The present disclosure is generally related to an apparatus having cutter elements for destroying articles such as paper sheets and a mechanism for separating at least a sheet from a stack in a tray. The separation mechanism can be activated by rotation of the cutter elements. In one embodiment, the separation mechanism is provided in the form of a helical mechanism configured for insertion into the stack and to receive separated sheets from the stack in between its space(s) as it is rotated. The separated sheets can fall via gravity into the shredder mechanism. Optionally, a paper feed mechanism can feed separated paper to the cutter elements. The tray can include an edge to assist in directing separated paper towards the cutter elements. One or more staple picking support mechanisms can also be provided to assist in separating sheets from a stapled set of pages.

A sheet supply device, a shredding device, a web forming device, and a sheet recycling system enabling smoothly supplying sheets regardless of the size and type of the sheets, and reducing equipment size. The sheet supply device includes a tray having a support surface on which a sheet is placed; a supplier configured to feed the sheet placed on the support surface; and a discharger from which the sheet is discharged by operation of the supplier. The supplier has multiple rollers disposed separated in the feed direction of the sheet; a rotation driver configured to rotationally drive the multiple rollers; and a roller support supporting the rollers in a direction to and away from the support surface. The sheet placed on the support surface contacts at least one of the multiple rollers and is fed to the discharger by displacement of the roller support.

The present disclosure is generally related to an apparatus having cutter elements for destroying articles such as paper sheets and a mechanism for separating at least a sheet from a stack in a tray. The separation mechanism can be activated by rotation of the cutter elements. In one embodiment, the separation mechanism is provided in the form of a helical mechanism, such as a coil, configured for insertion into the stack and to receive separated sheets from the stack in between its space(s) as it is rotated. The separated sheets can fall via gravity into the shredder mechanism. Optionally, a paper feed mechanism can feed separated paper to the cutter elements. The tray can include an edge to assist in directing separated paper towards the cutter elements. One or more staple picking support mechanisms can also be provided to assist in separating sheets from a stapled set of pages.

The present disclosure is generally related to an apparatus having cutter elements for destroying articles such as paper sheets and a mechanism for separating at least a sheet from a stack in a tray. The separation mechanism can be activated by rotation of the cutter elements. In one embodiment, the separation mechanism is provided in the form of a helical mechanism configured for insertion into the stack and to receive separated sheets from the stack in between its space(s) as it is rotated. The separated sheets can fall via gravity into the shredder mechanism. Optionally, a paper feed mechanism can feed separated paper to the cutter elements. The tray can include an edge to assist in directing separated paper towards the cutter elements. One or more staple picking support mechanisms can also be provided to assist in separating sheets from a stapled set of pages.

A shredder includes a strip-cut shredding portion including paired disc-shaped multi-plate rotary cutters to be engaged with each other to shred paper in a strip-cut direction, and a cross-cut shredding portion including a fixed cutter and a spiral rotary cutter for further shredding strip-cut waste pieces discharged from the strip-cut shredding portion in a cross-cut direction, the shredder including an intermediate holding portion, between the strip-cut shredding portion and the cross-cut shredding portion, for feeding the strip-cut waste pieces to the cross-cut shredding portion while holding the strip-cut waste pieces. The intermediate holding portion includes paired rollers which have outer peripheral faces capable of coming into close contact with each other to pinch the strip-cut waste pieces, and which rotate in feed directions.

The present disclosure is generally related to an apparatus having cutter elements for destroying articles such as paper sheets and a mechanism for separating at least a sheet from a stack in a tray. A paper feed mechanism feeds paper that is separated from the stack by a stack separation mechanism to the cutter elements. The feed and separation mechanisms can be activated by rotation of the cutter elements. In one embodiment, the stack separation mechanism moves in an alternating manner between retracted and extended positions to disengage and engage and insert the stack to separate (with its edge) paper therefrom to feed to the feed mechanism for shredding. The paper stack separation mechanism can move in an non-undulating manner relative to the stack. A device for stripping stapled pages, a pivotable support plate, and pressure plate can also be used, as well as a number of sensors.

Provided is a crusher capable of omitting a device for feeding a pulp sheet from outside into inside of a casing or suppressing a driving force of this device to be small and an absorber-manufacturing device provided with the same. A pulp sheet (P) is guided to a contact position (m) where the pulp sheet (P) and crushing edges (9b) of a cutter (9) come into contact from a position upstream of a virtual line (L3) orthogonal to a tangent line (L2) of a rotational path (R1) of the crushing edges (9b) at the contact position (m) and passing through the contact position (m) in a rotational direction (Y2) by a guiding section (5a) provided in a casing (5) and configured to guide the pulp sheet (P) from outside into inside of the casing (5).

A raw material supply device includes a transport section that transports a raw material containing fibers and supplies the raw material to a processing section that processes the raw material, a stopper that blocks transport of a portion of the raw material transported by the transport section; and a controller that controls an operation of the stopper to adjust a supply amount of the raw material to the processing section. Further, it is preferable that the raw material supply device further includes a fixed-amount supply section that intermittently supplies the raw material transported by the transport section to the processing section by a first amount.

A document shredder is disclosed including a paper receptacle for receiving a load of paper and a shredding assembly. A metering assembly is interposed between the paper receptacle and the shredding assembly and is configured to separate a portion of the load of paper from the load of paper and permit the portion of the load of paper to move into the shredding assembly. The metering assembly may include a stop plate secured thereto and defining a lifting portion on a perimeter portion thereof. The lifting portion is configured to engage a lower edge of the portion of the load of paper upon rotation of the stop plate and lift the paper over the stop plate. The lifting portion may include a flange, which may be a portion of a cone, formed on a perimeter portion of the wheel and occupying a sector of the perimeter of less than 60 degrees.

The present disclosure is generally related to an apparatus having cutter elements for destroying articles such as paper sheets and a mechanism for separating at least a sheet from a stack in a tray. The separation mechanism can be activated by rotation of the cutter elements. In one embodiment, the separation mechanism is provided in the form of a helical mechanism configured for insertion into the stack and to receive separated sheets from the stack in between its space(s) as it is rotated. The separated sheets can fall via gravity into the shredder mechanism. Optionally, a paper feed mechanism can feed separated paper to the cutter elements. The tray can include an edge to assist in directing separated paper towards the cutter elements. One or more staple picking support mechanisms can also be provided to assist in separating sheets from a stapled set of pages.