JPH03147662A - Manufacture device for coreless toilet paper roll - Google Patents

Abstract

PURPOSE:To easily manufacture a coreless toilet paper roll having a large hole at the center in simple manner by installing a solid taking-up shaft whose outside diameter can be expanded and contracted on the center upper surface of two drums arranged in parallel and installing a riding roll on the upper surface of the taking-up shaft. CONSTITUTION:A toilet paper 4 is supplied on a solid expandable taking-up shaft 1 whose outside diameter is elongated to a large diameter, and two drums 2 are revolved, and then the toilet paper 4 is tightly wound on the taking-up shaft 1, pressed on the outer periphery of the taking-up shaft 1 by a riding roll 3. Then, a coreless toilet paper roll having a relatively large hole which is nearly equal to the outside diameter of the taking-up shaft 1 at the center can be obtained by pulling out the taking-up shaft 1 from the toilet paper 4 in roll form which is tightly wound on the taking-up shaft 1 by reducing the outside diameter of the taking-up shaft 1.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention is an apparatus for producing a coreless toilet paper roll in the form of a tightly rolled roll having a large hole approximately the same size as the outer diameter of a central VC solid roll shaft. This is related to.

Conventional technology A very ordinary conventional toilet paper roll manufacturing device uses two parallel drums to loosely wind a paper tube core with a diameter of about 3.8 m, and roll it to a length of 65 m. There is equipment for making cored toilet paper rolls with an outer diameter of about 11.5 m.

In addition, as a conventional coreless toilet paper roll fJJ manufacturing device, Patent No. 1.022.189 (Special Publication No.
11100 Publication), Utility Model Registration No. 1.366.74
No. 8 (Japanese Utility Model Publication No. 54-43963), the toilet paper is first wrapped loosely using two drums (rollers), then tightly wrapped, and then There is a device that makes coreless toilet paper rolls.

Problems to be Solved by the Invention: This conventional manufacturing device for manufacturing cored toilet paper rolls requires a paper tube core, which increases the cost during production. Along with this, there was the problem that the toilet paper was wrapped too loosely for its length, making it taut.
There has been a problem in offices, companies, etc. that after using all the toilet paper, the paper tube core remains, which has to be thrown away.

In addition, in the conventional production of the latter type of coreless toilet paper roll, as shown in Figure 6, the ultra-fine holes 12 in the center formed in the toilet paper roll 13 after the core is removed are formed by the toilet paper 11 that was initially loosely wound. ', the shape naturally closes the 12 minutes of the ultra-fine hole in the center, which is the space, so a complete ultra-fine hole 12 is not formed in the center of the toilet paper roll 13, and when in use, one end is pointed and the other end is shaped like a spring. A special thin horizontal bar (diameter 1
c1n) must be inserted into this imperfect ultra-small hole 12 from the one pointed end and this horizontal bar must be locked to the toilet paper holder, so it cannot be used with a normal holder installed in ordinary homes. thick mounting support rod (diameter 2
．． (approximately 5 cm) Fi cannot be used and a specially shaped horizontal bar is required, which increases the cost as the specially shaped horizontal bar is required. There was a problem in that the horizontal bar remained and because one horizontal bar was placed in each bag containing several rolls, the horizontal bar had to be discarded every time several rolls were used.

This invention solves the above-mentioned problems of the conventional cored or coreless toilet paper roll manufacturing apparatuses, makes it possible to easily produce coreless toilet paper, lowers the cost, and improves the durability of toilet paper rolls. Wari [to reduce the bulk (volume), the inside of the roll is always shaped
LL: We create a coreless toilet paper roll that is always easy to attach to a conventional holder and has a large hole of a predetermined size in the center to maintain its shape. It is intended for such purposes.

Means for Solving the Problems The apparatus for producing a coreless toilet paper roll of the present invention is provided with a hard winding shaft with an expandable outer diameter on the upper center surface of two parallel drums, and a riding roll on the upper surface of this winding shaft. This is an apparatus for manufacturing coreless toilet paper rolls, which is characterized by the following features: Then, a spray nozzle is installed facing a hard expandable roll shaft, and when the toilet paper is started to be rolled up on this roll shaft, the spray nozzle sprays the cleanser solution onto the toilet paper while winding it, resulting in a coreless toilet paper roll. This is preferable because it forms a cylindrical part of the toilet paper in which the toilet paper pieces are temporarily attached at the center.

Function The apparatus for producing a coreless toilet paper roll of the present invention is a coreless toilet paper roll manufacturing apparatus in which a hard roll shaft with an expandable outer diameter is provided on the center upper surface of two parallel drums, and a riding roll is provided on the upper surface of this roll shaft. Since this is a roll-manufacturing device, toilet paper is supplied to a hard telescoping roll whose outer diameter has been expanded to a larger diameter, and by rotating two drums, two rolls of toilet paper are rolled around the outer circumference of the roll. It is tightly wound around the winding shaft while being pressurized by the iding roll. Coreless toilet paper that has a relatively large hole in the center that is almost the same as the outside diameter of the roll by reducing the outside diameter of the roll and removing the roll from a roll of toilet paper that is tightly wound around the roll. Can make one roll. It is possible to reduce production costs by not using a paper tube core during production and by not using a specially shaped horizontal bar since it is attached to a normal holder during use, and the same volume (
You can make coreless toilet paper rolls wrapped with long toilet rolls (bulk).

Embodiment Next, a first embodiment of the apparatus for manufacturing a coreless toilet paper roll according to the present invention will be described with reference to the drawings.

Above the center of two parallel drums 2.2 are arranged a retractable hard metal winding shaft 1 which has been extended to an outer diameter approximately the same as that of a conventional paper tube core, for example, about 3.8 mm in diameter. Provided for. A riding roll 3 serving as a pressure roll is provided on the winding shaft 1.

As the toilet paper 4 is supplied to the roll shaft 1 and the drums 2 and 2 are rotated, the roll shaft l rotates, and the roll shaft 1 is rotated.
Toilet paper 4 is placed on the outer periphery of the riding roll 3.
It is tightly wrapped while being pressurized.

The outer diameter is 11mm, just like a regular toilet paper roll.
After wrapping tightly around the casing for about 5 crn, the winding is stopped, and at that point, the tightly wrapped toilet paper roll is made into a hard roll that is stretchable because it cannot be removed from the roll shaft 1. Outer diameter: 3 - Outer diameter of 1 ft from the toilet paper roll 5 that has been reduced and tightly rolled as shown in the imaginary line: Consists only of the toilet paper roll 5 that has been reduced by pulling out the hard roll shaft 1 and removing it. At the same time, a coreless toilet paper roll 5 kept in the shape of a roll having a large hole with a center IC of about 3.8 cm is made.

The coreless toilet paper roll 5 manufactured using the manufacturing apparatus of this embodiment has #-1 protruding reinforcing strips 5' formed at three locations, the same number as the slits 1' on the roll shaft x, and has an outer diameter of 11 ．．
It has an outer diameter of 5 crn, which is almost the same as the conventional toilet paper, but the length of the toilet paper is about 130 m, so it is about twice as long as the conventional toilet paper with the same outer diameter, which has a length of 65 m. Since the toilet paper roll can be turned to almost the same volume, it is not bulky, can be used for a long time, and the time and effort required to replace the toilet paper roll in the holder is reduced by about half.

In the manufacturing apparatus of this embodiment, a dilute aqueous solution (adhesive solution) of polyvinyl alcohol (PVA) with a concentration of about 0.5% is applied to the toilet paper from the spring nozzle 6 at the beginning of rolling the IK toilet paper roll 4. about 5 to 4
P sprayed by spraying over a length of 0 cm
Using the VA aqueous solution, the toilet paper 4 is temporarily attached to each other to form the toilet paper cylindrical portion 7. From the rail, the coreless toilet paper OK 8 is formed.
o The shape retention of the periphery of the large hole 9 is further improved. Furthermore, if a heater is provided inside the roll shaft 1, or a heater is provided outside the casing or the roll shaft 1, and the roll shaft 1 is heated and peeled, the sprayed adhesive liquid will quickly dry a little and be removed from the toilet. Since the papers are weakly stuck to each other, the diameter is reduced and when the roll shaft 1 is pulled out from the toilet paper roll 8, the toilet paper cylindrical part 7 formed at the beginning of the roll of the toilet paper roll 8 creates a coreless toilet paper. The shape of the roll can be better maintained.

The toilet paper cylindrical part 7 of the coreless toilet paper roll 8 is attached to a holder and the temporarily attached toilet paper cylindrical part 7 is pulled out from the holder of the toilet paper 1 for use.

In addition, the slits on the winding shaft 1 should be placed in 2 to 5 places.
Approximately 0.5 as adhesive liquid sprayed from spray nozzle 6
In addition to PVA aqueous solution with a concentration of about 0.5%, methyl cellulose (MC) with a concentration of about 0.5%, acrylic adhesive that has the property of redissolving in water and with a concentration of about 0.05% to 0.01%, etc. good.

Effects of the Invention The apparatus for producing a coreless toilet paper roll of the present invention has a solid roll shaft with an expandable outer diameter on the center upper surface of two parallel drums, and a VC riding roll on the upper surface of this roll shaft. Since this is a manufacturing device for core toilet paper rolls, rolls of toilet paper with an expanded outer diameter are rolled into a hard roll while applying pressure with a riding roll, the outer diameter is reduced, and the roll is pulled out from the center. VC Coreless toilet peno with large holes - rolls can be easily made, no paper tube core is used during production, and the special shape of the side allows the roll to be attached to a regular holder during use. Since you don't use sticks, you can make bamboo at a lower cost. In addition, it is possible to make a long toilet paper roll with the same volume (bulk) by wrapping it tightly, and the coreless toilet paper roll with large holes does not lose its shape. be. Furthermore, since it is coreless, it has the advantage that nothing remains after use. In addition, in manufacturing equipment equipped with a spray nozzle facing the roll shaft, a toilet paper cylindrical portion is formed at the beginning of the roll by spraying adhesive liquid from the spray nozzle at the beginning of the roll, so the shape of the coreless toilet paper roll is can be maintained even better.

[Brief explanation of the drawing]

FIG. 1 is a side view of one embodiment of the device of the present invention, FIG. 2 is a plan view of the main parts, FIG. 3 is an enlarged side view of the winding shaft, FIG. 4 is a side view of the manufactured product, and FIG. The figure is a side view of another product, and FIG. 6 is a side view of a product manufactured using the conventional apparatus. l is the winding shaft, 2 drums, 3 riding rolls, 4 toilet paper, 5 toilet vapor rolls,
6 is a soufflé nozzle.

Claims (1)

[Claims] 1. A coreless toilet paper roll characterized in that a hard roll shaft with an expandable outer diameter is provided on the upper center surface of two parallel drums, and a riding roll is provided on the upper surface of the roll shaft. manufacturing equipment. 2. The coreless toilet paper roll manufacturing apparatus according to claim 1, wherein a spray nozzle is provided toward the roll shaft.