Automatic constant-pressure control device used for centralized supply in process of spraying optical cable grease

Abstract

An automatic constant-pressure control device used for centralized supply in the process of spraying optical cable grease comprises a first-stage filter which is connected with a sprayed grease packaging barrel, the first-stage filter is connected with a grease inlet pump, the grease inlet pump is connected with a second-stage filter connected with a pressure control switch, the second-stage filter is connected with the grease inlet pump which is connected with a grease inlet pump control frequency converter, the second-stage filter is connected with a grease storage tank which is connected with a main pressure pump and an auxiliary pressure pump, the grease storage tank is connected with an electric control system through a weighing sensor and a proximity switch, pressure transmitters are connected with the grease storage tank through the main pressure pump and the auxiliary pressure pump, the main pressure pump and the auxiliary pressure pump are connected with the pressure transmitters through frequency converters, the electric control system is connected with the main pressure pump and the auxiliary pressure pump through the frequency converters, a pressure gauge is connected with the grease storage tank through a grease return detection pressure gauge, and the pressure gauge is connected with spraying guns from the first spraying gun to the twentieth spraying gun. The constant-pressure control technology is firstly introduced into the process of spraying the optical cable grease, and while pressure constancy of the sprayed grease is ensured, constant-pressure centralized supply for a large-scale production line is achieved.

Description

technical field [0001] The invention relates to an automatic control device for spraying ointment pressure during the production process of optical cable sheaths. Connect the ointment spraying pipelines of multiple production lines together, and use this control system to supply the production lines with constant pressure spraying ointment. Background technique [0002] During the production process of the outer sheath of the optical cable, an appropriate amount of ointment is sprayed on the overlapping area of ​​the steel-aluminum tape armor to eliminate the gap at the overlap, so as to achieve uniform and reliable filling of the ointment and achieve a water-blocking effect. The traditional oil injection device uses compressed air to drive the diaphragm pump to inject into the modified cylinder, and then the compressed air acts on the piston to move in reverse, and the ointment is pressed into the spray gun to complete the spraying. When the compressed air acts in reverse,...

AI Technical Summary

Problems solved by technology

When the compressed air acts in reverse, it is affected by the viscosity of the ointment. When the diaphragm pump injects the ointment into the cylinder, it must overcome the reaction force of the compressed air. When the diaphragm pump increases the working pressure, the oil pressure in the pipeline will be unstable and the spraying amount will be uniform. sex not guaranteed

There is no filter device for the ointment, and impurities are easy to block the spray gun

The working pressure of the diaphragm pump is increased, and it is prone to failure. The damage of the pneumatic diaphragm will easily cause air to be mixed in the oil circuit system, resulting in interruption of fuel injection, and 100% coating cannot be guaranteed.

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