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Hot rolling mill rolling control system used for improving rolling accuracy

A technology of control system and hot rolling mill, which is applied in fluid pressure actuation system components, mechanical equipment, fluid pressure actuation devices, etc., can solve the problems of low control precision and inability to realize constant roll gap rolling, and achieve rolling Effect of Accuracy Improvement

Inactive Publication Date: 2014-01-15
NORTHEAST LIGHT ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing hot rolling mill control system cannot realize constant roll gap rolling under manual control, resulting in low control precision. Control System

Method used

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  • Hot rolling mill rolling control system used for improving rolling accuracy

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specific Embodiment approach 1

[0019] Specific implementation mode one: refer to figure 1 Describe this embodiment in detail. A hot rolling mill rolling control system for improving rolling precision described in this embodiment includes: a reduction control system 1, a hydraulic servo system 2, a signal processing module 3, and a controller 4. Servo amplifier 5, servo valve 6, hydraulic cylinder 7, oil tank 8 and displacement sensor 9;

[0020] The displacement feedback signal output end of the displacement sensor 9 is connected to the feedback signal input end of the signal processing module 3; the control signal output end of the depression control system 1 is connected to the control signal input end of the hydraulic servo system 2, and the control signal output end of the hydraulic servo system 2 Connect the control signal input terminal of the signal processing module 3, the signal processing module 3 is used to process the signal it receives to obtain the displacement difference, and the difference s...

specific Embodiment approach 2

[0024] Embodiment 2: The rolling control system of a hot rolling mill for improving rolling precision described in Embodiment 1 is further described. In this embodiment, it also includes: a pressure sensor 10 and a switch 11;

[0025] The displacement feedback signal output end of the displacement sensor 9 is connected to a feedback signal input end of the switch 11, the pressure feedback signal output end of the pressure sensor 10 is connected to the other feedback signal input end of the switch 11, and the feedback signal output end of the switch 11 is connected to The feedback signal input end of the signal processing module 3 ; the pressure sensor 10 is used to detect the pressure in the hydraulic cylinder 7 .

[0026] A rolling control system for a hot rolling mill used to improve rolling precision is working. When the switch 11 connects the pressure sensor 10 to the signal processing module 3, the pressing control system 1 sends a pressure to the hydraulic servo system 2....

specific Embodiment approach 3

[0027] Embodiment 3: According to Embodiment 1, a rolling control system for hot rolling mills for improving rolling precision will be further described. In this embodiment, it also includes: cooler 12, which is used for Yu is cooling the oil in the oil tank 8.

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Abstract

The invention provides a hot rolling mill rolling control system used for improving rolling accuracy, and relates to a hot rolling mill control system. The hot rolling mill rolling control system used for improving rolling accuracy solves the problems that an existing hot rolling mill control system can not realize constant roll bit rolling under manual control, so that control accuracy is low. The hot rolling mill rolling control system used for improving rolling accuracy can detect the displacement of a piston inside a hydraulic cylinder through a displacement sensor, and compares detected displacement signals with roll bit control signals to obtain a displacement difference, a servo valve carries out conversion between electrical signals and flow signals on the received displacement difference, oil feeding amount of an oil tank to the hydraulic cylinder is controlled, the displacement of the piston of the hydraulic cylinder is further accurately controlled, constant roll bit rolling is finally achieved, and the rolling accuracy of a hot rolling mill is improved by 40%.

Description

technical field [0001] The invention relates to a hot rolling mill control system. Background technique [0002] Factors such as the control accuracy and response speed of the AGC hydraulic control system and control method of the hot rolling mill determine the final performance of the plate and the position of the plate in the market, and also determine the development speed of high value-added products. At present, the existing hot rolling mill control system lacks automatic control means during operation, and the operator can only manually control the rolling according to the display of the indicator panel and previous experience. During rolling, the roll gap or pressure cannot be kept constant. As a result, rolling precision is extremely low. Contents of the invention [0003] The present invention aims to solve the problem that the existing hot rolling mill control system cannot realize constant roll gap rolling under manual control, resulting in low control precisio...

Claims

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Application Information

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IPC IPC(8): F15B9/02F15B21/04
Inventor 黄岩超于帆吕建伟尹富新王金花赵春岩巩全军
Owner NORTHEAST LIGHT ALLOY CO LTD
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