JPH0694334B2 - Waist folding device for waist folding paper - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a device for continuously processing waist tissue such as pocket tissues or paper towels, napkins, etc. using waist folding rolls, and more particularly to a device for waist folding and take-back. The present invention relates to a waist folding and take-up device that can be efficiently performed.

2. Description of the Related Art In general, waist folding of pocket tissues and the like is performed by waist folding rolls.

This waist folding roll is provided with a plurality of paper mouths for waist folding on the circumferential surface of the roll, and the supply paper is pierced by the paper mouth before the leading end thereof to fold the waist as the roll rotates.
The continuous origami folded origami is aligned and stocked one after another on the side of the origami roll-out side of the hip folding roll, and is taken out from the end of the laterally stacked row every predetermined number of sheets and packaged.
The hip folding and the horizontal overlapping are performed in series for each single leaf at the same cycle.

Further, as another example, two belts are hung on a waist folding roll, each belt is bent so that two belts are stacked, and the belts are horizontally stacked to double the efficiency.

In any of the above cases, the paper is fed and the waist folding roll is used to perform the waist folding and the sizing, and the paper supplied from the cardboard roll is cut to the sizing and fed into the hip folding roll. There are things.

Zigzag fold like a pocket tissue (Fig. 4A),
Or, in the case of folding into a double fold (B in the same figure), after using various folding plates or the like on the strip, fold each folding form over the length,
Cut it to a fixed size and feed it to a waist-folding roll and make a waist fold for each sheet, or feed it to a waist-folding roll in the state of a band that has been folded without cutting it to the waist. The method of folding and sizing is adopted.

Problems to be Solved by the Invention Therefore, in the former case where the waist folding and the lateral lap alignment are performed in series at the same cycle for each single leaf, the capacity of the lateral lap aligning device is also restricted and the processing efficiency is high. There is a limit to increase (rotation speed of the waist folding roll), and there is a defect that production efficiency is lacking.

In the latter two-sheet system, the processing efficiency can be doubled, but two printing units are required and each mechanical unit requires two systems, which is complicated, large and expensive.

The present invention provides a waist folding and take-up device for waist origami such as a pocket tissue which eliminates the above problems and which can be expected to improve the production efficiency in a single series.

Means for Solving the Problems Thus, the present invention, as a means for achieving the above object, is provided on the peripheral surface of the hip folding roll on the delivery side of the hip folding roll while performing the hip folding of the supply paper with the hip folding roll. The first take-up roll and the second
The take-up roll is provided so as to be rotatable relative to the waist folding roll, and each take-up roll is provided with a paper-capture port for alternately taking the above-mentioned origami paper from the peripheral surface of the waist-folding roll to the peripheral surface of each take-up roll. The origami folded by the folding rolls is alternately distributed by the arrangement of the first and second take-up rolls having different take-up timings, and the origami of the first and second take-up rolls is taken. A conveyor belt is provided on the carry-out side for overlapping and carrying out the waist origami drawn by the first take-up roll and the waist origami drawn by the second take-up roll so that it can be used for horizontal alignment. Is.

Effect According to the present invention, only the first and second take-up rolls, which are located on the peripheral surface of the hip-folding roll on the side where the origami paper is carried out and have different take-up timings, are arranged, and the take-up speed of each take-up roll is limited. It is possible to double the waist folding processing speed of the waist folding roll (rotation speed of the waist folding roll) without receiving it. Further, on the take-up side, it is possible to perform the feeding and the side-by-side lap alignment at a stable speed without being required to follow the individual hip breaking speed.

Further, according to the present invention, the waist origami folded by the waist folding rolls is separately taken by the first and second take-up rolls alternately at different timings, while the take-out rolls of both take-up rolls are provided with both sides. The origami papers can be merged and carried out in a superposed state, and the respective origami papers can be properly supplied from the respective take-up rolls to the laterally arranging portion with a simple structure.

Further, in the case of arranging side by side for each single leaf, when the waist origami papers are aligned with each other, it is easy to be liable to bend or bend. Can be aligned (horizontally stacked),
It is possible to effectively prevent the above-mentioned frustration and the disturbance of the horizontal overlapping arrangement due to this. Further, there is an advantage that the same effect can be achieved by an inexpensive facility because the structure can be simplified and the same improvement in production efficiency can be expected without using the complicated two-layer structure.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows, as an example, a case where the waist folding roll 1 is provided with a waist folding function and a constant size cutting function in the above description, and a band 3 which is zigzag folded or the like is used as the supply paper.

Therefore, the waist folding roll 1 has both a plurality of paper mouths and a blade or a receiving blade for cutting a fixed size. The paper mouth and the blade are arranged alternately and at equal intervals. In the embodiment, the waist folding roll 1 is provided with two paper mouths 4A, 4B and the same projecting blades 5A, 5B on the peripheral surface thereof, and the paper mouths 4A, 4B and the projecting blades 5A, 5B are provided respectively. 18
Placed at 0 ° and 90 between paper mouth 4A, 4B and blade 5A, 5B.
° Be arranged.

The paper mouth 4A, 4B is for folding the supply paper in the width direction and bending it in the width direction.The embodiment shows an example of using the opening and closing clamp type jaws as shown in the figure that open and close in a timing manner with a peripheral cam or the like. . The present invention includes not only the case of using the opening and closing clamp type jaws but also the case where the suction ports are provided in a groove shape in the paper width direction to form the paper mouths 4A and 4B, or both are used together.

The paper mouth 4A, 4B narrows the fed paper strip 3 in front of its leading end and folds the waist along with the rotation of the roll. Reference numeral 2 is a waist-folding auxiliary roll that rotates relative to the waist-folding roll 1.
The waist folding assisting roll 2 has waist folding assisting blades 6A, 6B arranged 180 ° so as to be symmetrical with the paper mouth 4A, 4B.
The waist folding assist blades 6A, 6B and the paper mouth 4A, 4B face each other at the closest contact point between the hip folding assist roll 2 and the hip folding roll 1 at every 180 ° rotation with the relative rotation of the hip folding assist roll 2 and the opened paper. Mouth 4
The waist folding assist blades 6A, 6B are used to push the strip 3 in front of the leading edge of the waist folding assist blades 6A, 6B to assist the paper sniffing and to provide the folding.

Further, the hip folding assisting roll 2 is provided with the receiving blades 7A, 7B or the projecting blades. The receiving blades 7A, 7B are arranged at 180 ° so as to be symmetrical with the projecting blades 5A, 5B of the waist folding roll 1, and face each other at the closest contact points of both rolls 1, 2 to rotate the waist folding roll 1. Along with the above, the strip 3 is cut after the above-mentioned waist folding to obtain waist-shaped origami papers 3A and 3B of fixed size. In the above-mentioned embodiment, the rolls 1 and 2 constitute a rotary cutter, and the roll 1 is provided with a waist folding paper mouth.

The cutter mechanism is formed between the hip folding roll 1 and the auxiliary roll 2, and is also formed between the hip folding roll 1 and the receiving blades 7A, 7B or another roll 12 having a projecting blade as shown in FIG. Alternatively, as shown in FIG. 3, the waist-folding roll 1 is provided with only the waist-folding paper mouth, and a separate cutter mechanism is configured on the paper feed side of the strip 3. The cutter mechanism is a rotary cutter with a pair of cutter rolls or a cutter roll 13 and a fixed blade with a projecting blade 14 shown in FIG.
A rotary cutter with 15 combinations.

As described above, it is essential that the waist folding roll 1 has a waist folding paper mouth.

The first take-up roll 8A and the second take-up roll 8 of the waist origami 3A and 3B located on the waist origami carry-out side peripheral surface of the waist origami roll 1 as described above.
Distribute B. The first and second take-up rolls 8A and 8B are arranged on the circumferential surface of the waist-folding roll 1 at intervals so as to be rotatable relative to the waist-folding roll 1. The first take-up roll 8A and the second take-up roll 8B have paper catch ports 9A, 9B on their peripheral surfaces, which are arranged in a fixed relation with the paper mouth ports 4A, 4B. The paper capturing ports 9A and 9B are formed by suction ports, for example. That is, the paper catching port 9A faces the paper mouth 4A when the paper mouth 4A forms a waist origami paper and carries the peripheral surface of the waist folding roll 1 to a position which is substantially closest to the first take-up roll 8A. Paper mouth 4A
The waist folded paper 3A that has been opened and released is sucked and held from the peripheral surface of the waist folding roll 1 and taken to the peripheral surface of the first take-up roll 8A.

Further, the paper catching port 9B faces the paper mouth 4A when the paper mouth 4B forms the waist origami paper 3B and moves the peripheral surface of the waist folding roll 1 to a position which is substantially closest to the second take-up roll 8B. The waist origami paper 3B released by opening the paper mouth 4B is suction-held from the peripheral surface of the waist folding roll 1 and taken to the peripheral surface of the second take-up roll 8B.

That is, the plurality of take-up rolls are arranged such that the origami paper is alternately taken from the waist-folding roll and is carried out in the same direction. Speaking in accordance with the embodiment assuming two paper mouths 4A, 4B, the paper catching ports 9A and 9B are arranged so as to rotate with a phase difference of about 180 ° with each other, and are arranged at 180 °. Two paper mouths 4A, 4B
Are arranged so as to alternately face each other and the above-mentioned paper take-up is performed alternately. According to the same promise, three or more take-up rolls can be arranged at equal intervals on the waist-folded paper carry-out side peripheral surface of the waist-folding roll 1 according to the number of paper mouths and the rotation cycle, and the above-mentioned paper-drawing can be sequentially performed. .

FIGS. 1A to 1L sequentially show the waist folding and take-off processes according to the embodiment.

First, the strip 3 faces the paper mouth 4A of the waist folding roll 1 and the blade 6A of the waist folding auxiliary roll 2 as shown in FIGS. At the opposite position, the paper mouth 4A is in an open state, and the fed paper strip 3 is pierced in front of its leading end. blade
6A pushes the waist-folding portion of the strip 3 into the paper mouth 4A in the opened state to make the paper mouth more reliable and to give a fold.

As the waist folding roll 1 rotates, the waist folding is completed, and the projecting blade 5A and the receiving blade 7A face each other as shown in FIG.
After further separating, as shown in FIGS. 6B to 6E, the waist origami 3A is held and carried out toward the first take-up roll 8A. As described above, at the position closest to the first take-up roll 8A and the waist folding roll 1, the paper mouth 4A and the paper catching mouth 9A face each other as shown in FIG. E, and the paper mouth 4A releases the paper mouth. The waist folding paper 3A is transferred to the paper catching port 9A, and as shown in F and G, the waist folding roll 1 is pulled from the peripheral surface to the peripheral surface of the first take-up roll 8A.

On the other hand, while the waist folding paper 3A is being carried out by the paper mouth 4A toward the first take-up roll 8A, the paper mouth 4B and the blade 6B face each other as shown in FIGS. As the roll is rotated, the projecting blade 5B and the receiving blade 7B are opposed to each other as shown in the same G, and the waist origami 3B is separated from the strip 3, and the second waist origami 3B is transferred to the second take-up roll 8B as shown in the same H. And carry out, paper mouth
At the position where 4B and the paper catching port 9B face each other, the paper mouth 4B releases the paper grip, and the waist origami paper 3B is transferred to the paper catching port 9B. To the peripheral surface of the second take-up roll.

As described above, the waist origami 3A drawn on the peripheral surface of the first take-up roll 8A and the waist origami 3B taken by the second take-up roll 8B.
And the first and second take-up rolls 8A, 8 as shown in FIGS.
Conveyor belt 1 that runs endlessly along the circumference of B origami unloading side
0, from the peripheral surface of the second orienting roll 8B on the unloading origami side, and is superposedly fed between the conveyor belts 11 which run endlessly in parallel with the conveyor belt 10 and are laterally stacked on the alignment conveyor table. It is arranged sequentially. The paper catch ports 9A and 9B are the conveyor belts 1
Hold the paper catch while transferring the waist origami 3A, 3B to 0,11.

Thus, the origami papers 3A and 3B folded by the waist folding roll 1
Are alternately taken by the first and second take-up rolls 8A and 8B, and are provided for alignment and packaging.

As described above, in the conventional one in which waist folding and lateral lap alignment are performed in series at the same cycle for each single leaf, the capacity of the lateral lap aligning device is restricted and the processing efficiency (the waist fold roll Although there is a limitation in increasing the rotation speed) and there is a defect that the production efficiency is lacking, according to the present invention, the take-up timing is different because it is located at the waist origami roll-out side peripheral surface of the waist folding roll. Only by disposing the second take-up roll, it is possible to double the waist folding processing speed of the waist folding roll (rotational speed of the waist folding roll) without being limited by the take-up speed of each take-up roll.

Further, on the take-up side, it is possible to perform the feeding and the side-by-side lap alignment at a stable speed without being required to follow the individual hip breaking speed.

Further, according to the present invention, the waist origami folded by the waist folding rolls is separately taken by the first and second take-up rolls alternately at different timings, while the take-out rolls of both take-up rolls are provided with both sides. The origami papers can be merged and carried out in a superposed state, and the respective origami papers can be properly supplied from the respective take-up rolls to the laterally arranging portion with a simple structure.

Further, in the case of arranging side by side for each single leaf, when the waist origami papers are aligned with each other, it is easy to be liable to bend or bend. Can be aligned (horizontally stacked),
It is possible to effectively prevent the above-mentioned frustration and the disturbance of the horizontal overlapping arrangement due to this.

Further, although the processing efficiency can be doubled in the conventional two-sheet hanging method described above, there is a drawback that each mechanical section requires two series, such as two printing sections, which is complicated, large and expensive. For example, there is an advantage that the same effect can be achieved with the same improvement in production efficiency without using the above-mentioned complicated two-layer structure and thus the structure can be simplified, so that inexpensive equipment can achieve the same effect.

[Brief description of drawings]

FIGS. 1A to 1L are side views schematically illustrating a hip folding take-up device according to an embodiment of the present invention in the order of operation, FIG. 2 is a side view showing another example, and FIG. The side view showing another example,
FIG. 4 is a plan view schematically showing the folded form of the waist origami. 1 ... waist folding roll, 2 ... waist folding assisting roll, 3 ... strip, 3A, 3B ... waist folding paper, 4A, 4B ... paper mouth, 8A ... first take-up roll, 8B ... second Take-up rolls, 9A, 9B ... Paper catch ports.

Claims (1)

[Claims] 1. A waist folding roll having a plurality of waist folding paper mouths arranged at regular intervals on the peripheral surface of the roll, and the first take-up roll and the second take-up roll are located at the waist origami paper discharge side circumferential surface. The folding rolls are arranged so as to be rotatable relative to each other, and the first take-up roll and the second take-up roll are provided with paper catch ports for alternately taking up the origami paper from the peripheral surface of the waist folding roll to the peripheral surfaces of the take-up rolls. A conveyor belt that conveys the waist origami collected by the first take-up roll and the waist origami collected by the second take-up roll in a superposed manner is provided on the waist origami delivery side of the first take-up roll and the second take-up roll. An origami take-up device.