JPH0644640Y2 - Perforation forming device for running seat belt - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention is used for rolling toilet rolls, towel papers and other papers to be rolled into a product, and sheet belts such as plastic films for winding and running. Relates to a device for forming perforations across the width of a sheet strip.

<Prior Art> Conventionally, in a winding machine that rewinds a sheet band, a rotating roller that traverses the sheet band in the path of the traveling sheet band and a sheet band passes between the stationary roller and the stationary roller are provided to face each other. Attaching a series of blades having a series of blades to the peripheral speed of the rotating roller,
At the peripheral speed of the stationary roller, attach one sheet of perforation blade having discontinuous teeth for making perforations, and direct the discontinuous teeth toward the peripheral side of the rotating roller to rotate the rotating roller at a predetermined peripheral speed. Every time the series of blades of the series of blades comes into contact with the discontinuous teeth of the perforation blade plate of the stationary roller by driving, the discontinuous teeth of the perforation blade plate are added to the sheet band running between the rollers. Had formed perforations corresponding to. The longitudinal spacing of the perforations of the sheet band is determined by the peripheral speed of the rotating roller.

<Problems to be solved by the invention> The perforation to be formed on the sheet band is determined according to the material and thickness of the sheet band, and the winding tension for winding the sheet band. The length of one tooth is made longer and the distance between the teeth is made narrower. In the case of toilet paper that is soft and easy to be torn, the length of one tooth of the perforation is made shorter and the distance between the teeth is made wider, which allows the winding It should prevent cutting into and allow the product to be comfortably shredded when used.

Since the conventional stationary roller has one perforated blade plate attached, for example, when changing the toilet paper band while engraving the perforation to change the towel paper band, It is necessary to replace the stationary roller with the eye blade plate with the stationary roller with the perforated blade plate of the towel paper, which is very troublesome and requires a long work interruption time. , The use efficiency of the winder has decreased.

<Means for Solving the Problems> The present invention was developed in order to solve the above-mentioned conventional problems, and the present invention has been developed in such a manner that the traveling seat belt traverses the seat belt and the seat belt passes between them. A rotary roller and a stationary roller are provided so as to face each other, a series of blade plates having a series of blades are attached to the peripheral side of the rotary roller, and discontinuous teeth for making separate perforations are provided on the peripheral side of the stationary roller. It is characterized in that a plurality of perforated blade plates are mounted separately in the circumferential direction, and the stationary roller is fixed so as to be rotationally adjustable.

<Embodiment> In the illustrated embodiment, 1 is a sheet band which is run in the direction of the arrow and is wound up, 2 and 3 are vertically opposed to each other, and a pair of rotating roller and stationary roller through which the sheet band 1 passes are defined. The rotating roller 2 is rotationally driven in the arrow direction at a predetermined peripheral speed by a motor and a transmission (not shown).

A series of blades 4 having a series of blades are radially attached to the rotary roller 2 in a detachable manner with screws or the like, and the series of blades 4 ′ project outward from the peripheral side of the rotary roller 2.

In this embodiment, the stationary roller 3 has a phase angle of 180 °.
Perforated blade plates 5 and 6 for making separate perforations are detachably attached by radial screws, respectively, and the discontinuous teeth 5'and 6'of each blade plate 5 and 6 are stationary rollers. 3 protrudes outward from the peripheral side.

The perforation blade 5 is for towel paper, for example, and the length of the tooth for one of the discontinuous teeth 5'is 5 mm, and the distance between the teeth is 2 mm. Further, the perforation blade 6 is for toilet paper, for example, and the length of the tooth for one of the discontinuous teeth 6'is 3 mm, and the distance between the teeth is 3 mm. The rotating roller 2 and the stationary roller 3 are erected and supported on the frame 7 of the sheet band winder, and the rotating roller 2 is rotationally driven by the motor as described above.

The stationary roller 3 has shafts 8 concentrically protruding shortly at both ends, and a collar 9 having a diameter larger than that of the shaft 8 is fixed to the outer end of each shaft 8 with screws or the like.

Further, the frame 7 is provided with a cylindrical support seat 10 which projects on the opposite surfaces of the frame 7 at a position where the stationary roller 3 is to be installed so as to project shortly and has an external thread on the outer circumference. The diameter of the support seats 10 facing each other is the same as that of the collar 9, and the facing distance of the support seats 10 is equal to the distance between the outer faces of the collars 9 and 9 at both ends of the stationary roller 3.

Therefore, the cap nut 11 that is screwed into the male screw on the outer periphery of the support seat 10.
Are fitted to the shafts 8 at both ends of the stationary roller 3, and the collars 9 are fixed to the outer ends of the shafts 8, respectively, and then the stationary rollers are horizontally hung up at intervals between the supporting seats 10, 10 facing each other on the frame. 9
Is opposed to the end surface of the support seat 10, the cap nut 11 is put on the support seat 10 and rotated, and is screwed into a male screw on the outer periphery of the support seat 10. Then, when processing the towel paper as the sheet band 1, the perforation blade plate 5 of the towel paper is directed upward, and the cap nuts 11 are tightened to the support seat 10, and the stationary roller 3 is supported.
Fix between 10 and 10. In this way, the towel paper is passed through between the rotary roller 2 and the stationary roller 3, and the rotary roller 2 is rotationally driven on a predetermined circumferential side, so that the series blade plate 4 and the perforation blade plate 5 form a towel paper. Has perforations corresponding to the teeth 5'of the perforation blade 5 at predetermined intervals in the running direction.

Next, when running toilet paper as a sheet band, loosen the tightening of each cap nut 11 and set the stationary roller to 180
It is sufficient that the stationary roller is fixed by rotating the rotary cutter so that the perforated blade plate 6 of the toilet paper is directed upward and tightening each cap nut again.

The rotation roller 2 is rotated, and the stationary roller 4 is more reliably prevented from rotating when the perforation blades 5 and 6 of the stationary roller come into contact with each other to make a perforation in the sheet band. When the cap nut 11 is completely tightened with respect to the male screw on the outer periphery of the support seat, a series of holes are placed in the support seat and the cap nut, opening in the diameter direction passing through the center of the support seat, and with a head. The pin 12 may be passed through the hole from above.

Further, when the stationary roller 3 is rotated and the perforated blade plates 5 and 6 face upward with respect to the series of blades 4 of the rotating roller in a predetermined state, they are pressed by the spring 13 incorporated in the support seat. Ball 14
If you place it so that it snaps into the recess 15 on the end face of the collar 9, you can position the stationary roller 3 at the position where the perforation blades 5 and 6 face upwards, and it is extremely easy to adjust the rotation of the stationary roller. become.

In the illustrated embodiment, two perforation blade plates 5 and 6 are attached to the stationary roller 3 at a phase of 180 °, but the number of perforation blade plates to be attached to the stationary roller is not limited to two, and three The number may be one or more.

The stationary roller fixing and rotation adjusting mechanism is a cap nut for tightening the stationary roller against the cylindrical support seat 10 of the frame.
Although shown in Fig. 11, it is possible to adopt any other suitable mechanism for this mechanism.

<Effect of the Invention> According to the present invention, the stationary roller is rotated each time the material and thickness of the traveling sheet band processed by the winder changes, and a plurality of perforation blades attached to the stationary roller are rotated. It is possible to select an optimum perforation blade plate from among the plates and to face the rotary roller so that perforations corresponding to the teeth of the perforation blade plate can be cut on the running sheet band.

Therefore, the labor for removing the stationary roller and replacing the stationary roller is remarkably reduced, the required time is shortened, and the operation efficiency of the winding machine is improved.

[Brief description of drawings]

1 is a vertical sectional side view, and FIG. 2 is a front view of FIG. 1 with a partial cross section. In the figure, 1 is a sheet band, 2 is a rotating roller, 3 is a stationary roller, 4 is a series of blade plates, and 5 and 6 are perforation blade plates.

Claims (1)

[Scope of utility model registration request] 1. A traveling roller is provided with a rotating roller, which crosses the sheet belt and passes between the sheet belt and a stationary roller, in the course of the traveling sheet belt, and a series of blades is provided on the circumferential side of the rotating roller. Is attached to the stationary roller, and a plurality of perforated blade plates having discontinuous teeth for making separate perforations are attached to the circumferential side of the stationary roller separately in the circumferential direction, and the stationary roller is rotationally adjusted. A perforation forming device for a running seat belt, which is fixed as much as possible.