Pressure balancing mechanism

Abstract

The invention discloses a pressure balancing mechanism, and relates to the technical field of extrusion equipment. The pressure balancing mechanism of the technical scheme is characterized by comprising two stable sliding sleeves sleeving the outer portion of a screw rod of an extruder, the stable sliding sleeves can axially move relative to the screw rod and are circumferentially linked, a size-adjustable balance cavity is formed between the two stable sliding sleeves, and a stirring mechanism is arranged in the balance cavity; and the pressure balancing mechanism further comprises a supplementing and adjusting device, the material extrusion end of the supplementing and adjusting device communicates with the balance cavity, and the supplementing and adjusting device is used for supplyingraw materials to the balance cavity. According to the pressure balancing mechanism, the pressure of the materials can be buffered and rebalanced in a specific area in the extruder, so that the stability and control of the pressure of the materials in the extruder can be achieved.

Description

technical field [0001] This invention relates to extrusion equipment, and more particularly to a pressure equalization mechanism. Background technique [0002] In the process of modernization of the manufacturing industry, due to the expansion and introduction of polymer plastic materials, various high-strength, lightweight and special-shaped structural designs and products can be realized, and polymer plastic materials have become indispensable in people's production and life. In the production process of polymer plastic materials, polymer resin materials are usually processed into master batches, which are then heated and extruded by an extruder, and then processed and shaped by appropriate molds to obtain the required structural products. . [0003] In the production process of the extruder, the raw material is heated in a limited and closed environment, and then extruded and transported by the screw, the material is extruded into the mold to form a stable raw material l...

AI Technical Summary

Problems solved by technology

[0003] In the production process of the extruder, the raw material is heated in a limited and closed environment, and then extruded and transported by the screw, the material is extruded into the mold to form a stable raw material loose channel, while in the process of the extruder Among them, the pressure of the internal screw on the material also affects the normal production. In the normal use process, the internal pressure is often unstable and the production is unstable or defective.

[0004] In the production process of polymer plastics, a lot of waste is often generated, especially in the process of adjusting and styling large samples, which will generate a lot of waste of raw materials. Usually, most production units will recycle the waste. Utilization, using it for specific products or styles, because waste materials are mixed with more impurities and substances of different components, further pollution will also occur in the process of recycling waste materials, and particles may also have harmful substances. A large number of voids and gaps are mixed with more air. During processing, different types of materials will produce different expansion pressures under the same heat, resulting in unstable pressure inside the extruder, affecting extrusion. The normal work of the extruder, and the current material extrusion equipment cannot adapt to such a production situation, which also leads to the fact that plastic polymer waste can hardly be recycled

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