Method for increasing response speed of flying shear

A technology of response speed and flying shear, which is applied in the field of metallurgical rolling, can solve problems such as piled steel accidents and flying shears not responding well, and achieve the effects of ensuring timeliness, improving response speed, and shortening the action cycle

Active Publication Date: 2020-12-11
SICHUAN DAZHOU IRON & STEEL GROUP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the acceleration of the production rhythm, the flying shears of rolling steel cannot respond when the flying shears complete the cutting of the head and tail, which leads to the accident of stacking steel

Method used

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  • Method for increasing response speed of flying shear
  • Method for increasing response speed of flying shear
  • Method for increasing response speed of flying shear

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples and accompanying drawings. As a limitation of the present invention.

[0037] Example:

[0038] In this embodiment, it is achieved through the joint action of several measures for rolling a steel bar 2# flying shear. During the implementation of the embodiment, continuous debugging is required to achieve the target effect. This embodiment adopts Siemens STEP software and 6RA7025 DC speed control device. Including the following measures:

[0039] A. If Figure 5 As shown, the thermal detection signal of the flying shear is changed from the previous level signal to the edge signal by using the rising edge command in the Siemens STEP software. The edge signal is also called a pulse signal. The difference between a pulse signal and a level signal is that the signal intercepted ...

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Abstract

The invention discloses a method for increasing the response speed of a flying shear. The method comprises the following steps: performing rising edge processing on a thermal detection signal in a control software program corresponding to the flying shear; locking the state of the signal by using the rising edge of the signal, and resetting the locked state by using the normally closed state of the signal after time delay to realize filtering processing of the signal; adjusting transmission parameters of the direct-current speed regulation device, wherein PI parameters of a speed loop system and a current loop system of the direct-current speed regulation device are mainly adjusted, and a speed loop system curve and a current loop system curve must be guaranteed as a second-order damping system; and on the basis of an original program, newly adding a calculation program block for the shearing speed of the flying shear, and enabling the calculation program block to carry out rising edgeand falling edge processing on signals of the proximity switch. According to the invention, through analysis and calculation of system configuration, a control program of the flying shear can be properly optimized to ensure timeliness of signal reception of the flying shear; and an electric transmission system is properly optimized by matching with a control program, so that the purpose of shortening the action period of the flying shear is achieved, and the response speed of the flying shear is increased.

Description

technical field [0001] The invention relates to the technical field of metallurgical rolling, in particular to a method for improving the response speed of flying shears. Background technique [0002] With the continuous improvement of bar production technology, the continuous and automatic level of bar production line is constantly improving. Flying shear is one of the important shearing equipment on bar production line, and its response speed will directly affect the production efficiency of the entire production line. . Due to the accelerated production pace of steel rolling flying shears, the phenomenon that the flying shears cannot respond when the head and tail are cut is completed, which leads to steel stacking accidents. Contents of the invention [0003] The invention provides a method for improving the response speed of flying shears, which is used for the purpose of shortening the action period of flying shears and improving the response speed of flying shears....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/416
CPCG05B19/4163G05B2219/36521
Inventor 钟有松邱达全王智刚胡兴川
Owner SICHUAN DAZHOU IRON & STEEL GROUP
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