Quick Adjustment Method of Clamping Force of Toggle Injection Molding Machine

Abstract

The invention relates to method for quickly adjusting the mould locking force of a bent-elbow type injection molding machine, which comprises a primary trial-correction stage and a daily-use stage of the mould locking force, wherein the position of a thrust seat of the mould locking force of the injection molding machine, which meets actual requirements, is obtained in the primary trial-correction stage of the mould locking force, and then in the daily-use stage, the position of the thrust seat of the injection molding machine is set as the position of the thrust seat, and normal mould-closing regulation is carried out. The invention has the advantages that the adjusting time of the mould locking force is greatly saved, and the preparation time required before the adjustment for the mould locking force is also greatly reduced. Through the accurate control for the position of the thrust seat, the dead zone of the adjustment for the mould locking force can be avoided, and the consequent adjustment failure is avoided.

Description

technical field [0001] The invention relates to a method for adjusting the clamping force of an injection molding machine. Background technique [0002] For the clamping mechanism of the toggle injection molding machine, when a new mold is installed, the mold clamping mechanism needs to be adjusted according to the product requirements of the mold to give the mold a suitable clamping force. The generation of this clamping force is implemented by adjusting the position of the tail plate of the mold clamping mechanism relative to the fixed platen. Specifically, the tail plate is closer to the fixed platen, corresponding to the same mold, and the clamping force after the mold clamping is locked is Large; the tail plate is far away from the fixed template, corresponding to the same mold, and the clamping force will be small after the mold is clamped and locked. [0003] At present, the clamping force adjustment of the toggle mold clamping mechan...

AI Technical Summary

Problems solved by technology

First of all, due to the need for repeated adjustment and trial clamping, the process of adjusting the clamping force after a new mold is much longer than that of other mold clamping types of injection molding machines; secondly, because the trial clamping process requires mold opening and clamping, it requires Newly installed molds have cumbersome preparations before adjusting the clamping force. Necessary oil pipes need to be connected, movable and fixed mold connecting blocks need to be removed, molds need to be completely pressed on the formwork, and molds with neutrons need to be shielded according to the actual situation of the mold. Or activate the relevant neutrons to prevent the mold from being damaged when the mold is opened and closed; thirdly, due to the limitation of the clamping force adjustment mechanism, this method of adjusting the clamping force after the test is fine-tuned, resulting in a step-by-step adjustment of the clamping force. Due to the resolution of the clamping adjustment mechanism, the repeatability of the clamping force adjustment control is not good, and there is a dead zone for clamping force adjustment and failure of automatic clamping force adjustment, etc.