JPS5928481B2 - Input/output method in multi-level automatic warehouse - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for loading and unloading in a multi-level automated warehouse, and its purpose is to provide a method that can shorten working time and allow more cargo to be loaded and unloaded per unit time. It is in.

The present invention will be described in more detail below with reference to the drawings. In FIG. 1, la and lb are a large number of baggage storage compartments 2a in the vertical direction (X direction in the figure) and in the left and right direction (Y direction in the figure);
2b is a three-dimensional storage shelf, and 3 is a stacker crane.

The stacker crane 3 includes a crane truck 6 that can move by itself while being guided by ceiling side rails 4 and floor side rails 5, and a loading platform 1 that is provided on the crane truck 6 so as to be movable in the vertical direction (X direction in the figure). and the loading platform 7 in the front and back direction (Z direction shown in the figure).
The fork device 8 is provided so as to be able to protrude from the fork device 8.

According to the stacker crane 3 configured in this way, it is possible to carry out loading and unloading into and out of predetermined luggage storage compartments 2a and 2b by traveling the crane truck 6, raising and lowering the loading platform 7, and protruding the fork device 8. Can be done.

In the present invention, when entering and exiting the warehouse, as shown in FIG.
, Group 2b is divided into a zone 9 for both warehousing and unloading, which is located closer to the handling area 11 for both warehousing and unloading, and another inventory zone 10,
Then, the loading/unloading is carried out between the warehousing/unloading zone 9 and the warehousing/unloading zone 11, and the stacker crane 3 is used during the idle time such as night when the loading/unloading operation is stopped between the warehousing/unloading zone 9 and the inventory zone 11. Transfer your belongings in between.

In other words, the stacker crane 3 is connected to the loading and unloading loading and unloading handling area 11.
and the warehousing and unloading zone 9, which is located closer to the warehousing and unloading handling area 11, and the warehousing and unloading during idle hours such as nighttime when this normal warehousing and unloading work is suspended. Move the cargo stored in the dual-use zone 9 to the inventory zone 10, and move the cargo to be shipped next to the inventory zone 10.
from there to zone 9, which is used for both loading and unloading.

Since loading and unloading is carried out in this manner, the working time can be shortened and more cargo can be loaded and unloaded per unit time.

Conventionally, an incoming cargo handling area is provided at one end of the stacker crane travel path, and an outgoing cargo handling area is provided at the other end, and the cargo storage section group of the three-dimensional storage rack is located close to the loading/unloading area. The inventory zone is divided into an incoming zone on the one side, an outgoing zone near the outgoing handling area, and an inventory zone between the incoming and outgoing zones, and the stacker crane separates the inventory between the incoming and outgoing handling area and the outgoing area. Input work was performed between the zones, and unloading work was performed between the unloading zone and the unloading handling area.

For this reason, in the case of so-called complex cargo handling, such as loading and unloading, or unloading and then loading, the three-dimensional storage rack is moved from one end of the storage rack toward the other end in the extending direction of the crane travel path. Unfortunately, the stacker crane has to be moved between the storage zone and the delivery zone, and the time required for this movement has the disadvantage that the complex cargo handling operation takes a relatively long time. However, in the present invention, As mentioned above, since the warehousing and retrieval zone 9 is provided nearer to the warehousing and retrieval handling area 11, even in the case of the above-mentioned complex cargo handling, the warehousing and retrieval handling area 11 and the warehousing and retrieving zone 9 are Therefore, the wasteful lane movement process in the conventional method of moving the stacker crane from one end to the other end in the extending direction of the crane travel path of the three-dimensional storage shelf can be eliminated. As a result, the time required for loading and unloading work can be shortened, and more cargo can be loaded and unloaded per unit time.

In addition, in the conventional method described above, incoming cargo is stored in the warehousing zone, and outgoing cargo is stored in the outgoing zone, so that these are stored in separate zones. However, in the present invention, the number of baggage storage compartments must be set based on the maximum number of storage compartments and maximum number of storage compartments, and therefore the inventory zone cannot be configured very widely.However, in the present invention, Since the baggage that enters and leaves the warehouse is stored in one zone (the zone 9 for both loading and unloading), it is possible to use the baggage storage section that is empty after leaving the warehouse to store the baggage that is to be stored. The number of baggage storage compartments in only the entry/exit zone 9 may be set based on the maximum amount of inbound or outbound cargo storage, and therefore the inventory zone can be configured to be wider.

Furthermore, in the present invention, since the stacker crane 3 transfers cargo between the warehousing/unloading zone 9 and the inventory zone 10 during idle hours such as nighttime when normal warehousing/unloading work is suspended, the operation time of the stacker crane 3 is reduced. In addition, by organizing the shelves in advance, the next loading/unloading work can be facilitated.

As described above, according to the present invention, it is possible to obtain a method that has the effect of shortening the loading/unloading operation time and allowing more cargo to be loaded/unloaded per unit time.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a stacker crane and a three-dimensional storage shelf, and FIG. 2 is a schematic diagram showing the loading and unloading mode. Ia, lb...Three-dimensional storage shelf, 2a, 2b...
...Baggage storage compartment, 3...Stacker crane, 9...Combined loading/unloading zone, 10...
Inventory zone, 11... Loading and unloading loading/unloading area.

Claims (1)

[Claims] 1 The cargo storage section group of the three-dimensional storage shelf is divided into a zone for both loading and unloading and an inventory zone, and the zone for loading and unloading is configured closer to the handling area for loading and unloading, and a stacker crane is used to separate the zone for loading and unloading. Carrying out loading and unloading work between the loading and unloading zones, and transferring cargo between the loading and unloading zones and the inventory zone using the stacker crane during idle hours such as nighttime when loading and unloading operations are suspended. A method for loading and unloading a warehouse in a multi-level automatic warehouse.