Precise strip steel tail positioning control method for strip steel coiler

A control method and coiler technology, applied in the direction of tail end control, etc.

Inactive Publication Date: 2016-04-20
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a precise positioning control method for the tail of a strip steel coiler to solve the problem of lack of a high-precision positioning control method for the tail of the coiler in the prior art

Method used

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  • Precise strip steel tail positioning control method for strip steel coiler
  • Precise strip steel tail positioning control method for strip steel coiler
  • Precise strip steel tail positioning control method for strip steel coiler

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Embodiment 1

[0036] The embodiment of the present invention also provides a strip tail precise positioning control method of a strip coiler, the method comprising:

[0037] In step 201, the first signal sent by the synchronous grating is obtained, and the first signal is sent when the synchronous grating detects the end of the strip;

[0038] In step 202, after confirming that the first signal is that the end of the strip arrives at the synchronous grating detection area, obtain the recorded rotation number R of the coiler from the initial state to the current real-time update N , and calculate the real-time value of the coil diameter;

[0039]In step 203, according to the real-time value of the rolling diameter and the number of rotations R N Real-time calculation of the length S from the end of the strip to the coiler N ;

[0040] In step 204, determine the length S N Reach the deceleration length S for deceleration de , start the deceleration process.

[0041] In the embodiment of...

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Abstract

The invention is suitable for the technical field of strip steel coiler control, and provides a precise strip steel tail positioning control method for a strip steel coiler. The precise strip steel tail positioning control method comprises the following steps: obtaining a first signal sent by a synchronous grating, wherein the first signal is sent when the synchronous grating detects the tail of strip steel; after confirming that the first signal is that the tail of the strip steel reaches the detected area of the synchronous grating, obtaining recorded revolutions per minute RN, which is updated in real time, of the coiler from an initial state to a current state, and calculating a real-time value of a coiling diameter; calculating length SN from the tail of the strip steel to the coiler in real time according to the real-time value of the coiling diameter and the revolutions per minute RN; and while determining that the length SN reaches speed reduction length Sde used for speed reduction, starting a reduction process. According to the embodiment of the invention, the strip steel rail is precisely positioned, the speed reduction process is started at a proper moment, and a smooth speed set value is designed, so that the speed reduction process is very stable, and good control effect can be obtained.

Description

technical field [0001] The invention belongs to the technical field of strip steel coiler control, and in particular relates to a strip tail precise positioning control method of a strip steel coiler. Background technique [0002] During the rolling process, a coil of steel strip will experience several acceleration and deceleration processes. In order to improve productivity, the speed is very fast in the middle of the stable rolling stage, and when the tail of the strip is close to the coiler, it indicates that the coil is about to be rolled. At this time, the rolling speed needs to be gradually reduced until the tail of the strip reaches the coil. Reduce the speed to zero when taking off the machine. There are two issues to consider during the deceleration process. On the one hand, when to start deceleration. If the deceleration is too early, the speed of the belt tail will be zero before reaching the coiler; if the deceleration is too late, then The tape tail has not s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/72B21C47/02
CPCB21B37/72B21C47/02
Inventor 陈跃华
Owner WISDRI ENG & RES INC LTD
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