JP2572568Y2 - Folding web making machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding web manufacturing machine for manufacturing a folded laminated web folded in a zigzag, and more particularly to impregnating a liquid such as water or a chemical solution with, for example, hand wiping or a wet cloth. The present invention relates to a folding web manufacturing machine capable of manufacturing a folding wet tissue to be used.

[0002]

2. Description of the Related Art Foldable wet tissues which have been impregnated with a liquid such as water or a chemical solution and which can be used as, for example, hand wiping are already commercially available. However, this type of conventional folded wet tissue is manufactured by a folding web manufacturing machine. The folded laminated web in a dry state is manufactured in advance, and the folded laminated web is wetted by spraying a liquid onto the folded laminated web or passing through a liquid tank, and then packaging a predetermined number of sheets. Being manufactured.

By the way, a conventional folding web manufacturing machine of this type is, for example, as shown in FIG.
The web webs B, B,
B is continuously fed out, and the respective strip-shaped webs B, B are successively cut by the cutting devices 2 and 2 according to the product dimensions, and then the fixed-size webs are sequentially folded in a zigzag manner by the folding device 4 to form a folded laminated web. It is configured to produce E '.

In the folding web manufacturing machine shown in FIG. 9, the cutting device 2 has a rotary blade roll 20 having a rotary blade provided on an outer peripheral surface of a rotary roll 21 and a fixed blade provided on an outer peripheral surface of a fixed roll 31. A fixed blade roll 30; when the rotary blade of the rotary blade roll 20 meets the fixed blade of the fixed blade roll 30, the web is cut. Further, the folding device 4 has a pair of folding rolls 41, 41 which also serve as the rotating rolls 21, 21 of the cutting device 2. In this type of folding web manufacturing machine, a smooth roll having a smooth outer peripheral surface is used as the rotary roll 21 (fold roll 41).

[0005] In the folding web manufacturing machine of FIG.
Cutting devices 2 and 2 cut the leading ends of the webs B and B respectively.
Then, the cut fixed-length webs are adsorbed on the outer peripheral surfaces of the rotating rolls 21 and 21 (folding rolls 41 and 41), respectively, and transferred to the folding portion position Q of the folding device 4, and the folding portion position Q In this example, the fixed-length webs on each side are folded in a zigzag manner to produce a folded laminated web E '.

[0006]

However, in order to manufacture a foldable wet tissue, conventionally, a foldable laminate web E 'in a dry state is first manufactured by using a foldable web manufacturing machine as shown in FIG. After that, a liquid such as water or a chemical solution is sprayed onto the folded laminated web E 'in a spray form or passed through a liquid tank to produce a folded wet tissue, so that the folded wet tissue is manufactured. Requires a step of manufacturing a folded laminated web with a folding web manufacturing machine and a step of impregnating the manufactured folded laminated web with a liquid, which makes the manufacturing process of the folded wet tissue complicated. there were. In the case where a wet tissue is manufactured by spraying a liquid after folding the web, the degree of wetness is not uniform between the outer layer portion and the inner layer portion of the folded laminated web, and sometimes moisture hardly reaches the inner layer portion. There was also a problem that sometimes.

When a folded web is manufactured by a folding web manufacturing machine, the web is wetted with a liquid in advance, and the liquid-wetted web is cut by a cutting device 2 in accordance with product dimensions. It is conceivable that the shank web is zigzag-folded by the folding device 4. However, in this case, in the conventional folding web manufacturing machine, since the flat roll is used as the rotating roll 21 of the cutting device 2 (the folding roll 41 of the folding device), the liquid-wet fixed-size web is applied to the flat roll. The folded web folded at the folded position Q is transferred to the folded position Q in a state of being in close contact (the contact area between the roll surface and the web is large and the web is hardly peeled off by the adhesive action of moisture). Folding rolls 41, 4
In some cases, it was not possible to peel off the laminated web in a liquid-wet state using a conventional folding web manufacturing machine.

An object of the present invention is to propose a folding web manufacturing machine capable of continuously manufacturing a folded laminated web in a liquid wet state.

[0009]

According to the present invention, a strip-like web fed from a base paper roll is sequentially cut by a predetermined length in a web running direction by a cutting device, and the cut fixed-length web is sequentially zigzag by a folding device. In a folding web manufacturing machine that is capable of manufacturing a folded laminated web by folding into a, equipped with a liquid wetting device that wets the band-shaped web with a liquid such as water or a chemical solution on the upstream side in the web traveling direction from the cutting position of the cutting device, With a concavo-convex surface formed with a number of small concavo-convex portions on the outer peripheral surface, as a roll for guiding the liquid-wet fixed-size web wet by the liquid wetting device and cut by the cutting device from the cutting position to the folding portion position of the folding device. It is characterized by the use of rolls.

[0010]

In the folding web making machine according to the present invention, the web strip fed from the base paper roll is wetted by the liquid wetting device before reaching the cutting device portion, and the web web is transferred to the cutting device portion in a liquid wet state. Then, the liquid-wet strip web is cut by the product size at the cutting position of the cutting device, and then the liquid-wetted fixed-length web is sequentially transferred to the folding unit position of the folding device, where it is sequentially folded in a zigzag manner and liquid-wet. Form a folded laminated web in the condition.

By the way, in the folding web manufacturing machine of the present invention, as a roll for guiding the liquid wet fixed length web cut by the cutting device to the folding portion position of the folding device, an uneven surface having a large number of small uneven portions formed on the outer peripheral surface. Uses a faced roll. When the liquid-wetted fixed-length web comes into contact with the outer peripheral surface of such a roll having an uneven surface, the contact area between the outer peripheral surface of the roll and the web becomes small, and even when the web is in the liquid-wet state, the outer peripheral surface of the roll becomes wet. The adhesive action on the surface is reduced, and accordingly, the liquid wet web is easily peeled off from the outer peripheral surface of the roll. Therefore, after the cut liquid wet fixed length web is folded at the folding section of the folding device, it is easy to peel off the liquid wet folding web from the roll of the folding section, and the folded liquid laminated web in the liquid wet state is continuously formed. Be able to manufacture.

[0012]

As described above, according to the folding web manufacturing machine of the present invention, in the manufacturing process of a series of folded laminated webs, the liquid web is used to wet the belt-like web with a liquid such as water or a chemical solution. Since the web is sequentially cut by a product size by a cutting device, and the cut liquid wet fixed length web is sequentially folded in a zigzag manner by a folding device, the liquid wet folding web can be peeled off from a roll. In addition, there is an effect that a folded laminated web in a liquid wet state can be continuously manufactured. In addition, since the liquid-wet folding web folded by the folding device is peeled off from the roll, a roll with an uneven surface having a large number of small uneven portions formed on the outer peripheral surface is used as the roll. Can easily be peeled off from a roll (roll with an uneven surface), and there is also an effect that problems such as necessity of maintenance work due to failure in peeling and occurrence of defective products can be solved beforehand.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of the present invention will be described with reference to FIGS. 1 to 8. FIGS. 1 to 3 show a folding web making machine according to a first embodiment of the present invention. FIG. 5 shows a modified example (second and third examples) of the roll 10 having an uneven surface used in the first example, and FIG.
A modification (fourth embodiment) of the liquid wetting device 5 used in the embodiment is shown, and FIGS. 7 and 8 show the folding web manufacturing machines of the fifth and sixth embodiments of the present invention, respectively.

In the folding web manufacturing machine of each embodiment,
Used to manufacture folded wet tissue used for elephant cloths and hand wipes, etc. The web used is relatively water-resistant (for example, nonwoven fabric, thick paper, paper with synthetic fiber, etc.) Is done.

The folding web manufacturing machine according to the first embodiment shown in FIGS. 1 to 3 is composed of two systems of web feeding devices 1, 1 from two base paper rolls A, wound on a wide web, respectively. B, B are continuously fed out, and the respective webs B, B are wetted with liquids such as water or chemicals by the liquid wetting devices 5, 5, respectively, to obtain liquid-wet webs C, C, and the liquid-wet webs on each side thereof. The webs C and C are cut by slitters 6 and 6 at each product width, and subsequently, the liquid-wet strip webs C 'and C' of each product width are sequentially cut by the cutting devices 2 and 2 at product length. Liquid wetting standard webs D, D (see Fig. 2)
Are folded in a zigzag manner by the folding device 4 so that the liquid-wet folded laminated web E can be manufactured continuously.

In the first embodiment, a spray device is used for each of the liquid wetting devices 5, 5, and the nozzles 5 of each spray device are respectively provided on the upper surfaces of the strip-shaped webs B, B on each side.
The liquid is sprayed from 1, 51 over the entire width of the strip web so that each strip web B can be wetted with the liquid. The amount of liquid spray per hour from the liquid wetting devices 5 and 5 is appropriately set according to the type of wet tissue to be manufactured, the paper quality of the web to be used, the web running speed, and the like.

The liquid webs C, C wet by the liquid wetting device 5 are cut by slitters 6, 6 by product width, and then transferred to the cutting devices 2, 2, where they are transported to the cutting devices 2, 2. Since the liquid-wet strip webs C ', C' are continuous in a strip shape until they are cut by the cutting device 2, even if the web is in a liquid-wet state, the webs do not wind around the rolls, and are not transported by the web. No problem occurs.

In the first embodiment, the cutting device 2 is provided as shown in FIG.
As shown in FIG.
A total of three rotary blades 22, 22, 22 at 20 ° intervals
And a fixed blade roll 30 provided with a fixed blade 32 at a position on the fixed roll 31 corresponding to the rotary blade roll 20. Each of the cutting devices 2 and 2 rotates the rotary blade roll 20 to rotate the rotary blade 2.
Each time 2, 22, 22 encounters the fixed blade 32, each liquid-wet strip web C 'running in parallel is cut by the product length.

In the folding web manufacturing machine of the first embodiment, the rotary rolls 21 and 20 of the rotary blade rolls 20 and 20 are provided.
1 is a pair of folding rolls 41 constituting the folding device 4,
41 is also used. Each folding roll (rotating roll) 4
A total of three vise 43, 43, 43 that sandwich the web are provided on the outer peripheral surface of
Each rotary blade 22, 22, 22 also functions as a tucker for pushing the web into the vise side.

The liquid-wet fixed-size webs D, D (FIG. 2) cut at the cutting positions P, P of the cutting devices 2, 2 on each side are rotated by vacuum devices 7, 7 provided on rotating rolls 21, 21. The sheet is transported to the folding position Q of the folding device 4 while being attracted to the roll outer peripheral surface. When the vice 43 of each of the folding rolls 41 and 41 and the tucker (the rotary blade 22) meet at the folding portion position Q of the folding device 4,
The liquid-wetted fixed-length webs D, D on each side are held by the vise 43 side and folded, and the folded webs D, D are successively alternately folded by the vice 43, 43 of the folding roll on each side, so that a folded laminated web E can be formed. I have. The folded webs held in a folded state by the respective vise 43, 43 are sequentially and alternately peeled off from the outer peripheral surface of the roll by the respective packer fingers 44, 44 to form a folded laminated web E.

By the way, the liquid-wet fixed-size web D cut by the cutting device 2 is transported to the folding part position Q in a state of being in close contact with the outer peripheral surface of the rotary roll 21 (folding roll 41) because it is impregnated with moisture. However, in the first embodiment, a roll 10 having an uneven surface having a large number of small uneven portions 11 formed on the outer peripheral surface is used as a rotating roll (folding roll) 21.

In the roll (folding roll) 10 having an uneven surface used in the first embodiment, as shown in FIG. 3, a small uneven portion 11 composed of a large number of lateral grooves 11a is formed over the entire outer peripheral surface of the roll. doing. When a large number of small uneven portions 11 are formed on the outer peripheral surface of the roll in this manner, the contact area between the liquid wetting fixed-size web D and the outer peripheral surface of the roll is reduced (in the illustrated example, approximately の of the conventional area). Even when the liquid is wet, the degree of adhesion to the outer peripheral surface of the roll is greatly reduced. Therefore, when the liquid-wet folding web is peeled from the outer peripheral surface of the roll by the packer finger 44, it can be easily peeled off, and even if the liquid-wet web is formed, the folded laminated web E can be continuously formed without any trouble. Can be.

The second embodiment shown in FIG. 4 and the third embodiment shown in FIG. 5 respectively show modifications of the roll 10 having the concave-convex surface shown in FIG. 3 (which becomes the rotating roll 21 and the folding roll 41). .

In the roll 10 having an uneven surface shown in FIG. 4, a large number of circumferential grooves 11b are formed on the entire outer peripheral surface of the roll at small intervals in the roll length direction to form small uneven portions 11.

Further, in the roll 10 having an uneven surface shown in FIG. 5, a large number of small projections 11c are similarly formed on the entire outer peripheral surface of the roll to form small uneven portions 11.

The roll 10 having the uneven surface of each of the embodiments shown in FIGS. 4 and 5 also has a good effect of removing the liquid wet web similarly to the roll 10 having the uneven surface of FIG. 3 to 5
In the figure, reference numeral 45 denotes an annular peripheral groove through which the packer fingers 44 enter and exit, 46 denotes a vise mounting groove, 47 denotes a tucker (rotary blade) mounting groove, 71 denotes a vacuum hole of the vacuum device 7, and 72 denotes a vacuum hole from the vacuum hole 71. This is a branched web end suction hole.

The folding web manufacturing machine of the fourth embodiment shown in FIG. 6 is a modified example of the liquid wetting device 5 of the first embodiment, but the liquid wetting device 5 of the fourth embodiment has a liquid tank. 52
Is used, and the strip-shaped webs B, B, which are continuously fed out, are instantaneously passed through the liquid tanks 52, 52, respectively, so that the webs are impregnated with the liquid.
In FIG. 6, reference numeral 53 denotes a pressing roll for pressing the liquid wet web passed through the inside of the liquid tank 52 to adjust the impregnated water content of the web.

The basic structure of the folding web manufacturing machine of the fifth embodiment shown in FIG. 7 was previously filed by the present applicant as a patent application (Japanese Patent Application No. 3-267818). In the manufacturing machine, liquid wetting devices (spray devices) 5, 5 are provided on the upstream side in the web running direction of the respective cutting devices 2, 2.
And two rolls (two-fold rolls and retard rolls) 8A and 8B are interposed between the cutting devices 2 and 2 and the folding device 4, respectively. The front roll 8A of each of the rolls is for folding the liquid-wet fixed-size web cut by the cutting device 2 into two in the length direction, and the rear roll 8B is used for the front and rear two rolls. This is to reduce the interval between the folded webs. In this folding web manufacturing machine, the folding webs on each side can be folded in a zigzag manner in a state where the overlapping width of the webs is small. Note that the detailed mechanism of the folding web making machine shown in FIG.

In the folding web manufacturing machine shown in FIG. 7, the fixed wet web cut by each of the cutting devices 2 and 2 is sequentially transferred to rolls 8A and 8B, and then folded by the folding rolls 41 and 41 of the folding device 4. In this case as well, if the cut fixed-size web is in a liquid wet state, each roll 8A,
It becomes difficult to deliver the liquid-wet fixed-size web to the 8B and the folding rolls 41, 41.

In the folding web manufacturing machine shown in FIG. 7, the rotating rolls 21, the folding rolls 8A, the retard rolls 8B of the cutting devices 2, 2 and the folding rolls 41, 41 of the folding device 4 are provided as respective rolls. Figure 3 respectively
As shown in FIG. 5, a roll 10 having an uneven surface having a large number of small uneven portions 11 formed on the outer peripheral surface is used, so that the liquid-wet fixed-size web can be reliably transferred and folded. At the position Q, the liquid-wet folding web can be easily separated from the folding rolls 41, 41.

The basic structure of the folding web manufacturing machine of the sixth embodiment shown in FIG. 8 is another one which was previously filed by the present applicant as a patent application (Japanese Patent Application No. Hei 4-20321).
In this folding web manufacturing machine, zigzag folding is performed by one web. In the folding web manufacturing machine shown in FIG. 8, a liquid wetting device (spray device) 5 is provided on the upstream side of the cutting device 2 in the web traveling direction, and three rolls 9A, 9 are provided between the cutting device 2 and the folding device 4.
B and 9C are interposed. These rolls 9A, 9B, 9
In C, the liquid-wetted fixed-size webs before and after being cut by the cutting device 2 were sequentially superimposed on each other by a small length range (by reducing the traveling speed of the preceding web), and the superposed portion was pressed. In this state, the sheet is transferred to the folding device 4 side. In the folding web manufacturing machine shown in FIG. 8, a liquid wet folding laminated web E is formed in a state in which the overlapping width of the folding webs zigzag folded each other is reduced.
Can be formed, but the detailed mechanism is not so important in the present application, and therefore the description is omitted.

In the folding web manufacturing machine of FIG. 8 as well, each liquid wet fixed length web cut by the cutting device 2 is sequentially transferred to each of the rolls 9A to 9C, and then transferred to 41, 41 of the folding device 4. Is done. By the way, the rotating roll 21 of the cutting device 2 in the folding web making machine of FIG.
As the rolls of the three rolls 9A to 9C and the folding rolls 41 of the folding device 4, FIGS.
As shown in the figure, a roll 10 with an uneven surface having a large number of small uneven portions 11 formed on the outer peripheral surface is used. The liquid-wet folding web can be easily separated from the folding rolls 41, 41.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a folding web manufacturing machine according to a first embodiment of the present invention.

FIG. 2 is a partially enlarged view of FIG.

FIG. 3 is a partial perspective view of the roll having an uneven surface in FIG. 2;

FIG. 4 is a modified example (second example) of the roll with uneven surface of FIG. 3;

FIG. 5 is a partially modified embodiment (third embodiment) of the roll with an uneven surface in FIG. 3;

FIG. 6 is a schematic side view of a folding web manufacturing machine according to a fourth embodiment of the present invention.

FIG. 7 is a schematic side view of a folding web manufacturing machine according to a fifth embodiment of the present invention.

FIG. 8 is a schematic side view of a folding web manufacturing machine according to a sixth embodiment of the present invention.

FIG. 9 is a schematic side view of a conventional folding web manufacturing machine.

[Explanation of symbols]

1 is a web feeding device, 2 is a cutting device, 4 is a folding device,
5 is a liquid wetting device 10 is a roll having an uneven surface, 11 is a small uneven portion, A is a base paper roll, B is a strip web, C is a liquid wet strip web, D is a liquid wet fixed length web, E is a folded laminated web, and P Is a cutting position, and Q is a folding position.

Claims (1)

(57) [Scope of request for utility model registration] 1. A strip web (B) fed from a base paper roll (A) is sequentially cut by a predetermined length in a web running direction by a cutting device (2), and the cut fixed-length web (D) is folded. What is claimed is: 1. A folding web manufacturing machine which is capable of manufacturing a folded laminated web (E) by sequentially folding in a zigzag manner by an apparatus (4), wherein the cutting apparatus (2) is located at a position farther from a cutting position (P) in a web running direction. And a liquid wetting device (5) for wetting said strip web (B) with a liquid such as water or a chemical solution, and a liquid wetting device which is wetted by said liquid wetting device (5) and cut by said cutting device (2). As a roll for guiding the shaku web (D) from the cutting position (P) to the folding part position (Q) of the folding device (4), with an uneven surface having a large number of small uneven portions (11) formed on the outer peripheral surface Roll (1
A folding web production machine characterized by using the above (1).