JPS63112305A - Automatic warehouse - Google Patents

Abstract

PURPOSE:To improve the transfer efficiency and picking efficiency of a stacker crane by installing a plurality of waiting stations for loading the handled articles carried out from an accommodation shelf by the stacker crane. CONSTITUTION:A stacker crane 25 is shifted, and a sliding fork 28 is raised to the position of a shelf 22 for the actual pallet onto which a handled article is loaded, and is pulled out. Then, the sliding fork 28 is lowered to a floor, and the actual pallet is carried out to a waiting station 23-2 at that position. The trailing device of the waiting station 23 and the driving device of a transfer dolly 31 are engaged, and the actual pallet loaded on the carrying-in/out conveyor on the waiting station 23 is transported onto the carrying-in/out conveyor of the transport dolly 31. The transport dolly 31 shifts to the position of a picking station 32-1 from the waiting station 32-2, and the driving device of the transport dolly 31 and the trailing device of the picking station 32 are engaged.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automated warehouse that is capable of efficiently loading and unloading items to and from storage shelves.

[Conventional technology]

2. Description of the Related Art Conventionally, there is an automated warehouse for carrying in and out of handled items, as shown in FIG.

In this automated warehouse, storage shelves 1 are constructed by stacking a plurality of shelves for storing pallets and arranging them in a straight line, and two rows of storage shelves 1 are arranged in parallel with an appropriate interval.

Between the two rows of storage shelves 1, a stacker crane 2 having a fork (not shown) for loading and unloading pallets to and from the eight shelves of the storage rack 1 is provided so as to be movable while being guided by rails 3. .

Also, at the right end of each storage shelf 1 (in Fig. 6), there is a space where, for example, a pallet brought by a forklift can be transported to the storage shelf 1 by the stacker crane 2, or vice versa. A loading/unloading stand/picking station 4 is provided for temporarily placing pallets when they are carried out with a forklift.

In the above configuration, when carrying in the items to be handled, a pallet carrying the items to be handled (hereinafter referred to as an actual pallet) is placed on the loading/unloading table and picking station 4 using a forklift. Next, the stacker crane 2 stores the actual pallets in each column of the designated storage shelf 1.

Next, when the desired items to be handled are to be taken out, the actual pallets are taken out by the stacker crane 2 and placed on the pick-up station/picking station 4, and the required number of items to be handled is taken out (
After picking (hereinafter referred to as picking), the stacker crane 2 again stores the actual pallet on the shelf from which it was taken.

The above operations need to be performed each time a different item is to be picked.

However, with this type of automatic matching, only one loading/unloading table/picking station is placed corresponding to one storage shelf, so the position of each storage shelf is changed each time the items to be picked differ. Since the stacker crane has to go back and forth up to 1,000 yen, the amount of movement of the stacker crane per picking is large, and therefore the number of pickings per hour cannot be increased, resulting in low picking efficiency.

Therefore, we developed the 7th automated warehouse that solved this problem.
There is one shown in the figure.

This automated warehouse has 5 storage shelves. The stacker crane 6, rail 7, and loading/unloading platform 8 are the storage shelves 1. of the automatic Q warehouse described above. Stacker crane 2. The rail 3° is the same as the loading/unloading table/picking station 4, but only one row of storage shelves 5 and only one loading/unloading table 8 are arranged. On the side where the stacker crane 6 travels, picking carts 9 are provided corresponding to each of the lowermost rows of the storage a5.

In such an automated warehouse shown in FIG. 7, in order to store the items in each column of the storage 1i15, first, for example, a forklift is used to transport the pieces 1 to 1 to the loading/unloading table 8. Next, the fork of the stacker crane 7 carries the actual pallet placed on the loading/unloading table 8 to a designated shelf of the storage shelf 5 and stores it.

In order to carry out a desired object, the stacker crane is moved to a shelf where an actual pallet with the object to be handled is stored, the pallet is carried out, and the pallet is sent as it is to the picking cart 9 at that position. Thereafter, the worker goes to the picking trolley 9 to pick up the items.

After taking out the desired number of objects, the stacker crane 7 returns the actual pallets to their original shelves. When there are no more items to handle, the empty pallet is returned to the loading/unloading table 8 by the stacker crane 7.

In this way, in the automated warehouse shown in FIG. 7, the items to be handled can be taken in and out by moving the picking cart 9 to the target position in the storage 15, so the amount of movement of the stacker crane per picking can be reduced. Picking efficiency can be improved.

(Problems to be Solved by the Invention) However, the automated warehouse shown in FIG. 7 has a problem in that the worker must move between a plurality of picking carts for picking work.

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention aims to provide a vJ0 warehouse that can improve the moving efficiency and picking efficiency of a stacker crane and reduce the labor of workers.

[Means for solving problems]

The automatic zero warehouse of the present invention includes a storage shelf in which a plurality of shelves for storing items to be handled are stacked and arranged, a stacker crane that moves along the storage shelf to take in and take out the items to be handled, and a A plurality of waiting stations are located corresponding to the array and place the objects to be handled that have been carried out from the storage by the stacker crane, and a plurality of waiting stations for carrying out the objects placed on the waiting stations and placing them at a predetermined location along the waiting stations. Consists of a transport vehicle that transports you to the location! It is a ζ thing.

[For production]

According to the above configuration, when storing the items, the stacker crane transports the items and stores them at a predetermined position on the storage shelf. When a storage request is received, the stacker crane takes out the items from the storage shelves and places them on the storage station. The object placed on the standby station is transported by a transport vehicle to a predetermined position, for example, a position set as a picking station. Thereby, the operator can pick the required number of pieces at this position. When carrying out another object during picking, the object currently being picked is temporarily placed on a waiting station, for example, by a transport vehicle. During this time, the other items to be handled are carried out by a stacker crane,
It is placed on the standby station at that location. Then, the transport vehicle moves to the standby station, carries out the other object to be handled, and transports it to a predetermined position.

This increases the moving efficiency of the stacker crane and improves the picking efficiency. In addition, the amount of movement required by the 1 yen trader is reduced, reducing labor.

〔Example〕

Embodiments of the present invention will be described below with reference to FIG. 1, which is a partial plan view of the entire automated warehouse, FIG. 2, which is a front view of the entire automated warehouse, FIG. 3, which is a right side view of FIG. The explanation will be based on FIG. 4, which is a detailed front view of the crane, and FIG. 5, which is a detailed right side view of the stacker crane.

In FIG. 1, the loading/unloading JIIi device 20 is used to temporarily place a real pallet transported by a forklift or the like, or to temporarily store an empty pallet in order to transport it by a forklift or the like. It is.

A first storage shelf 21a is installed on the left side of the loading/unloading device 20. A second storage shelf 21b is installed parallel to the first storage a21a at a predetermined interval.

The first storage shelf 21a has a plurality of stacked shelves 22 for storing pallets arranged in a linear manner.

The second storage shelf 21b has the same structure as the first storage shelf 21b, but the lowest shelf has a waiting station 2 which will be described later.
3 is HH.

Between the first and second storage spaces 21a and 21b, the rail 24 is parallel to them. on this rail 24)
G moves the stacker crane 25 that transports the pallets.

As shown in FIGS. 4 and 5, the stacker crane 25 has a traveling device 26 that moves along the floor rail 24.
, a frame 27 that stands vertically, a sliding fork 28 that moves up and down while being guided by the frame 27, and a hoisting device 29 that hoists the sliding fork 28.

In FIG. 1, the waiting station 23 is for temporarily placing pallets carried out by the stacker crane 25.

A rail 30 is installed along the waiting hoe station 23, which has multiple distribution stations, and a transport cart 3 is placed on the rail 30.
1 is supported so that it can run freely.

The transport vehicle 31 includes a traveling device for moving along the rails 30, a carry-in/out conveyor for carrying in and out of pallets between the standby station 23 and a picking station 32 (to be described later), and a conveyor for carrying in and out of the pallets. A driving device (not shown) is provided for driving.

Two picking stations 32 are installed at predetermined positions within the movement range of the transport vehicle 31.

The waiting station 23 and the picking station 32 are provided with a driven device installed on the w1 carriage 31 (e) that engages and connects with a drive device of the loading/unloading conveyor, and a driven device driven by the driven device to carry out pallets. A loading/unloading competition 17- (all not shown) is provided respectively.

Next, the operation of the above configuration will be explained.

First, when carrying in items to be handled, a real pallet is transported to the loading/unloading device 20 using a forklift.

Next, the stacker crane 25 is moved by the traveling device 26.
The operator moves to the position of the loading/unloading device 20, holds out the sliding fork 28, and picks up the actual pallet from the person handling device 20. The stacker crane 25 that has picked up the actual pallet retracts the sliding fork 28 with the actual pallet still on it, and is moved to a predetermined position on the shelf 22 by the traveling device 26. Then, by driving the hoisting device 29, the sliding fork 28 is raised to a predetermined shelf and the actual pallet is stored on the shelf.

In this way, the actual pallets are stored in the first and second storage shelves 2.
1a and 21b, the stacker crane 25 is operated by a computer command or the like to take out the desired item from the second shelf from the left of the first storage shelf in FIG. 1, for example. Move and slide out fork 2
8 to the actual pallet shelf 22, where the handled items are yiv.
Hold it upright and do not hold it out. Thereafter, the sliding fork 28 carrying the pallet is lowered to the floor, and the actual pallet is carried out to the standby station 23-2 at that position.

At that time, the transport vehicle 31 is moved to the position of the standby station 23-2 in advance.

Then, the driven device of the standby station 23 and the drive device of the transport vehicle 31 are engaged and interlocked to transport the actual pallet placed on the carry-in/out conveyor on the standby station 23 to the carry-in/out conveyor of the transport carriage 31. do.

The transport cart 31 on which the actual pallets are mounted is moved to the mi station 23 by means of a traveling device provided on the cart 31.
-2 to the position of picking station 32-1, and engages and interlocks the drive device of the conveyance vehicle 31 and the driven device of the picking station 32.

As a result, the actual pallet on the carrier 31 is
1 and the picking station 32 by a conveyor for carrying in and out of the picking station 32.

Thereafter, the operator picks the item to be handled from the picking station 32.

If it becomes necessary to pick another object during the above-mentioned picking, the stacker crane 25 slides out the actual pallet on which the other object is placed by the above-mentioned stroke operation while continuing the current picking. It is kept waiting for being carried out to the standby station via the fork 2B. When the current picking is completed, the actual pallet is transferred to the original waiting station 23 by the transport vehicle 31.
The actual pallet being transported is returned to the picking station 32 and other items to be handled are picked. In this case, the actual pallet on which the other items to be handled may be loaded may be carried out to the second picking station 32-2 without having to wait for being carried out at the standby station. In this case, picking can be performed simultaneously from two real pallets.

When the picking is completed, if there are any items remaining on the actual pallet, the actual pallet 1- is transferred to the conveyor truck by the reverse stroke operation to the aforementioned process for carrying out the actual pallet.
1. Standby station 23-2, stacker crane 2
After passing through the sliding fork 28 of No. 5, it is retracted to the original location 822.

In this case, actual pallets that are frequently picked may not be stored again on a predetermined shelf, but may be placed on a standby station to wait, in preparation for the next delivery.

Also, when there is no more handling material on the pallet and the pallet becomes an empty pallet, the empty pallet is transferred to the picking station 32. Transport truck 31. Waiting station 23.
It is carried out through the sliding fork 28 of the stacker crane 25 to the loading/unloading device 20.

As described above, according to this actual droplet example, the actual pallet on which the items to be picked are placed is taken out from the storage shelf by the stacker crane, placed at the waiting station, and then transported to the picking station at a predetermined position by the transport trolley. Therefore, the work opening can be picked at a predetermined position,
Picking efficiency is improved, labor is saved, and safety is improved.

Additionally, if it becomes necessary to pick other items during picking, the actual pallet containing the other items can be carried out to the waiting station while picking is continued, making it easier for stacker cranes to pick other items. This allows more leeway in operation, reduces the time required to exchange actual pallets, and improves picking efficiency.

Furthermore, since the actual pallets that are picked frequently can be left on standby at the tilting station instead of being re-stored on the designated shelves one by one, the time it takes to take out the actual pallet again is shortened, and the picking frequency can be reduced. The picking efficiency of items that are handled intensively is improved.

〔Effect of the invention〕

According to the own rA warehouse of the present invention, the items to be handled are taken out from the storage shelves by a stacker crane, placed on a waiting station, and then taken out to a predetermined position by a transport trolley, so that workers can pick at a predetermined position. This improves picking efficiency, saves labor, and reduces worker effort and improves safety.

In addition, during picking, it is possible to take out other items and wait for them to be taken out to the waiting station in advance, so items can be quickly exchanged, further improving picking efficiency and stacker cranes. The efficiency of movement will be improved.

In addition, items that are frequently picked can be stored on the storage rack instead of being re-stored in storage shelves one by one, so the items can be taken out quickly.
The picking efficiency of items that are frequently picked is improved.

[Brief explanation of the drawing]

Figures 1 to 5 show embodiments of the present invention; Figure 1 is a plan view of the entire automatic storage cabinet, with the 21st storage shelf cut horizontally;
The figure is a front view of the entire automatic 1, Figure 3 is a right side view of Figure 2,
FIG. 4 is a detailed front view of the stacker crane, FIG. 5 is a detailed right side view of the stacker crane, FIG. 6 is a first conventional example, and FIG. 7 is a second conventional example. 20... Input/output device, 21a... First storage shelf, 21
b...Second storage shelf, 23...Waiting station, 2
5...Stacker crane, 31...Single transfer platform, 3
2... Picking station. Applicant Ishikawajima Harima Heavy Industries Co., Ltd. Figure 7

Claims (1)

[Claims] A storage shelf with multiple stacked shelves for storing handled items,
A stacker crane that moves along the storage shelves and carries in and out the items to be handled to each shelf; and a stacker crane that is located corresponding to the arrangement of the storage shelves and places the items that have been taken out from the storage shelves by the stacker crane. multiple waiting stations,
An automatic warehouse comprising a transport vehicle that carries out the items placed on the standby station and moves and conveys them along the standby station to a predetermined position.