JP2004026361A - W-folding device for continuous sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a W-folding device applicable to the manufacture of concealed postcards in the W-folded form and capable of folding up a continuous sheet into W-form quickly and stably. <P>SOLUTION: The arrangement of this W-folding device for continuous sheet is composed of a first guide part (6a and 6b) for guiding the fold-up operation along the center fold 10a of each continuous sheet 10 supplied along the specified path, a second guide part (7a and 7b) for guiding the fold-up operation along the side folds 10b and 10c of the continuous sheet folded up under guidance of the first guide part, and guide rolls 2 and 3 to pinch the sheet folded up in W-form under guidance of the first and second guide parts and guide it along the specified path. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a continuous sheet W-folding apparatus.
[0002]
[Prior art]
In recent years, so-called concealed postcards have been used as means for mailing information that is not desired to be seen by the human eye in the form of postcards. In the concealment postcard, personal information or the like is printed in a predetermined area of the paper (sheet) in the unfolded state before bonding. Conventionally, V-folding (two-folding) or Z-folding (three-folding) has been common as a form of concealing postcard.
[0003]
[Problems to be solved by the invention]
However, a concealing postcard having a V-folding form cannot print a large amount of information because there are four surfaces on which information can be printed. Further, in the concealed postcard having the Z-folded form, there are six information printable surfaces and a large amount of information can be printed. However, in the state where the adhesive surface is peeled off and expanded, the four concealed information surfaces can be printed. Since two information surfaces are printed on the front and two information surfaces are printed on the back, it is necessary to turn over the unfolded paper to see all the concealed information surfaces. ).
[0004]
Therefore, a concealed postcard having six surfaces on which information printing is possible and having a W-folded form in which the concealed information surface is easy to see in the developed state where the adhesive surface is peeled has been proposed. Conventionally, in order to manufacture a concealed postcard having a W-folding form, it has been necessary to supply a single piece of paper one by one to a general-purpose folding machine and fold it into a W shape. The technique for continuously W-folding has not been developed yet.
[0005]
For this reason, in the prior art, the production speed of concealing postcards having a W-folding form is limited by the speed of the folding machine, and there is a limit to speeding up production. In addition, in the previous process, it is necessary to cut the medium, which is continuous paper, into a single piece and then supply it to the folding machine, which increases the number of processes and, in turn, increases the possibility of mistakes. It has become. In addition, since the medium is a single piece, not only care must be taken so that there is no missing piece when the medium is set, but jamming, folding failure, folding inside the single piece paper when passing through the folding machine. Jamming may occur when discharging from the machine.
[0006]
As a result, the prior art requires a very skilled operating technique for adjusting the folding machine and the like in order to stabilize the production efficiency. Moreover, since an expensive folding machine is required as equipment, capital investment increases. Further, when it is necessary to bundle the media according to a predetermined order, the operator may mistake the order of loading the media in the conventional technique for handling single-sheet paper.
[0007]
The present invention has been made in view of the above-described problems. For example, the present invention can be applied to the manufacture of a concealing postcard having a W-folding form, and can fold a continuous sheet quickly and stably in a W-shape. The purpose is to provide.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, in the present invention, a first guide unit for guiding a fold along a central fold of a continuous sheet supplied along a predetermined path;
A second guide part for guiding folding along both side folds of the continuous sheet guided to be folded through the first guide part;
And a guide roll for sandwiching and guiding the continuous sheet folded and guided in a W shape via the first guide part and the second guide part, along the predetermined path. A W-folding device is provided.
[0009]
According to a preferred aspect of the present invention, the first guide portion includes a first guide member disposed at a position corresponding to a central fold of the continuous sheet, and a pair of symmetrically disposed with respect to the central fold of the continuous sheet. A second guide member, and the first guide member presses the central fold of the continuous sheet toward the folding direction, and the folded central fold is sandwiched between the pair of second guide members.
[0010]
According to a preferred aspect of the present invention, the second guide portion is disposed symmetrically with respect to a pair of third guide members disposed at positions corresponding to the both-side folds of the continuous sheet and a central fold of the continuous sheet. A pair of fourth guide members, wherein the pair of third guide members press the folds on both sides of the continuous sheet toward the folding direction, and the folded folds on both sides of the pair of fourth guide members. Sandwiched between.
[0011]
Furthermore, according to a preferred aspect of the present invention, the guide roll is positioned so as to sandwich the both side folds ahead of the central fold. Moreover, it is preferable to further include a cutting portion for sequentially cutting the continuous sheet output in a W-folded state via the guide roll in the width direction.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a diagram schematically showing an overall configuration of a W-folding apparatus according to an embodiment of the present invention. FIG. 2 is a diagram schematically showing a processing state of continuous paper processed by the apparatus of FIG. Further, FIG. 3 is a cross-sectional view taken along line AA of FIG. 1 and shows a configuration of the first guide portion in the apparatus of FIG.
[0013]
4 is a cross-sectional view taken along the line BB in FIG. 1 and shows the configuration of the third guide member of the second guide portion in the apparatus of FIG. Further, FIG. 4 is a cross-sectional view taken along line CC in FIG. 1 and shows the configuration of the fourth guide member of the second guide portion in the apparatus of FIG. In the present embodiment, the present invention is applied to the manufacture of a concealing postcard having a W-folding form.
[0014]
Referring to FIGS. 1 and 2, a continuous sheet (continuous sheet) 10 to be folded into a W shape is supplied via a first guide roll 1. The continuous paper 10 is formed with folding perforations 10a along the central longitudinal axis, and a pair of folding perforations 10b and 10c are formed along the longitudinal axes on both sides of the central folding perforation 10a. Has been. Further, the continuous paper 10 is formed with a perforation 10d (not shown in FIG. 1) for cutting a single piece of paper.
[0015]
The continuous paper 10 supplied via the first guide roll 1 is output from the apparatus in a state of being folded into a W shape via the second guide roll 2 and the third guide roll 3. Although not shown in the drawing, a series of marginal holes are formed on both side edges of the continuous paper 10. Then, the continuous paper 10 receives a constant tensile force from the first guide roll 1 to the third guide 3 by a well-known transport unit 4 that is disposed downstream of the third guide roll 3 and engages with a series of marginal holes. It is conveyed to the guide roll 3 along a predetermined route.
[0016]
On the other hand, on the upstream side of the first guide roll 1, a roll paper supply unit 5 having continuous paper wound in a roll shape is provided. The continuous paper 10 supplied from the roll paper supply unit 5 preferably forms a loose loop with the first guide roll 1. Due to the action of the loose loop, it is possible to suppress the tensile resistance when the continuous paper 10 passes through the apparatus to a certain extent. Instead of the roll paper supply unit 5 having continuous paper wound in a roll shape, a folded paper supply unit having continuous paper folded in a zigzag shape can also be used.
[0017]
In general, when a continuous sheet is to be folded in a W shape, unless special means are provided, “folding ridge (10a)”, “folding valley (10b, 10c)”, “both sides of paper (10e) ) "Between the guide rolls (it is difficult to make the distance between the first guide roll 1 and the third guide roll 3 substantially the same. As a result, the continuous paper is aligned along the perforations (10a, 10b, 10c). Therefore, it is difficult to fold it accurately into a W shape.
[0018]
Therefore, in the present embodiment, the first guide portions (6a, 6b) for guiding the folding along the central fold (10a) of the continuous sheet 10 between the first guide roll 1 and the second guide roll 2. Is attached. Moreover, the 2nd guide part (7a, 7b) for guiding the folding along the both-side fold (10b, 10c) of the continuous sheet 10 fold-guided through the 1st guide part is attached. Further, the second guide roll 2 is disposed to be inclined with respect to the longitudinal axis of the continuous sheet 10.
[0019]
Referring to FIG. 3, the first guide unit includes a first guide member 6 a disposed at a position corresponding to the central fold line 10 a of the continuous sheet 10 and a pair of first guide members disposed symmetrically with respect to the central fold line 10 a of the continuous sheet 10. 2 guide members 6b. In the first guide portion, the first guide member 6a presses the central fold 10a of the continuous sheet 10 in the folding direction, and the folded central fold 10a is sandwiched between the pair of second guide members 6b.
[0020]
Referring to FIGS. 4 and 5, the second guide portion is symmetrical with respect to the pair of third guide members 7 a disposed at positions corresponding to the both-side folds 10 b and 10 c of the continuous sheet 10 and the central fold 10 a of the continuous sheet 10. And a pair of fourth guide members 7b. In the second guide portion, the pair of third guide members 7a presses both side folds 10b and 10c of the continuous sheet 10 toward the folding direction, and the folded side folds 10b and 10c are between the pair of fourth guide members 7b. It is caught in.
[0021]
As described above, in the apparatus of this embodiment, the continuous paper 10 supplied via the first guide roll 1 is urged to be folded along the central perforation 10a by the action of the first guide member 6a. Next, a fold along the central perforation 10a is reliably formed by the action of the pair of second guide members 6b. Further, the continuous paper 10 is urged to be folded along both side perforations 10b and 10c by the action of the pair of third guide members 7a, and then the both side perforations 10b and 10c by the action of the pair of fourth guide members 7b. A fold along the line is reliably formed.
[0022]
Thus, the continuous sheet 10 folded and guided in a W shape via the first guide part (6a, 6b) and the second guide part (7a, 7b) has three folds finally formed by the action of the second guide roll 2. And is further guided along a predetermined route via the third guide roll 3. Here, in the second guide roll 2, the side folds 10b and 10c are sandwiched before the center fold 10a, that is, the part through which the both side folds 10b and 10c pass is more than the part through which the center fold 10a passes. It is positioned so as to be close to one guide roll 1.
[0023]
In the present embodiment, the continuous sheet 10 outputted in a W-folded state via the second guide roll 2 and the third guide roll 3 has a width by a cutting portion 8 (see FIG. 2) having a known configuration. Sequentially cut in the direction. In other words, the continuous sheet 10 is sequentially cut along the perforation 10d by the action of the cutting unit 8, and the single-fold sheets 11 that are W-folded are sequentially formed. Then, a concealing postcard having a W-folding shape is created by performing a known crimping process or the like on the single piece paper 11.
[0024]
As described above, in the W-folding apparatus according to the present embodiment, continuous paper is quickly and stably folded into a W shape, unlike the conventional technique in which single-sheet paper is folded into a W shape by an expensive general-purpose folding machine. Therefore, it is possible to speed up the production of concealing postcards having a W-folding configuration. That is, in this embodiment, it is possible to eliminate all the disadvantages in the prior art described above, and to realize a high-speed, stable, low-cost and highly reliable W-folding apparatus.
[0025]
In the above-described embodiment, for example, an auxiliary guide member for assisting in guiding the folded state of the continuous paper 10 is additionally provided between the pair of third guide members 7a and the pair of fourth guide members 7b. You can also. The auxiliary guide member may be, for example, a guide plate member that abuts the continuous paper 10 from one side and promotes a desired folded state, or a guide hole that penetrates the continuous paper 10 and promotes a desired folded state. It may be a member.
[0026]
In the embodiment described above, the continuous paper 10 is folded in a W shape. However, the present invention is not limited to this, and a continuous sheet made of an appropriate material other than paper can be folded in a W shape. Further, in the above-described embodiment, the present invention is applied to the production of a concealing postcard having a W-folding form. However, the present invention is not limited to this, and a general apparatus for folding a continuous sheet into a W shape. The present invention can also be applied to.
[0027]
【The invention's effect】
As described above, in the present invention, unlike a conventional technique in which a single sheet is folded into a W shape by a general-purpose folding machine, a continuous sheet can be quickly and stably folded into a W shape. For example, it is possible to increase the speed of production of concealment postcards having a W-fold shape.
[Brief description of the drawings]
FIG. 1 is a diagram schematically showing an overall configuration of a W-folding apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram schematically showing a processing state of continuous paper processed by the apparatus of FIG. 1;
3 is a cross-sectional view taken along line AA in FIG. 1 and shows a configuration of a first guide portion in the apparatus in FIG. 1;
4 is a cross-sectional view taken along line BB in FIG. 1 and shows a configuration of a third guide member of a second guide portion in the apparatus of FIG.
5 is a cross-sectional view taken along a line CC in FIG. 1 and shows a configuration of a fourth guide member of a second guide portion in the apparatus of FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 1st guide roll 2 2nd guide roll 3 3rd guide roll 4 Conveying part 5 Roll feed part 6a 1st guide member 6b 2nd guide member 7a 3rd guide member 7b 4th guide member 8 Cutting part 10 Continuous paper 11 Single piece paper

Claims (5)

A first guide for guiding folding along a central fold of a continuous sheet supplied along a predetermined path;
A second guide part for guiding folding along both side folds of the continuous sheet guided to be folded through the first guide part;
And a guide roll for sandwiching and guiding the continuous sheet folded and guided in a W shape via the first guide part and the second guide part, along the predetermined path. W folding device. The first guide portion includes a first guide member disposed at a position corresponding to a central fold of the continuous sheet, and a pair of second guide members disposed symmetrically with respect to the central fold of the continuous sheet, The said 1st guide member presses toward the folding direction of the center fold of the said continuous sheet, The folded center fold is pinched | interposed between a pair of said 2nd guide members. W folding device. The second guide portion includes a pair of third guide members disposed at positions corresponding to the both-side folds of the continuous sheet, and a pair of fourth guide members disposed symmetrically with respect to the central fold of the continuous sheet. The pair of third guide members press both side folds of the continuous sheet toward the folding direction, and the folded both side folds are sandwiched between the pair of fourth guide members. The W folding device according to 1 or 2. The W-folding device according to any one of claims 1 to 3, wherein the guide roll is positioned so as to sandwich the both-side folds ahead of the central fold. 5. The apparatus according to claim 1, further comprising a cutting unit configured to sequentially cut the continuous sheet output in a W-folded state through the guide roll in the width direction. W folding apparatus as described in.

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