JP4565083B2 - Ultrasonic screen - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to an ultrasonic sieve device that vibrates a sieve frame and vibrates a sieve member.
[0002]
[Prior art]
Conventionally, as this type of ultrasonic fluid device, a device in which a resonator connected to an ultrasonic transducer is brought into direct contact with a fluid surface of a fluid member has been proposed (see Japanese Patent Publication No. 8-500058). .
[0003]
[Problems to be solved by the invention]
However, in such a sieve device, the resonator that is in contact with the sieve surface of the sieve member is configured to come into contact with the entire surface of the sieve member even though the gap is open. In addition, there is a problem that an object to be separated by the fluid adheres or is attached to the fluid member, which causes damage to the fluid member or a complicated configuration.
[0004]
[Means to solve the problem]
In the present invention , the vibration surface is fixed in contact with a fluid frame formed in a substantially circular or elliptical shape to which a fluid member is fixed, and a projecting portion projecting inside the substantially circular or elliptical fluid frame . One or a plurality of ultrasonic transducers and an oscillator for supplying oscillation power to the one or a plurality of ultrasonic transducers, and the plurality of ultrasonic transducers oscillate in phase Alternatively, the ultrasonic transducer may be removable.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, by fixing the ultrasonic vibrator to a circular or elliptical sieve frame, the sieve member fixed to the sieve frame can be evenly vibrated from the periphery of the sieve frame, and the sieve surface of the sieve member Since the entire surface is open, it is possible to efficiently vibrate what you want to divide the screen, and because the ultrasonic vibrator is fixed to the screen frame, multiple installations are possible, and By driving the sonic transducers in the same phase, the amount of fluid can be powered up.
[0006]
【Example】
FIG. 1 is a perspective view of an ultrasonic sieve apparatus according to an embodiment of the present invention. FIG. 2 is a partial sectional side view of the sieve apparatus of FIG. Are fixed, and the end portions of the ultrasonic transducers 3 and 4 are fixed to the protruding portions 1a and 1b protruding inside the fluid frame 1, respectively.
[0007]
The ultrasonic vibrators 3 and 4 are respectively composed of Langevin type vibrators in which the piezoelectric vibrator 5 is sandwiched between metal blocks 6 and 7, and the piezoelectric vibrator 5 of the ultrasonic vibrators 3 and 4 is connected to the oscillator 8 from the oscillator 8. Oscillation power is applied.
[0008]
In the ultrasonic fluidizer of this embodiment configured as described above, the oscillation power is supplied from the oscillator 8 to the piezoelectric vibrators 5 of the ultrasonic vibrators 3 and 4 fixed to the projecting portions 1a and 1b of the fluid frame 1. Then, the ultrasonic vibrators 3 and 4 vibrate the sieve frame 1 by vibrating the overhanging portions 1a and 1b of the sieve frame 1, thereby vibrating the sieve member 2, so that the sieve surface of the sieve member 2 is greatly opened. Therefore, the fluid member 2 can be vibrated efficiently.
[0009]
FIG. 3 is a partial cross-sectional side view of an ultrasonic sieve apparatus according to another embodiment of the present invention. Reference numeral 1 denotes a sieve frame, 2 denotes a fluid member, 3 and 4 denote an ultrasonic transducer, and 8 denotes an oscillator. However, in this embodiment, a part of the ultrasonic transducers 3 and 4 is covered with the transducer covers 9 and 10 for dust prevention and insulation, respectively. It is configured.
[0010]
In this embodiment configured as described above, since the transducer covers 9 and 10 attached to the ultrasonic transducers 3 and 4 can be directly provided, the fluid covers can be divided by holding the transducer covers 9 and 10. .
[0011]
In the above-described embodiment, two ultrasonic transducers are fixed to the fluid frame 1, but one or three or more may be used.
[0012]
【The invention's effect】
As described above, in the ultrasonic screen apparatus of the present invention, since the ultrasonic vibrator is mounted on the screen frame, there is no obstacle to the screen surface of the screen member, and the screen surface can be opened widely and a plurality of ultrasonic waves can be opened. A vibrator can be attached, and further, there is an advantage that a fluid effect is increased by driving a plurality of ultrasonic vibrators in the same phase.
[Brief description of the drawings]
FIG. 1 is a perspective view of an ultrasonic sieve apparatus according to an embodiment of the present invention.
FIG. 2 is a partial cross-sectional side view of the ultrasonic fluidic device of FIG.
FIG. 3 is a partial cross-sectional side view of an ultrasonic sieve apparatus according to another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fluid frame 2 Fluid member 3, 4 Ultrasonic vibrator 5 Piezoelectric vibrator 6, 7 Metal block 8 Oscillator 9, 10 Vibrator cover

Claims (3)

One or a plurality of sieve frames that are formed in a substantially circular or elliptical shape to which a fluid member is fixed, and a vibrating surface that is in contact with and fixed to a projecting portion that projects to the inside of the substantially circular or elliptical sieve frame. And an oscillator for supplying oscillation power to the one or a plurality of ultrasonic transducers.   2. The ultrasonic fluid apparatus according to claim 1, wherein the plurality of ultrasonic transducers oscillate in phase.   The ultrasonic fluidic device according to claim 1, wherein the ultrasonic vibrator can be detached.

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