Double-station cast tube surface zinc spraying machine

Abstract

The invention relates to a double-station cast tube surface zinc spraying machine. The machine is characterized in that a zinc spraying trolley is arranged on a rack and transversely moves along the rack, wherein a wire feeding adjusting device is arranged on the lower surface of the zinc spraying trolley and connected with the zinc spraying trolley, and spray gun assemblies for spraying zinc on the surface of a cast pipe are arranged on two sides of the wire feeding adjusting device; two pushing and rotating mechanism sets are arranged at the lower part of the rack and are used for clamping two casting pipes and driving the casting pipes to rotate; the wire feeding adjusting device is driven by the zinc spraying trolley to transversely move along the axial direction of the casting pipes in the rotating process of the casting pipes; the spray gun assemblies are capable of spraying zinc on the surfaces of the casting pipes in the transversely moving process; a cast tube feeding and discharging mechanism is arranged at the lower part of the rack and used for feeding the cast tubes to a pushing and rotating mechanism and taking the cast tubes subjected to zinc spraying down from the pushing and rotating mechanism; and a dust removal device is arranged at the upper part of the pushing and rotating mechanism and used for treating zinc mist generated in the zinc spraying processing process. The double-station zinc spraying machine is capable of spraying zinc to two casting tubes at one time, and has the characteristics of wide application range, stable operation, simple operationand the like.

Description

Technical field [0001] The invention relates to the technical field of zinc spraying equipment for cast pipes, in particular to a double-station cast pipe surface zinc spraying machine. Background technique [0002] At present, in order to increase the corrosion resistance of the cast iron pipe surface, a zinc sprayer is usually used to spray zinc on the cast iron pipe surface and then apply asphalt. Zinc coating has two functions: one is that the electrochemical potential of zinc is lower than that of iron, and the reaction of zinc protects iron from corrosion; the other is that when zinc is corroded by salt solution, insoluble compounds (zinc phosphate, zinc phosphate, Zinc chloride, zinc sulfate) cover the surface of the pipe to slow down the intrusion of corrosive media. [0003] Most of the traditional zinc spraying machines are single-station zinc spraying machines, which can only spray zinc on one cast pipe at a time, which is inefficient. Therefore, double-station zinc spr...

AI Technical Summary

Problems solved by technology

[0003] Most of the traditional zinc spraying machines are single-station zinc spraying machines, which can only spray zinc on one cast pipe at a time, and the efficiency is low. Therefore, double-station zinc spraying is gradually developed, such as the patent with the authorized announcement number CN201545903U : A double-station zinc spraying machine for ductile iron pipes, but the existing zinc spraying machine also has the following defects: 1. The unreasonable design of the cast pipe loading and unloading mechanism causes the loading and unloading time to be too long, which affects the working efficiency of the zinc spraying machine; 2. The pusher rotating mechanism used to clamp both ends of the cast pipe is prone to radial deviation during the rotation of the cast pipe, resulting in increased wear of the pusher spindle, and the pusher rotation mechanism is prone to failure; 3. It is used to process The zinc mist generated in the process is extracted in time, and the telescopic air duct is stuck during the telescopic movement, etc.

Images