JP3791851B2 - Manufacturing method and apparatus for coreless toilet paper roll - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method and apparatus for manufacturing a coreless toilet paper roll.
[0002]
[Prior art]
Conventionally, various ideas and inventions have been made to manufacture coreless toilet paper.
That is, in the inventions of Japanese Utility Model Laid-Open Nos. 3-58186 and 3-58187, a roll is formed by applying water or an adhesive liquid to the winding start end of the paper wound on the winding shaft, and the winding shaft Discloses a coreless illeret paper roll intended to fix the core part by acting in the diameter-expanding direction and to create a shaft hole at the center of the roll.
[0003]
The above idea is intended to retain the hole at the center of the roll. In this case, the applied winding liquid impregnates the surrounding winding layer, and the winding shaft is removed within a short winding time. After that, since the moisture remains in the core layer, there is a problem that the roll center hole is crushed.
Therefore, the winding shaft for paper winding is heated and used for winding, and water or adhesive liquid is applied to the winding start end to advance the winding of the paper. A process for producing a coreless paper roll in which water or an adhesive liquid is dried by the heated winding shaft to form a shape-retaining layer on the core to give rigidity to the core, and an apparatus used for this and a winding Japanese Patent Publication No. 7-53546 relating to the shaft has also been made.
[0004]
However, even in the above-described known invention, when the heated winding shaft is used for winding, it is manually fed onto the drive roll of the paper winding device by hand or the like, and the winding shaft is wound on the winding shaft. After forming the paper roll of a predetermined diameter by adhering the start part, after drying the water or the adhesive liquid infiltrated into the core part in a state of cutting the paper, if the winding shaft is not removed from the paper roll, Since the center hole of the coreless paper roll is crushed, it must be left for a predetermined time before feeding the paper roll with the take-up shaft to the take-up shaft removing device, and all these processes are performed manually. Met.
[0005]
[Problems to be solved by the invention]
As described above, the present invention includes a step of continuously heating a winding shaft for paper winding, that is, a shaft, a step of feeding the shafts one by one to a paper winding device, and a predetermined time after formation on the paper roll. To provide a method and an apparatus for manufacturing a coreless toilet paper roll capable of automatically performing a process of feeding a shaft to a shaft pulling device later and a series of shaft circulation processes for feeding only the shaft from there again without manpower. This is an issue.
[0006]
[Means for Solving the Problems]
The present invention heats a plurality of shafts for winding a paper while continuously transporting them on a heater box arranged to be inclined in the transfer direction, and drives each of the shafts to a pair of paper winding devices. Sequentially feed onto the roll, wind the paper with the winding start end wet with water etc. on the outer circumference of the shaft, form it into a paper roll with a shaft of a predetermined diameter, cut the paper, and cut the paper roll with shaft It is sent to a shaft unscrewing device over a period of time, where the paper roll is extracted and heated while continuously transporting only the shaft as described above, and the shaft is automatically circulated to produce a coreless toilet paper roll manufacturing method. .
[0007]
The present invention relates to a continuous heating device for a shaft that heats a plurality of shafts for winding a paper while continuously transporting them on a heater box that is disposed in a slanting direction in the transport direction, and the paper is wound one by one from there. A means for feeding onto a pair of drive rolls of the take-off device, and winding the paper whose wet start end is wetted with water or the like around the outer periphery of the shaft on the drive roll, and forming the paper roll with a shaft of a predetermined diameter, and then cutting the paper. A coreless toilet paper roll manufacturing apparatus comprising: means; means for feeding the cut paper roll with a shaft to a shaft punching device while taking a predetermined time; and means for feeding the shaft from which the paper roll has been pulled out to a continuous heating device for the shaft. Become.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a manufacturing apparatus for coreless toilet paper to which the manufacturing method of the present invention is applied will be described below with reference to the drawings.
First, in the schematic explanatory view of the present invention shown in FIG. 1, a continuous heating device 2 for continuously heating a plurality of shafts 1 for winding paper is arranged on the upper portion in a slanting direction downward to the left in the drawing, and its bottom portion. Is provided with a heater box 3 in which the inside of the box is heated from 120 ° to 130 °.
[0009]
Next, the heated shaft 1 is pushed up by the cylinder 4 one by one at its downstream end, and the paper is taken up by an air cylinder vertically provided on the left side in the drawing, for example, a feeding means called a lotless cylinder 5 or the like. It is sent to the device 6.
The paper winding device 6 is composed of a pair of drive rolls 7 and 7 and a presser roll 8 that are juxtaposed in close proximity, and the shaft 1 fed onto the pair of drive rolls 7 and 7 rotates in one direction, The paper supplied from the left driving roll 7 as shown by the arrow P is wound up, and the winding start end of the paper P is wound around the shaft 1 by an air nozzle (not shown).
[0010]
At that time, a nozzle 9 for spraying and applying water or an adhesive liquid or the like only to the winding start end of the paper P is provided.
That is, the paper P is wound with the water or the like attached to the winding start end, and after confirming that the paper roll with a shaft having a predetermined diameter is formed, the drive roll 7 is temporarily stopped and the right side of the drive roll 7 The paper roll with a shaft wound up on the transfer plate 10 provided in the above is pushed out by a roll extruding means (not shown), and then the end portion of the paper P is cut by the cutter 16.
[0011]
Next, the shaft-equipped paper rolls 12 whose end portions have been cut are pushed by the cylinder 13 and sequentially fed one by one to the chain conveyor 14 of FIG.
The chain conveyor 14 is configured such that a chain is intermittently moved by a motor to feed a plurality of shaft-equipped paper rolls 12 to a shaft removing device 15 on the right side in the figure, where the shaft 1 is extracted, and the cylindrical paper roll is The shaft 1 that has been removed and taken out to the right in the figure is conveyed upward by a lotless cylinder 5.
[0012]
The paper roll from which the shaft 1 has been pulled out by the shaft punching device 15 is then cut into a predetermined width and then becomes a product of a coreless toilet paper roll, but the process is not shown in FIG.
On the other hand, only the shaft 1 from which the paper roll has been extracted is sequentially fed to the continuous heating device 2 by an air cylinder standing upright on the right side in the drawing, for example, a lotless cylinder 5, and the continuous heating device 2 It moves while being reheated from the right to the left along the inclined surface, and is used again as the shaft of the paper roll.
[0013]
As described above, in the method and apparatus for manufacturing a coreless toilet paper roll according to the present invention, in the method and apparatus for manufacturing a coreless toilet paper roll, the paper is wound around the outer periphery in the process of manufacturing the coreless toilet paper roll, and is extracted from the paper roll. The shaft 1 is circulated sequentially so as to be reused while being heated, and the shaft 1 is automatically circulated without being touched by a human hand.
[0014]
【The invention's effect】
According to the method and apparatus of the present invention described above, the operation of heating and supplying the take-up shaft or shaft required for forming the coreless toilet paper roll can be made fully automatic without human intervention. Moreover, the shaft is circulated and reused, which contributes to labor saving in the coreless toilet paper roll manufacturing process, and can improve the work efficiency and reduce the work cost.
[Brief description of the drawings]
FIG. 1 is a schematic flow side view illustrating an embodiment of an apparatus for manufacturing a coreless toilet paper to which the manufacturing method of the present invention is applied.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Shaft 2 Continuous heating apparatus 6 Paper winding apparatus 7 Drive roll 12 Paper roll with a shaft 15 Shaft extraction apparatus P Paper

Claims (2)

A plurality of shafts for winding a paper are heated while being continuously transferred on a heater box that is inclined in the transfer direction, and each of the shafts is sequentially placed on a pair of drive rolls of the paper winding device. The paper is wound around the outer periphery of the shaft, and the paper start end is moistened with water, etc., formed into a paper roll with a shaft of a predetermined diameter, cut the paper, and the cut paper roll with a shaft is taken for a predetermined time. A method for producing a coreless toilet paper roll which automatically feeds the shaft to the shaft punching device, and then pulls out the paper roll and heats it while continuously transporting only the shaft as described above. A pair of a continuous heating device for a shaft that heats a plurality of shafts for winding a paper while continuously transporting them on a heater box that is inclined in the transfer direction, and a pair of paper winding devices from each shaft. Means for feeding onto the drive roll, means for cutting the paper after it is formed into a paper roll with a shaft of a predetermined diameter by winding the paper whose winding start end is wetted with water or the like on the outer periphery of the shaft on the drive roll, and cutting An apparatus for producing a coreless toilet paper roll comprising means for feeding the paper roll with a shaft to a shaft punching device while taking a predetermined time and means for feeding the shaft from which the paper roll has been pulled out to a continuous heating device for the shaft.

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