Manual of Hot Melt Adhesive Semi Automatic Box Sealing Machine (Part 2)

Figure A-5

① Set temperature: refer to the manual;

② The manual direction is for manual operation, while the automatic direction is for automatic operation.

Figure A-6

① Height adjustment of the cardboard box platform;

② The tailgate is adjusted forward and backward.

Figure A-7

① Main power switch

② Heating tube heating solid state

③ Cylinder battery valve fuse

④ Program controlled PLC

Figure A-8

① Box pushing cylinder: can be adjusted up and down by about 100mm to meet the requirements.

Figure A-9

① Add spindle oil or sewing machine oil, and replace it every 6 months to improve the service life of the cylinder;

② It is advisable to adjust the pressure to 7kg/cm.

Figure A-10

① Adjust the glue level. This adjustment function must be adjusted after the glue has completely melted down

② When adjusting the requirements, it is advisable to use the glue claw to lift the paper box, and the glue point should contact the paper box.

5、 Fault handling

1. Abnormal heating

1) No heating: abnormal power switch and socket, air switch tripped, and heating element damaged;

2) Slow heating: The electric heating element is damaged, and the measured value of the electric heating element on the multimeter is less than 45 Ω. Check and update the electric heating element one by one;

3) Excessive temperature rise: The temperature controller is out of control, and the solid-state relay is broken down. Simply update the solid-state relay.

2. Abnormal hot melt adhesive

1) Sealing and wire drawing: This phenomenon is caused by low adhesive temperature. It is appropriate to increase the temperature by 5 ℃, and try again after the temperature stabilizes for about 20 minutes. It can be repeatedly corrected to meet the requirements;

2) Yellowing and carbonization (black spots) of hot melt adhesive: This is caused by long-term high temperature, and appropriate temperature reduction is sufficient.

3. Box sealing deviation

1) The left and right tracks are not parallel, and the bottom track is empty, adjusted to meet the requirements;

2) The vertical left and right main beams are not aligned, and the front and rear error is greater than 1.5 mm. Please adjust the vertical left and right to meet the requirements. If necessary, please correct the machine base and add shims to solve the problem.

3) The size deviation of the paper box itself is too large, and the gap at the root of the tongue is too large. If necessary, the paper box needs to be modified to solve the problem. (A better paper box is when the left and right inner tongues are bent, it is best to press the outer tongue paper box tightly to bend the root.).

4) Excessive manual pushing of the cardboard box results in uneven force, resulting in a diagonal angle of the cardboard box.

4. Pneumatic abnormalities:

1) When pushing in the paper box (automatic state), there is no automatic gluing. Please check if the microswitch has been touched and if the microswitch has failed. It can be adjusted and updated to solve the problem.

2) After dispensing, the material will not be pushed. This system is controlled by PLC program, and all positions are confirmed through position confirmation to continue with the next action. In this case, please first confirm whether the corresponding sensor (magnetic switch) light of the previous action is on. If this light is on, the PLC input light will also be on. If it is on and there is no action, there is a possibility of failure of the solenoid valve and cylinder, and faults such as circuit paper breakage can be confirmed and eliminated one by one. If the magnetic switch light is not on, It is possible that the position adjustment is incorrect or the wire may be broken. If the magnetic switch is damaged and replaced, the fault can be eliminated.

3) Air leakage sound: If there is an air leakage sound when it is not working, it is also a sign of cylinder damage. Please confirm the leaking cylinders one by one and repair or update them to solve the problem.

4) When the solenoid valve (in manual or automatic mode) is powered off, the cylinder does not operate. At this time, if the manual test button of the solenoid valve is pressed manually and the cylinder operates, the coil will be damaged. If there is no action by hand, the valve body will be damaged. This problem can be updated and resolved.

Plc terminal block I/O table

X0 gluing cylinder upper limit Y0 gluing valve

X1 lifting upper limit      Y1 lifting valve

X2 Pushing rear limit     Y2 Pushing valve

X3 manual gluing         X6 travel switch

X4 manual lifting

X5 manual pushing      X7 manual/automatic