JP2003310475A - Coreless toilet paper, and method and device for manufacturing that - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a method and device for easily manufacturing coreless toilet paper having desirable softness. <P>SOLUTION: The coreless toilet paper manufacturing method and device applies water or a glue to toilet paper that just has been taken up when the toilet paper 1 is taken up by a take-up shaft 3 surrounded by two take-up rollers 2 and 2' and one rider roller 4 and subsequently separates the rider roller 4, and softly takes up the toilet paper 1 onto the take-up shaft 3. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tubular paperboard coreless toilet paper, a method for manufacturing the same, and an apparatus for the same.

[0002]

2. Description of the Prior Art Conventionally, coreless toilet paper is wound around a take-up roller which rotates on a take-up roller, in which case the rider roller is always placed directly on the take-up shaft. The weight of the rider roller directly acts on the toilet paper to rotate it tightly, and the toilet paper is tightly wound, which causes the toilet paper to be in a tensioned state, resulting in poor usability and giving the impression of cheap toilet paper. It had the drawback of leaning back.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in order to overcome the drawbacks of the prior art, and is a method for producing a coreless toilet paper which can easily obtain a desired toilet paper. In the place of getting the equipment.

[0004]

SUMMARY OF THE INVENTION The present invention is directed to a coreless toilet paper and method and apparatus for making the same, wherein the coreless toilet paper itself is a surface close to the central space of the coreless toilet paper. Is wound with water or glue and the other part is wound to a desired softness. The manufacturing method is to wind a toilet paper on a winding shaft surrounded by two winding rollers and one rider roller. At the time of winding, it consists of a method of manufacturing a coreless toilet paper in which water or glue is attached to the toilet paper at the beginning of winding, and then the rider roller is released to softly wind the toilet paper around the winding shaft, and in that case, While winding the toilet paper on the take-up shaft, adjust the weight acting on the take-up shaft, The toilet paper was wound on the shaft takes, in which so as to cut into individual toilet paper while retaining strong toilet paper from the inside of toilet paper by a winding shaft.

Further, in the manufacturing apparatus, a take-up shaft is located between two take-up rollers and one rider roller, and a nozzle for ejecting water or glue toward the toilet paper toward the take-up rollers is arranged. It consists of a coreless toilet paper manufacturing device in which the rider roller can be freely moved in and out of the take-up shaft. Further, a device for applying a force for adjusting the weight acting on the take-up shaft to the take-up shaft is attached, or the toilet paper is attached. The end of the take-up shaft that has been wound up is configured to be expandable and contractible, and a device for cutting while firmly holding the inner surface of the toilet paper in the expanded state is a coreless toilet paper provided after the coreless toilet paper device described above. It consists of PA manufacturing equipment.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, as shown in FIGS. 1 and 2, two winding rollers 2 and 2'are mounted in contact with each other, and a winding shaft 3 is mounted between them. Rider roller 4 is on it.

Therefore, first, the wide toilet paper 1 is taken up from the direction of the arrow A in FIG.
And the leading end of the toilet paper 1 is rewound between the rider roller 4 and the winding shaft 3. By rotating the take-up rollers 2 and 2'in that state, the rotation of the take-up rollers 2 and 2'is transmitted to the take-up shaft 3, and the weight of the rider roller 4 acts as a pressing force from above and the toilet paper 1 Begins to wind around the winding shaft 3.

At the same time, that is, in order to wind a little tightly in the vicinity of the surface of the toilet paper 1 at the beginning of winding which faces the central space, for example, water or glue (hereinafter abbreviated as water) is applied over a portion corresponding to a length of about 2 m. Is sprayed from the spray gun 5. Thus, by hardening the winding start portion with water, it is possible to apply the shape-retaining force to the surface of the toilet paper 1 close to the central space.

Then, the injection of water is stopped and the winding shaft 3
The rider roller 4 rolling while pressing the toilet paper 1 being wound on the upper side is separated upward from the toilet paper 1 wound on the winding shaft 3 and thereby wound on the winding shaft 3. It is not necessary to press the toilet paper to be scraped from above by the rider roller 4, and as a result, the toilet paper 1 wound on the winding shaft 3 is softly wound.

In this case, the method of separating the rider roller 4 is to move the piston in the rider roller elevating cylinder 6 upward by hydraulic pressure or compressed air to move the operating body 7 upward, that is, in the direction of arrow B. As a result, the rider roller 4 is separated from the toilet paper on the winding shaft 3.

Further, in order to wind the toilet paper 1 wound on the winding shaft 3 more softly and with uniform softness, a winding shaft cancel cylinder (hereinafter referred to as a cancel cylinder) 7 is provided from below. Let it work. This is because the weight of the wound toilet paper 1 is gradually increased as the toilet paper 1 is wound around the winding shaft 3, and the weight of the toilet paper 1 on the winding shaft 3 is prevented from being tightly wound around the winding shaft 3. Then, the increased weight is made to act from the lower side by the cancel cylinder 7 so as to lift the take-up shaft 3, and the increased weight of the toilet paper wound on the take-up shaft 3 is canceled.

Thus, the toilet paper roll 10 having suitable and uniform softness can be obtained by separating the rider roller 4 and the action of the cancel cylinder 7 from below.

As shown in FIG. 2, the toilet paper 1 is first wound on the winding shaft 3 as described above, and the rider roller 4 is separated upward in the direction of the arrow B when the spraying of water from the spray gun 5 is completed. Shows a state in which the toilet paper is wound on the winding shaft 3, and when the winding is finished as it is, the toilet paper roll 10 in a state in which the toilet paper 1 is wound on the winding shaft 3 is conveyed in the direction of arrow C. The toilet paper roll 10 wound around the carried winding shaft 3 moves down the cutter lifting cylinder 8 located above, and the cutter 9 cuts the paper of the toilet paper roll 10. Then, the cut end portion of the toilet paper 1 is blown back by the air from the air blowing body 11 and the end portion is wound around the succeeding winding shaft 3 arranged subsequently, and the same process as described above is performed. Repeated.

The toilet paper roll 10 thus cut is further moved to the right in FIG.
Toilet paper roll 1 previously cut by 8
The cut end surface of 0 is bonded and temporarily fixed to the other surface of the toilet paper roll 10.

Next, FIG. 3 is a side view of FIGS. 1 and 2, in which the shaft 17 of the rider roller 4 is moved upward by the piston of the rider roller elevating cylinder 6 as shown in FIGS. As shown, it is possible to move up and down, thereby pressing and leaving the toilet paper 1 being wound on the winding shaft 3. Further, a rider roller pressure adjusting cylinder 13 is provided to adjust the degree of pressure contact with the toilet paper 1 wound on the winding shaft 3, and the winding shaft of the rider roller 4 is adjusted by adjusting the position of the piston. The degree of pressure contact in three directions is adjusted, and thereby the toilet paper 1
The softness of can be adjusted freely.

As described above, the vertical movement of the rider roller 4 and the pressing force from above are adjusted. Moreover,
By lifting the take-up shaft 3 from below, the contact pressure between the take-up shaft 3 and the take-up rollers 2, 2'is adjusted to change the take-up state of the toilet paper 1 wound on the take-up shaft 3 to make it softer. You can get toilet paper. As shown in FIG. 3, the winding shaft 3
In order to hold the winding shaft 3 from both sides, a take-up shaft chuck 14 is provided which is movable to the left and right, and a chuck elevating device 16 for raising and lowering the chuck 14 is attached to adjust the vertical position of the chuck 14 to adjust the take-up shaft 3. Match the position of. Furthermore, in order to weaken the pressure contact force of the toilet paper wound around the winding shaft 3 to the winding rollers 2 and 2 ', the winding shaft cancel cylinder 7 is provided.
Is attached below and the winding shaft 3 is moved up and down via the chuck 14 by moving it up and down.

As described above, the toilet paper roll 10 in which the toilet paper 1 is wound around the winding shaft 3 is completed, and when the cutter 9 cuts the end portion of the toilet paper 1 as described above,
The toilet paper roll 10 moves to the right side in FIG. 1, the end portion of the toilet paper 1 is glued by the glue roller 18, and the toilet paper roll 10 is moved up to the next step by raising its discharge cylinder 19.

The winding shaft 3 is hollow, and a head 21 having radially expandable and contractable split grooves 20 is attached to one end thereof, as shown in FIGS. 8 and 9.
The rod 22 moves left and right in the hollow hole of the winding shaft 3.

Therefore, when the rod 22 is at the position shown in FIG. 8A, the split grooves 20 of the head 21 are in close contact with each other and have a small diameter as shown in FIG. 8B. When the rod 22 is moved to the left as shown in (a), the rod 22 projects into the inclined surface 23 in the head 21, and
As shown in (b), the head 21 is expanded and the split groove 20 is opened. By opening the head 21 in this way, its diameter increases, and its outer side is pressed against the inner peripheral surface of the toilet paper roll 10, and the head 21 of the winding shaft 3 and the toilet paper roll are integrated.

A guide guide 24 is shown in FIG. 4, and the winding shaft holder 25 moves along the guide guide. One end of the winding shaft 3 forming the toilet paper roll 10 is supported by the winding shaft holder 25,
On the other hand, as shown in FIG. 4, the take-up shaft 3 having the head 21 that is also opened and closed at the end is opposed to the take-up shaft 3 having the toilet paper roll 10 separately and oppositely so that both axes are in a straight line. Heads 21 each having a split groove 20 are attached to the opposing positions of the two.

A cutter 26 is arranged above the mating position of the two winding shafts 3 on a straight line, and a toilet paper roll feed plate 27 is located so as to contact the right end of the toilet paper roll 10. The feed plate 27 is a toilet paper roll feed chain. The toilet paper roll feed chain 31 is fixedly mounted at 31 and is intermittently moved together by the intermittent movement of the toilet paper roll feed chain 31. Further, spray nozzles 26 for spraying the lubricating liquid are attached to both sides of the cutter 26 so that the lubricating liquid is sprayed every time the toilet paper is cut.

When viewed from the side, the states of FIGS. 4 and 5 are as shown in FIG. That is, the toilet paper roll 10 is wound around the winding shaft 3, and the rod 22 is inserted into the hollow portion of the winding shaft 3. The toilet paper roll feed plate 27 for pushing the toilet paper roll 10 in such a state from its side is located at the end surface of the toilet paper roll 10, and the guide 30 further surrounds the toilet paper roll 10 from below to guide the toilet paper roll 10. It is provided below 10.

Thus, the toilet paper roll feed plate 2
Toilet paper roll feed chain 31 with 7 attached
Is intermittently moved by an amount corresponding to the width of each individual toilet paper, so that the cutting position of the toilet paper roll 10 is aligned with the position directly below the cutter 26.
Cut into equal width by 6. When the toilet paper roll 10 is cut into individual toilet paper sheets by the cutter 26, when the toilet paper roll 10 is moved to the cutting position of the toilet paper roll, as shown in FIG. 9, the head 21 at the end portion of the winding shaft 3 is moved. The rod 22 is inserted thereinto and the head 21 is pressed against the inner surface of the central portion of the toilet paper roll 10 from the inside. This movement is performed by the two heads 2 of the winding shaft 3 provided facing each other on the left and right.
By spreading 1 at the same time, the toilet paper roll 10 can be more firmly fixed. If the cutter 26 cuts in that state, the cutting can be surely and accurately performed. In this way, toilet paper roll 1
After cutting into individual toilet papers over the entire length of 0, as shown in FIG.
0 is transferred to the conveyor 32, and it is moved to another place by inclining it and the toilet paper roll 1
The cut of 0 is completed.

[0024]

The toilet paper of the present invention is soft,
A uniform paper can be obtained, and the degree of software can be freely and easily changed. By using the method and apparatus for manufacturing a toilet paper of the present invention, it is possible to obtain a toilet paper which is soft, uniform, and whose softness can be freely changed, and the wide width toilet paper roll can be easily and accurately cut. Not only can it be done, but it has the advantage that its realization can be obtained with simple methods and devices.

[Brief description of drawings]

FIG. 1 is a front view showing a method and an apparatus for manufacturing a toilet paper roll of the present invention.

FIG. 2 is a front view showing a state where a rider roller is raised in FIG.

FIG. 3 is a side view of FIGS. 1 and 2 as viewed from the side.

FIG. 4 is a perspective view showing a state before cutting the toilet paper roll of the present invention.

FIG. 5 is a perspective view showing the toilet paper roll being cut.

FIG. 6 is an exploded view of an apparatus showing a cut toilet paper roll according to the present invention.

FIG. 7 is a partial side view showing a state in which a toilet paper roll feed plate is positioned on the end surface of the toilet paper roll of the present invention.

FIG. 8 is a view of a head portion showing a winding shaft of the present invention and a rod moving therein, (a) is a side sectional view, and (b) is a front view.

9 is a view showing a state where the rod is inserted into the head of the winding shaft in FIG. 8, (a) is a side sectional view, and (b) is a front view.

[Explanation of symbols]

1 Toilet paper 2,2 'Winding roller 3 winding shaft 4 rider roller 5 spray guns 7 Winding shaft cancel cylinder 10 Toilet paper roll

Claims (7)

[Claims] 1. A coreless toilet paper in which the surface of the coreless toilet paper close to the central space is hardened with water or glue and the other part is wound to a desired softness. 2. When winding toilet paper on a winding shaft surrounded by two winding rollers and one rider roller, water or glue is attached to the toilet paper at the beginning of winding, and then the rider roller is removed from the toilet paper. A method for manufacturing a coreless toilet paper in which the toilet paper is pulled apart and softly wound around a winding shaft. 3. The method for producing a coreless toilet paper according to claim 2, wherein the weight acting on the winding shaft is adjusted while the toilet paper is wound around the winding shaft. 4. A core adapted to cut the toilet paper wound on the take-up shaft according to claim 2 or 3 into individual toilet paper while strongly holding the toilet paper from the inside of the toilet paper by the take-up shaft. None Toilet paper manufacturing method. 5. A take-up shaft is positioned between two take-up rollers and one rider roller, and a nozzle for injecting water or glue toward the toilet paper toward the take-up roller is arranged. A coreless toilet paper manufacturing device that can be attached to and detached from the winding shaft. 6. The manufacturing apparatus for coreless toilet paper according to claim 5, further comprising a device for applying a force for adjusting a weight acting on the winding shaft to the winding shaft. 7. A device for cutting the toilet paper while holding the inner surface of the toilet paper while holding the inner surface of the toilet paper in an expanded state so that the end portion of the winding shaft wound with the toilet paper can be expanded and contracted.
An apparatus for manufacturing a coreless toilet paper provided after the apparatus according to claim 5 or 6.