Ejecting mechanism applied to fixed die

Abstract

The invention relates to an ejecting mechanism applied to a fixed die. The ejecting mechanism comprises a fixed die frame, a lower top plate and an upper top plate. A fixed die core is mounted in thelower end of the fixed die frame, an inwards-recessed cavity is formed in the middle of the upper end of the fixed die frame, limiting columns are vertically mounted in the positions of the four corners in the cavity, the limiting columns are sequentially slidingly provided with the upper top plate and the lower top plate from top to bottom, the upper top plate and the lower top plate are fixed through a screw, the upper ends of the limiting columns penetrate through the upper top plate and are sleeved with multiple spring pieces, an opening in the upper end of the cavity is sealed by a coverplate, and ejector rods and reset rods are mounted in the lower top plate. Through the reasonable die structural design, the ejecting structure is additionally arranged on the fixed die, and the problems that in the die opening process, due to the complex cavity structure, packaging force is too high, and die sticking and deformation are easily caused are greatly relieved. The stability of the spring pieces resistant to high temperature and high in strength is higher that that of springs, the effective load rates of the ordinary springs are reduced after being subjected to high temperature, and products are unstable and are sometimes good and sometimes bad.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to an ejection mechanism applied to fixed molds. Background technique [0002] Today's die-casting molds have higher and higher requirements for dimensions, resulting in product deformation and unstable dimensions, resulting in low product qualification rates and increased production costs. During the mold opening process, due to the complex structure of the cavity, the clamping force is too large, which may easily cause mold sticking and deformation. However, the current molds generally only have an ejection mechanism on the movable mold, which easily leads to sticking and deformation of the fixed mold. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an ejector mechanism applied to a fixed mold. Through a reasonable mold structure design, an ejector structure is added to the fixed mold, which greatly improves the mold op...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an ejector mechanism applied to a fixed mold. Through a reasonable mold structure design, an ejector structure is added to the fixed mold, which greatly improves the mold opening process caused by the complex structure of the cavity. If the tightening force is too large, it is easy to cause mold sticking and deformation problems

Images