JP2008013288A - Transfer machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transfer machine capable of reducing its weight by considerably reducing the load moment on a telescopic arm by also supporting telescopic arm from its fore end side. <P>SOLUTION: In the transfer machine 3 in which a fixed arm 1 and a movable arm 2 overlap each other and the movable arm 2 slides in an expanding/contracting manner, a receiving rail 5 for supporting the expanded movable arm 2 is arranged on a transfer origin and a transfer destination of an object 4 to be conveyed, a truck 6 for arms traveling on the fixed arm 1 and the movable arm 2 is provided, and a lifting apparatus 7 for lifting the object 4 is provided on the truck 6 for arms. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a transfer machine, and in particular, in a conveyor transfer machine, a stacker crane transfer machine, a lifter transfer machine, and the like, a load moment applied to a telescopic arm is reduced and the transfer machine is reduced in weight. It is related to the machine.

For example, the liquid crystal substrate is processed through a number of processing steps in the manufacturing factory. However, since the processing times are different in these processing steps, it is difficult to directly transfer the processing substrate to the processing device.
Therefore, the liquid crystal substrate is temporarily stored in the cassette stocker in a state where a plurality of liquid crystal substrates are stored in the cassette while waiting for the next process.

The cassette stocker is provided with a plurality of shelves and a transfer machine for transferring the cassettes to the plurality of shelves in order to efficiently store the cassettes.
The transfer machine includes a telescopic arm in which a fixed arm and a movable arm are overlapped and the movable arm slides and expands and contracts. Repeat the transfer of cassettes.

  By the way, the conventional transfer machine is a cantilever type in which the telescopic arm is supported only on the base side, and a large load moment is applied. There was a problem that the weight increased.

  In view of the problems of the above-described conventional transfer machine, the present invention supports the telescopic arm also from the tip side, thereby greatly reducing the load moment applied to the telescopic arm and reducing the weight of the transfer machine. The purpose is to provide a transfer machine.

  In order to achieve the above object, a transfer machine according to the present invention is a transfer machine in which a fixed arm and a movable arm are overlapped, and the movable arm slides and expands and contracts. The transfer destination is provided with a receiving rail that supports the extended movable arm, an arm carriage that runs on the fixed arm and the movable arm is provided, and an elevating device that lifts a conveyed product is provided on the arm carriage. It is characterized by that.

  In this case, the transfer device can be provided with a turning device for turning the fixed arm.

  According to the transfer machine of the present invention, in the transfer machine in which the fixed arm and the movable arm are arranged to overlap and the movable arm slides and expands and contracts, Since a receiving rail that supports the extended movable arm is provided, an arm carriage that runs on the fixed arm and the movable arm is provided, and an elevator device that lifts the conveyed product is provided on the arm carriage. The extended movable arm is supported by the receiving rail of the transfer source or transfer destination, and the carriage for the arm carrying the transported object can travel on the telescopic arm supported also from the front end side. The load moment applied to the arm can be greatly reduced, and the transfer machine can be reduced in weight.

  In this case, the transfer machine is provided with a turning device for turning the fixed arm, thereby turning the movable arm and the carriage for the arm, for example, transferring from the transfer source located at the opposite position across the transfer machine. The conveyed product can be easily transferred first.

  Hereinafter, embodiments of the transfer machine of the present invention will be described with reference to the drawings.

1 to 7 show an embodiment of the transfer machine of the present invention.
In this transfer machine, a fixed arm 1 and a movable arm 2 are arranged in an overlapping manner, and the transfer arm 3 is configured such that the movable arm 2 slides and expands and contracts. An elevating device that is provided with a receiving rail 5 that supports the extended movable arm 2, and that is provided with an arm carriage 6 that runs on the fixed arm 1 and the movable arm 2, and lifts the article 4 to the arm carriage 6. 7 is provided.

In this embodiment, the transfer machine 3 is a transfer machine at the entrance / exit of the transport carriage. For example, as shown in FIGS. 2 to 7, the transport article 4 is transferred between the transport carriage 8 and the placing base 9. Included.
The transfer machine 3 has a fork-shaped movable arm 2 arranged inside a fork-shaped fixed arm 1 so that the upper surfaces thereof are flush with each other, and the movable arm 2 is slid forward by a ball nut 10. Thus, it is supported by the receiving rail 5 provided at the transfer source or the transfer destination.
A plurality of rollers 2 a are provided on the distal end side of the movable arm 2, and the movable arm 2 travels horizontally on the receiving rail 5 by these rollers 2 a.

The arm carriage 6 includes upper and lower forks 61 and 62 formed in a U-shape.
The lower fork 62 includes a roller 62 a that travels on the fixed arm 1 and the movable arm 2, and moves back and forth by the ball nut 11.
The upper fork 61 can be moved up and down on the lower fork 62 by an elevating motor 71 and a lift mechanism (not shown) of the elevating device 7, and moves onto the extended movable arm 2 as shown in FIG. Then, the conveyed product 4 can be lifted from the transfer source.

As shown in FIG. 5, the transfer machine 3 supports the fixed arm 1 so as to be horizontally rotatable, and turns the movable arm 2 and the arm carriage 6 by turning the fixed arm 1. 12 is provided.
Thereby, the conveyed product 4 is easily transferred from the conveying cart 8 at the opposite position across the transfer machine 3 to the placing table 9.

On the other hand, a receiving rail 5 that supports the extended movable arm 2 is installed on each of the transport carriage 8 and the cradle 9.
The receiving rail 5 is installed substantially horizontally at an appropriate height so that the roller 2a of the extended movable arm 2 can smoothly roll when the transfer is performed by the transfer machine 3. ing.
A gap is formed between the receiving rail 5 and the transported article 4 so that the arm carriage 6 with the lower fork 62 lowered and the movable arm 2 on which the arm carriage 6 is placed can be inserted. .

Next, operation | movement of the transfer machine 3 in a present Example is demonstrated.
First, as shown in FIG. 2, the movable arm 2 of the transfer machine 3 is extended toward the conveyance carriage 8, and the movable arm 2 is supported on the receiving rail 5 of the conveyance carriage 8.
Next, as shown in FIG. 3, the arm carriage 6 is moved from the fixed arm 1 onto the movable arm 2 and moved below the conveyed product 4.
In this case, the arm carriage 6 and the movable arm 2 can be moved simultaneously.
Then, the upper fork 61 is raised by the lifting motor 71 of the arm carriage 6 to lift the conveyed product 4 onto the arm carriage 6.

Next, as shown in FIG. 4, the arm carriage 6 that lifts the conveyed product 4 travels from the movable arm 2 onto the fixed arm 1 and moves onto the fixed arm 1.
In this state, when the movable arm 2 is retracted to the inside of the fixed arm 1, the transfer of the conveyed product 4 from the transfer cart 8 to the transfer machine 3 is completed.

Next, transfer of the conveyed product 4 from the transfer machine 3 to the cradle 9 will be described.
As shown in FIG. 5, the movable arm 2 and the arm carriage 6 are turned by turning the fixed arm 1 with the turning device 12 of the transfer machine 3.
Then, the movable arm 2 of the transfer machine 3 is extended toward the cradle 9, and the movable arm 2 is supported by the receiving rail 5 of the cradle 9.

Next, as shown in FIG. 6, the arm carriage 6 is moved from the fixed arm 1 onto the movable arm 2 and moved below the placement position of the conveyed product 4 on the stage 9 side.
Then, the upper fork 61 is lowered by the lifting motor 71 of the arm carriage 6, and the conveyed product 4 is placed on the placing table 9.

Next, as shown in FIG. 7, the arm carriage 6 with the transported article 4 lowered is moved from the movable arm 2 onto the fixed arm 1 and moved onto the fixed arm 1.
In this state, when the movable arm 2 is retracted inside the fixed arm 1, the transfer of the conveyed product 4 from the transfer machine 3 to the cradle 9 is completed.
In this case, the arm carriage 6 and the movable arm 2 can be moved simultaneously.

As described above, the transfer machine according to the present embodiment is configured such that the fixed arm 1 and the movable arm 2 are overlapped and the movable arm 2 slides and expands and contracts. A receiving rail 5 for supporting the extended movable arm 2 is provided at the original and the transfer destination, and an arm carriage 6 that runs on the fixed arm 1 and the movable arm 2 is provided and conveyed to the arm carriage 6. Since the lifting device for lifting the object 4 is provided, the movable arm 2 extended at the time of transfer is supported by the receiving rail 5 of the transfer source or the transfer destination, and the transported object 4 is supported on the telescopic arm supported also from the tip side. The arm carriage 6 on which the vehicle is mounted can travel, whereby the load moment applied to the telescopic arm can be greatly reduced, and the transfer machine can be reduced in weight.
Further, by providing the transfer machine 3 with a turning device 12 for turning the fixed arm 1, the movable arm 2 and the arm carriage 6 are turned, for example, the opposite position or the position of 90 ° with the transfer machine 3 in between. The transfer object 4 can be easily transferred from the transfer source to the transfer destination.

As mentioned above, although the transfer machine of the present invention has been described based on the embodiments thereof, the present invention is not limited to the configurations described in the above embodiments, such as appropriately combining the configurations described in the embodiments. The configuration can be changed as appropriate without departing from the spirit of the invention.
Moreover, although the present Example demonstrates the example applied to the transfer machine of a conveyance trolley entrance / exit, it is also applicable to transfer machines, such as a stacker crane, a conveyor, and a lifter.

  The transfer machine of the present invention has a characteristic that the load moment applied to the telescopic arm is greatly reduced by supporting the telescopic arm also from the tip side, and the transfer machine is lightened. It can be suitably used for various transfer machines including stacker cranes, conveyors, lifters and the like.

It is a perspective view of the principal part which shows one Example of the transfer machine in this invention. The transfer operation | movement by the Example is shown, (a) is a 1st operation | movement figure, (b) is a 2nd operation | movement figure. The transfer operation | movement is shown, (a) is a 3rd operation | movement figure, (b) is a 4th operation | movement figure. The transfer operation | movement is shown, (a) is a 5th operation | movement figure, (b) is a 6th operation | movement figure. The transfer operation | movement is shown, (a) is a 7th operation | movement figure, (b) is an 8th operation | movement figure. The transfer operation | movement is shown, (a) is a 9th operation | movement figure, (b) is a 10th operation | movement figure. The transfer operation | movement is shown, (a) is an 11th operation | movement diagram, (b) is a 12th operation | movement diagram.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixed arm 2 Movable arm 2a Roller 3 Transfer machine 4 Carrying object 5 Receipt rail 6 Arm carriage 61 Upper fork 62 Lower fork 62a Roller 7 Lifting device 71 Lifting motor 8 Transporting carriage 9 Place 10 Ball nut 11 Ball nut 12 Turning apparatus

Claims (2)

  In a transfer machine in which a fixed arm and a movable arm are arranged so that the movable arm slides and expands and contracts, a receiving rail that supports the extended movable arm is provided at a transfer source and a transfer destination of a conveyed product. A transfer machine characterized in that it is provided with an arm carriage that travels on a fixed arm and a movable arm, and an elevator device that lifts a conveyed product to the arm carriage.   The transfer machine according to claim 1, wherein the transfer machine is provided with a turning device for turning the fixed arm.

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