| 摘要 |
A rubber kneading machine, comprising two rolls (1, 2) horizontally and closely disposed in vertical direction, speed reducers (16a, 16b) and variab le speed motors (15a, 15b) for variably rotating these rolls, a screw extruder (3) for supplying rubber lumps charged into a hopper (4) at a base end betwe en the rolls, a rubber circulating mechanism having a scraper (33) and a belt conveyor (34) or a belt conveyor (35) over the upper roll (1) for feeding a rubber sheet delivered from the rolls (1, 2) to the hopper (4), and a screw extruder (3) opening mechanism to open and expose the inside of the closed part of a rubber feeding mechanism for facilitating cleaning, whereby a work er must not bring a rotating roll surface into contact with rubber for rubber kneading operation, unmanned operation is also allowed substantially safely, a productivity can be increased in a rubber kneading process, the quality of kneaded rubber can be stably assured, and the rubber feeding mechanism of closed structure can be easily opened and exposed for facilitated cleaning.< /SDOAB>
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