JPH09104989A - Member for punching die and production of punching die using this member for punching die - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily obtain a sharp blade die by an etching treatment. SOLUTION: A first protective resist film 2 is provided with second protective resist films 3 of the size smaller in the width size than the width size of the first protective resist film formed near both sides of the first protective resist films. An etching liquid 5 is injected from an etching liquid injection nozzle to a steel plate 1, by which the etching liquid 5 is brought into collision against the one surface of the steel plate 1 having the first and second protective resist films 2, 3 to execute etching. Punching blades 8 are thus formed on the steel plate 1 in the lower part of the first protective resist film 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a die-cutting member used for punching a sheet-shaped label or a seal, and a die-cutting manufacturing method using the die-cutting member. The present invention relates to a die-cutting member for forming a mold, and a die-cutting manufacturing method using the die-cutting member.

[0002]

2. Description of the Related Art A conventional die-cutting member for punching out a sheet-like label or a seal is a steel plate 5 as shown in FIG.
1 and a protective resist film 52 provided on one surface of the steel plate 51. A protective resist film 52 is provided on one surface of the steel plate 51 so as to form a desired pattern of a cutting blade.

In such a die-cutting member, a protective resist film 51 is applied on one surface of a steel plate 51, a convex negative film is provided on the protective resist film 51, ultraviolet rays are exposed from above, and development and hardening treatments are applied to the die-cutting member. Pattern can be made.

In the die-cutting manufacturing method of the prior art 1, as shown in FIG. 6, the etching liquid 62 is jetted from the etching liquid jetting nozzle 61 to the die-cutting member. Further, as shown in FIG. 7, after performing main etching by spraying an etching solution until an edge remains in the center of the protective resist film 52,
The protective resist film 52 is peeled and removed, and the exposed edges are finish-etched to form a pattern of the punching blades 53, as shown in FIG.

By the above steps, as shown in FIG.
A punching die having the desired shape of the punching blade 53 is obtained (see Japanese Patent Publication No. 57-27938).

Further, as a die-making manufacturing method of the prior art 2, the protective resist film side is fixed downward and fixed to the rotating plate,
There is a die-making manufacturing method by an etching process in which a steel plate is given a rotational motion and an etching liquid is sprayed from below the steel plate for etching (see Japanese Patent Publication No. 5-65591).

[0007]

However, in the prior art 1, when the projection shape formed by the main etching is formed on the cutting blade by the finish etching processing, the etching processing of the steel plate 51 progresses to the same extent as the projection shape. It will be. By using such an etching process, in particular, the punching blade 53 having a sufficient height of the punching blade 53 that is 50% or more of the plate thickness dimension of the steel sheet 51 with respect to the steel sheet 51 having a steel sheet thickness dimension of 0.5 mm or less. If a skirt is to be formed, there is a risk that the skirt portion that should serve as the base of the punching blade 53 may penetrate.

When the cutting edge of the cutting blade 53 is viewed in an enlarged plane as shown in FIG. 10, a burr 54 is formed at the tip of the cutting edge.
Therefore, there is a problem that it is difficult to uniformly punch and cut a sheet-shaped label or the like at the time of punching.

Further, in the prior art 2, it is necessary to fix the protective resist film side downward to the rotating plate and to give a rotary motion to the steel plate, in order to rotate the mounting member for mounting the steel plate or the mounting member. However, there is a problem in that the mechanism and the device are complicated and cannot be easily manufactured.

Therefore, it is an object of the present invention to provide a blade member capable of easily manufacturing a sharp punching blade mold by a well-known method of manufacturing a punching mold by etching.

Another object of the present invention is to provide a method of manufacturing a die that can easily manufacture a sharp punching blade die even by a well-known method of producing a die by etching.

Further, another technical object of the present invention is to provide a method for manufacturing a punching die which can produce a sharp punching blade die even if a thin steel plate is used.

[0013]

According to the present invention, a steel sheet to be etched and a first protective resist film provided on one surface of the steel sheet for forming a desired pattern of a cutting blade on one surface of the steel sheet. And a pair of second protective resist films provided on one surface of the steel plate in the vicinity of both sides of the first protective resist film, wherein the second protective resist film is the first protective resist film. A die-releasing member having a width smaller than that of the protective resist film is obtained.

According to the present invention, the steel sheet has a thickness of 0.5 mm or less, and a dimension between the first and second protective resist films is 0.2 mm or less. A characteristic die-cutting member is obtained.

Further, according to the present invention, a first protective resist film for forming a desired pattern of the punching blade is provided on one surface of the steel sheet, and the etching solution is sprayed onto the steel sheet, and the etching solution is applied to the steel sheet surface. In the manufacturing method of the die for forming the punching blade by colliding with each other to perform the etching treatment,
After providing a pair of second protective resist films having a width smaller than the width of the first protective resist film in the vicinity of both sides of the protective resist film, the steel plate is sprayed with an etching solution to form the steel plate. A method for manufacturing a die is characterized in that the etching solution is caused to collide with the above to perform an etching treatment, and the punching blade is formed on the steel plate below the first protective resist film.

[0016]

According to the die-releasing member of the present invention and the die-releasing manufacturing method using the die-releasing member, the second protective resist film having a width dimension smaller than that of the first protective resist film is formed. It is provided on a steel plate and is used as a die-cutting member.

When an etching solution is sprayed onto this die-cutting member to cause one side of the steel sheet having the first and second protective resist films to collide with the etching solution, the steel sheet is etched by the etching solution to form the first and second sheets. A forming portion is formed on the steel plate below the second protective resist film.

Further, as the etching process is carried out,
The second protective resist film, which has finely set dimensions, is naturally removed during the etching process, so that the protrusion forming portions are formed on both sides of the first protective resist film. When the etching liquid is further collided with the steel plate surface, the etching liquid sprayed on the formation portion below the second protective resist film is reflected and hits the formation portion below the first protection resist film.
After the first protective resist film is removed, the etching liquid collides from above the forming portion as well, so that the tip of the forming portion is sharply processed.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a die-cutting member of the present invention.

Referring to FIG. 1, the die-cutting member comprises a steel plate 1 to be etched, and a first protective resist provided in a thin film strip shape to form a desired die-cutting blade pattern on one side of the steel plate 1. And the membrane 2.

Further, a second protective resist film 3 is provided on one surface of the steel plate 1 near both sides in the width direction of the first protective resist film 2. The second protective resist film 3 is the first
The width dimension is smaller than the width dimension of the protective resist film 2.

Here, the first protective resist film 2 has a pattern of a cutting blade in the longitudinal direction and the width direction in the lateral direction.

As described in the conventional example, the die-releasing member is obtained by applying the first and second protective resist films 2 and 3 on one surface of the steel plate 1 and providing a convex negative film on the protective resist films 2 and 3 and exposing the ultraviolet rays from above. Then, the pattern of the cutting blade is formed by performing development and hardening treatment. At this time, with respect to the plate thickness dimension of the steel plate 1,
A pattern is provided by setting the widthwise dimensions and the mutual intervals of the first and second protective resist films 2 and 3.

Next, a method of manufacturing a die for forming a die cutting blade using the above die cutting member will be described with reference to FIGS. 2 to 4.

As shown in FIG. 2 from the state shown in FIG. 1, the die-cutting member is provided with the etching solution 5 from the etching solution jet nozzle 4 on one surface of the steel plate 1 having the first and second protective resist films 2 and 3. It is jetted and the etching liquid 5 is collided with one surface of the steel plate 1 to perform an etching process. At this time, since the first protective resist film 2 has a larger widthwise dimension than the second protective resist film 3, the widthwise dimension of the steel plate 1 below the second protective resist film 3 is the first dimension. The etching process is performed narrower than the widthwise dimension of the steel plate 1 below the protective resist film 2.

Further, as shown in FIG. 3, the etching solution 5 is sprayed until the edge remains in the center of the first protective resist film 2 to perform the main etching. After that, the first protective resist film 2 is peeled and removed, and the exposed edges are finish-etched to form a pattern of the cutting edge, as shown in FIG.

In the intermediate step of the etching process shown in FIG. 3, since the forming portion 6 of the steel plate to be the punching blade is subjected to the etching treatment together with the additional forming portions 7 formed on both sides of the forming portion 6, the width dimension is changed. The height of the narrow additional forming part 7 is
Etching is performed in the height direction at a stage earlier than the height dimension of the forming portion 6.

Further, since the enching liquid that has collided with the additional forming portion 7 is reflected by the surface adjacent to the forming portion 6 and collides with the forming portion 6, the forming portion 6 has the sharp cutting blade 8 shown in FIG. The shape of is obtained. Through the above steps, the punching blade 8 having the same pattern as that of the punching punching blade 53 shown in FIG. 9 is formed.

An example of the die-cutting method manufactured by the die-cutting manufacturing method using the above-mentioned die-cutting member will be described below.

Various experiments were conducted according to a method of manufacturing a die using a die member. A die was selected from the samples A to E by etching.

The steel plate 1 of the die-cutting member shown in FIG. 1 has a thickness t of 0.40 mm, 0.45 mm, and 0.5 mm.
I prepared a variety of things. In addition, a width dimension W1 (mm) of the first protective resist film 2, a width dimension W2 (mm) of the second protective resist film 3, a dimension S between the first and second protective resist films 2 and 3 described below. (Mm) was selected and the die-cutting members A to E in which the first and second protective resist films 2 and 3 were formed on the steel plate 1 were prepared, and the die-cutting was formed by etching.

W1 (mm) W2 (mm) S (mm) A 0.30 0.10 0.10 B 0.32 0.15 0.15 C 0.32 0.15 0.20 D 0.32 0 .20 0.15 E 0.32 0.20 0.20 As a result of this experiment, in each of the die-cutting members A to E, a punching blade having a sharp tip with no burr, leaving a sufficient plate thickness dimension of the steel plate 1. Could be formed. In particular, die-cutting member B
Was the most ideal blade type. Further, when a label removing test was conducted by using these die-cutting members A to E, good label removing was possible in all cases.

The die-cutting member generally has a thickness of 0.5 m.
When it is more than m, it is not preferable because it is inferior in economical efficiency in terms of material cost and weight. Further, if the steel plate 1 is too thin, it is likely to be deformed, which is also not preferable.

Therefore, the steel plate 1 has a plate thickness of 0.5.
mm or less and the height of the punching blade is 5 of the plate thickness dimension of the steel plate 1.
If it is formed by etching to 0% or more, it becomes an ideal blade shape. In order to satisfy such a condition, the dimension between the first and second protective resist films 2 and 3 is set to 0.2.
It has become clear that the thickness should be selected to be less than or equal to mm.

The second protective resist film 3 is the steel plate 1
Is provided on at least one side of the first protective resist film 2 on one side of the above, and may be provided on the one side of the steel sheet as required.

Further, as shown in FIG. 2, an etching solution 5 is sprayed downward from the etching solution spraying nozzle 4 to the die-cutting member, and the etching solution 5 is made to collide with the steel plate 1 to perform the etching process. However, conversely, with the die-cutting member on the upper side, the etching liquid jet nozzle 4 to the etching liquid 5
Can also be sprayed upward and the etching liquid 5 can be made to collide with the steel plate to carry out the etching process to form a punching blade having a sharp tip.

[0037]

As described above, the die-cutting member of the present invention is produced by applying the first and second protective resist films on one surface of the steel sheet to form the pattern of the die-cutting blade. Since the pattern is provided by setting the widthwise dimension and the mutual interval of the first and second protective resist films with respect to the plate thickness dimension of the steel sheet, the die-cutting member is formed by the same pattern forming method of the blade as the conventional one. Is easily obtained.

According to the method of manufacturing the die using the die removing member, the second protective resist film is provided in the vicinity of both sides in the width direction of the first protective resist film, and the second protective resist film is used as the first protective film. By setting the width dimension smaller than the width dimension of the resist film and performing the etching treatment, it is possible to easily manufacture a blade die having a sharp cutting edge without burrs even by the etching treatment which is the same as the conventional etching treatment.

Further, when the projection shape formed by the main etching is formed into a punching blade having a sharp cutting edge by finish-enching, the etching of the steel sheet also proceeds to the same extent as the projection shape. With such an etching process,
In particular, it is possible to form a punching blade having a sufficient punching blade height that is 50% or more of the plate thickness dimension of a steel sheet with respect to a steel sheet having a steel sheet thickness dimension of 0.5 mm or less.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a die-cutting member of the present invention.

FIG. 2 is a cross-sectional view showing an initial step in an embodiment of a method for manufacturing a die for forming a die blade by an enching process using the die-cutting member of FIG.

FIG. 3 is a cross-sectional view showing an intermediate step of an etching process using the die-cutting member of FIG.

FIG. 4 is a cross-sectional view showing a final step of etching processing using the die-cutting member of FIG.

FIG. 5 is a cross-sectional view showing a conventional die-cutting member.

6 is a cross-sectional view showing an initial step of forming a die by an enching process using the die-cutting member of FIG.

7 is a cross-sectional view showing an intermediate step of the etching process of FIG.

8 is a cross-sectional view showing a final step of the etching process of FIG.

FIG. 9 is a plan view of a punching die showing a conventional punching blade pattern.

FIG. 10 is an enlarged plan view showing a blade edge of a conventional punching blade.

[Explanation of symbols]

 1, 51 Steel plate 2 First protective resist film 3 Second protective resist film 4, 61 Etching liquid injection nozzle 5, 62 Etching liquid 6 Forming part 7 Additional forming part 8, 53 Extracting blade 52 Protecting resist film

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B31B 1/20 B31B 1/20

Claims (3)

[Claims] 1. A die-cutting member comprising a steel plate to be etched and a first protective resist film provided on one surface of the steel plate to form a desired pattern of a cutting blade on one surface of the steel plate. A pair of second protective resist films provided on one surface of the steel plate in the vicinity of both sides of the protective resist film of 1;
The die-cutting member, wherein the second protective resist film has a width dimension smaller than that of the first protective resist film. 2. The die-cutting member according to claim 1, wherein the steel plate has a plate thickness dimension of 0.5 mm or less.
And the dimension between the second protective resist films is 0.2 mm.
The following is a die-cutting member. 3. A first protective resist film for forming a desired pattern of a cutting blade is provided on one surface of a steel sheet, an etching solution is sprayed onto the steel sheet, and the etching solution is made to collide with the steel sheet surface to perform an etching treatment. A pair of second protective resists having a width dimension smaller than the width dimension of the first protective resist film in the vicinity of both sides of the first protective resist film. After the film is provided, an etching solution is sprayed on the steel sheet, and the etching solution is caused to collide with the steel sheet to perform an etching process.
5. The method for manufacturing a die, comprising forming the punching blade on the steel plate below the protective resist film.