CN204622396U - New type rubber preform die structure - Google Patents

Abstract

The utility model discloses a novel rubber preformed mouth structure, which comprises a body and a mouth shape. The center of the body is a mouth shape uniformly dispersed, and the mouth shape includes at least five openings with the same structure. The openings are composed of The center of the body extends outward. The structure design is simple and reasonable, and the yield rate in the production process is improved.

Description

New rubber preformed die structure

technical field

The utility model belongs to the technical field of rubber preforming, in particular to a novel rubber preforming mouth structure.

Background technique

The mouth shape of the same type of rubber preforms currently on the market is generally in the shape of a cross. In this way, for the production of large products, since the rubber is concentrated and distributed at four points in the central stage, the flow distance of the rubber is increased, and the product is prone to sulfur marks, which affects the performance of the product. In addition, if the heavy cross shape is cut, it will also cause the rubber shape to be thick in the middle and thin on both sides, thus affecting the yield of production. The schematic diagram shown in Figure 1.

Utility model content

The purpose of this utility model is to propose a new type of rubber preformed die structure, which overcomes the above-mentioned deficiencies of the prior art. Its structure design is simple and reasonable, and the yield rate in the production process is improved.

In order to achieve the above-mentioned design purpose, the technical scheme that the utility model adopts is as follows:

A new type of rubber preformed mouth structure, including a body and a mouth shape. The center of the body is a uniformly dispersed mouth shape. The mouth shape includes at least 5 openings with the same structure, and the openings extend outward from the center of the body. .

Preferably, the joint between two adjacent mouth shapes is a sharp angle structure.

Preferably, the mouth shape includes 6 openings with the same structure.

The beneficial effect of the novel rubber preformed die structure described in the utility model is that its structural design is simple and reasonable, and the yield rate in the production process is improved.

After molding, the thickness of the rubber is uniform, and the rubber weight distribution is uniform, which shortens the welding distance of the rubber during the vulcanization process, thereby reducing the generation of sulfur marks and improving the yield of the product.

Description of drawings

Fig. 1 is the schematic diagram of existing rubber preforming die structure;

Fig. 2 is the schematic diagram of the novel rubber preformed die structure described in the utility model;

Fig. 3 is a schematic view of the mouth structure of the new rubber preform according to another embodiment of the present invention.

Detailed ways

The best implementation of the present utility model is described in further detail below.

As shown in Figure 2, the new rubber preformed mouth structure includes a body 1 and a mouth 2, the center of the body 1 is a mouth 2 evenly dispersed, and the mouth 2 includes 5 openings with the same structure , the opening extends outward from the center of the body 1 .

The junction of two adjacent mouth shapes 2 is a sharp angle 3 structure.

As shown in Figure 2, the new rubber preformed mouth structure includes a body 1 and a mouth 2, the center of the body 1 is a mouth 2 evenly dispersed, and the mouth 2 includes 6 openings with the same structure , the opening extends outward from the center of the body 1 .

The junction of the two adjacent mouthpieces 2 is a sharp angle 3' structure.

When extruding rubber with ram-type preforming equipment. The extrusion pressure of the rubber die is the largest, and several pillars are added in the middle of the new die, which increases the resistance of the rubber extrusion in the middle, so that the thickness distribution of the middle and both sides of the cut rubber shape is more uniform; when the cut out When the weight of the rubber is the same, compared with the traditional cross (quadrilateral) mouth shape and the new mouth shape, the thickness of the rubber shape cut out by the new mouth shape is more suitable.

The above content is a further detailed description of the utility model in conjunction with specific preferred embodiments, which is convenient for those skilled in the art to understand and apply the utility model, and it cannot be determined that the specific implementation of the utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the utility model belongs, some simple deduction or replacement can be made without departing from the concept of the utility model without creative work. Therefore, simple improvements made to the utility model by those skilled in the art according to the disclosure of the utility model should be within the protection scope of the utility model.

Claims (3)

1. a new type rubber preform die structure, is characterized in that: comprise body, the shape of the mouth as one speaks, and described body central is the shape of the mouth as one speaks of dispersed setting, and the described shape of the mouth as one speaks comprises the identical opening of at least 5 structures, and described opening is stretched out by body central.

2. new type rubber preform die structure according to claim 1, is characterized in that: the junction of described adjacent two shape of the mouth as one speaks is horn structure.

3. new type rubber preform die structure according to claim 1, is characterized in that: the described shape of the mouth as one speaks comprises the identical opening of 6 structures.