JP3005762U - 2-step blade with shoulder - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the thrust load generated between the side of the cutting edge and the cut surface of the paper from being sustained. [Structure] The thrust load that occurs when the part (a) in Fig. 1 enters the paper is reduced by bending the paper at the shoulder part (b) to make the paper difficult to get stuck in the mold. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 It relates to the shape of a parting type blade for cutting out paper.

[0002]

[Prior art]

 Since the conventional two-step blade is for the purpose of parting off a thick piece of paper, its shape is to reduce the resistance when the paper (A) and the blade go deep as shown in Fig. 2. From (B), the shape has been trimmed.

[0003]

[Problems to be solved by the device]

 If you make a parting die with a conventional double-edged shape, the paper will get stuck in the die unless you use springs and sponges for ejection. The idea is to make the paper cut-in type so that it doesn't get stuck easily without the use of springs or sponges.

[0004]

[Means for Solving the Problems]

 Since the paper is difficult to fit in the mold, the part to be cut is the same as the conventional one, but the shape of the second step is as shown in Fig. 1 in contrast to another cutting as shown in Fig. 2 (B). Make a shape that provides a shoulder (b).

[0005]

[Action]

 The reason why the paper collapses in the mold is that the thrust load that occurs when the blade enters the paper and the cutting surface of the paper continues, but as shown in Fig. 1 (b), the shape with shoulders is provided. With this setting, the paper can be flexed, and the thrust load cannot be sustained.

[0006]

[Embodiment] This is used as the shape of a sculptured blade in which it is difficult to attach springs for spattering, sponges, etc. as shown in FIGS. 3 and 4.

[0007]

【effect】

 The height of the blade can be reduced because the sponge for ejection and the spring are not considered. For example, if the paper thickness is 0.2 mm, the height of the blade is 0.3 mm, so it can be used not only for mechanical engraving but also for engraving by chemical corrosion.

[Brief description of drawings]

FIG. 1 is a sectional view of the present invention.

FIG. 2 is a sectional view of a conventional two-step blade.

FIG. 3 is a sectional view of a mechanical engraving type.

FIG. 4 is a sectional view of an engraving mold formed by a chemical method.

Claims (1)

[Scope of utility model registration request] 1. A two-step blade having a portion (a) for cutting the paper and a shoulder portion (b) for giving the paper a bend.