Mobile on-line casting blank length measuring device and measuring method thereof

Abstract

The invention discloses a mobile on-line casting blank length measuring device which comprises an upper portion steel pipe, a lower portion steel pipe, supports, pulleys, a steel plate ruler, verniers and casing pipes. The two ends of the upper portion steel pipe and the two ends of the lower portion steel pipe are fixed on the two supports respectively. The upper portion steel pipe and the lower portion steel pipe are arranged in parallel, and the upper portion steel pipe is located on the upper portion of the lower portion steel pipe. The steel plate ruler is fixed on the lower portion of the lower portion steel pipe, and scales are arranged on the steel plate ruler. The pulleys are arranged at the bottoms of the supports. The two casing pipes are arranged on the upper portion steel pipes, and the two verniers are fixed on the two casing pipes respectively. The invention further discloses a measuring method of the mobile on-line casing blank length measuring device. According to the mobile on-line casting blank length measuring device and the measuring method of the mobile on-line casting blank length measuring device, the actual length of casting blank can be fed back in time, the precision of a cutting system is corrected according to the specific length which is fed back, the cutting errors of the on-line casting blank are reduced, the sizing qualification rate of the casting blank is ensured, and therefore the yield of the casting blank is improved.

Description

technical field [0001] The invention relates to a measurement technology, in particular to a mobile on-line slab length measurement device and a measurement method thereof. Background technique [0002] In the production of wide and thick slabs, the slab produced by the continuous casting machine must be cut into a slab with a corresponding length according to the plan by a flame cutting machine, and the slab will be used as the slab for the next rolling process For rolling, the cutting accuracy of the slab will directly affect the yield of the entire production line. The judgment and tracking of the billet length by the billet cutting machine system is generally calculated by the encoder that comes with the roller table. However, in the actual operation process, when the encoder fails, the roller table slips, the billet is skewed, the When the slab travels out of sync and the cutting slit of the cutting gun nozzle is unstable, etc., there will be large or small errors in t...

AI Technical Summary

Problems solved by technology

[0004] 1. The temperature of the online red-hot billet is about 900°C, the heat radiation is strong, and the labor intensity is high when the personnel are close to the operation, and continuous multi-block measurement cannot be performed;

[0005] 2. Due to the high temperature roasting, the operator moves quickly when measuring and drawing lines, and the stay time is short, which cannot guarantee the alignment accuracy of the steel pipe and the billet and the accuracy of drawing lines, and it is easy to produce measurement errors;

[0006] 3. When measuring a long billet, the span of the steel pipe is large, which is prone to deflection and deformation, which will also cause measurement errors. At the same time, the steel pipe that is too long has a large weight and is not easy to operate manually

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