English (UK) 
简体中文 I. Core Technology Analysis: Physical Innovation and Precise Adaptation of Multiplier Chain
The core breakthrough of the display multiplier chain conveyor line lies in theDeep coupling of precision growth rate and spatial synergy. The technical principles can be broken down as follows:
- Doubling effect reinforcement: Based on the formulaVcatch sight of in a doorway (old)
= νcable length (= 1
× (1 + D/d)Adoptionφ50mm nylon roller(D) withφ20mm hardened steel roller(d) Combination to achieve 2.5 times the chain speed operation of the work plate (the chain needs only 0.32m/s at the measured speed of 0.8m/s); - Antistatic optimised design: Rollers with integrated carbon fibre conductive layer (resistance ≤ 10⁶Ω), eliminating the risk of electrostatic damage during screen transport;
- Microvibration suppression: Rail built-inSilicone Damping MatrixThe vibration amplitude is controlled to ±0.03mm to avoid shifting of the LCD panel.
personal viewpointThe value of the speed chain in the display field can be summarised by more than just the word "conveyor". In the case of a panel factory, thePrecision adjustment of roller diameter difference (D/d=2.48)The 32-inch screen positioning error ≤ 0.1mm, confirming the "physical growth rate is the invisible pusher of precision manufacturing" - seemingly simple mechanical structure, is actually the bottom of the display quality guarantee.
II. System Architecture: The Modular Space Revolution in Display Manufacturing
1. Electric operation structure
- Dual power supply system::
- Line EmbeddingGold-plated Conductive WheelWorkpiece configurationCopper alloy conductive rowIt supports 12V/48V dual voltage synchronous transmission;
- Aging test segment realisationFull load charged operationThe screen has a power-on detection rate of 100%.
2. Innovations in space folding
- Double Vertical Reflux: The upper layer carries the main body of the screen (load ≤ 30kg), and the lower layer reflows empty trays.Reduced footprint 50%(Conventional single layer wire bodies need to be reserved for return channels);
- Compact Steering Module: AdoptionHyperbolic Aluminium Alloy Rail(Radius of curvature R=300mm), supports 180° steering without squeezing the edges of the screen.
III. Display Production Adaptation: Full Scene Penetration from Glass Substrate to Complete Machine Assembly
1. Glass substrate pre-processing section
- Constant Temperature Clean Conveying: Rail IntegrationPTC heating film(Temperature control accuracy ±0.5°C), maintaining a stable environment of 25°C/humidity 45%RH;
- Dust-free sealed designParticle emission ≤ Class 100 for fully enclosed lubrication modules, guaranteeing zero contamination of the substrate surface.
2. Module assembly and aging section
- Precise timing control::
- Blocker response ≤ 0.3 seconds, station dwell time error ≤ 0.5%;
- Ageing Area Support72 hours of continuous live operationThe temperature uniformity is ±1℃.
3. Packaging section of the machine
- flexible shunting system: Based onRFID pallet identification(Read-write distance 20cm), automatic sorting of qualified/returned products, sorting efficiency 1200 units/hour.
IV. Intelligent control: data-driven nerve centre for display manufacturing
1. Dynamic beat optimisation
- AI plugging prediction model: Adjusts chain speed by laser scanning screen spacing 0.5 seconds in advance (40% reduction in measured downtime at one plant);
- Self-regulating energy efficiency: Switching of idle times to0.5m/s energy saving mode, the combined power consumption is reduced by 35%.
2. Digital twin operations and maintenance
- Embedded sensor cluster per metre: Real-time monitoring of tension/temperature/vibration, generation ofHealth index CHI ≥ 0.92.;
- AR-assisted maintenance: Fault points are holographically labelled by HoloLens, increasing repair efficiency by 90%.
V. Engineering practice: landing attack and effectiveness verification
1. Key points for installation and commissioning
- Biaxial tension calibration: The difference in chain droop between two sides is ≤2mm/10m to avoid screen runout;
- Static ground impedance: Loop resistance ≤4Ω to prevent ESD breakdown of IC (standard requirement ≤10Ω).
2. Maintenance strategy upgrade
| Maintenance level | Core mandate | Display line special requirements |
|---|---|---|
| everyday life | Cleaning of conductive wheels/guides | Dust free cloth + isopropyl alcohol wipe |
| monthly | Lubricated roller bearings | Food grade silicone grease (temperature resistance -40~200℃) |
| year (e.g. school year, fiscal year) | Replacement of worn links | Partial replacement (cost reduction 70%) |
Exclusive Case: After the deployment of domestic head panel makersScreen scratch rate reduced from 3% to 0.2%The changeover time was compressed from 45 minutes to 8 minutes, and the OEE broke through 91% - proving that the speed chain is the "invisible quality officer" of display manufacturing.
Core Q&A about display multiplier chains
Q1：Why is it necessary to use speed multiplier chain instead of normal conveyor belt for display production line?
A: Triple irreplaceability:
- electrostatic protection and control: Conductive wheel/row system eliminates ESD risk in Class 10,000 cleanrooms;
- Microvibration suppression: Silicone damping controls vibration to ±0.03mm to avoid liquid crystal molecule deflection;
- electrically charged aging: Direct power supply from the tooling board for 72 hours of continuous aging on-line.
Q2: How to solve the collision risk of screen edges during steering?
A: Dual protection mechanism:
- Curvature-optimised guides: Aluminium alloy guide rail radius of curvature ≥300mm (industry standard 150mm);
- Optical barrier monitoring: Real-time detection of the amount of screen overhang and automatic speed reduction when the limit is exceeded.
Q3: What parameters directly affect the screen delivery quality?
A: Key control dimensions:
- position accuracy: Blocker error ≤ ± 0.1mm (ordinary production line ± 1mm);
- Temperature control stability: Temperature fluctuation in the aging section ≤±0.5℃;
- electrostatic threshold: Workpiece board resistance to ground ≤ 10⁶Ω.
Q4: Future direction of technology evolution?
A: Toopto-mechanical integrationAdvancement:
- makings: Silicon nitride ceramic rollers (Mohs hardness grade 9, 3 times longer life);
- containment: Real-time detection of screen micro-scratches by machine vision (recognition accuracy 5μm);
- renewable energy: Guide rail integrated photovoltaic film (self-supply rate of energy consumption of line body ≥ 30%).
Ultimate Insight: The ultimate value of the multiplier chain in display manufacturing lies in theReconstructed definition of "channelling"--From a physical displacement tool to a quality assurance system. When each screen crosses the 100-metre production line with a precision of 0.1mm, the precision synergy of machinery and optoelectronics is rewriting the manufacturing philosophy of "China Screen".
