Mold oil cylinder core-pulling sliding block retaining circuit used in injection process of injection molding machine

Abstract

The invention discloses a mold oil cylinder core-pulling sliding block retaining circuit used in the injection process of an injection molding machine. The mold oil cylinder core-pulling sliding block retaining circuit comprises a core-pulling input end, a core-pulling output end, an injection input end and an injection output end. The core-pulling input end is connected with the core-pulling output end, and the core-pulling input end transmits a signal to control action of a core-pulling valve. A diode D1, a diode D2, a relay KM1 and a mold mode locking pole stop signal circuit are further included. According to the mold oil cylinder core-pulling sliding block retaining circuit, an injection voltage signal is provided for the core-pulling valve at the injection ends, the core-pulling valve is opened, and oil pressure of an original machine can achieve a pressure maintaining function on a core-pulling oil cylinder; and the problems that in the injection process of the original injection molding machine, due to the counter acting force of injection pressure on a mold sliding block, the sliding block retreats slightly, and injection molding defects of trimming, burrs and the like are generated to products are solved.

Description

technical field [0001] The invention relates to the field of injection molding machines, in particular to an anti-retreat circuit for a core-pulling slider of a mold oil cylinder during the injection process of an injection molding machine. Background technique [0002] The popularity of plastic products has gradually replaced a large number of metal products. Plastic parts have many advantages such as simple production process, light weight, superior performance, and recyclability, and are increasingly valued and used in today's society. Whether it is in vehicles such as vehicles or civilian and military products, it is widely used to replace metals. Injection molding is one of the most important production methods of plastic products. [0003] With the continuous development of society and the continuous expansion of people's application fields, the shape and structure of plastics are becoming more and more complex, and the precision requirements of plastic parts are also...

AI Technical Summary

Problems solved by technology

It also leads to a decline in the quality of the product or even unqualified scrap

If it is not discovered in time, it will lead to quality accidents such as mass scrapping, which will bring greater economic losses to the enterprise.

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