the screw hole are used. Since the pitch of the 18 threads is about 2 mm, the adhesive roll 1
3 is one pitch (about 2 mm) of the screw thread in the axial direction of the roll together with the female screw flange 19 every time it is separated from the tape 31.
You will move one by one. Then, the tape 31 is rotated in contact with the cutting edge 36 of the sheet, which is the side edge of the tape 31, to rotate the adhesive roll 1.
When the air cylinder 30 is driven when fine powder adheres to the place where the cutting opening of 3 passes and the fine powder removing ability deteriorates,
Adhesive roll 1 around the part that was in contact with the cutting opening up to that point, and has no fine powder yet attached and has a fine powder removal capability.
3 and the cutting opening 36 come into contact with each other and rotate, and the fine powder generated from the cutting opening is adsorbed to the new area and removed.

In this way, the adhesive roll 13 is moved by one pitch (about 2 mm) of the screw thread of the screw shaft 17,
Fine particles will be removed for a long period of time until the disk knife 25 has been moved in the roll axis direction by an amount corresponding to the distance between the disk knives 25, that is, the width of the tape 31, and the peripheral surface thereof does not need to be cleaned frequently. The operating rate of 12 will be improved. When the adhesive roll 13 moves in the roll axis direction and fine powder adheres to the entire peripheral surface, the cleaning device according to Japanese Patent Laid-Open No. 2-227177 of the above-mentioned prior invention is used to remove the fine powder. It is advisable to attach it in the vicinity of the adhesive roll 13.

As described above, in the present invention, the adhesive roll 13 is separated from the instantaneous sheets at every constant length of the sheets passing through the slitter, and at that time, the adhesive roll 13 is moved in the axial direction of the roll to cut the sheets. Adhesive roll 13 in contact with 36
By changing the contact point of the cutting roller, the fine cutting powder generated in the slitter and adhering to the sheets is constantly adsorbed to a new position of the adhesive roll 13 and removed. Horizontal drive 16
Is controlled by the computer so that it is driven every time the sheets 11 are conveyed by a certain length and cut.

[0016]

As described above, the adhesive roll 13 of the slitter fine powder removing device 14 according to the present invention separates from the sheets 31 every time the sheets 31 cut into a tape shape are conveyed for a certain length. Each time it moves in the axial direction, a new portion of the peripheral surface of the adhesive roll, which was not in contact with the cutting opening 36 of the sheets until then, comes into contact with the cutting opening. For this reason, the fine cutting powder on the surface of the sheets 31 adheres to a new portion having adhesive force and is reliably removed. In this way, the fine powder is sequentially moved in the axial direction and cut on the entire peripheral surface of the adhesive roll. Since it is not necessary to clean the adhesive roll until the fine powder adheres, the operation rate of the slitter is improved. As described above, the fine powder removing device 14 according to the present invention is convenient for removing the fine powder from the slitter 12 which cuts the sheets 11 into the multiple tapes 31.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a fine powder removing apparatus according to the present invention.

FIG. 2 is a front view of a main part of a fine powder removing device according to the present invention.

[Explanation of symbols]

 11 Sheets 12 Slitter 13 Adhesive Roll 14 Fine Powder Removing Device 15 Reciprocating Drive Device 16 Horizontal Drive Device 17 Screw Shaft 18 Screw Hole 19 Female Screw Flange 20 Motor 21 Cylindrical Body 22 Movable Member 23 Delivery Roll 24 Winding Roll 25 Knife 26 Backup Roll 27 Guide Roll 28 Presser Roll 29 Bearing 30 Air Cylinder 31 Tape 32 Piston Rod 33 Timing Belt 34 Slide Bracket 35 Rail 36 Cutting Edge

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location D06H 7/00 7199-3B

Claims (3)

[Claims] 1. (a) A slitter having an adhesive roll 13 for adhering and removing cutting fine powder adhering to the surface of the cut sheets in a slitter 12 for cutting the conveyed sheets 11 along the conveying direction. A fine powder removing device, (b) a reciprocating drive device 15 that reciprocally drives the adhesive roll 13 toward the conveyance surface of the sheets 11, and (c) a device that drives the adhesive roll 13 in the axial direction of the adhesive roll. 16. A slitter fine powder removing device comprising: 16. 2. A female screw having a screw shaft 17 and a through screw hole 18 screwed to the screw shaft 17, in which the device 16 for driving the adhesive roll according to claim 1 in the axial direction. A flange 19 and a motor 20 for rotating the screw shaft 17 are provided, and (b) the peripheral surface of the adhesive roll 13 is
(C) The cylindrical body 21 is rotatably supported by a female screw flange 19 screwed to the screw shaft 17, and (d) the reciprocating drive device 15 is movable. The slitter fine powder removing device according to claim 1, wherein the member 22 pivotally supports the screw shaft 17. 3. The motor 20 according to claim 2 above,
The reciprocating drive device 15 causes the adhesive roll 13 to move the sheets 1
The slitter fine powder removing device according to claim 1, wherein the slitter fine powder removing device rotates when it is separated from 1.