JP2613492B2 - Rack equipment with loading / unloading device and transport device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a plurality of upper and lower loading / unloading devices which are separately supported horizontally along a rack and a loading / unloading conveyor. The present invention relates to a rack facility including a transport device for transferring a load to and from a delivery device.

(Prior Art and Problems Thereof) The above-mentioned loading / unloading device in this type of rack equipment is suitable not for a high-rise large-size rack provided with a stacker crane-type loading / unloading device but for a low-rise small-size rack. However, in this type of conventional rack equipment, the above-mentioned storage and retrieval device is provided for each stage storage unit of the rack. That is,
For example, in a rack having four upper and lower load storage units, a loading / unloading device is arranged in four upper and lower stages corresponding to the load storage units in each stage. there were.

(Means for Solving the Problems) In order to solve the conventional problems as described above, the present invention is directed to a plurality of upper and lower loading / unloading devices which are separately supported horizontally along a rack. A plurality of upper and lower load transfer means corresponding to a plurality of load storage units vertically adjacent to the rack, and beside the home position of the loading / unloading device,
A plurality of upper and lower loading / unloading conveyors corresponding to the upper and lower multiple loading / unloading means are arranged, and a plurality of upper and lower loading / unloading loads are transferred to and from each of the upper and lower multiple loading / unloading conveyors. The present invention proposes a loading / unloading device and a rack facility with a transfer device, which are provided with a transfer device provided with transfer means.

(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1 and FIG. 2, reference numerals 1 and 2 denote racks which stand upright with a passage 3 therebetween, and are formed by vertically stacking four horizontal rows of load storage units 4 respectively. Passage 3 of these two racks 1 and 2
On the side, the first-stage load storage unit row 4A and the third-stage load storage unit row 4C
A pair of left and right guide rails 5 and 6 are attached at the level near the upper end of the
The storage and retrieval devices 7A and 7B are supported on the vehicle 6 so that they can run horizontally.

Reference numerals 8A to 8D denote four-stage upper and lower storage conveyors that are erected at one end of the rack 1 and correspond to the respective load storage unit rows 4A to 4D.
Reference numerals 9D to 9D denote four-stage upper and lower conveyors that are erected at one end of the rack 2 and correspond to the respective load storage unit rows 4A to 4D. Lower 2
The two-stage conveyors 8A, 8B, 9A, 9B are longer than the upper two-stage conveyors 8C, 8D, 9C, 9D, and the lower two-stage conveyors 8A, 8B, 9A, 9B. An upper / lower two-stage transfer device 10 connected to the upper and lower two-stage conveyors 8C, 8D, 9C, 9D connected side by side is provided.

The loading / unloading devices 7A and 7B have the same structure, and travel through a pair of left and right guide rails 5 or 6 driven by a driven wheel 12 and a driving wheel 13, as shown in FIGS. The traveling vehicle 14 that is supported as possible and this traveling vehicle
One lifting frame 15 supported only by the lifting and lowering within a certain range by 14 and one lifting driving means 16 for raising and lowering the lifting frame 15 between a rising limit level U and a falling limit level D
And a load transfer running fork 17 installed on the upper end support 15a of the lift frame 15, and a load transfer running fork 18 installed on the lower support 15b of the lift frame 15. It is configured.

The lifting drive means 16 includes a pair of front and rear left and right lateral rotation shafts 19a and 19b supported by a traveling vehicle 14, and the lifting frame 1
A pair of left and right cams 20 attached to both ends of both rotating shafts 19a and 19b so as to support the four corners of the upper end support base 15a projecting in the front and rear direction, and a traveling carriage 14 in a front and rear direction. A drive shaft 22 supported and interlocked with the motor 21;
Two sets of worm gear and worm wheel units 23a and 23a for linking the drive shaft 22 and the rotary shafts 19a and 19b in an interlocking manner.
23b, the motor 21 is operated to rotate the two sets of right and left two front and rear cams 180 by 180 degrees, thereby moving the lifting frame 15 from the upper limit level U to the lower limit level D,
Alternatively, it can be moved up and down (the figure shows a state in which the up and down frame 15 is at the ascending limit level U). As a driving means for moving the elevating frame 15 up and down, various types such as a rack gear type and a wire type in addition to the cam type are conceivable.

As shown in FIG. 2, the loading forks 17 and 18 of the loading / unloading device 7A correspond to the second-stage load storage unit row 4B and the first-stage load storage unit array 4A of the racks 1 and 2. The loading forks 17 and 18 of the loading / unloading device 7B correspond to the fourth-stage load storage unit row 4D and the first-stage load storage unit array 4C of the racks 1 and 2, respectively. As shown in FIG. 3, each of the running forks 17 and 18 for loading and unloading can move up and down between a pair of left and right load receiving plates 4a and 4b provided in each of the load storage sections 4 of the racks 1 and 2. Since the specific structure and the retracting drive means are conventionally well known, illustration and description are omitted.

The upper and lower two-stage transfer devices 10 and 11 have the same structure,
As shown in FIG. 5, a conventionally known monorail type transport train 25 which is guided by a guide rail 24 and runs by itself, a plurality of suspension belts 26, and a winding and feeding device for the suspension belts 26
An elevating frame 28 suspended from the transport train 25 via an elevating frame 27, and an upper support 28 of the elevating frame 28
The loading / unloading running fork 29 installed corresponding to the loading / unloading conveyor 8B, 9B or 8D, 9D in a, and the loading / unloading conveyor 8A, 9A on the lower support base 28b of the elevating frame 28.
Or, it is constituted by a load transfer running fork 30 installed corresponding to 8C and 9C.

In the rack facility configured as described above, which is capable of automatic loading and unloading, an operation when a loading operation is performed for one load storage unit 4 selected from the fourth stage load storage unit row 4D of the rack 1 or 2. The procedure will be described below.
The load W supported above is transferred onto the storage conveyor 8D by the load transfer running fork 29. At this time, a delivery fork made up of the moving movement of the running fork 29 while the lifting frame 28 is at the upper limit level, the lowering movement of the lifting frame 28 from the upper limit level to the lower limit level, and the backward movement of the running fork 29. King operation is performed. The load W on the storage conveyor 8D is conveyed by the storage conveyor 8D to a load transfer position between the storage and delivery device 7B.

Next, the running fork for loading / unloading the loading / unloading device 7B waiting at the home position HP indicated by the phantom line in FIG.
17 allows the load W on the storage conveyor 8D to be picked up on the upper support 15a of the elevating frame 15 of the storage and unloading device 7B. At this time, a load consisting of the advance movement of the running fork 17 in a state where the lifting frame 15 is at the lower limit level D, the upward movement of the lifting frame 15 from the lower limit level D to the upper limit level U, and the backward movement of the running fork 17. A receiving forking operation is performed.

The load W transferred to the loading / unloading device 7B is
Is moved along the guide rail 6 to be conveyed to a position corresponding to the predetermined load storage section 4 in the fourth-stage load storage section row 4D of the rack 1 or 2. If the entry / exit device 7B stops at a predetermined position, the entry / exit device
The load W on the upper support 15a of the lifting frame 15 of 7B
Is transferred and stored in a predetermined load storage section 4 in the fourth stage load storage section row 4D of the rack 1 or 2 by the load transfer running fork 17. At this time, the rack 1 of the running fork 17 in a state where the lifting frame 15 is at the upper limit level U.
Alternatively, a delivery forking operation including a forward movement to the second side, a downward movement of the lifting frame 15 from the upper limit level U to the lower limit level D, and a backward movement of the running fork 17 is performed. A pair of left and right cargo receiving plates in part 4
The left and right sides on the bottom are supported by 4a and 4b.

The lifting drive of the lifting frame 15 is performed by the lifting drive means 16 as described above. The lower load-loading running fork 18 moves up and down integrally with the upper load-loading running fork 17, but is not driven in and out.

The load storage unit 4 in the third stage load storage unit row 4C of the rack 1 or 2
When carrying out the warehousing work, the load W supported on the lower support base 28b of the transfer device 11 is
0, the goods are transferred onto the storage conveyor 8C, and the goods are loaded from the storage conveyor 8C onto the lower end support base 15b of the elevating frame 15 of the storage and unloading device 7B using the load transfer running fork 18. Let W take over. The load W on the loading / unloading device 7B can be transferred and stored in the load storage unit 4 in the third-stage load storage unit row 4C of the rack 1 or 2 using the load transfer running fork 18. .

Similarly, when carrying out the warehousing operation to the load storage unit 4 in the second-stage load storage unit row 4B of the rack 1 or 2, the load-loading running fork 29 and the storage conveyor 8 on the upper side of the transport device 10 are used.
B, and the loading fork 17 on the upper side of the loading / unloading device 7A is used, and the first-stage load storage unit row of the rack 1 or 2 is used.
When carrying out the warehousing operation to the load storage unit 4 in the 4A, the load transfer running fork 30, the conveyor 8A, and the load transfer running below the loading / unloading device 7A are provided below the transport device 10. A fork 18 is used.

When unloading the load W stored in the load storage section 4 of the rack 1 or 2 and carrying it out by the transport device 10 or 11, the loading and unloading devices 7A and 7B and the unloading conveyor are performed in the reverse order of the above-described loading operation. 9
A to 9D and the transfer devices 10 and 11 may be operated.

Although the basic method of use has been described above, in the rack equipment of the present invention configured as described above, the conveyors 10 or 11 simultaneously feed the upper and lower two-stage storage conveyors 8A, 8B or 8C, 8D. The load W is transferred and supplied, and the upper and lower two loads W are simultaneously loaded into the loading / unloading device 7A or 7B by the upper and lower two-stage load transfer running forks 17 and 18, and the first stage in the rack 1 or 2 Carrying-in work for the load storage section row 4A and the second-stage load storage section row 4B, or receiving work for the third-stage load storage section row 4C and the fourth-stage load storage section row 4D, sequentially and continuously. Can be done. Of course, the same applies to the unloading operation. Furthermore, it is also possible for one loading / unloading device 7A or 7B to simultaneously perform loading / unloading work on two vertically adjacent load storage units 4.

When the number of stages of the load storage unit 4 in the rack in the vertical direction is large, in order to reduce the number of loading / unloading devices, the vertical length of the lifting frame 15 in each loading / unloading device is increased, and It is also possible to arrange three or more running forks for transferring cargo at 15. In this case, also in the transfer device (the transfer devices 10 and 11 of the embodiment), the same number of load transfer running forks as the number of load transfer running forks provided on the elevating frame 15 are provided.

A running fork that moves up and down at the time of load transfer as a loading / unloading means of upper and lower multiple stages provided in a loading / unloading device (the loading / unloading device 7A, 7B of the embodiment) and a transport device (the transport device 10, 11 of the embodiment). However, it is also possible to use a load transfer means that does not require a lifting movement, such as a roller conveyor. In this case, the loading / unloading portion of the loading / unloading conveyor in a plurality of upper and lower stages in which the loading / unloading is performed between the loading / unloading unit and the transport device on the rack side is also performed by the loading / unloading unit. It is configured according to the system.

When using the conveyors 10 and 11 as in the embodiment, the free ends of the conveyors 8A to 8D and 9A to 9D for loading and unloading are aligned in the vertical direction, and the number of conveyors is one, and By moving the lifting frame 28 up and down, the upper and lower two-stage running forks 29 and 30 are moved into and out of the conveyors 8A and 8B for loading and unloading.
Alternatively, it can be used by switching between a state connected to 9A, 9B and a state connected to the conveyors 8C, 8D or 9C, 9D for loading and unloading. Further, it is also possible to provide a transport device dedicated to entry and a transport device dedicated to exit.

(Effects and Effects of the Invention) As described above, according to the rack equipment with the loading / unloading device and the transport device of the present invention, each of the loading and unloading devices of a plurality of upper and lower stages which are separately supported horizontally along the rack, respectively. Since a plurality of upper and lower stages of load transfer means corresponding to a plurality of upper and lower stages of load storage units adjacent to the rack are provided, a load transfer unit is provided for each stage load storage unit row on the rack side as in the prior art. The number of the storage and retrieval devices is at least halved as compared with the case where the storage and retrieval device provided with is provided.

Besides, beside the home position of the above-mentioned storage and retrieval device,
A plurality of upper and lower loading / unloading conveyors corresponding to the upper and lower multiple loading / unloading means are arranged, and a plurality of upper and lower loading / unloading loads are transferred to and from each of the upper and lower multiple loading / unloading conveyors. Since a transfer device equipped with transfer means is provided in parallel, a plurality of upper and lower loads simultaneously transferred to and from the single loading / unloading device are simultaneously transferred to one transfer device with good timing. I can do it. Therefore, compared to the case where the same number of transport devices as the number of loads handled simultaneously by one of the loading / unloading devices must be used, the number of transport devices is not only at least halved, but also A plurality of loads can be efficiently conveyed to and from the loading / unloading device without causing a loss time, which is useful for shortening the cycle time of the entire operation. Of course, it goes without saying that the structure of the entire rack facility is extremely simple, and a significant cost reduction can be achieved.

[Brief description of the drawings]

1 is a schematic plan view of the whole, FIG. 2 is a vertical side view of the same, FIG. 3 is a vertical side view of a loading / unloading device, FIG. 4 is a vertical front view of the same, FIG. It is a partial vertical side view which shows a conveyor. 1,2 ... Rack, 4 ... Load storage unit, 4A ~ 4D ... Exceptional load storage unit row, 5,6 ... Guide rail for loading / unloading device, 7A, 7B ...
… In / out device, 8A-8D …… Conveyor for storage, 9A-9D…
Outgoing conveyors, 10, 11, ... two-stage upper and lower conveyors, 14 ...
… Travel trolley, 15,28 …… Elevating frame, 16 …… Elevating drive means, 17,18,29,30 …… Loading running fork, 2
0: cam, 21: motor, 24: guide rail for transfer device, 25: monorail transfer train, 26: suspension belt, 27: winding / unwinding device.

Claims (1)

(57) [Claims] 1. A plurality of upper and lower loading / unloading devices, each of which is supported horizontally so as to be able to travel horizontally along a rack, includes a plurality of loading / unloading units corresponding to a plurality of loading / unloading units vertically adjacent to the rack. A transfer means is provided, and a plurality of upper and lower loading / unloading conveyors corresponding to the plurality of upper and lower loading / unloading means are provided beside the home position of the loading / unloading device. Loading and unloading device and rack equipment with a transport device, which are provided with a transport device having a plurality of upper and lower load transfer means for transferring a load to and from each of the conveyors.