JP2776095B2 - Palletizing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a palletizing method for placing articles on a pallet, and more particularly to a palletizing method capable of efficiently palletizing a plurality of types of articles on the same pallet.

[0002]

2. Description of the Related Art For example, in a distribution center or the like, a plurality of types of articles may be palletized on the same pallet according to a shipping request. Many goods are prepared in the warehouse of the distribution center, and palletized for delivery according to the order of the customer. That is, typically, a picking request is made for a customer's order, a pallet in which a number of types of goods are stacked one by one is taken out of a warehouse, and each requested number of pallets is palletized on an empty pallet to obtain a plurality of types of goods. Is transported to a shipping location, and the goods are transferred to a truck or the like and delivered to the customer.

[0003]

As described above, when different articles are mixed and placed on the same pallet, the transport efficiency is better if a single transport request is handled with as few pallets as possible. Is clear. For example, to fulfill one order, rather than loading and transporting articles on two pallets, if all the articles are stacked on one pallet and one pallet is transported, the time required for palletizing, the conveyor, etc. , It is possible to reduce the time required for transporting to the shipping location. In the case where the pallets are placed on a truck, the number of pallets affects the transfer efficiency outside the distribution center. In order to reduce the number of pallets to be conveyed, it is important to load as many articles as possible on one pallet.

Accordingly, an object of the present invention is to provide a palletizing method capable of efficiently palletizing a plurality of types of articles.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a method for palletizing a plurality of types of articles having different sizes. Being, a plurality of patterns and the number of the articles that can constitute a plane on which articles can be further placed are set in advance, and according to each quantity of each requested article, palletizing according to the pattern for each article,
The palletizing method was configured so that fractional articles were stacked on the last plane.

[0006]

The present invention has the above-described structure, and has the following effects.

In the palletizing method according to the present invention, first, a pattern for palletizing an article is set in advance. In order to stack a plurality of articles on a pallet, a plurality of articles of the same size are placed on one surface, and the plurality of loaded articles constitute a plane on which articles can be further placed. For example, ten articles of the same type can constitute a plane on the same pallet, and six or seven articles can constitute a plane. Of course, the plane composed of 10 pieces is wide, and the area of 6 or 7 planes may be smaller than the area of the upper surface of the pallet. However, this is not limited to the present invention but is generally observed in palletizing, and there is no problem as long as a stable flat surface on which articles can be further stacked is formed. Such a pattern and the number of articles are set for each article.

When a picking request is made, the number of specific articles, which is the content of the request, is divided by the number of articles that can form a pattern. According to the above-described example, for example, if 30 patterns are required for a certain article and 10 patterns can be configured, palletizing may be performed so that three 10 patterns are formed. If there are 27 requests, two 10 patterns and one 7 pattern, and if there are 23 requests, 1
Zero, seven, and six patterns are one by one. If the request is like 29, making 2 of 10 patterns and 1 of 7 patterns will give 2 fractions. In this case, after this article and the remaining other articles are palletized according to a pattern, they are stacked on the last plane together with the fraction of other articles.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in the drawings will be described below.

FIG. 1 is a perspective view showing a palletized state according to one embodiment of the palletizing method according to the present invention, and FIG. 2 is a plan view showing a palletizing pattern of each article shown in FIG. FIG. 3 is a block diagram schematically showing a control structure of a palletizing apparatus to which the embodiment of FIG. 1 is applied.

In FIG. 1, three types of articles A, B, and C having different sizes are palletized on a pallet P, respectively. On the upper surface of the pallet P, a plurality of articles B are palletized according to a predetermined pattern, the article C is laid on the surface constituted by the plurality of articles B, and the article A is palletized on the surface constituted by the article C, respectively. Have been. On the surface constituting the article A, the article A,
B, one each, and two articles C, respectively.

On the pallet P shown in FIG.
There are nine items, nine items B, and eight items C, all.

As shown in FIG. 2, each article A, B, C is
Each of the three patterns can be placed on the pallet P. Article A is (1) 10 pieces (2) 6 pieces (3) 7 pieces,
Article B has (1) 8 pieces (2) 5 pieces (3) and 6 pieces, and article C has (1) 11 pieces (2) 6 pieces (3) and 5 pieces, respectively. Other than these patterns, it is possible to place them on a pallet, but in order to stably stack a large number of stages, the patterns are limited to these patterns. In other words,
Article A is placed on a plane constituted by these patterns.
(1) (2), article B (2), article C (2)
Even on a plane with a gap as in (3), it is possible to further stack articles.

FIG. 1 shows a palletized state according to these patterns. That is, in the first row, the article B is 8 in the pattern of (1), in the second row, the article C is 6 in the pattern of (2), and in the third row, the article A is in the pattern of (3). Seven are palletized, respectively. In the example of FIG. 1, each article constitutes one step at a time, but if the number of each article is larger, it occupies two or more steps. For example, if eight more articles B are required, the same level as the first level is stacked on the second level following the first level and the first level.

In addition to the example shown in FIG. 1, when another 11 articles C are to be stacked, the article C may be palletized by adding the pattern (1). In this case, the pattern occupied by the pattern (1) of the article C is larger than the area of the plane formed by the item (1) of the article B in the first tier. Deteriorate. Therefore, FIG.
The pallet P is stacked below the step. On the other hand, in the case where six more articles B are stacked in addition to the example of FIG. 1, the pattern (3) of the article B is applied, and the area occupied by the plane of the pattern is (1) of the article B. ), It must be stacked above the first step. In other words, each pattern is stacked from the bottom in the order of increasing area to form a pyramid, thereby ensuring stability.

On the step stacked in accordance with each pattern, that is, on the surface of the pattern (3) of the third article A in the example of FIG. Have been. That is, there is one article A, one article B, and two articles C. No further articles are placed on them, and if a fractional number of articles cannot be placed any more, two pallets P are used.

FIG. 3 is a block diagram schematically showing the configuration of an automatic palletizing apparatus to which the palletizing method of the present embodiment is applied.

The central control device 1 is an automatic palletizing device 2
And the entire picking system, including automated warehouses and conveyors. The control device of the automatic palletizing device 2 is CP
U3, ROM4, and RAM5 control the drive motor 6 to perform palletizing.

The request for picking is input to the central control device 1 and a command is transmitted to the automatic palletizing device 2. Further, the central control device 1 gives a command to an automatic warehouse or a conveyor (not shown), and issues the articles A, B, and C from the automatic warehouse,
It is transported to a position where the automatic palletizing device 2 can depalletize.

The automatic palletizing device 2 receives the command of picking, calls the data of the pattern of FIG. 2 stored in the ROM 4 in advance, and calculates how to palletize based on this data. In the example of FIG. 1,
The content of the command is 8 items A, 9 items B, 8 items C
Individual. When these numbers are divided by the number of articles constituting each pattern, one pattern of 7 pieces can be formed for the article A, the fraction is 1, the pattern of 8 articles B is 1 and the fraction is 1, and the article C is 1 Six patterns are 1 and the fraction is 2.

Of course, in addition to this, for example, a calculation method such that the article B has six patterns and the fraction is 3 can also be established. However, as described above, the fractional articles are stacked on the uppermost stage.
It is clear that it is advantageous to reduce the fraction as much as possible because the larger the fraction, the more difficult it is to stack and the number of pallets must be increased. Further, for example, when fifteen articles C are requested, there is a problem whether to make eleven patterns and leave four, or to make three five patterns so that there is no extra. But this is
One of them is selected in consideration of the fraction of other articles, the height of the palletized package (it is easy to collapse if it is too high), the number of pallets required to execute one command, and the like. .

As described above, since the packing is preferably a pyramid in terms of stability, the order of stacking is also determined by calculation.

Based on the result obtained by the calculation, the CPU 3 of the automatic palletizing device 2 drives the driving device 6 to palletize the articles A, B and C as shown in FIG.

As described above, according to the palletizing method of this embodiment, a flat surface on which articles can be further placed is formed along a pattern set in the storage device in advance. Since the fraction is placed on the last plane, palletizing can be performed efficiently, so that the number of pallets to be handled for one picking request can be reduced, and the transport efficiency can be improved.

Further, since the patterns are arranged in the order of increasing plane area, the patterns are stacked, so that the pattern is excellent in stability and hardly collapses.

The embodiments of the present invention have been described above.
It is needless to say that the present invention is not limited to the above-described embodiments, and can be appropriately modified and implemented within the scope of the present invention.

[0027]

As described above, according to the palletizing method according to the present invention, the picking request can be satisfied with a small number of pallets, so that the time required for palletizing and the transport time can be reduced, and the efficiency of picking can be improved. be able to. Also, in the case of transporting goods on a pallet by a transportation means such as a truck, a loading space can be saved, so that a factory with high transportation efficiency can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an article palletized by one embodiment of a palletizing method according to the present invention.

FIG. 2 is a plan view showing a palletizing pattern of each article shown in FIG. 1;

FIG. 3 is a block diagram schematically showing a control structure of an automatic palletizing apparatus for executing one embodiment of the palletizing method of the present invention for performing the palletizing of FIG. 1;

[Explanation of symbols]

 A, B, C Goods P Pallet

Claims (1)

(57) [Claims] 1. When palletizing a plurality of types of articles having different sizes, a plurality of articles of the same size are placed on the same plane, and a plane on which articles can be further placed can be configured. A palletizing method in which a plurality of patterns and the number of articles are set in advance, and palletizing is performed according to the pattern for each article according to the requested quantity of each article, and a fractional article is stacked on the last plane.