KR800000828B1 - Molding method for shoe accessory - Google Patents

Abstract

This invention is related to the method to from a strong and tough rubber plateform with composite of crude rubber and synthetic rubber components. This method comprises the following process: said rubber plate(10) was formed by a conventional press, then it was forced to pass under a longitudinally moving knife to form a rubber plateform profile having ups(4) and downs and flat area 5 to be inserted, finally it was cut to saw-toothed form by a rotating cutter knife(7).

Description

Molding method of rubber feet

1 is an exemplary embodiment of a state in which the rubber band of the present invention is injection molded.

2 is a perspective view of a molded rubber stage.

3 is a perspective view of a longitudinal knife of the present invention.

4 is a perspective view of a model rubber band according to the practice of the present invention.

5 is an exemplary view of forming a serrated recessed portion of the present invention.

6 is a perspective view of the completed rubber band of the present invention.

The present invention is to mix the raw rubber and synthetic rubber in a suitable ratio to form a strong and robust conventional rubber band, and to force it through a known longitudinal knives, the shape of the rubber band undulating portion and the rubber piece by a conventional mechanical processing method The present invention relates to a method for forming an oral rubber thigh for continuously cutting and forming a tooth-shaped recessed portion as a rotating knife cutter. Conventional rubber shoe bands are formed by using a single mold that is heated and press-molded as a press machine using a simple single mold, so that only one mold can be molded. The defects had to be changed by using different types of molds in different shapes and used differently. In addition, since the rubber sheets produced as the basic materials are molded, the end of the product has weak strength and tensile strength and many defective products. In addition, the production efficiency was low, and the length of the product was limited to one, so it was dependent on the length of the required use, and according to the large and small shoes, many lost items were cut off when used, resulting in an uneconomical defect.

The present invention eliminates the defects and drawbacks of the prior art, and unlike the conventional hot press molding method by the conventional mold, the shape is changed according to the adjustment of the tooth shape or the tooth spacing of the rubber rubber band, it can be deformed and produced in various shapes, As a replacement for the cut knife type, it can be sculpted into various shapes to obtain various types of rubber bands, and it is possible to freely cut and use the necessary lengths even when using rubber bands with long lengths. The product can be efficiently mass-produced, and the product is strong and robust, so that the invention can be used for a long time. The manufacturing process of the present invention will be described in detail with reference to the accompanying drawings.

EXAMPLE

[Step 1 (Synthetic Rubber Blending Process)]

The synthetic rubber composition obtained by sufficiently mixing and stirring the mixture was forcibly injection-formed in a square plate 1 using a known extruder to continuously inject and form a four-bar rod-shaped rubber band, which was placed in a high-pressure steamer and steam pressure of 4 kg. Steam for 50-65 minutes at / cm 2.

Through such a treatment, a cross-section rectangular rubber band 2 is obtained.

[2nd process (forming process of model rubber stand)]

The known longitudinal knife (3) (3 ') (3 ″) shown in FIG. 3 is fixed using the rubber band (2) obtained above as a base material, and the rubber band (2) is forced through the conventional mechanical method. By making a continuous incision in the vertical line, the shaped rubber bands 10, 10 ', 10 " formed with the shaped relief portion 4 and the subtractive piece 5 shown in Fig. 4 are formed.

[3rd step (sawtooth shaping process)]

The model rubber band 10, 10 ', 10 ", etc., formed in the second step are moved to the insert rollers 6, 6' shown in FIG. By continuously cutting the tooth recess 8, a product of rubber bands 9, 9 'and 9 " is obtained.

형,U형,｜형등의 칼날형에 따라서는 톱니모양 요입부(8)가 각각 달리 여러 가지 모양으로 변형 조성할수 있게되어 다양한 모양으로 쉽사리 고무 모양대를 성형할 수가 있는 효과가 있고, 또 고무모양대는 연속적으로 기장이 길게 제조케되므로 필요한 크기에 따라 이용 할수 있으며 종래의 모양에 따라 형틀을 변형 각입한 수십종류의 형틀을 비치하여 프레스 성형에 의한 제품보다 월등 능률적으로 량산할수 있고, 또 우수제품을 다양한 모양으로 쉽사리 변형 생산할수 있는 편리한 이점이 있으며 제품의 질에 변화 없는 강인하고 견고한 단일제품을 얻을 수 있는 효과가 있다.Rubber shaped strips (9) (9 ') (9 ″) molded by such a process are used by fitting the front windshield part to the shape of longitudinal knife (3) (3') (3 ″). According to the present invention, the shape recorder 4 and the subtractive piece 5 are formed in a thicker shape in various shapes, and the width intervals can be freely adjusted to be wider or narrower. But not on the rotating knife knife (7),

According to the blade type such as mold, U shape, etc., the tooth-shaped indentation part 8 can be deformed and formed into various shapes, so that the rubber band can be easily formed into various shapes. Since the stand is manufactured with a long length continuously, it can be used according to the required size.It has dozens of types of molds modified and modified according to the conventional shape, so that it can be mass produced more efficiently than the products by press molding, and also excellent products. It has the advantage of being able to easily transform the product into various shapes and has the effect of obtaining a robust and solid single product without any change in product quality.

Claims (1)

The rubber leg is formed by continuously forming a tooth-shaped recessed part as a rotating cat knife, in which a rubber band is formed by an injection molding machine, and then a longitudinal knife is passed through to form a shape relief portion and a subtractive piece. Molding method.

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