CN110115637A - A kind of dental case casting method based on peek material - Google Patents
A kind of dental case casting method based on peek material Download PDFInfo
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- CN110115637A CN110115637A CN201910512017.8A CN201910512017A CN110115637A CN 110115637 A CN110115637 A CN 110115637A CN 201910512017 A CN201910512017 A CN 201910512017A CN 110115637 A CN110115637 A CN 110115637A
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- 238000005266 casting Methods 0.000 title claims abstract description 80
- 239000000463 material Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004512 die casting Methods 0.000 claims abstract description 35
- 239000001993 wax Substances 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 239000012188 paraffin wax Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 31
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000006467 substitution reaction Methods 0.000 claims description 6
- 230000002045 lasting effect Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000000155 melt Substances 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 239000004696 Poly ether ether ketone Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229920002530 polyetherether ketone Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 231100000299 mutagenicity Toxicity 0.000 description 1
- 230000007886 mutagenicity Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 230000003827 upregulation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/70—Tooth crowns; Making thereof
- A61C5/77—Methods or devices for making crowns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
Abstract
The invention discloses a kind of dental case casting methods based on peek material, comprise the steps of, step 1: making to dummy wax pattern；Step 2: embedding wax pattern, including using embedding base, embedding cylinder and gasket ring；Step 3: the casting mold that embedding obtains is roasted, until wax pattern and paraffin sprue-way completely burned volatilize to form mold cavity；Step 4: maturing temperature is reduced to 400 DEG C, and is put into founding materials from the opening of mold cavity, keeps 20min；Step 5: casting mold is transferred in die casting machine and carries out die casting；The die casting machine includes the first cylinder end and the second cylinder end, and the second cylinder end coaxially slide is connected to the first cylinder end, and the die casting machine includes the driving mechanism for driving the first cylinder end, the second cylinder end to move towards casting mold.It can effectively improve the castability of casting dummy using this method.
Description
Technical field
The present invention relates to dental prosthesis manufacturing technology fields, more particularly, to a kind of dental case based on peek material
Casting method.
Background technique
Peek(polyether-ether-ketone) it is used as a kind of bio-inert material, it is successfully applied in human medical field for many years.
In dental medical field, BioHPP(high-performance polymer, producer is Bredent company, Germany) it is used as a kind of hypocrystalline thermoplastic
Property peek(polyether-ether-ketone) base enhanced ceramic high-performance polymer, have excellent biocompatibility, no effect is cell-free
The excellent performances such as toxicity, mutagenicity, carcinogenicity are just gradually by the favor of industry.
But peek material, in corona casting process, different from traditional metal material casting, metal material was being cast
Exist in journey and shrink, can be modified by forms such as later period welding when casting unevenness, but peek material can not lead to
Later the phase studies for a second time courses one has flunked, therefore the requirement for casting technique is higher.
Existing corona casting is generally comprised wax pattern preparation, wax pattern is embedded using embedded material and reserves sprue-way, to embedding
Material is roasted so that wax pattern volatilizees to form mold cavity, finally using mold cavity is injected after founding materials fusing, is cast after cooling
Green body is made, casting is completed.In casting process, the cooling meat of founding materials is nearly unavoidable, and shrinks uneven be easy
It will lead to the defects of hardness, density after molding effect is undesirable or molding do not reach requirement.In the prior art, common centrifugal casting
It makes or vacuum pressing and casting cannot all solve the existing above problem very well, or need to be solved by more accurate casting apparatus
Certainly, but high-precision instrument and equipment it is expensive, and height rely on import, cannot be used by universal medium-sized and small enterprises.
A kind of it can effectively improve that weight is repaired in casting and the method for not depending on high-precision instrument unduly is this for this purpose, researching and developing
Problem to be addressed by invention.
Summary of the invention
The object of the present invention is to provide a kind of dental case casting methods based on peek material, can effectively improve casting
It repairs weight and does not depend on high-precision instrument unduly again, use cost is lower.
Above-mentioned purpose of the invention has the technical scheme that a kind of dental restortion based on peek material
Body casting method, comprises the steps of,
Step 1: dummy wax pattern is made；
Step 2: embedding wax pattern, including using embedding base, embedding cylinder and gasket ring, embedding base includes circular base
Seat, cup dolly edge are equipped with axially extending convex edge, are equipped with the protrusion extended towards convex edge extending direction at cup dolly axle center,
Protrusion includes the first cylindrical portion connecting with cup dolly, with the second coaxially connected cylindrical portion of the first cylindrical portion and with second
The coaxially connected semi-spherical portion of cylindrical portion；The diameter of second cylindrical portion is equal to the diameter of semi-spherical portion and straight less than the first cylindrical portion
Diameter；When embedding, paraffin sprue-way is connected in wax pattern, and the other end of paraffin sprue-way is connected to the top of semi-spherical portion；It again will pad
Ring coaxial sleeve is set to the second cylindrical portion and supports and is placed on the step surface formed between the first cylindrical portion and the second cylindrical portion；Again
Embedding cylinder one end is stuck in the inner wall of convex edge, in filling embedded material in embedding cylinder, after embedded material solidification, removes embedding base
Support；
Step 3: the casting mold that embedding obtains is roasted, maturing temperature keeps 1.5h to 880 DEG C, until wax pattern and paraffin
Sprue-way completely burned volatilizees to form mold cavity；The opening of mold cavity is substituted the first column formed by the first cylindrical portion when including embedding
Shape chamber and the second cylinder chamber formed is substituted by the second cylindrical portion and substitutes the funnel chamber formed by semi-spherical portion；
Step 4: maturing temperature is reduced to 400 DEG C, and is put into founding materials from the opening of mold cavity, keeps 20min；Casting
Melt liquid level requires to be placed in the first cylinder chamber after material fusing；
Step 5: casting mold is transferred in die casting machine and carries out die casting；The die casting machine includes the first cylinder end, the first cylindrical end
Internal diameter of the outer diameter of head less than the first cylinder chamber and the internal diameter greater than the second cylinder chamber；Coaxially slide connects in first cylinder end
There is the second cylinder end, the outer diameter of the second cylinder end is less than or equal to the second cylinder chamber internal diameter；The die casting machine includes being used for
The driving mechanism for driving the first cylinder end, the second cylinder end to move towards casting mold；In die casting, the first cylinder end is together with
Two cylinder ends move downward until the first cylinder end contact on gasket ring realize around seal, then from the second cylinder end to
Lower pressure provides lasting pressure to the casting melt in mold cavity, until casting melt cooled and solidified, to complete to cast.
By using above-mentioned technical proposal, in embedding process, wrapped using above-mentioned embedding base and embedding cylinder, gasket ring
It buries, so that embedded material solidifies and the casting mold formed after roasting is formed with the first cylinder chamber, the second cylinder chamber, funnel chamber, and pads
Ring is fixed between the first cylinder chamber and the second cylindrical chamber.When being cast, since liquid level is high after founding materials fusing
Degree is placed in the first cylindrical chamber, when the first cylinder end moves downward conflict to gasket ring, is squeezed by the first cylinder end
Gap of the melt between the first cylinder end and the first cylindricality cavity wall of founding materials ramp up so that the first cylinder
End can contact on gasket ring realize sealing, and gasket ring be prefabricated machine-shaping, can by surface manufacture it is relatively smooth,
Sealing effect is good.And after the first cylinder end and gasket ring support patch sealing, part below the first cylinder end lower end will not mix again
Enter air, then in the case where the second cylinder end is downwardly applied to pressure condition, founding materials can be generated with lasting pressure, until
Founding materials coagulation forming.Compared to existing casting method, can be effectively reduced using this programme empty because being mixed in press casting procedure
Gas and in casting cavity generate stomata the phenomenon that, effectively increase the quality of casting and forming.
The present invention is further arranged to: paraffin sprue-way employed in step 2 is provided at wax pattern 3-5mm and expands
Area.
By using above-mentioned technical proposal, after the volatilization of paraffin sprue-way completely burned, mold cavity is in the substitution position for expanding area
It sets to form liquid storage chamber, when founding materials are shunk, liquid storage chamber can quickly be supplemented retracted position, so that the base that casting obtains
Constitution body is more uniform.
The present invention is further arranged to: the outer diameter of used gasket ring is greater than the first cylindrical portion.
By using above-mentioned technical proposal, when being embedded, gasket ring can be extended radially outward the first column by embedded material
The portion envelops in shape portion, so that the fixed effect of gasket ring is more preferable, and the contact area of gasket ring and embedded material increases, sealing effect
It is good.
The present invention is further arranged to: the gasket ring is coaxially connected with bulge loop towards the side of semi-spherical portion, the bulge loop
Cross section is "T"-shaped.
By using above-mentioned technical proposal, after completing embedding, bulge loop and embedded material form axial limiting function, so that
Gasket ring has better fixed effect and sealing effect.
The present invention is further arranged to: sliding chamber is coaxially arranged in first cylinder end, the top of sliding chamber is internal diameter
Relatively small pressure chamber, sliding chamber lower part is the relatively large slid chamber of internal diameter, because of internal diameter difference between pressure chamber and slid chamber
It is formed with step surface；Second cylinder end includes the forced section for being slidably connected to pressure chamber and the force for being slidably connected to slid chamber
Portion；Pressure chamber, which is equipped with, is connected to external disengaging gas nozzle, passes in and out gas nozzle by hose and is connected with filling device of air；The driving machine
Structure further includes and connect the cylinder for driving the first cylinder end to move up and down above the first cylinder end.
By using above-mentioned technical proposal, when in use, the first cylinder end is driven to move downward and support by cylinder
Densification is encapsulated in gasket ring, then controls the second cylinder end by filling device of air and press can continue to founding materials downwards
Die casting under pressure state.
The present invention is further arranged to: die casting machine described in step 5 further includes sliding sleeve, and sliding sleeve lower end is hatch frame,
The threaded upper ends of sliding sleeve are connected with capping；First cylinder end is slidably connected in sliding sleeve；Sliding sleeve is in capping to the first cylindrical end
Side wall between head is equipped with suction nozzle, and suction nozzle is connected with air charging system by hose；It is set at the axle center of first cylinder end
There is sliding slot, the second cylinder end is slidably connected in sliding slot；The upper end of sliding slot is equipped with sealing plate, and sealing plate is circumferentially with several
Strut；The upper end of support rod is fixedly connected with sealing plate, and the lower end of support rod, which is worn, is connected to the first cylinder end, and extends
The lower end surface of first cylinder end；When casting mold is placed in immediately below the first cylinder end, the position of support rod just with gasket ring
Position it is corresponding；
The upper surface of first cylinder end is equipped with several elastic buckles in sealing plate ambient separation, and elastic buckles are towards sealing plate side wall
Side is equipped with semi-circular projection, and sealing plate side wall is equipped with the arc groove for being embedded in for semi-circular projection；
The die casting machine further includes the regulating mechanism for adjusting sliding sleeve height.
By using above-mentioned technical proposal, in die casting, regulating mechanism is first passed through by sliding sleeve close to casting mold, then by filling
Device of air is inflated into sliding sleeve, air pressure push the first cylinder end, sealing plate, the second cylindrical end first move downward.Casting
The melt liquid level of material is maintained at, and when support rod is contacted with gasket ring, the melt liquid level of the first cylinder end and founding materials is connect
Touching.After support rod is contacted with gasket ring, the first cylinder end is continued slide downward and is sealed until contradicting with gasket ring.It seals at this time
Plate is detached to be jacked up with the snapping of elastic buckles, so that the gap between sealing plate and the first cylinder end is transferred in air pressure enters cunning
Slot generates continuous to founding materials by the second cylinder end, until founding materials to act on the second cylinder end
Cooled and solidified, to complete to cast.
The present invention is further arranged to: the inner wall of the sliding sleeve is equipped with the first limiting section, the upper side of the first cylinder end
Wall is equipped with the cooperation of the first limiting section for preventing the first cylinder end to be detached from the first limited block of sliding sleeve；The inner wall of sliding slot is equipped with
Second limiting section, the top side wall of the second cylinder end are equipped with the cooperation of the second limiting section for preventing the second cylinder end to be detached from
Second limited block of sliding slot.
By using above-mentioned technical proposal, after the completion of casting, capping pressure release is opened, sliding sleeve is improved upwards by regulating mechanism
Position, since the first limited block contacts on the first limiting section, the second limited block is contacted on the second limiting section, by up-regulation
Save the position of sliding sleeve, it may be convenient to peel away the first cylinder end and the second cylinder end from founding materials.
The present invention is further arranged to: the die casting machine further includes pedestal, and pedestal is connected with slide bar, slide bar in sliding sleeve two sides
Upper sliding has mounting plate, and sliding sleeve is fixed on mounting plate；Crossbeam is fixedly connected at the top of slide bar；The regulating mechanism includes spiral shell
Line is connected to the screw rod of crossbeam, and the lower end of screw rod is connected to mounting plate by bearing and bearing block rotation, and the upper end of screw rod is equipped with
Handwheel.
By using above-mentioned technical proposal, it only need to rotate handwheel mounting plate can be driven and be slided on slide bar, to adjust
The place height of sliding sleeve.
The present invention is further arranged to: pedestal is equipped with the positioning ring for fixing casting mold.
By using above-mentioned technical proposal, positioning ring can be positioned casting mold, so that casting mold and the first cylinder end
It realizes coaxial.
In conclusion the present invention compares existing casting method, can effectively reduce due to mixing air in press casting procedure
The phenomenon that stomata is generated in casting cavity, and can be to provide the pressure of duration in press casting procedure, to effectively increase casting
Make molding quality.
Detailed description of the invention
Fig. 1 is the schematic diagram that embodiment one embeds structure；
Fig. 2 is the structural schematic diagram of casting mold after the completion of embodiment one roasts；
Fig. 3 is the schematic diagram after the fusing of one founding materials of embodiment；
Fig. 4 is the structural schematic diagram of one casting machine of embodiment；
Fig. 5 is schematic cross-sectional view of one casting mold of embodiment in casting；
Fig. 6 is the structural schematic diagram of two die casting machine of embodiment；
Fig. 7 is the enlarged diagram of part A in Fig. 6；
Fig. 8 is the enlarged diagram of part B in Fig. 7；
Status diagram when Fig. 9 is two die casting of embodiment.
Description of symbols: 1, wax pattern；2, base is embedded；3, cylinder is embedded；4, gasket ring；5, cup dolly；6, convex edge；7,
One cylindrical portion；8, the second cylindrical portion；9, semi-spherical portion；10, paraffin sprue-way；11, area is expanded；12, bulge loop；13, the first cylinder chamber；
14, the second cylinder chamber；15, funnel chamber；16, the first cylinder end；17, the second cylinder end；18, cylinder；19, pressure chamber；20,
Slid chamber；21, forced section；22, force section；23, gas nozzle is passed in and out；24, filling device of air；25, mold cavity；26, founding materials；
27, sliding sleeve；28, it covers；29, suction nozzle；30, air charging system；31, sliding slot；32, sealing plate；33, support rod；34, elastic buckles；
35, semi-circular projection；36, arc groove；37, the first limiting section；38, the first limited block；39, the second limiting section；40, the second limit
Block；41, pedestal；42, positioning ring；43, slide bar；44, mounting plate；45, handwheel；46, crossbeam；47, screw rod.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Embodiment: a kind of dental case casting method based on peek material, founding materials 26 are poly- for BioHPP(high-performance
Object is closed, producer is Bredent company, Germany) a kind of peek(polyether-ether-ketone of semi-crystalline thermoplastic) the high property of base enhanced ceramic
Energy polymer, casting process comprise the steps of:
Step 1 makes dummy wax pattern 1；
Step 2 embeds wax pattern 1, as shown in Figure 1, including embedding cylinder 3 using made of embedding base 2, metal material
And gasket ring 4, embedding base 2 include cup dolly 5,5 edge of cup dolly is equipped with axially extending convex edge 6,5 axis of cup dolly
The protrusion extended towards 6 extending direction of convex edge is equipped at the heart, protrusion includes the first cylindrical portion 7 connecting with cup dolly 5 and first
The second coaxially connected cylindrical portion 8 of cylindrical portion 7 and the semi-spherical portion 9 coaxially connected with the second cylindrical portion 8；Second cylindrical portion 8
Diameter is equal to the diameter of semi-spherical portion 9 and less than the diameter of the first cylindrical portion 7.
When embedding, paraffin sprue-way 10 is first connected in wax pattern 1, and the other end of paraffin sprue-way 10 is connected to semi-spherical portion 9
Top；Used paraffin sprue-way 10 is provided at wax pattern 13-5mm expands area 11.4 coaxial sleeve of gasket ring is set to the again
Two cylindrical portions 8 and support be placed on the step surface formed between the first cylindrical portion 7 and the second cylindrical portion 8；Cylinder 3 one will be embedded again
End is stuck in the inner wall of convex edge 6, and in filling embedded material in embedding cylinder 3, embedded material uses Phosphatic Ceramic Embedding Material, material to be embedded
After material solidification, embedding base 2 is removed.It embeds cylinder 3 and gasket ring 4 is metal material, not removed after embedding.Wherein, it is used
The outer diameter of gasket ring 4 is greater than the first cylindrical portion, and gasket ring 4 is coaxially connected with bulge loop 12, the bulge loop 12 towards the side of semi-spherical portion 9
Cross section be it is "T"-shaped.
Step 3 roasts the casting mold that embedding obtains, and roasting process includes the low temperature baking and later period high temperature at initial stage
Two stages are roasted, in the early stage cold stage, in order to facilitate the outflow of 1 material of wax pattern, casting gate should be put downwards 30min.
Hot stage after 30min should put upwards the casting gate of casting mold, so that the wax pattern 1 in embedded material is volatilized completely；
In hot stage, maturing temperature keeps 1.5h to 880 DEG C, until wax pattern 1 and 10 completely burned of paraffin sprue-way volatilize and to form casting
Die cavity 25.As shown in connection with fig. 2, the first cylinder chamber formed is substituted by the first cylindrical portion 7 when the opening of mold cavity 25 includes embedding
13 and by the second cylindrical portion 8 the second cylinder chamber 14 for being formed of substitution and the funnel chamber 15 formed by the substitution of semi-spherical portion 9.
Step 4 as shown in figure 3, maturing temperature is reduced to 400 DEG C, and is put into founding materials from the opening of mold cavity 25
26, keep 20min；Melt liquid level requires to be placed in the first cylinder chamber 13 after founding materials 26 melt.
Step 5 carries out die casting as shown in figure 4, casting mold is transferred in die casting machine；The die casting machine includes the first cylinder
End 16, internal diameter of the outer diameter less than the first cylinder chamber 13 and the internal diameter greater than the second cylinder chamber 14 of the first cylinder end 16；The
Coaxially slide is connected with the second cylinder end 17 in one cylinder end 16, and the outer diameter of the second cylinder end 17 is less than or equal to second
14 internal diameter of cylinder chamber；The die casting machine includes the drive for driving the first cylinder end 16, the second cylinder end 17 to move up and down
Motivation structure.The driving mechanism includes the cylinder 18 for being connected to 16 top of the first cylinder end and being fixed in rack.In addition, first
Sliding chamber is coaxially arranged in cylinder end 16, the top of sliding chamber is the relatively small pressure chamber 19 of internal diameter, and sliding chamber lower part is internal diameter
Relatively large slid chamber 20, is formed with step surface because difference in internal diameters is different between pressure chamber 19 and slid chamber 20；Second cylinder end
17 include being slidably connected to the forced section 21 of pressure chamber 19 and being slidably connected to the force section 22 of slid chamber 20.Pressure chamber 19 is equipped with
It is connected to external disengaging gas nozzle 23, gas nozzle 23 is passed in and out by hose and is connected with filling device of air 24.Filling device of air 24 can be with
It is realized by air pump, is evacuated by air pump so that negative pressure is formed in pressure chamber 19, so that the second cylinder end 17 is fixed
It is intracavitary in cunning and limited by the step surface between force section 22 and pressure chamber 19 and slid chamber 20.It is round to second when needing
When styletable head 17 presses outward, then by air pump injecting compressed air into pressure chamber 19, to push the second cylinder end 17.
Air pump can select an aspiration pump and an inflator pump, and switch in connecting solenoid directional control valve on hose.It needs to illustrate
, filling device of air 24 is a kind of preferred embodiment of the invention using the above scheme, can also use and in the prior art may be used
To realize that the other way of inflation and air suction function substitutes.
As shown in figure 5, the first cylinder end 16 is moved downward together with the second cylinder end 17 until the first circle in die casting
Styletable head 16, which contacts on gasket ring 4, realizes that surrounding seals, then is pressed to the casting in mold cavity 25 downwards by the second cylinder end 17
It makes melt and lasting pressure is provided, until casting melt cooled and solidified, to complete to cast.
Embodiment two: as shown in Figure 6,7, the difference with embodiment one is, the die casting machine of use is different, the die casting machine
Including the first cylinder end 16, the outer diameter of the first cylinder end 16 less than the first cylinder chamber 13 internal diameter and be greater than the second cylinder chamber
14 internal diameter；Coaxially slide is connected with the second cylinder end 17 in first cylinder end 16, and the outer diameter of the second cylinder end 17 is small
In or equal to 14 internal diameter of the second cylinder chamber；The die casting machine includes for driving the first cylinder end 16, the second cylinder end 17
The driving mechanism moved towards casting mold.The driving mechanism includes sliding sleeve 27, and 27 lower end of sliding sleeve is hatch frame, the upper end spiral shell of sliding sleeve 27
Line is connected with capping 28.First cylinder end 16 is slidably connected in sliding sleeve 27.Sliding sleeve 27 is in 28 to the first cylinder ends of capping
Side wall between 16 is equipped with suction nozzle 29, and suction nozzle 29 is connected with air charging system 30 by hose.Air charging system 30 can be
Inflator pump or the mechanism that can be inflated in the prior art.Sliding slot 31, the second circle are equipped at the axle center of first cylinder end 16
Styletable head 17 is slidably connected in sliding slot 31.The upper end of sliding slot 31 is equipped with sealing plate 32, and sealing plate 32 is circumferentially with several supports
Bar 33.The upper end of support rod 33 is fixedly connected with sealing plate 32, and the lower end of support rod 33, which is worn, is connected to the first cylinder end 16,
And extend the lower end surface of the first cylinder end 16.When casting mold is placed in the first 16 underface of cylinder end, support rod 33
Position is just corresponding with the position of gasket ring 4.
As shown in figure 8, the upper surface of the first cylinder end 16 is equipped with several elastic buckles 34, bullet in 32 ambient separation of sealing plate
Property button 34 towards 32 side wall of sealing plate side be equipped with semi-circular projection 35,32 side wall of sealing plate be equipped with for embedding for semi-circular projection 35
The arc groove 36 entered.When sealing plate 32, which fits in 16 upper surface of the first cylinder end, seals sliding slot 31, semi-circular projection 35 is just
It is embedded in arc groove 36 well, and support rod 33 extends downwardly out the lower end surface of the first cylinder end 16.
As shown in fig. 7, the inner wall of sliding sleeve 27 is equipped with the first limiting section 37, the top side wall of the first cylinder end 16 be equipped with
The cooperation of first limiting section 37 is for preventing the first cylinder end 16 to be detached from the first limited block 38 of sliding sleeve 27.The inner wall of sliding slot 31 is set
There is the second limiting section 39, the top side wall of the second cylinder end 17, which is equipped with, to be cooperated with the second limiting section 39 for preventing the second cylinder
Second limited block 40 of the disengaging of end 17 sliding slot 31.
As shown in fig. 6, the die casting machine further includes pedestal 41 and the regulating mechanism for adjusting 27 height of sliding sleeve, on pedestal 41
Equipped with the positioning ring 42 for fixing casting mold.Regulating mechanism includes the slide bar 43 positioned at 42 two sides of positioning ring, is slided on slide bar 43
There is mounting plate 44, sliding sleeve 27 is fixed on mounting plate 44.The top of slide bar 43 is fixedly connected with crossbeam 46, and screw thread connects on crossbeam 46
It is connected to screw rod 47, the lower end of screw rod 47 is connected to mounting plate 44 by bearing and bearing block rotation, and the upper end of screw rod 47 is equipped with hand
Wheel 45.
As shown in figure 9, the second cylinder end 17 is fixed by the frictional force between sliding slot 31 when not carrying out die casting, the
One cylinder end 16 is fixed by the frictional force between sliding sleeve 27.Preferably, the first cylinder end 16 and the second cylinder end
17 place of being slidably connected is equipped with rubber piston set, can be kept fixed under no external force.In die casting, adjusting is first passed through
Mechanism close to casting mold, then inflates sliding sleeve 27 by air charging system 30 into sliding sleeve 27, the first cylinder end 16 of air pressure promotion,
Sealing plate 32, the second cylinder end 17 move downwardly together.The melt liquid level of founding materials 26 is maintained at, when support rod 33 and pad
When ring 4 contacts, the melt fluid level contacts of the first cylinder end 16 and founding materials 26.After support rod 33 is contacted with gasket ring 4,
Continue slide downward and sealed until being contradicted with gasket ring 4 in the first cylinder end 16.Sealing plate 32 is detached from the button with elastic buckles 34 at this time
It connects and is jacked up, so that the gap between sealing plate 32 and the first cylinder end 16 is transferred in air pressure enters sliding slot 31, to act on
In the second cylinder end 17, continuous is generated to founding materials 26 by the second cylinder end 17, until founding materials 26 are cold
But it solidifies, to complete to cast.After the completion of castings, 28 pressure releases of capping are opened, 27 position of sliding sleeve is improved upwards by regulating mechanism,
Since the first limited block 38 contacts on the first limiting section 37, the second limited block 40 is contacted on the second limiting section 39, pass through to
The upper position for adjusting sliding sleeve 27, it may be convenient to shell the first cylinder end 16 and the second cylinder end 17 from founding materials 26
It leaves and.Next time in use, open capping 28, first by sealing plate 32 push back with 34 closed position of elastic buckles, and by second circle
It is concordant with the first cylinder end 16 that styletable head 17 is pushed into lower surface, then the first cylinder end 16 is pushed into lower surface and sliding sleeve 27 is flat
It is neat.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of dental case casting method based on peek material, it is characterised in that: it comprises the steps of,
Step 1: dummy wax pattern (1) is made；
Step 2: embedding wax pattern (1), including using embedding base (2), embedding cylinder (3) and gasket ring (4), embeds base
Support (2) includes cup dolly (5), and cup dolly (5) edge is equipped with axially extending convex edge (6), sets at cup dolly (5) axle center
There is the protrusion extended towards convex edge (6) extending direction, protrusion includes the first cylindrical portion (7) connecting with cup dolly (5) and first
Coaxially connected the second cylindrical portion (8) of cylindrical portion (7) and the semi-spherical portion (9) coaxially connected with the second cylindrical portion (8)；Second circle
The diameter in column portion (8) is equal to the diameter of semi-spherical portion (9) and less than the diameter of the first cylindrical portion (7)；When embedding, on wax pattern (1)
It connects paraffin sprue-way (10), and the other end of paraffin sprue-way (10) is connected to the top of semi-spherical portion (9)；It is again that gasket ring (4) is same
Axle sleeve, which is set to the second cylindrical portion (8) and supports, is placed in the step surface formed between the first cylindrical portion (7) and the second cylindrical portion (8)
On；The inner wall that cylinder (3) one end is stuck in convex edge (6) will be embedded again, it is solidifying to embedded material in filling embedded material in embedding cylinder (3)
After Gu, embedding base (2) is removed；
Step 3: the obtained casting mold of embedding is roasted, and maturing temperature keeps 1.5h to 880 DEG C, until wax pattern (1) and
Paraffin sprue-way (10) completely burned volatilizees to form mold cavity (25)；By the first cylindrical portion when the opening of mold cavity (25) includes embedding
(7) substitution is formed the first cylinder chamber (13) and by the second cylindrical portion (8) second cylinder chamber (14) for being formed of substitution and by
The funnel chamber (15) that semi-spherical portion (9) substitution is formed；
Step 4: being reduced to 400 DEG C for maturing temperature, and be put into founding materials (26) from the opening of mold cavity (25), keeps
20min；Melt liquid level requires to be placed in the first cylinder chamber (13) after founding materials (26) fusing；
Step 5: casting mold is transferred in die casting machine and carries out die casting；The die casting machine includes the first cylinder end (16), the first circle
Internal diameter of the outer diameter of styletable head (16) less than the first cylinder chamber (13) and the internal diameter greater than the second cylinder chamber (14)；First cylindrical end
Head (16) interior coaxially slide is connected with the second cylinder end (17), and the outer diameter of the second cylinder end (17) is less than or equal to the second column
Shape chamber (14) internal diameter；The die casting machine includes for driving the first cylinder end (16), the second cylinder end (17) to transport towards casting mold
Dynamic driving mechanism；In die casting, the first cylinder end (16) is moved downward together with the second cylinder end (17) until the first circle
Styletable head (16), which contacts on gasket ring (4), realizes that surrounding seals, then is pressed to mold cavity downwards by the second cylinder end (17)
(25) the casting melt in provides lasting pressure, until casting melt cooled and solidified, to complete to cast.
2. a kind of dental case casting method based on peek material according to claim 1, it is characterised in that: step 2
Employed in paraffin sprue-way (10) be provided at wax pattern (1) 3-5mm and expand area (11).
3. a kind of dental case casting method based on peek material according to claim 1, it is characterised in that: used
The outer diameter of gasket ring (4) is greater than the first cylindrical portion.
4. a kind of dental case casting method based on peek material according to claim 3, it is characterised in that: the pad
Ring (4) is coaxially connected with bulge loop (12) towards the side of semi-spherical portion (9), and the cross section of the bulge loop (12) is "T"-shaped.
5. a kind of dental case casting method based on peek material according to claim 1, it is characterised in that: described
Sliding chamber is coaxially arranged in one cylinder end (16), the top of sliding chamber is the relatively small pressure chamber of internal diameter (19), sliding chamber lower part
For the relatively large slid chamber of internal diameter (20), step surface is formed with because difference in internal diameters is different between pressure chamber (19) and slid chamber (20)；
Second cylinder end (17) includes being slidably connected to the forced section (21) of pressure chamber (19) and being slidably connected to slid chamber (20)
Force section (22)；Pressure chamber (19), which is equipped with, is connected to external disengaging gas nozzle (23), and disengaging gas nozzle (23) is connected with by hose
Filling device of air (24)；The driving mechanism further includes and is connect above the first cylinder end (16) for driving the first cylindrical end
The cylinder (18) that head (16) moves up and down.
6. a kind of dental case casting method based on peek material according to claim 1, it is characterised in that: step 5
Described in die casting machine further include sliding sleeve (27), sliding sleeve (27) lower end is hatch frame, and the threaded upper ends of sliding sleeve (27) are connected with
It covers (28)；First cylinder end (16) is slidably connected in sliding sleeve (27)；Sliding sleeve (27) is in capping (28) to the first cylindrical end
Side wall between head (16) is equipped with suction nozzle (29), and suction nozzle (29) is connected with air charging system (30) by hose；First circle
Sliding slot (31) are equipped at the axle center of styletable head (16), the second cylinder end (17) is slidably connected in sliding slot (31)；Sliding slot (31)
Upper end be equipped with sealing plate (32), sealing plate (32) is circumferentially with several support rods (33)；The upper end of support rod (33) and sealing
Plate (32) is fixedly connected, and the lower end of support rod (33), which is worn, is connected to the first cylinder end (16), and extends the first cylindrical end
The lower end surface of head (16)；When casting mold is placed in immediately below the first cylinder end (16), the position of support rod (33) just with pad
The position of ring (4) is corresponding；
The upper surface of first cylinder end (16) is equipped with several elastic buckles (34) in sealing plate (32) ambient separation, elastic buckles (34)
Side towards sealing plate (32) side wall is equipped with semi-circular projection (35), and sealing plate (32) side wall is equipped with for for semi-circular projection (35)
The arc groove (36) of insertion；
The die casting machine further includes the regulating mechanism for adjusting sliding sleeve (27) height.
7. a kind of dental case casting method based on peek material according to claim 6, it is characterised in that: the cunning
The inner wall for covering (27) is equipped with the first limiting section (37), and the top side wall of the first cylinder end (16) is equipped with and the first limiting section (37)
Cooperate the first limited block (38) for preventing the first cylinder end (16) to be detached from sliding sleeve (27)；The inner wall of sliding slot (31) is equipped with the
Two limiting sections (39), the top side wall of the second cylinder end (17) are equipped with the second limiting section (39) cooperation for preventing the second circle
Styletable head (17) is detached from second limited block (40) of sliding slot (31).
8. a kind of dental case casting method based on peek material according to claim 6 or 7, it is characterised in that: institute
Stating die casting machine further includes pedestal (41), and pedestal (41) is connected with slide bar (43) in sliding sleeve (27) two sides, and sliding on slide bar (43) has
Mounting plate (44), sliding sleeve (27) are fixed on mounting plate (44)；Crossbeam (46) are fixedly connected at the top of slide bar (43)；The tune
Section mechanism includes the screw rod (47) for being threadedly connected to crossbeam (46), and the lower end of screw rod (47) passes through bearing and bearing block rotation connection
In mounting plate (44), the upper end of screw rod (47) is equipped with handwheel (45).
9. a kind of dental case casting method based on peek material according to claim 8, it is characterised in that: pedestal
(41) it is equipped with the positioning ring (42) for fixing casting mold.
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|---|---|---|---|
| CN201910512017.8A CN110115637B (en) | 2019-06-13 | 2019-06-13 | Dental prosthesis casting method based on peek material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910512017.8A CN110115637B (en) | 2019-06-13 | 2019-06-13 | Dental prosthesis casting method based on peek material |
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| CN110115637B CN110115637B (en) | 2020-11-06 |
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| JPH04126143A (en) * | 1990-09-17 | 1992-04-27 | Nippon Electric Glass Co Ltd | Manufacture of artificial crown |
| EP0601980A1 (en) * | 1992-12-10 | 1994-06-15 | Santo Palazzolo | Process for the rapid production of a denture duplicate for temporary use and product obtained thereby |
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|---|---|
| CN110115637B (en) | 2020-11-06 |
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Address after: 350026 3rd floor, HENGFA building, no.861, Panyu Road, Gaishan Town, Cangshan District, Fuzhou City, Fujian Province Patentee after: Fuzhou Zhongsheng Chenggong Medical Technology Co.,Ltd. Address before: 350026 3rd floor, HENGFA building, no.861, Panyu Road, Gaishan Town, Cangshan District, Fuzhou City, Fujian Province Patentee before: Fuzhou Rongcheng Successful Denture Manufacturing Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A casting method for dental restorations based on peek materials Granted publication date: 20201106 Pledgee: Fujian Strait Bank Co.,Ltd. Fuzhou Guangda Branch Pledgor: Fuzhou Zhongsheng Chenggong Medical Technology Co.,Ltd. Registration number: Y2024980013948 |