JPH0776050B2 - Work transfer device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work transfer device used in a flexible production line.

[0002]

2. Description of the Related Art Generally, when transferring a work between two conveyors in a flexible production line, a traveling crane is positioned near the conveyor of the transfer source, a wire is hung on the work, and a traveling crane is used through this wire. The work is hoisted, a traveling crane is run to position it near the transfer destination conveyor, the work is lowered and placed on the transfer destination conveyor, and then the wire is removed from the work.

[0003]

However, according to the method as described above, it takes much time and effort to hang the wire.

Further, particularly when the work is long, there is a risk that the work will fall out of balance and the work will fall if the wire hanging position is inappropriate.

Therefore, it is an object of the present invention to provide a work transfer device capable of transferring a work between two conveyors quickly, easily and safely.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a co-operation between two conveyors which are parallel to each other.
A trolley that runs along the transport direction of the
Arrangement of multiple lifts installed on the car in the front-back direction of the bogie
Then, a guide groove extending in the left-right direction of the carriage is formed on each of the lifts, and a telescopic arm that can extend toward both sides of the carriage is slidably provided in the guide groove.

[0007]

When the work is transferred, the transfer device is horizontally attached to the transfer source conveyor, and the telescopic arms are simultaneously extended to project toward the transfer source conveyor, and the telescopic arms are positioned below the work.

Then, the elevating device simultaneously raises the elevating tables to lift the work, contracts the telescopic arms and draws them onto the dolly, runs the dolly, and horizontally attaches the transfer device to the destination conveyor.

After that, the respective telescopic arms are simultaneously extended to project toward the conveyor of the transfer destination, and the elevators are simultaneously lowered by the elevating device to place the work on the conveyor of the transfer destination.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in Figure 1, two parallel
A carriage 1 is provided between the conveyors A and B. Dolly 1
Is placed on a rail 2 laid parallel to conveyors A and B
Rotation of the wheels 4 driven by the traveling motor 3
To travel along the rail 2. In addition, conveyor A,
A roller conveyor is shown as B.

A plurality of lifts 5 are provided on the carriage 1 .
These lifts 5 are arranged in the front-back direction of the carriage 1.
It A guide groove 6 extending in the left-right direction of the carriage 1 is formed in each lifting table 5, and a telescopic arm 7 is provided in the guide groove 6.

As shown in FIGS. 7 and 8, the elevating table 5 is guided by rollers 9 provided on a vertically extending elevating guide 8 fixed on the carriage 1 to ascend and descend. This elevating / lowering is performed by the elevating / lowering device 10, and the respective elevating / lowering tables 5 are simultaneously raised / lowered.

As shown in FIG. 2, the lifting device 10 has one end of a rod 12 connected to a cylinder 11 provided on a carriage 1, and the rod 12 is moved forward and backward when the cylinder 11 is driven through a first link 13. The rotary motion of the shaft 14 connected to the rod 12, and the rotary motion of the second link 15 and the third link 16 provided at one end of the shaft 14 and the first gear provided at the other end of the shaft 14. 17, second gear 18, fourth link 1
9 and the fifth link 20 convert the vertical movement of the lift table 5.

The telescopic arm 7 is composed of a first arm 21 and a second arm 22, as shown in FIGS.
The first arm 21 is a roller 23 provided in the guide groove 6.
It is slidably supported by. First arm 21
A groove 24 extending in the same direction as the guide groove 6 is formed on the upper surface of the second arm 22, and the second arm 22 is slidably supported by a roller 25 provided in the groove 24.

An extension / contraction motor 26 for the extension / contraction arm 7 is provided on the trolley 1. The rotation of the motor 26 causes the trolley 1 to rotate.
It is transmitted to the shaft 27 extending in the front-rear direction . A lower end portion of a pantograph 28 formed by combining four link members into a parallelogram is connected to the shaft 27. A sprocket 29 is provided at each vertex of the pantograph 28, and the shaft 2
The rotation of 7 is transmitted to a pinion 31 provided at the upper end of the pantograph 28 by a chain 30 that is stretched between four sprockets 29.

A rack 32 that meshes with the pinion 31 is formed on the lower surface of the first arm 21. Pantograph 2
Since the upper end of 8 is pressed upward, the rack 32 and the pinion 31 always mesh with each other regardless of the vertical movement of the lift table 5, and the pinion 31 is driven by the motor 26.
When is rotated, the first arm 21 slides. First
A pinion 33 is provided in the groove 24 of the arm 21, and racks 34 and 35 that mesh with the pinion 33 are formed on the upper surface of the lifting table 5 and the lower surface of the second arm 22, respectively. When the first arm 21 slides, the pinion 33 rotates, and the second arm 22 slides in the same direction as the first arm 21. In addition, each of the first arm 21 and the second arm 22 arranged in parallel slides simultaneously.

In order to transfer the work from the conveyor A to the conveyor B by using the transfer device as described above, the transfer device is laterally attached to the transfer source conveyor A, and each telescopic arm 7 is extended to extend the transfer source conveyor. The second arm 22 is positioned below the work by projecting it in the direction of B.

Then, each elevating table 5 is raised by the elevating device 10, each telescopic arm 7 is passed between the rollers of the conveyor A to lift a work, each telescopic arm 7 is contracted and drawn onto the cart 1, and the cart is carried. 1 is run and the transfer device is horizontally mounted on the transfer destination conveyor B. However, when transferring to the facing position, it is not necessary to drive the carriage 1.

After that, each telescopic arm 7 is extended and projected toward the conveyor B of the transfer destination, and each elevating table 5 is lowered by the elevating device 10, and each telescopic arm 7 is passed between the rollers of the conveyor B. Place the work on conveyor B.

Further, by connecting a plurality of carriages 1, a very long work can be transferred.

[0021]

[Effect] According to the present invention, as described above, parallel with each other
Between two conveyors running along the conveyor
There is a trolley to go, and a number of lifts on the trolley.
The pedestals are arranged in the front-rear direction of the trolley, and each lifting platform is provided with a telescopic arm that can extend toward both sides of the trolley, so each telescopic arm is extended simultaneously in the direction of the conveyor of the transfer source, At the same time, the work is lifted and the telescopic arms are contracted to pull the work onto the trolley, and then the work is laid horizontally on the transfer destination conveyor. By simultaneously lowering and placing the work on the transfer destination conveyor, the work can be quickly, easily and safely transferred between the two conveyors without wire hanging or the like.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outline of an embodiment.

FIG. 2 is a schematic view of the above operating mechanism.

FIG. 3 is an enlarged front view of a longitudinal section of a main part of the same.

4 is a sectional view taken along line XX of FIG.

5 is a cross-sectional view taken along the line YY of FIG.

FIG. 6 is a sectional view taken along line ZZ in FIG.

FIG. 7 is an enlarged vertical sectional front view showing the lifting platform of the above.

FIG. 8 is a transverse plan view of the same as above.

[Explanation of symbols]

 1 trolley 2 rail 5 lifting platform 6 guide groove 7 telescopic arm 10 lifting device A, B conveyor

Claims (1)

[Claims] 1. A conveyor between two conveyors parallel to each other.
A dolly that runs along the carrier direction of the bayer is provided.
Arrangement of multiple lifts installed above in the front-back direction of the trolley
Then, a guide groove extending in the left-right direction of the carriage is formed in each lifting table, and a telescopic arm that is extendable toward both sides of the carriage is slidably provided in the guide groove.