JP2589530Y2 - Driving device for driving roller conveyor - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for raising a driving roller conveyor.

[0002]

2. Description of the Related Art In a conveyor line installed on a production line, a flier is provided at a location where an operator and a trolley cross the conveyor line. FIG. 5 shows an outline of a conventional device for raising a roller conveyor. 11 is provided with a number of transport rollers 6 on the upper surface of the receiving table in a horizontal direction,
Each of the transport rollers 6 is a conveyor unit that is driven to rotate in the transport direction of the work W by a drive unit 20 via a chain (not shown), and is installed on the floor surface F. At the downstream end of the conveyor unit 11, a gate unit 12 having a large number of transport rollers 6 installed on the upper surface in a horizontal direction is rotatably mounted on a shaft 19, and a conveyor unit 13 is installed downstream of the gate unit 12 to form a conveyor line. I do. The work W is transported from left to right as indicated by the arrow in the figure. Japanese Utility Model Laid-Open Publication No. 1-103613 discloses a driving roller conveyor in which a sprocket is attached to one end of a shaft of each roller, and each roller is driven by a chain.

When an operator crosses the conveyor line, as shown by an arrow in FIG.
Is lifted around the axis 19. Gate unit 12
Is rotated about 95 to 105 degrees so as to hit the stopper, so that the gate unit 12 keeps the sprung position. Thereby, the passage 10 is formed in the conveyor line. Japanese Utility Model Laid-Open Publication No. Sho 62-17615 discloses a storage and delivery table conveyor device in which a conveyor device is mounted so as to be tiltable about an axis, and the conveyor device is moved to a horizontal position and an inclined position by an actuator. .

FIGS. 6 and 7 show a conventional apparatus for raising a drive roller conveyor. FIG. 6 shows a normal state in which the work is transported, and FIG. 7 shows a state in which the work is lifted. FIG.
In each of the conveyor rollers 6 of the conveyor unit 11,
Is rotated clockwise by the chain 4 driven in the direction of the arrow by the drive unit 20 shown in FIG. 5, and the drive sprocket 16 is coaxially mounted on the support roller shaft of the chain 4. The transport roller 6 driven by the chain 24 is also provided on the gate unit 12, and the drive sprocket 18 is also mounted on the support roller shaft of the chain 24. A driving sprocket 17 is mounted on a turning shaft 19 of the gate unit 12 provided on the conveyor unit 11 side.
And the driving sprockets 17 and 18 and the driving sprockets 17 and 18, respectively. FIG.
In the state (1), the work W is conveyed from the conveyor unit 11 to the conveyor unit 13 through the gate unit 12.

When the operator crosses the conveyor line, the operator lifts the gate unit 12 around the pivot 19 as shown in FIG. The gate unit 12 is rotated by about 95 degrees to 105 degrees so as to hit the stopper, and the gate unit 12 is kept at the flip-up position. Thereby, the passage 10 is formed in the conveyor line.

[0006]

In the conventional device for raising the flies shown in FIGS. 5 to 7, the power of the conveyor unit 11 is not transmitted to the downstream side of the gate unit 12, so that the conveyor unit 13 is also shown in FIG. The drive unit 21 needs to be installed as described above, and the drive sprocket 16,
17 and 18 and chains 22 and 23 for connecting them are required, so that capital investment becomes large. Further, even when the gate unit 12 is lifted, there is a safety problem when crossing the passage because the chain and the transport roller are rotating.

[0007] The present invention solves the above-mentioned problems and requires only a small number of drive units, chains and drive sprockets. Further, when the gate unit is lifted, the chain and the conveyor of the gate unit and the conveyor unit downstream thereof are transported. It is an object of the present invention to provide a drive roller conveyer lifting device in which a roller stops and traffic can be secured.

[0008]

According to the present invention, a gate unit is installed so as to be pivotable about a shaft downstream of a drive conveyor unit provided with a transport roller driven by a chain, and a driven conveyor downstream of the gate unit is provided. A unit is installed, and the gate unit and the driven conveyor unit are each provided with a transport roller driven by a chain, and a sprocket that meshes with the own chain and is disengaged from the upstream chain is provided. This is a device for raising the driving roller conveyor.

[0009]

Normally, the chain of the driving conveyor unit and the sprocket of the gate unit are engaged to drive the transport roller of the gate unit, and the transport roller of the driven conveyor unit on the downstream side is also driven. When the gate unit is lifted around the axis, the sprocket of the gate unit comes off the chain of the drive conveyor unit, and the power from the drive conveyor unit is not transmitted to the gate unit, and the rotation of the transfer rollers of the gate unit and the driven conveyor unit is stopped. Stop.

[0010]

1 and 2 show an embodiment of the present invention. FIG. 2 shows a normal state in which a workpiece is conveyed, and FIG. 1 shows a state in which the work is lifted. In FIG. 2, each transport roller 6 of the conveyor unit 1 is rotated clockwise by a chain 4 driven in the direction of an arrow by a drive unit (not shown), and a driven roller 5 is provided on the chain 4. The gate unit 2 is rotatably mounted on the pivot 7 mounted on the upper end of the downstream side of the drive conveyor unit 1,
The gate unit 2 is also provided with a transport roller 6 driven by a chain 14. The chain 14 is supported at both ends by driven rollers 15, 25, and a sprocket 8 for power transmission is mounted on the gate unit 2, and the driven roller 15
Engage with the upper chain 14. The power transmission from the drive conveyor unit 1 to the gate unit 2 is performed by a sprocket attached to the gate unit 2 on the chain 4 on the driven roller 5 of the drive conveyor unit 1 as shown in FIG. The sprocket 8 is engaged with the chain 14 on the driven roller 15 of the gate unit 2 and is driven in the direction of the arrow.

A conveyor unit 3 is provided downstream of the gate unit 2. The conveyor unit 3 is provided with a chain supported by a driven roller 35, and a sprocket 9 meshing with the chain. The sprocket 9 is driven by the driven roller 25 of the gate unit 2 on the upstream side.
Engage with the upper chain 14. The power transmission from the gate unit 2 to the driven conveyor unit 3 is performed by a sprocket mounted on the driven conveyor unit 3 on the chain 14 on the driven roller 25 of the gate unit 2 as shown in FIG. The sprocket 9 is engaged with the chain on the driven roller 35 of the driven conveyor unit 3 and driven in the direction of the arrow. Therefore, in the state of FIG. 2, the work W is transported in the direction of the arrow, and the drive unit need only be installed on the drive conveyor unit 1, and need not be provided on the driven conveyor unit 3.

When the worker crosses the conveyor line, the gate unit 2 is lifted about the turning shaft 7 as shown in FIG. The gate unit 2 is rotated by about 95 degrees to 105 degrees as shown by a dashed line 2 'in the figure, so that the gate unit 2 keeps the flip-up position. Thereby, the passage 10 is formed in the conveyor line. When the gate unit 2 is lifted, the sprocket 8 comes off the chain 4 and the power from the drive conveyor unit 1 is not transmitted to the gate unit 2, and the rotation of the transport rollers 6 of the gate unit 2 and the driven conveyor unit 3 is stopped. There is no danger of crossing the passage 10.

In the case of a large gate unit, an appropriate turning mechanism is provided around the shaft 7, and the power is used to raise the spring. As described in Japanese Utility Model Application Laid-open No. Sho 62-17615, an actuator such as an air cylinder may be used to move the gate unit from the horizontal position to the lifting position, and hold the gate unit at that position.

As shown in FIG. 3, the centers of the roller 5 and the sprocket 8 are set on the same horizontal plane, while the sprocket of the driven conveyor unit 3 is moved from the center of the driven roller 25 of the gate unit 2 as shown in FIG. Since the center of 9 is set downward by D, the gate unit 2
When turning around the shaft 7 and rising, the chain 14 and the sprocket 9 are separated smoothly, and also when the gate unit 2 returns to the horizontal position,
The engagement between the two is performed without any trouble.

[0015]

According to the present invention, the number of chains and drive sprockets provided in the drive unit and the gate unit can be reduced, and equipment investment can be reduced. In addition, when a conveyor line is installed, the downstream conveyor unit is provided with a drive unit. Since there is no need, the gate unit can be installed at an arbitrary place, and the line layout design becomes easy. Also, when the gate unit is lifted, the transport rollers and the like of the gate unit and the downstream conveyor unit are stopped, so that safety when crossing the conveyor line can be achieved.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of the present invention when a fly is lifted.

FIG. 2 is a front view of the normal state of FIG. 1;

FIG. 3 is an enlarged view of a main part of FIG. 1;

FIG. 4 is an enlarged view of another main part of FIG. 1;

FIG. 5 is a schematic front view of a conventional device for raising a roller conveyor.

FIG. 6 is a front view of a conventional roller conveyer lifting device.

7 is a front view of FIG. 6 at the time of lifting.

[Explanation of symbols]

1 Drive conveyor unit 2 Gate unit
3 driven conveyor unit 4,14 chain 5,15,25,35 driven roller 6 transport roller 7 axis 8,9 sprocket
10 passage

Claims (1)

(57) [Scope of request for utility model registration] 1. A gate unit is installed on a downstream side of a drive conveyor unit provided with a conveying roller driven by a chain so as to be pivotable about an axis, and a driven conveyor unit is installed on a downstream side of the gate unit. And a driven roller unit, wherein each of the driven conveyor units is provided with a transport roller driven by a chain, and a sprocket which meshes with the own chain and is engaged with and disengaged from the upstream chain is provided. .