JP2002011409A - Ultrasonic sieving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve conventional problems that a resonator becomes a hindrance to a material to be sieved, the material to be sieved is stuck to the resonator of the structure is complicated because the resonator being in contact with the sieving surface of a sieving member is structured to be in contact with the whole surface of the sieving member through a certain space is left. SOLUTION: A sieving member 2 is mounted in the middle part of a housing 1 provided with a material charge port 1a at the upper part. In the sieving member 2, a wire mesh 4 is spread on all over the surface of a nearly circuit sieving frame 3, two vibrator attaching members 5 are mounted to face each other to project upward from the sieving frame 3, an ultrasonic vibrator 6 is fitted to the ultrasonic vibrator attaching member 5 with the screw engagement to project outside from the frame 6, the ultrasonic vibrator 6 is projected to the outside of the housing 1 and is constituted of a Langevin type vibrator and the oscillation output is applied to a piezoelectric vibrator mounted to the ultrasonic vibrator 6 from an oscillator 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic screen device which vibrates an ultrasonic vibrator in which a vibrator mounting member projecting upward from a screen is vibrated to vibrate the screen frame to vibrate the screen member. It is about.

[0002]

2. Description of the Related Art Heretofore, as this type of ultrasonic screen device, there has been proposed an ultrasonic screen device in which a resonator connected to an ultrasonic transducer is brought into direct contact with a screen surface of a screen member (Japanese Patent Application Laid-Open No. Hei 8-8). No. 500058).

[0003]

However, in such a sieve device, the resonator that is in contact with the sieve surface of the sieve member is configured so as to be in contact with the entire surface of the sieve member although the gap is open. However, there is a problem that the material to be screened is obstructed, the material to be screened adheres, and further, since the material to be screened is attached to the screen member, the screen member is damaged or the configuration becomes complicated.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a wire mesh is provided on a sieve frame of a sieve member, and at least one vibrator mounting member is mounted on an upper or lower part of the sieve frame to supply a raw material to the sieve frame. The ultrasonic vibrator is mounted in the housing, and the ultrasonic vibrator is attached to the vibrator mounting member by screw engagement with the vibrator mounting member so as to protrude outward from the housing. Supply, the ultrasonic transducer may be a Langevin type transducer, furthermore, the plurality of ultrasonic transducers may be oscillated in phase, or from the outside of the housing. The ultrasonic transducer may be mounted so that it can be removed.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the present invention, a sieving member having a wire mesh attached to the entire surface of a sieving frame is mounted on a housing, and ultrasonic vibration is applied to a vibrator mounting portion of the sieving member of the sieving member so as to project outward from the housing. Since the wire mesh fixed to the screen frame can be vibrated evenly from the periphery of the screen frame by engaging the screw with the screw, the material to be screened can be efficiently vibrated and passed therethrough. Since the ultrasonic vibrator is screw-engaged with the mounting member, the ultrasonic vibrator can be replaced outside the housing, and a plurality of ultrasonic vibrators can be mounted on the screen frame, Further, by driving a plurality of ultrasonic transducers in the same phase, the sieve amount can be increased.

[0006]

FIG. 1 is a sectional side view of an ultrasonic screen device according to one embodiment of the present invention, and FIG. 2 is a perspective view of a screen member of the screen device of FIG.
A screen member 2 is attached to an intermediate portion of the screen member. The screen member 4 has a substantially circular screen frame 3 and a wire mesh 4 stretched over the entire surface thereof.
Further, two vibrator mounting members 5 are mounted facing each other so as to protrude upward from the screen frame 3, and a screw engaging member is mounted on the vibrator mounting member 5 such that the ultrasonic vibrator 6 protrudes outward from the frame 3. The ultrasonic vibrator 6 is protruded outside the housing 1, and the ultrasonic vibrator 6 is a Langevin type vibrator, and is a piezoelectric vibrator mounted on the ultrasonic vibrator 6. The oscillation output from the oscillator 7 is applied to the oscillator.

In the sieving apparatus of this embodiment having the above-described configuration, when an oscillation output is applied from the oscillator 7 and the material to be sieved is injected from the material inlet 1a of the housing 1, the sieving frame 3 is used. Since the ultrasonic wave is transmitted from the ultrasonic vibrator 6 attached to the attachment member 5 to the wire mesh 4, the material to be screened on the wire mesh 4 efficiently ultrasonically vibrates the wire mesh 4 to efficiently screen the wire. Can be passed through.

Further, since the ultrasonic vibrator 6 is mounted on the mounting member 5 by screw fitting, when the ultrasonic vibrator 6 breaks down, it can be easily replaced from outside the housing 1.

FIG. 3 is a perspective view of a sieve member of an ultrasonic sieve apparatus according to another embodiment of the present invention, 3 is a sieve frame, 4 is a wire mesh, 5 is a vibrator mounting member, and 6 is an ultrasonic vibrator. Since these configurations are the same as those in the above embodiment, the description is omitted. In this embodiment, the vibrator mounting member 5 is set to be as long as the width of the screen frame 3 and attached to the screen frame 3. Things.

In this embodiment, the vibrator mounting member 5 is long, so that the portion of the ultrasonic vibrator 6 for screwing the tip of the ultrasonic vibrator 6 can be lengthened, and the screw engaging portion can be made more rigid. The vibrator mounting member 5
Of the ultrasonic vibrator 6
The ultrasonic vibration generated in the above can be more efficiently transmitted to the screen frame 3 through the vibrator mounting member 5.

In the above embodiment, two vibrator mounting members 5 are provided on the screen frame 3 of the sieve member 2 and two ultrasonic vibrators 6 are screw-engaged. The number of ultrasonic transducers may be one, three or more, and the transducer mounting member 5 is configured to protrude upward, but is configured to protrude below the screen frame 3. Is also good.

[0012]

As described above, in the ultrasonic screen device of the present invention, the vibrator mounting member is mounted on the screen of the screen member, and the ultrasonic vibrator is mounted on the vibrator mounting member by screw engagement. Since it is configured to protrude to the outside of the housing, there is no obstacle to the wire mesh surface of the screen frame material inside the housing, and the wire mesh surface is greatly opened,
Further, a plurality of ultrasonic vibrators can be attached, and further, by driving the plural ultrasonic vibrators in the same phase, there is an advantage that the screen effect is increased.

[Brief description of the drawings]

FIG. 1 is a side sectional view of an ultrasonic screen device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a sieve member of the ultrasonic sieve device of FIG. 1;

FIG. 3 is a perspective view of a sieve member of an ultrasonic sieve device according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Screen member 3 Screen frame 5 Transducer mounting member 6 Ultrasonic transducer 7 Oscillator

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) H01L 41/08 J (72) Inventor Ryoji Kondo 20 Koyamazuka Oiwa-cho, Toyohashi-shi, Aichi Honda Honda Electronics Co., Ltd. F term (reference) 4D021 AA01 AB02 CA07 CB11 CB18 5D107 AA02 AA03 AA12 BB05 CC04 CC12 CD03

Claims (4)

[Claims] 1. A screen is attached to a screen of a screen member, at least one vibrator mounting member is mounted on an upper or lower part of the screen, and the screen is mounted in a housing for supplying a raw material. An ultrasonic vibrator attached to the vibrator mounting member by screw engagement with the vibrator mounting member so as to protrude outward from the housing to the vibrator mounting portion, and oscillating power is supplied to the ultrasonic vibrator from an oscillator. Sonic screen device. 2. The ultrasonic screen device according to claim 1, wherein said ultrasonic vibrator is a Langevin type vibrator. 3. The ultrasonic screen apparatus according to claim 1, wherein said plurality of ultrasonic transducers are oscillated in phase. 4. The ultrasonic screen device according to claim 1, wherein the ultrasonic vibrator is mounted so as to be detachable from the outside of the housing.