DE-STACKING DEVICE FOR DE-STACKING LAYERS OF TRANSPORT PALLETS WITH OR WITHOUT INTERMEDIARY LAYERS

Abstract

A de-stacking device for layer de-stacking stacking layers from standard transport pallets which include a multi-layer stack of stacking layers arranged on top of each other, wherein an optional bending stiff spacer is arranged under each of the stacking layers, wherein the stacking layers are formed by a plurality of stable standing transport goods that are stackable and arranged adjacent to each other, the de-stacking device including a placement and separation table for a respective stacking layer that is removed from the stack of the transport pallet and includes or does not include the optional spacer; a transfer device for transferring the respective stacking layer that includes or does not include the optional spacer from the stack of the transport pallet onto the placement and separation table, wherein the placement and separation table includes a fixation device for the optional spacer.

Claims

1. A de-stacking device for layer de-stacking of stacking layers from standard transport pallets which include a multi-layer stack of stacking layers arranged on top of each other, wherein at least one spacer that is stiff against bending is arranged under at least one of the stacking layers, wherein the stacking layers are formed by a plurality of stable standing transport goods that are stackable and arranged adjacent to each other, the de-stacking device comprising: a placement and separation table for a respective stacking layer that is removed from the stack of the transport pallet and includes the at least one spacer; a transfer device for transferring the respective stacking layer that includes the at least one spacer from the stack of the transport pallet onto the placement and separation table, wherein the placement and separation table includes a fixation device for the at least one spacer, a displacement device for displacing the transport goods arranged on the at least one spacer from the placement and separation table to a transport band extracting the transport goods, an extraction device for extracting the at least one spacer from the placement and separation table, and a band conveying device for conveying transport goods that are not supported by the at least one spacer from the placement and separation table to the extraction conveyor.

2. The de-stacking device according to claim 1, wherein the fixation device includes a vacuum fixation device with a plurality of suction cavities.

3. The de-stacking device according to claim 1, wherein the band conveying device includes a plurality of conveyor belts that are arranged adjacent to each other and offset from each other.

4. The de-stacking device according to claim 1, wherein the extraction device is formed by a pivotably supported table top of the placement and separation table, wherein the pivotably supported table top supports the stacking layer that is transferred from the stack with the at least one spacer in a horizontal operating position, and wherein the pivotably supported table top is pivotable from the horizontal operating position into a vertical non-operating position to eject the at least one spacer in an empty condition.

5. The de-stacking device according to claim 4, wherein the fixation device and the band conveying device are integrated into the pivotably supported table top.

6. The de-stacking device according to claim 5, wherein the conveyor belt of the band conveying device protrudes beyond the table top and suction cavities of the vacuum fixation device are recessed between the conveyor belts or at an edge of the table top.

7. The de-stacking device according to claim 4, wherein the pivotable table top is configured divided and includes two pivotable table leaves.

8. The de-stacking device according to claim 1, wherein the displacement device includes a displacement bar that is supported in a linear manner.

9. The de-stacking device according to claim 1, wherein the displacement device includes a multiple axis system including plural linear guides and including a gripper system which supports the stacking layer with the at least one spacer so that the stacking layer with the at least one spacer is movable in three dimensions.

10. The de-stacking device according to claim 1, wherein the displacement device includes a pivot arm robot with a gripper system which supports the stacking layer with the at least one spacer in three dimensions.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The invention is subsequently described in more detail with reference to an embodiment illustrated in a drawing figure. Further details of the invention can be derived from the subsequent description of the embodiment in combination with the patent claims and the appended drawing figure, wherein:

[0020] FIG. 1 illustrates a de-stacking device according to the invention with a closed table top of the placement and separation table for layered de-stacking of stacked transport pallets in a perspective view;

[0021] FIG. 2 illustrates a blown up detail of the table top of FIG. 1;

[0022] FIG. 3 illustrates the de-stacking device of FIG. 1 in top view;

[0023] FIG. 4 illustrates a detail of the table top of FIG. 3; and

[0024] FIG. 5 illustrates the de-stacking device of FIG. 1 with open table top leaves in a perspective view.

DETAILED DESCRIPTION OF THE INVENTION

[0025] FIG. 1 illustrates a de-stacking device 1 for layered de-stacking of transport pallets not illustrated in FIGS. 1-3, wherein the transport pallets include a multi-layer stack of stacking layers that are arranged on top of one another under which a respective bending stiff spacer is optionally arranged. The non-illustrated stacking layers are formed by stable standing stackable transport goods that are arranged adjacent to each other. The de-stacking device 1 includes a placement and separation table 2 for a respective stacking layer removed from a top of a stack of the transport pallets with or without the spacer which stacking layer is transferred onto the placement and separation table by a transfer device that is not illustrated in FIGS. 1-3 for the stacking layer with or without the spacer of the stack of the transport pallet. The transfer device includes a pivot arm robot with a gripper system which moves the stacking layer with or without the spacer in three dimensions. The displacement device respectively places a stacking layer with or without the spacer on the placement and separation table 2. The placement and separation table 2 includes a fixation device 3 for the optional spacer at the placement and separation table 2.

[0026] Furthermore the placement and separation table includes a displacement device 4 for the transport goods that are arranged on the optional spacer and not illustrated in FIGS. 1-3 from the placement and separation table 2 to a conveyor belt 5 extracting the transport goods and a band conveyor device 6 for conveying transport goods that are not supported on an intermediary layer from the placement and separation table 2 to the extraction conveyor 5. The fixation device 3 which is advantageously configured as a vacuum fixation device and the band conveyor device 6 which is advantageously formed by a plurality of conveyor belts 7 that are arranged adjacent to each other with a distance there between are integrated into a pivotably supported table top 8 of the placement and separation table 2 which simultaneously forms the extraction device 9 for the optional spacer. The pivotable table top 8 is configured divided in the illustrated embodiment and includes two pivotable table top leaves 10 which are laterally linked at a frame 11 of the placement and separation table 2. The two table top leaves 10 which support the stacking layer with or without the spacer, which stacking layer is transferred from the stack in a horizontal closed operating position of the table top 8 are pivotable from a closed operating position into a vertical non-operating position to eject the empty spacer.

[0027] FIG. 2 illustrates an enlarged detail of the table top 8 of FIG. 1. This clearly shows that the fixation device 3 is configured as vacuum fixation device 3. The vacuum fixation device 3 thus includes a number of suction cavities 12 for providing a temporary fixation of the spacer of the stacking layer not illustrated in the drawing figure. The suction cavities 12 are not illustrated in FIG. 1 for reasons of clarity. The suction cavities 12 are shaped as slotted holes and are connected through vacuum channels integrated in the placement and separation table 2 that are not visible with a vacuum pump that is not visible either, wherein the provided vacuum cavities 12 are activatable or deactivatable by the device control through valves that are connected there between and not illustrated.

[0028] FIG. 3 illustrates de-stacking device 1 in top view. In this figure the vacuum cavities 12 are not illustrated for purposes of clarity like in FIG. 1. FIG. 3 and FIG. 4 which illustrates an enlarged detail of the table top 8 of FIG. 3 emphasize that the conveyor belts 7 and the suction cavities 12 are evenly distributed over the two table top leaves 10. The conveyor belts 7 protrude slightly beyond the table top 8 or the table top leaves 10, wherein the suction cavities 12 are recessed relative to the conveyor belts 7 in order to vacuum fixate the spacer at the table top 8. The conveyor belts 7 and the vacuum cavities 12 are recessed into the table top leaves 10. The suction cavities 12 are arranged at an edge of the table top 8 and in intermediary bars 13 of the table top leaves 10 wherein the intermediary bars are arranged between the conveyor belts 7. It is visible also here like in FIG. 1 that the conveying device 4 includes a displacement bar 14 that is supported in a linear manner wherein the displacement bar is illustrated in a starting position on a side of the placement and separation table 2 that is oriented away from the extraction conveyor 5. The displacement bar is movable at a distance from the table top 8 or the table top leaves 10 to the extraction conveyor 5 and back into the starting position. The displacement bar 14 is supported in a linear manner.

[0029] FIG. 5 illustrates the de-stacking device 1 in a perspective view, wherein the table top leaves 10 of the table top 8 of the placement and separation table 2 are partially open, this means pivoted in a direction of a vertical non-operating position. Thus, a longitudinal pass through gap 15 is formed between the table top leaves 10 wherein the longitudinal pass through gap expands continuously and the empty intermediary layer can drop downward through the longitudinal pass through gap.