JP2012229097A - Picking facility and identification code imparting method in picking facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of a work error, by preventing confirming work of a specific identification code corresponding to an order from a sorting destination from becoming complicated, even when layout is limited.SOLUTION: A shipping label 11 corresponding to an order from the sorting destination is stuck in inverse order of rearranging article collecting order preset by an automatic labeler 16 every preset transfer number unit (two pieces), to respective article collecting vessels 10 conveyed by a vessel conveyor 23 for conveying the plurality of article collecting vessels 10, the plurality of article collecting vessels 10 are conveyed in the opposite direction of the vessel conveyor 23 every transfer number unit (the two pieces), and the respective article collecting vessels 10 stuck with the shipping label 11 are transferred from the vessel conveyor 23 to a circulating type conveyor 21 for performing picking work regarding the article collecting vessels 10 to be conveyed.

Description

  The present invention relates to a picking facility in which the order of transport of collection containers for collecting articles is changed in the middle, and an identification code assigning method in the picking facility.

A conventional picking facility is disclosed in Patent Document 1, for example.
In the conventional picking facility disclosed in Patent Document 1, articles stored for each type in each frontage of a storage shelf are conveyed for each frontage while continuously conveying a plurality of collection containers (containers) by a conveyor. Based on the display of the provided frontage display (item display), the worker picks up the goods and puts them into the target collection container, thereby collecting the articles for each order from the sorting destination. Usually, each collection container is attached with a shipping label including information on a unique identification code corresponding to the order from the sorting destination, and the articles collected in the collection container are based on the shipping label. Ships to a sorting destination (delivery destination).

Japanese Patent No. 2799445

In the conventional picking equipment, when there is a restriction on the layout in which the devices and equipment are arranged, the transport order of the collection containers may be changed in the middle. In such a case, when carrying out the shipping work, each collection container will be transported in a different order from the planned transportation order, so it can respond to orders from the sorting destination included in the shipping label The confirmation work of the unique identification code thus made becomes complicated, and there is a risk that work mistakes will be induced.
Therefore, the present invention prevents picking up of a unique identification code corresponding to an order from a sorting destination even when the layout is limited, and can prevent a work mistake from occurring. An object of the present invention is to provide an identification code assigning method in equipment and picking equipment.

  In order to achieve this object, according to the picking equipment of the present invention, an article is put into the collection container according to the order from the sorting destination while conveying the collection container to which the order from the sorting destination is assigned. A picking facility in which a picking operation is performed, wherein a first transport unit that transports a plurality of collection containers and a transport start unit are arranged side by side with a transport end unit of the first transport unit, and the first transport unit From a second conveying means that conveys a plurality of collecting containers in a direction opposite to the conveying direction of the collecting containers, and the picking operation is performed on the collecting containers to be conveyed, and a conveying end portion of the first conveying means Also, an identification that is arranged in the vicinity of the first conveying means on the upper side in the conveying direction and assigns a unique identification code corresponding to an order from the sorting destination to each collection container conveyed by the first conveying means A transfer unit disposed at a transfer end portion of the first transfer unit and transferred from the first transfer unit to the second transfer unit for each preset transfer number unit Characterized in that the identification number assigning means assigns the identification code to the collection container in a reverse order in which a preset collection order is rearranged for each transfer number unit. To do.

Furthermore, according to the picking equipment of the present invention, a plurality of the collection containers that have been picked by the second transport means are loaded on a transport means such as a transport vehicle and transported to a sorting destination. The identification code assigning means is an identification code assigned to the plurality of collection containers so that the plurality of collection containers loaded on the transportation means are in the first-in first-out order with respect to the transportation means. It is preferable that the order can be set.
Further, according to the picking equipment of the present invention, the identification code assigning means, when the picking operation is interrupted until the unique identification code corresponding to the order from the specific sorting destination, orders from the specific sorting destination. When the unique identification code corresponding to is not given to the collection container transported the most downstream in the transport direction of the first transport means among the collection containers included in the transfer unit, the transfer Of the collection containers included in the number of units to be loaded, the collection transported downstream in the transport direction of the first transport means from the collection container to which a unique identification code corresponding to the order from the specific sorting destination is given It is preferable that the container is not given a unique identification code corresponding to the order of the sorting destination.

  Further, according to the identification code assigning method in the picking equipment of the present invention, the article is put into the collection container according to the order from the sorting destination while transporting the collection container to which the order from the sorting destination is assigned. In a picking facility where picking work is performed, a first transport means for transporting a plurality of collection containers and a transport start section are arranged side by side with a transport end section of the first transport means, and the collection by the first transport means A plurality of collection containers are transported in a direction opposite to the container transport direction, and using the second transport means in which the picking operation is performed on the transported collection containers, from the transport end portion of the first transport means, The collection container is transferred to the conveyance start unit of the second conveyance means for each preset number of transfer units, and a collection container set in advance for each collection container conveyed by the first conveyance means. Product order is set in advance In reverse order rearranged for each transfer units, it is characterized in applying a unique identification code corresponding to the order from the sort-destination.

  According to the present invention, in the picking facility in which a picking operation is performed in which an article is put into the collection container according to the order from the sorting destination while the collection container to which the order from the sorting destination is assigned is conveyed. A first transport means for transporting a plurality of collection containers and a transport start section are arranged side by side with a transport end section of the first transport means, and a plurality of transport containers are arranged in a direction opposite to the transport direction of the collection containers by the first transport means. And the second transporting unit in which the picking operation is performed on the transported collection container, from the transport end unit of the first transport unit to the transport start unit of the second transport unit, The collection container is transferred for each preset transfer number unit, and a preset collection order is set for each collection container conveyed by the first conveying means. Sorted in reverse order, sorted by unit By assigning a unique identification code corresponding to these orders, even if the collection container transport order is changed in the middle, confirmation work of the unique identification code corresponding to the order from the sorting destination can be performed. It is possible to prevent complications and prevent work errors.

It is a figure regarding the issuing order of the shipping label by the auto labeler in a picking installation, (a) is explanatory drawing before the transfer start, (b) is explanatory drawing after the transfer start. It is a whole block diagram of the picking equipment. It is a control block diagram of the picking equipment. It is a flowchart for determining the order which issues a shipping label by the auto labeler in the picking equipment. It is explanatory drawing regarding the unloading of the load by the reverse order of delivery in the transport vehicle which conveys the collection container which the picking operation was completed out of the picking equipment. It is a figure regarding the issue order of the shipping label by the auto labeler in consideration of the reverse delivery order in the picking equipment, (a) is an explanatory diagram before the transfer start, (b) is an explanatory diagram after the transfer start . It is a figure regarding the issuance order of the shipping label by the auto labeler when picking work is interrupted in the middle of the transfer number unit in the same picking equipment, (a) is an explanatory view before transfer start, (b) is transfer It is explanatory drawing at the time after a start.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 2 is an overall configuration diagram of the picking facility. In this picking equipment, each collection container 10 assigned with an order from the sorting destination is transported on the transport tray 12, and an article corresponding to the order from the sorting destination is taken out from the article storage unit 20, and each collection container 10 is picked up. The goods collected in the product container 10 are shipped for each sorting destination. The collection container 10 can be used as a shipping container as it is after the articles are collected. Each collection container 10 includes a unique identification code corresponding to an order from a sorting destination. (Other information such as the type of goods to be frozen / refrigerated, delivery direction, delivery date and time, number specifying the transport vehicle, order of delivery, etc. can also be included) is attached a shipping label 11 (FIG. 1). ), Based on the shipping label 11, information regarding the order from the sorting destination for the collection container 10 can be confirmed.

In the picking facility, a bag hanging device 26 that hangs a bag for collecting articles in an empty collection container 10 whose upper surface is opened for loading articles, and a plurality of bags hung by the bag hanging apparatus 26 A container conveyor 23 (an example of a first conveying unit) that conveys the collection container 10 to a transfer device 27 described later, and a conveyance start unit 22 in the vicinity of the transfer device 27 line up with a conveyance end unit 24 of the container conveyor 23. A plurality of collection containers 10 are conveyed in a direction opposite to the conveyance direction of the collection containers 10 by the container conveyor 23, and an article picking operation is performed from the article storage unit 20 to the collection containers 10 to be conveyed. A circulating conveyor 21 (an example of a second conveying means), an article storage unit 20 that is arranged along the circulating conveyor 21 and stores articles according to orders from a sorting destination, and the circulating conveyor 21 Circulate In the conveying direction of the transport tray 12 (collection container 10) by the type conveyor 21, it is arranged downstream of the article storage unit 20, and the collection container 10 after collection is sealed and loaded, for example, A transport vehicle 39 such as a truck for delivery to a sorting destination (delivery destination) (FIG. 5; an example of transport means such as a transport vehicle) is moved to a shipping place where the vehicle is stopped, and a container conveyor 23 An auto labeler 16 for automatically attaching a shipping label 11 (FIG. 1) assigned in the vicinity and assigned with a unique identification code corresponding to an order from a sorting destination to each collection container 10 which is transported by the container conveyor 23. The container conveyor 2 is disposed downstream of the auto labeler 16 in the conveying direction of the collection container 10 by the container conveyor 23, and is set for each preset transfer number unit. The transfer device 27 for transferring the collection container 10 from the container conveyor 23 to the transfer tray 12 transferred by the circulation conveyor 21 in a direction substantially orthogonal to the transfer direction of the paper, and the overall control and auto labeler of the picking operation 16 and a control device 35 (FIG. 3) for controlling the order in which the shipping labels 11 are issued.
The transfer device 27 is disposed at a position corresponding to the transfer end unit 24 of the container conveyor 23 and the transfer start unit 22 of the circulation conveyor 21.
The circulation type conveyor 21 is configured to circulate and convey a plurality of conveyance trays 12 on which the collection containers 10 are placed, and to repeatedly use the conveyance trays 12.

As shown in FIG. 1, the collection container 10 transported by the container conveyor 23 is ordered from the sorting destination by the auto labeler 16 before being transferred to the transport tray 12 transported by the circulation conveyor 21. Is attached (a unique identification code corresponding to an order from a sorting destination) is recorded.
As shown in FIG. 2, the collection container 10 placed on the conveyance tray 12 is conveyed to the article storage unit 20 by a circulation conveyor 21 (an example of a second conveyance unit), and is arranged in the article storage unit 20. The worker H takes out the target article from the article storage unit 20 and puts it into the target collection container 10.
Here, as shown in FIG. 1, each transport tray 12 has a container indicator 17 for instructing the worker H to input an article into the collection container 10 placed on the transport tray 12. Each worker H placed near the article storage unit 20 performs an article input operation on the collection container 10 for which an input instruction is given by the container indicator 17. By placing the collection container 10 on the transport tray 12 and moving it, it is clarified that the collection container 10 to be subjected to the input instruction by the container indicator 17 is the collection container 10 placed on the transport tray 12. The

  The collection container 10 in which the collection of the articles is completed is transported to the vicinity of the carriage 32 by the circulation conveyor 21, and the lid is closed on the collection container 10 by the operator H arranged in the vicinity of the carriage 32. Is removed from the transport tray 12 and placed on the carriage 32. After being transported to the shipping site by the carriage 32, it is loaded into a transport vehicle 39 (FIG. 5) such as a truck for each sorting destination. Delivered. The transport tray 12 from which the collection container 10 has been removed is transported again to the transfer device 27 by the circulation conveyor 21, and a new collection from the transport end unit 24 of the container conveyor 23 is performed by the transfer device 27 at the transport start unit 22. The article container 10 is transferred and conveyed to the article storage unit 20.

  Here, FIG. 2 shows a case where the picking facility is installed in, for example, the building 31 and there are space and layout restrictions. In the example shown in FIG. 2, since the installation position of the bagging machine 26 for bagging the collection container 10 is limited, the conveyance direction of the collection container 10 in the conveyance end portion 24 of the container conveyor 23 and the circulation conveyor The conveyance direction of the collection container 10 in the conveyance start part 22 of 21 is made into the opposite direction. In other words, the transport direction of the collection container 10 by the container conveyor 23 and the transport direction of the collection container 10 by the circulation conveyor 21 are opposite in the vicinity of the transfer device 27.

  The control device 35 shown in FIG. 3 controls the entire picking facility. The control device 35 controls the picking operation in the article storage unit 20, the collection order is input in advance from the outside, the information source 38 that stores the preset collection order, and the information There is provided order changing means 37 for changing the preset collection order stored in the source 38 to form label data and outputting it to the auto labeler 16. FIG. 4 is a flowchart of the operation performed by the control device 35. First, the control device 35 inputs a preset collection order (step-1), and rearranges the input collection order for each preset transfer number unit in the transfer device 27 (step 1). -2) The rearranged order is output to the auto labeler 16 (step-3). Thereby, the shipping label 11 is affixed in order by the auto labeler 16 to the collection container 10 conveyed by the container conveyor 23 by the reverse order rearranged.

The order in which the shipping labels 11 are attached to the collection container 10 by the auto labeler 16 will be described.
In the transfer device 27, for example, as shown in FIGS. 1 (a) and 1 (b), two bag-collected collection containers 10 (an example of a transfer number unit) are transferred from the container conveyor 23 to the container conveyor. 23 is transferred to the transport tray 12 to be transported on the circulating conveyor 21 whose transport direction is the opposite direction. For this reason, the conveyance order of the collection containers 10 in the container conveyor 23 and the conveyance order of the collection containers 10 transferred to the conveyance tray 12 in the circulation conveyor 21 are reversed every two. Accordingly, when the shipping label 11 is issued and pasted to the collection container 10 by the auto labeler 16 in accordance with a preset conveyance order (collection order), the shipping label 11 is not arranged in the original collection order. Become. In order to avoid such a situation, the shipping label 11 is issued to the collection container 10 to the auto labeler 16 in the reverse order in which the original preset collection order is rearranged every two.

  In FIG. 1A and FIG. 1B, as an example, the preset collection order of the shipping label 11 is [1], [2], [3], [4], [5], The case of [6], [7], [8], [9], [10] is described. The shipping label 11 is issued in the order of [2], [1], [4], [3], [6], [5], [8], [7], [10], [9] by the auto labeler 16. And affixed to the collection container 10 that is sequentially conveyed by the container conveyor 23. Then, the collection containers 10 to which the shipping labels 11 are affixed are transferred from the container conveyor 23 to the transport tray 12 conveyed by the circulation conveyor 21 by the transfer device 27 every two. Thereby, in the circulation type conveyor 21, the shipping labels 11 of the collection containers 10 are in a preset collection order [1], [2], [3], [4], [5], [6] , [7], [8], [9], [10], the collection container 10 is conveyed, and the worker H near the article storage unit 20, the worker H near the carriage 32, and other When the worker confirms the shipping label 11, the confirmation work is not complicated, and it is possible to effectively prevent the occurrence of a work mistake.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications are possible.
For example, the shipping label 11 can be attached to the collection container 10 by the auto labeler 16 in consideration of the reverse order of delivery. Here, the reverse delivery order means an order in which the delivery order is rearranged in reverse order for each transport vehicle 39 unit. In the transport vehicle 39, normally, the order of loading the load from the loading port 40 of the loading platform 41 and the order of unloading for each sorting destination (delivery destination) (delivery order) are reversed, and the load is the loading platform 41 of the transportation vehicle 39. On the other hand, since it is so-called first-in / last-out, it is desirable to load in the reverse order of delivery when loading.

  FIG. 5A and FIG. 5B show an example in which loads are loaded and unloaded on the loading platform 41 of the transport vehicle 39 in the reverse order of delivery. When the order of unloading at each sorting destination (delivery destination) is [1], [2], [3], [4], [5] {FIG. 5 (b)}, the reverse delivery order is [ 5], [4], [3], [2], [1]. In this reverse order of delivery, loading is performed in order from the back side of the loading platform 41 (opposite side of the loading port 40 in the loading platform 41). {FIG. 5 (a)}. In this way, by loading the transport vehicle 39 in the reverse order of delivery, it is possible to unload the cargo in order from the load near the loading port 40 at the delivery destination. The labor for searching for the load from the side can be reduced, and the delivery work of the load by the transport vehicle 39 can be performed smoothly.

  When the picking operation of the article to the collection container 10 placed on the conveyance tray 12 from the article storage unit 20 is completed, the collection container 10 placed on the conveyance tray 12 is conveyed to the vicinity of the carriage 32 by the circulation conveyor 21. Is done. When the collection container 10 placed on the transport tray 12 is transported to the vicinity of the carriage 32, the collection container 10 is removed from the transport tray 12 and removed by the operator H arranged in the vicinity of the carriage 32. The collection container 10 is loaded on the cart 32. At this time, the collection container 10 is sealed such that the lid is closed. These collection containers 10 are loaded on a carriage 32 as shipping containers, and a plurality of collection containers 10 loaded on the carriage 32 are loaded on a transport vehicle 39 and conveyed to a sorting destination.

Then, as described above, when considering the reverse order of delivery, the auto labeler 16 is configured so that the plurality of collection containers 10 loaded on the transport vehicle 39 are in the first-in / out order of the transport vehicle 39. The order of the shipping labels 11 to be affixed to the plurality of collection containers 10 can be set.
For example, if 10 loads are loaded in one transport vehicle 39, the unloading order (delivery order) to the sorting destination (delivery destination) is [1], [2], [3], [4]. , [5], [6], [7], [8], [9], [10], the reverse order of delivery is [10], [9], [8], [7], [ 6], [5], [4], [3], [2], [1]. In this case, assuming that the number of transfer units is two, as shown in FIGS. 6A and 6B, the shipping label 11 issuance order (the order of attaching the shipping label 11 to the collection container 10) is as follows. , [9], [10], [7], [8], [5], [6], [3], [4], [1], [2]. Thereby, the shipping label 11 of the collection container 10 conveyed on the circulation type conveyor 21 is [10], [9], [8], [7], [6], [5], [4], [ 3], [2], and [1] are in reverse order of delivery, and the load (collection container 10 in which articles are collected) can be loaded into the transport vehicle 39 in the reverse order of delivery.
In addition, for example, when the picking operation of the article from the article storage unit 20 is interrupted until the unique identification code corresponding to the order from the specific sorting destination in order to provide a break time or the like, the order from the specific sorting destination A shipping label 11 having a unique identification code corresponding to is affixed to a collection container 10 conveyed in the most downstream in the conveyance direction of the container conveyor 23 among the collection containers 10 included in the transfer number unit ( If not, a shipping label 11 having a unique identification code corresponding to an order from a specific sorting destination where the picking operation is interrupted is affixed among the collection containers 10 included in the transfer unit. A unique identification code corresponding to the order of the sorting destination for the collection container 10 conveyed downstream in the conveyance direction of the container conveyor 23 relative to the collection container 10 (to be given) Not attach the shipping label 11, including (not granted) that can also.
In FIG. 7A and FIG. 7B, as an example, the shipping labels 11 attached to the collection container 10 by the circulation conveyor 21 are [1], [2], [3], [4], The case where the collection container 10 is transported in the order of [5] and the picking operation is interrupted by [5] is described. In this case, the shipping label 11 is issued in the order of [2], [1], [4], [3], [5] by the auto labeler 16 and is affixed to the collection container 10 transported on the container conveyor 23. At this time, the shipping label 11 by the auto labeler 16 is not attached to the collection container 10 between [3] and [5]. Then, when the collection container 10 of [5] is transferred from the container conveyor 23 to the circulation conveyor 21 by the transfer device 27, the collection that has been transported between [3] and [5] in the container conveyor 23. The product container 10 is not transferred.
Thereafter, when the picking operation is resumed from [6] next to [5], the shipping label is used in the order of [7], [6], [9], [8], [10]. 11 is issued and affixed to the collection container 10 conveyed on the container conveyor 23. In this case, at the time of interruption, the collection container 10 that is located downstream of the auto labeler 16 on the container conveyor 23 is returned to a position upstream of the auto labeler 16, and then the shipping label 11 is attached to the collection container 10. Resumed.
Accordingly, the picking operation can be interrupted with a unique identification number corresponding to an order from an arbitrary sorting destination, and the collection container 10 after the interruption of the picking operation is not conveyed by the circulation conveyor 21 after the interruption. Therefore, there is no possibility that the worker H will mistakenly recognize the collection container 10, and it is possible to prevent an operation error from occurring.

For example, although the case where the number of transfer units is two has been described, the present invention can be applied even if the number of units of transfer is three or more. Further, for example, the present invention can be applied even if the circulation type conveyor B is replaced with a non-circulation type conveyor. Further, for example, the example using the transport tray 12 has been described. However, without using the transport tray 12, only the collection container 10 is transported by a conveyor having different transport directions, and the transfer device 27 conveys the transport directions different from each other. The present invention can be applied even when the collection container 10 is transferred for each transfer unit.
Further, for example, an example in which the shipping label 11 is automatically pasted by the auto labeler 16 to the collection container 10 conveyed on the container conveyor 23 by the auto labeler 16 has been described. However, the auto labeler 16 is not automatically pasted. Instead, the shipping label 11 issued by the labeler may be attached to the collection container 10 to be transported in order by the operator in the order of issue.

In addition, for example, the case where the shipping label 11 including a unique identification code corresponding to the order from the sorting destination is applied to the collecting container 10 has been described. However, the collecting container 10 corresponds to the order from the sorting destination, respectively. The present invention can be applied regardless of the form as long as a unique identification code is given. For example, an RFID tag is attached to each collection container 10 and an RFID writer is used instead of the auto labeler 16. The present invention can also be applied to the case where information such as a unique identification number corresponding to an order from a sorting destination is sequentially assigned to the RFID tag attached to the collection container 10 by the RFID writer.
Further, for example, the label data in which the collection order preset by the control device 35 is changed is output to the auto labeler 16 and the shipping label 11 is issued. However, the collection data preset by the control device 35 is described. The label data of the product order is output to the auto labeler 16, label data in which the preset collection order is changed is created in the auto labeler 16, and the shipping label 11 is issued based on the created label data. It can also be done.
For example, although the collection container 10 is used as a shipping container, the articles collected in the collection container 10 are transferred from the collection container 10 to another shipping container, and the transferred shipping container is shipped. Even if the collection container 10 itself is not shipped, the present invention can be applied.

H Worker 10 Collection container 11 Shipping label 12 Transport tray 16 Auto labeler 17 Container indicator 20 Article storage unit 21 Circulating conveyor 22 Transport start unit 23 Container conveyor 24 Transport end unit 26 Bag hanging device 27 Transfer device 31 Building 32 Cart 35 control device 36 control means 37 order change means 38 information source 39 transport vehicle 40 loading port 41 loading platform

Claims (4)

A picking facility in which a picking operation is performed in which an article is placed into the collection container in accordance with an order from the classification destination while transporting a collection container to which an order from the classification destination is assigned,
First conveying means for conveying a plurality of collection containers;
A collection container in which a conveyance start section is arranged in line with a conveyance end section of the first conveyance means, and conveys and conveys a plurality of collection containers in a direction opposite to the conveyance direction of the collection containers by the first conveyance means. A second conveying means for performing the picking operation with respect to
Placed in the vicinity of the first transport means on the upper side in the transport direction from the transport end portion of the first transport means, each order for each collection container transported by the first transport means from the sorting destination. An identification code giving means for giving a corresponding unique identification code;
A transfer device disposed at a transfer end portion of the first transfer means and transferring a collection container from the first transfer means to the second transfer means for each preset transfer number unit;
The picking facility, wherein the identification number assigning means assigns the identification code to the collection container in a reverse order in which a preset collection order is rearranged for each unit of transfer number. A collection container that has been picked by the second transport means, a plurality of which is loaded into a transport means such as a transport vehicle and transported to a sorting destination,
The identification code assigning means includes identification codes assigned to the plurality of collection containers so that the plurality of collection containers loaded on the transportation means are in a first-in first-out order with respect to the transportation means. The picking equipment according to claim 1, wherein the order can be set. The identification code giving means is
If picking is interrupted until a unique identification code corresponding to an order from a specific sorter,
A unique identification code corresponding to an order from the specific sorting destination is assigned to a collection container transported at the most downstream position in the transport direction of the first transport means among the collection containers included in the transfer unit. When not to
Of the collection containers included in the transfer number unit, the collection containers are transported downstream in the transport direction of the first transport means from the collection containers that give a unique identification code corresponding to the order from the specific sorting destination. 3. The picking facility according to claim 1, wherein a unique identification code corresponding to the order of the sorting destination is not given to the collection container. In a picking facility in which a picking operation is performed in which an article is put into the collection container according to the order from the sorting destination while conveying the collection container to which an order from the sorting destination is assigned,
First conveying means for conveying a plurality of collection containers;
A transport start section is arranged in line with a transport end section of the first transport means, and transports a plurality of collection containers in a direction opposite to the transport direction of the collection containers by the first transport means, and And using the second transport means for performing the picking work,
Transfer the collection container from the transfer end part of the first transfer means to the transfer start part of the second transfer means for each preset transfer number unit,
A unique order corresponding to the order from the sorting destination in the reverse order in which the preset collection order is rearranged for each preset transfer unit for each collection container conveyed by the first conveying means. An identification code assigning method in a picking facility, characterized in that:

Images