| 摘要 |
<p>A net dispensing mechanism (20) for a round baler (10) is disclosed wherein a pair of pinch rolls (28, 29) are cooperable with a driven feed roll (27) to feed netting material (22) from a source of supply into the bale forming mechanism (15) of the round baler (10) so that finished round bales can be wrapped with an external layer of net (22) before being ejected from the baler (10). The pinch rolls (28, 29) are mounted on opposing sides of the feed roll (27) and are adjustable relative thereto to permit proper engagement of both pinch rolls (28, 29) with the feed roll (27) to allow proper feeding of net (22) therebetween. An overcenter linkage (43/57) is connected to the mechanism (41, 50) mounting the pinch rolls (28, 29) to effect a movement of the pinch rolls (28, 29) between engaged and disengaged positions for selectively permitting the threading of net (22) between the pinch rolls (28, 29) and the feed roll (27). One embodiment has both pinch rolls (28, 29) mounted on pivot arms (41) which are pivotally mounted on angularly adjustable eccentrics (45) to permit adjustment of the position of the pinch rolls (28, 29) relative to the feed roll (27). Another embodiment utilizes sliding mounting means (51) mounting one pinch roll (29) at a fixed position and pivotally mounting a second pinch roll (28) via pivot arms (53) to permit a clamping of the pinch rolls (28, 29) against the feed roll (27).</p> |
