Annular pressure device capable of being adjusted in sections for large-size substrate glass grinding head

Abstract

The invention relates to an annular sectionalized adjustable pressurizing device for a large-size substrate glass grinding head, which comprises a grinding support plate, a support ring frame is arranged right above the grinding support plate, the support ring frame is fixedly connected with a connecting top frame, and a gas transmission machine is mounted in the center of the lower side of the support ring frame; a plurality of pressure air bag mechanisms which are evenly distributed in an annular array mode are installed between the communicating pipe frame and the grinding supporting plate, the tops of the pressure air bag mechanisms communicate with the communicating pipe frame, and a plurality of supporting telescopic columns which are evenly distributed in an annular array mode are arranged between the supporting ring frame and the grinding supporting plate. A plurality of polishing mechanisms which are uniformly distributed in an annular array are mounted on the lower surface of the grinding supporting plate, and the pressure of the grinding supporting plate on each circle of polishing mechanism is gradually reduced in an annular sectional manner from inside to outside, so that the grinding efficiency of each circle of polishing mechanism on the substrate glass is kept consistent; therefore, the surface flattening effect of the polished surface of the substrate glass is ensured to be optimal.

Description

technical field [0001] The invention relates to the technical field of glass grinding, in particular to an annular segmentally adjustable pressure device for a large-size substrate glass grinding head. Background technique [0002] The surface grinding of glass requires a grinding pad and a grinding liquid to grind the surface of the glass. The surface grinding of large-sized substrate glass usually uses a suspended grinding head above the machine. The grinding disc is attached to the non-working surface of the grinding pad, and the grinding pad faces downward The processing surface of glass, the existing grinding mechanism such as Figure 7 shown. [0003] The patent document with the publication number CN105598830A discloses a glass grinding frame and a glass grinding device, including a grinding frame, a base, and two front baffles for clamping a glass substrate from the front and back, wherein the two front The baffles are respectively arranged on two opposite surfaces ...

AI Technical Summary

Problems solved by technology

[0004] When the existing substrate glass grinding device grinds the substrate glass, the grinding efficiency of the working surface of the grinding pad is different, and the grinding efficiency of the grinding pad increases with the increase of the radius increase, the existing substrate glass grinding device makes the surface flatness of the substrate glass appear uneven from the center to the surroundings when grinding the substrate glass, and the area with the same surface flatness presents a plurality of concentric rings. Some substrate glass grinding devices often paste the grinding pad on the grinding head during the grinding process, so that the grinding pad is subjected to uneven force during the grinding process, and the phenomenon of edge separation is prone to occur, which affects the grinding effect. One scratch and replace the entire grinding pad, resulting in huge waste

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