First, how does the conveyor line achieve the precise and efficient flow of seats?
Seat conveying lines throughDouble roller + lift synergy systemRealise full process automated conveying. Its core structure contains:
- Double-layer roller conveyor design: Upper conveyor carrier seats (with loads up to 500 kg/m) and lower empty carriers return, forming a closed loop;
- Intelligent Lift: Hydraulically or pneumatically driven lifting table (effective length 2 metres) to transfer chairs vertically to different stations, avoiding interference with the main line;
- Positioning sensing systems: RFID reader scanning carrier information, laser sensor secondary calibration seat model, positioning accuracy error ≤ 1.2mm.
case support: With the adoption of this system in the Wuhan plant of Dragon Motor, thePallet conveying speed up to 15m/minThe 270-metre cross-shop conveyor time has been reduced to 18 minutes, and single-line capacity has been increased to 46 V/H (vehicles per hour).
Second, why can improve 50% production efficiency? Analysis of three core mechanisms
1. Automation as an alternative to manual handling
- Robotic Collaboration: Six-axis robotic arm equipped with a pressure-sensing gripper that grips - rotates - and drops the seat in 30 seconds;
- Cross-line transfer technology: Linear guide-driven handling device for synchronised shunting of the main/passenger seat.Reduction of manual intervention 80%.
2. Continuous flow production model
- Eliminate wasteful waiting: Modify the low-speed motor-driven rollers to make the carriercontinuous flow(Original stop-and-go operation wait time percentage 40%);
- Consolidation of tightening processes: Pre-tightening and final tightening are combined into a single high-precision tightening (torque error ≤ 0.5Nm), and the beat is shortened by 25 seconds/vehicle.
3. Flexible capacity adaptation
- Dynamic storage buffer: Warehouse shelves are equipped with multi-layer chain conveyor belts, supporting6 models of seatsMixed line production, changeover response time ≤ 5 minutes;
- Intelligent Dispatch of Carriers: Depalletiser + jacking rotating mechanism linkage to achieve 90° steering of empty carriers for replenishment, and stacking density increase of 200%.
data comparison:: Company A's modifications have increased the per capita efficiency of the seat installation section from 1.2 vehicles per hour to 1.8 vehicles per hour.Integrated Efficiency Improvement 50%.
III. Technological evolution: from basic delivery to intelligent collaboration
▶ Third-generation technology breakthroughs.Seamless cross-platform
- Truck feeder system: The hydraulic lifting mechanism automatically adjusts the height (±50mm) to ensure that the carriage conveyor belt is accurately aligned with the factory line;
- Loading and unloading synchronisation technology: Roller conveyor + Push car guide for seats from production line → transport vehicle → final assembly linezero drop transhipment.
▶ Failure prevention design
- Dual Security: Lift grating emergency stop + conveyor chain motor redundancy backup (SEW motor one with one backup), failure downtime rate reduced by 90%;
- self-diagnostic systemPressure sensor monitors the gripping strength in real time and alarms immediately when the limit is exceeded, reducing the product damage rate to 0.02%.
Fourth, the industry application revelation: efficiency and flexibility of the double revolution
Shenlong Motors passedAerial roller conveyor storage sectionResolving capacity fluctuations: When the assembly line is suspended, the system automatically caches 12 seat carriers and restores saturation supply 30 seconds after restart. A new energy vehicle company usesAGV Linkage Conveyor LineThe company has achieved a direct supply of seats to the workstations in order sequence and improved inventory turnover by 300%.
future trends: Incorporating digital twin technology to predict blockages through real-time traffic simulation, further breaking through the 60V/H capacity bottleneck.
In the current automotive manufacturing competition, the seat conveyor line has evolved from a single logistics device to aProduction Beat ControllerIts value is not only a handling tool, but also a key node for flexible manufacturing. Its value is not only a handling tool, but also a key node to open up flexible manufacturing - when the production line can precisely dispatch hundreds of seats like a symphony orchestra, the 50%'s leap in efficiency is the inevitable echo of technological empowerment.