Stripper in use for large sized hydraulic machine

A technology of hydraulic press and demoulding machine, which is applied in the field of hydraulic presses, and can solve the problems that the overall structure of the hydraulic press is huge and cannot reach the return force of the cylinder piston of a large hydraulic machine, and achieve the effect of compact structure, large demoulding force, and simple production

Inactive Publication Date: 2009-04-22
TIANJIN TIANDUAN PRESS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the structure of the two-way cylinder of the existing hydraulic machine cannot reach the required return force of the oil cylinder piston of the large hydraulic machine, and the two-way cylinder structure is used for a large hydraulic machine of several thousand tons, which will make the overall structure of the hydraulic machine huge.

Method used

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  • Stripper in use for large sized hydraulic machine

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Embodiment Construction

[0017] In order to further understand the invention content, characteristics and effects of the present invention, the following embodiments are enumerated hereby, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0018] Such as figure 1 As shown, the demoulding machine for a large hydraulic press of the present invention includes a cylinder 7 and a plunger rod 10 that is located in the cylinder 7 and can move up and down along its inner wall. The upper end of the cylinder 7 is an open structure And be covered with top cover 16 by screw 3, this top cover 16 center is formed with the through hole corresponding with the rod body diameter of plunger rod 10, and the lower end of cylinder body 7 is formed with the oil port 18 of its internal oil inlet. The bottom end of the plunger rod 10 is formed with a boss 15 whose diameter is larger than the rod body, and the upper end of the plunger rod 10 passes through the top cover 16 . A cylinder m...

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Abstract

The invention relates to large scale hydraulic press using stripper that contains cylinder and piston. Opening structure is set on the top of cylinder, and a top cover is fixed through nut. Through hole is formed at the center of top cover corresponding to the diameter of bar of piston. The down part of cylinder forms oil gat that pouring oil in it. The bottom of piston bar is formed on the boss that the diameter is larger than the bar. The upper end of piston bar passes through top cover. A cover board is set on the upper part of the piston bar. A circular board, whose upper opening is fixed with the down end surface of cover board, is sleeved outside the cylinder. Cylinder guide pot busing is set between the side face of cylinder and piston bar. A scale plate is fixed on the side of cylinder. Lead limit switch is set on the scale plate. And lead limit bumping ring is set outside the down end of circular board. The invention is easy to manufacture, and has tight structure and strong knockout press. It could reduce the entire volume of hydraulic press machine.

Description

technical field [0001] The invention belongs to a hydraulic machine, in particular to a large-scale hydraulic machine demoulding machine with simple structure, large demoulding force and the ability to reduce the overall volume of the hydraulic machine. Background technique [0002] At present, along with the development of industry, large-scale hydraulic presses have appeared, such as the appearance of large-scale hydraulic presses of several thousand tons. The important working part of the hydraulic press is the cylinder that acts as a punch. The oil cylinder is generally composed of a cylinder body with an oil port and a piston arranged inside the cylinder body, which can move up and down along the inner wall of the cylinder body under the action of oil pressure. The usual hydraulic press uses a two-way cylinder to drive the up and down movement of the piston. [0003] However, for a large hydraulic press of several thousand tons, due to the strong adhesion of the workp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B30B15/00
Inventor 张淳
Owner TIANJIN TIANDUAN PRESS CO LTD
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