JPH05105234A - Palletizing method - Google Patents

Abstract

PURPOSE:To mix and palletize many kinds of articles of different sizes with good efficiency. CONSTITUTION:In the case of stacking three kinds of articles A, B, C on one pallet P, patterns are previously set for the respective articles A, B, C. The pattern makes it a condition that plural articles of each one kind of the articles A, B, C can be placed on one plane and a plane for further placing articles is formed on the upper surface thereof. Accordingly, as far as it follows the pattern, articles can be stacked on the pallet P up to a certain height. As the pattern is formed by a fixed number of articles, a fraction is produced for the demand, and a fraction of articles are placed on the uppermost stage surface of the pattern.

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 for efficiently palletizing a plurality of types of articles on the same pallet.

[0002]

2. Description of the Related Art For example, at a distribution center or the like, a plurality of types of articles may be palletized on the same pallet in accordance with shipping requirements. A large number of articles are prepared in the warehouse of the distribution center, and are palletized for delivery according to the customer's order. That is, typically, a picking request is made in response to a customer's order, a pallet loaded with a large number of various types of goods is taken out of a warehouse, and the requested number of pallets are palletized on empty pallets to obtain a plurality of types of goods. The pallet carrying the items is transported to the shipping place, 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, it is preferable that the number of pallets is as small as possible in order to meet one transportation request, and the transportation efficiency is high. Is clear. For example, in order to fulfill one order, it is necessary to stack all the articles on one pallet and transport one pallet, rather than placing the articles separately on two pallets and transporting them. Can shorten the time to transport to the shipping place. If the pallets are to be placed on a truck, the number of pallets also affects the transportation efficiency outside the distribution center. In order to reduce the number of pallets to be transported, it is important to load as many articles as possible on one pallet.

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

[0005]

In order to achieve the above-mentioned object, the present invention is to provide a plurality of articles of the same size on the same plane when palletizing a plurality of articles of different sizes. Is set in advance a plurality of patterns and the number of articles that can form a plane on which articles can be further placed, according to each quantity of each article requested, palletizing according to the pattern for each article,
The palletizing method was configured to stack the fractional articles on the last plane.

[0006]

Since the present invention has the above-mentioned structure, it 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 tiers on a pallet, a plurality of articles of the same size are placed on one surface, and a plurality of the placed articles form a plane on which the articles can be placed. For example, the same kind of articles on the same pallet can form ten planes, or even six or seven planes. Of course, the plane consisting of 10 pieces is wide, and the area of the plane of 6 pieces or 7 pieces may be smaller than the area of the upper surface of the pallet. However, this is not limited to the present invention and is generally found 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 thereof are set for each article.

When a picking request is made, the number of specific articles, which is the request content, is divided by the number of articles that can form a pattern. According to the above-mentioned example, if, for example, when a request for 30 items requires a pattern of 10 patterns, palletizing may be performed so that 3 patterns of 10 patterns are produced. If there are 27 requests, 2 patterns of 10 and 1 pattern of 7 patterns, and if 23 patterns, 1 pattern
There are 0, 7, and 6 patterns, one each. If the number of requests is 29, two patterns of 10 and one pattern of 7 produce two fractions. In this case, this article and the rest of the other articles are palletized according to the pattern and then stacked on the final plane together with the fraction of the other article.

[0009]

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

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

In FIG. 1, a plurality of three types of articles A, B, and C having different sizes are palletized on a pallet P. A plurality of articles B are palletized on the upper surface of the pallet P according to a certain pattern, an article C is formed on the surface of the plurality of articles B, and an article A is palletized on the surface of the article C. Has been done. On the surface of the article A, the article A,
One B and one article C are placed.

On the pallet P shown in FIG. 1, there are a total of eight articles A.
9 items in total, 8 items in total, and 8 items in total.

As shown in FIG. 2, the articles A, B and C are
Each pattern can be placed on the pallet P in three patterns. Article A is (1) 10 pieces (2) 6 pieces (3) 7 pieces,
The article B comprises (1) 8 pieces (2) 5 pieces (3) 6 pieces, and the article C comprises (1) 11 pieces (2) 6 pieces (3) 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, they are limited to these patterns. In other words,
On the plane formed by these patterns, the article A
(1) (2), article B (2), article C (2)
It is possible to further stack articles even on a flat surface with a gap as in (3).

FIG. 1 shows a state of palletizing according to these patterns. That is, the article B has eight patterns in the pattern (1) in the first row, the article C has six patterns in the pattern (2) in the second row, and the article A has the pattern (3) in the third row. Palletized seven each. In the example of FIG. 1, each article has one step, but if the number of each article is larger, it will occupy two or more steps. For example, if eight more items B are requested, the same stage as the first stage will be stacked on the second stage in succession to the first stage and the first stage.

In addition to the example of FIG. 1, when eleven more articles C are to be stacked, the pattern (1) of the articles C may be added for palletizing. In this case, the pattern of (1) of the article C occupies a larger area than the area of the plane formed by (1) of the article B of the first stage, and therefore stability is improved when stacked above the first stage. become worse. Therefore, 1 in FIG.
The pallets P are stacked below the tier. On the other hand, when six articles B are stacked in addition to the example of FIG. 1, the pattern (3) of the article B is applied, but the area occupied by the plane of this pattern is (1 ), It must be stacked above the first stage. That is, each pattern is stacked from the bottom in the descending order of its area to form a pyramid shape to ensure stability.

On the steps stacked according to each pattern, that is, on the surface of the pattern (3) of the article A on the third step in the example of FIG. Has been. That is, there are one article A, one article B, and two article C. No more articles are placed on these, and if there are too many fractional articles to be placed, two pallets P are used.

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

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

A request for picking is input to the central control unit 1 and a command is transmitted to the automatic palletizing unit 2. Further, the central control device 1 gives a command to an automatic warehouse or a conveyor (not shown), and leaves each article A, B, C from the automatic warehouse,
The automatic palletizing device 2 conveys it to a position where it can be depalletized.

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

Of course, in addition to this, a calculation method in which the number of the articles B is six and the fraction is three, for example, can be established, but since the fractional articles are stacked on the uppermost stage as described above,
It is clear that it is advantageous to keep the fraction as small as possible because the fraction will not be stacked and the number of pallets will have to be increased. Further, for example, when 15 items C are requested, it becomes a problem whether 11 patterns are made to leave 4 patterns or 3 patterns are made to make 5 patterns so that there is no excess. But this is
Either one is selected in consideration of the fraction of other articles, the height of the palletized packing (when it is too high, the cargo easily collapses), the number of pallets required to execute one command, etc. ..

As described above, the pyramidal shape is preferable from the viewpoint of stability, so the stacking order is also determined by calculation.

Based on the result of 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 the present embodiment, a flat surface is formed so that an article can be further placed on the pattern set in the storage device in advance. Since the fraction is placed on the last plane, it is possible to efficiently palletize, and thus the number of pallets handled for one picking request can be reduced and the efficiency of transportation can be improved.

Further, since the planes formed by the patterns are arranged in descending order of area, they are stacked, so that the stability is excellent and the load is not easily collapsed.

The embodiment of the present invention has been described above.
It is needless to say that the present invention is not limited to the above-mentioned embodiments and can be appropriately modified within the scope of the gist of the present invention.

[0027]

As described above, according to the palletizing method of the present invention, since the picking request can be satisfied with a small number of pallets, the time required for palletizing and the conveying time can be shortened, and the picking efficiency can be improved. be able to. In addition, even when the goods are loaded on the pallet and transported by a transportation means such as a truck, the loading space can be saved, so that a factory with transportation efficiency can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an article palletized by an 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.

FIG. 3 is a block diagram schematically showing a control structure of an automatic palletizing apparatus for carrying out an embodiment of the palletizing method of the present invention for palletizing shown in FIG.

[Explanation of symbols]

 A, B, C goods P pallet

Claims (1)

[Claims] 1. When palletizing a plurality of types of articles of different sizes, a plurality of articles of the same size can be placed on the same plane, and a plane on which articles can be further placed can be formed. A palletizing method in which a plurality of patterns and the number of articles thereof are set in advance, palletizing is performed according to the pattern for each article according to the required number of each article, and a fractional number of articles is stacked on the final plane.