CN203818587U - Three-dimensionalprinter - Google Patents
Three-dimensionalprinter Download PDFInfo
- Publication number
- CN203818587U CN203818587U CN201420241697.7U CN201420241697U CN203818587U CN 203818587 U CN203818587 U CN 203818587U CN 201420241697 U CN201420241697 U CN 201420241697U CN 203818587 U CN203818587 U CN 203818587U
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- printhead
- discharging opening
- reloads
- dimensional printer
- drive
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Abstract
The utility model relates to a three-dimensionalprinterwhich comprises a rack, a feeding device and a controller, wherein a print head controlled by the controller is movably mounted on the rack and comprises feeding wheelsand a feeding port; a reloading device comprises more than two conveying units, each conveying unit comprises conveying wheels, and a line cutter controlled by the controller is arranged nearby a discharging port of the conveying unit; the feeding device feeds a wire material to the conveying units; the print head can move relative to the reloading device in three-dimensional space, so that the feeding port of the print head is selectively abutted with the discharging port of any conveying unit selectively; and when the feeding port of the print head is abutted with the discharging port of one conveying unit, the feeding wheels are in transmission connection with the conveying wheels through a transmission wheel. According to the three-dimensionalprinter, the wire material is convenient to replace and multi-color printing is facilitated in a printing process, trouble of manual materialreplacement is reduced, and the printing continuity is guaranteed effectively.
Description
Technical field
The utility model relates to a kind of rapid molding device, particularly a kind of three-dimensional printer.
Background technology
Three-dimensional printer, is a kind of based on mathematical model, utilizes powdery metal or plastic or other material, constructs the equipment of three-dimensional body by the mode of successively printing.Wherein a kind of three-dimensional printer is to supply with moulding material with the form of filament to printhead, moulding material is heated to molten condition in electrically heated mode in printhead, the path that the printhead that printhead produces the controller according to three-dimensional printer moves relative to objective table, prints three-dimensional body in mode successively.
Notification number is to have described a kind of three-dimensional printer from silk material to printhead that supply with moulding material with in the background technology of patent documentation of CN1216726C, referring to Fig. 1, on filament cassette 011, be wound with silk material 013, and be installed in the rotating shaft 012 of three-dimensional printer filament cassette installing rack, thereby silk material 013 is offered to the printhead 015 of three-dimensional printer.In use, silk material 013 is pulled out from filament cassette 011, make the silk material being straightened by the conduit 014 of being made by the less material of frictional resistance, until silk material is supplied to the applicator wheel 0152 and 0153 being driven by motor 0154 on printhead 015, under the driving of applicator wheel 0152 and 0153, silk material 013 enters heating and melting chamber 0151, silk material is interior through being heated into the moulding material of molten condition in heating and melting chamber 0151, under the effect of follow-up silk material thrust, extrude and be deposited on objective table from the printing nozzle 01511 of being located at 0151 lower end, heating and melting chamber; The controller of three-dimensional printer moves in the X-Y plane of level by controlling printhead 015, controls objective table in vertical Z-direction motion simultaneously, thereby prints layer by layer three-dimensional body; In addition, the controller of three-dimensional printer is also being controlled the rotating speed of applicator wheel 0152 and 0153.If want to print the three-dimensional body of polychrome, must first from printhead 015, exit the silk material of a certain color, then change and be wound with the filament cassette of another color silk material and again carry out above-mentioned feed operation, make the printing of polychrome three-dimensional body become inefficiency; If the surplus deficiency of silk material in filament cassette, also needs to stop to print to change filament cassette operation, handling time is long, is not easy to carry out printing speed.
Publication No. is to have announced a kind of three-dimensional printer in the patent documentation of CN103481515A, referring to Fig. 2, this three-dimensional printer has printhead 03, print cartridge, objective table 04 and print cartridge installing rack 02, and print cartridge is made up of the filament cassette 021, filament cassette 022, filament cassette 023 and the filament cassette 024 that carry respectively different colours silk material.Referring to Fig. 3, printhead 03 is made up of printing nozzle, heater, feed arrangement and cooling device.In order to print polychrome three-dimensional body, the heater design of printhead 03 has heating and melting chamber 0321,0322,0323 and 0324, the printing nozzle 0311,0312,0313 and 0314 being communicated with the discharging opening of these four heating and melting chambers accordingly, the feed arrangement 0331,0332,0333 and 0334 being communicated with the charging aperture of four heating and melting chambers accordingly, and be installed on accordingly the cooling device 0341,0342,0343 and 0344 on the matrix of four heating and melting chambers.Integrated multiple printing nozzles and above-mentioned relevant device on printhead, cause whole printhead quality very large, reduce its response sensitivity, and cause vibrations in printhead break-in running, cause printing nozzle constantly to shake, there is ripple in the three-dimensional object surface printing, affects print quality; Excessive printhead quality also can be accelerated the wearing and tearing of printhead and guide rail Contact face; In addition, three-dimensional printer needs the artificial silk material of changing in print procedure.
Notification number is to have announced a kind of fast forming machine in the patent documentation of CN2382536Y, and it has charging gear, injection moulding head, drive unit, lifting workbench and control device; Charging gear has clamping device, tumbler, charge bar propulsion plant; Injection moulding head has fuel rod and puts chamber, heater and temperature sensor.In the course of the work, on clamping device, put the many fuel rods with different colours, drive clamping device rotation by tumbler, make one end of the fuel rod that will use aim at injection moulding head, by charge bar propulsion plant, fuel rod is advanced in Quick-forming head; Fuel rod enters raw material and puts behind chamber, and printhead relative workbench under the control of control device carries out spatial movement; By heater, fuel rod is heated to molten condition, under the pressure-acting of the pay-off of Quick-forming head, from the printing nozzle of printhead, sprays; Motion from the moulding material of the molten condition of printing nozzle ejection with printhead, thus on workbench, print three-dimensional body.In the time need to printing the fuel rod of other models or color, printhead move back charging gear under, by charging gear, the fuel rod of not printed in printhead is taken out, and put into corresponding fuel rod, automatically reload operation and carry out the printing of polychrome three-dimensional body thereby complete.The complex structure that reloads of this fast forming machine; In the process of reloading, control device need to control difference cylinder or motor carries out work, is not easy to the control to the process of reloading, and the speed of reloading is slow, is not easy to carry out printing speed.
Notification number is to have announced the automatic material-changing device of a kind of three-dimensional printer in the patent documentation of CN203293543U, there is support and be located at the feed pipe on support, on feed pipe, be provided with charging drive unit, support is connected with rotating disk by rotating shaft, in rotating shaft, be provided with rotating disk Driving Stepping Motor, on rotating disk, be provided with some passages, passage is from top to bottom fixed through rotating disk along the circumference of rotating disk, passage sidewall is provided with silk material checkout gear, be provided with material roller to material pipe top, on each material roller, be provided with material roller drive motors, silk material is wrapped on material roller and its head enters printing head inside through the feed pipe of passage box respectively downwards.This material-changing device is fixedly connected with printhead, along with printhead moves and moves, makes printhead also have larger quality, reduces its response sensitivity, cannot carry out printing speed; Due to large with the inertia of printhead motion parts, start, stop and break-in process in easily cause vibrations and affect print quality; This material-changing device is along with the increase of silk material number of colors, and the quality of printhead is corresponding increase also, and the motor number that controller need be controlled, also along with increase, has increased the complexity of controlling.
Summary of the invention
Main purpose of the present utility model is to provide a kind of three-dimensional printer of printing polychrome three-dimensional body and reloading be convenient to.
In order to realize above-mentioned main purpose, the three-dimensional printer that the utility model provides comprises frame, feeding device and controller, and the printhead being controlled by the controller is installed in frame movably, and printhead comprises applicator wheel and has a charging aperture; The device that reloads, this device that reloads comprises more than two feeding unit, and feeding unit comprises drawing-inroller, and the discharging opening of feeding unit is nearby provided with the thread cutter being controlled by the controller; Feeding device is supplied with silk material to feeding unit; Printhead can move relative to the device that reloads at three dimensions, so that the charging aperture of printhead docks separably with the discharging opening of arbitrary feeding unit selectively; Drive, in the time that the charging aperture of printhead and the discharging opening of feeding unit dock, applicator wheel and drawing-inroller are in transmission connection by drive.
From above scheme, when printhead reloads after device moves to the charging aperture of printhead and wherein the discharging opening of a feeding unit docks relatively, the rotation of controller control applicator wheel, drive drawing-inroller rotation by drive, thereby the silk material of being supplied with to feeding unit by feeding device is flowed to printhead, complete action from feeding unit to printhead that supplied with silk material by; Due to plural feeding unit being installed on the device that reloads, can cut off and need the silk of changing to expect by controller control thread cutter, controlling printhead device relative motion to the charging aperture of printhead and the discharging opening of another feeding unit that relatively reload docks, thereby realization is supplied with silk material and is replaced by another feeding unit to a printhead supply material from a feeding unit to printhead, complete the replacing action of silk material, be convenient to print multicolour forming part or reload; Controller only need be controlled the drive motors of the applicator wheel of printhead, just can complete the driving of carrying silk material from drawing-inroller to applicator wheel, simplifies the control of controller and the structure of the device that reloads.
A concrete scheme is, wherein, drive is installed on printhead, and drive and applicator wheel are in transmission connection.
Another concrete scheme is, wherein, drive is installed on feeding unit, and drive and drawing-inroller are in transmission connection.
One more specifically scheme be that being in transmission connection between drive and applicator wheel and drawing-inroller is that friction pulley is in transmission connection or gear drive is connected.
Another more specifically scheme be, discharging opening is the taper type discharging opening of an evagination, charging aperture is the taper type charging aperture of the indent that matches with taper type discharging opening shape; Or discharging opening is the taper type discharging opening of an indent, charging aperture is the taper type charging aperture of the evagination that matches with taper type discharging opening shape.The charging aperture alignment correction of discharging opening and printhead of device that is conducive to reload, and after aiming at, in feeding process, provide certain constraint spacing to the transmission between drive and applicator wheel and drawing-inroller, effectively guarantee the carrying out of feeding.
Another more specifically scheme be that the gearratio of applicator wheel and drive equals the gearratio of drawing-inroller and drive.Can effectively ensure that drawing-inroller is identical with the feeding speed of applicator wheel.
Another more specifically scheme be that the device that reloads is controlled by the controller along being installed on movably in frame perpendicular to the objective table in-plane of three-dimensional printer.
Preferably scheme is, the device that reloads is disc, and feeding unit is along the circumferential distribution of disc.
Preferred scheme is, the device that reloads is controlled by the controller can be along being parallel to objective table planar movement, and can be around the axial-rotation of disc.In the process of reloading, relatively the reload motion of device of printhead can be completed by the spatial movement of the device that reloads, and effectively guarantees that the printing of printhead is continuous.
Another more specifically scheme be, the device that reloads is rectangular flat, feeding unit by yi word pattern or array type be distributed on rectangular flat.
Brief description of the drawings
Fig. 1 is a kind of structural representation of existing three-dimensional printer;
Fig. 2 is the structure chart of another kind of existing three-dimensional printer;
Fig. 3 is the structural representation of printhead in Fig. 2;
Fig. 4 is the structure chart of the utility model the first embodiment;
Fig. 5 is the structural representation of the device that reloads of the utility model the first embodiment;
Fig. 6 is the structural representation of the printhead of the utility model the first embodiment;
Fig. 7 is the schematic diagram that the charging aperture of the printhead in the utility model the first embodiment is aimed at the discharging opening of the feeding unit of device that reloads;
Fig. 8 is the schematic diagram that the charging aperture of the printhead in the utility model the first embodiment docks with the discharging opening of the feeding unit of device that reloads;
Fig. 9 is the schematic diagram of the utility model the first embodiment print procedure;
Figure 10 is the schematic diagram of the thread cutter secant in the utility model the first embodiment;
Figure 11 is the schematic diagram that the charging aperture of the printhead in the utility model the first embodiment is aimed at the discharging opening of another feeding unit of device that reloads;
Figure 12 is the schematic diagram that the charging aperture of the printhead in the utility model the first embodiment docks with the discharging opening of another feeding unit of device that reloads.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Detailed description of the invention
The first embodiment
Referring to Fig. 4, this routine three-dimensional printer is made up of feeding device 1, the device 2 that reloads, printhead 3, objective table 4, frame 5 and controller; Feeding device 1 is made up of filament cassette installing rack and filament cassette 11, filament cassette 12, filament cassette 13, filament cassette 14, filament cassette 15 and filament cassette 16; Controller control printhead 3 moves in the X-Y plane of level, control objective table 4 simultaneously and the device 2 that reloads in the motion of vertical Z-direction; The device 2 that reloads is a disc, along the device 2 that reloads the first feeding unit 21, the second feeding unit 22, the 3rd feeding unit 23, the 4th feeding unit 24, the 5th feeding unit 25 and the 6th feeding unit is circumferentially installed in uniform way; Six filament cassettes on feeding device 1 are supplied with monochromatic silk material to six feeding units respectively.
Referring to Fig. 5, the first feeding unit 21 has drawing-inroller 211 and drawing-inroller 212, the second feeding units 22 have drawing-inroller 221 and drawing-inroller 222; Silk material 111 on filament cassette 11 is exported from the taper type discharging opening 213 of the first feeding unit 21 under drawing-inroller 211 coordinates with drawing-inroller 212; Silk material 121 on filament cassette 12 is exported from the taper type discharging opening 223 of the second feeding unit 22 under drawing-inroller 221 coordinates with drawing-inroller 222; Near taper type discharging opening 213, be provided with thread cutter 231, near taper type discharging opening 223, be provided with thread cutter 232.
Referring to Fig. 6, on printhead 3, be formed with a taper type charging aperture 36 docking separably with the taper type discharging opening of arbitrary feeding unit selectively, silk material is from taper type charging aperture 36 enters printhead 3, cooperation by applicator wheel 311 and applicator wheel 312 is sent into silk material in heating and melting chamber 34, moulding material is heated to molten condition by heater, and spray from printing nozzle 35 under the promotion of follow-up silk material; One drive 32 being in transmission connection with applicator wheel 311 is installed on printhead 3, and in the time that taper type discharging opening docks with taper type charging aperture 36, applicator wheel 311 drives the drawing-inroller rotation of reloading in unit by drive 32.
Wherein, being in transmission connection as gear drive is connected between drive 32 and drawing-inroller and applicator wheel 311, the gearratio of drawing-inroller and drive 32 equals the gearratio of applicator wheel 311 and drive 32.
Below taking feeding unit 21 and feeding unit 22 as example, this routine three-dimensional printer is described to printhead 3 feed and a process of changing silk material by the device 2 that reloads.
Referring to Fig. 7, controller control printhead 3 in X-Y horizontal plane, move to taper type charging aperture 36 be positioned at taper type discharging opening 213 under.
Referring to Fig. 8, the controller control device 2 that reloads docks with taper type charging aperture 36 along moving to taper type discharging opening 213 under Z-axis direction; Then controlling motor drives applicator wheel 311 to rotate, applicator wheel 311 drives drawing-inroller 211 to rotate by drive 32, thereby silk material 111 is sent in the taper type charging aperture 36 of printhead, under the effect of applicator wheel 311 and applicator wheel 312, entered in heating and melting chamber 34.
Referring to Fig. 9, after silk material 111 enters heating and melting chamber 34, the controller control device 2 that reloads moves upward along Z axis, and printhead 3 prints three-dimensional body with objective table 4 under the control of controller.
Referring to Figure 10, when needs, silk is expected to 111 while being replaced with silk material 121, controller control thread cutter 231 cuts off silk material 111, and the silk material that printhead 3 continues to be printed in printhead 3 runs out of.
Referring to Figure 11, controller control printhead 3 in X-Y horizontal plane, move to taper type charging aperture 36 be positioned at taper type discharging opening 223 under.
Referring to Figure 12, the controller control device 2 that reloads docks with taper type charging aperture 36 along moving to taper type discharging opening 223 under Z-axis direction; Then control applicator wheel 311 and rotate, applicator wheel 311 drives drawing-inroller 221 to rotate by drive 32, thereby silk material 121 is sent in taper type charging aperture 36, under the effect of applicator wheel 311 and applicator wheel 312, enters in heating and melting chamber 34.When silk material 121 enters behind heating and melting chamber 34, the controller control device 2 that reloads moves upward along Z axis, and printhead 3 prints three-dimensional body with objective table 4 under the control of controller.
In the time of silk material that silk material 111 and silk material 121 be different colours, the above-mentioned process of reloading is applicable to the replacing that the silk of different colours is expected, thereby can print polychrome three-dimensional body.In the time that silk material 111 and silk material 121 be identical silk material, the above-mentioned process of reloading is applicable to silk material surplus in filament cassette 11 when not enough, changes identical silk material, guarantee automatically to reload, and the trouble that minimizing is manually reloaded.
The second embodiment
As the explanation to the utility model the second embodiment, below only to describing with the difference of above-mentioned the first embodiment.The device that reloads is rectangular flat structure, and 6 feeding units are yi word pattern or array type is installed on rectangular flat.
The 3rd embodiment
As the explanation to the utility model the 3rd embodiment, below only to describing with the difference of above-mentioned the first embodiment.Objective table with reload device all relative frame fix, and printhead moves under the control of controller in X-Y-Z three dimensions; In the process of reloading, the relative motion of reloading between device and printhead completes by controller control printhead.
The 4th embodiment
As the explanation to the utility model the 4th embodiment, below only to describing with the difference of above-mentioned the first embodiment.Reload device under the control of controller in Y-Z two-dimensional space motion and the rotation around self central shaft rotate; In the process of reloading, printhead does not move, and reloads device in the motion of Y-Z face and printhead and the relative motion of reloading between device in the rotation of self central shaft realizes above-mentioned the first embodiment by control.
The 5th embodiment
As the explanation to the utility model the 5th embodiment, below only to describing with the difference of above-mentioned the first embodiment.Wherein being in transmission connection between drive and applicator wheel and drawing-inroller is friction pulley and is in transmission connection, and gearratio between applicator wheel and drive equals the gearratio between drawing-inroller and drive.
The 6th embodiment
As the explanation to the utility model the 6th embodiment, below only to describing with the difference of above-mentioned the first embodiment.The taper type discharging opening of feeding unit is inner concave shape, and the taper type charging aperture of printhead is the male type matching with it.
The 7th embodiment
As the explanation of the utility model the 7th embodiment, below only to describing with the difference of above-mentioned the first embodiment.Be located at the drive on printhead with the drive replacement of being located on each feeding unit, realize being in transmission connection between applicator wheel and drive.
Design of the present utility model is mainly by the device that reloads is set between printhead and feeding device, realizes and automatically changes silk material; Conceive according to the utility model, the color of the number of feeding unit, the number of filament cassette and carrying silk material thereof is determined by printing demand, do not limit to this detailed description of the invention, the structure of the device that reloads and the relative motion under the control of controller and between printhead thereof also have multiple apparent variation.
Claims (10)
1. three-dimensional printer, comprises frame, feeding device and controller, and the printhead that is subject to described controller control is installed in described frame movably, and described printhead comprises applicator wheel and has a charging aperture;
It is characterized in that:
The device that reloads, described in the device that reloads comprise plural feeding unit, described feeding unit comprises drawing-inroller, the discharging opening of described feeding unit is nearby provided with the thread cutter that is subject to described controller control;
Described feeding device is supplied with silk material to described feeding unit;
Described printhead can three dimensions relative to described in the device that reloads move so that described charging aperture docks separably with arbitrary described discharging opening selectively;
Drive, in the time that described discharging opening docks with described charging aperture, described applicator wheel and described drawing-inroller are in transmission connection by described drive.
2. three-dimensional printer according to claim 1, is characterized in that:
Described drive is installed on described printhead, and described drive and described applicator wheel are in transmission connection.
3. three-dimensional printer according to claim 1, is characterized in that:
Described drive is installed on described feeding unit, and described drive and described drawing-inroller are in transmission connection.
4. according to three-dimensional printer described in claims 1 to 3 any one, it is characterized in that:
Described be in transmission connection for friction pulley be in transmission connection or gear drive connect.
5. according to three-dimensional printer described in claims 1 to 3 any one, it is characterized in that:
Described discharging opening is the taper type discharging opening of an evagination, and described charging aperture is the taper type charging aperture of the indent that matches with described taper type discharging opening shape;
Or,
Described discharging opening is the taper type discharging opening of an indent, and described charging aperture is the taper type charging aperture of the evagination that matches with described taper type discharging opening shape.
6. according to three-dimensional printer described in claims 1 to 3 any one, it is characterized in that:
The gearratio of described applicator wheel and described drive equals the gearratio of described drawing-inroller and described drive.
7. according to three-dimensional printer described in claims 1 to 3 any one, it is characterized in that:
The described device that reloads is subject to described controller control along being installed on movably in described frame perpendicular to objective table in-plane.
8. three-dimensional printer according to claim 7, is characterized in that:
The described device that reloads is disc, and described feeding unit is along the circumferential distribution of described disc.
9. three-dimensional printer according to claim 8, is characterized in that:
The described device that reloads is subject to the described controller control can be along being parallel to described objective table planar movement, and can be around the axial-rotation of described disc.
10. according to three-dimensional printer described in claims 1 to 3 any one, it is characterized in that:
The described device that reloads is rectangular flat, described feeding unit by yi word pattern or array type be arranged on described rectangular flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241697.7U CN203818587U (en) | 2014-05-12 | 2014-05-12 | Three-dimensionalprinter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241697.7U CN203818587U (en) | 2014-05-12 | 2014-05-12 | Three-dimensionalprinter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203818587U true CN203818587U (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420241697.7U Withdrawn - After Issue CN203818587U (en) | 2014-05-12 | 2014-05-12 | Three-dimensionalprinter |
Country Status (1)
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| CN (1) | CN203818587U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950202A (en) * | 2014-05-12 | 2014-07-30 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer |
| CN104441656A (en) * | 2014-11-03 | 2015-03-25 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer and printing method thereof |
| CN104690967A (en) * | 2015-02-02 | 2015-06-10 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer and three-dimensional printing method |
| CN106393691A (en) * | 2016-11-30 | 2017-02-15 | 金华市易立创三维科技有限公司 | Feeding device and three-dimensional (3D) printer |
| CN106891521A (en) * | 2017-05-05 | 2017-06-27 | 郑州科技学院 | 3D printing rotary-type polychrome extrusion system and supporting polychrome 3D printing method |
| CN110524871A (en) * | 2019-09-17 | 2019-12-03 | 金陵科技学院 | A kind of FDM type 3D printer automatic filament replacing device using Geneva mechanism |
-
2014
- 2014-05-12 CN CN201420241697.7U patent/CN203818587U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950202A (en) * | 2014-05-12 | 2014-07-30 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer |
| CN103950202B (en) * | 2014-05-12 | 2016-09-28 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer |
| CN104441656A (en) * | 2014-11-03 | 2015-03-25 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer and printing method thereof |
| CN104690967A (en) * | 2015-02-02 | 2015-06-10 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer and three-dimensional printing method |
| CN106393691A (en) * | 2016-11-30 | 2017-02-15 | 金华市易立创三维科技有限公司 | Feeding device and three-dimensional (3D) printer |
| CN106393691B (en) * | 2016-11-30 | 2018-07-13 | 金华市易立创三维科技有限公司 | A kind of feed device and 3D printer |
| CN106891521A (en) * | 2017-05-05 | 2017-06-27 | 郑州科技学院 | 3D printing rotary-type polychrome extrusion system and supporting polychrome 3D printing method |
| CN106891521B (en) * | 2017-05-05 | 2023-08-08 | 郑州科技学院 | Rotating wheel type multicolor extrusion system for 3D printing and matched multicolor 3D printing method |
| CN110524871A (en) * | 2019-09-17 | 2019-12-03 | 金陵科技学院 | A kind of FDM type 3D printer automatic filament replacing device using Geneva mechanism |
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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: 20140910 Effective date of abandoning: 20160928 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |