Double-ejection mechanism of mold

Abstract

The invention discloses a double-ejection mechanism of a mold. The double-ejection mechanism of the mold comprises a lower fixing plate, mold legs and a movable mold plate. A first ejector plate is arranged on the lower fixing plate. A second ejector plate is arranged on the first ejector plate. An ejection rod which penetrates through the first ejector plate is arranged on the lower fixing plate in a penetrating mode. The ejection rod makes contact with the second ejector plate. A first ejector is arranged on the first ejector plate. A second ejector is arranged on the second ejector plate. A first limiting column is arranged on the first ejector plate. A second limiting column is arranged on the second ejector plate. A resin opening and closing device is arranged at the upper end of the first ejector plate. An insertion hole is formed in the second ejector plate. The resin opening and closing device is inserted into the insertion hole. A return pin which penetrates through the movable mold plate upwards is arranged on the second ejector plate. According to the double-ejection mechanism, through double ejection, a product is ejected out and separated from a mold core and the ejectors of the mold, and accordingly the product can fall automatically or be taken out easily; and the product quality is improved, the efficiency is improved, and the cost is reduced. In addition, the two ejector plates can be pressed back and restored through the return pin.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to a secondary ejection mechanism of a mold. Background technique [0002] Whether the ejection position of the plastic mold product and the selection of the ejection mechanism are appropriate will directly affect the appearance of the product, the molding cycle and production efficiency. The selection of the ejector mechanism depends on the structure of the plastic parts of the customer's product. In general, the ejection mechanism is a traditional one-time ejection mechanism. But for some products (such as products with many deep ribs), the above-mentioned traditional ejection mechanism cannot meet the requirements of the product and the efficiency of production. When the traditional ejection mechanism faces products with deep ribs and high boss columns, many glue and ribs of the product are still sandwiched between the ejector pins during ejection, making it difficult for the pro...

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Problems solved by technology

[0003] In order to solve the above-mentioned technical problems, the purpose of the present invention is to provide a secondary ejection mechanism of the mold, which can well solve the difficulty in taking out the product due to the ejection problem in the molding process of the plastic product, and the product is easily scratched when taking it out. The problem of long molding cycle

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