CN107618092B - A kind of ceramics 3D printing material rapid solidification device - Google Patents

A kind of ceramics 3D printing material rapid solidification device Download PDF

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Publication number
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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China
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taper
feed pipe
printing
ceramics
rapid solidification
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CN201710986897.3A
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Chinese (zh)
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CN107618092A (en
Inventor
金莹
邱振江
金鑫
叶进
胡笑奇
吴美辉
吴富强
金乾华
竺娜亚
徐凌
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龙泉市金宏瓷业有限公司
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Publication of CN107618092A publication Critical patent/CN107618092A/en
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Abstract

The present invention provides a kind of ceramic 3D printing material rapid solidification devices, are related to a kind of 3D printing equipment.It solves the problems, such as that the material printed in the prior art is not easy to solidify.Including discharging gate, the discharging gate includes the successively taper of nested encryptions step by step;The feed pipe includes main feed pipe corresponding with intermediate the smallest taper bottom nozzle, and first order feed pipe, second level feed pipe, the third level feed pipe being correspondingly arranged with remaining each mobilizable first taper, the second taper, third taper bottom nozzle edge, electromagnet is provided on the sealing end face;4th taper is fixedly connected in the mobile mechanism of control discharging gate;Semiconductor chilling plate is provided on the tube wall of first taper.The present invention realizes the ectonexine temperature of material printed or material properties or accelerate the air-flow around the slurry printed simultaneously using deformable discharging mouth structure to be flowed, and the evaporation curable of moisture is accelerated.

Description

A kind of ceramics 3D printing material rapid solidification device

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)

1. a kind of ceramics 3D printing material rapid solidification device, including discharging gate, which is characterized in that the discharging gate includes successively The taper of nested encryptions step by step, be followed successively by from inside to outside the first taper, the second taper, third taper, 4th taper, the bottom nozzle of the 4th taper have sealing end face;The bottom nozzle of the taper is provided with direction The flange of taper inner cavity, the inside bore of the flange and the taper being nested in the taper of flange place The outer peripheral bore of bottom nozzle is suitable, and the flange inner is formed with to the taper sheath in taper where being nested in the flange The guiding surface of pipe;The sealing end face first line of a couplet is connected with feed pipe;The feed pipe includes the smallest taper with centre The corresponding main feed pipe of bottom nozzle, and with remaining each mobilizable first taper, the second taper, third taper First order feed pipe that casing shoe mouth edge is correspondingly arranged, second level feed pipe, third level feed pipe, on the sealing end face It is provided with electromagnet;4th taper is fixedly connected in the mobile mechanism of control discharging gate;The tube wall of first taper On be provided with semiconductor chilling plate, wherein the refrigeration end of semiconductor chilling plate is located on the inner wall of taper, semiconductor refrigerating The radiating end of piece is located on the outer wall of taper, and the pilot of semiconductor chilling plate passes through sealing end face and control circuit connects It connects.
2. ceramics 3D printing material rapid solidification device according to claim 1, which is characterized in that third taper Semiconductor chilling plate is provided on tube wall, wherein the refrigeration end of semiconductor chilling plate is located on the outer wall of taper, semiconductor The radiating end of cooling piece is located on the inner wall of taper.
3. ceramics 3D printing material rapid solidification device according to claim 1, which is characterized in that wherein the second level is fed Pipe and feeder connection.
4. ceramics 3D printing material rapid solidification device according to claim 1, which is characterized in that wherein the third level feeds Pipe and feeder connection.
5. ceramics 3D printing material rapid solidification device according to claim 1, which is characterized in that main feed pipe connection Charging gear is hard pottery mud charging gear, and the charging gear of outermost secondary feed pipe connection is that soft viscosity pottery mud is fed Device.
6. ceramics 3D printing material rapid solidification device according to claim 1, which is characterized in that corresponding each taper sheath Pipe is provided with collar identical with taper top ports caliber size.
CN201710986897.3A 2017-10-20 2017-10-20 A kind of ceramics 3D printing material rapid solidification device CN107618092B (en)

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CN107618092B true CN107618092B (en) 2019-06-28

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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