JP2001058719A - Parts supplying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a parts supplying machine emitting less noises and capable of stably supplying component parts whereto oily objects are attached. SOLUTION: Component parts are stored on a rotor 5 in the cylindrical part 4 of vibrating body 3, and a urethane rubber sheet 18 having a large frictional coefficient is embedded in the peripheral surface of the rotor 5 which feeds the parts to an aligning track 11, and thereby the parts elevating in the condition placed on the peripheral surface are prevented from sliding down along the upper surface of the rotor 5 which is inclined, and the rotor 5 is made of polyethylene having an ultra-high molecular weight so that noise emission is precluded when any of the stored component parts tumbles upon the rotor 5.

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 the bowl feeder, a component feeder disclosed in Japanese Patent Application Laid-Open No. 58-78912 discloses a circular cylinder having an inclined rotating shaft inside a torsional vibrating cylindrical vibrator. 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]

When a conventional component feeder combining the above-mentioned vibrating body and rotating body is used to supply parts such as bolts and washers to which oil has adhered, the parts above the rotating body having inclined parts can be obtained. There is a problem that the component slides down along the surface and cannot be fed stably to the alignment track of the vibrator. Also, there is a problem that components housed on the rotating body roll on the inclined rotating body and generate noise.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a component feeder which can stably supply components to which oil has adhered and has low noise.

[0007]

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 the rotary member, a configuration is adopted in which the upper surface of the outer peripheral portion of the rotating body has a larger coefficient of friction than the upper surface of the other portion.

That is, by increasing the friction coefficient of the upper surface of the outer peripheral portion of the rotating body that feeds the components housed on the rotating body to the alignment track, the component that rises on the outer peripheral portion is reduced by the inclined rotating body. The parts did not slide down along the upper surface, and the parts could be sent to the alignment track in a stable manner.

By attaching another member having a large friction coefficient to the upper surface of the outer peripheral portion of the rotating body, the upper surface of the outer peripheral portion can have a higher friction coefficient than the upper surface of the other portion.

[0010] As the separate member, urethane rubber can be employed.

[0011] 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.

[0012] As the resin, ultrahigh molecular weight polyethylene can be employed.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. This component supply device supplies a bolt component to which oil has adhered to the next step. As shown in FIGS. 1 and 2, a cylindrical vibration connected by a leaf spring 2 above a support table 1 is provided. Body 3 and a disk-shaped rotating body 5 which is substantially inscribed in the cylindrical portion 4 of the vibrating body 3 and has an inclined rotation axis.
It is basically composed of

The vibrating body 3 is provided with a torsional vibration in the circumferential direction by a vibrator (not shown), and the support 1 is attached to the base 6 via a vibration-proof rubber 7 so that the vibration is not transmitted to the base 6. Installed. The base 6 has a support 8
And a motor 9 for driving the rotating body 5
And a bearing 10 for supporting the inclined rotating shaft of the rotating body 5 are attached.

At the upper end of the cylindrical portion 4 of the vibrating body 3, an alignment track 11 is provided along the outer peripheral edge of the opening substantially over half the circumference of the cylindrical portion 4. At the entrance of the alignment track 11, a rotating body is provided. A guide piece 12 for feeding a bolt component moving on the outer peripheral portion of the guide member 5 onto the alignment track 11 is attached. Note that the alignment track 11 may be provided along the outer periphery of the upper part of the cylindrical portion 4, and a window for feeding parts may be opened in the wall of the cylindrical portion 4 facing the entrance of the alignment track 11.

The entrance of the alignment track 11 is formed with a downward slope toward the outer circumference, and a wall 13 is provided on the outer circumference of the alignment track 11 over its entire length. Further, a narrow portion 14 is provided in the middle of the alignment track 11, and the narrow portion 1 is provided.
4, a groove 15 into which the leg of the bolt component fits.
Are provided up to the discharge end 16.

The rotator 5 is rotated in the direction indicated by the arrow in FIG. 2 and is close to the entrance of the alignment track 11 at the outer peripheral portion on the inclined upper end side. The rotator 5 is formed of ultra-high molecular weight polyethylene, and has a conical surface 17 which is provided on the outer surface of the outer peripheral portion and descends to the outer peripheral side, in which an annular urethane rubber sheet 18 is embedded. The slope of the conical surface 17 is formed so as to coincide with the downward slope of the entrance of the alignment track 11 at the upper end of the slope, and the height level at the upper end of the slope is slightly higher than the entrance of the alignment track 11. ing.

Next, the operation of the component feeder will be described. The bolt component to be supplied to the next step is thrown into the rotating body 5 from the upper opening of the vibrating body 3 and housed in the cylindrical portion 4 of the vibrating body 3.

The accommodated bolt component is moved from the one placed on the outer peripheral portion of the rotating body 5 on the inclined lower end side to the inclined upper end side by the rotation of the rotating body 5. At this time, since the urethane rubber sheet 18 having a large coefficient of friction is embedded in the upper surface of the outer peripheral portion of the rotating body 5, the bolt component to which oil has adhered does not slide down the inclined surface. In addition, the bolt component placed on a portion other than the outer peripheral portion slides or rolls on the inclined rotating body 5 and accumulates at the lower end of the inclined portion, and waits to be placed on the urethane rubber sheet 18. Since the rotating body 5 is formed of ultra-high molecular weight polyethylene, even if a bolt part rolls thereon, it hardly generates noise.

The bolt component moved to the inclined upper end side of the rotating body 5 is fed onto the alignment track 11 by the guide piece 12, and the torsion vibration of the vibrating body 3 causes the alignment track 1 to move.
1 is transported along the wall 13. 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, the other components fall from the narrow portion 14 into the cylindrical portion 4 of the vibrating body 3, and The parts are aligned in a row. Regardless of the orientation, the bolt component that has passed through the narrow portion 14 in a single row has its legs fitted into the groove 15 and the discharge head with the upwardly directed head hooked on the edge of the groove 15. 1
6 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. In addition, in order to increase the friction coefficient of the outer peripheral portion upper surface of the rotating body, a urethane rubber sheet having a large friction coefficient is embedded in this portion, but the outer peripheral portion upper surface is roughened, or the outer peripheral portion upper surface has a friction coefficient. A large thin sheet may be bonded.

[0022]

As described above, the component feeder according to the present invention comprises a combination of a vibrating body and a rotating body, and feeds the components accommodated on the rotating body to an alignment track. Since the coefficient of friction has been increased, the components rising on the outer peripheral portion are prevented from sliding down along the inclined surface of the rotating body, and the components can be stably sent to the alignment track of the vibrating body.

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 Vibrating body 4 Cylindrical part 5 Rotating body 6 Base 7 Anti-vibration rubber 8 Prop 9 Motor 10 Bearing 11 Alignment track 12 Guide piece 13 Wall 14 Narrow part 15 Groove 16 Discharge end 17 Conical surface 18 Urethane rubber Sheet

 ──────────────────────────────────────────────────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 BC03 BF18 CC04 DA15

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 the component feeder for transferring the components sent to the alignment track along the alignment track by the torsional vibration of the vibrating body, the friction coefficient of the upper surface of the outer peripheral portion of the rotating body is set higher than the upper surface of the other portion. A parts feeder characterized by a larger size. 2. The component feeder according to claim 1, wherein another member having a large friction coefficient is attached to an upper surface of an outer peripheral portion of the rotating body. 3. The component feeder according to claim 2, wherein the separate member is formed of urethane rubber. 4. 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. 5. The component feeder according to claim 4, wherein the resin is ultra-high molecular weight polyethylene.