摘要 |
PURPOSE:To enhance a kneading degree, by mounting an elastic inner cylinder, which is interposed between a blade and the inner wall of an outer cylinder and extensible to the radius direction thereof, and a pump. CONSTITUTION:A blade 3 having a rotary shaft 2 in coaxial relation to the center axis of an outer cylinder 1 is received in the outer cylinder 1 and a rubbery inner cylinder 4 extensible to its radius direction is interposed between the blade 3 and the outer cylinder 1. The inner cylinder 4 is fixed to leading ends of plural projections 8 parallelly provided to the inner wall of the outer cylinder 1 along the peripheral direction thereof and piercing holes 9 for passing a pressure medium 7 are provided to the projections 8. The transfer pipe 10 of the pressure medium 7 is connected to the outer cylinder 1 and connected to a pump 11 and the pressure medium 7 is pressurized or reduced in pressure by the pump 11 to regulate the interval between the inner cylinder 4 and the blade 3. |