Counterweight device for calender

Abstract

A counterweight device for a calendar comprises a vertical column vertically arranged on a steel platform girder, wherein a horizontal cantilever beam is arranged at the top end of the vertical column; a contact part between the cantilever beam and the vertical column is a fulcrum; fixed pulleys are arranged at the left end and the right end of the cantilever beam correspondingly; a steel wire rope runs through the fixed pulleys; a counterweight mechanism is arranged at one end of the steel wire rope; the other end of the steel wire rope is connected to a hanging plate; I-steel is arranged onthe hanging plate; the I-steel is connected with an upper calender roll pressure rod; the pressure rod provides a pressing force through the I-steel. Through the steel wire rope and the fixed pulley mechanisms, the downward weight of a counterweight is changed into an upward pull, and the pull is then exerted on the upper calender roll pressure rod by multiple times through a lever principle, so that the downward pressing force of the upper calender roll is finally achieved. The counterweight device has the characteristics of convenience and practicality.

Description

technical field [0001] The invention relates to the technical field of fixtures, in particular to a calender counterweight device. Background technique [0002] At present, among more than a dozen manufacturers of photovoltaic glass rolling in China, most of them follow the original equipment design concept and product specification range for production, and do not add additional auxiliary counterweight systems to produce thin-plate photovoltaic glass products. Individual photovoltaic glass manufacturers The unit also tried to design the transformation of the calender counterweight system, but the transformation structure is complicated and the operation is not flexible, which sometimes affects the normal production of the calendering process, and it is difficult to produce thin-plate photovoltaic glass products below 2.5mm. Therefore, there are still certain technical difficulties in producing qualified products of photovoltaic glass below 2.5mm on the calenders that routin...

AI Technical Summary

Problems solved by technology

[0003] There are disadvantages in the production of thin-plate photovoltaic glass by conventional calenders: ①. The compression mechanism designed by the original calender cannot meet the production of thin-plate photovoltaic glass below 2.5mm

②. The range of the pressure sensor is not enough when producing 2.5mm glass plate, and the jacking force may appear beyond the range

③. When the lever beam of the pressing mechanism produces thin plate glass, because the pressing force exceeds 2 tons, its design bending resistance is too small and it is easy to deform

④. There is no basic pre-tightening force, so the jacking motor may be in operation for a long time, and the motor is installed on the steel platform above the calender. The ambient temperature is high, and it is in operation for a long time, which is easy to burn out the motor

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