The present invention discloses an automatic paper feeding method for a paper shredder and a paper shredder, including a step of disposing paper, a step of pressing paper, a step of automatically feeding paper continuously, and a step of shredding paper. The paper sheets to be shredded entering the automatic paper feeding channel are superimposed partially; the paper disposing mechanism and the automatic paper feeding channel of the paper shredder are located at two sides of the paper rolling device respectively; the paper rolling device is located at least at the position above the lower end portion of the paper disposing area/paper sheets to be shredded. In the present invention, the paper sheets to be shredded conveyed to the automatic paper feeding channel are superimposed partially; during shredding, the shredding cutter shreds a plurality of paper sheets to be shredded at a time, with a higher feed speed and an increased shred speed. Besides, the automatic feed speed can be adjusted. The present invention has an intelligent paper feeding function, which effectively prevents the overload during the automatic paper feeding and the automatic shredding.

Apparatus, systems (including solvent or enzyme), and methods of degrading plastic are described. Plastic waste is stretched in the presence of solvent. The surface may be further treated to increase hydrophilicity. The resulting plastics can be treated with plastic-degrading enzyme either with microorganisms or direct application of enzyme.

An infeed system of a chipper or grinder includes a feed roller, a motor for rotating the roller, a hydraulic cylinder for adjusting an amount of crush force applied by the roller, a sensor, and a controller in data communication with the sensor and the cylinder. In operation, the controller determines whether the material is being effectively moved to the processing portion and whether the amount of crush force is at a maximum or lowest setting. The controller causes the cylinder to: (a) decrease the amount of crush force when the material is being effectively moved to the processing portion and the amount of crush force applied is not at the lowest setting; and (b) increase the amount of crush force when the material is not being effectively moved to the processing portion and the amount of crush force is not at the maximum setting.

A waste processing machine for reducing waste material and having a safety device for shearing lines. A housing defines a cutting chamber and an intake opening in communication with the cutting chamber for receiving waste material. A disc is disposed in the cutting chamber, rotates about an axis, and has an axial surface facing the intake opening. A cutting member is fixed to the disc for revolution about the axis concurrent with rotation of the disc for reducing waste material. A cutting anvil is coupled to the housing adjacent to the intake opening and faces the axial surface of the disc for reducing waste material between the cutting anvil and the cutting member. A line shear element is attached to the housing, extends into the cutting chamber toward the axial surface of the disc, and is spaced from the cutting anvil for shearing lines caught by the rotating disc.

An apparatus for processing a rope formed in a pulper, comprising a conveying mechanism, in particular a winch, for pulling the rope, with the forward end first, out of the pulper, is characterized in that the conveying mechanism is positioned and designed in such a way that the rope can be fed, with the forward end first, directly to a shredder by the conveying mechanism.

A safety device for a waste processing system having a powered cutting system including a rotor rotatably mounted within a housing is disclosed wherein the improvement relates to a safety device which includes a first safety device disposed within the housing, spaced from the rotor and thereby defining a first gap therebetween through which a cable that has been captured by the rotor assembly is automatically cleaved when disposed between the first safety device and rotor assembly.

A flywheel and paddle assembly for a chipping or shredding apparatus, including a wood chipper, a brush chipper, and a leaf shredder. The assembly has a flywheel attached coaxially to a drive shaft. The flywheel has at least one aperture extending from the front side to the back side, and carries at least one knife adjacent to the at least one aperture. The knife presents a knife edge on the front side of the flywheel. A paddle is rotatably mounted coaxially to the drive shaft adjacent to the back side of the flywheel. The paddle is configured to rotate on the drive shaft independently of the flywheel. A chipping or shredding apparatus incorporating the aforesaid flywheel and paddle assembly is also disclosed.

Provided is a sheet processing device able to suppress consumption of sheets. The sheet processing device has a supply device that supplies sheets; an image acquisition device that acquires an image of a sheet supplied from the supply device; a first decision device that determines whether or not the sheet can be reused based on the image of the sheet acquired by the image acquisition device; and an inverter configured to discharge the sheet without reversing the first side and second side of the sheet when the first decision device determines that the first side of the sheet can be reused, and reverses the first side and second side of the sheet and then discharges the sheet when the first decision device determines that the second side of the sheet can be reused.

A chopping unit (10) of a forage harvester, having a chopping drum (11) bearing chopping blades (15), having a shear bar carrier (17) bearing a shear bar (16) for the chopping blades (15), wherein a top side (20), facing away from the shear bar carrier (17), of the shear bar (16) provides a cutting edge (21) of the shear bar (16), wherein the top side (20) of the shear bar (16) is contoured such that the top side (20) of the shear bar (16) is inclined, at least in a top-side portion (26) facing the chopping drum (11), continuously in the direction of the chopping drum (11) in the contact region with the chopping blades, as seen in the axial direction of the chopping drum (11).

An image forming apparatus has a scanning apparatus. The scanning apparatus has a control panel to enter operating instructions to the image forming apparatus to scan and store a document or scan, store and shred the document. The scanning apparatus has a feeding mechanism. A scanning mechanism is coupled to the feeding mechanism scanning and storing the document placed within the feeding mechanism. A shredding apparatus is coupled to the scanning apparatus. The shredding apparatus has a housing. A shredding feed mechanism is coupled to the scanning apparatus feeding the document from the scanning apparatus into the shredding apparatus when scan, store and shred is selected on the control panel. A cutting mechanism is in communication with the shredding feed mechanism shredding the document when scan, store and shred is selected on the control panel.