JP2707847B2 - Warehouse equipment with conveyor shelves - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a warehouse facility having a conveyor shelf which is used to store a load directly or via a pallet and to take it out when necessary.

[0002]

2. Description of the Related Art Conventionally, as this type of conveyor shelf, for example, a structure as disclosed in Japanese Utility Model Laid-Open No. 1-112008 has been provided. In this conventional structure, a transport device composed of a pair of left and right conveyors is arranged on a shelf frame in a plurality of upper and lower stages and a plurality of left and right rows with the transport direction being horizontal.

According to this conventional type, a load supplied to an upstream end of a transport path by a forklift truck is sequentially fed,
And it is located at the downstream end by contacting the stopper.
The load at the downstream end is taken out by a forklift truck.

In recent years, in order to completely automate the loading and unloading of loads to and from conveyor shelves, a structure has been provided in which loads are replaced by a loading and unloading device instead of a forklift truck. That is, as shown in FIG.
Outside the end of the group transport path, there is provided an access device 121 that can travel on a fixed path orthogonal to the transport path of the conveyor device 120.

[0005] The loading / unloading device 121 is a
2 and a pair of columns 12 erected from the traveling body 122.
3 and a lifting frame 124 supported and guided by these columns 123
And a loading / unloading tool 125 provided on the lifting frame 124 so as to be able to move in and out in the horizontal direction. Loads are loaded and unloaded to and from the intended conveyor device 120 by a combination of a running motion of the traveling machine body 122, a lifting and lowering motion of the lifting frame 124, and a horizontal moving of the loading and unloading device 125.

[0006]

According to the above-mentioned conventional type, the conveyor devices 120 located at the ends of a plurality of right and left rows are provided.
When the loading / unloading tool 125 is opposed to the
Of the conveyor shelf 126 project beyond the outer surface 127 of the conveyor shelf 126, thereby creating a dead space 128 outside the outer surface 127.

A feature of the present invention is to provide a warehouse facility having a conveyor shelf which can be constructed so as to be completely automated by using a loading / unloading device and which does not generate a dead space.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, a warehouse facility having a conveyor shelf according to the present invention is arranged such that conveyor devices are arranged on a shelf frame in a plurality of upper and lower stages and in a plurality of rows on the left and right sides. Outside the end of the conveyor device group on the side of the transfer path, provided with a take-out device that can run on a fixed path orthogonal to the transfer path of the conveyor device, the conveyor shelves on the side of the take-out device At the end and the position of the end in the left-right parallel direction of the conveyor device group , a plurality of
A notch corresponding to the conveyor device is provided, and in this notch,
A relay cart having a relay conveyor device that is movable along the fixed path and that is selectively connectable to a plurality of conveyor devices is provided .
And the relay trolley that has stopped
It is configured to be able to freely transfer loads to and from the conveyor device group .

[0009]

According to the structure of the present invention, the load reaching the end of the conveyor device can be taken out of the conveyor shelf by the operation of the loading / unloading device. At that time, the load on the conveyor device located at the end in the left and right parallel direction is transferred to the relay conveyor device on the relay truck, and by running the relay truck toward the center part in the parallel direction as necessary, It can be removed from the relay conveyor device by the operation of the access device.

[0010] Accordingly, the access device can be stopped without projecting its longitudinal end from the outer surface of the conveyor shelf, and the resulting shortage can be absorbed by the running of the relay truck.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 1 to 3, reference numeral 1 denotes a shelf frame which connects a plurality of left and right front supports 2, a plurality of left and right rear supports 3, a front cross member 4 connecting the front supports 2, and a connection between the rear supports 3. And a front and rear member 6 for connecting the front support 2 and the rear support 3 to each other. Posts 2 and 3 of this shelf frame 1
A conveyor device 12 composed of a pair of left and right conveyors 10 and 11 has a conveying direction 13 in a plurality of storage sections 7 formed in a plurality of rows in the left and right direction and in a plurality of stages in the vertical direction, which are defined between the members 4 to 6. It is arranged horizontally as the depth direction.

That is, as shown in FIGS. 2, 4 to 7,
The conveyor frame 15 in one conveyor 10 is
A pair of left and right side plates 16 and a bottom plate 17 connecting the lower ends of both side plates 16 are formed in a U-shaped cross section. A shaft hole 18 for mounting a roller (described later) is provided at an upper portion of the side plate 16, and a transmission device (described later) is provided at an intermediate portion.
A plurality of bolt holes 19 for fixing the guide rails are formed at predetermined pitches in the longitudinal direction, and a bolt hole 20 for fixing a guide rail (to be described later) is formed below one of the side plates 16. I have.

The conveyor frame 1 thus formed
5 is detachably fixed to the shelf frame 1. For this purpose, a bolt hole 21 is formed in the bottom plate 17, a nut 22 corresponding to the bolt hole 21 is fixed on the bottom plate 17 in the conveyor frame 15, and a through hole 23 formed in the cross members 4, 5 is formed. A bolt 24 passed from below is screwed into the nut 22 via a bolt hole 21.

The resin roller 25 has a roller shaft 26
Is attached to the conveyor frame 15 by passing through the shaft hole 18, and becomes freely rotatable around the roller axis 27. A guide rail 28 is provided at one corner at the bottom of the conveyor frame 15 over its entire length. The guide rail 28 has a dovetail groove 29 on the outside and a pair of upper and lower guides 30 and 31 on the inside. Having. A plate-shaped nut 32 is slidably fitted into the dovetail portion 29, and a bolt 33 passed through the bolt hole 20 from outside is inserted into the nut 32.
The guide rail 28 can be fixed to the conveyor frame 15 by being screwed into and tightened.

In the chain 35, which is an example of a driving body, its upper path is supported and guided by the upper guide section 30, and its lower path is supported and guided by the lower guide section 31. The chain 35 is stretched between a driving sprocket 36 and a driven sprocket 37 via a guide sprocket 38 or the like, and connects the driving sprocket 36 to a motor 39 in an interlocked manner.
The drive device 40 constantly linked to the transmission (to be described later) is constituted by 35 to 39 described above. Reference numeral 41 denotes a transport path.
A load 42 is handled via a pallet 43.

In the conveyor frame 15 between the rollers 25 and the guide rails 28, the chain 35 is provided.
Gearing 45 that can be connected to and separated from rollers 25
Is provided. That is, the resin support frame 46 can be freely applied to the inner surface of the one side plate 16 and the guide rail 28.
A support plate 47 which can be fitted into the upper part of the support plate 47, a pair of cover plate portions 48 continuously connected from the front and rear ends of the one support plate 47 to the other, and connects the lower ends of these cover plate portions 48 to each other. The receiving plate 49 is formed by an extending receiving plate 49 and the other supporting plate 50 which is integrated with the other end of the receiving plate 49 and which can be applied to the inner surface of the other side plate.

Here, the receiving plate 49 can be mounted on the bottom plate 17, and a main body 52 of a cylinder device 51, which is an operating device using fluid, is integrally formed on an upper portion of the receiving plate 49, and is formed on a lower portion thereof. Is provided with a pipe holding section 53.

A bearing hole 54 is formed at the center of the one support plate 47, and a loose fitting hole 55 is formed in the other support plate 50 in opposition thereto. A nut 56 is fixed to the support plate 47 above the bearing hole 54 so as to be embedded therein.
The one support plate 47 is fixed to the one side plate 16 by screwing the nut 7 to the nut 56 and tightening it.

A nut 58 is also fixed to the other supporting plate 50 below the loose fitting hole 55 so as to be embedded therein, and a bolt 59 passed through the bolt hole 19 from the outside is screwed into the nut 58 and tightened. The other support plate 50 is fixed to the other side plate 16.

The cylinder device 51 is constructed by fitting an expandable / contractible rubber body 60 to the main body 52 from above, and then fixing it with a band 61 or the like. The support shaft 62 along the roller shaft center 27 can vertically swing within a certain range by fitting one end into the bearing hole portion 54 and the other end into the loose fitting hole portion 55.

The support shaft 62 has a sprocket 63 which is an example of a passive wheel and is always meshed with the chain 35.
The transmission roller 64 is externally fitted to the boss portion of the sprocket 63 so that the two can be integrally rotated. The transmission roller 64 is made of urethane rubber, and the outer periphery thereof can freely contact and separate from the lower part of the outer periphery of the roller 25.

The cylinder rubber receiver 65 attached to the other end of the support shaft 62 is brought into contact with the rubber body 60 from above, so that the transmission roller 64 comes into contact with the roller 25 from below by the operation of the cylinder device 51. It is configured to move away.

The pairs of the above-mentioned rollers 25 and the transmission 45 are disposed alternately, and idle rollers 66 are disposed between the rollers 25 via roller shafts 67. The conveyor frame 70 of the other conveyor 11 is shown in FIG.
As shown in FIG. 5, a pair of left and right side plates 71 and a bottom plate 72 connecting the lower ends of both side plates 71 are formed in a U-shaped cross section. A shaft hole 73 is formed in an upper part of the side plate 71,
The roller shaft 75 to which the idle roller 74 is attached has a double shaft hole 73.
Passed through.

The conveyor frame 7 thus formed
0 is detachably fixed to the shelf frame 1. For this purpose, a bolt hole 76 is formed in the bottom plate 72, and a nut 77 corresponding to the bolt hole 76 is fixed on the bottom plate 72 in the conveyor frame 70, and is inserted into a through hole 78 formed in the cross members 4,5. A bolt 79 passed from below is screwed into the nut 77 through a bolt hole 76.

The roller 25 and the idle rollers 66 and 74 have ring-shaped flanges 34 and 6 at intermediate positions thereof.
8,80 are attached. These flanges 34,
Reference numerals 68 and 80 have peripheral portions formed on the outward inclined portions.

As described above, the pair of conveyors 10, 11
As shown in FIG. 7, for example, as shown in FIG. 7, a plurality of groups (a plurality of groups) arranged in a predetermined arrangement are arranged as a group, and a plurality of groups, in the embodiment, eight groups A, B... The transmission 45 can be connected and separated for each of the groups A to H.

That is, a supply / discharge hose 81 in which the cylinder devices 51 are connected in series is provided for each group A, B,... H, and these supply / discharge hoses 81 are connected to the air supply device 83 via electromagnetic valves 82, respectively. It communicates with a common air supply hose 84 and can be shut off.

At the downstream end of each of the groups A, B... H, a photoelectric switch 85 as an example of a presence detector is provided. Here, in the two groups adjacent in the transport direction 13, when the optoelectronic switch 85 of the upstream group is detected and the optoelectronic switch 85 of the downstream group is not detected, the transmission devices 45 of both groups are simultaneously connected (supplied). (Communication between the air hose 84 and the supply / discharge hose 81).

When the optoelectronic switches 85 of both groups are simultaneously detected or not detected simultaneously, the transmission devices 45 of both groups are configured to be simultaneously separated (the supply hose 84 and the supply / discharge hose 81 are cut off). I have.

For this purpose, each solenoid valve 82 is incorporated in a respective control unit 86. Also, only the group A at the most downstream position is configured so that the transmission device 45 moves separately when the optoelectronic switch 85 detects and moves. Reference numeral 87 denotes a stopper. Thus, the conveyor shelf 88 is configured.

As shown in FIGS. 1 and 2, a storage side loading / unloading device 90 is provided outside the upstream end of the conveyor shelf 88 so as to freely transfer the load 42 to and from each of the conveyor devices 12. The storage side loading / unloading device 90 includes a floor rail 91.
Body 9 which is supported and guided by a ceiling rail 92 and is able to reciprocate on a fixed path 93 orthogonal to the transfer path 41.
4, an elevating frame 96 guided by a pair of columns 95 of the traveling machine body 94, an insertion / removal tool (fork) 97 provided on the elevating frame 96 so as to be able to move in and out in the horizontal direction.

On the side of the fixed path 93, there is provided a loading-side handling device 98 which is capable of transferring the load 42 by the loading-side loading / unloading device 90. Outside the downstream end of the conveyor shelf 88, there is provided a storage side loading / unloading device 100 capable of transferring the load 42 to and from each of the conveyor devices 12. The storage side entrance / exit device 100 has the same or almost the same configuration as the entrance side entrance / exit device 90, and the same reference numerals are given to the respective units, and the description thereof will be omitted. On the side of the fixed path 93, there is provided a cargo handling device 101 on the delivery side, which can freely transfer the load 42 by the delivery side loading / unloading device 100.

At the end of the conveyor shelf 88 on the side of the loading / unloading device 100 and at both ends of the group of conveyor devices 12 in the left-right direction, cutouts 105 are provided. In addition, a relay truck 106 that is movable along the fixed path 93 is provided in the notch 105.

That is, the trolley 106 is supported and guided by rails 107 provided on the floor via wheels 108, and its movement is reciprocated by a drive unit 109. The relay truck 106 is provided with a plurality of (in the embodiment, two) relay conveyor devices 110 that can be selectively connected to a plurality of (in the embodiment, two) conveyor devices 12 in a reciprocating manner in a plurality of upper and lower stages.

Next, a description will be given of the entry and exit operations in the above embodiment. In FIG. 1, the load 42 (pallet 4) which is conveyed by a storage device or the like and reaches the final handling device 98.
3) is transferred to the conveyor shelf 88 by the operation of the storage side loading / unloading device 90.

That is, the load 42 is received by the storage-side loading / unloading device 90 by the projecting movement of the loading / unloading tool 97, the raising / lowering movement of the lifting / lowering frame 96, and the retreating movement of the loading / unloading tool 97 in the storage-side loading / unloading device 90. Then, the traveling motion of the traveling machine body 94, the elevation motion of the elevating frame 96, the protruding motion of the insertion / removal device 97, the elevating frame 9
6 and the retracting device 97 move the load 42.
Is the intended conveyor device 12 on the conveyor shelf 88
Warehousing at the upstream end.

The loads 42 stored on the conveyor shelf 88 are sequentially sent downstream (described later). And conveyor shelf 88
The inner load 42 is taken out from the downstream end by the unloading side loading / unloading device 100 and then transferred to the load handling device 101.

At this time, the conveyor device 1 of the conveyor shelf 88
2, the loads 42 on the conveyor device 12 located in two rows on the end side in the left-right parallel direction are transferred to the relay conveyor device 110 on the relay truck 106. Then, the relay bogie 106, which has received the load 42 from the conveyor device 12 at the end in the left-right parallel direction, travels toward the central portion in the parallel direction and is opposed to the delivery side loading / unloading device 100.
The load 42 is taken out of the relay conveyor device 110 by the operation of “0”.

The relay truck 106 which has received the load 42 from the conveyor device 12 closer to the central portion from the end in the left-right parallel direction is opposed to the delivery side loading / unloading device 100 without traveling, and By operation, the load 42 is taken out from the relay conveyor device 110.

Accordingly, the access device can be stopped without projecting its longitudinal end from the outer surface of the conveyor shelf, and the resulting shortage can be absorbed by the running of the relay truck.

Next, a description will be given of the operation of sequentially feeding the load 42 on the conveyor shelf 88 in the above embodiment. 4 to 6 show that the electromagnetic valve 82 is switched to connect the air supply hose 84 to the air supply / discharge hose 81, and the support shaft 61 is swung upward by expansion of the cylinder device 51 by air pressure, and the transmission roller 63 is supported. Roller 25 from below.

At this time, the chain 35 is driven by the motor 39.
Is driven at all times, so that the sprocket 62 engaged with the chain 35 rotates around the support shaft 61. Further, the transmission roller 63 is forcibly rotating the group of rollers 25 by being in contact with the lower part of the outer periphery of the roller 25.
As a result, the pallet 43 on the transport path 41 is moved by the rollers 25 of the two conveyors 10 and 11 and the idle rollers 66 and 7.
4 and is conveyed on the conveyance path 41 while receiving the conveyance force due to the forced rotation of the group of rollers 25. At this time, the non-driven idle rollers 65 and 74 perform the following rotation.

Further, the pallet 43 includes one of the conveyors 1.
0 and the other conveyor 11
Because it is located between the flange 80 in
When trying to shift sideways during transport, these flanges 3
It is received by 4,68,80 and never falls off.

The conveyor device 12 composed of the pair of conveyors 10 and 11 basically transports the pallet 43 (load 42) as described above. In practice, however, the photoelectric switch 85 detects the pallet 43. The conveyance control is performed by the control unit based on the non-detection.

That is, when the transport path 41 is empty, the group H at the upstream end is
When the pallet 43 is lifted up, the photoelectric switch 85 of the group H is detected, but the photoelectric switch 85 of the group G is detected.
Is not detected, the transmission unit 45 is connected and moved by the operation of the control unit 86 and the solenoid valve 82, and the rollers 25 of the groups H and G are forcibly rotated.
3 from group H to group G.

When the pallet 43 enters the group G, the optoelectronic switch 85 of this group G is detected, but the optoelectronic switch 85 of group F is not detected. Therefore, the transmission devices 45 of the groups G and F are connected and operated. , Palette 43
From the group G to the group F.

The pallets 43 successively transported to the downstream side in this way come into contact with the stopper 87 and stop, and are stored in the group A. Then, when the photoelectric switch 85 detects the pallet 43, the transmission device 45 of the group A separates and moves.

The second pallet 43 is conveyed in the same manner, and is brought into contact with the pallet 43 of the group A and stored in the group B. At this time, the group B is detected and moved, but the group A is also detected and moved, so that the transmission 45 of the group B also moves separately.

It is assumed that the pallets 43 are stored in all the groups A to H by such an operation, and all the transmissions 45 are moved separately. In this state, the delivery side loading / unloading device 10
When the pallet 43 of the group A is taken out by 0, the photoelectronic switch 85 of the group A is not detected, so that the transmissions 45 of the groups A and B are connected and moved, and the pallet 43 of the group B is conveyed to the group A. I do.

Then, the photoelectric switch 85 of the group B
Are not detected, the transmissions 45 of the groups B and C
Is connected, and the pallet 43 of the group C is conveyed to the group B as shown in FIG. By repeating such an operation, the pallet 43 can be moved forward.

In the above-described embodiment, the conveyor shelf 88 having the storage side entrance / exit device 90 and the exit side entrance / exit device 100 has been described. In this case, the relay truck 106 facing the storage side entrance / exit device 90 may be omitted.

In the above embodiment, the idle roller 66 may be replaced by the roller 25 paired with the transmission 45 or the like. In addition, the type having a pair of conveyors 10 and 11 having rollers 25, 66 and 74, respectively, is shown, but this may be a conveyor device 12 having one roller 25.

In the above-described embodiment, the type in which the transmission device 45 is stopped in the groups A to H by the separating motion is shown, but this may be a type in which brake rollers are disposed in each of the groups A to H. Further, while the conveyor device 12 of the type in which the feed is driven in sequence is shown, it may be a simple feed type or a non-driven type.

[0054]

According to the present invention having the above-described structure, a load reaching the end of the conveyor device can be taken out of the conveyor shelf by operating the loading / unloading device. At that time, the load on the conveyor device located at the end in the left and right parallel direction is transferred to the relay conveyor device on the relay truck, and by running the relay truck toward the center part in the parallel direction as necessary, It can be removed from the relay conveyor device by the operation of the access device.

Therefore, the loading / unloading device can be stopped without projecting its longitudinal end from the outer surface of the conveyor shelf, and the resulting shortage can be absorbed by the traveling of the relay truck. In this manner, a configuration in which dead space does not occur can be achieved even though the type is completely automated by using the loading / unloading device.

[Brief description of the drawings]

FIG. 1 is an overall schematic plan view showing an embodiment of the present invention.

FIG. 2 is a schematic side view of the whole.

FIG. 3 is a front view of the main part.

FIG. 4 is a partially cutaway front view of the driving side conveyor device.

FIG. 5 is a partially cutaway front view of the driven side conveyor device.

FIG. 6 is a partially cutaway side view of the drive-side conveyor device.

FIG. 7 is a schematic side view showing an operation state of the conveyor device.

FIG. 8 is a schematic plan view of the whole, showing a conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 shelf frame 12 conveyor device 13 transport direction 25 roller 40 drive device 41 transport route 42 load 43 pallet 45 transmission device 51 cylinder device 62 support shaft 63 sprocket 64 transmission roller 85 photoelectric switch 88 conveyor shelf 90 storage side loading / unloading device 93 constant path Traveling body 97 Loading / unloading tool 98 Handling device 100 Unloading side loading / unloading device 101 Handling device 105 Deletion section 106 Relay truck 110 Relay conveyor device

Claims (1)

(57) [Claims] 1. A conveyor shelf is constructed by arranging conveyor devices on a shelf frame in a plurality of upper and lower stages and in a plurality of left and right rows, and the conveyor device is transported to the outside of an end of the conveyor device group on the transport path side. The path is provided with a loading / unloading device that can travel on a fixed orthogonal path, and at the end of the conveyor shelf at the loading / unloading device side and at the position of the end of the conveyor device group in the left-right parallel direction , in the left-right parallel direction. A plurality of notch portions corresponding to the plurality of conveyor devices are provided, and the notch portion is provided with a relay cart having a relay conveyor device that is movable along the fixed path and that can be selectively connected to the plurality of conveyor devices. , Access device
Is a relay truck stopped near the center in the left and right parallel direction,
Load the conveyor device group with no notch
Warehouse equipment with conveyor shelves, characterized in that they can be delivered freely .