Spraying assembly structure for slide block of die-casting mold

Abstract

The invention discloses a spraying assembly structure for a slide block of a die-casting mold. The structure comprises a fixed die, a moving die and a slide block core, wherein the fixed die and the moving die are arranged up and down, the slide block core is matched with the fixed die and the moving for die-casting, a slide block guide rail extending out of one side of the moving die is fixedly installed on the moving die and provided with a slide block joint for driving the slide block core to slide horizontally back and forth, at least one group of inner spraying pipes which is connected with a die-casting spraying machine and used for delivering die-casting coating sprayed on the outer surface of the slide block core is produced inside the moving die, each group of spraying pipe comprises a main spraying pipe and a plurality of branch spraying pipes connected with the main spraying pipe, and spraying holes of each branch spraying pipe are arranged on the upper surface of the moving die and distributed under the slide block core in mold unloading state. According to the structure, final size change of die-castings can be controlled reasonably, therefore die-casting defects are reduced, the service life of the slide block is prolonged, the production acceptability of the die-castings is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of die-casting molds, in particular to a spray-coating assembly structure of a slide block of a die-casting mold. Background technique [0002] Die casting mold is a big category in mold. In recent years, with the rapid development of my country's automobile and motorcycle industries, the die-casting industry has ushered in a new period of development. But at the same time, higher requirements are put forward for the comprehensive mechanical properties, life and mold structure of die-casting molds. [0003] Die casting is a precise production process, however, there are many factors that can affect the final dimensional variation of die castings. Dimensional changes can be divided into linear changes (mainly caused by shrinkage), movement dislocation between molds, parting line, casting and mold warpage, die-casting parameters, core-pulling and drafting angles, etc. But one thing...

AI Technical Summary

Problems solved by technology

However, in the general die-casting mold design, due to the structure of the bottom of the slider, it is difficult to spray the spray liquid, so it is easy to cause the surface of the slider to overheat and have poor lubrication performance, resulting in defects such as sticking and pouring. This is not only The service life of the slider is greatly reduced, and it will affect the final dimensional change of the die casting, and even cause the die casting to crack, which will affect the product qualification rate and increase the cost of mold maintenance

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