Spray head of steel plate surface-spraying marking device

Abstract

The invention discloses a spray head of a steel plate surface-spraying marking device, which overcomes the defects that the conventional similar spray head cannot effectively prevent ink from becoming dry and hard on a nozzle and is not suitable for steel plate surface-spraying marking operation on a flow production line. The invention adopts the technical scheme that the spray head is characterized by comprising an assembly matrix, a plurality of nozzles, a plurality of electromagnetic needle valves, and a paint liquid passage, an atomized air passage and a cleaning agent passage in the assembly matrix, wherein each nozzle is matched with the corresponding electromagnetic needle valve; a paint liquid passage, an atomized air passages and a cleaning agent passage are formed in the nozzle,the outer port of each passage is centralized on the nozzle, and the inner ports of the passages are connected with the inner ports of the paint liquid passage, the atomized air passage and the cleaning agent passage of the assembly matrix; the needle valves are matched with the outer ports of the paint liquid passages; an electromagnetic coil is connected with a control circuit of the steel plate surface-spraying marking device; and the outer ports of the paint liquid passage, the atomized air passage and the cleaning agent passage of the assembly matrix are connected with a paint liquid source, an atomized air source and a cleaning agent source of the steel plate surface-spraying marking device respectively.

Description

technical field [0001] The invention relates to an industrial liquid spray head, in particular to a spray head specially used for a steel plate surface spray marking device for spraying marks on the steel plate plane when the material steel plate leaves the factory. Background technique [0002] The steel plate produced by the steel mill will be marked with information such as specifications, varieties, and batch numbers on the steel plate plane when it leaves the factory. Utilize such a steel plate surface spray marking device as the applicant's Chinese Patent No. 200920055955.1 to spray on the steel plate plane. Composing information fonts or graphics with paint dots is currently a more advanced marking method. Since the steel surface spray marking is a synchronous operation carried out on the assembly line, the sprayed color paint must be a quick-drying color paint, so the color paint is easy to dry on the nozzle of the steel surface spray marking device, resulting in noz...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects that existing similar nozzles with anti-clogging function cannot effectively prevent the ink from drying out on the nozzle, and are not suitable for spraying marking operations on the steel plate surface on the assembly line, the purpose of the present invention is to provide an improved steel plate The nozzle of the surface spray marking device can overcome the defects of the prior art

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