JPH08323531A - One side cutting slitter - Google Patents

Abstract

PURPOSE: To slit a slitting material in a precise width through one side cutting by providing guide rollers for supporting the slitting material in front of a slitting material passing opening on a cutting device. CONSTITUTION: When it is necessary to slit a strip of a specific width from a slitting material 15, guide rollers 14a, 14b are transfered by a transfer driving device and the intervals of round edges 5a of a cutting device are adapted to the specific width, after which the slitting material 15 is passed through and only one side of the slitting material 15 is slitted by a round edge 5a. By this slitting, the slitting material 15 is restrained of its force from facing the direction other than the passing direction and runs straight because guide rollers 14a, 14b are provided in front of the slitting material passing opening thereby allows the slitting material 15 to be precisely slitted in the specified width.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slitter for cutting a material to be slit.

[0002]

2. Description of the Related Art Usually, a wide metal plate manufactured by a material manufacturer is slit into a desired size width by a multi-slit slitter, and the slit material is subjected to arbitrary punching and forming processes. And a predetermined product is manufactured.

[0003]

However, the above-mentioned multi-slit slit by the multi-slit slitter has the following problem.
Although it is highly efficient if only looking at the productivity of the slitting work, it is not possible to flexibly respond to the demand for slits with a small number of strips such as 1 or 2 strips. .

Further, since the multi-slit cutting slitter performs slitting by providing round blades at predetermined intervals, the number of parts of the entire apparatus increases and the size becomes large, and at the same time, the outside of at least one of the round blades becomes scrap. Therefore, the material yield is unavoidable.

The present invention has been made in view of the above-mentioned circumstances, and a single-slit slit obtained by one-sided cutting can be performed with high plate width accuracy, without lowering the material yield, and downsizing of the apparatus and of the mechanism. It is an object of the present invention to provide a simplified slitting slitter.

[0006]

Means for Solving the Problems The gist of the present invention to achieve the above object is to provide a slit material at a front portion of a slit material passage opening of a cutting device provided with a pair of round blades for slitting the slit material. A single-sided slitter is provided with a supporting guide roller, the guide roller being movable inward and backward in the passage line, and the cutting interval of the material to be slit can be freely changed.

[0007]

According to the present invention, since the guide roller for supporting the slit material is provided in the front part of the slit material passage opening of the cutting device provided with the pair of round blades for slitting the slit material, only one side is provided. Even as a slit, the material to be slit runs parallel to the surface of the round blade without being skewed or meandering along the sheet passing line and is accurately slit to a predetermined width. Further, even if there is a plate thickness deviation of the material to be slit or a sudden change in the plate passing speed, the slit can be slit to a predetermined width without being affected by it.

Further, since a simple mechanism for supporting the material to be slit and slitting is supported only by the guide roller, the size and size of the device are reduced as compared with the conventional device, and the number of parts is reduced. The manufacturing cost and the area occupied by the equipment have been greatly reduced.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the drawings based on an embodiment. In the drawing, reference numeral 1 denotes a sheet passing line, and in FIG. 1, a material to be slit passes from the front surface of the paper surface to the back surface side. A cutting device 2 is provided with a pair of round blades 5a and 5b and slits one side of the material to be slit. 3a and 3b are arbor shafts for rotating the circular blades 5a and 5b. 4a and 4b are flanges, and clearance spacers 6a and 6b are interposed if necessary.
The plate 7 is sandwiched and fixedly attached by a tightening tool (not shown).

Reference numeral 8 is an overlap adjusting device, which is, for example, a flat spacer and is a housing 9 for the above-mentioned overshafts 3a and 3b.
It is provided between a and 9b and adjusts and maintains the overlap of the round blades 5a and 5b to a predetermined value.

Reference numeral 12 denotes a rotary driving device which rotates the arbor shafts 3a and 3b in opposite directions via a rotation converter 13 to give a cutting action to the round blades 5a and 5b.

Numeral 11 is an arbor shaft vertical movement device,
It is used for adjusting / replacement of the barrup adjusting device 8, for replacing the above-mentioned arbor shafts 3a, 3b, or for maintenance and inspection.

Numerals 14a and 14b are guide rollers, which are provided at the front of the entrance of the sheet passing line 1 of the cutting device 2 and abut against the side surface of the material to be slit and rotate to support the round blades 5a and When slitting one side of the material 15 to be slit by 5b, skewing, meandering, etc. are prevented, and the material is run straight, that is, parallel to the surfaces of the round blades 5a, 5b.

Further, the guide rollers 14a and 14b.
Biasing tool 16 to the inside of the threading line 1 on one or both sides
For example, a spring, a fluid pressure cylinder, etc. are connected, the slit material 15 is made to run parallel to the surfaces of the circular blades 5a, 5b, and the variation of the plate width is prevented in the one-sided slit.
Reference numeral 17 is a roller provided in the guide rollers 14a and 14b.

Reference numeral 18 denotes a moving drive device which moves the guide rollers 14a and 14b forward and backward with respect to the cutting device 2 to a desired slit width and can be moved in micron order. Reference numeral 19 is the mobile table.

The configuration is as described above, and the operation will be described below. When it is necessary to slit one slit with a predetermined plate width from the material to be slit 15, the guide rollers 14a, 1
4b is moved by the movement drive device 18, and the distance between the cutting blade 2 and the round blades 5a, 5b is adjusted to a predetermined plate width.

After that, the slit material 15 is passed through, and only one side of the slit material 15 is slit by the round blades 5a and 5b. In the slit, since the guide roller is provided in the front part of the passage opening of the material 15 to be slit, the material 15 to be slit is constrained in a direction other than the sheet passing direction, travels straight, and slits accurately to a predetermined plate width. To be done.

[0018]

Since the present invention is as described above, it is possible to slit the material to be slit into a single piece with a high plate width accuracy.
The fact that the predetermined slit is formed by one-side cutting has an effect that the scrap that is produced can be roughly halved and the yield can be improved.

Further, the entire apparatus is downsized and the mechanism is simplified, and the manufacturing cost and the area occupied by the apparatus due to the reduction of the number of parts related to the apparatus can be greatly reduced.

[Brief description of drawings]

FIG. 1 is a diagram showing a one-sided slitter in one embodiment of the present invention.

FIG. 2 is an enlarged view showing a guide roller portion in one embodiment of the present invention.

[Explanation of symbols]

 1, passing line 2 for slit material, cutting devices 3a, 3b, arbor shafts 4a, 4b, flanges 5a, 5b, round blades 6a, 6b, clearance spacer 7, plate 8, overlap adjustment Device 9, Housing 10, Thrust bearing 11, Over-axis vertical movement device 12, Rotation drive device 13, Rotation converters 14a and 14b, Guide roller 15, Biasing tool 16, Slit material 17, Roller 18, Moving drive apparatus

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenichiro Suemune 2-10-1 Komine, Hachimansai-ku, Kitakyushu, Fukuoka Prefecture Mitsui High-Tech Co., Ltd.

Claims (2)

[Claims] 1. A cutting device having a pair of round blades for slitting a material to be slit, and a guide roller for supporting the material to be slit at a front part of a slit material passage plate opening with respect to the cutting device. A single-sided slitter characterized by. 2. A cutting device comprising a pair of round blades for slitting a material to be slit, wherein a guide roller for supporting the material to be slit is provided at a front portion of a passage opening of the material to be slit.
A one-sided slitter in which the guide roller is movable inward and backward in the sheet passing line and the cutting interval of the material to be slit can be freely changed.