CN204526181U - A kind of 3D printhead - Google Patents
A kind of 3D printhead Download PDFInfo
- Publication number
- CN204526181U CN204526181U CN201520230013.8U CN201520230013U CN204526181U CN 204526181 U CN204526181 U CN 204526181U CN 201520230013 U CN201520230013 U CN 201520230013U CN 204526181 U CN204526181 U CN 204526181U
- Authority
- CN
- China
- Prior art keywords
- printing head
- fixed
- printhead
- head base
- instlated tubular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of 3D printhead, print head assembly is fixed on below printing head base, and feed mechanism is fixed on above printing head base; Print head assembly comprises printed material melting and the printing head extruded, can thermostable heat insulation pipe, to the METAL HEATING PROCESS block that printing head heats; METAL HEATING PROCESS block is enclosed within printing head, and printing head is fixed on instlated tubular lower end, and instlated tubular upper end is fixed on printing head base; Passage is fixed on printing head base, and passes downwardly through the inside that instlated tubular extends to printing head.The utility model has following advantage: scientific structure, compact, and structure is ingenious, and overall weight is light, and feed distance is short, and feeding is more accurate; The spaced heat of the printing head that temperature is higher and the lower printing head base of temperature, significantly reduces the thermal losses of printing head, is conducive to energy-conserving and environment-protective, the heat insula tion of King pipe, and print wire vent even accurately smooth and easy, printing effect is better.
Description
Technical field
The utility model relates to a kind of 3D printer, particularly relates to a kind of 3D printer based on melting fused deposition rapid moulding.
Background technology
3D printer based on melting fused deposition rapid moulding is a kind of electromechanical integration equipment of precision, is generally made up of the X-axis be arranged on cabinet, Y-axis and Z axis three axles, and X-axis and Y-axis are located at one perpendicular in the XY plane of movement of Z axis, are referred to as XY axle; 3D printhead is arranged on XY axle, and separate motion between XY axle and Z axis, regulates the spacing between them by print platform, realizes the 3D print job of 3D printer.
Defect below the 3D printhead ubiquity of common 3D printer: complicated in mechanical structure; Heater mates bad with printing head heat conduction, causes and occur that print temperature is unstable in print procedure of being everlasting, and print wire vent and have some setbacks, wire vent is uneven; Feeding structure is reasonable not, by printed material to be fed to printing head distant, cause easily blocking printhead, the feeding of long distance will be subject to the impact in passage gap, when feeding pumpback, printed material is bending in passage, thus have impact on the precision of feeding.
Utility model content
For the 3D printhead solving existing 3D printer exists above-mentioned defect, the utility model provides a kind of more science, advanced 3D printhead, and its scheme is as described below.
A kind of 3D printhead, comprises print head assembly, printing head base, feed mechanism and can resistant to elevated temperatures passage; It is characterized in that: print head assembly is fixed on below printing head base, feed mechanism is fixed on above printing head base; Print head assembly comprises printed material melting and the printing head extruded, can thermostable heat insulation pipe, to the METAL HEATING PROCESS block that printing head heats; METAL HEATING PROCESS block is enclosed within printing head, and printing head is fixed on instlated tubular lower end, and instlated tubular upper end is fixed on printing head base; Passage is fixed on printing head base, and passes downwardly through the inside that instlated tubular extends to printing head.Printing head and printing head base are separated by instlated tubular, avoid the heat conduction of printing head to on printing head base, cause the waste of heat; The heat-blocking action of instlated tubular thus reduce the power of METAL HEATING PROCESS block.
Further illustrating as such scheme, aforementioned printing head lower end is provided with the nozzle of conical structure, and nozzle interior is provided with the molten chamber of a reverse frustoconic structure, is provided with the spray orifice extended to outside nozzle below molten chamber; Passage is King pipe, and its end extends to the top in molten chamber.This structure is conducive to shortening feed distance, and feeding is more accurate.Solve the feeding of long distance and will receive the impact in passage gap, when feeding pumpback, effectively prevent the plastic wire as printed material bending in passage, improve the precision of feeding.King pipe is high temperature resistant reaches 250 DEG C, King pipe is heat insulation good, inwall resistance is little, King pipe directly and the contact internal walls of printing head, the temperatures as high of printing head more than 200 DEG C, and the plastic wire melt temperature of general printed material only has 170 DEG C, by King pipe, guarantee that the plastic wire in King pipe is not melted, only have and just melt when plastic wire delivers to the molten chamber touching printing head, guarantee to only have a bit of plastic wire to be melted, be conducive to the control of the fusing amount controlling plastic wire.The selection of the thickness of King pipe is very crucial, and too thin then heat-proof quality is deteriorated, and causes the plastic wire in King pipe to be just easily melted in advance, cannot reach the accurate control of wire vent; Too thick heat-proof quality is good, is unfavorable for the transition of the temperature difference, when plastic wire pumpback time, the plastic wire of fusing enters King pipe thereupon, and now internal-external temperature difference is large, and plastic wire temperature is step-down at once, the plastic wire of fusing is easily set in King pipe, causes 3D printhead to block.
Preferably, the aperture of aforementioned spray orifice is 0.4mm, and described instlated tubular is made up of PEEK material.The instlated tubular made of PEEK material is high temperature resistant reaches 250 DEG C, and strength of materials change is little at these elevated temperatures, is conducive to firmly printhead regularly.
Preferably, aforementioned metal heat block is aluminium block, is provided with heating tube and temperature sensor in it.Aluminium block is directly enclosed within printing head, the good heat conductivity of aluminium, effectively the heat of heating tube can be delivered to printing head and temperature sensor.The temperature of heated aluminum block directly surveyed by temperature sensor, and temperature sensor can select temperature measurement accuracy plateau temperature thermocouple.And aluminium sheet quality is light, effectively can alleviate 3D printhead weight.
Preferably, conveniently safeguard, aforementioned printing head and instlated tubular are linked into an integrated entity by screw fixation method, and wherein, printing head top is provided with external screw thread, and instlated tubular bottom is provided with the internal thread mated with this external screw thread; Printing head is being provided with the outer-hexagonal structure of mating with spanner near nozzle location.
Preferably, aforementioned print head assembly side is provided with the cooling fan can dried facing to the nozzle of printing head, and cooling fan is fixed on printing head base by fixed head.The plastics fast cooling shaping of the melting that printing head is extruded by cooling fan, is conducive to improving printing precision, avoids under melting state, producing small deformation because of material, affect printing effect.
Wherein, aforementioned printing head base is provided with the linear bearing of crisscross setting.Facilitate the X-axis of 3D printer and Y-axis to pass printhead respectively by linear bearing, the movement of X-axis and Y-axis directly drives the movement of printhead, and X-axis and Y-axis are in different planes, and move and do not interfere with each other, positioning precision is high.
In addition as supporting, aforementioned feed mechanism comprises material extrusion seat and the stepper motor be located on material extrusion seat and material extrusion head; The output shaft of stepper motor is provided with gear, and material extrusion head is provided with the bearing be oppositely arranged with this gear, is provided with the small gap that the plastic wire that is provided as printed material passes through between gear and bearing; The position corresponding in gap, feeding port respect to one another and discharging opening are located in material extrusion head upper and lower.Feed mechanism is directly installed on printing head base, guarantees that feed distance is short, is conducive to accurate feeding; Avoid printed material bending in passage.During feeding, plastic wire penetrates from feeding port, is pressed on bearing by plastic wire by gear by small gap, then passes from discharging opening, enters passage and extends in the molten chamber of printing head.
Preferably, upper and lower two ends of aforementioned printing head base are provided with aluminium sheet, and aforementioned instlated tubular is fixed on the aluminium sheet of printing head base bottom, and feed mechanism is fixed on the aluminium sheet of printing head base upper end.Aluminium sheet quality is light, effectively can alleviate 3D printhead weight, guarantees that the motion of 3D printhead is more smooth and easy, contributes to improving print quality.
As from the foregoing, the utility model has following advantage: scientific structure, compact, and structure is ingenious, and overall weight is light, and feed distance is short, and feeding is more accurate; Good heat-insulation effect between the printing head that temperature is higher and the lower printing head base of temperature, significantly reduces the thermal losses of printing head, is conducive to energy-conserving and environment-protective; . the heat insula tion of King pipe, print wire vent even accurately smooth and easy, printing effect is better.
Accompanying drawing explanation
Fig. 1 is the stereogram of 3D printhead.
Fig. 2 is the three-dimensional cutaway view of print head assembly in Fig. 1 and printing head base.
Fig. 3 is the stereogram of the feed mechanism in Fig. 1.
Drawing reference numeral illustrates: 1-print head assembly, 2-printing head base, 3-passage, 4-linear bearing, 5-printing head, 6-instlated tubular, 7-METAL HEATING PROCESS block, 8-nozzle, 9-molten chamber, 10-spray orifice, 12-temperature sensor, 13-outer-hexagonal structure, 14-heating tube, 15-feed mechanism, 17-stepper motor, 18-material extrusion head, 19-output shaft, 20-gear, 21-bearing, 22-feeding port, 23-discharging opening, 24-material extrusion seat, 25-cooling fan.
Detailed description of the invention
Below in conjunction with accompanying drawing and preferred embodiment, the utility model and Advantageous Effects thereof are further elaborated.
Print head assembly 1, printing head base 2, feed mechanism 15 and can resistant to elevated temperatures passage 3 is comprised see Fig. 1 ~ Fig. 3,3D printhead; Print head assembly 1 is fixed on below printing head base 2, and feed mechanism 15 is fixed on above printing head base 2; Print head assembly 1 comprises printed material melting and the printing head 5 extruded, can thermostable heat insulation pipe 6, to the METAL HEATING PROCESS block 7 that printing head 5 heats; METAL HEATING PROCESS block 7 is enclosed within printing head 5, and printing head 5 is fixed on instlated tubular 6 lower end, and instlated tubular 6 upper end is fixed on printing head base 2; Passage 3 is fixed on printing head base 2, and passes downwardly through the inside that instlated tubular 6 extends to printing head 5.
See Fig. 2, wherein, printing head 5 lower end is provided with the nozzle 8 of conical structure, and nozzle 8 inside is provided with the molten chamber 9 of a reverse frustoconic structure, is provided with the spray orifice 10 extended to outside nozzle 8 below molten chamber 9; Passage 3 is King pipe, and its end extends to the top in molten chamber 9.
Preferably, the aperture of spray orifice 10 is 0.4mm, and described instlated tubular 6 is made up of PEEK material.METAL HEATING PROCESS block 7 is aluminium block, is provided with heating tube 14 and temperature sensor 12 in it.Printing head 5 and instlated tubular 6 are linked into an integrated entity by screw fixation method, and wherein, printing head 5 top is provided with external screw thread, and instlated tubular 6 bottom is provided with the internal thread mated with this external screw thread; Printing head 5 is being provided with the outer-hexagonal structure 13 of mating with spanner near nozzle 8 position.Print head assembly 1 side is provided with the cooling fan 25 can dried facing to the nozzle 8 of printing head 5, and cooling fan 25 is fixed on printing head base 2 by fixed head.Printing head base 2 is provided with the linear bearing 4 of crisscross setting.
See Fig. 3, feed mechanism 15 comprises material extrusion seat 24 and the stepper motor 17 be located on material extrusion seat 24 and material extrusion 18; The output shaft 19 of stepper motor 17 is provided with gear, and material extrusion 18 is provided with the bearing 21 be oppositely arranged with this gear, is provided with the small gap that the plastic wire that is provided as printed material passes through between gear and bearing 21; The position corresponding in gap, feeding port 22 respect to one another and discharging opening 23 are located in material extrusion 18 upper and lower.Printing head base about 2 two ends are provided with aluminium sheet, and instlated tubular 6 is fixed on the aluminium sheet of printing head base 2 bottom, and feed mechanism 15 is fixed on the aluminium sheet of printing head base 2 upper end.
Book and specific embodiment do not form any restriction to the utility model according to the above description; the utility model is not limited to detailed description of the invention disclosed and described above; to amendments more of the present utility model and distortion, also should fall in the protection domain of claim of the present utility model.
Claims (9)
1. a 3D printhead, comprises print head assembly, printing head base, feed mechanism and can resistant to elevated temperatures passage; It is characterized in that: print head assembly is fixed on below printing head base, feed mechanism is fixed on above printing head base; Print head assembly comprises printed material melting and the printing head extruded, can thermostable heat insulation pipe, to the METAL HEATING PROCESS block that printing head heats; METAL HEATING PROCESS block is enclosed within printing head, and printing head is fixed on instlated tubular lower end, and instlated tubular upper end is fixed on printing head base; Passage is fixed on printing head base, and passes downwardly through the inside that instlated tubular extends to printing head.
2. 3D printhead as claimed in claim 1, it is characterized in that: described printing head lower end is provided with the nozzle of conical structure, nozzle interior is provided with the molten chamber of a reverse frustoconic structure, is provided with the spray orifice extended to outside nozzle below molten chamber; Passage is King pipe, and its end extends to the top in molten chamber.
3. 3D printhead as claimed in claim 2, is characterized in that: the aperture of described spray orifice is 0.4mm, and described instlated tubular is made up of PEEK material.
4. 3D printhead as claimed in claim 2, is characterized in that: described METAL HEATING PROCESS block is aluminium block, is provided with heating tube and temperature sensor in it.
5. the 3D printhead as described in any one of claim 1 ~ 4, is characterized in that: described printing head and instlated tubular are linked into an integrated entity by screw fixation method, and wherein, printing head top is provided with external screw thread, and instlated tubular bottom is provided with the internal thread mated with this external screw thread; Printing head is being provided with the outer-hexagonal structure of mating with spanner near nozzle location.
6. 3D printhead as claimed in claim 5, is characterized in that: described print head assembly side is provided with the cooling fan can dried facing to the nozzle of printing head, and cooling fan is fixed on printing head base by fixed head.
7. 3D printhead as claimed in claim 6, is characterized in that: described feed mechanism comprises material extrusion seat and the stepper motor be located on material extrusion seat and material extrusion head; The output shaft of stepper motor is provided with gear, and material extrusion head is provided with the bearing be oppositely arranged with this gear, is provided with the small gap that the plastic wire that is provided as printed material passes through between gear and bearing; The position corresponding in gap, feeding port respect to one another and discharging opening are located in material extrusion head upper and lower.
8. 3D printhead as claimed in claim 7, is characterized in that: described printing head base is provided with the linear bearing of crisscross setting.
9. 3D printhead as claimed in claim 8, is characterized in that: upper and lower two ends of described printing head base are provided with aluminium sheet, and described instlated tubular is fixed on the aluminium sheet of printing head base bottom, and feed mechanism is fixed on the aluminium sheet of printing head base upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230013.8U CN204526181U (en) | 2015-04-16 | 2015-04-16 | A kind of 3D printhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230013.8U CN204526181U (en) | 2015-04-16 | 2015-04-16 | A kind of 3D printhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204526181U true CN204526181U (en) | 2015-08-05 |
Family
ID=53740227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520230013.8U Expired - Fee Related CN204526181U (en) | 2015-04-16 | 2015-04-16 | A kind of 3D printhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204526181U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105500704A (en) * | 2015-12-15 | 2016-04-20 | 深圳市优特打印耗材有限公司 | Novel 3D printer nozzle structure |
| CN105773979A (en) * | 2016-05-05 | 2016-07-20 | 赖柱彭 | 3D printing pen |
| CN106799838A (en) * | 2017-03-16 | 2017-06-06 | 郑州迈客美客电子科技有限公司 | Multistation 3D printer heat abstractor, supporting shower nozzle and installation method |
| CN107175822A (en) * | 2017-06-27 | 2017-09-19 | 苏州市慧通塑胶有限公司 | A kind of 3D printer of replaceable laser head |
| CN107244073A (en) * | 2017-06-27 | 2017-10-13 | 浙江富瑞三维科技有限公司 | A kind of resistant to elevated temperatures 3D printing ejecting device |
| CN110239097A (en) * | 2019-05-25 | 2019-09-17 | 共享智能铸造产业创新中心有限公司 | Print head shell mechanism and print head or printer with the shell |
| CN110239097B (en) * | 2019-05-25 | 2024-04-19 | 共享智能装备(安徽)有限公司 | Printhead housing structure and printhead or printer with the same |
-
2015
- 2015-04-16 CN CN201520230013.8U patent/CN204526181U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105500704A (en) * | 2015-12-15 | 2016-04-20 | 深圳市优特打印耗材有限公司 | Novel 3D printer nozzle structure |
| CN105773979A (en) * | 2016-05-05 | 2016-07-20 | 赖柱彭 | 3D printing pen |
| CN106799838A (en) * | 2017-03-16 | 2017-06-06 | 郑州迈客美客电子科技有限公司 | Multistation 3D printer heat abstractor, supporting shower nozzle and installation method |
| CN107175822A (en) * | 2017-06-27 | 2017-09-19 | 苏州市慧通塑胶有限公司 | A kind of 3D printer of replaceable laser head |
| CN107244073A (en) * | 2017-06-27 | 2017-10-13 | 浙江富瑞三维科技有限公司 | A kind of resistant to elevated temperatures 3D printing ejecting device |
| CN110239097A (en) * | 2019-05-25 | 2019-09-17 | 共享智能铸造产业创新中心有限公司 | Print head shell mechanism and print head or printer with the shell |
| CN110239097B (en) * | 2019-05-25 | 2024-04-19 | 共享智能装备(安徽)有限公司 | Printhead housing structure and printhead or printer with the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204526181U (en) | A kind of 3D printhead | |
| WO2015165364A1 (en) | High polymer material ultraviolet laser 3d printing method and device for precise temperature control | |
| US20170274454A1 (en) | Extruded metal flow 3d printer | |
| CN202591611U (en) | Movable preheating device for laser rapid prototyping | |
| CN105216334A (en) | A kind of induction heater, 3D printer extruder | |
| CN205341921U (en) | Shower nozzle is extruded to electromagnetic induction heating 3D printer | |
| KR20150126624A (en) | Repositionable heater assemblies for glass production lines and methods of managing temperature of glass in production lines | |
| CN105039970A (en) | Dual-beam laser selective melting and moulding equipment with exchangeable powder cylinder | |
| CN105235218A (en) | Extrusion head device based on fused deposition modeling technology | |
| CN208991758U (en) | A kind of resistance hot molten metal silk material 3D printing system | |
| CN108907188A (en) | A kind of temperature control equipment and its control method for increasing material manufacturing | |
| US20200070415A1 (en) | 3d printing system for printing high melting temperature materials | |
| CN203945690U (en) | 3D printer based on fusion sediment rapid shaping technique | |
| CN203635917U (en) | Laser additive manufacturing equipment | |
| CN208682136U (en) | A kind of high temperature 3D printing head | |
| CN112643205A (en) | Laser joule composite heat source metal filament additive manufacturing device and method | |
| CN205673604U (en) | 3D print system and ejecting device thereof | |
| CN101549546A (en) | Temperature changing unit of micro injection molding die | |
| CN110154388A (en) | Three-dimensional printing system | |
| CN107718541A (en) | A kind of three-dimensional printer and its implementation | |
| CN201070836Y (en) | Resin heating system for photo-curing rapid-shaping | |
| CN105538698A (en) | 3D printer | |
| CN111037924A (en) | Non-planar hot bed for additive manufacturing and application thereof | |
| CN204109379U (en) | A kind of 3D printer | |
| CN204209977U (en) | The feed arrangement of three-dimensional printer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: 3D print head Effective date of registration: 20181114 Granted publication date: 20150805 Pledgee: China Co truction Bank Corp Guangzhou Liwan branch Pledgor: Guangzhou Li Zhu Electronic Science and Technology Co., Ltd. Registration number: 2018440000318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20190416 |