JP2002337088A - Cutter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutter device eliminating generation of a powdery object by cutting an elastic unit of a receiving blade shaft with a cutter of a blade shaft, eliminating generation of a cutting position deviation by a change of tension when a sheet-state object passes a cutting part, and eliminating generating of deformation in the cut sheet-state object. SOLUTION: This device comprises a blade shaft 8 mounting a cutter 12 in a shaft unit 10 and a receiving blade shaft 9 mounting a supporter 17 abutted with the cutter 12 in a shaft unit 16, and in this constitution, a cutter contact part of the supporter 17 is formed of elastic unit, and this elastic unit is divided in a contact position of the cutter 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a synthetic resin film,
The present invention relates to a cutting device that divides an extremely thin band-shaped sheet material such as a battery laminated sheet in the width direction.

[0002]

2. Description of the Related Art Generally, when an ultrathin belt-like sheet such as a synthetic resin film or a laminated sheet for a battery is divided in the width direction, for example, the sheet-like sheet described in JP-A-2001-38674 is used. A cylindrical support for winding and supporting the object, a rotary shaft arranged rotatably in parallel with the sheet-like object on the cylindrical support, and a rotary blade fixed to the rotary shaft and cutting the sheet-like object. A slitter device having a configuration in which a circumferential groove having a predetermined width into which a rotary blade enters a cylindrical support or a slitter device having a structure in which an elastic body is embedded in the circumferential groove is used.

[0003]

However, in the above-mentioned configuration in which the circumferential groove into which the rotary blade enters is provided in the cylindrical support as described above, since the support has a space portion, the sheet-like material is formed in the space. There is a problem that the tip of the sheet-like object is deformed by dropping into the portion, and in the latter configuration in which the elastic body is embedded in the circumferential groove, the blade rotates in a state in which it comes into contact with the elastic body. If there is a difference between the velocity on the outer peripheral surface of the elastic body and the velocity on the outer peripheral surface of the elastic body, the elastic body is shaved, a powdery substance is generated and adheres to the cut sheet-like substance, and the surface of the sheet-like substance in the post-processing step There is a problem that scratches and the like are caused on the surface. According to the present invention, the elastic body of the receiving blade shaft is cut by the blade of the blade shaft so that no powdery material is generated, the cutting position is not shifted due to a change in tension when the sheet-like material passes through the cutting portion, and the cut sheet is cut. It is an object of the present invention to provide a cutting device in which a shape does not deform.

[0004]

According to a first aspect of the present invention, there is provided a cutting apparatus, wherein a blade contacting portion of a receiving shaft is formed of an elastic body. The body is divided at the contact position of the blade.

[0005] Further, in the cutting apparatus of the present invention, the support as described in claim 2 is constituted by a plurality of support rings or a plurality of support rings and spacers. 5. A configuration in which an elastic member is attached to an outer peripheral portion of an elastic member or a rigid member.
It can be configured to be mounted on the shaft body while being sandwiched between them.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic view showing an embodiment of a slitter provided with a cutting device according to the present invention. The slitter is an ultra-thin wide sheet material such as a synthetic resin film or a laminated sheet for a battery. A feeding device 1 for sending out at a predetermined speed, guide rollers 2, 3 and a cutting device 4, and a take-up roller 5 (5-1, 5-1) for picking up a narrow sheet material cut to a predetermined width at a predetermined speed. 5-2) and a winding device 6 (6-1, 6-2) for winding each sheet.

As shown in FIGS. 2 and 3, the cutting device 4 has a blade shaft 8 rotatably mounted on a machine frame 7 by a bearing (not shown), and a bearing (not shown) on the machine frame 7. The receiving shaft 9 is rotatably mounted, and the blade shaft 8 is moved with respect to the receiving shaft 9 by a screw mechanism or the like to adjust the inter-axis distance. The receiving shaft 9 is a blade shaft 8
To adjust the distance between the shafts.

The blade shaft 8 has a cylindrical collar 11 for positioning the first blade 12, a disk-shaped blade 12, and a cylindrical spacer 13 for the width direction (W) of the sheet to be cut. A disk-shaped blade 12, a spacer 13 and the like are sequentially fitted and inserted into the shaft body 10 and are integrally formed by tightening from both sides with a washer 14 and a nut 15 so that the collar 11 is positioned on both sides thereof.

The blade 12 has a double-edged blade edge 12a, and the angle of the blade edge is 10 ° to 45 °. Also,
The length of the blade edge portion 12a is 1.5 to 5 mm, and is formed of a cemented carbide or SKH. The cutting edge angle and the cutting edge length are set according to the material, hardness, thickness and the like of the sheet.

The receiving shaft 9 is a cylindrical collar 1 for positioning the first support ring 18 forming the support 17.
9. Support ring 2 abutting on the end face of support ring 18
0, a support ring 2 that contacts the other end surface of the support ring 20
0, the support ring 18 abutting on the end face of the support ring 20
And the like are sequentially inserted into the shaft body 16, and the collars 19 are fastened from both sides with washers 21 and nuts 22 so that the collars 19 are located on both sides thereof.

The support rings 18 and 20 are formed of cylindrical rigid members 18a and 20a (bosses formed of stainless steel or a hard synthetic resin such as vinyl chloride resin, polyamide resin, bakelite, etc.) to be inserted into the shaft 16. Cylindrical elastic members 18b and 20b (urethane rubber,
Synthetic rubber such as butyl rubber and silicon rubber)
It is configured to be integrally attached by bonding, welding, fitting or the like. The support rings 18 and 20 may be formed of only elastic members.

The cutting edges 12a of the blades 12 are located at the abutting portions of the elastic members 18b, 20b between the support ring 18 and the support ring 20. It is preferable to perform chamfering or curved surface processing of 01 to 0.2.

The collars 11 and 19 may be made of stainless steel or a hard synthetic resin such as vinyl chloride resin, polyamide resin, bakelite or the like.
20 and the like, or an elastic member or a rigid member and an elastic member.

The above-mentioned blade shaft 8 and receiving blade shaft 9 are separated from each other by the sheet-like material 100 to be cut running on the support 17 of the receiving blade shaft 9, and the cutting edge 12 a of the blade 12 is located below the lower surface of the sheet-like material 100. The distance between the axes is adjusted so that the sheet-like material 100 is cut in a state where the sheet-like material 100 protrudes by a predetermined amount (0.01 to 0.2 mm).

When the sheet-like material 100 is cut by the above-described cutting device, the tip end 12a of the blade 12 has a tapered portion that contacts the elastic members 18b and 20b, and the tip end does not hit. It is possible to prevent the occurrence of a state object.

Further, the sheet-like material 100 is
8. Since the sheet is cut while being supported by the elastic member of the support ring 20, the sheet 100 can be cut straight without being deformed or meandering.

In place of the above-described cutting device, a blade shaft 23 as shown in FIG. 4 is used to position the first blade 12, a cylindrical collar 11, pressing spacers 25 arranged on both sides of the blade 12, 26, a cylindrical spacer 27, a pressing spacer 25, and a cutting tool 1 for determining an interval dimension of the cutting tool 12 so as to be in the width direction (W) of the sheet-like material 100 to be cut.
2. A structure in which the pressing spacer 26, the spacer 27, and the like are sequentially fitted and inserted into the shaft body 10, and the collar 11 is positioned on both sides thereof and tightened from both sides with the washer 14 and the nut 15 to form an integral body. Used, receiving blade shaft 2
4 is a cylindrical collar 19 for positioning the first support ring 29 forming the support 28;
9, a support ring 30 that contacts the other end surface of the support ring 9,
0, a support ring 29 abutting on the other end surface of the spacer 31, a support ring 30 abutting on the other end surface of the support ring 29, etc., are sequentially inserted into the shaft body 16 and collars are provided on both sides thereof. It is possible to use one having a structure in which it is fastened from both sides with the washer 21 and the nut 22 so that the position 19 is located and formed integrally.

The support rings 29 and 30 are
As in the case of 20, it can be formed by cylindrical rigid members 29a, 30a and elastic members 29b, 30b.

The spacers 27 and 31 are provided on the support ring 2.
A configuration similar to that of 9, 30 or a material and configuration such as the collar 19 is used.

The blade 12 of the blade shaft 23, the pressing spacer 2
The relationship between the support spacers 5 and 26 and the support rings 29 and 30 of the receiving shaft 24 is as shown in FIG. 5, and the pressing spacer 25 is provided with an inclined surface 25b of a cover 25a for covering the tip 12a of the blade 12. Is preferably larger than the angle of the inclined surface 12b of the blade 12.

If the angle of the inclined surface 25b is the same as or smaller than the angle of the inclined surface 12b of the blade 12, an unnecessary force acts on the blade and a gap size increases when there is a processing error. There is a problem of doing.

The distance (V) between the blade 12 and the inclined surface 12b is set in the following range.

0 <V <t If the interval (V) is larger than the thickness (t) of the sheet 100, the sheet 100 enters the gap and the cut portion of the sheet 100 is deformed. When the interval dimension (V) is 0, there is a problem that an excessive force acts on the blade 12.

Covering part 25a of pressing spacer 25
It is preferable that the length dimension (L) of the pressing portion for pressing the sheet-like material (pressing and holding by the support ring) is 2 mm or more. When the length of the pressing portion is 2 mm or less, pressing marks or pressing wrinkles may be generated on the sheet-like material 100 depending on the material, thickness, rigidity and the like of the sheet-like material 100.

The pressing spacer 26 is a pressing spacer 25.
Since the shape of the pressing spacer 25 is the same as that of the pressing spacer 25,
Is the inclined surface 12 of the blade 12 opposite to the blade edge 12a.
cover c.

The pressing spacers 25 and 26 are
And a hard synthetic resin such as vinyl chloride resin, polyamide resin, and bakelite.

When the sheet 100 is cut by the above-described cutting device, the sheet 100 is supported by the support members 29 and 30 of the receiving shaft 24 and the pressing spacers 25 and 2 of the blade shaft 23.
6, the sheet 100 can be cut straight and reliably without moving or deforming the sheet 100 when cutting.

[0028]

According to the cutting apparatus of the present invention, the blade contact portion of the receiving shaft is formed of an elastic body, and the elastic body is divided at the contact position of the blade. Therefore, the elastic body is not shaved or cut by the blade, so that no powdery material is generated, and it is possible to prevent the powdery material from adhering to the cut sheet-like material.

According to the cutting apparatus of the present invention, when the support is constituted by a plurality of support rings or a plurality of support rings and a spacer, the support ring having a different length dimension or a fixed length. The cutting position can be arbitrarily changed only by preparing a spacer having a different length dimension from the supporting ring of the above. The supporting ring as described in claim 3 has an elastic member or an elastic member on the outer peripheral portion of the rigid member. With the attached structure, the sheet material is cut while being conveyed at a predetermined speed or under a predetermined tension by appropriately selecting the material of the elastic member according to the material, thickness, rigidity, etc. of the sheet material. If the cutting tool according to claim 4 is mounted on the shaft while being held by the pressing spacer so that only the cutting edge protrudes by a predetermined amount, Jo was is cut in a state of being held by pressing a spacer between the support and the blade shaft of the received blade shaft can be straight and reliably cut.

[0030]

[Brief description of the drawings]

FIG. 1 is a schematic view showing one embodiment of a configuration of a slitter provided with a cutting device of the present invention.

FIG. 2 is a schematic front view showing one embodiment of the configuration of the cutting device of the present invention.

FIG. 3 is a schematic side view of FIG. 2;

FIG. 4 is a schematic front view showing another embodiment of the configuration of the cutting device of the present invention.

FIG. 5 is a schematic diagram showing details of a cutting section in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Supply device 2, 3 Guide roller 4 Cutting device 5, 5-1 and 5-2 Take-up roller 6, 6-1 and 6-2 Winding device 7 Machine frame 8, 23 Blade shaft 9, 24 Receiving blade shaft 10 , 16 Shaft body 11, 19 Collar 12 Cutting tool 13, 27, 31 Spacer 14, 21 Washer 15, 22 Nut 17, 28 Support body 18, 20, 29, 30 Support ring 25, 26 Pressing spacer 12a Blade tip 12b, 12c , 25b Inclined surface 25a, 26a Cover 18a, 20a, 29a, 30a, 31a Rigid member 18b, 20b, 29b, 30b, 31b Elastic member

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Takahiro Yoshimura, 1-1-1, Sonoyama, Otsu, Shiga Prefecture Toray Engineering Co., Ltd. (72) Toshiyuki Kato, 1-1-1, Sonoyama, Otsu, Shiga F-term in Toray Engineering Co., Ltd. (reference) 3C027 TT04 TT05 TT07

Claims (4)

[Claims] 1. An apparatus comprising: a blade shaft having a blade mounted on a shaft; and a receiving blade shaft having a support with which the blade abuts mounted on the shaft, a blade contact portion of the support. Is formed of an elastic body, and the elastic body is divided at a contact position of a blade. 2. The cutting apparatus according to claim 1, wherein the support comprises a plurality of support rings or a plurality of support rings and spacers. 3. The cutting device according to claim 2, wherein the support ring has a configuration in which the elastic member is attached to an outer peripheral portion of the elastic member or the rigid member. 4. The cutting tool according to claim 1, wherein the cutting tool is mounted on the shaft body while being held by the pressing spacer so that only the cutting edge protrudes by a predetermined amount. A cutting device according to claim.