JPH03128802A - Cooling method by automatic storehouse - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the operation of an automatic warehouse suitable for cooling hot items (food, rubber, steel) manufactured on a production line.

[Conventional technology]

As shown in Japanese Unexamined Patent Application Publication No. 63-208409, an automated warehouse has a three-dimensional shelf having a large number of shelves, and a Stapka crane that runs along the three-dimensional shelf and transports cargo between the warehouse entrance and the shelf. It consists of.

Generally, the goods that have been stored in the warehouse are stored in order from the shelves near the entrance, and the stored goods are placed on the shelves until they are taken out of the warehouse.

In order to improve the efficiency of warehousing, items are stored on a shelf near the warehousing entrance when they are warehousing, and then transferred to another predetermined shelf during idle time. In addition, the cargo to be delivered the next day is moved to a shelf near the delivery port during idle time the night before, so that a large amount can be delivered at once when the product is delivered the next day. These techniques are called permutations.

[Problem to be solved by the invention]

It is conceivable to use automated warehouses to radiate heat from high-temperature objects during manufacturing, and then release them after they reach room temperature.

In this case, the dogs that come into the warehouse are stored sequentially from the shelf near the entrance and are held until they are removed from the warehouse, so there are cases where items that are hotter are stored lower than items that were brought in earlier and have a lower temperature. . In this case, the entire three-dimensional shelf becomes relatively hot, and efficient cooling is not performed.

An object of the present invention is to obtain an efficient cooling effect within a predetermined time.

[Means to solve the problem]

The present invention stores the received cargo on the upper shelf of the three-dimensional shelf,
The present invention is characterized in that after a predetermined period of time has elapsed, the cargo is transferred to a lower shelf of the three-dimensional shelf, and further, after a predetermined period of time has elapsed, the cargo on the lower shelf is taken out.

[For production]

According to this, high-temperature loads are stored in the upper part of the three-dimensional shelf and low-temperature loads are stored in the lower part, so that low-temperature loads are not heated by high-temperature loads.

Therefore, a low-temperature load can be obtained after a predetermined period of time, and efficient cooling can be performed.

〔Example〕

The present invention will be explained with reference to an embodiment shown in the drawings.

FIG. 2 shows the overall configuration, including a three-dimensional shelf 10.10' with a large number of shelves arranged vertically and horizontally, a stacker crane running along the three-dimensional shelf 10.10',
It consists of computer power that memorizes the contents of the cargo stored in each column of the three-dimensional shelf, the storage period, empty shelves, etc., and instructs the stacker crane □ to enter, unload, and rearrange.

An optical transmission device (
(not shown). The stacker crane transports loads between the storage entrance or exit 16 and the shelves, and between the shelves.

FIG. 1 shows the configuration of computer power. The computer power activates the time management task and the stacker crane control task by starting motionless.

Both tasks operate cyclically, although the cycles are different.

Check the arrival time of inventory on empty shelves with time management tasks,
Loads (shelf numbers) for which the first time has elapsed are sequentially written to the rearrangement file. The first time is the time when the temperature of the load changes from high to low and it becomes necessary to rearrange the load. (Step 51
0) Next, the cargo (shelf number) for which the first time has elapsed and the second time has elapsed is written in the retrieval file 柘. The second time is the time required for the temperature to drop to a temperature that can be taken out of the warehouse. (Step 520) The stacker crane control task instructs the stacker crane to execute a warehousing request or a warehousing request if the computer inputs the request. (Steppu 830.540)
In the shipping operation, the shipped cargo is deleted from the file section and the file is moved forward.

If there is no stocking or delivery, the system goes to check the rearrangement file, and if there is data, it orders the stub cuff lanes to perform rearrangement work on the empty shelves at the bottom of the three-dimensional shelves 10 and 10' in order from the front. When rearrangement is performed, the data marked with the rearrangement file mark is deleted and moved to the front. (Step 550) In the above embodiment, the reassignment is performed once, but if the first time is divided into multiple periods and the reassignment is performed multiple times, cooling can be performed with a higher tightening rate.

〔Effect of the invention〕

According to the present invention, since an efficient cooling effect can be obtained,
Efficient inventory management is possible for automated warehouses that also function as cooling systems.

[Brief explanation of the drawing]

Claims (1)

[Claims] 1. Storing the received cargo on the upper shelf of the three-dimensional shelf, after a predetermined time has elapsed, rearranging it to the lower shelf of the three-dimensional shelf, and after a further predetermined time, taking out the cargo on the lower shelf. A cooling method using an automatic warehouse characterized by the following.