Material or article handling – Plural – static structures for supporting discrete loads and... – Load-underlying members
Patent
1997-06-11
2000-06-13
Olszewski, Robert P.
Material or article handling
Plural, static structures for supporting discrete loads and...
Load-underlying members
414802, B65G 100
Patent
active
060741554
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention pertains to a process and a device for handling and stacking pressed bales in a bale storage facility.
BACKGROUND OF THE INVENTION
It has been known in practice, especially in the area of pressed bales of textile fibers, that the pressed bales are transported by means of handcarts and are brought from the baling press to a storage facility and are stacked there in rows next to each other and one on top of another in a plurality of layers. A forklift truck is shown for this in DE-A-40 29 759. This technique is labor-intensive and error-prone if different pressed bales, which must be handled and stored separately, are produced in a pressing unit.
It has also been known that the pressed bales can be transported with a crane and a grab hanging on cables. The grab can grasp a single bale only and only from the top. In addition, the crane must have been absolutely stopped for this. The conveying capacity is appreciably limited by this.
High-shelf storage areas, in which the pressed bales are placed one by one into shelf compartments, have also been known in practice. The storage technique is very expensive, because it requires large space and great construction and control efforts.
SUMMARY AND OBJECTS OF THE INVENTION
The primary object of the present invention is to provide a better and more economical possibility for handling and stacking pressed bales.
According to the invention, a process is provided for handling and stacking pressed bales in a bale storage facility. The pressed bales are loaded into and removed from the bale storage facility with at least one multiaxially movable (movable in more than one of a plurality of orthogonal directions--movable in an x, y and z direction in a three dimensional space), automatic stacking device. The pressed bales are stacked up in stacks comprising a plurality of layers and are arranged in rows.
The device for handling and stacking pressed bales in a bale storage facility according to the invention includes at least one said stacking device with a traveling crane bridge, with a said bogie truck, and with a hanging-down guide beam. A grabbing means for one or more said pressed bales is guided on the guide beam vertically movably and rotatably around the vertical axis.
At least one stacking device, which is able to travel over the bale storage facility in the manner of a gantry and transport and stack up the bales with a hangingly guided grabbing means, is arranged in the bale storage facility. The stacking device is faster, more reliable in operation and more economical than the prior-art solutions. It saves manpower, especially if remote control is present.
To achieve the greatest possible mobility of the grabbing means, it is recommended that the guide beam hanging down be mounted rotatably, along with the grabbing means, on the bogie truck of the traveling crane bridge. To increase the velocity and the bale throughput, it is also favorable to equip the grabbing means with a plurality of forks, which is able to handle, e.g., a small stack consisting of three pressed bales.
Such a small stack fits the usual loading height of trucks or containers and makes possible a very rapid loading. The capacity of the stacking device can also be increased due to the small stacks. This is advantageous in light of the different time periods available for loading and unloading into and from the storage facility. The production and loading in the storage facility of the bales takes place day and night, seven days a week in automatic industrial plants. However, the removal of the bales from the storage facility and their shipping in containers or trucks may take place, e.g., during the day only and not on every day of the week, and it must be performed in a correspondingly shorter time. The crane and stacking capacity necessary for this is ensured by the handling of small stacks of three bales.
The stacking device according to the present invention makes it possible to store the bales in a very space-saving manner and to arrange the
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Robots dispense mixes at dye works, Materials Handling News, Jun. 1987.
Dipl.-Ing. Herbert Krippendorff, Dec. 1963, Das autoomatisierte Lager-Amerikanische Beispiele der Teil-und Voll-Automatisierung, Forderm und Heben, 13.
Autefa Maschinenfabrik GmbH
Hess Douglas
Olszewski Robert P.
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