Tooth-shaped disk, tooth-shaped disk assembly, screw assembly and double-screw assembly

Abstract

The embodiment of the invention discloses a tooth-shaped disk. The tooth-shaped disk is arranged between two adjacent screws of an extruding machine. The tooth-shaped disk comprises a cylinder body. The outer wall of the cylinder body is provided with a spiral thread. The spiral thread circles around the surface of the outer wall of the cylinder body and extends to the other end of the cylinder body from one end of the cylinder body. The spiral thread is provided with grooves sunken from the top to the bottom of the spiral thread every preset distances. The two ends, extending to the cylinder body, of the spiral thread are each provided with one spiral end face. Each spiral end face and the end face, where the spiral end face is located, of the cylinder body are located in the same plane. By means of the tooth-shaped disk, seamless fitting between tooth-shaped disks or between the tooth-shaped disk and other elements is achieved, a material accumulation dead area formed between the end faces of the tooth-shaped disks or between the end face of the tooth-shaped disk and the end faces of the other elements is avoided, the self-clearing ability of materials is improved, and thus the product quality is improved.

Description

technical field [0001] The invention relates to an extruder, in particular to a toothed disk in the extruder, and a toothed disk assembly, a screw assembly and a twin-screw assembly which are assembled using the toothed disk. Background technique [0002] With the rapid development of the plastics industry, the range of color masterbatch products used as plastic colorants and modified admixtures is also continuously expanding. People's requirements for the quality of industrial products are getting higher and higher. [0003] In the prior art, when using extruders to produce color masterbatches, a few companies have designed and used twin-screw extruders with twin-screw components for production, but most companies are still using traditional single-screw extruders. screw extruder for production. [0004] In prior art twin-screw extruders or single-screw extruders, screw rods and toothed discs are included. Wherein, the toothed disc is a double-sided groove structure, and...

AI Technical Summary

Problems solved by technology

[0006] The end faces of the toothed discs are not on the same plane. When the toothed discs and the toothed discs or the toothed discs and other components are used together, it is not conducive to the dispersion and mixing of the materials, and it is easy to protrude on the end faces of the toothed discs. The step part forms a dead zone of material accumulation, which makes it difficult to clean up the material, thus affecting the quality of the product

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