JPH11334807A - Device for carrying in and carrying out for automated storage and retrieval system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that a conventional device for carrying in and out needs to conveying devices resulting in an excessive installation and high cost. SOLUTION: An automated storage and retrieval system has a rack 10 having a number of housing shelves 11 and a stacker crane 8 for housing running along a rack for carrying in and out an article to be housed to a proper housing shelf of the rack 10. In this automated storage and retrieval system, a conveying device 6 for carrying in and out for carrying in and out the article to be housed to the stacker crane 1 running directly to the rack 10 is provided at each stacker crane for housing in one layer or a plural layers, and a floor carrying in and out conveying device 3 is also provided on a parallel with the running lane of the stacker crane 1 for carrying in and out which carries in and out the article to be housed from the stacker crane for carrying in and out 1 to each floor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic warehouse loading / unloading apparatus for loading or unloading a storage item into or from a predetermined storage shelf of a rack by a storage stacker crane.

[0002]

2. Description of the Related Art A conventional automatic warehouse entry / exit device will be described with reference to FIG. As shown in FIG. 3, the loading of the stored items from the loading / unloading station 20 to the storage stacker crane 8 and the transporting of the stored items from the storage stacker crane 8 to the loading / unloading storage station 20 are performed by the carriage 21 with the conveyor. This is performed by a plurality of incoming conveyors 22 and outgoing conveyors 23 that extend orthogonally to the carriages 21 with transport conveyors and extend to the rack 10 side. As described above, in the automatic warehouse entry / exit device, the stored items are transported from the entry / exit station 20 to the respective entry conveyors 22 by the transport conveyor-equipped trolley 21, and are transported to the storage stacker crane 8 by the entry / exit conveyor 22. In addition, the articles carried out of the storage shelves 11 of the racks 10 by the storage stacker crane 8 are conveyed to the carriages 21 with the conveyors by the respective outgoing conveyors 23, and the carriages 21 with the conveyors 21.
To the loading / unloading station 20.

When it is necessary to install the loading / unloading stations 20 on a plurality of levels, a loading / unloading transport line composed of the loading / unloading station 20, the transport carriage 21, the loading / unloading conveyor 22, and the loading / unloading conveyor 23 is required for each level.

[0004]

In the above-mentioned conventional storage and retrieval apparatus for an automatic warehouse, it is necessary to set up a storage and retrieval transport line for each level, and to store the stored items in the same storage stacker crane at the same level. When the storage stacker crane occurs, the storage stacker crane performs an operation of storing the incoming storage items on a predetermined shelf and then unloading the storage items from the predetermined shelf. In order to prevent the trolley with an in-and-out conveyor from being in a standby state during the in-and-out operation of the warehousing and unloading, two transport devices, an in-feed conveyor and an out-feed conveyor, extending to each rack side as in the above-described conventional device, are used. It has to be provided for each layer, and there is a problem that excess facilities are required.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and comprises a multi-row, multi-stage rack having a large number of storage shelves, running along the racks, and loading the stored objects into predetermined rack storage shelves. Or, in an automatic warehouse equipped with a storage stacker crane for unloading, a storage and unloading transfer device that loads or unloads stored items to and from a storage stacker crane that runs perpendicular to the rack extends to the end of the rack and stores it. A floor entry / exit transfer device is provided for each stacker crane for one or more levels, and is installed in parallel with the traveling path of the entry / exit stacker crane to load or unload items from the entry / exit stacker crane to the floor of each floor. .

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention described in the claims of the present invention
In an automatic warehouse equipped with a multi-row, multi-stage rack with many storage shelves and a stacker crane for storage that runs along the racks and loads or unloads stored items to or from predetermined storage shelves in the rack, A loading and unloading transport device for loading or unloading a storage item to or from a loading and unloading stacker crane extending at the end of the rack is provided at one or more levels for each storage stacker crane. A floor loading / unloading transfer device that loads or unloads stored items from the stacker crane for loading and unloading to the floor of each floor in parallel with the traveling path of the crane is provided. Or, the loading and unloading of stored items between the loading and unloading transport device provided in multiple layers and the floor transport device provided in multiple layers,
Since the loading and unloading stacker crane that runs perpendicular to the rack was provided, there was no need to provide a loading and unloading transport line for each level, and storage and retrieval of stored items occurred continuously on the same rack storage shelf. Even in this case, if more than one storage and retrieval transport device is installed for each storage stacker crane according to the processing capacity, the storage stacker crane and the storage and retrieval stacker crane can Of the plurality of loading / unloading transport devices provided, a stored item can be loaded or unloaded to an empty loading / unloading transport device, so that the stored items can be simultaneously loaded and unloaded, and, as in the conventional device, There is no need to provide two transfer units for loading and unloading for each level, reducing the cost of the entire device and installing and distributing transfer units according to the processing capacity of the device. Since, with reasonable equipment size, and has an action that can provide goods movements device with low cost.

An embodiment of the present invention will be described below with reference to FIGS. In the figure, 1 is a stacker crane for loading and unloading that runs perpendicular to the rack, and 2 is a rail for stacker crane for loading and unloading. The loading / unloading stacker crane 1 is provided with a lifting platform capable of moving up and down on the crane, and a plurality of forks is provided on the lifting platform at the loading / unloading station side so as to be able to advance and retreat horizontally. The loading / unloading stacker crane 1 moves the fork to the loading / unloading station by moving the crane body along the rails 2 and raising / lowering the lifting platform, and loads / unloads the stored items 19 between the loading / unloading stations. Let it.

[0008] The floor loading / unloading truck 3 and the truck rail 4 constitute a floor loading / unloading transporting apparatus, and the storage 19 is transported by a loading / unloading stacker crane 1 and transporting means (for example, a forklift) provided on each floor. In this embodiment, one unit is arranged for each floor up to the fifth floor. The entry / exit carriage 6 and the bogie rail 7 constitute an entry / exit transfer device, which transports the stored items 19 between the storage stacker crane 8 and the entry / exit stacker crane 1. In this embodiment, the entry / exit transfer device is provided. The three pallets are stored in three upper and lower layers so that three pallets can be pooled for each storage stacker crane 8.

Reference numeral 8 denotes a storage stacker crane, and reference numeral 9 denotes a rail. As shown in FIG. 1, the storage stacker cranes 8 are provided between the opposing racks 10, respectively, and have the same configuration as the above-described storage and retrieval stacker cranes. The fork is moved to a predetermined storage shelf 11 of the rack 10 by moving the main body and raising and lowering the elevating table, and the stored items 19 are loaded or unloaded to and from the storage shelf 11 for each pallet.

Reference numeral 12 denotes a rack side station of the loading / unloading trolley 6, and 13 denotes a station of the loading / unloading trolley 6 on the stacker crane for loading and unloading. is there. Reference numeral 14 denotes a station on the stacker crane side for loading and unloading the floor loading and unloading trolley 3, and reference numeral 15 denotes a floor side station of the floor loading and unloading trolley 3.

The station 14 is a station for transferring stored items between the floor loading / unloading truck 3 and the loading / unloading stacker crane 1. The station 15 receives the stored goods received by a not-shown forklift or the like,
It is a station for unloading stored items from the floor loading and unloading cart 3. 16 is a conveyor for incoming and outgoing goods, 17 is stored goods 1
The conveyor 9 transports the conveyor 9 to an in-and-out conveyor 18, and the in-and-out conveyors 16 and 18 and the transport truck 17 constitute an external in-and-out device for in-and-out operations of the stored items outside the warehouse. In this embodiment, the external entrance / exit device is installed on the first floor of the warehouse.

In the above-described embodiment, the carriage is used for the loading and unloading transport device and the floor loading and unloading transport device. However, a conveyor or a loading tray can be used instead. It may be a transport means.
Hereinafter, a storage / reception operation of stored items in the automatic warehouse storage / reception device of the present invention will be described with reference to FIGS.

First, a storage item 19 is carried into an entry / exit conveyor 18 of an external entry / exit transport device provided on the left side of FIG. Transported to
It is carried into a predetermined storage shelf 11 of the rack 10 by the storage stacker crane 8. When unloading the stored items from the automated warehouse to a predetermined floor, the storage stacker crane 8
Receives a stored item 19 from a storage shelf 11 of a predetermined rack 10 by a fork, and discharges the stored item to the rack side station 12 of the loading and unloading cart 6.

Next, the loading / unloading trolley 6 transports the stored items 19 received from the storing / stacking crane 8 to the loading / unloading stacker crane side station 13 which is a delivery position to the loading / unloading stacker crane 1. The delivery stacker crane 1 receives the stored item 19 conveyed to the station 13 by a fork, moves to a predetermined floor, and is a delivery position of the entry / exit stacker crane 1 of the floor entry / exit transport device, which is a delivery / exit stacker crane side. Departure to station 14

Next, the floor loading / unloading trolley 3 transports the stored items 19 received from the loading / unloading stacker crane 1 to the floor side station 15 and is picked up by a not-shown forklift or the like to be discharged. Also, when entering the automatic warehouse from the floor, a stored article 19 to be entered by a forklift or the like (not shown) is received by the floor side station 15 and transported to the entry / exit stacker crane side station 14 by the floor entry / exit truck 3. Next, the loading / unloading stacker crane 1 receives the stored material at the station 14 and transports it to the loading / unloading stacker crane side station 13 of the loading / unloading transport device on a predetermined floor.

The loading / unloading transport device transports the stored items 19 to the rack side station 12, and then the storage stacker crane 8 receives the stored items at the station 12 and stores them on a predetermined shelf. In addition, when storage and retrieval of stored items occur consecutively in the same rack, for example, the storage and retrieval stacker crane 1 carries in the storage and retrieval transport device 6 corresponding to the rack that stores the stored items, At the same time, or in advance, the storage stacker crane 8 discharges the stored items to the vacant input / output transfer device 6 among the input / output transfer devices 6 provided in three levels for each storage stacker crane, and then The loading / unloading stacker crane 1 receives the articles to be taken out and carries it out to the floor entry / exit transport device 3, and the storage stacker crane 8 puts the incoming articles in the storage shelf of a predetermined rack.

As described above, according to the present invention, a plurality of transporting devices for loading and unloading stored items are not provided for each level as in the conventional device, but a plurality of transporting devices are provided for each storage stacker crane. Even when the stored articles are simultaneously entered and exited by the entry / exit transport apparatus, the entry / exit operation can be performed efficiently.

[0018]

As described above, the present invention relates to a loading / unloading transporting device for each storage stacker crane and a loading / unloading transporting device provided at a plurality of levels so as to be able to carry in the stored goods so as to be able to carry in the stored products. As we set up a stacker crane for delivery,
There is no need to install incoming and outgoing transport lines for each level,
Also, even if the storage and retrieval of stored items occur consecutively on the same rack storage shelf, storage stacker crane for storage can be provided if a plurality of loading / unloading transfer devices are provided for each storage stacker crane according to the processing capacity. And the stacker crane for entry and exit, out of the entry and exit transport device provided with a plurality of stored items,
Since it is possible to carry in or carry out a vacant entrance / exit transport device, simultaneous carrying in / out of stored items can be efficiently performed.

Further, unlike the conventional apparatus, it is not necessary to provide two transporting apparatuses for loading and unloading for each layer, thereby reducing the cost of the entire apparatus and furthermore, the loading and unloading transporting apparatus according to the processing capacity of the apparatus. Can be provided, and a low-cost entry / exit device with a reasonable equipment scale can be provided.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first floor portion of an automatic warehouse entrance / exit device of the present invention.

FIG. 2 is a side view of the automatic warehouse entry / exit device of the present invention.

FIG. 3 is a plan view of a conventional automatic warehouse entrance / exit device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Entry / exit stacker crane 2 Rail 3 Floor entry / exit trolley 4 Dolly rail 5 Dolly rail pedestal 6 Entry / exit trolley 7 Dolly rail 8 Storage stacker crane 9 Rail 10 Rack 11 Storage shelf 12 Rack side station 13 Storage / export stacker Crane-side station 14 Station for loading and unloading stacker Crane-side station 15 Floor-side station 16 Loading and unloading conveyor 17 Transport cart 18 Storage and unloading conveyor 19

Claims (1)

[Claims] 1. An automatic warehouse having a double-row multi-stage rack having a large number of storage shelves, and a storage stacker crane for traveling along the rack and loading or unloading a storage object to or from a predetermined storage shelf of the rack, A loading / unloading transfer device for loading or unloading a storage item to or from a loading / unloading stacker crane that runs perpendicular to the rack is provided at one end or a plurality of levels for each storage stacker crane extending to the end of the rack. An automatic warehouse entry / exit device comprising a floor entry / exit transport device that is arranged in parallel with a traveling path of an exit / exit stacker crane to carry in / out a stored item from / to an entry / exit stacker crane to each floor.