Conductivity mechanism for self-rotating welding wheel of end-turning resistance welding machine

Abstract

The invention relates to a conductivity mechanism for a self-rotating welding wheel of an end-turning resistance welding machine. The conductivity mechanism is mainly characterized in that through fitbetween a circular arc conductive tile and the surface of the outer circle of the welding wheel, an electrode plate is connected to the welding wheel, and the welding wheel is in friction fit with the conductive tile in the rotating process. The welding wheel is installed on a welding wheel shaft as a whole through a bearing, and the action of shaft-fixed welding wheel rotation can be achieved. The conductivity mechanism is ingenious in structure, the conductive tile is good in conductivity, the portion between an inner core of the welding wheel and the outer edge of the welding wheel is subjected to insulation and heat insulation through an insulating sleeve and an insulating annular plate, the problem of heating and wear of the welding wheel shaft is avoided, heat conduction efficiencyis low, the heating problem of the welding wheel shaft is solved, therefore the service life of the welding wheel is greatly prolonged, and welding quality of a product is greatly improved.

Description

technical field [0001] The invention relates to professional production equipment for steel skeleton polyethylene plastic pipes, in particular to a self-rotating welding wheel conduction mechanism of a resistance welding machine. Background technique [0002] Steel skeleton polyethylene plastic composite pipe is a pressure-bearing pipe with advanced production technology, excellent performance and wide application. It has the corrosion resistance of ordinary plastic pipes and the pressure resistance of metal pipes. It has excellent comprehensive performance that cannot be surpassed by plastic pipes or metal pipes. At present, only a small number of domestic manufacturers have the ability to mass produce. In the production process of this product, a steel wire mesh skeleton is required. The warp thread moves axially at a uniform speed in the steel skeleton, and the weft thread is continuously wound. The intersection of the longitude and latitude threads is welded and fixed by...

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