CN209409311U - 3D printer consumptive material extrusion mechanism - Google Patents
3D printer consumptive material extrusion mechanism Download PDFInfo
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- CN209409311U CN209409311U CN201920090379.8U CN201920090379U CN209409311U CN 209409311 U CN209409311 U CN 209409311U CN 201920090379 U CN201920090379 U CN 201920090379U CN 209409311 U CN209409311 U CN 209409311U
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- consumptive material
- wheel
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- driving
- extrusion mechanism
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Abstract
The utility model discloses a kind of 3D printer consumptive material extrusion mechanisms, including driving gear component and driven gear component, the driving gear component includes driving motor, drive sprocket axle and the driving wheel being mounted on the drive sprocket axle, the driven gear component includes follower shaft and the driven wheel that is mounted on the follower shaft, and the driving wheel is engaged with driven wheel by straight-tooth；The driven wheel is identical as active wheel construction, circumferentially arranged on the driving wheel/driven wheel circumferential surface to have first/second arc tooth socket, and an extrusion gap passed through for 3D printing consumptive material is limited between the first arc tooth socket and the second arc tooth socket.3D printer consumptive material extrusion mechanism, using double extrusion wheel constructions, the driving wheel and driven wheel engaged by straight-tooth is from double side acting on linear consumptive material, increase consumptive material frictional force suffered in extrusion process, extrusion balance, the stability of consumptive material improve, and then improve the printing precision of 3D printer and the quality of 3D printing part.
Description
Technical field
The utility model relates to 3D printer field of structural design, and in particular to a kind of 3D printer consumptive material extruder
Structure.
Background technique
With 3D printing technique in the industrial production using more and more extensive, user is to 3D printing part quality (as printed
Surface smoothness, dimensional accuracy of part etc.) requirement also increasingly improving.
Currently on the market based on the FDM printer of Deformation In The Fdm Process mode, consumptive material extrusion mechanism is all made of single extrusion
The structure of wheel, as shown in Figure 1, and squeezing out the flute profile on wheel 100 is vertical bar shaped tooth.
The 3D printer consumptive material extrusion mechanism of the existing structure, since an extrusion wheel is only arranged, linear consumptive material is being squeezed out
Only unilateral stress (squeezing out wheel side to the frictional force of consumptive material) in the process, squeezes out the flank of tooth and the consumptive material surface of the vertical bar shaped tooth on wheel
Contact be point contact, therefore, consumptive material is suffered in extrusion process, and friction is small, and balance is poor when squeezing out, and easily goes out
The wire feed wild effect of existing randomness, causes print procedure unusual fluctuations, so cause printout surface texture rough with
And there is apparent abnormal point on printout surface, the printing precision of 3D printer is unable to get guarantee.
Therefore, extremely urgent to the structure optimization of consumptive material extrusion mechanism to further increase FDM printing precision and quality.
Utility model content
In view of above the shortcomings of the prior art, the utility model provides a kind of 3D printer consumptive material extrusion mechanism,
To improve the extrusion stability of linear consumptive material, and then improve the quality of 3D printing part.
In order to solve the above technical problems, the technical solution adopted in the utility model is: providing a kind of 3D printer consumptive material
Extrusion mechanism, including shell are equipped with driving gear component and driven gear component on the housing, wherein
The driving gear component includes driving motor, drive sprocket axle and the driving wheel being mounted on the drive sprocket axle,
The driven gear component includes follower shaft and the driven wheel that is mounted on the follower shaft, the driving wheel and driven wheel
Pass through straight-tooth engaged transmission；
It is circumferentially arranged on the driving wheel circumferential surface to have the first arc tooth socket, it is circumferentially set on the driven wheel circumferential surface
It is equipped with the second arc tooth socket, one is limited between the first arc tooth socket and the second arc tooth socket and is passed through for 3D printing consumptive material
Squeeze out gap；
The first arc tooth socket includes the first arc groove being circumferentially arranged along driving wheel, in first arc groove
Surface on be provided with multiple first arc-shaped gears axially arranged side by side along driving wheel；The second arc tooth socket include along from
The second arc groove that driving wheel is circumferentially arranged, be provided on the surface of second arc groove along driven wheel axial direction side by side
Multiple second arc-shaped gears being arranged.
As the improvement to above scheme, the driving motor is stepper motor.
As the improvement to above scheme, it is connected with main drive gear on the driving wheel, is connected on the driven wheel
It is connected to from transmission gear, the main drive gear passes through straight-tooth engaged transmission with from transmission gear.
As the improvement to above scheme, the main drive gear is identical as from transmission gear structure.
As the improvement to above scheme, the main drive gear/from the modulus of transmission gear be set as 0.4mm~
1.0mm, the number of teeth are set as 15 teeth~23 teeth.
As the improvement to above scheme, the first transmission gear, first transmission are coaxially arranged with the driving wheel
Gear and the driving motor pass through straight-tooth engaged transmission.
As the improvement to above scheme, it is connected with the second transmission gear in the driving motor shaft, described first
Transmission gear and the second transmission gear pass through straight-tooth engaged transmission.
As the improvement to above scheme, the first arc tooth socket is identical as the second arc tooth slot structure.
As the improvement to above scheme, first arc groove/second arc groove depth be set as 0.3mm~
0.8mm, width are set as 1.2mm~2.5mm.
The utility model has the advantages that 3D printer provided by the utility model consumptive material extrusion mechanism is led to using double extrusion wheel constructions
Cross straight-tooth engagement driving wheel and driven wheel from double side acting on linear consumptive material, to linear consumptive material apply extrusion arc
Tooth socket can limit consumptive material to arc groove, and guiding performance is good, the arc-shaped gear of arcuate recess surface setting and connecing for consumptive material surface
Touching is that line contacts, and increases consumptive material frictional force suffered in extrusion process, and extrusion balance, the stability of consumptive material improve, into
And improve the printing precision of 3D printer and the quality of 3D printing part.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of 3D printer consumptive material extrusion mechanism in the prior art；
Fig. 2 is the structural schematic diagram of 3D printer consumptive material extrusion mechanism in the embodiment of the present application；
Fig. 3 is driving wheel/driven wheel structural schematic diagram in the embodiment of the present application.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
The utility model embodiment provides a kind of 3D printer consumptive material extrusion mechanism, for being based on Deformation In The Fdm Process
The FDM printer of mode, the two arc tooth sockets squeezed out on wheel engaged by straight-tooth are from two sides to the linear consumptive material of 3D printing
Applying extrusion force, increases consumptive material frictional force suffered in extrusion process, extrusion balance, the stability of consumptive material improve, into
And improve the printing precision of 3D printer and the quality of 3D printing part.
Referring to Fig. 2, Fig. 2 shows the knots of consumptive material extrusion mechanism of 3D printer described in the utility model embodiment
Structure, the 3D printer consumptive material extrusion mechanism include shell 10, be equipped on the shell 10 driving gear component and from
Movable tooth wheel assembly.
The driving gear component includes driving motor 21, drive sprocket axle 22 and the master being mounted on the drive sprocket axle 22
Driving wheel 23, the driven gear component includes follower shaft 32 and the driven wheel 33 that is mounted on the follower shaft 32, described
Driving wheel 23 and driven wheel 33 pass through straight-tooth engaged transmission.
The driving motor 21 is opened, drives the drive sprocket axle 22 to rotate, to drive the master mounted thereto
Driving wheel 23 rotates, and the driven wheel 33 and follower shaft 32 engaged with the driving wheel 23 is same with the rotation of the driving wheel 23
Step rotation.It should be understood that the rotation direction of the driving wheel 23 and the driven wheel 33 on the contrary, and the driving wheel 23 scheming
It is rotated in a clockwise direction in 2, the driven wheel 33 is rotated in the counterclockwise direction in Fig. 2.
It is circumferentially arranged on 23 circumferential surface of driving wheel to have the first arc tooth socket 230, on 33 circumferential surface of driven wheel
It is circumferentially arranged to have the second arc tooth socket 330, one is limited between the first arc tooth socket 230 and the second arc tooth socket 330
The extrusion gap passed through for 3D printing consumptive material.
Linear consumptive material is fed from the top of the extrusion mechanism into the gap, the driving wheel being rotated in a clockwise direction
23 apply downward extrusion force to the linear consumptive material with the driven wheel 33 being rotated in the counterclockwise direction, by the linear consumption
Material squeezes out.In the present embodiment, the diameter of the threadiness consumptive material is set as 1.5mm~2.0mm, it is possible to understand that, between the extrusion
Diameter of the width of gap no more than the linear consumptive material.
In the present embodiment, the driving wheel 23,33 structure of driven wheel are identical.This reality is shown please refer to Fig. 3, Fig. 3
Apply the structure of the driven wheel of driving wheel 23/ described in example 33, wherein the first arc tooth socket 230 includes circumferential along driving wheel 23
The first arc groove 2301 being arranged, be provided on the surface of first arc groove 2301 along driving wheel 23 axial direction simultaneously
Arrange multiple first arc-shaped gears 2302 of setting；The second arc tooth socket 330 includes the second arc being circumferentially arranged along driven wheel 33
Connected in star 3301 is provided with multiple along being axially arranged side by side for driven wheel 33 on the surface of second arc groove 3301
Second arc-shaped gear 3302.
The driving wheel 23 and driven wheel 33 on linear consumptive material, apply extrusion to linear consumptive material from double side acting
Arc tooth socket 230/330 can limit consumptive material to arc groove 2301/3301, and guiding performance is good, 2301/3301 table of arc groove
Face setting arc-shaped gear 2301/3301 contacted with the contact on consumptive material surface for line, increase consumptive material in extrusion process suffered by
Frictional force, extrusion balance, the stability of consumptive material improve.It should be understood that in other examples, the driving wheel 23,
33 structure of driven wheel can not also be identical.
In the present embodiment, the first arc tooth socket 230 is identical as 330 structure of the second arc tooth socket.Further, described
The depth of first arc groove, 2301/ second arc groove 3301 is set as 0.3mm~0.8mm, width be set as 1.2mm~
The depth of 2.5mm, preferably described first arc groove, 2301/ second arc groove 3301 are set as 0.3mm, and width is set as
1.8mm。
In the present embodiment, the driving motor 21 is stepper motor.
In the present embodiment, the first transmission gear 24, first transmission gear 24 are coaxially arranged with the driving wheel 23
It is fixedly mounted on the drive sprocket axle 22, first transmission gear 24 engages biography by straight-tooth with the driving motor 21
It is dynamic.The driving motor 21 is opened, first transmission gear 24 is driven to rotate, drive sprocket axle 22 described in synchronous drive and active
23 rotation of wheel.
Further, the second transmission gear 25, first transmission gear are connected in 21 shaft of driving motor
24 and second transmission gear 25 pass through straight-tooth engaged transmission.The driving motor 21 is opened, be connected on its machine shaft
The rotation of two transmission gears 25 drives first transmission gear 24 rotation engaged with second transmission gear 25.
In the present embodiment, it is connected with main drive gear 231 on the driving wheel 23, is connected on the driven wheel 33
From transmission gear 331, the main drive gear 231 with from transmission gear 331 by straight-tooth engaged transmission, thus, it is described driven
Wheel 33, follower shaft 32 are rotated synchronously with the rotation of the driving wheel 23.
In the present embodiment, the main drive gear 231 is identical as from 331 structure of transmission gear.Further, the main biography
Moving gear 231/ is set as 0.4mm~1.0mm from the modulus of transmission gear 331, and the number of teeth is set as 15 teeth~23 teeth, it is preferred that
The main drive gear 231/ is set as 0.5mm from the modulus of transmission gear 331, and the number of teeth is set as 17 teeth.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (9)
1. a kind of 3D printer consumptive material extrusion mechanism, including shell, which is characterized in that be equipped with driving tooth on the housing
Wheel assembly and driven gear component, wherein
The driving gear component includes driving motor, drive sprocket axle and the driving wheel being mounted on the drive sprocket axle, described
Driven gear component includes follower shaft and the driven wheel that is mounted on the follower shaft, and the driving wheel passes through with driven wheel
Straight-tooth engaged transmission；
It is circumferentially arranged on the driving wheel circumferential surface to have the first arc tooth socket, it is circumferentially arranged on the driven wheel circumferential surface to have
Second arc tooth socket limits an extrusion passed through for 3D printing consumptive material between the first arc tooth socket and the second arc tooth socket
Gap；
The first arc tooth socket includes the first arc groove being circumferentially arranged along driving wheel, in the table of first arc groove
Multiple first arc-shaped gears axially arranged side by side along driving wheel are provided on face；The second arc tooth socket includes along driven wheel
The second arc groove being circumferentially arranged, the axial direction being provided on the surface of second arc groove along driven wheel are arranged side by side
Multiple second arc-shaped gears.
2. 3D printer according to claim 1 consumptive material extrusion mechanism, which is characterized in that the driving motor is stepping
Motor.
3. 3D printer according to claim 1 consumptive material extrusion mechanism, which is characterized in that connected on the driving wheel
There is main drive gear, be connected on the driven wheel from transmission gear, the main drive gear passes through directly with from transmission gear
Tooth engagement transmission.
4. 3D printer according to claim 3 consumptive material extrusion mechanism, which is characterized in that the main drive gear with from
Transmission gear structure is identical.
5. 3D printer according to claim 4 consumptive material extrusion mechanism, which is characterized in that the main drive gear/from
The modulus of transmission gear is set as 0.4mm~1.0mm, and the number of teeth is set as 15 teeth~23 teeth.
6. 3D printer according to claim 1 consumptive material extrusion mechanism, which is characterized in that coaxially set with the driving wheel
It is equipped with the first transmission gear, first transmission gear and the driving motor and passes through straight-tooth engaged transmission.
7. 3D printer according to claim 6 consumptive material extrusion mechanism, which is characterized in that in the driving motor shaft
On be connected with the second transmission gear, first transmission gear and the second transmission gear pass through straight-tooth engaged transmission.
8. 3D printer according to claim 1 consumptive material extrusion mechanism, which is characterized in that the first arc tooth socket with
Second arc tooth slot structure is identical.
9. 3D printer according to claim 8 consumptive material extrusion mechanism, which is characterized in that first arc groove/
The depth of second arc groove is set as 0.3mm~0.8mm, and width is set as 1.2mm~2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920090379.8U CN209409311U (en) | 2019-01-21 | 2019-01-21 | 3D printer consumptive material extrusion mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920090379.8U CN209409311U (en) | 2019-01-21 | 2019-01-21 | 3D printer consumptive material extrusion mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209409311U true CN209409311U (en) | 2019-09-20 |
Family
ID=67944261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920090379.8U Active CN209409311U (en) | 2019-01-21 | 2019-01-21 | 3D printer consumptive material extrusion mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209409311U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112743845A (en) * | 2020-12-29 | 2021-05-04 | 深圳市创想三维科技有限公司 | 3D prints extrusion device and has its 3D printer |
| CN112923017A (en) * | 2021-01-29 | 2021-06-08 | 深圳市创想三维科技有限公司 | Multistage speed reduction extruder and 3D printing apparatus |
| WO2022110471A1 (en) * | 2020-11-26 | 2022-06-02 | 深圳市创想三维科技有限公司 | 3d printing extrusion device and 3d printer |
-
2019
- 2019-01-21 CN CN201920090379.8U patent/CN209409311U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022110471A1 (en) * | 2020-11-26 | 2022-06-02 | 深圳市创想三维科技有限公司 | 3d printing extrusion device and 3d printer |
| CN112743845A (en) * | 2020-12-29 | 2021-05-04 | 深圳市创想三维科技有限公司 | 3D prints extrusion device and has its 3D printer |
| CN112923017A (en) * | 2021-01-29 | 2021-06-08 | 深圳市创想三维科技有限公司 | Multistage speed reduction extruder and 3D printing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215000 third floor, No. 1, Liuzhuang Road, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Jiangsu ruilisi 3D Technology Co.,Ltd. Address before: 215000 third floor, No. 1, Liuzhuang Road, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: RUNICE TRANSMISSION SYSTEM (SUZHOU) Co.,Ltd. |
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| CP03 | Change of name, title or address |