I. Process Problem Prevention
1. Inaccurate Pattern Registration
Paste Adjustment: Ensure the paste on the rubber guide belt is uniform and of appropriate viscosity, avoiding excessive thickness or thinness.
Guide Belt Cleaning: Thoroughly clean the guide belt surface to prevent residual paste from affecting pattern registration accuracy.
Screen Arrangement: Arrange closely related screens adjacent to each other, avoiding horizontal straight-line overlap.
2. Squeegee Lines:
Squeegee Maintenance: Keep the squeegee straight, regularly check for nicks, and replace promptly.
Rotary Screen Inspection: Before use, check the clarity of the mesh openings and the smoothness of the screen walls to prevent adhesive from seeping into the inner wall.
3. Exposed Areas:
Paste Filtration: Fully dissolve dyes, chemicals, and auxiliaries during paste preparation, and filter the paste to prevent particles and impurities from entering.
Rotary Screen Selection: Select appropriate rotary screens to avoid insufficient color acquisition due to mesh blockage.
4. Printing Process
Paste Viscosity: Reduce paste viscosity to ensure optimal printing results.
Semi-finished Product Drying: Ensure semi-finished products are fully dry to prevent paste penetration.
5. Printing Machine Clogging:
Environmental Cleanliness: Maintain a clean printing environment to reduce fiber lint and impurities.
Semi-finished Product Quality: Improve semi-finished product quality and reduce impurity contamination.
II. Mechanical Fault Prevention
1. Belt Misalignment:
Tension Adjustment: Regularly check belt tension to ensure uniformity.
Correction Device: Repair or replace malfunctioning correction devices.
2. Printing Machine Twisting/Broken Screen:
Speed Control: Control the speed difference between the belt and the rotary screen to prevent excessive speed.
Gap Optimization: Adjust the gap between the belt and the rotary screen to prevent one-sided transmission twisting.
3. Pneumatic System Faults:
Component Inspection:* Regularly inspect pneumatic components to ensure the gas is pure and dry.
Maintenance: Regularly clean the pneumatic system to prevent blockages.
III. Accessories and Consumables Maintenance
Printing Solvent: Regularly check the quality of the solidifying solvent to ensure effective color fixing.
Teflon Conveyor Belt: Regularly check the wear and tear of the conveyor belt and replace it promptly.
Foamed Sponge Strips: Regularly check the aging of the sealing strips to ensure effective sealing.
IV. Operating Procedures
Pre-start Inspection: Confirm all components are in good working order and turn off the power.
Parameter Adjustment: Adjust the speed and pressure according to the fabric, avoiding excessive or insufficient pressure.
Fabric Preparation: Lay the fabric flat and secure it to the printing table, avoiding wrinkles.
Pattern Installation: Mount the pattern plate onto the printing roller, ensuring a secure installation.
Start-up: Observe the effect and adjust parameters as needed.
V. Environmental Control
Cleaning: Regularly clean the equipment and environment to prevent impurities from entering.
Temperature and Humidity Control: Maintain stable temperature and humidity in the printing environment to prevent changes in the performance of the printing paste.
Ventilation System: Ensure good ventilation in the printing workshop to prevent the accumulation of harmful gases.
