The seven main components of the painting pipeline include: pretreatment equipment, powder spraying system, paint spraying equipment, oven, heat source system, electronic control system, suspension conveyor chain, etc.

Pretreatment equipment

Spray multi-station pretreatment unit is a common surface treatment equipment, its principle is to use mechanical scouring to accelerate chemical reaction to complete deoiling, phosphating, washing and other process. The typical processes of spray pretreatment for steel parts are pre-degreasing, degreasing, water washing, water washing, surface adjustment, phosphating, water washing, water washing and pure water washing. Shot blasting cleaner can also be used for pretreatment, which is suitable for steel parts with simple structure, serious rust, no oil or less oil. And there is no water pollution.

Powder Spraying System

The small cyclone + filter element recovery device in powder spraying is an advanced powder recovery device with fast color change. Imported products are recommended for the key parts of the powder spraying system. All parts of the powder spraying chamber and electromechanical lift are localized.

Painting equipment

For example, oil spray paint room and water curtain paint room are widely used in the surface painting of bicycles, automobile leaf springs and large loaders.

Coating Line for Driving Shaft

Oven drying

The oven is one of the important equipments in the coating production line. Its temperature uniformity is an important index to ensure the quality of the coating. The heating modes of liquid coating line oven are radiation, hot air circulation and radiation + hot air circulation, etc. The coating line of the steam drive shaft can be divided into single room and through type according to the production program, and the equipment forms are straight-through type and bridge type. The hot air circulating oven has good heat preservation, uniform temperature and less heat loss. The temperature difference in the oven is less than (+3oC), which meets the performance index of similar products in advanced countries.

Heat Source System

Hot air circulation is a popular heating method. It uses convective conduction principle to heat the oven to achieve drying and solidification of the workpiece. Heat sources can be selected according to the specific conditions of users: electricity, steam, gas or fuel, etc. The heat source box can be placed at the top, bottom and side of the oven according to the condition of the oven. If the circulating fan producing heat source is a special high temperature resistant fan, it has the advantages of long life, low energy consumption, low noise and small volume.

Electronic Control System

The electric control of painting and painting pipeline has centralized and single control. Centralized control can use programmable logic controller (PLC) to control the main machine, according to the compiled control procedures for automatic control, data acquisition and monitoring alarm. Single-line control is the most commonly used control mode in painting production line. Each process is controlled in a single line. The electronic control box (cabinet) is located near the equipment. It has low cost, intuitive operation and convenient maintenance.

Suspension conveyor chain

The suspension conveyor is the conveying system of industrial pipeline and painting line. The accumulative suspension conveyor is applied to L=10-14M storage rack and special-shaped street lamp alloy steel pipe coating line. Workpieces are hoisted on special hangers (load-bearing up to 500-600 KG). Turnouts in and out are smooth. Turnouts are opened and closed by electrical control according to working instructions, which can meet the automatic transmission of workpieces in each processing station. Cooling is accumulated in parallel in the strong cold room and the lower part area, and hanging device identification and traction alarm stop device are installed in the strong cold area.