JPH09124143A - Unloading device from multistage truck to conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently and stably performing unloading without a wide and deep hole for equipment, by providing a pusher and a primary conveyor on a rising and lowering stand to be vertically moved, and making the heights of the primary conveyor and a secondary conveyor uniform. SOLUTION: When a multistage truck 5 on which load bodies C are loaded is fed, the load bodies are housed between a primary conveyor 1 and a pusher 3 in parallel. When the pusher 3 is operated in a state where the pusher 3 and the primary conveyor 1 are made into the heights of a topmost rack 17 of the multistage truck 5, the load bodies C on the rack 17 are pushed out to the primary conveyor 1. This procedure is repeated to the lower rack 17. After the pushing-out, the pushing-out space for the load body C is formed by the turning movement of the primary conveyor 1 each time. The primary conveyor 1 and the secondary conveyor 2 are made into the same level every time or in the suitable time, and the load bodies C are transferred from the primary conveyor 1 to the secondary conveyor 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an unloading device for transferring, for example, a package packed with eggs from a multi-stage trolley provided with a large number of shelves to a conveyor.

[0002]

2. Description of the Related Art Eggs are packed in a tray in which the eggs are arranged vertically and horizontally, and a plurality of stacked trays are used as a single package for loading, unloading, shipping, transporting, etc. Done. For storage, a multi-stage trolley in which shelves are arranged in a high row is used, and the racks are stored in a state where a load is stored in each shelf, and the storage is carried out in that state.

[0003] In the case of warehousing, it may be carried on the conveyor up to the warehousing exit. In that case,
It is necessary to transfer the load from the multi-stage trolley to the conveyor. Conventionally,
In such a case, the unloading was done manually, but in order to improve the efficiency, the applicant previously developed an unloading device for pushing out the load to the primary conveyor by the extruder (Japanese Patent Laid-Open No. 5-338725). Issue).

[0004]

According to the above-mentioned unloading apparatus of the applicant, an air cylinder having a rod extending horizontally is used as the extruder, and the air cylinder is arranged on a table. However, the load was pushed out from the racks of the multi-stage trolley by the pusher at the end of the rod. In order to move the multi-stage trolley up and down, and to place it on an unstable lifting deck to perform work, the extrusion speed cannot be increased so that the run-out of the multi-stage trolley does not increase. There was a problem.

[0005] The lifting deck moves up and down above the floor surface, and since the range of descent is relatively large, the lifting deck must be equipped with a multi-stage trolley that is wide and deep. A vertical hole was required, and the equipment was oversized at this point. In addition, it took time to lift up and down to withstand the load, was not efficient, and was not suitable for energy saving.

The present invention has been made in view of the above-described circumstances,
It is an object of the present invention to provide an unloading device from a multi-stage trolley to a conveyor, which does not necessarily require a wide and deep hole for the equipment and can unload efficiently and stably.

[0007]

In order to achieve the above object, the present invention comprises a multi-stage trolley having a plurality of shelves,
In the unloading device that pushes the load onto the primary conveyor by the extruder, the extruder and the primary conveyor are moved up and down so that the positions of the extruder and the primary conveyor are adjusted stepwise to the heights corresponding to the shelves of the multi-stage carriage. The height of one and / or the other of the primary and secondary conveyors is equal so that the primary conveyor that is mounted on the platform and receives the load can transfer it to the subsequent secondary conveyor. It is characterized in that it is configured to be at the level of.

[0008]

[Operation] Since the unloading device from the multi-stage trolley to the conveyor is configured as described above, when the multi-stage trolley loaded with load is sent, it is placed in parallel between the primary conveyor and the extruder. Pay to. Next, when the extruder and the primary conveyor are set to the height of the uppermost shelf of the multi-stage carriage, the extruder is operated, and the load of the shelf is pushed out to the primary conveyor. This will be sequentially repeated on the lower shelf.

After pushing out, the pushing space of the load is opened by turning the primary conveyor each time. Further, at each time or at an appropriate time, the primary conveyor and the secondary conveyor are at the same level, and the load is transferred from the primary conveyor to the secondary conveyor.

[0010]

Next, an embodiment of the present invention will be described with reference to the drawings.

Unloading device P from multi-stage trolley to conveyor
Is carried out in the warehouse device Q (see FIG. 3) by the inversion conveyor system, and the passage 7 of the multi-stage carriage 5 is provided in parallel between the extruder 3 and the primary conveyor 1 at the initial position of the device. , The primary conveyor 1 and the extruder 3 are moved up and down.

The warehousing device Q has a conveyor reversing course 8 so that the cargo C can be fed to the warehousing exit 11 while being stocked, and at the entrance 9 thereof, the cargo C sent from the primary conveyor 1 is conveyed. A transfer device 13 is provided. Further, since the secondary conveyor 2 is provided between the primary conveyor 1 and the transfer device 13, the load C placed on the primary conveyor 1 is transferred via the secondary conveyor 2 to the transfer device. Sent to 13.

Regarding this point, in the transfer device 13, the load C is transferred from the secondary conveyor 2 to the load receiving conveyor of the transfer device 13 so that the load C is replenished when it is moved to the inlet 9 of the reversing course 8. It will be moved to 15, 15. In order to control this, the transfer device 13
Gate valves 16 and 16 are provided so as to be openable and closable. In addition, in order to extrude to the reversing course 8, the air cylinders 18, 1
8 is used.

The unloading device P automatically unloads the load C from the multi-stage trolley 5 to the primary conveyor 1 in such a warehouse device Q, and the multi-stage trolley 5 has several stages. Since it has the shelves 17, 17, ..., By vertically moving the primary conveyor 1 and the extruder 3, the height of the shelves 17 is adjusted to the same level as the target shelves 17, and the loads of the shelves 17 are sequentially transferred. The body C is unloaded on the primary conveyor 1.

The extruder 3 comprises several air cylinders 21, 21 and 21 arranged on a lift table 19, and a pusher 23 is provided at the tip of each rod. Belt conveyors are used as the primary conveyor 1 and the secondary conveyor 2, and the primary conveyor 1 is mounted on the lift 20.

FIG. 3 shows a line of packings C, C, C on a shelf 17.
1 shows a state in which is pushed out to the primary conveyor 1. In this case, the air cylinders 21, 21, 21 of the extruder 3 and the secondary conveyor 2 are located at the height position of the shelf 17.
Height H is set (see FIG. 2).

Since the load C is unloaded from the multi-stage trolley 5 in the order from the upper shelf 17, the extruder 3 is lowered stepwise by the air cylinders 21, 21, 21 from a high position. I will let you. However, the primary conveyor 1 does not simply take such a stepwise descent, but in order to transfer the package C to the secondary conveyor 2 after receiving the load C at the height of the target shelf 17. Alternatively, it is lifted (lowered in the case of FIG. 2) to be returned to the height L of the secondary conveyor 2, the load C is transferred to the secondary conveyor 2, and then lifted or lowered to the target shelf 17.

Regarding the transfer of the load from the primary conveyor 1 to the secondary conveyor 2, unlike the case shown in the figure, the secondary conveyor 2 may also be moved up and down and its height position may be changed. Then, the time required for the primary conveyor 1 to travel back and forth to the secondary conveyor 2 is omitted. In this case, a device for raising and lowering the secondary conveyor 2 is required, but the work becomes more efficient.

For raising and lowering the extruder 3 and the primary conveyor 1, an air cylinder is installed in the elevators 19 and 20, a stopper and a sensor are used, and stepwise position setting is automatically performed by IC control. It is supposed to be done. It does not matter what this equipment is, but in any case, it is not necessary to make a hole in the floor, or if it is necessary, a small hole for accommodating the air cylinder will be sufficient. Therefore, the construction of the device is simplified.

[0020]

As described above, according to the unloading device for a multi-stage trolley to a conveyor of the present invention, a wide and deep hole is not necessarily required for the equipment, and the construction and the equipment are relatively simple. In addition, it is not necessary to move up and down the multi-tiered trolley, which has a large load, in order to push and load the load of each tier from the multi-tiered trolley. While keeping it, the load can be pushed out quickly with a strong force, and since it takes less time to move up and down the lightweight extruder and the primary conveyor, the work can be very efficient. is there.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an outline of an unloading device from a multi-stage trolley to a conveyor.

FIG. 2 is an explanatory view of the same unloading device as seen from a side surface.

FIG. 3 is a plan view of the warehouse device showing the arrangement of the unloading device.

[Explanation of symbols]

 P Unloading device from multi-stage trolley to conveyor C Load 1 Primary conveyor 2 Secondary conveyor 3 Extruder 5 Multi-stage trolley 17 Shelf 19,20 Lift platform

Claims (1)

[Claims] 1. In an unloading device that pushes a load from a multi-stage trolley having a plurality of shelves onto a primary conveyor by an extruder, the extruder and the primary conveyor are placed at a height corresponding to each shelf of the multi-stage trolley. Each stage is equipped with a vertically moving lift so that the position can be adjusted in stages, and the primary conveyor and the secondary conveyor can be moved so that the loaded primary conveyor can transfer it to the subsequent secondary conveyor. An unloading device from a multi-stage trolley to a conveyor, characterized in that the heights of the conveyors are raised and lowered so that the heights of the conveyors become equal to each other.