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Vacuumizing fine rubber and plastic foaming device

A foaming device and vacuuming technology, used in the field of rubber and plastic foaming devices, can solve the problems of large cells, affecting the thermal conductivity, elasticity and safety performance of foamed products, and achieve fine cells and excellent resistance to water vapor penetration. , the effect of stable performance

Inactive Publication Date: 2014-03-26
WINCELL INSULATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditionally, extruders are used to complete the mixing, plasticizing, and molding production processes of rubber and plastic foaming. However, in the normal pressure production process, it is easy to form coarse cells in the screw extrusion process, which affects the thermal conductivity, elasticity and thermal conductivity of the final foamed product. Use security features

Method used

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  • Vacuumizing fine rubber and plastic foaming device

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Embodiment Construction

[0011] Below in conjunction with accompanying drawing, the present invention will be further described.

[0012] figure 1 As shown, a vacuumized rubber and plastic fine foaming device includes an extrusion chamber 1, an extrusion orifice 3, an extrusion screw 5, a plasticizing chamber 6, a vacuum pump 7 and a die 8, and the extrusion chamber 1 is coaxially arranged Extrusion screw 5, one end of extrusion chamber 1 is provided with feed port 2, the other end of extrusion chamber 1 is connected to plasticizing chamber 6 through extrusion orifice 3 with extrusion hole 4, extrusion chamber 1 passes through extrusion hole 4 is connected to the plasticizing chamber 6, and the extrusion screw 5 is connected to the extrusion orifice 3; the outer port of the plasticizing chamber 6 is connected to the die 8, and the plasticizing chamber 6 is provided with a true-hole pump 7 connected to the plasticizing chamber 6.

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Abstract

The invention relates to a vacuumizing fine rubber and plastic foaming device, which comprises a foaming cavity internally and coaxially equipped with an extrusion screw rod, wherein an extrusion orifice plate is arranged in the foaming cavity; an extrusion cavity and a plasticization cavity are respectively arranged on the two sides of the extrusion orifice plate of the foaming cavity; the extrusion screw rod is arranged in the extrusion cavity; extrusion holes communicating the extrusion cavity and the plasticization cavity are formed in the extrusion orifice plate; the external hole of the extrusion cavity is connected with charged material; a vacuum pump is communicated with the plasticization cavity; a die is connected with the external hole of the plasticization cavity. The extrusion cavity and the plasticization cavity communicated with each other via the extrusion holes are adopted, the fine foaming of rubber and plastic is achieved in sequence in a screw rod direct screwing manner and a vacuum current distribution manner, the structure is simple, the use is convenient, the foaming is uniform and fine, the finished product is stable in performance and safe in use.

Description

technical field [0001] The invention relates to a rubber and plastic foaming device, in particular to a vacuumized rubber and plastic fine foaming device. Background technique [0002] The working mechanism of the screw extruder is to rely on the pressure and shear force generated by the rotation of the screw, so that the material can be fully plasticized and uniformly mixed, and then formed through the die. Traditionally, extruders are used to complete the mixing, plasticizing, and molding production processes of rubber and plastic foaming. However, in the normal pressure production process, it is easy to form coarse cells in the screw extrusion process, which affects the thermal conductivity, elasticity and thermal conductivity of the final foamed product. Use safety features. Contents of the invention [0003] Aiming at the deficiencies of direct spiral extrusion molding of rubber and plastic foaming in the prior art, the present invention provides a vacuumized rubber ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C44/00
Inventor 秦伯军秦天德刘远斌张君吉娇
Owner WINCELL INSULATION CO LTD
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