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User Manual for DQL5545S/DQL5545SG Automatic L-Sealer

Specifications

Model DQL5545S DQL5545SG
Power Source AC220V 50Hz/60Hz AC220V 50Hz/60Hz
Power (Horizontal Sealing) 1100W 1100W
Power (Vertical Sealing) 800W 800W
Sealing Temperature 180℃—250℃ 180℃—250℃
Sealing Time 0.2-1.0 seconds 0.2-1.0 seconds
Film Thickness 0.012-0.06 mm 0.012-0.06 mm
Capacity 0-30 packs/min 0-40 packs/min
Air Source 5-6 kg/cm² 5-6 kg/cm²
Packing Material PE, POF, PVC PE, POF, PVC
Max Sealing Size L550×W450 mm L550×W450 mm
Max Packing Size H≤140, L+2H≤550, W+H≤360 mm H≤140, L+2H≤550, W+H≤360 mm
Machine Size L1780×W880×H1610 mm L1780×W880×H1740 mm
Weight 320 kg 320 kg

Control Panel

The control panel has several buttons and switches (Figure 3):
  1. Touch screen
  2. Horizontal sealing temperature control
  3. Power indicator
  4. Green light (run button)
  5. Red light (stop button)
  6. Vertical sealing temperature control
  7. Temperature switch
  8. Manual/automatic selection switch
  9. Emergency stop switch

 

Operating Instructions

Preparation

  1. Check Air Pressure: Ensure air pressure is 5-6 kg/cm².
  2. Power On: Turn the power switch to “ON”.
  3. Heat On: Turn the sealing cutter electric switch to “ON”.
  4. Set Sealing Time: Adjust the sealing time.
  5. Set Margins: Adjust the front and rear margins.
  6. Adjust Height: Set the height of the triangular plate according to item height.
  7. Adjust Width: Set the front conveying width according to item width.
  8. Install Film: Follow the film-winding diagram to install the packaging film.
  9. Clamp Film: Pass the film through rollers and clamp the open end.
  10. Manual Sealing: Press the manual sealing and cutting switch.
  11. Start Conveyor: Turn on the operation switch to start the conveyor belt.
  12. Test Run: Use your hand to cover the electric eye to make the film roll out and seal, or jog the film and sealing manually.
  13. Waste Film: Pull the waste material to the waste film reeling device and fix it.

Start-Up

  1. Connect Power: Ensure the power supply is AC220V 50-60Hz.
  2. Use Safe Electricity: Ensure the use of industrial safety electricity.
  3. Connect Air Source: Connect dried and filtered air source, ensure stable air pressure.
  4. Check Standby Status: Ensure safety door and detection devices are in place.

Boot Sequence

  1. Power On: Turn on the power switch, tri-color light turns on.
  2. Heating On: Turn on the heating switch, temperature control starts.
  3. Set Temperatures: Set horizontal and vertical sealing temperatures.
  4. Set Parameters: Adjust sealing time, item height, front and rear margins.

Automatic Operation

  1. Set Parameters: Before automatic operation, set sealing and cutting temperatures, time, and margins.
  2. Start Automatic Mode: Enter the automatic control page, press [Start] or the run button on the panel.
  3. Operation Process: Place the material on the infeed conveyor belt. The material is transported forward, detected, and sealed automatically.

Alarm Handling

  1. Sealing Alarm: If the alarm indicator stays on, the machine stops running and shows fault information.
  2. Emergency Stop: Press the emergency stop button if the machine runs abnormally.
  3. Film Collection Alarm: If the film collection motor runs continuously for more than 5 seconds or does not run within three cycles, the alarm indicator stays on, indicating a film disconnect or limit switch issue.

Film Installation

  1. Film Materials: PE, POF, PVC half-folded film, thickness 0.012-0.06 mm.
  2. Film Width Calculation: Folded film width ≈ product width (W) + product height (H) × 2 + (50 ~ 150) mm.
  3. Film Guide: Follow the film-winding diagram to guide the film through rollers and the separation triangle.

Packaging Film Method

  1. Film Material: Install the film material on the rollers, with the opening facing inside the machine.
  2. Adjust Stoppers: Fit the film stopper rods at both ends of the film.
  3. Pass Through Rollers: Pull the film through the rollers and separation triangle.
  4. Clamp Film: Clamp the open end of the film into the clamping chain.
  5. Manual Sealing: Perform manual sealing to ensure proper installation.

Troubleshooting

Problem Cause Solution
Power indicator off Power not turned on Turn on power switch
Blown fuse Replace fuse
Power switch damaged Replace switch
Internal wiring failure Check and measure
Circuit breaker trip Check and replace components
Film not cut Uneven knife pressure Adjust pressure
Damaged sealing knife Replace knife
Low air pressure Adjust pressure
Conveyor issues Loose belt Adjust tension
Tight belt Adjust tension
Damaged motor gear Replace gear
Sealing arm not moving Damaged solenoid valve Measure and replace
Low air pressure Adjust pressure
Sensitive safety device Adjust switch
Temperature issues Blown fuse Replace fuse
Damaged heating tube Replace tube
Damaged thermostat Replace thermostat
Damaged relay Replace relay

6. Maintenance

  1. Clean Sealing Parts: Use a soft cloth to clean the sealing part after work.
  2. Lubricate Moving Parts: Regularly clean and oil moving parts like shafts, rods, and chains.
  3. Protect Sealing Blade: Replace the high-temperature varnished fabric if burned.
  4. Replace Worn Parts: Replace worn sealing cutters and silicone strips.


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