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Injection machine for thermosetting material, especially for vulcanization of rubber, and corresponding method of implementation

一种实施方法、注入机的技术，应用在热固性材料的注入机领域，能够解决流体流温度升高等问题

Active Publication Date: 2014-10-08
REP INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Use of this device results in an increase in the temperature of each fluid stream, implying problems similar to those encountered in the aforementioned US patent

Method used

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  • Injection machine for thermosetting material, especially for vulcanization of rubber, and corresponding method of implementation
  • Injection machine for thermosetting material, especially for vulcanization of rubber, and corresponding method of implementation
  • Injection machine for thermosetting material, especially for vulcanization of rubber, and corresponding method of implementation

Examples

Experimental program
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Embodiment Construction

[0026] figure 1 The rubber vulcanizer of the invention shown first comprises plasticizing and injection means of known type. It is firstly provided with a plasticizing device 10 with a screw 12 located in a channel 14, which is connected to a heating device not shown. The screw 12 is also associated with a hole 16 in a material entry channel 14 for conveying the moldable rubber downstream of the machine.

[0027] The machine is also provided with injection means 20 of conventional type, comprising a chamber 22 that can be filled with fluid rubber from the plasticizing channel 14 . This chamber 22 receives a piston 24 which ensures the injection of fluid rubber into a flow channel 30 , also of conventional type.

[0028] In the example shown, the injection device 20 is separate from the plasticizing device 10 . However, the invention also finds application in plasticizing and injecting devices, such as those previously described. As an alternative, "screw-piston" injection,...

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PUM

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Abstract

The machine has means for plasticizing and injecting said material, which means are adapted to inject the material in a fluid state into a flow channel (30), which flow channel (30) includes at least one outlet capable of communicating with the inner volume of the mould. The flow channel (30) is provided with at least one reversal device (50) adapted to reverse the temperature radial profile in the flow of said fluid material between upstream and downstream of the reversal device.

Description

technical field [0001] The present invention relates to an injection machine for thermosetting material, and a method for its implementation. [0002] The invention is particularly directed to the vulcanization of rubber. However, the invention also finds application in closely related technical fields, such as the injection or molding of silicone, phenol resin or polyurethane. Background technique [0003] Traditionally, rubber vulcanizers first include plasticizing and injecting devices for thermosetting materials. With regard to the construction of these devices, there are several variants in the prior art. [0004] For example, a first solution concerns a separate plasticizing unit comprising a conveying screw ensuring heating of the material. This plasticizing device is combined with different injection devices comprising, inter alia, a piston connected to a receiving chamber where the material becomes plasticized. [0005] As a variant, the plasticizing device can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/58
CPCB29C45/54B29K2075/00B29C45/581B29K2083/005B29K2021/00B29C45/20B29K2101/10B29C48/362B29C48/70B29C48/705
Inventor S·德明C·诺加
Owner REP INT