Drying equipment for granular materials and injection molding system

Abstract

The invention discloses drying equipment for granular materials. The drying equipment is characterized by comprising a storage hopper (2), a first charging barrel (1), a feeding screw rod (4) and a driving part (5) for driving the feeding screw rod (4) to rotate around the axis of the feeding screw rod (4); the first charging barrel (1) is provided with an inner cavity (11) extending in the axial direction of the first charging barrel (1), the storage hopper (2) communicates with the inner cavity (11), the feeding screw rod (4) is arranged in the inner cavity (11), and materials entering the first charging barrel (1) can move towards a discharging port (13) of the first charging barrel (1) through rotation of the feeding screw rod (4). The drying equipment further comprises heating parts (6) arranged on the periphery of the first charging barrel (1) and used for heating the materials moving in the first charging barrel (1). The invention further discloses an injection molding system applying the drying equipment. Compared with the prior art, the drying equipment has the beneficial effects of uniform heating of plastic particles, no discoloration, short time consumption, power saving and low cost, and can be effectively matched with the operation of an injection molding machine.

Description

technical field [0001] The invention relates to the technical field of drying equipment, in particular to a drying equipment and an injection molding system for granular materials. Background technique [0002] Injection molding machine is currently the most widely used injection molding machine product. When the injection molding machine is working, the granular or powdery plastic is generally added to the barrel first, and the plastic is melted by the rotation of the screw in the barrel and the heating of the barrel, and then the plastic is driven forward by the rotation of the screw. The plastic is injected from the nozzle at a high pressure and speed, injected into the closed mold, and solidified into the required molded plastic product after being pressurized and cooled. [0003] Injection molding machines generally include a mold mechanism, a mold clamping mechanism and an injection mechanism. Injection molding machines can be divided into hydraulic cylinder injectio...

AI Technical Summary

Problems solved by technology

However, the structure of this drying method is complex, and the drying function of exhaust steam and the plasticizing function of plastic particles use coaxial screws and barrels, resulting in that the drying and plasticizing processes cannot be well exerted due to mutual constraints. For example, the progress of the two processes The inconsistency of the material speed and other factors leads to mutual restraint of the process speed, which will affect the effect and speed of the drying and plasticizing process, prolong the overall injection molding time, and seriously restrict the production efficiency

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