JP3205391B2 - Tool horn for compound vibration - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite vibration tool horn used for ultrasonic plastic welding and the like, and more particularly to a longitudinal vibration applied to a central point of an input surface in a longitudinal direction on a radiation surface. The present invention relates to a composite vibration tool horn capable of extracting a composite vibration composed of a component and a lateral component as a composite vibration.

[0002]

2. Description of the Related Art In general, a tool horn used for ultrasonic plastic welding or the like performs welding by contacting a radiation surface facing an input surface with a material to be welded and supplying vibration energy to the material to be welded. It has a structure.

In this type of tool horn, it is important that the radiating surface oscillates longitudinally with substantially uniform in-phase vibration change. However, the width of the horn is limited with respect to the operating vibration frequency. If more than about _^1/4 wavelength, there is a problem that the displacement of the radiation surface is not uniform.

Therefore, conventionally, for example, Japanese Patent Application Laid-Open No. Sho 60-689.
As shown in 26 JP, to the plate surface between the input surface and the emitting surface of about _{^{1/4-wavelength}} intervals in the lateral direction, the required number of slots (of the order of about _{^{1/4-wavelength}} Length) to make the displacement of the radiation surface uniform.

[0005]

The conventional tool horn can make the displacement uniform on the radiating surface. However, when a longitudinal vibration is applied to the input surface, the vibration in the longitudinal direction is generated from the radiating surface. Since only displacement can be obtained, for example, when welding a plastic film or sheet, there is a problem that carbonization is liable to occur and the welding strength is reduced, and the appearance and appearance are deteriorated, so that it cannot be put to practical use. is there.

The present invention has been made in view of such a situation, and by applying a longitudinal vibration to an input surface, the radiation surface has:
An object of the present invention is to provide a tool horn for composite vibration of an input surface single drive and a radiation surface composite vibration capable of obtaining a composite vibration obtained by combining a vertical component and a horizontal component.

Another object of the present invention is to provide a combined vibration tool horn which can make the combined vibration displacement on the radiating surface substantially uniform.

Another object of the present invention, ho - width dimension of the emission body, even if the relative use oscillation frequency more than _{^{1/4-wavelength,}} the composite vibrating tool e can be made uniform displacement of the radiation surface -To provide

Another object of the present invention is to provide a composite vibration tool horn which can make the displacement of the radiating surface uniform without inserting a generally used narrow slot.

Another object of the present invention is to provide a composite vibration tool horn capable of taking a transverse component of the composite vibration in the thickness direction of the horn body.

Still another object of the present invention is to provide a composite vibrating tool horn which can make composite vibration on a radiation surface different between left and right.

[0012]

The present invention SUMMARY OF] as a means to achieve the object, in longitudinal dimension between the input surface and the emitting surface opposite thereto, length of about _{^{1/4-wavelength}} or more resonant frequencies about
A down, the E - - complex vibration tool e with emissions body - _^1/2 is set to a wavelength below the sail down body, with respect to the longitudinal vibration direction of opening or notch out with an oblique surface At least one of them is provided.

In the present invention, it is preferable that the horn body is formed in a plate shape, and notches are provided at both end portions thereof so that the horn body has a parallelogram shape as a whole.

When a slot is provided in the horn body, it is preferable that the slot be parallel to the oblique side of the horn body having a parallelogram shape.

Further, the horn body is formed in a plate shape, and at the middle part in the width direction, the upper side and the lower side are parallel to the input surface and the radiation surface, and both sides are inclined in the width direction with respect to the longitudinal vibration direction. It is preferable that a quadrilateral window is provided, and notches having inclined surfaces parallel to both sides of the window are provided at both ends in the width direction.

The horn body is formed in a plate shape, and notches having inclined surfaces inclined in the plate thickness direction with respect to the longitudinal vibration direction are provided on both sides in the plate thickness direction. Are preferably parallel to each other.

Further, the horn body is formed in a plate shape, and a triangular window whose bottom is parallel to the input surface and the radiation surface and whose oblique side is inclined in the width direction with respect to the longitudinal vibration direction is formed at an intermediate portion in the width direction. And the radiation surface is divided into two in the width direction at the bottom side position, and further, notches having inclined surfaces parallel to the respective oblique sides of the window are provided at both ends in the width direction.

The horn body is formed in a plate shape, and a slit is formed at an intermediate portion of the horn in the width direction to cut the radiation surface into two in the width direction and cut into the input surface side. It is preferable to provide notches each having an inclined surface whose end on the input surface side is inclined inward in the width direction with respect to the longitudinal vibration direction.

Further, the horn body is formed in a plate shape, and a slit is provided at an intermediate portion of the horn in the width direction with respect to the longitudinal vibration direction, and the lower end portion divides the radiation surface into two in the width direction. In addition, it is preferable that notches having inclined surfaces parallel to the slits are provided at both ends in the width direction.

[0020]

In the tool horn for composite vibration according to the present invention, the horn main body is provided with at least one of an opening or a notch having a surface oblique to the longitudinal vibration direction. For this reason, the vertical vibration applied to the input surface is changed in the vibration direction by the opening or the notch, and can be extracted as a composite vibration in which the vertical component and the horizontal component are synthesized on the radiation surface. .

In the present invention, the horn body is formed in a plate shape, and notches are provided at both end portions thereof to form a parallelogram as a whole, so that the displacement on the radiation surface is made uniform. It is possible to do.

Further, by providing at least one arbitrary number of slots parallel to the oblique side of the parallelogram on the plate surface of the horn main body, the width of the horn main body can be reduced by a factor of ¹ / to the operating vibration frequency. _Even when the wavelength exceeds _four wavelengths, the displacement on the radiation surface can be made uniform.

A parallelogram-shaped window whose upper side and lower side are parallel to the input surface and the radiation surface and whose both sides are inclined in the widthwise direction with respect to the longitudinal vibration direction is provided at an intermediate portion in the widthwise direction of the horn body having a plate shape. By providing notches having inclined surfaces parallel to both sides of the window at both ends in the width direction, it is possible to make the displacement on the radiation surface uniform without providing a slot.

Further, notches having inclined surfaces inclined in the thickness direction with respect to the longitudinal vibration direction are provided on both sides of the plate-shaped horn body in the thickness direction, and the inclined surfaces of both notches are provided.
By making the surfaces parallel to each other, the transverse component of the composite vibration can be taken in the thickness direction of the horn body, and the displacement can be made uniform.

Further, a triangular window whose bottom is parallel to the input surface and the radiation surface and whose oblique side is inclined in the width direction with respect to the longitudinal vibration is provided at the middle portion in the width direction of the horn body having a plate shape.
And the radiating surface is divided into two in the width direction at the bottom side position, and further, at both ends in the width direction, a notch having an inclined surface parallel to each hypotenuse of the window is provided. Can be made mutually opposite directions. Similar effects can be expected when slits are provided instead of the triangular windows.

Further, a slit is provided at a middle portion in the width direction of the horn body in the form of a plate so as to be inclined in the width direction with respect to the longitudinal vibration, and to divide the radiation surface into two in the width direction at the lower end, and both ends in the width direction. By providing a notch having an inclined surface parallel to the slit, the respective transverse components of the composite vibration on the split radiation surface cannot be mutually opposite, but the longitudinal component In addition, it is possible to obtain a composite vibration having a different magnitude of the lateral component.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIGS. 1 and 2 show a composite vibration tool horn according to a first embodiment of the present invention. This tool horn 1 has a longitudinal vibration F of ultrasonic waves in a female screw portion 3a at the center. An input surface 3 to be applied and a radiating surface 4 from which a complex vibration is taken out are provided with a plate-shaped horn main body 2 opposed to the horn main body 2. The dimension L in the vertical direction Z of the vertical vibration F
Set of frequency lambda about lambda / ₄ to about lambda / ₂ or less or more, Mataho - dimension W of the width direction X of the emissions body 2 is set to about lambda / ₄ or more of the frequency lambda, further ho - The dimension T of the main body 2 in the thickness direction Y is set to substantially λ / ₄ or less with respect to the frequency λ.

FIG. 1 shows a central part of the horn body 2 on the plate surface.
As shown in FIG. 2, a slot 5 is provided, and the slot 5 is inclined in the horizontal width direction X by an angle θ with respect to the direction of the longitudinal vibration F, that is, the longitudinal vibration Z. Thus, on the radiation surface 4, a composite vibration obtained by combining the component in the vertical direction Z and the component in the horizontal width direction X is obtained.

Next, the operation of this embodiment will be described.
The female screw portion 3a of the input surface 3 central, for example, the frequency λ, for example, addition of longitudinal vibration F of 20 kHz _Z, Ho - down body 2
Will expand and contract 20,000 times in the vertical direction Z per second.

When the slot 5 is provided in the same direction as the vertical direction Z, the horn body 2 only expands and contracts in the vertical direction Z as is well known.
Is inclined by an angle θ with respect to the vertical direction Z,
The horn main body 2 expands and contracts as shown by the one-dot chain line and the two-dot chain line in FIG.

That is, on the radiation surface 4, the vertical direction Z
And the component in the width direction X are synthesized. For this reason, for example, when welding plastics or sheets, a carbonization phenomenon is less likely to occur, and a good glossy finish can be expected as compared to the case where only conventional vertical displacement is used.

In the first embodiment, the displacement on the radiation surface 4 can be a composite vibration obtained by combining the component in the vertical direction Z and the component in the horizontal width direction X.
Cannot be made uniform over the entire surface of the substrate.

For this reason, when plastic welding is performed using the entire surface of the radiation surface 4, welding can be performed at a location where displacement is large, but not at a location where displacement is small.
1 and 2A, welding can be performed only in the range of W / 6 from the left end in the lateral width direction X. Further, when the welding time is lengthened, good welding is obtained at a portion where the displacement is small, but excessive heat is generated at a portion where the displacement is large, and the temperature rises sharply, which may cause carbonization (combustion due to heat generation). Accordingly, the tool horn 1 of the first embodiment has a problem that the usable range of the radiation surface 4 is limited.

FIGS. 3 and 4 show a second embodiment of the present invention which has been made to solve such a problem. This will be described below. The tool horn 11 according to the present embodiment has an ultrasonic longitudinal vibration F
The horn body 12 is provided with a plate-shaped horn body 12 in which an input surface 13 to which the vibration is applied and a radiating surface 14 from which a composite vibration is taken out face each other. On the other hand, there is provided a slot 15 inclined in the lateral width direction X by an angle θ.

As shown in FIG. 4 (a), notches 16, 1 having inclined surfaces 16a, 17a having the same inclination as the angle θ are provided at both ends of the horn body 12 in the width direction X.
7 are provided, whereby the horn body 12 is
The whole is in the shape of a parallelogram plate. In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

Thus, the horn body 12 is
By making the shape of a parallelogram having the same inclination as the angle θ of 5, as shown by a dashed line and a two-dot chain line in FIG.
The displacement on the radiation surface 14 is a composite vibration obtained by combining the component in the vertical direction Z and the component in the horizontal width direction X, and the displacement can be made substantially uniform over the entire surface of the radiation surface 14.

When the dimension W of the horn body 12 in the width direction X is not more than about λ / _{4 with} respect to the frequency λ of the longitudinal vibration F, the radiation surface 14 can be formed even if the slot 15 is omitted. Needless to say, the displacement can be made uniform, and a plurality of slots 15 may be provided according to the dimension W. However, in this case, it is needless to say that all the angles of the slots 15 need to be the same.

FIGS. 5 and 6 show a third embodiment of the present invention, in which the displacement on the radiation surface can be enlarged. That is, the tool horn 21 according to the present embodiment
The input surface 23 to which the longitudinal vibration F of the ultrasonic wave is applied to the female screw portion 23a at the center, and the radiation surface 24 from which the composite vibration is extracted
Plate-shaped ho bets faces - it includes a down body 22, the e - to the plate surface of the down body 22, about lambda / ₄ or less of the interval for the frequency lambda of the longitudinal vibration F, for example two Slot 25a, 2
5b are provided, and these two slots 25a, 25b
It is inclined in the horizontal width direction X by the same angle θ with respect to the vertical direction Z.

As shown in FIG. 6B, the area of the horn body 22 on the radiation surface 24 side is cut from both sides in the thickness direction Y to form a catenoidal or exponential shape. As a result, the displacement (increase in amplitude) on the radiation surface 24 is increased. In addition,
The other points are the same as those of the first embodiment, and the operation is the same.

Since both sides of the horn body 22 in the plate thickness direction Y are formed in a catenoidal or exponential shape, the displacement of the composite vibration on the radiation surface 24 can be enlarged. The thickness direction Y of the horn body 22
The same effect can be obtained when both side surfaces of are formed in a conical shape or a simple stepped shape.

In the third embodiment, since both side surfaces of the horn body 22 in the plate width direction X are in the same direction as the vertical direction Z, the same as in the first embodiment. However, the displacement on the radiation surface 24 cannot be made uniform. In order to make the displacement on the radiation surface 24 uniform, as in the second embodiment, the horn main body 22 is connected to both slots 25a, 25a.
5b may be formed in a parallelogram plate shape having the same inclination angle as the angle θ.

FIGS. 7 and 8 show a fourth embodiment of the present invention, in which the displacement on the radiation surface can be made uniform and enlarged without providing a slot. That is, the tool horn 31 according to this embodiment is
An input surface 33 to which a longitudinal vibration F of ultrasonic waves is applied to a female screw portion 33a at the center and a radiating surface 34 from which a composite vibration is extracted are provided with a plate-shaped horn main body 32 facing the horn body.
At the center of the main body 32 in the width direction X, a parallelogram having upper and lower sides parallel to the input surface 33 and the radiation surface 34 and having both sides inclined by an angle θ in the width direction X with respect to the vertical direction Z. A large window 35 is provided.

As shown in FIG. 8A, notches 36 and 37 having inclined surfaces 36a and 37a having the same inclination as the angle θ are provided at both ends of the horn body 32 in the width direction X. The notches 36 and 37 and the window 35 are provided closer to the radiation surface 34 than the half in the vertical direction Z of the horn body 32 in order to maximize displacement at the radiation surface 34. The plate thickness dimension R at the end on the radiation surface 34 side is set to be about 1 cm or more so as not to be deformed by pressure. In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

By disposing the parallelogram-shaped window 35 in the horn body 32, the displacement of the radiation surface 34 can be made uniform without providing a slot. Further, since the window 35 and the notches 36 and 37 are provided in the area of L / 2 on the radiation surface 34 side, the displacement in the vertical direction Z and the horizontal direction X on the radiation surface 34 can be enlarged (amplified). it can. Since the dimension from the upper end of the window 35 and the notches 36 and 37 to the input surface 33 is L / 2, the displacement at the radiation surface 34 can be maximized.

In the fourth embodiment, the case where the left and right notches 36 and 37 have a symmetrical shape has been described. However, as shown in FIGS. Even when the sloping surfaces 36a and 37a are not symmetrical, the same effect can be expected if the inclined surfaces 36a and 37a have the same inclination as the oblique side of the window 35. This has been confirmed by experiments by the present inventors, and it has been found that the flatness of the displacement on the radiation surface 34 is rather improved as compared with those shown in FIGS. 7 and 8. This may be because the end on the radiation surface 34 side is symmetrical.

FIGS. 10 and 11 show a fifth embodiment of the present invention, in which the transverse component of the composite vibration can be taken in the thickness direction of the horn body.
That is, the tool horn 41 according to this embodiment has a plate-like shape in which the input surface 43 where the ultrasonic longitudinal vibration F is applied to the female screw portion 43a at the center and the radiation surface 44 where the composite vibration is extracted are opposed to each other. The horn body 42 is provided.
For example, one slot 45 is provided on the second plate surface.

On both sides of the horn body 42 in the plate thickness direction Y, as shown in FIG. 11A, inclined surfaces 46a inclined in the plate thickness direction Y by an angle θ with respect to the vertical direction Z. , 47
The notches 46, 47 having a are provided in the longitudinal direction Z of the horn body 42 more than half in order to maximize the displacement at the radiation surface 44. It is set in the area closer to the radiation surface 44 side. For other points, the first
The configuration is the same as that of the embodiment, and the operation is the same.

The inclined surfaces 4 of the notches 46, 47
By tilting 6a and 47a in the thickness direction Y of the horn body 42, the lateral component of the composite vibration on the radiation surface 44 is
It can be taken not in the width direction X but in the plate thickness direction Y.

In the fifth embodiment, the case where one slot 45 is provided on the plate surface of the horn body 42 has been described. However, similar to the conventional longitudinal vibration horn, the horn body 42 is provided. It is needless to say that the present invention can be similarly applied to a case where there is no slot 45 and a case where a plurality of slots 45 are provided, according to the dimension W in the lateral width direction X. Also, if the slot 45 is inclined in the lateral width direction X, the lateral component of the composite vibration can naturally be taken in the lateral width direction X.

FIGS. 12 and 13 show a sixth embodiment of the present invention, in which a plurality of types of complex vibrations can be obtained on the radiation surface. That is, the tool horn 51 according to the present embodiment has a plate-like shape in which the input surface 53 to which the ultrasonic longitudinal vibration F is applied to the female screw portion 53a at the center and the radiation surface 54 from which the composite vibration is extracted are opposed to each other. Horn body 52
In the center of the horn body 52 in the width direction X, as shown in FIG.
Further, a triangular window 55 is provided which is parallel to the radiation surface 54 and whose oblique side is inclined by an angle θ in the horizontal width direction X with respect to the vertical direction Z. The radiating surface 54 is connected to the window 55
At the bottom side of the right radiating surface 54a and the left radiating surface 54b
And is divided into two.

As shown in FIG. 13 (a), notches 56, 5 having inclined surfaces 56a, 57a parallel to respective oblique sides of the window 55 are provided at both ends in the width direction X of the horn body 52.
7 are provided respectively, and these notches 56, 5
The window 7 and the window 55 are each set in a region closer to the radiation surface 54 than half in the longitudinal direction Z of the horn main body 52 in order to maximize the displacement on the radiation surface 54. In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

Thus, the radiation surface 54 is changed to the right radiation surface 54a.
And a left radiation surface 54b, and each radiation surface 54a,
Slope surfaces 56a, 5 of notches 56, 57 corresponding to 54b
Since the inclination of 7a is set to be opposite to each other, the lateral components of the composite vibration on each of the radiation surfaces 54a and 54b can be set to be opposite to each other.

FIG. 14 shows the state of the combined vibration on each of the radiation surfaces 54a and 54b. In the figure, the graph _DT shows the vertical displacement and the graph _DY shows the horizontal displacement. Here, the lateral component of the composite vibration on each of the radiation surfaces 54a and 54b,
That is, since the directions of the lateral displacement _DY are opposite to each other, the resonance condition cannot be obtained unless the radiation surface 54 is divided into two.

FIGS. 15 and 16 show a seventh embodiment of the present invention.
Instead of the one window 55, a slit 65 is used. That is, the tool horn 61 according to the present embodiment.
Are an input surface 63 on which a longitudinal vibration F of an ultrasonic wave is applied to a female screw portion 63a at a central portion, and a radiation surface 64 from which a composite vibration is extracted.
The horn main body 62 has a plate-shaped horn main body 62 facing the horn main body.
As shown in (a), a slit 65 for dividing the radiation surface 64 into a right radiation surface 64a and a left radiation surface 64b is provided,
The upper end of the slit 65 is cut from the radiation surface 64 to a position of L / ₂ .

As shown in FIG. 16 (a), inclined surfaces 66a, 67 which are inclined by an angle θ in the horizontal width direction X with respect to the vertical direction Z are provided at both ends of the horn body 62 in the horizontal width direction X.
The notches 66, 67 having a are provided in the longitudinal direction Z of the horn body 62 in order to maximize the displacement on the radiation surface 64.
Each area is set closer to the radiation surface 64 side than half. In other respects, the configuration is the same as that of the sixth embodiment, and the operation is the same.

Thus, even if this tool horn 61 is used, the same effect as that of the tool horn 51 in the sixth embodiment can be expected.

FIGS. 17 and 18 show an eighth embodiment of the present invention, in which the tool horn 3 of the fourth embodiment is used.
A slit 75 is provided in place of the single window 35, and the radiation surface 74 is divided into two in the lateral width direction X by the slit 75. That is, the tool horn 71 according to the present embodiment has a plate-like shape in which the input surface 73 to which the ultrasonic longitudinal vibration F is applied to the female screw portion 73a at the center and the radiation surface 74 from which the composite vibration is extracted are opposed to each other. As shown in FIG. 18A, the horn body 72 is inclined at an angle θ in the width direction X with respect to the vertical direction Z, as shown in FIG. Slit 75 is provided,
The lower end of the slit 75 is bent so as to be perpendicular to the radiation surface 74, and divides the radiation surface 74 into a right radiation surface 74a and a left radiation surface 74b.

As shown in FIG. 18A, notches 76, 77 having inclined surfaces 76a, 77a having the same inclination as the angle θ are provided at both ends in the width direction X of the horn main body 72, respectively. These notches 76 and 77 and the slit 75 are closer to the radiation surface 74 side than half in the vertical direction Z of the horn body 72 in order to maximize displacement on the radiation surface 74. Are set in the respective areas. In other respects, the configuration is the same as that of the fourth embodiment, and the operation is the same.

However, in this tool horn 71, the inclinations of the inclined surfaces 76a and 77a of the notches 76 and 77 are in the same direction, so that the tool horn 71 is different from the sixth and seventh embodiments. The direction of the lateral component of the composite vibration on each of the radiation surfaces 74a and 74b is not reversed, and the directions are the same, but different composite vibrations are obtained. That is, on the right radiation surface 74a, a composite vibration having a large horizontal component and a small vertical component is formed, and the left radiation surface 7a
On the other hand, in the case of 4b, the composite vibration has a large vertical component and a small horizontal component.

Although not specifically described in the above embodiments, the slots 5, 15, 25a, 25b, 4
5, windows 35, 55, slits 65, 75 and notch 1
6,17,36,37,46,47,56,57,6
6, 67, 76, 77 size or position or angle θ
By adjusting the value of, the desired magnitude of vertical and horizontal vibration can be selected, and these may be appropriately determined according to the purpose of use.

In each of the above embodiments, the case where the horn main bodies 2, 12, 32, 42, 52, 62, and 72 are all plate-shaped has been described. It is not necessary to have a shape, for example, a cylindrical shape,
The same applies to horn bodies of other shapes,
Similar effects can be expected.

[0062]

As described above, according to the present invention, since the horn body is provided with at least one of the opening and the notch having a surface oblique to the longitudinal vibration direction, The vibration direction of the longitudinal vibration applied to the plane is changed by the opening or the notch, and can be extracted from the radiation plane as a composite vibration in which the longitudinal component and the lateral component are combined. For this reason, for example, when a plastic film or sheet is welded, a carbonization phenomenon is less likely to occur as compared with the case where only a conventional vertical displacement is used, and sufficient welding strength can be obtained and gloss can be obtained. A certain good finish can be obtained.

In the present invention, the horn body is formed in a plate shape, and notches are provided on both sides thereof to form a parallelogram as a whole. And can be made uniform.
Therefore, the entire surface of the radiation surface can be effectively used as a processing surface.

Further, by providing at least one arbitrary number of slots parallel to the oblique side of the parallelogram on the plate surface of the horn body, the width of the horn body can be reduced with respect to the operating vibration frequency.
^Even when the wavelength exceeds _1/4 wavelength, the displacement on the radiation surface can be made uniform.

Further, at the intermediate portion of the plate-shaped horn body,
A parallelogram-shaped window whose upper side and lower side are parallel to the input surface and the radiation surface and both sides are inclined in the width direction with respect to the longitudinal vibration direction, and inclined surfaces parallel to both sides of the window at both ends in the width direction. By providing notches each having
The displacement on the radiation surface can be made uniform without providing a slot.

Further, notches having inclined surfaces inclined in the plate thickness direction with respect to the longitudinal vibration direction are provided on both sides of the plate-shaped horn body in the plate thickness direction, and the inclined surfaces of both notches are provided. By making the surfaces parallel to each other, the transverse component of the composite vibration can be taken in the thickness direction of the horn body, and the displacement can be made uniform.

Further, a triangular window whose bottom is parallel to the input surface and the radiation surface and whose hypotenuse is inclined in the width direction with respect to the longitudinal vibration is provided at an intermediate portion in the width direction of the horn body having a plate shape.
And the radiating surface is divided into two in the width direction at the bottom side position, and further, at both ends in the width direction, a notch having an inclined surface parallel to each hypotenuse of the window is provided. Each of the horizontal components of the composite vibration can be made to have opposite directions, and a plurality of types of composite vibration can be simultaneously obtained by adding the vertical vibration component. The same effect can be obtained by providing a slit instead of the triangular window and dividing the radiation surface into two by this slit.

Further, a slit is provided at the middle of the horn body in the width direction in the width direction with respect to the longitudinal vibration direction, and a slit is formed at the lower end to divide the radiation surface into two in the width direction. By providing a notch having an inclined surface parallel to the slit, the respective transverse components of the composite vibration on the radiating surface that is divided into two cannot be made to have mutually opposite directions. The ratio of the vertical component and the horizontal component in the vibration can be different from each other.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a horn for composite vibration according to a first embodiment of the present invention.

2 (a) is a front view of the combined vibration tool horn of FIG. 1, FIG. 2 (b) is a similar side view, and FIG. 2 (c) is a similar plan view.

FIG. 3 is a diagram showing a tool for composite vibration according to a second embodiment of the present invention;
FIG.

4A is a front view of the combined vibration tool horn of FIG. 3, FIG. 4B is a similar side view, and FIG. 4C is a similar plan view.

FIG. 5 shows a composite vibration tool tool according to a third embodiment of the present invention.
FIG.

6 (a) is a front view of the combined vibration tool horn of FIG. 5, (b) is a similar side view, and (c) is a similar plan view.

FIG. 7 shows a composite vibration tool tool according to a fourth embodiment of the present invention.
FIG.

8A is a front view of the combined vibration tool horn of FIG. 7, FIG. 8B is a similar side view, and FIG. 8C is a similar plan view.

9 (a) is a perspective view showing a modified example of the combined vibration tool horn of FIG. 7, and FIG. 9 (b) is a similar front view.

FIG. 10 is a perspective view showing a composite vibration tool horn according to a fifth embodiment of the present invention.

11 (a) is a front view of the combined vibration tool horn of FIG. 10, (b) is a similar right side view, and (c) is a similar bottom view.

FIG. 12 is a perspective view showing a combined vibration tool horn according to a sixth embodiment of the present invention.

13 (a) is a front view of the composite vibration tool horn of FIG. 12, (b) is a similar side view, and (c) is a similar bottom view.

FIG. 14 is an explanatory view showing a state of a composite vibration on a radiation surface of the composite vibration tool horn of FIG.

FIG. 15 is a perspective view showing a combined vibration tool horn according to a sixth embodiment of the present invention.

16 (a) is a front view of the composite vibration tool horn of FIG. 15, (b) is a similar side view, and (c) is a similar bottom view.

FIG. 17 is a perspective view showing a combined vibration tool horn according to a seventh embodiment.

18 (a) is a front view of the combined vibration tool horn of FIG. 17, FIG. 18 (b) is a similar side view, and FIG. 18 (c) is a similar bottom view.

[Explanation of symbols]

1, 11, 21, 31, 41, 51, 61, 71 Tool horn 2, 12, 22, 32, 42, 52, 62, 72 Ho
Body 3,13,23,33,43,53,63,73 input surface 4,14,24,34,44,54,64,74 radiation surface 5,15,25a, 25b, 45 slot 16,17, 36, 37, 46, 47, 56, 57, 6
6, 67, 76, 77 Notches 16a, 17a, 36a, 37a, 46a, 47a, 5
6a, 57a, 66a, 67a, 76a, 77a Inclined surface 35, 55 Window 54a, 64a, 74a Right radiating surface 54b, 64b, 74b Left radiating surface 65, 75 Slit F Vertical vibration λ Frequency Z Vertical direction X Width direction Y plate Thickness θ angle

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B29C 65/08 B06B 1/00-3/04

Claims (8)

(57) [Claims] 1. A vertical dimension between an input surface and a radiation surface facing the input surface is approximately 1/4 or more of a longitudinal resonance frequency.
A tool horn for compound vibration having a horn main body set at a wavelength equal to or less than / 2 wavelength, wherein the horn main body is provided with at least one of an opening or a notch having a surface oblique to a longitudinal vibration direction. A composite vibration tool horn characterized by the following. 2. The horn body is formed in a plate shape,
2. The tool horn for composite vibration according to claim 1, wherein notches are provided at both side ends thereof, and the notch is formed as a parallelogram as a whole. 3. The horn for composite vibration according to claim 2, wherein an arbitrary number of slots are provided in the plate surface of the horn body in parallel with the slope of the parallelogram. 4. The horn body is formed in a plate shape,
At the middle part in the width direction, a parallelogram-shaped window is provided in which the upper side and the lower side are parallel to the input surface and the radiation surface, and both sides are inclined in the width direction with respect to the longitudinal vibration direction. 2. The combined vibration tool horn according to claim 1, wherein notches having inclined surfaces parallel to both sides are provided. 5. The horn body is formed in a plate shape,
On both sides in the plate thickness direction, notches having inclined surfaces inclined in the plate thickness direction with respect to the longitudinal vibration direction are provided, and the inclined surfaces of both notches are parallel to each other. The composite tool horn according to claim 1. 6. A horn body formed in a plate shape,
At the middle of the width direction, a triangular window whose base is parallel to the input surface and the radiation surface and whose hypotenuse is inclined in the width direction relative to the longitudinal vibration direction is provided, and the radiation surface is divided into two in the width direction at the position of the base. The tool horn for a composite vibration according to claim 1, wherein notches having inclined surfaces parallel to the respective inclined sides of the window are provided at both ends in the width direction. 7. The horn body is formed in a plate shape,
At the middle part in the width direction, a slit is formed that divides the radiation surface into two in the width direction and cuts into the input surface side, and at both ends in the width direction, the end on the input surface side is inside the width direction with respect to the longitudinal vibration direction. 2. The combined vibration tool horn according to claim 1, wherein notches each having an inclined surface are provided. 8. The horn body is formed in a plate shape,
At the middle of the width direction, a slit is provided which is inclined in the width direction with respect to the vertical vibration direction and divides the radiation surface into two in the width direction at the lower end, and has a slope parallel to the slit at both ends in the width direction. The tool horn for a composite vibration according to claim 1, wherein each of the notches is provided.