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Intermittent screw thread type reaction injection mixing element

A technology of injection mixing and thread type, which is applied in the field of mixing components, can solve the problems of high equipment investment and operating costs, and easy breakage of components, and achieve the effects of low operating costs, improved service life, and simple structure

Inactive Publication Date: 2008-11-12
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

From the point of view of the use process, the component is easily broken, which causes problems such as high equipment investment and operating costs

Method used

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  • Intermittent screw thread type reaction injection mixing element
  • Intermittent screw thread type reaction injection mixing element

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Experimental program
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Effect test

Embodiment Construction

[0015] As shown in Figure 1, an intermittent thread type reaction injection mixing element is composed of an interrupted thread type working section 1 and a driving connection section 2, wherein: the interrupted thread type working section 1 is a rectangular threaded section made of metal materials , its structural parameters are length L1, diameter D, screw pitch Lt, screw edge width E, screw groove depth H, and a discontinuous groove with discontinuous width W is processed every two pitches, and discontinuous groove depth is also is the depth of the screw groove, according to different needs, according to the predetermined structural parameters, the intermittent screw type reaction injection mixing element is turned; the length of the driving connection section 2 is L2, and the drive shaft of the mixing element with the reaction injection molding equipment is produced on its length L2 Compatible connected structure.

[0016] Referring to a specific embodiment of the present ...

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Abstract

An injection mixing element of a discontinuous thread type reaction consists of a discontinuous thread type working section (1) and a drive connection section (2); wherein, the discontinuous thread type working section (1) is a rectangle thread section lathed and is manufactured by a metal material; the structure parameters of the discontinuous thread type working section (1) are that the length is L1, the diameter is D, the thread pitch is Lt, the width of the thread ridge is E and the depth of the thread slot is H; besides, a discontinuous slot with discontinuous width of W is processed by being spaced by every two thread pitches; the depth of the discontinuous slot is also the depth of the thread slot which is H; a connection structure matched with a drive shaft of the mixing element is manufactured on the drive connection section (2). The invention can build a larger injection force; the surface quality of a product is good; the structure is simple; the cost is low; besides, the invention is simple and easy to be used, maintained and repaired.

Description

technical field [0001] The invention relates to a mixing element, especially a mixing element used in a mixing system of a molding equipment for a reaction injection molding process. Background technique [0002] Reaction Injection (RIM) is a high-efficiency production method that directly injects two or more viscous liquid raw materials into the mold while mixing them, and rapidly polymerizes to form polymer material parts. It is a rapid manufacturing technology for polymer material parts. , is an advanced manufacturing technology at present, combined with rapid prototype manufacturing and mold rapid manufacturing technology, it can realize the rapid manufacturing process of "conceptual design-prototype manufacturing-mold manufacturing-part forming" in a short period of time, and can quickly Transform the design concept into a certain batch of actual parts in a timely manner. Compared with other molding methods, reaction injection equipment has a simple structure and low m...

Claims

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Application Information

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IPC IPC(8): B29C45/60
Inventor 王丽姬宜朋张沛
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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