Several feeding mode vertical injection molding machine introduced
Release date：2016-08-02 00:00
Feeding methods standard vertical injection molding machine, there are three: before feeding, after feeding and fixed feeding. Generally based on the nozzle and material conditions to select the appropriate feeding methods.1. Front feed: Each injection is completed, after reaching the pre-molded plastics claim injection seat back, go forward until the time of the next work cycle, the nozzle in contact with the mold, injection. This approach is not easy for the nozzle temperature control, high back pressure, prevent backflow occasions.2. After the addition was: injection injection is completed on the back seat, and then the pre-plastic, to be the work of the next cycle begins, injection seat go forward injection. This approach is not easy for the nozzle temperature control and processing of clean plastic.3. Fixed feed: the entire injection molding process, the mold had been in contact with the nozzle. This method is suitable for the nozzle temperature is easy to control, and a wide range of plastic molding temperature conditions.