CN108927992A - A kind of achieving automatic head replacement device of FDM printing device - Google Patents
A kind of achieving automatic head replacement device of FDM printing device Download PDFInfo
- Publication number
- CN108927992A CN108927992A CN201710391938.4A CN201710391938A CN108927992A CN 108927992 A CN108927992 A CN 108927992A CN 201710391938 A CN201710391938 A CN 201710391938A CN 108927992 A CN108927992 A CN 108927992A
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- Prior art keywords
- print head
- hole
- head
- gear
- transposition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
Abstract
The on-line automatic more changing device of print head is used for the present invention relates to a kind of in FDM 3D printing equipment technology field,Including extrusion axle and achieving automatic head replacement device,The discharge end of the extrusion axle is equipped with discharge hole,Discharge hole internal screw thread is connected with print head,Achieving automatic head replacement device includes print head fixing seat,Several mounting holes are placed in print head fixing seat,It is rotatablely connected respectively by the gear shaft of bearing and several intermeshing transmission gears in mounting hole,Driving motor is fixed in the rack,Driving gear is connected on the output shaft of the driving motor,The driving gear is engaged with a wherein transmission gear,The driving motor can move forward or reverse realizes rotating forward or rotating anyway for each transmission gear,The shaft end center of each transmission gear is equipped with the print head transposition hole of regular polygon,Print head is placed for cooperating in the print head transposition hole,The periphery of the print head lower part is equipped with the polygonal shape with print head transposition interporal lacuna cooperation.
Description
Technical field
The present invention relates to the print head auxiliary equipment technical fields of FDM 3D printing equipment, especially a kind of to exist for print head
Line apparatus for automatic change.
Background technique
Continuous exploration and innovation with people to equipment manufacturing field, so that 3D printing increasing material manufacturing is in each manufacturing field
It receives significant attention and promotes and applies, wherein FDM 3D printing technique is one of increasing material manufacturing major way.
It is generally threadedly coupled between the print head of FDM equipment and outlet, cohesive material could be squeezed out after heating.Mesh
Before, there are some bottlenecks in Industrial Printing field by FDM, when such as printing complicated product mold, due to each position wheel of identical product
Wide not of uniform size, when using same size printhead prints, efficiency and quality be cannot be considered in terms of.The biggish mold of usual profile, such as
Fruit uses small printhead prints, then efficiency is too low, and the big extruder head of diameter can be used and carry out printing speed；And accurate position or
Lesser profile cannot be guaranteed product quality using big print head, need to be printed using the small extruder head of diameter, with this
Guarantee the print quality at each position, therefore different profiles needs to match the different print head of diameter and printed.This
Sample one, in order to improve printing effect, needs frequent according to the profile size of print position under the premise of guaranteeing print quality
Replace print head in ground.
In practical operation, print head is replaced using manual mode, inefficiency is replaced, not only influences beating for equipment indirectly
Efficiency is printed, moreover, because easily causing print quality problem the problem of resetting；Also, printhead temperature is high, manually more
It changes more difficult.Therefore, people have developed the device replaced automatically to print head come such issues that solve.
In research before, a patent application was proposed, a kind of more changing device applying to FDM 3D printer extruder head,
Patent publication No. is CN205439272U.The device can be clamped print head using clamp system, realize achieving automatic head replacement, should
In invention device, print head replace when extruder head is directly placed in extruder head placing groove, be not carried out structure sealing and
Function is screwed when print head dismounts, after print head is changed, remaining printed material solidifies at normal temperature, print head is blocked,
If it is surplus to need manually to remove the remnants that print head cleans up in print head as when cleaning reuses the print head not in time
Material, will lead to print head do not connect or connect it is unstable, when can also print material leak the problem of.In the structure and
Printed material used by FDM printing device is plastic material, and printing principle is to become liquid after plastic material reaches fusing point,
Then the extrusion and printing of material are realized by extruder head.In whole printing process, need to carry out constantly plastic material
Heating.
Summary of the invention
The present invention provides a kind of FDM and prints and set for deficiency existing for the replacement apparatus structure of FDM print head in the prior art
Standby achieving automatic head replacement device is beaten with guaranteeing the automatic print head for rapidly replacing different size repeatedly in print procedure with improving
Print efficiency and print quality.
The object of the present invention is achieved like this, a kind of achieving automatic head replacement device of FDM printing device, including can be along X-axis, Y
Axis and the extrusion axle of Z-direction movement and the achieving automatic head replacement device being fixed on the rack, the discharge end of the extrusion axle are equipped with
Expect hole, the discharge hole internal screw thread is connected with print head, and the achieving automatic head replacement device includes print head fixing seat, the print head
It is placed with several mounting holes in fixing seat, passes through the tooth of bearing and several intermeshing transmission gears in the mounting hole respectively
Wheel shaft is rotatablely connected, and is fixed with driving motor in the rack, driving gear, institute are connected on the output shaft of the driving motor
It states driving gear to engage with a wherein transmission gear, the driving motor can move forward or reverse realizes each transmission gear
It rotates forward or rotates anyway, the shaft end center of each transmission gear is equipped with the print head transposition hole of regular polygon, described to beat
It prints head transposition hole and places print head for cooperating, the periphery of the print head lower part is equipped with and print head transposition interporal lacuna cooperation
Polygonal shape.
The achieving automatic head replacement device of FDM printing device of the invention, print head transposition hole are used to place the printing of different size
Head is replaced online when in case using, and the matching part between print head transposition hole and print head is the just more of clearance fit
Side shape structure had both been conveniently replaceable rapid abutting joint and taking-up when print head, print head and squeezed when also facilitating gear forward and reverse rotation
The dismounting of screw connection structure between the extrusion cavities of shaft.When needing replacing print head, print head can be with extrusion axle along X
Axis, Y-axis and Z axis are moved to the corresponding position of achieving automatic head replacement device, with the vacancy for not placing print head in print head fixing seat
Hole docking, driving motor drive the rotation of each gear, first unscrew the connection screw thread between print head and extrusion axle, and then extrusion axle is again
It is moved to the position of another placement print head for preparing replacement, drives print head rotation real by gear drive again after alignment
Existing print head and the screw thread of extrusion axle screw connection.
For the rotation dismounting for being easy to implement print head, the interior mounting hole etc. for being used to install print head of the print head fixing seat
One word of spacing is arranged, and is rotatablely connected a transmission gear respectively in each mounting hole, each transmission gear successively engages, the driving tooth
The transmission ratio of wheel and each transmission gear is 1：1.
For the cleaning discharge for being easy to implement remaining printed material in print head, the length direction two of the print head fixing seat
Side is respectively equipped with fire-bar, and print head transposition hole is along gear shaft axially through entire gear shaft.It is printed when needing replacing
When head, print head is first heated to by the temperature that printed material can melt by fire-bar in advance before changing, and in gravity
It is discharged under effect from the print head of perforation transposition hole lower part.
The one of transposition hole in each print head transposition hole of the print head fixing seat is vacancy hole for dismantling and storing
Print head in extrusion axle, remaining each print head transposition hole is for placing print head.
Detailed description of the invention
Fig. 1 is the achieving automatic head replacement device scheme of installation of FDM printing device of the invention.
Fig. 2 is the structural schematic diagram of achieving automatic head replacement device.
Fig. 3 is the left view of Fig. 2.
Wherein, 1 X-axis frame, 2 Y-axis frames；3 extrusion axles；4 achieving automatic head replacement devices；5 print heads；401 driving motors；
402 driving gears；403 spare print heads；404 bearings；405 print heads transposition hole；406 transmission gears；407 print heads are fixed
Seat；408 fire-bars.
Specific embodiment
It is as shown in Figure 1, Figure 2 and Figure 3 the achieving automatic head replacement device of FDM printing device of the invention, including can be along X-axis, Y-axis
Mobile extrusion axle 3 and the achieving automatic head replacement device 4 being fixed on the rack with Z-direction, the discharge end of extrusion axle 3 are equipped with discharging
Hole, discharge hole internal screw thread are connected with print head 5.In the present embodiment, extrusion axle 3 is mounted on Y-axis frame, can be along the Y of Y-axis frame
Axis direction is mobile, and Y-axis frame is straddled between two X-axis frames and can be moved along X-axis frame, and extrusion axle 3 itself can be along Z axis side
To movement, the print track of print head 5 can control extrusion axle 3 along X-axis, Y-axis and Z axis by the control unit of FDM printer
Movement is realized.Achieving automatic head replacement device 4 includes print head fixing seat 406, is placed with several mounting holes in print head fixing seat 406,
It is rotatablely connected respectively by the gear shaft of bearing 404 and several intermeshing transmission gears 405 in mounting hole, it is fixed in rack
There is driving motor 401, driving gear 402, driving gear 402 and wherein one biography are connected on the output shaft of driving motor 401
Moving gear 405 engages, and driving motor 41 can move forward or reverse realizes rotating forward or turning anyway for each transmission gear 405
Dynamic, the shaft end center of each transmission gear 405 is equipped with the print head transposition hole 405 of regular polygon, and print head transposition hole 405 is for matching
It closes and places print head, the periphery of print head lower part is equipped with the polygonal shape with print head transposition 405 clearance fit of hole, in order to
Print head cooperation is placed in print head transposition hole 405.
As shown in Fig. 2, being respectively equipped with A, B, C, D tetra- in print head fixing seat 406 for pacifying in the structure of the present embodiment
The mounting hole of print head is filled, and an equidistant word is arranged, is rotatablely connected a transmission gear 406 respectively in each mounting hole, respectively
Transmission gear 406 successively engages, driving gear 402 be mounted on the side of most marginal location A transmission gear and with the position
The transmission ratio of transmission gear engagement, driving gear 402 and each transmission gear is 1：1.When the 3D of a print module was printed
When needing replacing the print head of multiple and different specifications in journey, one is at least stayed in each print head transposition hole of print head fixing seat 407
A transposition hole is vacancy hole for dismantling and storing the print head in extrusion axle 3, remaining each print head transposition hole is for placing
The spare print head 403 of different size.
For convenient for by the cleaning of printed material remaining in print head be discharged, the length direction two of print head fixing seat 407
Side is respectively equipped with fire-bar 408, print head replace hole 405 along gear shaft axially through entire gear shaft, in order to print head
Interior salvage stores discharge.When needing replacing print head, first print head is heated to by fire-bar 408 in advance before changing
The temperature that printed material can melt, and be discharged under the effect of gravity from the lower part in the print head of perforation transposition hole.
The achieving automatic head replacement device of FDM printing device of the invention, print head transposition hole 405 is for placing beating for different size
Print head, in case use when replace online, and print head transposition hole and print head between matching part be clearance fit just
Polygonized structure had both been conveniently replaceable rapid abutting joint and taking-up when print head, when also facilitating gear forward and reverse rotation print head with
The dismounting of screw connection structure between the extrusion cavities of extrusion axle.When needing replacing print head, print head can be with extrusion axle along X
Axis, Y-axis and Z axis are moved to the corresponding position of achieving automatic head replacement device, with the sky for not placing print head in print head fixing seat 407
The docking of position hole, driving motor 401 drive each gear to rotate, first unscrew the connection screw thread between print head 5 and extrusion axle 3, then
Extrusion axle 3 is moved to the position of another spare print head 403 for preparing replacement again, is driven again by gear drive after alignment
Spare print head rotation is realized that spare print head is screwed with the screw thread of extrusion axle 3 and is connect, and completes the installation of print head in order under
The 3D printing of one step.Therefore the achieving automatic head replacement device of FDM printing device of the invention, during FDM 3D printing may be implemented,
On-line automatic replacement during the printhead prints of different size will can be printed by way of heating in advance before replacement
Salvage stores heating in head does not need other artificial participation except going out, may be implemented identical product different parts it is online not
Printing is shut down, realizes the printing effect and print quality of optimization.
The present invention is not limited to the above embodiments, all on the basis of technical solution disclosed by the invention, this field
Technical staff according to disclosed technology contents, some of which technical characteristic can be made by not needing creative labor
Some replacements and deformation out, these replacements and deformation are within the protection scope of the present invention.
Claims (4)
1. a kind of achieving automatic head replacement device of FDM printing device, including that along the extrusion axle that X-axis, Y-axis and Z-direction move and can consolidate
The discharge end of fixed achieving automatic head replacement device on the rack, the extrusion axle is equipped with discharge hole, and the discharge hole internal screw thread is connected with
Print head, which is characterized in that the achieving automatic head replacement device includes print head fixing seat, if being placed in the print head fixing seat
Dry mounting hole is rotatablely connected by the gear shaft of bearing and several intermeshing transmission gears in the mounting hole, institute respectively
State and be fixed with driving motor in rack, be connected with driving gear on the output shaft of the driving motor, the driving gear and its
In the engagement of transmission gear, the driving motor can move forward or reverse realizes rotating forward or anyway for each transmission gear
Rotation, the shaft end center of each transmission gear are equipped with the print head transposition hole of regular polygon, and print head transposition hole is used for
Print head is placed in cooperation, and the periphery of the print head lower part is equipped with the polygonal shape with print head transposition interporal lacuna cooperation.
2. the achieving automatic head replacement device of FDM printing device according to claim 1, which is characterized in that the print head is fixed
It arranges in seat for installing the equidistant word of mounting hole of print head, is rotatablely connected a transmission gear respectively in each mounting hole,
Each transmission gear successively engages, and the transmission ratio of the driving gear and each transmission gear is 1：1.
3. the achieving automatic head replacement device of FDM printing device described according to claim 21, which is characterized in that the printing
The length direction two sides of head fixing seat are respectively equipped with fire-bar, and print head transposition hole is along gear shaft axially through entire tooth
Wheel shaft.
4. the achieving automatic head replacement device of FDM printing device described according to claim 21, which is characterized in that the printing
The one of transposition hole in each print head transposition hole of head fixing seat is vacancy hole for dismantling and storing the print head in extrusion axle,
Remaining each print head transposition hole is for placing print head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710391938.4A CN108927992A (en) | 2017-05-27 | 2017-05-27 | A kind of achieving automatic head replacement device of FDM printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710391938.4A CN108927992A (en) | 2017-05-27 | 2017-05-27 | A kind of achieving automatic head replacement device of FDM printing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108927992A true CN108927992A (en) | 2018-12-04 |
Family
ID=64450890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710391938.4A Pending CN108927992A (en) | 2017-05-27 | 2017-05-27 | A kind of achieving automatic head replacement device of FDM printing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108927992A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113968010A (en) * | 2021-11-03 | 2022-01-25 | 镇江春环密封件集团有限公司 | Vertical extrusion equipment applied to marine polytetrafluoroethylene tube and working method thereof |
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| JP3184850U (en) * | 2013-05-09 | 2013-07-18 | 木谷信一 | Bolt / Nut Auxiliary Tool |
| CN104162987A (en) * | 2014-07-24 | 2014-11-26 | 合肥斯科尔智能科技有限公司 | Cleaning-type three-dimensional printer |
| US20150174824A1 (en) * | 2013-12-19 | 2015-06-25 | Karl Joseph Gifford | Systems and methods for 3D printing with multiple exchangeable printheads |
| CN205439272U (en) * | 2016-02-03 | 2016-08-10 | 宁夏共享模具有限公司 | It extrudes change device of head to apply to FDM 3D printer |
| US20160279853A1 (en) * | 2013-10-21 | 2016-09-29 | Micron 3Dp | Detachable Filament Guide And Nozzle Module For 3D Printers |
| CN207273877U (en) * | 2017-05-27 | 2018-04-27 | 宁夏共享模具有限公司 | A kind of achieving automatic head replacement device of FDM printing devices |
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2017
- 2017-05-27 CN CN201710391938.4A patent/CN108927992A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3184850U (en) * | 2013-05-09 | 2013-07-18 | 木谷信一 | Bolt / Nut Auxiliary Tool |
| US20160279853A1 (en) * | 2013-10-21 | 2016-09-29 | Micron 3Dp | Detachable Filament Guide And Nozzle Module For 3D Printers |
| US20150174824A1 (en) * | 2013-12-19 | 2015-06-25 | Karl Joseph Gifford | Systems and methods for 3D printing with multiple exchangeable printheads |
| CN104162987A (en) * | 2014-07-24 | 2014-11-26 | 合肥斯科尔智能科技有限公司 | Cleaning-type three-dimensional printer |
| CN205439272U (en) * | 2016-02-03 | 2016-08-10 | 宁夏共享模具有限公司 | It extrudes change device of head to apply to FDM 3D printer |
| CN207273877U (en) * | 2017-05-27 | 2018-04-27 | 宁夏共享模具有限公司 | A kind of achieving automatic head replacement device of FDM printing devices |
Non-Patent Citations (1)
| Title |
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| 刘利钊著, 新华出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113968010A (en) * | 2021-11-03 | 2022-01-25 | 镇江春环密封件集团有限公司 | Vertical extrusion equipment applied to marine polytetrafluoroethylene tube and working method thereof |
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