Toggle rod type injection molding machine mold closing mechanism

Abstract

The invention discloses a toggle rod type injection molding machine mold assembly mechanism. On the basis of an existing toggle rod type injection molding machine mold assembly mechanism, the toggle rod type injection molding machine mold assembly mechanism comprises lengthened moving mold sliding plate feet on the front side and the rear side of a movable mold plate, a fixed mold plate mold positioning ring and a large steel sleeve with a concentric groove and spiral groove structure, wherein the lengthened moving mold sliding plate feet on the front side and the rear side of the movable moldplate have a better supporting effect on the mold, compared with shorter moving mold sliding plate feet on unilateral side of an existing injection molding machine, the lengthened moving mold slidingplate feet on the two sides can prevent the mold from inclining, and the mold plate operates more stably, the fixed mold plate mold positioning ring is used for positioning a gate bush in a mold runner system, it is guaranteed that a mold positioning hole cannot be crashed to be damaged in a mold assembling process. the large steel sleeve with a concentric groove and spiral groove structure formis compared with a large steel sleeve with a single concentric groove structure form, the lubricating contact area is increased, and the concentric groove and the spiral groove structural form can avoid the conditions that oil are easily cut off in a connecting rod pin and the large steel sleeve and the mold cannot be opened due to the single structural form and poor lubricating effect of the large steel sleeve of the existing injection molding machine.

Description

technical field [0001] The invention relates to the field of plastic machinery, in particular to a mold clamping mechanism of a toggle-type injection molding machine. Background technique [0002] The mold clamping mechanism of the toggle injection molding machine is a key component of the entire injection molding machine. The design form of the mold clamping mechanism of the existing toggle injection molding machine is relatively simple, and the design structure is mainly in the form of 10-20 years ago. The sliding foot of the single-side moving template of the traditional toggle-type injection molding machine mold clamping mechanism is relatively short, which is prone to mold tilting and unstable operation; the fixed template lacks a mold positioning ring, and the mold positioning hole may be damaged during the mold loading process; The sleeve is only a single concentric groove structure, the lubricating contact surface is small, and the lubricating effect is not good. ...

AI Technical Summary

Problems solved by technology

The sliding feet of the single-side movable template of the traditional toggle-type injection molding machine mold clamping mechanism are relatively short, which is prone to mold tilting and unstable operation; the fixed template lacks a mold positioning ring, and the mold positioning hole may be damaged during the mold loading process; The sleeve is only a single concentric groove structure, the lubrication contact surface is small, and the lubrication effect is not good

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