Control method used after defective products are produced by injection molding machine

Abstract

The invention discloses a control method used after defective products are produced by an injection molding machine. The control method comprises the steps of, setting of a production process of products; setting of a production allowable process deviation value; monitoring of the production process; and alarm stop device. When an actual process deviation value is larger than an allowable process deviation value in automatic production of the injection molding machine, the machine can perform mold opening according to a preset mold opening stroke, stop pin ejection, stop air blowing, and stop outputting mold opening completion manipulator signals, and then output an alarm to remind that manual processing is needed, and therefore, a series of problems of confusion of defective products and non-defective products, a special mold production process and the like are solved, the product quality is improved, and user requirements are met.

Description

technical field [0001] The invention relates to the field of injection molding machine control, in particular to a control method for injection molding machines that produce defective products. Background technique [0002] In the control of injection molding machines, product quality monitoring and machine control are very critical, especially for the production of precision plastic products such as electronic products, medical products, and small auto parts products. [0003] At present, when the machines of many manufacturers are in automatic production, even if there is a problem with defective products, the current cycle will be completed, that is, the mold will be opened, the thimble, the output of the manipulator signal, and the manipulator will pick up the parts before it will stop. Under the influence of some external factors, the automatic operation of the machine is unstable, resulting in the mixing of defective products and good products. After the end users find...

AI Technical Summary

Problems solved by technology

[0003] At present, when the machines of many manufacturers are in automatic production, even if there is a problem with defective products, the current cycle will be completed, that is, the mold will be opened, the thimble, the output of the manipulator signal, and the manipulator will pick up the parts before it will stop. Under the influence of some external factors, the automatic operation of the machine is unstable, resulting in the mixing of defective products and good products. After the end users find that the quality of the products is not up to standard, they will return the products in batches. After that, they need to be manually screened one by one, which is a serious waste of manpower and material resources. For this reason, we propose a control method for the injection molding machine to produce defective products

Images