JP2002205811A - Picking method and picking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate manual work of palletizing and depalletizing and to facilitate the mechanization by miniaturizing the pallet form of load warehoused in and delivered from a storage warehouse. SOLUTION: In this picking method, wherein a standard pallet 101 of wide size and a narrow width pallet 102 of narrow size are jointly used, the load loaded on the standard pallet 101 is transferred onto the narrow width pallet 102 and warehoused into the storage warehouse 110, and the load on the narrow width pallet 102 delivered from the storage warehouse 110 is carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method and an apparatus for picking articles.

[0002]

2. Description of the Related Art Recently, with the maturation of the market, diversification of goods, reduction of the number of order units, frequent ordering, and the like have occurred. There is a tendency. In other words, pallet order is changed to layer unit or case unit, case unit order is changed to middle box unit (dozen unit) or bulk unit (one unit), and the conventional warehouses such as automatic warehouses are used. Picking of lost items has become complicated and inefficient.

[0003] In addition, pallets used for transporting and storing articles have a wide width of, for example, 1100 mm square and are reused at each stage of physical distribution.

[0004] As a conventional picking method,
As described in Japanese Patent Publication No. Hei 3-14721, there are the following methods (a) and (b).

(A) In a method of depalletizing articles stored in multiple layers on a pallet and storing them in a single unit, and packing a required quantity of articles, out of the required quantity, articles in a single unit are depalletized. Items are directly carried out and packed, and for fractional items less than one layer,
A method of taking out a necessary fraction of articles from the temporary storage facility among articles depalletized and stored in the temporary storage facility in units of one layer in advance, and packing them.

(B) In a method of depalletizing articles stacked and stored in multiple layers on a pallet in a single unit and packing a required quantity of articles, of the required quantity, a single unit of articles is depalletized. Items are directly carried out and packed, and for fractional items less than one layer,
Depalletize one part of the goods, take out the required fraction of the goods directly, pack them up, and temporarily store the remaining parts obtained by subtracting the required number of parts from the quantity of the above one part How to store in equipment.

[0007]

The prior art has the following problems. Since only wide-width pallets are used as pallets to be put in and taken out of the storage, the package becomes large. Therefore, when palletizing and depalletizing by hand, the workability is extremely poor because workers cannot reach from the front to the back of the pallet, and when palletizing and depalletizing by mechanical work, the palletizing device and depalletizing device are large. In addition, there are difficulties in semi-automatic picking and mechanization.

In the conventional method (a), a necessary fraction of articles are taken out from the temporary storage facility, so it is necessary to secure sufficient stock in the temporary storage facility.

[0009] In the conventional method (b), the remaining articles obtained by carrying out the necessary articles from the depalletized one-layer articles are stored in the temporary storage facility. It is necessary to check the presence of space each time.

In both of the conventional methods (a) and (b), while the articles depalletized from the preceding pallet are stored in the temporary storage facility, the single-layered articles depalletized from the subsequent pallet are directly shipped (conventional methods ( a), (b)) Of the articles depalletized from the subsequent pallet, the required number of articles that are less than the required fraction are directly shipped (conventional method (b)). Can not.

When the picking method of the present invention is applied, the articles are stored in the case in units of one unit, or in the case of the middle box in which a plurality of items are wrapped, and the plurality of cases are stored in the case on a pallet. And can be handled in a plurality of layers.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a compact pallet loading and unloading system for a pallet, facilitate palletizing and depalletizing, and facilitate the mechanization.

It is another object of the present invention to smoothly ship a required number of articles without having to secure inventory of the articles in advance or to confirm whether or not there is a space for receiving surplus articles each time. In addition, the object is to first-in / first-out articles.

[0014]

According to the first aspect of the present invention, there is provided a picking method in which a wide standard pallet and a narrow narrow pallet are used together. The cargo is transshipped to a pallet, entered into the storage, and the load of the narrow pallet discharged from the storage is carried out.

According to a second aspect of the present invention, a case storing a plurality of articles is stored in a pallet unit in which a plurality of layers are stacked on a wide-width standard pallet, and the case can be taken out in a pallet unit. And a case unit storage section for storing and storing cases accommodating a plurality of articles on a narrow pallet of a narrow width in case units, and enabling the cases to be taken out in case units,
This is a picking method for shipping the articles from the pallet unit storage section and the case unit storage section. If the stock quantity P in the case unit storage section is larger than the total shipment number O for the same kind of articles, When the required number O of goods is shipped from the middle and the number of stocks P in the case unit storage section is smaller than the total number of shipments O, the entire number of articles with the stock number P in the case unit storage section is shipped and the shortage number (O−
P) is rounded up to the number of layer units of the pallet, the cases corresponding to the calculated number of layers are taken out of the pallet unit storage section, and the shortage (OP) of the articles is shipped out of the cases corresponding to the number of layers. The surplus cases after shipment are stacked and stored on a narrow pallet in a case unit storage section.

The invention according to claim 3 is the invention according to claim 2.
In addition, the narrow pallet in the case storage section
Cases containing a number of items
Form storage units and store goods in units of one.
A bulk storage unit is also formed, which also contains bulk transport containers.
Then, for the same kind of article, the stock quantity P
_PIs the total number of shipments O_PWhen there is more, store in loose units
The required number O from the department_PShip the goods of
Tube stock P_PIs the total number of shipments O_PWhen less
Is the number of stock P in the bulk storage unit_PShipment of all items in
And the shortage (O_P−P_P) Rounded up to the number of cases
Then, the cases for the calculated number of cases are
Out of this case and_P−P_P)of
Items are shipped, and the surplus items after shipment are stored in bulk unit storage units.
It is intended to arrive in.

According to a fourth aspect of the present invention, a case storing a plurality of articles is stored in a pallet unit in which a plurality of layers are stacked on a wide-width standard pallet, and the case can be taken out in a pallet unit. And a case that stores a plurality of articles in a narrow pallet of a narrow width in a case unit and stores the case, and the case can be taken out in the case unit, and a pallet unit storage class. It has a sorting / conveying line for receiving articles shipped from the case unit storage section and sorting the articles into a plurality of branching assortment lines. The control computer uses a pallet unit storage section and case unit storage based on the shipping plan data. Control the sorting and ship those items from the pallet storage category and the case storage category to the sorting transport line. The control computer, when the number of stocks P in the case unit storage section is greater than the total number of shipments O for the same kind of article, ships the required number O of articles from the case unit storage section, If the number of stocks P in the unit storage section is smaller than the total number of shipments O, the total number of articles with the number of stocks P in the case unit storage section is shipped, and the shortage number (OP) is rounded up to the number of pallet layers. Then, the cases corresponding to the calculated number of layers are taken out of the pallet unit storage section, and the shortage (OP) articles are shipped out of the cases corresponding to the number of layers, and the surplus cases after the shipment are stored in the case unit storage section. And stored in a narrow pallet.

According to a fifth aspect of the present invention, in addition to the fourth aspect of the present invention, a case unit storage section is formed by stacking cases accommodating a plurality of articles in a case unit on the narrow pallet of the case unit storage section. In this case, a bulk unit storage unit in which bulk containers, each of which stores a single article, is mixed, can be formed.
When towards the stock number P _P rose unit storage unit is greater than the shipping total number O _P is to ship the goods of the required number of O _P from among the rose unit storage unit, is more of the stock number P _P of the Roses unit storage section when less than shipping total O _P are shipped the total number of articles in stock P _P rose unit storage unit, the number of lacking (O P _{-P P)} were rounded up calculated number of cases units, number of the calculated case case the withdrawn from the case unit storage unit shipped goods unmoving feet number from within the case (O P _{-P P),} in which the surplus articles after the shipment was to stock the rose unit storage unit.

[0019]

According to the first aspect of the invention, there is the following operation (1). (1) Transfer the load from the wide standard pallet to the narrow narrow pallet, enter the storage,
Because the narrow pallets that have been unloaded from storage are unloaded,
The packaging of narrow pallets becomes compact. Therefore, when palletizing and depalletizing by hand, the worker can reach from the front to the back of the pallet and the workability can be greatly improved, and when palletizing and depalletizing by mechanical work, the palletizing device and depalletizing device Can be simplified, and semi-automatic and mechanized picking can be easily performed.

According to the second and fourth aspects of the present invention, the following (2) to (7)
Has the effect of (2) The cases stored in the case unit storage category are the surplus cases that are less than one layer unit of the standard pallet among the cases taken out from the standard pallet in the pallet unit storage category. If it is stored on a wide standard pallet, only a very small portion of the loadable space of the standard pallet will be used, and the storage efficiency of the case unit storage category will be extremely poor. In the present invention, since the above-mentioned surplus case is stored on a narrow narrow pallet,
It is possible to improve the storage efficiency of the case unit storage classification.

(3) When the stock quantity P in the case-based storage section is zero, shipping of the case from the case-based storage section is not considered from the beginning, and the case is shipped from the pallet-based storage section. Therefore, it is not necessary to secure stock in advance in the case storage section, and the handling is good.

(4) When the surplus cases of the cases taken out of the pallet unit storage section after shipment are received in the case unit storage section, the entire inventory of the case unit storage section is empty because all the cases have been shipped. There is no need to check each time whether or not there is a space for receiving excess cases in the case-based storage section, and the handling is good.

(5) When the number of stocks P in the case unit storage section is smaller than the total number of shipments O, the total number of stocks P in the case unit storage section is shipped, so the number of shipments from the case unit storage section is counted. It can be shipped quickly and easily without any need.
In addition, since the cases are taken out from the pallet storage section in units of layers, it is not necessary to count the number of pieces taken out from the pallet storage section in this case as well, and the case can be taken out quickly and easily.

(6) Since the surplus of the cases taken out from the pallet unit storage section is to be received in the case unit storage section, an overflow area for temporarily storing the surplus is attached to the pallet unit storage section. There is no need, and there is no need to post-process the surplus cases temporarily stored in the overflow area, so that the handleability is good.

(7) When the number of stocks P in the case unit storage section is smaller than the total number of shipments O for cases of the same kind of article, the goods are shipped from both the case unit storage section and the pallet unit storage section. Since all the stocks P in the unit storage section are always shipped, first-in / first-out of articles is guaranteed.

According to the third and fifth aspects of the present invention, the following (8) to (1)
There is the action of 3). (8) For narrow pallets stored in the case storage section,
Cases of the same kind of goods and bulk transport containers are mixed, so that the storage efficiency of the case unit storage category can be improved, and when it is necessary to remove the required number of articles from both the case and bulk transport containers, those At the same time, the articles can be taken out at the same time, and the article can be taken in and out quickly.

[0027] (9) Inventory number P _P rose unit storage unit in the case of zero, shipment of goods from the rose unit storage portion is not taken into account from the beginning, it is shipped from the case unit storage unit. Therefore, there is no need to secure stock in advance in the bulk unit storage unit, and handling is good.

(10) When the surplus articles after shipment of the articles taken out from the case unit storage section are received in the bulk unit storage section, the entire stock in the bulk unit storage section is shipped out and becomes empty. It is not necessary to check each time whether or not there is a space for receiving the surplus articles in the bulk unit storage unit, and the handling is good.

[0029] (11) When people of inventory P _P rose unit storage unit is less than the shipping total number O _P, inventory rose unit storage portion P
_Since all _Ps are shipped, there is no need to count the number of shipments from the bulk unit storage unit, and shipping can be performed quickly and easily. Also,
Since cases are taken out of the case unit storage unit in case units, in this case also, it is not necessary to count the number of cases taken out of the case unit storage unit, and the case can be taken out quickly and easily.

(12) Since a surplus of the articles in the case taken out of the case unit storage unit is received in the bulk unit storage unit, an overflow area for temporarily storing the surplus is stored in the case unit storage unit. There is no need to attach any additional items, and there is no need to post-process the surplus articles temporarily stored in the overflow area, so that the handleability is good.

[0031] (13) The same kind article, when towards the inventory P _P rose unit storage portion is less than shipping total O _P is shipped from both rose unit storage portion and the casing unit storage unit, rose unit since the inventory P _P of the storage unit is always the total number shipped, it is guaranteed first-in / first-out of the article.

[0032]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic diagram showing a picking device, FIG. 2 is a schematic diagram showing a case order picking method using a picking device, FIG. 3 is a schematic diagram showing a random order picking method using a picking device, and FIG. FIG. 5 is a schematic view showing a package of a pallet, FIG. 5 is a sectional view showing a storage, and FIG. 6 is a front view showing the storage.

As shown in FIG. 1, the picking device 10 comprises:
The pallet-based storage section 20 and the case-based storage section 30 are processed based on the shipping plan data transferred from the control computer 11 so as to process a batch order in which a plurality of stores entering the same delivery direction are combined into one. The control is performed, and the articles are sorted and transported to the transport line 50 in case units and loose units (one unit) according to the batch order. Then, in the sorting / conveying line 50, a case order branching line 60A and a branch ordering line 60B for a case order, which are branched for each batch order of the case order and the loose order, having the same delivery direction, are formed. Sorts products in units and loose units. Further, in the branch load arranging lines 60A and 60B, the articles in units of cases and in units of bulk are sorted out according to stores, paid out, and loaded into delivery vehicles.

At this time, in the picking device 10, FIG.
As shown in the figure, a standard pallet 101 of a wide width (for example, 1100 mm × 1100 mm) and a narrow pallet (for example, 1320 mm × 550 m)
m or 1100 mm x 660 mm). In the present embodiment, the case 1 of one layer among the cases that are stacked in a multilayer shape on the standard pallet 101 can be loaded in the narrow width size 102. In addition, the pallet load of the narrow width pallet 102 can be mixed with the above-described case 1 containing a plurality of articles and the loose transport container 2 such as a tray, a container, or an opened case that accommodates the articles one by one. .

The pallet unit storage section 20 stores cases accommodating a plurality of articles in pallets stacked on the standard pallet 101 in a plurality of layers, and enables the depalletizing device 21 to take out the cases in pallet layers. I do.

The case-unit storage section 30 stores and stores cases accommodating a plurality of articles on the narrow pallet 102 on a case-by-case basis, and allows the cases to be taken out on a case-by-case basis.

In the case-unit storage section 30, cases can be stacked on the narrow pallet 102 in case units as described above, and can also be mixed in the above-mentioned bulk transport container in which articles are accommodated one by one.

Therefore, in the case unit storage section 30, a case unit storage section 30A in which the cases 1 accommodating a plurality of articles are loaded in the narrow pallet 102 in case units is formed, and the articles are accommodated in units of one. Bulk transport container 2
Are also formed together with the loose unit storage section 40A.

However, the case order picking method and the loose order picking method by the picking device 10 are executed as follows.

(Case Order Picking Method) (FIGS. 1 and 2) (A) For a case of the same kind of article, the calculation formula for generating the total number (required number) O of batch orders is as follows. Here, P is the number of stocks in the case unit storage section 30 (case unit storage section 30A), F is the number of pallets taken out of the pallet unit storage section 20, and C is one pallet in the pallet unit storage section 20. The number of cases, S, is the number of surplus cases after the cases taken out of the pallet unit storage section 20 are shipped to the sorting and conveying line 50. O = P + FC-S Equation 1 F = (OP) / C Equation 2 S = P + FC-O Equation 3

(B) The control computer 11 uses the equations (1) to (3)
Is controlled as follows. (1) According to OP, when O <P, that is, when the stock quantity P of the case unit storage section 30 is larger than the total number of shipments O, the necessary number O cases are sorted from the case unit storage section 30. The product is shipped from the transport line 50 to each of the branch ordering lines 60A for case orders. At this time, (a) a method of taking out only the required number O from the case unit storage section 30 and shipping it to each branch packing line 60A, and (b) taking out the total number of stocks P from the case unit storage section 30 and The required number O is shipped to each branch loading line 60A, and the surplus cases after the shipment are stored in the case unit storage section 30 according to the following (3).
There is a way to return to.

(2) According to OP, when O ≧ P, that is, when the number of stocks P in the case unit storage section 30 is smaller than the total number of shipments O, the total number of cases of the stock number P in the case unit storage section 30 is Is shipped from the sorting / conveying line 50 to each of the branch packing lines 60A, the shortage number (OP) is rounded up to the number of pallet units according to Equation 2, and the calculated value is used as picking data of the depalletizing device 21. The depalletizing apparatus 21 takes out the cases (FC pieces) corresponding to the calculated number of layers F from the pallet unit storage section 20, and depletes the number (O-
The case P) is shipped from the sorting / conveying line 50 to each of the branch packing lines 60A.

(3) The sorting / conveying line 50 distributes and ships the required number (OP) of the cases taken out of the pallet unit storage section 20 and the case unit storage section 30 to each branch packing line 60A. Then, the surplus case S = P + FC-O after the shipment is returned or received to the case unit storage section 30.

(4) In the above (2), when the number of stocks P in the case unit storage section 30 is smaller than the total number of shipments O, the total number of shipments P from the case unit storage section 30 is The shipment of the shortage number (OP) from the storage section 20 gives priority to the shipment from the case unit storage section 30. As a result, the surplus return in (3) above is taken out from the pallet unit storage section 20, and the first-in / first-out of articles can be guaranteed. If there is no need for first-in first-out / first-out depending on the type of the article, the priority of shipment from the case unit storage section 30 may be withdrawn.

Note that the picking device 10 includes the pallet unit storage section 20 and the pallet unit storage section 20 for reading the article type displayed on the case paid out from the pallet unit storage section 20 and the case dispensed from the case unit storage section 30. A barcode reader 51A for sorting confirmation is provided at the outlet of the case unit storage section 30 and a branching port from the sorting / conveying line 50 to each branch loading line 60A, and is carried into the case unit storage section 30 from the sorting / conveying line 50. A return / arrival confirmation barcode reader 52 is provided at the mouth. Thereby, the control computer 11 recognizes the type displayed in the case of being taken out to the sorting / conveying line 50 based on the reading result of the barcode readers 22 and 31, and recognizes the type of the type to be shipped to each branch packing line 60A. In order to divide the required number of cases from the sorting / conveying line to the packing line 60A, the sorting confirmation barcode reader 51A controls the execution of the branch. Further, the control computer 11 reads a return label, which will be described later, attached to the surplus case generated in each of the packing lines 60A by the return / arrival confirmation barcode reader 52, and stores the surplus case from the sorting / conveying line 50 in case units. Return to section 30.

(Bulk order picking method) (FIG. 1,
Figure 3) (A) for the same varieties article, the following calculation formulas for creating shipping total (necessary number) O _P batch orders. However, _{P P} is inventory rose transport container 2 in the case the unit storage division 30 (Roses unit storage portion 40A), _{F P} is the number of cases retrieved from the case unit storage division 30 (case unit storage portion 30A), C _P is the number of articles for one case, S
_P is the number of surplus articles after the articles in the case taken out from the case unit storage section 30 are shipped to the sorting and conveying line 50. _{O P = P P + F P} C P -S P ... Formula _{1 F P = (O P -P} P) / C P ... Equation _{2 S P = P P + F} P C P -O P ... Equation 3

(B) The control computer 11 uses the equations (1) to (3)
Is controlled as follows. ₍₁₎ O _P -P _P, when the O _P <P P, that is, when people of the stock number _{P P} rose unit storage unit 40A is greater than the shipping total number _{O P} is required from the rose unit storage section 40A Number O
The goods of _P are shipped from the sorting and conveying line 50 to each of the branch load alignment lines 60B for bulk order. At this time, (a)
Extraction how to ship only to the extraction each branch loads flush line 60B required number O _P from rose unit storage portion 40A, the total number of inventory P _P from (b) rose unit storage portion 40A, the required number O _P from the Is shipped to each of the branch cargo assembling lines 60B, and the surplus articles after the shipment are stored in the unit storage section 4 according to the following (3).
There is a method of returning to 0A.

(2) O_P−P_PBy O_P≧ P_PNoto
In other words, the stock quantity P of the bulk unit storage unit 40A_PIs shipped more
Total number O_PWhen the number is smaller,
Stock quantity P_POf all items from the sorting and conveying line 50
Shipment to branch loading line 60B, shortage (O_P−
P_P) Is rounded up to the number of case units by Equation 2, and
Picked data from the case unit storage category 30
Data. Number of calculated cases F_PGoods (F_PC_PPieces)
Is retrieved from the case unit storage section 30, and the shortage number (O _P
−P_P) Sorting of goods from the transport line 50
Ship to line 60B.

[0049] (3) sorting conveyor line 50, the case unit storage segment 30, the article of the required number of articles taken from rose unit storage section 40A _(O P -P _P) in each branch loads flush line 60B distribution ship, excess articles S _P output after the shipment
= A _{P P + F P C P -O} P to return or arrival to Rose unit storage portion 40A.

[0050] (4) In above (2), when towards the inventory P _P rose unit storage portion 40A is less than shipping the total O _P, and the total number of shipments in stock P _P from rose unit storage portion 40A , the shipments of shortage from the case unit storage division 30 _{(O P} -P P), priority is given to the shipment from the rose unit storage section 40A. As a result, the surplus return in the above (3) is taken out from the case unit storage unit 30A of the case unit storage section 30, and the first-in / first-out of articles can be guaranteed. If there is no need for first-in / first-out depending on the product type, the priority of shipment from the loose unit storage unit 40A may be withdrawn.

The picking device 10 serves as a kind-reading bar code reader for reading the goods to be dispensed from the loose unit storage section 40A or the goods type displayed on the transport container, which will be described later, at the exit of the case unit storage section 30. Using the above-described barcode reader 31 provided, a sorting confirmation barcode reader 51B is provided at the branching port from the sorting / conveying line 50 to the branch loading line 60B, and the sorting / conveying line 50 is returned to the bulk unit storage unit 40A. The above-described bar code reader 52 is used as a bar code reader for confirming arrival. Thereby, the control computer 11
Recognizing the articles to be taken out to the sorting / conveying line 50 or the kind displayed on the carrying container 2 by the kind-reading barcode reader 31 and sorting the required number of articles of the kind to be shipped to each packing line 60B. Transfer line 50
The branching is managed by the sorting-confirmation barcode reader 51B so as to branch to the load assortment line 60B. Further, the control computer 11 reads the surplus articles generated at each of the packing lines 60B or a return label, which will be described later, attached to the transport container 2 by the return / arrival confirmation barcode reader 52, and sorts the surplus articles into the sorting transport line. 50 to the unit storage section 40A.

The picking device 10 is a random order picking device.
When executing the King method, the stock of the bulk unit storage unit 40A
Number P_PIs the total number of shipments O_PWhen less, O_P
−P _POf cases F calculated by rounding up to the number of case units_Pof
The case picking is performed in the case unit storage category 30 described above.
Pallet unit storage category 20 or
The depalletizing device 21 may be used,
Take out items stored in a box pallet
May be shipped.

Hereinafter, a specific configuration of the picking device 10 will be described. (Pallet unit storage category 20) Pallet unit storage category 2
0 means that an automatic warehouse can be used;
No. 1 pallet load (FIG. 4A) is stored.

However, the pallet unit storage section 20 is a single-item standard pallet 101 (all layers of one pallet are of the same type of product) or a layer-unit combination standard pallet 101 (all types of different types of product in each layer of the pallet). ) May be brought into the depalletizing device 21 by a conveyor line or a forklift truck.

(Case-based storage section 30) The case-based storage section 30 includes a storage 1 as shown in FIGS.
10 can be used.

The storage 110 includes a plurality of storage shelves 111 in a multi-stage and multi-row configuration, and any one of the plurality of storage shelves 111 is used as an entrance / exit frontage 112. The entrance / exit frontage 112 uses the same frontage for both the entrance / exit frontage and the exit frontage. However, the storage 110 may use different entrances as the entrance / exit frontage. The storage 110 is a stacker crane 1
13, the pallet load (FIG. 4B) of the narrow pallet 102 received from the entrance / exit frontage 112 is moved to one of the storage shelves 111 by the stacker crane 113, and the pallet load of each storage shelf 111 is stacked. The crane 113 moves to the entrance / exit frontage 112.

In the storage 110, a conveyor 114 is arranged along the entrance / exit frontage 112 so that the pallet load of the narrow pallet 102 can be carried into and out of the entrance / exit frontage 112 by the conveyor 114. The storage 110 is a conveyor 114
A palletizing device 115 is disposed upstream of a portion corresponding to the entrance / exit frontage 112 of the pallet, and a plurality of cases 1 and a bulk transport container 2 each accommodating a plurality of articles are placed in the narrow pallet 10.
2 can be stored as pallet load. Also,
In the storage 110, a depalletizing device 116 is disposed downstream of a portion corresponding to the entrance / exit frontage 112 of the conveyor 114, so that the pallet load of the narrow pallet 102 that has been discharged can be unloaded and transported in case units.

The storage 110 is provided with a loading / unloading transfer 118 (motor), which is moved up and down between a lower standby position and an upper working position with respect to the transport level of the conveyor 114 by a lifting / lowering device 117 comprising an air tube or the like, in front of the loading / unloading frontage 112. 118A). At the standby position, the loading / unloading transfer 118 allows the pallet load of the narrow pallet 102 supplied from the palletizing device 115 to be carried into the loading / unloading frontage 112 by the conveyor 114. The loading / unloading transfer 118 rises from the standby position to the working position, stores the pallet load on the conveyor 114, stores the pallet load into the loading / unloading frontage 112, or receives the pallet load discharged from the loading / unloading frontage 112. Entry and exit transfer 1
Numeral 18 lowers from the working position to the standby position, and
The pallet load received from 12 is delivered to the conveyor 114.

In the storage 110, the stacker crane 11
3. The narrow pallet 10 which has been delivered to the entrance / exit frontage 112 by 3
When the entire case of the pallet load 2 is carried out, the depalletizing device 116 is used to carry out a required number of articles from a part of the case 1 of the case unit storage unit 30A of the pallet load or the bulk transport container 2 of the bulk unit storage unit 40A. When you do
The operator takes out only the required number of cases 1 or articles from the pallet load at the loading / unloading frontage 112, and returns the remaining pallet load to the storage shelf 111 by the stacker crane 113.
At this time, the storage box 110 has the case picking display section 36 and the loose picking display section 3 above the entrance / exit frontage 112.
7 and the entrance / exit frontage 1 by the stacker crane 113
The required number of cases 1 to be displayed by the case picking display unit 36 from the pallet load of the narrow pallet 102 delivered to
And picking the required number of articles displayed by the loose picking display section 37 from the loose transport container 2,
These picked cases 1 and articles are conveyed to a conveyor 11.
Unload at 4. A picking request lamp / completion button switch 38 for the operator is provided above the entrance / exit frontage 112.

The storage box 110 unloads all cases 1 of the pallet load of the narrow pallet 102 discharged to the entrance / exit frontage 112 by depalletizing device 116 in units of cases, and transfers the surplus cases after the unloading to the palletizing device 115. Returning to the upstream, the excess case of the same kind of article can be re-entered into the loading / unloading frontage 112 as a pallet load loaded on the narrow pallet 102 by the palletizing device 115. At this time,
If the loose transport container 2 is mixedly loaded on the pallet load of the narrow pallet 102 that has been unloaded, the loose transport container 2 is also carried out together with the other case 1 by the depalletizing device 116,
Thereafter, the palletizing device 115 re-enters the pallet with the surplus case 1.

The storage 110 is provided with an empty pallet magazine 119 at the most downstream side and the most upstream side along the conveyor 114.
A and 119B are installed. Empty pallet magazine 11
9A corresponds to the depalletizing device 116, and accumulates the narrow-width pallets 102 whose entire cases have been discharged by the depalletizing device 116. The empty pallet 102 of the empty pallet magazine 119A is transferred to the empty pallet magazine 119B by the stacker crane 113. The empty pallet magazine 119B corresponds to the palletizing device 115, and supplies an empty pallet to the palletizing device 115. The transfer of the empty pallets from the empty pallet magazine 119A to the empty pallet magazine 119B may be performed not by the stacker crane 113 but by an empty pallet transfer conveyor attached to the conveyor 114.

The storage 110 is a load height detector 12 for detecting the height of a pallet load received from the loading / unloading frontage 112.
0, and the shelf height H of the storage shelf 111, which is the storage destination of the load, can be adjusted according to the height of the pallet load detected by the load height detector 120. In this embodiment, the light emitting and receiving devices constituting the load height detector 120 are installed on both sides of the loading / unloading frontage 112, and the height of the pallet load is automatically detected at the same time as the loading / unloading frontage 112 is positioned. I do. Further, the storage box 110 has a plurality of pallet trays 121 forming a pair on the left and right sides on the left and right sides of the storage rack 111, which are fixed in multiple stages at small pitches up and down. The shelf height is adjusted by controlling in which pallet tray 121 the 102 is inserted.

In the picking device 10, the case of one layer taken out from the standard pallet 101 of the pallet unit storage section 20 is once paid out to the sorting / conveying line 50, and the surplus after being shipped from the sorting / conveying line 50 to the branch packing line 60A. Since only the cases are transshipped to the narrow-width pallets 102 and received in the case-based storage section 30, the storage amount of the case-based storage section 30 is always less than one layer of the pallet load in the pallet-based storage section 20, and the storage burden is increased. Can be reduced.

In the picking device 10, the entry of the case into the case unit storage section 30 (storage box 110) is not limited to the excess case of the pallet unit storage section 20, but is carried in by another route from the pallet unit storage section 20. The pallet load of the standard pallet 101 may be transferred to the narrow pallet 102 and stored.

For a product type in which the packing form unit of the goods received in the picking device 10 is not aligned with the pallet unit or the layer unit (a C-managed product with a low shipment frequency, a rarely-stocked product, or a seasonally finished product), the factory It is also possible to store in a case unit storage section 30 a product that has been transshipped on a narrow pallet 102 in layer units or case units from an external storage place such as the above, and to ship the newly received product after shipment of a stock product of the same type.

(Single unit storage unit 40A) As described above, the loose unit storage unit 40A places an article in the transport container 2 such as a tray, a container, or an opened case, and displays an article type code recorded in the transport container 2. A label is stuck and paid out to the sorting / conveying line 50.

(Sorting / Conveying Line 50) The assorting / conveying line 50 forms a circulation path including the conveyor 114 of the storage 110, and a loop-shaped belt carrier type sorter or the like can be used. According to the sorting data of the display label attached to each of the sorting and conveying lines 50, the cases and articles paid out from the pallet unit storing section 20 and the case unit storing section 30 (the loose unit storing section 40A) are attached to the respective branch packing line. After distribution and shipment to 60A and 60B, surplus cases and surplus articles are counted, surplus cases are returned / received to the case unit storage section 30, and surplus items are stored in the loose unit storage unit 4.
Return / arrive to 0A.

The sorting / conveying line 50 stores sorting result data (type code and quantity) for each of the branch load arranging lines 60A and 60B, and return / arrival data for the case unit storage section 30 (bulk unit storage unit 40A). (Type code and quantity) to the control computer 11. As a result, the inventory number of _P, P P and take-out number of _FC, F P, even if there is excess or deficiency in the quantity of C _P, the occurrence of this deficiency, seized, subjected to a process of repair, etc., can guarantee the order satisfaction.

(Packing Line 60A, 60B) The case packing line 60A for case order and the packing line 60B for bulk order each have the same batch order (the same transfer) for the cases and articles branched from the sorting and conveying line 50. A label printed with the store name and the type and quantity of the article is affixed to the case or the article, the case or the article is paid out, and the sorting and packing is completed.

The following is a detailed description of the bulk ordering line 60B for bulk order. Packing line 60
B assigns each zone of the fluidized shelf 71 to each store constituting the same batch order (the same delivery direction), and has a digital display 72 for displaying the type and quantity of the input article in each zone. A label issuing machine 73 that issues a label on which the type and quantity of the input article is printed is provided. In addition, the sorting line 60 is
Is circulated along each zone of the flow shelf 71, and then re-joins the sorting and conveying line 50.
The cases or articles are automatically positioned by the conveyor 74 in the corresponding zones of the fluidized shelves 71 so that the cases or articles that have been branched to the respective stores (each shelf) are assigned. In addition, the packing line 60 includes a container moving line 76 that can transport the containers assembled by the folding container assembling machine 75 to positions corresponding to the respective zones of the flow shelf 71. The operator attaches the label issued by the label issuing device 73 to the container, and moves the container to the input zone of the fluidized shelf 71. Cases and articles of the same batch order carried in from the sorting / conveying line 50 are transferred to the conveyor 7.
When the operator stops at the loading zone of the flow shelf 71 by 4, the operator puts those cases and articles into the corresponding containers while checking the display on the digital display 72. Further, the sorting and packing is completed. Of the cases or articles carried in by the conveyor 74, a surplus case and surplus articles not put into the fluidized shelf 71 are attached with a return label, and are returned from the conveyor 74 to the sorting and conveying line 50.

Therefore, according to the present embodiment, the following operations are provided. (1) The load loaded on the wide pallet 101 is transferred to the narrow pallet 102 with a small width, and the pallet 110 is loaded into the storage 110, and the load of the narrow pallet 102 discharged from the storage 110 is unloaded. Therefore, the package of the narrow pallet 102 becomes compact. Therefore, when palletizing and depalletizing by hand, the worker's hand can reach from the front to the back of the pallet, and the workability can be greatly improved. The device 116 can be miniaturized and simplified, and semi-automatic picking and mechanization can be easily performed.

(2) The cases stored in the case unit storage section 30 are the standard pallets 1 of the pallet unit storage section 20.
01, the standard pallet 10
1 is a surplus case less than one layer unit, and if this small number of surplus cases are stored on the wide standard pallet 101, only a very small part of the stackable space of the standard pallet 101 will be used. 30 makes the storage efficiency extremely poor. In the present invention, since the above-mentioned surplus cases are stored on the narrow pallet 102 having a small width, the storage efficiency of the case unit storage section 30 can be improved.

(3) When the stock number P in the case unit storage section 30 is zero, the shipment of the case from the case unit storage section 30 is not considered from the beginning, and the case is shipped from the pallet unit storage section 20. . Therefore, case unit storage category 3
There is no need to secure the stock in advance to zero, and the handleability is good.

(4) The surplus cases of the cases taken out of the pallet unit storage section 20 after shipment are stored in the case unit storage section 3.
At the time of arrival to 0, the entire inventory of the case unit storage section 30 has been shipped and becomes empty, so there is no need to confirm the presence or absence of the space for receiving the surplus case in the case unit storage section 30 each time. Good handling.

(5) When the stock quantity P of the case unit storage section 30 is smaller than the total number of shipments O, the case unit storage section 3
Since all the stock numbers P of 0 are shipped, there is no need to count the number of shipments from the case unit storage section 30, and shipping can be performed quickly and easily. In addition, since cases are taken out from the pallet storage section by layer unit, the pallet unit storage section 2 is also used in this case.
There is no need to count the number of extractions from zero, and extraction can be performed quickly and easily.

(6) Since the surplus of the cases taken out from the pallet unit storage section 20 is to be received in the case unit storage section 30, an overflow area for temporarily storing the surplus is stored in the pallet unit storage section 20. It is not necessary to attach to the case, and there is no need to post-process a surplus case temporarily stored in the overflow area, so that the handleability is good.

(7) When the number of stocks P in the case unit storage section 30 is smaller than the total number of shipments O for the case of the same kind of article, the goods are shipped from both the case unit storage section 30 and the pallet unit storage section 20. However, since all the stock numbers P in the case unit storage section 30 are always shipped, first-in / first-out of articles is guaranteed.

(8) Since the case of the same kind of article and the loose transport container 2 are mixedly loaded on the narrow pallet 102 stored in the case unit storage section 30, the storage efficiency of the case unit storage section 30 can be improved. When it is necessary to take out a required number of articles from both the case and the bulk transport container 2, those articles can be taken out together at the same time, and the article can be taken in and out quickly.

[0079] (9) When the stock quantity P _P rose unit storage portion 40A is zero, shipment of goods from the rose unit storage portion 40A is not considered from the beginning, the case unit storage portion 30A
Shipped from. Therefore, there is no need to secure stock in advance in the loose unit storage unit 40A, and the handling is good.

(10) When the surplus articles after shipment of the articles taken out of the case unit storage section 30A are received in the bulk unit storage section 40A, the entire stock of the bulk unit storage section 40A has been shipped and becomes empty. Therefore, it is not necessary to confirm each time whether or not there is a space for receiving the surplus article in the loose unit storage unit 40A, and the handling is good.

[0081] (11) When people of inventory _{P P} rose unit storage section 40A is less than the shipping total number _{O P,} rose unit storage unit 40
Since ship the total number of inventory P _P of A, there is no need to count the number of shipments from rose unit storage portion 40A, can be shipped quickly easily. Also, since the cases are taken out from the case unit storage unit 30A in case units, the number of cases taken out from the case unit storage unit 30A does not need to be counted in this case as well, and the case can be taken out quickly and easily.

(12) The surplus of articles in the case taken out of the case unit storage unit 30A is stored in the loose unit storage unit 40A.
It is not necessary to attach an overflow area for temporarily storing the surplus to the case unit storage unit 30A, and it is not necessary to post-process the surplus articles temporarily stored in the overflow area. Is good.

[0083] (13) for the same varieties goods, when those of the stock number P _P rose unit storage section 40A is less than the shipping total number O _P is, rose unit storage section 40A and the case unit storage unit 30
Although shipped from both A, since stock quantity P _P rose unit storage portion 40A is always total number shipped is guaranteed first-in / first-out of the article.

[0084]

As described above, according to the present invention, the pallet loading and unloading in and out of the storage can be made compact, the manual work of palletizing and depalletizing can be facilitated, and the mechanization can be facilitated. . Further, according to the present invention, when shipping an article, a required number of articles can be smoothly shipped without securing the stock of the article in advance or checking whether or not there is a space for receiving surplus articles each time, and Can be first-in / first-out.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a picking device.

FIG. 2 is a schematic diagram showing a case order picking method using a picking device.

FIG. 3 is a schematic diagram showing a random order picking method using a picking device.

FIG. 4 is a schematic view showing a package of a pallet.

FIG. 5 is a sectional view showing a storage.

FIG. 6 is a front view showing a storage.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 picking device 11 control computer 20 pallet storage section 30 case storage section 30A case storage section 40A bulk storage section 50 sorting transport line 101 standard pallet 102 narrow pallet 110 storage

Claims (5)

[Claims] 1. A picking method that uses a wide-width standard pallet and a narrow-width narrow pallet in combination, wherein a load loaded on the standard pallet is reloaded to the narrow pallet, and then stored in a storage, and stored. Picking method for unloading narrow pallets from the warehouse. 2. A pallet unit storage section for storing a case accommodating a plurality of articles on a pallet in a plurality of layers stacked on a wide-width standard pallet, and allowing the case to be taken out in a layer unit. It has a case unit storage section that allows the cases accommodating the articles to be loaded and stored on a narrow pallet of a narrow size in case units, and that the cases can be taken out in case units. This is a picking method for shipping those articles from the storage category, wherein the stock quantity P of the case type storage category for the same kind of article.
Is larger than the total number of shipments O, the necessary number O of items are shipped from the case unit storage category, and if the number of stocks P in the case unit storage category is smaller than the total number of shipments O, the inventory of the case unit storage category is The total number of articles of the number P is shipped, the shortage number (OP) is rounded up to the number of pallet units, and the cases corresponding to the calculated number of layers are taken out of the pallet unit storage section and the number of cases corresponding to the number of layers is calculated. A picking method in which the shortage (OP) of the articles is shipped from the inside, and the surplus cases after the shipment are stacked and stored on a narrow pallet in the case unit storage section. 3. A case-based storage section in which a plurality of cases accommodating a plurality of articles are loaded on a case-by-case basis on a narrow pallet in the case-unit storage section. to form a rose unit storage unit that was mixed, shipped for the same varieties goods, when those of the stock number P _P rose unit storage unit is greater than the shipping total number O _P is, the articles of the required number of O _P from among the rose unit storage unit and, when the direction of the stock quantity P _P of the rose unit storage portion is less than shipping total O _P are shipped the total number of articles in stock P _P rose unit storage unit, insufficient number of (O P _{-P P)} The number of cases is rounded up, and the number of cases corresponding to the calculated number of cases is taken out of the case unit storage unit, and the shortage number (O
3. The picking method according to claim 2, wherein the articles _P- P _P ) are shipped, and the surplus articles after the shipment are received in the bulk unit storage unit. 4. A pallet unit storage section for storing a case accommodating a plurality of articles on a standard pallet of a wide width in a pallet stacked in a plurality of layers, and allowing the case to be taken out in a layer unit. The case containing goods is stacked on a narrow pallet of narrow size and stored by case, and the case can be taken out by case. A sorting / conveying line for receiving articles to be shipped and sorting the articles into a plurality of branch packing lines; a control computer controlling a pallet-based storage category and a case-based storage category based on shipping plan data; , A picking device that ships those items from the pallet storage category and the case storage category to the sorting and conveying line. Then, the control computer calculates the stock quantity P in the case unit storage category for the same kind of article.
Is larger than the total number of shipments O, the necessary number O of items are shipped from the case unit storage category, and if the number of stocks P in the case unit storage category is smaller than the total number of shipments O, the inventory of the case unit storage category is The total number of articles of the number P is shipped, the shortage number (OP) is rounded up to the number of pallet units, and the cases corresponding to the calculated number of layers are taken out of the pallet unit storage section and the number of cases corresponding to the number of layers is calculated. A picking device for shipping the shortage (OP) of the articles from the inside and loading and storing the surplus cases after the shipment on a narrow pallet in the case unit storage section. 5. A case-based storage unit in which a plurality of cases accommodating a plurality of articles are stacked on a case-by-case basis on a narrow pallet in the case-unit storage section, and a bulk transport container accommodating a single article. allowing formation rose unit storage portion mixedly, the control computer, for the same varieties article, when towards the inventory P _P rose unit storage unit is larger than the shipped total O _P is the number required from the rose unit storage portion O shipping _P article, when towards the stock number P _P of the roses unit storage unit is less than the shipping total number O _P is to ship the total number of articles of the inventory number P _P rose unit storage unit, lack of number of (O _P −P _P ) is rounded up to the number of case units, and the cases corresponding to the calculated number of cases are extracted from the case unit storage unit, and the shortage number (O
The picking device according to claim 4, wherein the items _P- P _P ) are shipped, and the surplus items after the shipment are received in the bulk unit storage unit.