Control method of movable pinch roller in strip coiling process
A control method and a technology of movable clamps, which are applied in the direction of rolling mill control devices, metal rolling, manufacturing tools, etc., can solve the problems of low coiling quality, low yield and inaccurate timing of strip tail coiling
Active Publication Date: 2016-08-24
GUANGXI LIUZHOU YINHAI ALUMINUM IND
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Problems solved by technology
[0005] The object of the present invention is to provide a control method for the movable pinch roller in the strip coiling process, which can solve the inaccurate timing of the active pinch roller clamping the strip in the existing strip coiling process, and the The problem of low coiling quality and yield at the end
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[0056] The present invention will be described in further detail below in conjunction with accompanying drawing embodiment:
[0057] According to the analysis of the tailing process of the coil, the principle of the clamping action of the movable pinch roller is as follows: when the tail of the strip is about to be thrown out from the roll gap of the last stand of the continuous rolling unit, the movable pinch roller should just clamp it. Strip. In order to achieve the above effect, in this embodiment, a position sensor is installed on the drive mechanism of the movable pinch roller in the pinch roller group to ensure that the vertical height of the movable pinch roller can be fed back in real time through the position sensor.
[0058] The control method of the movable pinch roller in the coiling process of the present embodiment comprises the following steps:
[0059] A. During the coiling process of the strip, during the coiling cycle from the beginning of the coiling to th...
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Abstract
The invention discloses a method for controlling movable pinch rollers in the coiling process of strips, relates to the technical field of metal pressure processing, and comprises the following steps: A. In the coiling cycle after taking, every time the reel of the coiler rotates a circle, the basic automation system calculates the real-time outer radius of the coil wound on the reel; B. According to the real-time calculation of the outer radius of the coil, calculate The real-time pre-swing position of the movable pinch roller, adjust the movable pinch roller to the calculated pre-swing position, and wait for the basic automation system to send the signal to start clamping the strip; The number of rotations of the reel when thrown out, when the encoder installed on the reel detects that the reel turns to this number of turns, the basic automation system sends a clamping signal to the movable pinch roller, so that the movable pinch roller clamps the belt material. The invention can effectively reduce the unqualified length of the tail of the strip and improve the finished product rate.
Description
technical field [0001] The invention relates to the technical field of metal pressure processing, in particular to a method for controlling movable pinch rollers during strip coiling. Background technique [0002] During continuous rolling of the coil, when the coil reaches the end of the strip, it is necessary to send an input signal to the driving mechanism of the movable pinch roller arranged between the continuous rolling stand group and the coiler at an appropriate time, so that the movable pinch roller After walking for a period of time, the strip can be clamped at the right time to ensure that the tail of the strip does not lose tension after being thrown out from the continuous rolling stand. [0003] The portion of the strip that is in contact with the movable pinch rolls is generally rejected due to poor surface quality. Therefore, if the input time of the movable pinch roller is too early, the movable pinch roller will be pressed on the surface of the strip prema...
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IPC IPC(8): B21C47/34B21B37/00B21B39/02
Inventor 许磊刘栩蒋婷李江宇
Owner GUANGXI LIUZHOU YINHAI ALUMINUM IND