What is the problem if the screw packaging machine is not pulling the bag?

First, check if the fuse is faulty. Then, check if the relay is faulty. You can use a multimeter to test this, or you can use a voltage tester as an alternative. If everything is fine with the fuse and relay, check if the heating rod wire is loose or detached. If everything is secure, measure the resistance of the heating rod wire. If the resistance is too high, it means the heating rod is damaged.

The packaging material may have joints or excessive burrs, which can cause the paper-supplying motor to not rotate properly. The proximity switch may be damaged, and there may be poor electrical connections in the circuit. The main motor may be reversing. To solve this issue, remove any defective paper segments, replace the proximity switch, repair the circuit, and make sure the main motor's wiring is properly phased.

This is a common issue that customers often encounter. First, check if the temperature has reached the sealing temperature for packaging. If the temperature is correct, then inspect the pressure of the material clamping device. If both of these are not the issue, it may be due to the mold teeth not properly engaging or an imbalance in the pressure on the left and right sides.

This situation may be caused by an issue with the photoelectric sensor. First, check if the sensor is able to scan the markings on the film when it is in motion. Verify if there are any obstructions or debris covering the sensor, and ensure that the sensitivity is properly adjusted. Also, check if there are any color variations on the film that may be affecting the sensor's recognition. If none of these issues are present, try using a different packaging film as a test.