JPH0829803B2 - Loop type transport system - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a transport system for efficiently transporting a transported object.

[Conventional technology]

FIG. 2 is a schematic view showing a conventional loop type transportation system,
FIG. 3 is a front view showing the carrier, and FIG. 4 is a plan view of the same.

In the figure, reference numeral 1 is a conveyed product, and 2 is a plurality of carriers on which the conveyed product 1 is placed. 3 is carrier 2
A traveling path 4 having a guide portion (not shown) for guiding the traveling of the vehicle and a driving portion (not shown) for traveling the vehicle is a transfer station for loading and unloading the carrier 1 with respect to the carrier 2. It comprises a storage warehouse 4a for storing the transported article 1, and a transfer robot 4b for transferring the transported article 1 between the storage warehouse 4a and the carrier 2. In this example, there are five transfer stations 4 from station 4A to station 4E.

Next, the operation will be described. The carrier 2 and the transfer station 4 are controlled by one controller (not shown). For example, when the transfer object 4 to be transferred to the transfer station 4E is generated in the transfer station 4A, the controller gives an instruction to move the carrier 2 to the stop position of the transfer station 4A. Then, the carrier 2 moves clockwise to the transfer station 4A and stops. Next, the controller receives the movement completion report of the carrier 2 and transfers the carrier 1 stored in the storage warehouse 4a to the carrier 2 by using the transfer robot 4b to the transfer station 4A. Give instructions. The transfer station 4A uses the transfer robot 4b to perform loading work of the conveyed objects 1 on the carrier 2.

Next, upon receipt of the loading work completion report, the controller issues an instruction to move the carrier 2 to the stop position of the transfer station 4E, which is the transfer destination, and the carrier 2 moves clockwise to the transfer station 4E and stops. .

Next, the controller receives the movement completion report of the carrier 2 and instructs the transfer station 4E to load and unload the conveyed objects 1. The transfer station 4E uses the transfer robot 4b to move the carrier 2 on the carrier 2. The transported article 1 is stored in the storage warehouse 4a. Then, the controller receives the report of the completion of the storing work and finishes the carrying work.

[Problems to be Solved by the Invention]

Since the conventional loop type transfer system is configured as described above, it is necessary to regulate the traveling direction to one direction in order to efficiently move a plurality of carriers. Depending on the positional relationship between the
There was a problem that it would take a very detour, resulting in a loss of transportation work time.

The present invention has been made in order to solve the above problems, and provides a loop type transfer system capable of taking the shortest route according to the positional relationship between the transfer source and the transfer destination of a transfer operation. With the goal.

[Means for Solving the Problems] A loop type transport system according to the invention according to claim 1 is a plurality of carriers on which a transported object is placed, and a loop shape arranged inside and outside for allowing the carriers to run in mutually opposite directions. And the traveling roads, which are arranged on one side of the juxtaposed traveling roads,
Transfer to a carrier on the shortest route from the positional relationship between multiple transfer stations, each of which moves a transfer item to and from the carrier, and the transfer station that is the transfer source and the transfer station that is the transfer destination. It is provided with a carrier for loading an object and a controller for controlling the transfer station.

Further, a loop type transport system according to a second aspect of the present invention includes a loop-shaped first traveling path, a loop-shaped second traveling path provided in parallel inside the first traveling path, A first carrier that travels in a predetermined direction on the one travel path, a second carrier that travels in a direction opposite to the predetermined direction on the second travel road, and a first and a second installed in parallel. A first transfer machine that is disposed on one side of the traveling path and that places a conveyed object on the first or second carrier at a predetermined position on the first and second traveling paths, and the first and the second machines arranged in parallel. The route, which is arranged on one side of the second traveling road and extends along the predetermined direction on the first traveling road from the predetermined position, is in the opposite direction to the predetermined direction on the first traveling road from the predetermined position. It is installed in parallel with the second transfer machine that lowers the load on the first carrier at a position shorter than the route along A route which is arranged on one side of the first and second traveling roads and which extends from a predetermined position along a direction opposite to the predetermined direction on the second traveling road is a predetermined route on the second traveling road from the predetermined position. At a position shorter than the path along the direction of, the third transfer device that lowers the transferred product placed on the second carrier and the transferred product from the first transfer device are transferred to the second transfer device. Equipped with a controller for instructing the first transfer machine whether to load the transported object on the first carrier or the second carrier according to whether it is unloaded by the machine or unloaded by the third transfer machine Is.

[Action]

In this invention, since the traveling paths along which the carriers travel in opposite directions are arranged in parallel, it is possible to place the conveyed object on the carrier on the shorter traveling path according to the positional relationship between the transportation source and the transportation destination. It is possible to obtain a loop type transportation system which can take the route of.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG.
In FIG. 1, 3a and 3b are loop type carrier traveling paths which are arranged in close proximity to each other and are arranged in parallel in an inner and outer duplex, and carriers 2a and 2b are disposed on the respective traveling paths,
The outer carrier 2b moves clockwise as before,
The other inner carrier 2a is set to move counterclockwise. Note that other configurations, that is, the configuration and arrangement of the transfer station 4 are the same as those of the conventional one, and thus the description thereof will be omitted.

Next, the operation will be described. The above two carriers 2a, 2
b and 5 transfer stations 4 are controlled by one controller (not shown). For example, in the transfer station 4A, if a transfer object 1 to be transferred to the transfer station 4E occurs, the controller checks the positional relationship between the transfer source and the transfer destination, and checks the inner carrier 2a having a shorter route than the outer carrier 2b. Choose this carrier
Instruct to move 2a to the stop position of transfer station 4A. Then, the inner carrier 2a moves counterclockwise to the transfer station 4A and stops. Upon receipt of the movement completion report of the carrier 2a, the controller instructs the transfer station 4A to load the carrier 1 onto the carrier 2a, and the transfer station 4A uses the transfer robot 4b to store the warehouse 4a. The articles to be stored 1 are loaded on the inner carrier 2a.

Next, when the controller receives the loading work completion report, it transfers the inner carrier 2a to the transfer station, which is the destination
Instruct to move to the 4E stop position. Inner carrier
2a moves counterclockwise to the transfer station 4E and stops.

Next, the controller receives the movement completion report of the carrier 2a and instructs the transfer station 4E to load and unload the conveyed objects 1. Then, the transfer station 4E uses the transfer robot 4b to store the conveyed object 1 on the inner carrier 2a in the storage warehouse 4a. The controller receives the completion report of the storage work and finishes the above-mentioned transportation work.

In this way, the controller is
According to the positional relationship of the transfer destination, two loop transfer machines are selected in parallel and the transfer operation is performed.

〔The invention's effect〕

As described above, according to the present invention, since the traveling paths along which the carriers travel in opposite directions are arranged in parallel, the shortest route can be taken according to the positional relationship between the transport source and the transport destination. It has the effect of shortening the time.

[Brief description of drawings]

FIG. 1 is a schematic view showing a loop type transfer system according to an embodiment of the present invention, FIG. 2 is a schematic view showing a conventional loop type transfer system, FIG. 3 is a front view showing a transfer machine, and FIG. Similarly, it is a top view. In the figure, 1 is a conveyed object, 2a and 2b are carriers, 3a and 3b are traveling paths,
4 is a transfer station. The same reference numerals in the drawings indicate the same or corresponding parts.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B65G 47/52 101 Z

Claims (2)

[Claims] 1. A plurality of carriers on which a conveyed object is placed, loop-shaped running paths arranged in parallel inside and outside for allowing the carriers to run in opposite directions, and arranged on one side of the running paths arranged in parallel. A plurality of transfer stations that move the transferred object to and from each of the carriers, and a carrier on the traveling path that is the shortest path from the positional relationship between the transfer station that is the transfer source and the transfer station that is the transfer destination. A loop-type transfer system including a controller for controlling the carrier and the transfer station so that the transfer object is placed on the transfer system. 2. A loop-shaped first traveling road, a loop-shaped second traveling road arranged in parallel inside the first traveling road, and a first traveling road on the first traveling road in a predetermined direction. One carrier, a second carrier traveling on the second traveling path in a direction opposite to the predetermined direction, arranged on one side of the first and second traveling paths arranged in parallel, A first transfer machine for loading a conveyed article on the first or second carrier at a predetermined position on the first and second traveling paths, and arranged on one side of the juxtaposed first and second traveling paths. The route along the predetermined direction on the first traveling road from the predetermined position is more than the route along the direction opposite to the predetermined direction on the first traveling road from the predetermined position. A second transfer machine for lowering the conveyed object placed on the first carrier at a position where the length is shortened, A route which is disposed on one side of the first and second traveling paths and which extends from the predetermined position along the direction opposite to the predetermined direction on the second traveling path is the second traveling from the predetermined position. At a position shorter than the path along the predetermined direction on the road, a third transfer machine that lowers the transferred object placed on the second carrier, and a transferred object from the first transfer apparatus The first transfer machine determines whether the transported object is placed on the first carrier or the second carrier according to whether it is unloaded by the second transfer machine or unloaded by the third transfer machine. A loop-type transfer system including a controller for instructing to.