Fluorescent lamp assembly line

This automated assembly line is engineered specifically for the mass production of T8/T5 fluorescent tubes and their LED counterparts. Addressing the inherent challenges of handling long, slender, and fragile glass components alongside precision electronics, the line utilizes an “aluminum extrusion frame with anti-static flat belt” conveying system. This design ensures smooth transitions and prevents impact damage during high-speed operation.

I. Conveyor System & Layout Configuration

The structural backbone consists of industrial-grade aluminum extrusions, providing a rigid yet visually transparent framework. The core transport medium is a green anti-static flat belt. Its low-friction, perfectly planar surface prevents glass tubes from rolling or sustaining abrasions during transit. Dense transverse guide rails facilitate an efficient “U-shaped” or “In-line” recirculation layout, enabling rapid cycling of empty pallets and fixtures between loading zones and assembly stations. Overhead LED strip lighting guarantees optimal work plane illumination, essential for operators performing intricate tasks such as inserting fine lead pins and soldering.

II. Core Assembly Process Flow

The workflow is optimized for the precision requirements of lighting manufacturing:

1. Lead Wire Insertion:​ Copper or aluminum lead pins are inserted into the glass tube ends, followed by initial phosphor coating or LED chip bonding.
2. PCB Mounting (LED Tubes):​ At high-precision stations, constant current drivers (long-form PCBs) are secured to aluminum or plastic housings via snap-fits or precision dispensed adhesive.
3. End Sealing & Exhaust:​ End caps are fitted and subjected to high-frequency sealing. Subsequently, tubes are evacuated using helium leak detectors or vacuum pumps and backfilled with inert protective gas.
4. Burn-in Testing:​ Products are transferred to a segregated aging area for extended powered-on testing (several hours) to eliminate early-life failures (“dark tubes”).
5. Final Cosmetic Inspection:​ Manual visual checks for black spots, bubbles, or surface defects, supplemented by integrating sphere sampling to measure luminous flux.

III. Quality Control & Testing Architecture

The line integrates audio-visual alarm systems interfaced with the central PLC. If a unit exhibits internal shorts, abnormal driver no-load conditions, or fails to ignite, the system automatically diverts it to a dedicated rework lane. All finished goods undergo automated burn-in screening prior to dispatch to ensure light decay (lumen maintenance) remains strictly within industry standards.

IV. Technical Specifications

• Target Products:​ 0.6m – 1.5m T8/T5 LED Tube Lights / Traditional Fluorescent Lamps
• Line Speed:​ Variable Frequency Drive (VFD), 6–12 meters/minute
• Conveyor Type:​ Anti-static flat belt with lateral transfer capability
• Pneumatics:​ 0.5–0.6 MPa (For pneumatic press-fit tooling)
• Load Capacity:​ ≥10 kg per belt section (calculated with pallet load)

V. Design Advantages

Leveraging the modularity of aluminum extrusions, this tube light assembly line offers exceptional flexibility, allowing workstation spacing to be adjusted for varying tube lengths (e.g., mixed production of 0.6m and 1.2m units). The flat belt system drastically reduces breakage rates of elongated glassware during transfer. Coupled with a segregated burn-in zone, this configuration significantly enhances the outbound reliability and yield of finished lighting products.

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