JP3628980B2 - Tissue paper manufacturing equipment and manufacturing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a tissue paper manufacturing facility and a manufacturing method used for stacking a plurality of original fabrics while folding a box-type tissue paper.
[0002]
[Prior art]
For example, the following is a conventional example of a production facility for box-type tissue paper. That is, first, a thin paper is made in a paper making machine, and this is wound up to produce a primary raw roll (generally also called a jumbo roll). Next, as shown in FIG. 9, the primary raw rolls JR and JR are plyed. The primary continuous sheets 101 and 102 fed out from a plurality of primary rolls JR and JR are set on the machine 100, wound and overlapped (divided into a plurality in the width direction), and a secondary comprising a plurality of plies. The raw fabric roll 110 is manufactured.
[0003]
The secondary material roll manufactured by the ply machine is taken out from the ply machine and then set in an inter folder (not shown). In the inter folder, the secondary continuous sheet fed from the secondary material roll is divided into a plurality of tertiary continuous sheets having the same width as the product tissue width, and the plurality of tertiary continuous sheets are folded. Stack them up. The folded laminate manufactured by the interfolder is cut at a predetermined interval in the longitudinal direction in the subsequent equipment, and becomes a product through processing such as boxing and packaging.
[0004]
On the other hand, this kind of tissue paper is bonded to each other by embossing so that plies (thin paper layers) are joined to each other so as not to be separated in use. For this reason, in the conventional equipment provided with the ply machine and the interfolder as described above, for example, as shown in FIG. 9, the primary continuous sheets 101 and 102 are overlapped in the ply machine 100 and taken up. The embossing is performed by the embossing roll 120.
[0005]
[Problems to be solved by the invention]
However, since the processing speed of the ply machine is faster than that of the interfolder, if emboss bonding is applied here, embossing cannot be uniformly applied, and ply separation is likely to occur, or paper breaks or breaks occur at the embossing portion. There are problems that paper is likely to be generated and ply bonding (overlap bonding) becomes unstable.
[0006]
This problem can be solved by lowering the processing speed of the ply machine, but naturally the processing efficiency is lowered. Further, when viewed as the entire manufacturing facility, the ply machine may become a bottleneck and the manufacturing efficiency as a whole may be reduced.
[0007]
Therefore, a main object of the present invention is to provide a technique that can uniformly apply embossing, does not easily cause ply separation, and does not easily cause tearing or breakage of paper at an embossing portion.
[0008]
[Means for Solving the Problems]
The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
A ply machine that manufactures a secondary web roll by stacking and winding a primary continuous sheet fed from a plurality of primary web rolls and slitting according to the width of the product tissue paper,
A secondary web roll manufactured by this ply machine is attached, and an interfolder that is rolled out from the secondary web roll and stacked while folding a plurality of secondary continuous sheets each having the same width as the product tissue paper,
In a tissue paper manufacturing facility equipped with
The processing speed of the interfolder is 150 m / min or less, and the processing speed of the ply machine is faster than the processing speed of the interfolder,
The ply machine is not provided with an emboss bonding means for bonding plies to each other,
Prior to the folding, the interfolder is provided with embossing joining means for embossing the secondary continuous sheet that has not been joined by embossing and joining the plies together.
A tissue paper manufacturing facility characterized by that.
[0009]
(Function and effect)
Since the processing speed in the interfolder is about 130 m / min, which is slower than the ply machine, the secondary continuous sheet is embossed in the interfolder prior to folding in the interfolder, and the ply By bonding, embossing can be more uniformly applied, ply separation is less likely to occur, and paper tearing or paper breakage at the embossing imparting portion is less likely to occur. Even if the embossing means is provided in the interfolder, the processing speed is slow, so that the folding process does not become unstable.
In particular, since it is not necessary to use an emboss bonding means in the ply machine, the processing speed of the ply machine is not reduced and the process does not become unstable.
[0010]
<Invention of Claim 2>
A ply machine that manufactures a secondary web roll by stacking and winding a primary continuous sheet fed from a plurality of primary web rolls and slitting according to the width of the product tissue paper,
A secondary web roll manufactured by this ply machine is attached, and an interfolder that is rolled out from the secondary web roll and stacked while folding a plurality of secondary continuous sheets each having the same width as the product tissue paper,
In the manufacturing method using the tissue paper manufacturing equipment provided individually;
The processing speed of the interfolder is 150 m / min or less, and the processing speed of the ply machine is faster than the processing speed of the interfolder,
In the ply machine, do not join the plies together,
In the inter folder, prior to the folding, the embossing is performed on the secondary continuous sheet that has not been joined by embossing, and the plies are joined together.
A method for producing a tissue paper.
[0011]
(Function and effect)
The same effects as those of the first aspect of the invention can be achieved.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail.
(Inter folder example)
FIG. 1 shows a folded plate type interfolder 1 to which the present invention is applied. In the figure, a secondary web roll R set on the web roll support 2 of the interfolder 1 is shown. The required number of secondary rolls R are set side by side in a direction orthogonal to the plane of the drawing. In this example, the secondary roll R is slit into the width of the product tissue paper by a ply machine (not shown) in advance. The roll roll R wound up in a plurality of times, for example, twice the width, is set. A ply machine having a structure in which the embossing roll 120 is omitted from that shown in FIG. 9 is preferably used.
[0013]
Secondary continuous sheets (hereinafter simply referred to as “sheets”) 3A and 3B fed from the secondary web roll R are fed into the folding mechanism section 20 through guide means such as guide rollers G1 and G1.
[0014]
In the folding mechanism section 20, as shown in FIG. 2, the necessary number of folded plates P, P... Are arranged side by side to form a folded plate group 21, and a pair of folded plates P, P. Guide rollers G2, G2 and guide round bar members G3, G3 for guiding the sheets 3A, 3B, respectively, are arranged at appropriate positions, and a laminate 30 is folded and stacked below the folded plates P, P. A conveyor 22 for receiving and transporting is provided.
[0015]
A folding mechanism using this kind of folded plates P, P... Is known, for example, from US Pat. No. 4,052,048 and is generally called a folded plate type, and is shown in FIG. As described above, the sheets 3A, 3B,... Are stacked while being folded in a Z-shape, and the side edges of the adjacent sheets 3A, 3B,.
[0016]
The relationship between the folding mechanism and the folding plate is shown in FIGS. Briefly described, as shown in FIGS. 4 to 7, first, a pair of sheets 3A and 3B is guided to each folded plate P. At this time, the sheets 3A and 3B are side end portions by a guide round bar member G3. Guided while being shifted in position so that they overlap each other. Here, assuming that the sheet whose side edge overlaps with the lower side when guided by the folded plate is the first sheet 3A, and the sheet that overlaps with the upper side is the second sheet 3B, these sheets 3A, 3B, as shown in FIG. 3 and FIG. 5, the side end e1 that does not overlap the second sheet in the first sheet 3A is folded back to the upper side of the second sheet 3B by the side plate P1 of the folded plate, As shown in FIGS. 3 and 6, the side end e2 of the second sheet 3B that does not overlap the first sheet 3A is folded downward so as to be drawn onto the folded plate from the slit P2 of the folded plate P. At this time, as shown in FIGS. 3 and 7, the uppermost folded end e3 of the sheet 3A folded and stacked on the upstream folded plate P is moved from the slit P2 of the folded plate P to the second sheet 3B. Folded part It is guided to. Thus, each sheet 3A, 3B... Is folded in a Z shape and the side edges of the adjacent sheets 3A, 3B are crossed with each other. become.
[0017]
In this way, the folded laminate 30 manufactured by the interfolder 1 is cut at a predetermined interval in the longitudinal direction in the subsequent equipment, and becomes a tissue paper product through processing such as boxing and packaging.
[0018]
According to the present invention, in such an inter-folder, emboss bonding between plies is performed prior to folding. Specifically, as shown in FIG. 1, the sheet guide from the exit side of the slitter device (not shown) to the folding mechanism unit 20 is particularly preferably provided in the sheet guiding path from the raw roll support unit 2 to the folding mechanism unit 20. the route, in which providing the embossing bonding apparatus 10. For example, as shown in FIG. 8, the emboss bonding apparatus 10 includes a pair of rolls 11 and 12 having embossed protrusions 11 a on the outer peripheral surface of one roll 11, and sheets 3 </ b> A and 3 </ b> B between the rolls 11 and 12. It is desirable to apply embossing with a pin. Thus, it is possible to emboss the sheets 3A and 3B being transferred from the raw roll support part 2 to the folding mechanism part 20 to join the plies together. In this case, the operation speed of the interfolder is preferably 150 m / min or less, particularly 120 to 140 m / min.
[0019]
Each folded plate P the embossing bonding apparatus 10, provided in correspondence with the P ..., a pair of sheet 3A that Desa feed for one foldable plate P, both 3B, is treated with one of the embossing bonding apparatus 10 It is desirable to configure as follows. FIG. 8 shows an example of the embossing roll 11 corresponding to the arrangement form of the embossing bonding apparatus 10. Although the emboss bonding (applying) position in each sheet 3A, 3B can be determined as appropriate, as shown in the drawing, it is common to perform emboss bonding 3e, 3e at both ends in the width direction of each sheet 3A, 3B. ,desirable.
[0020]
As described above, the present invention performs the emboss bonding between the plies in the interfolder 1, so that the emboss can be more evenly applied and the ply separation compared to the conventional example in which the emboss bonding is performed with the ply machine having a relatively high operation speed. Is difficult to occur, and tearing or breaking of the paper at the embossing portion is less likely to occur. Even in this case, since the operation speed is low, the folding process does not become unstable.
[0021]
(Other)
Needless to say, the present invention can be applied not only to the folded plate type interfolder as in the above example but also to other types, for example, a roll type interfolder. Further, the present invention is, for example, a type in which an original fabric roll having the same width as the product tissue is set, or a slitter having a width more than twice the width of the product tissue and provided in the interfolder prior to folding. Therefore, it can be applied to a known interfolder such as a type in which the product is divided into continuous sheets having a tissue width. However, the present invention is an inter-folder of the type in which the raw roll R which is slit into the width of the product tissue paper in advance by a ply machine and wound up at a multiple of the width of the product tissue paper is set as in the illustrated example. Particularly preferred.
[0022]
In addition, the present invention can be easily applied to existing tissue paper manufacturing equipment that includes a ply machine and an interfolder separately, divides the primary raw roll to some extent by the ply machine, and further divides the product width in the interfolder. There are advantages. Particularly in this case, by not providing the ply machine with the emboss bonding means as described above, it is possible to stabilize the processing without reducing the processing speed of the ply machine. However, the present invention is not limited to this, and emboss bonding may be performed by a ply machine and an interfolder.
[0023]
【The invention's effect】
As described above, according to the present invention, embossing can be applied uniformly, ply separation is unlikely to occur, and paper tearing and paper breakage at the embossing application portion are less likely to occur.
[Brief description of the drawings]
FIG. 1 is a side view of an interfolder according to the present invention.
FIG. 2 is a front view of a folding mechanism unit.
FIG. 3 is a longitudinal sectional view showing how to fold.
FIG. 4 is an enlarged perspective view of a main part of a folded plate portion.
FIG. 5 is an enlarged perspective view of a main part showing how to fold.
FIG. 6 is an enlarged perspective view of a main part showing how to fold.
FIG. 7 is an enlarged perspective view of a main part showing how to fold.
FIG. 8 is an enlarged plan view of a main part showing an embossing device portion.
FIG. 9 is a schematic view of a conventional ply machine.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Inter folder, 2 ... Original fabric roll support part, R ... Secondary original fabric roll, 3A, 3B ... Secondary continuous sheet, 10 ... Embossing joining apparatus, 20 ... Folding mechanism part.

Claims (2)

A ply machine that manufactures a secondary web roll by stacking and winding a primary continuous sheet fed from a plurality of primary web rolls and slitting according to the width of the product tissue paper,
A secondary web roll manufactured by this ply machine is attached, and an interfolder that is rolled out from the secondary web roll and stacked while folding a plurality of secondary continuous sheets each having the same width as the product tissue paper,
In a tissue paper manufacturing facility equipped with
The processing speed of the interfolder is 150 m / min or less, and the processing speed of the ply machine is faster than the processing speed of the interfolder,
The ply machine is not provided with an emboss bonding means for bonding plies to each other,
Prior to the folding, the interfolder is provided with embossing joining means for embossing the secondary continuous sheet that has not been joined by embossing and joining the plies together.
A tissue paper manufacturing facility characterized by that. A ply machine that manufactures a secondary web roll by stacking and winding a primary continuous sheet fed from a plurality of primary web rolls and slitting according to the width of the product tissue paper,
A secondary web roll manufactured by this ply machine is attached, and an interfolder that is rolled out from the secondary web roll and stacked while folding a plurality of secondary continuous sheets each having the same width as the product tissue paper,
In the manufacturing method using the tissue paper manufacturing equipment provided individually;
The processing speed of the interfolder is 150 m / min or less, and the processing speed of the ply machine is faster than the processing speed of the interfolder,
In the ply machine, do not join the plies together,
In the inter folder, prior to the folding, the embossing is performed on the secondary continuous sheet that has not been joined by embossing, and the plies are joined together.
A method for producing a tissue paper.

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