From the above picture, it can be observed that there is a squeeze cylinder next to the left roller, its function is to make the two rollers elastic. If there is no squeeze cylinder, the two rollers are fixed, so it is very embarrassing to encounter difficult materials, such as extract powder, which will heat up and melt when pressed. With the extrusion cylinder, there is elasticity between the rollers. When making materials such as extract powder, assuming that the extrusion pressure is adjusted to 10 kg, the force of the feeding screw to force the material downward is greater than that of the extrusion cylinder. 10 kg, the roller with the extrusion cylinder on the left side will be pushed away, and the material will be compressed into sheets normally, and will not be over-pressed to cause overheating, then the phenomenon of pressure tracking will increase at this time.
The following figure is the working dynamic diagram of the driven axis.
(The real fluctuation is not so big)↓
Looking at the picture above, assuming that the extrusion pressure has been injected into the cylinder, the extrusion valve and the total pressure relief valve are now closed. At this time, if the driven shaft of the roller is pushed open, the hydraulic oil in the cylinder will definitely be compressed. Causes pressure tracking to rise.
