| 摘要 |
PURPOSE:To provide an excretion grinding apparatus preventing the entanglement of foreign matter. CONSTITUTION:Two kinds of large and small cutters 29 are provided to the cutter part 31 of a grinding cutter 27 as a main cutter 29a and an auxiliary cutter 29b. The number of the blade parts 37 of the cutter 29 of each layer are set to two at a 180 deg. pitch and the blade parts 37 of the mutual cutters 29 are vertically arranged on one straight line. Therefore, the grinding capacity of excretion is slightly lowered but, since the interval between the tip parts of the main cutter 29a becomes wide, the generation of the entanglement of foreign matter is lowered to a large extent. |
