close

Вход

Забыли?

вход по аккаунту

?

JPH09225400

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPH09225400
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
ultrasonic radiation apparatus suitable for use as, for example, a bubble canceler.
[0002]
2. Description of the Related Art In a beverage maker handling beer, fruit juice, milk and the like,
a foam eliminating device quickly eliminates the foam generated in the head space of the
container when filling and plugging these beverages in the container. It is used to Specifically, the
foam is generated when the container is filled with a beverage, and the elimination step is
incorporated from the viewpoint of the inconvenience of overflowing the container from the
mouth and from the viewpoint of hygiene.
[0003]
A conventional example of such a bubble eliminating device is shown in FIG. This device is
disclosed in JP-A-6-191595.
[0004]
03-05-2019
1
As shown in the figure, the bubble eliminating apparatus is constituted by an oscillator 101, a
horn 102 and a diaphragm 103, and the operation of the oscillator 101 excites the diaphragm
103 at a high frequency. Specifically, flexural vibration is performed as indicated by a symbol W
in FIG.
[0005]
When the vibrating plate 103 vibrates, the bubbles B in the container 107 transported by the
conveyor 105 under the diaphragm 103 are sequentially erased from the upper side by
ultrasonic waves.
[0006]
Next, a second prior art foam eliminator will be described based on FIG.
The foam eliminating device is also disclosed in Japanese Patent Application Laid-Open No. 6191595.
[0007]
As shown in the figure, in this bubble removing device, a reflecting plate 109 for reflecting the
sound wave emitted from the vibrating plate 103 is provided. The reflection plate 109 is formed
in a curved shape, and reflects the sound wave emitted from the diaphragm 103 toward one
place, that is, the bubble B so as to concentrate. In the figure, the traveling directions of the
reflected waves are indicated by axes 110a to 110c.
[0008]
By concentrating the sound waves in this manner, the utilization efficiency of vibrational energy
is enhanced, and the disappearance of the bubble B is accelerated.
[0009]
In the bubble removing apparatus shown in FIG. 7, there is a concern that the diaphragm 103
and the screw 112 fastening the same may be damaged due to metal fatigue and enter the
03-05-2019
2
container 107 when it is operated for a long time. However, in the case of the foam eliminator
shown in FIG. 9, there is no such risk because the apparatus itself is not located directly above
the container 107.
[0010]
Although the operation can be advanced efficiently to some extent by the above-described bubble
removing apparatus, it is desirable to improve the working efficiency recently, and on the other
hand, it is desired to save energy. Etc. are required.
[0011]
The present invention has been made in view of these needs, and it is a main object of the
present invention to provide a bubble eliminator, that is, an ultrasonic radiation device which
achieves this.
[0012]
Another object of the present invention is to provide an ultrasonic radiation apparatus which can
exhibit not only the above effects but also other effects.
[0013]
SUMMARY OF THE INVENTION In order to achieve the above-mentioned main object, the
present invention adopts the following constitution.
First, a first ultrasonic radiation apparatus according to the present invention comprises a
diaphragm, ultrasonic excitation means for exciting the diaphragm, and direction changing
means for changing the direction of sound waves in all directions of the diaphragm. ing.
Further, in a second ultrasonic radiation apparatus according to the present invention, a
diaphragm, ultrasonic excitation means for exciting the diaphragm, and at least a part of sound
waves emitted from the diaphragm in the direction of the ultrasonic excitation means And
direction changing means for changing the direction of the light.
[0014]
03-05-2019
3
In the first and second ultrasonic radiation devices, the vibrational energy emitted from the back
side of the diaphragm, that is, the side on which the ultrasonic excitation means is located, also
effectively acts on the radiation object such as a bubble. Combined with the vibrational energy
emitted from the front side of the unit, the total energy works without waste.
[0015]
Embodiments of the present invention will now be described with reference to the accompanying
drawings.
[0016]
First, an ultrasonic radiation apparatus as a first embodiment of the present invention will be
described based on FIGS. 1 and 2. FIG.
In the case of this example, the ultrasonic radiation device 1 is used as a bubble elimination
device for eliminating bubbles B overflowing in the head space of the container 3 filled with beer
or the like.
[0017]
As shown, the ultrasonic radiation apparatus 1 has a long rectangular plate-like diaphragm 7
extending in the direction in which each container 3 is to be transported by the conveyor 5.
A metal such as duralmin is selected as the material of the diaphragm 7.
[0018]
The conveyor 5 transports the container 3 in which the bubbles B are filled in the head space so
as to be used for the defoaming operation by the ultrasonic radiation device 1, and is hung on the
drive roller 11 and the driven roller 12 and the respective rollers. It has a belt 14 which has been
rotated, and drive means (not shown) for driving the drive roller 11 so as to drive the belt 14.
03-05-2019
4
The containers 3 are sequentially loaded on the belt 14 and passed below the ultrasonic
radiation device 1 by being transported.
[0019]
In the ultrasonic radiation apparatus 1, an ultrasonic vibration generator 17 (see FIG. 2) is
coupled to the diaphragm 7.
The ultrasonic vibration generating unit 17 is for exciting the diaphragm 7 and, as shown in FIG.
2, a transducer 19 of Langevin type, and between the transducer 19 and the diaphragm 7. And a
horn 20 interposed.
The diaphragm 7 is fastened by a bolt 22 to the tip of the horn 20 at its main surface, that is, at
the center of the vibration surface.
[0020]
As shown in FIG. 2, an oscillator 24 is connected to the vibrator 19 and driven by a high
frequency voltage applied from the oscillator 24 to emit ultrasonic vibration. The oscillator 24
and the ultrasonic vibration generator 17 are collectively referred to as ultrasonic excitation
means. As indicated by an arrow U in FIG. 2, the vibration generated by the vibrator 19 is a
longitudinal vibration. The horn 20 serves to mechanically amplify the vibration from the
vibrator 19. However, the horn 20 has a conical portion 20a and a straight portion 20b, and the
amplification of vibration is performed by the conical portion 20a.
[0021]
A case 26 surrounding the conical portion 20a of the horn 20 and the vibrator 19 is provided,
and the case 26 has a case body 26a and a lid 26c fastened to the case body 26a by a bolt 26b. .
A flange 20d is formed at the nodal point in the conical portion 20a of the horn 20, and the horn
20 is attached to the lid 26c of the case 26 via the packing 28 at the flange 20d.
03-05-2019
5
[0022]
In the ultrasonic radiation device 1 configured as described above, the diaphragm 7 vibrates in
the longitudinal direction and the width direction based on the longitudinal vibration transmitted
through the horn 20. That is, it becomes a stripe-like vibration mode planarly. Due to this
vibration, ultrasonic waves are emitted from both sides of the diaphragm 7.
[0023]
The ultrasonic radiation apparatus 1 includes direction changing means for changing the
direction of the sound wave emitted from the diaphragm 7. The direction changing means is
formed in the shape of a rectangular plate and is provided with first reflecting members 31 and
32 respectively corresponding to the front side and the back side of the diaphragm 7, and in the
same manner as the first plate. It consists of the 2nd reflecting members 33 and 34 provided
corresponding to reflecting members 31 and 32, respectively. The total length and width
dimensions of these four reflecting members are set to be substantially equal to each other, and
are formed slightly longer than the diaphragm 7. The adjacent ones are connected by welding or
the like, and are integrally connected via the side cover 36 at both longitudinal ends. However,
the two second reflection members 33 and 34 are originally integrated, and the boundary
regarding the reflection function is indicated by a dashed dotted line 38 in FIG.
[0024]
The first reflecting members 31 and 32, the second reflecting members 33 and 34, and the side
cover 36 are in non-contact with the diaphragm 7 and the horn 20. Therefore, an insertion hole
32a through which the horn 20 is inserted with a gap is formed in the first reflection member 32
in which the horn 20 penetrates.
[0025]
The material of each of the reflecting members 31, 32, 33, and 34 is selected so as to effectively
reflect ultrasonic waves without absorption, and in the case of the present embodiment, duralmin
or the like is used as in the diaphragm 7. There is. An appropriate material is selected for the side
03-05-2019
6
cover 36.
[0026]
As shown in FIG. 2, the first reflecting members 31 and 32 are positioned at an angle of 45 °
with respect to the diaphragm 7. The other second reflection member 34 is made parallel to the
first reflection member 32 so that one second reflection member 33 makes an angle of 90 °
with the first reflection member 31. .
[0027]
In such a configuration, the sound waves emitted from the front side of the diaphragm 7, that is,
from the upper side as indicated by the arrow a1 (see FIG. 2) are the first reflecting member 31
and the second reflecting member as indicated by the arrows a2 and a3. The light is reflected by
the reflecting member 33, and the direction is changed, and it is directed downward.
[0028]
Further, the sound wave emitted from the back side of the diaphragm 7 on which the ultrasonic
wave excitation unit including the ultrasonic vibration generator 17 is disposed, that is, from the
lower side as indicated by the arrow b1 is the first reflection member 32 and the second
reflection member 32. The light is reflected by the reflecting member 34 as shown by arrows b2
and b3 to be changed in direction and also directed downward.
[0029]
The above-mentioned container 3 is carried by the conveyer 5 to the lower side where the
ultrasonic waves from the front and back sides of the diaphragm 7 are changed in direction.
Therefore, the bubble B generated and overflowing in the head space of the container 3 is
eliminated very quickly.
[0030]
03-05-2019
7
As described above, in the ultrasonic radiation apparatus 1, the direction changing means is
provided to change the direction of the sound wave in all directions of the diaphragm 7.
Therefore, the vibrational energy emitted from the back side of the diaphragm 7, that is, the side
on which the ultrasonic wave excitation means is located, also acts effectively on the bubble B,
and the total energy together with the vibrational energy emitted from the front side of the
diaphragm 7. Is used without waste.
[0031]
As a result, the working efficiency for the elimination of the bubble B is enhanced, and the power
consumption is kept low without wasting energy, thereby achieving cost reduction.
[0032]
In the ultrasonic radiation apparatus, since the ultrasonic vibration generator 17 including the
diaphragm 7 is located not on the upper side of the container 3 but on the side, temporarily the
diaphragm 7 and a bolt 22 for fastening the diaphragm 7 are provided. Even if the chipped part
is broken due to metal fatigue or the like and the chipped part falls, there is no risk of entering
into the container 3.
In addition, in the present apparatus, the partition plate 41 is provided in the vicinity of the lower
edge portion of the first reflection member 32 in preparation for a possible falling object, which
is safe.
[0033]
Further, in the present embodiment, the above-mentioned respective reflecting members are
used as direction changing means for changing the direction of the sound wave emitted from the
diaphragm 7, but the plate-like member is simply provided in this manner to reflect the sound
wave. The configuration for changing the direction is extremely simple and inexpensive.
[0034]
As in the first embodiment described above, direction changing means for changing the direction
03-05-2019
8
of sound waves in all directions of the diaphragm 7 is provided, so that the same effect as that of
the first embodiment can be obtained. An essential part of an ultrasonic radiation apparatus as a
second embodiment which can be exhibited is shown in FIG.
However, the ultrasonic radiation apparatus according to the second embodiment is configured
in the same manner as the ultrasonic radiation apparatus according to the first embodiment
except for the parts described below, and the description of the configuration as the whole
apparatus is the same. Therefore I omit it.
[0035]
In the following description and FIG. 3, the same or corresponding components as or to the
components of the ultrasonic radiation apparatus of the first embodiment are indicated by the
same reference numerals.
[0036]
The same applies to the description of the third embodiment and later described later.
[0037]
As shown in FIG. 3, in the ultrasonic radiation apparatus of the second embodiment, the first
reflecting members 31 and 32 provided above and below the diaphragm 7 are separated from
the diaphragm 7 to a large extent to some extent. .
[0038]
The second reflecting member 33 corresponding to the upper first reflecting member 31 is also
spaced apart from the first reflecting member 31.
The second reflecting member 34 corresponding to the first reflecting member 32 located below
the diaphragm 7 is separated from the first reflecting member 32 so as to form an angle of 90
°. It is arranged.
[0039]
As shown in the figure, the ultrasonic radiation apparatus of this configuration uses an acoustic
03-05-2019
9
radiation target 45 located on the side of the diaphragm 7.
[0040]
That is, sound waves emitted from the front side of the diaphragm 7 as indicated by the arrow a1
are emitted downward through the first reflecting member 31 and the second reflecting member
33 as indicated by the arrows a2 and a3. Be done.
[0041]
On the other hand, the sound wave emitted from the back side of the diaphragm 7 as shown by
the arrow b1 is reflected by the first reflecting member 32 and the second reflecting member 34
to change the direction as shown by the arrows b2 and b4. Head upwards.
[0042]
Therefore, all vibrational energy emitted from the front and back sides of the diaphragm 7
reaches the radiation object 45 on the side of the diaphragm 7.
[0043]
FIG. 4 shows the main part of an ultrasonic radiation apparatus as a third embodiment of the
present invention.
[0044]
As shown in the figure, in the ultrasonic radiation apparatus, the first reflection member 32 is
provided only on the back side, ie, the lower side of the diaphragm 7, and in the vicinity of the
first reflection member 32 and 90 °. The second reflecting member 34 is disposed at an angle.
A third reflecting member 48 is disposed above the second reflecting member 34 in a spaced
apart manner.
The third reflecting member 48 makes an angle of 90 ° with the second reflecting member 34.
[0045]
03-05-2019
10
For the ultrasonic radiation device of this configuration, a sonic radiation object 45 is brought
above the diaphragm 7.
[0046]
That is, sound waves emitted from the front side of the diaphragm 7 as shown by the arrow a1
reach the radiation object 45 as they are, and sound waves emitted from the back side of the
diaphragm 7 as shown by the arrow b1 are arrows b2, b4 and As shown by b 5, the light is
reflected sequentially by the first reflecting member 32, the second reflecting member 34 and
the third reflecting member 48 to reach the radiation target 45.
[0047]
As is apparent from this, in the ultrasonic radiation apparatus of the third embodiment, the back
side of the diaphragm 7, ie, the horn 20, is different from the ultrasonic radiation apparatuses of
the first and second embodiments described above. Only the sound waves emitted in the
direction in which the ultrasonic excitation means including S.sub.2 are arranged are changed,
and the sound waves emitted from the front side of the diaphragm 7, that is, the upper side, are
exposed to the radiation object 45 without being changed.
[0048]
Also in this configuration, as in the first and second embodiments, the total energy emitted from
both the front and back sides of the diaphragm 7 is effectively utilized.
[0049]
FIG. 5 shows the main part of an ultrasonic radiation apparatus as a fourth embodiment of the
present invention.
In this ultrasonic radiation apparatus as well, as in the fourth embodiment described above, only
the sound waves from the back side of the diaphragm 7 are changed, and the sound waves from
the front side are emitted as they are without changing the direction.
[0050]
03-05-2019
11
As shown in FIG. 5, the second reflecting member 34 is provided at an obtuse angle, for example
80 °, with respect to the first reflecting member 32.
Therefore, as indicated by the arrow b6, the reflected sound from the second reflection member
34 proceeds obliquely upward and reaches the radiation object 45 located above the diaphragm
7.
[0051]
FIG. 6 shows the main part of an ultrasonic radiation apparatus according to a fifth embodiment
of the present invention.
This device also redirects only the sound waves from one side of the diaphragm 7, in this
example the back side.
[0052]
As shown, only the lower first reflecting member 32 which forms an angle of 45 ° with the
diaphragm 7 is provided.
[0053]
In the first to fourth embodiments described above, a plurality of reflecting plates are provided
correspondingly, whereby the sound waves emitted from the diaphragm 7 are sequentially
reflected in different directions.
In these configurations, it is possible to freely set the reflection direction of the sound wave, and
hence it is possible to cope with any position of the sound emission object 45 (in the first
embodiment, the bubble B is the emission object). .
[0054]
In the configuration shown in FIG. 6, the sound wave emitted from the front side of the
diaphragm 7 is directed upward as shown by the arrow a1 and the sound wave emitted from the
03-05-2019
12
back side of the diaphragm 7 as shown by the arrow b1 is transmitted to the first reflecting
member 32. It is reflected and directed to the side as shown by the arrow b2.
[0055]
That is, it is effective in the case where the sound emission targets 45 are separately present
above and to the side of the diaphragm 7.
[0056]
In each of the embodiments described above, the reflecting member provided may of course
reflect the sound wave on its entire surface, or only a part of the surface may be reflected if
necessary. May be
[0057]
In each embodiment, the angle between the diaphragm 7 and each of the reflection members, or
the angle between the reflection members may be changed as appropriate. It is possible to widen
or narrow the range.
[0058]
In each of the above-described embodiments, each of the provided reflecting members is a flat
plate, but by applying the curved reflecting member as shown in FIG. 9, concentrated radiation of
sound waves is achieved, which is more effective. is there.
[0059]
Furthermore, although the object to which the sound wave is radiated is the bubble B in each of
the above-described embodiments, the present invention can be applied to any object if the effect
is enhanced by the radiation of ultrasonic waves.
[0060]
Furthermore, the present invention is not limited to the configurations of the above-described
embodiments, and various configurations can be obtained by combining the configurations of the
embodiments at least partially with each other as appropriate or applying them together. It can
be realized.
[0061]
03-05-2019
13
As described above, in the ultrasonic radiation apparatus according to the present invention,
vibrational energy emitted from the back side of the diaphragm, that is, the side on which the
ultrasonic excitation means is located is also effective for radiation objects such as bubbles. In
addition to the vibrational energy emitted from the front side of the diaphragm, the total energy
is used without waste.
Therefore, the working efficiency such as the elimination of the bubbles is enhanced, and the
power consumption is suppressed to achieve the cost reduction.
[0062]
Brief description of the drawings
[0063]
FIG. 1 FIG. 1 is a perspective view, partly in cross section, showing an ultrasonic radiation
apparatus as a first embodiment of the present invention and a conveyor for carrying an acoustic
radiation target.
[0064]
2 is a longitudinal sectional view of the ultrasonic radiation device and the conveyor shown in
FIG.
[0065]
FIG. 3 FIG. 3 is a longitudinal sectional view of the main part of an ultrasonic radiation apparatus
as a second embodiment of the present invention.
[0066]
FIG. 4 FIG. 4 is a longitudinal sectional view of the main part of an ultrasonic radiation apparatus
as a third embodiment of the present invention.
[0067]
FIG. 5 FIG. 5 is a longitudinal sectional view of the main part of an ultrasonic radiation apparatus
according to a fourth embodiment of the present invention.
03-05-2019
14
[0068]
FIG. 6 FIG. 6 is a longitudinal sectional view of the main part of an ultrasonic radiation apparatus
as a fifth embodiment of the present invention.
[0069]
FIG. 7 FIG. 7 is a front view of a foam eliminator according to a first prior art.
[0070]
8 is a view showing a vibration mode of the diaphragm provided in the foam removing device
shown in FIG.
[0071]
FIG. 9 is a side view of a second prior art foam eliminator.
[0072]
Explanation of sign
[0073]
DESCRIPTION OF SYMBOLS 1 ultrasonic radiation apparatus 3 container 5 conveyor 7
diaphragm 17 ultrasonic vibration generation part 19 vibrator 20 horn 24 oscillator 31, 32 1st
reflective member 33, 34 2nd reflective member 45 sound-wave radiation object 48 3rd
reflection Element
03-05-2019
15
Документ
Категория
Без категории
Просмотров
0
Размер файла
24 Кб
Теги
jph09225400
1/--страниц
Пожаловаться на содержимое документа