CN206999628U - A kind of quick replacement device of FDM3D printheads - Google Patents
A kind of quick replacement device of FDM3D printheads Download PDFInfo
- Publication number
- CN206999628U CN206999628U CN201720619185.3U CN201720619185U CN206999628U CN 206999628 U CN206999628 U CN 206999628U CN 201720619185 U CN201720619185 U CN 201720619185U CN 206999628 U CN206999628 U CN 206999628U
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- China
- Prior art keywords
- sprocket wheel
- extruder head
- discharging flange
- fdm3d
- discharge end
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Abstract
It the utility model is related to a kind of quick replacement device of FDM 3D printings head in 3D printing engineering device technique field,Including barrel,Coordinate in barrel and extrusion screw rod is installed,The discharge end thread seal of barrel is connected with extrusion sleeve,The discharge end central shaft of sleeve and the central shaft of feed end are extruded into 135 ° of angles,The discharge end of the extrusion sleeve is rotatably connected to discharging flange,The discharge end of the discharging flange is provided with four discharge openings,The central axis angle at 45 ° of each discharge opening and the charging hole of discharging flange,Each discharge opening of the discharging flange is connected to magnetic valve,Each magnetic valve is connected to extruder head,The discharging flange is connected with rotating drive mechanism,The working position that the rotating drive mechanism is used to drive discharging flange to rotate and drive corresponding extruder head to go to vertically downward realizes the quick-replaceable of extruder head.Device of the present utility model can realize the fast online replacement between various sizes of extruder head during 3D printing, to ensure printing effect and print quality.
Description
Technical field
It the utility model is related to 3D printing engineering device technique field, more particularly to a kind of FDM 3D printings for melting extrusion
The printhead quick replacement device of machine.
Background technology
With continuous exploration and innovation of the people to equipment manufacturing field so that 3D printing increasing material manufacturing is in each manufacturing field
Receive significant attention and popularization and application, wherein FDM 3D printing techniques are one of increasing material manufacturing major ways.In the prior art,
There are some bottlenecks in FDM, in Industrial Printing field when such as printing complicated product mold, because each position profile of identical product is big
Small to differ, during using same size printhead prints, efficiency and quality can not be taken into account.The larger mould of usual profile, if adopted
With small printhead prints, then efficiency is too low, and the big extruder head of diameter need to be used to carry out printing speed；And accurate position or smaller
Profile, product quality cannot be guaranteed using big printhead, it is necessary to be printed using the small extruder head of diameter, is protected with this
The print quality at each position is demonstrate,proved, therefore the printhead that different profiles needs matching diameter different is printed.Such one
Come, on the premise of print quality is ensured, in order to improve printing effect, it is necessary to according to the profile size of print position continually more
Change printhead.
In practical operation, if changing printhead using manual mode, replacing efficiency is low, not only has influence on and sets indirectly
Standby printing effect, the problem of being additionally, since resetting, easily cause print quality problem.Simultaneously as printhead temperature
Height, manual replacement operation are got up more difficult.Therefore, it is necessary to carry out the device changed automatically of mechanization to printhead to solve this
Class problem.
In the prior art, in Publication No. CN205439272U patent application document, promotion has supplied one kind to apply to FDM
The more changing device of 3D printer extruder head.The device is changed in print procedure, it is necessary to which printhead is moved on into specified location,
This moving process needs accurate alignment positioning, takes the time-write interval, influences printing effect.And due to change a time compared with
It is long, printed again in the case where the product surface temperature printed reduces, influence cementability between layers.In addition,
The printhead of replacing needs to heat, and otherwise extruded stock remaining in used printhead can not discharge.
Utility model content
The utility model is for problem present in the replacing of FDM3D printheads in the prior art, there is provided a kind of FDM 3D are beaten
The quick replacement device of head is printed, the quick-replaceable between various sizes of extruder head during 3D printing is realized, to ensure to print
Efficiency and print quality.
The purpose of this utility model is achieved in that a kind of quick replacement device of FDM 3D printings head, including barrel,
Coordinate in the barrel and extrusion screw rod is installed, the discharge end thread seal of the barrel is connected with extrusion sleeve, the extrusion
The discharge end of sleeve and the central axis of feed end are rotatably connected to discharging method into 135 o angles, the discharge end of the extrusion sleeve
Orchid, the discharge end of the discharging flange are provided with four discharge openings, the central axis of each discharge opening and the charging hole for the flange that discharges into
45o angles, each discharge opening of the discharging flange are connected to magnetic valve, and each magnetic valve is connected to extruder head, it is described go out
Material flange is connected with rotating drive mechanism, and the rotating drive mechanism is used to drive discharging flange to rotate and drive corresponding extrusion
The working position that head is gone to vertically downward realizes the quick-replaceable of extruder head.
The quick replacement device of FDM 3D printings head of the present utility model, with going out with four for extrusion sleeve rotation connection
Expect four various sizes of extruder heads can be installed on the discharging flange in hole, need for changing during 3D printing, discharge flange
By rotating drive mechanism drive connection, when the extruder head for needing size turns to working position vertically downward, electromagnetism is opened
Valve connects the tapping channel of the extruder head, when needing to change the extruder head of another size in print procedure, closes work
The magnetic valve of position, then certain angle is rotated by rotating Qu Yun mechanisms driving discharging flange, go to the extruder head of the size
Working position vertically downward, the magnetic valve of the working position is opened to print the extrusion passage of the extruder head, completes the fast of extruder head
Speed is changed.Extruder head fast replacing structure of the present utility model, when changing extruder head online, it is not necessary to remove printhead and print
Region, fast online replacement can be realized in current print position, knot has saved replacing construction significantly, each discharge opening for the flange that discharges
Between the temperature difference it is small, when changing extruder head, it is not necessary to extra preheating, without separately setting insulation construction.
For ease of realizing the rotational alignment function of discharging flange, the rotating drive mechanism is sprocket drive, including
Sprocket wheel one, sprocket wheel two, chain and the motor being connected with sprocket wheel two, the center of the sprocket wheel one are provided with from input to output end footpath
To the interior stepped hole to diminish, the interior stepped hole input large diameter section is rotatablely connected by sliding bearing and extrusion sleeve, institute
The discharge end periphery for stating extrusion sleeve coordinates the outer step to diminish provided with external diameter to be used to install sliding bearing inner ring；The sprocket wheel one
Interior stepped hole small internal diameter section and the outer step circumferential play of extrusion sleeve coordinate, discharging flange charging hole and the sprocket wheel one
The connection of output shaft end periphery thread seal.Rotation drive structure of the present utility model, sprocket wheel one drive discharging flange to rotate, can
So that the extruder head of position for needing to change is gone into working position vertically downward, the replacing of extruder head is realized.
Further, the motor is fixedly mounted in motor support plate, if the motor support plate by bolt stem with
The ram connection of 3D printing head, the motor output shaft are connected with sprocket wheel two, and the sprocket wheel one and sprocket wheel two are located at same installation
Connected in plane and by chain drive.
For ease of the axial restraint of device, pressing plate ring has been bolted on the end face of the input of the sprocket wheel one,
The inner side of the pressing plate ring and the outer ring of sliding bearing against；The extrusion sleeve is used for the outer of the outer step for installing sliding bearing
Week is provided with the check ring being used for axially against sliding bearing inner ring.
It is bolted with ram in the motor support plate for ease of the centre-to-centre spacing of accurate adjustment sprocket wheel one and sprocket wheel two
Position, which coordinates, is provided with some bolt mounting holes, and each bolt mounting holes are along sprocket wheel one and the bicentric line direction of sprocket wheel
Mounting hole, for adjusting the centre-to-centre spacing between sprocket wheel one and sprocket wheel two.
For ease of controlling the closing of the extruder head of the connection of working position extruder head and inoperative position, the magnetic valve is normally closed
Magnetic valve, the discharge end of each magnetic valve connect various sizes of extruder head respectively, and the extruder head in operating position is in vertical
Downward position, controlled and opened by control unit with the magnetic valve that the extruder head of operating position is connected.
To ensure discharging flange material cavity temperature uniformly to be further ensured that homogeneous molten state of the extruded stock in material intracavitary,
The material of the discharging flange and extruder head is brass or red copper.
Brief description of the drawings
Fig. 1 is the quick replacement device structural representation of FDM3D printheads of the present utility model.
Fig. 2 is the internal structure schematic diagram of the quick replacement device of FDM3D printheads of the present utility model.
Fig. 3 is the distribution schematic diagram of extruder head.
Wherein, 1 ram；2 motor support plates；3 motors；4 chains；5 discharging flanges；6 extrusion sleeves；7 barrels；8 extrusion spiral shells
Bar；9 sliding bearings；10 pressing plate rings；11 sprocket wheels one；12 magnetic valves；13 extruder heads；14 sprocket wheels two；15 check rings.
Embodiment
As shown in Figure 1-Figure 3, it is the quick replacement device of FDM3D printheads of the present utility model, including barrel 7, the material
Cylinder 7 is fixedly mounted on ram 1, and 3D printing feeding printing can be carried out with the synchronizing moving of ram 1, coordinate in barrel 7 be provided with it is crowded
Go out screw rod 8, and the end of extrusion screw rod 8 is concordant with the discharge end of barrel 7；The discharge end thread seal of barrel 7 is connected with crowded
Go out sleeve 6, the discharge end central shaft of the extrusion sleeve 6 and the central shaft of feed end extrude the discharge end of sleeve 6 into 135 o angles
Discharging flange 5 is rotatably connected to, the discharge end of discharging flange 5 is provided with four discharge openings, the charging of each discharge opening and discharging flange 5
The central axis in hole is connected to magnetic valve 12 into 45o angles, each discharge opening of discharging flange 5, and each magnetic valve 12 connects respectively
There is extruder head 13, discharging flange 5 is connected with rotating drive mechanism, and the rotating drive mechanism is used to drive discharging flange 5 to rotate simultaneously
The working position for driving corresponding extruder head to go to vertically downward realizes the quick-replaceable of extruder head.
The rotating drive mechanism of the present embodiment is sprocket drive, including sprocket wheel 1, sprocket wheel 2 14, chain 4 and with
The motor 2 that sprocket wheel 2 14 connects, the center of sprocket wheel 1 are provided with the interior stepped hole radially to diminish from input to output end, interior
Rank hole input large diameter section is rotatablely connected by sliding bearing 9 and extrusion sleeve 6, and the discharge end periphery of extrusion sleeve 6 coordinates
The inner ring for being used to install sliding bearing 9 provided with the outer step that external diameter diminishes；The small internal diameter section of the interior stepped hole of sprocket wheel 1 is with squeezing
The outer step circumferential play for going out sleeve 6 coordinates, and the charging hole for the flange 5 that discharges connects with the output shaft end periphery thread seal of sprocket wheel one
Connect.For ease of the axial restraint of device, pressing plate ring 10, pressing plate ring have been bolted on the end face of the input of sprocket wheel 1
10 inner side and the outer ring of sliding bearing 9 against；The periphery that extrusion sleeve 6 is used to install the outer step of sliding bearing 9 is provided with use
In the check ring 15 axially against the inner ring of sliding bearing 9.Rotation drive structure of the present utility model, sprocket wheel 1 drive discharging
Flange 5 is rotated, and the extruder head 13 for the position for needing to change can be gone to working position vertically downward, realize the fast of extruder head 13
Fast automatic replacing.For ease of the fixation of motor 3, motor 3 is fixedly mounted in motor support plate 2, and motor support plate 2 is by some
Bolt is connected with the ram 1 of 3D printing head, and the output shaft of motor 3 is connected with sprocket wheel 2 14, and sprocket wheel 1 and sprocket wheel 2 14 are located at
It is connected in same mounting plane and by chain 4.
For ease of the centre-to-centre spacing of accurate adjustment sprocket wheel 1 and sprocket wheel 2 14, in motor support plate 2 with the bolt connection of ram 1
Position coordinate and be provided with some bolt mounting holes, each bolt mounting holes is along the line directions of sprocket wheel 1 and the center of sprocket wheel 21
Mounting hole, for adjusting the centre-to-centre spacing between sprocket wheel 1 and sprocket wheel 2 14.
For ease of controlling the closing of the extruder head of the connection of working position extruder head 13 and inoperative position, magnetic valve 12 is from normal
Magnetic valve is closed, the discharge end of each magnetic valve connects various sizes of extruder head respectively, and the extruder head in operating position, which is in, to hang down
Straight downward position, is controlled by control unit with the magnetic valve that the extruder head of operating position is connected and opened.
To ensure discharging flange material cavity temperature uniformly to be further ensured that molten condition of the extruded stock in material intracavitary, discharging
The material of flange 5 and extruder head 13 is the fast brass of heat conduction or red copper.
The quick replacement device of FDM 3D printings head of the present utility model, there are four with what extrusion sleeve 6 was rotatablely connected
Four various sizes of extruder heads can be installed on the discharging flange 5 of discharge opening, needed for being changed during 3D printing, discharge method
Orchid 5, when needing to change extruder head, sprocket drive band is controlled by control system by rotating drive mechanism drive connection
Dynamic discharging flange 5 rotates certain angle, when the extruder head of specified size is turned to working position vertically downward, opens electromagnetism
Valve connects the tapping channel of the extruder head of the working position；When needing to change the extruder head of another size in print procedure, control
The position for the extruder head that system is closed the magnetic valve of working position and changed as needed automatically, control chain-wheel mechanism drive corresponding
Extruder head goes to working position and opens the magnetic valve of the working position again to connect extrusion passage, complete extruder head it is fast automatic more
Change.Extruder head fast replacing structure of the present utility model, when changing extruder head online, it is not necessary to which printhead is removed into print zone
Domain, fast online replacement can be realized in current print position, knot has saved replacing construction significantly, each discharge opening for the flange 5 that discharges
Between the temperature difference it is small, when changing extruder head, it is not necessary to extra preheating, without separately setting insulation construction.
The utility model is not limited to above-described embodiment, for example, rotating drive mechanism of the present utility model is not limited only to
The sprocket drive of the present embodiment, other rotating drive mechanisms with same driving effect can also be used, for example, gear
Drive mechanism, the dynamic mechanism of the relative extrusion sleeve of driving discharging flange can be realized with actuation etc..It is every in this practicality
On the basis of new disclosed technical scheme, those skilled in the art is according to disclosed technology contents, it is not necessary to creative
Work can some of which technical characteristic is made some replace and deformation, these replace and deformation this practicality newly
In the range of type protection.
Claims (7)
1. a kind of quick replacement device of FDM3D printheads, including barrel, the interior cooperation of the barrel is provided with extrusion screw rod, institute
The discharge end thread seal for stating barrel is connected with extrusion sleeve, it is characterised in that it is described extrusion sleeve discharge end central shaft with
The central shaft of feed end is rotatably connected to discharging flange into 135 o angles, the discharge end of the extrusion sleeve, the discharging flange
Discharge end is provided with four discharge openings, and the central axis of each discharge opening and the charging hole of discharging flange is into 45o angles, the discharging flange
Each discharge opening be connected to magnetic valve, each magnetic valve is connected to extruder head, and the discharging flange is connected with rotation and driven
Motivation structure, the rotating drive mechanism are used to drive discharging flange to rotate and drive corresponding extruder head to go to work vertically downward
The quick-replaceable of extruder head is realized as position.
2. the quick replacement device of FDM3D printheads according to claim 1, it is characterised in that the rotation driving machine
Structure is sprocket drive, including sprocket wheel one, sprocket wheel two, chain and the motor being connected with sprocket wheel two, the center of the sprocket wheel one
Provided with the interior stepped hole radially to diminish from input to output end, the interior stepped hole input large diameter section passes through sliding bearing
With extrusion sleeve rotation connection, the discharge end periphery of the extrusion sleeve coordinates the outer step to diminish provided with external diameter to be used to install cunning
Dynamic bearing inner ring；The small internal diameter section of the interior stepped hole of the sprocket wheel one and the outer step circumferential play of extrusion sleeve coordinate, described
Discharging flange charging hole is connected with the output shaft end periphery thread seal of sprocket wheel one.
3. the quick replacement device of FDM3D printheads according to claim 2, it is characterised in that the motor fixes peace
In motor support plate, if the motor support plate is connected by bolt stem with the ram of 3D printing head, the motor output
Axle is connected with sprocket wheel two, and the sprocket wheel one is located in same mounting plane with sprocket wheel two and connected by chain drive.
4. the quick replacement device of FDM3D printheads according to claim 2, it is characterised in that the sprocket wheel one it is defeated
Enter to be bolted on the end face at end pressing plate ring, the inner side of the pressing plate ring and the outer ring of sliding bearing against；It is described to squeeze
The periphery for going out outer step of the sleeve for installing sliding bearing is provided with the check ring being used for axially against sliding bearing inner ring.
5. the quick replacement device of FDM3D printheads according to claim 3, it is characterised in that the motor support plate
Upper to be provided with some bolt mounting holes for position bolted with ram cooperation, each bolt mounting holes are along sprocket wheel and chain
The mounting hole in bicentric line direction is taken turns, for adjusting the centre-to-centre spacing between sprocket wheel one and sprocket wheel two.
6. the quick replacement device of FDM3D printheads according to claim 2, it is characterised in that
The magnetic valve is normally closed solenoid valve, and the discharge end of each magnetic valve connects various sizes of extruder head respectively, in work
The extruder head of position is in position vertically downward, and the magnetic valve being connected with the extruder head of operating position is controlled by control unit
Open.
7. the quick replacement device of FDM3D printheads according to claim 2, it is characterised in that it is described discharging flange and
The material of extruder head is brass or red copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720619185.3U CN206999628U (en) | 2017-05-31 | 2017-05-31 | A kind of quick replacement device of FDM3D printheads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720619185.3U CN206999628U (en) | 2017-05-31 | 2017-05-31 | A kind of quick replacement device of FDM3D printheads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206999628U true CN206999628U (en) | 2018-02-13 |
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ID=61444134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720619185.3U Active CN206999628U (en) | 2017-05-31 | 2017-05-31 | A kind of quick replacement device of FDM3D printheads |
Country Status (1)
| Country | Link |
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| CN (1) | CN206999628U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973107A (en) * | 2017-05-31 | 2018-12-11 | 宁夏共享模具有限公司 | A kind of quick replacement device of FDM3D print head |
| CN110948871A (en) * | 2019-12-19 | 2020-04-03 | 安徽三绿实业有限公司 | Silk thread diameter adjusting device is used in production of 3D printing consumables |
| CN115157670A (en) * | 2022-06-21 | 2022-10-11 | 江苏乾度智造高科技有限公司 | Feeding system for industrial 3D printing |
-
2017
- 2017-05-31 CN CN201720619185.3U patent/CN206999628U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973107A (en) * | 2017-05-31 | 2018-12-11 | 宁夏共享模具有限公司 | A kind of quick replacement device of FDM3D print head |
| CN110948871A (en) * | 2019-12-19 | 2020-04-03 | 安徽三绿实业有限公司 | Silk thread diameter adjusting device is used in production of 3D printing consumables |
| CN115157670A (en) * | 2022-06-21 | 2022-10-11 | 江苏乾度智造高科技有限公司 | Feeding system for industrial 3D printing |
| CN115157670B (en) * | 2022-06-21 | 2023-12-22 | 江苏乾度智造高科技有限公司 | Feeding system for industrial 3D printing |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
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Address after: 750000 the Ningxia Hui Autonomous Region Yinchuan economic and Technological Development Zone ningshuo South Street No. 298 Patentee after: Shared Intelligent Equipment Co., Ltd. Address before: 750000 the Ningxia Hui Autonomous Region Yinchuan economic and Technological Development Zone ningshuo South Street No. 298 Patentee before: Ningxia Kocel Pattern Co., Ltd. |