JP2001058718A - Parts supplying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a parts supplying machine capable of stably supplying component parts of minor dimensions, having small projection, etc. SOLUTION: A cylindrical vibrating body 4 and a disc-shaped rotor 6 are combined, wherein the gap between the inside surface of the cylindrical part 5 of the vibrating body 4 and the peripheral edge of the rotor 6 is made constant at a small value so that component parts stored on the rotor 6 in the cylindrical part 5 are prevented from being fitted in the gap, and it is made practicable for the parts to be fed stably from the periphery 13 of the rotor 6 to an aligning track 12 on the vibrating body 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component feeder for arranging and feeding components.

[0002]

2. Description of the Related Art As a component feeder for arranging and supplying components, components are accommodated in a bowl provided with a spiral track on the inner peripheral surface, and torsional vibration is applied to the bowl to supply the components along the track. A vibratory bowl feeder for transferring is often used.

[0003] This bowl feeder has the advantage that the structure is simple and the track for aligning the parts is easy to design, but the parts contained in the bowl collide with each other and the quantity of the parts in the bowl is reduced. Thus, there is a problem that the torsional vibration of the bowl is affected and the supply speed of the parts fluctuates.

In order to improve the difficulty of this bowl feeder, a component feeder disclosed in Japanese Patent Application Laid-Open No. 58-78912 discloses a torsionally vibrating cylindrical vibrator in which a circle having an inclined rotation axis is provided. A plate-shaped rotating body is arranged, and a component housed on the rotating body in the cylindrical portion of the vibrating body is provided along the upper end opening edge of the vibrating body from the outer peripheral portion on the inclined upper end side by rotation of the rotating body. It adopts a configuration to send it to the alignment track. In other words, this component feeder combines the advantage of a vibrating alignment track with a rotating body that can ensure a stable rotation speed.

[0005]

In the conventional component feeder in which the above-mentioned cylindrical vibrating body and the disk-shaped rotating body are combined, the rotating shaft of the rotating body is inclined with respect to the cylinder axis of the vibrating body. Therefore, the cross section of the cylinder of the vibrating body cut along a plane parallel to the rotating body becomes elliptical, and due to the change in the inclination angle of the rotating body, the inner circumferential surface of the vibrating body at the upper and lower ends of the rotating body and the outer surface of the rotating body The gap with the periphery changes. For this reason, there is a problem that it cannot be used for supplying a component having a small size that fits into the locally large gap or a component having a small protrusion or the like that fits into the gap.

In order to make the gap constant and reduce the size, the inner peripheral surface of the vibrating body may be formed into a spherical shape. However, it is difficult to form a spherical surface with high accuracy, and the manufacturing cost becomes extremely high.

It is an object of the present invention to provide a component feeder capable of stably supplying a component having a small size or a component having a small projection.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a cylindrical vibrating body which is torsionally vibrated in a circumferential direction and provided with an alignment track along an outer periphery of a cylindrical opening. A disk-shaped rotating body which is substantially inscribed in the cylindrical portion of the vibrating body, whose rotation axis is inclined, and whose outer peripheral portion is close to the alignment track at the inclined upper end side; The components housed on the body are sent to the alignment track from the outer peripheral portion on the inclined upper end side by the rotation of the rotating body, and the components sent to the alignment track are transferred to the alignment track by the torsional vibration of the vibrator. In the component feeder for transferring along, a configuration is adopted in which the cylinder axis of the vibrating body is inclined coaxially with the rotation axis of the rotating body.

That is, by inclining the cylinder axis of the vibrating body coaxially with the rotating axis of the rotating body, the cylindrical section of the vibrating body parallel to the rotating body is made circular, and the inner peripheral surface of the cylindrical portion of the vibrating body and the rotating body are rotated. The gap with the outer peripheral edge can be made constant and small.

[0010] The rotator is formed of resin, or
By coating the upper surface with resin, the noise generated when the parts housed on the rotating body rolls on the inclined rotating body can be reduced, and it can be used even in environments where noise regulations are strict. it can.

As the resin, ultra-high molecular weight polyethylene can be employed.

By forming the upper end surface of the cylindrical vibrator horizontally, it is easy to horizontally design an alignment track along the outer periphery of the opening of the cylindrical portion of the vibrator.

[0013] By forming a conical surface with a middle height on the upper surface of the rotator, the inclination of the upper surface of the rotator is made smaller at the upper end side of the rotator, thereby facilitating the feeding of the parts to the alignment track. At the inclined lower end side, the inclination of the upper surface of the rotating body is increased, and the components accommodated on the rotating body can be stably stored at the lower end side.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. This parts feeder supplies small-sized bolt parts to the next step.
As shown in FIG. 5, a cylindrical vibrator 4 having a slanted cylindrical shaft, which is connected to a plate spring 2 and an inclined table 3 above a support table 1, and substantially inscribed in a cylindrical portion 5 of the vibrator 4 , And a disk-shaped rotator 6 having an inclined rotation axis coinciding with the cylindrical axis. Therefore, the gap between the cylindrical portion 5 of the vibrating body 4 and the outer peripheral edge of the rotating body 6 is designed to be constant and very narrow.

The vibrating body 4 is provided with a torsional vibration in the circumferential direction by a vibrator (not shown), and the support 1 is attached to the base 7 via a vibration-proof rubber 8 so that the vibration is not transmitted to the base 7. Installed. The base 7 has a support 9
And the motor 1 for driving the rotating body 6
0, and a bearing 11 that supports the inclined rotating shaft of the rotating body 6 is attached.

An upper end surface of the cylindrical portion 5 of the vibrating body 4 is formed horizontally, and an alignment track 12 is provided along the upper outer periphery of the cylindrical portion 5 for approximately half a circumference. A guide piece 14 for feeding the bolt component moving on the outer peripheral portion 13 of the rotating body 6 onto the alignment track 12 is attached. The cylindrical wall of the cylindrical portion 5 from the entrance of the alignment track 12 to the narrow portion 15 described later is cut.

The entrance of the alignment track 12 is formed with a downward slope toward the outer circumference, and a wall 16 is provided on the outer circumference of the alignment track 12 over the entire length. A narrow portion 15 is provided in the middle of the alignment track 12, and the narrow portion 1 is provided.
5, a groove 17 into which the leg of the bolt component fits.
Are provided up to the discharge end 18.

The rotating body 6 is rotated in the direction indicated by the arrow in FIG. 2 and is close to the entrance of the alignment track 12 at the outer peripheral portion 13 on the upper end of the inclined body. The rotator 6 is formed of ultra-high molecular weight polyethylene, and the upper surface is a conical surface having a middle height. The conical surface has a slightly steep gradient at the outer peripheral portion 13, and is formed so that the gradient coincides with the downward gradient at the entrance of the alignment track 12 at the upper end of the rotating body 6. Also, the height level of the upper surface of the outer peripheral portion 13 at the upper end of the inclination is slightly higher than the entrance of the alignment track 12.

Next, the operation of the component feeder will be described. The bolt component to be supplied to the next step is put on the rotating body 6 through the opening of the cylindrical portion of the vibrating body 4 and stored in the cylindrical portion 5 of the vibrating body 4. The accommodated bolt component moves from the one placed on the outer peripheral portion 13 on the inclined lower end side of the rotating body 6 to the inclined upper end side by the rotation of the rotating body 6. The bolt component moved to the inclined upper end side is fed onto the alignment track 12 by the guide piece 14 from the entrance where the cylindrical wall is cut.

The bolt components placed on the portion other than the outer peripheral portion 13 are placed on the rotating body 6 as they are and return to the inclined lower end side or roll on the rotating body 6 to accumulate on the inclined lower end side. Wait for it to be on the outer peripheral portion 13. Since the rotating body 6 is made of ultra-high molecular weight polyethylene, even if a bolt part rolls thereon, it hardly generates noise.

The bolt components fed onto the alignment track 12 are transferred along the wall 16 on the alignment track 12 by the torsional vibration of the vibrator 4. At this time, if there are bolt components that are transferred in a plurality of rows, other than the bolt components on the outermost peripheral side, other components fall from the narrow portion 15 into the cylindrical portion 5 of the vibrating body 4, and The parts are aligned in a row. Regardless of the orientation of the bolt component that has passed through the narrow portion 15 in one row, the discharge end is in a state where the leg is fitted into the groove 17 and the upwardly directed head is hooked on the edge of the groove 17. 18 and supplied to the next step.

In the embodiment described above, the rotating body itself is formed of resin, but the upper surface of the rotating body may be coated with resin. Further, the upper surface of the rotating body is formed by two conical surfaces having different slopes, but may be formed by a single conical surface.

[0023]

As described above, in the component feeder of the present invention, the vibrating body and the rotating body are combined, and the cylinder axis of the vibrating body is inclined coaxially with the rotating axis of the rotating body. The gap between the inner peripheral surface of the cylindrical portion of the body and the outer peripheral edge of the rotating body can be made constant and small, so that small-sized parts and parts having small projections can be stably supplied.

Further, since the rotating body is formed of resin or the upper surface thereof is coated with resin, noise generated when a part accommodated on the rotating body rolls on the inclined rotating body is reduced. It can be reduced and can be used in an environment where noise regulations are strict.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing an embodiment of a component feeder.

FIG. 2 is a plan view of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support stand 2 Leaf spring 3 Inclined stand 4 Vibration body 5 Cylindrical part 6 Rotating body 7 Base 8 Anti-vibration rubber 9 Support post 10 Motor 11 Bearing 12 Alignment track 13 Outer peripheral part 14 Guide piece 15 Narrow part 16 Wall 17 Groove 18 Discharge end

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Akihiko Matsushita 1578 Higashikaizuka, Iwata-shi, Shizuoka Prefecture Inside (72) Inventor Kenji Asano 1578 Higashikaizuka, Iwata-shi, Shizuoka Prefecture F-term (reference) 3F080 AA24 BC01 BF04 CB11 CC04 DA01 DA09 DA10 DB09

Claims (5)

[Claims] 1. A cylindrical vibrating body which is torsionally vibrated in a circumferential direction and provided with an alignment track along the outer periphery of a cylindrical portion opening, and which is substantially inscribed in the cylindrical portion of the vibrating body and whose rotation axis is inclined. And a disk-shaped rotator whose outer peripheral portion is close to the alignment track at the upper end of the inclination, and the part accommodated on the rotator in the cylindrical portion of the vibrating member is rotated by the rotation of the rotator to rotate the part. It is sent from the outer periphery on the upper end side to the alignment track,
In a component feeder for transferring the components sent to the alignment track along the alignment track by the torsional vibration of the vibrating body, the cylinder axis of the vibrating body is inclined coaxially with the rotation axis of the rotating body. A parts feeder characterized by the above-mentioned. 2. The component feeder according to claim 1, wherein the rotating body is formed of a resin, or an upper surface thereof is coated with a resin. 3. The component feeder according to claim 2, wherein the resin is ultra-high molecular weight polyethylene. 4. The component feeder according to claim 1, wherein an upper end surface of the cylindrical vibrator is formed horizontally. 5. The component feeder according to claim 1, wherein an intermediate conical surface is formed on an upper surface of the rotating body.