JP3069889B2 - How to pack 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 of stacking articles to be loaded with a subsequent article on an article moving downward, and more particularly to a method of stacking articles in a column shape. Things.

[0002]

2. Description of the Related Art As a conventional technique relating to a method of packing articles, the one described in Japanese Patent Application Laid-Open No. 5-58452 is known.

The prior art described in the above publication is described in Japanese Patent Application Laid-Open No. Hei 5-58452, in which the same item product or the same group product is moved up and down along the same wall by sequentially moving an article transport conveyor or a pallet. hand,
There is described a loading method in which articles are stacked in a bar shape along the wall while abutting the wall, and are sequentially placed in a state of being vertically stacked on a pallet.

[0004]

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

That is, JP-A-5-58452 discloses that
When stacking subsequent articles, it is not described whether the preceding article is moving downward, and at least one of a plurality of articles stacked in a column is included in the loading unit. No mention is made as to whether or not it can be packed by being packed in a container.

[0006] Accordingly, an object of the present invention is to provide a method in which when at least one of a plurality of articles stacked in a column is packed in a packing section, the packed articles are being moved downward. By being able to be stacked on the articles, it is possible to reduce the article storage capacity required for the loading section and to stack the articles so that the articles can be stacked in a low space. It is to provide a method.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a method for stacking articles following one another on an article moving downward, wherein at least one of a plurality of articles stacked in a column is provided. When the articles are packed in the packing section, the articles packed in the packing section are taken out at intervals according to the descent time of the stacked articles, and the taken-out articles are moved downward. along with the attached stacked on top of, after
If the following items are not loaded in the loading section,
And the goods taken out of the above-mentioned
When the goods are loaded, the downward movement of the
The above object has been achieved by providing a method of packing articles, wherein the method is adapted to stop .

[0008]

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below together with examples of equipment for arranging articles suitable for carrying out the present invention.

FIG. 1 is a perspective view partially showing an embodiment of an article packing apparatus, FIG. 2 is an elevation view of a main part partially showing an embodiment of an article packing apparatus, and FIG. 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 the load arranging section (gravity roller conveyor), FIG. 6 is a side view partially showing an embodiment of the load arranging section (gravity roller conveyor), FIG. 7 is a perspective view showing one embodiment of an article packing apparatus, FIG. 8 is an explanatory view of one embodiment of a packing method using a packing apparatus for articles, and FIGS. 9 and 10 are views of the article shown in FIG. FIG. 11 is a side view for explaining the operation of the stowage device.
And FIG. 12 is a perspective view showing a state of the articles stacked on the pallet by the article stacking apparatus shown in FIG. 7, and FIG. 13 is an AA of the state of the articles stacked on the pallet shown in FIG. FIG.

In these drawings, reference numeral 1 denotes a type (type).
Separately, a gravity roller conveyor for storing articles G is provided with a plurality of rows (5 rows) in the direction along the conveyor 2 and a plurality of rows (2 rows) in the vertical direction, with the tip side inclined low. The gravity roller conveyor 1 constitutes a fluidized shelf F having a plurality of rows and a plurality of stages. Further, the transport conveyor 2 is a drive roller conveyor arranged in each stage along the frontage, and is provided in two vertical stages. At the downstream end of each gravity roller conveyor 1, an article take-out device 3 is provided. Reference numeral 4 denotes an up-down transport device which is disposed downstream of the two-stage transport conveyor 2 and transports the articles G in a vertical direction at a constant pitch, and is an article transport having a skewer (fork) -shaped article placement section 411. A tool 41 and an endless rotating body 42 are provided, and the article transporting tool 41 is continuously rotated by the endless rotating body 42. Reference numeral 1001 denotes a load arranging unit according to the present invention, which is constituted by a gravity roller conveyer having a front end side for accommodating the arranged goods G inclined at a low angle, and a plurality of rows (5) in a direction along the conveyor 1002. Row) are arranged. At the downstream end of each gravity roller conveyor (loading unit) 1001, an article take-out device 1003 is provided. Reference numeral 2000 denotes an article stacking device for stacking the articles G loaded on the respective gravity roller conveyors 1001 on the pallet P. The pallet transport conveyor 2001 and the articles G are stacked on the pallet P or in advance. And a pallet P with a plurality of rows of article supply conveyors 2002 for supplying the articles G on the
Alternatively, it is provided with an elevating device 2003 capable of changing the speed at which the articles G previously stacked are moved downward. 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 and merged into the conveyors 2 of the respective stages, and the articles G merged in the respective conveyors 2 are vertically moved. The conveyed articles G are further merged into one row by the conveying device 4, branched into the gravity roller conveyors 1001 arranged in a plurality of rows via the conveying conveyor 1002, and stacked in a column shape (longitudinal direction). When at least one article G among the articles G is packed on the gravity roller conveyor 1001, the subsequent articles G packed on the gravity roller conveyor 1001 at intervals corresponding to the falling time of the stacked articles G Is taken out onto the article supply conveyor 2002, and the taken out article G is supplied onto the previously stacked article G that is moving downward, and Stowed in the arm-like,
A plurality of columns and a plurality of columns are formed on the pallet P. In addition, gravity roller conveyor 1001
When the following article G taken out from is stacked,
The downward movement of the stacked articles G is temporarily stopped.

To explain each part in the above embodiment, the gravity roller conveyor 1 is composed of a plurality of rollers 1.
The article G supplied on the gravity roller conveyor 1 is stored on the roller 11 by its own weight by self-running and then stored in the article take-out device 3. Is taken out to the conveyor 2. 1a, 1b, 1c, 1d, 1e are gravity roller conveyors, 1f, 1
g, 1h, 1i, and 1j are gravity roller conveyors disposed on the upper side.

The conveyor 2 is connected to an article take-out device 3 provided at the downstream end of the gravity roller conveyor 1 arranged side by side.
/ 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 a line shaft 22 (not shown) in a figure-eight 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 each having a plurality of rollers 31 pivoted up and down by an air cylinder 35 and a lever 36 with the fulcrum 4 as a fulcrum; and a stopper 37 for locking the articles G that are self-propelled in the inclined direction. When the air cylinder 35 is at the lower end, the inclination of the rail frame 32 substantially coincides with 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 surface of the roller 11 of the rail frame 12, the following articles G are locked at the rear end of the rail frame 32 and the articles stored on the gravity roller conveyor 1. Only one G can be taken out to the conveyor 2 and the taken-out article G is joined to the conveyor 2 by the wheel rail 38.

An up-down transport device 4 disposed downstream of the two-stage transport conveyor 2 is an article transport tool 4 having a skewered (fork) -shaped article placement section 411 and guide rollers 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 disposed along a rotation locus of the endless chain 42; A second guide frame 45, which is substantially the same shape as the rotation locus of 42, and is arranged vertically and horizontally shifted, and an auxiliary guide frame 46 for keeping the article carrier 41 in a constant posture, etc. 2 (only two of them are shown in FIG. 2), the endless chain 42 having a speed of 30 m / min.
mm), the article carrier 41 held in a fixed 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 delivery conveyor arranged at the downstream end of the upper conveyor 2 for transferring the articles G to the upper and lower conveyors 4, which is a fork-shaped fixed endless chain composed of seven endless chains. A skewer conveyor 51, a movable skewer conveyor 52 formed in a fork shape with six endless chains and a sliding air cylinder (not shown), and the six endless chains of the movable skewer conveyor 52 are used for sliding. The gap between the seven endless chains of the fixed skewer-type conveyor 51 or the seven skewers (forks) of the article placing portion 411 is moved by the air cylinder along the conveying direction of the article G. Conveyor 52 and Article Placement Unit 4
11 is configured to be able to cross. Note that a stopper 521 is provided at the tip of the moving skewer conveyor 52.

Reference numeral 6 denotes a delivery conveyor arranged at the downstream end of the lower conveyor 2 for transferring the articles G to the upper and lower conveyors 4, which is a fork-shaped fixed endless chain composed of six endless chains. The endless chain is composed of a skewer conveyor 61, and six endless chains of the fixed skewer conveyor 61
The fixed skewer-type conveyor 61 and the article placement section 411 are configured to be able to cross each other. Note that a stopper 611 is provided at the tip of the fixed skewer type conveyor 61.

Reference numeral 7 denotes a take-out conveyer for taking out the articles G from the vertical conveying device 4. The conveyer 7 is a fork-shaped fixed skewer-type conveyor 71 having six endless chains and a drive roller disposed downstream thereof. The endless six chains of the fixed skewer-type conveyor 71 are disposed in the gaps between the seven skewers (forks) of the article placement part 411, and the fixed skewer-type conveyor 71 and the article placement part 411 are provided. Are configured to be able to cross.

Further, a merging control device (not shown) is provided, and a virtual space β of a fixed length (pitch) is provided on the conveyor 2.
When the set virtual space β reaches the position facing the gravity roller conveyor 1 that stores the articles G to be merged into the virtual space β, the articles G to be merged by the article take-out device 3 Is controlled to be taken out.

Next, the articles G stored in the gravity roller conveyor 1 of the above-mentioned article packing equipment are taken out and merged into the conveyors 2 of each stage, and the articles G merged in the respective conveyors 2 are separated. A description will be given of a method in which the articles G are further merged in one line by the vertical transport device 4 and the merged articles G are taken out to the conveyor 7.

In the case where the spacing between the five rows of gravity roller conveyors 1 arranged in each stage along the lower and upper conveyors 2 is 700 mm, the fifth row of the gravity roller conveyors from the downstream end is Gravity roller conveyor 1e upstream,
The distance from the gravity roller conveyors 1e and 1j is 700 mm, the gravity roller conveyors 1d and 1i are 700 mm, and the gravity roller conveyor 1d and 1i are adjacent to the gravity roller conveyors 1d and 1i.
c, 1h is 1400 mm, gravity roller conveyor 1
c, Gravity roller conveyor 1b, 1h adjacent to 1h
g is 2100 mm, gravity roller conveyor 1b, 1
Gravity roller conveyors 1a and 1f adjacent to g
800 mm.

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

Thus, for example, the take-out conveyor 7
The ten articles G are in the following order: articles Ga, Gg, G
When there is a packing instruction so that the articles G can be taken out by j, Gj, Gd, Gi, Gi, Gh, Gj, Gd, the timing at which the articles G conveyed on the respective conveyors 2 are merged into the upper and lower conveyors 4 Accordingly, 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 conveyors 2 [the phase difference γ is transferred to the upper conveyor 2 based on the lower conveyor 2 (the transfer conveyor 5). And the gap in the step direction between the transfer conveyor 6 and 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 merging the articles G from the gravity roller conveyor 1 to the respective conveyors 2 (to the lower conveyor 2). Add 0 seconds to the timing of merging the articles G, and add 1.4 seconds to the timing of merging the articles G to the upper conveyor 2), and keep the articles G from the gravity roller conveyor 1 on the respective conveyors 2 Pitch (the endless chain 42 of the article carrier 41)
Calculation and control so that the articles G joined to the respective conveyors 2 are joined by the upper and lower conveyors 4 at an attachment interval of 1830 mm (the speed of the endless chain 42 is 30 m / min = 3.66 seconds). Then, the desired articles G are merged in a desired order.

That is, the article Ga first taken out by the take-out conveyor 7 is taken out from the gravity roller conveyor 1a, but since the gravity roller conveyor 1a is located at the most downstream position where the offset value α is 2800 mm, the goods Ga is taken from the start of packing. , The article G delayed by the offset value α
a is taken out. That is, 2800 mm from the start of packing
After 416.7 mm / sec = 6.72 seconds, the article Ga is transferred from the gravity roller conveyor 1 a to the lower conveyor 2.
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 conveyor 2 is 0 second, there is no need to add the phase difference γ to the above time.

The article Gg to be taken out by the take-out conveyor 7 after the article Ga is a gravity roller conveyor 1 disposed along the upper conveyor 2 different from the article Ga.
g, a phase difference γ of 1.4 seconds is added so that they are merged.
To a fixed length (the conveyance pitch of the article carrier 41 is 3.66 seconds x
(Transport speed of conveyor 2 is 25m / min = 1525mm)
Is set continuously according to the merging order of the articles G, and when a predetermined virtual space β reaches a position facing the articles G to be merged, the articles G are taken out so as to be taken out to the transport 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 article G is supplied at a constant pitch (3.66 seconds, ie, 152
(At intervals of 5 mm), so that the offset value α of the article Ga previously passed to the vertical transport device 4
And the take-out time to the conveyor 2 excluding the phase difference γ, that is, 0 seconds later, 1.4 seconds of the phase difference γ and the time required for the virtual space βa set in the conveyor 2 to move, 1525 mm ÷ 416.7 mm / sec = 3.66
5.06 seconds after the addition of 2 seconds, the offset value α of the gravity roller conveyor 1 g is 2100 mm, that is, 2100 mm.
10. Add mm / 416.7 mm / sec = 5.04 sec.
One second later, an article take-out command is given to the article take-out device 3 provided at the downstream end of the gravity roller conveyer 1g so as to take out the article Gg from the gravity roller conveyer 1g into the virtual space βg set in the upper conveyor 2. Can be

The article Gj to be taken out to the take-out conveyor 7 after the article Gg is stored in the gravity roller conveyor 1 at the same level as the article Gg, and thus the article G stored in the gravity roller conveyor 1 at the same level as the article Gg is stored. When being continuously taken out and merged on the conveyor 2,
It is necessary for the virtual space βg set in the conveyor 2 to move after 5.06 seconds, ie, the take-out time of the article Gg transferred to the vertical conveyor 4 excluding the offset value α. 8.72 seconds after adding the time, that is, 3.66 seconds, the article take-out command of the gravity roller conveyor 1j is issued so that the article Gj is taken out of the gravity roller conveyor 1j into the virtual space βj set in the upper conveyor 2. It is provided 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 time required for the virtual space βj set on the conveyor 2 to move after the above-mentioned take-out time, ie, 8.72 seconds, ie, 3. 12.38 seconds after adding 66 seconds, an article take-out instruction 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 into the virtual space βj set in the upper conveyor 2. Provided to the received article take-out device 3.

Since the articles Gd to be taken out to the take-out conveyor 7 after the articles Gj are stored in the lower gravity roller conveyor 1 on the lower side different from the articles Gj, a phase difference γ of 0 seconds is added so that they are joined. In addition, the removal time of the article Gj previously transferred to the vertical transport device 4 to the transport conveyor 2 excluding the offset value α and the phase difference γ, that is, the article Gj is set to the transport conveyor 2 after 10.98 seconds. 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, that is, 700 mm ÷ 41
16.32 seconds after adding 6.7 mm / sec = 1.68 seconds, an article take-out command is issued so as to take out the article Gd from the gravity roller conveyor 1d into the virtual space βd set in the lower conveyor 2. It is provided to the article take-out device 3 provided at the downstream end of the conveyor 1d.

Since the articles Gi to be taken out to the take-out conveyor 7 after the articles Gd are stored in the upper gravity roller conveyor 1 different from the articles Gd, they are combined by adding a phase difference γ of 1.4 seconds. In addition to the above, the take-out time to the conveyor 2 excluding the offset value α and the phase difference γ of the article Gd previously taken out to the vertical conveyance device 4, that is, 14.64 seconds later, the phase difference γ 1.
19. adding 4 seconds and the time required for the virtual space βd set on the conveyor 2 to move, that is, 3.66 seconds.
After 7 seconds, the offset value α of the gravity roller conveyor 1i is 700 mm, that is, 700 mm ÷ 416.7 mm /
21.38 seconds after adding 1.68 seconds, an article take-out instruction 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 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 above-mentioned take-out time, that is, the time required for the virtual space βi set on the conveyor 2 to move after 21.38 seconds 3.66 seconds 25.04 seconds after the addition, the article removal instruction is provided at the downstream end 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 2. It is provided to the take-out device 3.

Since the article Gh to be taken out by the take-out conveyor 7 after the article Gi is stored in the gravity roller conveyor 1 at the same level as the article Gi, the offset value α of the article Gi transferred first to the vertical transport device 4 The removal time to the conveyor 2 excluding the minute, that is, the time required for the virtual space βi set on the conveyor 2 to move after 23.36 seconds, that is, 27.02 seconds after adding 3.66 seconds, Offset value α of gravity roller conveyor 1h
Minute 1400 mm, that is, 1400 mm ÷ 416.7 mm /
After 30.38 seconds after adding seconds = 3.36 seconds, an article take-out command is issued downstream of the gravity roller conveyor 1h so as to take out the articles Gh from the gravity roller conveyor 1h to the virtual space βh set in the upper conveyor 2. It is given to the article take-out device 3 provided at the end.

Since the article Gj to be taken out by the take-out conveyor 7 after the article Gh is stored in the gravity roller conveyor 1 at the same level as the article Gh, the offset value α of the article Gh transferred first to the vertical transport device 4 The removal time to the conveyor 2 excluding the minute, ie, the time required for the virtual space βh set on the conveyor 2 to move after 27.02 seconds, ie, 30.68 seconds after adding 3.66 seconds, An article removal command is given to the article removal device 3 provided at the downstream end of the gravity roller conveyor 1j so as to remove the article Gj from the gravity roller conveyor 1j to the virtual space βj set in the upper 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 articles Gd to be taken out by the take-out conveyor 7 after the articles Gj are stored in the lower gravity roller conveyor 1 on the lower side different from the articles Gj, a phase difference γ of 0 second is added so that they are joined. In addition, the removal time of the article Gj transferred to the transport conveyor 2 excluding the offset value α and the phase difference γ of the article Gj previously passed to the vertical transport device 4, that is, the article Gj is set on the transport conveyor 2 after 29.28 seconds. 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, that is, 700 mm ÷ 41
34.62 seconds after adding 6.7 mm / sec = 1.68 seconds, an article take-out command is issued to remove the article Gd from the gravity roller conveyor 1d to the virtual space βd set in the lower conveyor 2. It is provided to the article take-out device 3 provided at the downstream end of the conveyor 1d.

The value obtained by multiplying the time required for each article G to be taken out of the gravity roller conveyor 1 by the conveyance speed of 416.7 mm / sec of the conveyor 2 is calculated by the computer (not shown) as described above. , The transport distance of each virtual space β from the start of packing to the removal of each article G. Therefore, the transport distance of the virtual space β from the start of packing to the removal of each article G is divided by 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. The value thus obtained is a pulse value from the start of assortment of articles to be taken out. Thus,
The computer transmits a 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 having received the data stores the pulse value from the start of the packing and the number of the gravity roller conveyor 1 from which the articles G are to be taken out, and starts counting the pulses of the pulse encoder simultaneously with the start of the packing. The air cylinder 35 of the article take-out device 3 provided at the downstream end of the gravity roller conveyor 1 that coincides with the commanded pulse value is operated to take out a predetermined article G to the transport conveyor 2.

As described above, the articles G joined from the plurality of gravity roller conveyors 1 at a constant pitch are conveyed to the transfer conveyors 5 and 6 arranged at the downstream end of the respective conveyors 2, and are moved up and down. When reaching the position where the article placement section 411 of the transport device 4 intersects with the fixed skewer conveyor 61 or the movable skewer conveyor 52, the articles G are continuously scooped up by the article placement section 411 passing upward from below. Is transferred to the article carrier 41 and further joined. When the article G reaches the loading section of the fixed skewer conveyor 51 of the delivery conveyor 5, the movable skewer conveyor 52 is moved to a position where it intersects with the article placement section 411, and the article G is received by the article carrier 41. After the delivery, the product returns to the original state (however, when the subsequent article G is delivered from the movable skewer conveyor 52 to the article transporting tool 41, the subsequent article G
Is returned to the original state after being transferred to the article transport tool 41). In addition, according to the timing at which the articles G conveyed on the respective conveyors 2 are transferred to the article conveyor 41, the phase difference γ is set at the timing at which the articles G are merged from the plurality of gravity roller conveyors 1 for each conveyor 2. And the phase difference γ is set at the timing when the articles G are merged from the gravity roller conveyor 1 to the respective conveyors 2.
Is added, the timing at which the article G reaches the fixed skewer conveyor 61 or the movable skewer conveyor 52 substantially coincides with the timing at which the article G is scooped up by the article placement unit 411.

The articles G joined by the vertical transport device 4
Are taken out by the article placing section 411 carrying the articles G passing from above to below the fixed skewer conveyor 71 of the takeout conveyor 7, and the articles Ga, Gg, Gj, Gj, Gd are placed on the drive roller conveyor 72. , Gi, Gi, G
It is extracted in the order of h, Gj, Gd.

The articles G taken out by the driving roller conveyor 72 are branched via the conveyor 1002 into the gravity roller conveyors 1001 arranged in a plurality of rows so as to be loaded.

The configuration around the gravity roller conveyor 1001 will be described.
001 is a pair of rail frames 1012 provided with a plurality of rollers 1011 arranged in an inclined manner, and articles G supplied on the gravity roller conveyor 1001 are stored on the rollers 1011 by self-running by their own weight. After being unloaded, the articles are taken out to the article supply conveyor 2002 by the article take-out device 1003.

The transport conveyor 1002 is a drive roller conveyor arranged to connect the upstream end of the gravity roller conveyor 1001 arranged side by side, and is arranged downstream of the drive roller conveyor 72. At a branch point from the conveyor 1002 to the gravity roller conveyor 1001, rollers 1021 are provided by an air cylinder (not shown).
A branching device 1004 including a pair of endless chains 1041 and the like that swings so as to protrude and retract from the upper surface is provided. The article G is located upstream of the conveyor 1002.
A direction changing device (not shown) for changing the conveying direction by 90 ° in the horizontal direction is provided.

The article take-out device 1003 includes a plurality of rollers 1 which are moved up and down by an air cylinder (not shown).
031 and a pair of rail frames 1034 fixedly installed downstream of the rail frame 1032 with a plurality of rollers 1033.
And a stopper 1035 provided at the upstream end of the rail frame 1034, so that 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 article G which is self-propelled in the inclined direction is locked by the stopper 1035. Thus, when there is an article removal command, by operating the air cylinder,
The top 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 the roller 32 is higher than the upper surface of the roller 1011, the following articles G are locked at the rear end of the rail frame 1032, and the articles G loaded on the gravity roller conveyor 1001 are transferred to the article supply conveyor 2002. Can be taken out one by one.

A fluid shelf F composed of 26 gravity roller conveyors 1a, 1b,..., 1z arranged in a plurality of rows and a plurality of stages [5 rows × 2 stages (= 10) shown in FIG. Example of Another Example of Flow Shelf F Containing Gravity Roller Conveyor 1]
A description will be given of a method of diverging and packing the gravity roller conveyors 1001 arranged in a plurality of columns via the conveyor 1002. As shown in FIG. 11, articles of the same type are placed in the first column of the first row of the pallet P, as shown in FIG. For example, length 300
Product Ga with a height of 50 mm and a height of 50 mm is m steps (for example, 4 steps)
Stowed, articles of the same type in the second row, e.g.
An article Gu having a height of 0 mm and a height of 70 mm is placed in n stages (eg, 3
In the third row, articles of the same type, for example, articles Gc having a length of 300 mm and a height of 50 mm are stacked in o rows (for example, four levels), and articles of the same type in the fourth row, for example, length. Are stacked in p rows (for example, three rows) of articles Gv having a height of 300 mm and a height of 70 mm. 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 Ge from the gravity roller conveyor 1u. Are taken out from the gravity roller conveyor 1v, and are passed through the drive roller conveyor 72 and the transport conveyor 1002 to the respective branching devices 100. , The four articles Ga are loaded on the first gravity roller conveyor 1001 from the downstream side of the conveyor 1002, and the three articles Gu are loaded on the second gravity roller conveyor 1001 from the downstream side. The four articles Gc are aligned on the third gravity roller conveyor 1001 from the downstream side, and the fourth gravity roller conveyor 1 from the downstream side is aligned.
001, three articles Gv are packed and 5
Four articles Ge are loaded on the gravity roller conveyor 1001. 18 items G in stock
Are stacked on the pallet P moving downward by the article stacking device 2000 in an arrangement of 3 to 4 rows × 5 rows, as described later.

As shown in FIG. 12, articles G of different types, for example, an article Gw having a length of 390 mm and a height of 50 mm from the bottom, and having a length of 33, are arranged in the first column of the second row of the pallet P.
Article Gx of 0 mm and height of 110 mm, length of 390 m
In the order of articles Gz having a height of 70 mm and a height of 70 mm,
Row length 300mm and height 50mm or 100m
m of articles Gb, Gg, G from the bottom in the second row, for example.
In the order of q, from the bottom in the order of the articles Gc, Gh, Gr in the third column, and in the order of the articles Gd, Gi, Gs from the bottom in the fourth column,
When the articles Ge, Gj, and Gt are stacked in the fifth row from the bottom in order, 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, and one article from the gravity roller conveyor 1i Is an 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 item Gt from the gravity roller conveyor 1t. One article Gw is taken out from the trawler conveyor 1w, one article Gx is taken out from the gravity roller conveyer 1x, and one article Gz is taken out from the gravity roller conveyer 1z. Branching device 1004
The articles Gw, Gx, and Gz are arranged on the first gravity roller conveyor 1001 from the downstream side of the conveyor 1002 in the order of the articles Gb, Gg, and the like 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 articles Gc, Gh, Gr,
The fourth gravity roller conveyor 1001 from the downstream side
The articles Gd, Gi, and Gs are arranged on the fifth gravity roller conveyor 1001 from the downstream side in the order of the articles Gd, Gi, and Gs.
e, Gj, Gt 15
The individual articles G are stacked by the article stacking device 2000 on the pallet P moving downward in an arrangement of 3 rows × 5 rows.

The article stacking apparatus 2000 is provided with a pallet transport conveyor 20 for transporting the pallets P in the horizontal direction.
01, a plurality of rows (two rows) of article supply conveyors 2002, pallets P or P, which supply the articles G taken out of the gravity roller conveyor 1001 by the article take-out apparatus 1003 onto the pallets P or the articles G previously stacked. The speed at which the previously stacked articles G are moved downward can be changed in two stages, and the pallet P or the lifting apparatus 2003 and the lifting apparatus 2003 for lifting and lowering the previously stacked articles G are provided. A moving device 2004 or the like that moves along the supply direction of the articles G is provided, and the pallets P are horizontally and vertically moved with respect to the article supply conveyor 2002, so that the pallets P are packed on the plurality of rows of gravity roller conveyors 1001. The articles G are stacked on the pallet P. The article supply conveyor 2002 includes an extendable belt conveyor 2002a configured to be able to advance and retreat as indicated by a one-dot chain line or a two-dot chain line in FIG.
002b. In addition, the pallet transport conveyor 2001 includes a drive roller conveyor, an elevating device 2003
Is composed of a table lifter, and the table 2031
A drive roller 2032 is provided above. An article regulating plate 2033 is provided upright at an end of the table 2031. The moving device 2004 includes a rack 2041 and a pinion 2042, and moves the elevating device 2003 along the guide 2043 in the supply direction of the article G. Thus, when at least one article G among the plurality of articles G stacked in a column shape (longitudinal direction) is packed on the gravity roller conveyor 1001, the falling time of the stacked articles G is changed. The following articles G packed in the gravity roller conveyor 1001 arranged in a plurality of rows at intervals are taken out onto the article supply conveyor 2002, and the taken out articles G are pallets P moving downward or stacked in advance. It is supplied onto the attached articles G and stacked in a column shape, so that columns of a plurality of rows and a plurality of columns are formed on the pallet P. The following article G taken out from the gravity roller conveyor 1001
When is stacked, the downward movement of the stacked articles G is temporarily stopped. Further, when the following article G is supplied on the stacked article G, the stacked article G is moved downward at a low speed.

That is, as shown in FIG. 9, the pallet P mounted on the elevating device 2003 is
And the moving device 2004
As a result, the ends of the telescopic belt conveyor 2002a and the fixed belt conveyor 2002b of the article supply conveyor 2002 are moved to a position where the articles G forming the columns of the first row can be stacked. That is, four articles Ga stacked in the first row, three articles Gu stacked in the second row,
Four articles Gc stacked in the third row, three articles Gv stacked in the fourth row, 4 stacked in the fifth row
Since the lengths of the individual articles Ge are all 300 mm, the stacking position of the 18 articles G stacked in a column is determined based on the length (300 mm) of these articles G.

When the pallet P is moved to the loading start position, gravity roller conveyors 1001 arranged in a plurality of rows at intervals corresponding to the descending time of the loaded articles G.
The following article G, which has been packed in, is taken out by the article taking out device 1003 (for example, as described later,
The articles Ga, Gc, and Ge taken out after the articles Ga, Gc, and Ge with a height of 50 mm are 1.0 seconds later, and the articles Gu and Gv that are taken out after the articles Gu and Gv with a height of 70 mm are: 1.4 seconds later), packed on the article supply conveyor 2002,
When the detector (not shown) attached to the tip of No. 2 detects the arrival of the leading article G, the elevating device 2003 starts descending, and the articles G continuously supplied by the article supply conveyor 2002 move downward. The pallets P or the articles G previously stacked are supplied and stacked so as to be stacked (see the phantom line in FIG. 9), and FIG.
As shown in the figure, a plurality of articles G of the same type are stacked in a column shape (vertical direction). The lowering speed of the lifting / lowering device 2003 when the articles G are stacked on the pallet P is continuously lowered at a low speed (3 m / min or less) when the articles G having a low height are stacked. Products Ga, Gc, Ge with a height of 50 mm
50m is taken out of articles Ga, Gc and Ge following
m ÷ 3 m / min = article G having a height of 70 mm after 1.0 second
Articles Gu and Gv taken out after u and Gv are 70
mm ÷ 3 m / min = 1.4 seconds later, the article take-out device 100
3, the article G is taken out and packed in the article supply conveyor 2002, so that the succeeding article G is supplied in advance at the timing when the upper surface of the already stacked articles G and the upper surface of the article supply conveyor 2002 substantially coincide with each other. The articles G can be stacked in a column shape on the stacked articles G, and various articles G having different heights can be stacked on the pallet P without disturbing arrangement or the like.

When the final articles G forming the columns of the first row are stacked on the pallet P, the pallet P is raised to a position immediately below the article supply conveyor 2002 as shown in FIG. Fixed conveyor belt 2002 of article supply conveyor 2002 by moving device 2004
The tip of b is moved to a position where the articles G forming the columns of the second row to be stacked in the second to fifth columns can be stacked. That is, three articles Gb stacked in the second row,
Gg, Gq, three articles Gc to be stacked in the third row,
Gh, Gr, three articles Gd to be stacked in the fourth row,
Gi, Gs, three articles Ge stacked in the fifth row,
Since the lengths of Gj and Gt are all 300 mm, the stacking position of the twelve articles G to be stacked in a column is determined based on the length (300 mm) of these articles G, and the pallet P is a moving device. 300mm by 2004
Be moved. At the same time as the movement of the pallet P, the tip of the telescopic belt conveyor 2002a of the article supply conveyor 2002 is set at (390 mm-30) as shown by a dashed line in FIG.
0 mm =) 90 mm backward. That is,
Maximum length to be stacked in the second to fifth rows (300 m
m), an article Gw having a length of 390 mm and an article G having a length of 330 mm stacked in the first row based on the article G of FIG.
x, the length of the article Gz having a length of 390 mm, that is, the article Gw, Gz having a length of 390 mm, is determined based on the article Gw, Gz having a length of 390 mm.
002a is retracted by 90 mm with respect to the tip of the fixed belt conveyor 2002b, and three articles Gw, Gx, G
z can be stacked in a predetermined position.

When the pallet P is moved to the loading start position of the articles G forming the columns of the second row, and when the telescopic belt conveyor 2002a of the article supply conveyor 2002 is advanced and retracted to a predetermined position, the pallets are stacked. Subsequent articles G packed on the gravity roller conveyor 1001 arranged in a plurality of rows at intervals according to the descending time of the articles G are taken out by the article take-out device 1003 (for example, as described later, the height is reduced). 100mm article G
Article G taken out after g, Gh, Gi, Gj
q, Gr, Gs, and Gt have a height of 110 after 1.52 seconds.
The article Gz to be taken out after the article Gx of 1. mm is 1.
64 seconds later), when a detector (not shown) attached to the tip of the article supply conveyor 2002 detects the arrival of the leading article G, the lifting / lowering device 2003 starts descending and is continuously operated by the article supply conveyor 2002. 12 and FIG. 10, the articles G to be supplied are supplied and stacked so as to be stacked on the pallet P moving downward or the articles G stacked earlier (see the phantom line in FIG. 10). As shown in FIG. 13, a plurality of types of articles G are stacked in a column shape (vertical direction). When at least one article G among a plurality of articles G stacked in a column shape (vertical direction) is packed on the gravity roller conveyor 1001, the articles G packed on the gravity roller conveyor 1001 are transferred to the article G. The picked-up articles G are taken out on the supply conveyor 2002, and the picked-up articles G are supplied onto the pallet P moving downward or the articles G previously stacked, and are stacked in a column shape. For example, the articles Gw, Gb, Gc, Gd, and Ge that form the bottom of the column in the second row
Are loaded on the gravity roller conveyor 1001 (articles Gx, Gg, Gh, G forming the second stage from the bottom).
Regardless of whether i and Gj are loaded on the gravity roller conveyor 1001), the articles Gw, Gb, and G loaded on the gravity roller conveyor 1001)
c, Gd, and Ge are taken out on the article supply conveyor 2002 by the article take-out device 1003 and stacked on the pallet P. Further, when the following articles G taken out from the gravity roller conveyor 1001 are stacked, the downward movement of the stacked articles G is temporarily stopped. For example, in a state where the following articles Gx, Gg, Gh, Gi, and Gj are not loaded on the gravity roller conveyor 1001, the articles Gx, Gg, Gh, Gi, and Gj are firstly transferred from the gravity roller conveyor 1001.
When the taken out articles Gw, Gb, Gc, Gd, and Ge are stacked on the pallet P, the articles Gw, Gb, G
The pallet P on which c, Gd, and Ge are stacked temporarily stops moving downward, and the articles Gx, Gg, Gh, and G
Wait until i and Gj are loaded on the gravity roller conveyor 1001 and then follow the articles Gx, Gg, Gh,
After Gi and Gj are packed on the gravity roller conveyor 1001, they are taken out onto the article supply conveyor 2002 by the article take-out device 1003, and these articles G are detected by a detector (not shown) attached to the tip of the article supply conveyor 2002. Is detected, the elevating device 20
03 is to be resumed. Therefore, the article storage amount required for the gravity roller conveyor 1001 can be reduced, and articles G can be stacked in a small space. Note that when the articles G are stacked on the pallet P, the descending speed of the elevating device 2003 is such that when the articles G having a high height are to be stacked, the articles G having a high height are supplied first on the articles G preceding the article. , It descends at a low speed (3 m / min or less), and when a high article G is stacked on the preceding article G, it descends at a high speed (5 m / min or less). ) And the upper surface of the high articles G stacked in the above) and the article supply conveyor 2
002, so that the articles Gg, Gh, Gi,
Articles Gq, Gr, Gs, G taken out after Gj
t is 40 mm (the height of the article G which is higher than the preceding article G)
The amount of descent during the supply of (3m / min + 60mm)
After 5 m / min = 1.52 seconds, the article G having a height of 110 mm
The article Gz to be taken out subsequent to x is 40 mm (a descending amount while the high article G is supplied above the preceding article G) ÷ 3 m / min + 70 mm ÷ 5 m / min = 1.64 seconds later Since the articles are taken out and packed in the article supply conveyor 2002 by the article removal apparatus 1003, the succeeding article G is preceded at the timing when the upper surface of the already stacked articles G substantially coincides with the upper surface of the article supply conveyor 2002. A variety of articles G having different heights can be stacked on the pallet P without disturbing the arrangement and the like. Since the speed at which the attached article G is moved downward can be changed, when the succeeding article G is supplied above the preceding article G, the arrangement disturbance may be performed at a low speed. When a high article G is stacked on the preceding article G, the upper surface of the article G and the article supply conveyor 200 can be stacked.
Since the lower surface 2 is lowered at a high speed until the upper surface of the second product 2 substantially coincides with the upper surface (when the following articles G are not stacked), the articles G having a high height can be efficiently stacked.

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

As described above, the method for packing articles according to the present invention has been described together with the embodiment of the article packing equipment suitable for carrying out the method. However, the method for packing articles according to the present invention is not limited thereto. For example, the speed of moving the stacked articles G downward may be appropriately set according to the height dimension of the stacked articles G.

The width dimension of the article G may be different for each type (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, for example.

[0052]

According to the method for packing articles of the present invention as described above, the quantity of articles stored in the packing section (gravity roller conveyor) can be reduced and the space can be reduced. Articles can be stowed.

[Brief description of the drawings]

FIG. 1 is a perspective view partially showing an embodiment of an article packing apparatus.

FIG. 2 is an elevational view of main parts partially showing an embodiment of an article packing apparatus.

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 one embodiment of a load arranging section (gravity roller conveyor).

FIG. 6 is a side view partially showing an embodiment of a load arranging unit (gravity roller conveyor).

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

FIG. 8 is an explanatory diagram of an embodiment of a packing method using the packing equipment for articles.

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

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

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

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

FIG. 13 is an AA view of the state of the articles stacked on the pallet shown in FIG. 12;

[Explanation of symbols]

 1001 Loading unit (gravity roller conveyor) 2002 Article supply conveyor G Article

Claims (1)

(57) [Claims] 1. A method of stacking articles to be loaded with a succeeding article on an article moving downward, wherein at least one of a plurality of articles stacked in a column shape is loaded on a packing section. Once aligned, the intervals corresponding to the fall time of the article which is stowed removed Nisoroe article in the load alignment unit, attached stacked on top of the article in moving the retrieved articles downward, subsequent Goods to be packed in the packing section
In advance, remove it from the above
When the delivered goods are stacked, the stacked goods
A method of temporarily stopping the downward movement of the articles.