JP2023072844A - Vibratory part feeder, part aligning-supplying device using the same, and supply method of part - Google Patents

Abstract

To prevent supply of overlapping parts even if the parts are relatively thin.SOLUTION: A vibratory part feeder comprises: a vibratory conveyance body 24 which has a conveying passage 25 formed thereon and moves a part 14 made of a conductive material placed on the conveying passage 25 by vibrating; detection means 27 for detecting a state of the part 14 moving on the conveying passage 25; and discharge means 30 for removing the part 14 from the conveying passage 25 based on a detection output of the detection means 27. The detection means is a magnetic induction type non-contact sensor 27 which is provided in the vibratory conveyance body 24 and detects an impedance change due to separation/contact of the part 14 moving on the conveying passage 25. The discharge means 30 is constituted so as to remove the part 14 from the conveying passage 25 when the detection output of the detection means 27 exceeds a predetermined threshold value L. The magnetic induction type non-contact sensor 27 is provided to be buried in the conveying passage 25 so that a detection surface 27b is flush with the conveying passage 25.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a vibrating parts feeder and the like for conveying parts made of a conductive material. More specifically, the present invention relates to a vibrating parts feeder that can eliminate parts from being fed in an overlapping state when parts are made of conductive metal or the like, a parts aligning supply device using the vibrating parts feeder, and a parts supply method. is.

Conventionally, it is known to use a bowl type vibrating parts feeder or a linear type vibrating parts feeder as means for aligning and supplying parts. In a bowl-type vibrating parts feeder, a plurality of parts are put into a bowl that constitutes a movable part, and the bowl that vibrates in the circumferential direction aligns the parts put in the bowl and feeds them in the vibrating direction. configured for conveying and feeding.

When the parts supply path is long, a linear vibrating parts feeder having a straight conveying path is used, and the parts aligned by the bowl-type vibrating parts feeder are conveyed straight in the horizontal direction, for example. Are known.

Here, in these vibrating parts feeders, the distance to the parts is usually measured using a detection means such as an optical sensor so that the parts are not conveyed in an overlapping state, and the overlapping state of the parts is detected from the detection output. Detect and eject overlapping parts, or eliminate overlapping parts using a physical shutter to prevent parts from being supplied in an overlapping state. (see, for example, Patent Document 1)

JP-A-10-81410

However, as a means of conveying parts using a bowl-type vibrating parts feeder or a linear-type vibrating parts feeder, since the parts are conveyed while vibrating, a method of measuring the distance to the parts using a detection means such as an optical sensor is used. However, if the vibration width of the vibrating parts feeder exceeds the thickness of the parts, it may not be possible to detect overlapping parts.

That is, when trying to detect the state of parts by an optical sensor, the position of the parts exceeding the vibration width is measured in consideration of the vibration of the vibrating parts feeder. However, if the thickness of the parts to be detected is thinner than the vibration width, it is rare that the parts exceed the vibration width, making it difficult to detect overlapping parts with a high probability. rice field.

For example, if the vibration width of the vibrating parts feeder is 0.1 mm or more, and the thickness of the parts is less than that, for example, 0.03 mm, it is assumed that the relatively thin parts overlap. However, the increase in thickness due to the overlap is within the range of the vibration width, and the problem arises that the overlap cannot be determined and eliminated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vibrating parts feeder capable of preventing overlapping parts from being fed, even if the parts are relatively thin, and a parts aligning and feeding apparatus and a parts feeding method using the vibrating parts feeder.

The present invention comprises a vibrating carrier that vibrates a part made of a conductive material placed on the carrier path on which a carrier path is formed, a detection means that detects the state of the part that moves on the carrier path, and a detection means. This is an improvement of the vibrating parts feeder provided with ejection means for removing parts from the conveying path based on the detection output.

Its characteristic configuration is that the detection means is a magnetic induction type non-contact sensor that is provided on the vibrating carrier and detects a change in impedance accompanying the separation and contact of the parts moving on the transfer path, and the discharge means is the detection means. It is configured to remove the part from the transport path when the detection output exceeds a predetermined threshold.

The magnetic induction non-contact sensor is preferably embedded in the transport path so that the detection surface is flush with the transport path.

Another aspect of the present invention is a linear vibrating parts feeder having a vibrating conveying body in which a straight conveying path is formed, a bowl-type vibrating parts feeder that sequentially supplies parts to the end of the conveying path, and a The parts aligning and supplying device is provided with a return vibrating parts feeder for returning detached parts to the bowl type vibrating parts feeder.

Still another aspect of the present invention is an improvement in a method of supplying parts made of a conductive material, in which the parts are placed on a conveying path of a vibrating vibrating carrier and moved.

Its characteristic point is that it uses a magnetic induction type non-contact sensor to detect the change in impedance accompanying the separation and contact of parts moving on the conveying path, and when the detection output of the magnetic induction type non-contact sensor exceeds a predetermined threshold value This is where the parts are removed from the transport path.

In the vibrating parts feeder, parts aligning supply apparatus and parts supply method using the vibrating parts feeder of the present invention, the state of the parts is detected by the magnetic induction type non-contact sensor, so the thickness of the parts to be detected is greater than the vibration width. Even if the parts are thin, it is possible to detect the overlapping of the parts with a high probability. It is possible to reliably prevent the supply of parts.

1 is a top view of a parts alignment supply device according to an embodiment of the present invention; FIG. It is a front view of the parts alignment supply device. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1 showing the detection means; FIG. 2 is a cross-sectional view taken along the line BB of FIG. 1 showing the discharging means; It is a figure which shows the state in which the single part is conveyed to the conveyance path in a time series. FIG. 6 is a view corresponding to FIG. 5 showing in time series a state in which a plurality of parts are overlapped and transported on the transport path;

Next, a mode for carrying out the present invention will be described in detail based on the drawings.

1 and 2 show a parts alignment supply device 9 according to the present invention. This parts aligning supply device 9 comprises a linear vibrating parts feeder 20 having a vibrating transport body 24 on which a straight transport path 25 is formed, and parts 14 are sequentially fed to the starting end of the transport path 25 in the linear vibrating parts feeder 20 . A bowl-type vibrating parts feeder 10 for supplying and a return vibrating parts feeder 40 for returning parts 14 removed from a conveying path 25 in the linear vibrating parts feeder 20 to the bowl-type vibrating parts feeder 10 are provided.

A bowl-type vibrating parts feeder 10 includes a bowl 11 into which parts 14 are fed, and a vibrator 12 (FIG. 2) that vibrates the bowl 11 in the circumferential direction. As shown in FIG. 1, a spiral conveying path 13 is formed on the inner periphery of the bowl 11, and the bowl-type vibrating parts feeder 10 vibrates the bowl 11 in the circumferential direction by means of a vibrator 12, thereby feeding parts into the bowl 11. It is configured to convey the assembled part 14 along the spiral conveying path 13 formed on the inner periphery thereof.

An electromagnet and a piezoelectric element are exemplified as the vibrator 12 . However, even if the vibration exciter 12 is a so-called mechanical type that electrically drives a mechanical mechanism such as a cam or a link to vibrate the bowl 11, it is a so-called pneumatic type that vibrates the bowl 11 using air. can be Here, reference numeral 12a in FIG. 2 denotes a rubber vibration isolator 12a that absorbs the vibration of the vibration exciter 12 that vibrates the bowl 11 and reduces the amount of vibration transmitted to the installation location 8. As shown in FIG.

As shown in FIG. 1, the bowl 11 has a peripheral wall 11b rising from the circumference of the disk-shaped bottom 11a so as to form a conical shape. It is formed so as to rise spirally on the inner surface of the peripheral wall 11b. As a result, when the bowl 11 is vibrated by the vibrator 12 (FIG. 2), the plurality of parts 14 put into the bowl 11 is conveyed along the spiral conveying path 13 by the bowl 11 vibrating in the circumferential direction. configured to allow

The peripheral wall 11b is formed with a notch 11c into which the starting end of the vibrating conveying body 24 of the linear vibrating parts feeder 20 enters, and the spiral conveying path 13 is formed extending to the notch 11c. That is, the terminal end of the spiral conveying path 13 formed in the notch 11c is configured to be the part outlet 11d of the bowl-type vibrating parts feeder 10. As shown in FIG.

The parts 14 in this embodiment are thin plates made of conductive metal and have a rectangular shape. As shown in FIG. The parts 14 are vibrated and aligned in the circumferential direction, and the aligned parts 14 are sequentially carried out from a part discharge port 11d provided on the outer periphery.

The linear vibrating parts feeder 20 connected to the bowl-type vibrating parts feeder 10 conveys the parts 14 aligned and delivered by the bowl-type vibrating parts feeder 10 straight in the horizontal direction, As shown in FIG. 2, it has a base 21 installed at an installation location 8 and having a vibration exciter 22 provided thereon, and a linear vibration base 23 which reciprocates in the longitudinal direction by the vibration exciter 22 .

The base 21 is placed on the installation place 8, and the vibration exciter 22 is exemplified by an electromagnet and a piezoelectric element. However, like the bowl-type vibrating parts feeder 10, the vibrator 22 is a so-called mechanical type that electrically drives mechanical mechanisms such as cams and links to vibrate the linear vibrating base 23. A so-called pneumatic system that vibrates the linear vibration base 23 using air may be used.

The linear vibrating base 23 is provided with a vibrating carrier 24 that vibrates together with the linear vibrating base 23 to transport the mounted parts 14 in the longitudinal direction. The vibrating carrier 24 in the linear vibrating parts feeder 20 is a rod-shaped member extending in the carrying direction and having a relatively long length. .

As shown in FIGS. 1 and 2, the linear vibrating parts feeder 20 has a bowl-type vibrating parts feeder 10 in which the starting end of the vibrating carrier 24 is inserted into the notch 11c of the bowl 11 of the bowl-type vibrating parts feeder 10. The base 21 is installed at the installation place 8 so as to be connected to the vibrating parts feeder 10 .

That is, the linear vibrating parts are mounted so that the parts 14 carried out from the part outlet 11d of the bowl-type vibrating parts feeder 10 are mounted at the starting end of the linear conveying path 25 extending in the horizontal direction of the linear vibrating parts feeder 20. A feeder 20 is installed adjacent to the bowl-type vibrating parts feeder 10 .

As shown in FIGS. 3 and 4, the straight conveying path 25 in the vibrating conveying body 24 includes a back support surface portion 25a that supports the back surface of the rectangular part 14 in an inclined state, and a back support surface portion 25a that is perpendicular to the back support surface portion 25a. A long side support surface portion 25b for supporting the long side of the part 14 is formed.

Therefore, the parts 14 guided from the bowl-type vibrating parts feeder 10 to the linear conveying path 25 of the linear vibrating parts feeder 20 have their back surfaces supported by the back surface supporting surface portion 25a, and the long sides perpendicular to the back surface are the long sides. It is configured to be conveyed in the longitudinal direction along the straight conveying path 25 of the linear vibrating parts feeder 20 in an inclined state so as to be supported by the side support surface portion 25b.

As shown in FIGS. 1 and 2, the vibrating transporter 24 is provided with a detection means 27 for detecting the state of the parts 14 transported on the linear transport path 25, and based on the detection output of the detection means 27. A discharge means 30 is provided for removing the target part 14 from the linear conveying path 25 by pressing.

A characteristic configuration of the present invention is that the detection means is a non-contact sensor 27 that is provided on the vibration carrier 24 and detects contact/separation of the parts 14 transported on the linear transport path 25, and the discharge means 30 is: The part 14 is removed from the linear conveying path 25 when the detection output of the detecting means 27 exceeds a predetermined threshold value L (FIGS. 5 and 6).

Here, as the non-contact sensor 27, there are, for example, a high-frequency oscillation type using electromagnetic induction, a magnetic type using a magnet, and a capacitance type using changes in capacitance. In the present embodiment, in which the parts 14 consisting of shall be used.

As shown in FIG. 3, the magnetic induction non-contact sensor 27 used in this embodiment is provided with a detection coil (not shown) necessary for electromagnetic induction at the tip of a cylindrical main body 27a. The tip edge of the portion 27a is used as the detection surface 27b. The magnetic induction non-contact sensor 27 is embedded in the linear transport path 25 so that its detection surface 27b is flush with the linear transport path 25. As shown in FIG.

Specifically, the vibration carrier 24 is formed with an insertion hole 24a having an inner diameter slightly larger than the outer diameter of the non-contact sensor 27 so as to be perpendicular to the back support surface portion 25a. The cylindrical main body 27a of the contact sensor 27 is inserted and fixed to the insertion hole 24a so that the detection surface 27b at the tip thereof is flush with the rear surface support surface 25a of the linear transport path 25. provided.

The detection output of the detection means 27 thus provided is connected to the control input of the controller 31, and the controller 31 is arranged to control the discharge means 30 (FIG. 1) based on the detection output of this detection means 27. .

The ejecting means 30 in this embodiment removes the target part 14 from the linear conveying path 25 by air pressure. As shown in FIGS. A blowout hole 24b is formed adjacent to the downstream side of the insertion hole 24a so as to be orthogonal to the back support surface portion 25a of the path 25, and as shown in FIG. A supply pipe 33 is connected.

The air supply pipe 33 is provided with a normally closed valve 34 to which a control output from the controller 31 is connected. The controller 31 opens the valve 34 for a short period of time to release air from the compressor 32 when the detection output of the magnetic induction non-contact sensor 27, which is the detection means, exceeds a predetermined threshold value L (FIGS. 5 and 6). Compressed air is ejected from the blowout hole 24b through the supply pipe 33, and as shown in the dashed line of FIG. 4 and FIG. The part 14 is blown away from the linear conveying path 25 as shown by the solid line arrow in FIG. 4 and FIG.

As shown in FIGS. 1 and 2, this linear type vibrating parts feeder 20 is adjacent to a return vibrating parts feeder 40 which receives the parts 14 removed from the linear conveying path 25 and returns them to the bowl type vibrating parts feeder 10. and is provided.

The return vibrating parts feeder 40 has the same structure as the linear vibrating parts feeder 20 except for the shape of the vibrating carrier 44. As shown in FIGS. is formed in a planar shape forming a conveying path 45, and the return vibrating parts feeder 40 is arranged so that the parts 14 removed from the linear conveying path 25 of the linear type vibrating parts feeder 20 are dropped and mounted on the conveying path 45. is adjacent to the linear type vibrating parts feeder 20, and is provided so that the discharge end of its conveying path 45 reaches the bowl 11 of the bowl type vibrating parts feeder 10 (FIG. 1).

The configuration of this return vibrating parts feeder 40 other than the shape of the vibrating conveying body 44 is similar to that of the linear vibrating parts feeder 20 except that the conveying direction is directed toward the bowl type vibrating parts feeder 10. They have the same structure. For this reason, the reference numerals of the respective members of the return vibrating parts feeder 40 are given by adding 20 to the reference numerals of the target members of the linear vibrating parts feeder 20, and further description thereof will be omitted.

Next, the operation of the parts aligning/supplying apparatus configured as described above will be described.

As shown in FIG. 1, parts 14 to be aligned and supplied by this parts aligning supply device 9 are fed into a bowl 11 in a bowl-type vibrating parts feeder 10 . Then, the bowl-type vibrating parts feeder 10 is operated to vibrate the bowl 11 in the circumferential direction by means of the vibrator 12, thereby aligning the plurality of parts 14 fed into the bowl 11 along the spiral conveying path 13. It is conveyed in the circumferential direction.

In the linear vibrating parts feeder 20, the linear vibrating base 23 is vibrated by the vibration exciter 22 at the same time as the bowl-type vibrating parts feeder 10 is operated. As shown in FIG. 1, due to the vibration of the linear vibrating base 23, the parts are aligned by the bowl-type vibrating parts feeder 10, and the straight conveying path in the vibrating conveying body 24 of the linear vibrating parts feeder 20 extends from the part discharge port 11d. 25 to convey the mounted parts 14 straight in the horizontal direction.

As shown in FIGS. 3 and 4, the linear conveying path 25 in the vibrating conveying body 24 of the linear vibrating parts feeder 20 includes a back surface supporting surface portion 25a that supports the back surface of the rectangular part 14 in a slanted state, and the back surface portion 25a. Since the support surface portion 25a has the long side support surface portion 25b that supports the long side of the part 14 perpendicular to the support surface portion 25a, the back surface of the part 14 guided on the linear conveying path 25 is supported by the back surface support surface portion 25a. The long side perpendicular to the back surface is transported in the longitudinal direction while being inclined so that it is supported by the long side supporting surface portion 25b.

As shown in FIG. 1, the vibrating conveying body 24 of the linear vibrating parts feeder 20 is provided with a non-contact sensor 27 for detecting the state of the parts 14 conveyed on the linear conveying path 25. The non-contact sensor 27 Therefore, when the detection output of the non-contact sensor 27 exceeds a predetermined threshold value L (FIGS. 5 and 6), the ejection means 30 The part 14 is to be removed from the linear conveying path 25 .

Here, the detection means in this embodiment is the magnetic induction type non-contact sensor 27 that detects the change in impedance accompanying the separation and contact of the metal part 14, and since the part 14 is a thin steel plate, When the part 14 moves, the part 14 approaches the magnetic induction non-contact sensor 27, passes near it, and then separates. The detection output of the non-contact sensor 27 will change.

That is, as shown in FIG. 5(a), when the part 14 moves on the linear conveying path 25 and approaches the magnetic induction type non-contact sensor 27, its detection output, that is, the value of the impedance to be detected increases. As shown in 5 (b), the part 14 shows the maximum value when passing through the magnetic induction non-contact sensor 27, and as shown in FIG. As 14 moves apart, its detection output will decrease.

The value detected by the magnetic induction type non-contact sensor 27 is the change in impedance accompanying the separation and contact of the parts 14. Therefore, as long as the parts 14 are made of a conductive material, it will change depending on the presence or absence of vibration of the vibration carrier 24. There is no such thing. Therefore, when the part 14 has passed, the fact is reliably detected.

On the other hand, the magnetic induction non-contact sensor 27 detects magnetic loss due to eddy currents generated on the surface of the part 14, which is a conductor, under the influence of a magnetic field generated by a detection coil (not shown) required for electromagnetic induction. As shown in FIG. 6, when the parts 14 made of conductive material are overlapped, the impedance to be detected also increases.

That is, as shown in FIG. 6(a), when a plurality of parts 14 are moved on the linear conveying path 25 and approach the magnetic induction non-contact sensor 27, the magnetic induction non-contact sensor 27 detects them. The value of impedance is greater than when a single moving part 14 approaches without overlapping.

Then, as shown in FIG. 6(b), although the maximum value is shown when passing through the magnetic induction type non-contact sensor 27, even at this maximum value, the single parts that do not overlap 6(c), when the part 14 moves away from the magnetic induction type non-contact sensor 27, the detection output decreases. Become.

Therefore, as shown in FIG. 5, the detection output detected when a single non-overlapping part 14 passes does not reach, but as shown in FIG. A predetermined threshold value L is set to exceed the detection output detected when the conveying path 25 is moved to approach and pass the magnetic induction type non-contact sensor 27, and the detection output of the magnetic induction type non-contact sensor 27 is set. However, when the predetermined threshold value L is exceeded, the ejecting means 30 is driven to remove the parts 14 from the linear conveying path 25 .

That is, this threshold value L is stored in the memory 31a of the controller 31, and this controller 31 compares the detection output of the magnetic induction type non-contact sensor 27 with this threshold value L, and when the detection output exceeds this predetermined threshold value L to drive the excluding means 30. Therefore, as shown in FIG. 5(c), when the single part 14 passes, the detection output of the magnetic induction type non-contact sensor 27 does not reach the predetermined threshold value L, so the excluding means 30 is not driven. Instead, as shown in FIG. 5(d), the single part 14 is fed while moving along the linear conveying path 25 as it is.

On the other hand, when a plurality of parts 14 are conveyed in an overlapping state and the detection output of the magnetic induction type non-contact sensor 27, which is the detection means, exceeds a predetermined threshold value L, the controller 31 opens the valve 34 for a short time, Compressed air supplied from the compressor 32 through the air supply pipe 33 is ejected from the blowout hole 24b, and passes through the magnetic induction non-contact sensor 27 as shown in the dashed line of FIG. 4 and FIG. 6(c). The parts 14 located so as to block the blowout holes 24b are blown away as shown by the solid line arrow in FIG. 4 and FIG.

The return vibrating parts feeder 40 in the parts aligning and supplying device 9 operates simultaneously with the operation of the linear vibrating parts feeder 20, and as shown in FIG. The parts 14 dropped by the vibration carrier 44 are received by the return conveying path 45 of the vibrating carrier 44 and returned to the bowl type vibrating parts feeder 10 shown in FIG.

As described above, in the present invention, the state of the part 14 is detected by the non-contact sensor 27 instead of the conventionally used optical sensor. Even so, it is possible to detect the overlap of the parts 14 with a high probability.

Therefore, when it is found that the parts 14 overlap because the detection output exceeds the predetermined threshold value L, the ejecting means 30 removes the parts 14 from the linear conveying path 25. Therefore, even if the parts 14 are relatively thin, Thus, it becomes possible to achieve the object of the present invention, which is to reliably prevent the supply of overlapping parts 14 .

Here, when the detection means is the magnetic induction type non-contact sensor 27 for detecting changes in impedance, the parts 14 moving on the linear conveying path 25 do not overlap each other, but move very close to each other. Also the change in impedance will increase. For this reason, on the linear conveying path 25 of the vibrating conveying body 24 in the linear vibrating parts feeder 20, a plurality of parts 14 are held at intervals that do not affect changes in impedance detected by the magnetic induction non-contact sensor 27. They must be moved sequentially.

However, this parts aligning supply device 9 moves and mounts the parts 14 aligned by the bowl-type vibrating parts feeder 10 from the discharge port 11d to the linear conveying path 25 of the linear-type vibrating parts feeder 20, so that the bowl-type vibration By controlling the parts feeder 10 to sequentially load a plurality of parts 14 on the linear conveying path 25 of the linear vibrating parts feeder 20 while keeping a predetermined interval, the linear conveying path 25 can be moved while the parts 14 are close to each other. You can avoid things like moving.

In addition, since this parts aligning supply device 9 is provided with a return vibrating parts feeder 40 that receives the parts 14 removed from the linear conveying path 25 of the linear vibrating parts feeder 20 and returns them to the bowl type vibrating parts feeder 10, The parts 14 removed from the linear conveying path 25 are supplied again from the bowl type vibrating parts feeder 10 to the linear type vibrating parts feeder 20, so that the removed parts 14 are not wasted.

In the above-described embodiment, the blowout hole 24b constituting the discharge means 30 is formed adjacent to the downstream side of the non-contact sensor 27, and the compressed air from the compressor 32 is blown out therefrom. As long as the part 14 can be removed from the conveying path 25, the part 30 is not limited to compressed air, and may be removed mechanically.

Further, even when compressed air is used, as long as the part 14 can be removed from the conveying path 25, the blowout hole 24b may be formed in the vicinity of the non-contact sensor 27 or in the downstream side away from the non-contact sensor 27 instead of adjacent to it. , compressed air stored in an air tank instead of the compressor 32 may be blown out.

9 parts alignment supply device 10 bowl type vibrating parts feeder 14 parts 20 linear type vibrating parts feeder 25 linear conveying path (conveying path)
24 vibration carrier 27 magnetic induction type non-contact sensor (detection means)
30 discharge means 40 return vibration parts feeder

Claims (4)

A vibrating carrier (24), which is formed with a carrier path (25) and moves the part (14) made of a conductive material placed on the carrier path (25) by vibrating, and moves the carrier path (25). detection means (27) for detecting the state of the parts (14); and discharge means (30) for removing the parts (14) from the conveying path (25) based on the detection output of the detection means (27). In the vibrating parts feeder equipped with
The detection means is a magnetic induction non-contact sensor (27) provided on the vibration carrier (24) and configured to detect a change in impedance caused by contact and separation of the part (14) moving on the carrier path (25). There is
The discharging means (30) is configured to remove the part (14) from the conveying path (25) when the detection output of the detecting means (27) exceeds a predetermined threshold value (L). and vibrating parts feeder. 2. The vibrating parts feeder according to claim 1, wherein the magnetic induction non-contact sensor (27) is embedded in the conveying path (25) so that the detection surface (27b) is flush with the conveying path (25). . A linear vibrating parts feeder (20) according to claim 1 or 2, which has a vibrating transport body (24) formed with a straight transport path (25);
A bowl-type vibrating parts feeder (10) that sequentially supplies parts (14) to the end of the conveying path (25);
and a return vibrating parts feeder (40) for returning the parts (14) removed from the conveying path (25) to the bowl-type vibrating parts feeder (10). In a method for supplying parts (14) made of a conductive material, the parts (14) are placed on a transport path (25) of a vibrating vibration carrier (24) and moved,
Detecting a change in impedance caused by the separation and contact of the part (14) moving on the transport path (25) using a magnetic induction type non-contact sensor (27),
A method of supplying parts, wherein the part (14) is removed from the conveying path (25) when the detection output of the magnetic induction non-contact sensor (27) exceeds a predetermined threshold value (L).

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