CN206217178U - A kind of 3D printer consumptive material extrusion mechanism of adjustable moment of torsion - Google Patents
A kind of 3D printer consumptive material extrusion mechanism of adjustable moment of torsion Download PDFInfo
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- CN206217178U CN206217178U CN201621044721.3U CN201621044721U CN206217178U CN 206217178 U CN206217178 U CN 206217178U CN 201621044721 U CN201621044721 U CN 201621044721U CN 206217178 U CN206217178 U CN 206217178U
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- driven wheels
- torsion
- housing
- moment
- consumptive material
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Abstract
The utility model discloses a kind of 3D printer consumptive material extrusion mechanism of adjustable moment of torsion, including feed device, stepper motor, the feed device includes the 3rd housing with feed well and discharging interface, the material-feeding rolling wheels and feeding gear being oppositely disposed in the 3rd housing, the stepper motor and feeding gear drive connection, are additionally provided with the changer for changing feeding gear moment of torsion by stirring switching position of the switch change gear drive path between the stepper motor and feed device.The utility model solves the motor when wire feed moment of torsion is too small and loses step and acutely shake by way of change gear drive path changes moment of torsion, and then causes the abnormal problem of heating head wire vent, can be improved the surface quality and internal soundness of printout.
Description
Technical field
The utility model is related to 3D printing field, more particularly to a kind of adjustable moment of torsion 3D printer consumptive material extruder
Structure, changes extruder moment of torsion in the way of teeth change train, reaches the purpose for adjusting wire feed moment of torsion on a large scale, so as to solve common
FDM 3D printers cannot change the problem of its operation torque by adjusting extruder structure.
Background technology
FDM formula consumptive material extruders on the market now, either long-range wire feed or short range wire feed, its running part is mechanical
Structure is unadjustable, i.e., when the moment of torsion of its motor for using determines, its wire feed moment of torsion just determines therewith, it is impossible to by adjustment
Extruder structure changes its operation torque.When wire feed moment of torsion is too small, motor can be caused to lose step and acutely shake（Specific manifestation
Suddenly invert for motor, send violent noise）, and then cause heating head wire vent exception（Be embodied in wire vent intermittently or
Person's wire vent is meticulous）, the serious surface quality for reducing printout（There is hole etc.）And internal soundness（Fill uneven etc.）.In height
When speed printing, because wire feed rate is fast, hot melt cavity pressure increases, and causes required wire feed moment of torsion to increase into multiple, on
State the particularly evident of situation performance.Although existing extruder, moment of torsion can be adjusted by changing the methods such as current of electric,
It is that its adjustable range is extremely limited, and when current is excessive, it is serious to cause that the motor feels hot, it is possible to cause motor because losing
Magnetic and lose step.
Utility model content
The utility model aims to solve the problem that common FDM 3D printers cannot change its work by adjusting extruder structure
A kind of problem of moment of torsion, it is proposed that the 3D printer consumptive material extruder of adjustable moment of torsion.
The utility model adopts the following technical scheme that realization：
A kind of 3D printer consumptive material extrusion mechanism of adjustable moment of torsion, including feed device, stepper motor, the feeding dress
Put including the 3rd housing with feed well and discharging interface, the material-feeding rolling wheels being oppositely disposed in the 3rd housing and send
Material gear, the stepper motor and feeding gear drive connection, are additionally provided between the stepper motor and feed device and pass through
Stir the changer that switching position of the switch change gear drive path changes feeding gear moment of torsion.
Further, described changer includes being fixedly connected to form first housing and the second housing of cavity, is arranged on
Changeable gear train, the promotion changeable gear train in the cavity changes the rocker frame mechanism of drive path, the switching
Switch extends to the first hull outside and connects the rocker frame mechanism by spring, and described feed device is fixed on the second housing
On.
Further, described changeable gear train includes being respectively provided with drive wheel group, first driven pulley of coaxial large and small wheel
Group, the second driven wheels, the 3rd driven wheels, described drive wheel group are connected with the output shaft of stepper motor, and described first
Driven wheels, the second driven wheels, the 3rd driven wheels are rotatably arranged on the rocker frame mechanism by three D word axles respectively,
Wherein, connect D word axles one end of the 3rd driven wheels also with feeding gear drive connection.
Further, when switching switch and swinging to first position, the steamboat of the drive wheel group and the first driven wheels
Bull wheel is meshed, and the steamboat of the first driven wheels is meshed with the bull wheel of the 3rd driven wheels；When switching switch swings to second
When putting, the bull wheel of the drive wheel group is meshed with the bull wheel of the second driven wheels, the steamboat of the second driven wheels and the 3rd from
The bull wheel of driving wheel group is meshed.
Further, described rocker frame mechanism includes the first rocker and the second rocker that are fixedly connected, first rocker
And second to be connected between rocker and install first driven wheels, the second driven wheels, the 3rd for being arranged with parallel
Three D word axles of driven wheels, the first rocker rear end is symmetrical arranged two springs, and two springs switch phase with switching respectively
Connection.
Further, the first described housing side is provided with the positioner for the fixed switching position of the switch.
Further, described positioner includes block, and the block lower end is hinged on the first housing by hinge,
Upper end is fixed on the first housing by screw or pin.
Further, described positioner includes fixture block plate, pull bar, the switching handle of connection switching switch, described
Ratchet-like fixture block is evenly arranged with fixture block plate along its length, the pull bar is vertical with fixture block plate middle part to be connected, described card
The two ends of block plate are provided with the back-moving spring for making switching handle be fitted with fixture block plate all the time.
Further, described stepper motor is using 42 serial stepper motors.
Compared to existing technology, the utility model has the advantages that：
The utility model solves the electricity when wire feed moment of torsion is too small by way of change gear drive path changes moment of torsion
Machine is lost step and is acutely shaken（Motor is embodied in invert suddenly, send violent noise）, and then cause heating head wire vent exception
（It is embodied in that wire vent is intermittent or wire vent is meticulous）Problem, can obtain the surface quality and internal soundness of printout
To raising.When flying print, because wire feed rate is fast, hot melt cavity pressure increases, cause required wire feed moment of torsion into
Multiple increases, and this utility model can solve the above problems, and reaches the purpose for adjusting wire feed moment of torsion on a large scale.
Brief description of the drawings
Fig. 1 is the 3D printer consumptive material extruder general assembly drawing of the adjustable moment of torsion of the utility model embodiment one.
Fig. 2 is the feed device installation diagram of the utility model embodiment one.
Fig. 3 is the changer installation diagram of the utility model embodiment one.
Fig. 4 is the changeable gear train installation diagram of the utility model embodiment one.
Fig. 5 is the small torque gear system transmission schematic diagram of the utility model embodiment one.
Fig. 6 be in Fig. 5 A-A to schematic cross-sectional view.
Fig. 7 is the high pulling torque gear train schematic diagram of the utility model embodiment one.
Fig. 8 is B-B direction schematic cross-sectional view in Fig. 7.
Fig. 9 is the positioner schematic diagram of the utility model embodiment two.
It is shown in figure：1- stepper motors；The housings of 2- first；The housings of 3- second；The housings of 4- the 3rd；5- feeding gears；6-
Material-feeding rolling wheels；The rockers of 7- first；The rockers of 8- second；9- drive wheel groups；The driven wheels of 10- first；The driven wheels of 11- second；12-
3rd driven wheels；13- springs；14- switching switches；15- locating pieces；16- air pipe interfaces；17-D word axles；18- back-moving springs；
19- switches handle；20- pull bars；21- fixture block plates.
Specific embodiment
The purpose of this utility model is described in further detail below by specific embodiment, embodiment can not be herein
Repeat one by one, but therefore implementation method of the present utility model is not defined in following examples.
Embodiment one
A kind of 3D printer consumptive material extrusion mechanism of adjustable moment of torsion, including feed device, stepper motor 1, described step
Using 42 serial stepper motors, the feed device includes the 3rd housing 4, phase with feed well and discharging interface to stepper motor 1
Material-feeding rolling wheels 6 and feeding gear 5 in the 3rd housing 4 are arranged on over the ground, and the stepper motor 1 drives with feeding gear 5
Connection, is additionally provided between the stepper motor 1 and feed device and is driven road by stirring the position change gear of switching switch 14
Footpath changes the changer of the moment of torsion of feeding gear 5.
Specifically, described changer includes being fixedly connected to form first housing 2 and the second housing 3 of cavity, sets
Changeable gear train, the promotion changeable gear train in the cavity changes the rocker frame mechanism of drive path, described to cut
Change switch 14 to extend to the outside of the first housing 2 and connect the rocker frame mechanism by spring 13, described feed device is fixed on
On second housing 3.
Specifically, described changeable gear train includes that the drive wheel group 9, first for being respectively provided with coaxial large and small wheel is driven
Wheel group 10, the second driven wheels 11, the 3rd driven wheels 12, described drive wheel group 9 are connected with the output shaft of stepper motor 1
Connect, first driven wheels 10, the second driven wheels 11, the 3rd driven wheels 12 are rotated by three D words axles 17 set respectively
Put on the rocker frame mechanism, wherein, the one end of D words axle 17 for connecting the 3rd driven wheels 12 also drives with feeding gear 5
Connection.
Specifically, as shown in fig. 6, when switching switch 14 swings to first position, the steamboat of the drive wheel group 9 and the
The bull wheel of one driven wheels 10 is meshed, and the steamboat of the first driven wheels 10 is meshed with the bull wheel of the 3rd driven wheels 12, the
Three driven wheels 12 are connected by D words axle 17 with feeding gear 5, so as to improve the moment of torsion of feeding gear 5；As shown in figure 5, work as cutting
Switch 14 is changed when swinging to the second place, the bull wheel of the drive wheel group 9 is meshed with the bull wheel of the second driven wheels 11, second from
The steamboat of driving wheel group 11 is meshed with the bull wheel of the 3rd driven wheels 12, and the 3rd driven wheels 12 are by D words axle 17 and feeding tooth
Wheel 5 is connected, so as to reduce the moment of torsion of feeding gear 5, improves wire feed rate.
Specifically, described rocker frame mechanism includes the first rocker 7 and the second rocker 8 that are fixedly connected, first pendulum
It is connected between the rocker 8 of frame 7 and second for being arranged with installation first driven wheels 10, the second driven wheels in parallel
11st, three D words axles 17 of the 3rd driven wheels 12, the rear end connecting spring 13 of first rocker 7, the middle part of the spring 13 with cut
Switch 14 is changed to be connected.
Specifically, the described side of the first housing 2 is provided with the positioner for fixed 14 positions of switching switch, institute
The positioner stated includes block 15, and the lower end of the block 15 is hinged on the first housing 2 by hinge, upper end by screw or
Pin is fixed on the first housing 2.
Equilbrium position is in when switching switch 14 is swung in the middle of groove with two springs 13 being connected of switching switch 14, when cutting
Meeting 14 is changed when swinging to diverse location, two springs are stretched and compressed respectively, so that the engagement between gear train is compressed, installed
Block 15 on the first housing 2 can block switching switch 14, it is ensured that be engaged all the time during pinion rotation.
Consumptive material enters feed well by air pipe interface 16 during charging, and then the blow tank that is pressed through by feeding gear 5 is arrived
Another air pipe interface, completes feeding operation.
Embodiment two
As described in Figure 7, the present embodiment is with the difference of the embodiment one：Described positioner includes fixture block plate
21st, pull bar 20, the switching handle 19 of connection switching switch 14, ratchet is evenly arranged with described fixture block plate 21 along its length
Shape fixture block, the pull bar 20 is vertical with the middle part of fixture block plate 21 to be connected, and the two ends of described fixture block plate 21 are provided with and make switching handle
19 back-moving springs 18 for being fitted with fixture block plate 21 all the time.
The present embodiment can realize many level conversions of gear train by adjusting the switching position of the switch, increase adjusting range.Effect
Mechanism is：Switching handle 19 is in middle initial position, when needing to turn down moment of torsion, will switching handle 19 along fixture block plate 21 to
On move to first fixture block, compress back-moving spring 18, handle sticks into triangle fixture block, is adjacent to one of right-angle surface,
Form self-locking action.Tune up torquing step as above.When needing to return to initial position, pull bar 20 need to only be drawn away, pressure
Contracting back-moving spring 18, allows switching handle 19 to be removed from triangle fixture block, returns to initial position.
Above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and is not
Restriction to implementation method of the present utility model.For those of ordinary skill in the field, on the basis of described above
On can also make other changes in different forms.There is no need and unable to be exhaustive to all of implementation method.
All any modification, equivalent and improvement made within spirit of the present utility model and principle etc., should be included in this reality
Within new scope of the claims.
Claims (9)
1. a kind of 3D printer consumptive material extrusion mechanism of adjustable moment of torsion, including feed device, stepper motor (1), the feeding
Device includes the 3rd housing (4) with feed well and discharging interface, the feeding being oppositely disposed in the 3rd housing (4)
Roller (6) and feeding gear (5), the stepper motor (1) and feeding gear (5) drive connection, it is characterised in that：The stepping
Motor (1) is additionally provided with and feed device between and changes feeding by stirring switching switch (14) position change gear drive path
The changer of gear (5) moment of torsion.
2. the 3D printer consumptive material extrusion mechanism of adjustable moment of torsion according to claim 1, it is characterised in that：Described tune
Parallel operation includes the first housing (2) and the second housing (3) that are fixedly connected to form cavity, the changeable tooth being arranged in the cavity
Train, the rocker frame mechanism for promoting the changeable gear train change drive path, switching switch (14) extend to first shell
Body (2) is outside and connects the rocker frame mechanism by spring (13), and described feed device is fixed on the second housing (3).
3. the 3D printer consumptive material extrusion mechanism of adjustable moment of torsion according to claim 2, it is characterised in that：Described can
Teeth change train includes being respectively provided with drive wheel group (9), the first driven wheels (10), second driven wheels of coaxial large and small wheel
(11), the 3rd driven wheels (12), described drive wheel group (9) is connected with the output shaft of stepper motor (1), described first from
Driving wheel group (10), the second driven wheels (11), the 3rd driven wheels (12) are rotatably arranged on institute by three D words axle (17) respectively
State on rocker frame mechanism, wherein, D words axle (17) one end for connecting the 3rd driven wheels (12) also drives with feeding gear (5)
Connection.
4. the 3D printer consumptive material extrusion mechanism of adjustable moment of torsion according to claim 3, it is characterised in that：When switching is opened
When pass (14) swings to first position, the steamboat of the drive wheel group (9) is meshed with the bull wheel of the first driven wheels (10), and first
The steamboat of driven wheels (10) is meshed with the bull wheel of the 3rd driven wheels (12)；When switching switch (14) swings to the second place
When, the bull wheel of the drive wheel group (9) is meshed with the bull wheel of the second driven wheels (11), the steamboat of the second driven wheels (11)
Bull wheel with the 3rd driven wheels (12) is meshed.
5. the 3D printer consumptive material extrusion mechanism of adjustable moment of torsion according to claim 3, it is characterised in that：Described pendulum
Frame mechanism includes the first rocker (7) and the second rocker (8) that are fixedly connected, between first rocker (7) and the second rocker (8)
It is connected with for being arranged with installation first driven wheels (10), the second driven wheels (11), the 3rd driven pulley in parallel
Three D words axle (17) of group (12), the first rocker (7) rear end is symmetrical arranged two springs (13), two springs (13) point
It is not connected with switching switch (14).
6. the 3D printer consumptive material extrusion mechanism of adjustable moment of torsion according to claim 2, it is characterised in that：Described
One housing (2) side is provided with the positioner for fixed switching switch (14) position.
7. the 3D printer consumptive material extrusion mechanism of adjustable moment of torsion according to claim 6, it is characterised in that：Described determines
Position device includes block (15), and block (15) lower end is hinged on the first housing (2) by hinge, upper end by screw or
Pin is fixed on the first housing (2).
8. the 3D printer consumptive material extrusion mechanism of adjustable moment of torsion according to claim 6, it is characterised in that：Described determines
Position device includes fixture block plate (21), pull bar (20), the switching handle (19) of connection switching switch (14), described fixture block plate (21)
On be evenly arranged with ratchet-like fixture block along its length, the pull bar (20) is vertical with fixture block plate (21) middle part to be connected, described
The two ends of fixture block plate (21) are provided with the back-moving spring (18) for making switching handle (19) be fitted with fixture block plate (21) all the time.
9. the 3D printer consumptive material extrusion mechanism of adjustable moment of torsion according to claim 1, it is characterised in that：Described step
Stepper motor (1) is using 42 serial stepper motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621044721.3U CN206217178U (en) | 2016-09-08 | 2016-09-08 | A kind of 3D printer consumptive material extrusion mechanism of adjustable moment of torsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621044721.3U CN206217178U (en) | 2016-09-08 | 2016-09-08 | A kind of 3D printer consumptive material extrusion mechanism of adjustable moment of torsion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206217178U true CN206217178U (en) | 2017-06-06 |
Family
ID=58782066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621044721.3U Withdrawn - After Issue CN206217178U (en) | 2016-09-08 | 2016-09-08 | A kind of 3D printer consumptive material extrusion mechanism of adjustable moment of torsion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206217178U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346784A (en) * | 2016-09-08 | 2017-01-25 | 华南理工大学 | Torque-adjustable 3D printer supplies extruding mechanism |
| CN113263725A (en) * | 2021-06-09 | 2021-08-17 | 菲托斯三维科技(苏州)有限公司 | Novel 3D is extrusion mechanism for printer |
-
2016
- 2016-09-08 CN CN201621044721.3U patent/CN206217178U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346784A (en) * | 2016-09-08 | 2017-01-25 | 华南理工大学 | Torque-adjustable 3D printer supplies extruding mechanism |
| CN113263725A (en) * | 2021-06-09 | 2021-08-17 | 菲托斯三维科技(苏州)有限公司 | Novel 3D is extrusion mechanism for printer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170606 Effective date of abandoning: 20180622 |
|
| AV01 | Patent right actively abandoned |