JP2515226B2 - How to stow goods - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for loading articles in which a plurality of types of articles are loaded in a container, and particularly to a container moving downward by adjusting the conveyance pitch of the loaded articles. The present invention relates to a method for packing articles to be packed.

[0002]

2. Description of the Related Art As a conventional technique relating to a method for stacking articles, one described in Japanese Patent Laid-Open No. 57-77123 is known.

The conventional technique described in the above publication will be described in Japanese Patent Application Laid-Open No. 57-77123.
There is described a surface unit gripping device that includes two pairs of box body pressing devices that face each other in the front-rear direction and the left-right direction, and that presses and grips the four surfaces of a box body group such as a cardboard box almost at the same time.

[0004]

However, the above-mentioned prior art has the following problems.

That is, since the surface-unit gripping device described in Japanese Patent Laid-Open No. 57-77123 handles box bodies (articles) on a surface-by-surface basis, it has a plurality of different heights. It is not possible to stack any kind of product at any position, such as that the above item cannot be stacked.

Therefore, an object of the present invention is to allow articles of any kind to be loaded at any position by adjusting the conveying pitch of the articles that have been lined up and loading the articles in a container that is moving downward. The object is to provide a method for loading articles.

[0007]

SUMMARY OF THE INVENTION The present invention is a method of loading articles in which a plurality of types of articles are loaded in a container, after the articles are stored in article storage sections arranged in a plurality of rows and a plurality of stages. Take out the above-mentioned articles and arrange the goods in stages.
Characterized in that the conveyance pitch of the articles arranged in each stage is adjusted by a variable speed conveyor to be arranged in an aggregate composed of a plurality of rows, and the articles arranged in the aggregate are stacked in the container. The above object has been achieved by providing a method for loading articles.

[0008] It is preferable that the articles are lined up at intervals according to the height of the preceding articles and vertically stacked in a container moving downward.

[0009]

According to the method of loading articles of the present invention, articles of any kind can be loaded at arbitrary positions by adjusting the conveying pitch of the loaded articles and loading the articles in a container moving downward. You can

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The method of loading articles according to the present invention will be described below together with an example of article loading equipment suitable for carrying out the method.

FIG. 1 is a perspective view showing an embodiment of an article arranging facility, FIG. 2 is an enlarged perspective view of a tip end portion of the gravity roller conveyor shown in FIG. 1, and FIG. 4 is an embodiment of an article stacking apparatus. In the perspective views of FIG.
0) is pre-sorted in the order of the first tributary line (1001A) as an article storage unit including a gravity roller conveyor (1001) for storing articles (G) by type (type) and the type (type) taken out. Multiple types (variety)
Gravity roller conveyor (1)
001) and a second tributary line (1001B) as an article storage section, and a fluidized shelving unit (1004) arranged in a plurality of rows and a plurality of stages. The stored goods (G) move from the storage front side to the storage front side by their own weight, and a plurality of mainstream lines provided corresponding to each gravity roller conveyor (1001) by the article take-out device (1003). The article (G) which is taken out to (1002) and precedes each stage of the mainstream line (1002).
The subsequent articles (G) are aligned at intervals according to the height of the sheet, and are conveyed to the inclined conveyor (3002) via the separation conveyor (3001) and the like. Further, (2000) is an article stacking apparatus that stacks articles (G) that have been continuously sorted by the article storage / load sorting apparatus (1000) on a pallet (P) as a container of the present invention. Transport conveyor (2001) and article supply conveyor (200
2), and the articles (G) that have been packed in a plurality of rows are configured to be stacked on the pallet (P) via the article supply conveyor (2002). Further, (3002) is a plurality of rows of inclined conveyors that convey the articles (G) that have been packed and arranged at intervals in each stage,
(3003) is a plurality of rows of variable speed conveyors arranged on the downstream side of the inclined conveyor (3002). Thus, the articles (G) of the same type are stored in the plurality of first tributary lines (1001A) located in the same row and the articles (G )
Are stored in the second tributary line (1001B), and the article (G) and the second article (G) stored in the first tributary line (1001A).
The articles (G) stored in the tributary line (1001B) are taken out to the main stream line (1002) in a desired quantity, and the articles are aligned for each stage, and the articles (G) for each stage are separated. The inclined conveyors (3002) are continuously conveyed through the conveyors (3001) and the like at intervals, and the conveyance pitch of the articles (G) arranged in stages is adjusted by the variable speed conveyor (3003). And a device for stacking articles (200
0) a plurality of articles (G) loaded in the aggregate by
Are vertically stacked on a pallet (P) which is moving downward.

Each part in the above-mentioned embodiment will be described. (1001) is a gravity roller conveyor whose front end side is inclined low, and a plurality of rows (10 rows in FIG. 1, FIG. 3) are formed in a direction along the main stream line (1002). At 2
(6 rows), 5 shelves arranged vertically (1004)
Are formed, and the article take-out device (10) is provided at the tip of each gravity roller conveyor (1001).
03) is provided. Further, (1002) is a mainstream line (load aligning conveyor) arranged so as to connect the article take-out devices (1003) in the same stage, and is provided in five stages in the vertical direction.

Thus, the gravity roller conveyor (10
01) is a pair of rail frames (1012) provided with a plurality of rollers (1011) arranged in an inclined manner. The article (G) supplied onto the gravity roller conveyor (1001) is a roller (1011). After being self-propelled by its own weight and stored (storage), it is taken out by the article take-out device (1003) to the mainstream line (1002).

Further, the mainstream line (1002) is a belt at a speed of 30 m / min, which is arranged so as to connect the article take-out device (1003) provided at the tip of the gravity roller conveyor (1001) arranged in parallel. The conveyor is provided with five stages in the vertical direction so as to be substantially orthogonal to the gravity roller conveyor (1001). The main line (10
02) has a pulse encoder (1023) not shown attached.

Further, the article take-out device (1003) is
The air cylinder (103
2) The stopper (1
031) and a chute (1034) arranged on the downstream side of the stopper (1031).
032) when the rod is in the protruding state, the stopper (1
The upper end of the front wall of 031) projects from the upper surface of the roller (1011), and the front wall of the stopper (1031) locks the self-propelled article (G). is there. When an article take-out command is issued, the air cylinder (1032) is actuated to move the upper end of the front wall of the stopper (1031) to the roller (10
The article (G) at the tip is lowered from the upper surface of 11) and locked by the front wall of the stopper (1031). then,
The upper end of the rear wall of the stopper (1031) has a roller (101
Since it is higher than the upper surface of 1), the succeeding article (G)
Is locked by the rear wall of the stopper (1031) and is stored on the gravity roller conveyor (1001) (G)
Only one can be taken out to the mainstream line (1002). The chute (1034) for carrying out the articles (G) taken out one by one by the stopper (1031) to the mainstream line (1002) is composed of a pair of rail frames (1341) provided with a plurality of rollers. The chute (1034) rail frame (134
1) is arranged at a steeper slope than the rail frame (1012) of the gravity roller conveyor (1001).

Hereinafter, the first tributary line (1001A) and the second tributary line (100) consisting of the gravity roller conveyor (1001) of the article storage / loading device (1000).
1B) to take out the articles (G) stored in and to load-align the articles (G) in the flow shelf (1004) shown in FIG. 3, that is, the gravity roller conveyor (1001) along the main line (1002). The description will be made on the basis of another embodiment in which a total of 130 pieces are arranged in 26 rows and 5 rows in the vertical direction. In addition, (1a), (1b), ..., (1z) are gravity roller conveyors (1
The main stream line (100
2), the most downstream side is (1a) and the most upstream side is (1z)
And (1a), (1b), ..., (1y) are the first
Is used as the tributary line (1001A) and (1z) is used as the second tributary line (1001B). Also, (2a), (2b), ..., (2
z) is a branch code indicating each of the gravity roller conveyors (1001) arranged in the second stage from the bottom, and 3 from the bottom.
Gravity roller conveyors (1001) arranged in the 5th to 5th steps are also shown, and the gravity roller conveyors (2z), (3
z), (4z) and (5z) are the second tributary line (100
1B).

Thus, each first tributary line (1
001A) stores a plurality of articles (G) for each product type, and the first tributary lines (1001A) of all stages located in the same row store the articles (G) of the same product type. . That is, the first tributary line (1a), (2a),
(3a), (4a), and (5a) include articles of a type (G
a) is the first tributary line (1b), (2b), (3)
b), (4b), and (5b) include b-type articles (Gb)
However, similarly for the other first tributary lines (1001A), the first tributary lines (1y), (2y), (3
In y), (4y), and (5y), y-type articles (Gy) are stored. Also, the second tributary line (1z),
In (2z), (3z), (4z), and (5z), articles (Gz) of a plurality of varieties with low load alignment request frequencies are stored in the order of varieties taken out to the main line (1002). Needless to say, the z-type product (Gz) means a plurality of product types (G).

Explaining a method of arranging the articles (G) stored in the gravity roller conveyor (1001) as an aggregate unit, as shown in FIG. 7, the pallet (P) is the same as the first row and the first column. Goods of variety, eg 300 in length
An article (Ga) with a height of 50 mm and a height of 50 mm has m steps (for example, 4
Articles of the same type in the second row, for example, articles (Gu) having a length of 300 mm and a height of 70 mm are stacked in n steps (for example, 3 steps), and articles of the same type in the third row, for example, Items (Gc) with a length of 300 mm and a height of 50 mm
Stacked in stages (for example, 4 stages), articles of the same type in the 4th row,
For example, an article with a length of 300 mm and a height of 70 mm (G
v) is stacked in p-tiers (for example, 3 tiers), and the same kind of article, for example, an article (Ge) having a length of 300 mm and a height of 50 mm is tiered (for example, 4 tiers) in the fifth row, ,
First tributary lines (1a), (2u), (3c), (4
v), (5e) each one article (G) is taken out to each main stream line (1002) by each article take-out device (1003) provided at the tip end, and a total of five articles (G) are obtained. Taken out. Further, similarly, taking out the respective articles (G) is repeated two to three times, four articles (Ga) are loaded on the first main stream line (1002) from the bottom, and the second row from the bottom. Three articles (Gu) are loaded on the main line (1002) of
Four articles (Gc) are loaded on the main line (1002) at the third stage from the bottom, and the main line (1) at the fourth stage from the bottom (1
002) are loaded with three articles (Gv), and four articles (Gv) are placed on the main stream line (1002) at the fifth stage from the bottom.
e) is packed. 18 items (G)
Is continuously conveyed at intervals for each inclined conveyor (3002) through the separation conveyor (3001) and the like, reaches the variable speed conveyor (3003), and the conveyance pitch is adjusted by the variable speed conveyor (3003). , As described below, by means of the article stacking device (2000)
The eighteen articles (G) that have been sorted as an aggregate of (3) are stacked on the pallet (P) moving downward in the arrangement of 3 to 4 rows × 5 rows.

Further, as shown in FIG. 8, an article (G) of a different type, for example, an article (Gz) having a length of 390 mm and a height of 50 mm from the bottom, in the second row, first column of the pallet (P),
A second article in the order of an article (Gz) having a length of 330 mm and a height of 60 mm, an article (Gz) having a length of 380 mm and a height of 50 mm, and an article (Gz) having a length of 390 mm and a height of 70 mm (Gz). Articles (G) having a height of 50 mm are arranged in rows 5 to 5, for example, in the second row from the bottom (Gb), (Gg), (G).
l), (Gq) in this order from the bottom to the third column (G
c), (Gh), (Gm), (Gr) in this order from the bottom to the fourth row, articles (Gd), (Gi), (Gn), (Gs).
In the order of, from the bottom to the fifth column, the articles (Ge), (Gj),
In the case of stacking in the order of (Go) and (Gt), the article (G
z) is the article (Gb) at the head of the second main stream line (1002) from the bottom, and the article (Gb) is the third main stream line (1002) from the bottom.
2) the article (Gc) is at the beginning, the article (Gd) is at the beginning of the fourth main stream line (1002) from the bottom, and the article (Ge) is at the beginning of the fifth main stream line (1002) from the bottom. Each article (G) has a second tributary line (1z), a first tributary line (2b), (3c), so as to be loaded.
The items are taken out from (4d) and (5e) and sorted. Next, the article (Gz) is in the first main stream line (1002) from the bottom, the article (Gg) is in the second main stream line from the bottom (1002), and the third main stream line (1002) is from the bottom. 100
2) is the article (Gh), the fourth main line (1002) from the bottom is the article (Gi), and the fifth main line (1002) is from the bottom the article (Gj). Each article (G) has a second tributary line (1) so as to be lined up at a second position on the line (1002).
z), the first tributary line (2g), (3h), (4
i) and (5j) are taken out and the goods are sorted. Next, the article (Gz) is added to the first main line (1002) from the bottom.
However, the article (Gl) is in the second main stream line (1002) from the bottom, the article (Gm) is in the third main stream line (1002) from the bottom, and the fourth main stream line (1002) is from the bottom.
2) is loaded with the article (Gn) and the fifth main flow line (1002) from the bottom is loaded with the article (Go) at the third position on each main flow line (1002). The article (G) is the second tributary line (1z), the first
Tributary lines (2l), (3m), (4n), (5o)
It is taken out of and packed. Next, the article (Gz) is in the first main line from the bottom (1002), the article (Gq) is in the second main line from the bottom (1002), and the main line in the third from the bottom (1002). 1002) is an article (Gr)
However, the article (Gs) is on the fourth main stream line (1002) from the bottom, and the article (Gt) is on the fifth main stream line (1002) from the fourth on the main stream line (1002). The respective articles (G) are taken out from the second tributary line (1z), the first tributary lines (2q), (3r), (4s), and (5t) so as to be loaded in the position To be done. That is, the first main line (1
002) includes articles (Gz), (Gz), (Gz), (G
z), the second main flow line from the bottom (1002)
In the order of articles (Gb), (Gg), (Gl), and (Gq), and in the main line (1002) at the third stage from the bottom, articles (Gc), (Gh), (Gm), and (Gr). ) In the order from the bottom to the main line (1002) from the bottom of the article (G
In the order of d), (Gi), (Gn), and (Gs), the article (Ge),
(Gj), (Go), and (Gt) are ordered in this order, and the 20 articles (G) that have been ordered are separated by the separating conveyor (30
01) and the like, and each inclined conveyor (3002) is continuously conveyed at intervals with a variable speed conveyor (3).
003), the conveying pitch is adjusted by the variable speed conveyor (3003), and the article stacking device (200
Twenty articles (G) that have been sorted as the second aggregate by (0) are placed on the pallet (P) moving downwards in four stages × 5.
Stacked in a row arrangement.

Next, for example, articles (Ga), (Gg),
(Gr), (Gr), (Ga), (Ge), (Gl),
When the articles (G) having a height of 50 mm in the order of (Gs) are loaded on the first main stream line (1002) from the bottom, the first tributary line (1001A) or the second tributary line, respectively. How the articles (G) stored in the line (1001B) are taken out to the mainstream line (1002) will be described.

The first main stream line (1002) from the bottom
Is set to a virtual space of 500 mm obtained by adding a certain margin space 200 mm to the length dimension (300 mm) of the article (G), and the above eight articles (G) are taken out from the virtual space.
When there is a load alignment command to convey at a pitch of 00 mm, the pulse encoder (1023) attached to the main line (1002) causes the main line (1002) to move.
Since one pulse is generated for 1 mm movement of 2), by counting this pulse with a pulse counter (not shown), the first tributary line (1
At the timing when the positions of a), (1b), ..., (1y) and the second tributary line (1z) are corrected, each article (G) is moved to a predetermined position on the main stream line (1002). It is taken out and sorted in order of pitch and order.

That is, the first main stream line (100
A first tributary line (1a) arranged in parallel along 2),
(1b), ..., (1y) and the second tributary line (1
z) is 400 mm, for example, the distance between the uppermost stream (26th) second tributary line (1z) and the first tributary line (1a) is 400 mm × (26−
1) = 10000 mm, which is the final end of the first main stream line (1002) from the bottom, that is, the separation conveyor (300
Since the article (Ga) that should first reach 1) is stored in the first tributary line (1a), 1
The article (Ga) may be taken out of the first tributary line (1a) with a delay of 0000 pulses. That is, the position correction value of the first tributary line (1a) or the article (Ga) is 10,000 pulses after the start of the load alignment, and is 1 after the start of the load alignment.
An article take-out device (1003) provided with an article take-out command at the tip of the first tributary line (1a) so as to take out the article (Ga) from the first tributary line (1a) to the main stream line (1002) after 0000 pulses. ) Is given to. The final end, that is, the article (Ga) that should first reach the separating conveyor (3001) is the main line (1002).
Is carried out at the top, the carry-out timing based on the carrying order is 0 pulse.

Next to the article (Ga), the mainstream line (100
The article (Gg) to reach the final end of 2) is taken out from the first tributary line (1g),
2) 500 from the virtual space of the article (Ga) set above
Only mm mm is loaded in the virtual space on the upstream side. That is, the distance between the uppermost second tributary line (1z) and the seventh first tributary line (1g) is 400 mm × (26-7) = 7.
It is 600 mm, and the position correction value of the first tributary line (1 g) or the article (Gg) is 7600 pulses. In addition, since the conveyance interval with the article (Ga) that reaches the final end first is 500 mm, the first tributary line (1
In order to take out the article (Gg) from the g) to the main stream line (1002), the article take-out command is issued to the first tributary line (1).
g) an article take-out device (100
Given in 3).

Next to the article (Gg), the mainstream line (100
The article (Gr) that should reach the final end of 2) is taken out from the first tributary line (1r), and the main line (100).
2) 100 from the virtual space of the article (Ga) set above
Only 0 mm is loaded in the upstream virtual space. That is, the distance between the uppermost second tributary line (1z) and the 18th first tributary line (1r) is 400 mm × (26-1
8) = 3200 mm, first tributary line (1r)
Alternatively, the position correction value of the article (Gr) is 3200 pulses. Further, since the conveyance interval with the article (Ga) that reaches the final end first is 1000 mm, it is 1 in 3200 pulses.
After 4200 pulses obtained by adding 000 pulses, the article (Gr) is transferred from the first tributary line (1r) to the mainstream line (100).
An article take-out command is given to the article take-out device (1003) provided at the tip of the first tributary line (1r) so as to take out to the item (2).

After the above article (Gr), the article (Gr) of the same type reaches the final end of the mainstream line (1002),
The article (Gr) is also taken out from the first tributary line (1r), and is loaded in the virtual space on the upstream side by 1500 mm from the virtual space of the article (Ga) set on the main flow line (1002). That is, since the conveyance interval with the article (Ga) that reaches the final end first is 1500 mm, 3
After 4700 pulses obtained by adding 1500 pulses to 200 pulses, the article take-out command is sent to the tip of the first tributary line (1r) so as to take out the article (Gr) from the first tributary line (1r) to the main stream line (1002). It is given to the article take-out device (1003) provided.

Next to the article (Gr), the mainstream line (100
The article (Ga) that should reach the final end of 2) is taken out from the first tributary line (1a), and
2) 2000 from the virtual space of the article (Ga) that should reach the final end of the first mainstream line (1002) set above
Only mm mm is loaded in the virtual space on the upstream side. That is, the conveyance interval with the article (Ga) that reaches the final end first is 200
Since it is 0 mm, the first tributary line (1
In order to take out the article (Ga) from (a) to the main stream line (1002), the article take-out command is issued to the first tributary line (1).
a) The article take-out device (100
Given in 3).

Next to the article (Ga), the mainstream line (100
The article (Ge) to reach the final end of 2) is taken out from the first tributary line (1e), and the main line (100).
2) 2500 from the virtual space of the article (Ga) that should reach the final end of the first mainstream line (1002) set above
Only mm mm is loaded in the virtual space on the upstream side. That is, the distance between the uppermost second tributary line (1z) and the fifth first tributary line (1e) is 400 mm × (26−5) = 8.
It is 400 mm, and the position correction value of the first tributary line (1e) or the article (Ge) is 8400 pulses. In addition, since the conveyance interval with the article (Ga) that reaches the final end first is 2500 mm, 2500 per 8400 pulses.
After 10900 pulses after adding the pulses, the article (Ge) is transferred from the first tributary line (1e) to the mainstream line (1002).
An article take-out command (10) is provided at the tip of the first tributary line (1e) to take out the article.
03).

Next to the article (Ge), the mainstream line (100
The article (Gl) to reach the final end of 2) is taken out from the first tributary line (1l), and the main line (100).
2) 3000 from the virtual space of the article (Ga) that should reach the final end of the first mainstream line (1002) set above.
Only mm mm is loaded in the virtual space on the upstream side. That is, the distance between the uppermost second tributary line (1z) and the twelfth first tributary line (1l) is 400 mm × (26-12).
= 5600 mm, and the position correction value of the first tributary line (1l) or the article (Gl) is 5600 pulses.
Further, since the conveyance interval with the article (Ga) that reaches the final end first is 3000 mm, it is 300 in 5600 pulses.
After 8600 pulses after adding 0 pulses, the article (Gl) is transferred from the first tributary line (1l) to the mainstream line (1002).
The article take-out command (10) is provided at the tip of the first tributary line (1l) to take out the article.
03).

After the article (Gl), the mainstream line (100
The article (Gs) to reach the final end of 2) is taken out from the first tributary line (1s), and
2) 3500 from the virtual space of the article (Ga) that should reach the final end of the first mainstream line (1002) set above
Only mm mm is loaded in the virtual space on the upstream side. That is, the distance between the uppermost second tributary line (1z) and the 19th first tributary line (1s) is 400 mm × (26-19).
= 2800 mm, and the position correction value of the first tributary line (1s) or the article (Gs) is 2800 pulses.
Further, since the conveyance interval with the article (Ga) that reaches the final end first is 3500 mm, 350 in 2800 pulses.
After 6300 pulses with 0 pulse added, the article (Gs) is transferred from the first tributary line (1s) to the mainstream line (1002).
The article take-out command (10) is provided at the tip of the first tributary line (1s) so as to take out the article.
03).

When the articles (G) are lined up on the main stream line (1002) from the second to the fifth from the bottom, the position correction value and the conveyance interval are calculated in the same manner to determine the predetermined values. From the first tributary line (1001A) and the second tributary line (1001B) at the timing, the main stream line (1
002) is controlled to take out the article (G). In addition, articles (G) to be loaded on the mainstream line (1002)
If the heights of all are 50 mm, as described above, 500
mm pitch, i.e., take out at 1.0 second intervals,
When the articles (G) of various heights are to be loaded on the mainstream line (1002), the articles (G) that follow are conveyed at an interval corresponding to the height of the preceding article (G) to be loaded. The distance is calculated. For example, an article with a height of 70 mm (Gu)
The articles (G) to be loaded subsequently are controlled to be taken out at a pitch of 700 mm, that is, at an interval of 1.4 seconds. Similarly, an article (G) having a height of 80 mm followed by an article (G) to be packed together has a pitch of 800 mm, that is, 1.6 (g).
It is controlled to take out every second.

Then, each main line (100
2) Articles (G) that are continuously loaded at intervals with each other
To convey to the inclined conveyor (3002), the separation (belt) conveyor (3001), the left 90 ° roller curve conveyor, the straight belt conveyor, the right 90 ° roller curve conveyor are provided downstream of each main line (1002). , A linear belt conveyor is provided. It should be noted that the articles (G) to be the heads in each row of the aggregate consisting of a plurality of rows are inclined conveyors (3002) almost at the same time.
Of the conveyor provided downstream of the main stream line (1002) so as to reach the final end of the variable speed conveyor (3003), that is, the main stream line (1002). It is preferable to correct the carry-out timing from the gravity roller conveyor (1001) every time.

Further, the inclined conveyors (3002) are belt conveyors and are arranged in five rows corresponding to the mainstream line (1002), and the respective inclination angles are different. The variable speed conveyor (3003) is an inclined conveyor (30
02), which is installed on the downstream side of
Belt conveyors capable of shifting at a speed of up to 42 m / min, and arranged in five rows corresponding to the inclined conveyor (3002).

Thus, each inclined conveyor (300
2) When it is detected that the articles (G) conveyed at intervals of each reach the upstream end of the variable speed conveyor (3003), the pulse value at the detected timing is compared with the expected pulse value. The transport speed of the variable speed conveyor (3003) is corrected based on the difference (error). The time required for the article (G) to pass through the variable speed conveyor (3003) is adjusted by changing the transport speed of the variable speed conveyor (3003), and the article (G) is upstream of the article supply conveyor (2002). Items (G) that have been modified so that they reach the end at the scheduled timing and that have been lined up for each main line (1002) (caused by slippage during transportation)
The deviation (disturbance) of the conveyance pitch is adjusted.

That is, the article (G) having a height of 50 mm and being sorted after the article (G) is aligned with a pitch of 1.0 second and the article (G) having a height of 70 mm after the article (G). Goods (G) are supplied at a pitch of 1.4 seconds.
2) The variable speed conveyor (300
3) The items are adjusted and aligned in the group of 5 rows of articles (G).

The article stacking device (2000) is
A pallet conveyor (2001) that conveys the pallet (P) horizontally, and an article (G) whose conveyance pitch is adjusted by the variable speed conveyor (3003) are pallets (P) or articles previously supplied ( G) a plurality of rows (two rows) of article supply conveyors (2002),
A pallet for the article supply conveyor (2002) is provided with a lifting device (2003) for lifting the pallet (P), a moving device (2004) for moving the lifting device (2003) along the supply direction of the article (G), and the like. By moving (P) in the horizontal direction and the vertical direction, the articles (G) loaded in the aggregate consisting of a plurality of rows are stacked on the pallet (P). In addition, the article supply conveyor (200
2) is arranged on the downstream side of the variable speed conveyor (3003), and is configured to be movable back and forth along the supply direction of the article (G) as shown by the one-dot chain line or the two-dot chain line in FIG. It is composed of a telescopic belt conveyor (2002a) and a fixed belt conveyor (2002b). The pallet transport conveyor (2001) is composed of a drive roller conveyor, and the lifting device (2003) is composed of a table lifter. The drive roller (203) is arranged on the table (2031).
2) is provided. An article regulation plate (2033) is provided upright on the end of the table (2031). The moving device (2004) includes a rack (2041) and a pinion (2042) and moves the lifting device (2003) along the guide (2043) in the supply direction of the article (G). Thus, the articles (G) loaded in the aggregate consisting of a plurality of rows are fed by the article supply conveyor (200
After 2), the pallet (P) is vertically stacked at a stacking speed substantially equal to the descending speed of the pallet (P).

That is, as shown in FIG. 5, the pallet (P) mounted on the elevating device (2003) is moved up to a position just below the article supply conveyor (2002) and the moving device (2004) supplies the article. Conveyor (200
The tip of 2) is moved to a position where the first assembly can be stacked.

On the other hand, an article (Ga) with a height of 50 mm, an article (Gc) with a height of 50 mm, an article (Ge) with a height of 50 mm, which is conveyed at a constant pitch for each row, for example, at a pitch of 1.0 second. Alternatively, the height conveyed at a pitch of 1.4 seconds is 70
mm product (Gu), height 70 mm product (Gv)
Are moved in the pallet (P) direction by the article supply conveyor (2002).

When the pallet (P) is moved to the stacking start position of the first aggregate, the elevating device (2003) starts descending and the articles are continuously supplied by the article supply conveyor (2002). (G) are stacked so as to be stacked on the pallet (P) which is moving downward (see the phantom line in FIG. 5), and as shown in FIG. 7, a plurality of articles (G) of the same type are vertically stacked. To be In addition, the lifting device (200) when the articles (G) are stacked on the pallet (P).
The descending speed of 3) is the stacking speed of the articles (G) to be stacked, and in this embodiment, 50 mm / 1.0 second = 3 m.
/ Min (70 mm / 1.4 sec = 3 m / min) or a little faster than that, so the upper surface of the already loaded articles (G) and the article supply conveyor (2002)
(G) that follows when the top surface of the
Can be stacked on top of the stacked articles (G), and various articles (G) having different heights can be stacked on the pallet (P) without disturbing the arrangement.

When the final articles (G) of the first aggregate are loaded onto the pallet (P), the pallet (P) is shown in FIG.
As shown in FIG. 5, the moving device (2004) moves the tip of the article supply conveyor (2002) to a position where the second aggregate can be stacked, and at the same time, the article supply conveyor (20
It is elevated to the position just below 02). At the same time as the movement of the pallet (P), the article supply conveyor (2002)
As shown by the alternate long and short dash line in FIG. 4, the tip of the elastic belt conveyor (2002a) of (390 mm-300 mm =) 9
It is designed to retreat by 0 mm. That is, the second to fifth columns
Based on the length (300 mm) of the articles (G) to be stacked in the row, depending on the length of the articles (G) to be stacked in the first row, for example, the articles (Gz) having a length of 390 mm are stacked. Telescopic belt conveyor (2002
The tip of a) is retracted by 90 mm so that articles (Gz) can be stacked at a predetermined position.

The pallet (P) is moved to the stacking start position of the second aggregate and the article supply conveyor (20
When the telescopic belt conveyor (2002a) of 02) is advanced and retracted to a predetermined position, the elevating device (2003) starts descending and the articles (G) continuously supplied by the article supply conveyor (2002) are lowered. Are stacked so as to be stacked on the moving pallet (P) (see the phantom line in FIG. 6), and as shown in FIG. 8, a plurality of types of articles (G) are vertically stacked.

Similarly, the pallets (P) stacked up to the third aggregate are transferred to the pallet conveyor (200
It is carried out by 1).

Although the article loading method according to the present invention has been described above with reference to the example of the article arranging facility suitable for carrying out the method, the article loading method according to the present invention is not limited thereto. For example, a plurality of tributary lines (1001)
It is also possible to store the same type of article (G) in only one tributary line (1001) without storing the same type of article (G).

Further, five rows of article supply conveyors (2002) are provided corresponding to the variable speed conveyors (3003), and each article supply conveyor (2002) is composed of a telescopic belt conveyor (2002a) configured to be movable back and forth. You may.

[0044]

As described above, the method of stacking articles of the present invention adjusts the conveying pitch of the packed articles and stacks the articles in a container which is moving downward, so that articles of any kind can be arbitrarily selected. Can be stacked in any position.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of an article arranging facility.

FIG. 2 is an enlarged perspective view of a tip portion of the gravity roller conveyor shown in FIG.

FIG. 3 is an elevational view of a fluidized shelf formed by arranging a total of 130 gravity gravity conveyors in 26 rows in the direction along the main line and in five stages in the vertical direction.

FIG. 4 is a perspective view showing an example of an article stacking apparatus.

5 is a side view for explaining the operation of the article stacking apparatus shown in FIG.

FIG. 6 is a side view for explaining the operation of the article stacking apparatus shown in FIG.

FIG. 7 is a perspective view showing a state of articles stacked on a pallet by the article stacking apparatus shown in FIG.

FIG. 8 is a perspective view showing a state of articles stacked on a pallet by the article stacking apparatus shown in FIG.

[Explanation of symbols]

 1001 article storage section (gravity roller conveyor) 3003 variable speed conveyor G article P container (pallet)

Claims (2)

(57) [Claims] 1. A method of stacking articles in which a plurality of types of articles are stacked in a container, wherein the articles are stored in article storage sections arranged in a plurality of rows and a plurality of stages, and then the stored articles are taken out. Loads are arranged for each stage, and the conveyance pitch of the articles arranged for each stage is adjusted by a variable speed conveyor to be arranged in an aggregate consisting of a plurality of rows, and the articles that are arranged in the aggregate are arranged in the container. A method for packing articles, characterized by packing. 2. The method for stacking articles according to claim 1, wherein the articles are lined up at intervals according to the height of the preceding articles and vertically stacked in a container moving downward.