| 摘要 |
A roller mixer for rubber is described, which comprises a pair of rollers for mixing the compound fed from a blending station such as a Banbury-type mixer. The mixer of the invention has a completely automatically operating cycle, as it is provided witn means suitable to eliminate all the manual operations, which are necessary in the conventional mixers, in order to cut the runner tape in strips of pre-established width, which have to be brought, before their discharge, to a cooling station and to a homogenising station associated to the mixer. The mixer in question makes also possible to cool the compound of rubber much more efficiently with great technological advantages. The mixer comprises the following devices, placed along the processing path of the rubber, which are operated in succession by a programmer: rubber tape cutting means (8) to form strips of pre-established width, means (18) for detaching said strip from one of the mixer rollers (3), and means (29, 40, 49) for conveying said strip of rubber until locating its end at the inlet of the homogenising device (50). Further cutting means (34) are provided in order to cut the end portion of the strip of rubber when it is conveyed to the cooling station at the end of the process. |
