JPH08198433A - Feeder for elastic ring member - Google Patents

Abstract

PURPOSE: To eccentrically rotate a shaft so as to surely feed elastic ring members one by one by means of a spiral groove on the outer circumference face of the shaft. CONSTITUTION: A mounting member 8 is installed integrally rotationally in a rotary shaft in a pulse motor 7 inclined to the vertical line at 45 deg., and supporting members 11 are installed in the first position S1 and the second position S2. A shaft 12 is arranged in the position eccentric from a rotary shaft 11a by the preset distance, and in the shaft 12, a taper face part 13 tapering off from the base end part toward the point end part is formed, while a cylindrical column part 14, in which a herical groove 15 is formed on the outer circumference face, is formed at the tip of the taper face part 13. A bundle of elastic ring members 16 are fed to the shaft 12 in the first position S1, and the elastic ring members 16 are received one by one from the tip of the shaft 12 in the second position S2 so as to be fed to a bag part 33 in a receiving member 28. The elastic ring member 16 is led to a discharge port 32 so as to be held, and then, taken out by means of a conveying means 34 so as to be transferred to the predetermined position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeding device for feeding a bundle of elastic ring members such as an annular seal member separately from the tip of a cantilevered shaft.

[0002]

2. Description of the Related Art Conventionally, as a device for supplying such an elastic ring member, as shown in, for example, Japanese Patent Application No. 62-126020, a cantilevered shaft having a spiral groove formed on its outer peripheral surface is used. It has been known. As shown in FIG. 8, this shaft has a spiral groove b on the outer peripheral surface of the shaft a.
The spiral groove b is formed so that the width of the spiral groove b is gradually narrowed from the base end (right end in the figure) of the shaft a to the tip (left end in the figure). In addition, the bundle of the elastic ring members c supplied to the shaft a is separated by setting different inclinations on the shaft a itself when the elastic ring members c are supplied and when the elastic ring members c are separated, and by utilizing the forward and reverse rotations of the shaft a. The elastic ring members c are separated from the tip one by one.

[0003]

However, in the above-mentioned conventional device, the spiral groove b on the outer peripheral surface of the shaft a is formed only by the rotation and inclination of the shaft a about the axis thereof.
In reality, the elastic ring members c cannot be fully disengaged without being entangled one by one because they are merely loosened while the bundle of Nos.

The present invention has been made in view of the above points, and an object of the present invention is to eccentrically rotate a shaft having a spiral groove on the outer peripheral surface thereof so that the elastic ring member is formed in the spiral groove on the outer peripheral surface of the shaft. The bundle is sufficiently separated so that the elastic ring members can be surely supplied one by one from the tip of the shaft.

[0005]

In order to achieve the above-mentioned object, the invention according to claim 1 comprises a bundle of elastic ring members
As a supply device for separating and supplying elastic ring members one by one, a shaft having spiral grooves formed on the outer peripheral surface for sending out the elastic members one by one, and a shaft eccentric to the shaft horizontally and a predetermined distance from the rotating shaft. A supporting member that supports the supporting member at a predetermined position, a driving unit that rotationally drives the supporting member around a rotation axis, and a receiving member that receives the elastic ring member that is fed from the tip of the shaft when the driving unit operates. To do.

According to a second aspect of the invention, in the apparatus for supplying an elastic ring member according to the first aspect, there is further provided a moving means for moving the supporting member between the first position and the second position. Then, in the first position, the support member supports the shaft in a vertical state, and the bundle of elastic ring members is arranged on the outer periphery of the shaft, and in the second position, the shaft is supported in a horizontal state. Then, the elastic ring members are sent out one by one from the shaft.

According to a third aspect of the invention, in the apparatus for supplying an elastic ring member according to the second aspect, the moving means comprises a mounting member for mounting the supporting member and a motor for rotating the mounting member. The mounting member is inclined by 45 ° with respect to a vertical line, and a pair of mounting surface portions that are continuously provided at both ends of the inclined surface portion and the rotation shaft of the motor is connected to the center portion and that are opened at right angles to each other. Consists of. Also,
The supporting member is attached to each of the mounting surface portions so as to be rotatable about the rotation axis of the supporting member.

According to a fourth aspect of the invention, in the apparatus for supplying an elastic ring member according to the second aspect, the drive means is attached to a motor and a rotary shaft of the motor, and is arranged at the second position. A connecting member connectable to the supporting member so as to transmit the rotational force of the motor, and the motor and the connecting member between the connecting position where the connecting member is connected to the supporting member and the retracted position separated from the supporting member. It is composed of an actuator that is moved by.

According to a fifth aspect of the invention, in the apparatus for supplying an elastic ring member according to the first aspect, the shaft has a tapered surface portion whose diameter gradually decreases from the base end portion toward the distal end side, and the tapered surface portion The columnar portion is provided at the tip, and the spiral groove is formed only on the outer peripheral surface of the columnar portion.

According to a sixth aspect of the invention, in the apparatus for supplying an elastic ring member according to the first aspect, the receiving member is provided so as to be spaced apart from the tip of the shaft and to extend in the up-down direction so as to face each other, and the upper end to the lower end. A side plate formed so that the width becomes gradually narrower toward the side, a flange provided on the peripheral edge of the side plate, and a bag portion is formed in the lower portion of the side plate in cooperation with the side plate and the flange. And a receiving plate that receives the elastic ring member that falls from above.

According to a seventh aspect of the present invention, in the device for supplying an elastic ring member according to the sixth aspect, a take-out port for exposing a part of the elastic ring is formed in the bag portion of the receiving member, and the take-out is performed. The elastic ring member is taken out from the mouth and is further configured to be transported by a transporting unit.

[0012]

With the above construction, in the invention according to claim 1,
A spiral groove is formed on the outer peripheral surface of the shaft, and the shaft is supported at a portion eccentric from the rotation axis of the support member by a predetermined distance,
When the supporting member is rotated by the driving means, the supporting member is eccentrically rotated, so that the bundle of elastic ring members is largely moved by receiving the centrifugal force, and is reliably separated from each other along the spiral groove, one by one from the tip of the shaft. Sent to.

According to the second aspect of the invention, the bundle of elastic ring members is supplied to the shaft vertically supported at the first position, and the shaft is rotated to the receiving member side by the moving means at the second position. The elastic ring members are fed separately from the tip of the shaft at that position,
When feeding the bundle of elastic ring members at the first position,
All that is required is to drop the bundle of elastic ring members from above the shaft and place them on the outer circumference of the shaft, and the work can be performed easily and quickly.

According to the third aspect of the invention, the support members are attached to the pair of attachment surface portions of the attachment members respectively located at the first position and the second position, and the attachment members are rotated by the motor to rotate the rotary shaft. By rotating each 180 ° around, the bundle of elastic ring members can be constantly supplied at the first position, and the elastic ring member can be separated from the shaft at the second position, respectively, thereby achieving highly efficient continuous operation. It becomes possible to drive.

In the invention according to claim 4, only when the support member is arranged at the second position, the motor of the drive means is advanced from the retracted position by the operation of the actuator, and the support member is connected to the support member via the connecting member. And the support member is rotated by the motor. Therefore, it is not necessary to move the drive unit integrally with the support member when moving the support member between the first position and the second position by the moving unit,
Therefore, the driving means may be small.

According to the fifth aspect of the present invention, since the bundle of elastic ring members is supplied to the tapered surface portion of the shaft and the shaft rotates eccentrically, the separating action by the centrifugal force and the separating action by the tapered surface work, and thus the elastic ring. The bundle of members is more reliably separated, and the elastic ring members are fed one by one from the tip of the shaft through the spiral groove.

In the invention according to claim 6, since the elastic ring member fed from the tip of the shaft collides with the side plate of the receiving member and is guided to the lower bag portion by the side plate and the flange, the elastic ring member is It does not jump out of the receiving member and is securely held in the bag portion of the receiving member.

According to the seventh aspect of the present invention, since the elastic ring members held in the takeout opening at the lower end of the receiving member are successively taken out from the takeout opening by the carrying means and carried, the timing between the elastic ring members separating from the shaft By matching the timing of taking out the elastic ring member by the conveying means and the elastic ring member in the bag portion, the elastic ring member can be surely conveyed without overflowing.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a device for supplying an elastic ring member according to an embodiment of the present invention, in which 1 is a fixed base extending horizontally from an upper part of a wall 2 which is a fixed side. 1 has an upper fixing member 3 and a lower fixing member 4 which are separated from each other by a predetermined distance. An inclined member 5 extending in a direction inclined by 45 ° clockwise with respect to the fixed base 1 is attached to the lower surface (lower fixed member 4) of the fixed base 1 at the front end of the inclined member 5. Is provided with a moving means 6.

The moving means 6 includes, for example, a pulse motor 7 attached to the tip of the tilting member 5, and an attaching member 8 whose center portion is connected to the tip of a rotary shaft 7a of the pulse motor 7 so as to rotate integrally. The mounting member 8 has a rotating shaft 7a of the pulse motor 7 when the pulse motor 7 rotates.
It is provided so as to rotate around by 180 °. The mounting member 8 is inclined 45 ° clockwise with respect to the vertical line and is connected to the rotary shaft 7a of the pulse motor 7 at a right angle. The inclined surface 9 is connected to both ends of the inclined surface 9 and is perpendicular to each other. It is composed of a pair of mounting surface portions 10 and 10 that open legs, and each mounting surface portion 10 is provided with a mounting hole 10a, and the mounting hole 10a has a disc-like shape as shown in FIG. The rotation shaft 11a of the support member 11 is rotatably inserted, and thus the support member 11 is rotatably attached to each mounting surface portion 10 about the rotation shaft 11a.

On the support member 11, the rotary shaft 11 is provided at a portion eccentric from the rotary shaft 11a of the support member 11 by a predetermined distance.
A shaft 12 extending in a direction parallel to a is connected. As shown in enlarged detail in FIG. 5, the shaft 12 includes a tapered surface portion 13 having a diameter that gradually decreases from the base end portion toward the distal end side, and a cylindrical portion 14 provided at the distal end of the tapered surface portion 13. A spiral groove 15 is formed on the outer peripheral surface of the cylindrical portion 14.

Here, the mounting surface portion 10 of the mounting member 8 is positioned in a horizontal state, and the support member 11 on the mounting surface portion 10 is located.
Is a first position S1 for arranging the bundle of elastic ring members 16 on the outer periphery of the shaft 12 in a vertical (vertical) state, and the mounting surface portion 10 of the mounting member 8 is vertical. The second position S2 where the support members 11 on the mounting surface portion 10 support the shafts 12 in a horizontal state is one in which the elastic ring members 16 are fed from the shaft 12 one by one.

On the fixed base 1, an elastic ring member for appropriately dropping a bundle of elastic ring members 16 such as a sealing material from above the shaft 12 supported by the support member 11 located at the first position S1. A supply means 17 is arranged. The elastic ring member supply means 17 is the fixed base 1
A cylindrical storage part 18 mounted on the lower fixing member 4 of the upper part and projecting an upper part from the upper fixing member 3;
A pair of upper stoppers 1 placed on the upper side so as to face each other
9 and 19 and a pair of lower stoppers 20 and 20 placed on the lower fixing member 4 so as to face each other. The upper and lower stoppers 19 and 20 are, as shown in FIG. Rectangular opening / closing member 2 at the end of the rod
1 is attached. , The stoppers 19, 19, 20, 20 at the height positions close to the upper and lower fixing members 1a, 1b of the outer peripheral surface of the storage portion 18, respectively.
A pair of gaps 18a for inserting the opening / closing members 21 inward are formed so as to face each other and extend in the circumferential direction. A pair of upper stoppers 1 on the upper fixing member 3
9, 19 and the lower stopper 20 on the lower fixing member 4,
The opening / closing members 21, ... Of 20 are respectively inserted inward through the gaps 18a to hold a bundle of elastic ring members 16 of a predetermined amount on the opening / closing members 21 ,. The bundle of elastic ring members 16 is dropped by pulling it out of the storage portion 18. Further, the opening / closing member 2 for the two pairs of stoppers 19, 19, 20, 20 described above.
The timing of moving 1, ... is adjusted to move the bundle of elastic ring members 16 from the upper surface of the upper fixing member 3 to the lower fixing member 4,
It is designed to be sequentially supplied to the shaft 12.

Further, 23 is a drive means for rotating the support member 11 located at the second position S2 around its rotation shaft 11a, and the drive means 23 is provided on the rotation shaft 11a of the support member 11. Mounting surface 1 as shown in FIG.
The recessed connecting member 24 having a cross-shaped recess 24a formed on the back side of 0, the DC motor 26, and the rotary shaft 26a of the DC motor 26 are attached to the cross-shaped recess 24a of the recessed connecting member 24. The convex type connecting member 25 which can be connected so that the cross-shaped projection 25a is fitted to transmit the rotational force of the motor, the DC motor 26 and the convex type connecting member 25,
The convex connecting member 25 is composed of an actuator 27 such as a cylinder for moving between the connecting position where the convex connecting member 25 is connected to the concave connecting member 24 and the retracted position separated from the concave connecting member 24. Installed on. The drive means 23 and the support member 11 arranged at the second position S2 are connected to each other, and as shown in FIGS. 5 and 6, the shaft 12 is eccentrically rotated, so that the elastic ring member 16 is rotated. Centrifugal force disperses the taper surface portion 12 of the shaft 12 and guides them one by one to the spiral groove 15 and sends them out from the tip of the shaft 12. The shaft 1
2 The elastic ring member 16 sent from the tip end portion is received by the receiving member 28 arranged on the tip end side of the shaft 12.

As shown in FIG. 7, the receiving member 28 is provided so as to be separated from the tip of the shaft 12 and to extend in the up-down direction so as to face each other, and the width thereof becomes gradually narrower from the upper end to the lower end. In addition, the upper part that receives the elastic ring member 16 is slightly inclined with respect to the vertical axis (see FIG.
Then, a side plate 29 that tilts counterclockwise), a flange 30 provided on substantially the entire peripheral edge of the side plate 29, and a bag portion 33 in the lower portion of the side plate 29 in cooperation with the side plate 29 and the flange 30.
And a receiving plate 31 for receiving the elastic ring member 16 that falls from above in the bag portion 33, and a part of the elastic ring member 16 is exposed in the bag portion 33 of the receiving member 28. A mouth 32 is formed.

The elastic ring member 16 exposed from the taking-out port 32 is taken out by the carrying means 34 arranged below the receiving member 28 and carried to a predetermined position. The carrying means 34 includes a conveyor 35 arranged at a predetermined distance from the receiving member 28, a lifting cylinder 37 mounted on the carrying member 38, and the carrying member 38 as the receiving member 28.
A transport cylinder 36 that moves between the lower origin position S3 and the lower portion of the conveyor 35 is provided, and when the transport member 38 passes below the receiving member 28, the rod of the lifting cylinder 37 moves upward and is elastic. When the ring member 16 is hooked and the conveying member 38 arrives below the conveyor 35, the rod 37a of the lifting cylinder 37 descends to mount the elastic ring member 16 on the conveyor 35, and the rod 37a of the lifting cylinder 37. While the lowered state is maintained, the conveying member 36 is operated to return the conveying member 38 to the origin position S3 below the receiving member 28.

Next, the operation of the elastic ring member supply device of this embodiment will be described.

The storage portion 18 of the elastic ring member supply means 17
First, the bundle of elastic ring members 16 supplied to the
The opening / closing member 21 of the pair of upper stoppers 19 and 19 and the opening / closing member 21 of the pair of lower stoppers 20 and 20 are opened / closed to be temporarily placed on the upper surfaces thereof, and then vertically below the storage unit 18. Is supplied to the shaft 12 supported by. The bundle of elastic ring members 16 supplied to the shaft 12 is rotated by 180 ° about the rotation shaft 7a of the pulse motor 7 by the operation of the pulse motor 7, so that the support member 11 is rotated.
Is moved from the first position S1 to the second position S2 so that the shaft 12 is supported horizontally at the second position S2.

Further, in the case of the present embodiment, since the support member 11 is attached to the pair of attachment surface portions 10 of the attachment member 8 located at the first position S1 and the second position S2, respectively, At all times, the bundle of elastic ring members 16 is supplied at the first position S1, and the shaft 1 is supplied at the second position S2.
The elastic ring member 16 can be separated from the two, respectively, and highly efficient continuous operation is possible, and the construction of a line corresponding to mass production can be realized. Further, when the support member 11 is moved between the first position S1 and the second position S2 by the moving unit 6, the drive unit 23 is moved to the support member 11 by the moving unit 6.
Since it is not necessary to move the driving means 23 integrally with the driving means 23, it is possible to reduce the size and weight of the driving means 23.

Subsequently, the actuator 2 of the driving means 23
7 operates, the DC motor 26 and the convex connecting member 25 move from the retracted position to the connecting position, and the convex connecting member 25 is located at the second position S2 at the connecting position. Connect with 24. In this combined state,
The DC motor 26 operates and the support member 11 rotates about its rotation shaft 11a. At that time, since the shaft 12 on the support member 11 is eccentrically rotated about the rotation axis 11a, the bundle of the elastic ring members 16 receives the centrifugal force and moves largely, and the columnar portion 14 on the tip end side of the shaft 12 is moved. Are reliably separated from each other along the spiral groove 15 of. Moreover, the tapered surface portion 13 formed on the base end side of the shaft 12 can further promote the separating action by the eccentric rotation of the shaft 12 to more reliably separate the bundle of elastic ring members 16. One elastic ring member 16 and one spiral groove 15
Can be supplied to the receiving member 28 from the tip of the shaft 12 through the through.

The elastic ring members 16 separated from the tip of the shaft 12 and supplied to the receiving member 28 one by one are
It is received by the receiving member 28 and held in the bag portion 33 below the receiving member 28. At that time, the receiving member 28
Since the flange 30 is provided on the peripheral edge of the side plate 29, the elastic ring member 16 does not jump out of the receiving member 28 and is reliably held in the bag portion 33.
Part of elastic ring member 16 held in 3 (lower part)
Is exposed from the outlet 32 of the bag portion 33.

After that, the transfer cylinder 36 of the transfer means 34 operates and the transfer member 38 moves below the receiving member 28 toward the conveyor 35. At that time, the rod 37a of the lifting cylinder 37 projects upward, and the rod 37a engages with the lower portion of the elastic ring member 16 to take out the elastic ring member 16 from the outlet 32. The rod 37a descends when it reaches below the conveyor 35, and the elastic ring member 16 is transferred onto the conveyor 35,
It is conveyed to a predetermined position by the conveyor 35. here,
If the timings of the elastic ring members 16 supplied from the shaft 12 to the receiving member 28 coincide with the timing of taking out the elastic ring member 16 by the conveying means 34,
The elastic ring member 16 in the bag portion 33 can be prevented from overflowing, and the bag can be reliably transported.

The present invention is not limited to the above embodiment, but includes various other modifications.
As one of them, for example, in the above-mentioned embodiment, as a structure for moving the support member 11 from the first position S1 to the second position S2, the mounting member 8 is rotated by the pulse motor 7 and
The rotation is performed by 180 ° around the rotation axis 7a, but the axis of the first and second positions S1 and S2 is extended to obtain an intersection, and the intersection is used as a base point to move from the first position S1 to the second position. The support member 11 may be rotated 90 ° counterclockwise or 270 ° clockwise toward the position S2.

[0035]

As described above, according to the elastic ring member supplying apparatus of the present invention, the spiral groove is formed on the outer peripheral surface of the shaft, and the shaft is supported at a portion eccentric to the rotation axis of the supporting member by a predetermined distance. By the eccentric rotation of the elastic ring members, the bundle of elastic ring members receives a centrifugal force to move largely, and when the supporting members are rotated by the driving means, they can be reliably separated from each other and prevented from being entangled with each other. It is possible to surely feed each one from the tip of the shaft to the receiving member.

In particular, according to the invention of claim 2,
At the position, the bundle of elastic ring members is supplied to the shaft supported vertically, and the shaft is moved to the receiving member side by the moving means to the second position where the shaft is rotated by 90 °. By separately feeding each of the elastic ring members from the above, when feeding the bundle of elastic ring members at the first position, it is only necessary to drop the bundle of elastic ring members from above the shaft and place them on the outer circumference of the shaft. It is possible to facilitate and speed up the work.

According to the third aspect of the present invention, the support member is attached to the pair of attachment surface portions of the attachment member located at the first position and the second position, respectively, and the attachment member is rotated about its rotation axis by rotation of the motor. By rotating the bundle of elastic ring members at the first position at all times, the second bundle of elastic ring members is always rotated by 180 °.
At this position, the elastic ring member can be separated from the shaft, respectively, and highly efficient continuous operation is possible. Therefore, it is possible to construct a line corresponding to mass production.

In the invention according to claim 4, only when the support member is arranged at the second position, the motor of the drive means advances from the retracted position to be connected to the support member through the connecting member, and the motor is driven. The rotation of the support member causes the drive unit to move integrally with the support member when moving the support member between the first position and the second position by the moving unit. It is possible to reduce the weight of the moving means according to items 2 and 3.

In the invention according to claim 5, a bundle of elastic ring members is supplied to the tapered surface portion of the shaft, and the shaft is eccentrically rotated, so that the separation action by centrifugal force is achieved,
The separation of the elastic ring members is more reliably separated due to the separating action of the tapered surface portion, so that the elastic ring members can be fed one by one from the tip of the shaft through the spiral groove, which is smoother than the conventional feeding device. It is possible to separate and convey easily.

In the invention according to claim 6, the elastic ring member sent out from the tip of the shaft collides with the side plate of the receiving member and is guided to the lower bag portion by the side plate and the flange. The member can be prevented from jumping out of the receiving member, and can be reliably held in the bag portion of the receiving member.

In the invention according to claim 7, the elastic ring member separated from the shaft by successively taking out and carrying the elastic ring member held at the taking-out port at the lower end of the receiving member from the taking-out port by using the carrying means. It is possible to make the timing of each other coincide with the timing of taking out the elastic ring member by using the conveying means, prevent the elastic ring member in the bag portion of the receiving member from overflowing, and reliably convey the elastic ring member.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an elastic ring member supply device according to an embodiment of the present invention.

FIG. 2 is a view seen from the direction B in FIG.

FIG. 3 is a view seen from the direction C in FIG.

FIG. 4 is a cross-sectional view taken along line AA of FIG.

FIG. 5 is a schematic diagram when the shaft eccentrically rotates around the rotation axis of the support member.

FIG. 6 is a view seen from the direction A in FIG.

FIG. 7 is a view seen from the direction D in FIG.

FIG. 8 is a front view of a shaft used in a conventional elastic ring member supply device.

[Explanation of symbols]

 6 Moving means 7 Pulse motor 7a Rotating shaft of pulse motor 8 Mounting member 9 Inclined surface portion 10 Mounting surface portion 11 Supporting member 11a Rotating shaft of supporting member S1 First position S2 Second position 12 Shaft 13 Tapered surface portion 14 Cylindrical portion 15 Helix Groove 16 Elastic ring member 23 Driving means 24 Concave type connecting member 25 Convex type connecting member 26 DC motor 27 Cylinder (actuator) 28 Receiving member 29 Side plate 30 Flange 31 Receiving plate 32 Extracting port 33 Bag part 34 Conveying means

Claims (7)

[Claims] 1. A supply device for separating and supplying elastic ring members one by one from a bundle of elastic ring members, the shaft having a spiral groove formed on the outer peripheral surface for sending out the elastic members one by one. A support member that supports the shaft horizontally at a portion that is eccentric to the rotation axis by a predetermined distance, drive means that drives the support member to rotate about the rotation axis, and a tip of the shaft when the drive means operates. An elastic ring member supply device, comprising: a receiving member that receives the elastic ring member that is sent out. 2. The support member is further provided at a first position and a second position.
In the first position, the support member supports the shaft in a vertical state, and the bundle of elastic ring members is arranged on the outer periphery of the shaft. 2. The supply device for elastic ring members according to claim 1, wherein at the position, the shaft is supported horizontally and the elastic ring members are fed out one by one from the shaft. 3. The moving means includes a mounting member for mounting a support member and a motor for rotating the mounting member, the mounting member being inclined at 45 ° with respect to a vertical line and having the motor at the center. It is composed of an inclined surface portion to which a rotating shaft is connected, and a pair of mounting surface portions that are connected to both ends of the inclined surface portion and open at right angles to each other. The elastic ring member supply device according to claim 2, wherein the elastic ring member supply device is rotatably mounted about an axis. 4. The drive means includes a motor, and a connecting member that is attached to a rotating shaft of the motor and is connectable to a supporting member arranged at the second position so as to transmit the rotational force of the motor. The elastic ring member supply device according to claim 2, further comprising: an actuator that moves the motor and the connecting member between a connecting position at which the connecting member is connected to the supporting member and a retracted position separated from the supporting member. 5. The shaft comprises a tapered surface portion whose diameter gradually decreases from the base end portion toward the distal end side, and a columnar portion provided at the tip end of the tapered surface portion, and only on the outer peripheral surface of the columnar portion. The elastic ring member supply device according to claim 1, wherein a spiral groove is formed. 6. The side member is provided so as to be spaced apart from the tip of the shaft and to extend in the up-down direction so as to face each other, and the width gradually narrows from the upper end to the lower end, and the side plate. 2. A flange provided on a peripheral edge, and a receiving plate which cooperates with the side plate and the flange at a lower portion of the side plate to form a bag portion, and which receives an elastic ring member falling from above in the bag portion. The elastic ring member supply device described. 7. The bag portion of the receiving member is formed with a take-out port through which a part of the elastic ring is exposed, and further comprises a carrying means for taking out and carrying the elastic ring member from the take-out port. The elastic ring member supply device according to claim 6.