Fully Automated Assembly Electrostatic Spray Painting Line For Wheel Hub Spray

Product Specification

Equipment description:

‌ The overall architecture of automobile wheel spray painting equipment is composed of ‌ pretreatment system, spraying system, curing system, quality inspection system and auxiliary system ‌. It adopts fully automated assembly line design to support personalized spraying and environmental protection production needs. ‌ process flow ‌ : wheel hub loading → cleaning → drying → electrostatic spraying → robot precision spraying → curing → quality inspection → packaging. Key technology upgrade ‌‌ modular design ‌ : Support water-based paint/powder spraying fast switching (production line adjustment within 2 hours). ‌ Nano coating integration ‌ : Optional plasma pretreatment + nano ceramic spraying (300% better wear resistance). ‌ zero carbon emission program ‌ : hydrogen heating system + photovoltaic power supply to realize zero carbon emission throughout the spraying process.

Main structure and components:

The main structure and components are described in detail ‌
‌1. Pre-processing system ‌
‌ function ‌ : Clean the surface of the wheel hub to ensure spray adhesion.
‌ automatic cleaning line ‌‌ high pressure spray device ‌ : multi-angle nozzle (20MPa pressure), covering the hub and spoke gaps.
‌ chemical treatment tank ‌ : alkali washing tank (pH 10-12) : remove grease;
Pickling tank (pH 2-3) : Remove the oxide layer.
‌ circulating water system ‌ : six level countercurrent rinsing, equipped with waste water treatment module (activated carbon filtration + neutralization tank).
‌2. Spraying system ‌
‌ function ‌ : uniform coating primer, color paint, varnish.
‌ electrostatic spraying unit ‌‌ rotary cup electrostatic spray gun ‌ : core components: titanium alloy rotary cup (speed 50,000rpm), high voltage generator (100kV).
Atomization effect: particle ≤25μm, film uniformity ±3μm.
‌ powder recovery device ‌ : cyclone separator (primary recovery) + filter element array (secondary recovery), recovery rate ≥98%.
‌ robot spraying workstation ‌‌ 6-axis robot arm ‌ : servo motor drive, repeated positioning accuracy ±0.03mm.
‌3D visual positioning ‌ : laser scan the outline of the wheel hub, real-time adjustment of the spraying path.
‌ intelligent color changing valve set ‌ : 15 color switching, residual paint rate < 0.3%.
‌3. Curing system ‌
‌ function ‌ : Dry coating to form a high hardness surface.
‌ infrared hot air curing furnace ‌‌ Heating unit ‌ : type parameters
Infrared radiation plate wavelength 2-5μm, power density 8kW/m²
The wind speed of the hot air circulator is 0.5-2m/s adjustable
‌ Temperature control module ‌ : PID intelligent adjustment, temperature difference ±2°C.
‌ waste heat recovery ‌ : ceramic heat accumulator, energy saving rate of 30%.
‌UV curing machine (optional) ‌ mercury lamp array (wavelength 365nm) + reflector, finish varnish surface drying in 3 seconds.
‌4. The quality inspection system ‌
‌ function ‌ : real-time monitoring of coating quality and precision.
‌ online film thickness detector ‌ : laser triangle sensor, scanning speed 200mm/s, accuracy ±1μm.
‌AI visual quality inspection machine ‌ : high-resolution industrial camera (50 million pixels) + deep learning algorithm, defect recognition rate > 99.8%.
‌5. Auxiliary system ‌
‌ conveyor chain ‌ : high temperature resistant suspension chain (load 500kg), speed 0.5-3m/min adjustable.
‌ Environmental protection treatment device ‌ : VOC catalytic combustion tower (treatment efficiency ≥99%);
Water-based paint wastewater biochemical treatment tank (COD discharge < 50mg/L).
‌ Central console ‌ : Integrated PLC+SCADA system, supporting digital twin simulation and remote operation and maintenance.

Features:

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.