JPH04216036A - Stamping device for paper material for forming paper container - Google Patents

Abstract

PURPOSE:To provide a stamping device for which a wooden pattern is not required at low cost and which can stamp rulings of all kinds of width or a paper material for forming a paper container and simultaneously provide edge cutting sections. CONSTITUTION:A plurality of ruling blades can be manufactured along the peripheral face of a roll main body 21 of a stamping roll 2, and edge cutting blades 24 can be fixed in the desired positions of the ruling blades. The ruling blades are fixed to the width of required ruling blades, and edge cutting blades 24 are fixed in the given positions, while a paper material is fed into between an elastic roll 3 and the stamping roll 2 to form the rulings and edge cutting sections simultaneously.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding device for forming ruled lines and edge-cutting portions to serve as folding lines in a paper container-forming paper material such as cardboard.

0002

[Prior Art] Paper containers such as cardboard are made by first cutting the paper material used for the container into raw materials of a desired size, and then forming ruled lines 61, which serve as folding lines, on the raw materials as shown in FIG. At the same time, a border cut portion 62 is formed at a desired portion to obtain a container raw material 63. And this container raw material 6
3 along ruled lines 61 and fix the corner portions with adhesive, stapler, etc. to form a desired paper container. Incidentally, conventionally, the following method has been used to form ruled lines 61 and edge-cut portions 62 on paper materials. That is, as shown in FIG. 6, two shafts 71, 7 are arranged above and below and rotate in reverse through a driving means.
Prepare a molding device 77 in which the protrusions 74 of a plurality of convex rings 73 provided on one shaft 71 of 2 face the concave grooves 76 of a concave ring 75 provided on the other shaft 72, By rotating the shafts 71 and 72, the paper material is passed between the two shafts 71 and 72 from one side to the other, and by sandwiching the raw material between both the rings 71 and 72, a ruled line is formed in a desired area, and then the ruled line 61 is The first method involves transporting the formed raw material to an edge cutting device (not shown) and cutting edges, and as shown in FIG. A wooden mold 83 having an arcuate cross section is formed in advance, and this wooden mold 83 is placed between molding rolls arranged above and below so that the surface is in contact with an elastic roll (not shown) made of an elastic material such as hard rubber. A second method is carried out in which the raw material is fed between an elastic roll mounted on the surface of the molding roll 84 and rotating in reverse, and the forming roll 84, and the ruled line 61 and the edge-cut portion 62 are simultaneously formed by the protrusion 81 and the edge-cutting blade 82. was.

0003

[Problem to be Solved by the Invention] Nowadays, even long construction materials in the form of poles or flat plates are housed in cardboard containers, and not just regular items such as tangerine boxes.
A wide variety of containers of different sizes and lengths are required. However, in order to manufacture such a wide variety of containers, the conventional methods and apparatuses described above have the following problems. That is, in the first method, due to the structure of the molding device 77, the distance between the rings 73 (75) and the rings 73 (75) mounted in parallel on the shaft 71 (72) cannot be narrowed sufficiently. It is not possible to obtain a container in which the width of the ruled line 61 is narrow, such as a long pole-shaped or flat-shaped container for building materials. Therefore, in such a case, ring 73 (75) and ring 7
Embossers with different spacings of 3 (75) are provided, and the raw material must pass through the emers twice. Moreover, in this method, the edges must be manually cut using an edge cutting device, resulting in very poor manufacturing efficiency. On the other hand, in a method using a wooden mold 83 like the second method, manufacturing the wooden mold 83 is very expensive, and if only a small quantity is produced, the manufacturing cost becomes extremely high. SUMMARY OF THE INVENTION In view of these circumstances, it is an object of the present invention to provide a molding device that is low-cost, has high manufacturing efficiency, and is capable of forming ruled lines and edge-cut portions on raw materials for paper containers.

0004

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a forming roll having a cylindrical roll body, and an axis thereof parallel to the axis of the forming roll and in contact with the forming roll. an elastic roll that is arranged so as to be in contact with the molding roll and rotates in a reverse direction;
A plurality of ruling blades are provided on the surface of the roll body, each of which presses a desired portion of the paper material moving while being sandwiched between the patterning roll and the elastic roll to form a ruled line perpendicular to the paper material. The edge cutting blade is provided so as to be movable in parallel in the circumferential direction along the line and to be freely fixed at a desired position, and an edge cutting blade that forms a border portion at the same time as forming the ruled line by the ruled line blade is provided so as to be freely fixed at a desired position of the ruled line blade. The gist of this paper is a molding device for paper materials used to form paper containers.

[0005]

[Operation] With the above structure, each ruled line blade is moved in parallel in the circumferential direction of the roll body to adjust the interval so that the width of the ruled line to be obtained is the same, and the blade is fixed at a desired position on the surface of the roll body. When an edge cutting portion is provided, the edge cutting blade is fixed at a predetermined position of each ruled line blade. Next, the distance between the embossed roll and the elastic roll is adjusted according to the thickness of the paper material to be embossed, and then the paper material cut into a predetermined size is fed between the embossed roll and the elastic roll. In this way,
The paper material is drawn between both rolls by the drive of both rolls, and is sent out from the other side. On the way, the part that hits the crease blade is pressed and compressed by the crease blade toward the elastic roll, forming creases. . Moreover, at the same time, the portion corresponding to the edge cutting blade is cut away to form an edge cutting portion.

[0006]

EXAMPLES The present invention will be explained in detail below with reference to examples thereof. FIG. 1 shows a first embodiment of a molding device according to the present invention, viewed diagonally from above. As shown in the figure, this embossing device 1 includes a embossing roll 2 and an elastic roll 3 that are vertically separable and movable. It is supposed to be done. The patterning roll 2 includes a roll body 21, a fixed ruled line blade 22, and three movable ruled line blades 23.
It is equipped with Fixed ruled line blade 22 and each movable ruled line blade 2
3 has two edge cutting blades 2, respectively, as shown in FIG.
A groove 25 is formed in which the holder 4 can be slidably mounted. Note that although not shown, the edge cutting blade 24 can be fixed to a desired position of the ruled line blades 22 and 23 via a fixing means such as a bolt or a latch. The fixed ruling blade 22 is fixed to the surface of the roll body 21 so as to be parallel to the axis 21a of the roll body 21. The movable ruling blade 23 is arranged parallel to the axis 21a of the roll body 21 and in close contact with the surface of the roll body 21, and has two arms 26 (only one in the figure) extending perpendicularly and parallelly from both ends. (not shown) allows it to rotate freely around the shaft 21a. As shown in FIG. 3, the arm 26 is provided with a screw hole 26a in its intermediate portion, and its head is inserted into the screw hole 26a into a sliding groove 21c formed on the side wall surface of the roll body 21. The end of the fixing bolt 27, into which the fixing bolt 27a is slidably and loosely fitted, is inserted. bolt 27
There are three nuts: a nut 27b which, when tightened, clamps the wall surface of the roll body 21 between it and the head 27a to fix the position of the bolt 27, and nuts 27c and 27d which clamp the arm 26 from both sides. 27b, 27c, 2
7d are screwed together. The elastic roll 3 is made of an elastic material such as hard rubber. In addition, in the figure, 29 is a measuring tape that serves as a guide for the fixed position of the movable ruled line blade 23.

This embossing device 1 is constructed as described above, and the ruled lines 41 and the edge cut portions 42 are formed as follows.
can be formed. (1) Loosen nuts 27b, 27c, 27d and bolt 2
The head 27a of No. 7 is slidable within the groove 21c. Then, after rotating each movable ruling blade 23 and adjusting the interval between each ruling blade 22, 23, the nuts 27b, 27c, 27
Tighten the d-bolt 27 to fix the movable ruled line blade 23 in a predetermined position. (2) Release the fixation of the edge cutting blade 24, adjust its position by sliding it, and fix it again to the desired position of the ruling blades 22, 23. Note that the operations (1) and (2) may be reversed. (3) The embossing roll 2 and the elastic roll 3 are brought into contact with each other vertically, and the distance therebetween is adjusted according to the thickness of the raw material. (4) Turn on the drive means and drive the patterning roll 2 and elastic roll 3 to rotate. (5) Both rolls 2 and 3 cut the raw material into the desired shape.
During this period, as shown in FIG. 4, the ruled lines 61 are molded and the edge cut portions 62 are formed. That is, both rolls 2
, 3, the portion of the raw material that is in contact with the scoring blades 22 and 23 is recessed toward the elastic roll 3 to form the ruled line 61, and at the same time, the portion of the raw material that is in contact with the edge cutting blade 24 is edge-trimmed to form the desired container raw material 63. It's supposed to be. This embossing device 1 is as described above, and includes the ruled line blades 22, 2.
3 along the circumferential surface of the roll body 21 and adjusting the interval, it is possible to stamp ruled lines at any interval with one machine, and at the same time, it is also possible to provide edge cutting parts. Note that this embossing device 1 may be used alone, or may be incorporated into a part of a device that performs a series of printing, such as a flexo folder glue, for example. Further, this embossing device 1 can emboss any paper material other than cardboard.

FIG. 4 shows, in half cross section, a molding roll of a second embodiment of the molding device according to the present invention. As shown in the figure, this molding roll 40 has grooves 42 formed along the circumferential direction on both sides of the roll body 41, and the head of a fixing bolt 43 is slidably fitted into the groove 42. This bolt 43 is inserted into a bolt through hole 45 provided at the end of the movable ruled line blade 44, and the nut 46
The structure is the same as the first embodiment except that the movable ruled line blade 44 can be freely moved and fixed at an appropriate position by tightening or loosening.

[0009] The molding device according to the present invention is not limited to the above embodiment. For example, in the above embodiment, there is one fixed ruled line blade, but there may be two fixed ruled line blades, or all of the fixed ruled line blades may be movable. Also, the number of all ruled line blades is 4.
Although it is a book, there may be five or more, and each movable ruled line blade may be moved using a power means or the like instead of manually. Furthermore, in the above embodiments, the elastic roll was arranged above the patterning roll, but it may be arranged below. In addition, if the crease blade is long and there is a risk that the central part of the crease blade may lift up due to the rotation of the molding roll, a groove may be formed on the circumferential surface of the middle part of the roll body, and a groove extending from the crease blade may be formed. It is also possible to adopt a structure in which the locking member faces inside this groove and is locked therein.

0010

[Effects of the Invention] Since the molding device according to the present invention is configured as described above, it is possible to form container raw materials with any ruled line width by simple operations without specially customizing a wooden mold or the like. , manufacturing costs can be reduced. Moreover, the edge cutting portion can be formed at the same time, and manufacturing efficiency can also be improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the entirety of a first embodiment of a molding device according to the present invention.

FIG. 2 is an enlarged perspective view of the molding roll portion.

FIG. 3 is a cross-sectional view taken along the line A-A.

FIG. 4 is a half-sectional view of a molding roll of a second embodiment of the molding device according to the present invention.

FIG. 5 is a plan view showing a container raw material provided with ruled lines and edge cutting portions.

FIG. 6 is a perspective view showing an example of a conventional molding device.

FIG. 7 is an exploded perspective view of a molding roll of a conventional molding device.

[Explanation of symbols]

1. Imprinting device 2　Stamping roll 3 Elastic roll 21 Roll body 22 Fixed ruled blade 23 Movable ruled blade 24 Edge cutting blade 40　Stamping roll 41 Roll body 44 Movable ruled blade 61 Ruled line 62 Edge cutting part

Claims (1)

[Claims] 1. A molding roll having a cylindrical roll body; an elastic roll arranged such that its axis is parallel to the axis of the molding roll and in contact with the molding roll; , each of which has a plurality of ruling blades configured to press a desired portion of the paper material moving while being sandwiched between the embossing roll and the elastic roll toward the elastic roll to form a ruled line orthogonal to the paper material. It is provided so that it can be moved in parallel in the circumferential direction along the surface of the main body and can be fixed at a desired position, and at the same time as the ruled line is formed by the ruled line blade, the edge cutting blade that forms the edge cutting part can be fixed at the desired position of the ruled line blade. A molding device for paper material for forming paper containers is provided.