A method for operating a tray conveying apparatus, wherein a tray edge of a tray to be destacked is guided in contact with and along a support until the tray has been deposited on a conveying unit positioned therebelow. An apparatus for destacking and further conveying trays that may comprise a destacker for destacking trays, wherein the destacker may also comprise a frame for accommodating at least one tray stack and a plurality of destacking screws configured to be operated in a respective direction of rotation. Each destacking screw may comprise a helically configured spiral or groove with a support. A conveying unit may be positioned below the destacker and used for receiving and transporting the destacked trays from the destacker.

A tote accumulator includes stack retaining latches that are configured to be acted on by a cam and follower mechanism and additionally by a holding mechanism. The cam and follower mechanism is configured to act on the stack retaining latches when the stack of totes is moved vertically by a lifting member, to move the stack retaining latches into an active dwell wherein the stack retaining latches are engaged with the stack of totes. The holding mechanism is configured to be activated to extend the active dwell after the cam and follower mechanism ceases to act on the stack retaining latches. The active dwell is extended even further by a mechanical interlocking feature between the latches and the totes. In various implementations, the design of the cam and follower arrangement and the activation timing of the holding mechanism may be adapted to execute a stacking or an unstacking operation.

A hand includes a plurality of first gripping members which move relative to each other, a first drive unit configured to move the plurality of first gripping members in a first opening and closing direction to bring the plurality of first gripping members close to each other or separate them from each other, a plurality of second gripping members which move relative to each other independently from the plurality of first gripping members, a second drive unit configured to move the plurality of second gripping members in a second opening and closing direction to bring the plurality of second gripping members close to each other or separate them from each other, and a third drive unit configured to move the plurality of first gripping members relative to the plurality of second gripping members in a third direction intersecting the first and second opening and closing directions.

A hand includes a plurality of first gripping members which move relative to each other, a first drive unit configured to move the plurality of first gripping members in a first opening and closing direction to bring the plurality of first gripping members close to each other or separate them from each other, a plurality of second gripping members which move relative to each other independently from the plurality of first gripping members, a second drive unit configured to move the plurality of second gripping members in a second opening and closing direction to bring the plurality of second gripping members close to each other or separate them from each other, and a third drive unit configured to move the plurality of first gripping members relative to the plurality of second gripping members in a third direction intersecting the first and second opening and closing directions.

A destacker unit for a destacking system is for destacking objects with a flange that are stacked together, such as a stack of trays, containers, cups or other objects. A destacking system includes at least one destacker unit for repeated destacking of one tray at a time in a predetermined direction. A stack of objects each having a flange extending outwards along its perimeter may be destacked in a predetermined direction by rotational motion of the destacker unit. The destacker unit may include a wheel unit, having a threaded rotation axis, including: a lower surface for carrying the stacked objects, and an inclined member located above the lower surface and having an inclined upper surface and a bottom surface. The distance between the upper and bottom surface increases around at least a part of the periphery of the wheel unit. The thread orientation corresponds to the inclination of the surface.

This invention relates to an apparatus and a method for unstacking preformed products (2), for example packaging units, stacked in a stack, these products comprising for example planar parts (4) and projecting parts (3) which are all stacked onto and into each other in line, wherein the method comprises, placing a gripper with at least a single suction cup unit (51) of flexible material, more particularly a suction mouth thereof, on a planar product part (4) of such a product, suction-engaging such a product, conveying the product to a delivery location, andreleasing the product, wherein upon suction the planar product part (4) is pulled against a plate (55) which is part of the apparatus. It has been found that in this way in a suitable manner stacks of flexible and thin-walled packaging units can be unstacked, without the stack being disturbed or the packaging unit taken off being damaged or being picked up in the wrong position.

This invention relates to an apparatus and a method for unstacking preformed products (2), for example packaging units, stacked in a stack, these products comprising for example planar parts (4) and projecting parts (3) which are all stacked onto and into each other in line, wherein the method comprises, placing a gripper with at least a single suction cup unit (51) of flexible material, more particularly a suction mouth thereof, on a planar product part (4) of such a product, suction-engaging such a product, conveying the product to a delivery location, andreleasing the product, wherein upon suction the planar product part (4) is pulled against a plate (55) which is part of the apparatus. It has been found that in this way in a suitable manner stacks of flexible and thin-walled packaging units can be unstacked, without the stack being disturbed or the packaging unit taken off being damaged or being picked up in the wrong position.

Embodiments herein describe a tote dispenser that removes the bottom tote from as stack of totes which is then ejected by a conveyor belt. In one embodiment, the tote dispenser includes a first pair of support members which support all but the bottom tote in the stack, while a second pair of support members applies a force that removes the bottom tote from the stack. The first and second pairs of support members can be disengaged so that the stack of totes can be realigned relative to the support members so that the next tote at the bottom of the stack can be removed.

Embodiments herein describe a tote dispenser that removes the bottom tote from as stack of totes which is then ejected by a conveyor belt. In one embodiment, the tote dispenser includes a first pair of support members which support all but the bottom tote in the stack, while a second pair of support members applies a force that removes the bottom tote from the stack. The first and second pairs of support members can be disengaged so that the stack of totes can be realigned relative to the support members so that the next tote at the bottom of the stack can be removed.

A dispensing device for dispensing lids from a stack of nested lids, including a magazine containing a stack; a denesting unit arranged at a bottom of the magazine to detach lids from the stack bottom; and denesting rollers each of which has a lower shelf, a first upper shelf above a bottom shelf, and a second upper shelf above the first upper shelf. Some of the rollers comprise a first separator, and other denesting rollers comprise at least a second separator. The rollers are rotatable between a rest position in which the stack rests on the lower shelves; a single release position in which the first separators engage the stack to detach the last item from the stack bottom; and said rest position and a multiple release position in which the second separators engage the stack to detach at least the last two items from the stack bottom.