| 摘要 |
A roll forming machine picks up crop material and forms, twine wraps and discharge rolls or large round bales thereof as the machine is continuously moving across the field. The machine has a mobile frame supporting a pickup and a floor, the latter supporting a lower conveyor. A front upper apron is supported by the frame above a rear portion of the lower conveyor and floor and defines a rear roll forming region therewith. Also, rear upper apron is supported by the frame above a rear portion of the lower conveyor and floor and defines a rear roll forming region therewith. Also, drive means is provided for moving the pickup and lower conveyor and also for moving the upper aprons each in a direction opposite to that in which the lower conveyor is moved for performing roll forming operations at the front and rear regions. Further, a twine wrapping mechanism is supported by the frame above the lower conveyor and between the front and rear upper aprons and is operable for twine wrapping a roll formed at the rear region of the machine.
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