CN106042380B - A kind of method of 3D printer printhead switching feeding - Google Patents
A kind of method of 3D printer printhead switching feeding Download PDFInfo
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- CN106042380B CN106042380B CN201610408868.4A CN201610408868A CN106042380B CN 106042380 B CN106042380 B CN 106042380B CN 201610408868 A CN201610408868 A CN 201610408868A CN 106042380 B CN106042380 B CN 106042380B
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- hold
- feed spool
- printhead
- pedestal
- ring slot
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Abstract
The present invention relates to a kind of method of 3D printer printhead switching feeding, the printhead uses feed switched device, and the feed switched device includes feed spool, camshaft and multiple hold-down mechanisms；And carry out according to the following steps：（1）More wire rods are guided in multiple ring slots of feed spool respectively；（2）Multiple rotation cam axle predetermined angular, makes multiple cam switch operatings；The cam of work ejects forward corresponding hold-down mechanism, makes hold-down mechanism that corresponding wire rod is pressed in the corresponding ring slot of feed spool；（3）Feed spool is rotated, the wire rod pressed is squeezed out by the tooth in ring slot.The present invention drives different hold-down mechanisms to swing forward using camshaft switching, the corresponding ring slot being pressed on corresponding wire rod by hold-down mechanism on feed spool, corresponding wire rod is squeezed out by rotating feed spool, realize different wire rods is switched fast charging, has the advantages that novel in design, simple in construction and reliable operation.
Description
Technical field
The present invention relates to a kind of method of 3D printer printhead switching feeding.
Background technology
3D printer is also known as three-dimensional printer, is a kind of a kind of machine of accumulation manufacturing technology, i.e. RP technique, it
Based on mathematical model file, with special wax material, powdery metal or plastics etc. can jointing material, by print from level to level
Jointing material come manufacture three-dimensional object.Existing fusion sediment type 3D printer is typically provided only with a shower nozzle, can only
Printed using a kind of wire rod, it is impossible to switch the wire rod of different colours or unlike material.
The content of the invention
In view of the deficiencies in the prior art, the technical problems to be solved by the invention are to provide a kind of 3D printer printhead and cut
The method for changing feeding.
In order to solve the above problems, the technical scheme is that：A kind of method of 3D printer printhead switching feeding,
The printhead uses feed switched device, and the feed switched device includes feed spool, camshaft and multiple hold-down mechanisms, institute
The pedestal front portion that feed spool is transversely mounted on printhead is stated, the feed spool the week side of boss is provided with multiple rings being distributed side by side vertically
Shape teeth groove, the ring slot are used to wear wire rod；Multiple hold-down mechanisms are mounted side by side in the middle part of the pedestal of printhead, multiple pressures
Tight mechanism is corresponding with multiple ring slots on feed spool respectively, and the hold-down mechanism is used to wire rod being pressed in ring slot
It is interior；The camshaft is transversely mounted on the pedestal rear portion of printhead, and the camshaft the week side of boss is provided with multiple stagger vertically point
The cam of cloth, multiple cams are corresponding with multiple hold-down mechanisms respectively, and the cam is used to drive hold-down mechanism forward against near-ring
Shape teeth groove；And carry out according to the following steps：（1）More wire rods are guided in multiple ring slots of feed spool respectively；（2）Repeatedly turn
Moving cam axle predetermined angular, make multiple cam switch operatings；The cam of work ejects forward corresponding hold-down mechanism, makes compression
Corresponding wire rod is pressed in the corresponding ring slot of feed spool by mechanism；（3）Feed spool is rotated, the wire rod pressed is by annular
Tooth in teeth groove squeezes out.
Further, the pedestal lower front of the printhead is provided with the heating head with multiple shower nozzles, multiple shower nozzles
Charging hole it is corresponding with multiple ring slots respectively.
Further, the heating head includes heating plate, and the heating plate is bolted on pedestal, multiple shower nozzles
Heating plate bottom is mounted side by side on, the more heater strips for being located at charging hole side respectively are evenly distributed with the heating plate.
Further, the front upper of the pedestal is provided with multiple guiding for entering ring slot for guide line material
Pipe, multiple guide pipes are corresponding with ring slot respectively.
Further, the hold-down mechanism includes swing span and pinch roller, and the pinch roller is arranged in swing span by bearing pin
Portion, the swing span lower hinge are provided with what is be engaged with cam on the pedestal of printhead on rear side of the swing span top
Inclined-plane.
Further, the feed spool passes through first gear group deceleration, first stepping by the first stepper motor
Motor is arranged on pedestal, and the first gear group includes the first driving gear and the first driven gear, first driving tooth
On the output shaft of wheel the first stepper motor of installation, first driven gear is arranged on one end of feed spool, the feed spool
The other end is pinned by nut.
Further, the camshaft passes through second gear group deceleration, second stepping by the second stepper motor
Motor is arranged on button, and the button be located on camshaft and is fixed on by baffle plate on pedestal, the second gear group bag
The second driving gear and the second driven gear are included, second driving gear is arranged on the output shaft of the second stepper motor, institute
State one end that the second driven gear is arranged on camshaft.
Compared with prior art, the invention has the advantages that：The method that the 3D printer printhead switches feeding
Drive different hold-down mechanisms to swing forward using camshaft switching, corresponding wire rod is pressed on by feed spool by hold-down mechanism
On corresponding ring slot, squeeze out corresponding wire rod by rotating feed spool, realize different wire rods is switched fast charging,
And then make multiple shower nozzles is switched fast discharging, has the advantages that novel in design, simple in construction and reliable operation.
Brief description of the drawings
Fig. 1 is the stereogram one of 3D printer printhead.
Fig. 2 is the stereogram two of 3D printer printhead.
Fig. 3 is the explosive view of 3D printer printhead.
Fig. 4 is the cooperation schematic diagram of feed switched device.
Fig. 5 is the sectional view of 3D printer printhead.
Marked in figure：101- pedestals, 110- feed spools, 111- ring slots, 120- camshafts, 121- cams, 130- pressures
Tight mechanism, 131- swing spans, 132- pinch rollers, 133- bearing pins, 134- inclined-planes, the stepper motors of 140- first, the driving tooths of 141- first
Wheel, the driven gears of 142- first, the stepper motors of 150- second, the driving gears of 151- second, the driven gears of 152- second, 160- add
Hot head, 161- shower nozzles, 162- heating plates, 163- heater strips, 170- guide pipes, 180- nuts, 190- buttons, 191- baffle plates.
Embodiment
In order to allow features described above of the invention and advantage to become apparent, special embodiment below, and coordinate accompanying drawing, make detailed
Carefully it is described as follows.
As shown in Fig. 1 ~ 5, a kind of method of 3D printer printhead switching feeding, the printhead is filled using feed switched
Put, the feed switched device includes feed spool 110, camshaft 120 and multiple hold-down mechanisms 130, the both ends of feed spool 110
It is anterior that the pedestal 101 of printhead is transversely mounted on by bearing, the week side of boss of feed spool 110 is provided with multiple divides side by side vertically
The ring slot 111 of cloth, the ring slot 111 are used to wear wire rod；Multiple hold-down mechanisms 130 are mounted side by side on printhead
The middle part of pedestal 101, multiple hold-down mechanisms 130 are corresponding with multiple ring slots 111 on feed spool 110 respectively, the compression
Mechanism 130 is used to wire rod being pressed in ring slot 111；The both ends of camshaft 120 are transversely mounted on printing by bearing
The rear portion of pedestal 101 of head, the week side of boss of camshaft 120 are provided with multiple cams 121 being in staggered distribution vertically, multiple cams
121 is corresponding with multiple hold-down mechanisms 130 respectively, and the cam 121 is used to drive hold-down mechanism 130 forward against nearly ring slot
111；And carry out according to the following steps：（1）More wire rods are guided in multiple ring slots 111 of feed spool 110 respectively；（2）It is more
The secondary predetermined angular of rotation cam axle 120, make multiple switch operatings of cam 121；The cam 121 of work is by corresponding hold-down mechanism
130 eject forward, make hold-down mechanism 130 that corresponding wire rod is pressed in the corresponding ring slot 111 of feed spool 110；（3）Turn
Dynamic feed spool 110, the wire rod pressed are squeezed out by the tooth in ring slot 111.
In step（2）In, such as the number of cam 121 is N（N≥2）, the angle between two cams 121 of arbitrary neighborhood
It is 360/N degree, then often rotating 360/N degree just has a cam 121 to work.Certainly, between two cams 121 of arbitrary neighborhood
Angle can also be unequal, i.e., the rotational angle of each camshaft 120 is different.
In the present embodiment, the lower front of the pedestal 101 is provided with the heating head 160 with multiple shower nozzles 161, more
The charging hole of individual shower nozzle 161 is corresponding with multiple ring slots 111 respectively.Wherein, the heating head 160 includes heating plate 162,
The heating plate 162 is bolted on pedestal 101, and multiple shower nozzles 161 are mounted side by side on the bottom of heating plate 162, described
The more heater strips 163 for being located at charging hole side respectively are evenly distributed with heating plate 162.In use, step（3）Squeeze out
After wire rod is melt into liquid in heating plate 162, sprayed by shower nozzle 161.
In the present embodiment, in order to reduce resistance of the pedestal 101 to wire rod, the front upper of the pedestal 101 is provided with
Multiple guide pipes 170 for entering ring slot 111 for guide line material, multiple guide pipes 170 are relative with ring slot 111 respectively
Should.In use, more wire rods are introduced in corresponding ring slot 111 from guide pipe 170 respectively.
In the present embodiment, the hold-down mechanism 130 includes swing span 131 and pinch roller 132, and the pinch roller 132 passes through pin
Axle 133 is arranged on the middle part of swing span 131, and the lower hinge of swing span 131 is on the pedestal 101 of printhead, the swing span
The inclined-plane 134 being engaged with cam 121 is provided with rear side of 131 tops.Wherein, the pinch roller 132 can use but be not limited to roll
Pearl bearing.When hold-down mechanism 130 works, wire rod is pressed in ring slot 111 by pinch roller 132, enables ring slot 111
Enough squeeze out wire rod.
In the present embodiment, the feed spool 110 passes through first gear group deceleration, institute by the first stepper motor 140
The first stepper motor 140 is stated on pedestal 101, it is driven that the first gear group includes the first driving gear 141 and first
Gear 142, first driving gear 141 are installed on the output shaft of the first stepper motor 140, first driven gear 142
Installed in one end of feed spool 110, the other end of the feed spool 110 is pinned by nut 180.In use, the first stepper motor
140 driving feed spools 110 rotate, to extrude any wire rod.
In the present embodiment, the camshaft 120 passes through second gear group deceleration, institute by the second stepper motor 150
The second stepper motor 150 is stated on button 190, the button 190 be located on camshaft 120 and be fixed by baffle plate 191
In on pedestal 101, the second gear group includes the second driving gear 151 and the second driven gear 152, second driving tooth
Wheel 151 is arranged on the output shaft of the second stepper motor 150, and second driven gear 152 is arranged on the one of camshaft 120
End.In use, the drive cam shaft 120 of the second stepper motor 150 rotates predetermined angular, to switch to corresponding cam 121, make phase
The hold-down mechanism 130 answered works, and then switches to corresponding wire rod.
It is described above, only presently preferred embodiments of the present invention, any formal limitation not is done to the present invention, it is any ripe
Professional and technical personnel is known in every case without departing from the content of technical solution of the present invention, and the technical spirit according to the present invention is real to more than
Apply example and make any simple modification, equivalent changes and modifications, should all belong to the covering scope of the present invention.
Claims (6)
- A kind of 1. method of 3D printer printhead switching feeding, it is characterised in that the printhead uses feed switched device, The feed switched device includes feed spool, camshaft and multiple hold-down mechanisms, and the feed spool is transversely mounted on printhead Pedestal is anterior, and the feed spool the week side of boss is provided with multiple ring slots being distributed side by side vertically, and the ring slot is used to wear If wire rod；Multiple hold-down mechanisms are mounted side by side in the middle part of the pedestal of printhead, multiple hold-down mechanisms respectively with it is more on feed spool Individual ring slot is corresponding, and the hold-down mechanism is used to wire rod being pressed in ring slot；The camshaft is transversely mounted on The pedestal rear portion of printhead, the camshaft the week side of boss are provided with multiple cams being in staggered distribution vertically, multiple cams respectively with Multiple hold-down mechanisms are corresponding, and the cam is used to drive hold-down mechanism forward against nearly ring slot；And carry out according to the following steps： （1）More wire rods are guided in multiple ring slots of feed spool respectively；（2）Multiple rotation cam axle predetermined angular, makes multiple Cam switch operating；The cam of work ejects forward corresponding hold-down mechanism, hold-down mechanism is pressed on corresponding wire rod In the corresponding ring slot of feed spool；（3）Feed spool is rotated, the wire rod pressed is squeezed out by the tooth in ring slot；It is described The front upper of pedestal be provided with it is multiple for guide line material enter ring slot guide pipes, multiple guide pipes respectively with annular Teeth groove is corresponding.
- 2. the method for 3D printer printhead switching feeding according to claim 1, it is characterised in that：The printhead Pedestal lower front is provided with the heating head with multiple shower nozzles, and the charging hole of multiple shower nozzles is relative with multiple ring slots respectively Should.
- 3. the method for 3D printer printhead switching feeding according to claim 2, it is characterised in that：The heating head bag Heating plate is included, the heating plate is bolted on pedestal, and multiple shower nozzles are mounted side by side on heating plate bottom, the heating The more heater strips for being located at charging hole side respectively are evenly distributed with plate.
- 4. the method for 3D printer printhead switching feeding according to claim 1, it is characterised in that：The hold-down mechanism Including swing span and pinch roller, the pinch roller is arranged in the middle part of swing span by bearing pin, and the swing span lower hinge is in printhead Pedestal on, be provided with the inclined-plane being engaged with cam on rear side of the swing span top.
- 5. the method for 3D printer printhead switching feeding according to claim 1, it is characterised in that：The feed spool by First stepper motor is arranged on pedestal by first gear group deceleration, first stepper motor, the first gear Group includes the first driving gear and the first driven gear, and first driving gear is installed on the output shaft of the first stepper motor, First driven gear is arranged on one end of feed spool, and the other end of the feed spool is pinned by nut.
- 6. the method for 3D printer printhead switching feeding according to claim 1, it is characterised in that：The camshaft by Second stepper motor is arranged on button by second gear group deceleration, second stepper motor, and the button button is set It is fixed on camshaft and by baffle plate on pedestal, the second gear group includes the second driving gear and the second driven gear, Second driving gear is arranged on the output shaft of the second stepper motor, and second driven gear is arranged on the one of camshaft End.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610408868.4A CN106042380B (en) | 2016-06-13 | 2016-06-13 | A kind of method of 3D printer printhead switching feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610408868.4A CN106042380B (en) | 2016-06-13 | 2016-06-13 | A kind of method of 3D printer printhead switching feeding |
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| Publication Number | Publication Date |
|---|---|
| CN106042380A CN106042380A (en) | 2016-10-26 |
| CN106042380B true CN106042380B (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610408868.4A Active CN106042380B (en) | 2016-06-13 | 2016-06-13 | A kind of method of 3D printer printhead switching feeding |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11167951B2 (en) * | 2016-06-30 | 2021-11-09 | Robert Bosch Tool Corporation | Automatic mechanical spool changer for 3-D printers |
| CN108582789A (en) * | 2018-07-27 | 2018-09-28 | 中科院广州电子技术有限公司 | A kind of 3D printer feed device that can actively adapt to material |
| CN109435241A (en) * | 2018-11-12 | 2019-03-08 | 河北工程大学 | A kind of 3D printing device |
| DE102020133402A1 (en) * | 2020-12-14 | 2022-06-15 | 3DBIZZ UG (haftungsbeschränkt) | Mechanism for automated mechanical switching by counter-conveyor movement, device and control mechanism |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203293543U (en) * | 2013-06-08 | 2013-11-20 | 西安非凡士机器人科技有限公司 | Automatic material changing device of 3D (three-dimensional) printing machine |
| TWI596000B (en) * | 2013-12-13 | 2017-08-21 | 三緯國際立體列印科技股份有限公司 | Three-dimensional printing apparatus and printing head module |
| CN105058789B (en) * | 2015-07-28 | 2017-09-26 | 华中科技大学 | A kind of 3D printing equipment suitable for many material workpiece |
| CN105500709B (en) * | 2015-12-31 | 2017-07-28 | 同济大学 | Printed material switching device and its application method for 3D printer |
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- 2016-06-13 CN CN201610408868.4A patent/CN106042380B/en active Active
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