CN107618092B - A kind of ceramics 3D printing material rapid solidification device - Google Patents
A kind of ceramics 3D printing material rapid solidification device Download PDFInfo
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- CN107618092B CN107618092B CN201710986897.3A CN201710986897A CN107618092B CN 107618092 B CN107618092 B CN 107618092B CN 201710986897 A CN201710986897 A CN 201710986897A CN 107618092 B CN107618092 B CN 107618092B
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- 239000000463 materials Substances 0.000 title claims abstract description 52
- 239000000919 ceramics Substances 0.000 title claims abstract description 46
- 238000010146 3D printing Methods 0.000 title claims abstract description 26
- 238000007712 rapid solidification Methods 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 239000004065 semiconductors Substances 0.000 claims abstract description 27
- 238000007599 discharging Methods 0.000 claims abstract description 18
- 230000000875 corresponding Effects 0.000 claims abstract description 14
- 239000011499 joint compounds Substances 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 11
- 238000005057 refrigeration Methods 0.000 claims description 8
- 230000002093 peripheral Effects 0.000 claims description 3
- 239000002002 slurries Substances 0.000 abstract description 35
- 238000001704 evaporation Methods 0.000 abstract description 8
- 239000010410 layers Substances 0.000 description 8
- 238000007639 printing Methods 0.000 description 8
- 238000007711 solidification Methods 0.000 description 8
- 238000000034 methods Methods 0.000 description 7
- 238000000465 moulding Methods 0.000 description 6
- 238000010586 diagrams Methods 0.000 description 4
- 239000000725 suspensions Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000010009 beating Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 229910010293 ceramic materials Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering processes Methods 0.000 description 2
- 239000007789 gases Substances 0.000 description 2
- 239000007788 liquids Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- -1 that is Substances 0.000 description 2
- 239000011901 water Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000002131 composite materials Substances 0.000 description 1
- 230000001276 controlling effects Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000686 essences Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reactions Methods 0.000 description 1
- 239000002994 raw materials Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011343 solid materials Substances 0.000 description 1
- 239000007787 solids Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000126 substances Substances 0.000 description 1
Abstract
Description
Technical field
The invention belongs to 3D printing technique fields, are related to a kind of 3D printer, the 3D based on especially a kind of ceramic material Printer.
Background technique
3D printing (3DP) i.e. one kind of rapid shaping technique, essence are to manufacture 3D solid using integration method, are being formed Cheng Zhong first then divides it with delamination software in the three-dimensional entity model of computer generating unit with 3D sculpting software Layer processing, i.e., threedimensional model is divided into a series of layer, each layer of information is transmitted to molding machine, by liquefaction, powdered, The solid material of threading successively " printing " goes out product.
Ceramic material have excellent high performance, high intensity, high rigidity, low-density, good chemical stability, using its The industries such as space flight and aviation, automobile, biology are used widely.And ceramics are difficult to the use that the characteristics of forming again limits it, especially It is that the molding of complicated ceramic objects is realized by means of complicated die.Complicated die needs higher processing cost and longer Development cycle, moreover, can not just modify to it after mold completion of processing, this situation is increasingly not suitable with product It improves and updates.Disadvantages mentioned above can be overcome by preparing ceramic objects using rapid shaping technique.The method of ceramic 3D printing It very much, but for the Method of printing of the most simple economy of ceramics etc. is that green body is printed using the method for pottery mud accumulation, Then it is sintered, i.e., squeezes out the pottery mud for being used for molding blank from printer discharging gate again, control discharging while squeezing out Mouth is mobile to print required shape,
Ceramics are prepared into the ceramic suspension liquid with curing characteristics, computer control by also referred to as direct write free forming technology Slurry conveying device on the Z axis of system moves in X-Y plane, while from syringe needle extruded ceramic suspension, in pH value, light Solidification is realized according to the solidification factor effect such as, heat radiation is lower, and successively accumulation forms ceramic part blank.
Advantage is: without heating, while being not necessarily to the radiation of ultraviolet light and laser, forms at normal temperature；Configurable large arch dam The uniform and stable ceramic suspension liquid of amount obtains the sintered body of high densification after sintering.
The disadvantage is that: case of materials that aqueous-based ceramic suspension, although then material is easily configured, due to viscous between material Knot property is poor, and curing molding speed is slow, and a large amount of material of accumulation can crush green body in the short time, should not especially print elongated outstanding Arm type structure, such as the arm etc. that person model is stretched out；If it is organic matter base ceramic slurry, although then stability is high, save Period is long, but need to increase low temperature dumping process, extends manufacture cycle, improves manufacturing cost.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, it is quick to propose a kind of ceramic 3D printing material Solidification equipment, this ceramics 3D printing material rapid solidification device can accelerate the solidification of material.
Object of the invention can be realized by the following technical scheme: a kind of ceramics 3D printing material rapid solidification device, Including discharging gate, the discharging gate includes the successively taper of nested encryptions step by step,
It is followed successively by the first taper, the second taper, third taper, the 4th taper from inside to outside, the The bottom nozzle of four tapers has sealing end face, and the bottom nozzle of taper is closed；The bottom nozzle of the taper is set It is equipped with the flange towards taper inner cavity, the inside bore of the flange and the cone being nested in the taper of flange place The outer peripheral bore of the bottom nozzle of shape casing is suitable, and the flange inner is formed in taper where being nested in the flange Taper guiding surface；So that all taper bottom nozzles are retracted into the sealing end of outermost taper When face, all tapers are coaxial；
The sealing end face first line of a couplet is connected with feed pipe；The feed pipe includes the smallest taper bottom nozzle with centre Corresponding main feed pipe, and with remaining each mobilizable first taper, the second taper, third taper bottom First order feed pipe that port edge is correspondingly arranged, second level feed pipe, third level feed pipe are provided on the sealing end face Electromagnet, for taper bottom end to be adsorbed on sealing end face；4th taper is fixedly connected on control discharging gate In mobile mechanism；Semiconductor chilling plate is provided on the tube wall of first taper, wherein the refrigeration end of semiconductor chilling plate On the outer wall of taper, the radiating end of semiconductor chilling plate is located on the inner wall of taper, semiconductor chilling plate Pilot passes through sealing end face and connects to the control circuit；
When the charging gear connection of different feeds pipe and different materials, for being sent into the pottery mud of different materials, so that not The pottery mud of same material is squeezed out from different tapers, so that the material of the ectonexine of the mud squeezed out is different.
When aqueous-based ceramic slurry (i.e. pug) passes through from the first taper, it is powered to semiconductor chilling plate, so that First taper inner cavity refrigeration makes pug so that the pug surface temperature squeezed out reduces the viscosity for increasing pug Shape preferably solidified.
Pug or compressed gas can be inputted to secondary feed pipe, the meeting under the pressure of pug is so that the secondary feed pipe institute Corresponding taper overcomes the attraction of electromagnet and is detached from from sealing end face, to make it at the state of stretching.It can be with Selectively several tapers are retracted, several tapers are stretched out, so that the discharging gate with multiple coaxial apertures is formed, Different materials is squeezed out from different holes.For example, stretching out the second taper, bored by the second taper to second Shape casing squeezes into the higher machine object base ceramic slurry of viscosity, and squeezes out water base ceramic slurry from the first taper, such double The advantages of layer material, that is, organic matter base ceramic slurry is convenient for solidification bonding, and has the characteristics of aqueous-based ceramic slurry material, in addition this When the first taper on semiconductor chilling plate be powered after, the cooling outer wall heating of the inner wall of the first taper in this way can be with So that the exospheric temperature height of the material printed is convenient for bonding, inside temperature is low, is convenient for curing molding.Or make the first taper Casing, third taper stretch out, so that third level feed pipe beating machine object base ceramic slurry.
As long as taper can be pushed to return to sealing end it is required that taper pushes up taper when retracting Face.When it is required that taper stretches out, the magnetic force of electromagnet can reduce, so that it weakens the suction of taper, The suction of electromagnet is further added by after taper, which is stretched, is detached from sealing end face, it is required that taper can increase magnetic when retracting Power.
In above-mentioned ceramic 3D printing material rapid solidification device, corresponding each taper is provided with and taper The identical collar of top ports caliber size.It, can with different collar pushing tows in the taper top ports of corresponding size The taper pushing tow is returned on sealing end face.
In above-mentioned ceramic 3D printing material rapid solidification device, semiconductor is provided on the tube wall of third taper Cooling piece, wherein the refrigeration end of semiconductor chilling plate is located on the outer wall of taper, and the radiating end of semiconductor chilling plate is located at On the inner wall of taper.When there is printing slurry to pass through in third taper, third taper semiconductor chilling plate is logical At this moment electricity prints cooling slurry in the first taper so that the slurry of interior process is heated, thus cold outer in being formed The slurry of heat, for internal cooling slurry viscosity greatly convenient for playing a supporting role, the temperature high viscosity height of outer layer is convenient for bonding, thus Convenient for fixing shape, hotter outer layer is also conducive to evaporation sizing of drying out.
In above-mentioned ceramic 3D printing material rapid solidification device, wherein second level feed pipe and feeder connection, So that surrounding flow flowing is reinforced while printing slurry from the first taper, to accelerate the evaporation of slurry moisture Solidification, preferably thermal current.
In above-mentioned ceramic 3D printing material rapid solidification device, wherein third level feed pipe and feeder connection, So that surrounding flow flowing is reinforced while printing slurry from the second taper, to accelerate the evaporation of slurry moisture Solidification.
In above-mentioned ceramic 3D printing material rapid solidification device, corresponding each taper is provided with and taper The identical collar of top ports caliber size.
In above-mentioned ceramic 3D printing material rapid solidification device, the charging gear of main feed pipe connection is hard pottery mud Charging gear, the charging gear of outermost secondary feed pipe connection are soft viscosity pottery mud charging gear.To print Mud item has the inner core of sticking surface and some strength, and the pug printed can be made to be easier to bond between each other in this way Securely, it so that the green body support performance printed is more preferable, effectively prevent being crushed by the weight of itself.
Compared with prior art, this ceramics 3D printing material rapid solidification device has the advantage that
The present invention using deformable discharging mouth structure realize the ectonexine temperature of material printed or material properties or Accelerate the air-flow flowing around the slurry printed simultaneously, accelerate the evaporation curable of moisture, or print the slurry of composite material, By being conducive to dumping to internal material cooling in printing, interim heating when by squeezing out to cladding material is conducive to The bonding of itself and raw material on green body around, structure is simple, easy to operate, at low cost.
Detailed description of the invention
Fig. 1 is the schematic diagram that all tapers are in contraction state；
Fig. 2 is the schematic diagram that the second taper is in stretching state；
Fig. 3 is that the first taper, third taper are in the schematic diagram of stretching state；
Fig. 4 is the schematic diagram of collar bracket state.
In figure, first order feed pipe 1, second level feed pipe 2, third level feed pipe 3, main feed pipe 4, the first taper 11, the second taper 22, third taper 33, the 4th taper 44, sealing end face 441, electromagnet 5, collar 6, branch Frame 7, semiconductor chilling plate 10.
Specific embodiment
The following is specific embodiments of the present invention, and technical scheme of the present invention will be further described in conjunction with attached drawing, However, the present invention is not limited to these examples.
Embodiment one
As shown, a kind of ceramics 3D printing material rapid solidification device, including discharging gate, the discharging gate include successively The taper of nested encryptions step by step is followed successively by the first taper 11, the second taper 22, third taper sheath from inside to outside Pipe 33, the 4th taper 44, the bottom nozzle of the 4th taper have sealing end face 441, the bottom nozzle of taper are sealed It closes；The bottom nozzle of the taper is provided with the flange towards taper inner cavity, the inside bore of the flange with it is nested Suitable in the outer peripheral bore of the bottom nozzle of the taper where the flange in taper, the flange inner is formed with pair The guiding surface of taper where being nested in the flange in taper；So that all taper bottom nozzles retract When to the sealing end face of outermost taper, all tapers are coaxial；The sealing end face first line of a couplet is connected with feed pipe； The feed pipe includes main feed pipe 4 corresponding with intermediate the smallest taper bottom nozzle, and can each be lived with remaining First order feed pipe 1 that dynamic the first taper, the second taper, third taper bottom nozzle edge are correspondingly arranged, Second level feed pipe 2, third level feed pipe 3 are provided with electromagnet 5 on the sealing end face, for by taper bottom end It is adsorbed on sealing end face；4th taper is fixedly connected in the mobile mechanism of control discharging gate；First taper Semiconductor chilling plate 10 is provided on tube wall, wherein the refrigeration end of semiconductor chilling plate is located on the outer wall of taper, partly leads The radiating end of body cooling piece is located on the inner wall of taper, and the pilot of semiconductor chilling plate passes through sealing end face and control Circuit connection；
When the charging gear connection of different feeds pipe and different materials, for being sent into the pottery mud of different materials, so that not The pottery mud of same material is squeezed out from different tapers, so that the material of the ectonexine of the mud squeezed out is different.
When it is required that taper stretches out, the magnetic force of electromagnet can reduce, so that its suction to taper Weaken, the suction of electromagnet is further added by after taper, which is stretched, is detached from sealing end face, it is required that taper can when retracting Increase magnetic force.
When aqueous-based ceramic slurry (i.e. pug) passes through from the first taper, it is powered to semiconductor chilling plate, so that First taper inner cavity refrigeration makes pug so that the pug surface temperature squeezed out reduces the viscosity for increasing pug Shape preferably solidified.
Pug or compressed gas can be inputted to secondary feed pipe, the meeting under the pressure of pug is so that the secondary feed pipe institute Corresponding taper overcomes the attraction of electromagnet and is detached from from sealing end face, to make it at the state of stretching.It can be with Selectively several tapers are retracted, several tapers are stretched out, so that the discharging gate with multiple coaxial apertures is formed, Different materials is squeezed out from different holes.For example, as shown in Fig. 2, make the second taper stretch out, pass through the second taper sheath Pipe squeezes into the higher machine object base ceramic slurry of viscosity to the second taper, and squeezes out water base ceramic slurry from the first taper The advantages of material, such double layer material, that is, organic matter base ceramic slurry is convenient for solidification bonding, and have aqueous-based ceramic slurry material Feature, after in addition at this moment the semiconductor chilling plate on the first taper is powered, the inner wall cooling outer wall liter of the first taper Temperature can make the exospheric temperature height of the material printed convenient for bonding in this way, and inside temperature is low, be convenient for curing molding.Or As shown in figure 3, stretching out the first taper, third taper, so that third level feed pipe beating machine object base ceramic slurry Material.
As long as taper can be pushed to return to sealing end it is required that taper pushes up taper when retracting Face.When it is required that taper stretches out, the magnetic force of electromagnet can reduce, so that it weakens the suction of taper, The suction of electromagnet is further added by after taper, which is stretched, is detached from sealing end face, it is required that taper can increase magnetic when retracting Power.
In above-mentioned ceramic 3D printing material rapid solidification device, corresponding each taper is provided with and taper The identical collar of top ports caliber size.It, can with different collar pushing tows in the taper top ports of corresponding size The taper pushing tow is returned on sealing end face.
Embodiment two
It is unlike the embodiments above, it is provided with semiconductor chilling plate on the tube wall of third taper, wherein partly leading The refrigeration end of body cooling piece is located on the outer wall of taper, and the radiating end of semiconductor chilling plate is located at the inner wall of taper On.As shown in figures 2 and 3, when there is printing slurry to pass through in third taper, third taper semiconductor chilling plate is logical At this moment electricity prints cooling slurry in the first taper so that the slurry of interior process is heated, thus cold outer in being formed The slurry of heat, for internal cooling slurry viscosity greatly convenient for playing a supporting role, the temperature high viscosity height of outer layer is convenient for bonding, thus Convenient for fixing shape, hotter outer layer is also conducive to evaporation sizing of drying out.
Embodiment three
As shown in Fig. 2, wherein second level feed pipe and feeder connection, so that when be printed from the first taper While slurry, the second taper stretches out, and air-flow is flowed out by the second taper, so that beating in the first taper The slurry surrounding flow flowing printed off is reinforced, to accelerate slurry moisture evaporation curable, preferably thermal current.
Or as shown in figure 3, in above-mentioned ceramic 3D printing material rapid solidification device, wherein third level feed pipe and supply Device of air connection, so that surrounding flow flowing is reinforced, to accelerate to starch while printing slurry from the second taper Expect moisture evaporation curable.
Example IV
Such as shown in figure 3, the charging gear of main feed pipe connection is hard pottery mud charging gear, third level feed pipe 3 The charging gear of connection is that soft viscosity is made pottery mud charging gear, so that hard is made pottery, mud is from the first taper, the second taper Middle outflow, soft viscosity pottery mud are flowed out from third taper and the 4th taper, are glued so that the mud item printed has Property surface and some strength inner core, can make in this way the pug printed between each other be easier bond securely so that The green body support performance printed is more preferable, effectively prevent being crushed by the weight of itself.
As shown in figure 4, corresponding each taper is provided with and taper sheath tube top for the retraction convenient for controlling taper The identical collar 6 of port caliber size, all collars are circumferential to be arranged on the bracket 7 of annular.With different collars Pushing tow can return to the taper pushing tow on sealing end face in the taper top ports of corresponding size.
Although some terms are used more herein, it does not exclude the possibility of using other terms.Use these Term is only for the convenience of describing and explaining the nature of the invention；It is construed as any additional limitation all It is to be disagreed with spirit of that invention.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710986897.3A CN107618092B (en) | 2017-10-20 | 2017-10-20 | A kind of ceramics 3D printing material rapid solidification device |
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| CN201710986897.3A CN107618092B (en) | 2017-10-20 | 2017-10-20 | A kind of ceramics 3D printing material rapid solidification device |
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| CN107618092B true CN107618092B (en) | 2019-06-28 |
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| JP6030185B2 (en) * | 2014-05-14 | 2016-11-24 | ソク−ムン，キム | 3D printing apparatus and method, and construction method of steel concrete structure using the same |
| CN204604909U (en) * | 2015-01-27 | 2015-09-02 | 常州市东科电子科技有限公司 | A kind of multi-functional 3D printhead |
| CN105172144B (en) * | 2015-09-29 | 2017-09-12 | 西安交通大学 | A kind of multistage wire feed printhead of continuous fiber reinforced composite materials 3D printing |
| CN105772725B (en) * | 2016-04-06 | 2018-05-11 | 西安交通大学 | A kind of Efficient high-temperature nozzle for supporting more printed materials |
| CN106564182A (en) * | 2016-10-21 | 2017-04-19 | 浙江理工大学 | Rapid forming method capable of compositing fiber and resin-based material |
| CN108515691B (en) * | 2017-06-21 | 2020-03-27 | 泉州市比邻三维科技有限公司 | Three-dimensional inkjet printer of product integration |
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