Deere + Company

Nissim Mass

Henry Dennis Anstey

Yuval Lieber

Zvi Paz

Jean Viaud

Yuval Leiber

Kenneth Craig Phillips

Thomas Wilmer Myers

Ishai Doron

A large round baler is equipped with a net wrapping mechanism for wrapping a bale with net material that is wider that the width of the baling chamber so that the net material extends over the opposite ends of the bale. The baler has a baling chamber defined in part by a plurality of bale-forming belts mounted in side-by-side relationship on a plurality of belt support rolls extending between opposite sidewalls of the baling chamber. The net material is fed beneath the discharge gate of the baler to a crop inlet located between a lower front belt support roll carried by the discharge gate, the net being carried into the baling chamber by a fore-and-aft runs of the belts that extend between a lower rear and the lower front belt support roll, and carry the net along a guide surface defined by a plurality of channel members respectively located beneath the fore-and-aft runs of the belts. In order to ensure that the net material arrives at the baling chamber at width greater than that of the baling chamber, spiral rings are mounted at opposite ends of the lower rear belt support roll and spreader rings are mounted at the opposite ends of the lower front belt support rolls, the spiral rings being located outboard relative to the spreader rings, with a major portion of the spreader rings being located outboard of the opposite sidewalls of the baling chamber. In order to keep rogue or stray crop stems from interfering with the net material so as to prevent it from being spread to its full length and fed, shielding is provided inside the baling chamber at a location above the lower rear roll. Wrap around shields are provided to shield the spreader rings from crop that is delivered into the baling chamber and various other structures are provided for preventing the accumulation of rogue or stray crop in the vicinity of the spreader rings and other areas in the path of net travel.

Spreader ring aiding to spread wrap material to its full width before entering baling chamber of large round baler

Spiral ring at lower rear of baling chamber for effecting initial spreading of wrapping material being fed to baling chamber of large round baler

Structure for reliably feeding and spreading net wrap material, of a width greater than the width of a round baler chamber, so as to cover opposite end segments of a bale located in the chamber

Filler strip for preventing rogue crop from interfering with the feeding of wrapping material to baling chamber of large round baler

Spiral rings for spreading wrapping material at the lower rear bale-forming belt support roll of the discharge gate of a large round baler

An apparatus for wrapping net about bales formed in the baling chamber of a large round baler is arranged such that the net material supply roll is pressed directly against the driven wrap material feed roll by a pressure roll carried by a pair of transversely spaced lower arm portions of a lower arm section of a vertically swingable pressure arm assembly that also includes a separate, upper arm section. The force pressing the pressure roll against the supply roll originates with gas springs coupled to a linkage that is in turn coupled to transversely spaced upper arm portions of the upper arm section, these arm portions carrying respective force transfer rollers that engage respective intermediate sections of the lower arm portions. Associated with each lower arm portion is an inverted L-shaped bracket having a short leg pivotally mounted between the axis of the pressure roller and one end of a guide link which cooperates with the short bracket leg and the lower arm portion to form a four-bar linkage which acts to properly position retainer rolls, respectively mounted to the end of the long leg of each of the inverted L-shaped brackets, adjacent the periphery of the supply roll so as to prevent the supply roll from moving away from its desired location on the drive wrap material feed roll. The lower pair of arm portions are shaped for cradling a new roll of wrapping material when lowered to a loading position from which they may be raised to move the supply roll in engagement with the driven net feed roll. A guide structure is provided which cooperates with bale forming belts for conveying the wrapping material, once fed through the feed rolls, beneath the bale discharge gate and through the inlet of the baling chamber.

Large wrapping net roll pressure arm assembly serving also as a loading platform

A large round baler includes a net wrapping device mounted to the rear and bottom of the discharge gate of the baler. A spare roll of net material is stored above an active roll of net material which rests upon and is caused to be rotated by the upper roll of a pair of net material feed rolls. The rolls of material are wider than the baling chamber of the baler and net spreader rolls, including both raised spirals and spiral grooves, are provided along the net feed path so that the net is at its full width when it arrives at the inlet to the bale chamber which is located at a lower bale-forming belt support roll extending between opposite sidewalls of the gate at the lower front of the gate. A pair of guide plates are mounted to the insides of the bale chamber sidewalls and extend about an upper portion of the circumference of a net spreader rolls located at the opposite ends of the belt support roll. These guide plates are shaped and positioned such that they perform the functions of creating a space between the bale end and the side wall for receiving marginal portions of the net, defining together with the side walls, a channel which leads from the net spreader rolls to the space created for receiving the net, rounding the end edges of the bale for better reception of the marginal portions of the net and deflecting crop material away from the spirals of the net spreader rolls so as to prevent them from wrapping with crop which would interfere with the feeding of the marginal portions of the net to be placed over the edges or corners at the opposite ends of the bale. First and second alternate embodiments respectively have only the recess or the entire shape of inner surfaces of the guide plates formed into the sidewalls. In the latter case, openings are provided in the sidewalls adjacent the trailing part of the formed shape, as considered relative to the direction of rotation of a bale engaging the formed shape.

Large round baler having wrapping mechanism for placing net over edges

A large round baler is equipped with a wrapping device for wrapping a bale with a web of plastic net wrapping material. The device includes a pair of wrap material feed rolls arranged one above the other with a supply roll of wrapping material being directly supported by the upper feed roll so that during operation of the feed rolls in dispensing a length of wrap material being wrapped about a bale, the periphery of the supply roll is rotated at the same speed as the periphery of the upper feed roll so that no scrubbing takes place between the supply and feed rolls. A pressure applying device uses a pair of air or gas cylinders acting through a linkage to force a freely rotating roller to exert a force on the supply roll which is transferred through the roll to the feed roll. In this way variable friction forces are avoided which would interfere with the maintenance of a desired constant tension in the length of wrapping material so that the bale is wrapped tightly, but without rupturing the net material.

Large round baler net wrapping device for dispensing net from a supply

Growing community of inventors

Haemek, Israel

Nissim Mass