JPS6025323B2 - Loop type automatic warehouse - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a loop type moving warehouse that simultaneously increases the storage capacity and storage density of articles and reduces the size of equipment.

Currently, various types of automated warehouses have been proposed and implemented.

The items handled in warehouses range from large-scale items such as steel to small-scale items such as bolts and nuts. Traditionally, automated warehouses that handle small-scale goods
Several types of systems, such as those listed below, are central to warehouse management. The first is a high-rise rack system that incorporates stacker cranes. When small parts are managed by this system, various disadvantages arise such as an increase in the scale of the equipment, an increase in the amount of equipment investment, and furthermore, the equipment maintenance becomes complicated. Furthermore, in order to reduce the manual labor involved in loading and unloading goods by automating only high-turnover items, an unnecessarily large number of equipment such as stacker cranes will be required. As a result, the scale of the equipment tends to become even larger, which inevitably leads to a decrease in capacity and density. The second method is a flow rack system.

Since this system requires extensive fixed equipment, it is accompanied by an increase in equipment costs. Furthermore, since it has a considerable amount of dead weight, it is difficult to provide a high-rise storage capacity. Of course, building high-rise buildings is possible, but the equipment costs will increase over time.
The third method is a loop rack system.

This system is characterized by storing and transporting items using a conveyor line, and has been developed as an automatic warehouse for small items. However, this system has the drawback that the compare line itself requires a lot of fixed equipment, and the entire equipment occupies a large area in the warehouse space. Furthermore, the storage density is also reduced. Furthermore, since the compare line is transported by some kind of power, running costs become high. In addition to the above three methods, there are also systems that suitably combine these three methods. However, even if it is possible to compensate for the advantages of each to some extent, it does not fundamentally eliminate the above-mentioned disadvantages. The present invention provides an automated warehouse that eliminates the above-mentioned conventional drawbacks.

An object of the present invention is to provide a loop-type moving warehouse that increases storage efficiency, keeps equipment investment low, and reduces running costs. Another object of the present invention is to provide a loop type warehouse in which products are stored, transported, and sorted in one line, that is, an endless loop line. A further object of the present invention is to configure storage in the endless loop line with an inclined line section, and configure operations such as sorting with a processing line section mainly consisting of a flat line section such as a belt conveyor. be. Still another object of the present invention is to provide an automatic warehouse in which products are transported by actively utilizing gravity itself.

Still another object of the present invention is to provide a loop type warehouse that can be used in combination with a regular warehouse to efficiently manage the work ratio between high-turnover products and low-turnover products. . The gist of the present invention to achieve these objects is to configure the endless loop line to consist of an inclined line section that mainly performs storage and a processing line section that mainly performs processing such as loading and unloading on a flat surface. This is what I did.

By combining these two line sections, the present invention is able to provide a new and unique automated warehouse that is not available in the prior art. Of course, a powered product transfer method is used at the entrance from the processing line section to the inclined line section. Compare lines, which are currently widely used, are most suitable for processing the inclined line portions on a plane. However, other line configurations are not limited. Of course, the processing on the plane is mentioned for the sake of comparison with the inclined line portion, and slight inclination etc. are naturally considered within the scope of the present invention. Hereinafter, the drawings will explain the invention in detail. FIG. 1 is a schematic diagram for explaining the entire automated warehouse according to the present invention.

The automatic warehouse is composed of an inclined line section 1 and a processing line section 2. The inclined line part 1 has an inclined line 10. This inclination line 10 is provided in space with a predetermined inclination with respect to the ground. Now, slope line 1
0, the parts 11 and 12 that are directly connected to the processing line part 2 as shown in the figure are the inlet part and the outlet part, respectively.The inlet part 11 is at the highest position farthest from the ground, and the outlet part 12 is at the highest position above the ground. set at the closest location. That is, the bucket 14 is configured to fall by gravity, that is, naturally fall, through the conveyance path 13 from the entrance section 11 toward the exit group 12. A bucket number is attached to each bucket 14 so that it can be read by an external mark reader. Each bucket contains a specific product, such as a bolt in a first bucket and a nut in a second bucket. However, bucket numbers and products do not necessarily have a fixed correspondence, but generally have a random relationship. Since it utilizes the gravity fall of the head slope line 1, it does not have storage capacity with the above configuration. In order to provide storage capacity, a separator 15 having a part of a stopper is provided at a position close to the outlet section 12. By providing this separator 5, the buckets 14 input and conveyed from the inlet section 11 are stopped one after another with the buckets 14 located on the inlet side of the separator 5 in the front row, and the storage state is maintained. . The separator 15 includes the above-mentioned stopper part and the outlet part 1
2 has a delivery part that delivers the bucket obtained by removing the stopper part from the conveyance path. In addition to the above-mentioned components, mark sensors 16 and 17 are provided for reading the bucket number attached to the bucket 14. The transport path 13 that transports the bucket 14 is closely related to the configuration of the bucket itself. That is, if a suspension type structure is used in which the bucket 14 is suspended from the transport path 13, the transport path 13 has a simple structure in which the bucket 14 is suspended. Alternatively, in the case of a trolley type, the conveyance path 13 may have a rail configuration on which the bucket 13 is simply rolled. Next, the processing line section 2 is mainly placed on a flat surface, and consists of a re-stocking line 20, a processing line 21, an outgoing picking line 22, and a warehousing line 23.

Each of these lines is arranged in a plane. However, the outlet section of the processing line section has an inclined structure rather than a planar structure in relation to the inclined line section. This will be discussed later. Each line of the processing line section 2 is composed of, for example, a compare line, and at this time, the bucket 14 is conveyed on the compare line. The outlet of the Enoki diagonal line section 1 is the inlet of the processing line section 2. From this entrance, the line branches into a restocking line 20 and a processing line 21. A stopper 24 is used to select the branch destination line. Stopper 24 is driven by an external control system. That is, the bucket number of the bucket 14 conveyed through the separator 15 is read by the mark sensor 16. The read bucket number is sent to the control device. This control device takes in the bucket number and checks what kind of processing is requested for the bucket indicated by the bucket number. As a result of this check, if there is no processing request for the corresponding bucket, the stopper 24 is driven to the position indicated by the dotted line. As a result, the bucket enters the re-stocking line 201 and is transported as it is. If the check results show that there is a processing request for the bucket, the stopper 24 is driven to the position indicated by the solid line, and the bucket enters the processing line 21. go.
As is clear from the above, the restocking line 20 and the processing line 21 have a close relationship with the storage state of the buckets in the inclined line section 1. That is, the storage positions of the buckets on the line 10 of the inclined line section 1 are completely random, and only the bucket number attached to the bucket indicates the position of the bucket. Therefore, the buckets 14 selected by the separator 15 are carried out in accordance with the storage order. Of course, some of the buckets to be taken out are not required to be stored or taken out at all. The re-stocking line 20 is a line for storing and transporting these buckets that are not required to be stored or taken out. As a matter of course, the processing line 21 is a line that transports buckets that are required to be stored or taken out. The exit portion of the processing line 21 branches into an outgoing picking line 22 and an incoming line 23 . This branch selection is performed by a stopper 25. This stopper 25 is driven by the control system described above. That is, the bucket number of the transported bucket is read by the mark sensor 26, and then the negotiated bucket number is sent to the control system. In the control system, it is determined whether it is a retrieval request or a retrieval request, and when the retrieval request is determined, a stopper 25 is activated to send the bucket to the retrieval picking line 22.
is moved in the direction of the dotted line, and when determining a warehousing request, the stopper 25 is moved in the direction of the solid line to send the bucket to the warehousing line 23. The outgoing picking line 22 includes a picking station 27, and the incoming line 23 includes an incoming station 28. The transported bucket is
Picking station 27, warehousing station 28
Stop once. The picking station 27 is a workplace where childbirth picking is performed, and the warehousing station 28 is a workplace where warehousing is performed. Pickking Station 2
In step 7, the required number of products from among the products stored inside the bucket is taken out from the bucket stopped at a certain position of the station. This is possible even if the bucket is automated and the extraction is done automatically.If it is done manually by a person, the station is a simple extraction work station, but if it is automated, the extraction port is provided in the bucket itself. Then, the products are automatically taken out from the take-out port, and when the number of taken-out products is counted and the required count is reached, the delivery is considered complete, and the bucket is transported again. In either case, the number of products to be taken out from the bucket is given by the control system described above.At the warehousing station 28, the number of products to be taken out from the bucket is determined by the number of products to be taken out from the bucket. A predetermined number of products given by the control system (of course, which product to put in which bucket is given by the control system) is stored inside.

This storage work, like the picking work, can be done manually by humans or by automation. Once a predetermined number of products have been delivered, the bucket that has been stored will be transported again. Restocking line 20
The buckets that have passed through the outgoing picking line 22 and the incoming line 23 eventually reach the exit section of the processing line section, and are sequentially conveyed to the inlet section 11 of the inclined line 10.
A mark sensor 17 is provided at the inlet portion 11 . The mark sensor 17 detects the number of the bucket that has passed through the entrance section 11, and sends the detected number to the control system to authenticate that the bucket has entered the storage state. As explained above, the entrance section 11 is located at the highest position above the ground, so in order to convey the product to the entrance section 11, the bucket must be raised from the ground to that position. This may be done by means such as a compare line, or by lifting the bucket on the processing line section. The bucket that has entered the storage state naturally falls down on the line 10 due to gravity, and is connected to the end of the buckets stored up to now and stored. Let us describe the operation of the above embodiment. When warehouse operations are stopped, the bucket section 14 is stopped and in a storage state as shown in the inclined line section 1. When starting the warehousing/retrieval operation, for example, the products that are being warehousing and retrieval are input into the control device, and the corresponding bucket numbers and the number of warehousing/retrieval items are filed.Of course, the files may also be filed online. Needless to say. First, when the loading/unloading operation starts, the separator 15 takes out the buckets 14 that are stopped in line one by one. The bucket number of the removed bucket 14 is read by the mark sensor 16 and sent to the control system. The control system compares it with its own filed data to determine whether or not the same day's loading/unloading is required, and based on the result, it rotates the arm of the stopper 24 to remove the products for which loading/unloading is requested on the same day. If so, that bucket. The bucket 14 is sent to the processing line 21 and the bucket 14 is sent to the re-stocking line 20' if the product does not have a storage/receiving request.The bucket 14 sent to the re-stocking line 2M is read by the mark sensor 17, After being corrected, the buckets 14 ride on the conveyance path 13 again and slide down due to gravity and are stocked at the end of the row of stored buckets.Meanwhile, the buckets 14 sent to the processing line 21
The bucket number is read by the mark sensor 26, and based on the data from the control system, it is output to the stopper 25 and sorted into and out of the warehouse.

The bucket 14 to be delivered is sent to the delivery picking line, transported to the front of the picking station 27, and once stopped. When the bucket 14 stops, unloading work is performed based on unloading data from the control system. When the unloading operation is completed, the control system sends a shift command to the bucket 14' to cause it to be transported. Next, it reaches the position of the mark sensor 17, and the file is corrected and stored. The bucket 14 on which the warehousing request is made is on the warehousing line 2.
3 and stopped at the warehousing station 28,
Warehousing work is carried out. When the warehousing process is completed, bucket 1
4 starts conveyance, the bucket number is read by the mark sensor 17, the file is corrected, and then stored.
The operation as described above is repeated until the last bucket 14 is searched. In the above embodiments, stoppers 24 and 25 are shown as means for switching lines.

Instead of this stopper, it is also possible to adopt a structure in which the line itself is switched. For example, instead of the stopper 24, the entrances of the re-entering line 20 and the processing line 21 can be switched, and when determining re-entering, the line from the exit of the inclined line section is switched and connected to the re-entering line 20, and processing is determined. Sometimes, the line from the outlet of the oblique line is switched and connected to the processing line 21. This configuration remains the same even when the stopper 25 is eliminated and line switching is performed.
In addition, in the embodiment, the determination of whether to re-enter or process, or whether to pick or receive is carried out at different positions, but it goes without saying that the determination may be made at the same position. In this variant, the processing line 21 is no longer necessary;
Three lines, the re-entry line 20, the outgoing picking line 22, and the warehousing line 23, are directly connected to the exit side 12 of the inclined line section 10. These three lines 20
, 227 and 23 are, of course, configured to be switched and selected depending on whether it is re-entering, out-of-warehousing picking, or warehousing. Next, an example of a control system will be described. In the embodiment described above, it is first determined whether to re-enter or process, and if it is determined to be processed, the item is transported on the line, and then it is determined whether to re-enter or exit. A control system according to such a configuration may be shown, but first.
The control system described in the modification of the above embodiment will be explained,
After that, the control system of the above embodiment will be explained. FIG. 2A is a control system diagram of the above-mentioned modification, and FIG. Regarding the diagram A, first, the request unit 30
is used to issue a request for warehousing or warehousing. This request section 30 is a section into which request contents are input by a human. The request contents include the product name and the number of products in addition to whether to issue or receive the product. The output of the requesting unit 30 is divided into two depending on whether the item is out of stock or in. When outgoing, request data is sent to the outgoing input table creation unit 31, and when incoming, the request data is sent to the incoming input table creation unit 32. . The data format of both the outbound request data and the inbound request data is format a. Here, the product name and designated area 44
is a keyword indicating the product name, not the product name itself. Area 45 indicates the number of items to be delivered when a delivery request is made, and the number of items to be stocked when a warehousing request is made.
Upon receiving such request data, the shipping input table creation unit 31
and the warehousing input table creation section 32 create a warehousing input input table, respectively. These two input/output tables take the data format shown in figure b. That is,
The requested data is received and sequentially filed in areas 46 and 47, and a table is created. Next, based on the input/output table and the storage table 33, a delivery table and a warehousing table are created by a delivery table creating section 34 on the delivery side and a warehousing table creating section 35 on the warehousing side.

The contents of the storage table 33 are shown in the opening diagram c, and the outgoing table and the warehousing table are shown in the opening diagram d. First, let us explain about the storage table 33. This table 33 is a table in which buckets stored in the inclined line section 1 are filed, and this data format includes an area 48 indicating the bucket number, an area 49 indicating the product name, and the number of stored products. It consists of an area 50 showing
The address of this table is completely arbitrary and there is generally no regularity. Of course, if you create a table with the results of sorting according to the order of storage, the addresses will have regularity. Both the shipping table creation unit 34 and the warehousing table creation unit 35 search in which bucket in the storage table 33 the products filed in the warehousing input table and the warehousing input table are stored, and identify the products that have been requested to be shipped or received. We are working on making it correspond to the bucket number. The tables obtained as a result of this work are the warehousing table and the warehousing table. This exit table and warehousing table serve as port d. In the case of the shipping table, the data format includes an area 51 indicating the bucket number, an area 52 indicating the product name, an area 53 indicating the number of items requested for shipping, and
It consists of an area 54 showing the current number of stored items specified in the storage table 33. The necessity of the area 54 will be described later. Processing up to the creation of the above warehousing table and warehousing table may be performed online or offline.

Whether to use online or offline is based on the concept of warehouse management, and the present invention is not limited to either. Next, let's explain the flow of the actual bucket.

The bucket number of the bucket selected by the separator 15 of the oblique line portion 1 is read by the mark sensor 16. Reading of the bucket number is performed in an analog manner, and processing of waveform shaping and digitization is performed. The bucket number reading unit 36 is performing a measuring operation. The bucket number digitized by the bucket number reading section 36 is sent to an outgoing table scanning comparison section 37 and an incoming table scanning comparison section 38. The comparison section 37,
38, the contents of the outgoing table and the incoming table created by the outgoing table creation unit 34 and incoming table creating unit 35 are sent, and the bucket number corresponding to the bucket number obtained from the bucket number arrangement unit 36 is sent. Performs a scan comparison to see if it exists in both tables. This scanning is performed, for example, sequentially from the top addresses of both tables. During the scanning process, if the corresponding bucket number is in the shipping table, a shipping request signal 37a is generated indicating that there is a shipping request, and if there is no matching bucket number as a result of scanning all addresses in the table, indicating that there is no shipping request. signal 3
7b is generated. The same applies to the warehousing table; if there is a matching bucket number in the scanning process, a warehousing request signal 38a indicating a warehousing request is generated, and if there is no matching bucket number as a result of scanning all addresses in the table, the warehousing request signal 38a is generated. In this case, a no delivery request signal 38b is generated. The output signals of the scanning comparison sections 37 and 38 described above are sent to the line switching section 39. The line switching unit 39 performs line switching in order to send the corresponding bucket to either the re-entering line 20, the exit line 22, or the receiving line 23 depending on whether the re-entering is an exit or a re-enter. The restocking command is issued by signals 37b and 38.
b is input at the same time, and the exit command is signal 37.
This is the case where a is input, and the warehousing command is a case where the signal 38a is input. Thus, the scan comparators 37, 38
Line selection is performed by a line switching section 39 which receives the output signal of. Furthermore, when a match is found, the scan comparators 37 and 38 send the contents of the address on the table where the match was found to the station 27 as a signal 37c when a match is found in the delivery table, for example. It is sent to the station processing unit 40, and when a match is found in the inventory table, the contents of the address are sent to the signal 38c.
The data is sent to the station processing section 41 of the station 28 as a file. The station processing units 40 and 41 sequentially file the sent address contents. Next, the bucket is conveyed along the line selected by the line sliding section 39.

The buckets that have entered the outgoing line 22 and the incoming line 23 eventually reach stations 27 and 28. The bucket is temporarily stopped at the station 27, 28, and a predetermined bucket is processed based on the data already filed in the station processing units 40, 41 mentioned above, especially based on the bucket number and the number in the outgoing or incoming quantity area. Consider the shipping or receiving process for each item. Once this process is complete, the bucket is transported again. After such processing, the buckets transported on the re-stocking line reach the entrance section 11 of the inclined line section 1.

At this time, the mark sensor 17 detects the number of the bucket reached. The bucket number reading section 42 shapes the waveform of the bucket number detected in an analog manner by the mark sensor 17 and digitizes it. This digitized bucket number is output to the storage table creation section 43. The storage table creation section 43 receives an address corresponding to the bucket number obtained by the bucket number reading section 42 upon receiving data from the outbound table created by the outbound table creation section 34 and the incoming table creation section 35, and the incoming table. Change the contents of This change is made by taking the difference (in the case of shipping) or the sum (in the case of receiving) between the contents of area 53 and the contents of area 54 in the address in the table shown in ``d'', and creating a format such as ``e''. This is done by doing this. In the format of ``e'', area 55 shows the bucket number, area 56 shows the product name, and area 57 shows the actual number of products stored in the bucket as a result of shipping or receiving. The storage data obtained by the storage table creation section 43 is sent to the storage table 33 and rewritten, and the contents of the storage table 33 are newly created. This storage table is created every time the mark sensor 17 detects a bucket number. As a result, the storage table will be automatically created. Incidentally, after the bucket number of the bucket passing through the restocking line 20 is detected by the mark sensor 17, the data is sent from the storage table 33 to the storage table creation section 43. At this time, the number of items in stock is not changed. In the above explanation, it has been stated that the work of creating the shipping table and the receiving table can be done online or offline.

If this is done offline, for example, a day may be set such that the morning is for file creation and the afternoon is for loading and unloading. Moreover, although the explanation has been given in which the unloading and warehousing operations are performed at the same time, it is also possible to perform the unloading work and the warehousing work separately in terms of time. Furthermore, we created different tables for warehousing and warehousing, but we unified these tables by preparing one table for both warehousing and retrieval, and used bits to indicate whether a specific area of the data format was warehousing or warehousing. It is also possible to configure it as a configuration. Alternatively, it is also possible to prepare a table that instructs either warehousing or warehousing, and store the data section in another table. Furthermore, the modification work on the storage table may actually be complicated as explained above. For example, if the number of products to be delivered is larger than the number actually stored in the bucket as a result of a delivery request, only a smaller number than the requested number of products can be taken out. This is the same in the case of a warehousing request; for example, a situation may occur in which the bucket cannot accommodate the number of products requested to be warehousing. In such a situation, in the table shown in section d, the difference or sum between the contents of area 53 and area 54 cannot be filed as actual values on the storage table. It is also necessary to create processing routines in advance to adapt to these situations. For example, the results of the shipping or receiving process may be obtained on the stations 27 and 28, and the results may be used as data on the number of products in the storage table creation section.
Note that the products are not necessarily stored in one bucket, but may be stored in two or more buckets. Rather, in practice, products are often stored in multiple buckets. At this time, the bucket number scan is 1
It is possible to consider a configuration in which the scanning does not end when the number of times matches, but instead performs the entire scanning. Furthermore, since the first data set in the storage table is done at the same time as the general filing,
No special explanation will be necessary. Next, the control system for the above embodiment itself will be briefly explained.

The difference from the control system shown in FIG. 2 is that the stopper 24
, 26 are present, and the processing line 21 is included. The stopper 24 is not given three determination instructions, such as exit, re-entry, or re-entry, but two determination instructions, namely, re-entry or re-entry. Therefore, the second
Create a shipping table and a receiving table as shown in the figure,
It may be arranged such that when a scanning determination is made that there is a request for either of them, the instruction is given as an entry/exit instruction, and when that is not the case, the instruction is given as a re-entry instruction. Alternatively, a table for input/output instructions may be created in advance, and it may be determined whether or not there is an instruction for input/output by scanning the table. Next, for the stopper 25, the outgoing table and the incoming table are scanned based on the bucket number detected at this time, and based on the results, it is determined whether the outgoing instruction or the incoming instruction is issued, and the stopper 25
5 may be driven. Of course, it is also possible to create a warehousing/receiving table that serves as both a warehousing table and a warehousing table, and to have the table scanned to determine whether to warehove or receive. In addition, in the above explanation,
Although the control of the zeparator 15 and the control of temporary stopping of the buckets at the stations 27 and 28 have not been specifically explained, this is because the operation is simple and is not specifically excluded from the invention.

Furthermore, it goes without saying that processing may be performed without specifying the number of items to be delivered or received. Next, an embodiment of the suspended bucket 14 and the conveyance path 13 of the mirror oblique line section 1 is shown in FIG.

The A figure shows a front view, and the mouth view shows a side view. The bucket 14 is
A support section 142 is provided on the ceiling of the main body section 141. Two wheels 143 are attached to the tip of this support portion 142. Furthermore, as is clear from the diagram, the support portion 142
has wheels in two directions, front and back of the bucket. On the other hand, the conveyance path has an H-shaped configuration when viewed from the front, and the wheels 143 can be held in the recessed portion of the H-shaped configuration. As a result, by tilting the conveyance path 13, the wheels of the bucket rotate and move on the conveyance path 13, allowing movement by natural fall. Note that the conveyance path 13 is fixedly supported by a brace 1301. Fourth
This figure is a perspective view showing a state in which the conveyance path and bucket shown in FIG. 3 are stored on an inclined line.

In this embodiment, the conveyance path 13 is not a direct type but a kind of helical type, and point A indicates the upper part and point B indicates the lower part. The bucket flows in from the direction indicated by the arrow on the A side,
It flows out and is conveyed in the direction indicated by the arrow on the B side. In this embodiment, the conveyance path 13 has a helical configuration because, when a plurality of lines are used in combination, the capacity for accommodating buckets is particularly increased, and safety in conveying the buckets is also improved. In the above embodiment, a single line was used, but a combination of multiple lines is also possible, and the line itself only needs to have a structure that allows the bucket to fall naturally, so it may be a straight line or curve. It's okay.

The structure of the bucket itself is not limited to the hanging type, and for example, a trolley type or the like may be used. Furthermore, in terms of the whole, since the embodiment of the present invention can be shipped out continuously, if used in conjunction with a regular warehouse, products with low turnover rates can be managed by the regular warehouse, and the automated warehouse of the present invention can It is possible to manage products with a high turnover rate, and extremely efficient warehouse management is possible. As described in detail above, according to the present invention, since the function of product storage management is provided to the natural fall type inclined line section, the storage capacity can be greatly improved, and furthermore, the capital investment can be reduced. .

Furthermore, as a result of connecting this inclined line section to the processing line section, it has become possible to operate product sorting operations efficiently and to significantly reduce running costs as a whole. Furthermore, when combined with a regular warehouse, it has become possible to store products appropriately and effectively.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the overall configuration of the present invention, FIG. 2 is a control system diagram, and FIG. 3 is an embodiment diagram of the bucket structure of the present invention.
FIG. 4 is a diagram showing the storage state of the bucket. 1... Forehead diagonal line part, 2... Processing line part, 10... Inclined line, 13... Conveyance path, 14
...Bucket, 20...Restocking line, 21...
... Processing line, 22 ... Output picking line, 2
3... In stock line. Figure 2 Figure I Figure 2 Figure 3 Figure Dimensions

Claims (1)

[Claims] 1 Its own inlet is located higher than the outlet;
an inclined line section in which buckets containing products are allowed to naturally fall from the entrance section toward the exit section through the conveyance path, and the buckets are sequentially arranged and stored between the exit section and the entrance section; Its own inlet and outlet are connected to the outlet and inlet of the line section, and during loading and unloading processing, the buckets that are sequentially taken out from the outlet of the inclined line section to the inlet are requested to be loaded and unloaded from the outside. A pick-out line and an in-stock line that select the bucket itself depending on whether the bucket is a pick-up bucket or not, that is, a pick-out request bucket or an input-request bucket, and transport the selected bucket, respectively, and the pick-out line. and a picking station and a stocking station which are installed on the receiving line and carry out picking and receiving processing for the transported buckets; A loop-type automatic warehouse characterized by comprising: means for conveying and inflowing; and a processing line section consisting of;