CN110831666A - Ultrasonic cosmetic device using non-conductive substance and method for manufacturing the same - Google Patents
Ultrasonic cosmetic device using non-conductive substance and method for manufacturing the same Download PDFInfo
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- CN110831666A CN110831666A CN201880044224.9A CN201880044224A CN110831666A CN 110831666 A CN110831666 A CN 110831666A CN 201880044224 A CN201880044224 A CN 201880044224A CN 110831666 A CN110831666 A CN 110831666A
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
- A45D44/22—Face shaping devices, e.g. chin straps; Wrinkle removers, e.g. stretching the skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N7/02—Localised ultrasound hyperthermia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N2007/0004—Applications of ultrasound therapy
- A61N2007/0008—Destruction of fat cells
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N2007/0004—Applications of ultrasound therapy
- A61N2007/0034—Skin treatment
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Abstract
The present invention relates to an ultrasonic cosmetic device using a non-conductive substance and a method for manufacturing the same, the cosmetic device may include: a main body section having a hand-held structure and carrying an ultrasonic oscillation circuit; a piezoelectric ceramic disposed inside the main body portion so as to be supplied with power from the ultrasonic oscillation circuit to generate ultrasonic vibration; and an ultrasonic transmission part attached to the piezoelectric ceramic and supported by the main body part, the ultrasonic transmission part being molded from a mixed raw material in a powder form including a non-conductive molding raw material.
Description
Technical Field
The present invention relates to an ultrasonic cosmetic device using a non-conductive substance and a method for manufacturing the same.
Background
Generally, an ultrasonic cosmetic apparatus uses an ultrasonic probe in which a piezoelectric ceramic is attached to a metal plate as a skin management apparatus.
Piezoelectric ceramics are materials that convert impact energy into electrical energy, or electrical energy into vibrational energy. For example, the piezoelectric ceramic generates more than ten million vibrations (e.g., physical force) per second according to the input voltage. In addition, the vibration generated in the piezoelectric ceramic is transmitted to the skin of the human body through the metal plate, and the cosmetic effect is exhibited. The cosmetic effect of the ultrasonic cosmetic device is mainly a cleaning effect, a warming effect, a skin lipolysis effect, and the like.
Here, the cleansing effect is to permeate the inside of the skin with the shock waves generated based on the ultrasonic cavitation (ultrasonic cavitation) mechanism, to discharge skin secretions to the outside of the skin, and to be used for acne treatment and the like. In addition, the warming effect can transfer the friction heat generated based on the ultrasonic work to the inside of the skin, so that the internal tissue of the skin is heated, thereby relieving the muscle stiffness and activating the function of skin elasticity. The lipolytic effect means a function of converting skin fat into a state of being easily decomposed or into fatty acids by the action of warming and vibration of ultrasonic waves, promoting the flow of blood and lymph, or inducing the secretion of hormones having a lipolytic action.
As disclosed in patent document 1 (korean laid-open patent publication No. 10-2012-0103248), the ultrasonic beauty apparatus of the related art may include a head and a hand-held body as a hand-held device for fat decomposition.
The head of such a prior art ultrasonic beauty apparatus is manufactured by a press method using a conductive metal plate material so as to be able to release ultrasonic waves.
However, the head of the ultrasonic beauty apparatus of the related art is made of an ice-cold metal material and has a relatively low temperature compared to the skin temperature before operation, so that there is a possibility that the head may give a feeling of discomfort when contacting the skin, and it is difficult to be a product having affinity to the human body, and it is difficult to provide the head in a simple and planar form, and thus it is difficult to provide functionality as an ultrasonic beauty apparatus.
For example, the shape of the head of the ultrasonic cosmetic device of the related art is manufactured by a stamping method, and thus may be limited in the quality as well as the function and design of the ultrasonic cosmetic device.
In addition, the head of the ultrasonic beauty device in the prior art can only realize the coating colors such as silver color or golden color due to the characteristics of metal materials, and is limited in realizing various colors.
Disclosure of Invention
Embodiments of the present invention have been made to solve the above-described problems, and an object of the present invention is to provide an ultrasonic cosmetic apparatus using a nonconductive substance, which is easily applicable to a functional high-quality material, easily exhibits a color, can freely design a shape, and can improve an ultrasonic function, and a method for manufacturing the same.
According to an aspect of the present invention, there may be provided an ultrasonic cosmetic device using a non-conductive substance, the ultrasonic cosmetic device including: a main body section having a hand-held structure and carrying an ultrasonic oscillation circuit; a piezoelectric ceramic disposed inside the main body portion so as to be supplied with power from the ultrasonic oscillation circuit to generate ultrasonic vibration; and an ultrasonic transmission part attached to the piezoelectric ceramic and supported by the main body part, the ultrasonic transmission part being molded from a mixed raw material in a powder form including a non-conductive molding raw material.
Further, the ultrasonic transmission unit may include: a coupling portion integrally formed on a surface of the ultrasonic transmitting portion so as to be arrangeable at a distal end of the main body portion; and a three-dimensional pattern part integrally formed at the coupling part and exposed to the outside of the main body part, the coupling part including a slit or a hole.
In addition, the main body may include: a charging circuit connected to the ultrasonic oscillation circuit and a rechargeable battery; a housing on which the charging circuit and the ultrasonic oscillation circuit are mounted; a contact terminal portion electrically connected to the charging circuit, and coupled to the housing to expose the charging terminal to an outside of the main body portion; and an inner case mounted on an opening portion at a distal end of the outer case, having an installation space for mounting the piezoelectric ceramic, and wrapping a coupling portion of the ultrasonic transmission portion, wherein the piezoelectric ceramic electrically connected to the ultrasonic oscillation circuit is coupled to an inner surface of the ultrasonic transmission portion in the installation space of the inner case, and the ultrasonic vibration of the piezoelectric ceramic is transmitted to a body or skin through a three-dimensional pattern portion of the ultrasonic transmission portion.
Further, the body portion may include a docking system formed with a docking groove portion having a groove of a size corresponding to a bottom of the body portion so as to be electrically accessible through the contact terminal portion.
The non-conductive molding material may include one or more of zirconia powder, sapphire powder, and plastic powder that can be molded or polished so as to be bonded to the piezoelectric ceramic, wherein the sapphire powder is at least one of diamond powder, ruby powder, sapphire powder, emerald powder, topaz powder, rock crystal, amethyst powder, coral powder, pearl powder, opal powder, onyx powder, diopside powder, chrysotile powder, rhodochrosite powder, garnet powder, red tourmaline powder, malachite powder, tourmaline powder, spinel powder, amethyst powder, apatite powder, and cordierite powder.
In addition, the mixed raw material may include a colorant powder mixed with the non-conductive molding raw material to exhibit a color and a binder powder for powder metallurgy.
According to another aspect of the present invention, there is provided a method of manufacturing an ultrasonic cosmetic apparatus using a nonconductive substance, the method being used for manufacturing an ultrasonic transmission unit that transmits ultrasonic vibration from a piezoelectric ceramic of a main body portion of a handheld structure having an ultrasonic oscillation circuit mounted thereon, the method including: a raw material preparation step of mixing a colorant powder, a binder powder, and a nonconductive molding material with a mixer (blender) as a mixing raw material for manufacturing the ultrasonic transmission part; a supplying step of supplying the mixed raw material to a mold having an inner shape of the mold corresponding to a bonding portion for bonding with the main body portion and a three-dimensional pattern portion for transmitting ultrasonic waves, respectively; a molding step of forming the ultrasonic transmission part by bonding the powder particles of the mixed raw material to each other by pressing the mold; a sintering step of heat-treating the ultrasonic transmission part formed in the molding step to form mechanical strength and durability required for transmitting ultrasonic waves in the ultrasonic transmission part by chemical bonding due to diffusion between powder particles of the mixed raw material; and a polishing step of polishing and grinding the ultrasonic transmission part subjected to the sintering step by using a barrel mill.
In the raw material preparation step, the non-conductive molding raw material among the mixed raw materials may be zirconia powder, and the mixed raw materials may be mixed with a component content of 86.9 wt% of the non-conductive molding raw material and 13.1 wt% of the binder powder to display white, or the mixed raw materials may be crushed by a Z-type mixer with a component content of 83.9 wt% of the non-conductive molding raw material, 13.1 wt% of the binder powder, and 3 wt% of the colorant powder as a black pigment to display black, so that the crushed mixed raw materials have a particle size distribution corresponding to 300 mesh (mesh) to 320 mesh.
The raw material mixture to be pulverized may include one or more of zirconia powder, precious stone powder, and plastic powder.
According to the ultrasonic beauty apparatus using a nonconductive substance and the method of manufacturing the same of the present invention, since the ultrasonic transmission part can be manufactured by molding, not only a product having a good affinity to a human body but also an effect of realizing a high-grade appearance as compared with a conventional product can be obtained.
The ultrasonic transmission unit can be manufactured to have various designs such as a three-dimensional curved surface, and has an advantage that colors can be easily expressed.
Further, since the ultrasonic transmission part is made of a nonconductive material or a nonconductive molding material which is a biologically inactive material, it can be a high-quality product which is excellent in color and luster, has high biocompatibility (bio-compatibility), and can minimize side effects or skin problems when it is brought into contact with the skin.
Drawings
Fig. 1 is a perspective view of an ultrasonic beauty apparatus using a non-conductive substance according to an embodiment of the present invention.
Fig. 2 is a sectional view for explaining the inside of the ultrasonic cosmetic device using a non-conductive substance shown in fig. 1.
Fig. 3 is a flowchart for explaining a method of manufacturing the ultrasonic transmission part of the ultrasonic beauty apparatus using a nonconductive substance shown in fig. 1.
Fig. 4a to 4e are device operation diagrams for explaining the manufacturing method of each step shown in fig. 3.
Detailed Description
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In describing the present invention, when it is determined that the detailed description of the related known structure or function may obscure the gist of the present invention, the detailed description thereof will be omitted.
Fig. 1 is a perspective view of an ultrasonic beauty apparatus using a non-conductive substance according to an embodiment of the present invention, and fig. 2 is a sectional view for explaining the inside of the ultrasonic beauty apparatus using a non-conductive substance shown in fig. 1.
Referring to fig. 1 and 2, the ultrasonic beauty apparatus 10 of the present embodiment may include a main body 100, a piezoelectric ceramic 200, and an ultrasonic transmission unit 300.
The body portion 100 is a hand-held structure and may include an injection molded plastic housing, namely, an outer shell 160. The body portion 100 may have a streamlined design to enable a user to hold it in his hand and to facilitate handling. The switch 170 may be provided in the main body 100 so as to be electrically connected to the ultrasonic oscillation circuit 110, which will be described later, and may start or stop the operation of the ultrasonic oscillation circuit 110 or adjust the ultrasonic frequency. As an example, the switch 170 may be disposed to be exposed to the front of the housing 160 of the body part 100. Here, the switch 170 may have a switch button structure for performing a waterproof process with respect to a switch installation groove of the case 160 of the main body 100, or may have a structure of an operation control device which is an inductive switch for measuring capacitance and senses a touch input of a user by measuring capacitance between a conductive layer and an electrical ground.
On the other hand, the main body 100 can be stored and charged in the docking system 400. As an example, the docking system 400 may function as a charging function as well as a placing function to enable conversion of an external power source (e.g., AC220V) to a direct current power source (e.g., DC 5V).
The docking system 400 may include a docking groove 410 for inserting and placing the main body 100. Here, the docking groove portion 410 may have a groove having a size corresponding to the bottom of the body portion 100. Further, a spring terminal (not shown) may be formed so as to be electrically contacted with the charging terminal 141 of the contact terminal portion 140 of the body portion 100 when the body portion 100 is inserted into the mating groove portion 410. The dc power converted by the docking system 400 may be input to the charging circuit 120 of the main body 100.
In the present embodiment, the case where the ultrasonic cosmetic apparatus 10 is charged and operated is described as an example, but the ultrasonic cosmetic apparatus 10 may have a configuration of a battery replacement method.
The ultrasonic oscillation circuit 110 may be mounted inside the main body 100. The ultrasonic oscillation circuit 110 excites the piezoelectric ceramic 200 with a power source, and the excitation frequency thereof can be set within a range in which the blood circulation of the skin at the contact site can be increased, the internal tissue temperature of the skin can be raised, the lipolysis of the skin can be activated, or the flow of blood and lymph in the skin can be promoted.
As such, the piezoelectric ceramic 200 may be disposed inside the main body part 100 so as to be supplied with power from the ultrasonic oscillation circuit 110 to generate vibration. The piezoelectric ceramic 200 may be electrically connected to the ultrasonic oscillation circuit 110 by a wire.
The ultrasonic transmission part 300 may be attached to the piezoelectric ceramic 200, supported by the main body part 100 through the inner case 150, and molded from a powder-form mixed material including a non-conductive molding material.
In the present embodiment, the ultrasonic transmission unit 300 may be a head portion that is in direct contact with the body or the skin in order to realize an ultrasonic cosmetic apparatus using zirconia or a non-conductive substance corresponding thereto.
In particular, since the ultrasonic transmission unit 300 is molded from a ceramic material (for example, zirconia and alumina) for an ultrasonic beauty instrument, it is possible to realize an ultrasonic instrument which has a free appearance shape, a diamond appearance, and a non-conductive material. That is, the ultrasonic transmission unit 300 can be formed by injection molding such as powder metallurgy, that is, powder injection molding, and is therefore very advantageous in terms of design and function. For example, since the ultrasonic transmission unit 300 uses a jewel powder or the like as a non-conductive molding material, it is possible to contribute to the improvement in the appearance of the ultrasonic transmission unit 300. On the contrary, the head part of the related art manufactured by the conventional metal press process has many design limitations or has a cool touch due to a metal material, and on the contrary, the ultrasonic transmission part 300 manufactured by powder injection using a non-conductive molding material such as zirconia and alumina can be manufactured to have various shapes or three-dimensional shapes as compared with the head part of the related art, and the touch and color can be very excellent as compared with the metal material of the related art.
In addition, in the case of a conventional cosmetic device in which the head is made of a material such as stainless steel (SUS) or titanium, the head is formed only in a flat surface in material processing, and thus ultrasonic waves can be used only in a flat area of the head.
However, the ultrasonic transmission unit 300 of the present embodiment can have an ED three-dimensional shape, that is, a three-dimensional pattern unit, and thus has an advantage that ultrasonic waves can be applied to a specific part of the skin in contact with the three-dimensional pattern unit.
Further, the ultrasonic transmission unit 300 can realize a high-grade product having a glossy design. For example, the ultrasonic transmission part 300 has an advantage that polishing and grinding can be performed by a barrel grinder as a subsequent process after injection molding. That is, the ultrasonic transmission unit 300 can have a texture such as a gem in appearance by utilizing the advantages of polishing and polishing, and can realize a high-grade appearance at a low cost in a cosmetic instrument.
In contrast to the conventional ultrasonic beauty apparatus in which the head made of a metal material is used to implement an ultrasonic beauty apparatus by using an iontophoretic current, the ultrasonic transmission unit 300 of the present embodiment is used to implement a product using a nonconductive material, i.e., a nonconductive molding material, and thus, it is possible to eliminate the need for applying an iontophoretic current as in the conventional art.
For example, the non-conductive molding material used for manufacturing the ultrasonic transmission part 300 may be a pulverized mixed material that can be molded or polished so as to be bonded to the piezoelectric ceramic 200. That is, as the non-conductive molding material or the crushed mixed material, the mixed material mentioned in the present specification may include any one of zirconia powder, gem powder (wherein, the gem powder is at least any one of diamond, ruby, sapphire, emerald, topaz, crystal, amethyst, coral, pearl, opal, onyx, diopside, chrysolite, rhodochrous, red tourmaline, malachite, tourmaline, spinel, xanthogen, apatite, and cordierite), plastic powder, or a mixture of at least one of these powders.
The mixed material may be constituted by containing a biologically inactive material.
The non-conductive molding material is a mixed material, and may include a colorant powder and a binder powder mixed with the non-conductive molding material. Here, the colorant powder may be an additive that shows the color of the ultrasonic transmission part 300. In addition, the colorant powder itself may be composed of a gem-like powder material or a biologically inactive material in terms of color.
Therefore, the ultrasonic transmission part 300 may have various colors and gloss based on the inherent color of the nonconductive molding material, or may have more colors and gloss by further containing a separate colorant powder.
In addition, the components of the binder powder can be removed from the ultrasonic transmission part 300 by a chemical bonding action due to the diffusion of the powder particles from each other in the sintering step and a heating action in the sintering step. As a result, the ultrasonic transmission part 300 having completed the sintering step can be composed of the colorant powder and the nonconductive molding material.
The ultrasonic transmitting portion 300 includes a coupling portion 310 integrally formed with a surface of the ultrasonic transmitting portion 300 so as to be disposed at a distal end of the main body portion 100. Here, the coupling portion 310 of the ultrasonic transmission portion 300 may be a slit or a hole formed in the ultrasonic transmission portion 300.
For example, the slit as the coupling portion 310 may be engaged with a bottom inner side rim protrusion of the inner case 150, whereby the ultrasonic transmission portion 300 and the inner case 150 may be coupled to each other.
The ultrasonic transmission unit 300 may include a three-dimensional pattern 320, and the three-dimensional pattern 320 may extend from the coupling portion 310 of the ultrasonic transmission unit 300, be formed integrally with the coupling portion 310, and be exposed to the outside of the body 100.
The ultrasonic transmission unit 300 having the three-dimensional pattern unit 320 has a relatively low thermal conductivity due to its material characteristics, hardly conducts electricity, and has a relatively high hardness.
The solid pattern part 320 may be a 3D solid shape corresponding to a face shape, an embossed shape, a groove or a protrusion shape in a curved form, may be variously set so as to correspond to a mold internal shape of a mold for manufacturing the ultrasonic transmission part 300, and thus may not be limited to a specific shape.
On the other hand, the main body 100 includes a charging circuit 120 connected to the ultrasonic oscillation circuit 110 and the rechargeable battery 130. Here, the rechargeable battery 130 may have a size that can be built in the main body 100 and a capacitance that can operate the ultrasonic oscillation circuit 110. The charging circuit 120 may have a general charging circuit structure for an electronic device in the form of a general handset or a portable terminal and an overcharge protection structure.
The main body 100 includes a case 160 on which the charging circuit 120 and the ultrasonic oscillator circuit 110 are mounted. Here, the housing 160 may be designed to be vertically separable and attachable, and a gap of the attached housing 160 may be covered by a sealing portion (not shown) or an adhesive.
In addition, the main body part 100 may include a contact terminal part 140, and the contact terminal part 140 is electrically connected to the charging circuit 120, and is combined with the housing 160 such that the charging terminal 141 is exposed to the outside of the main body part 100.
The main body 100 may include an inner case 150, the inner case 150 supporting the ultrasonic transmission unit 300, and the ultrasonic transmission unit 300 mounted on the main body 100. Here, the inner case 150 may be mounted on the opening 161 at the end of the outer case 160. For this, a stepped portion in the form of a groove may be formed at the bottom outer edge of the inner case 150 so as to be capable of being fitted into the opening portion 161 of the outer case 160.
The inner case 150 may have an installation space for mounting the piezoelectric ceramic 200, and function to wrap the coupling portion 310 of the ultrasonic transmission portion 300.
Then, the piezoelectric ceramic 200 electrically connected to the ultrasonic oscillation circuit 110 may be bonded or attached to the inner surface of the ultrasonic transmission section 300 in the installation space of the inner case 150.
Thus, the ultrasonic vibration of the piezoelectric ceramic 200 excited by the ultrasonic oscillation circuit 110 can be transmitted to the site of cosmetic operation, i.e., the body or the skin, through the ultrasonic transmission section 300 and the three-dimensional pattern section 320 thereof.
Hereinafter, a method for manufacturing the ultrasonic cosmetic device using the nonconductive substance according to the present embodiment will be described.
Fig. 3 is a flowchart for explaining a method of manufacturing the ultrasonic transmission part of the ultrasonic cosmetic device using a nonconductive substance shown in fig. 1, and fig. 4a to 4e are device operation diagrams for explaining the method of manufacturing each step shown in fig. 3.
Referring to fig. 3 to 4e, a method for manufacturing an ultrasonic transmission unit 300, in which the ultrasonic transmission unit 300 obtains ultrasonic vibration transmission from a piezoelectric ceramic of a main body portion of a handheld structure having an ultrasonic oscillation circuit mounted thereon, is disclosed below.
The manufacturing method of the present embodiment may include: a raw material preparation step (S100) of mixing the colorant powder 501, the binder powder 502, and the nonconductive molding material 503 with a mixer (not shown) as a raw material for manufacturing the ultrasonic transmission part 300.
Referring to fig. 4a, in the raw material preparation step (S100), a Z-type mixer for pulverizing and mixing raw materials, a powder raw material supply device (not shown), and a storage tank 520 may be used.
In the raw material preparation step (S100), the colorant powder 501, the binder powder 502, and the nonconductive molding material 503 are mixed to produce a mixed raw material. The component content of the mixed raw material or the weight percentage (wt%) thereof may be different depending on the color and the material, and for example, the ultrasonic transmission part 300 of the ultrasonic beauty apparatus may be manufactured in white or black. That is, when white, the non-conductive molding material 503 is zirconia (ZrO)2) Since the primary color is white, the additional colorant powder 501 may not be required. For example, when the non-conductive molding material 503 is zirconia powder in the white mixed material for the ultrasonic transmission part 300, the non-conductive molding material 503 may be 86.9 wt% and the binder powder 502 may be 13.1 wt%. In the case where the non-conductive molding material 503 is zirconia powder in the mixed material for the black ultrasonic transmission part 300, the non-conductive molding material 503 may be 83.9 wt%, the binder powder 502 may be 13.1 wt%, and the colorant powder 501 as a black pigment (black pigment) may be 3 wt%.
On the other hand, in the raw material preparation step (S100), a functional material emitting far infrared rays may be further included as an additive, and in this case, the component content of the mixed raw materials may be adjusted.
The mixed raw materials may be pulverized by a Z-type mixer 500. As a result, the pulverized mixed raw material can have a particle size distribution corresponding to 300 mesh (mesh) to 320 mesh.
In this case, the 300 mesh to 320 mesh value of the mixed raw material may be a critical value for producing the optimum ultrasonic transmission part 300 in the molding step (S120) and the sintering step (S130) to be described later. That is, a particle size distribution less than the mesh value may make it difficult to obtain the ultrasonic transmission part 300 in a semi-finished form, and a particle size distribution exceeding the mesh value may degrade molding and sintering quality of the ultrasonic transmission part 300, and thus the mesh value may have a critical meaning.
In addition, the manufacturing method of the present embodiment may include: a supply step (S110) of supplying the mixed raw material to a mold 600 having a mold internal shape 610, the mold internal shape 610 corresponding to a bonding portion for bonding to the main body portion and a three-dimensional pattern portion for transmitting the ultrasonic wave, respectively.
Referring to fig. 4b, the powder quantitative supplier 530 may function to supply the mixed raw material for injection molding the ultrasonic transmission part 300 from the storage tank 520 to the mold internal shape 610 of the mold 600.
After the supplying step (S110), a molding step (S120), a sintering step (S130), and a polishing step (S140) may be performed.
The molding step (S120) may be a series of processes for manufacturing the ultrasonic transmission part 300 by bonding the powder particles of the mixed raw material to each other by pressurization of the mold 600.
Referring to fig. 4c, the molding step (S120) is a process of manufacturing the mixed raw material in the form of mixed powder into a semi-finished product form corresponding to the mold 600, and may be a process of: the mechanical strength is imparted to the ultrasonic transmission part 300 in the semi-finished product form to such an extent that the powder particles of the mixed raw material are sufficiently bonded without affecting the continuous supply when the sintering step (S130) of the next process is performed.
A molding die including a pattern, a hydraulic circuit for operating or supporting the molding die, an actuator, and the like may be collectively referred to as a die 600.
Referring to fig. 4d, the sintering step (S130) may be a process of heat-treating the ultrasonic transmission part 300 in the semi-finished form manufactured in the molding step (S120) to form mechanical strength and durability required for transmitting ultrasonic waves in the ultrasonic transmission part 300 by chemical bonding due to diffusion between powder particles of the mixed raw material.
Here, the sintering apparatus 700 for heat-treating the ultrasonic transmission unit 300 may be constituted by a heating and cooling apparatus in the form of an in-line heating furnace or a closed heating box.
The sintering temperature, heating time, and process parameter values such as pressure, cooling temperature, and cooling time of the sintering apparatus 700 may be selectively set according to the type of the raw material mixture of the ultrasonic transmission unit 300, and may not be limited to specific values.
Referring to fig. 4e, the ultrasonic wave transmitting part 300 passing through the sintering apparatus 700 is supplied to the drum grinder 800 side. Here, the barrel grinder 800 is a mechanical device for barrel processing, and may be a unit that makes the surface of the ultrasonic transmission part 300 have texture or luster by rotating or centrifugally whirling or vibrating and reciprocating a barrel (for example, a grinding barrel) into which a workpiece, a grinding stone (MEDIA), cooling water, and a mixture (COMPOUND) are put, the grinding stone and the ultrasonic transmission part 300 contact each other, and removing foreign matter (Scale) or burrs (burr) by a frictional motion, and the like.
Such a polishing step (S140) may mean a series of processes of polishing and grinding the ultrasonic transmission part 300 having undergone the sintering step (S130) using the drum grinder 800. In this way, the corner portion of the ultrasonic transmission unit 300 subjected to the polishing step (S140) can be chamfered to a degree of 0.2R to 0.3R (curvature).
As a comparative example, the corner portion of the ultrasonic transmission part 300 separated from the mold 600 before the polishing step (S140) may be in a state of being a chamfered portion of about 0.1R.
Therefore, there is an advantage that even if a force such as an excited ultrasonic vibration or an impact applied from the outside is transmitted to the ultrasonic transmission unit 300, the corner portion of the ultrasonic transmission unit 300 and the like are not locally damaged.
In this way, the ultrasonic transmission part 300 having undergone the polishing step (S140) can be combined with the main body part 100 shown in fig. 1 or 2 to form an ultrasonic beauty apparatus having gorgeous gloss and color.
After the polishing step (S140), the surface of the ultrasonic transmission part 300 may be further subjected to surface texture processing such as wire cutting by using a separate wire cutting die device (not shown).
As described above, since the ultrasonic transmission part 300 of the ultrasonic beauty apparatus is manufactured by the above method, the color of the ultrasonic transmission part 300 can be maintained for 10 years or more or for a long period of time, and as a result, the ultrasonic beauty apparatus can have very excellent color quality performance and can have more excellent expression (for example, touch, color, gloss, shape and texture based on a three-dimensional pattern) than the head part of the related art having a metal surface.
In addition, the ultrasonic transmission part 300 of the ultrasonic beauty device can have a gem-like surface texture by polishing, and can minimize the generation of scratches during the use of the beauty device by using the glass-like surface strength.
The ultrasonic cosmetic device using a nonconductive substance according to the embodiment of the present invention has been described above by way of specific embodiments, but it is merely an example, and the present invention is not limited thereto, and should be interpreted as having the widest scope based on the basic concept disclosed in the present specification. Those skilled in the art can combine and substitute the embodiments to implement a pattern of an unspecified shape without departing from the scope of the present invention. In addition, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made in the disclosed embodiments without departing from the scope of the invention.
Claims (9)
1. An ultrasonic cosmetic device using a non-conductive substance, the ultrasonic cosmetic device comprising:
a main body section having a hand-held structure and carrying an ultrasonic oscillation circuit;
a piezoelectric ceramic disposed inside the main body portion so as to be supplied with power from the ultrasonic oscillation circuit to generate ultrasonic vibration; and
and an ultrasonic transmission part attached to the piezoelectric ceramic and supported by the main body part, the ultrasonic transmission part being molded from a mixed raw material in a powder form including a non-conductive molding raw material.
2. The ultrasonic cosmetic device using a non-conductive substance according to claim 1,
the ultrasonic transmission unit includes:
a coupling portion integrally formed on a surface of the ultrasonic transmitting portion so as to be arrangeable at a distal end of the main body portion; and
a three-dimensional pattern part integrally formed with the coupling part and exposed to the outside of the main body part,
the joint comprises a slit or a hole.
3. The ultrasonic cosmetic device using a non-conductive substance according to claim 2,
the main body portion includes:
a charging circuit connected to the ultrasonic oscillation circuit and a rechargeable battery;
a housing on which the charging circuit and the ultrasonic oscillation circuit are mounted;
a contact terminal portion electrically connected to the charging circuit, and coupled to the housing to expose the charging terminal to an outside of the main body portion; and
an inner case mounted on the opening at the end of the outer case, having an installation space for mounting the piezoelectric ceramic, and wrapping the coupling portion of the ultrasonic transmission portion,
the piezoelectric ceramic electrically connected to the ultrasonic oscillation circuit is bonded to an inner surface of the ultrasonic transmission section in the installation space of the inner case,
the ultrasonic vibration of the piezoelectric ceramic is transmitted to the body or the skin through the three-dimensional pattern portion of the ultrasonic transmission portion.
4. The ultrasonic cosmetic device using a non-conductive substance according to claim 3,
the body portion includes a docking system formed with a docking slot portion having a slot of a size corresponding to the bottom of the body portion so as to be electrically accessible through the contact terminal portion.
5. The ultrasonic cosmetic device using a non-conductive substance according to claim 1,
the non-conductive molding material includes any one or a mixture of at least one of zirconia powder, sapphire powder, and plastic powder that can be molded or polished in a manner of being bonded to the piezoelectric ceramic, wherein the sapphire powder is at least any one of diamond, ruby, sapphire, emerald, topaz, crystal, amethyst, coral, pearl, opal, onyx, diopside, chrysotile, rhodochrosite, garnet, malachite, tourmaline, spinel, topaz, apatite, and cordierite.
6. The ultrasonic cosmetic device using a non-conductive substance according to claim 5,
the mixed raw material includes a colorant powder mixed with the non-conductive molding raw material to exhibit a color and a binder powder for powder metallurgy.
7. A method for manufacturing an ultrasonic cosmetic device using a nonconductive substance, the method being used for manufacturing an ultrasonic transmission unit that transmits ultrasonic vibration from a piezoelectric ceramic of a main body portion of a handheld structure having an ultrasonic oscillation circuit mounted thereon, the method comprising:
a raw material preparation step of mixing a colorant powder, a binder powder, and a nonconductive molding material with a mixer as a mixing raw material for manufacturing the ultrasonic transmission part;
a supplying step of supplying the mixed raw material to a mold having an inner shape of the mold corresponding to a bonding portion for bonding with the main body portion and a three-dimensional pattern portion for transmitting ultrasonic waves, respectively;
a molding step of forming the ultrasonic transmission part by bonding the powder particles of the mixed raw material to each other by pressing the mold;
a sintering step of heat-treating the ultrasonic transmission part formed in the molding step to form mechanical strength and durability required for transmitting ultrasonic waves in the ultrasonic transmission part by chemical bonding due to diffusion between powder particles of the mixed raw material; and
and a polishing step of polishing and grinding the ultrasonic transmission part subjected to the sintering step by using a barrel grinder.
8. The method for manufacturing an ultrasonic cosmetic device using a non-conductive substance according to claim 7,
in the raw material preparation step, the raw material is fed to the raw material supply unit,
the non-conductive molding material in the mixed material is zirconia powder, the white is displayed by mixing the components with the content of 86.9 wt% of the non-conductive molding material and 13.1 wt% of the binder powder, or the black is displayed by mixing the components with the content of 83.9 wt% of the non-conductive molding material, 13.1 wt% of the binder powder and 3 wt% of the colorant powder as the black pigment, and the mixed material is crushed by a Z-type mixer, so that the crushed mixed material has the particle size distribution corresponding to 300 meshes to 320 meshes.
9. The method for manufacturing an ultrasonic cosmetic device using a non-conductive substance according to claim 8,
the pulverized mixed raw material comprises one or more of zirconia powder, precious stone powder and plastic powder.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020170083841A KR101997865B1 (en) | 2017-06-30 | 2017-06-30 | Ultrasonic cosmetic device using nonconductive materials and menufacuring method thereof |
| KR10-2017-0083841 | 2017-06-30 | ||
| PCT/KR2018/007490 WO2019004806A1 (en) | 2017-06-30 | 2018-07-02 | Ultrasonic beauty device using nonconductive material, and manufacturing method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110831666A true CN110831666A (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880044224.9A Pending CN110831666A (en) | 2017-06-30 | 2018-07-02 | Ultrasonic cosmetic device using non-conductive substance and method for manufacturing the same |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR101997865B1 (en) |
| CN (1) | CN110831666A (en) |
| TW (1) | TWI767024B (en) |
| WO (1) | WO2019004806A1 (en) |
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| DE102020200423A1 (en) | 2020-01-15 | 2021-07-15 | Beiersdorf Aktiengesellschaft | Method for the introduction of active substances into the skin |
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Also Published As
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| WO2019004806A1 (en) | 2019-01-03 |
| KR101997865B1 (en) | 2019-07-08 |
| KR20190003229A (en) | 2019-01-09 |
| TWI767024B (en) | 2022-06-11 |
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