WO2023001751A1 - Vorrichtung zum herstellen und sintern eines dentalen werkstücks - Google Patents
Vorrichtung zum herstellen und sintern eines dentalen werkstücks Download PDFInfo
- Publication number
- WO2023001751A1 WO2023001751A1 PCT/EP2022/070045 EP2022070045W WO2023001751A1 WO 2023001751 A1 WO2023001751 A1 WO 2023001751A1 EP 2022070045 W EP2022070045 W EP 2022070045W WO 2023001751 A1 WO2023001751 A1 WO 2023001751A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blank
- sintering
- sintering furnace
- transport
- machining
- Prior art date
Links
- 238000005245 sintering Methods 0.000 title claims abstract description 91
- 238000003754 machining Methods 0.000 claims abstract description 30
- 238000003801 milling Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 27
- 238000012545 processing Methods 0.000 claims description 25
- 238000003860 storage Methods 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/02—Furnaces of a kind not covered by any preceding group specially designed for laboratory use
- F27B17/025—Furnaces of a kind not covered by any preceding group specially designed for laboratory use for dental workpieces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/02—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated of multiple-chamber type
-
- 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
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0022—Blanks or green, unfinished dental restoration parts
-
- 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
-
- 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
- A61C13/34—Making or working of models, e.g. preliminary castings, trial dentures; Dowel pins [4]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
- F27B5/12—Arrangement of devices for charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/06—Charging or discharging machines on travelling carriages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D5/00—Supports, screens, or the like for the charge within the furnace
- F27D5/0043—Supports specially adapted for dental prosthesis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0012—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy
Definitions
- the invention relates to a device for producing and sintering a dental workpiece from a blank, with a processing device for machining the blank and a sintering furnace for sintering the processed blank, and a method for producing and sintering a dental workpiece from a blank, preferably by means of a such device.
- dental workpieces are usually first machined in a machining device.
- the machined blanks are then removed by a user, possibly reworked, put into a sintering furnace and then sintered in the sintering furnace. After the sintering step, post-processing steps may also be required.
- the desired properties of the dental workpiece can also be achieved without post-processing steps.
- the procedure known from the prior art for manufacturing dental workpieces represents a time-consuming and cost-intensive variant.
- the object of the present invention is to specify an improved device for producing and sintering a dental workpiece from a blank compared to the prior art and an improved method for producing and sintering a dental workpiece from a blank, preferably by means of such a device.
- a transport device for transporting the processed blank from the processing device into the sintering furnace, a common housing for the processing device and the sintering furnace and a rail system fastened to the housing are therefore provided.
- a self-contained system for the automated manufacture of a dental workpiece from a blank can be provided in a simple manner.
- a gripping device facilitates the handling of a blank within the device.
- the gripping device is movably mounted on the rail system.
- a processed blank can thus be removed from the processing device via the gripping device, the gripping device with the received blank can be conveyed via the rail system into the area of a sintering furnace and the processed blank can be deposited in this.
- the gripping device can be operated pneumatically, electrically and/or hydraulically. Particularly in the case of a pneumatically operated gripping device, rapid movements of the gripping device are ensured with sufficient force for securely gripping the blank.
- the sintering furnace can have a sintering furnace space formed in the housing with an opening and a furnace door that can be moved, preferably vertically, relative to the housing, for closing the sintering furnace.
- the introduction of the processed blank into the sintering furnace space and the closing of the sintering furnace can be carried out in a single step.
- the blank is placed on the furnace door, which is then moved relative to the housing in such a way that the blank is arranged on the furnace door in the sintering furnace space and the furnace door closes the opening in the sintering furnace space and therefore the sintering furnace.
- the transport device can have a transport container, preferably in the form of a shell or bowl, in which the machined blank can be placed and transported.
- the machined blank can thus be simply placed in the transport container by the machining device and does not have to be laboriously removed from the machining device.
- the transport vessel can also be filled with loose material, for example with ceramic sand.
- loose material for example with ceramic sand.
- the transport vessel can consist of a porous material, preferably porous ceramic.
- ceramic is advantageous because ceramic is temperature-resistant at high temperatures and can therefore also survive a sintering process without damage.
- a control and/or regulation unit for jointly controlling and/or regulating the processing device, the transport device and the sintering furnace, the device being able to be controlled and/or regulated via the control and/or regulation unit in such a way that the device is operable in a processing mode, a transport mode and a sintering mode.
- the individual processes can be controlled and/or regulated via the control and/or regulation unit.
- the machining device In a machining mode, the machining device can be controlled and/or regulated via the control and/or regulation unit, so that it correspondingly machines a blank in a metal-cutting process.
- the transport of the machined blank from the machining device into the sintering furnace or else a blank into a machining device is controlled and/or regulated.
- the sintering furnace is controlled and/or regulated.
- the interaction of the individual processes can be controlled and/or regulated via the control and/or regulating unit, which makes it possible to automate an entire manufacturing process for a dental workpiece.
- sintering parameters for retrieval in a sintering mode and/or model parameters, preferably of a dental workpiece, for retrieval in a machining mode are stored in the control and/or regulation unit.
- the control and/or regulation unit can control and/or regulate a device according to the required specifications on the basis of these sintering parameters or the models.
- the sintering parameters can include, for example, temperature curves or other data important for a sintering process.
- the model parameters can on the one hand be a model itself, for example a three-dimensional model of the dental workpiece to be manufactured, but also data associated with this model such as various material parameters.
- the model parameters can also include data that is necessary for processing the model, such as feeds and speeds if the processing device has a milling machine.
- any data relevant to a machining or sintering process can be stored in the sinter or model parameters.
- transport parameters are provided, which include data relevant to the transport device.
- the device has a storage device for storing a large number of blanks.
- a storage device can be easily integrated into a device according to the invention.
- the blank can be removed from the storage device via the gripping device.
- the blank is transported by means of the transport device from a storage device into the machining device.
- the machined blank is placed in a transport container, preferably in the form of a dish or bowl, for transport to the sintering furnace, there is no need to laboriously remove the machined blank from the machining device.
- a dental workpiece can be removed from the sintering furnace after the processed blank has been sintered by means of a sintering furnace.
- FIG. 1 shows a schematic, perspective view of a device according to the invention
- FIG. 2 shows a schematic front view of a device according to the invention, 3a-b schematic, perspective representations of a first step of a method according to the invention,
- FIG. 1 shows a schematic, perspective view of a device 1 according to the invention.
- a housing 5 can be seen, in which the processing device 3 and the sintering furnace 4 are arranged.
- a housing door 5a is provided on the housing 5 for closing the housing 5 during a machining and/or sintering process.
- no storage device 9 is provided.
- FIG. 2 shows a schematic front view of a device 1 according to the invention. It can be seen that the processing device 3 is designed in the form of a milling machine. In this case, a tool drive 3a is provided, via which a
- Tool 3b can be driven.
- the tool drive 3a can move in space and/or be pivoted and also have a coolant supply 3d for cooling the tool 3b.
- a coolant supply 3d for cooling the tool 3b.
- other forms of processing devices 3 are also conceivable.
- a clamping device 3c can also be seen, in which a blank 2a to be machined can be clamped. It is also conceivable that the clamping device 3c can move in space and/or be pivoted.
- a transport device 6 has a rail system 6a along which a gripping device 7 can be moved.
- the transport system 6 also includes a transport vessel 6b, in which a machined blank 2a can be placed.
- the transport container 6b is placed on an oven door 4c.
- the oven door 4c can be moved vertically via a rail 4d.
- Figures 3a to 3b show schematic, perspective representations of a first step of a method according to the invention, namely the introduction and processing of a blank 2a in a processing device 3.
- a blank 2a can be seen in FIG. 3a, which was removed by a gripping device 7 from a storage device 9 (not shown).
- the blank 2a is arranged in an intermediate adapter 10 for easier handling.
- the gripping device 7 has two gripping arms 7a, which are designed in such a way that they can optimally grip the intermediate adapter 10.
- the blank 2a together with the intermediate adapter 10, is clamped in a clamping device 3c of the processing device 3.
- a coolant supply 3d can also be seen. In this state, the blank 2a can be machined.
- Figures 4a to 4e show schematic, perspective representations of a second step of a method according to the invention, i.e. the transport of a processed blank 2a from the processing device 3 into the sintering furnace 4.
- FIG. 4 shows a transport tray 6b which is arranged below the clamping device 3c.
- the transport tray 6b is also connected to an intermediate adapter 10, so that the gripping arms 7a of the gripping device 7 can accommodate the transport tray 6b.
- FIG. 4a the machined blank 2a has already been placed in the transport container 6b, but the machined blank 2b is not shown.
- FIG. 4b shows how the machined blank 2b is transported in the transport vessel 6b by means of the transport device 6 and the gripping device 7 into the area of the sintering furnace 4.
- the oven door 4c is open.
- FIG. 4c shows how the transport container 6b is placed on the oven door 4c
- FIG. 4d shows how the transport container 6b is arranged after it has been placed on the oven door 4c. It can be seen that the transport vessel 6b is detached from the intermediate adapter 10. This would be adversely affected by the high temperatures during a sintering process.
- FIG. 4e also shows how the gripping device 7 moves out of the sintering furnace and back in the direction of a starting position at the storage device 9.
- FIGS. 5a to 5c show schematic perspective representations of a third step of a method according to the invention, namely the sintering process.
- FIG. 5a shows how the furnace door 4c, together with the transport container 6a and the machined blank 2a placed therein, moves vertically into a sintering furnace chamber 4a.
- FIG. 5b the transport vessel 6a with the machined blank 2a placed therein is completely arranged in the sintering furnace chamber 4a.
- the oven door 4c closes an opening 4b of the Sintering furnace chamber 4a, through which the transport vessel 6b was introduced into the sintering furnace chamber 4a.
- FIG. 5c shows the device 1 after a sintering process.
- the oven door 4c is open again.
- the dental workpiece 2 can now be removed from the transport container 6b, which again is not visible. After removing the dental workpiece 2, the process can start again from the beginning.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Mechanical Engineering (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Epidemiology (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Clinical Laboratory Science (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112022003604.4T DE112022003604A5 (de) | 2021-07-20 | 2022-07-18 | Vorrichtung zum herstellen und sintern eines dentalen werkstücks |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50602/2021 | 2021-07-20 | ||
ATA50602/2021A AT525303B1 (de) | 2021-07-20 | 2021-07-20 | Vorrichtung zum Herstellen und Sintern eines dentalen Werkstücks |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023001751A1 true WO2023001751A1 (de) | 2023-01-26 |
Family
ID=82851523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/070045 WO2023001751A1 (de) | 2021-07-20 | 2022-07-18 | Vorrichtung zum herstellen und sintern eines dentalen werkstücks |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT525303B1 (de) |
DE (1) | DE112022003604A5 (de) |
WO (1) | WO2023001751A1 (de) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190130596A1 (en) * | 2017-11-01 | 2019-05-02 | James R. Glidewell Dental Ceramics, Inc. | Systems and Methods for Tracking Manufactured Articles During Transfer Operations |
WO2020189745A1 (ja) * | 2019-03-20 | 2020-09-24 | クラレノリタケデンタル株式会社 | 歯科用補綴物の着色装置、加工装置及び着色方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10470853B2 (en) * | 2015-12-03 | 2019-11-12 | James R. Glidewell Dental Ceramics, Inc. | Continuous custom dental restoration manufacturing process and system |
EP4052678A4 (de) * | 2019-10-30 | 2023-08-02 | Promedent CAD-CAM, S.L.U. | Hybridverfahren zur herstellung von dentalverbindungen mittels sintern und fräsen |
-
2021
- 2021-07-20 AT ATA50602/2021A patent/AT525303B1/de active
-
2022
- 2022-07-18 WO PCT/EP2022/070045 patent/WO2023001751A1/de active Application Filing
- 2022-07-18 DE DE112022003604.4T patent/DE112022003604A5/de active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190130596A1 (en) * | 2017-11-01 | 2019-05-02 | James R. Glidewell Dental Ceramics, Inc. | Systems and Methods for Tracking Manufactured Articles During Transfer Operations |
WO2020189745A1 (ja) * | 2019-03-20 | 2020-09-24 | クラレノリタケデンタル株式会社 | 歯科用補綴物の着色装置、加工装置及び着色方法 |
Also Published As
Publication number | Publication date |
---|---|
AT525303A1 (de) | 2023-02-15 |
AT525303B1 (de) | 2023-05-15 |
DE112022003604A5 (de) | 2024-05-02 |
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