JPH0240563B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibrating parts feeder, also called a linear parts feeder.

Recently, various linear parts feeders have been developed, but in all of them, the first
A trough and a second trough are provided adjacent to the trough, each supported by a leaf spring, and vibrated to transport the component in opposite directions under the excitation force of the electromagnetic drive section. A parts sorting means is provided in the second trough, and parts that are not sorted or whose posture is not corrected by this sorting means are returned to the first trough and guided to the second trough again. , is repeatedly subjected to the sorting action of the parts sorting means. The sorted parts are supplied to the next process from the second trough.

However, in order to improve the efficiency of parts supply, the widths of the first trough and the second trough must be adjusted appropriately in advance. In the linear parts feeder previously developed by the present applicant, independent electromagnetic drive units are provided for the first trough and the second trough, and these are connected to a commercial AC power source (for example,
Hz) is connected, and the amplitudes of the first trough and the second trough are adjusted by controlling the amount of current to the electromagnet drive unit by a separate control means.
The reaction forces caused by the vibrations of the first and second troughs are transmitted to the other trough via the bases to which the leaf springs are fixed, so that they interfere with each other. In other words, even if the width of one trough is adjusted appropriately, this adjustment will change the width of the other trough, and even if the width of the other trough is adjusted appropriately, this adjustment will change the width of one trough. The amplitude changes. In particular, the second trough is equipped with a part sorting means, and if the amplitude, which has been adjusted to achieve a very efficient sorting effect, changes, it must be adjusted again. As described above, with conventional linear parts feeders, it is extremely difficult to optimally adjust the swing width.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a vibrating component feeder that allows easy adjustment of the vibration width. According to the present invention, this object includes: a base supported by an anti-vibration spring on the base; a first electromagnet drive section and a second electromagnet drive section provided on the base; a first trough that extends and is connected to the base by a first elastic means so as to vibrate in response to the excitation force of the first electromagnetic drive unit to transfer the component in one direction; The trough extends, is disposed close to the first trough, and includes a parts handling means, and vibrates in response to the excitation force of the second electromagnet drive unit to transport the parts in a direction opposite to the one direction. and a second trough connected in such a manner that the parts sorted by the parts sorting means of the second trough are supplied to the outside from the second trough, and the parts that are not sorted are supplied to the outside from the second trough. In the vibrating parts feeder, the vibrating parts are returned to the trough and guided to the second trough again,
A first resonant frequency determined by the spring constant of the first elastic means and the mass of the first trough, and a first resonance frequency determined by the spring constant of the second elastic means and the mass of the second trough. The spring constants of the first elastic means and the second elastic means, the first trough, and the second
the mass of the trough is set, and the first electromagnet drive unit has a first drive frequency close to the first resonance frequency;
This is achieved by a vibrating component feeder characterized in that the second electromagnetic drive section is driven and controlled independently of each other at a second drive frequency close to the second resonance frequency.

Hereinafter, details of the present invention will be explained based on illustrated embodiments.

The drawing shows a vibrating five-row component feeding machine according to an embodiment of the present invention, which is applied to feeding small electronic components such as chip resistors and chip capacitors. FIG. 1 is a plan view of the entire vibrating five-row component feeder of this embodiment. In the figure, the component to be fed is a chip capacitor m, which is approximately rectangular in shape.
It has a size of 0.6 x 1.6 x 3.2 mm, but in order to make the diagrams easier to understand in Figure 1 and the following figures, the actual size of each part of this parts feeder is not necessarily the same. It's not a percentage. Also, actually the parts m
Each part is transported at a high density,
Again, in order to make the figures easier to understand, they are shown sporadically in each figure.

The movable side of the parts feeder according to this embodiment is mainly subjected to vibrations so as to transfer the parts m to the left in FIG.
A component distributing section 2 which is separate from but close to the supply trough 1 and receives vibrations to transfer the component m to the right; is integrally fixed to the component distributing section 2 and also transfers the component m to the right. A parts sorting section 3 that receives vibrations while being transferred to a part, a parts receiving section 4 integrally fixed below this parts sorting section 3, and a parts sorting section 3
A discharge section 71 and a supply parts standby section 7 are connected and fixed to the
2. It consists of a falling parts receiving part 73 and a falling parts guide part 74 connected and fixed to the above-mentioned supply trough 1.

The entire parts feeder is supported on a base 5, as shown in FIGS. 2 and 3, and the base 5 is supported on the base by a vibration isolating rubber 6. As shown in FIG. 3 of the base 5, there is a first vibration drive unit 7 for vibrating the parts distributing part 2, the parts feeding part 3, the parts receiving part 4, etc. which are integrally fixed as described above. A second vibration driving section 9 for vibrating the supply truck 1 side is provided on the right side of the sub-base 8 fixed on the base 5, and is provided on the left side of the base 5 in FIG.

The first vibration drive unit 7 and the second vibration drive unit 9 are electromagnetic drive units.
The upper end is fixed to the left and right end faces of the plate spring mounting block 14 in FIG.
In FIG. 2, it is fixed to the left and right end faces. The leaf spring mounting block 14 is fixed to the component distributing section 2, the component sorting section 3, and the component receiving section 4 via the first coupling plate 17. The electromagnet 1 is mounted on the electromagnet mounting base 13.
5 is fixed, and a movable core 1 is opposite to this.
6 is fixed to the leaf spring mounting block 14.

The second vibration drive unit 9 is also constructed in the same manner as the first vibration drive unit 7, and the upper end portions of the stacked leaf springs 18, which are a pair on the front and rear and left and right sides, are connected to the second vibration drive unit 22 of the leaf spring mounting block 22 via spacers and washers 19. In the figure, it is fixed to the left and right end surfaces with bolts, and the lower end is fixed to the left and right end surfaces of the electromagnet mounting base 21 in FIG. 2 via similar spacers and washers 20. The leaf spring mounting block 22 is fixed to the supply track 1 via a second coupling plate 25. An electromagnet 24 is fixed to the electromagnet mounting base 21, and a movable core 23 is fixed to the leaf spring mounting block 22 in opposition to the electromagnet 24.

The coils 15a and 24a of the electromagnets 15 and 24 of the first vibration drive unit 7 and the second vibration drive unit 9 are connected via lead wires 102 and 101, respectively, to a controller whose circuit diagram is shown in FIGS. 12A and 12B. 1
04, 103, and the controller 104, 103
A common AC power supply 105 is connected to both. The frequency of the AC power supply 105 is, for example, 50Hz, and in the controller 103, this AC current is half-wave rectified by a diode 106, as shown in FIG.
07, the coil 2 of the electromagnet 24
4a. In addition, the controller 104
As shown in Figure B, the voltage is adjusted by a variable resistor 108 and supplied to the coil 15a of the electromagnet 15. As a result, 50°
An AC attraction force of 100 Hz is generated between the movable core 16 and the electromagnet 15. Therefore, the parts distribution section 2, the parts sorting section 3, and the parts receiving section 4
etc. are the leaf spring mounting block 14 and the first coupling plate 1.
7, it is vibrated at 100Hz in the direction shown by the dotted arrow a. On the other hand, the supply trough 1 side is connected to the arrow b via the leaf spring mounting block 22 and the second coupling plate 25.
It is vibrated at 50Hz in the direction shown by .

An opening 27 communicating with the vibration receiving section 4 is formed at the right end of the inner side wall 26 of the supply trough 1 in FIGS. 1 and 6, and this right end serves as a component supply end. The feed trough 1 has a transfer surface 28 inclined upwardly from the feed end at, for example, 3.5 degrees, which is articulated with a horizontal surface 29 at the left end. Transfer surface 2
8 is further inclined outwardly, for example at 3.5 degrees, as shown in FIG. The left end of the transfer surface 28 serves as a component discharge end, and an opening 37 communicating with the component distribution section 2 is formed in the inner side wall 26 corresponding to this position. As shown in FIG. 1, the left end portion 30a of the outer side wall portion 30 has an inner wall surface formed in an arc shape, and together with a stopper member 39 fixed to a corner of the component distribution portion 2, the component m is moved into the component distribution portion 2. Starting end 38 of five rows of distribution tracks to be described later
The role is to guide people.

The parts distribution section 2 has five rows of distribution tracks 31, 3.
2, 33, 34, and 35 are formed radially from the starting end 38 so as to be connected to each track of the parts sorting section 3, which will be described later.As shown in FIG. A downward slope (e.g. 8 degrees) to the left in terms of direction (to the right in Figure 7)
are doing. Therefore, the part m is connected to each track 32 to 3.
The parts are transferred toward the parts sorting section 3 so as to be biased towards the side walls 32a to 35a or the protruding wall part 36 of the parts. The distribution tracks 32-35 are also inclined slightly upward (eg, 2 degrees) in the direction of transport.

Five parallel rows of sorting tracks 4 are provided in the parts sorting section 3.
0, 41, 42, 43, and 44 are formed, and these transfer surfaces are inclined downwardly to the left (to the right in FIG. 8) with respect to the transfer direction of the part m, as shown in FIG. Therefore, part m is attached to each track 4.
1 to 44 side wall portions 41a to 44a or protruding wall portion 4
It is transferred to the right side in FIG. As clearly shown in FIG. 1, the discharge end of each of the tracks 31 to 35 of the parts distributing section 2 is located on the right side (in FIG. are connected in a staggered manner (towards the bottom), which allows the large number of parts m to flow smoothly. Even if it is not shown in the figure, parts m are distributed on the distribution tracks 31 to 35 at high density.
When the parts m are transferred, the parts m are supplied from the distribution tracks 31 to 35 to each of the tracks 40 to 44 of the parts sorting section 3 in multiple rows and in an overlapping state. If this is not done, there is a risk that the pushing force between the parts m will become stronger due to the transfer force, and the parts m will no longer flow smoothly.

An elongated stepped opening 46-50 is formed near the feed end of each shunting track 40-44 along its transfer surface and communicates with component receiving portion 4, which will be described in more detail below. The stepped openings 46 to 50 are narrow openings 51
~ 55 and wide openings 56 to 60, which allow parts to be moved along the narrow openings 51 to 55 in the distribution tracks 40 to 44, but smaller than the length of the part m (3.2 mm in the example), but wider than the width. Larger width tracks are formed as shown in FIGS. 9A and 9B, and narrower track portions 40b-44b are formed along the wider openings 56-60 as shown in FIGS. 10A and 10B. It is formed. The width of these narrow tracks 40b to 44b is the width of the part m (in the embodiment
1.6mm). In FIG. 1, from the right end of the wide openings 56-60,
The narrow track portions 40b to 44b reach the discharge end of 4.
Grooves 40c to 44c are formed which are connected to the grooves 40c to 44c.
The width of these grooves 40c to 44c is sufficiently larger than the width of component m, for example, 1.9 mm. Further, the depth is sufficiently larger than the thickness of the component m (0.6 mm in this embodiment), for example, 0.9 mm.

In addition, the stepped openings 46 of the transfer tracks 40, 44
A wiper plate 61 is fixed to the parts sorting section 3 so as to extend diagonally across the upper part of the wiper plate 50 . wiper plate 6
The distance between the lower edge of the part 1 and the transport surface of the shuffling tracks 40-44 is greater than the thickness of the part m (0.6 mm in the example) and less than twice this thickness.

A holding plate 62 is attached from near the right end in FIG. 1 of the stepped openings 46 to 50 of each track 40 to 44 over the discharge end, thereby covering the track grooves 40c to 44c. In FIG. 1, the left edge 62a of the holding plate 62 is inclined from a direction perpendicular to the direction of transport of the parts m, thereby making it easier for parts m that are not in a predetermined feeding state to fall into the openings 46 to 50. There is.

Next, the component receiving section 4 fixed to the lower part of the component sorting section 3 will be explained with reference to FIGS. 11A and 11B.

The component receiving portion 4 has mounting portions 63 and 65 whose upper surfaces are horizontal, and the screw holes or through holes provided in these portions are used to attach the component receiving portion 4 to the upper component sorting portion 3 and the lower first coupling plate 17. Fixed. A slope 4 that slopes downward toward the side wall 66 is formed between the mounting parts 63 and 65, and the side wall 66 and the mounting part 6
3, an opening 67 is formed between the two. This opening 67
is aligned with the opening 27 of the supply trough 1 described above.

A discharge section 71 is further connected and fixed to the parts sorting section 3, and as shown in FIGS. As clearly shown in FIG. 4, grooves 77 to 81 are formed in the groove forming plate 76 so as to converge at predetermined positions 77a to 81a of the supplied component waiting section 72. These grooves 77-81 are connected to the track grooves 40c-44c of the parts sorting section 3 on the upstream side.

A fallen parts receiving part 73 is further connected and fixed to the discharge part 71, and this is constituted by a trough 83 having a guide groove 84 that slopes downward on the side of the supply trough 1, or is formed by a trough 83 having a guide groove 84 that slopes downward on the side of the supply trough 1. A stopper 82 is fixed to. This stopper 82 causes the parts that have reached the parts waiting positions 77a to 81a, which are the discharge ends of the discharge part 71, to be stopped there. Although not shown, a vacuum suction device for the next process is provided from the right side of FIG. It descends and vacuum-chucks the components in the component standby positions 77a to 81a, and after rising to a certain position, supplies these components to some manufacturing device by passing over the falling component receiving section 73 to the right in FIG. I'm starting to do that. Therefore, the fallen component receiving section 73 is configured to receive components that have fallen from the vacuum suction device for some reason.

Groove forming plates 76 are provided at the component standby positions 77a to 81a.
Holes 77b to 81b are formed through the holes 77b to 81b, and nozzles 91 to 9 are formed at their lower ends as shown in FIG.
5 are fixed, and electromagnetic valves 96 to 100 are connected to these via piping. When these electromagnetic valves 96 are "open", the components in the component standby positions 77a to 81a are vacuum-suctioned and held in a predetermined posture. A solenoid valve is also connected to a vacuum suction device (not shown) that reciprocates above the fallen component receiver 73, and the opening and closing of this solenoid valve operates in conjunction with the opening and closing operations of the solenoid valves 96 to 100 described above. shall be.

A falling parts guide section 74 is fixed to the supply side end of the supply trough 1, and this is constituted by a trough 86 having an inverted L-shaped bent groove 87, and a lateral transfer path portion of the bent groove 87. The groove 87a is aligned with the groove 84 of the fallen component receiving portion 73 described above, but as shown in FIG. 5, it is located below the groove 84 and is slightly inclined downwardly to the left in the figure. The falling parts guide part 74 is fixed to the supply trough 1 by bolts via a pair of upper protrusions 88, and a passage 89 is formed between these upper protrusions 88 and in the supply side end wall of the supply trough 1. Trough 8 through opening 90
The parts from 6 are led into the supply trough 1.

In this embodiment, the first trough side supported by the leaf spring 18 is constituted by the supply trough 1, the leaf spring mounting block 22, the falling parts guide part 74, etc. as described above, and is supported by the leaf spring 10. The second trough side supported by the parts distribution section 2, the parts sorting section 3,
It is composed of the parts receiving part 4, the ejecting part 71, the falling parts receiving part 73, the leaf spring mounting block 14, etc., and as shown in FIG. The resonant frequency f ₁ determined by the spring constant of the spring 18 is approximately half of the resonant frequency f ₂ determined by the total mass on the second trough side and the spring constant of the leaf spring 10 supporting this, and These resonance frequencies f ₁ and f ₂ are set to be approximately equal to the drive frequency f ₁₀ (50 Hz in this embodiment) and f ₂₀ (100 Hz in this embodiment) of the electromagnets 24 and 15. For example, the resonant frequencies f ₁ and f ₂ are approximately 50.5Hz and approximately 101
Hz, the spring constants of the leaf springs 18 and 10 and the mass of each part on the first and second track sides are determined. That is, the first and second track sides are each configured to be driven at different frequencies in a substantially resonant state.

The vibrating component feeder according to the embodiment of the present invention is constructed as described above, and its operation will be explained below.

A large number of components (for example, chip capacitors) m to be arranged and supplied are placed in a supply trough 1 or a component distribution section 2.
and supplied onto the parts sorting section 3. Drive parts 7, 9
When a power supply 105 is applied through the controllers 104 and 103, the supply trough 1 moves as shown in FIG.
The components distributing section 2, component sorting section 3, component receiving section 4, etc. vibrate in the direction of arrow a. As a result, the parts m in the supply trough 1 rise on the transfer surface 28 to the left in FIG. 1 and reach the horizontal surface section 29. Here, it is guided to the opening 37 side by the guide portion 30a, and also guided by the stopper member 39 fixed to the corner of the component distribution portion 2, and guided to the starting end portion 38 of the distribution tracks 31 to 35. . Since the distribution tracks 31 to 35 extend radially from here toward the sorting tracks 40 to 44 of the parts sorting section 3, the large amount of parts m supplied to the starting end 38, which corresponds to the corner of the fan, is Here, it is distributed almost equally to each distribution track 31 to 35,
The parts m are transferred to the right in FIG. 1 on the respective distribution tracks 31 to 35 at substantially equal density relative to each other. Distribution track 31 as shown in FIG.
Since the transfer surfaces of parts 32 to 35 are inclined downwardly to the left in the transfer direction, the parts are transferred biased toward the side walls 32a to 35a of the tracks 32 to 35 or the protruding wall 36 side, and the parts are transferred to the side of the parts sorting section 3. 40～
44 to the supply end.

Also on each sorting track 40 to 44 of the parts sorting section 3, the component
-44 side wall parts 41a-44a or protruding wall 4
It is transferred to the 5th side. Until reaching the openings 46 to 50, a large number of parts m are transferred in multiple rows and overlapping on each track 40 to 44.
At this point, the side walls 41a of the tracks 41 to 44
44a or the rows that are in contact with the protruding wall 45, that is, only the parts m in the leftmost row in the transport direction are transported on the narrow transport surface (hereinafter referred to as the intermediate track section), and the parts m in the other rows are transported through the openings. 46-5
0 and falls into the component receiving section 4.

In this embodiment, the conveying state is defined as transporting the parts m in a single layer in a reclining position with the longitudinal direction of the parts facing the transport direction, but on the intermediate track, the longitudinal direction is perpendicular to the transport direction. There are parts m that are transferred in a posture facing toward (see FIG. 9B), and there are also parts m that are overlapped although in a single row. However, the overlapping parts m on the intermediate tracks of the shuffling tracks 42, 43, 44 are wiper 61 (10th
(see figure B), the transfer is obstructed and the opening 4
8, 49, and 50 and fall into the component receiving section 4.

Next, each part m reaches the narrow track portions 40b to 44b of the shuffling tracks 40 to 44, where the first
As shown in FIG. 0B, the component m in a posture with its longitudinal direction perpendicular to the transport direction falls into the wide openings 56 to 60 due to the action of gravity. Further, the parts m overlapping on the narrow width tracks 40b, 41b of the shuffling tracks 40, 41 are dropped into the wide width openings 56, 57 by the wiper 61.

As described above, the narrow track portions 40b to 44 are
The part m is sorted and transferred on the top b, but depending on the transfer speed of the part m and the pressing force between the parts m, the part m may be moved again by the time it reaches the edge 62a of the holding plate 62. It is possible that they overlap. However, even if the parts m overlap, they are guided by the edge 62a of the holding plate 62 and fall into the openings 46-50. Therefore, the parts m are reliably transferred in a single layer and in a predetermined posture below the holding plate 62, and eventually enter the grooves 40c to 44c, where they are transferred and discharged from the discharge ends of the sorting tracks 40 to 44. Discharge part 7
1 through grooves 77 to 81 to the supply component standby section 72.

On the other hand, the parts m that have fallen into the part receiving part 4 through the openings 46 to 50 are transferred toward the side wall part 66 along the inclined surface 64 under the action of gravity and the vibration force, and some parts m directly fall into the opening. 67, and a certain part m receives vibrational force along the side wall part 66 and moves to the 11th part m.
In figure A, it is transferred to the right and reaches the opening 67. From the entrance part 67 to the inclined surface 64 and the mounting member 63
The part m is guided through the opening 27 of the supply trough 1 to the supply end under the guidance of the slope. From now on, each part m will again be subjected to the same action as described above. The non-separated parts m are circulated in the order of supply trough 1 -> parts distribution part 2 -> openings 46 to 50 of parts sorting part 3 -> parts receiving part 4 -> supply trough 1.

On the other hand, the parts m that have been sorted and arrived at the supply parts standby section 72 come into contact with the stopper 82 and are temporarily stopped there, and are held in that position by the vacuum suction action from the holes 77b to 81b. However, it is soon absorbed from above by a vacuum suction device (not shown), and is transferred to the right side through the fallen part receiving section 73 in Fig. 4, and is supplied to the next process. If a component falls from the vacuum suction device due to some reason, it is received by the groove 84 of the trough 83 and guided to the fallen component guide section 74. Note that the component m that has fallen onto the stopper 82 or onto the left side wall of the trough 83 advances into the groove 84 of the trough 83 under the transfer force caused by the vibration. Falling parts guide section 7
4 the part m is again led into the supply trough 1.

As described above, in this embodiment, a large amount of parts m is almost equally distributed by the parts distributing section 2 to each of the sorting tracks 40 to 45 of the parts sorting section 3. Therefore, the components m are supplied from the discharge section 71 to the component waiting section 7 at a substantially uniform supply speed. Therefore, the amount of parts m remaining in the parts feeder can be extremely reduced at the time when parts m are no longer being discharged from the discharge end of each of the tracks 40 to 45 at a substantially uniform supply speed. In other words, each transfer truck 40 to 4
Part m is supplied from No. 4 at a desired supply speed. This is extremely effective when managing parts m in lots.

This embodiment operates as described above, but in use, first, the first trough side, which consists of the supply trough 1, etc., and the second trough side, which consists of the parts distribution section 2, etc.
The oscillation width on the trough side must be adjusted to obtain an optimum shuffling effect and as high a component feed rate as possible. For this purpose, the variable resistors 106 and 108 shown in FIGS. 12A and 12B are adjusted, and in this embodiment, the amplitude can be easily adjusted to the optimum amplitude. That is, the swing width on the first trough side can be changed by adjusting the variable resistor 107, but at this time, the swing width on the second trough side does not change at all due to this variation in swing width. Also variable resistor 108
The swing width on the second trough side can be changed by adjusting the swing width, but even at this time, the swing width on the first trough side does not change at all due to this fluctuation in swing width. In conventional vibrating parts feeders, when adjusting the amplitude of one side, the amplitude of the other side also fluctuates due to interference caused by the reaction force, making adjustment extremely difficult.However, in this example, the amplitudes of the other vibration amplitude are interfered with by the reaction force, making adjustment extremely difficult. Therefore, the swing width can be adjusted extremely easily. This is particularly effective when adjusting the swing width in order to obtain the optimum feeding effect while processing the parts feeding means or by adding some kind of attachment.

Furthermore, in the above embodiment, the second
Since the driving frequency on the trough side is doubled as compared to the driving frequency on the first trough side, it is easy to obtain an effective alignment effect. This is because the component transfer speed is generally proportional to swing width times driving frequency, but on the second trough side, the swing width can be reduced for a constant transfer speed.

Generally, in a resonant vibration system, the driving frequency is equal to or close to the resonance frequency of the vibration system, but if the driving force is changed at this frequency, the amplitude of the vibration system will vary greatly. However, if the driving force at a frequency far away from the resonant frequency of the vibration system is changed by the same amount, the fluctuation in amplitude is small.

That is, more or less reaction force is transmitted from the first trough or the second trough to the other trough via the leaf spring supporting the trough and the common base 5, but the frequency of this reaction force is higher than the frequency of the other trough. If the frequency is close to the resonant frequency of the trough vibration system, the amplitude of the trough will be greatly perturbed. However, if the frequency of this reaction force is far away from the resonant frequency of the vibration system, this amplitude disturbance will be much smaller.

As described above, in this embodiment, when the amplitude of one trough is adjusted, the amplitude of the other trough hardly changes, so it is possible to obtain the optimum amplitude of each trough very easily independently of each other. This effect can be achieved.

In addition, the parts are transported by the parts sorting means in the second trough.
While the trough is being transported, it is subjected to a directing action, and in general, the smaller the swing width, the higher the directing efficiency. This effect is particularly great when the components are small as in this embodiment.

Furthermore, as mentioned above, the part transfer speed is generally proportional to the amplitude x driving frequency, so the parts transfer speed in the second trough with a small amplitude and a large driving frequency and in the first trough with a large amplitude and a small driving frequency. can be made almost equal. This provides smooth parts circulation between the first and second troughs.

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

For example, in the above embodiment, the number of rows of distribution tracks and sorting tracks is five, but of course the number is not limited to this.

Furthermore, in the above embodiments, the feeding means in the parts feeding section is a narrow track section or a wiper plate, and almost rectangular electronic components are to be fed, but the present invention is not limited to these, and can be applied to conventional parts feeders. Various sorting means can be applied to the present invention depending on the parts to be sorted.

Furthermore, in the above embodiments, a vibrating parts feeder with multiple rows has been described, but a linear parts feeder with a simple structure consisting only of a supply trough as a first trough and a second trough having a single alignment track may also be used. Of course, the present invention is applicable.

Furthermore, in the above embodiment, the driving frequency _f10 on the first trough side including the supply trough was set to be half of the driving frequency _f20 on the second trough side including the parts sorting section, etc.
Depending on the case, the magnitude relationship of the driving frequencies may be reversed under resonance conditions. Also drive frequency f ₁₀
The ratio between f ₂₀ and f 20 is not limited to 2:1 or 1:2.

Further, in the above embodiment, the diode 106 was used to reduce the driving frequency to half, but a general frequency converter may be used to obtain the desired driving frequency.

As described above, in the vibrating parts feeder of the present invention, the first trough side and the second trough side are each vibrated at different drive frequencies in a resonant state, so it is easy to adjust the optimum amplitude of each. In addition, since the drive frequency can be selected separately depending on the purpose of use of each trough side, the optimal structural design (for example, minimizing the reaction force, increasing the upward slope angle of the transfer surface 28 of the supply trough 1) , the installation angle of leaf springs, the number of leaf springs, etc.).

[Brief explanation of drawings]

FIG. 1 is a plan view of a vibrating multi-row component feeder according to an embodiment of the present invention, FIG. 2 is a side view showing the same feeder together with a drive circuit, FIG. 3 is a front view of the same feeder, and FIG. Fig. 1 is a partial enlarged plan view of the ejecting section, falling parts receiving part, and falling parts guiding part, and Fig. 5 is a partially enlarged plan view of the
FIG. 6 is a sectional view of the supply trough in the -line direction in FIG. 1, FIG. 7 is an enlarged sectional view in the -line direction of the parts distribution section in FIG. - of the parts sorting section in Figure 1
Figure 9A is an enlarged cross-sectional view along the line A-A of the same parts sorting section, Figure 9B is a partially enlarged cross-sectional view of Figure 9A shown together with parts, and Figure 10A is the same parts sorting part. An enlarged cross-sectional view along line A-A of
Fig. 10B is a partial enlarged sectional view of Fig. 10A shown with parts, Fig. 11A is a plan view of the parts receiving part in the same feeding machine, and Fig. 11B is the XI in Fig. 11A.
12A and 12B are detailed circuit diagrams of the drive circuit in FIG. 1, and FIG. 13 is a graph for explaining the operation of this embodiment. In the figure, 1... Supply trough, 2... Parts distribution section, 3... Parts sorting section, 4... Parts receiving section,
7...First vibration drive section, 9...Second vibration drive section,
10, 18... leaf spring, 15, 24... electromagnet,
31-35...Distribution track, 40-44...Transfer track, 40b-44b...Small track section, 46-50...Stepped opening, 61...Wiper plate, 103, 104...Control circuit, 105... AC power supply, 106... Diode, 107, 108
...variable resistance.

Claims (1)

[Claims] 1. A base supported by an anti-vibration spring on the base, a first electromagnet drive section and a second electromagnet drive section provided on the base.
an electromagnetic drive section; the first elastic means extends linearly above the base and is connected to the base by a first elastic means so as to vibrate in response to the excitation force of the first electromagnet drive section to transfer the component in one direction; a first trough, extending linearly above the base, disposed in close proximity to the first trough, and comprising a parts handling means;
and a second trough coupled to vibrate in order to receive the excitation force of the second electromagnetic drive unit and transfer the parts in a direction opposite to the one direction, the parts sorting means of the second trough; The parts sent in the second
In a vibrating parts feeder in which parts are supplied to the outside from a trough and parts that are not sorted are returned to the first trough and guided again to the second trough, the spring constant of the first elastic means and the the first resonant frequency determined by the mass of the first trough to be significantly different from the second resonant frequency determined by the spring constant of the second elastic means and the mass of the second trough; The spring constants of the first elastic means and the second elastic means, the masses of the first trough and the second trough are set, and the first electromagnet driving section has a first driving frequency close to the first resonance frequency, A vibrating component supplying machine, wherein the second electromagnet drive section is driven and controlled independently from each other at a second drive frequency close to the second resonance frequency. 2. The first resonant frequency is approximately half the second resonant frequency, and the first drive frequency of the first electromagnet drive section is half the second drive frequency of the second electromagnet drive section. The vibrating parts feeder according to the above item 1.