JPH07100314B2 - Method for manufacturing a paper sawtooth cutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention provides an aluminum foil or a plastic foil wound in a roll, which is popular as a kitchen appliance, or a cellophane tape, which is popular as an office appliance. It relates to a saw-toothed cutter used for cutting.

<Prior Art> Conventional saw-tooth cutters for cutting aluminum foil, plastic foil or cellophane tape are all made of metal.

<Problems to be Solved by the Invention> A serrated cutter made of a metal plate often injures a human body, and a roll-shaped aluminum foil or a plastic foil used as a kitchen appliance is used to make a paper-made cutter. When the paper case was incinerated together with the case, even if the paper case became ash, there was a problem that only the metal cutter was left unburned, and the serrated sharp parts hurt the hand of the worker who handles it.

Recently, attempts have been made to replace the metal saw-tooth cutter with a paper saw-tooth cutter by cutting the paper with an industrial push-cut blade. However, there is a problem that the tip of the paper saw-toothed cutter formed by cutting is rounded and the aluminum foil or the plastic foil cannot be cut.

An object of the present invention is to solve the above problems all at once.

<Means for Solving the Problem> The solving means of the present invention is a first first V-shaped push-cutting blade arranged in parallel with an edge of a sheet of paper, which is a raw material, to press the edge of the sheet of paper. And a plurality of second V-shaped push-cut blades arranged so as to make a V-shaped cut in the middle of the V-shaped cut by the first step and the first step, so as to form a sawtooth shape on the edge of the paper. It is a method for manufacturing a paper saw-tooth cutter, which comprises a second step of pressing.

<Operation> In the first step, a plurality of V-shaped cuts are engraved on the edge of the material paper, and in the second step, a second V-shaped cut is formed in the middle of the V-shaped cuts engraved in the first step. V-shaped incision is performed to form a serrated edge on the edge of the paper. The point of this serrated blade has no roundness and is completely sharp.

<Example> FIG. 1 shows an arrangement of push-cut blades used in the first step of an example of the present invention. This figure also shows only the cutting edge line of the push-cutting blade, and FIG. 3 shows a front view of one V-shaped push-cutting blade 9 as seen from the cutting edge direction. A plurality of first V-shaped push-cut blades 9 ... 9
However, the V-shaped valley bottoms are aligned on a straight line f, and the center lines g of the respective V-shapes are arranged perpendicularly to the straight line f at equal pitches, and are planted in the grooves of the substrate 13 made of a veneer plate. The straight line f is parallel to the edge 3 of the paper to be processed, and the distance h _{3 from the} edge ₃ is, for example, about 1.
It is 7 mm. Pins 15 on the board 13 for positioning the paper.
15 are planted.

FIG. 2 shows an arrangement of push-cut blades used in the second step.
The second V-shaped push-cutting blades 10 ... 10 for making a V-shaped cut in the middle of the V-shaped cut in the first step have their V-shaped roots arranged on a straight line k, and the center line m of each V-shaped line is a straight line. The arrangement pitch of the first V-shaped press-cutting blades 9 which is perpendicular to k and which is described above.
Punches that are arranged at equal pitch p ₄ equal to p ₃ and are planted in the grooves of the board 14 made of veneer plate, and the inclined push-cut blades 11.11 for processing both edges of the sawtooth process the contour of the entire cutter at the same time. It is integrally formed with the blade 12 and is planted on the same substrate 14. Pin 1 for positioning the paper on the board 14
6.16 has been planted. These locating pins 15 or
16 is set so that the depth h ₃ of the V-shaped valley bottom in the first step and the depth h ₄ of the V-shaped valley bottom in the second step are almost equal.

FIG. 4 shows an example of the cutter manufactured by this embodiment. A V-shaped continuous sawtooth shape is formed, and the top of the mountain is not rounded because two straight lines intersect each other at an acute angle.

If necessary, the paper thus press-cut can be soaked entirely or at least in a sawtooth portion in a solution of a resin or the like to enhance its hardness.

Further, a box for accommodating a roll-shaped body of aluminum foil or plastic foil has been conventionally manufactured by a punching process using a pressing blade, but this box and the paper sawtooth cutter can be integrally formed.

<Effects of the Invention> According to the present invention, since a cutter for cutting aluminum foil or plastic foil can be manufactured from paper, when it is incinerated together with other domestic waste after use, it is completely incinerated. Further, when the box for accommodating the roll-shaped body of aluminum foil or plastic foil is integrally formed, the step of attaching a cutter to the box becomes unnecessary.

[Brief description of drawings]

FIG. 1 shows an arrangement of push-cut blades used in the first step of the embodiment of the present invention. FIG. 2 shows an arrangement of push-cut blades used in the second step. FIG. 3 shows a specific front view of the V-shaped press cutting blade 9. FIG. 4 shows the contour shape of the cutter obtained in the above embodiment. 3 ... Edge of paper 9 ... First V-shaped push-cut blade 10 ... Second V-shaped push-cut blade 11 ... Push-cut blade for processing sawtooth edge 12 ... Push-cut blade for processing cutter contour 13, 14 ... Substrate

Claims (2)

[Claims] 1. A first step of pressing the edge of the paper by a plurality of first V-shaped press cutting blades arranged in parallel with the edge of the material paper, and a V according to the first step. A paper sawtooth shape comprising a second step of pressing to form a sawtooth shape on the edge of the paper by a plurality of second V-shaped press cutting blades arranged so as to make a V-shaped cut in the middle of the V-shaped cut. Cutter manufacturing method. 2. The method for manufacturing a paper sawtooth cutter according to claim 1, wherein the material paper is a paper forming a box for accommodating an object to be cut.