CN104842561A - 3D (three dimensional) printing equipment for preparing thermoplastic elastomer product - Google Patents
3D (three dimensional) printing equipment for preparing thermoplastic elastomer product Download PDFInfo
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- CN104842561A CN104842561A CN201510237639.6A CN201510237639A CN104842561A CN 104842561 A CN104842561 A CN 104842561A CN 201510237639 A CN201510237639 A CN 201510237639A CN 104842561 A CN104842561 A CN 104842561A
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Abstract
The invention discloses 3D (three dimensional) printing equipment for preparing a thermoplastic elastomer product, which mainly consists of a material melting and conveying unit, a material squeezing unit, a three-dimensional coordinate platform and a rack; in the material squeezing unit, a valve body is full of melted and plasticized materials through a hot runner; the opening and closing of the nozzle of the valve body is controlled by a valve needle; the valve needle is fixed onto a thermal insulator which has certain elastic deformation capability and thermal insulation capability; corresponding force is applied to the upper side of the thermal insulator by using a spring and an electromagnet, so as to enable pressure generated by the melted materials in the valve body to be balanced with the applied force, so that the valve needle can seal the nozzle, and when the electromagnet is controlled to intermittently move up and down according to certain rules by a controller, the valve needle also moves up and down correspondingly due to the fact that the balance of the force is broken, so that the nozzle is continuously opened and closed to form micro droplets; micro droplets are cooled and formed on the three-dimensional platform, and the product is finally printed. According to the equipment disclosed by the invention, different materials of micro droplets or fuses can be sprayed according to different time sequences, and the product, which is made from a soft and hard composite material and has multifunctional gradients, can be printed.
Description
Technical field
The present invention relates to a kind of three-dimensional printing technology field, particularly relate to a kind of three-dimensional modeling apparatus and the method applying extrusion theory and prepare thermoplastic elastomer article.
Background technology
At present, three-dimensional printing technology has the 3D such as Stereolithography, injection of material, binding agent injection, Fused Deposition Modeling, selective laser sintering, sheet lamination and oriented energy deposition and prints technique, and wherein fused glass pellet is most widely used.Fused glass pellet adopts hot melt shower nozzle that Plasitc fibers material is gone out from shower nozzle extruding after fusing, and it is shaping to be deposited on assigned address Post RDBMS.The material of fused glass pellet technique is generally thermoplastic, as wax, ABS, PC, nylon etc.Need the filamentary material becoming to have special diameter by corresponding materials processing before printing; and carry out the process accordingly such as dedusting, drying; high to characteristic requirements such as the rigidity of material; material price is expensive; and the phenomenon often having silk material skidding entanglement in print procedure occurs; causing melting charging insufficient, there is defect in goods.In addition, the 3D printer of existing fused glass pellet mainly adopts two roller extruding to drive silk material to advance, non-puddle plays plunger effect promotion puddle and extrudes shower nozzle, but plunger effect can not be played for materials such as such as TPE, TPU, PA12 owing to lacking necessary rigidity, so market adopts the 3D printing device of fused glass pellet technology can only process the materials such as PLA, ABS, PC, the printing processing of the materials such as thermoplastic elastomer (TPE) can not be carried out, thus limit the application of 3D printing.
This device is according to extruder processing and forming principle, and carry out improving accordingly can being used for processing multiple thermoplastic elastic material to it, thus solve the shortcomings such as the requirement of fused glass pellet 3D printing device to printed material is high, material price is expensive, printed material limitation is large, can processing thermoplastic elastomeric material, and on this device, add that many cover plasticizing apparatus directly can be prepared soft or hard composite and have the material of multifunctional gradient, greatly extend the application of 3D printing technique.
Summary of the invention
The object of the invention is to propose a kind of 3D printing equipment preparing thermoplastic elastomer article, solve current fused glass pellet 3D printing device to the rigidity requirement of printed material, the 3D that can realize thermoplastic elastic material prints, simultaneously, equipment can realize silk and pile up or droplet accumulation, meets the requirement of different accuracy and many material stackings.
The technical scheme realizing above-mentioned purpose is, a kind of 3D printing equipment preparing thermoplastic elastomer article, extrudes the compositions such as unit, three-dimensional coordinate platform and frame primarily of material melts supply unit, material, in material melts supply unit, material enters machine barrel inside by hopper, singe screw in machine barrel is under the effect of stepper motor, it is driven to rotate with corresponding rotating speed by shaft coupling, the material entering machine barrel is carried out mixing, shearing, the heating-cooling device simultaneously machine barrel installed controls the temperature in machine barrel by control system, makes material ensure to plastify completely, and is finally fed to material and extrudes unit, extrude in unit at material, material after fusion plastification is full of valve body by hot flow path, the folding of valve body nozzle is controlled by needle, needle be fixed on there is certain elastic deformability and heat-insulating capability insulator on, above insulator, apply with spring and electromagnet the pressure that corresponding power makes fused materials produce in valve body balance with it, thus nozzle can be shut by needle, when intermittence moves up and down controller control electromagnet according to certain rules, needle also moves up and down accordingly because the balance of power is broken, thus make nozzle constantly open and close formation droplet, improve print speed if want, needle can stay open state, and material becomes thread and extrudes, and carries out thread accumulation, and when need extrude stopping, needle moves down shuts nozzle.Or meanwhile, the three-dimensional coordinate platform below nozzle does the motion of certain rule under the effect of control system on X, Y, Z tri-directions, and droplet cools deposition modeling on three-dimensional platform, finally prints goods.
A kind of 3D printing equipment preparing thermoplastic elastomer article of the present invention, wherein material melts supply unit is primarily of compositions such as hopper, machine barrel, stepper motor, shaft coupling, screw rod, heating-cooling devices; Material enters machine barrel by hopper, and hopper is made up of weigh-hatching plant and storing hopper, so that conservative control feeding quantity; Stepper motor is connected with screw rod by shaft coupling, and by the rotating speed of the accurate control step motor of driver, thus conservative control screw rod rotates, and makes material be able to mix in machine barrel, carry and finally plastify completely.
A kind of 3D printing equipment preparing thermoplastic elastomer article of the present invention, wherein the composition such as needle, valve body, nozzle, heater of unit primarily of electromagnet, spring, lifting platform, band insulator extruded by material; Electromagnet is arranged on lifting platform, spring is placed between the needle of lifting platform and band collet, initial tension of spring can be changed by regulating the height of lifting platform, to ensure that spring and electromagnet are applied to the pressure that in power on insulator and valve body, fused materials produces and keep balancing, when electromagnet lifts, balance is broken, needle is by jack-up, nozzle is opened and is produced droplet or fuse, control work of electromagnet frequency just controllable valve pin open frequency, thus control the frequency of droplet generation and the blocking-up of fuse; Insulator is formed by heat-barrier material and the combination of materials with certain elastic deformability, both can play heat insulation effect, and can prevent again fused materials from flowing out from top; Heater is used for ensureing that the temperature of fused materials in valve body keeps certain scope.
A kind of 3D printing equipment preparing thermoplastic elastomer article of the present invention, three-dimensional coordinate platform can be realized the motion in X, Y, Z tri-directions by controller, can make droplet and fuse cooling deposition on platform according to certain rules, form required goods.
A kind of 3D printing equipment preparing thermoplastic elastomer article of the present invention, many cover material melts supply units can be used, fusion plastification is carried out to multiple material, then with junction station, multiple nozzle is secured together, the nozzle different with controller sprays droplet or fuse by different sequential, just printable soft or hard composite and the goods with multifunctional gradient.
Accompanying drawing explanation
fig. 1it is a kind of 3D printing equipment structural representation preparing thermoplastic elastomer article of the present invention
figure.
in figure: 1-stepper motor, 2-shaft coupling, 3-hopper, 4-screw rod, 5-heating-cooling device, 6-machine barrel, 7-electromagnet, 8-lifting platform, 9-spring, 10-insulator, 11-heater, 12-needle, 13-valve body, 14-three-dimensional coordinate platform, 15-frame.
Detailed description of the invention
A kind of 3D printing equipment preparing thermoplastic elastomer article of the present invention, as shown in Figure 1, extrudes the compositions such as unit, three-dimensional coordinate platform 12 and frame 15 primarily of material melts supply unit, material, wherein material melts supply unit is primarily of compositions such as stepper motor 1, shaft coupling 2, hopper 3, screw rod 4, heating-cooling device 5, machine barrels 6, stepper motor 1 is connected with screw rod 4 by shaft coupling 2, thus control the rotating speed of screw rod, screw rod 4 is fixed in machine barrel 6, material enters in machine barrel 6 by hopper 3, heating-cooling device 5 is fixed on machine barrel 6, is controlled the temperature in machine barrel 6 by controller control heating-cooling device 5, wherein material extrudes unit primarily of electromagnet 7, spring 9, lifting platform 8, insulator 10, needle 12, valve body 13, composition such as heater 11 grade, electromagnet 7 is arranged on lifting platform 8, spring 9 is placed between lifting platform 8 and insulator 10, spring 9 pretightning force can be changed by regulating the height of lifting platform 8, to ensure that spring 9 and electromagnet 7 are applied to the pressure that in power on insulator and valve body 13, fused materials produces and keep dynamic equilibrium, when controller control electromagnet 7 lifts, balance is broken, needle 12 is by jack-up, nozzle is opened and is produced droplet or fuse, control operating frequency just controllable valve pin 12 open frequency of electromagnet 7, thus control the frequency of droplet generation and the blocking-up of fuse, heater 11 is used for ensureing that the temperature of fused materials in valve body 13 keeps certain scope.
A kind of 3D printing equipment preparing thermoplastic elastomer article of the present invention, material enters machine barrel 6 by hopper 3, hopper 3 is made up of weigh-hatching plant and storing hopper, so that conservative control feeding quantity, stepper motor 1 drives screw rod 4 to rotate by shaft coupling 2, by the rotating speed of the accurate control step motor 1 of driver, thus the rotating speed of conservative control screw rod 4, material is made to be able to mix in machine barrel 6, conveying also final plasticizing completely enters valve body 13, fused materials is full of valve body 13, controller controls electromagnet 7 and makes to control needle 13 by corresponding frequency action by certain frequency action, thus control the generation of droplet, meanwhile, three-dimensional coordinate platform 14 below nozzle under the effect of control system at X, Y, Z tri-directions are done the motion of certain rule, droplet cools deposition modeling on three-dimensional platform, finally print goods.
Claims (5)
1. prepare a thermoplastic elastomer article's 3D printing equipment, it is characterized in that: extrude the compositions such as unit, three-dimensional coordinate platform and frame primarily of material melts supply unit, material, in material melts supply unit, material enters machine barrel inside by hopper, singe screw in machine barrel is under the effect of stepper motor, it is driven to rotate with corresponding rotating speed by shaft coupling, the material entering machine barrel is carried out mixing, shearing, the heating-cooling device simultaneously machine barrel installed controls the temperature in machine barrel by control system, makes material ensure to plastify completely, and is finally fed to material and extrudes unit, extrude in unit at material, material after fusion plastification is full of valve body by hot flow path, the folding of valve body nozzle is controlled by needle, needle be fixed on there is certain elastic deformability and heat-insulating capability insulator on, above insulator, apply with spring and electromagnet the pressure that corresponding power makes fused materials produce in valve body balance with it, thus nozzle can be shut by needle, when intermittence moves up and down controller control electromagnet according to certain rules, needle also moves up and down accordingly because the balance of power is broken, thus make nozzle constantly open and close formation droplet, improve print speed if want, needle can stay open state, and material becomes thread and extrudes, and carries out thread accumulation, and when need extrude stopping, needle moves down shuts nozzle.Or meanwhile, the three-dimensional coordinate platform below nozzle does the motion of certain rule under the effect of control system on X, Y, Z tri-directions, and droplet cools deposition modeling on three-dimensional platform, finally prints goods.
2. prepare a thermoplastic elastomer article's 3D printing equipment, it is characterized in that: wherein material melts supply unit is primarily of compositions such as hopper, machine barrel, stepper motor, shaft coupling, screw rod, heating-cooling devices; Material enters machine barrel by hopper, and hopper is made up of weigh-hatching plant and storing hopper, so that conservative control feeding quantity; Stepper motor is connected with screw rod by shaft coupling, and by the rotating speed of the accurate control step motor of driver, thus conservative control screw rod rotates, and makes material be able to mix in machine barrel, carry and finally plastify completely.
3. prepare a thermoplastic elastomer article's 3D printing equipment, it is characterized in that: wherein the composition such as needle, valve body, nozzle, heater of unit primarily of electromagnet, spring, lifting platform, band insulator extruded by material; Electromagnet is arranged on lifting platform, spring is placed between the needle of lifting platform and band collet, initial tension of spring can be changed by regulating the height of lifting platform, to ensure that spring and electromagnet are applied to the pressure that in power on insulator and valve body, fused materials produces and keep balancing, when electromagnet lifts, balance is broken, needle is by jack-up, nozzle is opened and is produced droplet or fuse, control work of electromagnet frequency just controllable valve pin open frequency, thus control the frequency of droplet generation and the blocking-up of fuse; Insulator is formed by heat-barrier material and the combination of materials with certain elastic deformability, both can play heat insulation effect, and can prevent again fused materials from flowing out from top; Heater is used for ensureing that the temperature of fused materials in valve body keeps certain scope.
4. prepare a thermoplastic elastomer article's 3D printing equipment, it is characterized in that: three-dimensional coordinate platform can be realized the motion in X, Y, Z tri-directions by controller, droplet and fuse cooling deposition on platform according to certain rules can be made, form required goods.
5. prepare the 3D printing equipment of thermoplastic elastomer article for one kind, it is characterized in that: many cover material melts supply units can be used, fusion plastification is carried out to multiple material, then with junction station, multiple nozzle is secured together, the nozzle different with controller sprays droplet or fuse by different sequential, just printable soft or hard composite and the goods with multifunctional gradient.
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| CN201510237639.6A CN104842561A (en) | 2015-05-12 | 2015-05-12 | 3D (three dimensional) printing equipment for preparing thermoplastic elastomer product |
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| CN201510237639.6A CN104842561A (en) | 2015-05-12 | 2015-05-12 | 3D (three dimensional) printing equipment for preparing thermoplastic elastomer product |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415689A (en) * | 2015-12-31 | 2016-03-23 | 四川大学 | Wire feeding mechanism suitable for fused deposition 3D printing |
| CN105772727A (en) * | 2016-04-11 | 2016-07-20 | 吉林大学 | 3D printing forming method for metal material gradient parts |
| CN106926444A (en) * | 2017-03-28 | 2017-07-07 | 西安科技大学 | A kind of device and method for 3D printer feed quantity precise control |
| CN106945267A (en) * | 2017-05-17 | 2017-07-14 | 泉州玉环模具有限公司 | Three-dimensional printing-forming equipment and personalized sole print system and Method of printing |
| CN107336435A (en) * | 2017-08-25 | 2017-11-10 | 北京麦宝克斯科技有限公司 | A kind of 3D printer using thermoplastic macromolecule material |
| CN107866973A (en) * | 2017-12-13 | 2018-04-03 | 北京化工大学 | A kind of multistation polymer melt droplet stacks 3D printing device |
| CN108582784A (en) * | 2018-05-31 | 2018-09-28 | 天津职业技术师范大学 | A kind of 3D printing head for material extrusion molding |
| CN108941568A (en) * | 2018-07-13 | 2018-12-07 | 西北工业大学 | A kind of metal semi-solid melting extrusion increasing material manufacturing spray head |
| CN110126263A (en) * | 2019-05-24 | 2019-08-16 | 中国科学院福建物质结构研究所 | A kind of screw extruding change precision increasing material manufacturing equipment of band stirring and choke preventing function |
| CN110193230A (en) * | 2019-04-10 | 2019-09-03 | 厦门建霖健康家居股份有限公司 | Pressure-vessel of crack resistence and preparation method thereof |
| CN111716707A (en) * | 2020-07-22 | 2020-09-29 | 广东柳道热流道系统有限公司 | Injection molding 3D printing hot runner system and injection molding printing method |
| EP3730277A1 (en) * | 2019-04-23 | 2020-10-28 | National Kaohsiung University of Science and Technology | Plastic extruder with a needle valve nozzle |
| CN111907059A (en) * | 2019-05-08 | 2020-11-10 | 高雄科技大学 | Laminated forming system |
| CN112292252A (en) * | 2018-06-12 | 2021-01-29 | Q比格3D有限公司 | Apparatus and method for manufacturing three-dimensional object |
| CN113403706A (en) * | 2021-06-03 | 2021-09-17 | 青岛科技大学 | Polymer vibration jet wire drawing method and equipment |
| CN114801165A (en) * | 2022-03-10 | 2022-07-29 | 浙江师范大学 | Formula 3D printing apparatus is extruded to granule |
| CN115556259A (en) * | 2022-10-25 | 2023-01-03 | 青岛鑫盈鑫包装材料有限公司 | Environment-friendly antirust master batch generates with high dispersion degree extrusion equipment |
| CN115677438A (en) * | 2022-10-28 | 2023-02-03 | 东南大学 | NEPE propellant slurry formula for melt extrusion molding 3D printing and preparation method |
| CN115677438B (en) * | 2022-10-28 | 2024-05-31 | 东南大学 | NEPE propellant slurry formula for melt extrusion molding 3D printing and preparation method |
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| CN101279306A (en) * | 2008-05-09 | 2008-10-08 | 中南大学 | Glue solution injector driven by electromagnetic expulsive force |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415689A (en) * | 2015-12-31 | 2016-03-23 | 四川大学 | Wire feeding mechanism suitable for fused deposition 3D printing |
| CN105772727A (en) * | 2016-04-11 | 2016-07-20 | 吉林大学 | 3D printing forming method for metal material gradient parts |
| CN106926444A (en) * | 2017-03-28 | 2017-07-07 | 西安科技大学 | A kind of device and method for 3D printer feed quantity precise control |
| CN106945267A (en) * | 2017-05-17 | 2017-07-14 | 泉州玉环模具有限公司 | Three-dimensional printing-forming equipment and personalized sole print system and Method of printing |
| CN107336435A (en) * | 2017-08-25 | 2017-11-10 | 北京麦宝克斯科技有限公司 | A kind of 3D printer using thermoplastic macromolecule material |
| CN107866973A (en) * | 2017-12-13 | 2018-04-03 | 北京化工大学 | A kind of multistation polymer melt droplet stacks 3D printing device |
| CN108582784A (en) * | 2018-05-31 | 2018-09-28 | 天津职业技术师范大学 | A kind of 3D printing head for material extrusion molding |
| CN112292252A (en) * | 2018-06-12 | 2021-01-29 | Q比格3D有限公司 | Apparatus and method for manufacturing three-dimensional object |
| CN108941568A (en) * | 2018-07-13 | 2018-12-07 | 西北工业大学 | A kind of metal semi-solid melting extrusion increasing material manufacturing spray head |
| CN110193230A (en) * | 2019-04-10 | 2019-09-03 | 厦门建霖健康家居股份有限公司 | Pressure-vessel of crack resistence and preparation method thereof |
| EP3730277A1 (en) * | 2019-04-23 | 2020-10-28 | National Kaohsiung University of Science and Technology | Plastic extruder with a needle valve nozzle |
| CN111907059B (en) * | 2019-05-08 | 2022-05-31 | 高雄科技大学 | Laminated forming system |
| CN111907059A (en) * | 2019-05-08 | 2020-11-10 | 高雄科技大学 | Laminated forming system |
| CN110126263A (en) * | 2019-05-24 | 2019-08-16 | 中国科学院福建物质结构研究所 | A kind of screw extruding change precision increasing material manufacturing equipment of band stirring and choke preventing function |
| CN111716707A (en) * | 2020-07-22 | 2020-09-29 | 广东柳道热流道系统有限公司 | Injection molding 3D printing hot runner system and injection molding printing method |
| CN113403706A (en) * | 2021-06-03 | 2021-09-17 | 青岛科技大学 | Polymer vibration jet wire drawing method and equipment |
| CN113403706B (en) * | 2021-06-03 | 2022-08-12 | 青岛科技大学 | Polymer vibration jet wire drawing method and equipment |
| CN114801165A (en) * | 2022-03-10 | 2022-07-29 | 浙江师范大学 | Formula 3D printing apparatus is extruded to granule |
| CN115556259A (en) * | 2022-10-25 | 2023-01-03 | 青岛鑫盈鑫包装材料有限公司 | Environment-friendly antirust master batch generates with high dispersion degree extrusion equipment |
| CN115677438A (en) * | 2022-10-28 | 2023-02-03 | 东南大学 | NEPE propellant slurry formula for melt extrusion molding 3D printing and preparation method |
| CN115677438B (en) * | 2022-10-28 | 2024-05-31 | 东南大学 | NEPE propellant slurry formula for melt extrusion molding 3D printing and preparation method |
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Application publication date: 20150819 |