A Method for Optimizing Mold Opening Path of Injection Molding Machine

Abstract

The invention discloses a method for optimizing a mold opening path of an injection molding machine. The method comprises the following steps: planning a mold opening path according to a mold parameter and a mold opening process parameter; performing a mold opening action according to the planned mold opening path to obtain mold opening result data; calculating a mold opening error, judging whether the mold opening error is within a set error range or not, if yes, ending optimization, and if not, re-planning the mold opening path through an iterative learning method; and optimizing the mold opening path for multiple times until the mold opening error is less than a set error allowable range, ending an optimization process, and saving a mold opening control parameter. According to the method disclosed by the invention, after a new mold is replaced for the injection molding machine, the mold opening control parameter can be automatically obtained rapidly without manual adjustment, and meanwhile, the method has the advantages that positioning is accurate in a mold opening process, the mold opening process is rapid and stable and the like, so that time of a single production batch can be effectively shortened, and production efficiency is increased.

Description

technical field [0001] The invention belongs to the related field of injection molding control, and more specifically relates to a method for optimizing a mold opening path of an injection molding machine. Background technique [0002] Plastic products are mainly produced by injection molding process, and injection molding machine is the main production equipment. A typical injection molding process includes the following six steps: mold closing, injection, pressure holding, cooling, mold opening and ejection. Mold opening means that after the plastic product is cooled to a certain extent in the mold cavity, it is processed according to a certain speed and Press to open the mold, and then proceed to the next step of robot pick-up, or in-mold labeling and other processes. [0003] At present, most hydraulic servo injection molding machines adopt the method of open-loop hierarchical control for mold opening control. According to the preset position, pressure, flow and other p...

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Problems solved by technology

[0007] In view of the above defects or improvement needs of the prior art, the present invention provides a method for optimizing the mold opening path of an injection molding machine. The problem of large positioning error, large machine vibration and slow positioning speed in the mold opening process of the machine mold opening mechanism

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