Single flowmeter type digital spraying system for robot

Abstract

A single flowmeter type digital spraying system for a robot is composed of a feed pipeline, a feed back pipeline, an air pipeline and a control part, wherein the feed pipeline conveys a coating to the feed inlet of an automatic spray gun, and a digital flowmeter and a pneumatic proportional valve are connected in series in the pipeline; the feed back pipeline conveys the coating to a coating container from the discharge hole of the automatic spray gun, thereby realizing circulating feed; the air pipeline provides compressed air for various pneumatic elements and an electrical proportional valve is connected in series to the pipeline; and the control part is composed of an upper computer and a PLC (Programmable Logic Controller) controller, which are connected to the electrical proportional valve and the flowmeter, respectively. The system is capable of realizing real-time flow detection and closed-loop control of the automatic spray gun in a circulating feed mode, and also capable of remotely adjusting a coating pump, a stirrer and an automatic spray gun switch as well as atomizing air and fan width air; therefore, the system is especially suitable for the situations in which an inside-gun circulating mode is used for feeding, but the flow cannot be manually detected conveniently or flow decay is easy to occur.

Description

technical field [0001] The invention relates to a single-flow meter type digital spraying system for a robot, belonging to the technical field of robot spraying equipment. Background technique [0002] At present, industrial products have higher and higher requirements for coating surface quality and paint film thickness precision sprayed by robots. The ordinary constant pressure feeding system can no longer meet the requirements of spraying robots for flow control accuracy due to the lack of flow monitoring means. Therefore, there is an urgent need for a feeding system that can detect and adjust the flow of the spray gun in real time. The existing technologies for detecting and adjusting the flow of the spray gun of the spraying robot basically include the following three . [0003] The first, manual method. The detection method is: open the feeding system of the spraying robot, adjust the pressure regulating valve to a specified pressure value, then close the atomizing a...

AI Technical Summary

Problems solved by technology

[0008] The problem to be solved by the present invention is to overcome the defects existing in the spray gun flow detection method in the existing spraying system, and to provide a robot with a simple structure, accurate measurement, and low cost for the circulating feeding type spraying robot spraying system. Metering digital spraying system makes it suitable for occasions where it is not convenient to manually detect and adjust the flow rate and the circulation feeding mode must be used

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