Abstract: A front end conveyor includes a frame having a first side and a second side, a lower deck and an upper deck. The lower deck includes a plurality of sheet supports, and upper portions of the sheet supports lie in a first plane. The upper deck includes a plurality of sheet guides that define with the sheet supports a sheet transport path through the front end conveyor. A chad wall extends transversely to the sheet transport direction and has a top edge located below the sheet transport path and a front surface facing in the upstream direction and a plurality of fingers projecting from the front surface in the upstream direction. The top edge of the chad wall is positioned relative to the sheet transport path such that hanging chads depending from the sheets will impact the chad wall.

Abstract: A front end conveyor includes a frame having a first side and a second side, a lower deck including a plurality of sheet supports and an upper deck including a plurality of sheet guides. Upper portions of the sheet supports lie in a first plane, and the plurality of sheet supports and the plurality of sheet guides define therebetween a sheet transport path for moving sheets in a sheet transport direction toward the downstream end of the front end conveyor. At least one helical brush is positioned at the sheet transport path and is configured to engage scrap material on the plurality of sheets. The conveyor also includes a drive configured to rotate the helical brush.

Abstract: A front end conveyor has an upstream end and a downstream end, a lower deck including a plurality of primary sheet supports and an upper deck including a plurality of sheet guides. Upper portions of the primary sheet supports lie in a first plane and the sheet supports and sheet guides define a sheet transport path for moving sheets in a sheet transport direction. A pivotable sheet support extends from an upstream end of the lower deck and has at least one surface lying in a second plane. The pivotable sheet support is pivotable from a first position in which the second plane forms a first angle with the first plane and a second position in which the second plane forms a second angle with the first plane, the second angle being different than the first angle.

Abstract: A bundle breaker has upstream and downstream breaking supports and first and second platens located above the breaking supports that are configured to be raised and lowered by actuators to selectively clamp a log between the platens and the breaking supports. A third actuator applies a shifting force to the downstream breaking support to shift an input end of the downstream breaking support relative to an output end of the upstream breaking support to break a second portion of the log from a first portion of the log. A controller controls the first actuator and the second actuator and the third actuator. Also, the controller is configured to stop or reduce the application of the shifting force in response to a determination that the second portion of the log has broken off the first portion of the log.

Abstract: A front end conveyor include a lower deck having a plurality of lower sheet supports, an upstream upper deck having an upstream end at the upstream end of the front end conveyor, a downstream end and a plurality of first upper sheet guides and a downstream upper deck having an upstream end, a downstream end at the downstream end of the front end conveyor, and a plurality of second upper sheet guides. The lower sheet supports and the upper sheet guides define a sheet transport path for moving sheets of material though the conveyor. The downstream end of the upstream upper deck and the upstream end of the downstream upper deck are independently pivotably mounted to the frame such that the upstream end of the upstream upper deck and the downstream end of the downstream upper deck shiftable toward and away from the lower deck.

Abstract: A load former includes a frame, a loading zone bounded on a first end by a stop wall having a stop surface lying in a plane and a rear wall at a rear side of the frame, and a cookie sheet slidably supported by the frame for travel along a path perpendicular to the plane. The path includes portions on first and second sides of the plane, and a portion of the cookie sheet in the second portion of the path defines a bottom of the loading zone. A platform extends over the first portion of the path, and a top wall is vertically spaced from the platform to define a storage space between the top wall and the platform. The storage space has a front opening so that it is accessible from the front of the load former.

Abstract: A layboy includes an upper belt section with a plurality of transversely spaced upper belts that extend in a longitudinal direction such that bottom portions of the upper belts lie in a first plane that defines an upper boundary of a transport path through the layboy and a lower belt section having a plurality of transversely spaced lower belts that extend in the longitudinal direction such that top portions of the lower belts lie in a second plane that defines an upper boundary of the transport path. The bottom portion of one of the top belts and/or the top portion of one of the bottom belts extends away from the transport path to define a gap in the transport path at which scrap moving through the layboy can fall out of the transport path.

Abstract: A bundle breaker includes upstream and downstream breaking supports, platens over the breaking supports and actuators for moving the platens toward and away from the breaking supports. Each of the platens includes a plurality of air bladders each having a bottom contact surface facing one of the breaking supports. The actuators move the platens to selectively clamp a log between the bottom contact surfaces of the air bladders and the breaking supports. A third actuator shifts an input end of the downstream breaking support relative to an output end of the upstream breaking support from a first position to a second position to break a first portion of the log from a second portion of the log.

Abstract: A bundle breaker has upstream and downstream breaking supports each having an input end and an output end. A first platen is located above the upstream breaking support, and a second platen is located above the downstream breaking support, and each platen has an actuator for moving the respective platen toward and away from the breaking supports to selectively clamp a log between the platens and the breaking supports. A third actuator is configured to apply a shifting force to the downstream breaking support to shift the input end of the downstream breaking support relative to the output end of the upstream breaking support from a first position toward a second position to break the second portion of the log from the first portion of the log. The first actuator and/or the second actuator and/or the third actuator includes at least one servo motor.

Abstract: A conveyor includes first and second support shafts and at least one belt supported between the first and second support shafts that has an upper load-carrying portion and a lower return portion. A first gear is connected to the first support shaft, a second gear is connected to the second support shaft and a drive chain or belt is supported by the first and second gears and has an upper run and a lower run. The upper run includes a tension control device for maintaining a tension on the upper run and the lower run includes an arrangement for displacing a portion of the lower run in order to rotate the first gear in a first direction and the second gear in a second direction opposite the first direction to increase a tension of the upper load carrying portion of the at least one belt. Also an associated method.

Abstract: A sheet stacking system includes a conveyor having a discharge end, a hopper at the discharge end configured to receive the sheets ejected from the discharge end and guide the sheets as they fall in a cascade path onto a platform associated with the hopper, the falling sheets forming a main stack on the platform, the hopper including a backstop facing the discharge end of the conveyor such that the sheets ejected from the discharge end impact against the backstop before forming the main stack, and a first accumulator having at least one first support extending through the backstop and shiftable from a retracted position to an extended position, the at least one first support being movable vertically relative to the backstop in the extended position from a raised location outside the cascade path to a lowered location in the cascade path.

Abstract: A conveyor includes a frame having first and second spaced frame elements having outer sides and facing inner sides, first and second drive rollers between the first and second frame elements, a flexible belt mounted on the first and second drive rollers, first and second drive wheels connected to the first and second drive rollers, and a drive operably connected to the first and second drive wheels and configured to drive the belt in a first direction and in a second direction opposite the first direction.

Abstract: A conveyor includes a frame having first and second spaced frame elements, first and second drive rollers between the frame elements, and a flexible belt mounted between the first and second drive rollers that has a load bearing portion and a return portion, the return portion extending between the first and second frame elements. The conveyor has a first end portion including the first drive roller, a second end portion including the second drive roller and a central portion including a midpoint between the first drive roller and the second drive roller, and the central portion of the conveyor includes a lift-table receiving space between the first drive roller and the second drive roller and between the first frame element and the second frame element, and the return portion of the belt extends between the load bearing portion and the lift-table-receiving space.

Abstract: A stacking apparatus includes a base, a main conveyor pivotably supported on the base that is pivotable between a first, lowered, position and a second, raised, position, an accumulator section downstream of a discharge end of the main conveyor for receiving articles from the main conveyor, where the accumulator section includes a support for supporting a stack of items fed to the accumulator section by the main conveyor. Also, at least one optical sensor detecting the presence of an object in the main conveyor travel path and at least one controller operatively connected to the main conveyor and the optical sensor, the at least one controller receiving signals from the optical sensor and controlling the main conveyor based on the signals and on the direction of movement of the main conveyor.

Abstract: A rotary die cut stacking system for use with a rotary die cutter having a rotary die configured to output die-cut sheets of material, the system including a stacker and a layboy for carrying die-cut sheets of material in a first direction from the die cutter to the stacker, wherein, the layboy has upper arms and lower arms defining a nip region therebetween for receiving the die-cut sheets, at least some of the upper arms and at least some of the lower arms being moveable transversely to the first direction, the layboy including at least one optical beam generator configured to direct an optical beam against a portion of the rotary die cutter so that a position of the arms relative to the rotary die can be determined based on the location of the optical beam on the portion of the rotary die cutter.

Abstract: A sheet stacking device includes a support frame, a conveyor and an accumulator at a discharge end of the conveyor, the accumulator having a plurality of elongate fingers, at least one of which includes a rack having teeth along a first side, a rotatable drive shaft extending in a width direction of the conveyor, a gear having teeth mounted on the drive shaft and operatively engaging the rack teeth, and a rotary actuator operably connected to the drive shaft, the rotary actuator rotating said drive shaft in a first and second directions to move an end of the elongate fingers toward and away from the conveyor discharge end of the conveyor. Also a method of operating the device.

Abstract: A device for stacking sheets includes a layboy, a transfer conveyor, a main conveyor, a diverting apparatus, and an accumulator. The main conveyor is pivotably mounted to a base to that it may be pivoted between an upper position and a lower position. The diverting apparatus has a plurality of diverting slats pivotably mounted to a support shaft so that the slats may be raised and lowered. When the main conveyor is in the upper position, the diverting slats are not activated, that is, they are not raised. Accordingly, when sheets are transferred along and discharged from the main conveyor, the trajectory of the sheets is basically the same as the angle of the conveyor. In contrast, when the main conveyor is in a lower position, the slats are raised. Accordingly, discharged sheets are diverted so that the trajectory of the sheets is different than the angle of the conveyor. The slats may be placed at any chosen angle.