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Tension roll control device for plate and strip processing line and tension control method

A technology of tension control and tension roller, which is applied in the direction of thin material handling, transportation and packaging, winding strips, etc., and can solve problems such as poor stability, low control precision, and difficult control

Active Publication Date: 2013-05-01
安徽马钢输送设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Aiming at the problems of high cost, difficult control and poor stability in existing direct tension control; difficult debugging and low control precision of indirect tension control, the present invention provides a tension roller control device and a tension control method for a strip processing line, The method and device have the advantages of good operability, high stability and good durability

Method used

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  • Tension roll control device for plate and strip processing line and tension control method
  • Tension roll control device for plate and strip processing line and tension control method
  • Tension roll control device for plate and strip processing line and tension control method

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Experimental program
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Effect test

Embodiment 1

[0066] Such as figure 1 As shown, a tension roller tension control device on a strip processing line includes a tension roller group 20, a deviation correction device 21, an auxiliary roller frequency converter 15 and a main roller frequency converter 16; an auxiliary roller speed encoder 3, a main roller speed Encoder 6 and load distributor 7; tension roller group 20 includes auxiliary roller and main roller; auxiliary roller is connected with auxiliary roller motor, main roller is connected with main roller motor, auxiliary roller and main roller are controlled by auxiliary roller motor and main roller respectively Driven by a motor, the auxiliary roller speed encoder 3 detects the rotational speed signal of the auxiliary roller motor; the auxiliary roller frequency converter 15 is connected with the auxiliary roller motor and the auxiliary roller speed encoder 3; the main roller speed encoder 6 detects the main roller motor speed signal; The frequency converter 16 is connec...

Embodiment 2

[0072] Such as figure 2 As shown, a tension roller tension control device on a strip processing line includes a tension roller group 20, a deviation correction device 21, an auxiliary roller frequency converter 15 and a main roller frequency converter 16; the tension roller group 20 includes an auxiliary roller and a main roller The auxiliary roller and the main roller are respectively driven by the auxiliary roller motor and the main roller motor; it also includes the auxiliary roller speed encoder 3, the main roller speed encoder 6 and the load distributor 7, and the auxiliary roller speed encoder 3 detects the auxiliary roller motor speed signal; the auxiliary roll frequency converter 15 is connected with the auxiliary roll motor and the auxiliary roll speed encoder 3; the main roll speed encoder 6 detects the speed signal of the main roll motor; the main roll frequency converter 16 is connected with the main roll motor and the main roll speed encoder 6 ; Both ends of the ...

Embodiment 3

[0079] A method for controlling the tension of tension rollers on a strip processing line, comprising the following steps:

[0080] A) Tension roller master-slave load distribution: select two frequency conversion motors in the tension roller control system to control the main roller and auxiliary roller, one frequency conversion motor is the main drive to control the main roller, defined as the main roller motor, the main roller motor Using speed and torque double closed-loop control, through the vector frequency converter, the entire tension roll control system has a speed reference point, the frequency converter of the main roll motor is set to speed control mode; the other motor is a slave drive to control the auxiliary roll , is defined as the auxiliary roller motor, the frequency converter of the auxiliary roller motor is set to the torque control mode, and the additional speed setting value Δn is input through the speed control unit, when the speed control unit is satura...

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Abstract

The invention discloses a tension roll control device for a plate and strip processing line and a tension control method, belonging to the field of tension control of tension rolls on the plate and strip processing line in the metallurgical industry. The tension roll control device comprises a tension roll group, an auxiliary roll frequency converter and a main roll frequency converter, and further comprises an auxiliary roll speed encoder, a main roll speed encoder, a load distributor, a tension regulator, a feedforward compensation unit and a tensiometer, wherein two ends of the load distributor are respectively connected with the auxiliary roll frequency converter and the main roll frequency converter; the auxiliary roll frequency converter comprises an auxiliary roll rotation speed control unit and an auxiliary roll torque control unit; and the main roll frequency converter comprises a main roll rotation speed control unit and a main roll torque control unit. The tension roll control device has the advantages of high control response speed and high control precision. A control method of the tension roll control device comprises the steps of: (1) main / slave load distribution for the tension rolls; (2) complex tension control of the tension rolls; and (C) dynamic compensation. The method has the advantages of small steady state error of a torque loop, short anti-disturbance recover time, constant rotation speed and good anti-disturbance performance.

Description

technical field [0001] The invention relates to the field of tension control of tension rollers on a strip processing line in the metallurgical industry. Specifically, the invention relates to a tension roller control device and a tension control method for a strip processing line. More specifically, it relates to a A tension roller tension control device on a strip processing line and a tension control method for improving control precision and ensuring the quality, efficiency and reliability of strip processing in a production line. Background technique [0002] The quality of strip processing is mainly measured by the thickness and shape of the strip, which largely depends on the tension control. Proper strip tension is the condition and improvement to ensure the normal operation of the strip treatment process. The key to product quality. From the point of view of its technological process, in the strip processing unit, the strip runs with tension. During operation, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H23/192
Inventor 孙蓉琳曹烈
Owner 安徽马钢输送设备制造有限公司
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