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High polymer plastic diaphragm pressurized vacuum injection molding system and molding method

A vacuum injection and polymer technology, applied in the field of polymer plastic diaphragm molding system manufacturing, can solve the problems affecting the quality and service life of diaphragm molding, and achieve the effect of reducing the cost of use

Active Publication Date: 2015-08-05
杭州兴源环保设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

What needs to be improved is: due to the presence of air bubbles in the polymer plastic during the melting and plasticizing process, the air bubbles are injected into the diaphragm injection molding cavity, and there are air pockets in the formed diaphragm, which directly affect the molding quality and service life of the diaphragm.

Method used

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  • High polymer plastic diaphragm pressurized vacuum injection molding system and molding method

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Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1: with reference to attached figure 1 . On the basis of background technology, a kind of polymer plastic diaphragm pressure vacuum injection molding system, the outlet of polymer plastic plasticizer 1 is connected with the inlet of pressurizing device 4, and the outlet material of pressurizing device 4 is connected with polymer plastic diaphragm The inlet of the injection mold 8 is connected, and the extruding cylinder 5 wall in the described pressurizing device 4 is equipped with a vacuum suction nozzle, and the outlet of the vacuum suction nozzle is connected with the inlet of the solenoid valve 11, and the outlet of the solenoid valve is connected with the suction of the vacuum suction machine 12. The port is connected; the spiral agitator 14 is installed under the piston head of the screw extrusion mechanism in the pressurizing device 4 . The inlet 6 wall of the polymer plastic diaphragm injection mold is equipped with a vacuum detection transmission se...

Embodiment 2

[0010] Embodiment 2: On the basis of Embodiment 1, a pressure vacuum injection molding method for a polymer plastic diaphragm is characterized in that: after the polymer plastic raw material is plasticized, it is heated into a molten state, and the plasticized plastic in the molten state enters The pressurizing device and the piston in the screw extrusion mechanism in the pressurizing device pressurize and inject the polymer plasticized plastic in the molten state into the molding cavity of the polymer plastic diaphragm mold, and the agitator located under the piston kneads and melts Plastic, continuously discharge the air bubbles in the molten plastic and suck out the air bubbles in the plastic through the vacuum suction nozzle and vacuum pump, so that the molten plastic is in a vacuum state, and then press it into the molding cavity of the polymer plastic diaphragm mold to press and shape After cooling, the mold can be opened to take out the diaphragm. When the vacuum degree...

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Abstract

The invention relates to a polymer plastic diaphragm pressurizing vacuum injection molding system which can discharge bubbles in molten plastics and form relevant vacuum, and a forming method; the outlet of a polymer plastic molding machine is communicated with the inlet of a pressurizing device; the outlet of the pressuring device is communicated with the inlet of a polymer plastic diaphragm injection mould; a vacuum nozzle is arranged on the wall of an extrusion tube in the pressurizing device; the outlet of the vacuum nozzle is communicated with the inlet of an electromagnetic valve; the outlet of the electromagnetic valve is communicated with a suction port of a vacuum suction machine; and a spiral stirrer is arranged below a piston head in a spiral extrusion mechanism in the pressurizing device. The system and the method have the advantages that: a pressurizing vacuumizing method is adopted, the problem of air pockets in a plastic diaphragm is fundamentally solved, the forming quality of the plastic diaphragm is ensured, the service life of the plastic diaphragm is greatly prolonged, the use cost of a user is greatly reduced, and difficult problems that people want to solve for a long time but cannot solve are solved.

Description

technical field [0001] The invention relates to a pressurized vacuum injection molding system and molding method for a polymer plastic diaphragm capable of discharging bubbles in molten plastic and forming a relative vacuum, and belongs to the field of manufacturing a polymer plastic diaphragm forming system. Background technique [0002] The applicant owns CN101249713B, the title is "polymer plastic diaphragm pressurized injection molding method and molding system", the outlet of the polymer plastic plasticizer is connected to the inlet of the pressurizing device, and the outlet material of the pressurizing device is injected with the polymer plastic diaphragm The inlet of the mold is connected. The pressurizing device is composed of an air cylinder or a hydraulic cylinder and an extrusion cylinder, the piston in the extrusion cylinder is connected with the piston rod of the air cylinder or hydraulic cylinder and there are two or more outlets of the pressurization extrusion...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/63B29C45/76
Inventor 周立武徐孝雅
Owner 杭州兴源环保设备有限公司