JPH0715611U - Trolley with empty pallet magazine - Google Patents

Abstract

(57) [Summary] [Purpose] To save space by omitting empty pallet magazines so that a physical distribution system can be installed even on limited premises and empty pallets can be used efficiently. [Structure] A trolley C traveling between stations for loading and unloading luggage, a means for storing a plurality of empty pallets in a stacked state, and a means for delivering an empty pallet 13 to the storage means. Was set up.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a trolley that stores a plurality of empty pallets and empty buckets and supplies them to each station as needed.

[0002]

[Prior art]

 Conventionally, a track has been laid between the loading / unloading area and the loading / unloading station of the warehouse, or between the loading / unloading station and the picking station for sorting and packing, and The technology for transporting luggage by running an automated guided vehicle on orbit is known. When carrying a package by such an automated guided vehicle, the package is carried on a pallet or on a bucket.

For example, in the case of the distribution center shown in FIG. 4, an endless track 2 is laid between the entry / shipment area A and the automated warehouse B, and an automated guided vehicle 3 travels on the track 2 in one direction. You can do it. In the receiving place AI in the input / shipping place A, the carry-in conveyor 4, the binding machine 9, the empty pallet magazine 10 and the pallet conveyor 11 are arranged, and in the shipping place AO, the carry-out conveyor 5, the empty pallet magazine 10 and the pallet conveyor. A forklift 12 is provided between the truck 1 and the loading / unloading area A to transport the cargo W. In the automatic warehouse B, a carry-in conveyor 6 is provided at the receiving station, and a carry-out conveyor 7 is provided at the outgoing station, so that the stacker crane (not shown) can transfer the cargo W between the rack and the station.

[0004]

[Problems to be solved by the device]

 However, such a conventional distribution center can be used when the site is large, and when the site is small, the track 2 that connects the loading / unloading area A and the automated warehouse B is shortened to enable the loading / unloading. It is also necessary to reduce the distance between the conveyors in the field A. However, since the width of the conveyor cannot be narrowed, it is necessary to reduce the number of conveyors or remove the track to eliminate the unmanned transportation system, but it takes time to deliver the luggage and the luggage is delayed, so it can be done. It reduces efficiency. Therefore, the present invention attempts to save space by omitting an empty pallet magazine, and to stock the pallets on the track without reducing other conveyors to prevent a decrease in efficiency.

[0005]

[Means for Solving the Problems]

 The problems to be solved by the present invention are as described above, and in order to solve the problems, a trolley that travels between stations for loading and unloading luggage is used in which a plurality of empty palettes are stacked. A means for storing and a means for delivering an empty pallet to the storing means are provided.

[0006]

[Action]

 By using such means, when an unnecessary empty pallet is generated at a certain station, the truck is moved to that station to receive the empty pallet, and this empty pallet is transferred to the storage means by the transfer means and stored. Store in a stacked state by means. On the other hand, when an empty pallet is needed at a certain station, the truck is moved to that station, the empty pallet stored by the storage means is taken out by the delivery means, and is supplied to the station.

[0007]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing an input / shipment area, an automatic warehouse, and an unmanned transfer system arranged between them, and FIG. 2 is a front view of a trolley having an empty pallet magazine. 3 is a plan view of the same.

Explaining the overall configuration in FIG. 1, a loop-shaped track 2 is laid between the input / shipment area A and the automated warehouse B, and the automated guided vehicle 3 and the present invention are installed on the track 2. The trolley C equipped with an empty pallet magazine is allowed to travel in one direction. In the loading / unloading area A, the carry-in conveyors 4 and 4 and the carry-out conveyors 5, 5 and 5 are arranged in parallel, and the binding machine 9 is provided between the carry-in conveyors 4 and 4 to load the cargo to be carried in. Since the pallet conveyor and the empty pallet magazine are not provided on the sides of the carry-in conveyor 4 and the carry-out conveyor 5 as in the conventional case, the length L1 in the width direction can be shortened. Since there is no empty pallet magazine in the length L2 in the load feeding direction, the conveyor can be shortened.

Further, a traveling rail 16 is laid between the racks 15 of the automated warehouse B, and a stacker crane (not shown) travels between the racks 15 to store and carry out cargo. In this way, the loading station including the loading conveyor 6 and the loading station including the loading conveyor 7 are arranged on both sides of the starting end side (track 2 side) of the traveling rail 16.

As shown in FIGS. 2 and 3, the cart C having an empty pallet magazine has a traveling section E on which a magazine section M is arranged, and the track 2 has legs 2a and 2a on both sides. Rails 2b, 2b are arranged on the rails, a drive shaft 2c is arranged between the legs 2a, 2a, and traveling guides provided on both sides of the lower surface of the lower frame 20 of the traveling section E on the rails 2b, 2b. 21 and 21 are mounted, and a traveling disc 22 rotatably provided on the lower surface of the center of the traveling frame 20 is placed on the drive shaft 2c, and the traveling disc 22 is configured so that the contact position with the drive shaft 2c can be changed. By changing the contact position with the drive shaft 2c which is constantly rotating, it is possible to travel or stop at an arbitrary position. The traveling unit E is not particularly limited to one that travels by the drive shaft 2c, one that is self-propelled on a rail with a drive motor mounted, or one that travels while detecting a guide wire laid on the floor. .

In the magazine section M, a pantograph-shaped lifting device 23 serving as a delivery means is arranged on the traveling frame 20, and the lifting device 23 can be lifted by changing the angle of the link by expansion and contraction of a cylinder, .. is mounted on the elevating device 23 so that the transport rollers 25, 25 ... Can be driven horizontally, and the transport rollers 25, 25 ,. It can be rotationally driven by a motor etc. via a chain housed in 24. Further, columns 26, 26 ... Are erected at four corners of the traveling frame 20, and a horizontal frame 27, 27 provided between the columns 26, 26 above the carrier 24 is provided with front and rear storage means, respectively. Cylinders 30 and 30 are fixed, and the piston rod 30a of the cylinder 30 is inserted into the space for inserting the fork on the side of the pallet 13 to support the stacked pallets 13 and reduce the cylinder 30. Thus, the stacked pallets 13 · 13 ... Can be moved up and down between the columns 26.

The trolley C having such a configuration is controlled as follows. That is, when an empty pallet is generated after the cargo is unloaded at the loading / unloading area A, the empty pallet 13 is placed on the loading conveyor 4 and sent to the track 2 side, while the lifting device 23 is driven to load the carrier 24. The carriage C is stopped at the carry-in conveyor 4 according to the height of the conveyor 4.

Then, by rotating the transport rollers 25, 25, ..., the empty pallet 13 is received from the carry-in conveyor 4, the empty pallet 13 is positioned between the columns 26, and is already stored. Raise the empty pallet 13 at the bottom of the empty pallet group to a position where it can be lifted. When the engagement between the empty pallet 13 at the lowermost end and the piston rod 30a is released, the cylinder 30 is contracted, and the elevating device 23 again causes the empty rollers 13 on the transport rollers 25, 25 ... Increase until. In this state, the cylinder 30 is extended and the piston rod 30a is engaged with the empty pallet 13 on the transport rollers 25, 25 ..., Thus, the storage in the stacked state is completed. After the storage work is completed, the lifting device 23 is lowered.

On the other hand, when an empty pallet is required to receive a load, the lifting device 23 moves the transport rollers 25, 25 ... to the lowermost empty pallet 13 of the empty pallet group. Raise to a position where it can be lifted slightly. When the engagement between the empty pallet 13 at the lowermost end and the piston rod 30a is released, the cylinder 30 is contracted, and the elevating device 23 moves the transport rollers 25, 25 ... to the second empty pallet 13 from the bottom. Is lowered to the same level as the cylinder 30. In this state, the cylinder 30 is extended to engage the piston rod 30a with the second empty pallet 13 from the bottom. Further, the empty rollers 13 can be taken out by lowering the transport rollers 25, 25 ... With the lifting device 23. In this state, the carriage C is stopped by the carry-out conveyor 5, and the transport rollers 25, 25 ... Are driven to supply the empty pallet 13. It should be noted that the same can be done when storing and supplying empty buckets, and the empty pallet referred to in the present invention includes all things used for transporting luggage.

[0015]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. In other words, since a truck equipped with an empty pallet magazine is run between the stations, the space for installing a conventional empty pallet magazine is not required, and the carry-in capacity can be improved by increasing the carry-in conveyor and the carry-out conveyor. It is also possible to shorten the orbit of the and make effective use of the space in the ground. Also, since the empty pallet magazine is on the trolley, it is possible to supply empty pallets to any position or receive and store them at any position, increasing the flexibility of the conveyor layout. I was able to do it.

[Brief description of drawings]

FIG. 1 is a plan view in which an unmanned transfer system is arranged between an entry / shipment site, an automated warehouse, and an automated warehouse.

FIG. 2 is a front view of a trolley provided with an empty pallet magazine.

FIG. 3 is a plan view of the same.

FIG. 4 is a perspective view of a conventional loading / unloading site, an automated warehouse, and an unmanned transportation system arranged between them.

[Explanation of symbols]

 A input / shipping area C trolley M magazine part 2 track 13 pallet 23 lifting device 24 carrier

Claims (1)

[Scope of utility model registration request] 1. A trolley that travels between stations for loading and unloading luggage, and means for storing a plurality of empty pallets in a stacked state, and means for delivering empty pallets to the storage means. A dolly equipped with an empty pallet magazine.