Light curtain recognizing and painting machine and painting method thereof

Abstract

The invention discloses a light curtain recognizing and painting machine and a planting method thereof, and belongs to the field of automatic spray coating. The device comprises a light curtain detecting device, a PLC, a spray coating mechanism, a transmission mechanism and a coded disc, wherein the light curtain detecting device comprises an emitter which is mounted above the transmission mechanism, and a receiver which is mounted below the transmission mechanism; the receiver and the emitter are positioned at the upstream of the transmission mechanism; the spray coating mechanism is mounted above the transmission mechanism and located at the downstream of the transmission mechanism; the coded disc is mounted on the transmission mechanism; the emitter, the receiver, the spray coating mechanism and the coded disc are correspondingly electrically connected to the PLC. According to the light curtain recognizing and painting method, the plane appearance data of a workpiece are obtained through the light curtain detecting device and the coded disc and are transmitted into the PLC to be handled; the spray coating mechanism is controlled by the PLC to accurately spray and coat the workpiece, thus realizing the accurate spraying coating of the workpiece; the painting efficiency is increased; the paint waste is decreased; and the cost can be greatly saved.

Description

technical field [0001] The invention relates to the field of automatic spraying, in particular to a light curtain identification spraying machine equipment and a painting method thereof. Background technique [0002] Manual spraying has high labor costs, and paint will also affect people's personal health. The prevalence of occupational diseases is high and there are certain requirements for the spraying techniques of workers. In addition to being efficient and environmentally friendly, the automated intelligent paint spraying machine can also save labor costs and protect the health of workers. [0003] However, although the existing automatic paint spraying machines can solve the problems of high labor costs and paint hazards to human health, there are problems of wasting paint or low adaptability. [0004] There are two main types of existing automatic paint spraying machines: one is full-scale spraying, regardless of the shape of the workpiece, when spraying, all the spr...

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Problems solved by technology

[0003] However, although the existing automated paint spraying machines can solve the problems of high labor costs and paint hazards to human health, there are problems of wasting paint or low adaptability

[0004] There are two main types of existing automatic paint spraying machines: one is full-scale spraying, regardless of the shape of the workpiece, when spraying, all the spray guns are turned on, and the position of the workpiece and the gap are sprayed. This method seriously wastes paint and is not economical. It is not environmentally friendly; the other is to pre-set the shape of the workpiece through programming, and spray the incoming workpiece. This method can avoid waste caused by unnecessary spraying. However, it is very troublesome to preset the data of a workpiece. After the workpiece must be reprogrammed, at the same time, the requirements for the conveying position of the workpiece are very high, and the adaptability is low

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