JPS60154043A - Head with push marking stripe - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a method for observing Oshirinji Festival in the production of paper containers.
For example, the present invention relates to a ruling head in a CAD system plotter (drafting machine and paper carton product prototype box making machine).

Conventional technology In the past, when producing paper containers, in order to add creases to the paper,
As shown in FIG. 1, a single roller provided with a ribbed edge was used to create creases on the paper.

That is, a creasing roller 6 equipped with a bar ridge 5 is rotatably provided on a creasing roller support 3 equipped with a mounting portion 2 for attaching to a creasing device, and is attached to a folding paper 7 by a roller shaft 4. By pressing and moving the surface A, the pressed lines and lines 8 were applied.

However, if this is folded along the pressed lines 8 as shown in FIG. 2, cracks will occur on the surface of the folded portion. This is because the lines are only created by pressing the paper surface from above with the bar ridges 4, so the fibers of the paper do not loosen and the lines do not form as they should.
Cracks are more likely to occur.

In addition, in this method of forming ruled lines, the thickness and quality of the paper to which it can be applied is limited, so there is a drawback that a wide variety of materials cannot be used.

As mentioned above, the present invention aims to solve the drawbacks of the conventional method by using two rollers, since using one roller for the press-line head will cause cracks on the surface and the need to modify the press-line lines. That is.

``The head with a press-rule portion according to the present invention is configured by two press-rule rollers each having a press-rule front protrusion facing each other so that the gap between the lower protrusion with press-rule lines forms a press-rule groove 11. This will be explained below based on the embodiment shown in FIGS. 3(a) to 3(c).

In FIG. 3(a), the press-rule front attachment head 9 according to the present invention has a mounting shaft 2 for making the head replaceable, as in the conventional case.
A press-rule roller is rotatably provided on a support body 3, and a press-rule line is attached to the paper 7.A straight roller holding section 1o is provided on the support body 3, and rollers projecting at right angles from both sides of the support body 3 are provided with a straight roller holding section 1o. A press-rule roller 12 having a press-rule reinforcement protrusion 5 on a shaft 11.
12 are rotatably supported in parallel by nuts 13 and 13, and the lower press-rule front protrusion gap 14 becomes the press-rule groove width.

FIG. 3(b) shows an embodiment in which a mounting shaft 16 is provided on the support body 3, and roller holding parts 10', 10' are configured to be movable from side to side by grooves 17 in a gate shape and fixed by nuts 18. By making both the left and right roller holding parts 10', 10' movable around the mounting shaft 16, the width of the pressed lines can be varied to any desired width.

In addition, Fig. 3 (C) shows that in the case of a straight roller, the roller holding part becomes thinner in Fig. 3 (a) due to the need for narrow pressing lines, and the pressing force is improved when the applied pressure strength cannot be increased. As shown in the figure, when the press-rule rollers 12, 12 are attached to the roller shaft 11 so that the press-rule reinforcement protrusions 5, 5 face each other across the tapered surface roller holding portion lO'', the downward It is possible to narrow the gap 14 between the protruding edges 5 and 5 of the creasing reinforcement material.Therefore, it is possible to provide thin creasing striations, and the roller holding part itself can be made thick to accommodate the applied pressure strength. can do.

The pressed ruled front head 9 according to the present invention has its pressed ruled roller 12.
．． It is used by pressing the 12 press-lined reinforcement edges 5, 5 against the back surface B of the folding paper 7 to form press grooves 8, 8 spaced apart by the press-ruled lines rll14.

As shown in FIG. 4, when the paper carton paper 7 processed in this way is folded with the back side inward along the pressing lines 15 formed by the pressing grooves 8, 8, the pressing lines 15 will be folded. ,
The fibers in that part are easily loosened by being pressed from the left and right by the press-line bar projecting edges 5, 5, and the fibers are loosened by bending, so that no cracks occur on the folded surface.

An example of how to set the width of the ruled line on a sheet of paper is as follows.

Paper weight 600g/rre is d13,3mm, 55
3mm for 0g/rrr, 2 for 450g/rrr
, 4mm, 400g/rd is 2.1mm, 350g
/g is 1, 8mm, 310g/rrr is l,
5mm, 1.2mm for thin paper other than 310g/rrr
For E-corrugated paperboard, it is necessary to add 1] creasing lines as appropriate depending on the thickness and quality of the paper that is folded. The scope of application is limited, and
Although there is a drawback that cracks may occur on the folded surface when folding, according to the present invention, 1. Two rollers with a width corresponding to the paper thickness are used to form two lines from the back side of the paper to form the press creases. The original pressing lines of the punching machine are created, so there is no need to modify the pressing lines, and when folded from the surface, the paper fibers will not loosen and creases will occur, and the paper will follow the original pressing lines of the box. Can be done.

In addition, while the conventional pre-print head has one roller rotating perpendicular to the paper surface, in the present invention, the two rollers are made to face each other by a roller holding part, and the pre-print pre-print head is rotated perpendicularly to the paper surface. The edge spacing, that is, the width of the pressed line groove is created, and it is possible to form any narrow pressed line.

In addition, without replacing the creasing/fronting head depending on the paper thickness, etc., you can move the gate-shaped roller holding parts 10'', 10' to the left or right, or change the roller shaft 11 relative to the tapered surface roller holding part 10''. It is also possible to make the pressed line groove width variable by moving the position up and down.

[Brief explanation of drawings]

Fig. 1 is a front view showing a conventional example of a pressed ruled front head, Fig. 2 is a cross-sectional view showing a state in which processed paper is folded, and Fig. 3 is a front view showing a conventional example of a pressed ruled front head.
Figures (a) to (C) are front views showing embodiments of the pressed ruled front attachment head according to the present invention, and Fig. 4 is a cross section showing a folded state of paper processed by the pressed ruled front attachment head according to the present invention. Figure. ■...Conventional pressed ruled front head, 2...Mounting shaft,
3... Support body, 5... Creased reinforcement flange, 6...
Pressing ruled roller, 7... Paper, 8... Pressing ruled line, 9
... Pressed ruled front head according to the present invention, 10.10'
, 10'''...roller holding part, 11...roller shaft, 12...ruling roller, 13...nut, 1
4... Pressing line bar ridge gap (pressing line bar width), 15...
Pressing lines, A: front side of the paper, B: back side of the paper. Agent Patent Attorney Makoto Kon Figure 1

Claims (1)

[Claims] A head with a press-ruled part, which is made up of two press-rule rollers each having a press-rule front protrusion on the outer periphery, which are made to face each other so that the gap between the press-rule front protrusions becomes the width of the press-rule groove.