JPH0839334A - Slitter by cutting with one side perpendicular and the other slant - Google Patents

Abstract

PURPOSE:To precisely slit a plate width from a material to be slit by cutting with one side perpendicular and the other slant, by providing a cutting device having a round tooth on one side of a material to be slit with a plate passing line between, and providing a rotation bearing roll making contact with the material to be slit on the other side. CONSTITUTION:The space between round teeth 3a, 3b of a cutting device 2 is set to a prescribed plate width. A plate passing line 1 is regulated so that the non-slit side end of the material to be slit passes the set position of rotation bearing rolls 11a, 11b. Thereafter, the material to be slit is passed, and only one side of the material to slit is slit by the round teeth 3a, 3b. Although the material to be slit receives a force for obliquely traveling or snaking it because of cutting with one side perpendicular and the other slant the force directed to other than the passing direction is constrained in the non-slit side end surface by the rotation bearing rolls 11a, 11b, and the material to be slit is linearly traveled and slit to a prescribed plate 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 into pieces.

[0002]

2. Description of the Related Art A predetermined product is manufactured by slitting a material, for example, a wide metal plate, into a narrow width having a required size, and punching and forming from the slit material.

The slits are generally cut into multiple strips from a raw metal plate. Multi-row cutting is high in terms of productivity only for slitting work, but if it is not necessary to immediately perform molding processing leading to product manufacturing after slitting, for example, rust may occur in the slit material or floating substances may adhere. There is a problem that it becomes dirty.

[0004]

[Problems to be Solved by the Invention]
For example, there is a case where it is desired to slit only one required slit material. In this case, the conventional slitter is provided with round blades at a predetermined interval and slits with this. The slitter
Then, the material yield is reduced because at least one of the outer edges of the round blade is scrap.

Further, there is a trimmer for cutting out the side end portion (edge) of the raw metal plate as disclosed in, for example, Japanese Patent Laid-Open No. 59-205214, and it is conceivable to use this to slit one strip. However, with a trimmer, when the cut-off width remains extremely narrower than the main material, such as cutting off the side edge from a wide metal plate, there is little change in the width, but when cutting out a slit material to be a processing material of a desired plate width. Causes a problem that the plate width fluctuates due to skewing, meandering, etc., and it is not possible to accurately slit into a predetermined plate width.

It is an object of the present invention to obtain a slitter which can cut only one side from a slit material without skewing or meandering, that is, one slit allows a single strip to be formed with high plate width accuracy.

[0007]

DISCLOSURE OF THE INVENTION The gist of the present invention is to provide a rotating device which is provided with a cutting device having a pair of circular blades on one side of a threading line of a material to be slitter and which is in contact with the material to be slitter on the other side. It is in a one-sided slitter equipped with a roll. Also,
The rotary support roll is provided in the same manner as between the axes of the round blades. Further, the rotary support roll is constituted by a rubber roll. Further, a side guide is provided on the entrance side of the cutting device and the rotary support roll, and a biasing member for advancing and retracting to the inside of the plate passing line is provided on one or both of the side guides.

[0008]

According to the present invention, a cutting device having a pair of round blades on one side sandwiching a threading line is provided, and on the other side, there is provided a roll for abutting and rotatingly supporting a material to be slit. Even if only the side is slit, the material to be slit runs parallel to the surface of the round blade and is accurately slit to a predetermined width without skewing or meandering through the sheet passing line. Further, if the rotary support roll is provided in the same manner as between the axes of the round blades, 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 the deviation. In addition, the rotary bearing roll is rubbed.
When the roll is used, the conformability to contact with the material to be slit is improved, and even if the surface property of the material to be slit, plate thickness deviation, or the sheet passing speed is suddenly changed, the slit can be slit to a predetermined width.

If a side guide connected to a biasing device for advancing and retracting to the plate passing line side is provided on the entrance side of the cutting device and the rotary support roll arranged with the plate passing line interposed therebetween, the slit material is passed through. The plate is more stable and can be slit into a predetermined plate width.

[0010]

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. Reference numeral 2 is a cutting device, which is arranged on one side of the plate passing line 1. The cutting device 2 is provided with a pair of circular blades 3a and 3b for slitting one side of the material to be slit. 4a and 4b are arbor shafts for rotating the circular blades 3a and 3b. Reference numerals 5a and 5b are flanges to which round blades 3a and 3b are attached with a clearance spacer (not shown) interposed if necessary.

Reference numeral 6 is an overlap adjusting device, which is, for example, a flat spacer and is a housing 7 of the above-mentioned overshafts 4a and 4b.
It is provided between a and 7b and adjusts and maintains the overlap of the round blades 3a and 3b to a predetermined value.

Reference numeral 8 denotes a rotary driving device for rotating the arbor shafts 4a and 4b in opposite directions via a rotation converter 9 to give a cutting action to the round blades 3a and 3b.

Numeral 10 is an arbor shaft vertical movement device,
It is used for adjusting / replacement of the barlap adjusting device 6, for replacing the shafts 4a, 4b or for maintenance and inspection.

Reference numerals 11a and 11b denote rotary bearing rolls provided to face the round blades 3a and 3b with the threading line 1 interposed therebetween.
As shown in an enlarged view in FIG. 2, the circular blades 3a and 3b are supported by abutting against one side end plate surface of the slit material 12 while rotating.
Thus, when one side of the material to be slit 12 is slit, skewing, meandering, etc. are prevented and the material is run straight, that is, parallel to the surfaces of the round blades 3a, 3b.

If the rotary support rolls 11a and 11b are provided at the same axial intervals as the axes of the round blades 3a and 3b, the slit material 12 is more stable in the passage of the slit material 12 during the slitting and the passage of the thickness. Even if the plate speed changes for some reason, it can be run straight.

Further, when the rotary bearing rolls 11a and 11b are constituted by laber rolls, the conformability to contact with the material 12 to be slit is good. For example, the surface texture of the material 12 to be slit, the threading speed, etc. are some reason. Even if it changes in
Is passed straight through without meandering or skewing and is slit to a predetermined width.

13a. 13b is the rotary support roll 11
The a and 11b arbor shafts are provided with a flange 14 at the tip thereof.
Rotation support rolls 11a and 11b are attached to a and 14b. The arbor shafts 13a and 13b are rotated by a rotation driving device (not shown) to rotate the bearings 11a and 11b.
Comes into contact with the slit material 12 and rotates. Instead of the rotary drive device (not shown), the rotary blades 11a and 11b may be rotated by connecting the round blades 3a and 3b to the shafts 4a and 4b of the round blades by splines.

Reference numeral 15 denotes the rotary support rolls 11a and 11b.
It is used for adjusting the contact force of the rotary support rolls 11a and 11b with respect to the slit material 12, replacement, or inspection / maintenance.

Reference numeral 16 denotes a moving device, which is the rotary support roll 1
The devices 1a and 11b are moved forward and backward with respect to the cutting device 2 to a desired slit width, and can be moved in micron order. Reference numeral 17 is the movement drive device.

Reference numerals 18a and 18b denote side guides, which are provided in front of the cutting device 2 and the rotary support rolls 11a and 11b, and one or both of the side guides 18a and 18b are urged toward the inside of the threading line 1. A tool 19, for example, a spring, a fluid pressure cylinder or the like is connected to allow the slit material 12 to run parallel to the surfaces of the round blades 3a and 3b to prevent the plate width from varying in the one-sided slit. Reference numeral 20 is a roller provided in the side guides 18a and 18b.

The configuration is as described above, and the operation will be described below. When it is necessary to slit one slit from the material to be slit 12 with a predetermined plate width, the rotary support rolls 11a, 1
1b is moved by the moving device 16 so that the distance between the cutting device 2 and the round blades 3a and 3b is adjusted to a predetermined plate width. At this time, the threading line 1 is adjusted so that the non-slit side end surface 12e of the material 12 to be slit passes through the installation position of the rotary support rolls 11a and 11b.

After that, the slit material 12 is passed through, and only one side of the slit material 12 is slit by the round blades 3a and 3b. In the slit, the material 12 to be slit receives a skewing or meandering force because it is cut in one piece, but the side end surface 12e not slit is rotated bearing rolls 11a, 11
The force in directions other than the sheet passing direction is restrained by b, travels straight, and is slit to a predetermined plate width.

With this one-sided slitter, the plate thickness is 0.25 m.
m, sheet width 40 mm from sheet metal coil of width 200 mm
When slitting one strip at m, the plate width deviation of the obtained slit material was less than ± 20 μm, and it was proved that the plate width accuracy of the slit was excellent.

Further, the side guides 18a and 18b are provided in front of the cutting device 2 and the rotary support rolls 11a and 11b, and the slit material 12 is guided and passed through the circular blade 3
If one side is cut by a and 3b, the plate width accuracy of the slit is further improved.

[0025]

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.

[Brief description of drawings]

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

FIG. 2 is a view showing a round blade and a rotary support roller according to an embodiment of the present invention.
FIG.

[Explanation of symbols]

 1 Passing Line 2 Cutting Device 3a, 3b Round Blade 4a, 4b Over Shaft 5a, 5b Flange 6 Overlap Adjusting Device 7 Housing 8 Rotation Drive Device 9 Rotation Converter 10 Aver Shaft Vertical Moving Device 11a , 11b Rotation support roll 12 Slit material 13a, 13b Aber shaft 14a, 14b Flange 15 Aber shaft up-and-down moving device 16 Moving device 17 Moving drive device 18a, 18b Side guide 19 Biasing device 20 Roll La

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kiyo Matsunaga 2-10-1 Komine, Hachimansai-ku, Kitakyushu City Mitsui High-Tech Co., Ltd.

Claims (4)

[Claims] 1. A cutting device having a pair of round blades is provided on one side of a threading line for a material to be slitter, and a rotary bearing roll contacting the material to be slit is provided on the other side. One-sided slitter. 2. A rotary bearing which is provided with a cutting device provided with a pair of round blades on one side of a line for passing the material to be slitter and which is in contact with the slitter material on the other side in the same manner as between the axes of the round blades. A one-sided slitter characterized by having a roll. 3. The one-sided slitter according to claim 1 or 2, wherein said rotary support roll is a rubber roll. 4. A cutting device provided with a pair of round blades on one side with a line for passing the material to be slitter interposed therebetween, and a rotary support roll in contact with the material to be slitter provided on the other side. A one-sided slitter characterized in that a side guide is provided on the entrance side of the bearing roll, and a biasing member for advancing and retracting to the inside of the threading line is provided on one or both of the side guides.