Core-pulling device suitable for die-casting die

Abstract

The invention discloses a core-pulling device suitable for a die-casting die. The core-pulling device comprises a rectangular mounting shell, mounting blocks, an oil cylinder, a guide side strip, guide pipes, guide rods, first fixing blocks, threaded pipes, screw rods, second fixing blocks, guide strips, guide grooves, guide holes, pressing rods, guide rings, sliding blocks, rockers, first gears,second gears, worms, worm wheels, rotating shafts, inner grooves, pressing plates, spiral springs, wear-resistant pressing blocks, first magnet blocks and second magnet blocks. The core-pulling devicehas the beneficial effects that the device has the function of conveniently disassembling and replacing the sliding blocks; after long-term use, compensation of wear guiding is facilitated, and the compression amount of spiral springs is guaranteed, so that good contact between the wear-resistant pressing blocks and the guide strips is guaranteed, the guiding effect is guaranteed, and the situation that guiding stability is affected due to the fact that gaps are generated or the spiral springs are compressed too loosely is avoided.

Description

technical field [0001] The present application relates to a core-pulling device, in particular to a core-pulling device suitable for die-casting moulds. Background technique [0002] Die-casting mold is a tool for casting metal parts, a tool that completes the die-casting process on a special die-casting die forging machine; the basic process of die-casting is: the molten metal is first filled into the cavity of the mold by low-speed or high-speed casting, The mold has a movable cavity surface, which is pressurized and forged with the cooling process of the molten metal, which not only eliminates the shrinkage cavity and shrinkage defects of the blank, but also makes the internal structure of the blank reach the broken grains of the forged state. The comprehensive mechanical properties of the blank have been significantly improved; with the rapid development of the automobile industry, more and more die-casting parts are widely used, and some products cannot be directly rele...

AI Technical Summary

Problems solved by technology

[0003] The existing core-pulling device generally drives the slider through the oil cylinder, and realizes the core-pulling through the movement of the slider. The obvious disadvantage of this kind of device is that it lacks a guiding mechanism and the stability of the movement is not good; at the same time, it is not easy to disassemble and replace the slider. When changing the design, the slider may need to be replaced, which is inconvenient to replace and may affect the overall processing efficiency

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