JPH10273204A - Loop type carrier device and automatic warehouse using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve carring capacity without increasing number of carrier trucks of a loop type carrier device. SOLUTION: When packed products 6 loaded in supply stations 8a-8d are loaded in carrier trucks 52a-52n packed matters 6 to be carried to respective discharging line of an upstream discharging station 4a are loaded to carrier trucks 15a-52n traveling on a traveling railway 51 along packed product storing shelf 2 and the packed products 6 to be carried to respective discharging line of a downstream discharging station 4b are mounted on a carrier truck 6 traveling on the traveling railway 51 along the discharging station 4 and the packed products 6 are carried and loaded on the designated discharging line of the discharging station 4 while the carrier truck 6 is going half round the traveling railway 51 to reduce the time that the carrier truck 52 is traveling with no load.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loop type transport apparatus using a track type transport vehicle and an automatic warehouse using the same, and more particularly to a high speed and high efficiency sorting of packaged goods.

[0002]

2. Description of the Related Art Rotary shaft trolleys are capable of steplessly controlling the transfer speed, and are capable of high-speed transfer, smooth stopping, high stopping accuracy, simple structure, energy saving, and easy maintenance.
Installed in production lines and distribution centers. For example, as shown in the perspective view of FIG.
The transfer device 16 between the supply station 13 having the plurality of supply conveyors 12 connected to the supply station 13 and the delivery station 15 having the plurality of delivery conveyors 14 is provided around the supply station 13 and the delivery station 15. And a transport trolley 18 composed of a plurality of rotary shaft trolleys running along the travel trajectory 17. Then, while the transport cart 18 makes one round of the traveling track 17, the package to be shipped from the package storage shelf 11 is mounted on the transport cart 18 from the supply station 13, and the transport cart 18 on which the package is loaded is sent out. When the package reaches the station 15, the package is delivered from the carrier 18 to the delivery station 15.

[0003] In such a delivery center, at the supply station 13, the carrier 1 is moved from the outer periphery of the loop-shaped traveling track 17.
8 and the delivery station 15 also discharges the packaged goods from the outer circumference of the traveling track 17 at the delivery station 15, so that the loaded goods are loaded and transported while the transporting cart 18 makes one round of the traveling track. The series of payout operation steps is limited to one time. For this reason, a method of increasing the number of transport vehicles has been adopted to improve the transport capacity.

[0004]

However, the transport cart is temporarily stopped when loading the package at the supply station or when dispensing the package at the delivery station, and performs loading or unloading of the package. For this reason, the subsequent transport vehicle must be stopped until the package is loaded on the transport vehicle or the payout is completed. For this reason, even if the number of transport vehicles is increased, there is a limit in improving the transport capacity.

The present invention has been made in order to improve such disadvantages, and provides a loop type transfer apparatus capable of improving the transfer capacity without increasing the number of transfer carts and an automatic warehouse using the same. The purpose is to do so.

[0006]

SUMMARY OF THE INVENTION A loop type transport apparatus according to the present invention transports a package supplied from a supply station by a transport vehicle circulating and traveling along a loop-like traveling path. The loop-type transport device is characterized in that the supply station is provided inside the center of the loop of the traveling track, and the package is transferred from both sides to the transport vehicle traveling on the traveling track.

In a second loop type transport apparatus according to the present invention, the package supplied from the supply station is moved to the delivery station by a transport vehicle circulating and traveling along a loop-shaped traveling track. In a loop-type transport device for transporting, a supply station is provided inside a central portion of a loop of a traveling track,
Transfer the packaged goods from both sides to the transport trolley traveling on the traveling track, and transfer the packaged goods transferred to the transport trolley to the unloading station while the transport trolley makes a half circle around the loop of the traveling track. Features.

The automatic warehouse according to the present invention has a package storage shelf, a loop-type transfer device, a supply station and a delivery station, and the package storage shelf has a multi-stage and multiple storage shelf. The loop-type transport device has a loop-shaped traveling track and a transport vehicle circulating along the traveling track, and the traveling track is laid along a package storage shelf and an unloading station. The supply station is provided inside the central part of the loop of the traveling track, and the package is transferred from both sides to the transport vehicle traveling on the traveling track, and the package is transferred to the transport vehicle at the supply station. Is transported to an unloading station provided along the traveling track while the carrier truck makes a half circle around the loop of the traveling track.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An automatic warehouse according to the present invention has a package storage shelf, a delivery station, a loop type transport device, and a supply station. The package storage shelf has a multi-tiered storage shelf, and the delivery station is provided to face the front surface of the package storage shelf. The loop-type transfer device is composed of a plurality of loop-type traveling tracks laid along the front surface of the package storage shelf and the unloading station, and a plurality of, for example, rotary shaft trucks circulating along the traveling path. And an unmanned carrier. The supply station is provided inside the center of the loop of the traveling track, and has a supply stage that is close to the transporting cart traveling on the traveling track on the package storage shelf side and the unloading station side. The delivery station has an upstream delivery station having a plurality of delivery lines arranged along the upstream side of the traveling track and a downstream delivery having a plurality of delivery lines arranged along the downstream side of the traveling track. And a station.

[0010] When the package transferred to the supply stage of the supply station is transferred to the transport trolley, the package to be transported to each delivery line of the upstream delivery station is moved along the package storage shelf. The packaged goods which are transferred to the transport trolley traveling on the traveling trajectory and transported to each of the delivery lines at the downstream unloading station are transferred to the transport trolley which travels along the transport trajectory along the unloading station and transported. The package is conveyed and transferred to a predetermined retrieval line at a retrieval station while the truck travels around the traveling track halfway, so that the period during which the transport truck travels with no load is reduced.

[0011]

1 and 2 show the construction of an automatic warehouse provided in a distribution center according to an embodiment of the present invention. FIG. 1 is a perspective view with a part cut away, and FIG. 2 is a plan view. It is. As shown in the figure, a three-dimensional automatic warehouse 1 is a multi-stage, multi-stage package storage shelf 2.
A storage station 3 provided on the rear surface of the package storage shelf 2; a delivery station 4 provided opposite to the front surface of the package storage shelf 2; and a package storage shelf 2 and delivery station. And a loop-type transport device 5 provided between the loop-type transport device 5. The package storage shelf 2 has a first-in first-out type fluid shelf, and conveys the dolly 7 on which the package 6 is mounted to the front surface as needed by a driving means such as a cylinder or a chain conveyor. For example, a plurality of sets, for example, two sets of pallet storage lines 31a and 31b and a plurality of sets of four pallet storage lines 31a and 31b, and four sets of dolly 7 are transferred to the receiving station 3 for example. It has two storage stackers 32a and 32b.

The loop-type transport device 5 is provided with a loop-type running track 51 laid along the front surface of the package storage shelf 2 and the unloading station 4, and is indicated by an arrow along the running track 51. As described above, there are a plurality of unmanned transport vehicles 52a to 52n, which are, for example, rotating shaft type vehicles traveling clockwise. Inside the center of the loop of the running track 51, a plurality of sets, for example, 4
A set of supply stations 8a to 8d is provided. The supply stations 8a to 8d are mounted on the transporting carts 52a to 52n traveling on the traveling track 51 and the package storage shelf 2 side and the delivery station.
A supply stage 81 that is close to the station 4 side;
A delivery stage 82 provided for each stage of the package storage shelf 2 above the stage 81, a supply stage 81, and a delivery stage 8
2 is provided along the vertical transport device 83. The delivery station 4 has a plurality of delivery lines 41a to 41t arranged along the upstream side of the traveling track 51 and a plurality of upstream delivery stations 4a arranged along the downstream side of the traveling track 51. And a downstream delivery station 4b having delivery lines 42a to 42t.

When the packaged goods 6 are stored in the packaged storage shelf 2 in the three-dimensional automatic warehouse 1 constructed as described above, the packaged goods 6 (hereinafter referred to as "packaged goods") stacked on the dolly 7 are forged.
Pallet storage line 3 by clift or conveyor
1a and 31b. Pallet storage line 31
a and 31b convey the package 6 to the package storage shelf 2 respectively. The package 6 conveyed to the package storage shelf 2 is conveyed to a predetermined storage shelf by the storage stacker crane 32 and transferred.

When unpacking the packaged goods 6 stored in the packaged goods storage shelf 2, the packaged goods 6 on the front of each stage of the packaged goods storage shelf 2 are supplied by a horizontal transport cart 9 arranged for each stage. The slide fork is conveyed to the delivery stage 82 of the station 8a to 8d and provided on, for example, the horizontal conveyance carriage 9.
Is transferred to the delivery stage 82 by the hook. The packaged product 6 transferred to the delivery stage 82 is transferred to the vertical transfer device 83 by a slide fork provided in the vertical transfer device 83, and is transferred to the supply stage 81 by the vertical transfer device 83 for transfer. Will be posted. The packaged product 6 transferred to the supply stage 81 is
Are transferred to the transport carts 52a to 52n of the transfer type transport device 5 and the predetermined delivery lines 41a to 41
1t, 42a to 42t, and transferred. In addition,
The package 6 stored on the shelf on the first floor of the package storage shelf 2 is a traveling track 51 along the package storage shelf 2.
and is directly transferred to the transport vehicles 52m and 52n that travel on a.

Supply station of supply stations 8a to 8d
The transported carts 52a to 52n
When the transfer is performed, the carriages 52a to 52n are traveling clockwise along the traveling track 51 as indicated by the arrows, so that each of the delivery lines 41a of the upstream delivery station 4a.
The packaged goods 6 to be transported to .about.41t are transferred to the transport carts 52a to 52n traveling on the traveling track 51a along the packaged goods storage shelf 2, and each of the delivery lines 42 of the downstream delivery station 4b.
Packed articles 6 to be transported to a to 42t are transport carts 52a to 52 traveling on a traveling track 51b along the unloading station 4.
Transfer to n. The packaged goods 6 transferred to the transport carts 52a to 52n traveling on the traveling track 51a on the side of the package storage shelf 2 are placed on the upstream unloading station 4a while the transport carts 52a to 52n make a half turn around the traveling track 51. Outgoing lines 41a-4
It is transferred when it reaches 1t. Upstream delivery station 4
The packaged goods 6 to be transported to each of the delivery lines 42a to 42t of the downstream delivery station 4b are transferred to the empty carriages 52a to 52n by transferring the packaged goods 6 to the respective delivery lines 41a to 41t of FIG. The sheet is transported and transferred to each of the exit lines 42a to 42t of the downstream exit station 4b. Outgoing lines 41a to 41t and 42a to 42 of the outgoing station 4
The packaged product 6 transferred to the point t is conveyed to the cargo handling place side by a driving means such as a cylinder or a chain conveyor.

In this manner, the transfer, transfer and supply of the packaged product 6 are performed twice while the transport vehicles 52a to 52n make one round of the traveling track 51, so that the period during which the transport vehicles 52a to 52n travel with an empty load. Can be reduced, and the transport efficiency can be increased.

In the above embodiment, the package storage shelf 2 and the delivery stage
Outgoing lines 41a-41t, 42a-42t of the application 4
In the above description, the package 6 is transported by a driving means such as a cylinder or a chain conveyor. However, the package storage shelf 2 and the outgoing lines 41a to 41t and 42a to 42t are tilted to the front, and the package 6 is moved by gravity. You may make it convey.

In the above embodiment, the transport vehicles 52a-52
Although the description has been given of the case where the rotating shaft type carriage is used as n, a carriage using a suspended monorail or a linear motor carrier may be used as the carriages 52a to 52n. Further, trackless unmanned transport vehicles may be used as the transport vehicles 52a to 52n.

[0019]

As described above, according to the present invention, the supply station is provided inside the center of the loop of the traveling track,
The packaged goods are transferred from both sides of the supply station to the transporting trolley traveling on the traveling track, and the packaged articles are transported to a predetermined place while the transporting trolley makes a half circle around the loop of the traveling track. Since the carrier truck is loaded, the transfer, transport, and supply of the packaged product can be performed twice while the carrier truck makes one round of the traveling trajectory. Can be increased.

Further, when unpacking the package from the automatic warehouse, the transfer of the package is performed while the transporting trolley makes one round of the traveling track.
Since the transfer and supply are performed twice, the transfer capacity can be improved without increasing the number of transfer vehicles, and the facility cost and the maintenance management cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a three-dimensional automatic warehouse according to an embodiment of the present invention.

FIG. 2 is a plan view of the embodiment.

FIG. 3 is a perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 3D automatic warehouse 2 Packing goods storage shelf 4 Unloading station 5 Conveying device 6 Packing goods 8 Supply station 51 Traveling track 52 Transporting cart

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shinichiro Eto 1-2-1 Marunouchi, Chiyoda-ku, Tokyo Inside Nihon Kokan Co., Ltd.

Claims (3)

[Claims] 1. A loop-type transport device for transporting a package supplied from a supply station by a transport vehicle circulating along a loop-shaped travel track, wherein the supply station is connected to the travel track. A loop-type transport device provided inside a loop central portion, wherein a package is transferred from both sides to a transport vehicle traveling on a traveling track. 2. A loop-type transport device for transporting a package supplied from a supply station to a delivery station by a transport carriage circulating along a loop-shaped traveling track. The package is placed inside the center of the loop of the running track, and the packaged goods are transferred from both sides to the carrier cart running on the running track, and the packaged goods transferred to the carrier are looped by the carrier cart. Characterized in that the transfer is carried out to a delivery station during a half circle of the loop. 3. A package storage shelf, a loop-type transfer device, a supply station and a delivery station, wherein the package storage shelf has a multi-stage and multiple storage shelf, and a loop type. Has a loop-shaped traveling track and a transport vehicle circulating along the traveling track, the traveling track being laid along the package storage shelf and the unloading station, and the supply station being It is installed inside the center of the loop of the running track, and transfers the packaged goods from both sides to the transporting cart that runs on the running track. An automatic warehouse, wherein the warehouse is transferred to an unloading station provided along a traveling track during a half circle of the loop.