JP5400493B2 - Article sorting method - Google Patents

Description

  The present invention relates to an article sorting method.

  Generally, an article sorting facility includes a main storage facility in which a storage area is set for each article shipped in a case unit, and a sorting storage facility in which a storage area is set for each article to be taken out into an article storage box container. The replenishment of goods to the sorting storage facility is performed from the main storage facility. Registration of the storage location of goods stored and stored in the sorting storage facility cannot be predicted in the future, so the past shipment data is cumulatively analyzed to determine the frequency of shipment and the amount of shipment per shipment. The place is decided.

  A thing with a high shipping frequency and a large shipment volume uses a fluidized shelf (CFR). The storage shelf has a larger storage capacity than the medium-volume shelf described later. In addition, the replenishment (supply) of the goods to the fluidized shelf is performed on the opposite side of the fluidized shelf from the main storage facility, so that the replenishment work hinders the picking work from the outlet. Replenishment work can be done during picking.

  Medium quantity shelves are used for items with low shipment frequency and small shipment volume. The storage capacity of the medium weight shelf is smaller than that of the fluidized shelf, but there is an advantage that many articles can be placed in a small space. Articles in and out of the medium weight shelf are taken in and out from the front outlet of the medium weight shelf. If replenishment is performed during picking, the work conductors of the picker and the replenisher are brought together to get in the way. Generally, replenishment (supply) to the medium-volume shelf is taken out from the main storage facility in a case unit, and the opening is filled before picking is started. In other words, time sharing is used to avoid confusion.

  The article sorting method described in Patent Document 1 relates to an article sorting method using a medium-weight shelf provided in the above-described sorting storage facility. In order to reduce the picking distance by avoiding the frontage of the medium quantity shelf where goods with low shipment frequency and low shipment quantity are stored, the total quantity of goods to be shipped has been replenished as described above from the main storage facility In this method, picking is performed in advance from the front edge of the medium-weight shelf, and it is temporarily placed in the vicinity of the medium-weight shelf, and a necessary amount of articles is picked from there to shorten the work lead. If the shipment quantity is within the storage quantity of the medium quantity shelf, the lead wire can be shortened and the picking ability can be improved.

JP2005-298076

  However, in the article sorting method described in Patent Document 1, even if it is a registered article on a medium-heavy shelf and is usually an article with a low shipment frequency and a small shipment quantity, Due to changes, shipment orders may increase suddenly. Regardless of whether the product is temporarily placed according to Patent Document 1 described above or not temporarily placed, if the order quantity for shipping the registered item on the medium-weight shelf is greater than the storable amount of the medium-weight shelf, During the shipment from the medium-weight shelf, a replenishment work of articles by case unit from the main storage facility to the medium-volume shelf occurs. At this time, the articles to be temporarily placed are temporarily replenished from the main storage facility to the medium quantity shelf during shipment from the medium quantity shelf, and then picked from the medium quantity shelf and temporarily placed. . Further, for articles that are not temporarily placed, the medium storage shelves are replenished from the main storage facility during the shipment of the goods from the medium storage shelves.

  In this way, during the shipment of goods from the medium-weight shelf, if each of the operations of replenishing the material to the medium-weight shelf and picking for temporary placement of the material on the medium-weight shelf overlaps, In combination with the fact that the picking passage is originally set narrow in relation to handling articles with low shipment frequency, a large number of carts are congested on the picking passage, and the picking ability is lowered.

  Furthermore, if the order quantity of the above-mentioned shipment of registered goods on the medium-volume shelf becomes large, whether the article is temporarily placed or not temporarily placed, it will be removed after being removed from the main storage facility. Instead of fully entering the quantity shelf, it is temporarily placed in the vicinity of the medium quantity shelf in units of cases. If a case is temporarily placed in the vicinity of the medium weight shelf, the picking passage around the medium weight shelf will be narrower, and the operator will be searching for the case to pick up. It becomes worse and picking ability is further reduced.

  Further, in the conventional article sorting method, a fixed storage shelf is always provided for articles with a particularly low shipment frequency, and the sorting storage equipment is enlarged.

  An object of the present invention is to improve picking ability even for an unexpected large number of orders of goods with low shipment frequency and low shipment quantity, and without having a fixed storage shelf for articles with particularly low shipment frequency. It is to enable picking.

The invention of claim 1 includes a main storage facility in which a storage area is set for each article shipped in a case unit, and a sorting storage facility in which a storage area is set for each article to be taken out into an article storage box container. The replenishment of goods to the sorting storage facility is performed from the main storage facility, and the sorting storage facility is replenished with the storage unit in which the articles are replenished from the same direction as the article take-out port, and the total amount of articles shipped per shipment. An article sorting method using an article sorting facility having a storage unit comprising movable storage shelves that is stored in a storage unit in which the required amount per shipment basket is replenished from the same direction as the article take-out port When the amount of the goods being shipped is larger than the amount that can be stored in the storage unit that is replenished from the same direction as the article take-out port, the total amount of the goods shipped in units of shipping bags is replenished to a movable storage shelf. The Create a frontage on storage shelves movable, without the articles taken out from the storage unit to be replenished from the same direction as the article outlet, in which to carry out the extraction of the article from the extraordinary frontage of the goods.

  According to the present invention, picking ability is improved even for an unexpectedly large quantity of goods with a low shipment frequency and a small shipment quantity, and a fixed storage shelf is not always provided for an article with a particularly low shipment frequency. Can be pickable.

FIG. 1 is a plan view showing an article sorting facility. FIG. 2 is a plan view showing a storage part of the sorting storage facility. FIG. 3 is a flowchart showing an article replenishment procedure for each storage unit of the sorting storage facility.

  An article sorting facility 1 shown in FIGS. 1 and 2 is provided, for example, in a floor of a distribution warehouse, and includes a main storage facility 2 and a sorting storage facility 3. The main storage facility 2 is received from the outside, and a storage area is set for each article shipped in units of cases. In the storage facility 3 for sorting, a storage area (first to fourth storage units 11 to 14) is set for each article taken out to a collection basket (article storage box container such as an Oricon). Article replenishment to the sorting storage facility 3 is performed from the main storage facility 2.

  Articles that arrive in the article sorting facility 1 by truck or the like are temporarily stored in the main storage facility 2, and the articles stored in the main storage facility 2 are classified according to the shipment frequency and quantity of shipment. 3 to the storage units 11 to 14 and re-store them, and the collection basket loaded in the picking cart 4 is moved to the front of the storage units 11 to 14 where the desired items are stored. The product is taken out and collected in a collection basket on the cart 4, and the articles collected in the collection basket in the cart 4 are inspected and packed in the shipping space 5 and shipped to the outside.

  The collection car is assembled by the Oricon assembly machine 6, etc., and after setting the storage device such as RFID, the picking information transmitted from the host computer is written to the storage device, and the picking information is printed by the labeler. The attached label is affixed and loaded into the cart 4. The worker sequentially takes out and collects the articles in the storage units 11 to 14 according to the display of the picking information read from the storage device by the reading device on the cart 4.

  The host computer of the article sorting equipment 1 is shipped in units of shipments (the quantity of shipments in units to be picked at a time, and an order for one day is divided into one or a plurality of units (for example, twice in the morning and afternoon). When the replenishment calculation from the main storage facility 2 to the sorting storage facility 3 is performed for the required amount of articles in the picking operation), the storage categories (storage sections 11 to 14) of the respective articles are set as follows: (FIG. 3).

  In other words, the sorting storage facility 3 is configured to sort the goods of each type, and the shipment amount per shipment basket is large (SA), medium (A), small (B), and very small (C). The following four storage units 11 to 14 are provided on the premise that goods with high frequency (high frequency to medium frequency) and low frequency (low frequency) are collected.

(Storage Unit 11) (Storage Quantity: Large)
An article with a large amount of shipment and a high shipment frequency is taken out from the main storage facility 2 in PL units loaded on a pallet (PL), replenished and stored in the storage unit 11, and then taken out by the cart 4 and picked. Register with.

(Storage section 12) (Storage quantity: Medium)
Articles with a large shipment volume and high shipment frequency are stored in a storage section 12 consisting of multi-row, multi-stage, and depth-sized flow shelves (CFR) for storing a large number of articles from the opposite direction to the article outlet. Then, the cart 4 is registered to take out and pick from the article outlet. It is assumed that the storage unit 12 is taken out from the main storage facility 2 and replenished and stored in the storage unit 12, and the number of cases in which the storage unit 12 becomes full at the end of picking of the shipping unit from the storage unit 12 or the shipping unit Replenish only the number of cases that are insufficient to pick units.

(Storage section 13) (Storage quantity: small)
Insert an article with a small shipment volume and a high shipment frequency into the storage unit 13 consisting of a fixed shelf (medium quantity shelf) with multiple rows, multiple stages, and one article storage depth from the same direction as the article outlet. It is stored and then registered to be picked up and picked up from the article outlet by the cart 4. It is taken out from the main storage facility 2 in a case unit, replenished and stored in the storage unit 13, and replenished with an arbitrary fixed number of articles.

(Storage Unit 14) (Storage Quantity: Large, Medium, Small)
i. If it is an order for a sudden shipment of an article registered in the storage unit 13 (medium-volume shelf) and the number of orders is larger than the amount that can be stored in the storage unit 13 (the maximum storage quantity of the storage unit 13), then this article is temporarily The frontage is made in a storage unit 14 composed of a movable storage shelf having a multi-row, multi-stage, depth size for storing one article. Then, this article is taken out from the main storage facility 2 for the total amount of shipment in units of shipments, replenished and stored in the storage unit 14, and then taken out by the cart 4 and picked. The storage unit 14 is made at a position where it can be easily taken out in the vicinity of the cart path of the sorting area. In this case, replenishment from the main storage facility 2 to the storage unit 13 (medium weight shelf) is not performed, and the article is not taken out from the storage unit 13, and the article is taken out from the temporary opening of the storage unit 14 and picked.

  In the replenishment of articles in units of shipments from the main storage facility 2 to the storage unit 14 described above, it is rounded up from the main storage facility 2 to the case unit, taken out in case units, replenished to the storage unit 14, and from the storage unit 14 After completion of the picking operation in units of the shipping container, the article remaining in the temporary opening of the storage unit 14 is moved to the corresponding storage unit 13 (medium shelf) (the storage unit 13 using the same article as the article as a registered article) And store.

  However, as another method for replenishing articles from the main storage facility 2 to the storage unit 14, the total amount of shipments in units of shipping baskets may be taken out from the main storage facility 2 in units of roses, or shipped. The total shipment amount of the unit may be divided into a case portion and a rose portion, the case portion may be taken out from the main storage facility 2 and replenished, and the rose portion may be taken out from the storage unit 13 (medium amount shelf) and replenished.

  ii. Depth size for storing multiple items in a multi-row, multi-stage, one item each time an order for shipment is made for an item with a particularly low shipment frequency, not a registered item in the storage unit 12 (CFR) or storage unit 13 (medium-volume shelf) The storage unit 14 is made of movable storage shelves. Then, this article is taken out from the main storage facility 2 for the total amount of shipment in units of shipment (total amount picking), stored in the storage unit 14, and then taken out by the cart 4 and picked. The storage unit 14 is made at a position where it can be easily taken out in the vicinity of the cart path of the sorting area.

According to the article sorting equipment 1 of the present embodiment, the following operational effects can be obtained.
(a) When the number of orders (the required amount in units of shipping baskets) for registered articles in the storage unit 13 (medium-volume shelf) is larger than the storable amount of the storage unit 13, the storage unit 13 (medium-volume shelf) The replenishment of the frontage is not carried out, and the number of items corresponding to the number of orders are taken out from the main storage facility 2 and stored in the temporary entrance of the storage unit 14 consisting of a movable storage shelf. Place it in a nearby location where it can be easily removed. By picking the temporary article of the storage unit 14 with the cart 4, even if there is an unexpectedly large quantity of goods with a low shipment frequency and a small shipment quantity, the lead of the cart 4 for picking is shortened. In addition, the picking ability can be improved without causing the traffic jam of the cart 4.

  (b) The number of orders (required quantity per unit of shipment) for an order for an article that has a particularly low shipment frequency and is not a registered article in the storage unit 12 (CFR) or the storage unit 13 (medium load shelf) ) Is taken out of the main storage facility 2 and stored in a temporary opening of the storage unit 14 composed of a movable storage shelf, so that it is not necessary to prepare a fixed storage shelf for the article. Even if the number of varieties of articles increases, the sorting storage facility 3 can be picked without increasing the size.

  (c) The replenishment of the temporary storage of the storage unit 14 consisting of movable storage shelves of the registered items in the storage unit 13 (medium-volume shelf) is performed by rounding up the number of items ordered from the main storage facility 2 in units of cases. After picking up in units and picking the number of orders from the storage unit 14 (movable storage shelf), the article remaining in the temporary opening of the storage unit 14 (movable storage shelf) is stored in the storage unit 13 (inside Move to the quantity shelf and store. As a result, the storage unit 14 (movable storage shelf) can be created only when there is an unexpected need in the sorting storage facility 3, and the sorting storage facility 3 can be made compact.

  The present invention uses a storage unit that replenishes a movable storage shelf with articles for a total shipment amount in units of shipping baskets. This improves picking capability even for sudden large orders of goods with low shipment frequency and low shipment volume, and enables picking of items with low shipment frequency without having a fixed storage shelf. There is to do.

1 Item Sorting Facility 2 Main Storage Facility 3 Sorting Storage Facility 11 Storage Unit 12 Storage Unit (CFR)
13 Storage Department (Medium Weight Shelf)
14 Storage Department (movable storage shelf)

Claims (3)

A main storage facility with a storage area set for each item shipped in a case unit, and a sorting storage facility with a storage area set for each item to be taken out into an article storage box container. Article replenishment is performed from the main storage facility, and the sorting storage facility includes a storage unit in which articles are replenished from the same direction as the article take-out port, and a movable storage shelf in which a total amount of articles is replenished in units of shipments. An article sorting method using an article sorting facility provided with a storage unit comprising:
The amount required in the shipping basket is larger than the amount that can be stored in the storage unit replenished from the same direction as the article take-out port for the articles stored in the storage unit replenished from the same direction as the article take-out port. In this case, by replenishing the movable storage shelves with the total amount of goods shipped per shipment, the temporary storage port for the goods is made on a movable storage shelf and replenished in the same direction as the goods outlet. An article sorting method in which an article is taken out from a temporary opening of the article without taking out the article from the storage unit. A main storage facility with a storage area set for each item shipped in a case unit, and a sorting storage facility with a storage area set for each item to be taken out into an article storage box container. Article replenishment is performed from the main storage facility, and the sorting storage facility includes a storage unit in which articles are replenished in PL units loaded on a pallet, and a storage unit in which articles are replenished from the direction opposite to the article take-out port, in an article sorting method using a storage unit which article is replenished from the same direction as the takeout article, an article sorting facilities article shipments total content comprising a storage unit comprising a movable storage shelves to be replenished shipment deadline units There,
The amount required in the shipping basket is larger than the amount that can be stored in the storage unit replenished from the same direction as the article take-out port for the articles stored in the storage unit replenished from the same direction as the article take-out port. In this case, by replenishing the movable storage shelves with the total amount of goods shipped per shipment, the temporary storage port for the goods is made on a movable storage shelf and replenished in the same direction as the goods outlet. An article sorting method in which an article is taken out from a temporary opening of the article without taking out the article from the storage unit. In the replenishment of the movable storage shelf, it is rounded up from the main storage facility in the case unit and taken out in the case unit, and after the picking operation in the shipping basket unit is completed, the articles remaining in the temporary opening of the movable storage shelf are removed. 3. The article sorting method according to claim 1 or 2, wherein the article is moved and stored in a storage unit that is replenished from the same direction as the article take-out port.

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