① Make the material dry, if there is wet material, it will melt at the material mouth first, but the melting is not complete, so it will be squeezed there, and the dried material is easier to enter than the wet material.
② Reduce the temperature of the material inlet, even very low, such as 100 ℃, so that the material is not melted first, but is directly squeezed in, relying on the power of the screw instead of heat. The disadvantage of this method is that the material is made for a long time, and the damage to the screw is relatively large.
③ Enlarge the material inlet. If you are making this kind of material for a long time, you can cut the material inlet bigger. Of course, a large optical cut does not mean that more materials can be fed, and a mixing device can be installed, and you can refer to the production equipment of PS foam material.
④ Replace the disc of the motor, and increase the diameter of the rotating disc, so that the screw speed will be accelerated, and the material will be stirred in before it is dissolved. The disadvantage is that the screw is easy to stir, so you need to be more cautious. After the speed becomes faster, you need to increase the temperature in the heating zone behind, otherwise the screw will bear too much force.