Device and method for controlling forming thickness of glass substrate by overflow method

Abstract

The invention provides adevice and method for controlling the forming thickness of a glass substrate by an overflow method. A soaking box body and a U-shaped cooling air pipe capable of independently controlling the air speed are arranged below an overflow brick tip, and the soaking box body and the U-shaped cooling air pipe are connected to the outer walls of the two sides of the lower end of a furnace body through threads and nuts correspondingly; aiming at the condition that the thicknesses of the glass bodies in the same plane are not consistent, independent control sliding of the soaking box body and the U-shaped cooling air pipe is realized by rotating threads and nuts, so that the distance between the soaking box body and the U-shaped cooling air pipe and the glass bodies is finely and regionally adjusted, rapid cooling of corresponding positions is realized, the viscosity of the glass is improved, and the flowing performance is weakened; and the goal of unifying the thickness is realized, meanwhile, the problems of low cooling efficiency, slow reaction and poor controllability in the prior art are solved, and the process margin of thickness adjustment is expanded.

Description

technical field [0001] The invention relates to a substrate glass manufacturing equipment, belongs to the category of special equipment, and is an invention patent, in particular to a device and method for controlling the thickness of a glass substrate formed by an overflow method. Background technique [0002] In the overflow down-draw substrate glass production process, when the molten glass flows down from the tip of the overflow brick and enters the forming area, in order to ensure that the glass plate is rapidly cooled and formed, and enters the stress-strain area with a uniform thickness, a glass plate is installed in this area. Plate thickness control device. [0003] The general control and adjustment method is to adjust by cooling the cooling air in the soaking box. However, with the continuous development of display technology, high-definition, thinner, and larger sizes are inevitable development trends, which put forward higher requirements for the manufacture of...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of uneven thickness in the process of glass plate processing in the prior art, the present invention provides a device and method for controlling the thickness of a glass substrate formed by an overflow method

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