A kind of injection molding hot runner system

Abstract

The invention relates to a hot runner system for injection molding with uniform material injection. During the use of this solution, when the feeding speed is too slow, on the one hand, the existence of an adaptive regulator will play a role of extrusion buffering for the raw materials, and the raw materials are in After contact with the adaptive regulator, the motion state will change greatly in a short period of time, resulting in the formation of a small range of turbulent flow in the raw material in the fluid state, so that natural deposits cannot be formed inside the raw material. On the other hand, under the action of the raw material fluid , it will push the force block to move in the direction of the inner wall of the conveying pipe, agitate the raw materials in the casing, increase the resistance of the raw materials to flow in the conveying pipe, make it difficult to form natural deposition inside, the raw materials are easy to maintain a homogeneous state, and at the same time can The raw material can be kept warm and heated by the electric heating rod installed inside the movable rod, so that the raw material can maintain a relatively stable and homogeneous shape for a long time before being injected into the mold for molding.

Description

technical field [0001] The invention relates to a hot runner system for injection molding with uniform material injection, in particular to a hot runner system for injection molding with uniform material injection. Background technique [0002] The hot runner is to ensure that the plastic of the runner and gate is kept in a molten state by heating. The hot runner system generally consists of a hot nozzle, a manifold, a temperature control box and accessories. The hot nozzle generally includes two types: open Hot nozzle and needle valve hot nozzle, because the hot nozzle form directly determines the selection of the hot runner system and the manufacture of the mold, so the hot runner system is often divided into an open hot runner system and a needle valve hot runner system accordingly. [0003] Compared with traditional injection molding, hot runner injection molds have the advantages of short molding cycle, saving plastic raw materials, improving product quality, facilitati...

AI Technical Summary

Problems solved by technology

[0003] Compared with traditional injection molding, hot runner injection molds have the advantages of short molding cycle, saving plastic raw materials, improving product quality, facilitating production automation and expanding the scope of applications. Although compared with traditional injection molding processes, injection molding for hot runner systems The device is more complicated, the cost is higher, and the maintenance is difficult. However, in the production of large products and complex structure products, the hot runner Zusu mold has the advantages that the traditional cold runner mold cannot match

[0004] The injection molding raw material can maintain a relatively stable temperature for a long time in the hot runner system, so that the raw material can maintain a relatively stable and homogeneous shape for a long time before being injected into the mold, which can effectively increase the molding effect of the mold. When the injection process of the hot runner system cannot be uniform, the above characteristics will not be guaranteed. Uneven injection can easily lead to unstable temperature of each part of the raw material, which will lead to the inability of the raw material to be in a homogeneous state, which will easily affect the molding effect of the injection molding product.

Images