Auto bumper painting production line core goal : to achieve high adhesion spraying of plastic bumper surface, to meet the requirements of weather resistance, stone impact resistance and flawless appearance.
Core process : feeding → plasma cleaning → electrostatic dust removal → primer spraying → flash drying → top paint spraying → UV curing → cooling quality inspection → cutting
Technology upgrade point :
Flexible production: Support multi-model bumper mixed line spraying (compatible with PP/ABS material)
Digital management: MES system real-time monitoring of process parameters (humidity, temperature, film thickness)
Ultra-low emission: zeolite wheel +RTO exhaust gas treatment (VOC emission ≤20mg/m³)
The linear body has a capacity of 400,000-500,000 pieces/year, and supports modular expansion to 800,000 pieces/year, suitable for O&M and Tier 1 supplier scenarios.
Detailed explanation of core equipment and structure
module Core components technical parameters/functions
1. Pretreatment system - Plasma surface activator
- Ultrasonic cleaning tank (alkaline degreaser)
- Ion air knife dust removal device - Plasma power 20kW (activation Dyne value ≥42)
- Cleaning temperature 60℃±2℃
- Dust removal efficiency 99.5%
2. Spraying system - Seven-axis cooperative robot (±0.05mm accuracy)
- Air assisted electrostatic spray gun
- Color change valve set (3 seconds quick color change) - Spray flow rate 200-500ml/min
- Electrostatic voltage 60-90kV
- Color difference control ΔE≤0.8
3. Curing system - UV-LED curing module
- Infrared medium wave heating zone
- Temperature control closed-loop system - UV wavelength 365-405nm (energy density ≥3000mJ/cm²)
- Curing temperature 80℃±5℃ (anti-plastic deformation)
4. Conveyor system - Integrated conveyor chain (with rotating tray)
- Servo positioning fixture
- Anti-static conductivity removal device - maximum load 80kg/ station
- Rotation speed 10-30rpm
- Surface resistance ≤1×10⁶Ω (anti-paint mist adsorption)
5. Environmental protection system - Dry spray room (Venturi filter paper)
- zeolite wheel adsorption concentration
- RTO incineration (heat recovery 95%) - paint fog capture rate ≥99%
- Exhaust gas purification efficiency ≥98%
- Natural gas consumption ≤15m³/h
1.High cost performance Based on the customer's product positioning and development strategy, based on economic benefits, to achieve the best cost performance.
2.Advanced equipment design concept of excellence, high degree of automation of industrial equipment, show modern advanced enterprise style.
3.High adaptability to meet the current production requirements, and reserve space for development, considering the later production increase and quality improvement needs.
4.Quality standards strictly follow the IS0900 quality management system, and every small link of the entire equipment installation is strictly checked.