JPH09225726A - Slitter machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep a material to be cut in a prescribed attitude when the material is cut by a slitter machine, and to prevent the material to be cut from being abraded. SOLUTION: Cutters 52, 62 and inter-cutter collars 55, 65 are provided on cutter shafts 41, 42. Inter-cutter belts 81, 82 are wound around the inter-cutter collars 55, 65 and a tension roll. The inter-cutter belts 81, 82 are formed mainly of an elastic material such as polyurethane elastomer, and perform endless traveling in the feeding direction of the material to be cut at the speed close to the peripheral speed of an outer circumferential part of the cutters 52, 62 as the cutters 52, 62 are rotated. The material cut by the cutters 52, 62 is fed from the cutters 52, 62 by the infer-cutter belts 81, 82 as the cutters 52, 62 are rotated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slitter machine used for continuously cutting a strip-shaped material with a predetermined width along the longitudinal direction.

[0002]

2. Description of the Related Art A known slitter machine includes a pair of upper and lower cutter units 1 and 2, as schematically shown in FIG. The cutter units 1 and 2 have a plurality of disc-shaped cutters 5 and 6 mounted on the cutter shafts 3 and 4,
By continuously feeding the strip-shaped material between the cutter units 1 and 2, the material is continuously sheared as the upper and lower cutters 5 and 6 rotate, and a plurality of cutting materials C vertically cut into a predetermined width are obtained. I am trying to get it. Reference numeral C'in FIG. 9 indicates a material scrap.

In the above slitter machine, when cutting a long material wound in a coil shape (coil material), the material wound in a material supply device (uncoiler) is continuously cut between the cutter units 1 and 2. Since the cutting material C can be supplied and can be wound by the winding device (recoiler) while giving an appropriate tension, the cutter units 1, 2
The posture of the cutting material C is relatively stable during the period. However, in the case of a short material that does not take the form of a coil, the posture of the cutting material C tends to be unstable, and cutting may not be performed well.

[0004]

Therefore, conventionally, a plate-like pressing member extending in the longitudinal direction of the cutting material is inserted between the cutter units as a means for keeping the short cutting material in a predetermined posture, and this pressing member is held. It was also considered to support the cutting material by members. However, when such a pressing member is used, the cutting material moves while sliding on the surface of the pressing member, so that the surface of the cutting material is scratched,
The product value was sometimes impaired.

Therefore, an object of the present invention is to provide a slitting machine which can maintain the posture of a cutting material when cutting the material with a cutter and can prevent the cutting material from being scratched.

[0006]

The slitting machine of the present invention, which has been developed to achieve the above object, has a first cutter which is rotatably mounted on a stand and parallel to each other, as described in claim 1. A shaft and a second cutter shaft,
A plurality of disc-shaped cutters provided on the first cutter shaft so as to be separated from each other in the axial direction thereof and rotating integrally with the cutter shaft, and between the cutters of the first cutter shaft and the cutter shaft. An inter-cutter collar that rotates integrally, a disk-shaped cutter that is provided on the second cutter shaft at a position corresponding to each cutter of the first cutter shaft, and that rotates integrally with the second cutter shaft, and the second An inter-cutter collar that is provided between the cutters of the cutter shaft and that rotates integrally with the second cutter shaft, a drive device that rotates the first cutter shaft and the second cutter shaft in the material feeding direction, and the first cutter. A tension roll provided outside the shaft and the second cutter shaft in parallel with the cutter shaft, and wrapped around the outer periphery of the collar between the tension roll and the cutter. Are provided with a cutter between the belts in contact with the material to be cut with endlessly traveling at a speed corresponding to the peripheral speed of the cutter peripheral portion have been. The belt between the cutters is made of an elastic material such as urethane. An elastic collar made of an elastic material such as urethane having an outer diameter substantially equal to that of the cutter may be provided between the cutter and the belt between the cutters.

In the slitting machine of the present invention, the first
When the cutter provided on the cutter shaft and the cutter provided on the second cutter shaft are rotated in the material feeding direction and the material is continuously fed between the upper and lower cutters, the material is continuously cut by the cutter. Since the cutting material is supported in a substantially horizontal posture by the belt between the cutters during cutting, it is possible to prevent the posture of the cutting material from being disturbed. Then, this cutting material comes out of the cutter as the belt between the cutters moves. Since the inter-cutter belt runs endlessly at a speed close to the peripheral speed of the outer peripheral portion of the cutter, it is possible to prevent the cutting material and the belt from rubbing against each other and to prevent the cutting material from being scratched.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. The slitter machine 10 shown in FIG. 3 includes a material supply unit 11 located on the right side of the drawing and a slitter body 12 located in the center.
And a cutting material receiving portion 13 located on the left side in the drawing, and a strip-shaped material, such as a metal plate, which is continuously inserted from the material supply portion 11 into the slitter body portion 12 has a predetermined width in the slitter body portion 12. Along with cutting (vertical cutting) into
The cut material (referred to as cutting material in this specification) is sent to the cutting material receiving portion 13 side.

The material supply unit 11 in the illustrated example is used when the material to be cut is a short material, and a flat table 15 on which the material is placed in a horizontal posture, and this table 15
Member 16 provided on the upper surface of the substrate along the material feeding direction
And so on. When the material to be cut is a long material wound in a coil shape, an uncoiler (not shown) that continuously sends the coiled material to the slitter body 12 is used instead of the table 15. .

The cutting material receiving portion 13 is provided with a flat table 20 as shown in FIG. 3 when the cutting material is short, a scrap bucket 21 for containing cutting chips, and the like, and cuts as needed. A guide roller or a conveyor for smoothly moving the material may be provided. When the cutting material is long and needs to be wound into a coil, instead of using the table 20, a ricoiler (not shown) for continuously winding the cutting material coming out of the slitter body 12 is cut. Install as much as the number of materials.

As shown in FIGS. 4 and 5, the slitter main body 12 includes a bed 30, a stand 31 provided on the bed 30, and a pair of upper and lower cutter units 32 and 33 provided on the stand 31. ing. The upper cutter unit 32 is held by a lifting mechanism 35 so as to be able to move up and down on the stand 31, and the distance between the cutter units 32 and 33 can be changed according to the plate thickness of the material or the like.

As shown in FIG. 1, the upper cutter unit 32 has a first cutter shaft 41. The lower cutter unit 33 includes a second cutter shaft 42 that is parallel to the first cutter shaft 41. These cutter shafts 41,
42 is a motor 45 with a reduction gear (shown in FIG. 5), a drive device 48 including a transmission mechanism 46, a gear mechanism 47, etc., and can be rotated in an interlocking relationship in the material feeding direction at the same peripheral speed. ing.

A reference collar 51 is attached to the first cutter shaft 41.
And a plurality of disc-shaped cutters 52 arranged apart from each other in the axial direction of the cutter shaft 41 according to the cutting width of the material,
Disc-shaped spacer 53 made of metal adjacent to each cutter 52
And a ring-shaped elastic collar 54 made of a rubber-like elastic material such as urethane elastomer provided on the outer periphery of the spacer 53.
And a short cylindrical metal inter-cutter collar 55 and the like provided between the spacers 53 are mounted. The elastic collar 54 has an outer diameter almost equal to that of the cutter 52, and plays a role of supporting the vicinity of the shear plane of the material substantially horizontally when the material is cut.

The cutter 52, the spacer 53, and the inter-cutter collar 55 have a through hole in the center thereof through which the cutter shaft 41 passes, and a key (not shown) fitted into a key groove 57 provided in the cutter shaft 41. Mutual rotation is stopped by each other, and a position in the axial direction is regulated by a nut 59 screwed to a male screw portion 58 provided on the cutter shaft 41. Therefore, the cutter 52 and the spacer 53
And the inter-cutter collar 55 rotates integrally with the cutter shaft 41.

A reference collar 61 is attached to the second cutter shaft 42.
And a plurality of disc-shaped cutters 62 arranged apart from each other in the axial direction of the cutter shaft 42, metal disc-shaped spacers 63 adjacent to each cutter 62, and provided on the outer periphery of the spacer 63. A ring-shaped elastic body collar 64 made of a rubber-like elastic material such as urethane elastomer, and each spacer 63
Short columnar metal inter-cutter collar 65 provided between
Are installed. These lower cutters 62 are
It is provided at a position corresponding to the upper cutter 52 so that the material can be sheared to a predetermined width by forming a pair with the upper cutter 52. These cutters 52 and 62 have an overlapping amount S where each blade edge is about half the plate thickness of the material (illustrated in FIG. 2).
Only the overlap can be done.

The elastic collar 64 has an outer diameter equivalent to that of the cutter 62 and plays a role of supporting the vicinity of the shear plane of the material substantially horizontally when the material is cut. The cutter 62, the spacer 63, and the inter-cutter collar 65 have a through hole at the center thereof through which the cutter shaft 42 passes, and are rotated by a key (not shown) fitted into a key groove 67 provided in the cutter shaft 42. It is stopped and its axial position is regulated by a nut 69 screwed to a male screw portion 68 provided on the cutter shaft 42. Therefore, the cutter 62, the spacer 63, and the inter-cutter collar 65 rotate integrally with the cutter shaft 42.

The first cutter shaft 41 and the second cutter shaft 42
Tension rolls 71, 72, 73, 74 parallel to the cutter shafts 41, 42 are provided in front of the. These tension rolls 71 to 74 are rotatably supported by brackets 75, 76, 77 and 78 provided on the stand 31.

An endless inter-cutter belt 81 is wound around the upper tension rolls 71 and 72 and the inter-cutter collar 55 in a state in which an appropriate tension is applied. The belt 81 is attached to the cutter 5 as the upper cutter 52 rotates.
No. 2 is designed to run endlessly in the material feeding direction at a speed close to the peripheral speed of the outer peripheral portion.

Further, the lower tension rolls 73, 74
An endless inter-cutter belt 82 is also wound around the inter-cutter collar 65 in a state in which an appropriate tension is applied. The belt 82 travels endlessly in the material feeding direction at a speed close to the peripheral speed of the outer peripheral portion of the cutter 62 as the lower cutter 62 rotates.

As shown in FIG. 5 and the like, brackets 75 and 78 supporting one of the tension rolls 71 and 74 are provided with height adjusting mechanisms 85 and 86. Tension roll 72,
By variably setting 73, the belt 81,
The tension of 82 can be adjusted.

The belts 81 and 82 are mainly made of an elastic material such as urethane elastomer having a rubber-like elasticity and a friction coefficient larger than that of metal. In order to increase the strength as required, A flexible core material such as fiber, cloth, net or metal mesh covered with the above elastic material is suitable.

Next, the operation of the slitter machine 10 having the above structure will be described. By rotating the cutter shafts 41 and 42 in the material feeding direction (direction of arrow F in FIGS. 6 and 7) and continuously supplying the material A between the cutter units 32 and 33, the material A is cut by the cutter 52. , 62. At that time, the vicinity of the shearing surface of the cutting material C is supported substantially horizontally by the elastic collars 54 and 64, and the portion between the elastic collars 54 and 64 is held in a substantially horizontal posture by the inter-cutter belts 81 and 82. To be done.

Since the elastic collars 54 and 64 and the inter-cutter belts 81 and 82 are both made of an elastic material, the compression direction (vertical direction) depends on the thickness of the material and the overlapping amount of the cutting edges of the cutters 52 and 62. It can be elastically deformed. Moreover, since the elastic collars 54, 64 and the inter-cutter belts 81, 82 move in the cutting material feeding direction at a speed close to the peripheral speed of the outer peripheral portions of the cutters 52, 62, the elastic collars 54, 64 and the inter-cutter belt 81. , 82
The cutting material is smoothly sent out in the direction of arrow F in FIG. Therefore, it is possible to avoid a speed difference between the inter-cutter belts 81 and 82 and the cut material, and prevent the cut material from being scratched.

The elastic collars 54, 64 can be omitted by extending both edges of the inter-cutter belts 81, 82 to near the cutters 52, 62. The number of cutters 52, 62 and the number of belts 81, 82 between the cutters are set according to the number of cutting materials, and needless to say, are not limited to the illustrated example.

In the embodiment shown in FIG. 8, at least a part of the lower inter-cutter belt 82 is extended substantially horizontally to the material insertion side to provide a belt extension portion 82a on which the material A can be placed. The belt extension 82a is supported while being tensioned by a tension roll 82b. Further, tension adjusting mechanisms 90 and 91 are provided so that the tensions of the inter-cutter belts 81 and 82 can be adjusted. An example of the tension adjusting mechanisms 90 and 91 is capable of adjusting the tension of the belts 81 and 82 by changing the positions of the tension rolls 71 and 73 by variably setting the screwing amounts of the adjusting screws 92 and 93.

If at least the lower inter-cutter belt 82 is provided with the belt extension 82a as in this embodiment, the material A is simply placed on the belt extension 82a and the cutters 52 and 62 are rotated. The material A can be automatically inserted between the cutter units 32 and 33. Other than that, the basic structure and operation are the same as those of the above-described embodiment (FIGS. 1 to 7).

[0027]

According to the present invention, the posture of the cutting material can be maintained by the inter-cutter belt provided in the vicinity of the cutter, and the cutting material can be smoothly sent out between the cutters by the belt, and the cutting material is scratched. It is also possible to prevent the occurrence of scratches. Also, when a belt extension is provided on the material insertion side, if the material is placed on the belt extension, the material can be inserted between the cutters as the cutter rotates, which is extremely effective especially for short materials. Is.

[Brief description of drawings]

FIG. 1 is a sectional view of a cutter unit of a slitter machine showing an embodiment of the present invention.

FIG. 2 is a sectional view of a part of the cutter unit shown in FIG.

3 is a side view of an entire slitter machine including the cutter unit shown in FIG.

4 is a side view of a slitter body of the slitter machine shown in FIG.

5 is a front view of a slitter body of the slitter machine shown in FIG.

6 is a perspective view schematically showing a part of the slitter machine shown in FIG.

FIG. 7 is a side view schematically showing a part of the slitter machine shown in FIG.

FIG. 8 is a cross-sectional view showing a modified example of a belt between cutters.

FIG. 9 is a front view schematically showing a part of a conventional slitter machine.

[Explanation of symbols]

 10 ... Slitting machine 31 ... Stand 41 ... First cutter shaft 42 ... Second cutter shaft 48 ... Drive device 52 ... Cutter 54 ... Elastic collar 55 ... Cutter collar 62 ... Cutter 64 ... Elastic collar 65 ... Cutter collar 71 , 72, 73, 74 ... Tension roll 81, 82 ... Cutter belt 82a ... Belt extension

Claims (2)

[Claims] 1. A first cutter shaft and a second cutter shaft rotatably and parallel to each other on a stand, and a plurality of cutter shafts provided on the first cutter shaft so as to be separated from each other in the axial direction thereof. A disc-shaped cutter that rotates integrally with the first cutter shaft, a collar between the cutters that is provided between the cutters of the first cutter shaft and that rotates integrally with the cutter shaft, and a second cutter shaft that has the first cutter shaft. A disc-shaped cutter that is provided at a position corresponding to each cutter and that rotates integrally with the second cutter shaft; and a second cutter shaft that is provided between each cutter of the second cutter shaft and
An inter-cutter collar that rotates integrally with the cutter shaft, a drive device that rotates the first cutter shaft and the second cutter shaft in the feed direction of the material, and these cutter shafts on the outside of the first cutter shaft and the second cutter shaft. A tension roll provided in parallel with the tension roll, and an inter-cutter belt that is wound around the outer circumference of the collar between the tension roll and the cutter and runs endlessly at a speed according to the peripheral speed of the outer circumference of the cutter and is in contact with the cutting material. A slitting machine comprising: 2. A part of the inter-cutter belt is provided with a belt extension extending to the material insertion side, and the material before cutting can be placed on the belt extension. The slitter machine according to Item 1.