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Electrical control system for heavy full-hydraulic four-roller plate reeling machine based on PLC

An electric control system and four-roll plate bending machine technology, applied in the mechanical field, can solve the problems of no manufacturer production, etc., and achieve the effect of solving the problem of speed matching

Inactive Publication Date: 2018-06-05
魏莹
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In my country, there are already manufacturers producing plate rolling machines driven by motors or mechanical and hydraulic hybrid drives with a thickness of rolled steel plates below 180mm, but there are no manufacturers of fully hydraulic plate rolling machines with a thickness of rolled steel plates exceeding 180mm in China, especially The large-scale plate rolling machine with mechanical, electrical and hydraulic integration is even more blank in China.

Method used

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  • Electrical control system for heavy full-hydraulic four-roller plate reeling machine based on PLC
  • Electrical control system for heavy full-hydraulic four-roller plate reeling machine based on PLC
  • Electrical control system for heavy full-hydraulic four-roller plate reeling machine based on PLC

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Embodiment Construction

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] like figure 1 , The main mechanical components of the four-roller plate rolling machine are upper roller, lower roller, front side roller, rear side roller, hydraulic drive device, reducer and hydraulic motor. The upper roller is fixed between the frames, the lower roller is located at the lower end of the upper roller, and the two side rollers are located on both sides of the lower roller. The lifting movement of the lower roller and the two side rollers is driven by hydraulic cylinders at both ends. The upper and lower rollers are both main rotating drive rollers. The rotation of the upper roller adopts the full hydraulic drive mode of output torque of multiple hydraulic motors and the confluence of the reducer, and the rotation of the lower roller adopts the transmission structure of a single hydraulic motor and reducer.

[0016] In the steel ...

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Abstract

The invention discloses an electrical control system for a heavy full-hydraulic four-roller plate reeling machine based on a PLC. Distributed control over the PLC is achieved through a Prufibus-DP network, and the full-hydraulic four-roller plate reeling machine can be automatically controlled through the PLC technology with a position closed-loop control algorithm and a rotating speed closed-loopcontrol algorithm. The electrical control system can operate normally and stably, the position of a lifting roller and the rotating speed of an upper roller and a lower roller can be accurately and automatically controlled, and the speed matching problem of two main driving rollers is solved.

Description

technical field [0001] The invention relates to an electrical control system for a heavy-duty full-hydraulic four-roller plate rolling machine based on PLC, which is suitable for the mechanical field. Background technique [0002] The plate rolling machine is a device that continuously bends metal sheets in multiple passes to produce permanent plastic deformation of the sheet. Equipment. In my country, there are many manufacturers of plate bending machines that are driven by electric motors or mechanically and hydraulically driven with a thickness of 180 mm or less, but there are no fully hydraulic plate bending machines that roll steel plates with a thickness of more than 180 mm or more in China. The large-scale plate rolling machine that integrates machinery, electricity and hydraulics is a blank in China. In recent years, the development of the petroleum refining and chemical industry has put forward higher requirements for cylinder parts, requiring large diameter, incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D5/14B30B15/26
CPCB21D5/14B30B15/166B30B15/26
Inventor 魏莹
Owner 魏莹
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