Hydraulic electrohydraulic ratio control system and method for prebending machine
An electro-hydraulic proportional and control system technology, applied in fluid pressure actuation system components, mechanical equipment, fluid pressure actuation devices, etc. Effect
Inactive Publication Date: 2009-06-24
TIANSHUI METALFORMING MACHINE TOOL GROUP
0 Cites 9 Cited by
AI-Extracted Technical Summary
Problems solved by technology
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 moreMethod 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 moreAbstract
The invention discloses a hydraulic pressure electric liquid proportional control system for a prebending machine, aiming at solving the problem of high price of a numerical control system of the existing steel plate prebending machine. The proportional control system comprises a hydraulic proportional valve closed-cycle control system and a slide block external ring closed-cycle control system, wherein, the hydraulic proportional valve closed-cycle control system comprises a hydraulic proportional amplifier, an electric liquid proportional direction valve with high flow rate and a valve case inner loop feedback part, and the numerical control system is electrically connected with a proportional valve amplifier by voltage control signals; the proportional valve amplifier is electrically connected with the electric liquid proportional direction valve with high flow rate by high driving currents; the electric liquid proportional direction valve with high flow rate is connected with a hydraulic system of a main oil cylinder of the prebending machine; and the main oil cylinder of the prebending machine is connected with the slide block of the prebending machine by a mechanical system. By adjusting DNC-60PS control parameters, the proportional control system guarantees the start, the high-speed rise, the low-speed rise, the positioning stop, the pressure maintenance, the pressure relief and the fast return of the slide block of the prebending machine, and has stable running of the entire process, high response speed and high positioning accuracy.
Application Domain
Technology Topic
Image
Examples
- Experimental program(1)
Example Embodiment
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


Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
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 Similar technology patents
Screw rotor end face tooth type
InactiveCN102465871AImprove volumetric efficiencyRun smoothlyRotary piston pumpsRotary piston liquid enginesEllipseEngineering
Owner:上海格什特螺杆科技有限公司
Neurology department clinical training and massaging device and use method thereof
InactiveCN108309766AStable structureRun smoothlyElectrotherapyGymnastic exercisingEngineeringNeurology department
Owner:李华
Arc core-pulling device for die
Owner:厦门市方圆通模具有限公司
Online adjustable exciting vibration equipment
Owner:BIRTLEY TIANJIN IND EQUIP
Multifunctional roller coater
Owner:东莞市欧西曼机械设备有限公司
Classification and recommendation of technical efficacy words
- Quick response
- Run smoothly
Data buffer store method and system at duster environment
Owner:KINGDEE SOFTWARE(CHINA) CO LTD
Conference-call initiation
InactiveUS20060088152A1Quick responseKnow total numberMultiplex system selection arrangementsSpecial service provision for substationWeb pageConference call
Owner:AUTHORIZE NET
Voice control method and electronic device
Owner:LENOVO (BEIJING) CO LTD
Wireless earphone establishing interaction with earphone box
InactiveCN107809696AQuick responseThe system responds quicklyMicrophonesSignal processingLoudspeakerNoise-canceling microphone
Owner:成都必盛科技有限公司 +1
Specialty gas analysis system
InactiveUS6748334B1Reduce the impactQuick responseColor/spectral properties measurementsSpecial data processing applicationsSpectral analysisProduct gas
Owner:MEYER RICHARD T +1