CN204844867U - Three -dimensional inkjet printer and three -dimensional printer head that beats - Google Patents
Three -dimensional inkjet printer and three -dimensional printer head that beats Download PDFInfo
- Publication number
- CN204844867U CN204844867U CN201520329922.7U CN201520329922U CN204844867U CN 204844867 U CN204844867 U CN 204844867U CN 201520329922 U CN201520329922 U CN 201520329922U CN 204844867 U CN204844867 U CN 204844867U
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- volume chamber
- material volume
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- dimensional
- supercritical fluid
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Abstract
The utility model relates to a three -dimensional inkjet printer and three -dimensional printer head that beats. The utility model provides a three -dimensional printer head that beats includes material volume chamber, and the screw rod setting is at material volume intracavity, and the motor is connected with the screw rod, and feedway and material volume chamber intercommunication print the nozzle setting at the tip in material volume chamber, and the heater setting and is located between feedway and the printing nozzle on material volume chamber, and supercritical fluid supply system and material volume chamber communicate. Supercritical fluid is added to fused printing material, produces single -phase molten mixture under the mixed mixing effect of screw rod, forms even micropore bubble and turns usefulness into to reducing the density value of printing the object, reducing the three -dimensional dimensional deviation of printing the object, the three -dimensional grazing of printing the object promotes more than 50%, and the required temperature of material is printed in effective melting that reduces when printing, and the energy can be saved is and prevent operating personnel's scald.
Description
Technical field
The utility model belongs to three-dimensional printer field, specifically, relates to the three-dimensionally shaped three-dimensional printer of a kind of screw extruding and 3 D-printing head.
Background technology
Rapid shaping technique can be used in the forming process that three-dimensional (3D) prints, and is realized the manufacture of three-dimensional body by the transfer process of computer data.Usually, 3D prints rapid shaping technique and mainly comprises three types: stereo carving (Stereolithography), successively superpose manufacture (LaminatedObjectManufacturing) and selective deposition moulding (SelectiveDepositionModeling, SDM).Deformation In The Fdm Process technology (FDM) is a kind of technical matters belonging to selective deposition moulding (SDM).Present stage, FDM three-dimensional printer normally utilizes thermoplastic, polymeric materials in the molten state, squeezes out from printing nozzle, solidifies and forms the thin layer of contour shape, then superposes layer by layer and finally form product.
Application number is that CN201410066757.0 Chinese invention patent application discloses a kind of three-dimensional printer, the principle of this three-dimensional printer adopts screw extruding shaping, under the effect of control system, by screw rod, the printed material of heating and melting is sprayed on print platform by printing nozzle.The three-dimensional printer of screw extruding forming principle belongs to the three-dimensional printer of FDM type, but such three-dimensional printer exists some defects.
At present, the polymeric material that on market, FDM three-dimensional printer uses is acrylonitrile-butadiene-styrene terpolymer (ABS), PLA (PLA), nylon (PA) and Merlon (PC) normally, uses the heating-up temperature of the printhead of the three-dimensional printer of these materials usually more than 200 DEG C.Such as, the three-dimensional printer of ABS material is used to need the heating-up temperature of printhead to reach 220 DEG C, and use the three-dimensional printer of PLA material to need the heating-up temperature of printhead to reach 205 DEG C, so just need the heat of at substantial to make material molten, thus caused the waste of multiple-energy-source, and the too high personnel that also easily cause of the temperature of printhead scald.In addition, this three-dimensional printer is when extrusion molding object, and because high-temperature fusion wire rod needs through Slow cooling curing molding gradually, therefore its print speed is very slow.In addition, owing to printing the wire drawing effect that wire rod produces on the surface of printing objects, the surface of printing objects can be caused not to be very smooth.And, for the object that hot melt materials is shaping, also there is the internal stress produced because of molecularly oriented and the temperature difference at interior of articles, thus uneven when causing shaped object to shrink, dimensional discrepancy is comparatively large, finally makes 3 D-printing object produce the problem such as warpage, distortion.
Utility model content
First object of the present utility model is to provide a kind of 3 D-printing head of three-dimensional printer.
Another object of the present utility model is to provide a kind of three-dimensional printer.
An object more of the present utility model is to provide a kind of Method of printing of three-dimensional printer.
The 3 D-printing head that the utility model provides comprises material volume chamber, screw rod is arranged in material volume chamber, motor is connected with screw rod and drive screw turns, feeding device is communicated with material volume chamber, printing nozzle is arranged on the end in material volume chamber, and heater is arranged on material volume chamber, and between feeding device and printing nozzle, supercritical fluid supply system is communicated with material volume chamber, exports supercritical fluid to material volume chamber.
From such scheme, the printed material of melting adds supercritical fluid, single-phase molten mixture is produced under the mix and blend effect of screw rod, form uniform microporous bubble and turn use into, thus reduce the density value of printing objects, compared to the technical scheme not adding supercritical fluid, the density of the 3 D-printing object that this programme obtains reduces by 6% to 10%, not only save material but also reduce costs, although the density of 3 D-printing object decreases, but because the density of printing objects is homogeneous, its physical and mechanical properties can significantly promote on the contrary, thus ensure that the quality of 3 D-printing object, in addition, also effectively improve 3 D-printing object due to stress and shrink uneven and produce warpage, distortion, make that the smooth surface of 3 D-printing object is smooth, dimensionally stable, reduce the dimensional discrepancy of 3 D-printing object, the grazing of 3 D-printing object promotes more than 50%, in addition, effectively reduce the temperature required for melting printed material when printing, save the energy and prevent the scald of operating personnel.
A preferred scheme is provided with volume control device between supercritical fluid supply system and material volume chamber.
From such scheme, regulate supercritical fluid to enter the flow in material volume chamber, control the part by weight of the printed material of supercritical fluid and melting in rational scope, thus the microporous bubble controlling melted material better turns use into.
A preferred scheme is, heater is be wrapped in the heater coil in material volume chamber.
A preferred scheme is that printing nozzle is removably connected to the end in material volume chamber.
From such scheme, in the print procedure of 3 D-printing object, need in some cases to adjust the cross-sectional sizes that printing nozzle extrudes silk material, when needs carry out printing speed time, first the flow supply of supercritical fluid can be increased, the density of melted material can corresponding reduction but the volume of melted material in material volume chamber can be improved, this time manually or electronic mode change more wide-aperture printing nozzle and just can carry out print procedure faster.
A preferred scheme is that 3 D-printing head also comprises control system, and the position of printing nozzle is provided with density sensor, and control system is electrically connected with density sensor, volume control device respectively.
From such scheme, according to the testing result of density sensor, control system judges that whether the density of the melted material of microporous bubble is suitable, when density is greater than the density value required for 3 D-printing object, the flow that supercritical fluid flows into material volume chamber is increased by volume control device, and when the density detected is less than the density value required for 3 D-printing object time, corresponding reduction supercritical fluid flows into the flow in material volume chamber.
Preferred scheme is that the position of printing nozzle is provided with temperature sensor, and temperature sensor is electrically connected with control system further.
From such scheme, in the mixed process of melted material and supercritical fluid, the heating-up temperature of melted material is a crucial parameter, it turns into having impact on the microbubble of melted material, therefore the temperature monitoring melted material in material volume chamber is in real time needed, and by regulating the rate of heat addition of heater to reach the object controlling printing objects character.In addition, when the part by weight of supercritical fluid and melted material changes, the rate of heat addition of corresponding adjustment heater is also needed.
The three-dimensional printer that the utility model provides, comprises material volume chamber; Screw rod is arranged in material volume chamber; Motor is connected with screw rod; Feeding device is communicated with material volume chamber; Printing nozzle is arranged on the end in material volume chamber; Print platform is for accepting the melted material produced by printing nozzle; Heater is arranged on material volume chamber, and between feeding device and printing nozzle; Supercritical fluid supply system is communicated with material volume chamber and exports supercritical fluid to material volume chamber.
The Method of printing of the three-dimensional printer that the utility model provides, three-dimensional printer comprises material volume chamber; Screw rod is arranged in material volume chamber; Motor is connected with screw rod; Feeding device is communicated with material volume chamber; Printing nozzle is arranged on the end in material volume chamber, and print platform is for accepting the melted material sprayed by printing nozzle; Heater is arranged on material volume chamber, and between feeding device and printing nozzle; The method comprises, and feeding device provides printed material in material volume chamber, and electric motor driven screw rotates, and printed material is moved by the upstream toward downstream in material volume chamber, and under the effect of heater, printed material is converted into melted material; Melted material sprays on print platform by printing nozzle; While electric motor driven screw rotates, in material volume chamber, provide supercritical fluid, screw rod is to melted material and critical fluids mix and blend, and melted material generation microporous bubble turns use into.
A preferred scheme is, printing nozzle is sprayed to print platform go forward, detect the density value of printing nozzle place melted material, then density value testing result is fed back to the control system of three-dimensional printer, and then regulate the flow flow in material volume chamber of supercritical fluid.
A preferred scheme printing nozzle is sprayed to print platform and goes forward, and detects the temperature that supercritical fluid flows into position, material volume chamber, then temperature detection result is fed back to the control system of three-dimensional printer, and then regulate the heating power of heater.
Accompanying drawing explanation
Fig. 1 is the structure chart of the first embodiment of the utility model 3 D-printing head.
Fig. 2 is the structure chart of the second embodiment of the utility model 3 D-printing head.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Detailed description of the invention
First embodiment
The 3 D-printing head of the present embodiment comprises material volume chamber 10, screw rod 20, motor 30, feeding device 40, printing nozzle 50, heater 60, supercritical fluid supply system 70 and volume control device 80.
It is inner that screw rod 20 is arranged on material volume chamber 10, and the diameter of screw rod 20 is less than the inwall in material volume chamber 10 slightly.Have motor 30 in the upper end of screw rod 20, motor 30 can rotate by drive screw 20 clockwise or counterclockwise.A feeding device 40 is provided with on the right side of the upstream region in material volume chamber 10, feeding device 40 and material volume chamber 10 are interconnected, and operating personnel or robot add PLA (PLA) material that is Powdered or fragment shape in feeding device 40.In the lower end in material volume chamber 10, dismountable mode is provided with printing nozzle 50.Between feeding device 40 and printing nozzle 50, material volume chamber 10 is provided with heater 60, heater 60 is for being wrapped in the heater coil of the inner chamber body in material volume chamber 10.In the outside in material volume chamber 10, there is supercritical fluid supply system 70, by tube connector 71, supercritical fluid supply system 70 is communicated with material volume chamber 10.Volume control device 80 is also provided with between supercritical fluid supply system 70 and material volume chamber 10.
Feeding device 40 provides printed material to continuation in material volume chamber 10, motor 30 drive screw 20 rotates, printed material is moved to downstream position by the upstream position in material volume chamber 10, under the effect of heater 60, printed material gradates as melted material, is provided the nitrogen (N of supercritical fluid by supercritical fluid supply system 70 to the inside in material volume chamber 10
2) or carbon dioxide (CO
2), screw rod 20 pairs of printed materials and supercritical fluid carry out mix and blend, and after printed material melting, microbubble occurs and turn use into, final melted material sprays on print platform 90 through printing nozzle 50.
Second embodiment
The 3 D-printing head of the present embodiment comprises material volume chamber 100, screw rod 200, motor 300, feeding device 400, printing nozzle 500, heater, supercritical fluid supply system 700 and volume control device 800, the architectural feature of these parts and annexation are described in detail in the first embodiment, repeat no more.
The 3 D-printing head of the present embodiment also comprises control system 900, and the accessory position of printing nozzle 500 is provided with density sensor 510.The position be communicated with material volume chamber 100 at the tube connector 710 of supercritical fluid supply system 700 is provided with temperature sensor 110.Control system 900 is electrically connected with fluid feed system 700, density sensor 510, volume control device 800, temperature sensor 110 respectively.
Detected the density value of the melted material of printing nozzle 500 position by density sensor 510, then density value testing result is fed back to the control system 900 of three-dimensional printer, and then adjustment supercritical fluid flows into the flow in material volume chamber 100.According to the testing result of density sensor 510, judge that through control system 900 whether the density value of the melted material of microporous bubble is suitable, when density value is greater than the density value required for printing objects, increase by adjust flux control device 800 flow that supercritical fluid flows into material volume chamber 100; And when the density value detected is less than the density value required for printing objects time, corresponding reduction supercritical fluid flows into the flow in material volume chamber 100, thus realize the real-time regulating action to printing object density.
Detected the heating-up temperature in material volume chamber when supercritical fluid flows into 100 position, material volume chamber by temperature sensor 510, then temperature detection result is fed back to the control system 900 of three-dimensional printer, and then regulate the heating power of heater.In the mixed process of melted material and supercritical fluid, the heating-up temperature of melted material is a crucial parameter, it has impact to the microporous bubble effect of melted material, therefore the temperature monitoring melted material in material volume chamber 100 is in real time needed, and by regulating the rate of heat addition of heater, thus reach the object controlling printing objects character.In addition, when the part by weight of supercritical fluid and melted material changes, the rate of heat addition of corresponding adjustment heater is also needed.
3rd embodiment
The three-dimensional printer of the present embodiment comprises material volume chamber, screw rod is arranged in material volume chamber, motor is connected with screw rod, feeding device is communicated with material volume chamber, printing nozzle is arranged on the end in material volume chamber, and print platform is for accepting the melted material produced by printing nozzle, and heater is arranged on material volume chamber, and between feeding device and printing nozzle, supercritical fluid supply system is communicated with material volume chamber.
Finally it should be noted that, the utility model is not limited to above-mentioned embodiment.In other embodiments, printed material is nylon material, Merlon, poly-cellulose ester, ABS, and the color of printed material can be red, yellow, blue etc., also can be the composite material of shades of colour; Control system is PLC, and it is connected by wired or wireless signal with computer equipment or mobile terminal device, and terminal use can according to the control operation of user interface realization to three-dimensional printer; Increase a weight tester in the porch of feeding device, thus detect the addition speed of printed material, weight tester carries out signal feedback to process and judge to three-dimensional printer control system; The volume control device of supercritical fluid can be the valve of a manual opening and closing or the valve of Electronic control.These embodiments or the situation not paying creative work to the scheme of the related variation of these embodiments also within claims of the present utility model.
Claims (7)
1. 3 D-printing head, comprises,
Material volume chamber;
Screw rod, it is arranged in described material volume chamber;
Motor, it is connected with described screw rod and drives described bolt rotary;
Feeding device, it is communicated with described material volume chamber;
Printing nozzle, it is arranged on the end in described material volume chamber;
Heater, it is arranged on described material volume chamber, and between described feeding device and described printing nozzle;
It is characterized in that:
Supercritical fluid supply system, is communicated with described material volume chamber, exports supercritical fluid to described material volume chamber.
2. 3 D-printing head according to claim 1, is characterized in that:
Volume control device is provided with between described supercritical fluid supply system and described material volume chamber.
3. 3 D-printing head according to claim 1 and 2, is characterized in that:
Described heater is be wrapped in the heater coil in described material volume chamber.
4. 3 D-printing head according to claim 1 and 2, is characterized in that:
Described printing nozzle is removably connected to the end in described material volume chamber.
5. 3 D-printing head according to claim 2, is characterized in that:
Described 3 D-printing head also comprises control system, and the position of described printing nozzle is provided with density sensor, and described control system is electrically connected with described density sensor, described volume control device respectively.
6. 3 D-printing head according to claim 5, is characterized in that:
The position of described printing nozzle is provided with temperature sensor, and described temperature sensor is electrically connected with described control system.
7. three-dimensional printer, comprises,
Material volume chamber;
Screw rod, it is arranged in described material volume chamber;
Motor, it is connected with described screw rod;
Feeding device, it is communicated with described material volume chamber;
Printing nozzle, it is arranged on the end in described material volume chamber;
Print platform, it is for accepting the melted material produced by described printing nozzle;
Heater, it is arranged on described material volume chamber, and between described feeding device and described printing nozzle;
It is characterized in that:
Supercritical fluid supply system, is communicated with described material volume chamber, exports supercritical fluid to described material volume chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520329922.7U CN204844867U (en) | 2015-05-19 | 2015-05-19 | Three -dimensional inkjet printer and three -dimensional printer head that beats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520329922.7U CN204844867U (en) | 2015-05-19 | 2015-05-19 | Three -dimensional inkjet printer and three -dimensional printer head that beats |
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| Publication Number | Publication Date |
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| CN204844867U true CN204844867U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520329922.7U Withdrawn - After Issue CN204844867U (en) | 2015-05-19 | 2015-05-19 | Three -dimensional inkjet printer and three -dimensional printer head that beats |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104875389A (en) * | 2015-05-19 | 2015-09-02 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer and printing method and three-dimensional printing head |
| CN105034377A (en) * | 2015-08-25 | 2015-11-11 | 华东理工大学 | High molecular material supercritical fluid microcellular foaming three-dimensional forming device and application |
| CN105921751A (en) * | 2016-02-19 | 2016-09-07 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer and printing method thereof |
| CN106493349A (en) * | 2016-02-19 | 2017-03-15 | 珠海天威飞马打印耗材有限公司 | 3 D-printing material, FDM three-dimensional printers and its Method of printing |
| CN108067619A (en) * | 2018-01-24 | 2018-05-25 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer, the forming method of three-dimensional printer and metal three-dimensional body |
| CN109129817A (en) * | 2018-08-29 | 2019-01-04 | 中山市武汉理工大学先进工程技术研究院 | A kind of discharging device of 3D printer |
| US11110519B2 (en) | 2016-02-19 | 2021-09-07 | Print-Rite ⋅ Unicorn Image Products Co., Ltd. Of Zhuhai | Metal three-dimensional printer |
-
2015
- 2015-05-19 CN CN201520329922.7U patent/CN204844867U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104875389A (en) * | 2015-05-19 | 2015-09-02 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer and printing method and three-dimensional printing head |
| CN104875389B (en) * | 2015-05-19 | 2017-05-17 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer and printing method and three-dimensional printing head |
| CN105034377A (en) * | 2015-08-25 | 2015-11-11 | 华东理工大学 | High molecular material supercritical fluid microcellular foaming three-dimensional forming device and application |
| CN105034377B (en) * | 2015-08-25 | 2020-05-08 | 华东理工大学 | High polymer material supercritical fluid micropore foaming three-dimensional forming device and application |
| CN105921751A (en) * | 2016-02-19 | 2016-09-07 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer and printing method thereof |
| CN106493349A (en) * | 2016-02-19 | 2017-03-15 | 珠海天威飞马打印耗材有限公司 | 3 D-printing material, FDM three-dimensional printers and its Method of printing |
| US11110519B2 (en) | 2016-02-19 | 2021-09-07 | Print-Rite ⋅ Unicorn Image Products Co., Ltd. Of Zhuhai | Metal three-dimensional printer |
| CN108067619A (en) * | 2018-01-24 | 2018-05-25 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer, the forming method of three-dimensional printer and metal three-dimensional body |
| CN109129817A (en) * | 2018-08-29 | 2019-01-04 | 中山市武汉理工大学先进工程技术研究院 | A kind of discharging device of 3D printer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151209 Effective date of abandoning: 20170517 |
|
| AV01 | Patent right actively abandoned |