Parameter control method for bend elbow type membrane assembling mechanism of injection molding machine

Abstract

The invention provides a parameter control method for a bend elbow type membrane assembling mechanism of an injection molding machine. The parameter control method comprises the steps of: changing an included angle between a rear connecting rod and a straightening status into alpha, setting an included angle between a small connecting rod and the horizontal direction as phi when a mold is locked to the end, and setting a initial speed ratio of lifted velocity curve of the mechanism to a template to oil speed, thus controlling the bend elbow type membrane assembling mechanism of the injection molding machine. According to the change of control parameters, the stable high speed of an acceleration region, the low speed low pressure of a mold protecting region, the full speed ahead of a mold locking region can be realized, the whole mold disassembling / assembling process can be guaranteed to be smooth, and the mold disassembling / assembling speed can be increased when the whole injection molding machine circularly runs, so that the injection molding machine can meet the high-efficiency production requirement of a product, and the level of the whole machine can be improved.

Description

technical field [0001] The invention relates to a parameter control method of a toggle film-combining mechanism of an injection molding machine. Background technique [0002] In the current types of injection molding machines, although new mold clamping mechanisms such as full hydraulic type and electro-hydraulic composite type are emerging in an endless stream, the traditional toggle mold clamping mechanism that has been developed for decades still has strong vitality, especially in all-electric, high-speed Type, energy-saving and other injection molding machines have an irreplaceable position. Among them, the most common five-point double-toggle oblique row inward-rolling mold clamping mechanism still occupies a dominant position in the market because of its moderate cost and stable performance. [0003] In the five-point elbow mold clamping mechanism, the operation process of the mechanism is as follows: mold opening -> mold clamping -> low pressure mold protection...

AI Technical Summary

Problems solved by technology

[0004] The current mainstream mold clamping mechanism parameter control method is relatively simple and stable. When the mold is clamped to the end, the mechanism does not realize self-locking, and high pressure must be applied to avoid springing; at the same time, if the oil speed during the mold opening and closing process is increased, the entire mold The mold clamping mechanism vibrates very violently. In order to ensure the stable operation of the mechanism, the speed can only be reduced, resulting in a longer dry cycle of mold opening and closing; moreover, due to unreasonable parameter settings, effective self-locking cannot be realized, and the invalid stroke is too long, resulting in a long dry cycle , this situation is becoming more and more difficult to meet the needs of high-efficiency production today, and has become the bottleneck of the development of the toggle mold clamping mechanism

Images