What is the reason for the overheating of the slip shaft? Slip axis, as the name suggests, refers to sliding friction to reduce accumulated tolerances caused by uneven material thickness, thereby achieving an ideal constant value. However, in actual use, many of our customers have reported that their slip shaft heats up severely, or that the newly replaced wool felt breaks within a month, causing the airbag to leak.

So, we call this the excessive friction of the slip shaft that generates heat and wears out the airbag. And this phenomenon is abnormal, which can be caused by the following reasons:

The slip axis is ideal at the beginning of winding, but when it reaches a larger diameter, you will clearly see that the speed of the coil is significantly different from that of the axis, which means that the slip ring is constantly rubbing against the axis. This excessive friction will generate a large amount of heat, and in severe cases, it may even burn your hands.

If there is no uneven tension or deviation of the coil in the case of a large diameter, we need to adjust the speed ratio of the machine, usually 1:1.1, which is ideal and depends on the material used for winding.

Secondly, if there is uneven tension and deviation when going to a large roll diameter, the first thing to do is to increase the air pressure, because the tension required for a large roll diameter is relatively high. When the tension we provide is not high enough, there will be uneven tension and deviation, especially when it is very loose. At this time, it is necessary to increase the tension; On the contrary, if the tension is too high or too tight, causing serious deformation of the material, we should reduce the tension.

In short, whether it is increasing or decreasing the tension, our goal is only one, which is to adjust the slip axis to an ideal cutting and winding state.

The slip shaft heats up slightly under normal use. If the slip shaft feels hot or hot when touched by hand after winding the material, we need to identify the cause, whether it is the wrong speed ratio or the incorrect tension setting. Both factors need to be considered to find the problem and adjust the slip shaft to the ideal use state.