Micro-foam injection molding machine and molding process thereof

Abstract

The invention relates to a micro-foam injection molding machine and molding process thereof, which belongs to the field of polymer material processing. The micro-foam injection molding machine mainly comprises an injection molding system, a clamping system and a micro-foam system, and the clamping system is the same as the clamping system of the conventional injection molding machine; two ports on the machine barrel front end of the injection molding system are respectively connected with the micro-foam system, a controllable on-off nozzle is arranged at the foremost end of the injection molding system, and the front end of a threaded rod is provided with a material storage area; and the micro-foam system comprises a gear pump, hybrid components, a gas injection device and a heating device. By introducing the micro-foam system, the injection molding system front end of the conventional injection molding machine is improved, with the introduction of the pressure boost gear pump into the micro-foam system, the pressure boost gear pump can circularly and ceaselessly drive the molding of the molten mass / gas homogeneous system in the material storage area and the core formation of the cell, the efficiency is high, and the molded cell is small and uniform; moreover, the device configuration is simple, and the device is easy to operate and control; and the invention has the advantages of low molded product weight, stable dimension, short molding cycle and energy conservation.

Description

technical field [0001] The invention relates to the field of polymer material processing, in particular to an injection molding machine capable of realizing microfoaming injection molding processing. Background technique [0002] Micro-foaming injection molding technology is a promising high-end energy-saving injection molding technology, because for molding the same type of products, the mold clamping force required for molding can be greatly reduced, that is, a lower mold clamping force can be used to mold larger Products, so that the cost of the mold is lower, and the energy consumption of molding is reduced. Compared with conventional molded products, the micro-foam injection molding cycle can be reduced by 50%, and the average cost of micro-foam molded products can be reduced by 16% to 20%. As an innovative precision injection molding technology, the micro-foaming injection molding process breaks through many limitations of traditional injection molding, which can sign...

AI Technical Summary

Problems solved by technology

For this reason, a variety of different mechanical devices have been developed at present, and they are relatively complicated, such as foaming fluid injection devices, foaming fluid injection additional auxiliary injection units, foaming fluid injection devices using special nozzles, etc.

Some of these devices require special machines, such as the MuCell micro-foaming molding process. Due to the high requirements on equipment and the control system and hydraulic system involved, reassembling and debugging existing equipment will require high costs.

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