Conic four-piece reciprocating pin scewrod extruder

A technology of screw extruder and conical screw, which is applied in the field of extrusion molding equipment manufacturing, can solve the problems of small compression ratio and volume ratio, decreased fluidity, and reduced delivery volume, so as to achieve stable flow state, high frictional heat, The effect of energy saving

Inactive Publication Date: 2005-07-27
新中法高分子材料股份有限公司 +1
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the screw with this structure reduces the leakage flow, because the outer diameter of the outer flight of the screw is cylindrical, the diameter of the screw and the barrel are the same, the compression ratio and volume ratio are relatively small, and the material is prone to flow resistance during extrusion. Resulting in decreased fluidity and reduced delivery volume

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Conic four-piece reciprocating pin scewrod extruder
  • Conic four-piece reciprocating pin scewrod extruder
  • Conic four-piece reciprocating pin scewrod extruder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Such as Figure 1-5 , an extrusion system of a conical four-screw reciprocating screw extruder, including a screw 1, a barrel 2 and a pin 3, the screw 1 is installed in the barrel 2, and consists of a front extrusion section, a middle mixing section and The rear feeding section is composed of the helix protruding from the surface of the screw 1 and having a certain thickness. That section of spiral flight that has interval is spiral sheet. The pin 3 is installed on the inner surface of the barrel 2 opposite to the flight on the screw; the flight 4 is periodically divided into four spiral sheets 5 arranged in a staggered manner along the circumferential helix angle, and the middle of every two flight sheets 5 The gap is used as the pin 3 channel, and the screw pieces 5 are arranged in a staggered front and back, distributed like a "maze", which fundamentally improves the return of the penetrating gap of the "one-shaped" structure where the three screw pieces are interru...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A reciprocating pin-screw extruder with conic screw bolt whose spiral threads in the extruding out and mixing segments are periodically divided into 4 spiral plates alternatively staggered is composed of extruding system and drive system. The gap between every two spiral plate is used as the channel of pin. Its drive system has a drive box consisting of input shaft, gear set, inclined wheel, connecting rod and swinging axle. Its advantages are stable flow state of material, high effect and low energy consumption.

Description

technical field [0001] The invention relates to the field of extrusion molding equipment manufacturing, in particular to an extrusion system of a reciprocating pin screw extruder. Background technique [0002] After years of development and improvement, the reciprocating pin screw extruder has the advantages of low pressure, low shear, low temperature rise and high mixing quality when processing materials that require high mixing quality and are sensitive to shear and heating , and thus have been widely used. The structure of this extruder is described in detail in the article "Design Principles of Reciprocating Pin-Screw Extruder" published in Volume 16, No. 1, No. 1, pp. 70-73 of "China Plastics" in 2002. The reciprocating pin screw extruder is mainly composed of motor, transmission system, extrusion system, feeding system and auxiliary system, the most critical part of which is the extrusion system. The extrusion system of the reciprocating pin-screw extruder is mainly ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/08B29C47/60B29C47/66B29C48/45
CPCB29C47/667B29C48/687
Inventor 曹建新
Owner 新中法高分子材料股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap