Online replacement method for connecting shaft of glass production calender

Abstract

The invention provides an online replacement method for a connecting shaft of a calender for glass production, which is applied to the technical field of calenders for glass production lines. The method comprises the following steps: slowly reducing the roller speed of an upper roller and a lower roller of the calender to 2.0-3.0 m / min; the actual thickness of the glass plate surface is increased to the machine changing thickness; after the joint of the damaged cardan shaft and the upper roller is detached, the upper roller motor is shut down, and the damaged cardan shaft is detached; after a new joint of the cardan shaft and the upper roller motor is installed, the upper roller motor is restarted; after the joint of the upper roller and the new cardan shaft is installed, the roller speed of the upper roller and the lower roller of the calender is slowly increased, and meanwhile the thickness of the glass plate surface is slowly reduced to the set thickness of the processed glass plate surface. According to the online replacement method for the connecting shaft of the glass production calender, the steps are simple, online replacement of the connecting shaft is conveniently and rapidly completed, the labor intensity of field personnel is reduced, the machine replacement loss is reduced, meanwhile, the online replacement method is suitable for calenders of different occasions and models, and universality is high.

Description

technical field [0001] The invention belongs to the technical field of glass production line calenders, and more particularly relates to an online replacement method for a connecting shaft of a glass production calender. Background technique [0002] The glass calender is the key forming equipment of the patterned glass production line. It is installed in the production line after the furnace and before the annealing kiln. The glass surface produces a specific pattern. It can reduce the reflection of glass light and improve the transmittance, and can also be used as architectural decoration. As the thickness of the glass gradually becomes thinner, the production load of the calender gradually increases, and the failure rate of the cardan shaft and the motor increases significantly. After the implementation of this project, the motor and universal joint of the calender can be replaced without stopping, thereby reducing the number of replacements and improving the output of ...

AI Technical Summary

Problems solved by technology

The calender in the prior art cannot be used due to damage to the cardan shaft or the motor, resulting in defective products such as roll marks on the plate surface and color difference lines, and has to be replaced.

There are deficiencies in the replacement in the prior art: (1) The melting, forming, and waste heat power generation processes will fluctuate greatly during the machine change, and the time will be longer, and the melting, forming, waste heat power generation process, and yield will return to before the machine change It takes about 2-3 days, about 1 day, about 0.5 days, and about 7 days respectively, which has a great impact on production, and at the same time, the reduction in yield also lowers the competitive advantage in the industry; Exposure to a high temperature environment from a distance, although there are labor protection equipment protection, but people operating under high temperature conditions for a long time may easily cause heatstroke and other physical discomfort reactions, which may cause death in severe cases

(3) Machine replacement often requires the cooperation of melting, forming, cold end, waste heat power generation, and installation shift, and there are many on-site operators for forming and installing, about 30 people, the labor cost is relatively high, and the labor intensity is high and easy cause loss of personnel

(4) There is a large flow of personnel at the replacement site, and there are many potential safety hazards on site

(5) When changing the machine, it needs to be replaced with bricks, and the recovery of the yield rate is slow, and the output loss is large. According to the statistical data, the cost of changing the machine once is about 140,000 yuan