The automated motor water-curtain painting production line is a highly efficient, environmentally friendly, and automated coating system, mainly used for surface painting of motor housings and other products. Here is a more detailed description:

1. Process Flow

1.1 Pre-treatment
Before painting, motor housings need to undergo a series of pre-treatment processes to ensure the adhesion and corrosion resistance of the coating. The pre-treatment process typically includes the following steps:
- Degreasing: Using degreasing agents to remove oil and grease from the motor housing surface to ensure a clean surface.
- Water washing: Multiple water washes to thoroughly remove degreasing agent residues and ensure no impurities remain on the surface.
- Phosphating: Through phosphating treatment, a protective film is formed on the motor housing surface to enhance the adhesion and corrosion resistance of the coating.
- Water washing: Further water washing to remove residues after phosphating, ensuring the surface is clean.

1.2 Water-Curtain Painting
The spray booth is the core part of the production line, featuring a water-curtain structure that can effectively capture paint mist and reduce environmental pollution. The painting process is as follows:
- Water curtain panel: The water curtain panel is positioned directly in front of the operating face. A stable liquid flow is formed on the surface of the water curtain panel, and the paint mist mixes fully with the water before falling into the recirculating water tank.
- Vortex plate: Located below the water curtain panel, the vortex plate captures paint mist through the vortex acceleration effect.
- Spraying system: The spraying system, located behind the water curtain panel, captures paint mist through water mist sprayed by nozzles, ensuring complete absorption of the paint mist.
- Exhaust system: The exhaust system draws out the exhaust gas produced during the painting process. After being treated by the water curtain and spraying system, the gas passes through a gas-water separator to achieve gas-water separation, and the purified air is discharged outdoors.
- Automatic spraying equipment: High-precision automatic spray guns are used. Depending on the shape and size of the motor housing, the spraying parameters are automatically adjusted to ensure a uniform and smooth coating.

1.3 Flow leveling and Drying
After painting, the motor housings enter the flow leveling room, where the paint film naturally levels out to avoid coating defects such as orange peel and sagging. The motor housings then enter the drying room, where a hot air recirculation heating method is used to ensure uniform curing of the coating.

2. Equipment Composition

2.1 Spray Booth
The spray booth is the core part of the production line and mainly consists of the following components:
- Booth body: The main structure of the spray booth, made of high-strength steel, with corrosion-resistant material applied inside.
- Air supply system: Clean air is delivered through high-efficiency filters to ensure the cleanliness of the air inside the spray booth.
- Bottom paint mist treatment device: Including the water curtain panel, overflow trough, vortex plate, and spraying system, used to capture and treat paint mist.
- Exhaust system: Exhaust gas is drawn out through an exhaust fan and treated before discharge.
- Water recirculation system: Water in the recirculating water tank is filtered and purified for reuse, reducing water waste.

2.2 Conveying System
The conveying system is responsible for the automated transportation of motor housings and mainly consists of the following components:
- Overhead conveyor chain: Used to suspend motor housings and move them between different stations through chain drive.
- Lifting mechanism: Between the spray booth and drying room, the lifting mechanism transfers motor housings from the overhead conveyor chain to the conveyor belt in the spray booth or drying room.
- Automatic positioning device: Ensures that motor housings maintain an accurate position during the painting and drying processes.

2.3 Drying System
The drying system uses a hot air recirculation heating method to ensure uniform curing of the coating:
- Hot air recirculation furnace: Through a hot air recirculation system, hot air is evenly blown towards the motor housings to ensure rapid curing of the coating.
- Temperature control system: Advanced temperature sensors and control systems are used to accurately control the drying temperature and ensure coating quality.

2.4 Exhaust Gas Treatment System
The exhaust gas treatment system is used to treat the exhaust gas produced during the painting process and mainly consists of the following components:
- Two-stage filter: Preliminary filtration of exhaust gas to remove large paint mist particles.
- Medium-efficiency filter bag: Further filtration of small particles in the exhaust gas.
- Gas-water separator: Separates moisture from the exhaust gas to ensure that the discharged air meets environmental standards.

3. Features

3.1 High Degree of Automation
The production line uses advanced automated control technology to achieve fully automated operation from loading to unloading. Operators only need to set parameters on the control panel, and the production line will automatically complete all processes.

3.2 Environmental Protection and Energy Saving
The water-curtain painting process can effectively capture paint mist and reduce exhaust gas emissions. At the same time, the water recirculation system achieves the recycling of water resources, reducing production costs.

3.3 High Coating Quality
The spraying equipment uses high-precision automatic spray guns to ensure a uniform and smooth coating with strong adhesion. The flow leveling and drying processes further improve the quality and durability of the coating.

3.4 High Production Efficiency
The automated conveying and spraying systems greatly increase production efficiency and enable large-scale continuous production. The production line is designed for flexible production and can quickly adjust production parameters according to production needs.

4. Application Fields
The automated motor water-curtain painting production line is widely used in the motor manufacturing industry and is suitable for painting motors weighing up to 1 ton. Its efficient, environmentally friendly, and automated features make it an indispensable piece of equipment in modern motor manufacturing.

The automated motor water-curtain painting production line is a highly efficient and environmentally friendly coating system for motor housings. It features a pre-treatment process including degreasing and phosphating to ensure coating adhesion. The water-curtain spray booth captures paint mist effectively, reducing environmental impact. Coatings are applied using high-precision automatic spray guns for uniformity. After painting, parts enter a flow leveling room and then a drying room with hot air recirculation for curing. The line is fully automated, with advanced controls for precise operation. It includes an exhaust gas treatment system with filters and separators to meet environmental standards. This system enhances coating quality, production efficiency, and is suitable for flexible, large-scale motor manufacturing.