Rolled glass edge adjusting device

Abstract

The invention provides a rolled glass edge adjusting device which is characterized in that at least one adjusting wheel is arranged on each of two sides of the surface of rolled glass, the adjusting wheels are in contact with the surface of a glass plate, and the rotating direction of the adjusting wheels is opposite to the moving direction of the rolled glass; the rotating speed of the adjusting wheel is larger than the moving speed of the rolled glass, and the adjusting wheel generates outward driving force and driving force in the moving direction of the rolled glass on the surface of the rolled glass. The rolled glass edge adjusting device provided by the invention has the advantages that the adjusting wheels reversely rotate on the two sides of the surface of the rolled glass, so that the rolled glass is prevented from shrinking towards the middle, the edge area and the middle area of the rolled glass are kept to be the same in thickness, meanwhile, the edge of the rolled glass does not shrink, a larger net plate width can be obtained, the yield of rolled glass production is improved, the adjusting wheels provide outward and forward driving force for the rolled glass, and the edges can be prevented from shrinking and wrinkling.

Description

technical field [0001] The invention relates to the technical field of rolling glass production, in particular to a rolling glass edge adjusting device. Background technique [0002] During the forming process of photovoltaic calendered glass, the glass is quenched and formed by a calender under high pressure to form a glass plate. The temperature of the glass plate formed from the calender is as high as 700 degrees Celsius, and then it is transported by the contact roller and the transition roller, and then sent to the annealing kiln for annealing and cooling. Rolled glass has relatively high requirements on thickness. For example, the invention patent application with publication number CN110040939A and the utility model patent application with publication number CN202390307U are all technical solutions for glass thickness control. [0003] In the section from the calender to the annealing furnace, the speed of the contact roll and the transition roll increases step by ste...

AI Technical Summary

Problems solved by technology

[0003] In the section from the calender to the annealing furnace, the speed of the contact roll and the transition roll increases step by step relative to the linear speed of the calender roll, forming a speed difference, which further thins the glass plate to the required thickness. During this process, the glass plate There is shrinkage at the edge of the width. Usually, the shrinkage rate in the width direction of the glass plate is about 3%-8%. The shrinkage of the glass plate will cause a large thickness difference between the edge thickness and the middle thickness of the glass plate. Since the edge thickness exceeds the required size, As a result, the edge trimming width of the glass is large, and the original glass plate of 2.4m can only obtain a net plate width of 2.0-2.1m, and the glass yield remains at a low level, and the glass plate with thick edges and thin middle is easy to explode during the annealing stage

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