JPH02262996A - Slitter device for belt like material - Google Patents

Abstract

PURPOSE:To maintain a constant blade contact state by providing a link device phase-linking each cutting edge post of a pair of blades, provided at the outside of a belt like material traveling zone and a split position adjusting device moving the link device in the width direction of the belt like material traveling zone and changing the split position by a pair of blades. CONSTITUTION:The cutting edge pots 18A, 18B of a pair of rotary blades 11A, 11B are moved in the width direction of a belt like material traveling zone together with a link device 17 under the operation of a feeding screw 41 as for a split position adjusting device simultaneously in the state of keeping a constant relative positional relation because of being phase-linked by the link device 17. The state of the contact of a pair of the rotary blades 11A, 11B is maintained irrespective of the change in the split width at its optimum state made in the initial assembly adjusting stage of a slitter device 10.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a slitter device for strip materials such as paper, nonwoven fabric, plastic film, metal foil, etc.

[Prior art 1] When trying to obtain a narrow strip material by continuously cutting off the ends of a strip material or cutting the strip material at a desired position in the width direction, cutting off the ends of the strip material or cutting the strip material at a desired position in the width direction is necessary. A slitter device is used that cuts the strip material using a pair of blades arranged in the slitter.

Incidentally, in a conventional slitter device, each of the blade turrets of the pair of blades is set to be able to move independently of each other in the width direction of the belt-like material traveling region on both sides of the belt-like material traveling region. Therefore, when changing the cutting width, it is necessary to move the set positions of the double turrets individually.

[Problems to be Solved by the Invention] However, when changing the slitting width, when moving the double turrets individually as in the conventional slitter device described above,
There is an error in the amount of movement between the two.

Therefore, the contact state of the pair of blades, which was appropriate before the cutting width was changed, is not reproduced after the tool post is moved and becomes defective. Therefore, every time the cutting width is changed, it is necessary to readjust the contact state of the pair of blades, which is a complicated task.

An object of the present invention is to be able to change the cutting width while maintaining a constant blade contact state between a pair of blades.

[Means for Solving the Problems] The present invention provides a strip material slitter device that slits a strip material with a pair of blades arranged on both sides of a strip material running region, which is provided outside the strip material running region, and has the above-mentioned blades. It has a connecting device that connects the respective tool rests of the pair of blades, and a cutting position N adjustment device that moves the connecting device in the width direction of the strip material running area and changes the cutting position by the pair of blades. It was designed to be configured as follows.

[Function] According to the present invention, the pair of blade turrets are connected to each other by the connecting device, so that they maintain a constant relative positional relationship and simultaneously operate together with the connecting device under the operation of the cutting position adjusting device. The strip material is moved in the width direction of the running area. For this reason,
The proper state of contact between the pair of blades, which was established during the initial assembly and adjustment stage of the slitter device, is maintained regardless of changes in the cutting width.

That is, the cutting width can be changed while maintaining a constant blade contact state between the pair of blades. Therefore, there is no need to readjust the contact state of the pair of blades every time the cutting width is changed, and productivity can be improved.

[Example] Figure 1 is a front view schematically showing an example of the present invention, and Figure 2 is a front view schematically showing an example of the present invention.
The figure is a plan view of Fig. 1, Fig. 3 is a side view of Fig. 1, Fig. 4 is an enlarged view of the main part of Fig. 1, and Fig. 5 is a view taken along the arrow-v line of Fig. 3. be.

As shown in FIGS. 1 and 2, the three-way blade device IO is an example having three pairs of upper and lower rotary blades 11A and 1IB,
Upper and lower rotary blades 11A and IIB are arranged on both sides of a belt-shaped material travel area defined inside a machine frame 12 to cut the belt-shaped material 13.

The slitter device M10 has three pairs of upper and lower connecting rods 14A and 14B arranged in parallel at three positions along the running direction of the strip material on the upper and lower sides of the strip running area of the machine frame 12, respectively. The upper and lower connecting rods 14A and 14B extend in the width direction of the belt-shaped material traveling area, and are connected to bearing portions 15A and 1 provided in the machine frame 12.
5B and are connected to each other by a connecting arm 16 at their end portions that are located laterally outside the strip running area. The connecting rows 14A, 14B and the connecting arm 16, which are connected in phase and integrated, are connected to the connecting device 1.
form 7. At this time, the slitter device IO will be equipped with three sets of coupling devices 17.

At the ends of the upper and lower connecting rods 14A and 14B located in the machine frame 12 of each connecting device 17, a pair of rotary blades 11A and 1
The respective tool rests 18A and 18B of IB are fixed and interconnected. The connecting rods 14A and 14B that pass through the uncompatible tool holders 18A and 18B pass through bearings 19A and 19B provided in the uncompatible turrets 18A and 18B (Figs. 1 and 2). (see figure).

As shown in FIGS. 3 and 4, each of the tool rests 18A and 18B is slidable via a slide device 21 on upper and lower guide rails 20A and 20B provided in the machine frame 12 in the width direction of the strip running area. A lock cylinder 22 is supported and press-contacted to the machine frame 12 to lock the free movement of the tool rests 18A and 18B.

At this time, as shown in FIG. 1, upper and lower spline shafts 23A and 23B extending in the width direction of the strip material running area are disposed at the L12 position sandwiching the strip material running area in the machine frame 12. At the ends of the spline shafts 23A and 23B that pass through the bearings 24A and 24B provided in the
25B is fixed, and the rotational force of the upper and lower rotary blade drive motors 27A, 27B is applied to the pulleys 25A, 25B.
29B.

Each spline shaft 23A, 23B corresponds to each tool rest 18A, 18
B, and around the spline shafts 23A and 23B of each tool rest 18A and 18B are swinging brackets) 30A,
30B is swingably arranged. 31A, 31B are tool rests 18A, 18B and swing brackets) 30A, 30B
The swing cylinders 32A and 32B provided between the two are stoppers for regulating the backward position of the swing cylinders 31A and 31B. The swing brackets 3oA and 30B have bearing stands 33A and 3
3B is fixed, and the rotary blade 11 is fixed to the bearing stands 33A and 33B.
Main shafts 34A and 34B of A and 11B are supported. Pulleys 35A and 35B are fixed to the main shafts 34A and 34B, and pulleys 35A and 35B are also fixed to the aforementioned spline shafts 23A and 23B.
6A.

36B is fixed, and both are connected by belts 37A and 37B. As a result, the pair of rotary blades 11A, l
The IB can be rotated by the rotational force of the rotary blade drive motors 27A and 27B. Incidentally, the motors 27A, 27B and the spline shafts 23A, 23B are common to all three sets of rotary blades 11A, 11B.

In each tool rest 18A, 18B, a pair of rotary blades 11A
, llB blades are ■oscillating cylinders 31A, 31B
By adjusting the setting positions of the tool rests 18A and 18B, which are determined by adjusting the retreat position regulating stoppers 32A and 32B, the relative positions of the two rotary blades 11A and IIB in the diametrical direction can be adjusted, and the blades can be slid onto the bearing rest 33B. By adjusting the setting position of the provided rotary blade moving cylinder 37 by adjusting the adjustment screw 38 screwed into the bearing stand 33B, and adjusting the forward position of the rotary blade moving cylinder 37, the rotary blade 1
The contact pressure of the rotary blade 11B with respect to 1A can be adjusted. For reasons described later, it is sufficient to perform the blade contact adjustment operations (1) and (2) above only at the initial assembly and adjustment stage of the device.

In addition, the bearing stand 33B has a swing bracket (30B) shown in FIG.
connected via a pivot shaft 39 as shown in FIG.
After being rotated to a predetermined position around the pivot shaft 39, it is fixed. Thereby, the rotary blade 11B supported by the bearing stand 33B is swung relative to the rotary blade 11A, and the cutting quality can be improved by, for example, achieving a one-point contact state between the rotary blade 11A and the rotary blade 11B.

Furthermore, as shown in FIGS. 1 and 2, the slitter device M10 has feed screws 41 set at three positions on the outside of the machine frame 12, corresponding to each of the coupling devices M17. The feed screw 41 constitutes a cutting position adjustment device, is supported by a bearing part 42, and is connected to a pulley 43 and a belt 4.
4. The rotational force of the cutting position adjustment motor 46 is transmitted via the pulley 45. That is, the feed screw 41 is rotated by the cutting position adjustment motor 46 to move the connecting device 17 in the width direction of the strip running area, and the connecting rod 14 of the connecting device 17 is rotated by the cutting position adjustment motor 46.
Rotary blade 11 of tool rest 18A, 18B fixed to A, 14B
It is possible to change the cutting position according to A and 11B. The amount of rotation of the feed screw 41 is detected by a rotary encoder 47, and a control device (not shown) that obtains a detection signal from the encoder 47 calculates the current position of each rotary blade 11A, IIB, and places each rotary blade at an appropriate cutting position. The cutting position adjustment motor 46 is controlled to set the rotary blades 11A and IIB.

Next, the operation of the above embodiment will be explained.

According to the above embodiment, the turrets 18A and 18B of the pair of rotary blades 11A and 11B are connected! 117, so that a constant relative positional relationship is maintained, and at the same time, they are moved together with the connecting device 17 in the width direction of the strip running area under the operation of the feed screw 41 as a cutting position adjusting device. Therefore, the proper state of contact between the pair of rotary blades 11A and 11B, which was established during the initial assembly and adjustment stage of the slitter device 10, is maintained regardless of changes in the cutting width.

That is, the cutting width can be changed while maintaining a constant blade contact state between the pair of rotary blades 11A and 11B. Therefore,
There is no need to readjust the blade contact condition of the pair of rotary blades 11A and IIB every time the cutting width is changed, and productivity can be improved.

In addition, in the above embodiment, the pair of rotary blades 11A, IIB
The drive motor may be shared by one unit by using a timing belt.

Further, in carrying out the present invention, the cutting and cutting position adjusting device may be manually operated by an operator.

[Effects of the Invention] As described above, according to the present invention, the cutting width can be changed while maintaining a constant blade contact state between a pair of blades.

[Brief explanation of drawings]

Fig. 1 is a front view schematically showing an embodiment of the uninvented invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a side view of Fig. 1, and Fig. 4 is a side view of Fig. 1.
The figure is an enlarged view of the main part of Figure 19, and Figure 5 is the V-VM of Figure 3.
FIG. 10... Slitter device 11A, IIB... Rotating blade (blade), 13... Strip material, 14A114B... Connecting rod. 16... Connection arm, 17... Connection device, 18A, 18B... Turret, 27A, 27B... Rotary blade drive motor, 41... Feed screw (cutting position adjustment device N). Agent Patent Attorney Osamu Shiokawa Figure 3

Claims (1)

[Claims] (1) In a strip material slitter device that cuts strip materials using a pair of blades arranged on both sides of a strip material running area, the tool rests of the pair of blades are connected to each other by being installed outside the strip material running area. A slitting device for strip material, comprising: a coupling device for moving the coupling device in the width direction of a strip material running area, and a cutting position adjusting device capable of changing the cutting position by the pair of blades.