Tunnel reversing core-pulling structure in sliding block

Abstract

The invention discloses a tunnel reversing core-pulling structure in a sliding block. The tunnel reversing core-pulling structure comprises a master sliding block, a side sliding block and a slave sliding block; a sliding block groove for installing the side sliding block is formed in the side, close to a forming face, of the master sliding block, and the side sliding block is installed on the sliding block groove by a first sliding strip and a second sliding strip; a sliding block cavity is formed in the master sliding block, and the slave sliding block is arranged in the sliding block cavity; the side sliding block is provided with a first guide hole, and a first guide column is inserted into the first guide hole; the slave sliding block is provided with a second guide hole, and a secondguide column is inserted into the second guide hole; and the bottom part of the master sliding block is further provided with main sliding strips and a supporting block, a connecting block is arranged at ends of the two main sliding strips, and the connecting block is connected with an oil cylinder. According to the tunnel reversing core-pulling structure, the side sliding block and the slave sliding block of a mold are attached to the master sliding block, and a movable connecting structure is employed, so that disassembly and assembly are convenient, and especially, accessories of a complexforming region of the mold are prone to damage in the long-term production process, and new accessories are easy to manufacture for replacement, and accordingly, the service life of the integral moldis prolonged, and the product production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of mold design and manufacture, in particular to a tunnel reversing core-pulling structure inside a slider. Background technique [0002] Modern automobile manufacturing or 3C products use engineering plastics in large quantities. In order to realize the multi-function or multi-purpose of the product, the product structure design is complicated, including many locks or curved surface inset structures, as well as bosses on the edge of the product, etc., and the product’s The production method usually adopts injection molding. Due to its short process flow for injection molding, it is easy to realize mechanical automation, and it provides multi-process composite molding, such as the rapid development of multi-color molding technology in recent years. In order to produce products that meet the design requirements, the mold structure is relatively complex, and there are many mold action mechanisms. [0003] At...

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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to overcome the defects of the prior art, and provide a tunnel reversing core-pulling structure in the slider, which is used to produce products with superimposed structures in injection molding products, so as to solve the problem of not increasing the size of the mold space. At the same time avoid the problem of multi-mechanism action of the mold, the mold is easy to disassemble and low maintenance cost

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