Accurate and automatic pressurizing system for TFT knife

Abstract

The invention discloses an accurate automatic pressurizing system of a TFT cutting knife, which comprises an automatic pressurizing system equipment unit, a cutting knife automatic pressurizing gas circuit unit and an electrical control system unit, when the accurate automatic pressurizing system is used, a cutting cylinder is connected with a cutting arm, and when substrate glass is cut, the cutting cylinder acts to drive the cutting arm to descend; a cutting knife wheel directly installed on the cutting knife head makes contact with a substrate glass, in the walking process of the knife head, the cutting knife wheel cuts the surface of the substrate glass, the pressure of the pressurizing air cylinder is adjusted, the pressure influences the acting force of the cutting knife wheel on glass cutting, and on the basis of original equipment, the cutter head mechanism can be directly replaced, the cutter head mechanism can be transformed and upgraded and transformed into an accurate automatic pressurizing function of the cutter, the shutdown frequency of cutter wheel replacement can be reduced, the equipment utilization rate can be increased, the service life of the cutter wheel can be prolonged, and the production cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of TFT glass manufacturing equipment, and in particular relates to a precise automatic pressurization system for a TFT cutting knife. Background technique [0002] During the cutting process of TFT glass, because the cutting ability of the cutting wheel decreases after being used for a period of time, there will be discontinuous deep scribing and cracking, chipping, and fragmentation when breaking; in addition, for different thicknesses, the cutting pressure changes, The cutting depth is different. Usually, it is necessary to replace the cutting wheel to eliminate it. The higher the cutting quality requirements, the replacement frequency will be obvious. Usually, the length of the replacement cutting glass is between 2500m and 3000m, and there will be serious deterioration. . [0003] The existing technology has the following problems: With the upgrade of the glass substrate specification, the thickness of ...

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Problems solved by technology

[0002] During the cutting process of TFT glass, because the cutting ability of the cutting wheel decreases after being used for a period of time, there will be discontinuous deep scribing and cracking, chipping, and fragmentation when breaking; in addition, for different thicknesses, the cutting pressure changes, The cutting depth is different. Usually, it is necessary to replace the cutting wheel to eliminate it. The higher the cutting quality requirements, the replacement frequency will be obvious. Usually, the length of the replacement cutting glass is between 2500m and 3000m, and there will be serious deterioration.

[0003] The existing technology has the following problems: With the upgrade of the glass substrate specification, the thickness of the TFT glass has changed from 0.7mm to the current 0.4mm. The existing technology includes: 1. Manually replace the cutting wheel; 3. There have been manual pressurization experiments in the industry, because the pressurization parameters and frequency management cannot be correct, and there is no effect after improvement. 4. Different manufacturers have different deterioration trends of cutter wheels, and cannot be quantified

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