CN1134907A - Vibration device - Google Patents
Vibration device Download PDFInfo
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- CN1134907A CN1134907A CN96102970A CN96102970A CN1134907A CN 1134907 A CN1134907 A CN 1134907A CN 96102970 A CN96102970 A CN 96102970A CN 96102970 A CN96102970 A CN 96102970A CN 1134907 A CN1134907 A CN 1134907A
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- vibratory driver
- oscillatory system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G27/00—Jigging conveyors
- B65G27/10—Applications of devices for generating or transmitting jigging movements
- B65G27/16—Applications of devices for generating or transmitting jigging movements of vibrators, i.e. devices for producing movements of high frequency and small amplitude
- B65G27/24—Electromagnetic devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G27/00—Jigging conveyors
- B65G27/10—Applications of devices for generating or transmitting jigging movements
- B65G27/32—Applications of devices for generating or transmitting jigging movements with means for controlling direction, frequency or amplitude of vibration or shaking movement
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D19/00—Control of mechanical oscillations, e.g. of amplitude, of frequency, of phase
- G05D19/02—Control of mechanical oscillations, e.g. of amplitude, of frequency, of phase characterised by the use of electric means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Electromagnetism (AREA)
- Jigging Conveyors (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Feeding Of Articles To Conveyors (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention provides a vibrating apparatus to quickly stop vibration of a vibrating machine when an auto-stopping command is sent. Vibration speed signal of vibrating machine 2 is fed back in the negative to stopping device. A changeover switch S is switched to the stopping device side when stopping command is sent. Since this force acts in the inverse direction of the vibrating direction of a movable part of the vibrating apparatus 2, the vibrating machine 2 stops quickly.
Description
The present invention relates to for example utilize the oscillatory system of vibration feeding parts.
Figure 10 illustrates the self-excited oscillating type vibrator of conventional example, oscillatory system is represented with 1 as a whole in the drawings, vibrating machine 2 for example is a vibration feeder, autoexcitation controller 4 receives the output near the eddy current type vibrating detector 3 of the leaf spring configuration of vibrating machine, the output of controller 4 is amplified by power amplifier 5, and be that vibratory driver 6 provides electric power to the solenoid actuated portion of vibrating machine 2, make this vibrating machine 2 vibrations.Vibrating machine 2 produces autoexcitation by autoexcitation controller 4, but for its driving is stopped, as the time t in Figure 11
0When providing a danger signal, for example by circuit a between cut-out autoexcitation controller 4 and the power amplifier 5 or the circuit b between power amplifier 5 and the vibratory driver 6, vibrating machine 2 is stopped, at this moment as shown in figure 11, the movable part of this vibrating machine 2 is that the amplitude of hopper is from time t
0The exponential function decay is pressed in beginning in time, (at time t
0Before with given amplitude vibration), the amplitude fading of this hopper needs considerable time to zero.
In the hopper inside of this vibrating machine 2, as everyone knows, spiral material road is arranged, part is aligned along this material road supply with the outside, because the amplitude of hopper is sending the time t of danger signal
0Need considerable time just can decay to zero afterwards, thus with time t
0In time, do not stop to outside feeding parts, at time t
0Certain hour afterwards is still to outside feeding parts, and different according to circumstances, this is extremely unsuitable sometimes.
Send cease and desist order after, up to the time of vibrating machine 2 before stopping fully, the attenuation characteristic decision that has by this vibrating machine 2 usually.Promptly by with the decision of the proportional resistance of the speed of its movable part, if increase its extinguishing coefficient then must on resonant frequency, apply very big power, thereby will cause degradation of energy.
Figure 12 illustrates so-called forced oscillation type oscillatory system, represent with 1 as a whole, supplying with vibrating machine from the electric current of industrial power 7 by controller 8 is the magnet coil 10 of the electromagnet 9 of vibration feeder, identical with the structure of the vibrating machine 2 that in above-mentioned self-excited oscillating type, adopts, in Figure 12, illustrate particularly.Among the figure, industrial power 7 for example is 50Hz, hopper 11 by means of the electric current of supplying with by controller 8 with given amplitude vibration, in this forced oscillation type oscillatory system, dispose not shown switch among the circuit d between circuit c between industrial power 7 and controller 8 or controller 8 and the magnet coil 10, can stop the vibration of hopper 11 by turn-offing this switch.Even in this case, identical with self-excited oscillating type vibrator 1, also to carry out transient oscillations shown in Figure 11, up to stopping to need considerable time fully.Therefore will produce and above-mentioned same unsuitable situation.
In view of the above problems, the purpose of this invention is to provide a kind of oscillatory system, need not strengthen the extinguishing coefficient of vibrating machine, but when increasing the resonance multiplying power, can stop the vibration of the movable part of vibrating machine hastily.
For reaching above purpose, oscillatory system of the present invention is a kind of self-excited oscillating type vibrator, it forms C/LOOP by following each several part, promptly be used to detect the vibration velocity detecting device of vibration machine vibration velocity, with the output of this vibration velocity detecting device as positive feedback signal and the autoexcitation controller that amplified with the 1st feedback gain, the output of this controller is carried out the power amplifier of power gain, and the vibratory driver that receives the output of this power amplifier, utilizing above-mentioned vibratory driver that above-mentioned vibration machine is encouraged shakes, this oscillatory system is characterised in that: when stopping above-mentioned vibration machine C/LOOP is disconnected, the output of above-mentioned vibration velocity detecting device as negative-feedback signal, and is amplified and supplied with above-mentioned vibratory driver with the 2nd feedback gain.
In addition, for reaching above purpose, oscillatory system of the present invention is a kind of self-excited oscillating type vibrator, it forms C/LOOP by following each several part, promptly be used to detect the vibration displacement detector of vibration machine vibration displacement, with the output of this vibration displacement detector as positive feedback signal and the autoexcitation controller that amplified and lag behind with integral element or first-order lag link control phase with the 1st feedback gain, the output of this controller is carried out the power amplifier of power gain, and the vibratory driver that receives the output of this power amplifier, utilizing this vibratory driver that above-mentioned vibration machine is encouraged shakes, this oscillatory system is characterised in that: when stopping above-mentioned vibration machine C/LOOP is disconnected, differential is carried out in output to above-mentioned vibration displacement detector, and is amplified and supply with above-mentioned vibratory driver as negative-feedback signal and with the 2nd feedback gain.
In addition, for reaching above purpose, oscillatory system of the present invention is a kind of self-excited oscillating type vibrator, it forms C/LOOP by following each several part, promptly be used to detect the vibration displacement detector of vibration machine vibration displacement, with the output of this vibration displacement detector as positive feedback signal and the autoexcitation controller that amplified with the 1st feedback gain, the output of this controller is carried out the power amplifier of power gain, and the electromagnet that receives the output of this power amplifier, magnetic attracting force that the electric current of this magnet spool produces is flow through in utilization to be encouraged above-mentioned vibration machine to shake, this oscillatory system is characterised in that: when stopping above-mentioned vibration machine C/LOOP is disconnected, 2 subdifferentials are carried out in output to above-mentioned vibration displacement detector, leading 90 ° of phase places and amplified the back as negative-feedback signal with the 2nd feedback gain and supply with above-mentioned magnet spool after 1 subdifferential.
In addition, for reaching above purpose, oscillatory system of the present invention is characterised in that: be provided with the vibration velocity detecting device, be used to detect under encouraging of the vibratory driver that electric power is provided by source of AC shaken the power effect and the vibration velocity of the vibration machine of forced oscillation, when stopping above-mentioned vibration machine, with above-mentioned vibratory driver and above-mentioned Ac Dump, and the output of above-mentioned vibration velocity detecting device amplified, supply with above-mentioned vibratory driver as negative-feedback signal.
In addition, for reaching above purpose, oscillatory system of the present invention is characterised in that: be provided with the vibration velocity detecting device, be used to detect under encouraging of the vibratory driver that electric power is provided by source of AC shaken the power effect and the vibration velocity of the vibration machine of forced oscillation, when stopping above-mentioned vibration machine, the output of above-mentioned vibration velocity detecting device is also amplified as negative-feedback signal, and lag behind, supply with above-mentioned vibratory driver then with integration or first-order lag link control phase.
In addition, for reaching above purpose, oscillatory system of the present invention will be supplied with the mechanism of shaking of encouraging of vibration machine from the electric energy of power supply, make the movable part vibration of this vibration machine, it is characterized in that: the vibration velocity detecting device is near above-mentioned movable part or be installed on the movable part, when stopping this movable part, above-mentioned power supply and the above-mentioned mechanism of shaking of encouraging are cut off, simultaneously directly or amplify the back inverse feedback to the above-mentioned mechanism of shaking of encouraging with the output of above-mentioned vibration velocity detecting device.
As invention according to claim 1, then when stopping above-mentioned vibration machine, C/LOOP is disconnected, with the output of above-mentioned vibration velocity detecting device as negative-feedback signal, and amplified the back with the 2nd feedback gain and supplied with above-mentioned vibratory driver, vibration machine after the halt instruction is played and the reciprocal effect of vibration velocity, so with natural decling phase ratio in the past, can forcibly make vibration velocity is zero.The time ratio of the speed vanishing of vibration machine was shortened in the past greatly.
In addition, as invention according to claim 2, then when stopping above-mentioned vibration machine, C/LOOP is disconnected, differential is carried out in output to above-mentioned vibration displacement detector, and amplified the back as negative-feedback signal with the 2nd feedback gain and supplied with above-mentioned vibratory driver, so obtain vibration velocity by differential is carried out in the output of vibration displacement detector equally, remain as negative-feedback signal and supply with above-mentioned vibratory driver.Identically with above-mentioned situation play enforceable effect, thereby can promptly make the amplitude vanishing of vibration machine as braking force.
As invention according to claim 3, then when stopping above-mentioned vibration machine, C/LOOP is disconnected, 2 subdifferentials are carried out in output to above-mentioned vibration displacement detector, leading 90 ° of phase places after 1 subdifferential, and amplified the back as negative-feedback signal with the 2nd feedback gain and supplied with above-mentioned magnet spool, electromagnet is arranged in C/LOOP, it postpones 90 ° of phase places, so obtain vibration velocity by 1 subdifferential is carried out in the output of vibration displacement detector, by making electromagnet delay or leading, and resulting vibration velocity is supplied with as negative-feedback signal, identical with the effect of above-mentioned each invention, can make the amplitude vanishing hastily of vibration machine.
In addition, as invention according to claim 5, then vibration machine carries out compel vibration, when stopping its vibration, with its vibratory driver and Ac Dump, and the output that will detect the device of its movable part vibration velocity is amplified the back inverse feedback to vibratory driver, so vibratory driver to the effect of movable part brake activation, can promptly make its vibration stop.
As invention according to claim 6, then vibration machine carries out compel vibration, detect the displacement of its movable part, when stopping to vibrate,, the output of this detecting device is amplified and lagged behind with integral element or first-order lag link control phase as negative-feedback signal and with feedback gain, supply with above-mentioned vibratory driver then Ac Dump, so the movable part of this moment is subjected to reciprocal power, identical with the invention of aforesaid right requirement 5, be applied in brake action, it is stopped rapidly.
As invention according to claim 8, then encourage and (for example shake mechanism the electric energy of power supply (the industrial frequency power supply gets final product) being supplied with the general vibration machine, electromagnet) makes in the oscillatory system of its movable part vibration, be provided with detect the movable part vibration velocity device (at this moment, also can detect power and with its integration or detect displacement and with its differential), when stopping this movable part, with supply disconnecton, and directly or be added to after amplifying and encourage the mechanism of shaking with the output of detecting device, so, its movable part is stopped by applying the power opposite with the direction of vibration of movable part.
Fig. 1 is the block diagram of the oscillatory system of the present invention the 1st embodiment.
Fig. 2 is the simulation curve figure that is used to illustrate its action.
Fig. 3 is the vibration displacement time history plot of the action of expression device of the present invention.
Fig. 4 is the block diagram of the oscillatory system of the present invention the 2nd embodiment.
Fig. 5 is the block diagram of the oscillatory system of the present invention the 3rd embodiment.
Fig. 6 is the block diagram of the minor loop of expression the present invention the 4th embodiment main portion.
Fig. 7 is the time plot that is used to illustrate its action.
Fig. 8 is the time plot that is used to further specify its action.
Fig. 9 is the block diagram of the oscillatory system of the present invention the 5th embodiment.
Figure 10 is the block diagram of the self-excited oscillating type vibrator of conventional example.
Figure 11 is the time dependent time plot of amplitude that expression is used to illustrate its action.
Figure 12 is the block diagram of the oscillatory system of another conventional example.
Nomenclature:
37 shutdown features
40 shutdown features
70 shutdown features
The S change-over switch
Below, with reference to the description of drawings embodiments of the invention.
Fig. 1 illustrates the oscillatory system of the present invention the 1st embodiment, and oscillatory system is represented with 1A as a whole among the figure, and vibrating machine 2 is identical with conventional example in the present embodiment to be a vibration feeder, and is irrelevant with this vibrating system, generally represents with characteristic map shown in Figure 2.That is, with vibration equation formula mdx
2/ dt
2+ cdx/dt+kx=Kdx/dt represents, to this equation, multiply by 1/m (m is the quality of movable part) and obtains dx
2/ dt
2, multiply by s (s is the Laplace transform operator), to obtain dx/dt be speed, dx/dt multiply by extinguishing coefficient c, is used as inverse feedback in this vibrating system, multiply by 1/s again and obtains displacement x, and x be multiply by spring constant k as inverse feedback.
In this vibrating system, speed dx/dt detects with vibration velocity detector 21.In addition, also can sense acceleration integration 1 time again, or detected amplitude is carried out 1 subdifferential again.The output of vibration velocity detector 21 is integrated the back and supplies with amplitude controller 23 in amplitude detecting circuit 22.Autoexcitation controller 4 is identical with in the past structure, has alternate amplifier 28 and saturation limiter 29.The output of vibration velocity detector 21 is supplied with the shutdown feature 26 relevant with this device by circuit 24.According to present embodiment, it is that the power amplifier 27 of Kv constitutes by gain.Be connected a change-over switch S on the mouth of shutdown feature 26 and autoexcitation controller 4, its contact heel is connecting vibratory driver 6, according to present embodiment, promptly connects the magnet coil of electromagnet.
In amplitude controller 23 comparator etc. is housed, an one input end is used to set given amplitude, receives the output of amplitude detecting circuit 22 on another input end, according to the saturation limiter 29 of its deviation control autoexcitation controller 4.In addition, the output of vibration velocity detector 21 is by the positive and negative autoexcitation controller 4 that is fed to, and inverse feedback is to shutdown feature 26 simultaneously.
The structure of the present invention the 1st embodiment below illustrates its action as mentioned above.
When vibrating machine 2 was driven, change-over switch S closed at autoexcitation controller 4 one sides.Therefore the output of vibration velocity detector 21 is fed to autoexcitation controller 4 by positive and negative, so vibrating machine 2 as everyone knows, carries out autoexcitation.Electromagnet 6 has 90 ° phase delay, and vibrating machine 2 vibrates at resonance point, so the phase difference of power and displacement is 90 ° hysteresis, therefore in autoexcitation controller 4 even without leading in phase or phase delay, in this C/LOOP, also can obtain 180 ° phase difference, can stably carry out autoexcitation.In amplitude detecting circuit 22, constantly detect the amplitude of this vibrating machine 2, and the level of the saturation limiter 29 of control autoexcitation controller 4, the amplitude of vibrating machine 2 is equated with the amplitude of setting in amplitude controller 23, so vibrating machine 2 can be with given amplitude vibration.
When change-over switch S being switched to shutdown feature 26 1 examples in order to stop this vibrating machine 2, the output of vibration velocity detector 21 is fed into shutdown feature 26, and this output is by inverse feedback and amplify the back with gain Kv and supply with vibratory driver 6.Because of this application force is opposite with the direction of vibration of vibrating machine 2, thus with in the past natural decling phase ratio, vibrating machine 2 can stop very fast.Fig. 2 and Fig. 3 are the above-mentioned action effects of representing with emulation, Fig. 2 illustrates vibrational waveform in the past, begin autoexcitation 0 millisecond of moment, as shown in the figure, amplitude increases and reaches given amplitude, provides 500 milliseconds of moment to stop the vibration instruction, and vibration displacement changes as shown in the figure, can see before movable part stops approximately and need 1～2 second (attenuation ratio of this moment is 0,005.And the resonance multiplying power is 100.)。Figure 3 shows that the effect of embodiments of the invention, carry out same autoexcitation, stop the vibration instruction, then in 0.12 second, promptly stop as providing 500 milliseconds of moment.That is, instruct time of amplitude vanishing of movable part approximately can shorten to 1/10, therefore the component delivery of vibration feeder is stopped instantaneous from providing to stop to vibrate.
Fig. 4 illustrates the oscillatory system of the present invention the 2nd embodiment, and integral body represents that with 1B be marked with same-sign with the cooresponding part of the 1st embodiment, it describes omission in detail.
In the present embodiment promptly, the vibration displacement of vibrating machine 2 detects with vibration displacement detector 31, after suitably being amplified by amplitude detecting circuit 32, supplies with amplitude controller 23.After also the output of vibration displacement detector 31 further can being amplified with certain gain, arrive autoexcitation controller 34 by circuit 35 inverse feedbacks.In addition, also be fed into the shutdown feature relevant 37 with the present invention as negative-feedback signal, be fed in the present embodiment have first-order lead link s multiply by the gain K
DThe interchange multiplying arrangement 38 of function.In autoexcitation controller 34, alternate amplifier 28 ' comprise integral element 1/s.Vibratory driver 6 does not produce phase delay in the present embodiment.
The structure of the present invention the 2nd embodiment below illustrates its action as mentioned above.
When autoexcitation, change-over switch S closes at autoexcitation controller 34 1 sides.Therefore the output of vibration displacement detector 31 is used as the negative-feedback signal supply, and it is integrated afterwards, and phase place is delayed 90 °, so when vibrating machine 2 when resonance point vibrates, in C/LOOP, have 180 ° phase difference, thereby can stably carry out autoexcitation.When in order to stop vibrating machine 2 change-over switch S being switched to shutdown feature 37 1 sides, the output of vibration displacement detector 31 is by inverse feedback, by its differential being made 90 ° of leading in phases, with gain KD amplify the back supply with vibratory driver 6 '.Therefore, with the degenerative situation of vibration velocity is the same, promptly leading in phase is equivalent with carrying out differential for 90 °, so can make the vibration of this vibrating machine 2 and the 1st embodiment equally promptly trend towards zero.
Fig. 5 illustrates the oscillatory system of the present invention the 3rd embodiment, represents with 1C as a whole, is marked with same-sign with the cooresponding part of the foregoing description, and it describes omission in detail.
In the present embodiment, the output of vibration displacement detector 31 also is that inverse feedback arrives autoexcitation controller 4, but goes back inverse feedback in addition to by having s
2Leading characteristic and gain for K
DDThe shutdown feature 40 that constitutes of alternate amplifier 42.Be the output of vibration displacement detector 31 can be after 1 subdifferential leading 90 ° of phase places, also can carry out 2 subdifferentials.And vibratory driver 41 is identical with the 1st embodiment, and actuator is an electromagnet, but has the phase delay link of 1/ (s+a).
The structure of the present invention the 3rd embodiment below illustrates its effect as mentioned above.
When change-over switch S was connected autoexcitation controller 4 one sides, vibrating machine 2 similarly carried out autoexcitation with the foregoing description.When it being stopped change-over switch S switched to shutdown feature 40 1 sides, the output of vibration displacement detector 31 is by inverse feedback, by 2 subdifferentials, or after 1 subdifferential leading 90 ° of phase places, supply with vibratory driver 41 behind leading 90 ° of the identical quilt of speed signal with the 1st embodiment.Therefore, can constitute 180 ° phase difference in C/LOOP, the movable part of vibrating machine 2 is subjected to the effect of the power opposite with its direction of vibration simultaneously, stops rapidly because of inverse feedback makes its vibration.
Fig. 6 to Fig. 8 illustrates the 4th embodiment of the present invention, and present embodiment is to increase minor loop shown in Figure 6 in the 1st embodiment.That is, vibratory driver is identical with the 1st embodiment to be electromagnet 51, and (1/R) * (delay component of 1/ (1+as), its output are that current i is current probe 59 detections of Ki by circuit 58 by gain, gain 60 with gain K by the electric current local feedback again but it has
2After the amplification, inverse feedback is to comparator 53.On the other hand, as mentioned above, vibration velocity signal inverse feedback is to comparator 54, and it is exported the command value of device 53 as a comparison and supplies with voltage form, and the output of this comparator 53 is supplied with has electric current local feedback gain K
1Amplifier 56 and gain for K
0Power amplifier 57, electromagnet 51 is supplied with in the output of amplifier 57.By increasing such minor loop, electromagnet 51 is the overexcitation state as shown in Figure 8, as sends halt instruction, and voltage sharply rises and changes as shown in the figure in time, therefore comparing with the situation that does not adopt minor loop rises accelerates, and vibrating machine 2 is stopped.Fig. 7 is not for adopting the situation of electric current local feedback control, and with the input of step form, current i at this moment increases at leisure, thereby stops and will being delayed as the voltage e of command value.
Fig. 9 illustrates the oscillatory system of the present invention the 5th embodiment, represents with 1D as a whole, is the forced oscillation type, and the speed dx/dt of vibrating machine 2 to comparator 72, is K by gain by inverse feedback
vAmplifier 71 be added on the electromagnet of vibrating machine 2 after amplifying.As mentioned above, electromagnet has 90 ° phase delay, if existing with the frequency drives near resonance point, then as applying the power just in time opposite with vibration velocity to movable part brake activation power, vibration stops rapidly.
When having than large deviation up and down, in shutdown feature 70, increase the leading in phase link and get final product at resonance point.
More than, various embodiments of the present invention have been described, certainly, the invention is not restricted to this, be that various distortion can be made in the basis with technological thought of the present invention.
For example, in above embodiment, shutdown feature has aforesaid leading in phase characteristic, the phase delay of but also variable more general having (1+aTs)/(Kv * (1+Ts)), and make the phase delay of this a corresponding to actuator.
In addition, in above embodiment, only illustrated, but obviously also can adopt other the conduction formula or the vibratory driver of piezoelectric type with the situation of electromagnet as actuator.
In addition, the embodiment of Fig. 6 is applicable to the 1st embodiment, but also can be applicable to other embodiment certainly.At this moment, amplifier 71 is a power amplifier in the embodiment of Fig. 9.But also can change to power amplifier being arranged between change-over switch S and the vibrating machine 2.
On form, also be not limited to above embodiment, it no matter is the mechanism of shaking of encouraging of the general self-excited oscillating type or the vibration machine of forced oscillation type, electromagnet might as well, the conduction formula, piezoelectric type might as well, all can be suitable for all mechanisms, it is being applied electric energy and producing in the machine of encouraging the power of shaking, when stopping the vibration of its movable part, by will near this movable part install or vibration velocity detecting device mounted thereto (but also sense acceleration is carried out integration again, or detect vibration displacement and carry out differential again) output directly or amplify the back inverse feedback to encouraging the mechanism of shaking, make it be subjected to effect with current direction of vibration opposite effect power, thereby its movable part is stopped.
As mentioned above, as according to oscillatory system of the present invention, then can vibration be stopped hastily when ceasing and desisting order sending, for example under the situation of vibration feeder, can stop feeding parts immediately to next workshop section.
Claims (8)
1. oscillatory system, it is a kind of self-excited oscillating type vibrator, form C/LOOP by following each several part, promptly be used to detect the vibration velocity detecting device of vibration machine vibration velocity, with the output of this vibration velocity detecting device as positive feedback signal and the autoexcitation controller that amplified with the 1st feedback gain, the output of this controller is carried out the power amplifier of power gain, and the vibratory driver that receives the output of this power amplifier, utilizing above-mentioned vibratory driver that above-mentioned vibration machine is encouraged shakes, this oscillatory system is characterised in that: when stopping above-mentioned vibration machine C/LOOP is disconnected, the output of above-mentioned vibration velocity detecting device as negative-feedback signal, is amplified the back with the 2nd feedback gain and supplied with above-mentioned vibratory driver.
2. oscillatory system, it is a kind of self-excited oscillating type vibrator, form C/LOOP by following each several part, promptly be used to detect the vibration displacement detector of vibration machine vibration displacement, with the output of this vibration displacement detector as positive feedback signal and the autoexcitation controller that amplified and lag behind with integral element or first-order lag link control phase with the 1st feedback gain, the output of this controller is carried out the power amplifier of power gain, and the vibratory driver that receives the output of this power amplifier, utilizing this vibratory driver that above-mentioned vibration machine is encouraged shakes, this oscillatory system is characterised in that: when stopping above-mentioned vibration machine C/LOOP is disconnected, differential is carried out in output to above-mentioned vibration displacement detector, and is amplified the back as negative-feedback signal with the 2nd feedback gain and supply with above-mentioned vibratory driver.
3. oscillatory system, it is a kind of self-excited oscillating type vibrator, form C/LOOP by following each several part, promptly be used to detect the vibration displacement detector of vibration machine vibration displacement, with the output of this vibration displacement detector as positive feedback signal and the autoexcitation controller that amplified with the 1st feedback gain, the output of this controller is carried out the power amplifier of power gain, and the electromagnet that receives the output of this power amplifier, utilization is flow through magnetic attracting force that the electric current of this magnet spool produces and above-mentioned vibration machine is encouraged is shaken, this oscillatory system is characterised in that: when stopping above-mentioned vibration machine C/LOOP is disconnected, 2 subdifferentials are carried out in output to above-mentioned vibration displacement detector, leading 90 ° of phase places and amplified the back as negative-feedback signal with the 2nd feedback gain and supply with above-mentioned magnet spool after 1 subdifferential.
4. oscillatory system according to claim 1 and 2 is characterized in that: by making the leading in phase of the above-mentioned vibratory driver hysteresis usefulness of compensation, above-mentioned negative-feedback signal is supplied with above-mentioned vibratory driver.
5. oscillatory system, it is characterized in that: be provided with the vibration velocity detecting device, be used to detect under encouraging of the vibratory driver that electric power is provided by source of AC shaken the power effect and the vibration velocity of the vibration machine of forced oscillation, when stopping above-mentioned vibration machine, with above-mentioned vibratory driver and above-mentioned Ac Dump, and the output of above-mentioned vibration velocity detecting device amplified, supply with above-mentioned vibratory driver as negative-feedback signal.
6. oscillatory system, it is characterized in that: be provided with the vibration velocity detecting device, be used to detect under encouraging of the vibratory driver that electric power is provided by source of AC shaken the power effect and the vibration velocity of the vibration machine of forced oscillation, when stopping above-mentioned vibration machine, the output of above-mentioned vibration velocity detecting device is also amplified as negative-feedback signal, and, supply with above-mentioned vibratory driver then with integration or the hysteresis of first-order lag link control phase.
7. according to any one described oscillatory system in the claim 1～6, it is characterized in that: be provided with the drive current of the above-mentioned vibratory driver of detection or the device of magnetic flux, the output of this device is amplified the back inverse feedback to above-mentioned power amplifier.
8. oscillatory system, to supply with the movable part vibration that the mechanism of shaking makes this vibration machine of encouraging of vibration machine from the electric energy of power supply, it is characterized in that: the vibration velocity detecting device is installed or is installed on the movable part near above-mentioned movable part, when stopping this movable part, above-mentioned power supply and the above-mentioned mechanism of shaking of encouraging are cut off, simultaneously directly or amplify the back inverse feedback to the above-mentioned mechanism of shaking of encouraging with the output of above-mentioned vibration velocity detecting device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10046695A JP3531278B2 (en) | 1995-03-31 | 1995-03-31 | Vibration device |
| JP100466/95 | 1995-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1134907A true CN1134907A (en) | 1996-11-06 |
Family
ID=14274693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96102970A Pending CN1134907A (en) | 1995-03-31 | 1996-03-28 | Vibration device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3531278B2 (en) |
| KR (1) | KR100376008B1 (en) |
| CN (1) | CN1134907A (en) |
| TW (1) | TW336924B (en) |
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| CN102340279A (en) * | 2010-05-13 | 2012-02-01 | 安森美半导体贸易公司 | Drive control circuit for linear vibration motor |
| CN102027168B (en) * | 2008-05-16 | 2013-08-14 | 沃依特专利有限责任公司 | Shaking device |
| CN106104227A (en) * | 2014-03-18 | 2016-11-09 | 株式会社石田 | Dispersion feedway and combined metering device |
| CN110386422A (en) * | 2018-04-19 | 2019-10-29 | 昕芙旎雅有限公司 | The control device and work transfer device of vibrational system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4237928B2 (en) * | 2000-10-10 | 2009-03-11 | カヤバ工業株式会社 | Exciter control device |
| GB0202348D0 (en) * | 2002-02-01 | 2002-03-20 | Bae Systems Plc | Damping of vibrations |
| JP2008156009A (en) * | 2006-12-20 | 2008-07-10 | Shinko Electric Co Ltd | Oscillation controller and oscillation controlling method |
| JP5317587B2 (en) * | 2008-08-29 | 2013-10-16 | 公立大学法人 滋賀県立大学 | Control actuator and vibration control method |
| JP5470154B2 (en) * | 2010-05-13 | 2014-04-16 | セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー | Linear vibration motor drive control circuit |
-
1995
- 1995-03-31 JP JP10046695A patent/JP3531278B2/en not_active Expired - Fee Related
-
1996
- 1996-03-13 TW TW085103006A patent/TW336924B/en not_active IP Right Cessation
- 1996-03-28 CN CN96102970A patent/CN1134907A/en active Pending
- 1996-03-29 KR KR1019960009174A patent/KR100376008B1/en not_active IP Right Cessation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102027168B (en) * | 2008-05-16 | 2013-08-14 | 沃依特专利有限责任公司 | Shaking device |
| CN102340279A (en) * | 2010-05-13 | 2012-02-01 | 安森美半导体贸易公司 | Drive control circuit for linear vibration motor |
| CN106104227A (en) * | 2014-03-18 | 2016-11-09 | 株式会社石田 | Dispersion feedway and combined metering device |
| CN106104227B (en) * | 2014-03-18 | 2020-05-05 | 株式会社石田 | Dispersion supply device and combination weighing device |
| CN110386422A (en) * | 2018-04-19 | 2019-10-29 | 昕芙旎雅有限公司 | The control device and work transfer device of vibrational system |
| CN110386422B (en) * | 2018-04-19 | 2022-05-17 | 昕芙旎雅有限公司 | Control device for vibration system and workpiece conveying device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3531278B2 (en) | 2004-05-24 |
| KR960033567A (en) | 1996-10-22 |
| KR100376008B1 (en) | 2003-07-18 |
| TW336924B (en) | 1998-07-21 |
| JPH08268530A (en) | 1996-10-15 |
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