Abstract:
A system for controlling a braking mechanism for a supply roll with wrapping material for a round baler that passes through a first phase wherein, after detection of sufficient crop material in the baling chamber, wrapping material is brought up to the baling chamber and introduced into the baling chamber. The braking mechanism provides a higher braking force during the wrapping operation than the first phase. The wrapping operation is started on detection of movement in the wrapping material. This prevents the braking mechanism from being activated prematurely and leaves sufficient time to deactivate the braking mechanism after the wrapping operation.
Abstract:
A web wrap apparatus is provided in conjunction with a round baler. The web wrap apparatus has a feeder, a separator for the web, and a motion means. An actuator is provided at the motion means, which assists the separator in cutting the web, when the separator gets close to a cutting position.
Abstract:
A method for controlling a braking mechanism for a supply roll with wrapping material for a round baler that passes through a first phase wherein, after detection of sufficient crop material in the baling chamber, wrapping material is brought up to the baling chamber and introduced into the baling chamber. The braking mechanism provides a higher braking force during the wrapping operation than the first phase. The wrapping operation is started on detection of movement in the wrapping material. This prevents the braking mechanism from being activated prematurely and leaves sufficient time to deactivate the braking mechanism after the wrapping operation.
Abstract:
A round baler is disclosed having a bale forming chamber. A duck bill, which comprises a pair of elongate plates that are biased towards one another to grip the wrapping material between them, is movable between an advanced position and a retracted position to introduce the free end of a wrapping material drawn from a supply roll into the bale forming chamber of the baler. A cutting device is located between the retracted position of the duck bill and the bale forming position for severing the length of wrapping material wrapped around the bale in the bale forming chamber at the end of a bale wrapping cycle from the supply roll. In the invention, a clamping device is provided to apply an additional force to urge the plates of the duck bill towards one another while the duck bill is in the retracted position in order for the wrapping material to be gripped more firmly between the plates of the duck bill between bale wrapping cycles.
Abstract:
A wrapping material indicator arrangement for a wrapping machine, in particular a rotobaler. The indicator is supported on the circumference of a wrapping material roll, from which wrapping material is withdrawn during a wrapping operation. A rotating counter roll, pressed against the wrapping material roll, drives a rotating wheel mounted on an arm that allows the wheel to translate through an arc. The translation of the wheel and arm indicates the amount of wrapping material left on the wrapping material roll and its rotation allows an operator to monitor the operation of the rotobaler for malfunctions during the wrapping operation.
Abstract:
Providing in conjunction with a large round baler is a wrapping arrangement for enveloping a large round bale with an enveloping material. The wrapping arrangement includes a propulsion element, preferably a propulsion roll, that withdraws the enveloping material from a supply, preferably in the form of a roll, and a clutch arrangement effectively connected to the propulsion element. The clutch arrangement is arranged to maintain the force acting upon the enveloping material generally at a constant level once the enveloping material is grasped by the bale during the wrapping process.
Abstract:
A baler having an inlet area for receiving netwrap wherein it is a short distance between the drum roller and the closest belt roller. The netwrap guide at bottom of baler includes a feed pan having flexible net guides that are narrower than the bale forming belts. This netwrap guide has supporting cross members underneath it but there are no cross members in close vicinity to the lower belt roller to keep excess crop from accumulating there. There is also a netwrap guide at front of the baler for feeding netwrap material into contact with the periphery of a formed bale, including a guide positioned generally above the pickup for directing crop material previously inserted into the bale formation chamber and the netwrap material away from the pickup. The baler also has a novel netwrap feeding and cutting mechanism.
Abstract:
A wrapping material indicator arrangement for a wrapping machine, in particular a rotobaler. The indicator is supported on the circumference of a wrapping material roll, from which wrapping material is withdrawn during a wrapping operation. A rotating counter roll, pressed against the wrapping material roll, drives a rotating wheel mounted on an arm that allows the wheel to translate through an arc. The translation of the wheel and arm indicates the amount of wrapping material left on the wrapping material roll and its rotation allows an operator to monitor the operation of the rotobaler for malfunctions during the wrapping operation.
Abstract:
A large round baler is equipped with a net wrap feeding mechanism mounted to the rear and bottom of the bale discharge gate. The feeding mechanism includes upper and lower feed rolls, with the lower roll being located closer to the discharge gate than the lower roll and, the pair of rolls thus being arranged to deliver wrapping material against an upright run of bale forming belts, the latter acting to carry the net to a pinch point formed between the belts, where they pass around a lower rear belt support roll, and a guide pan of a net material guide assembly that extends beneath and adjacent a lower run of the belts. A net wrap material cut-off device includes a fixed knife blade located forwardly of and extending parallel to the lower feed roll. The cut-off device further includes a pair of transversely spaced cut-off arms between which extend and to which are fixed an anvil. The arms are mounted for pivoting between a raised standby position, wherein the anvil is located adjacent the upper feed roll and a lowered cut-off position, wherein the anvil is engaged with the knife blade. A row of bristles is located between the lower feed roll and the knife blade at a position where it acts to strip the lower roll of net material having a tendency to wrap about the lower roll and to entangle the net material as the latter is brought against the bristles during severing of the net material tensioned between the feed rolls and the pinch point after a bale has been wrapped. The entangled net material results in the leading end of the net material becoming folded back on itself at the beginning of the next wrapping cycle, such doubling together with the operation of spreader rolls acting to deliver the net material to the baling chamber at its full width.
Abstract:
A large round baler is provided with a wrapping arrangement which supplies wrapping material to a baling chamber inlet at a location above the floor of a baling chamber. The wrapping arrangement includes a wrapping material supply roll positioned at, or in frictional contact with, a feed roll, which conveys the wrapping material and delivers it such that it gravitates downwardly through a gap provided between an anvil and movable part of a cut-off device, the cut-off device being located at the inlet to the baling chamber so that the gravitating material passes into the baling chamber where it is caught between the formed bale and a rotatable bale-forming device which delimits at least a portion of the circumference of the baling chamber.