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Analysis of common failures of hardware packing machine

Nov 06, 2021

1. The packaging material is broken

Reason: There are joints in the packaging material, and the burr paper feed motor with too large breakage does not rotate. The proximity switch is damaged. The line is in poor contact. Main motor reverse

Treatment method: remove the unqualified paper section, replace the proximity switch, repair the circuit, and commutate the main motor wiring

2. Lax heat sealing

Reason: The temperature is low, the two heat sealers are not flat, the pressure is uneven, and the packaging film composite layer is uneven

Treatment method: adjust the temperature or check whether the electric heating tube is disconnected, replace it

3. Do not pull the bag

Reason: The initial bag pull switch has no response. The trigger distance is not enough. The non-contact switch is broken.

Processing method: check whether there is a signal output by the contactless contact, and under the verification "status", observe the change of PX2 height and adjust its trigger distance

4. After the bag is pulled, it will stop when there is a failure

Reason: The color mark is not adjusted properly and the color mark is not detected

Processing method: adjust photoelectric

5. Shutdown occurs

Reason: no paper

Treatment method: supply packaging film

6. Temperature control indication jump

Reason: the thermocouple is broken and the contact is poor

Treatment method: replace the fastenable thermocouple

7. The temperature control indicator does not heat up

Reason: the electric heating tube is burned out or the fuse is blown

Treatment method: replace electric heating tube or fuse

8. The knife keeps on cutting

Reason: The cutter is not flat, the pressure of the cutter spring is not enough, and the cutter is worn.

Treatment method: adjust the trimming knife or replace

9. The bag is stuck above the cutter

Reason: the timing of pulling the bag is not correct, and the position of the upper bag board is not correct

Processing method: adjust the timing of pulling the bag, pull the bag when the cutter is fully opened, and adjust the position of the bag stopper

10. The paper feed motor keeps rotating

Reason: non-contact switch, the distance is too large, the paper feed lever is jammed, or the return is not in place

11. The machine does not start

Reason: the fuse is blown, the main power switch is not turned on, and the emergency stop switch is not reset

Solution: Replace the insurance. Check the main power switch. Emergency stop switch reset

12. Material clamping and sealing channel for liquid machine

Reason: The bag is small and large, the filling time is wrong, the outlet of the material tube is upward or downward, and the withdrawal is not enough

Processing method: adjust the weight, adjust the filling timing, adjust the height of the material tube

13. The weight jumps after the filling amount of the powder machine is quantified, and the set value jumps.

Reason: the speed does not match the measurement amount, the machine automatically jumps to the measurement

Treatment method: reset the filling setting value
hardware packing machine