Failure analysis of the sealing machine

Failure analysis of the sealing machine

Sealing machine is mainly used to package the items to be packaged, after decades of development, has become a complete range of packaging machinery products with perfect functions. Sealing machine can be divided into sealing machine without sealing material, sealing material sealing machine, and auxiliary sealing material sealing machine. According to the mechanical properties of the packaging material, there are two kinds of rigid container sealing machine and flexible container sealing device. Commonly used rigid container sealing machines are screw cap sealing machine, piping sealing machine, rolling sealing machine, pressure plug sealing machine, gland sealing machine, crimp sealing machine and so on. Different sealing machines can realize the sealing of different types of goods, and with the increase of sealing machine types, the application in the industry is becoming more and more extensive. In the process of using the sealing machine, we often encounter such and such failures, let's take a look at the common faults in the use of the sealing machine.

(1) The sealing is not firm, the cause of the failure is that the pressure of the cold-pressed rubber wheel is not suitable, the heat sealing speed is too fast, the heat sealing temperature is not enough, the quality of the heat sealing film is problematic, and the heat sealing temperature can be appropriately increased in this case, and then the heat sealing speed can be reduced, and the pressure of the cold-pressed rubber wheel can be increased at the same time.

(2) The temperature meter shows failure, the sealing temperature is out of control, the heat sealing temperature is not constant, the sealing place is either burned, or the sealing is not firm, the sealing is deformed, it is very ugly, the main reason for the failure is that the thermometer has been broken and must be repaired; In addition, the thermocoupler may also be broken and cannot properly transmit the induced temperature to the thermometer. Replace with the same model, the same specification of thermocoupler can be.

(3) The sealing machine stops and goes, the speed is inconsistent, the cause of the failure is mainly due to the fact that the shaft connection of the motor and the gearbox connection appear to fall off and relax, and the screws are re-tightened so that they all match, and the problem is solved.

(4) Irregular marks and bubbles appear at the sealing place, such failures are more common, mainly due to the uneven arrangement of uneven marks on the cold pressing rubber wheel, directly reflected in the packaging, so that there are more obvious marks at the sealing place, the equipment is used for a long time, the high temperature belt is attached to dust and plastic chips and other dirt, resulting in the high temperature belt is not smooth, uneven, so that the sealing is not uniformly heated, and bubbles appear after pressing the cold pressing wheel. Replace the cold-pressed rubber wheel, clean or replace the high-temperature tape to troubleshoot.