JP3906877B2 - Pallet and case transfer method and transfer device in automatic warehouse equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pallet and case transfer device in an automatic warehouse facility.
[0002]
[Prior art]
Automated warehouses are designed to increase the number of shelves that store loads and increase the space storage ratio. They consist of multi-stage and multi-row shelves, stacker cranes, equipment for entering and leaving, control equipment and inventory management equipment, etc. Has been. The loaded inventory of the loaded cargo is determined by the inventory management device, is transported to the entrance of the shelf path that is loaded / unloaded by the loading / unloading device, and is stored on the shelf by the stacker crane. For delivery, information on the goods to be delivered is input to the inventory management apparatus and collated with the management information, the corresponding shelf is searched, and a delivery instruction is given to the stacker crane. The load taken out from the shelf by the stacker crane is sent to a loading / unloading stand provided in front of the automatic warehouse, and is moved from the loading / unloading stand onto a moving carriage. In addition, the load that has been moved on the moving carriage is moved to the picking station, and then the picking station performs the assortment picking work and the sorting picking work, and the load is reloaded and the combination is converted. Shipped in units such as order units and units by product type.
[0003]
FIG. 5 is a partial plan view of a pallet and case transfer device in a conventional automatic warehouse facility.
In the figure, a is a three-dimensional automatic warehouse. Reference numeral b denotes a shelf of the three-dimensional automatic warehouse a, which is configured in multiple rows and multiple stages. Each shelf b stores a load on a pallet. c is a stacker crane that travels along the shelf b in the longitudinal direction of the shelf b. d is a warehousing conveyor provided in front of the three-dimensional automatic warehouse a, and e is a warehousing conveyor juxtaposed with the warehousing conveyor d. f is a loading / unloading stand provided between the loading conveyor d and the loading conveyor e. g is an annular rail provided between the picking station i and h is a plurality of moving carriages that move on the rail g. The load is picked up from the shelf b by the stacker crane c together with the pallet, and is transported from the delivery conveyor e by the moving carriage h. o is a picking conveyor for transporting the load transported by the moving carriage h from the moving carriage h to the picking station i side. j is an empty pallet supply conveyor. k is an empty pallet spreading device that separates the empty pallets p that have been stacked and transferred one by one and sends them to the empty pallet supply conveyor j. m is a workbench for performing picking work on the empty pallet p. The load that has been transported together with the pallet by the picking conveyor o is picked by the operator u to the empty pallet p. n is a pallet unloading conveyor for unloading the picked pallet (actual pallet) to the downstream shipping line, and is provided below the rail g in the figure. The load remaining on the pallet after picking up the assortment is returned to the moving carriage h from the return line of the picking conveyor o, conveyed by the moving carriage h, returned to the three-dimensional automatic warehouse a, and stored in the shelf b. . q is a picking conveyor for transferring and transporting a load (case) t that has been transported together with the pallet by the movable carriage h from the movable carriage h. r is a sorting picking work table. The case t is picked and sorted by the worker u, and is carried out from the case carry-out conveyor s to the downstream shipping line in units of cases. The case t remaining on the pallet after sorting picking is returned to the moving carriage h from the return line of the picking conveyor q, conveyed by the moving carriage h, returned to the three-dimensional automatic warehouse a, and stored in the shelf b. .
[0004]
[Problems to be solved by the invention]
However, the pallet and case transport apparatus in the automatic warehouse facility shown in FIG. 5 is provided with a work table for picking and sorting loads on an empty pallet and a work table for sorting and picking loads (cases), and Since the empty pallet supply conveyors are arranged side by side, there is a problem that the effective space of the picking station is increased and the cost is increased.
[0005]
The present invention was devised to solve the above-mentioned problems, and the assortment picking work table and the sorting picking work table are used together as one work table, so that the assortment picking work and the sorting work are performed. An object of the present invention is to provide a pallet and case transport device in an automatic warehouse facility that can perform picking work by dividing time zones to save space and reduce costs.
[0006]
[Means for Solving the Problems]
According to the present invention, when shipping a load stored in an automatic warehouse, which is provided in an automatic warehouse composed of multi-row / multi-stage shelves, stacker cranes, storage facilities, etc., to an empty pallet Pallet and case transport device for automatic warehouse equipment that performs assortment picking work and case sorting picking work for the same pallet and case sorting picking work for empty pallets at the same time table In addition, an automated warehouse that picks up assorted picked pallets through the pallet transfer line to the downstream pallet shipping line and sorts picked cases through the case transfer line to the downstream case shipping line. A pallet and case transport device in an installation is provided.
[0007]
According to the embodiment of the present invention, the work table is lowered by a lifter provided at the lower part when the empty pallet is received, is connected to the upstream empty pallet supply conveyor, and the loaded pallet is carried out. Can be moved up and down so as to be connected to the downstream pallet / case carry-out conveyor, and a roller conveyor and a pair of chain conveyors are arranged in front of the work table, In addition, the ascending / descending work is performed during the assortment picking and sorting picking operations on the left and right and middle of the chain conveyor, and when the pallets and cases are transported, they are lowered and placed on the chain conveyor and transferred. A plate is preferably provided.
[0008]
Next, the operation of the present invention will be described.
When picking up and picking up a load on an empty pallet, the load stored on the pallet on the shelf of the automatic warehouse is picked up by the stacker crane together with the pallet, placed on the moving carriage from the delivery conveyor, and picking station Move from the picking conveyor to the lifting platform. At the picking station, the work table is lowered by the lifter, the empty pallet is received from the empty pallet supply conveyor onto the work table, the work plate is raised slightly above the upper surface of the chain conveyor, and the empty pallet is placed on the work plate. An operator performs an assortment picking operation on an empty pallet in units such as an order unit or a product type unit. When the assortment picking is finished, the work plate is lowered, the actual pallet is transferred to the chain conveyor, and then sent from the pallet unloading roller conveyor to the pallet shipping line on the downstream side through the pallet / case unloading conveyor for shipment. The load remaining on the pallet after picking up the assortment is returned to the moving carriage from the return line of the picking conveyor, conveyed by the moving carriage, returned again to the automatic warehouse, and stored on the shelf. On the other hand, when shipments are shipped in units of cases, the pallet assortment picking operation is stopped. In the same manner as when picking up and shipping, the sorting picking operation is carried out, sent from the case carry-out roller conveyor to the case shipping line on the downstream side through the pallet / case carry-out conveyor, and shipped. The load remaining on the pallet after sorting and picking is returned to the mobile carriage in the same manner as the pallet picking, transported by the mobile carriage, returned to the automatic warehouse, and stored on the shelf.
[0009]
[Embodiments of the Invention]
Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.
1 to 4 are views of a pallet and case transfer device in an automatic warehouse facility, and FIG. 1 is a perspective view of the pallet and case transfer device in the automatic warehouse facility. FIG. 2 is a partially enlarged plan view of FIG. FIG. 3 is an AA arrow view of FIG. FIG. 4 is a plan view of the work table.
[0010]
In the figure, 1 is an automatic warehouse. 1a is a warehousing conveyor provided in front of the automatic warehouse 1, and 1b is a warehousing conveyor arranged in parallel with the warehousing conveyor 1a (FIGS. 1 and 2). 1c is a loading / unloading stand, and 1d is a shelf of the automatic warehouse 1 (FIG. 2). 2 is a stacker crane provided along the shelf 1d in the longitudinal direction of the shelf 1d, and moves on the rail 2a (FIG. 2). Reference numeral 3 denotes a picking station of the automatic warehouse 1. Reference numeral 4 denotes a picking conveyor which is provided between the automatic warehouse 1 and the picking station 3 along an annular rail 19 provided along the loading / unloading table 1a. Reference numeral 18 denotes a plurality of moving carriages that move on an annular rail 19 (FIGS. 1 and 2). Reference numeral 5 denotes an elevating table that can be raised and lowered by a lifter 5c, and the height can be adjusted so that the operator 20 can easily work when picking a load that has been conveyed (FIG. 3). A roller conveyor 5a and a pair of chain conveyors 5b are provided on the upper surface of the lifting platform 5, and the pair of chain conveyors 5b are slightly lifted by a lifting device (not shown) so that the picking conveyor 4 and the roller conveyor 5a The traveling direction of the conveyed load is changed to a right angle direction to move (FIGS. 1 and 2).
[0011]
Reference numeral 6 denotes a work table for performing pallet assortment picking work and case sorting picking work, and as shown in FIG. 3, can be moved up and down by a lifter 6b disposed on a base 6a. Further, as shown in FIG. 4, a pair of chain conveyors 7 and a work plate 11 are disposed on the left and right and the middle of the chain conveyor 7 on the upper surface of the work table 6. A roller conveyor 9 is provided.
[0012]
As shown in FIG. 4, the chain conveyor 7 includes a sprocket 7b provided at both ends of the rotating shaft 8c and an endless chain 7a wound around the sprocket 7c provided apart from the sprocket 7b. Reference numeral 8 denotes a chain conveyor drive motor. Reference numeral 8 a denotes a drive shaft of the drive motor 8. 8b is a sprocket provided on the drive shaft 8a, and 8d is a sprocket provided on the rotating shaft 8c. Reference numeral 8e denotes an endless chain wound around the sprocket 8b and the sprocket 8d. The drive motor 8 drives the rotary shaft 8c.
[0013]
As shown in FIG. 4, the roller conveyor 9 includes a plurality of rollers 9a. Reference numeral 9b denotes a sprocket provided at one end of the roller 9a. Reference numeral 10 denotes a roller conveyor drive motor. Reference numeral 10 a denotes a drive shaft of the drive motor 10. Reference numeral 10b denotes a sprocket provided on the drive shaft 10a. An endless chain 10c is wound around the sprocket 10b and the sprocket 9b, and drives the roller 9a by driving the drive motor 10.
[0014]
The work plate 11 can be moved up and down by a lifting device that moves up and down by supplying and discharging air to a tube (not shown) provided on the lower surface of the work plate 11.
[0015]
Reference numeral 13 denotes an empty pallet supply conveyor provided at the lower stage of the pallet / case carry-out conveyor 12. The empty pallet 14 supplied from the upstream side is delivered to the work table 6 (FIG. 3).
[0016]
As shown in FIGS. 1 and 2, reference numeral 15 denotes a pallet carry-out roller conveyor provided adjacent to the pallet / case carry-out conveyor 12 and perpendicular to the pallet / case carry-out conveyor 12. A pair of chain conveyors 15a that is lifted and lowered by a lifting device (not shown) is provided at the position to be moved. Reference numeral 16 denotes a case carry-out roller conveyor provided so as to be orthogonal to the pallet carry-out roller conveyor 15. The pair of chain conveyors 15a is lifted slightly when the picked-up case 17a is received from the pallet / case carry-out conveyor 12, and lowered when transferred to the pallet carry-out roller conveyor 15. On the other hand, when the picked case 17a is received from the pallet / case carry-out conveyor 12, it is lifted slightly and transferred to the case carry-out roller conveyor 16 in the raised state, and carried to the downstream case shipment line. .
[0017]
Next, the operation of this embodiment will be described.
When picking up and picking up the load on the empty pallet 14, the load stored on the pallet on the shelf 1d of the automatic warehouse 1 is picked up by the stacker crane 2 together with the pallet and moved from the unloading conveyor 1b. 18 is moved from the picking conveyor 4 of the picking station 3 to the lifting platform 5. In the picking station 3, the work table 6 is lowered by the lifter 6 b to receive the empty pallet 14 from the empty pallet supply conveyor 14 onto the work table 6, and the work plate 11 is slightly raised above the upper surface of the chain conveyor 7 to empty the pallet. 14 is placed on the work plate 11, and the operator 20 performs picking work for assortment of goods on the empty pallet 14 in units such as order units or product type units. When the assortment picking is finished, the work plate 11 is lowered from the upper surface of the chain conveyor 7 and the actual pallet 14 is transferred to the chain conveyor 7, and the downstream side of the pallet unloading roller conveyor 15 through the pallet / case unloading conveyor 12. Shipped to the pallet shipping line. The load remaining on the pallet after picking up the assortment is returned to the moving carriage 18 from the return line of the picking conveyor 4, transported by the moving carriage 18, returned to the automatic warehouse 1, and stored in the shelf 1 d. On the other hand, when the load is shipped in units of cases, the assortment picking operation of the pallet 14 is stopped. Then, the sorting picking operation is performed in the same manner as when picking and shipping the assortment, and the pallet and case carry-out conveyor 12 is sent from the case carry-out roller conveyor 16 to the downstream case shipment line for shipment. . The load remaining on the pallet after the sorting picking is returned to the mobile carriage 18 in the same manner as the pallet picking, transported by the mobile carriage 18, returned to the automatic warehouse 1 and stored in the shelf 1d.
[0018]
The present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention.
[0019]
【The invention's effect】
As described above, according to the present invention, the assortment picking work table and the sorting picking work table are used as one work table, and the assortment picking work and the sorting picking work are separated by a time zone. As a result, it is possible to ensure flexibility in work mode and operation, and to achieve excellent effects such as space saving and cost reduction of the picking station.
[Brief description of the drawings]
FIG. 1 is a perspective view of a pallet and case transfer device in an automatic warehouse facility of the present invention.
2 is a partially enlarged plan view of FIG. 1. FIG.
FIG. 3 is an AA arrow view of FIG. 1;
FIG. 4 is a plan view of a work table.
FIG. 5 is a partially enlarged plan view of a pallet and case transfer device in a conventional automatic warehouse facility.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Three-dimensional automatic warehouse 2 Stutter crane 3 Picking station 4 Picking conveyor 5 Lifting platform 5a Roller conveyor 5b Chain conveyor 6 Work table 6b Lifter 7 Chain conveyor 8 Chain conveyor drive motor 9 Roller conveyor 10 Roller conveyor drive motor 11 Work plate 12 Pallet ・Case carry-out conveyor 13 Empty pallet supply conveyor 14 Empty pallet 15 Pallet carry-out conveyor 16 Case carry-out conveyor 17 Case 18 Moving carriage 19 Rail 20 Worker

Claims (3)

Multi-row-multistage shelves for storing in a state of placing the case on the pallet, shipping case stacker crane, stored Oite, in the automatic warehouse in automated warehouse configured with Guaranteed for goods movements At the time, in order to place the case on the pallet and ship it to the outside, take out the pallet stored on the shelf, pick the case manually from there and load it on the empty pallet , Pallets and cases in automatic warehouse equipment that picks up pallets stored on shelves for shipment to the outside in case units, picks the cases manually, and places them directly on the workbench for picking work there is provided a method of transport, the sorting picking work of Nisoroe picking work and the case to an empty pallet, separated by time zone Performs the same workbench, the pallet placing the cases that Nisoroe picking downstream of the pallet delivery line through the pallet conveying line, sorting picking the case on the downstream side of the case shipment line through case feed line A method for transporting pallets and cases in automatic warehouse equipment, characterized in that each is transported. Ship the case on a pallet or ship as a single item from an automatic warehouse consisting of multi-row / multi-level shelves, stacker cranes, storage facilities, etc. This is a pallet and case transfer device in an automatic warehouse facility that can be selected to be picked up manually by picking up the pallet stored in the shelf with a stacker crane etc. and placing it on the pallet on the lift A work table on which the case is placed directly on or placed on the pallet placed thereon, and a sorting device for sending the case or pallet sent from the work table to the case transport line or the pallet transport line. Te becomes, the worktable is a lifter which is provided in the lower part, an empty pallet on the upstream side descends when receiving the empty pallet Concatenating a sheet conveyor, the rollers to elevated has become vertically movable so as to articulate with the downstream side of the pallet case unloading conveyor, also workbench top surface when unloading the pallet or case separately carrying case A conveyor and a pair of chain conveyors are installed in front of it, and it rises during the picking and sorting picking operations on the left, right, and middle of the chain conveyor, and pallets and cases are placed on the chain conveyor and transferred. A pallet and case transport device in an automatic warehouse facility, which is provided with a work plate that can be raised and lowered when it is lowered . The sorting apparatus includes a pair of chain conveyors that can be moved up and down, and a roller conveyor having a number of rollers parallel to the chain of the chain conveyor. When a pallet or case is received, the pallet is raised, and when a pallet with a picked case is placed, it is lowered, and the pallet is placed on the roller conveyor and moved downstream by the roller conveyor. 3. The pallet and case transport apparatus in an automatic warehouse facility according to claim 2, wherein the case is moved downstream while the chain conveyor is raised when shipping .

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