1、 Preparation before startup
1. Check if the air source pressure of the coating machine is normal;
2. Check whether each component is clean and intact;
3. Check whether the buttons and switches of each oven door and control cabinet are in normal condition;
4. Install various pipe fittings, springs, nozzles, and mixing drums;
2、 Unit startup and shutdown operations
1. Power on operation:
(1) Slowly open the compressed air supply main valve and confirm that the total air pressure is greater than 0.5MPa;
(2) Start the oil boiler circulation pump, circulate for 10 minutes, and then turn on the thermal system. The oil temperature requirement is 160C;
(3) Confirm that the "positive pressure protection maintenance switch" on the AC control cabinet is in the "off" position;
(4) Press the 'Run' button on the 'AIR PURGE Positive Pressure Fan' on the control cabinet to perform air cleaning;
(5) The "AIR PURGE positive pressure state" on the control cabinet refers to the end of the air wash when the small light is on;
(6) Turn on the main power switch and explosion-proof fan on the AC control cabinet, and keep the positive pressure maintenance switch (bypass) closed.
2. Shutdown operation:
(1) Press the "stop" button on the control panel for the injection pump;
(2) When there is no coating liquid adhering to the substrate passing through the sewing die head, press the "back" button of the "DIE nozzle" on the operation panel;
(3) After confirming that all the coating parts have been wound up by the winding device, press the "Run" button on any operating panel to stop the operation of the coating line;
(4) Turn off the oil boiler heating and turn off the circulation pump when the oil temperature drops below 120 ° C;
(5) Stop adjusting the temperature of the oven and wait until the temperature in each room of the oven has dropped to ≤ 60C before stopping the operation of all fans in the oven;
(6) Press the "Stop" button on the control panel to release the zero speed state;
(7) Press the "Open" button of the "Feed Drive" on the control panel, and press the "Open" button of the "Discharge Drive" on the SB7 switch box to move each clamping roller to the open position;
(8) Release the coating liquid inside the seam mold head;
(9) Stop the operation of the coating liquid supply device mixer;
(10) Close the manual two-way valve at the outlet of the liquid supply tank;
(11) Disconnect the power supply of the pressure sensor inside the seam mold and the hydraulic sensor of the supply pipe;
(12) Disconnect the power supply of the liquid level sensor in the coating liquid supply tank of the coating liquid supply device;
(13) Remove the conduits, valves, clamps, gaskets, filters, sensors, seam molds, gaskets, device bodies, etc. from each liquid supply pipe, clean them, and reinstall them back to their original state after cleaning;
(14) Confirm that all fans except for the air wash fan have stopped, and turn off the main power switch on the AC control cabinet;
(15) Press the 'Stop' button on the control cabinet for the 'AIR PURGE Positive Pressure Fan';
(16) Close the main valve for compressed air supply.