Mold clamping mechanism and mold clamping rear seat plate of injection molding machine

Abstract

The invention discloses a mold locking mechanism and a mold locking rear seat plate of an injection molding machine, comprising a mold locking plate and a mold locking tail plate, a mold locking moving plate is arranged between the mold locking plate and the mold locking tail plate; the lock Tie rods are fixedly installed at the four corners of the mold locking plate, the other end of the tie rod is fixedly installed on the mold locking tail plate, the mold locking moving plate is slidably installed on the tie rod, and the side of the mold locking moving plate close to the locking mold tail plate rotates Two sets of long hinges are installed, and the two sets of long hinges are symmetrically distributed up and down on the clamping movable plate. The mold clamping tail plate is fixedly installed in the center of the side away from the clamping movable plate, and the output of the clamping cylinder is fixed. The end is fixedly connected with the mold clamping moving plate. Through the new structural layout, the invention can reduce the stress concentration problem caused by the deformation of the tail plate during the mold clamping process, reduce the fatigue cracking probability of the tail plate after many years of use, reduce the structural deformation of the mold clamping tail plate, and increase the The rigidity of the clamping mechanism can optimize the weight of the parts and reduce the cost at the same time.

Description

technical field [0001] The invention belongs to the technical field of mold clamping mechanisms of injection molding machines, and in particular relates to a mold clamping mechanism of injection molding machines and a mold clamping rear seat plate. Background technique [0002] Generally, injection molding machines on the market are the main molding equipment for making thermoplastic materials or thermosetting materials into various shapes of plastic products with plastic molding molds. Therefore, the role of molds in injection molding machines is relatively important. According to different shapes of plastic products Manufacture the corresponding mold for production, with high efficiency and good quality; generally, the mold of the injection molding machine includes a movable template and a fixed template, and the production of the product is realized through the cooperation of the movable template and the fixed template, because the injection molding machine is in the injec...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing injection molding machines are clamped with tie rods. High-pressure oil is used to push the clamping piston to lock the pull rod of the injection molding machine. The inner ring gear in the clamping piston meshes with the locking ring gear on the pull rod to complete the mold clamping. process, but the stress concentration of the existing clamping mechanism during the clamping process causes the clamping plate to crack and deform after a period of use, making it impossible to continue to use, and the clamping plate has the disadvantages of high weight and insufficient rigidity

Images