JPH0631683A - Cut winding device for paper-state material - Google Patents

Abstract

PURPOSE:To provide a cut winding device for a paper-state material whereby a product yield rate can be improved without overlapping each end part of slit band-shaped paper by cutting the paper-state material slit while winding it. CONSTITUTION:A plurality of rotary rolls 4 are arranged such as coming into contact with a winding core roll 3 of a paper-state material 2 rotated to be driven by a rotating winding roll 1, to form a diameter of each rotary blade 7, interposed between these rotary rolls 4, a little larger than the diameter of the rotary roll 4, and also providing elastic units or cut grooves 8 in a peripheral surface of the winding core roll 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper-like cutting and winding device for slitting paper-like materials such as toilet paper, shoji paper, and plastic films while winding them.

[0002]

2. Description of the Related Art As a conventional method for slitting and winding a paper-like body as described above, the paper-like body is slit by passing between a rotating upper blade slitter knife and lower blade slit knife. A method of winding each strip of paper on a winding core roll is generally used.

That is, in the conventional method, the paper-like body is slit-cut and then wound around the paper tube, and the tension of each slit-like belt is unbalanced, and it is difficult to adjust the tension. There is a problem in that the product yield is reduced and productivity is poor, such as the ends of the band-shaped paper overlapping each other resulting in defective products. On the other hand, as a countermeasure for the above, there is also a method in which a paper-like body is wound into a roll shape and then cut into a predetermined length, but this is time-consuming and inconvenient.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art, and each end of the slit band-shaped paper is cut by slitting while winding the paper-shaped body. An object of the present invention is to provide a cutting and winding device for a paper-like body, which is capable of improving the product yield and the production efficiency without overlapping the parts.

[0005]

In order to achieve the above object, a paper-like material cutting and winding device of the present invention contacts a paper-like material take-up core roll which is rotated by a rotating rotary roll. As described above, a plurality of rotating rolls are arranged on the same axis, and the diameter of each rotary blade interposed between these rotating rolls is made slightly larger than the diameter of the rotating rolls, and on the peripheral surface of the winding core roll. It is configured by providing an elastic body or a kerf.

According to the paper-like material cutting and winding device having the above-mentioned structure, an elastic body such as rubber or a cut material is attached to the peripheral surface of the take-up core roll, which contacts the blade edge of the rotary blade for slitting the paper-like material. A groove is provided, and while winding on the winding core roll, the rotary blade cuts the paper-like body at the same time, so that the ends of the rolled-up paper-like body never overlap with each other. There is no need to adjust the tension between the strips.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of the essential parts of an embodiment of the paper-like material cutting and winding device of the present invention, and FIG. FIG. 3 is a front view showing the take-up core roll and the rotary blade, and FIG. 3 is a side view of essential parts showing a state in which the paper-like body is wound up on the take-up core roll shown in FIG.

First, as shown in FIG. 1, a take-up core roll 3 of a paper-like body 2 which is rotated by being contacted with two rotating rolls 1 which are rotated in a direction of arrow R by a drive device.
In addition, as shown in FIG. 2, a plurality of rotating rolls 4 that rotate while being in contact with each other are arranged in a freely rotating state on a rotating shaft 5 via bearings 6. Of course, the rotating roll 4 on the rotating shaft 5
May be integrally provided.

Next, the diameter of the rotary blade 7 fixed between the rotary rolls 4 and 4 and fixed to the rotary shaft 5 is made slightly larger than the diameter of the rotary roll 4.
The blade edge of No. 2 is projected from the peripheral surface of the rotating roll 4 by, for example, about 2 mm. Further, on the peripheral surface of the winding core roll 3, cut grooves 8 are provided at respective positions corresponding to the above rotary blades 7.

In the above embodiment, the winding core roll 3
Although the kerf 8 is provided on the peripheral surface of the above, the peripheral surface of the winding core roll 3 may be formed of an elastic body such as rubber. The paper-like body 2 transferred to the cutting and winding device configured as described above is
It is introduced between the two rotary rolls 1 and 1 and the winding core roll 3, and is wound around the winding core roll 3 and wound, but at the time of winding, it is faster than the transfer speed of the paper-like body 2. The rotary blade 7 rotating at a speed cuts the slit.

At the initial stage of winding the paper-like material 2 around the winding core roll 3, for example, 2 from the peripheral surface of the rotating roll 4.
Since the blade edge of the rotary blade 7 protruding by about mm is in the kerf 8 provided on the peripheral surface of the winding core roll 3, the blade edge is not consumed, and thereafter, the winding of the paper-like body 2 proceeds as shown in FIG. In the rolled-up state, the blade edge of the rotary blade 7 is between the end portions of the strip-shaped paper that has been slit away from the kerf 8, and wear of the blade edge is small,
The outer circumference of the roll-shaped paper-like body 2 is pressed by the rotating roll 4.

When the peripheral surface of the winding core roll 3 is formed of an elastic body such as rubber instead of the kerf 8, the peripheral surface of the cutting edge slightly digs into the peripheral surface of the elastic body. , When the cutting edge separates, the restoring force of the elastic body restores the original state. As described above, according to the apparatus of the present invention, the paper-like body 2 is slit and cut at the same time while being wound. Therefore, it is confirmed by experiments that the overlapping of the ends of the strip-shaped paper after slitting will never occur. It is complete and there is no need to adjust the tension of each strip as in the conventional case.

[0013]

As described above, according to the cutting and winding device for a paper-like material of the present invention, the paper-like material is slit while being wound, so that the ends of the band-shaped paper do not overlap each other. Since there is no imbalance in the tension between the strips and the roll is wound in a clean state, the yield of the products is significantly increased, and the productivity is improved.

Further, when the rotary blade provided on the upper portion slits the paper-like body, the blade edge does not come into contact with the metallic material, so that the blade edge is not worn down and can be used for a long time, and can be wound. The cutting speed can be increased, and productivity can be improved in this respect as well.

[Brief description of drawings]

FIG. 1 is a side view of a main part according to an embodiment of a paper-like material cutting and winding device of the present invention.

FIG. 2 is a front view showing the winding core roll and the rotary blade of FIG.

FIG. 3 is a side view of essential parts showing a state in which the paper-like body is wound on the winding core roll of FIG. 1 to be thickened.

[Explanation of symbols]

 1 rotating roll 2 paper-like body 3 winding core roll 4 rotating roll 5 rotating shaft 7 rotating blade 8 kerf

Claims (1)

[Claims] 1. A plurality of rotating rolls are arranged on the same axis so as to come into contact with a winding core roll of a paper-like body which is rotated by following the rotating rolls, and are respectively interposed between the plurality of rotating rolls. The diameter of each of the rotary blades is made slightly larger than the diameter of the rotary roll, and a paper-like material cutting and winding device having an elastic body or a kerf on the peripheral surface of the winding core roll.