JP3463585B2 - Parts feeder - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parts feeding apparatus.

[0002]

2. Description of the Related Art For example, in a vibrating parts feeder, a spiral part transfer path is formed on the inner peripheral wall of a bowl that receives a large number of parts, and the parts are transferred along the transfer path by the torsional vibration of the bowl. However, on the way, the transfer attitude of the parts is determined, and based on this judgment, the parts which are not in the desired attitude by some part feeding means are moved outward from the transfer path, for example, by compressed air to the bowl. Blow inward or straighten to the desired posture,
For example, it is widely known to correct the direction by 180 degrees and correct it by a turntable so as to guide it to the downstream transfer path.

However, as a conventional device for discriminating the posture of a component, for example, a plurality of pairs of light emitting elements and light receiving elements are formed, and a small hole penetrating a transfer path for passing a light beam from each light emitting element is formed. A light receiving element is arranged to receive the light from the light emitting element. Among these, a pair of light emitting element and light receiving element are used for so-called synchronization, and when this light is blocked, the posture is determined. It is determined that the tip of the component to be reached has reached the detection position, and in the computer it is determined whether the light from the light emitting element corresponding to which light receiving element in the other pair of light emitting element and light receiving element at this time has arrived, As a result, as compared with the predetermined posture, when the posture is not the predetermined posture, the components are blown toward the inside of the bowl by the component adjusting means on the downstream side, for example, the air jetting means. Alternatively, when it is determined that the front-rear direction is opposite, the component inverting means corrects the posture to supply the correct posture to the downstream side.

However, there is no problem if the parts stored in the bowl are constant parts. However, if the above-mentioned action is to be performed on parts having other shapes, the attitude of the parts is judged. The arrangement of the plurality of pairs of light emitting elements and light receiving elements that should be used must be changed in order to determine the posture. Alternatively, the number must be changed. Recently, since the components to be transported have become very small like electronic components, the work of arranging the light emitting element and the light receiving element is very troublesome. Further, as the size of the component becomes smaller, a through hole must be formed in the transfer path to allow the light from the light emitting element to pass therethrough, but this also becomes small, and it is very difficult to form this.

The present applicant has been made in view of the above problems, and can immediately and promptly cope with a change in the shape of a component, and can properly maintain a proper posture for any shape or any small component. For the purpose of providing a parts feeding device capable of discriminating between the first rotating body and the first rotating body, the uppermost part of the first rotating body is the first rotating body.
A disk-shaped second rotating body which is arranged so as to be inclined so as to substantially match the level of the upper edge of the rotating body; and along the upper end surface of the first rotating body, and the first rotating body. Attitude determination means for determining the attitudes of the cylindrical side wall forming members arranged concentrically, the upper end surface of the first rotating body, and the parts transferred on the circular part transfer path formed by the side wall forming members. And a component removing unit that removes the component onto the second rotating body according to the determination result of the posture determining unit, and the first rotating body and the second rotating body rotate independently in the same direction. Moving a component housed on the second rotating body toward the component transfer path by a centrifugal force generated by the rotation of the second rotating body,
The component is conveyed along the side wall forming member on the component transfer path, and the posture determining means includes an opening formed in the side wall forming member, a light source disposed on one side of the opening, There has been proposed a parts feeding device characterized by comprising an image pickup device arranged on the other side opposite to a light source (Japanese Patent Application No. 4-179139).

With the above-described device, the posture of the component conveyed on the predetermined transfer path by the rotation of the first rotating body is imaged when it reaches the posture detection position, that is, the position facing the image pickup device, for example, the CCD camera. To be done. The image pickup result is compared with a desired posture in the computer, and when the postures do not match, the parts are removed onto the second rotating body by the component removing means on the downstream side. Since the paper is fed as described above, it is possible to easily input and store this posture into the computer regardless of the shape of the parts. However, since it can be enlarged and imaged, it can be applied to a wider range of parts than in the past.

However, as the parts handled by the above apparatus, for example, a long part m as shown in FIG. 1 is often handled, and such a part m is removed from the disk of the second rotating body by centrifugal force. It is transferred to the component transfer path formed on the upper surface of the one rotating body and transferred there by the rotation of the first rotating body. At this time, it receives a correction force for directing the longitudinal direction of the rotating body to the downstream side, Go to In the above device,
During this process, it is determined whether or not the posture is correct in the front-rear direction, and the component in the rearward posture is returned onto the second rotary body by, for example, air ejection means.
Therefore, there are about 2
Although it can be supplied to the next process with a probability of one, higher supply efficiency is required.

In view of the above-mentioned problems, the present applicant applies the component feeder disclosed in the above-mentioned apparatus, so-called rotary parts feeder R, and supplies the components in the correct posture in the front-rear direction for the next process. For the purpose of applying a component supply device capable of greatly improving the efficiency of the operation, a substantially cylindrical first rotating body and an uppermost part of the first rotating body are located above the first rotating body. A disk-shaped second rotating body which is arranged so as to be inclined so as to substantially match the level of the edge portion, and is arranged along the upper end surface of the first rotating body and concentrically with the first rotating body. And a side wall forming member having a cylindrical shape, the upper end surface of the first rotating body and the side wall forming member form a circular component transfer path, and the first rotating body and the second rotating body are independent of each other. And then rotated in the same direction and housed on the second rotating body A component supply device which is moved toward the component transfer path by a centrifugal force generated by the rotation of the two rotating bodies and conveys the component along the side wall forming member on the component transfer path; A pair of belt conveyors connected to the discharge end of the component transfer path and having a gap between them, a licensor image pickup device arranged on the opposite side aligned with the gap, and a light source, A component posture sorting device provided downstream of the licensor image pickup device and having a component eliminating means for eliminating a component that is not in a predetermined posture to one side in the transfer direction of the belt conveyor. In the apparatus, a component transfer means is arranged in parallel with or perpendicular to the one side of the pair of belt conveyors, and the component not in the predetermined posture removed by the component removing means is left as it is. Proposed a component Seioku device being characterized in that so as to be transferred from the component transfer unit in the correct orientation relates longitudinal orientation of the component to the component transfer path of the component feeding device is received by said component transfer means energized.

With the above-mentioned apparatus, the efficiency of the parts which are surely placed in the correct posture and supplied to the next process can be greatly improved. However, there are the following problems.

That is, in the above apparatus, the overflow detecting device is provided on the downstream side, and the components having the correct posture are transferred in a state of, for example, being in contact with each other, and the components having the correct posture are supplied from the upstream side. If so, the postures may be disturbed by the pressure of each other, or they may jump out, so as is well known, the air is ejected from the upstream side, for example, by an air ejection device, and in the above device, It is designed such that the components are blown off onto the component transfer means arranged on one side of the belt conveyor device, but in this case, the components in the correct posture are also blown away in almost the same posture, and this is the component supply. When it is supplied from the discharge end of the device, it will be supplied to the belt conveyor device in the opposite posture. It will be re-transferred to the component transfer unit of one side of the device. Therefore, when the overflow state is released in a short time, a large amount of components having an incorrect posture are supplied to the belt conveyor device, which reduces the efficiency of supplying the components to the next process.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and provides a parts feeding apparatus capable of further increasing the supply efficiency of parts to be supplied to the next process in a correct posture with respect to the front-back posture. The task is to do.

[0012]

The above-mentioned problems are solved by the above-mentioned first rotating body having a substantially cylindrical shape, and the uppermost part of the first rotating body substantially coincides with the level of the upper edge of the first rotating body. Disk-shaped second rotating body arranged so as to be inclined, and a cylindrical side wall formed along the upper end surface of the first rotating body and concentrically with the first rotating body A member, a circular component transfer path is formed by the upper end surface of the first rotating body and the side wall forming member, and the first rotating body and the second rotating body rotate independently in the same direction, A component accommodated on the second rotating body is moved toward the component transfer path by a centrifugal force due to the rotation of the two rotating body, and the component is conveyed along the side wall forming member on the component transfer path. And the discharge end of the component transfer path of the component supply device. And Rutokonbeya device, an imaging device disposed on opposite sides of the belt conveyor device, a light source and, by the imaging device is disposed downstream of the imaging device
An air jetting device for eliminating a part judged to be in a backward posture to one side with respect to the transfer direction of the belt conveyor device, and a part overflow detection means provided on the downstream side of the belt conveyor device. Parallel to the one side of the belt conveyor device,
The component transfer means for transferring the component in the opposite direction to the placement is arranged, and the component in the rearward posture removed by the air ejecting device is received by the component transfer means in the same posture, and the component is transferred by the component supply device. In a component feeding device for transferring from the component transfer means in a forward posture on a road, an encoder is connected to one of a plurality of rollers around which a belt of the belt conveyor device is wound, and at least the When the computer that receives the image pickup signal of the image pickup device, the output of the encoder, and the detection signal of the overflow detection means determines that the computer is in a forward-looking posture based on the image pickup signal, and the overflow detection means is a unit.
When the overflow of the product is not detected, the air ejection device is not driven, the component is allowed to proceed to the downstream side as it is, and when it is determined that the posture is backward, the output pulse of the encoder is Counting from the time of attitude determination, and when the first predetermined number of pulses is reached, the air ejection device is driven to blow the component in the rearward posture to the component transfer means in the same posture, and the overflow occurs. The detector has detected an overflow, and the computer has a positive component attitude.
If the output pulse of the encoder reaches a second predetermined number of pulses counted from the time of determining the posture of the component based on the image pickup signal,
Wherein by driving the air injection device, approximately 180 degrees to invert the parts forward orientation by blowing of the injected air, before
Serial component transfer unit component Seioku apparatus being characterized in that so as to transfer to is solved by the.

Alternatively, a component supply device for transporting the component through a component transfer path provided in the bowl, a component transfer device installed at the discharge end of the component supply device for supplying the component to the next process, and the component A component posture determination means for determining the front-back posture of a component provided at a predetermined position of the transport device, and a component removal means provided downstream of the component posture determination means for removing the component to one side of the component transport device. And a component transfer device that is installed in parallel to the one side of the component transfer device and transfers the component to the component transfer path, and removes the component that is not in a predetermined front-back posture by the component removing means. In the component rearranging device that transfers the component to the component transfer path in a predetermined front-back posture by removing the component to the transfer device, a component overflow detection means and a component attitude reversal elimination means are provided at a predetermined position of the component transfer device. However, when the overflow detecting means detects the overflow of the component and the component attitude determining means determines that the front / rear attitude of the component is in the predetermined direction, the part attitude reversing / removing means determines the front / rear direction of the part. After the posture is reversed, the component is removed by the component transfer device, and when the component posture determination unit determines that the front-back posture of the component is not in the predetermined direction, the component removal unit is driven to move the component in that state. Eliminate to parts transfer device ,
The overflow detection means prevents overflow of parts.
Not detected, and the part attitude determination means detects the front-back attitude of the part.
If it is determined that is in the predetermined direction,
The removing means is not driven, and is advanced to the downstream side,
If the front-back posture of the component is not in the predetermined direction by the component posture determination means
When it is discriminated, the component removing means is driven,
This is solved by a parts feeding device characterized in that it is excluded to the parts conveying device in the same posture .

With the above construction, when the posture discriminating means or the image pickup device on the belt conveyor device takes an image of the posture of a component having an incorrect posture, or when it is judged, the counting is started from the posture judgment time of the computer. Then, when the first predetermined number of pulses is counted, it is transferred to the side component transfer means in the same posture by operating the part removal means or the air ejection means, and again from the upstream side part supply device. When it is supplied to the belt conveyor device, it is supplied in the correct posture. Therefore, at that time, it is supplied to the next step as it is without driving the component removing means or the air ejection device. If it is in the correct posture, it will proceed to the downstream side as it is without operating the component removing means or the air jetting device. Now, on the downstream side, the overflow state is detected by the overflow detecting device and the imaging is performed. When the device or the attitude determination means determines that the computer is in the correct attitude, counting from the time when the attitude is determined, and when the number of pulses from the encoder reaches the second predetermined pulse number, the component removing means or the air ejection means is operated, The component in the correct posture is inverted by 180 degrees and transferred to the component transfer means, and thus is supplied from the upstream component supply device to the belt conveyor device in the correct posture. Therefore, if the overflow state has been released so far, it is possible to proceed the process as it is, and to supply the component to the next process in a correct posture with higher efficiency than in the past.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION A parts feeding apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

1 and 2 show the entire parts feeding apparatus of the present embodiment, the uppermost portion 8a of a rotary parts feeder R in a substantially cylindrical bowl 1 is shown in the drawings. Is provided with a horizontal flange portion 1a integrally formed on the upper edge portion of the bowl 1 and a disc 8 which is arranged so as to be inclined at substantially the same level. The fixed rotating shaft 9 extends downward through a central opening 1b formed at the bottom of the bowl 1 and is connected to a motor 13 by a coupling 12. 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 the bottom wall of the bowl 1 via a bearing B, and a belt 3 is wound around a groove formed in the periphery of the pulley, which is wound around a motor pulley 4 on the other hand. Has been done. The rotary shaft 5 fixed integrally to the motor pulley 4 is integrated with the rotary shaft of the motor 6.
An arcuate side wall forming member 14 is fixed to the stationary portion 7 by bolts and nuts 15 along the outer edge of the flange portion 1a of the bowl 1 and with a gap. The bowl 1 is rotated in the arrow direction shown in FIG. 1 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, but the alignment belt conveyor device 33 is also horizontally arranged so as to extend in the tangential direction.

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 in a lying position while the bowl 1 is being held. The paper is conveyed in this rotation direction with the rotation of.

Next, the component posture selecting section 30 according to the present invention.
Will be described. As shown in FIG. 1, the component transfer path 1a of the rotary parts feeder R rotates at a high speed in the direction of the arrow, but a linear side wall plate is formed so as to form a discharge port so as to extend in the tangential direction thereof. 28 is fixed to the end of a circular side wall forming plate 29 by bolts 31 and nuts 32. As shown in FIG. 1, a part m is transferred to the aligning conveyor 33 with the longitudinal direction thereof in the transfer direction. To be done. This is a normal belt conveyor, and the side walls 33a and 33b are arranged on both sides of the belt conveyor, and the side belts 33a and 33b are transferred to a pair of selection belt conveyors 35 and 36 which form a component posture selection unit main body. Since the sorting belt conveyors 35 and 36 have the same configuration, only the sorting belt conveyor 35 on the upstream side will be described, and parts corresponding to these constituent elements will be marked with dashes in the other sorting belt conveyor 36. Also, the sorting belt conveyors 35, 36
A slit S is provided between them, and a CCD camera 37 for a line sensor and a light source 38 are provided in line with the slit S. Further, an air ejection nozzle 40 is disposed in the vicinity of the downstream end of the downstream sorting belt conveyor 36, and this is connected to a solenoid valve (not shown) via a tube, which is for a line sensor. A solenoid valve is opened by a control output of a computer (not shown) that receives an image pickup signal of the CCD camera 37, air is ejected from the air ejection nozzle 40, and the part m is transferred under the condition described below that is transferred in front of this. The transfer is performed on the belt conveyor 30 on the side. On the downstream side of the sorting belt conveyor 36 on the downstream side, a belt conveyor 41 for supplying the next process is provided with a further gap, and this is also an alignment belt conveyor 33 on the upstream side.
Similarly to the above, the side wall portions 41a and 41b are provided with a gap therebetween so that a predetermined posture can be surely held and supplied in the next step.

The upstream sorting belt conveyor 35 has three rollers 42, 43 and 44 arranged at the vertices of an isosceles triangle, of which the lower roller 43 is a drive roller. A timing belt 46 is wound between a pulley attached to one end of the driving roller 43 'and a driven roller 43' of the sorting belt conveyor 36 on the downstream side. The driving roller 43 is driven by a motor (not shown). It is driven at the rotation speed of. The downstream sorting belt conveyor also has three rollers 42 ', 43', and 44 'arranged in the same manner as the upstream sorting belt conveyor 35, and the lower roller 43' is a driving roller as described above. When 43 is driven at a predetermined speed, it is rotated at the same predetermined driving speed in the same direction via the timing belt 46. Therefore, these rollers 42, 43, 44, 42 ', 4
Belts 45 and 4 wound around 3'and 44 ', respectively
The upper traveling portion of 5'is driven at the same traveling speed, and a gap S is formed between them,
The part m is conveyed here at a predetermined speed. At this time,
The CCD camera 37 for line sensor images the shadow of the component m that receives the light from the light source 38, and supplies the image pickup signal to a computer (not shown) to determine its posture.

On one side of the pair of sorting belt conveyors 35 and 36, as shown in FIG. 2, a belt conveyor 300 is arranged with an ascending inclination, which is a driving roller 48 and a driven roller 49. The belt is wrapped around. A pump 51 for forcibly pneumatically feeding air is provided near the discharge end of the belt conveyor 300, and an arc-shaped transfer chute 5 as shown in FIG.
2 quickly receives the air blown out from the pump 51 and is driven in a predetermined direction, passes through the notch 14a provided in the side wall forming member 14 of the rotary parts feeder R, and does not change its posture in the front-back direction. , Is configured to be transferred onto the flange portion 1a of the bowl 1. This portion is on the clockwise side of the upper end 8a of the disc 8. That is, since it is on the upstream side in the transport direction of the transfer path 1a, it does not interfere with the component m rising from the disk 8 by centrifugal force.

Further, according to the present invention, the belt conveyor 300 as the component transferring means is provided on the side of the one belt conveyor 36, and the sagging film 11 made of rubber is further provided on the side. The above-mentioned air jet nozzle 40 is provided so as to face this. Furthermore,
An encoder 6 is coaxially coupled to the roller 44 'of the belt conveyor 36, and this output pulse is supplied to the controller 93 in the computer shown in FIG. Furthermore,
An overflow detecting device including a light source E and a light receiving element H is provided near the upstream end of the downstream belt conveyor 41, and the sidewalls 41a, 41 of the belt conveyor 41 are provided.
The light receiving element H receives the light beam from the light source E through the small hole formed in b, and the detection signal is supplied to the controller 93 in the computer through the conducting wire V. When is detected, it is determined to be an overflow.

Next, referring to FIG. 3, the component posture selecting section 30.
More specifically, the main part of the above will be described in more detail. The air ejection nozzle 40 is provided on one side of the belt 45 'of the belt conveyor 36 as described above, and air is ejected from the nozzle 40 opening a. However, this is connected to the compressed air source 92 via the solenoid valve 90, and the solenoid 91 receives the drive signal from the controller 93 to open the solenoid valve 90.

Further, as described above, the controller 93 in the computer is supplied with the image pickup signal from the image pickup device 37, and compares it with the parts having the correct posture stored therein to judge whether or not the front and rear posture is correct. However, when it is determined that the posture is not correct, that is, when the posture is backward, the counting is started from this determination time, and when the pulse number of the encoder 6 reaches the first predetermined pulse number, the solenoid 91 is excited to open the solenoid valve 90, and when the center of gravity G of the component m passing in front of the nozzle 40a and having an incorrect posture directly faces the nozzle opening 40a, the component is blown to the side belt conveyor 300. I am trying. Further, when an overflow is detected by the overflow detection device (composed of E and H), when the image pickup device 37 determines that the component is in the correct posture, that is, when it is determined that the component is in the forward posture, When the number of pulses of the encoder 6 reaches the second number of pulses by counting at the time of determination, the air ejection device 40 is driven. At this time, as shown in FIG. A portion a, which is located at a predetermined distance in front, is blown when it faces the nozzle opening 40a.

The component feeding apparatus according to the embodiment of the present invention is constructed as described above. Next, its operation will be described.

In FIG. 2, when the motor 13 is driven,
The rotating disk 8 rotates at a high speed in the direction shown by the arrow in FIG. 1, and the bowl 1 concentrically arranged outwardly is also moved in the same direction by the motor 6, but at a lower speed, also shown by the arrow. Rotate in the direction. Although shown only in a scattered manner for the sake of clarity, a large number of parts m to be fed are stored on the disk 8. Due to the high speed rotation of the rotating disk 8, the disk 8 is propelled radially outward by centrifugal force, and its upper edge 8
a is transferred onto the flange portion 1a of the bowl 1. Although the flange portion 1a functions as a transfer path, it rotates at a low speed but in the same direction, so that the part m placed on the flange part 1a is a part transfer path formed by the wire 29 and the side wall forming member 14. With the rotation of the bowl 1, they are conveyed in a single row with their longitudinal direction oriented in the transfer direction. While being guided by the linear side wall forming member 28, the component m is transferred onto the one-piece aligned belt conveyor 33. Here, the component m is transferred to the downstream side while maintaining the transferred posture, and is transferred to the component posture selecting unit 30. It is transferred on the upstream sorting belt conveyor 35 and on the gap S formed between it and the downstream sorting belt conveyor 36. At this time, it is known by the CCD sensor 37 for the line sensor. , The shadow is supplied to the computer in the controller as an imaging signal, and since the shadow of the component in the correct posture, that is, the forward posture is stored here,
If they match with each other, the belt 45 ′ of the sorting belt conveyor 36 on the downstream side is transferred as it is, transferred to the belt conveyor 41, and supplied one by one to the next process.

Next, when the component m having a different posture in the front-rear direction passes through the gap S, its shadow is also imaged. Since this shadow does not match the shadow stored in the computer, its posture When the output pulse of the encoder 6 reaches the first predetermined pulse by counting from the determination time point,
An electromagnetic valve connected to the air ejection nozzle 40 is opened, and air is ejected from here. As shown in FIG. 4, air is ejected from the air ejection nozzle 40 when the center of gravity G passes just before the nozzle opening 40a, and the air is surely ejected onto the belt 50 of the side belt conveyor 300 in the longitudinal direction. Is transferred without changing the posture in which it is turned in the transfer direction. As shown in FIG. 2, the belt conveyor 300 is inclined and runs upward, but as a result, the belt conveyor 300 is transferred upward and immediately after passing through the pressure feeder 51, it receives an air jet output directed in a predetermined direction and receives the rotary parts. It is transferred onto the transfer path 1a through the notch 14a formed in the side wall forming member 14 of the feeder R. At this time, the stopper 60 is fixed to the upper stationary portion so as to face the notch 14a and is indicated by the alternate long and short dash line in FIG. It is designed to be transferred while maintaining its posture. That is, this time, on the alignment belt conveyor 33, it is transferred to this in the correct posture in the front-back direction,
Therefore, since the component posture selecting unit 30 has the correct posture, it passes through the side of the air jet nozzle 40 as it is and is transferred to the belt conveyor 41.

Since the above-described operation is performed, the postures of the parts are discriminated in the conventional rotary parts feeder R,
Moreover, compared with the case where the air jet nozzle immediately removes the air from the disk 8 immediately after this, it is possible to greatly improve the supply efficiency of the components in the correct posture to be supplied to the next process.

Next, the case where the parts reach the overflow state on the conveyor 41 will be described. That is, when an overflow detection device (comprising E and H) detects an overflow of a component, this overflow detection signal is supplied to the controller 93 in the computer. Then, when the image pickup device 37 comes to the front of the air jetting device 40 in a part that is not in a predetermined posture, air is jetted when the encoder 6 counts the first predetermined number of pulses from the posture determination time as described above. As shown in FIG. 4, the components are blown off onto the adjacent belt conveyor 300 in the same posture, but the component in the correct posture is picked up by the image pickup device 37.
When the image is picked up at, the air jetting means 40 is driven when the number of pulses of the encoder 6 reaches the second predetermined number of pulses counted from this determination time of the computer. As a result, as shown in FIG. 5, air is ejected from the nozzle port 44a to the portion a in front of the center of gravity G of the part m, and as shown by an arrow Q, the air rotates around the center of gravity G, and at this time 180 degrees. As described above, even if the trolley is rotated, it collides with the rubber sagging film 11 and further rotation is suppressed, and it is transported on the belt conveyor 300 in the posture shown by the alternate long and short dash line. , And is transferred to the rotary parts feeder R in a desired posture. As long as the overflow condition continues, the components in the correct posture and the components in the incorrect posture are transferred onto the belt conveyor 300 as described above, so that the overflow condition will eventually be released in the downstream. By changing the direction of 180 degrees and transferring the posture parts onto the belt conveyor 300,
When it is supplied to the component attitude selecting device 30, it is also supplied in the correct attitude. Therefore, when the overflow is released, it is possible to supply the component having the correct posture to the next process with higher supply efficiency.

The embodiments of the present invention have been described above. Of course, the present invention is not limited to these, and various modifications can be made based on the technical idea of the present invention.

For example, although the T-shaped component m has been described as the component whose posture should be selected in the above-mentioned embodiments, the component is not limited to these, and is generally transferred along the axial direction to the front-back direction. Can be applied to all parts having different postures.

Further, in the above embodiment, the gap S is provided between the pair of posture selection belt conveyors 35 and 36, and the line sensor image pickup device 37 and the light source 38 are arranged in line with the gap S. The posture of the component m passing over the gap S is determined, but the pair of belt conveyors 3
Instead of 5, 36, a normal single belt conveyor is provided, and area sensors (line sensors capture a part of shadows that sequentially change with slit-like rays passing through slits) on both sides in the transport direction. On the other hand, the area sensor uses a two-dimensional light beam to image the shadow of the entire component at one time.) A CCD camera and a light source are arranged opposite to this CCD camera for the components conveyed on the belt conveyor. An image of the shadow is picked up by the CCD camera for area sensor, the image pickup signal is received by the computer,
It may be possible to determine whether or not the posture is correct in the front-back direction.

Further, in the above embodiment, when the output pulse of the encoder 6 reaches the first predetermined pulse number and the second predetermined pulse number in the computer, the air ejection nozzle 40 is operated under each condition. Although they are driven, the first and second predetermined pulse numbers may be freely adjustable in the computer according to the shape of the component.

Further, in the above-described embodiment, the part having the correct posture in the front-rear direction blows the portion a at the time of overflow by the air blown out from the nozzle 40a, but instead of this, the center of gravity G in FIG. Air may be blown when the position b of the one handle reaches a position just before the nozzle opening 40a.

Further, although the belt conveyor 300 is used as the component transfer means in the above embodiments, a vibrating conveyor or a vibrating feeder may be used instead.

In the above embodiment, the rubber film 11 is hung on the side of the belt conveyor 300. However, depending on the case, depending on the shape of the part, the rubber film 11 may be omitted.
A 0 degree turn is possible. Alternatively, when the vibrating conveyor or the vibrating feeder is used as described above, one of the side wall portions (on the side opposite to the belt conveyor device 47) has a large height and is blown off by the air ejection nozzle 40. It is also possible to suppress an excessive rotational moment of the parts.

[0037]

As described above, according to the parts feeding apparatus of the present invention, the parts in the rotary parts feeder R, which are stored in a large amount, are always placed in the correct posture in the front-rear direction in the next step. Can be supplied to.

[Brief description of drawings]

FIG. 1 is a plan view of a component feeding apparatus according to an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of the same.

FIG. 3 is an enlarged plan view of the main part.

FIG. 4 is an enlarged plan view for explaining the operation of the main part.

FIG. 5 is an enlarged plan view for explaining the operation of the main part.

[Explanation of symbols]

1a Parts transfer path 6 encoder 30 Parts posture selection unit 35 Posture selection belt conveyor 36 Posture selection belt conveyor 37 CCD sensor for line sensor 38 light sources 40 air jet nozzle 93 controller 300 belt conveyor R Rotary parts feeder (parts supply device)

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-5-24630 (JP, A) JP-A-2-286514 (JP, A) JP-A-2-66438 (JP, A) JP-A-60- 94185 (JP, A) JP 61-127514 (JP, A) JP 5-338773 (JP, A) Actual development 4-19554 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65G 47/00-47/20 B07C 1/00-9/00

Claims (2)

(57) [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
A 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 The side wall forming member forms a circular component transfer path, the first rotating body and the second rotating body rotate independently in the same direction, and the parts accommodated on the second rotating body are transferred to the component. A component supply device configured to move the component along the side wall forming member on the component transfer path by a centrifugal force generated by the rotation of the two rotating bodies, and the component transfer of the component supply device. a belt conveyor which is arranged in alignment with the discharge end of the road, and an imaging device disposed on opposite sides of the belt conveyor, the light source and the disposed on the downstream side of the imaging device imaging said <br/> components that are determined to be rearward facing orientation by the device base Comprising an air ejection device for eliminating the one side towards relates transfer direction of Tokonbeya device, and a part of the overflow detecting means provided downstream of the belt conveyor device, parallel to the one side of the belt conveyor device Then, the parts transfer means for transferring the parts in the opposite direction to the belt conveyor device is arranged, and the parts in the backward posture removed by the air jetting device are received by the parts transfer means in the same posture. One of a plurality of rollers around which the belt of the belt conveyor device is wound, in a component feeding device configured to transfer from the component transfer means to the component transfer path of the component supply device in a forward posture. A computer that is connected to an encoder and receives at least an image pickup signal of the image pickup device, an output of the encoder, and a detection signal of the overflow detection means. Direction before by the imaging signal
When it is determined that the Kino attitude, and the over
The flow detection means has not detected an overflow of parts
When it is determined that the air jet device is not driven, the component is allowed to proceed to the downstream side as it is, and the posture is rearward, the output pulse of the encoder is counted from the time of determining the posture of the component based on the imaging signal. Then, when the first predetermined pulse number is reached, the air ejecting device is driven to blow the component in the rearward posture to the component transferring means in the same posture, and the overflow detecting device detects the overflow. And the computer determines that the posture of the component is a forward posture, the output pulse of the encoder is counted from the time when the posture of the component is discriminated by the image pickup signal, and the second predetermined number of pulses. When it reaches, the air jetting device is driven to blow the jetted air to move the parts in the forward posture to about 18
0 degrees is reversed, the component Seioku apparatus being characterized in that so as to be transferred to the component transfer unit. 2. A parts supply device for transferring parts through a parts transfer path provided in a bowl, a parts conveyance device installed at a discharge end of the parts supply device for supplying parts to the next process, A component posture determination means for determining the front-back posture of a component provided at a predetermined position of the component transport device, and a component removal provided on the downstream side of the component posture determination means for removing the component to one side of the component transport device. Means and a component transfer device which is installed in parallel to the one side of the component transfer device and transfers the component to the component transfer path, and the component not in a predetermined front-rear posture is removed by the component removing means as described above. In a component feeding device that transfers a component to the component transfer path in a predetermined front-back posture by removing the component from the component transfer device, a component overflow detection means and a component attitude reversal elimination means are provided at a predetermined position of the component transfer device. When the overflow detection means detects the overflow of the component and the component attitude determination means determines that the front-back orientation of the component is in the predetermined direction, the front-back orientation of the component is determined by the component orientation reversal elimination means. And then remove it to the parts transfer device,
Wherein when the component attitude determination means before and after the posture of the component is determined not to be the predetermined direction by driving the parts removing means, to eliminate to the component transfer apparatus in the attitude of the or ゝ, before
The overflow detection means detects the overflow of parts.
And the component posture determination means can determine the front-back posture of the component.
When it is determined that the direction is the predetermined direction, the parts are excluded.
Without driving the means, proceed to the downstream side,
The product orientation determination means determines that the front-back orientation of the component is not in the predetermined direction.
When they are different from each other, the component removing means is driven to
A parts feeding device, characterized in that the parts feeding device is removed in the normal posture .