JPH1151814A - Apparatus for inspecting rotation interruption of looped object - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable inspection of looped objects such as small-diameter belts, etc. SOLUTION: A driving roller 1 is mounted via a bearing 6 to a casing 5 at the driving side, and a driven roller 15 is mounted via a bearing 19 to a casing 18 at the driven side. The casing 18 is provided with an air cylinder 20 and made movable. The driving roller 1 and driven roller 15 are set so that axes are parallel to each other, and directed oppositely. Inspection object mount parts 3, 17 at one end parts of the rollers 1, 15 are located on the same line. When the casing 18 at the driven side approaches maximum to the casing 5 at the driving side, an outer circumferential face of the driven roller 15 comes in touch with an outer circumferential face of the driving roller 1. Therefore, a rotation interruption can be inspected even for a looped object 25 such as a small-diameter belt, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for inspecting the rotation of an annular product, and more particularly to an apparatus for inspecting the rotation of an annular product, which is effective for inspecting the rotation of a small-diameter belt or the like.

[0002]

2. Description of the Related Art Conventionally, in order to inspect whether or not an annular belt or the like has lost rotation, an apparatus for inspecting rotation has been used as shown in FIG. That is, the inspection apparatus includes a drive roller 41 rotatably mounted on a drive-side casing 45 via bearings 46, 46;
1 and a driven side casing 58
Driven roller 55 rotatably mounted on bearings 59, 59 via a driven member, and driven-side casing 58 (driven roller 55)
And an air cylinder 60 as a moving means for moving the air.

[0003] An annular article 65 such as a belt, which is an inspection article, is placed between an inspection article attachment section 43 provided at one end of the driving roller 41 and an inspection article attachment section 57 provided at one end of the driven roller 55. The driven roller 55 is moved by operating the air cylinder 60 so that the driven roller 55
The tension between the shaft of the driven roller 55 and the driven roller 55 is extended to apply tension to the annular product 65, and in this state, the motor 48 is driven to rotate the drive roller 41, and the rotational torque of the drive roller 41 is driven via the annular product 65. The light is transmitted to the roller 55. And
The presence or absence of the rotation stop of the annular article 65 is detected by an optical sensor (not shown).

[0004] However, in the conventional device for inspecting the rotation of an annular product having the above-mentioned structure, the driving roller 41 is not provided.
And the driven roller 55 are oriented in the same direction, so that even when the rollers 41 and 55
Since space is taken up by the bearings 46 and 59 supporting the roller 5, the distance between the shafts of the rollers 41 and 55 cannot be reduced. For this reason, it is not possible to inspect the annular product such as a small-diameter belt for a rotation failure. Further, since the optical sensor is used to detect the presence or absence of the rotation failure, if the location of the rotation failure falls outside the detection range of the optical sensor, the detection becomes impossible.

The present invention has been made to solve the above-mentioned problems of the prior art. Even in the case of a ring-shaped article such as a small-diameter belt, it is possible to easily inspect the end of rotation and to make it possible to easily inspect the rotation. Even if any part of the
It is an object of the present invention to provide a device for inspecting the rotation of an annular product, which can surely detect the rotation.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a drive shaft and a driven shaft which is provided in parallel with the drive shaft and is movable in a direction perpendicular to the axis of the drive shaft. And an annular product rotation inspection device for inspecting whether or not the annular product has been rotated by rotating the annular product mounted between one ends of both shafts while applying tension. In the above, the drive shaft and the driven shaft are provided in such a manner that the drive shaft and the driven shaft are provided in opposite directions to each other and one end thereof is located on the same line.

[0007]

According to the present invention, the distance between the two shafts can be reduced until the outer peripheral surface of the one end of the driven shaft contacts the outer peripheral surface of the one end of the drive shaft. Therefore, it is possible to mount a small-diameter belt between one ends of both shafts.

[0008]

Embodiments of the present invention shown in the drawings will be described below. FIG. 1 shows an embodiment of an apparatus for inspecting the rotation of an annular product according to the present invention. The apparatus for inspecting the rotation of an annular article according to this embodiment comprises a driving roller 1 and a driving roller 1. A driving source 8, a driven roller 15, and a moving unit 2 for moving the driven roller 15.
It has zero.

The drive roller 1 is rotatably mounted on a drive-side casing 5 via bearings 6, 6.
A rod-shaped main body portion 2 supported by a pair of bearings 6 mounted on the drive-side casing 5, and a rod-shaped inspection product mounting portion 3 having a diameter smaller than that of the main body portion 2 integrally provided at one end of the main body portion 2.
And a pulley mounting portion 4 having a rod shape smaller in diameter than the main body 2 provided integrally with the other end of the main body 2.
In this case, the main body 2 is located in the drive side casing 5,
The inspection product mounting part 3 and the pulley mounting part 4 are located outside the drive side casing 5, and the pulley 7 is mounted on the pulley mounting part 4.

A motor 8 as a drive source is mounted in the drive side casing 5. A pulley 10 is mounted on the drive shaft 9 of the motor 8, and an annular power transmission belt 11 is stretched between the pulley 10 and the pulley 7 of the drive roller 1.

The driven roller 15 is driven by a driven side casing 18.
And a rod-shaped main body 16 supported by a pair of bearings 19, 19 mounted on the driven casing 18, and a main body 1.
6 comprises a bar-shaped inspection product mounting portion 17 having a smaller diameter than the main body portion 16 provided integrally with one end.

The drive side casing 5 and the driven side casing 1
8, the axis of the driving roller 1 and the axis of the driven roller 15 are parallel to each other, the directions of the driving roller 1 and the driven roller 15 are opposite to each other, and the inspection product mounting portions 3 and 17 at one end are on the same line. It is a positional relationship such that it is located at.

The distal end of a rod 21 of an air cylinder 20, which is a moving means, is connected to the driven side casing 18,
The driven casing 18 is controlled by the air cylinder 20.
(The driven roller 15) is a driving roller 1 (the driven roller 1).
It can be moved in a direction perpendicular to the axis of 5).

An annular article 25 such as a belt, which is an inspection article, is stretched between the inspection article mounting section 3 of the driving roller 1 and the inspection article mounting section 17 of the driven roller 15.
In this case, the inspection product mounting portions 3, 17 of the rollers 1, 15
Are accessible until the outer peripheral surfaces contact each other.

In the vicinity of the casings 5 and 18, there is provided an off-rotation detecting means 26. End of rotation detecting means 26
Are an air cylinder 27 having a rod 28 which can extend and retract in the direction of an annular product 25 bridged between the inspection product mounting portions 3 and 17 of the rollers 1 and 15, and a protruding end auto switch for detecting the protruding end of the rod 28. 29, and a return end auto switch 30 for detecting the return end of the rod 28.

If the annular product 25 is not broken, as shown in FIG.
8 stops in the middle of the stroke, the protruding end auto switch 29 is turned off, and when the annular product 25 is cut, the rod 28 of the air cylinder 27 protrudes to the full stroke as shown in FIG. The protruding end auto switch 29 is turned ON. Therefore, by detecting ON and OFF of the protruding end auto switch 29, it is possible to detect whether or not the annular product 25 is cut.

In order to inspect the rotation of the annular article such as the belt using the apparatus for inspecting the rotation of the annular article according to this embodiment, first, the inspection of both rollers 1 and 15 is performed. An annular product 25 such as a belt is stretched between the mounting portions 3 and 17, the air cylinder 20 is operated to move the driven casing 18 (the driven roller 15), and tension is applied to the annular product 25.

In this state, the motor 8 is driven to rotate the drive roller 1, and the rotational torque of the drive roller 1 is transmitted to the driven roller 15 via the annular member 25, and the air cylinder 27 Is operated to cause the rod 28 to protrude, and the tip of the rod 28 to contact the annular product 25.

When the annular article 25 is broken, the rod 28 of the air cylinder 27 protrudes to the full stroke, and the protruding end auto switch 29 is turned on. If the annular product 25 is not cut, the rod 28 of the air cylinder 27 stops in the middle of the stroke, and the protruding end auto switch 29 is turned off. Therefore, by detecting ON and OFF of the protruding end auto switch 29, it is possible to detect whether or not the rotation of the annular product 25 has been stopped.

In the apparatus for inspecting the rotation of a ring-shaped article according to this embodiment constructed as described above, the driving roller 1
And the driven roller 15 are provided in opposite directions, so that the distance between the axes of the rollers 1 and 15 can be reduced until the outer peripheral surfaces of the inspection product mounting portions 3 and 17 of the rollers 1 and 15 come into contact with each other. You can do it. Therefore, it is possible to inspect the end of rotation even with an annular product 25 such as a small-diameter belt. Further, since the presence or absence of the rotation interruption of the annular article 25 is detected based on the amount of protrusion of the rod 28 of the air cylinder 27, it is possible to detect the position of the rotation interruption at any position.

The drive-side casing 5 of the drive roller 1
The driven side casing 18 of the driven roller 15 may be configured as shown in FIG. That is, the driven side casing 18 is located in the box 31 whose front portion is open,
Up and down.
Attach the cylinder 20 which is a moving means on the upper part of 1
The distal end of the rod (not shown) is
The driven side casing 18 (the driven roller 15) can be moved in the vertical direction by the operation of the cylinder 20. The drive-side casing 5 is positioned on the lid 33 at the opening of the box 31, and the lid 33 is attached to the opening of the box 31 so as to be openable and closable. When the lid 33 is closed, the axis of the drive roller 1 and the driven roller 15 Are parallel to each other. And
With such a configuration, the overall size can be reduced.

[0022]

As described above, according to the present invention, the distance between the shafts of the driving roller and the driven roller can be reduced until the outer peripheral surfaces of the inspection object mounting portions of both rollers come into contact with each other. Become. Therefore, even in the case of a ring-shaped product such as a small-diameter belt, an excellent effect such as a sufficient inspection for a lack of rotation can be obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an embodiment of an apparatus for inspecting the rotation of an annular product according to the present invention;

FIG. 2 is an explanatory diagram of an out-of-rotation detecting means of the one shown in FIG. 1, showing a case where no out-of-rotation occurs;

FIG. 3 is an explanatory diagram of an out-of-rotation detecting means of the one shown in FIG. 1, showing a case in which an out-of-rotation occurs.

FIG. 4 is an explanatory view showing a modification of the device for inspecting the rotation of an annular product according to the present invention;

FIG. 5 is a cross-sectional view showing one example of a conventional device for inspecting the rotation of an annular product.

[Explanation of symbols]

 1, 41 drive roller 2, 16 body part 3, 17, 43, 57 inspection product mounting part 4, pulley mounting part 5, 45 drive side casing 6, 19, 46, 59 Bearings 7, 10 Pulleys 8, 48 Driving source (motor) 9 Driving shaft 11 Power transmission belt 15, 55 Driven rollers 18, 58 Driven casing 20, 60 Moving means (Air cylinder) 21, 28 Rod 25, 65 Annular product 26 Rotational end detecting means 27 Air cylinder 29 Protruding end auto switch 30 Return end auto switch 31 Box 32 Support shaft 33 Lid

Claims (1)

[Claims] A drive shaft, and a driven shaft provided in parallel with the drive shaft and movable in a direction perpendicular to the axis of the drive shaft, apply tension to an annular product mounted between one ends of both shafts. By rotating in the added state, in the device for inspecting the rotation of the annular product, which is configured to inspect the presence or absence of the rotation of the annular product, the drive shaft and the driven shaft are oppositely oriented, and An end-of-rotation inspection device for an annular article, wherein one end is located on the same line.