JPS6087103A - Automatic warehouse housing system - Google Patents

Abstract

PURPOSE:To improve the operating ratio of a crane by designating a housing position according to data on out-frequency during a fixed period, and changing the housing position depending upon the frequency in automatic storehouse with a crane. CONSTITUTION:A main control portion 1 is adapted to display an out-command on a display portion 11, and read out an address. Simultaneously, +1 is counted on an out-frequency counter 9. In response to this operation, a crane 7 carries housed materials to an out station, and an operator picks up the material, the remaining materials being housed again by the crane 7. At this time, out-frequency data during a fixed period are sent to a housing address designating portion 10 by a housing address setting button 12a, and a new housing address is set from an empty housing address area and an individual address to house the material. Thus, the housing position is determined according to the out-frequency so as to improve the crane operating ratio.

Description

Detailed Description of the Invention +a) Technical Field of the Invention The present invention relates to a method for storing stored items in an automatic warehouse in which stored items are automatically taken in and out using a crane, and in particular, to improve the operating efficiency of the crane and facilitate unloading. Concerning an automatic warehouse storage method that can be carried out quickly.

(Background of BL technology) Recently, with the progress of factory automation, automation systems for intermediate warehouses for various production processes, parts, and product warehouses have been developed and put into practical use.

In such warehouses, it is desired that stored items can be moved in and out quickly.

(C1 Conventional technology and problems) Conventionally, in automated warehouses where the frequency of unloading differs depending on the type of stored item, items that are frequently unloaded are stored near the home position of the crane, and items that are unloaded with low frequency are stored in a far position. In order to store the cranes, the person in charge sets the frequency of unloading based on experience, and sets the storage position designation in the crane control unit to automatically control the storage location.

However, according to this method, due to artificial settings,
Appropriate judgment may not be applied to all stored items, and even if it is initially appropriate, the actual situation may differ due to factors such as the frequency of delivery may change over time.

Therefore, even if items are delivered frequently, they may be stored at the back of the warehouse, which reduces the efficiency of crane operation.
This has the disadvantage that it not only consumes more power, but also takes longer to take out the warehouse.

(d1 Purpose of the Invention The purpose of the present invention is to solve the above-mentioned drawbacks, and to provide an automatic warehouse storage system that can automatically designate storage position 1 based on delivery frequency data to improve crane operating efficiency. It is on offer.

(1141 Configuration of the Invention The present invention includes a counting means for counting the frequency of each of a large number of stored items stored in a warehouse, and a storage position that is determined according to the frequency data for a predetermined period of time counted by the counting means. This is an automatic warehouse storage system that is equipped with a specifying means for specifying and changes the storage position according to the frequency of warehouse deliveries, thereby achieving the purpose.

(f1 Embodiment of the Invention An embodiment of the present invention will be described below with reference to the block diagram of FIG. 1.

In Fig. 3, ■ is the main control section, 2 is the storage file section,
3 is a storage command memory, 4 is a storage control section, 5 is a retrieval command memory, 6 is a retrieval control section, 7 is a crane, 8 is a crane drive control section, 9 is a retrieval frequency counter, 10 is a storage address designation section, and 11 is a retrieval command memory. A display section, 12 a keyboard, and 12a a storage address setting button.

Although not shown, items stored in an automated warehouse are usually housed in boxes, placed on pallets, and transported by holding the lower surface of the pallets with the arm of a crane. The stored items are then taken out on a first-in, first-out basis.

The main control section 1 controls each section by inputs from a control center (not shown) connected online or from a keyboard 12.

The storage file unit 2 files the storage data of the storage items stored in a warehouse (not shown), that is, the code number 9 name, quantity, and storage address of the storage items, and also holds empty storage addresses in areas and individual addresses. This is what we are doing. In this case, the areas are areas within the warehouse, such as A, B, C, etc., depending on the length of time required for the crane 7 to leave the warehouse.
This is a storage area divided as follows.

The storage command memory 3 receives at least one storage command sequentially input from the control center or the keyboard 12 via the main control unit 1, that is, a list storage command signal to be stored, code number 1, bubble name, quantity, etc. It holds physical data.

When the storage control unit 4 receives a storage activation signal from the main control unit 1,
When a storage command is held in the storage command memory 3, it has a function of outputting a first-come, first-served storage command from the storage command memory 3 and sending it to the crane drive control section 5.

The delivery command memory 5 stores at least one delivery command input from the control center or the keyboard 12 via the main control unit 1 in sequence, that is, the product to be delivered, the delivery command signal, the code number, the bubble name, the quantity, etc. It holds physical data.

When the exit control unit 6 receives the exit start signal from the main control unit 1,
When the unloading command is held in the unloading command memory 5, it has a function of outputting a first-come, first-served unloading command from the unloading command memory 5 and sending it to the crane drive control section 8.

The crane 7 is controlled by a crane drive control section 8 to automatically store stored items and transport them for unloading.

The crane drive control section 8 has a function of controlling the drive of the crane 7 based on a storage command or a retrieval command sent from the main control section 1 and a start command from the keyboard 12.

The retrieval frequency counter 9 includes many counters 9+3, 9b that count the retrieval frequency of each stored item in the warehouse.

..., and has a function of sending counted delivery frequency data to the storage address designation section 1o by inputting the storage address setting button 12a of the keyboard 12.

The storage address designation unit 10 specifies an address for each stored item from the outgoing frequency data from the outgoing frequency counter 9 and the empty storage address area and individual addresses in the storage file unit 2, and sends it to the storage file unit 2 for registration. It has the function of

If the newly specified address is in the same area as before, the address specified in the agreement will be specified.

The display unit 11 is a display device using, for example, a cathode ray tube (CRT) display, and displays input from the keyboard 12 and also displays storage/unloading of target stored items while the crane 7 is being driven, that is, during storage/unloading.

Code number 1 name, quantity and storage address are displayed.

The keyboard 12 includes a start/stop button for the automatic warehouse, a data input button, a crane start button for loading/unloading the warehouse, and a storage address update button 12a for starting/stopping the warehouse.

It is operated not by input from the control center but by operation input when storing/retrieving the warehouse and when updating the storage address.

With such a configuration and function, when storing and unloading stored items, first, during storage, input stored item data is input from the control center or keyboard 12 along with a storage signal, and the data is stored in the storage command memory 3. Ru.

When it is the turn for the storage of the corresponding stored item, the data of the stored stored item is outputted and displayed on the display unit 11 according to the storage start signal from the main control unit I, and the stored data in the storage file unit 2 is updated. And read the storage address.

Then, the crane drive control unit 8 is activated, and the crane 7 holds the pallet on which the corresponding stored items are placed from the storage station (not shown) and stores it at the specified storage address.

Further, at the time of leaving the warehouse, the leaving store data is input together with the leaving signal from the control center or the keyboard 12, and is held in the leaving command memory 5.

When it is the turn to take out the corresponding stored item, the outgoing stored item data is outputted and displayed on the display unit 11 according to the unloading start signal from the main control unit 1, and the data stored in the storage file unit 2 is updated. And read the address.

On the other hand, +1 is counted in the corresponding storage item counter of the delivery frequency counter 9.

Then, the crane drive control @ 8 is started, and the crane 9 holds the stored items from the specified address and transports them to the unloading station (not shown), and the quantity specified in the unloaded stored items data is pinked by the staff. The remainder is again stored at the address by the crane 7.

In this way, storage/unloading is repeated according to the frequency, the automated warehouse is operated, and the frequency of shipping is counted.

Then, when the delivery frequency data within a predetermined period 1, for example, 1 month or 3 months, is accumulated in the delivery frequency counter section 9, the storage address setting button 12 of the keyboard 12 is pressed.
Operate a to set the storage address of the stored items that will be stored from now on.

That is, when the storage address setting button 12a is operated, the delivery frequency data is sent to the storage address designation section 10, and a new storage address is set from the empty storage address area and individual address from the storage file section 2.

Stored items that will be stored from now on will be stored at this storage address.

If the storage address of the joint name and the newly specified storage address are different, there are many cases where there is still a stored item at the storage address of the joint name, and therefore the same stored item is stored in two locations. Since inventory is first-in, first-out, the stock will eventually run out at the joint storage address, and from then on, items will be shipped from the newly designated storage address.

Therefore, the storage address is set according to the frequency of storage, and the operating efficiency of the crane 7 can be increased, which not only reduces power consumption but also shortens the storage time. .

(As described in detail, according to the present invention, the operating efficiency of the crane can be improved by automatically counting the frequency of unloading and setting the storage position of stored items based on data for a predetermined period. Therefore, power consumption can be reduced,
This has the effect of shortening delivery time.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. In the figure, 1 is a main control unit, 2 is a storage file unit, 3 is a storage command memory, 4 is a storage control unit, 5 is a delivery command memory, 6 is a delivery control unit, 7 is a crane, 8 is a crane drive control unit, 9 is a delivery frequency counter, 10 is a storage address designation section, 11 is a display section, 12 is a keyboard, and 12a is a storage address setting button. Qin 1st

Claims (1)

[Claims] In an automatic warehouse in which stored items are automatically loaded and unloaded by an automatic transport device, a counting means for counting the frequency of retrieval of each of a plurality of stored items stored in the warehouse, and a predetermined period counted by the counting means An automatic warehouse storage system characterized by comprising a command means for specifying and instructing a storage position according to delivery frequency data, and changing the storage position according to the delivery frequency.