JPS5882758A - Manufacture of stamping implement - Google Patents

Abstract

PURPOSE:To shorten the time of manufacturing stamping implement as well as reduce the cost of the products by a method in which the patterns of letters, etc., are formed by injecting fine particles onto the surface of a stamping implement material closely adhered to a mold. CONSTITUTION:A mold 10 subjected to a pattern-punching process is placed on the surface of a stamping implement material 7. The stamping implement material 7 is placed on a belt conveyer 5 and a grit composed of sand, metal, etc., is injected onto the material 7 to form a concaved section 12'. The stamping implement material 10 thus obtained is impregnated with an ink to obtain a stamping implement or is used as a stamping implement as such.

Description

[Detailed description of the invention] The present invention relates to a method for manufacturing a stamping article.

Conventionally, for example, a method for producing rubber stamp tubes has been adopted in which a stamp material is housed in a mold and the mold is heated and pressed from above and below to form character protrusions on the surface.

However, this method has disadvantages in that it takes a long time for press molding and that it takes time and money to create a mold.

Therefore, the present invention is a method of removing, painting, and plating castings.

The sandblasting method or gridplast method, which is mainly used for preparing the base of metallicon, etc., or
The liquid honing method has been applied to the production of stamps in an attempt to eliminate the drawbacks of the conventional method. I'll show you.

In the figure, 1 indicates the device exterior body.

The outer casing of this device is box-shaped, and the glyphs to be sprayed are uniform so that they do not protrude outward. 2 is a spray device. The tip of this injection device 2tf has a nozzle shape 5, and the grid (sand, metal powder, etc.) is injected from this nozzle 3.

Note that this injection device 2 may use a blade wheel that rotates at high speed.

In this case, the grid will be blown towards the object at high speed by the blades of the impeller.

4 is a compressor. This compressor 4 is
It is installed inside the exterior body 1, but it can be installed outside if necessary.In addition, when the injection device 2 is used in place of a blade wheel, a 4-wheel compressor is installed. , becomes the motor for rotating the impeller.

The 5th one is a single belt conveyor that runs from the left to the right of the exterior body 1, and the 6th belt conveyor is a transfer roller @7V! , conveyor belt? 0 showing the stamping material placed on -5 Next, FIG. 2 shows a method of processing the stamp material 7. In the figure, figure (a) is stamp material 1 of the stamping supplies materials.
It shows 0.

If it is a soft material like this stamp material 10Fi sponge material, it will be difficult to be ground by the sprayed grid, and even if it is ground, the ground surface will be flat and even, and the characters will be Since it is difficult to sharply grind the stamp material into the same shape as the mold 12, a stamp material 10 that has been hardened in advance (or hardened) is used as shown in the example below.

Examples of the 100 stamp materials include the following:

Example (1) As described in Japanese Patent Publication No. 38-24714, a raw material rubber, a vulcanizing agent, a filler, etc., a high-temperature single-cell blowing agent, and a water-soluble salt powder that does not decompose and gasify at the vulcanization temperature. Add appropriate amounts of each and knead the strands to form a single sheet, or add vulcanizing agent, filler, etc. to the raw rubber, a high temperature single cell foaming agent, a low temperature open cell foaming agent, and vulcanize on top of this sheet. A suitable amount of easily water-soluble salt powder that does not decompose and gasify under temperature is added and kneaded with the strands, and the sheet bodies are laminated, then placed in a mold and vulcanized under gradual temperature changes. When using a cylindrical body produced by

Example (3) A case where a soluble crystalline substance is mixed into a solubilized polyvinyl chloride plastisol, formed into a sheet, and then gelled.

Example (When using a frozen and solidified sponge body having an infinite number of open cells.

Next, figure (b) shows the above-mentioned stamp material 10 being stamped with a mold 11.
The power is on. This mold 11 is cut out into a character shape 12 suitable for some companies, and the material is photopolymerizable resin,
It is a thin plate made of polyester resin, rubber, metal, or other material that can withstand the impact of grifts, and the thickness is appropriately selected within the range of α01 mm to α5 mm.

Next, Figure 1) shows a state in which a stamp material 10 is placed with a stamp material 11 punched into a character shape.

This stamp material 10 is the same as that of the duck explained in FIG.

As described above, the stamp material 10 made of the material of Example (1) and the mold f
1K-% It is placed on the belt conveyor 5 and sent into the sandblasting device indicated by the first WJ, and 20 to 50 mesh metal powder or glass powder is sprayed for 1 minute to S minutes. In the case of (+-), the stamp shown in Figure (C) or -, and in the case of (-), the stamp shown in Figure (E) was formed. As shown in each stamp, in the case of figure (b), the character shape 120 part of the mold body 11 is ground by the sprayed grib, and the recess 1 is formed as shown in the figure.
2', and in the case shown in Figure ←), part of the mold body 11 remains unground and other parts are ground, so that the stamp material 10 has a protrusion 11' in the shape of the mold body 11. was formed.

After washing the easily water-soluble clay from the rubber stamp manufactured as described above with water and drying it, ink is impregnated into the stamp material, and this is stored in a grip (not shown). After stamping, it was possible to stamp continuously without having to apply ink to the stamp surface each time using a stamp pad.

In addition, when a rubber stamp is manufactured in the same manner using the freeze-solidified stamp material 10 as in Example (5), it is thawed after manufacture, dried, impregnated with ink, and held in a grip (not shown). After storing the stamp material in a container and applying it for stamping, the stamp pad allows continuous stamping without the need to apply ink to the stamp surface each time a stamp is stamped.Next, 10 tons of the stamp material shown in Example (2)
#i - When a stamp is manufactured, after forming a character such as "t" on the surface, a soluble crystalline substance is dissolved and dried, and it is impregnated with ink and used for stamping.

As described above, the present invention makes it possible to obtain stamping supplies such as stamps or rollers in an extremely short period of time by using the sandblasting method or grid blasting method, which is superior to conventional stamping supplies. This produces a practical effect that cannot be achieved depending on the manufacturing method.

In addition, it is also possible to completely form characters, etc. on the surface of the roller as shown in Figure 3.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the Sandplus F device. FIGS. 2(a), 2(b), and 2(c) are explanatory diagrams of the manufacturing method. B) and E are explanatory diagrams showing interesting embodiments. FIG. 3 is an explanatory diagram in the case of a roller. 10... Stamping supplies material 11... mold that's all

Claims (1)

[Claims] Fine particles of metal, glass, etc. are sprayed onto the surface of the stamping product material that is in close contact with the mold, and the exposed surface of the stamping product material that is covered with the mold is ground by the fine particles, thereby lowering the surface. A method for producing a stamping article 0, characterized in that the mold is later removed, a character pattern, etc. is formed on the non-exposed surface of the material, and then the material is impregnated with ink to produce a stamping article, or the stamping article is made as is.