| 摘要 |
<p>PURPOSE:To provide a safe and simple grinder capable of certainly and finely grinding a glass bottle, a mineral or rock. CONSTITUTION:A grinder has a pair of eccentric rollers 20 having a large number of projections 21 provided to the peripheral surfaces thereof and rotated so that the opposed peripheral surfaces thereof are directed downwardly from above, a guide cylinder 70 guiding an article to be ground such as a glass bottle 60 to the gap between a pair of the eccentric rolls 20 and two pairs of rotary rolls 40 being re-grinding rolls arranged under the eccentric rolls 20 having a large number of projections 41 provided to the peripheral surfaces thereof and rotated so that the opposed peripheral surfaces thereof are directed downwardly from above. Further, the hoppers 30 guiding the ground pieces ground by the eccentric rolls 20 to the gaps between two pairs of the re-grinding rolls 40 are provided and a ground piece receiving part 10 is provided under the re-grinding rolls 40.</p> |
