JPS6015314A - Automatic aligning device for elastic ring - Google Patents

Abstract

PURPOSE:To automatically take out a large number of elastic ring in order from the tips of plural rotary shafts while aligning them by providing said shafts into an annular shape and turning them while applying tension to said elastic rings hung over the rotary shafts. CONSTITUTION:Two rotary shafts 1, 2 are respectively rotatably mounted in ring-shape on a device body 3 substantially horizontally. But, the center line O2 of the lower side rotary shaft 2 is inclined upward by an angle theta such that the tip of the former center comes near the upper side rotary shaft 1 with respect to a shaft O parallel to the shaft center O1 of the upper side rotary shaft 1. And, the upper rotary shaft 1 is connected to a motor 4 to serve as a drving side, whose turning force is then transmitted to the lower side rotary shaft 2 via an O ring W. Further, the lower side rotary shaft 2 is made to be free to be connected/disconnected to/from and moved to/from the upper rotary shaft 1 via a movable means 5. Hereby, it is possible by turning the upper rotary shaft 1, to sequentially advance a bundle of the O rings W hung over the two rotary shafts 1, 2 one by one while automatically aligning them.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic elastic ring aligning device that feeds annular bodies made of elastic material one by one while aligning them in a constant posture.

For example, in order to automatically assemble an O-ring as an elastic ring to a member, the O-ring should be held in a fixed position.
It is necessary to supply the parts to be assembled one by one. If the material of the O-ring is relatively hard, or if the diameter is relatively small and the ring is too thick, a parts feeder may be used, or the O-ring may have an inner diameter that corresponds to the outer diameter of the O-ring. It is possible to align the O-rings in a constant manner and convey them one by one using a belt conveyor with grooves formed therein.

However, in the case of a soft annular body similar to a rubber ring, such as when the hardness of the O-ring material is low and the O-ring has a large diameter or a thin O-ring, this can be automatically fixed using the above-mentioned method. It was difficult to line them up, and the work had to be done manually.

The purpose of the present invention is to automatically align a soft annular body in a constant posture and sequentially supply it to a predetermined position, such as when a thin elastic ring is used. In this case, a plurality of rotary shafts are rotatably provided in a ring shape, and a moving means for moving at least one of the plurality of rotary shafts toward and away from the other rotary shafts is provided in the main body of the device. , a rotating means for rotating the elastic ring while applying tension to the rotating shaft is connected to at least one of the plurality of rotating shafts, and the elastic ring is attached to the main body of the device. It is an automatic alignment device.

The present invention will be explained below based on the drawings. FIG. 1 is a diagram showing an automatic alignment device for elastic rings according to an embodiment of the present invention.

Two rotating shafts 1 and 2 are respectively erected in the main body 3 of the apparatus and are rotatably mounted in an annular shape.

The two rotating shafts 1 and 2 are approximately horizontal J5, and the center 02 of the non-side rotating shaft 2 is the axis 0 of the upper rotating shaft 1.
Rotation IIMb with the tip on the upper side with respect to the axis O parallel to 1
It is tilted in two directions at an angle θ'' so as to approach 1.

The upper rotating shaft 1 is connected to the motor 4 provided in the main body 3 of the device and becomes the driving side.The rotating shaft 1 on the driving side rotates while applying tension to the O-ring W by rotating the lower rotating shaft 1. This is the rotation axis on the driven side of the transmission. This driven side rotation 'I'l112i can be moved toward and away from the driving side rotation 111 by a moving means 5 provided in the main body 3 of the apparatus. This moving means 5 is formed in a bracket 1-6, with a bracket 6 from which the driven side rotation @2 is removed, and a pole 1-7 that supports the bracket 1-6 and is screwed to the device main body 3. There is a long hole 8 through which 7 passes through pole 1, and bolt 7 connects bracket 1-6 to device main 17.
The rotary shaft 2 on the driven side is movable to the rotary shaft 1 on the driving side while being fixed at t3.

Therefore, in order to align the O-rings W using an automatic alignment device according to FIG. A large number of O-rings are manually connected to two rotating shafts 1,
2.Next, when the motor 4 is driven with the two rotations @1 and 2 at a predetermined interval, the rotating shaft 1 on the driving side
The rotation is transmitted to the rotating shaft 2 on the driven side via the O-ring W. At this time, the outer O of the bundled O-rings W
Ring culm, strong tension will be given, all ○
The rings are lined up in a row. As the O-ring W rotates, the rotation M2 on the driven side is inclined at an angle θ, so that tension is applied toward the tips of both shafts 1 and 2, and the O-rings move forward while being automatically aligned one by one. It happens.

○In order to automatically detect that the ring W has come to the ends J: of the two rotating shafts 1.2, a support rod 10 with a phototube 9 attached to the right end is attached to the device main body 3 (pushed).

The O-rings W that have been advanced to the tips of both rotating shafts 1 and 2 and aligned can be taken out one by one and automatically assembled into a wave phase (not shown) (= J-i type part).

FIG. 2 is a J diagram showing another embodiment of the present invention.
3, the same l'ff number is placed in the same part as the embodiment shown in FIG. 1.

In this embodiment, there are two rotating shafts 1 and 2 as in the forward-moving embodiment, but each rotating shaft 1°2 is vertically vertical to the main body 3 of the mount. The rotation 11i [112
With respect to the axis O which is parallel to the axis 01 of the right rotation shaft 1, the axis 02 is inclined to the right by an angle θ such that the tip approaches the right rotation 1i1111.

The rotating shaft 1 on the right side is a pulley 1 connected to a motor not shown.
1 and gears 12 and 13 to which the rotation of the motor is transmitted.
The driven-side rotating shaft 2 rotated by Il 1 is composed of a branch 2a fixed to the slider 14, and a rotating body 2) rotatably fitted on the outside of this column 2a. A coil spring 16 is installed on the outside of the poles 1 to 15 that are screwed to the device main body 3.
An elastic force is applied to the rotation 111112 on the driven side in the J direction away from the rotating shaft 1 on the driving side. The distance between the two rotating shafts 1 and 2 (31 is achieved by adjusting the position of the neck 1-19 in contact with the slider 14. In this embodiment, (
j, Manually rotate the slider 18 times to rotate the driven side 1
Bring i+l+2 close to the rotating shaft 1 on the drive side, and in a closed state, hang a large number of O-rings W on the outside of both rotating shafts.

Next, when the rotating shaft 1 on the drive side is rotated, the ○ ring W
While being aligned, they move upward against their own weight and are taken out one by one starting from the tip.

In each of the above embodiments, the rotating shaft 2 on the driven side is tilted so that its tip approaches the rotating shaft 1 on the driving side, but as both rotating shafts 1 and 2 rotate, O If the ring W is to move forward toward the tip, either the driven-side rotating shaft 2 or the driving-side rotating shaft 1 may be tilted. It is also possible to advance the O-ring by slightly tapering at least one of the rotating shafts.

As described above, according to the present invention, a plurality of rotary shafts are rotatably provided in an annular shape, and a moving means for moving at least one of the plurality of rotary shafts toward and away from the other rotary shafts is provided. Mounted on the main body and on the rotating shaft! ! ) (Since the device main body is provided with a rotating means for rotating the stretched elastic ring while applying tension to at least one of the plurality of rotating shafts, many of the elastic rings are bundled and overlapped. By extending the elastic ring around the outside of the rotating shaft,
The elastic rings are automatically aligned and taken out in sequence from the tip of the rotating shaft, and the elastic rings can be sequentially supplied to an adjacent automatic assembly device or the like.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing one embodiment of the automatic alignment device of the present invention, and FIG. 2 is a cross-sectional view showing another embodiment of the present invention. 1.2...Rotating shaft, 3...Device main body, 4...Motor, 5...Moving means, 14...Slider, W...
O-ring as an elastic ring. Patent applicant Nissan Motor Co., Ltd. Figure 1 Figure 2

Claims (1)

[Claims] (1) A plurality of rotary shafts are rotatably provided in an annular shape, and a device main body is provided with a moving means for moving at least one of the plurality of rotary shafts toward and away from the other rotary shafts; An automatic alignment device for elastic rings, wherein the device main body is provided with a rotating means for rotating the elastic ring while applying tension to the elastic ring, which is connected to at least one of the plurality of rotating shafts. (2) At least one of the plurality of rotation shafts is tilted with respect to the axis of the other rotation shaft so that its tip approaches the other rotation shaft, and is 01 erected on the device main body. An automatic alignment device for elastic rings according to claim 1.