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Pinch roll interlock protection control method

A technology of interlocking protection and control methods, which is applied in the direction of rolling mill control devices, roll safety equipment, manufacturing tools, etc., can solve problems such as pinch roll mismatch, equipment damage, etc., to ensure smooth production and eliminate collisions risk effect

Active Publication Date: 2017-05-24
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem in the prior art that the thickness of the steel plate does not match the pinch roll, resulting in equipment damage, the purpose of the present invention is to provide a control method for pinch roll interlock protection

Method used

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  • Pinch roll interlock protection control method
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  • Pinch roll interlock protection control method

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Embodiment Construction

[0018] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] The invention discloses a control method for interlocking protection of pinch rollers. The main idea is to combine the existing automatic mode operation process and manual mode operation process to judge the occurrence of abnormal conditions in the respective modes and perform further control.

[0020] refer to Figure 5 , the present invention mainly comprises the following steps:

[0021] Step S1: Turn on the automatic mode.

[0022] Step S2: Judging whether the finishing mill has progressed to the penultimate pass, if yes, then go to step S3, if not, go back to step S1.

[0023] Step S3: Request the machine setting of the model computer, receive the steel plate information and the setting value of the upper computer, and execute the setting of the upper computer.

[0024] Step S4: Determine whether the model setti...

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PUM

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Abstract

The invention discloses a pinch roll interlock protection control method which comprises the following steps: Step 1, running pinch roll action under the automatic or manual mode; Step 2, judging whether finishing mill throws steel, if yes, moving to Step 3; otherwise, moving to Step 4; Step 3, carrying out the quick-opening process of cleaning between rolls; and Step 4, carrying out the lifting process of cleaning between rolls. According to the pinch roll interlock protection control method, under the conditions that the production technology is met and equipment safety is ensured, other detecting equipment of a rolling line area is introduced, and novel interlock protection logic is designed at the same time, so that the risk that a pinch roll is collided is effectively eliminated, and smooth production of a rolling line is ensured.

Description

technical field [0001] The invention relates to an automatic control method for spray cooling, in particular to a control method for pinch roller interlock protection. Background technique [0002] refer to Figure 1 to Figure 4 , the spray cooling system has 4 sets of water tanks and 5 sets of pinch rolls, which are arranged at a position 65m away from the center line of the finishing mill, such as figure 1 and figure 2 shown. The setting value of the pinch roller is issued by the host computer in the automatic mode, but some special situations will occur in actual use. Judging from the existing action flow, the original control program did not compare the actual value of the roll gap with the actual thickness of the steel plate to pass from receiving the host computer information or manually setting the value to the completion of execution, which is very easy resulting in the following: [0003] In the automatic mode, if the actual thickness of the steel plate is gre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/00B21B33/00
Inventor 李建功刘飞王红
Owner BAOSHAN IRON & STEEL CO LTD
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