JPH08225142A - Rotary type part supply device - Google Patents

Abstract

PURPOSE: To provide a rotary type part supply device in which a bad effect generated by increasing the accuracy of work is avoided. CONSTITUTION: A bowl 80 is molded out of FRP(Fiber reinforced plastics), and a cylindrical body 94 with a built-in shaft is inserted through its center opening 80a, and a rotary disk 90 is fixed by a bolt 93 at its center in the upper end part of the built-in rotary shaft 5. The bowl 80 is rotated by a motor 85 through a belt 87 and however, the load is smaller than that in the conventional. The accuracy of work of the bowl 80 is high, and the gap (s) between the bowl 80 and the rotary disk 90 can be minimized, and a transportation path formed of the flange part 80b and its coaxial sidewall formation member 81 is accurately formed, and when a part is transported there, the image of its posture can be accurately picked up in the case where the image of its posture is picked up, for instance, by a CCD camera through a slit, and one which follows it, for instance, the transfer of it to a belt conveyer can be smoothly performed.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a rotary component feeder.

[0002]

2. Description of the Related Art FIGS. 2 to 8 show the whole of a conventional rotary component supplying apparatus. In the drawings, the uppermost portion 8a of a bowl 1 having a substantially cylindrical shape is in the bowl 1. The circular plate 8 is arranged so as to be inclined so as to be substantially at the same level as the horizontal flange portion 1a integrally formed at the upper edge portion of the
The rotating shaft 9 fixedly fixed to the central portion extends downward through a central opening 1b formed in the bottom portion of the bowl 1 and is coupled to the motor 13 by a coupling 12. There is. The rotating shaft 9 is rotatably supported by a long bearing member 10 fixed to a stationary portion 11.

A pulley 2 is integrally fixed to a bottom wall of the bowl 1 through a bearing B, and a belt 3 is wound around a groove formed in a peripheral portion of the bowl 2. The belt 3 is wound around a motor pulley 4 on the other hand. It is equipped. The rotary shaft 5 fixed integrally to the motor pulley 4 is integrated with the rotary shaft of the motor 6. In addition, along the outer edge of the flange portion 1a of the bowl 1,
In addition, the side wall forming member 14 in the shape of an arc is fixed to the stationary portion 7 with a gap.
It is fixed by a mounting member 15. The bowl 1 is rotated in the arrow direction shown in FIG. 3 by the motor 6 via the pulleys 2, 4 and the belt 3. The disk 8 is rotated in the same direction by the motor 13 via the coupling 12, but the rotation speed is higher than that of the bowl 1. Also, the flange portion 1a
Is formed horizontally, the belt conveyor device 16 is also horizontally arranged so as to extend in the tangential direction.

Since the belt conveyor main body 21 is very long as shown in FIG. 8, the belt conveyor device 16 is slidably mounted on the support block 20, and the lower traveling portion 21b thereof is placed on the block 20. It is abutted against, but it is driven by a motor 17 so that a part m to be fed to the upper traveling portion 21a thereof is cross-sectioned on both sides so as to be transferred with its longitudinal direction oriented in the transfer direction. Is L
A pair of letter-shaped side wall forming members 22a and 22b are arranged with a gap as shown in FIG. 8, and a horizontal arm portion thereof is fixed to the block 20 by a screw 24.

Further, as shown in FIG. 3, a light projector 18 and a light receiver 19 are provided in the vicinity of the upstream end of the belt conveyor device 16.
The overflow detecting device consisting of (1) and (2) is provided, and for this reason, small holes 23a and 23b are formed so as to be aligned with the light projector 18 and the light receiver 19 as shown in FIG.
Therefore, when the component m passes through this, the light beam from the light projector 18 is blocked so that the light receiver 19 detects that the component m is present at this position. That is, when the component m is continuously detected for a predetermined time or longer, it is recognized as an overflow.

Next, the attitude determination device 30 will be described with reference to FIG.
And FIG. 5 will be described.

The bowl 1 has a substantially cylindrical shape, and the side wall forming member 14 arranged concentrically with the flange portion 1a is fixed to the stationary portion 7 by a mounting member 15. However, this is composed of three segments as shown in FIG. 3, each of which can be adjusted by loosening the screw of the mounting member 15 in the radial direction. As shown in FIG. 5, in the posture determination device 30,
The side wall forming plate 14A has a narrow width and is arranged with a slight gap s between the large arc-shaped segments 14B and 14C on both sides thereof.
4A is also movable and adjustable within the range of the elongated hole 38a formed in the mounting member 38 by loosening the screw 35, that is, in the left-right direction in the drawing. That is, it can be adjusted in the radial direction. Accordingly, when the diameter of the component m is larger than that shown in the drawing, the side wall forming members 14B and 14C and the side wall forming plate 1 are loosened by loosening the screw 35.
4A is also moved radially outward, and if the diameter of the component m is smaller than that shown in the figure, the screw 35 is loosened to move radially inward.

Further, a wire 29 is attached to the inner edge portion of the flange portion 1a of the bowl 1 so that the component m on the flange portion 1a is restrained from moving in the width direction while lying in a lying position. With one rotation, the sheet is conveyed in this rotation direction.

As clearly shown in FIG. 5, the side wall forming plate 14
A has a slit 14a in the direction perpendicular to the flange portion 1a.
Is formed, and this height is sufficiently larger than the diameter of the part m. A CCD camera (Charge Coupled Dvise) 33, which is fixed to the stationary portion 7 via a mounting member 31, is provided as an image pickup device outside the diameter of the stationary portion 7 and can be lengthened by loosening the screw 32. Within the range of the hole 31a, FIG.
In this case, it is possible to adjust to the left and right, and thereby a zoom function is given so that the magnification can be changed for a certain component m. The stationary portion 7 is provided with an opening 7a facing the lens portion 33a of the CCD camera 33,
This is aligned with the above-mentioned slit 14a, and the light source 34 is disposed inward of the diameter of the stationary portion 7 in line with this. The light source 34 illuminates the part m passing in front of it, and the CCD camera 33 captures the shadow of the part m through the slit 14a. That is, according to the present embodiment, the CCD camera 33 as a line sensor takes an image of the shadow of the component m passing through the slit 14a, which changes sequentially, and the transfer posture of the component m through a delay circuit or the like. Is supplied to a controller (not shown). As is well known, the line sensor has CCDs as one pixel arranged in parallel or in parallel with the slit 14a in a line or in several lines. These are slits of the component m depending on whether the light from the light source 34 is irradiated or not. The computer in the controller 60 calculates the shadow based on the temporal change of the shadow.

Further, as clearly shown in FIG. 3, a component removing device 40 is provided on the downstream side of a predetermined angle from the position of the component attitude determining device 30, and the details thereof are shown in FIG. An air jet nozzle 42 attached to the tip of 41 is fixed to the stationary portion 7, faces the round hole 14b formed in the lower end of the side wall forming member 14, and is a component m passing therethrough. Those which are not in this posture are removed into the bowl 1 by the air blown from the jet nozzle 42.

Further, as clearly shown in FIG. 7, an encoder 50 is fixed to the bottom wall portion 7a of the stationary portion 7 in the vicinity of the outer wall portion 1b of the bowl 1, and is fixed to the tip portion of this rotating shaft. The rubber roller 50a is in pressure contact with the outer wall portion 1b of the bowl 1. That is, the rotation amount of the bowl 1 is converted into the rotation of the roller 50a, and the encoder 50 determines the bowl 1 from the rotation angle.
Detects how many times has rotated. This detection signal is supplied to the controller.

The predetermined posture is stored in the computer of the controller, and the predetermined posture and C with respect to the posture of the component actually flowing in the component posture determination device 30.
By supplying the image pickup signal of the CD camera 33 to the controller, it is compared with the stored posture. When not in a predetermined posture, the solenoid portion 64 of the solenoid valve 63 is excited to eject the compressed air from the compression tank 62 from the air ejection nozzle 42, and the component m passing in front of the air ejection nozzle 42 is bowled. It is designed to be discharged within 1. The operation timing of the air ejection nozzle 42 is
The solenoid portion 64 is excited in synchronization with the detection signal of the encoder 50.

When the motors 6 and 13 are driven, the rotary disk 8 rotates at high speed in the direction indicated by the arrow in FIG. 3, and the bowl 1 concentrically arranged outwardly of the rotary disk 8 also rotates in the same direction, but further. Rotate at low speed. Although shown only in a scattered manner for the sake of clarity, a large number of parts m to be fed on the disk 8
Are stored. Due to the high speed rotation of the rotary disk 8, the disk 80 is propelled radially outward by the centrifugal force and transferred from the upper edge 8a thereof onto the flange 1a of the bowl 1. Although the flange portion 1a is also low in speed, it is rotating in the same direction, so that the component m placed on the flange portion 1a forms a line in the component transfer path formed by the wire 29 and the side wall forming member 14 as the bowl 1 rotates. Be transported in. When reaching the side of the posture determination device 30, when the component m passes through the slit 14a, a camera 33 as a line sensor reads a shadow that changes in accordance with the posture in terms of time, and this image pickup signal is used as a controller. The rotation angle of the bowl 1 is detected by the encoder 50 and is conveyed from the slit 14a by a predetermined angle, which is supplied to the controller 60 and compared with the predetermined posture stored in the controller 60. In the component m which is not in a predetermined posture, the solenoid portion 64 is excited by the excitation signal from the controller 60, the solenoid valve 63 is operated, and the ejected air is ejected from the nozzle 42.
When passing the side of b, the part m is attached to the disk 8 in the bowl 1.
I'm trying to eliminate it above.

As described above, only the component m having a predetermined posture is supplied from the flange portion 1a of the bowl 1 to the belt conveyor device 16 that follows, and the belt main body 21 has its length direction oriented in the transfer direction. A predetermined posture is maintained and one piece is supplied to the next process.

As described above, the rotary component supply apparatus of the conventional example can supply one component m to a predetermined posture and supply it to the next process. Conventionally, the bowl 1 is formed by casting aluminum. The outer diameter of the bowl 1 is about 500 mm and the depth of the bowl 1 is about 90 mm. However, when the bowl 1 having such a shape is cast from aluminum,
Inaccurate dimensions result in various drawbacks.

That is, as described above, a slight gap is provided between the outer peripheral edge portion of the rotary disk 8 and the inner peripheral edge portion of the bowl 1. May become larger or smaller. When the size becomes large, the component m does not smoothly transfer from the upper edge portion of the rotating disc 8 into the annular passage 1a as the flange portion of the bowl 1, and depending on the case, the part m may not contact with the peripheral edge portion of the rotating disc 8. There is a risk that the rotation disk 8 and the bowl 1 may be stopped by being caught in the space, or that the part m may be broken if it is fragile. Further, if the gap between the peripheral edge of the rotating disk 8 and the inner peripheral surface of the bowl 1 is not uniform, the rotating disk 8 may make sliding contact with the inner peripheral wall of the bowl 1 at a certain rotation phase. There is also a risk of stopping its rotation.

Further, as described above, if the bowl 1 is eccentric to transfer the component m to the belt conveyor 16 in the next process, the component m may not be transferred smoothly to the belt conveyor 16 at a certain angular phase.

As described above, particularly in the rotary type component supply device, the processing error of the bowl 1 causes a big problem.

[0019]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the processing error of the bowl serving as the first rotating body is greatly reduced to prevent any adverse effects in the assembled state with other members. An object of the present invention is to provide a rotary component supply device that does not occur.

[0020]

SUMMARY OF THE INVENTION The above object is to provide a substantially cylindrical first rotating body, and the uppermost portion of the first rotating body substantially matches the level of the upper edge of the first rotating body. A disk-shaped second rotating body arranged so as to be inclined, and a cylindrical side wall arranged along the upper end surface of the first rotating body and concentrically with the first rotating body. A forming member, and the first
In a rotary component supply device configured to transport components on a circular component transport path formed by the upper end surface of the rotor and the side wall forming member, the first rotor is molded and processed by a synthetic resin. And a rotary component supply device.

[0021]

Since the first rotating body is molded and processed by the synthetic resin, the processing error can be greatly reduced as compared with the conventional one, and the above-mentioned harmful effects do not occur in the assembly with the related members.
Furthermore, the weight of the first rotating body can be reduced to reduce the rotating force and hence the driving force of the motor. Also, as long as the synthetic resin has appropriate strength, there is no problem even if the rotation speed of the first rotating body is a little high, but in some cases, FRP (fiber reinforced plastic) is sufficient for this. I can respond. )

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A rotary component supplying apparatus according to an embodiment of the present invention will be described below with reference to the drawings. The parts not shown are the same as the conventional ones.

In FIG. 1, the component supply apparatus of this embodiment is shown as a whole by 70, and a bowl 80 as the first rotating body according to the present invention is a FRP (Fiber reinforced plastic).
s-fiber reinforced plastic), which has a shape shown in the drawing, but can be easily obtained by an upper die and a lower die. Although it has substantially the same shape as the conventional one, the central opening 80a does not have a boss portion projecting downward unlike the conventional one, but a spigot (shallow recess) 80c is formed. A pulley 82 is fixed to this with a bolt 83, and a belt 87 is wound between this and a pulley 86 fixed to the rotation shaft of the motor 85. Also, the pulley 82
The inner race of the bearing 84 is fixed to the boss portion (lower cylindrical portion) of the, and the outer race is fixed to the fixing portion of the present device via the fixing member 88.

The upper end flange portion 80b of the bowl 80 forms a component transfer path with the concentric side wall forming member 81 provided with a slight gap therebetween.

The disk 90 is made of a metal such as aluminum as in the conventional case, which has the same shape as that of the conventional case.
Is the upper surface surface-treated to reduce the friction coefficient,
A film 91 made of synthetic resin having a small friction coefficient is attached. The rotary disc 90 is mounted on a tip end of a rotary shaft 95 built in a shaft built-in cylinder 94 via a fixing member 92 and a bolt 93.
It is fixed by. The rotating shaft 95 is driven at a predetermined rotation speed by a motor (not shown) (corresponding to 13 of the conventional example) in this embodiment. As in the conventional example, the rotating disk 90 is rotated by the motor 85, but the bowl 80
Is greater than the rotation speed of. The other configurations are the same as the conventional ones, and thus the description thereof is omitted.

Although the operation is the same, a brief description will be given. The rotating disk 90 is rotated in a certain direction at a predetermined rotation speed by driving a motor disposed below the shaft-containing cylinder 94. . Further, the bowl 80 is in the same direction as the rotating disc 90 by the belt 87 wound between the pulley 86 fixed to the rotation shaft of the motor 85 and the pulley 82 fixed to the bottom surface of the bowl 80, It is driven at a lower rotation speed. As in the conventional case, the component m is the transfer path 10
Is supplied to the outside at a specific angular position of the flange portion 80b, and in some cases, as in the conventional case, the posture is determined by the CCD camera through the slit formed in the side wall forming member 81, and the component is not in the predetermined posture. m is discharged to the inside of the bowl 80 by the air ejection means on the downstream side.
Only parts in a predetermined posture are supplied to the next process, for example, a belt conveyor.

In the preferred embodiment of the invention, bowl 80 is FRP.
Since it is molded with, the processing is not only simple, but also lighter than the conventional bowl made of aluminum, so the load of the motor 85 for rotating this is reduced, and the molding processing with FRP is also performed. As a result, the dimensions of the respective parts are accurately machined and, for example, the rotary disc 90 is concentrically arranged with a slight gap s as shown in the drawing. This gap s at the portion where the transfer is made as small as possible, is rotated by the rotation of the rotating disc 90 by the centrifugal force to slide there, and is smoothly transferred to the transfer path 80b. Further, the flange portion 80b serving as the transfer path is accurately and concentrically arranged with respect to the side wall forming member 81, so that the component m can be correctly positioned through the slit by the CCD camera, not shown. It can be imaged.

If the machining error is large, the bowl 80 may drop on the disc 90 during rotation, but in the present embodiment, there is no such fear, and only parts in a predetermined posture are included. Are supplied to the next step, for example, to a belt conveyor. Even when the bowl 80 is transferred to the belt conveyor, the bowl 80 is accurately processed, so that any shape of parts can be smoothly transferred to the belt conveyor.

Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made based on the technical idea of the present invention.

For example, in the above embodiment, the shallow recess 80c formed on the outer lower wall surface of the bowl 80 is also formed by molding, but of course, this portion is not molded, and only this portion is cut after molding. It may be processed.

Further, in the above embodiment, the bowl 80 is FR.
Although it is assumed that it is made of P, of course, it may be molded with a synthetic resin other than this. In this case, a plastic having a strength corresponding to the rotation speed of the bowl 80 is selected.

In the above embodiment, the rotary disc 90 is made of metal, but it is also made of plastic or FR.
You may make it shape-process with P.

[0033]

As described above, according to the rotary type component supplying apparatus of the present invention, the machining error of the first rotating body can be made much smaller than the conventional one, and the assembling accuracy between the members related thereto can be improved. By raising it, there is no occurrence of biting of parts or sliding contact with the second rotating body, which has occurred conventionally, and the weight of this first rotating body can be reduced even if it has the same size. It is possible to reduce the load on the motor that is rotationally driven and significantly reduce the apparatus cost.

[Brief description of drawings]

FIG. 1 is a side sectional view of a main part of a rotary component supply device according to an embodiment of the present invention.

FIG. 2 is a side sectional view of a rotary component supply device according to a conventional example.

FIG. 3 is a plan view of the same.

4 is an enlarged cross-sectional view of a main part [4]-in FIG.
[4] A sectional view taken along the line arrow.

5 is an enlarged front view of a posture determination unit in FIG.

FIG. 6 is an enlarged cross-sectional view of another main part.

FIG. 7 is an enlarged cross-sectional view of another main part.

8 is an enlarged cross-sectional view taken along line [8]-[8] in FIG.

[Explanation of symbols]

 80 bowl 90 rotating disk

Claims (2)

[Claims] 1. A substantially cylindrical first rotating body, and is disposed in the first rotating body so as to be inclined so that its uppermost portion substantially coincides with the level of the upper edge portion of the first rotating body. Disk-shaped second
The rotating body and a cylindrical side wall forming member arranged along the upper end surface of the first rotating body and concentrically with the first rotating body, and the upper end surface of the first rotating body and the In the rotary component supply device configured to transport components on a circular component transport path formed by the side wall forming member, the first component is provided.
A rotary component supply device, characterized in that the rotating body is molded from synthetic resin. 2. The synthetic resin is FRP (Fiber reinforc).
ed plastics-fiber reinforced plastics).
The rotary component supply device according to.