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Proportional direct driving system in hydraulic machine for warm cold extrusion

A technology of extruding hydraulic presses and proportions, which is applied in the field of hydraulic machinery, can solve the problems of high cost and complex structure of hydraulic presses, and achieve the effects of improving efficiency, beautiful lines, and reducing calorific value

Inactive Publication Date: 2006-02-01
TIANJIN TIANDUAN PRESS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If several stop positions are required, each position requires a travel switch plus its matching switching logic, the structure is complex, and the cost of the hydraulic machine is high

Method used

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  • Proportional direct driving system in hydraulic machine for warm cold extrusion

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Embodiment Construction

[0034] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0035] see figure 1 .

[0036] The proportional direct drive system of the warm and cold extrusion hydraulic press is composed of the self-weight fast lower block 4, the ejector valve block 10, the pump outlet valve block 8 and the proportional pump group 7. Self-weight fast lower block 4 is connected with master cylinder 3 and pump outlet valve block 8, ejector valve block 10 is connected with ejector cylinder 11 and pump outlet valve block 8, pump outlet valve block 8 is connected with proportional pump group 7.

[0037] 1. Self-weight quick lower block 4: Self-weight quick lower block 4 is composed of 6 plug-ins, 2 two-position four-way electromagnetic slide valves and 1 ball valve. The 6 plug-ins are respectively connected with the sole...

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Abstract

The present invention relates to a warm-cold extrusion hydraulic press proportional direct-driving system. Said system includes the following components: dead-weight quick falling block, main cylinder, pump outlet valve block, liftout valve block, liftout cylinder, proportional pump, oil tank, plug-in components, electromagnetic valves and control device. Said invention also provides their connection mode. Said invention is applicable to tension process of various materials and forms.

Description

technical field [0001] The invention belongs to the technical field of hydraulic machinery, in particular to a proportional direct drive system of a warm-cold extrusion hydraulic press. Background technique [0002] Currently known warm-cooled hydraulic machines need to meet the technical requirements, especially when controlling large masses or high speeds. With ordinary solenoid valves and pumps, sudden braking of loads can cause pressure spikes in the system that are detrimental to long-term performance. and shock. The system lacks flexibility, if it is necessary to change the stop position of the actuator, it is necessary to actually change the position of the travel switch or the proximity switch or the proximity switch. If several stop positions are required, each position requires a travel switch plus its supporting switching logic, which makes the structure complex and the cost of the hydraulic machine high. Contents of the invention [0003] The present inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/00F15B11/02B30B15/26B21D26/02
Inventor 罗丽丽
Owner TIANJIN TIANDUAN PRESS CO LTD
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