JP2601873Y2 - Pallet conveyor pallet positioning 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 pallet positioning device for a pallet conveyor which transports a pallet on which a work is mounted, stops the pallet at a predetermined position, and transports the pallet to the next process after the operation is completed. .

[0002]

2. Description of the Related Art FIG. 5 is a top view of a conventional pallet conveyor pallet positioning apparatus, and FIG. 6 is a front view thereof. 5 and 6, a roller 4 for correcting a lateral displacement of the pallet 1 is mounted on a pallet 1 on which a work is placed by using a guide rail 3 provided upright on a frame 2 constituting a base of the pallet conveyor. Is provided. The guide rail 3 receives a lateral load of a pallet via a roller 4. A mountain-shaped bracket 5 is attached to the side of the pallet 1.
A pallet setting cam follower 6 is attached.

[0003] A shaft 7 fixes one end of an air cylinder 9 for operating a pallet setting roller 8.
The force of the air cylinder 9 is applied to the shaft 10 and the lever 11
The pallet setting roller 8 clamps the cam follower 6 to hold the pallet 1. At one end of a rotatably supported lever 12 is fixed an absorber 13 for reducing the impact when the pallet is stopped.
The force of the air cylinder 16 is transmitted to the lever 12 through the lever to rotate the lever. One end of this air cylinder 16 is a shaft 17
And the cylinder rod at the other end is
Attach the absorber 13 with the shaft 15 as a fulcrum
Tilt the absorber 13 through the lever 12 which is
To take out the pallet. The pallet positioning device is constituted as described above, and the shaft 7 is attached to the block 18.
0, 15, and 17 are provided to constitute a main body of the positioning device.

[0004] The operation of the conventional pallet positioning device configured as described above will be described below. First, the pallet 1 which has traveled on the conveyor in the direction of arrow A while being guided by the guide rollers 4 along the guide rails 3 is an absorber located at the passing point of the cam follower 6 by the rotation of the lever 12 driven by the air cylinder 16. 13
Stop while relaxing the running resistance. Next, the air cylinder 9 is operated, the lever 11 is rotated about the shaft 10, and the cam follower 6 is clamped by the absorber 13 and the pallet setting roller 8 to position the pallet. When releasing the positioning of the pallet, the air cylinder 16 is operated to rotate the lever 12 to remove the absorber 13 from the cam follower 6. Then, the pallet 1 is pushed out by pressing the cam follower 6 in the traveling direction with the remaining stroke of the air cylinder 9.

[0005]

However, in the above-mentioned conventional configuration, the pallet 1 is provided with the cam follower 6 as a positioning roller, and only one portion of the cam follower 6 is clamped to correct the position of the pallet.
Poor load capacity from the other side of pallet regulation, pallet 1
Of the pallet 1 is displaced by the clearance between the guide roller 4 and the guide rail 3 on the conveyor side. Also,
Since the bracket 5 and the cam follower 6 are required for the pallet 1, there is a problem that the cost is increased.

The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a pallet conveyor pallet positioning device capable of increasing the load resistance from the opposite side of the pallet regulation and reducing the pallet cost. It is the purpose.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a pallet positioning device for a pallet conveyor according to the present invention transports the pallet on which a work is placed while guiding the pallet with guide rollers provided before and after the pallet. A pallet positioning device for a pallet conveyor capable of stopping at a predetermined position and transporting the pallet again, comprising an absorber for reducing an impact at the time of stopping the pallet, and a first lever to which the absorber is attached and rotatably supported. and parts, and a second lever portion which is rotatably supported, coupled of the first lever portion
Where the guide roller provided in front of the pallet passes
The first lever portion is rotated with respect to
A first driving means for moving a lever portion, and the second lever portion so as to clamp guide rollers provided before and after the pallet at one end portions of the absorber and the second lever portion.
And second driving means for driving

[0008]

According to the above construction, the absorber is moved to a position where the guide roller provided in front of the pallet passes, and the absorber and one end of the second lever portion clamp the guide roller provided before and after the pallet to pallet the pallet. , The pallet positioning is clamped over the length of the pallet traveling direction, thereby increasing the holding force of pallet positioning as compared with the conventional one-point clamp. Attached parts such as brackets and positioning rollers attached to the pallet are eliminated, and the pallet can be manufactured at low cost.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a top view of a pallet positioning device of a pallet conveyor according to an embodiment of the present invention, and FIG. 2 is a front view of the pallet positioning device of the pallet conveyor of FIG. 1 and 2, a guide roller 23 is provided on a pallet 21 on which a work is placed, for correcting a lateral displacement of the pallet 21 by using a guide rail 23 erected on a frame 22 constituting a base of the pallet conveyor.
24 are provided.

An absorber 25 for reducing the impact when the pallet is stopped is attached to a vertical portion of an L-shaped lever 26, and a shaft 27 is attached to a horizontal portion of the L-shaped lever 26. It is configured to be rotatable about the center. The pin 28 is fixedly supported by one end of an air cylinder 29. The drive end of the air cylinder 29 is connected to a shaft 27 via a lever 30, and the air cylinder is 29 power lever 26
To rotate the absorber 25.

Further, the pin 31 is fixed by pivotally supporting one end of an air cylinder 32.
The drive end of the pin 32 is connected to a pin 34 via a lever 33, and the pin 34 is connected to a pallet setting roller 36 via a lever 35. The lever 35 is rotatable about the pin 34 by driving the air cylinder 32. It is composed. Further, by driving the air cylinder 32, the lever 33, the pin 34 and the lever 35 transmit the power of the air cylinder 32 and the pallet 1
The pallet setting roller 36 is operated so as to clamp the guide roller 24 at the rear of the pallet.

As described above, the air cylinder 29 serving as the driving means moves the absorber 25 by rotating the lever 26 to a position where the guide roller 24 provided in front of the pallet 21 passes, and also serves as the driving means. The air cylinder 32 rotates the lever 35 and drives the absorber 25 and the pallet setting roller 36 at one end of the lever 35 to clamp the guide rollers 24 provided before and after the pallet 21. The pallet positioning device 37 is configured as described above, and the shaft 27 and the pins 28, 31, and 34 are disposed on the block 38 to form the main body of the pallet positioning device 37. The block 38 is attached to the frame 22.

FIG. 3 is a side view of a pallet conveyor having the pallet positioning device of FIG. 1, and FIG. 4 is a front view thereof. 3 and 4, reference numeral 39 denotes a transport unit,
40 is a pallet, 41 is a drive unit, and 42 is a pallet positioning device.

The operation of the pallet positioning device for a pallet conveyor configured as described above will be described below. First, the guide roller 24 is guided along the guide rail 23.
Pallets that have traveled on the conveyor while being guided by the pallet
The rotation of the lever 26 by the drive of the air cylinder 29 causes the collision of the lever 21 with the absorber 25 located at the passage point of the guide roller 24 provided in front of the pallet 21 to stop the traveling resistance while reducing the running resistance. Next, the air cylinder 32 is operated, and the lever 35 is rotated about the pin 34 to move the pallet setting roller 36 so as to clamp the guide roller 24 provided behind the pallet 21. As a result, the guide rollers 24 provided before and after the pallet 21 are clamped by the absorber 25 and the pallet setting roller 36, and the pallet 21 is positioned.

Further, when releasing the positioning of the pallet 21, the air cylinder 29 is operated to move the absorber 25 to the guide roller 24 attached to the front of the pallet 21.
Remove from Then, with the remaining stroke of the air cylinder 32, the guide roller 24 is pressed by the pallet setting roller 36 to push out the pallet 21.

Therefore, the absorber 25 is moved to a position where the guide roller 24 provided in front of the pallet 21 passes,
Pallet 21 with this absorber 25 and pallet setting roller 36
In order to position the pallet 21 by clamping the guide rollers 24 provided before and after the pallet, pallet positioning is performed by clamping two places in the pallet traveling direction, thereby increasing the holding force for pallet positioning. In addition, the conventional accessories such as the bracket 5 and the positioning roller 6 attached to the pallet 21 are no longer required, the structure is simplified, and the pallet 21 can be manufactured at low cost.
Can be manufactured.

[0017]

As described above, according to the present invention, by supporting the pallet at two places, the holding force for pallet positioning can be increased, and the load resistance of the pallet from the lateral direction can be improved. You can do it. In addition, since the positioning roller and the positioning roller mounting bracket are not required for the conventional pallet, the pallet can have a simple configuration, and the pallet can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a top view of a pallet positioning device for a pallet conveyor according to an embodiment of the present invention.

FIG. 2 is a front view of a pallet positioning device of the pallet conveyor of FIG. 1;

FIG. 3 is a side view of a pallet conveyor having the pallet positioning device of FIG. 1;

FIG. 4 is a front view of a pallet conveyor having the pallet positioning device of FIG. 1;

FIG. 5 is a top view of a conventional pallet conveyor pallet positioning device.

FIG. 6 is a front view of a pallet positioning device for the pallet conveyor of FIG. 5;

[Explanation of symbols]

 21, 40 Pallet 23 Guide rail 24 Guide roller 25 Absorber 26, 30, 33, 35 Lever 27 Shaft 29, 32 Air cylinder 34 Pin 36 Pallet setting roller 37, 42 Pallet positioning device 38 Block

Claims (1)

(57) [Scope of request for utility model registration] 1. A pallet positioning device for a pallet conveyor capable of transporting the pallet on which a work is placed, stopping at a predetermined position and guiding the pallet again while guiding the pallet with guide rollers provided before and after the pallet, An absorber for mitigating an impact when the pallet is stopped, a first lever portion rotatably supported by the absorber, and a second lever portion rotatably supported by the first; It is connected to the lever and installed in front of the pallet.
The first lever with respect to a position where the
A first drive for rotating the absorber section to move the absorber section
A pallet conveyor comprising: moving means; and second driving means for driving the second lever part so as to clamp guide rollers provided before and after the pallet at one end of the absorber and one end of the second lever part. Pallet positioning device.