Elbow automatic demolding die

Abstract

The invention discloses an elbow automatic demolding die. The elbow automatic demolding die comprises a fixed die plate, a movable die plate and a bottom plate. A cavity insert and a core insert are arranged between the fixed die plate and the movable die plate. A demolding mechanism is arranged in the die and comprises a slider core pulling mechanism, a swing arm slider core pulling mechanism andan ejector rod elbow core pulling mechanism. A swing arm slider mechanism comprises an inclined bottom plate fixed to the movable die plate, a swing arm is rotatably mounted on the inclined bottom plate through a fixing pin, a fixed block is fixedly mounted at the other end of the swing arm, a first elbow core is clamped in the fixed block, the fixing position of the fixed pin is the circular arccenter of the first elbow core, and a locking component for locking the fixed block is fixed to the fixed die plate. The demolding die has the advantages that a three-dimensional elbow can be subjected to core pulling and demolding through the swing arm slider mechanism, the elbow is divided into multiple parts for core pulling, and the machining and manufacturing difficulty of the die is reduced; and the slider core pulling mechanism is arranged to assist injection molding parts in molding, and the structure of the die is further simplified.

Description

technical field [0001] The invention relates to the field of injection molds, in particular to an automatic stripping mold for bent pipes. Background technique [0002] The molding of plastic parts with elbows is an important problem in the injection molding of plastic parts. When demolding plastic parts, it is generally necessary to set up a special elbow core-pulling mechanism to implement demoulding. In the elbow, the composition of the center line is generally a single In this case, the layout of the pipe bending mechanism on the mold structure is relatively convenient, and the required mold structure size is small, but if the center of the pipe bend is composed of two or more sections, and each section When arranged in multiple planes with a certain angle, at this time, the elbow core of the elbow core-pulling mechanism is a three-dimensional three-dimensional core, and the design of the elbow core-pulling mechanism is more difficult, which affects the overall structure...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide an automatic demoulding mold for bent pipes, which can effectively solve the problem of bending through the cooperation of the two ejection mechanisms, the slider core-pulling mechanism, the swing arm slider core-pulling mechanism and the ejector rod elbow core-pulling mechanism. When the center of the pipe is two or more sections, it is difficult to automatically demould the bent pipe

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