WO2019088679A2 - Ingot-integrated disposable plunger assembly - Google Patents

Ingot-integrated disposable plunger assembly Download PDF

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Publication number
WO2019088679A2
WO2019088679A2 PCT/KR2018/013054 KR2018013054W WO2019088679A2 WO 2019088679 A2 WO2019088679 A2 WO 2019088679A2 KR 2018013054 W KR2018013054 W KR 2018013054W WO 2019088679 A2 WO2019088679 A2 WO 2019088679A2
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WO
WIPO (PCT)
Prior art keywords
ingot
plunger
mold
bonding material
forming die
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PCT/KR2018/013054
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French (fr)
Korean (ko)
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WO2019088679A3 (en
Inventor
김영수
이승섭
박성만
이영준
Original Assignee
김영수
이승섭
박성만
이영준
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Publication of WO2019088679A2 publication Critical patent/WO2019088679A2/en
Publication of WO2019088679A3 publication Critical patent/WO2019088679A3/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/08—Artificial teeth; Making same
    • A61C13/081—Making teeth by casting or moulding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/08—Artificial teeth; Making same
    • A61C13/083—Porcelain or ceramic teeth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/20—Methods or devices for soldering, casting, moulding or melting

Definitions

  • the present invention relates to a plunger for press-molding an ingot injected into a mold, and more particularly, to a plunger assembly in which an ingot is integrally coupled to an end of the mold.
  • a ceramic is melted and press-formed and then placed on a tooth.
  • the ceramics are molded into a specific shape as described above, And then pressurized by a plunger.
  • 1 and 2 are a perspective view and a cross-sectional view showing a conventional plunger using process.
  • the ingot 20 is inserted into the injection path 12 of the molding die 10, the plunger 30 is moved downward to form the ingot 20, (20). At this time, a molding space 14 is formed at the end of the injection path 12, and the ingot 20 is press-fitted into the molding space 14 to be a dental prosthesis having the same shape as the molding space 14 .
  • Patent Document 1 KR 10-2013-0012572 A
  • the present invention has been proposed in order to solve the above problems, and it is an object of the present invention to provide a method and a device for injecting ingot and plunger into a mold by simply introducing one end of a plunger into an injection path of a mold, In which the ingot is coupled to one end in the longitudinal direction so as to prevent the phenomenon that the ingot is injected in a wrong direction.
  • a disposable plunger assembly comprising:
  • a plunger which is made of a refractory investment material and has one end in the longitudinal direction inserted downward into the molding die to press-mold an ingot located inside the molding die with a dental prosthesis;
  • the upper surface of the ingot is integrally joined to the bottom surface of the plunger.
  • the ingot and the plunger are formed into a cylindrical shape having the same diameter
  • a chamfer is formed at the bottom edge of the plunger
  • the bonding material is applied over the entire edges of the plunger and the ingot.
  • the bonding material is applied in a dot pattern.
  • a scale indicating a distance to be inserted into the molding die is engraved.
  • a notch is formed on the bottom surface of the plunger
  • the use of the ingot integral type disposable plunger assembly according to the present invention can perform the ingot injection and the plunger pressing at one time only by the step of drawing one end of the plunger into the injection path of the molding die to improve the productivity, It is possible to prevent the ingot from being misplaced and thus to reduce the defective rate.
  • 1 and 2 are a perspective view and a cross-sectional view showing a conventional plunger using process.
  • FIG 3 is an exploded view of an ingot integral disposable plunger assembly according to the present invention.
  • FIG 4 is an assembled cross-sectional view of the ingot integral type disposable plunger assembly according to the present invention.
  • FIG. 5 and 6 are side views of a second embodiment of a disposable plunger assembly with an ingot according to the present invention.
  • FIG. 7 is an exploded view of a third embodiment of a disposable plunger assembly according to the present invention.
  • FIG. 3 is an exploded view of an ingot integral type disposable plunger assembly according to the present invention
  • FIG. 4 is an assembly sectional view of an ingot integral disposable plunger assembly according to the present invention.
  • the disposable plunger assembly is an apparatus used for manufacturing a dental prosthesis of a specific shape by pressing an ingot 200 inserted into a mold (see Figs. 1 and 2)
  • a plunger (100) made of a refractory investment material, one end of which is inserted downward in the longitudinal direction into the inside of the forming die to pressurize the ingot (200) positioned inside the forming die with a dental prosthesis,
  • the ingot 200 is coupled to the plunger 100 in an integrated manner, that is, the top surface of the ingot 200 is coupled to the bottom surface of the plunger 100.
  • the operator inserts the ingot 200 into the mold, and the ingot 200 inserted into the mold is inserted into the plunger 100, It is not necessary to separately perform the process of pressurization by the pressurizing unit.
  • the operator inserts the ingot 200 and the plunger 100 only by operating the plunger 100 to feed the ingot 200 downward, 100) can be performed at a time, thereby increasing the productivity of the dental prosthesis.
  • the ingot 200 is tilted or tilted to one side in the process of putting the ingot 200 into the mold, defective product may occur. Therefore, the ingot 200 inserted into the mold is removed and removed, and a new ingot 200 It is necessary to re-inject the ingot 200 into the mold. Thus, it takes a long time to take out and re-insert the ingot 200, which may result in a problem that the productivity is significantly lowered.
  • the plunger assembly according to the present invention is inserted into the forming die in a state where the ingot 200 is coupled to the lower end of the plunger 100, there is no fear that the ingot 200 is tilted or tilted to one side, It is possible to obtain not only a product failure but also an improvement in productivity.
  • (100) is preferably formed in a cylindrical shape having the same diameter.
  • the ingot 200 and the plunger 100 are formed into a cylindrical shape having the same diameter, the upper surface of the ingot 200 and the bottom surface of the plunger 100 should be in contact with each other.
  • the ingot 200 and the plunger 100 may be formed in the shape of a polygonal column having the same shape and the same horizontal cross-sectional area when the mold is formed into a polygonal shape. That is, although only the case where the ingot 200 and the plunger 100 are formed in a cylindrical shape is shown in this embodiment, the ingot 200 and the plunger 100 may be replaced with various shapes.
  • the plunger 100 and the ingot 200 are bonded to each other by a bonding material 120.
  • the bonding material 120 is bonded to the outer surface of the plunger 100 and the ingot 200 There is a possibility that the bonding material 120 may be interfered with when the plunger 100 and the ingot 200 are introduced into the injection path of the mold. Of course, if the bonding material 120 is applied very thinly, the bonding material 120 may not interfere with the plunger 100 and the ingot 200 when the ingot 200 is introduced into the injection furnace. In this case, There is a problem that the bonding force between the ingot 100 and the ingot 200 becomes low.
  • the plunger assembly according to the present invention is characterized in that a chamfer 110 is formed at the bottom edge of the plunger 100, and the bonding material 120 is bonded to the chamfer 110 and the ingot 200 It is preferable to be applied so as to fill the space between the upper surfaces.
  • the bonding material 120 is applied to fill the space between the upper surface of the ingot 200 and the chamfer 110, the bonding force between the plunger 100 and the ingot 200 is kept high, The plunger 100 and the ingot 200 do not protrude in a large amount from the outer surface of the ingot 200. Therefore, when the plunger 100 and the ingot 200 are introduced into the injection path of the mold, There is an advantage that it is not interfered.
  • the bonding material 120 may bond the plunger 100 and the ingot 200 and may have a detrimental effect on the processed product when the ingot 200 is pressed by the plunger 100 to be processed into a specific shape Any material can be selected as long as it is not.
  • the bonding material 120 may be applied over the entire edges of the plunger 100 and the ingot 200 to maximize the bonding force between the plunger 100 and the ingot 200,
  • the ingot 200 may be applied in a dot pattern so that the ingot 200 may be tilted to one side or only the minimum bonding force that is not tilted may be maintained. That is, the application pattern of the bonding material 120 may be variously changed according to various conditions such as the shape and size of the plunger 100 and the ingot 200, the characteristics of the mold, and the physical properties of the bonding material 120.
  • FIG. 5 and 6 are side views of a second embodiment of a disposable plunger assembly with an ingot according to the present invention.
  • the ingot 200 can not be formed into a normal shape when the ingot 200 introduced into the mold is pressed by the plunger 100, and the pressing stroke of the plunger 100 If the length is too long, the ingot 200 may be excessively pressed and the mold or the plunger 100 may be damaged. Therefore, when the ingot 200 is pressed against the plunger 100, it is preferable to insert the plunger 100 into the forming die at a pre-set proper depth. However, conventionally, it is difficult to know exactly how deeply the plunger 100 is inserted into the forming die .
  • the disposable plunger assembly according to the present invention is a disposable plunger assembly for disposing the plunger 100 so that the plunger 100 is inserted into the mold so that the plunger 100 can be visually inspected from the outside,
  • the plunger 100 may be provided on the outer surface of the plunger 100. In this case, The worker can visually check the graduations 130 and visually confirm the progress of the press.
  • the scale 130 is vertically engraved from the surface where the ingot 200 is coupled, that is, the bottom surface.
  • the scale 130 may be formed in a plurality of stripe shapes as shown in FIG. 5, and colors may be alternately arranged. Further, as shown in FIG. 6, the structure having irregularities for each color, that is, concave and convex may be alternately arranged.
  • the shape and arrangement pattern of the scale 130 are not limited to the structure shown in this embodiment, and may be variously modified.
  • FIG. 7 is an exploded view of a third embodiment of a disposable plunger assembly according to the present invention.
  • the ingot 200 has a cylindrical shape, it is sufficient to check only the verticality of the ingot 200 when the ingot 200 is inserted into the mold, but when the ingot 200 is not cylindrical, When the ingot 200 is formed in a shape having a front-back direction and a left-right direction, the ingot 200 must be introduced into a molding mold in consideration of the directionality of the ingot.
  • the front face of the ingot 200 and the front face of the plunger 100 must be aligned when the ingot 200 is coupled to the bottom face of the plunger 100.
  • the bottom face of the plunger 100 and the top face of the ingot 200 are parallel to each other It may be difficult to match the front surface of the ingot 200 to the front surface of the plunger 100.
  • the plunger assembly according to the present invention may further include a notch 140 formed on the bottom surface of the plunger 100 so that the front surface of the ingot 200 can be coincided with the front surface of the plunger 100,
  • the seating groove 220 may be formed on the upper surface of the notch 140 so that the notch 140 is inserted in a fitting manner.
  • the notch 140 is formed on the bottom surface of the plunger 100 and the seating groove 220 is formed on the upper surface of the ingot 200, an operator can insert the notch 140 of the plunger 100 into the seating of the ingot 200
  • the front face of the plunger 100 and the front face of the ingot 200 can be brought into coincidence with each other only by an operation of resting on the groove 220.
  • the plunger 100 or the ingot 200 can be finely rotated in the process of joining the plunger 100 and the ingot 200 There is a problem. 6, when the notch 140 formed on the bottom surface of the plunger 100 is seated in the seating groove 220 formed on the upper surface of the ingot 200, the plunger 100 or the ingot 200 There is an advantage that the front face of the plunger 100 and the front face of the ingot 200 are not broken.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Dental Prosthetics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

An ingot-integrated disposable plunger assembly according to the present invention comprises: an ingot inserted downward into a forming die; and a plunger, having one end in the lengthwise direction inserted downward into the forming die, for press-molding the ingot located inside the forming die into a dental prosthesis, wherein the upper surface of the ingot is integrally joined to the bottom surface of the plunger. When using the ingot-integrated disposable plunger assembly according to the present invention, it is possible to perform ingot injection and plunger pressing at one time through only a step of drawing one end of the plunger into an injection path of the forming die, such that productivity is improved, and the ingot is prevented from being mistakenly introduced into the injection path of the forming die, thereby reducing a defective rate.

Description

잉곳 일체형 일회용 플런저 조립체Ingot integral disposable plunger assembly
본 발명은 성형틀 내부에 투입된 잉곳을 가압 성형하는 플런저에 관한 것으로, 더 상세하게는 성형틀 내부로 투입되는 끝단에 잉곳이 일체로 결합되는 플런저 조립체에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plunger for press-molding an ingot injected into a mold, and more particularly, to a plunger assembly in which an ingot is integrally coupled to an end of the mold.
일반적으로 인공치관(dental crown) 또는 브릿지(dental bridge)와 같은 치과용 보철물의 경우 세라믹을 용융하여 가압성형한 후 이를 치아에 설치하는데, 이와 같이 세라믹을 특정 형상으로 성형할 때에는 성형틀 내부에 잉곳을 투입한 후, 플런저로 가압하는 방식을 활용한다.Generally, in the case of a dental prosthesis such as a dental crown or a dental bridge, a ceramic is melted and press-formed and then placed on a tooth. When the ceramics are molded into a specific shape as described above, And then pressurized by a plunger.
이하 첨부된 도면을 참조하여 종래의 플런저 사용과정에 대하여 상세히 설명한다.Hereinafter, a conventional plunger using process will be described in detail with reference to the accompanying drawings.
도 1 및 도 2는 종래의 플런저 사용과정을 도시하는 사시도 및 단면도이다.1 and 2 are a perspective view and a cross-sectional view showing a conventional plunger using process.
특정 형상의 치과용 보철물을 제작할 때에는, 도 1 및 도 2에 도시된 바와 같이 성형틀(10)의 투입로(12)에 잉곳(20)을 투입시킨 후, 플런저(30)를 하향 이동시켜 잉곳(20)을 가압한다. 이때 상기 투입로(12)의 끝단에는 성형공간(14)이 형성되어 있는바, 상기 잉곳(20)은 성형공간(14) 내측으로 압입되어 상기 성형공간(14)과 동일한 형상의 치과용 보철물로 제작된다.1 and 2, the ingot 20 is inserted into the injection path 12 of the molding die 10, the plunger 30 is moved downward to form the ingot 20, (20). At this time, a molding space 14 is formed at the end of the injection path 12, and the ingot 20 is press-fitted into the molding space 14 to be a dental prosthesis having the same shape as the molding space 14 .
그러나 이와 같이 잉곳(20)을 투입시키는 공정과 플런저(30)로 잉곳(20)을 가압하는 공정이 각각 구분되는 경우, 치과용 보철물을 성형하는데 많은 시간이 소요된다는 단점이 있다. 또한, 잉곳(20)이 투입로(12)를 따라 투입되는 동안 일측으로 기울어지거나 치우치는 경우, 플런저(30)로 잉곳(20)을 가압하였을 때 상기 잉곳(20)이 성형공간(14) 내부로 완벽하게 압입되지 못하는 현상 즉, 불량품이 발생하는 문제가 발생될 수 있다.However, when the ingot 20 is inserted and the plunger 30 is pressed against the ingot 20, it takes a long time to form the dental prosthesis. When the ingot 20 is tilted or inclined to one side while the ingot 20 is inserted along the inflow path 12, when the ingot 20 is pressed against the plunger 30, the ingot 20 is introduced into the molding space 14 A phenomenon in which the press-fitting can not be completely performed, that is, defective products may occur.
더우기, 잉곳(20)을 잘못 투입시킨 경우에는, 잘못 투입된 잉곳(20)을 꺼낸 후 새로운 잉곳(20)을 재투입시켜야 하는바, 제품 생산에 많은 시간과 노동력이 소요된다는 단점이 있다.Further, when the ingot 20 is misapplied, it is necessary to take out the wrong ingot 20 and re-insert the new ingot 20, which is disadvantageous in that it takes much time and labor to produce the product.
[선행기술문헌][Prior Art Literature]
[특허문헌][Patent Literature]
(특허문헌 1) KR 10-2013-0012572 A(Patent Document 1) KR 10-2013-0012572 A
본 발명은 상기와 같은 문제점을 해결하기 위하여 제안된 것으로, 플런저의 일단을 성형틀의 투입로로 인입시키는 공정만으로 잉곳 투입과 플런저 가압을 한 번에 수행할 수 있고, 성형틀의 투입로로 잉곳이 잘못 투입되는 현상을 방지할 수 있도록, 상기 잉곳이 길이방향 일단에 결합되는 플런저 조립체를 제공하는데 목적이 있다.SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above problems, and it is an object of the present invention to provide a method and a device for injecting ingot and plunger into a mold by simply introducing one end of a plunger into an injection path of a mold, In which the ingot is coupled to one end in the longitudinal direction so as to prevent the phenomenon that the ingot is injected in a wrong direction.
상기와 같은 목적을 달성하기 위한 본 발명에 의한 잉곳 일체형 일회용 플런저 조립체는,To achieve the above object, according to the present invention, there is provided a disposable plunger assembly comprising:
성형틀의 내부로 하향 인입되는 잉곳;An ingot downwardly drawn into the mold;
내화매몰재로 제작되며, 길이방향 일단이 성형틀의 내부로 하향 삽입되어, 상기 성형틀의 내부에 위치하는 잉곳을 치과용 보철물로 가압 성형하는 플런저;A plunger which is made of a refractory investment material and has one end in the longitudinal direction inserted downward into the molding die to press-mold an ingot located inside the molding die with a dental prosthesis;
를 포함하되,, ≪ / RTI &
상기 잉곳의 상면은 상기 플런저의 저면에 일체로 결합된다.The upper surface of the ingot is integrally joined to the bottom surface of the plunger.
*상기 잉곳과 플런저는 지름이 동일한 원통 형상으로 형성되어,The ingot and the plunger are formed into a cylindrical shape having the same diameter,
상기 잉곳의 상면과 상기 플런저의 저면이 상호 맞닿도록 결합된다.And the upper surface of the ingot and the lower surface of the plunger are brought into mutual abutment.
상기 플런저의 저면 가장자리에는 챔퍼가 형성되며,A chamfer is formed at the bottom edge of the plunger,
상기 챔퍼와 상기 잉곳의 상면 사이를 채우도록 도포되어, 상기 잉곳과 플런저를 일체로 결합시키는 본딩재를 더 포함한다.And a bonding material which is applied to fill the gap between the chamfer and the upper surface of the ingot and integrally joins the ingot and the plunger.
상기 본딩재는, 상기 플런저와 잉곳의 가장자리 전체에 걸쳐 도포된다.The bonding material is applied over the entire edges of the plunger and the ingot.
상기 본딩재는, 도트 패턴으로 도포된다.The bonding material is applied in a dot pattern.
**
상기 플런저의 외측면에는, 상기 성형틀의 내부로 삽입되는 거리를 표시하는 눈금이 새겨진다.On the outer side surface of the plunger, a scale indicating a distance to be inserted into the molding die is engraved.
상기 플런저의 저면에는 노치가 형성되고, A notch is formed on the bottom surface of the plunger,
상기 잉곳의 상면에는 상기 노치가 끼워맞춤 방식으로 삽입되는 안착홈이 형성된다.On the upper surface of the ingot, a seating groove into which the notch is inserted in a fitting manner is formed.
본 발명에 의한 잉곳 일체형 일회용 플런저 조립체를 이용하면, 플런저의 일단을 성형틀의 투입로로 인입시키는 공정만으로 잉곳 투입과 플런저 가압을 한 번에 수행할 수 있어 생산성이 향상되고, 성형틀의 투입로로 잉곳이 잘못 투입되는 현상을 방지할 수 있어 불량률을 낮출 수 있다는 장점이 있다.The use of the ingot integral type disposable plunger assembly according to the present invention can perform the ingot injection and the plunger pressing at one time only by the step of drawing one end of the plunger into the injection path of the molding die to improve the productivity, It is possible to prevent the ingot from being misplaced and thus to reduce the defective rate.
도 1 및 도 2는 종래의 플런저 사용과정을 도시하는 사시도 및 단면도이다.1 and 2 are a perspective view and a cross-sectional view showing a conventional plunger using process.
도 3은 본 발명에 의한 잉곳 일체형 일회용 플런저 조립체의 분해도이다.3 is an exploded view of an ingot integral disposable plunger assembly according to the present invention.
도 4는 본 발명에 의한 잉곳 일체형 일회용 플런저 조립체의 결합단면도이다.4 is an assembled cross-sectional view of the ingot integral type disposable plunger assembly according to the present invention.
도 5 및 도 6은 본 발명에 의한 잉곳 일체형 일회용 플런저 조립체 제2 실시예의 측면도이다.5 and 6 are side views of a second embodiment of a disposable plunger assembly with an ingot according to the present invention.
도 7은 본 발명에 의한 잉곳 일체형 일회용 플런저 조립체 제3 실시예의 분해도이다.7 is an exploded view of a third embodiment of a disposable plunger assembly according to the present invention.
이하 첨부된 도면을 참조하여 본 발명에 의한 잉곳 일체형 일회용 플런저 조립체의 실시예를 상세히 설명한다.BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a disposable plunger assembly according to the present invention will be described in detail with reference to the accompanying drawings.
도 3은 본 발명에 의한 잉곳 일체형 일회용 플런저 조립체의 분해도이고, 도 4는 본 발명에 의한 잉곳 일체형 일회용 플런저 조립체의 결합단면도이다.FIG. 3 is an exploded view of an ingot integral type disposable plunger assembly according to the present invention, and FIG. 4 is an assembly sectional view of an ingot integral disposable plunger assembly according to the present invention.
본 발명에 의한 잉곳 일체형 일회용 플런저 조립체는 성형틀(도 1 및 도 2 참조) 내측으로 투입된 잉곳(200)을 가압하여 특정 형상의 치과용 보철물을 제작하는데 사용되는 장치로서, 상기 성형틀의 내부로 하향 인입되는 잉곳(200)과, 내화매몰재로 제작되되 길이방향 일단이 성형틀의 내부로 하향 삽입되어 상기 성형틀의 내부에 위치하는 잉곳(200)을 치과용 보철물로 가압 성형하는 플런저(100)를 포함하여 구성되되, 상기 잉곳(200)이 플런저(100)에 일체로 결합된다는 점 즉, 상기 잉곳(200)의 상면이 상기 플런저(100)의 저면에 결합된다는 점에 가장 큰 특징이 있다.The disposable plunger assembly according to the present invention is an apparatus used for manufacturing a dental prosthesis of a specific shape by pressing an ingot 200 inserted into a mold (see Figs. 1 and 2) A plunger (100) made of a refractory investment material, one end of which is inserted downward in the longitudinal direction into the inside of the forming die to pressurize the ingot (200) positioned inside the forming die with a dental prosthesis, The ingot 200 is coupled to the plunger 100 in an integrated manner, that is, the top surface of the ingot 200 is coupled to the bottom surface of the plunger 100.
이와 같이 상기 잉곳(200)이 플런저(100)에 일체로 결합된 상태로 제공되면, 작업자는 잉곳(200)을 성형틀에 투입하는 과정과, 성형틀에 투입된 잉곳(200)을 플런저(100)로 가압하는 과정을 각각 별도로 수행할 필요가 없다는 장점이 있다. When the ingot 200 is provided integrally with the plunger 100, the operator inserts the ingot 200 into the mold, and the ingot 200 inserted into the mold is inserted into the plunger 100, It is not necessary to separately perform the process of pressurization by the pressurizing unit.
즉, 잉곳(200)이 플런저(100)의 저면에 일체로 결합되면, 작업자는 잉곳(200)이 성형틀 내측으로 인입되도록 플런저(100)를 하향 이송하는 조작만으로 잉곳(200) 투입과 플런저(100) 가압을 한 번에 수행할 수 있으므로, 치과용 보철물 생산성을 높일 수 있다는 장점이 있다. 또한, 잉곳(200)을 성형틀에 투입하는 과정에서 상기 잉곳(200)이 일측으로 기울어지거나 틀어지는 경우 제품 불량이 발생될 수 있으므로, 성형틀에 투입된 잉곳(200)을 꺼내어 제거한 후 새로운 잉곳(200)을 성형틀에 재투입하여야 하는데, 이와 같이 잉곳(200)을 꺼내고 재투입시키는데 많은 시간이 소요되는바 생산성이 현저히 떨어지는 문제가 발생될 수 있다.That is, when the ingot 200 is integrally coupled to the bottom surface of the plunger 100, the operator inserts the ingot 200 and the plunger 100 only by operating the plunger 100 to feed the ingot 200 downward, 100) can be performed at a time, thereby increasing the productivity of the dental prosthesis. In addition, when the ingot 200 is tilted or tilted to one side in the process of putting the ingot 200 into the mold, defective product may occur. Therefore, the ingot 200 inserted into the mold is removed and removed, and a new ingot 200 It is necessary to re-inject the ingot 200 into the mold. Thus, it takes a long time to take out and re-insert the ingot 200, which may result in a problem that the productivity is significantly lowered.
그러나 본 발명에 의한 플런저 조립체는 잉곳(200)이 플런저(100) 하단에 결합된 상태로 성형틀 내측으로 투입되므로, 상기 잉곳(200)이 일측으로 기울어지거나 틀어질 우려가 없어지게 되고, 이에 따라 제품 불량이 발생하지 아니할 뿐만 아니라 생산성이 향상되는 효과도 얻을 수 있게 된다.However, since the plunger assembly according to the present invention is inserted into the forming die in a state where the ingot 200 is coupled to the lower end of the plunger 100, there is no fear that the ingot 200 is tilted or tilted to one side, It is possible to obtain not only a product failure but also an improvement in productivity.
이때, 플런저(100)의 하단에 결합된 잉곳(200)이 성형틀 내부에서 플런저(100)에 의해 가압될 때, 상기 잉곳(200)이 전체적으로 고르게 하향 가압될 수 있도록 상기 잉곳(200)과 플런저(100)는 지름이 동일한 원통 형상으로 형성됨이 바람직하다. 이와 같이 잉곳(200)과 플런저(100)가 동일한 지름의 원통 형상으로 형성되는 경우, 상기 잉곳(200)의 상면과 상기 플런저(100)의 저면이 상호 맞닿도록 결합되어야 할 것이다.When the ingot 200 coupled to the lower end of the plunger 100 is pressed by the plunger 100 inside the mold, the ingot 200 and the plunger 100 are pressed so that the ingot 200 can be pressed down evenly, (100) is preferably formed in a cylindrical shape having the same diameter. When the ingot 200 and the plunger 100 are formed into a cylindrical shape having the same diameter, the upper surface of the ingot 200 and the bottom surface of the plunger 100 should be in contact with each other.
물론, 성형틀의 투입로 형상이 다각형 형상으로 형성되는 경우, 상기 잉곳(200)과 플런저(100)는 동일한 형상 및 동일한 크기의 수평단면적을 갖는 다각형 기둥 형상으로 형성될 수도 있다. 즉, 본 실시예에서는 상기 잉곳(200)과 플런저(100)가 원통 형상으로 형성되는 경우만을 도시하고 있으나, 잉곳(200)과 플런저(100)는 다양한 형상으로 대체될 수 있다.The ingot 200 and the plunger 100 may be formed in the shape of a polygonal column having the same shape and the same horizontal cross-sectional area when the mold is formed into a polygonal shape. That is, although only the case where the ingot 200 and the plunger 100 are formed in a cylindrical shape is shown in this embodiment, the ingot 200 and the plunger 100 may be replaced with various shapes.
한편, 상기 플런저(100)와 잉곳(200)은 별도의 본딩재(120)(Bonding material)에 의해 상호 결합되는데, 상기 본딩재(120)가 플런저(100) 및 잉곳(200)의 외측면으로부터 많이 돌출되면 상기 플런저(100) 및 잉곳(200)을 성형틀의 투입로로 투입하는 과정에서 상기 본딩재(120)가 간섭될 우려가 있다. 물론, 상기 본딩재(120)를 매우 얇게 도포하면 플런저(100) 및 잉곳(200)을 성형틀의 투입로로 투입하는 과정에서 상기 본딩재(120)가 간섭될 우려가 없지만, 이와 같은 경우 플런저(100)와 잉곳(200) 간의 결합력이 낮아지게 된다는 문제점이 있다.The plunger 100 and the ingot 200 are bonded to each other by a bonding material 120. The bonding material 120 is bonded to the outer surface of the plunger 100 and the ingot 200 There is a possibility that the bonding material 120 may be interfered with when the plunger 100 and the ingot 200 are introduced into the injection path of the mold. Of course, if the bonding material 120 is applied very thinly, the bonding material 120 may not interfere with the plunger 100 and the ingot 200 when the ingot 200 is introduced into the injection furnace. In this case, There is a problem that the bonding force between the ingot 100 and the ingot 200 becomes low.
따라서 본 발명에 의한 플런저 조립체는 이와 같은 문제점을 해결할 수 있도록, 상기 플런저(100)의 저면 가장자리에 챔퍼(110)가 형성되며, 상기 본딩재(120)는 챔퍼(110)와 잉곳(200)의 상면 사이의 공간을 채우도록 도포됨이 바람직하다. 이와 같이 본딩재(120)가 잉곳(200)의 상면과 챔퍼(110) 사이의 공간을 채우도록 도포되면, 플런저(100)와 잉곳(200) 간의 결합력이 높게 유지되면서 상기 본딩재(120)가 플런저(100) 및 잉곳(200)의 외측면으로부터 다량으로 돌출되지 아니하므로, 플런저(100) 및 잉곳(200)을 성형틀의 투입로로 투입하는 과정에서 상기 본딩재(120)가 투입로에 간섭되지 아니하게 된다는 장점이 있다.In order to solve the above problem, the plunger assembly according to the present invention is characterized in that a chamfer 110 is formed at the bottom edge of the plunger 100, and the bonding material 120 is bonded to the chamfer 110 and the ingot 200 It is preferable to be applied so as to fill the space between the upper surfaces. When the bonding material 120 is applied to fill the space between the upper surface of the ingot 200 and the chamfer 110, the bonding force between the plunger 100 and the ingot 200 is kept high, The plunger 100 and the ingot 200 do not protrude in a large amount from the outer surface of the ingot 200. Therefore, when the plunger 100 and the ingot 200 are introduced into the injection path of the mold, There is an advantage that it is not interfered.
이때 상기 본딩재(120)는, 플런저(100)와 잉곳(200)을 결합시킬 수 있으면서, 잉곳(200)이 플런저(100)에 의해 가압되어 특정 형상으로 가공될 때 가공 제품에 유해한 영향을 끼치지 아니하는 재료라면 어떠한 재료로도 선택될 수 있다.The bonding material 120 may bond the plunger 100 and the ingot 200 and may have a detrimental effect on the processed product when the ingot 200 is pressed by the plunger 100 to be processed into a specific shape Any material can be selected as long as it is not.
또한, 상기 본딩재(120)는, 플런저(100)와 잉곳(200) 간의 결합력을 극대화시킬 수 있도록 상기 플런저(100)와 잉곳(200)의 가장자리 전체에 걸쳐 도포될 수도 있고, 잉곳(200)을 성형틀에 투입시키는 과정에서 잉곳(200)이 일측으로 기울어지거나 틀어지지 아니하는 최소한의 결합력만 유지될 수 있도록 도트 패턴으로 도포될 수도 있다. 즉, 상기 본딩재(120)의 도포 패턴은 플런저(100)와 잉곳(200)의 형상이나 규격, 성형틀의 특성 및 본딩재(120)의 물성 등 여러가지 조건에 따라 다양하게 변경될 수 있다.The bonding material 120 may be applied over the entire edges of the plunger 100 and the ingot 200 to maximize the bonding force between the plunger 100 and the ingot 200, The ingot 200 may be applied in a dot pattern so that the ingot 200 may be tilted to one side or only the minimum bonding force that is not tilted may be maintained. That is, the application pattern of the bonding material 120 may be variously changed according to various conditions such as the shape and size of the plunger 100 and the ingot 200, the characteristics of the mold, and the physical properties of the bonding material 120.
도 5 및 도 6은 본 발명에 의한 잉곳 일체형 일회용 플런저 조립체 제2 실시예의 측면도이다.5 and 6 are side views of a second embodiment of a disposable plunger assembly with an ingot according to the present invention.
성형틀 내측으로 투입된 잉곳(200)을 플런저(100)로 가압할 때, 상기 플런저(100)의 가압 스트로크가 너무 짧으면 잉곳(200)이 정상적인 형상으로 가공되지 못하고, 플런저(100)의 가압스트로크가 너무 길면 잉곳(200)이 과도하게 가압되어 성형틀이나 플런저(100)가 손상될 우려가 있다. 따라서 플런저(100)로 잉곳(200)을 가압할 때에는 사전에 설정된 적정 깊이로 성형틀에 삽입시킴이 바람직한데, 종래에는 상기 플런저(100)가 얼마나 깊이 성형틀에 삽입되었는지를 정확히 알 수 없다는 문제점이 있었다.If the pressing stroke of the plunger 100 is too short, the ingot 200 can not be formed into a normal shape when the ingot 200 introduced into the mold is pressed by the plunger 100, and the pressing stroke of the plunger 100 If the length is too long, the ingot 200 may be excessively pressed and the mold or the plunger 100 may be damaged. Therefore, when the ingot 200 is pressed against the plunger 100, it is preferable to insert the plunger 100 into the forming die at a pre-set proper depth. However, conventionally, it is difficult to know exactly how deeply the plunger 100 is inserted into the forming die .
본 발명에 의한 잉곳 일체형 일회용 플런저 조립체는 상기와 같은 문제점을 해결할 수 있도록 즉, 상기 플런저(100)가 얼마나 깊이 성형틀에 삽입되었는지를 외부에서 육안으로 확인할 수 있도록, 성형틀의 내부로 삽입되는 거리를 표시하는 눈금(130)이 플런저(100)의 외측면에 새겨질 수 있다. 작업자는 상기 눈금(130)을 육안으로 확인하여 프레스의 진행 정도를 육안으로 확인할 수 있게 된다.The disposable plunger assembly according to the present invention is a disposable plunger assembly for disposing the plunger 100 so that the plunger 100 is inserted into the mold so that the plunger 100 can be visually inspected from the outside, The plunger 100 may be provided on the outer surface of the plunger 100. In this case, The worker can visually check the graduations 130 and visually confirm the progress of the press.
이때, 상기 눈금(130)은 잉곳(200)이 결합된 면 즉, 하단면부터 수직으로 새겨지는바, 작업자는 잉곳(200)이 결합된 플런저(100)를 성형틀 내부로 투입시켰을 때 성형틀 외부로 노출되는 눈금(130)을 보고 상기 플런저(100)가 얼마나 깊이 삽입되었는지를 파악할 수 있게 된다.At this time, the scale 130 is vertically engraved from the surface where the ingot 200 is coupled, that is, the bottom surface. When the operator inserts the plunger 100 with the ingot 200 into the mold, It is possible to grasp how deeply the plunger 100 is inserted by observing the scale 130 exposed to the outside.
한편, 상기 눈금(130)은 도 5에 도시된 바와 같이 다수 개의 스트라이프 형상으로 새겨지되, 색상이 교번으로 배열되도록 구성될 수도 있다. 또한, 도 6에 도시된 바와 같이 색상별로 요철을 갖는 구조 즉, 오목과 볼록이 교번으로 배열되는 구조로 구성될 수 있다. 상기 눈금(130)의 형상 및 배열패턴은 본 실시예에 도시된 구조로 한정되지 아니하고 다양하게 변경 적용될 수 있다.The scale 130 may be formed in a plurality of stripe shapes as shown in FIG. 5, and colors may be alternately arranged. Further, as shown in FIG. 6, the structure having irregularities for each color, that is, concave and convex may be alternately arranged. The shape and arrangement pattern of the scale 130 are not limited to the structure shown in this embodiment, and may be variously modified.
도 7은 본 발명에 의한 잉곳 일체형 일회용 플런저 조립체 제3 실시예의 분해도이다.7 is an exploded view of a third embodiment of a disposable plunger assembly according to the present invention.
상기 잉곳(200)이 원통 형상인 경우에는 상기 잉곳(200)을 성형틀 내측으로 투입시킬 때 잉곳(200)의 수직도만 확인하면 충분하지만, 상기 잉곳(200)이 원통 형상이 아닌 경우 즉, 전후 및 좌우 방향을 갖는 형상으로 형성되는 경우, 잉곳(200)의 방향성까지 고려하여 성형틀로 투입해야 한다.In the case where the ingot 200 has a cylindrical shape, it is sufficient to check only the verticality of the ingot 200 when the ingot 200 is inserted into the mold, but when the ingot 200 is not cylindrical, When the ingot 200 is formed in a shape having a front-back direction and a left-right direction, the ingot 200 must be introduced into a molding mold in consideration of the directionality of the ingot.
따라서 잉곳(200)을 플런저(100) 저면에 결합시킬 때 잉곳(200)의 정면과 플런저(100)의 정면을 일치시켜야 하는데, 상기 플런저(100)의 저면과 잉곳(200)의 상면이 상호 평행한 평면 형상으로 제작되는 경우 잉곳(200)의 정면을 플런저(100)의 정면에 일치시키는 작업에 어려움이 있을 수 있다.The front face of the ingot 200 and the front face of the plunger 100 must be aligned when the ingot 200 is coupled to the bottom face of the plunger 100. The bottom face of the plunger 100 and the top face of the ingot 200 are parallel to each other It may be difficult to match the front surface of the ingot 200 to the front surface of the plunger 100. [
따라서 본 발명에 의한 플런저 조립체는, 보다 간편하게 잉곳(200)의 정면을 플런저(100)의 정면과 일치시킬 수 있도록, 상기 플런저(100)의 저면에는 노치(140)가 형성되고, 상기 잉곳(200)의 상면에는 상기 노치(140)가 끼워맞춤 방식으로 삽입되는 안착홈(220)이 형성됨이 바람직하다.The plunger assembly according to the present invention may further include a notch 140 formed on the bottom surface of the plunger 100 so that the front surface of the ingot 200 can be coincided with the front surface of the plunger 100, The seating groove 220 may be formed on the upper surface of the notch 140 so that the notch 140 is inserted in a fitting manner.
이와 같이 플런저(100)의 저면에 노치(140)가 형성되고 잉곳(200)의 상면에 안착홈(220)이 형성되면, 작업자는 플런저(100)의 노치(140)를 잉곳(200)의 안착홈(220)에 안착시키는 조작만으로 플런저(100)의 정면과 잉곳(200)의 정면을 일치시킬 수 있다는 장점이 있다. When the notch 140 is formed on the bottom surface of the plunger 100 and the seating groove 220 is formed on the upper surface of the ingot 200, an operator can insert the notch 140 of the plunger 100 into the seating of the ingot 200 The front face of the plunger 100 and the front face of the ingot 200 can be brought into coincidence with each other only by an operation of resting on the groove 220.
또한, 플런저(100)의 정면과 잉곳(200)의 정면을 일치시켰다 하더라도, 플런저(100)와 잉곳(200)을 결합시키는 과정에서 플런저(100)나 잉곳(200)이 미세하게나마 회전될 수 있다는 문제점이 있다. 그러나 도 6에 도시된 실시예와 같이 플런저(100)의 저면에 형성된 노치(140)가 잉곳(200)의 상면에 형성된 안착홈(220)이 안착되면, 플런저(100)나 잉곳(200)이 독립적으로 회전되지 못하므로, 플런저(100)의 정면과 잉곳(200)의 정면이 틀어지지 아니하게 된다는 장점이 있다.Even if the front face of the plunger 100 is aligned with the front face of the ingot 200, the plunger 100 or the ingot 200 can be finely rotated in the process of joining the plunger 100 and the ingot 200 There is a problem. 6, when the notch 140 formed on the bottom surface of the plunger 100 is seated in the seating groove 220 formed on the upper surface of the ingot 200, the plunger 100 or the ingot 200 There is an advantage that the front face of the plunger 100 and the front face of the ingot 200 are not broken.
이상, 본 발명을 바람직한 실시예를 사용하여 상세히 설명하였으나, 본 발명의 범위는 특정 실시예에 한정되는 것은 아니며, 첨부된 특허청구범위에 의하여 해석되어야 할 것이다. 또한, 이 기술분야에서 통상의 지식을 습득한 자라면, 본 발명의 범위에서 벗어나지 않으면서도 많은 수정과 변형이 가능함을 이해하여야 할 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. It will also be appreciated that many modifications and variations will be apparent to those skilled in the art without departing from the scope of the present invention.
[부호의 설명][Description of Symbols]
100 : 플런저 110 : 챔퍼100: plunger 110: chamfer
120 : 본딩재 130 : 눈금120: bonding material 130: scale
140 : 노치 200 : 잉곳140: Notch 200: Ingot
220 : 안착홈220: seat groove

Claims (7)

  1. 성형틀의 내부로 하향 인입되는 잉곳(200);An ingot 200 which is drawn downward into the mold;
    내화매몰재로 제작되며, 길이방향 일단이 성형틀의 내부로 하향 삽입되어, 상기 성형틀의 내부에 위치하는 잉곳(200)을 치과용 보철물로 가압 성형하는 플런저(100);A plunger (100) made of a refractory investment material and having one end in the longitudinal direction inserted downward into the molding die, and pressing the ingot (200) located inside the molding die into a dental prosthesis;
    를 포함하되,, ≪ / RTI &
    상기 잉곳(200)의 상면은 상기 플런저(100)의 저면에 일체로 결합되는 것을 특징으로 하는 잉곳 일체형 일회용 플런저 조립체.Wherein the upper surface of the ingot (200) is integrally coupled to the bottom surface of the plunger (100).
  2. 청구항 1에 있어서,The method according to claim 1,
    상기 잉곳(200)과 플런저(100)는 지름이 동일한 원통 형상으로 형성되어,The ingot 200 and the plunger 100 are formed into a cylindrical shape having the same diameter,
    상기 잉곳(200)의 상면과 상기 플런저(100)의 저면이 상호 맞닿도록 결합되는 것을 특징으로 하는 잉곳 일체형 일회용 플런저 조립체.Wherein the upper surface of the ingot (200) and the lower surface of the plunger (100) are coupled to each other to be in contact with each other.
  3. 청구항 2에 있어서,The method of claim 2,
    상기 플런저(100)의 저면 가장자리에는 챔퍼(110)가 형성되며,A chamfer 110 is formed at the bottom edge of the plunger 100,
    상기 챔퍼(110)와 상기 잉곳(200)의 상면 사이를 채우도록 도포되어, 상기 잉곳(200)과 플런저(100)를 일체로 결합시키는 본딩재(120)를 더 포함하는 것을 특징으로 하는 잉곳 일체형 일회용 플런저 조립체.Further comprising a bonding material (120) applied to fill the space between the chamfer (110) and the upper surface of the ingot (200) and integrally joining the ingot (200) and the plunger (100) Disposable plunger assembly.
  4. 청구항 3에 있어서,The method of claim 3,
    상기 본딩재(120)는, 상기 플런저(100)와 잉곳(200)의 가장자리 전체에 걸쳐 도포되는 것을 특징으로 하는 잉곳 일체형 일회용 플런저 조립체.Wherein the bonding material (120) is applied over the entire edges of the plunger (100) and the ingot (200).
  5. 청구항 3에 있어서,The method of claim 3,
    상기 본딩재(120)는, 도트 패턴으로 도포되는 것을 특징으로 하는 잉곳 일체형 일회용 플런저 조립체.Wherein the bonding material (120) is applied in a dot pattern.
  6. 청구항 1에 있어서,The method according to claim 1,
    상기 플런저(100)의 외측면에는, 상기 성형틀의 내부로 삽입되는 거리를 표시하는 눈금(130)이 새겨지는 것을 특징으로 하는 잉곳 일체형 일회용 플런저 조립체.Wherein the outer surface of the plunger (100) is engraved with a scale (130) indicative of a distance to be inserted into the forming die.
  7. 청구항 1에 있어서,The method according to claim 1,
    상기 플런저(100)의 저면에는 노치(140)가 형성되고, A notch 140 is formed on the bottom surface of the plunger 100,
    상기 잉곳(200)의 상면에는 상기 노치(140)가 끼워맞춤 방식으로 삽입되는 안착홈(220)이 형성되는 것을 특징으로 하는 잉곳 일체형 일회용 플런저 조립체.Wherein the upper surface of the ingot (200) is formed with a seating groove (220) in which the notch (140) is inserted in a fitting manner.
PCT/KR2018/013054 2017-11-02 2018-10-30 Ingot-integrated disposable plunger assembly WO2019088679A2 (en)

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KR10-2017-0145613 2017-11-02
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US6484791B1 (en) * 1999-11-01 2002-11-26 Jeneric/Pentron, Inc. Plunger for a pressing furnace
DE502007003480D1 (en) * 2007-11-28 2010-05-27 Ivoclar Vivadent Ag Method and system for the production of ceramic dental restorations
EP2550929B1 (en) 2011-07-25 2020-04-01 Ivoclar Vivadent AG Dental furnace with muffle size recognition
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