Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hydraulic control system and hydraulic control method of front blank pushing cylinder of perforating machine

A hydraulic control system and punching machine technology, applied in the field of punching machine control, can solve problems such as difficulty in finding faults, large hydraulic station capacity, and excessively large valve block 8, so as to improve shock vibration and slight pause, low cost, The effect of reducing the amount of use

Active Publication Date: 2014-01-22
TAIYUAN HEAVY IND +1
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Design the system capacity according to the existing hydraulic control schematic diagram, often the capacity of the hydraulic station is relatively large
[0010] (3) The existing hydraulic control system is also relatively complicated, the valve block 8 is too large and difficult to process, and it is difficult to find faults
[0011] (4) When the system is shut down for a long time or the piercer is overhauled, if there is residual pressure in the entire system, the pushing cylinder 7 will automatically go out, which is also a big safety hazard

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydraulic control system and hydraulic control method of front blank pushing cylinder of perforating machine
  • Hydraulic control system and hydraulic control method of front blank pushing cylinder of perforating machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] 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.

[0028] Such as figure 2 As shown, the present invention is a hydraulic control system for the forward cylinder of the piercing machine, which includes a proportional valve 1 and two check valves 2 and 3 . The applied punching machine forward cylinder 4 also includes a rodless chamber 41 and a rod chamber 42, and the hydraulic oil pipe includes a pressure oil pipe P and an oil return pipe T. Connect the pressure oil pipe P and oil return pipe T to the proportional valve 1, and then connect the proportional valve 1 to control the rodless chamber 41 through the first oil pi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a hydraulic control system and a hydraulic control method of a front blank pushing cylinder of a perforating machine. The front blank pushing cylinder comprises a rod cavity and a rodless cavity, a hydraulic oil pipe comprises a pressure oil pipe and an oil return pipe which are respectively communicated to a proportioning valve, and the proportioning valve is communicated to the rodless cavity through a first pipe and communicated to the rod cavity through a second pipe. A valve for achieving forward breakover and reverse check is arranged on the second pipe. The rod cavity is communicated to the pressure oil pipe through a third pipe, and a valve for achieving reverse breakover and forward check is arranged on the third pipe. Compared with the prior art, the using amount of the valves is decreased, and multiple control actions are finished by utilizing one proportioning valve. The impact shake and slight pause problems when the blank pushing cylinder is switched from rapid speed to work speed are effectively solved. In addition, the design capacity of the hydraulic system is effectively reduced by utilizing two non-return pipes, and the manufacture cost is reduced.

Description

technical field [0001] The invention relates to a piercing machine control technology in the production of seamless steel pipes, in particular to a hydraulic proportional control system and a control method for a steel pipe piercing machine forward blank cylinder. Background technique [0002] In the steel pipe piercing machine, the action sequence of the push cylinder is: from fast forward to work forward (slow speed) to fast return. Such as figure 1 As shown, the pushing cylinder 7 has a rodless cavity 71 and a rod cavity 72 . There is a valve block 8 in the valve frame 9 of the hydraulic control system of the pushing cylinder 7, and the valve block 8 includes a left electromagnetic valve 81, a left throttle valve 82, a right electromagnetic valve 83 and a right throttle valve 84. [0003] The above-mentioned actions of the pushing cylinder 7 are controlled in combination by the left electromagnetic valve 81, the left throttle valve 82, the right electromagnetic valve 83...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B21D28/28
Inventor 谢增刚
Owner TAIYUAN HEAVY IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products