Coiled steel strip weight measuring and calculating method

Abstract

The invention relates to a coiled steel strip weight measuring and calculating method. With the method adopted, the weight of steel strips on a keel uncoiler can be calculated more accurately without dissembling the steel strips required. The method includes the following steps that: the width L1 of coiled steel strips is measured, and the specifications of the steel strips are determined; (2) the thickness deltaD of the coiled steel strips and the radius D1/2 of coiled steel strip holes are measured; (3) the weight G1 of the coiled steel strips is obtained according to G1=L1*PI*7.85*zeta*(D1*deltaD+deltaD2); (4) G1=A*(D1*deltaD+D2)=A*deltaD2+A*D1*deltaD is obtained, and a function of a variable G1 of steel strips of each specification relative to deltaD is determined; (5) curves indicating a situation that the weight of the steel strips of each product specification changes with the radius of the steel strips are drawn, and data in a first quadrant area are selected, and deltaD is marked on an X axis, and G1 is marked on a Y axis, and vertical lines are drawn according to different deltaD so as to intersect with the curves, parallel lines of the X axis, which pass through intersection points of the vertical lines and the curves, are drawn so as to intersect with the Y axis, and the intersection points of the parallel lines of the X axis and the Y axis are the weight of the coiled steep strips.

Description

technical field [0001] The invention relates to the technical field of keel production, in particular to a method for measuring and calculating the weight of a coiled steel strip, which is mainly used for measuring and calculating the weight of the steel strip on a keel uncoiler. Background technique [0002] In the production process of the light steel keel, the steel strip is uncoiled by the uncoiler, and enters the forming machine for cold bending to form the keel. Under the action of gravity, it slides down to the belt conveyor, and then the keel slides from the belt conveyor to the receiving frame, and after packaging, the production process of the keel is completed. When the shift is about to be changed, the steel belt may not be used up. For statistical purposes, the weight data of the steel belt used in each shift is all estimated manually, and sometimes the data deviates greatly. If the steel belt is unloaded to bear the load, it will cause waste again. In additio...

AI Technical Summary

Problems solved by technology

When the shift is about to be changed, the steel belt may not be used up. For statistical purposes, the weight data of the steel belt used in each shift is all estimated manually, and sometimes the data deviates greatly

If the steel belt is unloaded to bear the load, it will cause waste

In addition, the steel strip unloaded from the equipment and the inconvenient load-bearing steel strip coil are mostly calculated manually.

Therefore, the data deviation is relatively large

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