| 摘要 |
The invention describes an apparatus for wrapping bales of fodder particularly large rectangular or square bales (9) of fodder with a strip of wrapping material and comprises a support platform (4), conveying means supported on the platform for supporting the bale (9) and rotating the bale about a substantially horizontal axis and means (20) for continuously supplying a strip of wrapping material to the bale as the bale is turned through said axis to wrap the wrapping material around the bale. The conveying means includes a conveyor belt (12) rotatable about two substantially parallel rollers (10, 11) extending transversely of the support platform and located at one end and at the opposite end respectively of the support platform (4), such that the rollers are spaced above the platform, and the conveyor belt is suspended from the rollers and has a substantial sag which defines a cradle (17) to receive the bale. The rollers are each mounted for rotation at the upper end of a respective pair of upright arms (13, 14) with at leeast one pair of arms (13, 14) being pivotally attached to the platform (4) such that during movement of the belt about the rollers at least one of the rollers is free to pivot relative to the other to alter the depth of the sag in the conveyor belt (12) and to improve contact of the belt with the bale during rotation of the bale. Preferably, the two pairs of arms (13, 14) are pivotally mounted to the platform (4) and the roller (11). Cam means (50) is provided to limit the pivotal movement of one pair of arms (4) carried by the arms (14). Hydraulic dampening means (57) is provided to control the pivotal movement of the other arms (13) and the roller (10) carried by those arms (13). |
