Automated Plastic Spraying And Powder Spraying Equipment

Qingguo Intelligent is automated plastic spraying and powder spraying equipment manufacturer and supplier in China who can wholesale automated plastic spraying and powder spraying equipment. Automated plastic spraying and powder spraying equipment, Automated spraying equipment is an automated system used for powder spraying on the surface of workpieces, mainly applied in industries such as metal surface treatment, furniture, automotive parts, and electrical appliances. The following are its main components and related characteristics:

Powder spraying room

Function: It is the main place for powder electrostatic coating, providing a relatively enclosed and clean space for spraying operations, ensuring that the powder can be evenly sprayed on the workpiece, while preventing the powder from diffusing into the surrounding environment.

Requirement: Maintain smooth air flow, control the indoor dust content below the explosive limit (generally set at 10g/m ³), and facilitate cleaning to change the powder color. There should also be sufficient light indoors to facilitate coating work.

High voltage electrostatic generator

Principle: Provide high voltage static electricity to the electrostatic spray gun, causing the powder coating to form charged particles at the head of the spray gun. The workpiece is grounded to form a positive electrode, and under the action of an electric field, charged powder coating particles are adsorbed onto the surface of the workpiece.

Importance: Its performance directly affects the adsorption effect of the powder and the quality of the coating. A stable high-voltage electrostatic output can ensure that the powder adheres uniformly and firmly to the workpiece.

Electrostatic spray gun

Classification: According to usage, it can be divided into handheld powder spray guns, fixed automatic powder spray guns, disc spray guns, etc; Divided into internal charged guns and external charged guns according to the form of charging; According to their diffusion mechanism, they can be divided into conflict guns, rebound guns, secondary air inlet guns, centrifugal cup guns, etc.

Function: To evenly spray powder coating onto the surface of the workpiece, the form of the charged mechanism is crucial for improving spraying efficiency. At present, corona guns account for a large proportion in the market, with excellent stability, powder loading rate, and powder loading speed.

Powder supply system

Composition: It consists of an air compressor, oil-water separator, air dryer, regulating valve, compressed air pipeline, electromagnetic control valve, powder supplier, powder conveying pipeline, etc.

Function: Transport the coated powder material continuously and evenly from the powder container to the powder gun for spraying. There are various forms of powder feeders, including pressure vessel type, screw or rotary mechanical conveying type, Wen's air suction type, etc.

Powder recycling device

Wet recycling: The airflow containing powder is filtered through a liquid container to achieve purification, and the powder containing liquid is dried before being reused.

Dry recycling: The powder particles are collected in the powder airflow discharged from the powder spraying room. Common dry recycling methods include gravity settling, inertial separation, cyclone separation, sintering plate separation, etc. In practical production, multi-stage recycling devices are often used to achieve better separation effects.

Workpiece rotation mechanism: For some complex shaped workpieces, it is necessary to use a rotation mechanism to enable the workpiece to receive powder spraying in all directions during the spraying process, ensuring the uniformity of the coating.

Electronic control system: controls and coordinates various parts of the entire automated spraying equipment, such as controlling the spraying parameters of the spray gun, the operating speed of the conveyor chain, the temperature and time of the oven, etc.

Oven: The sprayed workpiece needs to be heated in the oven to melt, level, and solidify the powder coating, forming a hard coating film.

Automated plastic spraying and powder spraying equipment has the advantages of high coating utilization rate, good coating quality, high production efficiency, and adaptability to various workpiece materials. However, in the use of automated spraying equipment, strict control and adjustment of coatings, workpieces, environment, and other aspects are necessary to ensure the normal operation of the equipment and the quality of the coating.