Extrusion machine liquid charging valve and extrusion machine with same

A technology of extruder and liquid filling valve, which is applied in the direction of press machine, valve operation/release device, lift valve, etc. The effect of saving pipes

Active Publication Date: 2014-06-25
TAIYUAN HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The patent application with the application number 200510042220.1 discloses a liquid filling valve, which is opened by plunger self-priming and closed by a spring. The fatigue caused by the long-term use of the spring or the reciprocating process is stuck will cause the equipment to malfunction, and due to the spring Located inside the equipment, it is difficult to disassemble and maintain
Therefore, there is great uncertainty in this switching method, which reduces the production efficiency of the extruder equipment to a certain extent.

Method used

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  • Extrusion machine liquid charging valve and extrusion machine with same
  • Extrusion machine liquid charging valve and extrusion machine with same
  • Extrusion machine liquid charging valve and extrusion machine with same

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Embodiment Construction

[0042] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the invention is capable of various changes in different embodiments without departing from the scope of the invention, and that the description and illustrations therein are illustrative in nature and not limiting. this invention.

[0043] Such as figure 1 As shown, the liquid filling valve for an extruder of the present invention includes a valve core 1 , a valve body 14 , a rear hydraulic cylinder 20 , a solenoid valve 32 and an oil return pipeline 70 .

[0044] The main cylinder 92 of the extruder is cylindrical, and a plunger 91 is arranged in the inner space of the main cylinder 92. A high-pressure oil pipe 921 and a liquid injection and discharge hole 922 are provided on the rear end surface of the main cylinder 92 respectively. The liquid filling and draining hole 922 can be located at the cen...

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Abstract

The invention provides an extrusion machine liquid charging valve which comprises a valve body, an oil return pipeline and a valve element arranged in the valve body. The extrusion machine liquid charging valve further comprises a rear hydraulic cylinder fixed to the valve body, a hydraulic piston is arranged in the rear hydraulic cylinder, and a cavity inside the rear hydraulic cylinder is divided into a rod cavity and a rodless cavity by the piston. The front end of the valve element stretches out of the valve body, and the rear end of the valve element is connected with the piston. The rear hydraulic cylinder can drive the valve element to advance or retreat. An oil cylinder controls the extrusion machine liquid charging valve to be opened and closed, and the extrusion machine liquid charging valve is fast, reliable and compact in structure, and is specifically suitable for a horizontal extrusion machine.

Description

technical field [0001] The invention relates to the control technology of the main cylinder of the extrusion machine, in particular to a liquid filling valve of the extrusion machine, and also relates to the main cylinder of the extrusion machine and the extrusion machine including the liquid filling valve. Background technique [0002] In the extrusion machine, in order to increase the idle stroke speed and return stroke speed of the hydraulic press, a large diameter filling valve is widely used to realize fast and large flow filling and draining of the main cylinder of the hydraulic press. The charge valve also acts to isolate the fuel tank from the master cylinder when the master cylinder is pressurized. With the development of the extrusion machine, improving the production efficiency of the extrusion machine equipment operation, that is, shortening the non-extrusion time, has become a main goal of the extrusion machine design. [0003] The patent application with the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K1/36F16K27/02F16K31/122F16K31/06
CPCB30B15/165
Inventor 丁耀林
Owner TAIYUAN HEAVY IND
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