JPH069117A - Manufacture of machine glazed paper - Google Patents

Abstract

PURPOSE:To wind the wind starting end of paper around a winding core easily and cirtainly, so as to raise the productivity and quality of machine glazed paper, by starting the take-up of the paper after bringing the wind starting end of the paper in contact with the outer circumference of the winding core through blowing air a tittle behind the wind starting end of the paper. CONSTITUTION:Paper 4 is at first taken up by a winding core C above a space 3 between a pair of rotary rollers 1, 2, and at the same time, a touch roller 6 is brought in pressure contact with a paper roll 5 from above. Next, after the paper roll 5 is rollingly moved on guide plates 7 and rolled out above a space between a pair of receiving rollers 8, 9, the paper is cut by a cutter 10, on the guide plates 7, on the way of its extending backward from the paper roll 5. Subsequently, the next winding core C is fed above a space 3 between rotary rollers 1, 2. A nozzle 11 for blowing air diagonally upward is placed under the guide plates 7. When the paper 4 is cut by the cutter 10, air is blown from the nozzle 11. In this way, the wind starting end of the paper 4 is wound around the winding core C easily and cirtainly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing roll wrapping paper such as a toilet paper roll having no paper tube on its inner circumference.

[0002]

2. Description of the Related Art A method for manufacturing such a toilet paper roll having no paper tube on the inner circumference is disclosed in, for example, Japanese Patent Publication No. 62-62.
As disclosed in Japanese Patent No. 34665, a wide width toilet paper is directly wound around a core of a toilet paper roll manufacturing machine without a paper tube, and when the winding length of the paper reaches a predetermined width, the width of the paper is reduced. Direction to make a toilet paper log roll, pull out the core from this log roll, and then use a log cutting machine to slice the log roll into multiple rolls with a predetermined axial length. Of.

[0003]

At the beginning of winding toilet paper having a wide core, conventionally, water or a diluted paste solution having a low paste concentration is attached to the tip of the paper, and a center drive method or a surface drive method is used. It starts to wind by making contact with the core being rotated by, but it is very difficult to make the tip of the paper accurately contact the outer circumference of the rotating core, and it is impossible to redo it if it fails. It often occurs and hinders the productivity of toilet paper. Also, when the winding of the paper is finished and the core is pulled out from the inner circumference of the winding layer of the paper, the tip of the paper is adhered to the winding core by water or a diluting glue solution attached to the front end of the paper, The paper on the inner periphery of the roll may break and go out together with the core, which may make the toilet paper roll look unattractive.

[0004]

The present invention has been developed for the purpose of solving the above-mentioned problems, and the first aspect of the present invention is to wind the paper directly on the outer circumference of the core. After forming a predetermined paper winding layer, the winding core is removed, and in the method for producing a roll paper that causes the core to be removed on the inner circumference of the paper winding layer, the air is slightly blown after the winding start end of the paper. It is characterized in that it is blown onto the outer circumference of the core to start winding the paper.

According to the second aspect of the invention, the paper is wound directly on the outer circumference of the winding core to form a predetermined paper winding layer, and then the winding core is removed, and the winding core is provided on the inner circumference of the paper winding layer. In the method for producing a roll wrapping paper that causes the traces of the above, the paper is humidified when the paper is wound around the core several times after the start of winding the paper.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated toilet paper take-up device has a first rotary roller and a second rotary roller for surface driving for rotating the core C by friction, and both rollers 1 and 2 are of the core C. They are arranged in parallel with an interval 3 narrower than the thickness.
The winding core C is made of metal or plastic and its thickness cannot be changed. Further, although it is shown as a round bar in the figure for convenience, as shown in the above-mentioned Japanese Patent Publication No. 62-34665, the cross-sectional shape may be a polygonal shape, a gear shape, or any other shape other than a circle.

The first and second rotary rollers 1 and 2 are each provided with an arrow 1 at the same peripheral speed as the supply speed of the paper 4 which is the toilet paper base paper in which the perforations for separation are cut at predetermined intervals in the length direction. 1'and 2 ', while the rollers C are supported on the space 3 between the rollers as shown in FIG.
Circumscribes and presses the paper roll 5 onto the space between the two rotating rollers 1 and 2. The touch roller 6 is attached to the bearing at the lower end of the piston rod of the piston cylinder that is attached downward, rotates freely, and is displaced upward in response to the thickening of the paper roll.

When the winding core C winds the paper 4 on the first and second rotating rollers for a predetermined length, as shown in FIG.
Rises and moves away from the paper roll 5, and then the kicker kicks both ends of the core of the paper roll 5. As a result, the paper roll 5 rolls on the guide plate 7 between the first and second rotating rollers and rolls out above the space between the pair of receiving rollers 8 and 9. Then, the cutter 10 attached to the lower end of the piston rod of the downward piston cylinder projects downward, and cuts the middle of the paper extending backward from the paper roller 5 on the guide plate 7. At the same time, new cores for winding the paper next are
It is supplied on the space between the rotating rollers 1 and 2.

Below the guide plate 7, there is provided a nozzle 11 for ejecting air obliquely upward from between the rear end and the second rotating roller 2, and when the cutter 10 cuts the paper 4 on the guide plate, The nozzle 11 ejects air.

As a result, a portion 4'from the portion of the paper 4 which is restrained from above by the winding core C placed on the gap between the first and second rotating rollers 1 to the leading end cut by the cutter 10.
2 is blown up as shown in FIG. 2, wrapped around the winding core in a folded shape as shown in FIG. 3, and overlaps the portion 4 ″ along the first rotating roller 1, and in this state, as the winding core rotates, Initially, the paper is wrapped around the core C with the portions 4'and 4 "being doubled, and the winding is reliably restarted.

At the initial stage when the paper is wound around the winding core C about 5 to 10 times, a small amount of liquid is sprayed onto the winding layer of the paper by the second nozzle 11. This liquid may be just water, a deodorant,
It may contain a fragrance, a fragrance or the like. The purpose of moistening the liquid with paper is to weaken the stiffness of the paper and to match the shape of the inner circumference of the paper roll with the shape of the outer circumference of the core. The inner circumference of the paper roll is circular, and when the cross-sectional shape of the winding core is polygonal or the like, the inner circumference of the paper roll is also polygonal or the like.
Further, the spray amount of the liquid amount is extremely small. For example, if the liquid is sprayed when five layers of paper are wound around the outer circumference of the winding core, the liquid adhering to the paper and the five layers are wound during winding. The several layers wound on top should be slightly moistened so that they stick to the outer circumference of the core so that they will not be broken when the core is pulled out later.

When the second nozzle 11 sprays the liquid, the touch roller 6 descends, contacts the core C from above through the winding layer of the paper taken up to that point, and the winding continues (FIG. 5). reference). The core of the paper roll (log roll) that has rolled out onto the receiving rollers 8 and 9 is pulled out, and then a log cutting machine cuts the paper roll into a plurality of toilet paper rolls each having a predetermined axial length.

In the above-mentioned embodiment, a wide toilet paper base paper is wound around a core to form a log roll, the core is pulled out from this log roll, and then the log roll is cut into a log slice by a log cutting machine. Although it is a manufacturing method, slit a wide width toilet paper base paper to a predetermined width before winding it on the core, wind all slit strips simultaneously on one core, and remove the core after winding. Also, it can be applied to a slit type manufacturing method in which a plurality of toilet paper rolls having a predetermined axial length are separated.

[0014]

According to the invention of claim 1, the nozzle 1
Since 1 blows air onto the core by blowing air to a position slightly after the winding start end of the paper to be wound on the winding core C, there is room for mistakes when the winding start end is accurately wound on the winding core. Absent. Therefore, the production efficiency of rolled paper is improved. Further, according to the second aspect of the invention, the paper layer on the inner peripheral portion of the paper roll (log roll) can be moistened to weaken the waist, and the inner peripheral shape can be made to match the cross-sectional shape of the winding core. In addition, the inner paper layer does not stick to the outer circumference of the core even if it gets wet, so that the inner paper layer will not be broken when the core is pulled out. Therefore, high quality roll wrapping paper can be provided.

[Brief description of drawings]

FIG. 1 is a side view showing a state in which winding of a paper winding device is completed.

FIG. 2 is a side view showing a state in which the paper is cut and the nozzle ejects air.

FIG. 3 is a side view of a main part in a state where a winding start end portion of the paper wraps the winding core in a folded shape.

FIG. 4 is a side view of a main part of a state in which the liquid is sprayed at the beginning of winding the paper.

FIG. 5 is a side view of an initial state in which the paper winding is resumed.

[Explanation of symbols]

 1 First Rotating Roller 2 Second Rotating Roller 3 First and Second Rotating Roller 4 Paper 5 Paper Roll 6 Touch Roll 7 Guide Plate 8 Receiving Roller 9 Receiving Roller 11 Nozzle (Air Jet) 12 Second Nozzle (Liquid Spray)

Claims (2)

[Claims] 1. A roll for winding a paper directly on the outer circumference of a winding core to form a predetermined paper winding layer, and then removing the winding core to cause a core removal mark on the inner circumference of the paper winding layer. A method for producing a rolled paper, wherein in the method for producing a wound paper, air is blown slightly after the winding start end of the paper to bring it into contact with the outer circumference of a core to start winding the paper. 2. A roll for winding a paper directly on the outer circumference of a winding core to form a predetermined paper winding layer, and then removing the winding core to cause a core removal mark on the inner circumference of the paper winding layer. A method for producing a roll wrapping paper, which comprises moistening the paper when the paper is wound around a core several times after starting winding the paper.