A kind of grinding device for ductile iron pipe socket

Abstract

The invention discloses a socket polishing device for a ductile cast iron pipe, and relates to the technical field of ductile cast iron pipe polishing machine. The device comprises a frame, a stirring and stopping device, a first photoelectric switch, a second photoelectric switch, non-driving rails, a socket polishing device body, an automatic tube distributing device and a riding wheel device. The socket polishing device body comprises a main polishing device, two auxiliary polishing device, adjusting screws, adjusting baseplates, adjusting springs, movable supporting seats and supporting hinge supporting seats. The automatic tube distributing device is a composite mechanism, and comprises a first link, a movable link, a second link, a reset spring and a positioning supporting block. The riding wheel device comprises driving riding wheels, five driven riding wheels, a driving motor and positioning stopping wheels, and the driven riding wheels and the driving riding wheels form three sets of riding wheel groups. By the aid of the socket polishing device, automatic distributing and polishing of two sets of ductile cast iron pipes can be implemented, labor intensity is reduced greatly, and producing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of a ductile iron pipe grinding machine. Background technique [0002] At present, after the ductile iron pipes at home and abroad are annealed in the annealing furnace, the spigot often has oxide scales, and the centrifugally cast ductile iron pipes have a large outer diameter of the spigot. Because the spigot and the socket are of matching size, the outer diameter of the spigot is too large. High-quality ductile iron pipes are often directly judged to be scrapped, resulting in waste. Moreover, the oxide skin of the socket affects the zinc spraying in the next process and affects the quality of zinc spraying. For ductile iron pipes with oxide scales, the adhesion of the sprayed zinc layer is low after installation, and the pipes are prone to water seepage, which directly affects the quality of the pipes. At present, the oxide skin of the socket at home and abroad is often polished with a steel wire brush. ...

AI Technical Summary

Problems solved by technology

[0002] At present, after the ductile iron pipes at home and abroad are annealed in the annealing furnace, the spigot often has oxide scales, and the centrifugally cast ductile iron pipes have a large outer diameter of the spigot. Because the spigot and the socket are of matching size, the outer diameter of the spigot is too large. Ductile iron pipes are often directly rejected, resulting in waste

Moreover, the oxide skin of the socket affects the zinc spraying in the next process and affects the quality of zinc spraying. For ductile iron pipes with oxide scales, the adhesion of the sprayed zinc layer is low after installation, and the pipes are prone to water seepage, which directly affects the quality of the pipes.

At present, the oxide skin of the socket at home and abroad is often polished with a wire brush. The oxide skin cannot be polished off, and the labor intensity is high. For the pipe with a large outer diameter of the socket, it will be directly rejected, resulting in waste and increasing the production cost.

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