| 摘要 |
This invention has for an object a machine for making composite filters, comprising a combining unit (2) for combining groups (3) of filter sticks which have different filtering properties and whose length is variable from a minimum value to a maximum value; a first conveyor (4) and a second conveyor (7) equipped with a plurality of second carrier assemblies (8), each having at least one second hold-down seat (9) which can describe a circle whose radius varies from a minimum to a maximum with variation of the length of the groups (3) of filter sticks; a transfer unit (13) interposed between the first and the second conveyor (4, 7), the transfer unit (13) comprising a first, cylindrical splined roller (14) and a second, tapered splined roller (15) which is inclined and tangent to the first, cylindrical roller (14); the transfer unit (13) comprises adapter means (16) capable of adapting the transfer unit (13) to variations of the length of the groups (3) of filter sticks, allowing the axis (15a) of the second, tapered roller (15) to be kept fixed while varying the position of the axis (14a) of the first, cylindrical roller (14) relative to the transfer unit (13). |
