JPH02193849A - Method and device for winding toilet paper - Google Patents

Abstract

PURPOSE:To execute good winding without occurrence of tight winding by winding toilet paper with supporting both the ends of a shaft for winding toilet paper so as to prevent increase in weight on the shafts by chucking. CONSTITUTION:A chucking device is provided such as a bracket 5 with an air cylinder 15 for supporting with chucking both the ends of a shaft for winding toilet paper 2 mounted on two winding rollers 1A and 1B. Weight on the shafts is all the time killed by this chucking device, and a reverse warp or deflection of the shaft is prevented. And tight winding of toilet paper is prevented and winding is executed by even winding pressure to enable satisfactory toilet paper rolls.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a toilet paper winding method and device for accurately winding toilet paper, particularly coreless roll type toilet paper, around a shaft. be.

[Conventional technology]

Conventionally, in the manufacturing process of toilet paper using a coreless roll method, for example, on two rotating take-up rolls,
A wide toilet paper winding shaft with a length of 1,600 cm and a diameter of 30 fflIll is mounted, the toilet paper is fed from one side of the shaft, and the tip of the toilet paper is used to wind the tip of the toilet paper around the outer circumferential surface of the shaft from the other side. Air blow is performed only at the initial stage,
It is designed to be wound up to a predetermined diameter while being held down by a rider roll on the shaft.

However, in the conventional toilet paper winding system described above, both ends of the shaft are free, so the initial tip of the toilet paper may not be blown back accurately by the air blow, or the paper thickness may be uneven. If this occurs, there is a problem in that the shaft moves toward the thicker paper, and winding cannot be performed smoothly and accurately.

Therefore, the inventors of the present invention, in order to solve the above-mentioned problems,
As a result of conducting actual M, we focused on the fact that toilet vapor is always wound up in a constant state by supporting both ends of the shaft with appropriate chucking devices, and found that when both ends of the shaft are supported As the thickness of the toilet vapor roll increases, the weight of the chucking device that supports the shaft increases, pressing against the take-up roller at the bottom, which may cause the shaft to warp or bend, or the toilet vapor to be tightly wound. It has been found that problems such as winding up occur.

(Problems to be Solved by the Invention) In order to solve the above-mentioned conventional problems, the present invention supports both ends of a toilet paper winding shaft with a chucking device, and the chucking device supports the toilet paper winding shaft during vapor winding. Toilet vapor winding method and method capable of performing good winding without causing problems such as the shaft going backwards or bending or the toilet vapor becoming tightly wound due to an increase in the weight of the king device. The problem to be solved is to provide a device.

[Means to solve the problem]

As a means for solving the above-mentioned problems, the toilet vapor winding method of the present invention supports the toilet paper winding shaft placed on two winding rollers while chucking both ends of the shaft. The present invention is characterized in that the toilet vapor is wound onto the shaft, and the weight due to chucking is not always applied to the shaft during the winding.

In addition, the toilet vapor winding device for applying the above method is equipped with a chucking device such as a bracket with an air cylinder that supports both ends of the toilet paper winding shaft while chucking it. It is constructed by providing a support device consisting of an air cylinder etc. that constantly cancels out the weight applied to the shaft by the king device, and supports both ends of the toilet paper winding shaft by chucking, and also eliminates the weight applied to the shaft by the chucking. This is to prevent the weight from increasing.

〔Example〕

The present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic front view of a main part of a winding device to which a toilet paper winding method according to an embodiment of the present invention is applied, and FIG. FIG. 3 is a side view of a cross section of the main part of the shaft portion shown in the figure, and FIG. 3 is a plane cross-sectional view of the main part in the direction 1-1 of FIG.

First, in this toilet vapor winding device, an elongated cylindrical shaft 2 for winding up wide toilet paper before cutting is placed on two winding rolls IA and IB rotating in the direction of arrow R. Toilet vapor is fed to the shaft 2 from the right direction in FIG. The shaft 2, around which the toilet vapor P is wound, is pressed down from above by a rider roll 3. , Toilet Vapor P is
After being wound up to a predetermined diameter, the roll is removed from the device and then cut into a predetermined roll width.

Next, both ends of this shaft 2 are formed into hemispherical convex portions as shown in FIG. It can be rotated freely.

Also, a joint 8 provided at the lower end of the lamp arm 5, which can be freely rotated using a pin 10 in the middle of the bracket 7 as a fulcrum, is injected with air so that each rod 4 is pressed against both ends of the shaft 2 by an air cylinder 9. Pressure is applied, and both ends of the toilet paper winding shaft 2 are chucked and supported by the chucking device having the above configuration, and this chucking device is shown in Fig. 3. As shown in the figure, the mounting is provided so that it can be slid up and down along a guide 12 provided vertically on a table 11.

One end of the air cylinder 9 is pivotally supported by a pin 20 on the stand 13 of the chucking device, and the other end is connected to a joint 8 of the clamp arm 5 through a knuckle joint 14.

Next, the stand 13 of the above-mentioned chucking device
As shown in the figure, the installation is made possible by a support device consisting of an air cylinder 15 that moves up and down in the vertical direction with respect to the table 11, and can be lifted up. Air pressure is designed to always cancel out the

In the above embodiment, while supporting both ends of the shaft 2 while chucking and winding up the toilet paper P onto the shaft 2, the air cylinder 15 is installed so that the weight of the chucking is not always applied to the shaft 2. Although a support device that lifts the chucking device upward is provided, this support device may also have a similar effect while suspending the chucking device from above and below.

〔Effect of the invention〕

As explained above, according to the winding method and device of the present invention, the toilet paper winding shaft is supported at both ends by the chucking device, so the toilet paper is always wound in a constant state. Therefore, there is an effect that the paper can be wound up smoothly and accurately.

Furthermore, as mentioned above, the weight of the chucking device that supports both ends of the shaft is supported by the support device, and the weight of the chucking is not always applied to the shaft, so that the shaft is prevented from warping or bending. This method has the advantage that tight rolling of the paper is prevented, winding is performed with uniform winding pressure, and a good toilet paper roll can be obtained.

Note that the present invention can be effectively applied mainly to the roll-up of toilet paper using a coreless roll method.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view of a main part of a winding device to which a toilet paper winding method according to an embodiment of the present invention is applied, FIG. 2 is a side view of a cross section of a main part of the shaft portion of FIG. 2 is a plan sectional view of the main part in the direction 1-1 of FIG. 2. FIG.

Claims (1)

[Claims] 1. Supporting both ends of a shaft for winding up toilet paper while chucking it, and winding the toilet paper onto the shaft, so that the weight of the shaft during winding is not always applied to the shaft due to chucking. How to roll up toilet paper. 2. A toilet paper winding device that is provided with a chucking device that supports both ends of the toilet paper winding shaft while chucking it, and a support device that constantly cancels out the weight applied to the shaft by the chucking device. .