English (UK) 
简体中文 In the field of industrial manufacturing.Balancing Efficiency and Qualityhad been a chronic pain point - until the advent of the automated timespeed chain coating system. This fusion ofHigh-efficiency conveying by speed chaintogether withRobot Precision CoatingThe intelligent production line, which is moving 12 metres per minute while maintaining a coating error of ≤3 microns, is restructuring the rules of the game in surface treatment.
I. The core of multiplier chain technology: precision coupling of speed and control
The mystery of the "multiplication" of the speed chain comes fromDouble Diameter Roller Structure::
- Internal chain roller(diameter d): contact with the guideway to form the base velocity V₁
- External Chain Roller(Diameter D, D>d): additional speed due to friction with the workpiece plate
According to the motion superposition formulaTotal V = V₁ x (1 + D/d)The workpiece speed can be up to 3 times the speed of the chain when D=2d. This design allows workpieces such as pots and pans, automotive parts, etc. to be transported at aLow energy consumption chain driverealiseHigh-speed conveying, motor load reduction 40%.
Unique suitability for spraying scenarios::
In a home appliance factory in Jiangsu Province, through the multiplier chain of theDynamic stopping technology, the spraying robot can accurately intercept the workpiece in 0.5 seconds to achieve:
- Adaptive spray angle adjustment for shaped surfaces
- Fluctuation of coating thickness is controlled within ±2μm.
- Reduced cleaning time for colour change 60%
Second, the three major upgrades of the automated spraying process
1.Intelligent re-engineering of the pre-processing chain
Conventional manual cleaning tends to leave oil residues that cause the coating to peel off. Speed chain production line integration:
- Multi-stage chemical treatment tank: Alkaline degreasing→Silanisation→Pure water rinsing
- Film Thickness Monitor: Real-time feedback on the quality of the phosphate layer (target value 1.5-3μm)
- Vortex drying technology: 80℃ hot air circulation dewatering, energy consumption reduced by 35%
case (law): After introduction to a hardware factory in Guangdong, the primer adhesion test value was improved from Class 3B (partial peeling) to Class 5B (zero peeling).
2.The Perception Revolution in Spraying Robots
3D vision system + AI trajectory planning to crack traditional pain points:
plaintextmake a copy of[Workpiece recognition] → [Point cloud modelling] → [Path generation] → [Real-time deviation correction]
- Automotive bumper spraying: film thickness uniformity up to 93% (manual only 70%)
- Response time of colour change valve group ≤ 1.2 seconds, paint waste reduction 45%
3.Precise control of the curing process
adoptionInfrared spectral temperature control systemSolve the problem of overbaked yellowing:
- Temperature sensor scans the surface of the workpiece every 0.5 seconds
- PLC dynamically adjusts oven temperature (error ±2℃)
- UV curing energy density is stable at 800-1200mj/cm².
As a result, an electric car frame production line reduced the defective rate from 5.7% to 0.8%.
III. Key breakthroughs in systems integration
1.Co-optimisation of multiplier chains and spraying
| conflict point | prescription | Effectiveness Enhancement |
|---|---|---|
| Chain link gap paint penetration | specialPolytetrafluoroethylene anti-fouling shroud | Frequency of clearance reduced by 50% |
| Uneven atomisation due to high speed vibration | Magnetic suspension damping guide+ Pneumatic flow stabilisation | Orange Peel Defect ↓38% |
| Spraying of small workpieces | Electrostatic adsorption work plate(±5000V) | Coating utilisation rate ↑27% |
2.Data-driven intelligent hubs
Built on Industrial Internet ArchitectureThree-layer control system::
plaintextmake a copy of[Device layer: PLC + sensors] │ [Execution layer: MES scheduling system] │ [Decision Layer: AI Capacity Optimisation Model]
- Failure downtime reduced by 70% through predictive maintenance at a Suzhou plant
- Energy Consumption Kanban Reduces Spraying Cost per Piece by $0.34
Fourth, the industry landing: the real scene of the effectiveness of the evidence
-
Aluminium alloy pots and pans spraying line (a company in Shandong)
- adoptionDouble speed chain return design(upper coating/lower curing)
- Electromagnetic induction magnetically conductive layer sprayingAccuracy up to ±0.1mm (conventional ±0.5mm)
- Production capacity from 800 pieces/day to 2200 pieces/day, yield rate 99.2%
-
New energy vehicle battery box spraying (a factory in Zhejiang)
- Explosion-proof Speed Chain(Flame retardant grade ExdⅡCT4)
- Six-axis robot accurately covers internal reinforcement
- VOC emission concentration ≤20mg/m³ (national standard ≤50mg/m³)
V. Future trends: new boundaries for flexible manufacturing
-
Digital twin pre-commissioning
A factory in Qingdao previews a production line in a virtual environment:- Thermal deformation compensation algorithm for 12 metre long chains with <0.1mm runout
- New model introduction cycle time from 14 days → 3 days
-
Self-healing coating technology
ExperimentalMicroencapsulated coatings::- Automatic repair of coatings after scratching (response time < 2 hours)
- Compatibility with robotic coating systems up to 96%
-
Green Manufacturing Revolution
Launched in 2025Bio-based waterborne coatings::- Carbon Footprint Reduction 53%
- Curing energy consumption reduced by 40%
Soon to be applied to the multiplier chain appliance spraying line.
Ask Yourself: Core Concerns with Speed Chain Coating Lines
Q1: How to solve the problem of uneven coating of workpieces at the turn?
A: AdoptionDifferential sprocket set design-Inner ring sprocket diameter is reduced by 5% to compensate for changes in spraying distance due to centrifugal force; also mountingNegative pressure air curtain systemAdsorption of overspray paint mist.
Q2: How to avoid slipping of the doubler chain for heavy loaded workpieces (e.g. 2 tonne racks)?
A: Third-order defence and control:
- select and useSteel Roller(non-standard D/d = 2.8 times the speed chain)
- Turning radius ≥ 1.5 times the length of the workpiece
- Roller surfacelaser microstructure(Friction coefficient↑40%)
Q3: Why not just use AGVs instead of doubling chains?
A: The multiplier chain is inIn continuous flow productionIrreplaceable:
- Energy consumption is only 1/4 of that of AGV systems
- Synchronised dynamic sprayingCapacity (AGVs need to be parked for operations)
- Low Maintenance 60%
While traditional manufacturing is still debating whether "efficiency and quality can go hand in hand", automated speed chain coating lines have been used in the production of3 times higher capacity per square metre, andEnergy consumption curve down 45%The answer is given by the actual performance - it allows high-speed finishing to evolve from a paradoxical proposition to the basic syntax of intelligent manufacturing.
