At present, many companies are still using manual spraying operations. With the upgrading of industrial automation, spraying operations are gradually becoming automated, and the types of automatic spraying equipment are also diversified. Many products of spraying workpiece are metal processing parts, such as speaker nets, perforated nets, sound box iron nets, etc. So how to design an automatic spraying production line to be reasonable?

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When designing the spraying workshop, the entire coating operation area is designed to be fully enclosed, the overall equipment is isolated from the outside world, and the air supply in the spraying area is purified to ensure that the air cleanliness is within 100,000. Manually assemble the workpiece on the secondary jig, and then insert it with the primary jig on the conveyor chain. The characteristics of the jig: its rotation is flexible and the insertion is convenient, which is the leading technology in this industry.

The hardware processing parts are manually/automatically removed static electricity and dust removal device to eliminate the static charge and dust remaining on the workpiece. In order to completely remove the dust on each part of each workpiece, the conveyor chain is equipped with a rotation device at this station. Therefore, the automatic electrostatic precipitator of the workpiece is carried out in rotation, and the dedusting effect is good. The electrostatic precipitator is an imported product. Features: good coating and control of the shortcomings of each link.

The hardware accessories enter the spraying room after the dust-removed workpieces. The spraying room is the most important working area of ​​the automatic spraying line. The fresh air sent by the air supply device is filtered again by the 99.99% filter before entering the spraying The cleanliness of the room is within 100,000. The exhaust system is exhausted from the exhaust gas treatment exhaust fan of the water curtain spray cabinet to the roof. More than 90% of the paint mist contained in the exhaust gas passes through the water curtain and Treated by vortex double treatment. The air flow velocity in the spraying room is 0.4~0.6m/s, and it is safe, non-toxic, and free of vortex airflow and secondary pollution; the spray room adopts a large circulation method;

The workpiece after automatic spraying enters the leveling section immediately. The leveling section is equipped with air supply and exhaust devices to ensure that the paint concentration in the leveling room does not exceed the explosion limit and ensure safety. After the leveled workpiece enters the drying furnace, it is cured under heating. There are several air fans on the top of the curing furnace. The impeller stirs the hot air of the furnace to make the workpiece heat evenly. The inner tank is made of stainless steel plate, which is not rusty and suitable. It is frequently maintained and cleaned, and the control screen is equipped with an instrument that automatically displays and records the temperature of each measuring point in the furnace, which records truthfully and intuitively, which is convenient for observation and control. After baking, the workpiece enters the cooling section and is cooled by fresh air. To ensure the spraying quality of the next process, it is also equipped with an exhaust device to exhaust the hot air in a timely manner.

The conveying equipment used in this hardware automatic spraying production line scheme is a ground chain conveyor, which walks smoothly, without slag, and does not require lubrication. It is supplemented by frequency conversion speed control and tensioning devices, and the entire spraying line has smooth logistics , Each work station is simple to get on and off the workpiece, easy to check, high automation, save a lot of labor, and the spraying line runs smoothly; it adopts man-machine interface control, and each part is controlled by points.