Cutting method and cutting machine for thin flat glass

Abstract

The invention relates to the field of cutting technology, and provides a cutting method and a cutting machine of sheet glass. The method comprises the following steps of: overlapping and bonding multiple pieces of sheet glass together; fixing the bonded sheet glass; and cutting with water-sand mixed jet flow. The cutting machine comprises a fixture platform, a water supply device, a sand supply device, a water-sand jet device, a transmission device and a controller, wherein the fixture platform is used for placing the sheet glass; the water-sand jet device is connected with the water supply device and the sand supply device and can eject the mixture of water and sand onto the sheet glass for cutting; the transmission device drives the water-sand jet device to move horizontally; and the controller is connected with the water-sand jet device and the transmission device. In the invention, multiple pieces of sheet glass are overlapped and bonded together and cut at a time, and thus the production efficiency is greatly improved; and moreover, the cutting force of water-sand jet flow is strong, the separation is not needed after the cutting, artificial operation loss is reduced, and the yield is increased.

Description

technical field [0001] The invention relates to the technical field of cutting, and more specifically relates to a cutting method and a cutting machine for sheet glass (0.33mm-1.5mm) in a liquid crystal display device. Background technique [0002] At present, in the liquid crystal display industry, when cutting thin flat glass (0.33mm~1.5mm), glass cutters such as diamond cutters and diamond cutter heads are generally used for cutting. Its method is as figure 1 As shown, a sheet of flat glass 100' is placed on a cutting platform 200' and cut with a glass knife 300'. With this method, only one piece can be cut at a time, and the cutting efficiency is low; and when cutting special-shaped or curved surfaces, the cutter head of the glass knife 300' is inconvenient to rotate, and the bending angle is relatively large, so it cannot cut large and multiple bends well. corner products. And after this cutting, the edge waste still stays on the finished product, and it is easy to p...

AI Technical Summary

Problems solved by technology

With this method, only one piece can be cut at a time, and the cutting efficiency is low; and when cutting special-shaped or curved surfaces, the cutter head of the glass knife 300' is inconvenient to rotate, and the bending angle is relatively large, so it cannot cut large and multiple bends well. corner product

And after this kind of cutting, the edge waste remains on the finished product, and it is easy to produce fragments and cracks in the process of breaking the pieces to remove the edge waste

Moreover, thin flat glass itself is a fragile product. Using traditional cutting methods, the efficiency and yield rate of mass production are low

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