An apparatus and method for processing a crop residue, which includes but is not limited to, destroying weed seeds present in the crop residue. The apparatus (10) comprises an elongate housing (12) having an inlet (20) for receiving crop residue N and an outlet (22) for discharging the crop residue. The apparatus (10) also has one or more rotors (24), (26) located in the elongate housing (12). Each rotor (24), (26) comprises a plurality of radially extending impact members (28a), (28b), (28c), (28d), (28e), (28f) which rotate with the one or more rotors (24), (26) and impact against the crop residue, so that lighter material of the crop residue is subjected to less impacts and denser material of the crop residue is subjected to relatively more impacts.

Systems and methods for a dual-blade agricultural grinder are disclosed. A dual blade grinder comprises a casing, a hopper, a cutting mechanism, a chute, and a display. The grinder is configured to cut a plant to a desired particle size. The casing is configured to provide rigid structural support for components of the grinder and provide a safety barrier between the user and the cutting mechanism. The hopper is configured to store and distribute a plant to the cutting mechanism. The cutting mechanism comprises a static blade with one or more serrated edges and one or more plain edges, a floating curved blade, and a particle screen. The display is configured to accept input from a user operating the grinder, and to control operational settings of the grinder. The grinder and its components may be comprised of a food-grade quality steel configured to resist bacterial growth.

An apparatus for trimming plant material includes a housing having at least one receptacle configured to removably receive at least one cutting reel system to rest unsecured therein. The housing includes a closeable lid having retention structure configured to operably secure the at least one cutting reel system in the at least one receptacle when the lid is closed. In some embodiments, the housing is further configured to removably receive a knife assembly to rest unsecured in the housing, and the retention structure of the closeable lid further includes a knife retention structure configured to operably secure the knife assembly in engagement with the at least one cutting reel system when the lid is closed.

Systems and methods for a dual-blade agricultural grinder are disclosed. A dual blade grinder comprises a casing, a hopper, a cutting mechanism, a chute, and a display. The grinder is configured to cut a plant to a desired particle size. The casing is configured to provide rigid structural support for components of the grinder and provide a safety barrier between the user and the cutting mechanism. The hopper is configured to store and distribute a plant to the cutting mechanism. The cutting mechanism comprises a static blade with one or more serrated edges and one or more plain edges, a floating curved blade, and a particle screen. The display is configured to accept input from a user operating the grinder, and to control operational settings of the grinder. The grinder and its components may be comprised of a food-grade quality steel configured to resist bacterial growth.

An apparatus for trimming plant material includes a rotatable tumbler through which the plant material is to be axially propagated while rotationally tumbling, and a plurality of cutting reel systems adjacent the tumbler. The plurality of cutting reel systems includes a first cutting reel system adjacent the tumbler, and a second cutting reel system adjacent a landing zone of the rotatable tumbler. The landing zone is an angular range about the axis of the tumbler within which plant material tends to land on the tumbler after tumbling through a central volume of the tumbler.

Disclosed is a straw crushing device capable of driving a sharpening structure, relating to the field of straw crushing. The straw crushing device includes a main housing, the main housing is internally provided with a crushing chamber and a suction chamber, a feeding nozzle is installed outside the main housing, and the feeding nozzle communicates with a feeding end of the crushing chamber. A spline transmission shaft is installed inside the main housing, and penetrates through the crushing chamber and the suction chamber. A driving motor is installed outside the main housing, and the driving motor is connected to the spline transmission shaft. A Y-shaped tool rest is installed on the spline transmission shaft, and the Y-shaped tool rest is located in the crushing chamber.

A cutter device for an agricultural harvester comprises a rotor with a plurality of tines, a knife that is adjustable between a cutting position and a non-cutting position, and a positioning device that controls movement of the knife. The positioning device is adjustable between (i) a first position in which it positions the knife in the cutting position, (ii) a second position in which it positions the knife in the non-cutting position, and (iii) a third position in which it is disengaged from the knife to allow movement of the knife independently of the positioning device. The positioning device is configured to engage the knife and prevent significant movement of the knife independently of the positioning device when the positioning device is in the first position and at intermediate positions between the first position and the second position.

A cutter device for an agricultural harvester, including: a rotor with a plurality of tines; a sub-assembly including a pivot shaft, a knife, and a first bottom plate located beneath the rotor in a working condition; a support frame; a positioning device mounted to the support frame, and a control mechanism mounted to the support frame. The sub-assembly is moveably mounted to the support frame and is arranged to move relative to the support frame in a lateral direction that is transverse to the forward moving direction of the cutter device between i) a working position in which the sub-assembly is aligned with the support frame in a manner that enables the knife to be engageable by the positioning device, and ii) a maintenance position in which the knife is laterally spaced apart from the positioning device and the sub-assembly protrudes laterally outwards from the support frame.

A cutter device for an agricultural harvester includes: a rotor with a plurality of tines, the rotor being rotatable to transfer agricultural crop along a feed path; a knife, the position of the knife being adjustable; a bottom plate located beneath the rotor, the feed path being located between the rotor and the bottom plate, and the bottom plate including an opening through which the knife extends when in a cutting position; a control mechanism including a control element which is movable between primary and secondary positions. The control element control movements of the knife between a first position in which the knife is in a cutting position in the feed path, a second position in which the knife is substantially out of the feed path in a non-cutting position, and a third position in which the knife is located at an intermediate position between the cutting and non-cutting positions.

An apparatus for trimming plant material includes a rotatable tumbler through which the plant material is to be axially propagated while rotationally tumbling, and a plurality of cutting reel systems adjacent the tumbler. The plurality of cutting reel systems includes a first cutting reel system adjacent the tumbler, and a second cutting reel system adjacent a landing zone of the rotatable tumbler. The landing zone is an angular range about the axis of the tumbler within which plant material tends to land on the tumbler after tumbling through a central volume of the tumbler.