JP2000218591A - Round slicer device for wound object - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a round slicer device for a wound object capable of improving productivity. SOLUTION: This round slicer device 1 for a wound object, having a chuck part 3 capable of clamping one end of a winding core 2 for rotating the wound object R around its shaft and a roller supporter 4 supporting the other end side of the wound object R, cuts off the wound object R fed out to the other end side in this another end side to successively cut out a round sliced object. Here, the roller supporter 4 can be moved in axial direction of the wound object R, and a supporter moving implement 5, which can adjust a supporting space length from the chuck part 3 to the roller supporter 4, is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll cutting device for a roll that can improve productivity.

[0002]

2. Description of the Related Art When manufacturing an adhesive tape, for example, an adhesive is applied to one surface of a wide tape base material, and the tape is wound into a fixed length by a winder. The cutting device cuts the pieces into small pieces. FIG. 5 shows a schematic diagram of a cutting device. The cutting device includes a chuck c that can hold one end of a winding core b of a roll a and rotate the roll a around its axis. A roller support e for supporting the other end of the wound material a, and a cutter f capable of cutting the wound material a from the other end side.

[0003] The chuck portion b can move in the axial direction while holding the wound material a. Thereby, the wound material a is sent out to the cutter f side by a predetermined amount. As the roller support e, as shown in FIG. 6, a pair of receiving rollers e1 and e2 for supporting the wound material from below is employed. The receiving rollers e1 and e2 are rotatably supported by a bracket g and the like, and suppress a rotational runout of the rotating rolled object a. Further, the cutter f can move repeatedly, for example, up and down, move down and abut on the rotating rolled material a, and can cut a strip i of a predetermined width from the rolled material. Note that while the cutter f is being lifted, the wound material a is fed out by a predetermined amount, and thereafter, is moved downward again to perform cutting. By repeating such a process, a plurality of slices are obtained from one roll a.

[0004]

The roller support e is usually fixed and located near the cutter f. Therefore, the wound material a is substantially supported at both ends. For this reason, in the initial stage of the cutting operation, the length L between the supports from the chuck portion b to the roller support e tends to be large, and the effect of suppressing the rotational vibration of the roll a is not sufficient. . Therefore, there is a limit in improving the productivity by increasing the rotation speed of the roll a and the descending speed of the cutter f.

The present invention has been devised in view of the above-described problems. The present invention makes it possible to move the roller support in the axial direction of the material to be wound, and to provide a support between the chuck portion and the roller support. Based on the provision of a support mover whose length can be adjusted, it is possible to increase the rotation speed while reducing the run-out of the rotating roll, and thereby increase the productivity by increasing the lowering speed of the cutter. It is an object of the present invention to provide a device for cutting a roll of a roll.

[0006]

According to a first aspect of the present invention, there is provided a chuck portion capable of gripping one end of a core of a wound material and rotating the wound material around its axis, And a roller support for supporting the other end of the material, and the wound material delivered to the other end is cut at the other end, and a roll is sequentially cut from the other end. A wheel cutting device, comprising: a support moving device capable of moving the roller support in the axial direction of the rolled material and adjusting a distance between supports from the chuck portion to the roller support. Features.

Generally, a shaft whose both ends are supported in the horizontal direction is bent, and when this shaft rotates, a rotational vibration occurs. This run-out increases as the rotational speed increases, and in many cases, when it matches the natural frequency of the lateral vibration of the system, the rotating shaft becomes extremely unstable. Such a resonance point is also referred to as a critical speed of the rotating shaft, and in the wheel cutting device of the present invention as well, the rotational speed of the wound material must be set lower than the critical speed.

On the other hand, in order to increase the productivity of the above-described wheel cutting device, it is effective to increase the descending speed of the cutter. For this purpose, the cutting speed must be increased unless the rotational speed of the wound material is also increased. There are problems such as roughening of the surface.

By the way, in order to increase the rotation speed of the wound material, the above-mentioned critical speed may be shifted to a higher speed side. In order to shift the critical speed to the high speed side, it is effective to reduce the length L between the supports. That is, the shaft weight of the shaft supported at both ends is reduced, and the centrifugal force that causes runout can be reduced. In the present invention, since the length L between the supports is adjustable, for example, at an early stage of the cutting operation, the roller support can be arranged closer to the chuck portion side. Thereby, the length L between supports can be made relatively small as compared with the related art, and the rotation speed can be increased while reducing the run-out of the wound material.

The support moving tool comprises, for example, a rail arranged in parallel with the axial direction of the rolled material, and a moving table which runs on the rail and on which the roller support is provided.
The roller support has a pair of receiving rollers arranged below the wound material and parallel to the axial center line and on both sides of the center line, and raises the receiving rollers together to raise the receiving rollers at the same height. It is preferable to include a roller height adjusting means for making contact with the lower surface of the roll.

The roller height adjusting means includes a pair of swinging arms that rotatably support the receiving roller at one end and the other end pivotally connected to the movable table, and a pair of swinging arms at the other end of the swinging arm. It is desirable to include a pair of pinions each having the same pitch circle diameter that are fixed and mesh with each other, and driving means for driving one of the pinions.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a wheel cutting device 1 of the present embodiment.
FIG. In FIG.
Is a chuck portion 3 that can grip one end of the winding core 2 of the wound material R and rotates the wound material around its axis, a roller support 3 that supports the other end of the wound material R, Cutting means C which can cut the rolled material R at the other end and sequentially cut out the sliced material from the other end.

The wound material R is, for example, an adhesive tape wound on a core made of paper or the like by a predetermined winder at a fixed length, and is held by a gripper of the chuck portion 3 by a lifter, a crane, or the like. 3
a, and one end thereof is gripped. The grip 3a is connected to the spindle 3b. The rotational force of the drive motor M1 is transmitted to the spindle 3b via a belt or the like. The end of the spindle 3b opposite to the grip 3a is rotatably supported by the moving stage 3c.

The moving stage 3c can move smoothly along guide means 3d extending in the axial direction of the roll R. The chuck 3 has a ball nut (not shown), which meshes with a screw shaft 15 driven by a drive motor M2. Therefore, the chuck 3
Can grip one end of the winding core 2 of the wound material R, rotate it around its axis, and send out the wound material R in the axial direction by a predetermined amount.

In the present embodiment, the roller support 4 is shown in FIG.
As shown in FIG. 4, it includes a pair of rotatable receiving rollers 4a and 4b disposed below the wound material R and parallel to the axial center line and on both sides of the center line. For this reason, the rotating rolled material R can be suitably supported.

The cutting means C is arranged at the other end of the roll R. In this example, the cutting means C moves up and down along the guide G by expansion and contraction of the cylinder S1, and can cut the roll R by lowering. It has a cutter 16. It goes without saying that various cutters such as a flat blade and a saw blade can be used as the cutter 16. In the vicinity of the cutter 16, a belt conveyor 17 and a roller conveyor 19 for transporting the sliced pieces are provided.
Etc. can be attached.

The chuck 3 is provided with a cutter 16.
By adjusting the amount of the rolled material R to be sent out, the thickness of the sliced product can be appropriately adjusted.

In the present embodiment, the wheel cutting device 1 is used.
Is a movement of the support member that enables the roller support member 4 to move in the axial direction of the rolled material R and that can adjust the distance L (see FIG. 2) between the chuck portion 3 and the roller support member 4. Tool 5
Is one of the features.

As a result, it is possible to move the roller support 4 appropriately, thereby reducing the length L between supports.
For example, as shown in FIG. 2A, in the initial stage of the cutting operation in which the length of the rolled material R is large, it is preferable to arrange the roller support 4 closer to the chuck portion 3 than in the related art. Thereby, the length L between supports can be made relatively small as compared with the related art. This can shift the dangerous speed of the wound material R to a higher speed side, and thus helps to further increase the rotation speed while reducing the run-out of the wound material R.

In this connection, the lowering speed of the cutter 16 can be increased, so that the cutting efficiency can be increased and the productivity of cutting can be improved. In the meantime, for a while from the initial stage of the cutting to a time when the chuck portion 3 and the roller support 4 are close to each other, for example, only the chuck portion 3 is sent out and the cutting is sequentially repeated. Can be fixed.

As shown in FIG. 2B, as the cutting operation progresses, the length of the rolled material R becomes smaller, and the chuck portion 3 approaches the roller support 4. In this case, as shown in FIG. 2 (C), by controlling the support moving device 5 so that the chuck portion 3 and the roller support 4 are sent out integrally in the axial direction of the roll R thereafter. Thus, it is possible to cut smoothly to the end without collision between the chuck portion 3 and the roller support 4.

As described above, according to the present invention, the support R is provided on the side opposite to the chuck 3 so as to move the roller support 4 for supporting the roll R, so that the run-out of the roll R can be improved. It is possible to increase the rotation speed while reducing the power consumption, thereby improving the productivity.

In the present embodiment, as shown in FIG. 3, the support moving device 5 includes a rail 6 arranged in parallel with the axial direction of the roll R, and An example is shown in which the movable base 7 is provided with the support 4.
Further, the moving table 7 includes an actuator 20 such as a cylinder as a driving source for traveling on the rail 6, a bearing 21 guided by the rail 6, and the like. Further, in this example, the rail 6 is illustrated as being fixed to a frame member 22 that is horizontally mounted on a frame member 23 of the wheel cutting device 1.

The roller support 4 raises the receiving rollers 4a and 4b together and raises the receiving rollers 4a and 4b.
And a roller height adjusting means 9 for abutting the lower surface of the wound material R at the same height. Thereby, for example, as shown in FIG.
Even with R ′, the center of the axis can always be held at a fixed position, which is preferable in that the versatility of the apparatus can be enhanced.

In this embodiment, the roller height adjusting means 9 is used.
Is a bracket B having one end rotatably supporting the receiving rollers 4a and 4b and the other end disposed on the moving table 7.
A pair of oscillating arms 10a, 10b pivotally attached to the oscillating arm, a pair of pinions 11a, 11b having the same pitch circle diameter fixed to and engaged with the other ends of the oscillating arms 10a, 10b, respectively; 11b
And a driving unit 12 that rotationally drives one of them.

In the present embodiment, the driving means 12 comprises a pinion 13 integrally fixed to a shaft 27 for fixing one of the pinions 11a with a key or the like, and this pinion 13
And a rack 25 slidably arranged on the movable table 7 and an actuator 26 such as a cylinder for pushing and pulling the rack 25 to slide the rack 25.

When adjusting the height of the receiving rollers 4a and 4b, the actuator 26 is driven and the rack 25 is slid by a predetermined amount. The movement of this rack
The pinion 13 is rotated together with the shaft 27. Shaft 27
, The pinion 11a rotates, and the swing arm 1
Oa is swung, and the height of the receiving roller 4a changes. Further, the rotation of the pinion 11a causes the pinion 11b to rotate in the opposite direction, and can hold the receiving roller 4b in the opposite direction and at the same height as the receiving roller 4a. As described above, since the roller height adjusting means 9 of the present example does not need to raise and lower the moving table 7, it is preferable in that a small actuator or the like can be used as the actuator 26 and the apparatus can be simplified.

Although the embodiment of the present invention has been described in detail, it is also preferable to simultaneously cut a plurality of rolls R by, for example, providing the chuck portion 3 in parallel. In addition, the example in which the adhesive tape is used for the roll R is illustrated, but the present invention is not limited to this and can be applied to various rolls. As described above, the present invention is not limited to the above embodiments, and can be implemented by replacing individual components in various modes.

[0029]

As described above, the wheel cutting device of the present invention
The roller support can be moved in the axial direction of the wound material, and a support moving device that can adjust the length of the support from the chuck portion to the support roller is provided. The speed can be increased, and the productivity can be greatly improved, such as by increasing the cutting speed of the cutter to increase the cutting efficiency of the round slice.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIGS. 2A to 2C are operation diagrams for explaining the operation of the present invention.

FIG. 3 is a perspective view schematically showing the roller support.

FIG. 4 is a diagram illustrating the operation.

FIG. 5 is a diagram illustrating a conventional technique.

FIG. 6 is a diagram schematically showing the roller support.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wheel cutting device 2 Core 3 Chuck 4 Roller support 5 Support moving tool C Cutter R Rewind

Claims (3)

[Claims] A chuck that can grip one end of a winding core of the roll and rotate the roll about its axis, and a roller support that supports the other end of the roll; A roll cutting device for cutting the roll to be delivered to the other end, cutting the roll at the other end, and sequentially cutting the roll from the other end; A roll cutting device for a roll, comprising: a support moving device capable of moving in the axial direction and capable of adjusting a distance between supports from the chuck portion to the roller support. 2. The apparatus according to claim 1, wherein the support moving tool comprises a rail arranged in parallel with the axial direction of the rolled material, and a moving table running on the rail and provided with the roller support. The body comprises a pair of receiving rollers disposed below the wound material, parallel to the center line in the axial direction, and on both sides of the center line, raising the receiving rollers together, and lowering the receiving rollers at the same height with the lower surface of the wound material. 2. The apparatus according to claim 1, further comprising a roller height adjusting means for contacting the roll. 3. The roller height adjusting means includes: a pair of swinging arms that rotatably support the receiving roller at one end and the other end pivotally attached to the movable table; and the other end of the swinging arm. 3. The apparatus according to claim 2, further comprising: a pair of pinions having the same pitch circle diameter fixed to each other and meshing with each other, and driving means for driving one of the pinions.