JP2000085947A - Part feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a part feeder capable of feeding works to an alignment track in a fixed quantity. SOLUTION: An alignment track 7 is provided along an opening part outer periphery of a work storage part in a cylindrical vibrating body 4, and this alignment track 7 is inclined toward an outer diametrical side with a downward pitch. An inclined surface 11 to match the downward pitch of the alignment track 7 on the top end part of a rotor 9 is formed on an upper surface outer peripheral part of the inclined rotor 9 built in this work storage part, and a ring groove 12 is provided on the inclined surface 11. A work transfer plate 13 is installed from the neighbourhood of the top end part of the rotor 9 to the downstream on the alignment track 7. A guide piece 14 the head end part of which sinks in the ring groove 12 and the upper surface of which diagonally crosses with the inclined surface 11 is provided on the work transfer plate 13, the work transferred to the top part by rotation of the rotor 9 is naturally transferred to the work transfer plate 13, and the work is fed to the alignment track 7 by torsional vibration and inclination given to the work transfer plate 13.

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 supplying a small work in a fixed posture.

[0002]

2. Description of the Related Art As a component feeder for supplying a work in a fixed posture, a work is put into a bowl having a spiral track formed on an inner diameter surface, and a torsional vibration is given to the bowl.
2. Description of the Related Art A vibratory bowl feeder that moves a work along a track has been conventionally known.

In the above-mentioned bowl feeder, since the work stored in the bowl always vibrates together with the bowl, the works always collide with each other and the work is easily damaged.

In addition, there is a problem that the amount of torsional vibration of the bowl changes due to a change in the storage amount of the work, the moving speed of the work changes, and the work cannot be supplied quantitatively.

In order to solve such a problem, Japanese Patent Laid-Open Publication No. Sho 58-78912 discloses a hopper formed by a cylindrical falling prevention wall and an inclined disk provided inside the wall. A work is put in, and the work is sent to an alignment track provided on an outer peripheral portion of an upper edge of the falling-off prevention wall by rotation of a disk, and a screw vibration is applied to the alignment track to transfer the work along the alignment track. We have proposed a component feeder.

[0006] The above-mentioned component feeder has a feature that the work can be supplied to the alignment track in a fixed amount because the work is supplied onto the alignment track by rotating the inclined disk.

[0007]

By the way, in the above-mentioned component feeder provided with a supply section for supplying a fixed amount of work to the alignment track, the moving speed of the work moving on the alignment track is relatively slow, while the disk is moved. Since the supply of the work onto the alignment track is performed using the centrifugal force due to the rotation of the disk, if the rotation speed of the disk is reduced, the work cannot be supplied, and the alignment track transfers the work. It is not possible to supply an amount of work corresponding to the required work supply speed. For this reason, the supply of the work to the alignment track becomes excessive, and the work may be damaged when the work is clogged in the alignment track or the excess work is removed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a component feeder having a work supply unit which can supply an appropriate amount of work onto an alignment track at a rotation speed that matches the work supply speed of the alignment track.

[0009]

In order to solve the above-mentioned problems, according to the present invention, there is provided a cylindrical member having a work accommodating portion and an alignment track provided along an outer periphery of an opening of the work accommodating portion. Vibrating body, and a disk-shaped rotating body provided in an inclined manner in the work storage unit, and vibrates the work fed from the uppermost end of the rotating body onto the alignment track by the rotation of the rotating body. In a component feeder adapted to be transported in a circumferential direction on an alignment track by torsional vibration applied to a body, an inclined surface coinciding with the alignment track at an uppermost end of the rotating body is provided on an outer peripheral portion of an upper surface of the rotating body. The inclined surface is provided with an annular groove centered on the rotation axis of the rotating body, and on the alignment track, from the vicinity of the uppermost end of the rotating body to the downstream side, the tip is immersed in the annular groove, Its upper surface Adopts a structure in which a workpiece Noriutsuri portion having the inclined surface and the oblique interlinkage that the guide piece to the upstream end.

Here, the vibrating body may be a cylindrical one or an elliptical cylindrical one.

According to the above construction, the work placed on the inclined surface of the rotating body is conveyed in the circumferential direction by rotation, and naturally moves onto the work transfer portion at the uppermost end of the rotating body, and the work is transferred. Section will be transferred onto an alignment track. As described above, since the supply of the work to the alignment track uses the transfer, it is possible to reliably supply the work onto the alignment track even when the rotating speed of the rotating body is low, and to control the rotating speed of the rotating body. By doing so, an appropriate amount of work can be supplied onto the alignment track at a rotation speed that matches the work supply speed at which the alignment track transfers the work.

Here, in order to prevent the work moved from the work transfer section onto the alignment track from being returned to the work storage section, it is preferable to incline the alignment track with a downward slope toward the outer diameter side. .

In the above-mentioned component feeder, a guide is provided on the upper surface on the downstream side of the work transfer portion to guide the work moving on the inner periphery of the work transfer portion to the outer periphery, or on the inner diameter side of the work transfer portion, Providing an air injection nozzle for injecting air in the outer radial direction along the upper surface on the downstream side of the work transfer portion makes it possible to more reliably move the work from the work transfer portion to the alignment track.

If a circular bulge having an outer diameter corresponding to the inner diameter of the inclined surface is provided on the upper surface of the rotating body, the supply amount of the work to the uppermost part of the rotating body can be stabilized. .

The work supplied by the article supply machine includes a work having a small friction coefficient and a work that easily rolls. In order to reliably transfer such a work to the uppermost end of the rotating body, a resin film having a high coefficient of friction is provided on the upper surface of the rotating body, or, on the upper surface of the rotating body, the tip portion follows the inclined surface of the rotating body. It is preferable that a work scraping member is provided, and the work scraping member is supported on the rotating body so as to be vertically swingable.

Here, when the tip portion of the work scraping member is made to be able to swing backward in the rotation direction and is pressed in the rotation direction by a spring, damage of the work scraping member due to the load of the work is prevented. can do.

[0017]

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

As shown in FIGS. 1 and 2, a lower vibrating table 3 is elastically supported on a base 1 via a plurality of elastic bodies 2.

The lower vibrating table 3 and the vibrating body 4 disposed above the lower vibrating table 3 are connected by a plurality of leaf springs 5. The leaf springs 5 are arranged in an annular shape, and each leaf spring 5 is inclined in the same direction.

The vibrating body 4 has a cylindrical shape, and the inside is a work storage section 6. The vibrating body 4 is provided with torsional vibration by a vibrator not shown.

At the upper part of the outer periphery of the vibrating body 4,
An alignment track 7 is provided along the outer periphery of the opening. The alignment track 7 is inclined with a downward slope toward the outer diameter side, and a guide wall 8 is provided on the outer diameter edge.

The disk-shaped rotator 9 incorporated in the work storage section 6 is arranged in an inclined manner, and the uppermost end thereof is disposed slightly higher than the alignment track 7.

The rotating body 9 is rotated in a direction indicated by an arrow in FIG. 1 by a motor 10 provided below the vibrating body 4. On the outer peripheral portion of the upper surface of the rotating body 9, the alignment track 7
Is provided with an inclined surface 11 which coincides with the downward slope.

A plurality of annular grooves 12 centering on the rotation axis of the rotating body 9 are formed on the inclined surface 11.

As shown in FIG. 1, a work transfer plate 13 as a work transfer portion is fixed on the alignment track 7 from near the uppermost end of the rotating body 9 to the downstream side in the rotation direction of the rotating body 9. An inner peripheral portion of the transfer plate 13 projects on the inclined surface 11 of the rotating body 9, and a tapered surface 15 is formed at a rear end portion on the downstream side.

At the inner peripheral portion of the work transfer plate 13, a plurality of guide pieces 14 are provided at the upstream end in the rotation direction of the rotating body 9, the leading ends of which are fitted into the respective annular grooves 12. .

FIGS. 3 (I) to 3 (IV) show the positional relationship between the guide piece 14 and the annular groove 12 in the fitted state. At the upstream end of the guide piece 14, as shown in FIG.
The upper surface of the guide piece 14 is immersed in the annular groove 12 and is located below the inclined surface 11.
As shown in (II) and FIG. 3 (III), the guide piece 14 is disposed above the inclined surface 11, and the upper surface of the guide piece 14 is positioned obliquely to the inclined surface 11.

When the rotating body 9 is rotated in the direction of the arrow in FIG. 1 in a state where the works W are randomly stored on the rotating body 9 in the work storage section 6, the work W is rotated. Accordingly, the wafer is transferred to the uppermost end of the rotating body 9 while being placed on the upper surface of the rotating body 9.

When the work W on the inclined surface 11 reaches the uppermost end, the work W naturally moves onto the guide piece 14 at the fitting portion between the guide piece 14 and the annular groove 12.

Here, the work transfer plate 13 having the guide piece 14 is fixed on the alignment track 7 of the vibrator 4 and is torsionally vibrated together with the vibrator 4, and the work transfer plate 13 descends in the outer diameter direction. Since the work W has moved on the work transfer plate 13 due to the inclination, the work W moves in the outer radial direction while moving in the circumferential direction by torsional vibration, and is finally sent onto the alignment track 7, and the alignment track 7 is moved. Is transferred in the circumferential direction.

For this reason, by connecting a straight chute to the end of the alignment track 7, the work W can be supplied to the straight chute.

As described above, the work W riding on the upper surface of the rotating body 9 is transferred to the uppermost end by the rotation of the rotating body 9, and naturally moves onto the upper surface of the work transfer plate 13 at the position of the uppermost end. Since the work W is supplied onto the alignment track 7 by the torsional vibration and the tilting action given to the work transfer plate 13, even if the rotation speed of the rotating body 9 is low, the work W can be reliably placed on the alignment track 7. Can be supplied quantitatively.

For this reason, by controlling the rotation speed of the rotating body 9, it is possible to supply an appropriate amount of work W onto the alignment track 7 at a rotation speed that matches the work supply speed at which the alignment track 7 transfers the work W. it can.

Therefore, no excessive work W is supplied onto the alignment track 7, and it is not necessary to return the excess work W from the alignment track 7 to the work storage unit 6. This can be prevented beforehand, and the generation of noise can be suppressed.

4 to 9 show another example of the component feeder according to the present invention. In the component feeder shown in FIGS. 4 (I) and 4 (II), a plate-shaped guide 20 is provided on the inner peripheral portion of the upper surface on the downstream side of the work transfer plate 13, and the work transfer plate 13 is moved by the guide 20. The work W moving on the inner peripheral portion of the upper surface is guided in the outer radial direction. By providing the guides 20 in this manner, the movement of the work W from the work transfer plate 13 onto the alignment track 7 can be made more reliable.

In the example shown in FIGS. 5 (I) and (II),
An air injection nozzle 21 is provided on the inner diameter side of the work transfer plate 13, and the work transfer plate 1 is
Air is injected to the upper surface on the downstream side of 3.

When the air jet nozzle 21 is provided as described above, the work W moving on the inner peripheral portion of the upper surface of the work transfer plate 13 is blown in the outer diameter direction by the air jetted from the air jet nozzle 21. Similarly, the supply of the work W from the work transfer plate 13 to the alignment track 7 can be ensured.

In the example shown in FIG. 6, a circular bulge 22 whose outer diameter corresponds to the inner diameter of the inclined surface 11 is provided on the upper surface of the rotating body 9.

Here, the bulging portion 22 may be provided integrally with the rotating body 9 or may be provided separately. By providing the bulging portion 22, the supply of the work W to the uppermost end of the rotating body 9 can be stabilized.

In the example shown in FIG. 7, a resin film 23 having a high friction coefficient is provided on the upper surface of the rotating body 9. As described above, when the resin film 23 is provided on the rotating body 9, the work W can be reliably transferred to the uppermost portion of the rotating body 9 even with a work W having a small friction coefficient or a work W that easily rolls.

In the example shown in FIGS. 8 and 9, a boss 24 is provided at the center of the upper surface of the rotating body 9, and a plurality of workpiece scraping members 26 can be vertically swung on the boss 24 via pins 25. It is attached to. Here, the work scraping member 26 has a configuration in which a scraper 26b whose lower end matches the inclined surface 11 of the rotating body 9 is provided at the tip of an arm 26a extending in the radial direction of the rotating body 9.

The scraper 26b may be erected perpendicularly to the inclined surface 11, or may be inclined toward the trailing side in the rotation direction of the rotating body 9.

As described above, the boss 2 provided on the rotating body 9
When the workpiece scraping member 26 is provided to be able to swing up and down in 4, the workpiece scraping member 26 rotates integrally with the rotating body 9, so that the work W on the rotating body 9 is scraped up by the scraper 26 b. The surplus work W surmounts the scraper 26b and is left behind.

Therefore, the work W can be reliably transferred to the uppermost part of the rotating body 9. Further, since the work scraping member 26 can swing up and down around the pin 25, the scraper 26b is
When moving along the upper surface of the work 3, the work scraping member 26 swings upward around the pin 25 as shown in FIG. As a result, the lower end of the scraper 26b comes into contact with the inclined surface 11 and can pass through the position of the work transfer plate 13 smoothly.

In the work scraping member 26 shown in FIGS. 9 (I) and 9 (II), an interval is provided between the arm 26a and the upper surface of the rotating body 9 to reduce the load on the work W. As shown in FIG. 9 (III), the tip of the arm 26a is brought into contact with the upper surface of the rotating body 9 and the arm 26a
The workpiece W may be scraped up. Note that the arm 26a may be fixed to the boss 24, and the scraper 26b provided at the tip of the arm 26a may be supported so as to swing upward.

FIGS. 10 (I) and (II) show another example of the work scraping member 26. This work scraping member 26
Is provided with a pair of support pieces 27 vertically at the tip of an arm 26a that is swingably connected to the boss 24 shown in FIG. 8, and rotates the scraper 26b around a pin 28 supported by the support piece 27. In this manner, the scraper 26b is swingably supported toward the trailing side in the direction, and the scraper 26b is pressed in the rotational direction by a spring 29 supported by the pin 28.

As described above, when the scraper 26b can be swung rearward in the rotational direction, the scraper 2b
When a load larger than the elasticity of the spring 29 is applied to the work 6b, the scraper 26b swings backward, so that the work W
This can prevent the work scraping member 26 from being damaged by the load.

The number of the work scraping members 26 is arbitrary, and may be determined in accordance with the work supply capability of the alignment track 7.

[0049]

As described above, according to the present invention, the work on the inclined surface of the rotating body is carried to the uppermost end by the rotation of the rotating body, and is naturally placed on the work transfer plate at the position of the uppermost end. The work is transferred from the work transfer plate to the alignment track, so there is no need to increase the number of revolutions of the rotating body as in the past, and the optimum amount of work is supplied at a rotation speed that matches the work supply speed on the alignment track. It can be supplied on an alignment track.

Further, since the work can be supplied at the minimum necessary rotation speed corresponding to the work supply speed of the alignment track, the generation of noise can be controlled.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of a component feeder according to the present invention.

FIG. 2 is a longitudinal sectional front view of the above.

FIGS. 3 (I) to (IV) are aa lines and bb lines in FIG.
Sectional view along line, cc line and dd line

FIGS. 4 (I) and (II) show a second embodiment of the parts feeder of the above, and FIG. 4 (I) is a plan view showing a part thereof;
I) is a sectional view

FIGS. 5 (I) and (II) show a third embodiment of the same component feeder, wherein (I) is a partial plan view and (II) is a sectional view.

FIG. 6 is a partial cross-sectional view showing a fourth embodiment of the parts supplier;

FIG. 7 is a partial cross-sectional view showing a fifth embodiment of the parts feeder according to the present invention;

FIG. 8 is a plan view showing a sixth embodiment of the parts supplier;

FIG. 9 (I) is a cross-sectional view showing a state in which the work scraping member is moving on the upper surface of the work transfer plate.
I) is a cross-sectional view showing a state in which the lowermost position of the rotating body is moved, and (III) is a cross-sectional view showing another example of the workpiece scraping member.

FIG. 10 (I) is a perspective view showing another example of a work scraping member, and FIG. 10 (II) is a sectional view of a connecting portion between an arm and a scraper.

[Explanation of symbols]

 Reference Signs List 4 Vibration body 6 Work storage unit 7 Alignment track 9 Rotating body 11 Inclined surface 12 Annular groove 13 Work transfer plate 14 Guide piece 20 Guide guide 21 Air injection nozzle 22 Swelling part 23 Resin coating 26 Work scraping member

Claims (8)

[Claims] 1. A cylindrical vibrating body having a work storage portion inside and an alignment track provided along an outer periphery of an opening of the work storage portion, and a disk provided in the work storage portion at an angle. A work fed from the uppermost end of the rotator onto the alignment track by rotation of the rotator so that the work is circumferentially transferred on the alignment track by torsional vibration applied to the vibrator. In the component feeder described above, an inclined surface is formed on the outer peripheral portion of the upper surface of the rotating body at the uppermost end of the rotating body so as to coincide with the alignment track, and the inclined surface has an annular shape about the rotation axis of the rotating body. A groove is provided, and on the alignment track, from the vicinity of the uppermost end of the rotating body to the downstream side, a tip is immersed in the annular groove, and a guide piece whose upper surface obliquely intersects the inclined surface has an upstream end. Transfer of work A component feeder characterized by having a refill portion. 2. The component feeder according to claim 1, wherein the alignment track is inclined with a downward slope toward an outer diameter side. 3. On the upper surface on the downstream side of the work transfer portion,
The component feeder according to claim 1, further comprising a guide that guides a workpiece moving at an inner peripheral part of the workpiece transfer part in an outer peripheral direction. 4. The air injection nozzle according to claim 1, wherein an air injection nozzle for injecting air in an outer peripheral direction along a downstream upper surface of the work transfer portion is provided on an inner diameter side of the work transfer portion. Parts feeder. 5. The component feeder according to claim 1, wherein a circular bulge having an outer diameter corresponding to an inner diameter of the inclined surface is provided on an upper surface of the rotating body. 6. The component feeder according to claim 1, wherein a resin film having a large coefficient of friction is formed on an upper surface of the rotating body. 7. A work scraping member having a tip portion along an inclined surface of the rotating body is provided on an upper surface of the rotating body, and the work scraping member is supported on the rotating body so as to be vertically swingable. The component feeder according to any one of claims 1 to 6, wherein: 8. The component feeder according to claim 7, wherein a tip portion of the workpiece scraping member is swingable rearward in a rotation direction, and the tip portion is pressed in a rotation direction by a spring. .