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Injection moulding process and apparatus for plastic diaphragm of press filter

A technology of injection molding and filter press, which is applied in the direction of filtration and separation, separation methods, chemical instruments and methods, etc., can solve the problems of high product finish, long production cycle, and low efficiency, and reduce production costs and equipment investment , the effect of improving production efficiency

Inactive Publication Date: 2003-08-20
朱兴源
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages of this process: First, using this process to produce diaphragms has a long production cycle, low efficiency, and high cost; second, the product finish is far inferior to that of injection-molded products.

Method used

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  • Injection moulding process and apparatus for plastic diaphragm of press filter
  • Injection moulding process and apparatus for plastic diaphragm of press filter
  • Injection moulding process and apparatus for plastic diaphragm of press filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: with reference to attached figure 1 . Plastic diaphragm injection molding device for filter press, plastic diaphragm is injection molded by hot runner forming mold, and the hot runner mold is composed of mold and hot runner 1 located in the mould. The making of mold 3 is prior art, and the structure of hot runner can be various; Heat source can be electric heating (as heating wire heating), also can be fluid heating (as steam, water, oil etc. heating) etc.; Heating The way of heating can be external heating, internal heating, or self-heating; but no matter what kind of heating structure, what kind of heating source, what kind of heating method, the temperature can be set at any time according to the needs, and the temperature can be automatically controlled . The setting, detection and automatic control of the temperature are all existing technologies, and will not be described here. The hot runner forming mold is composed of a mold and a hot runner 1, ...

Embodiment 2

[0015] Embodiment 2: On the basis of Embodiment 1, the hot runner 3 is made of conductive heating material (the hot runner material itself has the function of self-heating after electrification, such as heating ceramics, etc.) and the temperature is adjustable.

Embodiment 3

[0016] Example 3: Injection molding process of filter press plastic diaphragm, after the plastic raw material is heated and plasticized by the injection part of the injection molding machine, it is injected into the hot runner in the hot runner forming mold, and then enters the cavity of the plastic diaphragm mold through the heating nozzle for molding and cooling After setting the mold, the mold can be taken out.

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Abstract

The present invention relates to plastic diaphragm forming process and equipment. During the process, plastic material is first heated and plasticized in injection molding machine and then injected into the hot flow channel of the plastic diaphragm forming mold and sprayed via the heating nozzle into mold cavity, and the plastic diaphragm is finally taken out after cooling, setting and mold opening. The structure of hot injection flow channel ensures the plasticized material to fill the different parts of the mold cavity and this makes it possible to make thin diaphragm with very large area. The combined design of hot flow channel forming mold and the injection part makes the present invention is superior to available technology, especially being suitable for producing thin-wall plastic diaphragm.

Description

Technical field: [0001] The invention relates to a method for forming a plastic diaphragm and equipment for realizing the method, and belongs to the field of filter press diaphragm and filter press diaphragm manufacturing equipment. Background technique: [0002] In the prior art, one of the techniques for processing and manufacturing the plastic diaphragm is to put the plastic raw material into the existing molding die, and then heat the molding die to melt the plastic raw material and then mold it and cool it to shape. The disadvantages of this process are as follows: firstly, the diaphragm produced by this process has long production cycle, low efficiency and high cost; secondly, the finish of the product is far inferior to that of injection molding. Invention content: [0003] The purpose of the design of the present invention is to first solve the shortcomings in the background technology, and provide a method of using the existing plastic product injection molding me...

Claims

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Application Information

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IPC IPC(8): B01D25/12B29C45/27
Inventor 朱兴源
Owner 朱兴源
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