JP2000255844A - Roll and rolling-out method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably feed a plurality of long belt-like objects on the production line for sanitary goods using a simple rolling-out device by respectively winding a plurality of long belt-like objects on a single core body in parallel. SOLUTION: A roll 1 is formed so that a plurality of long belt-like objects 11, 12 are respectively wound on a single core body 13 in parallel. Namely, the roll 1 can be obtained, while slitting a large width sheet having width at least over the total width of a plurality of long belt-like objects 11, 12, by winding the long belt-like objects 11, 12 generated by slitting on the same core body 13. A roll driving mechanism 2 is a mechanism which rotates the roll 1 and simultaneously rolls out a plurality of the long belt-like objects 11, 12, and constituted of an endless belt 23 laid between a driving roll 21 and a driven roll 22 and frictionally engaged with the roll 1 to rotate the roll 1. When the roll driving mechanism 2 is driven to rotate the roll 1, the respective long belt- like objects 11, 12 are simultaneously rolled out from the roll 1. Both long belt-like objects rolled out are formed with a prescribed gap between both by a separation device 3, and then further carrier on the same horizontal face.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll formed by winding a plurality of long strips and a method for feeding the long strip using the roll.

[0002]

BACKGROUND OF THE INVENTION Generally,
When a plurality of long objects are supplied on the line, each of the long objects is wound around a separate core body, and the same number of necessary long objects is used. However, a mechanism (a material shaft, a drive device, a paper cutting device, a tension control, etc.) for feeding each long material from each roll is required.
Since a wide space for feeding out all the long objects is required, it is necessary to use a large or complicated feeding device. In addition, the outer shape of the roll of each long object is not strictly a perfect circle, and there is a difference in internal tension (the tension of the sheet itself at the time of winding) between each long object. Even when the long objects are coaxially arranged in parallel, there is a problem that some of the long objects are loosened during the unwinding, and it is difficult to stably unwind.

[0003] Further, there is a method in which a wide sheet is fed out, and the sheet is cut and divided in the longitudinal direction into a plurality of long objects. Moreover, in order to guide the paper downstream from the slitter, it is necessary to cut a part of the wide sheet in advance, and the setting is not easy. Further, since the blade is interposed, the paper guide is dangerous.

An object of the present invention is to form a plurality of long strips on a production line for sanitary goods such as diapers and sanitary napkins.
It is an object of the present invention to provide a method for feeding a roll and a long strip that can be stably supplied by using a simple feeding device.

[0005]

The present invention has achieved the above object by providing a scroll in which a plurality of long strips are wound in parallel on a single core. . Further, the present invention has achieved the above-mentioned object by providing a method for feeding out a plurality of long strips from the scroll at the same time.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on preferred embodiments. The scroll 1 according to an embodiment of the present invention includes a plurality of long strips 11 and 12 each having a single core 13.
Are wound in parallel. FIG. 1 shows the scroll 1 set in the feeding device.

Each of the long strips 11 and 12 is formed by cutting a single wide sheet (not shown) into a plurality of pieces along the longitudinal direction. Preferably, the long strips 11 and 12 are each formed by winding a single wide sheet around the single core 13 while being cut and divided into a plurality of pieces along the longitudinal direction. Here, “wound while being cut and divided” means that the formation of each long strip by the slit and the winding of each long strip around the core are performed in a continuous process. That is, while the scroll 1 slits a wide sheet having a width equal to or greater than the total width of at least the plurality of long strips 11 and 12, the long strips 11 and
12 is obtained by winding the core 12 around the same core 13.

For this reason, in the scroll 1, the external shape projected from the axial direction of the one long strip 11 and the other long strip 12 in the wound state substantially coincides with each other. There is little difference in the internal tension of the strips 11 and 12.
The core 13 may be cylindrical or cylindrical, and there is no particular limitation on the material for forming the core. Further, there is no particular limitation on the material and the like of each long band-shaped material such as paper and synthetic resin. In addition, a slip is not generated between the long strips 11 and 12 and the core 13 by an adhesive tape, a magic tape, or the like. The long strips 11 and 12 have the same width.

Next, an embodiment of a method for feeding out a long strip using the above-mentioned scroll 1, ie, a method for feeding out a long strip according to the present invention, will be described. First, the scroll driving mechanism 2
The above-mentioned scroll 1 is set as shown in the drawing device provided with.

The scroll driving mechanism 2 is a mechanism for rotating the scroll 1 to feed out a plurality of long strips 11 and 12 at the same time, and a driving roll 21 connected to a driving source.
And a driven roll 22 which is paired with the drive roll 21 and is provided so as to be vertically movable in an arc around the center of the drive roll 21.
And an endless belt 23 that is wound between the driving roll 21 and the driven roll 22 and frictionally engages with the scroll 1 to rotate the scroll 1. The endless belt 23 has a width extending between both ends of the scroll 1 in the width direction.

When the scroll drive mechanism 2 is driven to rotate the scroll 1, the long strips 11 and 12 are separated from the scroll 1.
Are simultaneously drawn out in the direction of the arrow in the figure. The long strips 11 and 12 that have been fed out are further conveyed on the same horizontal plane after a predetermined gap 4 is formed between them by the separating device 3.

According to the feeding method of the present embodiment, since each of the long strips 11 and 12 is wound around the single core 13 in parallel, the long strips 11 and 12 are used. A difference in the feeding amount between the objects 11 and 12 is unlikely to occur. Therefore, looseness does not occur only in some long strips,
A plurality of long strips can be stably fed.

Further, a plurality of long strips 11 and 12 can be extended by a single drive mechanism 2, so that the required extension device can be reduced in size, cost can be reduced, and maintenance burden can be reduced. it can. In addition, the necessary number of various devices such as a meandering correction device such as a tension measuring device or a potentiometer for performing tension control can be reduced. Further, the plurality of long strips 11 and 12 can be spliced at the same time, and the yield can be improved.

In addition, since a slitter is not required for supplying a plurality of long strips, there is no danger at the time of paper guide and the like, and safety and economy are excellent. In addition, particularly when the single wide sheet is cut into a roll and formed into a roll, the long strips 11 and 12 that are sequentially fed out have very similar physical properties. , 12 are manufactured at the same time, disadvantages due to differences in properties between the long strips 11, 12 such as warpage and distortion are unlikely to occur.

In the feeding method according to the present invention, meandering due to splicing or the like can be suppressed, and a long strip-shaped object is less likely to come off during running or to be cut by a transport tension. This is effective in the case where the long band-shaped object has a narrow width of 60 mm or less, particularly in the case of 30 mm or less. The roll according to the present invention may be formed by winding three or more long strips, or the width of each long strip may be different. The scroll according to the present invention further cuts and divides a plurality of wide sheets obtained by cutting and dividing a single sheet in a continuous process, and converts a plurality of long strips formed from each wide sheet into each wide sheet. It can also be manufactured by winding each sheet into a single core.

[0016]

According to the present invention, a method for feeding a plurality of long strips on a production line of sanitary goods or the like stably by using a simple feeding device can be used. Can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a state in which a scroll according to the present invention is set in a feeding device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Scroll 11, 12 Long strip 13 Core 2 Scroll drive mechanism

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Nao Otani 2606 Akabane, Kakaicho, Haga-gun, Tochigi Pref.

Claims (3)

[Claims] 1. A roll in which a plurality of long strips are respectively wound around a single core in parallel. 2. The roll according to claim 1, wherein the long strip is wound around the single core while a single wide sheet is cut and divided into a plurality of pieces along the longitudinal direction. 3. A method of feeding a long strip from the scroll according to claim 1 or 2, wherein the plurality of long strips are fed simultaneously.