TWI531515B - Vibrating parts feeder - Google Patents

Description

Vibrating parts conveying device

The present invention relates to a vibrating component conveying device that transports a component by vibrating a component conveying member by driving an excitation mechanism.

In the vibration type component conveying device, a composite vibration type device that can adjust the horizontal vibration and the vertical vibration of the component conveying member is provided for the purpose of providing the component conveying member with the vibration of the component. (For example, refer to the patent document. 1).

As the above-described composite vibration type component conveying device, for example, the straight feeding machine shown in Figs. 1 and 2 of the embodiment of the present invention is provided around the vibrating body 2 above the conveyor groove 1 as the component transporting member. The intermediate vibrating body 4 having a rectangular frame shape is disposed; the intermediate vibrating body 4 and the base 3 are connected by a first leaf spring (elastic vibration member for horizontal vibration) 5 facing in the vertical direction; and the second leaf spring facing the horizontal direction (vertical vibration) The upper vibrating body 2 and the intermediate vibrating body 4 are connected by an elastic member 6; and the first excitation mechanism 7 for generating vibration in the horizontal direction and the second excitation mechanism 8 for generating vibration in the vertical direction are provided. .

Further, each of the excitation mechanisms 7 and 8 is composed of alternating electromagnetic stones 9, 11 and movable iron cores 10 and 12, and the voltages of the electromagnets 9, 11 applied to the respective excitation mechanisms 7 and 8 are controlled, respectively. The vibration in the horizontal direction and the vibration in the vertical direction of the conveyor groove 1 are separately adjusted.

However, in such a composite vibrating straight-feed feeder, in general, when it is desired to increase the speed of the conveyed parts, the amplitude of the vibration in the horizontal direction is efficiently increased with a small amount of electric power, and the horizontal direction of the conveyor groove is inherent. The excitation mechanism is driven by the frequency near the number of vibrations. In this case, the vibration amplitude in the horizontal direction and the vertical direction is usually about several hundred μm in the horizontal direction, and the vibration amplitude in the vertical direction is about several tens of μm or less, that is, the vibration amplitude in the vertical direction is horizontal. The vibration amplitude is adjusted to about 1/10 or less.

At this time, as shown in FIG. 14, in the slot machine in the horizontal direction of conveyance of the vibrating conveyor trough when the first excitation means and the spectral waveform of vibration in the vertical direction, the natural frequency of the groove in the horizontal direction of the machine conveyor F _h V _h difference in the vibration amplitude of the vibration amplitude in the vertical direction of the horizontal direction of the V _v, at're just about 2 dB to 1 of the case, even if the natural frequency of the groove in the horizontal direction of the machine near the delivery i.e. frequencies F _h to When the first excitation mechanism is driven, only the vibration in the horizontal direction is generated, and there is a fear that the vertical direction of the vibration is generated in the conveyor groove. When the vibration amplitude in the vertical direction is several tens of μm or more, the vibration in the vertical direction generated by the second excitation mechanism overlaps, and the adjustment of the vibration in the vertical direction of the conveyor groove becomes difficult, and the conveyor cannot be provided. The slot is best suited for moving the vibration of the part.

With regard to this problem, the composite vibrating disk feeder (for example, refer to Patent Documents 2 and 3) has the same problem.

For example, as shown in Fig. 15, the disc-shaped feeder of Patent Document 2 has a cross-shaped intermediate vibration between the upper vibrating body 52 of the disk 51 and the base 53 provided on the ground. The intermediate vibrating body 54 and the base 53 are connected to the first leaf spring (swinging vibration leaf spring) 55 in the vertical direction, and the upper portion is connected to the second leaf spring (vertical vibration leaf spring) 56 in the horizontal direction. The vibrating body 52 and the intermediate vibrating body 54; between the intermediate vibrating body 54 and the base 53 are provided with a first excitation mechanism (not shown) for generating vibration in the horizontal rotation direction; and the upper vibrating body 52 and the base 53 A second excitation mechanism (not shown) that generates vibration in the vertical direction is provided between them.

Further, each of the excitation mechanisms is configured by an alternating electromagnet and an intermediate vibrating body 54 which are respectively provided on the base 53, and a movable iron core attached to the upper vibrating body 52, and respectively control the electromagnets applied to the respective vibrating mechanisms. The voltage can adjust the vibration of the horizontal rotation direction of the disk 51 and the vibration of the vertical direction, respectively.

However, in the composite so shaped vibrating plate feeder, vibrating when the difference _h in the vertical direction V of the rotation direction of the vibration amplitude level of the amplitude V _{v h} of the natural frequency of the rotation direction of the horizontal plate F., Only 1 to about 2 dB, above the rectilinear feeder case of the same, at a frequency close to the natural frequency of vibration of the number of the rotation direction of the disc drive level F _h to a first excitation means of the disk having a large amplitude is generated In the vertical direction, the vibration in the vertical direction overlaps with the vibration in the vertical direction generated by the second excitation mechanism, and it is difficult to adjust the vibration in the vertical direction of the disk, and it is impossible to impart the most suitable vibration to the transporting member. There are many situations in the market.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] JP-A-55-84707

[Patent Document 2] Japanese Patent Laid-Open No. Hei 10-203623

[Patent Document 3] JP-A-H11-116027

An object of the present invention is to suppress the occurrence of vibration in a vertical direction caused by vibration in a horizontal direction in a composite vibration type component conveying device.

In order to solve the above problems, the present invention includes: a component transporting member in which a component transport path is formed; a vibrating body on an upper portion of the component transporting member; a base provided on the ground; and a middle portion between the upper vibrating body and the base a vibrating body; a first elastic member that connects the intermediate vibrating body and the base; and a second elastic member that connects the upper vibrating body and the intermediate vibrating body; and one of the first elastic member and the second elastic member is horizontal The vibration elastic member and the other one are the vertical vibration elastic members, and the horizontal vibration elastic member and the first excitation mechanism are given to the component conveying member in the horizontal direction, and the vertical vibration elastic member and the second excitation mechanism are used. In the vibrating component conveying device that imparts vibration to the component conveying member in the vertical direction, when the first excitation mechanism vibrates the component conveying member in the horizontal direction, the vertical direction of the component conveying member is generated. The amplitude of the vibration is smaller than the amplitude of the vibration in the horizontal direction by more than 6 dB. By causing a large difference between the vibration amplitude in the horizontal direction and the vibration amplitude in the vertical direction among the natural vibration numbers in the horizontal direction of the component conveying member, the frequency is driven at a frequency near the natural vibration number in the horizontal direction of the component conveying member. In each of the excitation mechanisms, the amplitude of the vibration in the vertical direction due to the vibration in the horizontal direction can be reduced.

In this case, it is preferable that the first excitation mechanism vibrates the component transport member such that the vibration number is the number of vibrations in the vertical direction generated when the number of natural vibrations in the vertical direction of the component transport member is greater than the number of vibrations as the component transport member. The amplitude of the vibration in the horizontal direction generated when the number of natural vibrations in the horizontal direction is smaller is 3 dB or less. In this case, since the peak of the vibration amplitude in the horizontal direction and the vertical direction differs by more than 3 dB, the above-described amplitude difference of 6 dB or more can be easily formed.

In addition, when the horizontal vibration elastic member is fixed at two fixed positions on the same horizontal line orthogonal to the component conveying direction, the horizontal vibration deformation of the horizontal vibration elastic member is not associated with the vertical displacement. The vibration in the vertical direction caused by the vibration in the horizontal direction can be suppressed.

On the other hand, the vertical vibration elastic member may be fixed at two fixed positions on the same horizontal line orthogonal to the component conveying direction, or may be fixed at two fixed positions on the same horizontal line parallel to the component conveying direction.

Moreover, as an example of the present invention, the component transfer member may be a disk in which a spiral conveyance path is formed, and the horizontal vibration elastic member may be applied to the vibration in the horizontal rotation direction together with the first excitation mechanism. Disk vibrating parts conveying device (disc feeder).

When the present invention is applied to a vibrating disk feeder as described above, the elastic member for the rotary vibration is fixed at two fixed positions on the same horizontal line orthogonal to the center line in the vertical direction of the disk. In the horizontal direction of rotation of the elastic member for the rotary vibration, the deformation in the horizontal direction is irrelevant, and the vibration in the vertical direction due to the vibration in the horizontal rotation direction can be suppressed. On the other hand, the elastic member for vertical vibration can be fixed to two fixed positions on the same horizontal line extending along the outer peripheral portion of the upper vibrating body or the intermediate vibrating body. In addition, a leaf spring having a front and back surface in the horizontal direction can be used as the above-described elastic member for the vibration and a leaf spring having the front and back faces facing the vertical direction as the elastic member for vertical vibration.

Further, the electromagnet and the movable iron core constitute the vibrating mechanism, and a voltage generating circuit for applying one of the electromagnets to the one of the electromagnetic wave is provided with a reference waveform generating means for generating a reference waveform for applying a voltage, and a waveform for adjusting the amplitude of the reference waveform. An amplitude adjustment mechanism; a voltage difference setting means for generating a waveform having a specific phase difference with respect to the reference waveform, and a waveform amplitude for adjusting a waveform amplitude generated by the phase difference adjustment mechanism in an applied voltage setting circuit for the other electromagnetic wave The adjustment mechanism; if the waveform, period, phase difference, and amplitude of the voltage applied to each of the electromagnets are freely controllable, the vibration in the horizontal direction and the vibration in the vertical direction can be easily brought close to the desired vibration.

Further, a voltage signal generating circuit that converts each of the waveforms obtained by adjusting the amplitude by the waveform amplitude adjusting mechanism into a PWM (Pulse Width Modulation pulse width modulation) signal is provided in the voltage applying circuit to the electromagnet of each of the excitation mechanisms. The excitation mechanism can be driven by PWM.

In the vibrating component transporting apparatus of the present invention, when the first exciting mechanism vibrates the component transporting member with the natural vibration number in the horizontal direction, the amplitude of the vibration in the horizontal direction generated by the component transporting member is reduced. The amplitude of the vibration in the vertical direction is smaller than 6 dB, so that the vibration in the vertical direction due to the vibration in the horizontal direction can be effectively suppressed. Therefore, when the vibration in the horizontal direction and the vertical direction are respectively adjusted, the vibration in the horizontal direction can be adjusted in such a manner that the vibration in the vertical direction is hardly affected, and the desired vibration suitable for the component transfer can be easily realized.

Hereinafter, embodiments of the present invention will be described based on Figs. 1 to 13 . Fig. 1 to Fig. 7 show a first embodiment. As shown in FIG. 1 and FIG. 2, the component conveying device is such that a conveyor groove (part conveying member) 1 in which a linear conveying path 1a is formed is attached to the upper surface of the upper vibrating body 2, and around the upper vibrating body 2 The intermediate vibrating body 4 having a rectangular frame shape is disposed; the intermediate vibrating body 4 and the base 3 are connected by a first leaf spring (elastic vibration member for horizontal vibration) 5 facing in the vertical direction; and the second leaf spring facing the horizontal direction (for vertical vibration) The elastic member 6 connects the upper vibrating body 2 and the intermediate vibrating body 4; between the intermediate vibrating body 4 and the base 3, a first excitation mechanism 7 that generates horizontal vibration is provided; and the upper vibrating body 2 and the base 3 A vibrating straight feeder that generates the second excitation mechanism 8 that vibrates in the vertical direction is provided. The base 3 is supported by an anti-vibration member (not shown) such as an anti-vibration rubber fixed to the floor.

The first excitation mechanism 7 is composed of an alternating electromagnet 9 provided on the base 3 and a movable core 10 attached to the intermediate vibrating body 4 so as to face the electromagnetic stone 9 at a predetermined distance. Further, although the movable iron core 10 is attached to the intermediate vibrating body 4 in this example, it may be attached to the upper vibrating body 2. On the other hand, the second excitation mechanism 8 is composed of the alternating electromagnet 11 provided on the base 3 and the movable core 12 attached to the upper vibrating body 2 so as to face the electromagnetic field 11 at a predetermined distance. Composition.

When the electromagnet 9 of the first excitation mechanism 7 is energized, the intermittent electromagnetic attraction force acts between the electromagnet 9 and the movable core 10, and the electromagnetic attraction force and the restoring force of the first leaf spring 5 are The intermediate vibrating body 4 generates vibration in the horizontal direction, and the vibration is transmitted to the upper vibrating body 2 and the conveyor groove 1 via the second leaf spring 6. When the electromagnet 11 of the second excitation mechanism 8 is energized, the intermittent electromagnetic attraction force acts between the electromagnet 11 and the movable core 12, and the electromagnetic attraction force and the restoring force of the second leaf spring 6 are The upper vibrating body 2 and the conveyor groove 1 generate vibration in the vertical direction. Further, the components supplied to the conveyor tank 1 are conveyed along the linear transport path 1a by the vibration in the horizontal direction and the vibration in the vertical direction.

Therefore, by individually setting the voltages applied to the electromagnets 9 and 11 of the respective excitation mechanisms 7 and 8, the vibration in the horizontal direction and the vibration in the vertical direction of the conveyor groove 1 can be adjusted.

Fig. 3 shows a circuit for setting the applied voltages of the respective excitation mechanisms 7, 8 to the electromagnets 9, 11. A reference waveform generating means 13 for generating a reference waveform of an applied voltage is provided in the circuit of the first excitation mechanism 7. The reference waveform generating unit 13 generates a reference waveform that matches the waveform type (for example, a sine wave) and its waveform period (frequency). On the other hand, the circuit of the second excitation mechanism 8 is provided with a phase difference adjustment mechanism 14 that generates a waveform having a specific phase difference with respect to the reference waveform generated by the reference waveform generation unit 13.

Further, in the circuits of the excitation mechanisms 7 and 8, the waveform generated by the reference waveform generation unit 13 or the phase difference adjustment unit 14 is adjusted to a specific amplitude by the waveform amplitude adjustment unit 15 to the PWM signal generation unit 16 . After being converted into a PWM signal, the voltage is boosted by the voltage amplification means 17 and applied to the respective electromagnets 9, 11. Thereby, the waveform, the period, the phase difference, and the amplitude of the applied voltage applied to the respective electromagnets 9 and 11 can be freely controlled, and the vibration in the horizontal direction and the vibration in the vertical direction can be individually adjusted. Further, the PWM signal generating mechanism 16 is not required in the case where the respective excitation mechanisms are not driven by the PWM method.

Here, in the conveyor groove 1 as shown in FIG. 4, in the vibration spectrum waveform of the horizontal direction and the vertical direction of the conveyor groove 1 when the first excitation mechanism 7 vibrates the conveyor groove 1, the number of vibrations is made as the amplitude V _v vibrations in the vertical direction of the natural frequency in the vertical direction of F when _v arising, smaller than the amplitude V _h vibrations level to the vibration frequency F when _h arising as the natural frequency in the horizontal direction of the direction of When it is adjusted to be vibrated by the natural vibration number F _h in the horizontal direction, the vibration amplitude V _{v in the} vertical direction is smaller than the vibration amplitude V _{h in the} horizontal direction by 6 dB or more. By such a way that the natural frequency of the conveyor trough of the horizontal direction of the vibration amplitude F V _v V _h in the vertical direction of the vibration amplitude _h in the horizontal direction of a greater difference in the conveyor trough of the horizontal direction of the inherent number of vibration frequency F _h vicinity of each of the drive means when the excitation 7-8, can reduce the amplitude of vibrations in the vertical direction of the horizontal direction due to the vibrations.

As described above, the vibrating component conveying device can effectively suppress the occurrence of vibration in the vertical direction due to the vibration in the horizontal direction. Therefore, when the vibration in the horizontal direction and the vertical direction are respectively adjusted, the vibration in the vertical direction can be hardly affected. The vibration in the horizontal direction is adjusted, and the desired vibration suitable for the conveyance of the parts can be easily imparted to the conveyor tank 1.

5 and 6 show a modification of the arrangement of the first leaf spring 5. In the modified example, the columnar leaf spring mounting portion 3a is erected on both ends of the base 3, and is fixed at two fixed positions on the same horizontal line orthogonal to the component conveying direction (the horizontal direction in the drawing). The leaf spring 5 is fixed to the intermediate vibration body 4 and the leaf spring mounting portion 3a of the base 3. In this way, the deformation of the first leaf spring 5 in the horizontal direction is not related to the displacement in the vertical direction, and the vibration in the vertical direction due to the vibration in the horizontal direction can be more effectively suppressed.

Further, Fig. 7 shows a fixed position at two positions on the same horizontal line orthogonal to the component conveying direction based on the above-described examples of Figs. 5 and 6, and the second leaf spring 6 is fixed to the upper vibrating body 2 and the middle. An example of the vibrating body 4.

8 to 12 show a second embodiment. In the component conveying device, a disk (part conveying member) 21 having a spiral conveying path (not shown) formed on its inner surface is attached to the upper surface of the disk-shaped upper vibrating body 22, and the upper vibrating body 22 is disposed on the ground. A cylindrical intermediate vibrating body 24 is provided between the bases 23, and the intermediate vibrating body 24 and the base 23 are coupled to the plate springs 25 as the first elastic members (horizontal vibration elastic members) as the second elastic members ( The leaf spring 26 of the elastic member for vertical vibration connects the upper vibrating body 22 and the intermediate vibrating body 24; the first vibrating mechanism 27 that generates vibration in the horizontal rotation direction is provided between the intermediate vibrating body 24 and the base 23; A vibrating disk feeder that generates a second excitation mechanism 28 that vibrates in the vertical direction is provided between the body 22 and the base 23.

The base 23 fixes the block-shaped leaf spring mounting member 30 to the upper surface of the rectangular bottom plate 29, and fixes the disk-shaped electromagnet setting plate 31 to the upper surface of the leaf spring mounting member 30, so that the bottom plate 29 is An anti-vibration member (not shown) such as an anti-vibration rubber fixed to the ground is supported, and the leaf spring mounting member 30 and the electromagnet setting plate 31 are inserted into the lower portion of the intermediate vibrating body 24.

The intermediate vibrating body 24 is provided in the circumferential direction at four equal intervals from the first leaf spring attachment portion 24a fitted from the lower end and the second leaf spring attachment portion 24b protruding from the upper end. Further, the leaf spring mounting member 30 of the base 23 is provided with a leaf spring mounting portion 30a at a position corresponding to the first leaf spring mounting portion 24a of the intermediate vibrating body 24, and the upper vibrating body 22 is inserted into the intermediate vibrating body. A leaf spring mounting portion 22a is provided on one side surface of the notch of the second leaf spring mounting portion 24b of 24.

The first leaf spring 25 is configured such that the front and back surfaces are oriented in the horizontal rotation direction, and the both end fixing positions are located on the same horizontal line orthogonal to the center line O of the disk 21 in the vertical direction, and the one end portion is fixed to the intermediate vibrating body 24, respectively. The first leaf spring mounting portion 24a is attached to the leaf spring mounting portion 30a of the leaf spring mounting member 30 of the base 23, and is a leaf spring for supporting the intermediate vibration body 24 in a horizontally rotatable direction. Elastic member for rotary vibration).

On the other hand, the second leaf spring 26 has the front and back faces facing the vertical direction, and the fixed positions of the both ends are located on the same horizontal line extending along the outer peripheral portion of the upper vibrating body 22, and the one end portion is fixed to the upper vibration. The plate spring attachment portion 22a of the body 22 is fixed to the second leaf spring attachment portion 24b of the intermediate vibrating body 24, and is a vertical vibration leaf spring that oscillates the upper vibrating body 22 in a vertical direction.

Further, the first excitation mechanism 27 includes an AC electromagnet 32 provided on the electromagnet setting plate 31 of the base 23, and a movable iron core 33 which is attached to the electromagnet 32 at a predetermined distance from each other. The inner peripheral surface of the intermediate vibrating body 24. Further, the movable iron core 33 is attached to the intermediate vibrating body 24 in this example, but may be attached to the upper vibrating body 22. On the other hand, the second excitation mechanism 28 includes an AC electromagnet 34 provided on the electromagnet setting plate 31 of the base 23, and a movable iron core 35 which is mounted at a predetermined distance from the electromagnet 34. Below the upper vibrating body 22.

When the electromagnet 32 of the first excitation mechanism 27 is energized, the intermittent electromagnetic attraction force acts between the electromagnet 32 and the movable iron core 33, and the restoring force of the electromagnetic attraction force and the rotary vibration leaf spring 25 is The intermediate vibrating body 24 generates vibration in the horizontal rotation direction, and the vibration is transmitted to the upper vibrating body 22 and the disk 21 via the vertical vibration plate spring 26. When the electromagnet 34 of the second excitation mechanism 28 is energized, the intermittent electromagnetic attraction force acts between the electromagnet 34 and the movable iron core 35, and the restoring force of the electromagnetic attraction force and the vertical vibration leaf spring 26 is utilized. The upper vibrating body 22 and the disk 21 generate vibration in the vertical direction. Then, the components supplied to the disk 21 are conveyed along the spiral conveying path by the vibration in the horizontal rotation direction and the vibration in the vertical direction.

Therefore, by individually setting the voltages applied to the electromagnets 32 and 34 of the respective excitation mechanisms 27 and 28, the vibration in the horizontal rotation direction of the disk 21 and the vibration in the vertical direction can be individually adjusted. Further, the same as those shown in FIG. 3 is used as a circuit for setting a voltage applied to each of the electromagnets 32 and 34.

At this time, the disk 21 is the same as the case of the conveyor groove 1 of the first embodiment (see FIG. 4), and the horizontal rotation direction and the vertical direction of the disk 21 when the disk 21 is vibrated by the first excitation mechanism 27 spectrum waveform, so that the number of vibration amplitude of the vertical direction V _v F is generated when the natural frequency of vibration of the vertical direction of the _V ', the ratio of the vibration frequency as a horizontal natural frequency of rotation of the horizontal direction when the F arising _h The amplitude V _h of the vibration in the direction of rotation is also less than 3 dB. As a result, when the vibration is adjusted to the natural vibration number F _h in the horizontal rotation direction, the vibration amplitude V _{v in the} vertical direction is smaller than the vibration amplitude V _{h in the} horizontal rotation direction. More than 6 dB. By such rotation causes the horizontal direction of the disc 21 have a greater difference in natural frequency F V _v V _h vibrational amplitude perpendicular to a direction of the rotation direction of the vibration amplitude of the level _h, the natural vibration of the disc to the direction of rotation 21 of the horizontal When the excitation mechanisms 27 and 28 are driven at a frequency near the number F _h , the amplitude of the vibration in the vertical direction due to the vibration in the horizontal rotation direction can be reduced.

Alternatively, an adjustment method as described below may be employed as an application example of the above-described vibration characteristic adjustment method of the disk 21.

That is, in the vibration spectrum waveform of the horizontal rotation direction and the vertical direction of the disk 21 when the disk 21 is excited in the horizontal rotation direction, as shown in Fig. 13 (a), the natural vibration number F _{h of the} disk 21 in the horizontal rotation direction is In the case where the natural vibration number F _v in the vertical direction differs by only 2 to 3 Hz, the difference between the vibration amplitude V _{h in} the horizontal rotation direction of the frequency F _h and the vibration amplitude V _{v in} the vertical direction is not large, even if the disk 21 is natural frequency of the horizontal direction, i.e. rotation frequency F _h to drive the vicinity of the first excitation means 27, is intended only to horizontal vibration of the direction of rotation, the disc 21 has probably produce a vertical direction of vibration of large amplitude.

Thus, the natural vibration FIG. 13 (b) as shown, as long as the natural frequency F _v of the vertical direction of the disc 21 is also adjusted to F _h or more than the natural frequency of the rotation direction of the large horizontal 5 Hz, the horizontal direction of rotation V _v V _h vibrational amplitude perpendicular to a direction of vibration amplitude and an F-number in the horizontal rotational direction _h of the difference becomes greater, the same method of adjusting the above case, even if the natural frequency of the horizontal plate 21 of the rotation direction F _When the excitation mechanisms 27 and 28 are driven at a frequency near _h , the amplitude of the vibration in the vertical direction due to the vibration in the horizontal rotation direction can be reduced.

At this time, the natural vibration number F _{v of the} disk 21 in the vertical direction may be adjusted to be smaller than the natural vibration number F _{h in the} horizontal rotation direction by 5 Hz or more, but it is preferable to use the horizontal rotation direction as in the above-described application example. The natural vibration number F _{h is} large. When the natural vibration number F _v in the vertical direction is increased, since the rigidity of the disk 21 in the vertical direction can be increased, it is easy to reduce the amplitude of the vibration in the vertical direction due to the vibration in the horizontal rotation direction. Further, when the natural vibration number F _v in the vertical direction is adjusted, the temperature is adjusted to be smaller than the natural vibration number F _{h in the} horizontal rotation direction. However, since there is no limit, the adjustment is easy.

Further, it is preferable that the natural vibration number F _{h in} the horizontal rotation direction of the disk 21 and the natural vibration number F _{v in the} vertical direction are adjusted so that the values of integer multiples of 5 or less of each of the two become a mutual relationship. Since the integral multiple of the natural vibration number is the natural vibration number having the vibration mode different from the natural vibration number, the integer rotation times of the natural rotation numbers F _h and F _v of the horizontal rotation direction of the disk 21 and the vertical direction are the same value. At or near the value, the amplitude of the vibration in the vertical direction due to the vibration in the horizontal rotation direction becomes large. In this case, the value of the integral multiple is set to 5 or less. Therefore, if the value is not limited, setting of the natural vibration numbers F _h and F _v becomes difficult, and if the natural vibration numbers F _h and F _{v are obtained,} When it is five times larger, the vibration amplitude becomes smaller in this vibration mode, and the influence on the disk 21 is also reduced.

Further, although the vibration amplitude of the disk 21 due to the vibration in the horizontal rotation direction is as small as possible, if the natural vibration number F _{v of the} disk 21 in the vertical direction is excessively increased, the vertical direction may be made. The rigidity becomes high, and there is a possibility that vibration in the vertical direction cannot be generated by the second excitation mechanism 28. Since the vibration amplitude in the vertical direction is tens of μm, the natural vibration number F _v in the vertical direction is such that the amplitude of the vibration in the vertical direction due to the vibration in the horizontal rotation direction is several μm to several tens μm. Just adjust it.

In the second embodiment, the slewing vibration leaf spring 25 is fixed at two fixed positions on the same horizontal line orthogonal to the center line O of the disk 21 in the vertical direction. The deformation in the horizontal rotation direction is not related to the displacement in the vertical direction, and the effect of suppressing the vibration in the vertical direction due to the vibration in the horizontal rotation direction is more suppressed.

As described above, the vibrating disk feeder of the second embodiment is similar to the vibrating straight feeder of the first embodiment, and is capable of effectively suppressing vibration in the vertical direction due to vibration in the horizontal rotation direction. When the vibration in the horizontal rotation direction and the vertical direction is adjusted, the vibration in the horizontal rotation direction can be adjusted without affecting the vibration in the vertical direction, and the desired vibration of the disk 21 suitable for the parts can be easily imparted.

In the above-described embodiments, the first plate spring that connects the intermediate vibrating body and the base is used as the horizontal vibration elastic member, and the second plate spring that connects the upper vibrating body and the intermediate vibrating body is used as the vertical vibration elastic member. On the other hand, the first leaf spring may be used as the elastic member for vertical vibration, and the second leaf spring may be configured as an elastic member for horizontal vibration. Further, although one leaf spring is disposed in each place, two or more sheets may be used in combination. Further, although the leaf spring is divided into four places for horizontal vibration and vertical vibration, it may be configured in two or more places.

Further, in each of the embodiments, the leaf spring is used for the horizontal vibration elastic member and the vertical vibration elastic member, but of course, an elastic member other than the leaf spring may be used. Further, although each of the excitation mechanisms includes an electromagnet and a movable iron core, the present invention is not limited thereto, and an actuator that generates the same exciting force may be used.

1‧‧‧Conveyor trough (part transporting member)

1a‧‧‧Linear transport road

2‧‧‧Upper vibrating body

3‧‧‧Abutment

3a‧‧‧Board spring installation

4‧‧‧Intermediate vibrating body

5‧‧‧1st leaf spring (elastic member for horizontal vibration)

6‧‧‧2nd leaf spring (elastic member for vertical vibration)

7‧‧‧1st vibration mechanism

8‧‧‧2nd vibration mechanism

9‧‧‧Electrical Stone

10‧‧‧ movable iron core

11‧‧‧Electrical Stone

12‧‧‧ movable iron core

13‧‧‧Reference waveform generating mechanism

14‧‧‧ phase difference adjustment mechanism

15‧‧‧ Waveform amplitude adjustment mechanism

16‧‧‧PWM signal generating mechanism

17‧‧‧Voltage amplification mechanism

21‧‧‧ disc shape (part transfer member)

22‧‧‧Upper vibrating body

23‧‧‧Abutment

24‧‧‧Intermediate vibrating body

24a‧‧‧1st leaf spring installation

24b‧‧‧2nd leaf spring installation

25‧‧‧1st leaf spring (elastic member for rotary vibration)

26‧‧‧Second leaf spring (elastic member for vertical vibration)

27‧‧‧1st vibration mechanism

28‧‧‧2nd vibration mechanism

29‧‧‧floor

30‧‧‧Shelf spring mounting member

30a‧‧‧Board spring installation

31‧‧‧Electrical stone setting board

32‧‧‧Electrical Stone

33‧‧‧ movable iron core

34‧‧‧Electrical Stone

35‧‧‧ movable core

51‧‧‧

52‧‧‧Upper vibrating body

53‧‧‧Base

54‧‧‧Intermediate vibrating body

55‧‧‧1st leaf spring

56‧‧‧2nd leaf spring

F _h ‧‧‧The number of natural vibrations in the horizontal direction

F _v ‧‧‧The number of natural vibrations in the vertical direction

V _h ‧‧‧Horizontal vibration amplitude

V _v ‧‧‧vertical vibration amplitude

V _v '‧‧‧Vertical vibration amplitude

Fig. 1 is a front sectional view showing a component conveying device (straight feed feeder) according to the first embodiment.

Figure 2 is a top plan view of the conveyor slot of Figure 1.

Fig. 3 is a schematic view showing an applied voltage setting circuit of each excitation mechanism of the component conveying device of Fig. 1.

Fig. 4 is a graph showing the vibration spectrum waveform of the component transporting apparatus of Fig. 1.

Fig. 5 is a front sectional view showing a modification of the arrangement of the leaf spring of Fig. 1.

Figure 6 is a top plan view showing the conveyor slot of Figure 5 removed.

Figure 7 is a top plan view of the conveyor slot with other variations of the arrangement of the leaf spring of Figure 1 removed.

Fig. 8 is a front elevational view showing the component conveying device (disc feeder) of the second embodiment.

Figure 9 is a top plan view showing the disk shape of Figure 8 removed.

Figure 10 is a longitudinal sectional view of Figure 8.

Figure 11 is a cross-sectional view taken along line XI-XI of Figure 10.

Figure 12 is a cross-sectional view taken along line XII-XII of Figure 10.

Figs. 13(a) and 13(b) are diagrams for explaining an application example of a method of adjusting the vibration characteristics of the disk shape of the component conveying device of Fig. 10.

Figure 14 is a graph showing the vibration spectrum waveform of the previous part transport device.

Figure 15 is a partially broken perspective view showing one of the prior parts transporting devices (disc feeders).

F _h. . . Horizontal natural vibration number

F _v . . . Vertical natural vibration number

V _h . . . Vibration amplitude in the horizontal direction

V _v . . . Vertical vibration amplitude

V _v '. . . Vertical vibration amplitude

Claims (6)

A vibrating component conveying device comprising: a component conveying member on which a component conveying path is formed; a vibrating body on an upper portion of the component conveying member; a base provided on the ground; and a middle portion between the upper vibrating body and the base a vibrating body; a first elastic member that connects the intermediate vibrating body and the base; and a second elastic member that connects the upper vibrating body and the intermediate vibrating body; and one of the first elastic member and the second elastic member is horizontal The vibration elastic member and the other is the vertical vibration elastic member, and the horizontal vibration elastic member and the first excitation mechanism impart vibration to the component conveying member in the horizontal direction, and the vertical vibration elastic member and the second excitation mechanism are used. The vibration of the component conveying member in the vertical direction is given, and the amplitude ratio of the vibration in the vertical direction generated by the component conveying member when the component transmitting member is vibrated by the first excitation mechanism in the horizontal direction The amplitude of the vibration in the horizontal direction is still less than 6 dB; the elastic member for horizontal vibration is fixed to zero In the state where the two transporting directions are orthogonal to each other on the same horizontal line, the two positions of the two horizontal vibration elastic members are arranged in two places at the same position in the component transport direction. The positional relationship of the fixed position is arranged in the same manner as the vertical plane passing through the center in the width direction of the apparatus. The vibration-type component conveying apparatus according to claim 1, wherein the first excitation mechanism vibrates the component conveying member, and the vibration amount is used as the vertical vibration generated when the number of natural vibrations in the vertical direction of the component conveying member is the same. The amplitude ratio is smaller than the amplitude of the vibration in the horizontal direction generated when the number of vibrations is the number of natural vibrations in the horizontal direction of the component conveying member is 3 dB or more. The vibrating component conveying device according to claim 1 or 2, wherein the vertical vibration elastic member is fixed at two fixed positions on the same horizontal line orthogonal to the component conveying direction. The vibrating component conveying device according to claim 1 or 2, wherein the vertical vibration elastic member is fixed at two fixed positions on the same horizontal line parallel to the component conveying direction. The vibrating component transporting apparatus according to claim 1 or 2, wherein each of the vibrating mechanisms is configured by an electromagnet and a movable iron core, and a reference waveform for generating an applied voltage is provided in an applied voltage setting circuit of one of the electromagnets. a waveform generating means and a waveform amplitude adjusting means for adjusting an amplitude of the reference waveform; and a voltage difference setting means for generating a waveform having a specific phase difference with respect to the reference waveform in the applied voltage setting circuit to the other electromagnetic wave, And a waveform amplitude adjustment mechanism that adjusts the amplitude of the waveform generated by the phase difference adjustment mechanism. The vibrating component transporting apparatus according to claim 5, wherein the voltage applying circuit to the electromagnet of each of the vibrating mechanisms is provided with a PWM signal for converting a waveform obtained by adjusting the amplitude by the waveform amplitude adjusting mechanism to a PWM signal. Generate institutions.