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Four-screw mixing extruder

A technology of extruder and screw, which is applied in the field of new style machines, can solve the problems of high energy consumption, low output, environmental pollution, etc., and achieve the effect of increasing plasticizing and dispersing capabilities

Inactive Publication Date: 2014-07-23
许汉辰 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The invention mainly solves the problems of separation of two processes of banburying and extrusion, high energy consumption, low output and serious environmental pollution in plastic processing, and provides a four-screw banburying extruder with compact structure, simple operation, energy saving and high efficiency

Method used

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specific Embodiment approach

[0014] see figure 1 with figure 2 , the four-screw banbury extruder of the present invention comprises a motor 1, a shaft coupling 2, a speed change gearbox 3, a group of closed cylinders 4, a machine head 5, a group of four screws 6 and a machine rack 8.

[0015] see Figure 4 with Figure 5 , The transmission gearbox 3 of the present invention includes an input shaft 10 , an intermediate shaft 20 and a first output shaft 30 , a second output shaft 40 , a third output shaft 50 and a fourth output shaft 60 .

[0016] The input shaft is supported in the casing (not shown) of the transmission gearbox 3 through two bearings 11, and a driving pinion 12 is fixedly installed on the input shaft 10.

[0017] The countershaft 20 is supported in the case of the transmission gearbox through two bearings 21, and a driven bull gear 22 and two identical countershaft first pinion gears 23 and second countershaft pinion gears 24 are fixedly installed on the countershaft 20 , the drivin...

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Abstract

The invention relates to a novel plastic processing machine, in particular relates to a four-screw mixing extruder which is characterized in that a mixing device and an extruding device as well as a mixing working procedure and an extruding working procedure which are needed in the plastic processing process are respectively integrated. The four-screw mixing extruder consists of four screws, wherein the axes of the four screws are parallel to one another, the center distances of the four screws are equal, and a square shape is formed by connecting lines of four central points of the four screws in a vertical cross section. The four screws are respectively in a block combination type; all screw elements are meshed with one another, and a closed central area which is a mixing area can be formed. The four screws can rotate along the same direction, the area of the central area is changed for four times when the four screws turn a circle, and a period is defined by 90 degrees. The material is kneaded and extruded powerfully for tens of thousands of times every minute in the central area and is fully plastified, and all the components are evenly dispersed. The productivity of the four-screw mixing extruder is twice that of a common twin-screw extruder, and the energy consumption of the four-screw mixing extruder is reduced by 50%.

Description

technical field [0001] The invention relates to the field of plastic processing, that is, the functions of the internal mixer and the extruder in the plastic processing are integrated to make it a brand-new machine. Background technique [0002] The invention mainly solves the problems of separation of two processes of banburying and extrusion, high energy consumption, low output and serious environmental pollution in plastic processing, and provides a four-screw banbury extruder with compact structure, simple operation, energy saving and high efficiency. Contents of the invention [0003] The machine main body of the present invention is made up of four screw rods. The four screws are parallel to each other, and the center lines of the screws are arranged in a square shape. Each screw is a building block, consisting of some double-headed (or single-headed, triple-headed) threaded blocks and engaging discs set on the spline shaft, and can be combined arbitrarily according...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/40B29C48/43
CPCB29C48/402B29C48/425B29C48/43
Inventor 许汉辰许钫许维中
Owner 许汉辰
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