A detection system and method for strip crescent defects in cold rolling production line
A defect detection and crescent technology, applied in measuring devices, material analysis through optical means, instruments, etc., can solve the problems of low cost and high investment cost, improve the yield and product quality, have strong anti-interference ability, and avoid breakage Bring the effect
Active Publication Date: 2017-03-29
BEIJING SHOUGANG AUTOMATION INFORMATION TECH
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Problems solved by technology
[0003] At present, there is no manufacturer of strip steel crescent testing equipment in the market. This crescent testing equipment is made based on the principle of a width gauge, so it has the function of a width gauge. The cost of input for similar products is very high, and the cost of this testing equipment is relatively high. Low, can fully meet the needs of on-site production
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[0018] Step 1. The position of the edge of the moving strip is detected by the laser sensor, the PLC drives the synchronous motor to rotate, and the value of the laser sensor is collected.
[0019] Step 2. Use the industrial PLC module to collect the state of the laser sensor by connecting the cable. The PLC judges whether the laser sensor detects the edge of the strip. When the state of the laser in the PLC changes, the PLC judges the edge of the strip. When the position of the edge changes, the synchronous motor is controlled by the PLC to rotate, and the position of the laser sensor is changed through the actuator until the PLC thinks that the laser finds the position of the edge of the strip and stops moving.
[0020] Step 3. Use the industrial PLC module to collect the data of the grating ruler by connecting the cable, and measure the moving distance of the laser through the grating ruler. When the changes of the grating scales on the working side and the driving side are...
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A cold rolling production unit strip steel crescent defect detecting system and a method thereof belong to the field of instrument detection. According to the cold rolling production unit strip steel crescent defect detecting system, a laser sensor tracks the edges of strip steel and an industrial PLC (programmable logic controller) module controls a synchronizing motor to achieve a strip steel tracking function; the industrial PLC module controls the action of the synchronizing motor to collect the measuring data change of grating to calculate the width change of the strip belt; the industrial PLC module performs logic operation on the width of the strip steel during a production process to measure and calculate out whether crescent defects are produced. The cold rolling production unit strip steel crescent defect detecting system has the advantages of being capable of effectively adjusting technological parameters through crescent detection to avoid strip breakage due to the crescent defects, to guarantee stable operation of production lines and to improve the yield and the product quality. The cold rolling production unit strip steel crescent defect detecting system also has the advantages of free from contact with the strip steel, high in detecting precision and antijamming capacity and easy to maintain.
Description
technical field [0001] The invention belongs to instrument detection and application. Through the application of laser sensors, it can detect the change of the width of the strip steel in the production process of the cold rolling production line, and judge whether there is a crescent in the strip steel through the change of the width of the strip steel. After the operator adjusts the process, Avoid affecting the production control of the unit due to the crescent of the strip. Background technique [0002] The production of cold-rolled coils needs to go through many processes. The main processes of cold-rolling are normalized pickling, twenty-high rolling mill, decarburization annealing, annular annealing furnace, and tempering and stretching. Since normalized pickling, decarburization annealing, etc. are equipped with crescent shears, the main function of the crescent shears is to remove edge defects, sutures, welds and facilitate the disc to cut into the line to ensure the...
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IPC IPC(8): G01N21/892
Inventor 全利军朱清李杰张余海韦节辉李腾
Owner BEIJING SHOUGANG AUTOMATION INFORMATION TECH