JPH09315575A - How to stow goods - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To efficiently stack high-height articles at high speed. A conveyor 2002 that supplies articles G to be stacked is configured to be capable of changing the speed at which it is moved upward, and the articles G are loaded at intervals according to the rising time of the conveyor 2002 to advance the movement. When the articles G are supplied on top of the articles G stacked together, the conveyor 2002 is adapted to move upward at a low speed,
The loaded article G moving upward is loaded onto the article G previously loaded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for stacking articles moving upwardly on top of previously stacked articles, and more particularly to articles for stacking articles in a column shape. It is related to the stowage method of.

[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. 5-58452 is known.

The conventional technique described in the above publication will be described. In Japanese Patent Laid-Open No. 5-58452, the same item product or the same group product is sequentially moved up and down along the same wall surface of an article conveyor or pallet. hand,
A loading method is described in which articles are stacked in a rod shape along the wall surface while being in contact with the wall surface, and the articles are sequentially stacked in a state of being stacked vertically on a pallet.

[0004]

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

That is, Japanese Patent Laid-Open No. 5-58452 discloses that
When loading the articles, it is not stated whether or not the articles to be loaded are moving upwards, and
It is also not mentioned whether or not the conveyor supplying the articles to be stacked is adapted to be able to change the speed at which it is moved upwards.

Accordingly, it is an object of the present invention to be able to change the speed at which a conveyor for feeding stacked articles is moved upwards so that tall articles can be efficiently processed at high speeds. An object of the present invention is to provide a method for packing articles which can be stacked on a container.

[0007]

According to the present invention, there is provided a method of stacking articles which are moving upwards on top of articles which have been stacked in advance, wherein a conveyor for supplying articles to be stacked is upwards. It is designed to be able to change the speed to be moved to, and to load the articles at intervals according to the rise time of the conveyor, and to load the loaded articles that are moving upward in advance. The above object is achieved by providing a method for loading articles, which is characterized by loading on articles.

It is preferable that the conveyor is adapted to move upward at a low speed when the articles are supplied on top of the articles stacked in advance.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below along with examples of articles assembling equipment suitable for carrying out the invention.

FIG. 1 is a perspective view partially showing an embodiment of an article arranging facility, FIG. 2 is an elevational view of an essential part partially showing an example of an article arranging facility, and FIG. 4 is an enlarged side view showing the downstream end of the gravity roller conveyor shown in FIG.
3 is a plan view of FIG. 3, FIG. 5 is a plan view showing an embodiment of a gravity roller conveyor, FIG. 6 is a side view partially showing an embodiment of a gravity roller conveyor, and FIG. 7 is an article stacking device. FIG. 8 is a perspective view showing an embodiment, FIG. 8 is an explanatory view of an embodiment of a load arranging method by a load arranging facility for goods, and FIG. 9 and FIG. 11 is a side view, FIG. 11 and FIG. 12 are perspective views showing the state of the articles stacked on the pallet by the article stacking apparatus shown in FIG. 7, and FIG. 13 is a diagram showing the articles stacked on the pallet shown in FIG. It is an AA view of a state.

In these drawings, 1 is a kind (variety)
Separately, in the gravity roller conveyor that stores the article G, a plurality of rows (5 rows) in the direction along the conveyor 2 and a plurality of rows (two rows) in the up-down direction are arranged with the leading end side inclined downward. The gravity roller conveyor 1 constitutes a fluidized shelf F having frontages in a plurality of rows and a plurality of stages. The transport conveyor 2 is a drive roller conveyor which is arranged in stages along the above-mentioned frontage and is provided in two stages in the vertical direction. An article take-out device 3 is provided at the downstream end of each gravity roller conveyor 1. Reference numeral 4 denotes an up-and-down conveying device which is arranged at a downstream portion of the two-stage conveying conveyor 2 and conveys the article G in the up-down direction at a constant pitch, and which has a skewered (fork) -shaped article placing section 411. The tool 41 and the endless rotating body 42 are provided, and the article conveying tool 41 is continuously rotated by the endless rotating body 42. Further, 1001 is a gravity roller conveyor in which the tip side for accommodating the articles G that have been sorted is slanted low, and is arranged in a plurality of rows (5 rows) in the direction along the conveyor 1002. An article take-out device 1003 is provided at the downstream end of each gravity roller conveyor 1001. Reference numeral 2000 denotes an article stacking device that stacks the articles G stored in the respective gravity roller conveyors 1001 on the pallet P. The pallet transport conveyor 2001 and the article G to be stacked are stacked on the pallet P or in advance. A plurality of rows of (article supply) conveyors 20 for supplying onto the attached articles G
02 and an elevating device 2003 that elevates and lowers the article supply conveyor 2002, and the elevating apparatus 2003 can change the speed at which the article supply conveyor 2002 is moved upward. Reference numeral 1005 denotes a telescopic oscillating conveyor that supplies the article G taken out by the article taking-out apparatus 1003 to the article feeding conveyor 2002, and one end thereof is the rail frame 10 of the article taking-out apparatus 1003.
34 is rotatably attached to the downstream end of 34 and the other end is rotatably attached to the upstream end of the article supply conveyor 2002. Thus, the articles G stored in the gravity roller conveyors 1 arranged in a plurality of rows and a plurality of stages are taken out to the conveyors 2 of the respective stages and merged, and the articles G merged in the respective conveyors 2 are vertically moved. After being further merged into one row by the transport device 4 and the merged articles G are branched and stored in the gravity roller conveyor 1001 arranged in a plurality of rows via the transport conveyor 1002, the articles G are transferred according to the rising time of the article supply conveyor 2002. The articles G stored in the gravity roller conveyor 1001 at different intervals are taken out and aligned on the article supply conveyor 2002, and the articles G being moved upward are stacked on the article G previously loaded.
And are stacked in a column shape (longitudinal direction) to form a plurality of rows and columns on the pallet P. When the succeeding articles G are supplied on top of the stacked articles G, the article supply conveyor 200
2 is moved upward at a low speed.

Explaining each part in the above embodiment, the gravity roller conveyor 1 comprises a plurality of rollers 1.
A pair of rail frames 12 provided with 1 are arranged in an inclined shape, and the article G supplied onto the gravity roller conveyor 1 is self-propelled on the roller 11 by its own weight and stored, and then the article take-out device 3 Are taken out by the conveyor 2. Incidentally, 1a, 1b, 1c, 1d, 1e are gravity roller conveyors 1f, 1 arranged on the lower side.
Reference numerals g, 1h, 1i, and 1j denote gravity roller conveyors arranged on the upper side.

Further, the conveyor 2 is arranged so as to connect the article take-out device 3 provided at the downstream end of the gravity roller conveyors 1 arranged side by side, and the conveying speed is 25 m.
/ Min (416.7 mm / sec) drive roller conveyor,
A plurality of stages (two stages) are provided in the vertical direction so as to be substantially orthogonal to the gravity roller conveyor 1, and a rubber band (not shown) stretched between the roller 21 and the line shaft 22 (not shown) in a figure 8 shape. The rotation of the line shaft 22 is transmitted to the roller 21. Further, the line shafts 22 of the respective conveyors 2 are connected to each other by a chain and are driven by the same motor. A pulse encoder (not shown) is attached to one of the line shafts 22.

The article take-out device 3 includes shafts 33, 3
A pair of rail frames 32 having a plurality of rollers 31 which are vertically swung by an air cylinder 35 and a lever 36 with a fulcrum 4 as a fulcrum, and a stopper 37 for locking an article G which is self-propelled in an inclined direction. When the air cylinder 35 is at the lower end, the inclination of the rail frame 32 substantially matches the inclination of the rail frame 12, and the upper end of the stopper 37 projects from the upper surface of the roller 31. . Thus, when there is an article take-out instruction, by operating the air cylinder 35,
The upper end of the stopper 37 is lowered from the upper surface of the roller 31 and the inclination of the rail frame 32 is changed to the rail frame 12.
And the article G at the tip locked by the stopper 37 is taken out. At this time, since the rear end of the rail frame 32 is higher than the roller 11 surface of the rail frame 12, the succeeding article G is locked at the rear end of the rail frame 32 and is stored on the gravity roller conveyor 1. Only one G can be taken out to the conveyor 2, and the taken-out articles G are joined to the conveyor 2 by the wheel rail 38.

Further, the vertical transport device 4 disposed downstream of the two-stage transport conveyor 2 is an article transport tool 4 having a skewered (fork) -shaped article placing portion 411 and a guide roller 412.
An endless rotating body (endless chain) 42 stretched in a substantially rectangular shape by one and four sprocket wheels 43, a first guide frame 44 arranged along the rotation path of the endless chain 42, and an endless chain. A second guide frame 45, which has substantially the same shape as the rotation locus of 42 and is displaced vertically and horizontally, and an auxiliary guide frame 46 for keeping the article carrier 41 in a constant posture 2 (only two are shown in FIG. 2) is fixed to the endless chain 42 having a speed of 30 m / min (1830).
mm) rotatably attached, and the article transport tool 41 kept in a constant posture (substantially horizontal) by the first guide frame 44, the second guide frame 45, and the auxiliary guide frame 46 is continuously arranged in the vertical direction. It is designed to rotate.

Reference numeral 5 denotes a transfer conveyor which is arranged at the downstream end of the upper transfer conveyor 2 for transferring the article G to the vertical transfer device 4, and is a fixed fork formed by seven endless chains. It consists of a skewer-shaped conveyor 51, a movable skewer-shaped conveyor 52 which is formed in a fork shape with six endless chains and an air cylinder for sliding (not shown), and the six endless chains of the movable skewered conveyor 52 are for sliding. The air cylinders move the gaps between the seven endless chains of the fixed skewer-shaped conveyor 51 or the seven skewers (forks) of the article placement unit 411 along the conveyance direction of the article G. Shape Conveyor 52 and Article Placer 4
11 and 11 are crossable. A stopper 521 is provided at the tip of the moving skew conveyor 52.

Further, 6 is a transfer conveyor which is arranged at the downstream end of the lower transfer conveyor 2 for transferring the article G to the vertical transfer device 4, and is a fork-shaped fixed member composed of 6 endless chains. It is composed of the skewer-shaped conveyor 61, and the six endless chains of the fixed skewer-shaped conveyor 61 are the article mounting portions 411.
It is arranged in the gap between the seven skewers (forks), and the fixed skewer-shaped conveyor 61 and the article placing portion 411 are configured to be crossable with each other. A stopper 611 is provided at the tip of the fixed skewer conveyor 61.

Reference numeral 7 denotes a take-out conveyor for taking out the article G from the vertical conveying device 4, which is a fixed skewer-like conveyor 71 which is formed in a fork shape by six endless chains and a drive roller arranged downstream thereof. The fixed skewer conveyor 71 and the six endless chains of the fixed skewer-shaped conveyor 71 are arranged in the gaps between the seven skewers (forks) of the article placing portion 411. And are configured to be crossable.

Further, a confluence control device (not shown) is provided, and the transfer conveyor 2 has a virtual space β of a constant length (pitch).
Is set, and when the set virtual space β reaches a position facing the gravity roller conveyor 1 storing the articles G to be merged in the virtual space β, the articles G to be merged by the article take-out device 3 Are controlled to be taken out.

Next, the articles G accommodated in the gravity roller conveyor 1 of the above-mentioned article arranging equipment are taken out to the conveyors 2 at the respective stages and joined, and the articles G joined to the respective conveyors 2 are collected. A method will be described in which the vertical conveyance device 4 merges the articles G into one row and the merged articles G are taken out to the take-out conveyor 7.

When the arrangement interval of the five rows of gravity roller conveyors 1 arranged in parallel along each of the lower and upper transfer conveyors 2 is 700 mm, the 5th maximum from the downstream end Upstream gravity roller conveyor 1e,
The distance from 1j, that is, the offset value α, is 700 mm for the gravity roller conveyors 1d and 1i adjacent to the gravity roller conveyors 1e and 1j, and the gravity roller conveyor 1 adjacent to the gravity roller conveyors 1d and 1i.
c, 1h is 1400 mm, gravity roller conveyor 1
Gravity roller conveyors 1b, 1b adjacent to c, 1h
g is 2100 mm, gravity roller conveyor 1b, 1
Gravity roller conveyors 1a, 1f adjacent to g are 2
800 mm.

The length of the gravity roller conveyor 1, that is, the dimension in the direction of the conveyor 2 is 600 m at maximum.
The articles G of various sizes up to m, for example, the article Ga on the gravity roller conveyor 1a, the article Gb on the gravity roller conveyor 1b, and the article Gj on the gravity roller conveyor 1j, respectively. They are stored (the article G is shown in the same size in FIG. 8).

Then, on the take-out conveyor 7, for example,
The ten articles G are in the following order: articles Ga, Gg, G
When there is a load alignment command so as to be taken out by j, Gj, Gd, Gi, Gi, Gh, Gj, and Gd, the articles G conveyed on the respective conveyors 2 are merged with the vertical conveyor 4 at the timing. Correspondingly, the phase difference γ is set to the timing at which the articles G are merged from the gravity roller conveyor 1 for each of the transport conveyors 2 [the phase difference γ is set to the upper transport conveyor 2 with the lower transport conveyor 2 as a reference (the delivery conveyor 5 And the interval of the transfer conveyor 6 in the step direction 700 mm ÷
The speed of the endless chain 42 is set to 30 m / min =) 1.4 seconds], and the phase difference γ is added to the timing of joining the articles G from the gravity roller conveyor 1 to the respective conveyors 2 (to the lower conveyors 2). 0 seconds are added to the timing of joining the articles G, and 1.4 seconds are added to the timing of joining the articles G to the upper-stage transport conveyor 2), and the articles G from the gravity roller conveyor 1 are kept constant on the respective transport conveyors 2. Pitch (endless chain 42 of article carrier 41
The calculation and control are performed so that they are joined at a mounting interval of 1830 mm / the speed of the endless chain 42 at 30 m / min = 3.66 seconds), and the articles G joined at the respective conveyors 2 are merged at the upper and lower conveyors 4. Then, the desired articles G are joined in a desired order.

That is, the article Ga first taken out to the take-out conveyor 7 is taken out from the gravity roller conveyor 1a, but since the offset value α of the gravity roller conveyor 1a is located at the most downstream of the offset value α of 2800 mm, from the start of load alignment. , G delayed by the offset value α
a is taken out. That is, 2800 mm from the start of packing
÷ 416.7 mm / second = 6.72 seconds later, the article Ga is transferred from the gravity roller conveyor 1a to the lower conveyor conveyor 2
The article take-out command is given to the article take-out device 3 provided at the downstream end of the gravity roller conveyor 1a. Since the phase difference γ of the lower conveyer 2 is 0 second, it is not necessary to add the phase difference γ to the above time.

The article Ga taken out by the take-out conveyor 7 next to the article Ga is a gravity roller conveyor 1 arranged along the upper conveyor conveyor 2 different from the article Ga.
Since it is stored in g, the phase difference γ of 1.4 seconds is added so that it can be merged.
A certain length (conveyance pitch of the article conveyor 41 of 3.66 seconds ×
(Transportation speed of the conveyor 2 is 25 m / min = 1525 mm)
The virtual space β is continuously set according to the merging order of the articles G, and when the predetermined virtual space β reaches the position facing the articles G to be merged, the article G is taken out so as to be taken out to the conveyor 2. A command is given to the article take-out device 3 provided at the downstream end of the gravity roller conveyor 1, and the articles G are fed at a constant pitch (3.66 seconds, that is, 152).
Since they are merged at an interval of 5 mm, the offset value α of the article Ga transferred to the vertical transport device 4 first
And the extraction time to the conveyor 2 excluding the phase difference γ, that is, 1.4 seconds of the phase difference γ and the time required for moving the virtual space βa set on the conveyor 2 after 0 seconds, that is, 1525 mm ÷ 416.7 mm / sec = 3.66
After 5.06 seconds after adding the second, the offset value α of the gravity roller conveyor 1g is 2100 mm, that is, 2100 mm.
mm ÷ 416.7 mm / sec = 5.04 sec.
An article take-out command is given to the article take-out device 3 provided at the downstream end of the gravity roller conveyor 1g so that the article Gg is taken out from the gravity roller conveyer 1g into the virtual space βg set in the upper conveyer 2 after one second. To be

The article Gj to be taken out to the take-out conveyor 7 next to the article Gg is stored in the gravity roller conveyor 1 in the same stage as the article Gg, and thus the article G stored in the gravity roller conveyor 1 in the same stage is When continuously taken out of the conveyor 2 and merged,
It takes time for the virtual space βg set in the conveyor 2 to move after the take-out time to the conveyor 2 excluding the offset value α of the article Gg transferred to the vertical conveyor 4 first, that is, 5.06 seconds. After a lapse of time, that is, 8.72 seconds after adding 3.66 seconds, the article take-out command is issued from the gravity roller conveyor 1j so that the article Gj is taken out from the gravity roller conveyor 1j to the virtual space βj set on the upper-stage side conveyor 2. It is given to the article take-out device 3 provided at the downstream end. Since the offset value α of the gravity roller conveyor 1j is 0 mm, it is not necessary to add the offset value α to the above time.

Since the article Gj is continuously taken out after the article Gj, the above-mentioned taking-out time, that is, the time required for the virtual space βj set in the conveyor 2 to move after 8.72 seconds, that is, 3. After 12.38 seconds after adding 66 seconds, an article take-out command is provided at the downstream end of the gravity roller conveyor 1j so as to take out the article Gj from the gravity roller conveyor 1j to the virtual space βj set in the upper conveyor conveyor 2. It is given to the obtained article take-out device 3.

The article Gd taken out to the take-out conveyor 7 next to the article Gj is stored in the gravity roller conveyor 1 on the lower stage side different from the article Gj. At the same time, the article Gj transferred to the vertical transport device 4 is set to the transport conveyor 2 after the take-out time to the transport conveyor 2 excluding the offset value α and the phase difference γ, that is, 10.98 seconds. The time required for the virtual space βj to move, that is, 3.6
14.64 seconds after adding 6 seconds, the offset value α of the gravity roller conveyor 1d is equal to 700 mm ÷ 41.
After 16.32 seconds after adding 6.7 mm / second = 1.68 seconds, the article take-out command is issued so that the article Gd is taken out from the gravity roller conveyor 1d into the virtual space βd set in the lower conveyor conveyor 2. It is given to the article take-out device 3 provided at the downstream end of the conveyor 1d.

Since the article Gi taken out to the take-out conveyor 7 after the article Gd is stored in the gravity roller conveyor 1 on the upper stage side different from the article Gd, the phase difference γ of 1.4 seconds is added to join the article Gi. In addition to the above, at the time of taking out to the conveying conveyor 2 excluding the offset value α and the phase difference γ of the article Gd previously taken out to the vertical conveying device 4, that is, 14.64 seconds later, the phase difference γ 1.
4 seconds and the time required for the virtual space βd set on the conveyor 2 to move, that is, 3.66 seconds are added.
After 7 seconds, the offset value α of the gravity roller conveyor 1i is 700 mm, that is, 700 mm ÷ 416.7 mm /
After 21.38 seconds after adding the second = 1.68 seconds, an article take-out command is issued downstream of the gravity roller conveyor 1i so as to take out the article Gi from the gravity roller conveyor 1i to the virtual space βi set in the upper conveyor conveyor 2. It is given to the article take-out device 3 provided at the end.

Since the article Gi is continuously taken out after the article Gi, the time taken for moving the virtual space βi set on the conveyor 2 after the above taking-out time, that is, 21.38 seconds, is 3.66 seconds. The article take-out command is provided at the downstream end of the gravity roller conveyor 1i so that the article Gi is taken out from the gravity roller conveyor 1i to the virtual space βi set in the upper conveyor 2 after 25.04 seconds after the addition of It is given to the take-out device 3.

Since the article Gh taken out to the take-out conveyor 7 next to the article Gi is stored in the gravity roller conveyor 1 in the same stage as the article Gi, the offset value α of the article Gi delivered to the up-and-down conveying device 4 first. The removal time to the conveyor 2 excluding the minutes, that is, the time required for moving the virtual space βi set in the conveyor 2 after 23.36 seconds, that is, 27.02 seconds after adding 3.66 seconds, Offset value α of gravity roller conveyor 1h
Minute 1400mm, that is 1400mm ÷ 416.7mm /
After 30.38 seconds in which seconds = 3.36 seconds are added, an article take-out command is issued downstream of the gravity roller conveyer 1h so as to take out the article Gh from the gravity roller conveyer 1h to the virtual space βh set in the upper conveyer conveyor 2. It is given to the article take-out device 3 provided at the end.

Since the article Gj taken out to the take-out conveyor 7 next to the article Gh is stored in the gravity roller conveyor 1 in the same stage as the article Gh, the offset value α of the article Gh transferred to the vertical conveying device 4 first. The removal time to the transport conveyor 2 excluding the minutes, that is, 27.02 seconds later, the time required for the virtual space βh set in the transport conveyor 2 to move, that is, 30.68 seconds after adding 3.66 seconds, An article take-out command is given to the article take-out device 3 provided at the downstream end of the gravity roller conveyer 1j so as to take out the article Gj from the gravity roller conveyer 1j to the virtual space βj set in the upper conveyer conveyor 2. Since the offset value α of the gravity roller conveyor 1j is 0 mm, it is not necessary to add the offset value α to the above time.

Since the article Gd taken out to the take-out conveyor 7 next to the article Gj is stored in the gravity roller conveyor 1 on the lower stage side different from the article Gj, the phase difference γ of 0 second is added so that the article Gd is merged. At the same time, the article Gj delivered to the up-and-down transport device 4 is set to the transport conveyor 2 after the take-out time to the transport conveyor 2 excluding the offset value α and the phase difference γ, that is, 29.28 seconds. The time required for the virtual space βj to move, that is, 3.6
32.94 seconds after adding 6 seconds, the offset value α of the gravity roller conveyor 1d is 700 mm / 41
After 34.62 seconds after adding 6.7 mm / second = 1.68 seconds, the article take-out command is issued so that the article Gd is taken out from the gravity roller conveyor 1d into the virtual space βd set in the lower conveyer conveyor 2. It is given to the article take-out device 3 provided at the downstream end of the conveyor 1d.

A value obtained by multiplying the time until each article G is taken out from the gravity roller conveyor 1 by the computer (not shown) as described above and the transportation speed 416.7 mm / sec of the transportation conveyor 2 is obtained. , The transport distances of the respective virtual spaces β from the start of the load alignment until the respective articles G are taken out. Therefore, the transport distance of the virtual space β during one pulse of the pulse encoder attached to the line shaft 22 of the transport conveyor 2 is excluded from the transport distance of the virtual space β from the start of load alignment until each article G is taken out. The obtained value is a pulse value from the start of the load arranging at which the respective articles G should be taken out. Thus,
The computer transmits the pulse value from the start of the packing and the number of the gravity roller conveyor 1 from which each article G is to be taken out to a sequencer (not shown). The sequencer receiving the data stores the pulse value from the start of the load alignment and the number of the gravity roller conveyor 1 from which the articles G should be taken out, and starts counting the pulses of the pulse encoder simultaneously with the start of the load alignment. The air cylinder 35 of the article take-out device 3 provided at the downstream end of the gravity roller conveyor 1 which matches the commanded pulse value is operated to take out a predetermined article G to the conveyor 2.

As described above, the articles G merged at a constant pitch from the plurality of gravity roller conveyors 1 are conveyed to the transfer conveyors 5 and 6 arranged at the downstream end portions of the respective conveyors 2 and vertically. When the article placing section 411 of the conveying device 4 reaches the position where the fixed skewer conveyor 61 or the movable skewer conveyor 52 intersects, the article G is continuously scooped up by the article placing section 411 passing from the lower side to the upper side. Then, the articles are transferred to the article transport tool 41 and merged. When the article G reaches the loading section of the fixed skew conveyor 51 of the delivery conveyor 5, the moving skew conveyor 52 is moved to a position where it crosses the article placement section 411, and the article G is received by the article transport tool 41. After being delivered, the original state is restored (however, when the succeeding article G is delivered from the moving skew conveyor 52 to the article conveying tool 41, the succeeding article G is
Is returned to the original state after being delivered to the article transport tool 41). Further, depending on the timing at which the articles G transported on the respective transport conveyors 2 are delivered to the article transport tool 41, the phase difference γ at the timing of joining the articles G from the plurality of gravity roller conveyors 1 for each transport conveyor 2. Is set, and the phase difference γ is set at the timing of joining the articles G from the gravity roller conveyor 1 to the respective conveyors 2.
Therefore, the timing when the article G reaches the fixed skew conveyor 61 or the moving skew conveyor 52 and the timing when the article G is picked up by the article placing unit 411 are substantially the same.

Further, the articles G merged by the vertical transport device 4
Is taken out by passing the article placement section 411 on which the article G is mounted from the upper side to the lower side of the fixed skewer conveyor 71 of the take-out conveyor 7, and the articles Ga, Gg, Gj, Gj, Gd on the drive roller conveyor 72. , Gi, Gi, G
It is taken out in the order of h, Gj, and Gd.

Thus, the articles G taken out by the drive roller conveyor 72 are branched to the gravity roller conveyors 1001 arranged in a plurality of rows through the transfer conveyor 1002 so as to be packed.

The structure around the gravity roller conveyor 1001 will be described. The gravity roller conveyor 1
001 is a slanted arrangement of a pair of rail frames 1012 including a plurality of rollers 1011. The article G supplied onto the gravity roller conveyor 1001 is self-propelled on the rollers 1011 and stored therein. After that, the article is taken out by the article take-out device 1003, passes through the telescopic swing conveyor 1005, and then the article supply conveyor 2002.
Loaded on top.

The conveyor 1002 is a drive roller conveyor arranged so as to connect the upstream ends of the gravity roller conveyors 1001 arranged in parallel, and is arranged downstream of the drive roller conveyor 72. At the branch point from the conveyor 1002 to the gravity roller conveyor 1001, a roller 1021 is provided by an air cylinder (not shown).
A branching device 1004 including a pair of endless chains 1041 and the like that are swung so as to project and retract with respect to the upper surface is provided. In addition, the article G is provided on the upstream side of the conveyor 1002.
There is provided a direction changing device (not shown) for changing the conveying direction of 90 ° to the horizontal direction by 90 °.

The article take-out device 1003 is composed of a plurality of rollers 1 which are moved up and down by an air cylinder (not shown).
A pair of rail frames 1032 provided with 031 and a pair of rail frames 1034 provided with a plurality of rollers 1033 and fixedly installed on the downstream side of the rail frame 1032.
And a stopper 1035 provided at the upstream end of the rail frame 1034, and the upper surface height of the roller 1031 matches the upper surface height of the roller 1011 when the air cylinder is at the lower end. The stopper 1035 is adapted to lock the article G which is self-propelled in the inclination direction. Then, when there is an article take-out command, by operating the air cylinder,
The top end of the article G locked by the stopper 1035 is taken out so that the upper surface height of the roller 1031 matches the upper surface height of the roller 1033. At that time, the rail frame 10
Since the rear end of 32 is higher than the upper surface of the roller 1011, the succeeding article G is locked at the rear end of the rail frame 1032, and the article G stored on the gravity roller conveyor 1001 is transferred to the telescopic swing conveyor 1005. After that, they can be taken out one by one to the article supply conveyor 2002.

A fluidized shelf F consisting of 26 gravity roller conveyors 1a, 1b, ..., 1z arranged in a plurality of rows and a plurality of stages (of 5 rows × 2 stages (= 10) shown in FIG. 1) Another embodiment different from the fluidized shelf F including the gravity roller conveyor 1] The articles G stored in the driving roller conveyor 72,
Explaining a method of branching to the gravity roller conveyors 1001 arranged in a plurality of rows via the conveyor 1002 and aligning the loads, as shown in FIG. 11, articles of the same type in the first row, first column of the pallet P, For example, the length is 300
An article Ga having a height of 50 mm and a height of 50 mm is provided in m steps (for example, 4 steps)
Stowed, items of the same type in the second row, eg 30 in length
An article Gu having a height of 0 mm and a height of 70 mm is n stages (for example, 3
Articles of the same type in the third row, for example, articles Gc having a length of 300 mm and a height of 50 mm are stacked in o rows (for example, 4 steps), and articles of the same type in the fourth row, for example, length Articles Gv having a height of 300 mm and a height of 70 mm are stacked in p steps (for example, 3 steps), and articles of the same type in the fifth row, for example, articles Ge having a length of 300 mm and a height of 50 mm are r steps (for example, 4 steps). ) In the case of stacking, four articles Ga from the gravity roller conveyor 1a, four articles Gc from the gravity roller conveyor 1c, four articles Ge from the gravity roller conveyor 1e, and three articles from the gravity roller conveyor 1u 3 of the articles Gu are taken out from the gravity roller conveyor 1v, passed through the drive roller conveyor 72 and the transfer conveyor 1002, and then each branching device 100. 4 articles Ga are aligned on the first gravity roller conveyor 1001 from the downstream side of the transfer conveyor 1002, and three articles Gu are loaded on the second gravity roller conveyor 1001 from the downstream side. Four articles Gc are aligned and loaded onto the third gravity roller conveyor 1001 from the downstream side, and the fourth gravity roller conveyor 1 from the downstream side is aligned.
Three articles Gv are lined up on 001, and 5 from the downstream side.
Four articles Ge are loaded on the second gravity roller conveyor 1001. 18 items G arranged
As will be described later, the articles are stacked on the pallet P by the article stacking device 2000 in an arrangement of 3 to 4 stages × 5 rows.

Further, as shown in FIG. 12, an article G of a different product type, for example, an article Gw having a length of 390 mm and a height of 50 mm from the bottom, having a length of 33 in the second row and the first column of the pallet P is used.
Article Gx with a height of 0 mm and a height of 110 mm, and a length of 390 m
The second row to the fifth row in the order of the article Gz having a height of m and a height of 70 mm.
Row length of 300 mm and height of 50 mm or 100 m
m articles G from the bottom in the second row, for example, articles Gb, Gg, G
In the order of q, in the third row from the bottom, the articles Gc, Gh, and Gr in the order, and in the fourth row, the articles Gd, Gi, and Gs from the bottom,
In the case of stacking the articles Ge, Gj, and Gt from the bottom in the fifth row, one article Gb from the gravity roller conveyor 1b, one article Gc from the gravity roller conveyor 1c, and one article Gc from the gravity roller conveyor 1d. One article Gd, one article Ge from the gravity roller conveyor 1e, one article Gg from the gravity roller conveyor 1g, one article Gh from the gravity roller conveyor 1h, one article from the gravity roller conveyor 1i The article Gi is one article Gj from the gravity roller conveyor 1j, one article Gq from the gravity roller conveyor 1q, one article Gr from the gravity roller conveyor 1r, and one article from the gravity roller conveyor 1s. Gs is one article Gt from the gravity roller conveyor 1t. One article Gw is taken out from the tee roller conveyor 1w, one article Gx is taken out from the gravity roller conveyor 1x, and one article Gz is taken out from the gravity roller conveyor 1z, and they are passed through the drive roller conveyor 72 and the transfer conveyor 1002, respectively. Branching device 1004
And the articles Gw, Gx, and Gz on the first gravity roller conveyor 1001 from the downstream side of the transport conveyor 1002 in this order, and the articles Gb and Gg on the second gravity roller conveyor 1001 from the downstream side.
In the order of Gq, on the third gravity roller conveyor 1001 from the downstream side, in the order of the articles Gc, Gh, and Gr,
The fourth gravity roller conveyor 1001 from the downstream side
The articles Gd, Gi, and Gs are on the top, and the articles G are on the fifth gravity roller conveyor 1001 from the downstream side.
e, Gj, Gt are ordered in this order, and 15
The individual articles G are stacked on the pallet P by the article stacking device 2000 in an arrangement of 3 rows × 5 rows.

Further, the article stacking apparatus 2000 is provided with a pallet transport conveyor 20 for horizontally transporting the pallets P.
01, a plurality of rows for supplying the articles G to be loaded on the pallet P or the articles G previously loaded from the gravity roller conveyor 1001 by the article take-out device 1003 and through the telescopic swing (belt) conveyor 1005 (Two rows) article supply conveyor 2002, lifting device 2003 for lifting article supply conveyor 2002,
The lifting device 2003 is provided with a moving device 2004 or the like that moves along the supply direction of the articles G, and the lifting device 2003 sets the speed at which the article supply conveyor 2002 is moved upward by 2
The articles can be changed in stages. By moving the article supply conveyor 2002 with respect to the pallet P in the horizontal direction and the vertical direction, the articles G stored in the plurality of rows of gravity roller conveyors 1001 are placed on the pallet P. It is designed to be stowed. Incidentally, the article supply conveyor 200
Reference numeral 2 is composed of a telescopic belt conveyor 2002a configured to be capable of advancing and retreating as indicated by the one-dot chain line or two-dot chain line in FIG. 7 along the supply direction of the article G, and a belt conveyor 2002b configured to have a constant length. ing. Further, the pallet transport conveyor 2001 is composed of a drive roller conveyor, and the lifting device 2003 is composed of a table lifter. Further, the moving device 2004 includes a rack 2041 and a pinion 2042, and is configured to move the elevating device 2003 in the supply direction of the article G along the guide 2043. Further, one end of the telescopic swing belt conveyor 1005 is rotatably attached to the downstream end of the rail frame 1034 of the article removing device 1003, and the other end is rotatably attached to the upstream end of the article supply conveyor 2002. Has been
The telescopic swing belt conveyor 1005 is the article supply conveyor 2
It is configured to expand and contract and swing as the 002 moves in the horizontal and vertical directions. Reference numeral 2011 is an article regulation plate. Then, the articles G stored in the gravity roller conveyors 1001 arranged in a plurality of rows at intervals according to the rising time of the article supply conveyor 2002 are taken out, aligned on the article supply conveyor 2002, and moved upward. The packed articles G in the inside are supplied onto the pallet P or the articles G previously stacked and stacked in a columnar shape (longitudinal direction), and a plurality of rows and columns of columns are formed on the pallet P. It is designed to work. Incidentally, when the articles G are supplied on top of the articles G previously stacked,
The article supply conveyor 2002 is adapted to move upward at a low speed.

That is, as shown in FIG. 9, the article supply conveyor 2002 mounted on the elevating device 2003 has the pallet P.
Is moved to a position directly above the
Thus, the ends of the telescopic belt conveyor 2002a and the belt conveyor 2002b of the article supply conveyor 2002 are moved to a position where articles G forming the first row column can be stacked. That is, the four articles Ga stacked in the first row, the three articles Gu stacked in the second row, and the third article Ga
Since the lengths of the four articles Gc stacked in the row, the three articles Gv stacked in the fourth row, and the four articles Ge stacked in the fifth row are all 300 mm, the columnar shape is obtained. The stacking position of 18 articles G to be stacked is determined based on the length (300 mm) of these articles G.

When the article supply conveyor 2002 is moved to the stacking start position, the succeeding articles G stored in the gravity roller conveyors 1001 arranged in a plurality of rows at intervals according to the rising time of the article supply conveyor 2002. Are taken out by the article taking-out device 1003 (for example, as will be described later, articles Ga, Gc,
The articles Ga, Gc, and Ge that are taken out after Ge are taken out after 1.0 seconds, and the articles Gu and Gv that are taken out after the articles Gu and Gv having a height of 70 mm are taken out after 1.4 seconds. When the detector (not shown) mounted on the article supply conveyor 2002 through the oscillating belt conveyor 1005 and arranged at the leading end of the article supply conveyor 2002 detects the arrival of the leading article G, the lifting device 2003 moves up. At the same time as the start, the articles G which are continuously supplied by the article supply conveyor 2002 and are moving upward are supplied and stacked so as to be stacked on the pallet P or the articles G previously stacked. (See the phantom line in FIG. 9), as shown in FIG.
Are stacked in columns (vertical direction). Incidentally, the lifting device 2003 when the articles G are stacked on the pallet P
When the articles G having a low height are stacked, the ascending speed of the articles is continuously increased at a low speed (3 m / min or less), so that the articles Ga, Gc having a height of 50 mm are , Ge that are taken out after Ge, Ga
c and Ge are 50 mm / 3 m / min = 1.0 seconds later, and the articles Gu and Gv having a height of 70 mm are taken out after the articles Gu and Gv are 70 mm / 3 m / min = 1.4 seconds later. Since the articles 1003 are taken out by the apparatus 1003 and are loaded and arranged on the article supply conveyor 2002 via the telescopic swing belt conveyor 1005, the succeeding articles G are provided at the timing when the upper surface of the article G already stacked and the upper surface of the article supply conveyor 2002 are substantially coincident with each other. Can be stacked in a column shape on the articles G that have been previously supplied and stacked, and various articles G having different heights can be stacked on the pallet P without disturbing the arrangement. it can.

When the final articles G forming the first row of columns are stacked on the pallet P, the article feeding conveyor 2002 is moved by the moving device 2004 by the belt conveyor 200 of the article feeding conveyor 2002 as shown in FIG.
The tip of 2b is moved to a position where the articles G forming the second row of columns to be stacked in the second to fifth columns can be stacked and is lowered to a position directly above the pallet P. That is, the three articles Gb, G stacked in the second row
g, Gq, three articles Gc, G stacked in the third row
h, Gr, three articles Gd, G stacked in the fourth row
i, Gs, three items Ge, G stacked in the fifth row
Since the lengths of j and Gt are all 300 mm, the stacking positions of the twelve articles G stacked in a column shape are determined based on the length (300 mm) of these articles G,
The belt conveyor 2002b is moved 300 mm by the moving device 2004. Incidentally, the belt conveyor 2002b
Simultaneously with the movement of, the tip of the elastic belt conveyor 2002a of the article supply conveyor 2002 is moved back by (390 mm-300 mm =) 90 mm as shown by the alternate long and short dash line in FIG. That is, with the maximum length (300 mm) of the articles G stacked in the second to fifth rows as a reference, the article Gw of 390 mm in length and the article Gx of 330 mm in length that is stacked in the first row. Article G with a size of 390 mm
Since it is determined based on the article G having the maximum length of z, that is, the articles Gw and Gz having a length of 390 mm, the tip of the telescopic belt conveyor 2002a is retracted 90 mm with respect to the tip of the belt conveyor 2002b. As a result, three articles Gw, Gx, Gz can be stacked at predetermined positions.

The elastic belt conveyor 2002a and the belt conveyor 2002b of the article supply conveyor 2002 are the second
When the articles G forming the column of the row are moved to the stacking start position, they are successively stored in the gravity roller conveyors 1001 arranged in a plurality of rows at intervals according to the rising time of the article supply conveyor 2002. The article G is taken out by the article take-out device 1003 (for example, as will be described later, articles Gg, Gh, Gi, G having a height of 100 mm).
Items Gq, Gr, Gs, Gt taken out after j
1.52 seconds later, an article Gx having a height of 110 mm and subsequently taken out is an article Gz taken out 1.64 seconds later), and the articles are aligned on the article supply conveyor 2002 via the expansion / contraction swing belt conveyor 1005. Article supply conveyor 2
When a detector (not shown) attached to the front end of 002 detects the arrival of the leading article G, the elevating device 2003 starts to rise, and at the same time, the article is continuously supplied by the article supply conveyor 2002 and is moving upward. The aligned articles G are supplied and stacked so as to be stacked on the pallet P or the articles previously stacked (see the phantom line in FIG. 10), and a plurality of types of articles are provided as shown in FIGS. 12 and 13. G
Are stacked in columns (vertical direction). Incidentally, the lifting device 2003 when the articles G are stacked on the pallet P
The ascending speed of is at a low speed (3 m / min or less) when a high-height article G is first supplied on top of the preceding article G when the high-height article G is stacked. When a high-height article G is lifted and stacked on the preceding article G, the upper surface and the article supply of the high-height article G stacked at a high speed (5 m / min or less) Since the upper surface of the conveyor 2002 rises to substantially coincide with the upper surface of the conveyor 2002, the articles Gq, Gr, Gs, and Gt taken out after the articles Gg, Gh, Gi, and Gj having a height of 100 mm are 40 mm (preceding Amount of rise while the product G having a high height is supplied on the product G)
3 m / min + 60 mm / 5 m / min = 1.52 seconds later, the article G taken out following the article Gx having a height of 110 mm
z is 40 mm (an article G which is higher than the preceding article G in height
Amount of rise during supply of)) / 3 m / min + 70 mm ÷
After 5 m / min = 1.64 seconds, the articles are taken out by the article take-out device 1003 and aligned on the article supply conveyor 2002 via the telescopic swing belt conveyor 1005. Therefore, the upper surface of the articles G already stacked and the article supply conveyor 200 are loaded.
2 can be stacked in a column shape on the article G previously supplied and stacked at a timing substantially coincident with the upper surface of No. 2, and the height can be increased without disturbing the arrangement. Since various different articles G can be stacked on the pallet P and the speed at which the article supply conveyor 2002 is moved upward can be changed in two steps, it follows that the article G preceding the article G When the article G to be processed is supplied, the article G can be stacked at a low speed without disturbing the arrangement, and when the article G having a high height is stacked on the preceding article G, the upper surface of the article G and the article G It is designed to rise at a high speed until the upper surface of the supply conveyor 2002 is substantially aligned (when the succeeding articles G are not stacked), so that the articles G having a high height can be efficiently stacked. Can.

Similarly, the pallets P stacked up to the third row column are unloaded by the pallet transport conveyor 2001.

Although the article loading method of the present invention has been described above with reference to the example of the article arranging equipment suitable for carrying out the method, the article loading method of the present invention is not limited to these. For example, the speed at which the article supply conveyor 2002 is moved upward may be appropriately set according to the height dimension of the articles G to be stacked.

Further, the width dimension of the article G may be different for each type (product type).

In consideration of the order of unloading the stacked articles G from the pallet P, the articles G may be stacked in the reverse order of the unloading order.

Further, the article supply conveyor 2002 may be configured not to be moved in the horizontal direction, but to be configured to move the pallet P in the supply direction of the article G.

[0053]

Since the article stacking method of the present invention is configured as described above, it is possible to change the speed at which the article supply conveyor for supplying the articles to be stacked is moved upward, and to increase the height. Highly efficient articles can be efficiently loaded at high speed.

[Brief description of drawings]

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

FIG. 2 is an elevational view of an essential part, which partially shows an example of the article assembling equipment.

FIG. 3 is an enlarged side view showing a downstream end portion of the gravity roller conveyor shown in FIG. 1;

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a plan view showing an example of a gravity roller conveyor.

FIG. 6 is a side view partially showing an example of the gravity roller conveyor.

FIG. 7 is a perspective view showing an example of an article stacking apparatus.

FIG. 8 is an explanatory diagram of an example of a method for arranging goods by means of an equipment for arranging goods.

9 is a side view for explaining the operation of the article stacking device shown in FIG. 7. FIG.

FIG. 10 is a side view for explaining the operation of the article stacking apparatus shown in FIG.

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

FIG. 12 is a perspective view showing a state of articles stacked on a pallet by the article stacking apparatus shown in FIG.

FIG. 13 is an AA view of the state of the articles stacked on the pallet shown in FIG.

[Explanation of symbols]

 2002 (article supply) conveyor 2003 lifting device G article

Claims (2)

[Claims] 1. A method of stacking articles, in which articles moving upward are stacked on articles previously stacked, wherein a speed at which a conveyor for supplying the stacked articles is moved upward is changed. In addition to being able to do, load the articles at intervals according to the rising time of the conveyor,
A method of stacking articles, characterized in that a sorted article moving upward is stacked on an article previously stacked. 2. The method for stacking articles according to claim 1, wherein the conveyor is moved upward at a low speed when the articles are supplied on the articles previously stacked.