Polypropylene high-strength composite injection molding equipment
By combining the valve opening mechanism with the reciprocating motion of the piston and the staggered movement of the mixing layer, the problem of poor heat melting and low mixing effect of the plunger injection molding machine is solved, realizing efficient heating and mixing of polypropylene injection molded parts and improving the quality of finished products.
CN117140886BActive Publication Date: 2026-04-28GUANGDONG CHAOSU PLASTICS TECH LTD CO
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Patent Information
- Application Number
- CN202311206495.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-19
- Publication Date
- 2026-04-28
- Estimated Expiration
- 2043-09-19
AI Technical Summary
Technical Problem
Existing plunger-type injection molding machines suffer from poor hot melt effect, low mixing effect, and high gas content during polypropylene injection molding, resulting in poor finished product quality.
Method used
The design employs a hysteresis rod to open the valve, combined with the reciprocating motion of the piston and the staggered bouncing of the mixing layer. Through the cooperation of the diversion hole and the hot air chamber, it achieves rapid heating and efficient mixing of materials, reducing air intake.
Benefits of technology
It improves the heating efficiency and mixing effect of materials, reduces drooling at the nozzle and air intake, and improves the quality of finished products.
✦ Generated by Eureka AI based on patent content.
Abstract
The application relates to the technical field of plastic processing, and discloses a polypropylene high-strength composite material injection molding equipment for injection molding, which comprises a heating box, a hot melting cavity and a push cavity are arranged in the heating box, a nozzle is arranged at one end of the heating box close to the push cavity, a valve seat is arranged in the push cavity, a valve plate is arranged on the valve seat to block, a piston is arranged on one side of the valve seat, and a hysteresis rod is sleeved on the piston. The hysteresis rod pushes the valve plate to open the valve seat, the piston can push the material out of the nozzle, the valve has a counterforce on the hysteresis rod, spring I is compressed, when the piston is retracted, the hysteresis rod moves in the same direction, but the speed of the hysteresis rod is smaller than that of the piston due to the influence of spring I, the valve is still in the open state within a certain time, the material at the nozzle can move a distance to the position of the valve, saliva flow is avoided, and air intake is reduced.
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