JPH07137806A - Warehousing-delivery conveyor device - Google Patents

Abstract

PURPOSE:To efficiently perform the replenishing work of a load to a load storage container, already stored in a shelf, without taking the load storage container out of the shelf. CONSTITUTION:A transfer means 10 and a load replenishing converyor means 11 are provided on an elevating pallet 9. The transfer means 10 transfers a load storage container 17 between a load receiving part 19 in a shelf 3 and the elevating pallet 9, and the load replenishing conveyor means 11 supports a load 18 to be replenished and conveys the load 18 out in the container transfer direction of the transfer means 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hoisting platform that can selectively correspond to each stage cargo receiving section of a shelf, and a load storage container provided on the hoisting platform and corresponding to the cargo receiving section. The present invention relates to a transfer device for loading and unloading, which is provided with a transfer means for mounting.

[0002]

2. Description of the Related Art For loading and unloading work in an automated warehouse using this type of loading and unloading transport device, the loading and unloading transport device receives a load storage container received on a hoisting platform by a transfer means at a home position. It is carried out by moving the warehousing / transporting device and raising / lowering the loading platform to the warehousing target position, and then transferring and unloading it to the warehousing target receiving section of the shelf by the transfer means. The load storage container received from the inside of the department on the lifting platform by the transfer means is transported to the home position by traveling of the loading / unloading transport device and lifting of the lifting platform.
It is done by the method of unloading the load storage container by transfer means, but in an automatic warehouse that uses such a load storage container, the load is loaded on a specific container among the load storage containers already stored on the shelf. May need to be replenished.

In such a case, in the conventional apparatus, the load storage container to be replenished with a load is transferred to the load replenishment work place such as the home position once by the transfer device for loading and unloading, as in the above-described delivery operation. Then, it was necessary to return to the original shelf position (load receiving portion) by carrying out the loading operation described above again after unloading to a predetermined place and replenishing the load.

[0004]

SUMMARY OF THE INVENTION According to the above-described working method, for loading and unloading between a load receiving portion of a shelf on which a load storage container to be replenished is supported and a load replenishing work place such as a home position. Since the transport device has to be reciprocated twice, there is a drawback that it takes too much time and running cost.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, the features of which will be described with reference numerals of embodiments described later in parentheses. As shown, the lifting platform (9) that can selectively correspond to each stage loading section (19) of the shelf (3) and the corresponding loading section (19) provided on the lifting platform (9). A loading / unloading transfer device (1) comprising a transfer means (10) for transferring a load storage container (17) between them, and a load replenishment transfer means (11). 1
1) is characterized in that it is provided on the lifting platform (9), supports the load (18) to be replenished, and carries out the load (18) in the container transfer direction of the transfer means (10).

The load replenishing transfer means (11) can be arranged at a level for supporting the load storage container (17) transferred by the transfer means (10), or by the transfer means (10). Load storage container to be transferred
It can also be arranged above the transfer route of (17).

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 to 4, reference numeral 1 denotes a monorail electric train type loading / unloading transport device. A guide rail 2 for guiding 1 is installed above a work passage along a shelf 3 (generally, two shelves are juxtaposed) installed on the ground. This storage / transportation device 1
Is a drive wheel 5 for traveling connected to the motor 4, a winding / unwinding means 7 driven by the motor 6, and a plurality of belts 8 wound / unwound by the winding / unwinding means 7 so as to be lifted and lowered. Loading platform 9 and transfer means 10 provided on the lifting platform 9.
And a transport means 11 for replenishing the load.

The transfer means 10 includes a lateral moving body 12 which is movable in the container moving direction along the container moving path orthogonal to the traveling direction of the warehousing / transporting device 1, and a moving direction of the lateral moving body 12. At both ends, a pair of pushers 13a and 13b rotatably supported between a vertical standing posture and a container pushing / pulling posture in which the container 12 is laid down to the container transfer path side, and an intermediate lateral for moving the transverse moving body 12 back and forth. It is composed of a moving body 14 and a fixed guide rail 15. The mechanism including the lateral moving body 12, the intermediate lateral moving body 14, and the fixed guide rail 15 is the same as the mechanism of the conventional running fork.
When the intermediate lateral moving body 14 is moved forward with respect to the intermediate lateral moving body 14, the lateral moving body 12 moves forward with respect to the intermediate lateral moving body 14,
As shown in FIGS. 1A and 2, No. 2 reaches the advance limit position where the entire unit completely advances from the lifting platform 9. Further, when the intermediate lateral moving body 14 is moved backward with respect to the fixed guide rail 15, the lateral moving body 12 is moved backward with respect to the intermediate horizontal moving body 14, and the horizontal moving body 12 moves up and down as shown in FIGS. 1B and 3. It returns to the retracted limit position on the loading platform 9.

The load replenishing transfer means 11 is composed of a drive belt conveyor 16 installed so as to form the bottom surface of the container transfer path on the elevating and lowering platform 9, and the load 18 to be replenished in the load storage container 17 is As shown in FIGS. 1B and 3, the transfer means 10 conveys the container in the same direction as the container transfer direction. Of course, the drive belt conveyor 16 is used for the lifting platform 9
It is provided over the entire length in the upper container transfer direction.

The shelf 3 is provided with a large number of load receiving portions 19 which are divided into a traveling direction of the loading / unloading transfer device 1 and a lifting direction of the lifting / lowering platform 9. Each load receiving portion 19 is composed of a horizontal support plate 20 on which the load storage container 17 can slide in the container transfer direction. In the example shown in FIGS. 2 and 3, the plurality of load receiving portions 19 are arranged side by side on the horizontal support plate 20 without a partition, but a partition can be provided for each load receiving portion 19 or each load receiving portion 19 can be provided. It is also possible to independently dispose the horizontal support plate 20 supported by the shelf columns.

When loading the cargo storage container 17 into the shelf 3,
As shown in phantom lines in FIGS. 1A and 2, the load storage container 17 is at a fixed position of the lifting platform 9, that is, the drive belt conveyor 1.
6, the pair of pushers 13a, 13 of the transfer means 10
The load storage container 17 placed at a position sandwiched between b is transported to a position just beside the loading target load receiving portion 19 of the shelf 3 by the traveling of the loading / unloading transport device 1 and the vertical movement of the lifting platform 9. At this time, the container support level of the drive belt conveyor 16 and the container support level of the horizontal support plate 20 in the load receiving portion 19 are the same. On the other hand, the pair of pushers 13a and 13b in the transfer means 10 lie down in a container pushing / pulling posture to sandwich the load storage container 17 on the drive belt conveyor 16.

In this state, the lateral moving body 12 of the transfer means 10 is
As shown by the solid lines in FIGS. 1A and 2, respectively, the load storage container 17 on the drive belt conveyor 16 is advanced to the advance limit position and sandwiched by the pair of pushers 13a and 13b.
Back with pusher 13a on the back side,
It is carried out from the top of the lifting platform 9 to the fixed position of the cargo receiving part 19 to be stored. At this time, the drive belt conveyor 16 may also be driven in the container unloading direction at the same speed as the moving speed of the lateral moving body 12, or when the load storage container 17 can smoothly slide on the conveyor belt, the drive belt conveyor 16 Need not drive. When the load storage container 17 is carried into the load receiving portion 19 of the shelf 3, the pair of pushers 13a and 13b are switched to the vertical standing posture, and then the lateral moving body 12 is moved backward to the retracted limit position to lift and lower the load platform 9 Just turn it back on.

When the load storage container 17 is to be unloaded from the shelf 3, the loading / unloading carrier 9 is moved and the lifting / lowering platform 9 is moved up and down to a position just beside the loading / unloading target receiving portion 19 of the shelf 3. To move. At this time, the container support level of the drive belt conveyor 16 and the container support level of the horizontal support plate 20 in the load receiving portion 19 are the same. Next, with the pair of pushers 13a and 13b in the transfer means 10 in the vertical standing posture, the lateral moving body 12 is moved from the retracted limit position to the advanced limit position, and the load storage container 1 in the cargo receiving target receiving portion 19 is delivered.
The lateral position of 7 is moved.

When the lateral moving body 12 reaches the advance limit position, the pair of pushers 13a, 13b are laid down from the vertical standing posture to switch to the container pushing / pulling posture, and the pair of pushers 13a, 13b are taken out as the load storage container. Position before and after 17. Then, by moving the lateral moving body 12 backward to the backward limit position, the pusher 13b on the rear side is moved.
Thus, the shipping target load storage container 17 is pushed backward and the load storage container 17 is retracted to a fixed position on the lifting platform 9.
At this time, the drive belt conveyor 16 may also be driven in the container retracting direction at the same speed as the moving speed of the lateral moving body 12, or when the load storage container 17 can slide smoothly on the conveyor belt, the drive belt conveyor 16 Need not drive.

At the home position of the warehousing / transporting apparatus 1, the warehousing receiving stand and the unloading receiving pedestal are arranged on the left and right sides of the elevating and lowering pedestal 9 at a predetermined level, and the warehousing container 17 to be laid in the warehouse. Is transferred from the loading platform for loading to the loading platform 9 by the transfer means 10, and the loading container 17 to be loaded is pushed out from the loading platform 9 to the loading platform for loading by the loading means 10 and loaded. You can

When a load 18 is replenished in the load storage container 17 stored on the shelf 3, the load 18 to be replenished is placed at the home position of the loading / unloading transfer device 1, for example.
It is placed on the drive belt conveyor 16 on the lifting platform 9.
Then, as the loading / unloading transfer device 1 travels and the lifting / lowering platform 9 moves up / down, as shown in FIG.
1 is moved to a position right beside the load receiving portion 19 in which the container is stored. At this time, as shown in FIG. 1B, the container support level of the drive belt conveyor 16 is slightly higher than the upper end of the load container 17 to be refilled. The lifting of the lifting platform 9 is stopped at a higher level. When the drive belt conveyor 16 is driven in such a state and the load 18 on the conveyor 16 is carried out toward the load storage container 17 in the shelf 3 which is the target of the load replenishment, the load 18 is the same as in FIG. 1B and FIG. 3, respectively. As indicated by the phantom line, the load is sent from the drive belt conveyor 16 into the load storage container 17 to be replenished, and the replenishment of the load 18 to the load storage container 17 is completed.

In the above embodiment, the cargo replenishing transfer means 11
The (drive belt conveyor 16) is arranged at a level for supporting the load storage container 17 transferred by the transfer means 10, and the load replenishment transfer means 11 (drive belt conveyor 16).
However, the structure is such that it can also serve as a transfer means for assisting the transfer of the load storage container 17 transferred by the transfer means 10 in the transfer direction.
As shown in FIG. 4, the load replenishing transfer means 11 (driving belt conveyor 16) can be arranged above the transfer path of the load storage container 17 transferred by the transfer means 10. In this case, the stop level of the lifting platform 9 at the time of the load replenishment work is simply lower than that of the previous embodiment, and the work of replenishing the load 18 with respect to the load storage container 17 in the shelf can be performed in the same manner.

With this structure, a pair of left and right guides 21 for controlling the position of the load 18 supported on the load replenishing transfer means 11 (driving belt conveyor 16) and transferred.
The width of the space is set to be smaller than the width between the pair of left and right guides 22 provided for guiding the load container 17 as shown in FIG.
The load 18 can be narrowed according to the width of the load 18, and the load 18 can be reliably delivered into the load storage container 17. Further, the container support portion 23 on the hoisting and loading platform 9 in the transfer means 10 is
For example, a belt conveyor or a roller conveyor that can freely rotate can be provided, so that the transfer means 10 can have the most convenient structure.

The transfer means 10 and the cargo replenishing transfer means 1
The configuration of No. 1 is not limited to that of the above embodiment. For example, as the transfer means 10, a running fork type or a means provided with a container pushing / pulling engaging member that engages with a locked portion provided at the end of the load storage container can be used. A drive roller conveyor, a reciprocating pusher, or the like can also be used as the load replenishing transfer means 11. Further, although the lifting platform 9 is shown as being hung from the monorail train type transporting apparatus 1 for loading and unloading so that it can be lifted and lowered,
The present invention can also be applied to a stacker crane type loading / unloading transfer device that includes a lifting platform (carriage) that moves up and down along columns.

[0020]

As described above, according to the loading / unloading transport apparatus of the present invention, when it becomes necessary to replenish a load in the load storage container stored in the shelf, the load to be replenished. After moving the loading / unloading transfer device to the shelf position where the load storage container for replenishing the load is stored, the load replenishment transfer device is activated. ,
It is possible to send and replenish the load on the load replenishing transport means into the load storage container on the shelf side.

Therefore, as in the conventional case, the load storage container to be replenished with the load is once discharged from the shelf to the load replenishing work place at the home position of the loading and unloading transfer device, and after replenishing the load, the load is again stored. Compared to the case where a container has to be stored, the time for carrying the load storage container to be replenished back and forth between the storage position of the shelf and the load replenishment work place becomes unnecessary, and moreover, the load storage container from inside the shelf Since it is not necessary to take out to the storage / transport device side, it is possible to significantly improve the efficiency and reduce the running cost.

In particular, as shown in the embodiment, when the load replenishing transfer means is arranged at a level for supporting the load storage container transferred by the transfer means, the load replenishing transfer means is moved. It is also possible to use it as a transfer means for assisting the transfer of the load storage container transferred by the mounting means in the transfer direction.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of an essential part showing a state at the time of loading / unloading work of a load storage container, and FIG. 1B is a vertical sectional front view of an essential part showing a state at the time of load refilling work.

2 is a cross-sectional plan view of FIG. 1A.

FIG. 3 is a cross-sectional plan view of FIG. 1B.

FIG. 4 is a vertical cross-sectional side view of essential parts showing another embodiment.

[Explanation of symbols]

 1 monorail electric train type transfer device 2 guide rails 3 shelves 8 hoisting platform hanging belts 9 hoisting platforms 10 transfer means 11 load replenishment transportation means 12 lateral moving body 13a container pusher / pusher 13b container pusher / pusher 14 Intermediate lateral moving body 16 Drive belt conveyor 17 Load storage container 18 Load to be replenished 19 Shelf side load receiving part

Claims (3)

[Claims] 1. A hoisting platform (9) capable of selectively corresponding to each stage cargo receiving section (19) of a shelf (3), and a corresponding cargo receiving section (19) provided on the hoisting platform (9). A loading / unloading transfer device (1) comprising a transfer means (10) for transferring a load storage container (17) to and from the load storage container, and a load replenishment transfer means (11). The means (11) is provided on the lifting platform (9), supports the load (18) to be replenished, and transfers the load (18) to the transfer means (1).
A transfer device for loading and unloading which is carried out in the container transfer direction of 0). 2. The warehousing / discharging device according to claim 1, wherein the load replenishing transfer means (11) is arranged at a level for supporting the load storage container (17) transferred by the transfer means (10). Carrier device. 3. The load replenishing transfer means (11) according to claim 1, wherein the transfer means (11) is arranged above the transfer path of the load storage container (17) transferred by the transfer means (10). Transfer device for loading and unloading.