The wet wipes packaging machine has been used for a long time, especially in the case of continuous work and overload, and it is prone to some electrical and mechanical failures, such as: the sealing is not strong, the machine stops and goes, the fuse is blown when it is started, and a "squeak" is issued during operation. "Squeak" sound, temperature out of control, deformation and bending of the finished bag at the seal, bubbles or irregular marks at the sealer's mark, etc.

Combined with the practical experience of the wet wipes packaging machine, the causes of several failures are analyzed, the corresponding solutions are proposed, and the maintenance of the wet wipes packaging machine is expounded, hoping to be helpful to the enterprises and individuals who use the wet wipes packaging machine.

1. Inadequate sealing is one of the common faults of wet wipes packaging machines. A non-durable seal has three meanings:

①The seal of the packaging bag cannot be sealed;

②Under the pressure of the knife seal, although the mouth of the bag has been sealed, after a little squeezing or tearing, the seal cracks again;

③In the peeling test of the seals, half of the seals are firm and half of the seals are separated, so the sealing quality of the packaging bag is still unqualified, because the contents are easily squeezed and missed during storage and transportation. This often happens when the composite liner is OPP and blow-molded PE.

The main reasons for the failure of the wet wipes packaging machine are as follows:

(1) The heat sealing temperature is not enough. Usually, when the total thickness of the bag is 80-90 μm, the heat sealing temperature of the OPP lined composite bag should reach 170-180 °C; when the total thickness of the PE lined composite bag is 85-100 μm, the temperature should be controlled at 180 ~ 200℃. As the overall thickness of the bag increases, the heat sealing temperature must increase accordingly.

(2) The heat sealing speed is too fast, which is also related to the speed of the sealing machine. If the speed is too fast, the sealing part will be transported by the traction roller to the cold pressing part for cooling treatment, and then it can be heated, which naturally fails to meet the requirements of heat sealing quality.

(3) The pressure of the cold-pressed rubber tire is not suitable. There is a cold-pressed rubber tire on the top and bottom, and the pressure between the two should be moderate. When adjusting the pressure, simply clamp the spring.

(4) There is a problem with the quality of the heat-sealing film, and the sealing failure is also related to the quality of the heat-sealing film. If the corona treatment of the composite lining is uneven, the effect is not good, and it happens to appear at the seal, it must not be sealed. This situation is relatively rare, but when it occurs, the product is scrapped. Therefore, in the color printing and packaging industry, the next process supervises the last process. Once a quality problem is found, it is necessary to analyze the cause and solve it in time. Moisture and dirt in the seal can also cause seal instability. In short, to solve the first problem of weak seal, it is generally possible to appropriately increase the heat-sealing temperature, then reduce the heat-sealing speed, and at the same time increase the pressure of the cold-pressed rubber wheel.