CN107283819A - A kind of 3D printing equipment and Method of printing towards HMW silicon rubber - Google Patents
A kind of 3D printing equipment and Method of printing towards HMW silicon rubber Download PDFInfo
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- CN107283819A CN107283819A CN201710582485.3A CN201710582485A CN107283819A CN 107283819 A CN107283819 A CN 107283819A CN 201710582485 A CN201710582485 A CN 201710582485A CN 107283819 A CN107283819 A CN 107283819A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
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- Manufacturing & Machinery (AREA)
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Abstract
A kind of 3D printing equipment and Method of printing towards HMW silicon rubber, 3D printing head system uses hundred micron order micropore nozzles of the screw extruding power with high-rate of shear and high crushing strength, greatly the kinematic viscosity of reduction HMW silicon rubber, realizes the 3D printing shaping of HMW, high compression modulus and high service life silastic material；Extrusion and swell stability of the material at hundred micron order micropore nozzles are improved, the dimensional accuracy of accurate control 3D printing fluid line realizes the high-quality of 3D printing process, high accuracy and high efficiency；By the way of photo-thermal second order solidification 3D printing material, the solidification rate and dimensional accuracy of 3D printing material is greatly improved, improves the high-quality stability of 3D printing HMW silastic material, realizes the macro property and adjustability of structure of 3D printing material.
Description
Technical field
The present invention relates to heavy viscous material 3D printing technique field, and in particular to a kind of 3D towards HMW silicon rubber
Printing device and Method of printing.
Background technology
Existing silicon rubber 3D printing system is the increasing material manufacturing system based on 3DP printing techniques (drop injection), and it is relied on
Material self gravitation or the effect of piston press power, extrude low molecule amount, low viscosity and mobility preferable by printing nozzle micropore
Silicon rubber drop or fluid, drop or fluid mutually blend into streamline and rapid ultra-violet curing elastomer-forming, can be printed
Regulate and control the spatial distribution of printed droplets and fluid in journey, thus prepare porous with macro property and structure Modulatory character or
Solid silicone rubber products.However, there is problems with existing silicon rubber 3D printing method：
First, existing silicon rubber 3D printing method uses the conventional ink-jet printing nozzle in 3DP printing techniques mostly, due to
By material self gravitation and the less limitation of piston extrusion force, low molecule amount, low viscosity and mobility can only be printed preferable
Silicon rubber, and itself poor flexibility, modulus of compressibility are low, and the silastic material fragility printed is larger, easy curling, it is difficult in work
Large-scale application in industry.
2nd, existing silicon rubber 3D printing method relies on two kinds of molding modes of material self gravitation and piston extrusion pressure,
Therefore the material density printed is relatively low, and discharging is slow, and shaping efficiency is relatively low, while being difficult to accurately control 3D printing drop
Extruded and the dimensional accuracy after swell in nozzle with fluid, it is impossible to realize the high-quality of 3D printing process, high accuracy and high efficiency.
3rd, existing silicon rubber 3D printing method is solidified by ultraviolet light, and curing efficiency and degree are relatively low, it is difficult to
Rapid curing is shaped in short time, and the easy crosslinking curing in region in a fluid at the heart is not thorough, so as to influence silicon rubber to print
The quality stability of product.
The content of the invention
It is a kind of towards HMW silicon rubber present invention aims at providing in order to overcome above-mentioned prior art application shortcoming
3D printing equipment and Method of printing, HMW, high intensity and highly viscous silicon rubber are prepared by new printing device
Material, and realize the macro property and adjustability of structure of 3D printing material.
In order to achieve the above object, the present invention is adopted the following technical scheme that：
A kind of 3D printing equipment towards HMW silicon rubber, including the three-dimensional connected in 3D printer frame 7 are mobile
3D printer substrate 5 is installed, the top of 3D printer substrate 5 is beaten provided with 3D in plateform system 6, three-dimensional mobile platform system 6
Print head system 1, photocuring controller 3 and heat cure controller 4,3D printing head system 1, photocuring controller 3, heat cure control
Device 4 and three-dimensional mobile platform system 6 and 3D printer control cabinet 2 are connected；
Described 3D printing head system 1 has 100 μm -150 μm hundred micron-sized nozzle microcellular structures, realizes HMW
The extrusion function of high viscosity macromolecule silicon rubber.
Described 3D printer control cabinet 2 realizes accurate micro- extrusion control, motion control using PID control technology
System, temperature control and optical and thermal second order solidification control, the accurate compensation and control of macro-size.
Silastic material after described 3 pairs of printings of photocuring controller carries out rapid photocuring crosslinked action；Described
Silastic material after the 4 pairs of printings of heat cure controller carries out rapid thermosetting crosslinked action.
The material surface of described 3D printer substrate 5 has wetability, and micro- extrudate can on 3D printer substrate 5
Support own wt.
Described 3D printing head system 1 includes hundred micron order micropore nozzles 8, and hundred micron order micropore nozzles 8 are connected to screw rod
One end of extruding cavity 10, the inside of Screw Extrusion chamber 10 is provided with screw rod 9, and the other end and silastic material of Screw Extrusion chamber 10 enter
Material mouth 11 is connected, and the power intake and linear electric motors 13 of screw rod 9 are connected, and is provided with outside screw rod 9 and the junction of linear electric motors 13
Cooler bin 12.
The described micro-pore diameter of hundred micron order micropore nozzle 8 is 100 μm -150 μm.
The described a diameter of 20mm of screw rod 9, draw ratio is 20:1.
It is 2.2KW that described linear electric motors 13, which provide power, and extrusion pressure is 150MPa power,
A kind of 3D printing method towards HMW silicon rubber, comprises the following steps：
1) 3D printing data processing：By the digital three-dimensional model that need to be printed be processed as individual-layer data, Route Planning Data,
Optical and thermal curing process data, the data after processing are imported in 3D printer control cabinet 2, and send data to 3D printing head
System 1, photocuring controller 3, heat cure controller 4, three-dimensional mobile platform system 6；
2) 3D printing experiment material prepares：The high viscoplasticity silicone materials that molecular weight is 100,000-100 ten thousand are selected, and
Supporting material, light curing agent are added, printed material is loaded to the Screw Extrusion of 3D printing head system 1 by feed of silicone mouthful 11
In chamber 10；
3) hundred micron order micropore expressing technique：Linear electric motors 13 in 3D printing head system 1 drive screw rod 9 to 3D printing material
Material carries out spiral shearing, and silastic material is squeezed power and by hundred micron order micropore nozzles 8,3D printer control cabinet 2 enters
The control of row micropore procession parameters and printing precision, in print procedure, cooler bin 12 carries out reality to 3D printing head system 1
When cool down；
4) optical and thermal second order curing process：3D printing head system 1 is squeezed by photocuring controller 3 and heat cure controller 4
The silicon rubber fluid gone out carries out optical and thermal second order solidification, and 3D printer control cabinet 2 carries out optical and thermal second order curing process parameter and solid
Change the control of precision；
5) coordinated movement of various economic factors of 3D printer substrate 5：3D printer control cabinet 2 is by coordinating 3D printing head system 1,3D printer
Substrate 5 and the relative position of the three of three-dimensional mobile platform system 6, gradually layering accumulate required printer model；
6) repeat step 3)-step 5), until part Layered manufacturing is completed.
Advantages of the present invention：
The present invention is sprayed by using the hundred micron order micropores with high-rate of shear and the screw extruding power of high crushing strength
Mouth 8, can greatly reduce the kinematic viscosity of HMW silicon rubber, realize HMW, high compression modulus and high service life silicon
The 3D printing shaping of elastomeric material；Extrusion and swell stability of the material at hundred micron order micropore nozzles 8 can be greatly improved, it is accurate
Really the dimensional accuracy of control 3D printing fluid line, realizes the high-quality of 3D printing process, high accuracy and high efficiency；Using optical and thermal
Second order solidifies the mode of 3D printing material, and the solidification rate and dimensional accuracy of 3D printing material can be greatly improved, and improves 3D printing
The high-quality stability of HMW silastic material.
Brief description of the drawings
Fig. 1 is the 3D printing equipment schematic diagram of HMW silicon rubber of the present invention.
Fig. 2 is the 3D printing head system schematic diagram of HMW silicon rubber of the present invention.
Embodiment
Below in conjunction with drawings and examples, the present invention is described in further detail.
Reference picture 1, a kind of 3D printing equipment towards HMW silicon rubber, including connected in 3D printer frame 7
3D printer substrate 5, the top of 3D printer substrate 5 are installed in three-dimensional mobile platform system 6, three-dimensional mobile platform system 6
Provided with 3D printing head system 1, photocuring controller 3 and heat cure controller 4,3D printing head system 1, photocuring controller 3, heat
Solidification controller 4 and three-dimensional mobile platform system 6 and 3D printer control cabinet 2 are connected.
Described 3D printing head system 1 has the nozzle microcellular structure of hundred micron orders (100 μm -150 μm), realizes macromolecule
Measure the extrusion function of high viscosity macromolecule silicon rubber.
Described 3D printer control cabinet 2 realizes accurate micro- extrusion control, motion control using PID control technology
System, temperature control and optical and thermal second order solidification control, the accurate compensation and control of macro-size.
Silastic material after described 3 pairs of printings of photocuring controller carries out rapid photocuring crosslinked action, improves material
Expect obdurability, realize the dimensional accuracy controllability of printing-fluid.
Silastic material after described 4 pairs of printings of heat cure controller carries out rapid thermosetting crosslinked action, improves material
Expect obdurability, realize the dimensional accuracy controllability of printing-fluid.
The material surface of described 3D printer substrate 5 has wetability, and micro- extrudate can on 3D printer substrate 5
Support own wt.
Described three-dimensional mobile platform system 6 realizes the accurate of micro- extrusion nozzle and three-dimensional mobile platform relative movement
Positioning, accurate control 3D printing part size.
Reference picture 2, described 3D printing head system 1 includes hundred micron order micropore nozzles 8, and hundred micron order micropore nozzles 8 are micro-
Bore dia is 100 μm -150 μm, and hundred micron order micropore nozzles 8 are connected to one end of Screw Extrusion chamber 10, Screw Extrusion chamber 10
Inside be provided with screw rod 9, a diameter of 20mm of screw rod 9, draw ratio is 20:1, the other end and silastic material of Screw Extrusion chamber 10 enter
Material mouth 11 is connected, and the dischargeable capacity of Screw Extrusion chamber 10 is 1L, and the power intake and linear electric motors 13 of screw rod 9 are connected, straight-line electric
It is 2.2KW that machine 13, which provides power, and extrusion pressure is provided with cold outside 150MPa power, screw rod 9 and the junction of linear electric motors 13
But case 12.
Referring to Figures 1 and 2, a kind of 3D printing method towards HMW silicon rubber, comprises the following steps：
1) 3D printing data processing：By the digital three-dimensional model that need to be printed be processed as individual-layer data, Route Planning Data,
Optical and thermal curing process data, the data after processing are imported in 3D printer control cabinet 2, and send data to 3D printing head
System 1, photocuring controller 3, heat cure controller 4, three-dimensional mobile platform system 6；
2) 3D printing experiment material prepares：The high viscoplasticity silicone materials that molecular weight is 100,000-100 ten thousand are selected, and
Supporting material, light curing agent are added, printed material is loaded to the Screw Extrusion of 3D printing head system 1 by feed of silicone mouthful 11
In chamber 10；
3) hundred micron order micropore expressing technique：Linear electric motors 13 in 3D printing head system 1 drive screw rod 9 to 3D printing material
Material carries out spiral shearing, and silastic material is squeezed power and by hundred micron order micropore nozzles 8,3D printer control cabinet 2 enters
The control of row micropore procession parameters and printing precision, in print procedure, cooler bin 12 carries out reality to 3D printing head system 1
When cool down；
4) optical and thermal second order curing process：3D printing head system 1 is squeezed by photocuring controller 3 and heat cure controller 4
The silicon rubber fluid gone out carries out optical and thermal second order solidification, and 3D printer control cabinet 2 carries out optical and thermal second order curing process parameter and solid
Change the control of precision；
5) coordinated movement of various economic factors of 3D printer substrate 5：3D printer control cabinet 2 is by coordinating 3D printing head system 1,3D printer
Substrate 5 and the relative position of the three of three-dimensional mobile platform system 6, gradually layering accumulate required printer model；
6) repeat step 3)-step 5), until part Layered manufacturing is completed.
Claims (9)
1. a kind of 3D printing equipment towards HMW silicon rubber, it is characterised in that：Including being connected in 3D printer frame (7)
Three-dimensional mobile platform system (6), 3D printer substrate (5), 3D printer substrate are installed in three-dimensional mobile platform system (6)
(5) top is provided with 3D printing head system (1), photocuring controller (3) and heat cure controller (4), 3D printing head system
(1), photocuring controller (3), heat cure controller (4) and three-dimensional mobile platform system (6) and 3D printer control cabinet (2) connect
Connect；
Described 3D printing head system (1) has 100 μm -150 μm hundred micron-sized nozzle microcellular structures, realizes that HMW is high
The extrusion function of viscosity macromolecule silicon rubber.
2. a kind of 3D printing equipment towards HMW silicon rubber according to claim 1, it is characterised in that：Described
3D printer control cabinet (2) using PID control technology realize accurate micro- extrusion control, motion control, temperature control and
Optical and thermal second order solidification control, the accurate compensation and control of macro-size.
3. a kind of 3D printing equipment towards HMW silicon rubber according to claim 1, it is characterised in that：Described
Photocuring controller (3) carries out rapid photocuring crosslinked action to the silastic material after printing；Described heat cure controller
(4) rapid thermosetting crosslinked action is carried out to the silastic material after printing.
4. a kind of 3D printing equipment towards HMW silicon rubber according to claim 1, it is characterised in that：Described
The material surface of 3D printer substrate (5) has wetability, and micro- extrudate can support itself weight on 3D printer substrate (5)
Amount.
5. a kind of 3D printing equipment towards HMW silicon rubber according to claim 1, it is characterised in that：Described
3D printing head system (1) includes hundred micron order micropore nozzles (8), and hundred micron order micropore nozzles (8) are connected to Screw Extrusion chamber
(10) one end, the inside of Screw Extrusion chamber (10) is provided with screw rod (9), the other end and silastic material of Screw Extrusion chamber (10)
Charging aperture (11) is connected, power intake and linear electric motors (13) connection of screw rod (9), and screw rod (9) and linear electric motors (13) are even
Meet place outside provided with cooler bin (12).
6. a kind of 3D printing equipment towards HMW silicon rubber according to claim 5, it is characterised in that：Described
Hundred micron order micropore nozzle (8) micro-pore diameters are 100 μm -150 μm.
7. a kind of 3D printing equipment towards HMW silicon rubber according to claim 5, it is characterised in that：Described
Screw rod (9) a diameter of 20mm, draw ratio is 20:1.
8. a kind of 3D printing equipment towards HMW silicon rubber according to claim 5, it is characterised in that：Described
It is 2.2KW that linear electric motors (13), which provide power, and extrusion pressure is 150MPa power.
9. a kind of 3D printing method towards HMW silicon rubber, it is characterised in that comprise the following steps：
1) 3D printing data processing：The digital three-dimensional model that need to be printed is processed as individual-layer data, Route Planning Data, optical and thermal
Curing process data, the data after processing are imported in 3D printer control cabinet (2), and send data to 3D printing head system
(1), photocuring controller (3), heat cure controller (4), three-dimensional mobile platform system (6)；
2) 3D printing experiment material prepares：Select molecular weight to be 100,000-100 ten thousand high viscoplasticity silicone materials, and add
Supporting material, light curing agent, printed material are loaded by feed of silicone mouthful (11) Screw Extrusion of 3D printing head system (1)
In chamber (10)；
3) hundred micron order micropore expressing technique：Linear electric motors (13) in 3D printing head system (1) drive screw rod (9) to 3D printing
Material carry out spiral shearing, silastic material be squeezed power and by hundred micron order micropore nozzles (8), 3D printer control cabinet
(2) control of micropore procession parameters and printing precision is carried out, in print procedure, cooler bin (12) is to 3D printing head system
(1) cooled down in real time；
4) optical and thermal second order curing process：By photocuring controller (3) and heat cure controller (4) to 3D printing head system (1)
The silicon rubber fluid of extrusion carries out optical and thermal second order solidification, and 3D printer control cabinet (2) carries out optical and thermal second order curing process parameter
With the control of solidification precision；
5) 3D printer substrate (5) coordinated movement of various economic factors：3D printer control cabinet (2) is by coordinating 3D printing head system (1), 3D printing
Machine substrate (5) and the relative position of three-dimensional mobile platform system (6) three, gradually layering accumulate required printer model；
6) repeat step 3)-step 5), until part Layered manufacturing is completed.
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| CN201710582485.3A CN107283819B (en) | 2017-07-17 | 2017-07-17 | A kind of 3D printing equipment and Method of printing towards high molecular weight silicon rubber |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109553503A (en) * | 2018-12-19 | 2019-04-02 | 西安近代化学研究所 | The compound 4D printing equipment of explosive wastewater photo-thermal and forming method |
| CN109762116A (en) * | 2019-01-28 | 2019-05-17 | 中国科学院兰州化学物理研究所 | A kind of ultraviolet light auxiliary solidification is straight to write silicon rubber increasing material manufacturing method |
| CN111331837A (en) * | 2020-03-19 | 2020-06-26 | 合肥工业大学 | Moisture-curing silica gel 3D printer and printing method thereof |
| CN112895426A (en) * | 2021-01-20 | 2021-06-04 | 青岛理工大学 | Micro-nano 3D printing method for single-plate electrode electric field driven jet deposition |
| CN113710460A (en) * | 2019-04-25 | 2021-11-26 | 弗罗伊登伯格欧洲股份公司 | Additive manufacturing method for manufacturing a shaped body from an elastomer |
| CN113733563A (en) * | 2021-08-31 | 2021-12-03 | 北京软体机器人科技有限公司 | 3D printed resistor type soft sensor manufacturing method and device |
| CN114144296A (en) * | 2019-06-11 | 2022-03-04 | 特瑞堡密封系统德国有限公司 | 3D printing system and method for 3D printing an elastically deformable rubber body, in particular a rubber seal |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109553503A (en) * | 2018-12-19 | 2019-04-02 | 西安近代化学研究所 | The compound 4D printing equipment of explosive wastewater photo-thermal and forming method |
| CN109553503B (en) * | 2018-12-19 | 2021-04-13 | 西安近代化学研究所 | Photothermal composite 4D printing device for explosives and powders and forming method |
| CN109762116A (en) * | 2019-01-28 | 2019-05-17 | 中国科学院兰州化学物理研究所 | A kind of ultraviolet light auxiliary solidification is straight to write silicon rubber increasing material manufacturing method |
| CN109762116B (en) * | 2019-01-28 | 2020-01-14 | 中国科学院兰州化学物理研究所 | Ultraviolet light-assisted curing direct-writing silicone rubber additive manufacturing method |
| JP2022530485A (en) * | 2019-04-25 | 2022-06-29 | フロイデンベルク エスエー | Additional manufacturing method for manufacturing molded products from elastomers |
| CN113710460A (en) * | 2019-04-25 | 2021-11-26 | 弗罗伊登伯格欧洲股份公司 | Additive manufacturing method for manufacturing a shaped body from an elastomer |
| JP7295271B2 (en) | 2019-04-25 | 2023-06-20 | フロイデンベルク エスエー | Additive manufacturing method for producing moldings from elastomers |
| CN114144296B (en) * | 2019-06-11 | 2023-12-26 | 特瑞堡密封系统德国有限公司 | 3D printing system and method for 3D printing of an elastically deformable rubber body, in particular a rubber seal |
| US11745414B2 (en) | 2019-06-11 | 2023-09-05 | Trelleborg Sealing Solutions Germany Gmbh | 3D-printer system and 3D-printing method of an elastomerically deformable rubber body, in particular a rubber seal |
| CN114144296A (en) * | 2019-06-11 | 2022-03-04 | 特瑞堡密封系统德国有限公司 | 3D printing system and method for 3D printing an elastically deformable rubber body, in particular a rubber seal |
| CN111331837A (en) * | 2020-03-19 | 2020-06-26 | 合肥工业大学 | Moisture-curing silica gel 3D printer and printing method thereof |
| CN112895426B (en) * | 2021-01-20 | 2022-03-11 | 青岛理工大学 | Micro-nano 3D printing method for single-plate electrode electric field driven jet deposition |
| CN112895426A (en) * | 2021-01-20 | 2021-06-04 | 青岛理工大学 | Micro-nano 3D printing method for single-plate electrode electric field driven jet deposition |
| CN113733563A (en) * | 2021-08-31 | 2021-12-03 | 北京软体机器人科技有限公司 | 3D printed resistor type soft sensor manufacturing method and device |
| CN113733563B (en) * | 2021-08-31 | 2024-02-20 | 北京软体机器人科技股份有限公司 | Manufacturing method and device of 3D printed resistor type soft sensor |
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