On-line measuring method and device of camber of steel plate

Abstract

The invention discloses on-line measuring method and device of a camber of a steel plate. Pulley blocks are respectively arranged at both sides of the steel plate, the two pulley blocks are connected above the steel plate through a steel wire caliper, and a lead block positioned on the other end of the pulley block is suspended on the other end of the steel wire caliper through a steel wire wound on the pulley block; when the on-line measuring device is in use, the steel wire automatically returns to a waiting position through the pulley block under the action of the lead block; if the on-line measuring device needs to be used, a middle fine steel wire is downwards pulled to a working position, the lead block ascends so as to measure the camber of the steel plate, and the middle fine steel returns to the waiting position again under the naturally falling action of the lead block after measurement is finished. The invention can not only reduce the direct action of the lead block on the steel wire, but also reduces the needed force of an operator when the steel sire arrives, is convenient, practical and fast compared with a former mode, realizes the fast on-line measurement of the camber of the steel plate and solves the problem of conflict with production rhythm, thereby effectively serving the production.

Description

technical field [0001] The invention relates to a dimension inspection and measurement method and device on a steel rolling production line, in particular to an on-line measurement method and device for sickle bending of a steel plate. Background technique [0002] Due to the fast production pace of the medium plate factory, and there is currently no online size and shape testing equipment in the finishing area, all rely on subsequent inspection personnel to manually use calipers and tape measures to measure and inspect the steel plate, which is the last pass of the steel plate quality. However, due to the influence of production rhythm and environmental restrictions, there is currently no special device for measuring the camber of the steel plate. It can only rely on the inspectors at both ends of the steel plate to pull the wire, and one person in the middle to measure the size of the camber of the steel plate. In this way, three people are required at the same time. Coope...

AI Technical Summary

Problems solved by technology

[0002] Due to the fast production pace of the medium plate factory, and there is no online size and shape testing equipment in the finishing area, all rely on subsequent inspection personnel to manually use calipers and tape measures to measure and inspect the steel plate, which is the last hurdle for the quality of the steel plate

However, due to the influence of production rhythm and environmental restrictions, there is currently no special device for measuring the camber of the steel plate. It can only rely on the inspectors at both ends of the steel plate to pull the wire, and one person in the middle to measure the size of the camber of the steel plate. In this way, three people are required at the same time. Cooperate, and seriously affect the rhythm of the steel plate off-line, and at the same time cause staff tension, so it is very difficult to measure the sickle curve of the online steel plate piece by piece, and only random inspection can be carried out

[0003] It is necessary to carry out random inspection on the sickle bend in daily life. If there are special requirements for rolling or key orders, it is required to measure the sickle bend of the steel plate piece by piece. For one steel plate, the cotton thread must be lifted up, and the next steel plate is in place before measurement is performed. After the measurement, the thread needs to be taken up, etc. The on-site production rhythm is already very fast, and such complicated work seriously conflicts with the production rhythm.

[0004] The application date is 2006.9.26, the patent number is: 200610116501.1, and the patent name is: "A method for online measurement of slab camber" Chinese patent discloses an online measurement method for slab camber. Measurement, although the measurement is convenient and accurate, but the equipment investment is large, and the measurement equipment needs to be checked and repaired regularly, and the use cost is high

The application date is 2008.8.26, the patent number is: 200810048971.8, and the patent name is: "Automatic detection device for camber of thin plate". The Chinese patent discloses a camber detection device for thin plate. According to the analysis, although the degree of automation is high, there are still problems of large investment in equipment, regular calibration and maintenance of measuring equipment, and high cost of use.

The application date is 2010.3.3, the patent number is: 201020122091.3, and the patent name is: "Measuring device for sickle bending of steel plate". The Chinese patent discloses a measuring device for sickle bending of steel plate. The structure is relatively complicated and the operation is inconvenient.

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