CN109866423A - A kind of the multiple print head switching construction and its switching method of 3D printer - Google Patents
A kind of the multiple print head switching construction and its switching method of 3D printer Download PDFInfo
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- CN109866423A CN109866423A CN201711255476.XA CN201711255476A CN109866423A CN 109866423 A CN109866423 A CN 109866423A CN 201711255476 A CN201711255476 A CN 201711255476A CN 109866423 A CN109866423 A CN 109866423A
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- 238000010276 construction Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000007639 printing Methods 0.000 claims description 35
- 230000001360 synchronised effect Effects 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The invention discloses the multiple print head switching construction and its switching method of a kind of 3D printer, solve the problems, such as that there are multiple print heads to interfere when current multiple print head 3D printer prints.Including guide rail, sliding block, print head, transmission mechanism and driving motor, each print head is installed on the independent sliding block, and drives it to move in a straight line by corresponding transmission mechanism by an independent driving motor.Multiple print heads are driven by independent driving motor, it can be achieved that self-movement, when one print head of selection is printed, remaining print head is moved to corresponding free area, interferes with each other when solving the problems, such as that multiple print head 3D printer prints with this.
Description
Technical field
The invention belongs to 3D printer technical fields, and in particular to a kind of multiple print head switching construction of 3D printer and its
Switching method.
Background technique
3D printing technique is a kind of rapid prototyping technology, it based on digital three-dimensional model file, by metal, plastics,
The technology of the moulding materials such as photosensitive resin shaped object by layer-by-layer printing, belongs to increasing material manufacturing.Currently based on melting
The 3D printer of deposition modeling (FDM:Fused Deposition Modeling) principle is since structure is simple, suitable material kind
Class is abundant, a kind of advantages such as equipment and consumables cost are low, it has also become the highest 3D printer of popularity rate.
Printing of the 3D printer with multiple print heads due to that can support multiple material simultaneously, is usually used in printing respectively
Material of main part and backing material, or in the different piece printing different colours of model or the material of unlike material, realize specific
Demand.The two print head arrangement that existing multiple print head 3D printer is all fixed together using two print heads substantially, it is this
Mode realizes that simply two print-head nozzles are in sustained height, and theoretically without being adjusted, two print heads can be realized
Printing alternate, but the problem of due to processing and assembly precision, two print heads are difficult perfectly to be in sustained height, therefore pole
Easily there is the problem of interfering between print head, another print head easily scrapes model when a printhead prints, and influence is beaten
Effect is printed, model can even be blown down when serious and printing is caused to fail.It is this for number of print at 3 or more
The interference problem of mode just becomes more serious, so that almost can not be practical.
Have multiple patents at present and its solution is provided to the problem, such as application No. is the special of CN201620847633.0
Benefit " double print head coordinated type FDM 3 D-printing structures based on the commutation of two-way lead screw " is general to be led using Bidirectional-screw cooperation
Rail realizes the incorgruous movement of double print heads, when needing using which print head, i.e., reduces its height and prints another
Grease head highness increases, to solve the problems, such as that double print heads interfere.For another example application No. is the patents of CN201510793253.3
" a kind of the mariages print head and its method for handover control of 3D printer ", it is general that two print heads are fixed on one rotatably
Bracket on, by way of rotation, realize double end switching.Other patents also all use similar thinking substantially, that is, pass through
The complicated doubles of design print head height low switching structure to solve double end interference problem.But it is feasible on this kind of solution technique, but exist
The problems such as structure is complicated, requirement on machining accuracy is high.In addition, these schemes will when needing 3 or more to switch over
It can become extremely complex, it is difficult to implement.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of multiple print head switching construction of 3D printer and its
Switching method, there are multiple print heads to interfere when with simple and reliable structure solution current multiple print head 3D printer printing
Lead to the problem that print quality is poor, printing success rate is low.
In order to achieve the above object, present invention employs following technical solutions:
It is proposed a kind of multiple print head switching construction of 3D printer, including guide rail, sliding block, print head, transmission mechanism and driving
Motor, each print head are installed on an independent sliding block, and pass through corresponding driver by an independent driving motor
Structure drives it to move in a straight line.
Preferably, the quantity of the print head is 2.
Preferably, the guide rail is one, and two sliding blocks are mounted on the guide rail.
Preferably, the guide rail is two, and two sliding blocks are separately mounted on two guide rails.
Preferably, the quantity of the print head is 3 ~ 6.
Preferably, 2 sliding blocks are at most installed, multiple print heads are separately mounted to more guide rails on the every guide rail
On.
Preferably, the transmission mechanism is synchronous belt or screw rod.
The multiple print head switching method for proposing a kind of 3D printer, the multiple print head applied to above-mentioned 3D printer switch knot
Structure, comprising the following steps: S1: control print platform opposed print heads move down, and printer model until platform and thereon is to switching
There are certain safe distance in the two print-head nozzle lower ends used after preceding and switching；S2: what is used before control switching beats
Print head is moved in corresponding free area, and the free area of the print head refers to other than print area, and will not do
Relate to the region of other printhead prints movement；S3: the print head used after control switching is mobile into print area；S4: control is beaten
The height of the printhead prints used after suitable switching is moved on print platform；S5: continue print job.
Compared with prior art, the present invention by the way that multiple print heads are separately mounted on independent sliding block, and using only
Vertical driving motor and transmission mechanism drives it to move in a straight line, each print head can self-movement, therefore can will work as
Preceding unused print head is moved to corresponding free area.Because synchronization at most only has a print head and is in print zone
In domain, so this guarantees the print jobs that other unused print heads when printing will not interfere with current print head.Each
The movement mechanism of print head is identical as existing mechanism, therefore need to only repeat existing movement mechanism, without increasing complicated cut
Structure is changed, to reduce the overall processing difficulty of print head, also reduces the weight of single print head.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the 1st embodiment of multiple print head switching construction of 3D printer of the present invention.
Fig. 2 is the operation principle schematic diagram of the 1st embodiment of multiple print head switching construction of 3D printer of the present invention.
Fig. 3 is the structural schematic diagram of the 2nd embodiment of multiple print head switching construction of 3D printer of the present invention.
Fig. 4 is the structural schematic diagram of the 3rd embodiment of multiple print head switching construction of 3D printer of the present invention.
Fig. 5 is the operational flowchart of 3D printer multiple print head switching method of the present invention.
In figure: 11. guide rails, 121. the 1st printing head sliders, 122. the 2nd printing head sliders, 131. the 1st print heads, 132. the
2 print heads, 141. the 1st print head synchronous belts, 142. the 2nd print head synchronous belts, 151. the 1st print head drive motors, 152. the 2nd
Print head drive motor, 1. print areas, 2. free areas, 16. print platforms, 211. the 1st print head guide rails, 212. the 2nd dozens
Print head guide rail, 221. the 1st printing head sliders, 222. the 2nd printing head sliders, 231. the 1st print heads, 232. the 2nd print heads, 241.
1st print head screw rod, 242. the 2nd print head screw rods, 251. the 1st print head drive motors, 252. the 2nd print head drive motors,
311. the 1st guide rails, 312. the 2nd guide rails, 321. the 1st printing head sliders, 322. the 2nd printing head sliders, 323. the 3rd print heads are sliding
Block, 324. the 4th printing head sliders, 331. the 1st print heads, 332. the 2nd print heads, 333. the 3rd print heads, 334. the 4th print heads,
341. the 1st print head synchronous belts, 342. the 2nd print head synchronous belts, 343. the 3rd print head synchronous belts, 344. the 4th print heads are synchronous
Band, 351. the 1st print head drive motors, 352. the 2nd print head drive motors, 353. the 3rd print head drive motors, 354. the 4th
Print head drive motor.
Specific embodiment
In the following, in conjunction with attached drawing and specific embodiment, multiple print head switching construction to 3D printer of the present invention and its
Switching method is described further, in order to clearer understanding present invention technical idea claimed.
A kind of multiple print head switching construction embodiment 1 of 3D printer:
As shown in Figure 1, a kind of multiple print head switching construction of 3D printer, including the 1st print head 131 and the 2nd print head 132,
Wherein the 1st print head 131 is mounted on the 1st printing head slider 121；2nd print head 132 is mounted on the 2nd printing head slider 122
On.1st printing head slider 121 and the 2nd prints head slider 122 and is installed on guide rail 11.Transmission mechanism is same in the present embodiment
Band is walked, the 1st print head drive motor 151 drives the 1st print head 131 to do on guide rail 11 directly by the 1st print head synchronous belt 141
Line movement, while the 2nd print head drive motor 152 drives the 2nd print head 132 in guide rail 11 by the 2nd print head synchronous belt 142
On move in a straight line.
The working principle of multiple print head switching construction in the present embodiment is, by two print heads respectively by two independences
Driving motor driven, therefore the self-movement on guide rail 11 may be implemented in two print heads.As shown in Fig. 2, printing
The region that printing shaping is used on platform 16 is print area 1, and range of the both ends beyond print area 1 is free area 2.Printing
Operation can only carry out in print area 1, therefore only need for current unused print head to be moved to the free area 2 at both ends
In, that is, it can avoid it and current print job caused to interfere.Same root is installed in by two sliding blocks in this present embodiment to lead
It on rail, therefore is the free area of the 1st print head 131 close to one end of the 1st print head drive motor 151, close to the 2nd print head
One end of driving motor 152 is the free area of the 2nd print head 132, and the free area of two print heads is located at guide rail 11
Both ends, so i.e. can avoid two print heads on same guide rail move when cause to interfere.
A kind of multiple print head switching construction embodiment 2 of 3D printer:
As shown in figure 3, a kind of multiple print head switching construction of 3D printer, including the 1st print head 231 and the 2nd print head 232,
Wherein the 1st print head 231 is mounted on the 1st printing head slider 221；2nd print head 232 is mounted on the 2nd printing head slider 222
On.1st printing head slider 221 is mounted on the first print head guide rail 211, and the 2nd printing head slider 222 is mounted on the 2nd print head
On guide rail 212.Transmission mechanism is screw rod in the present embodiment, and the 1st print head drive motor 251 is driven by the 1st print head screw rod 241
Dynamic 1st print head 231 moves in a straight line on guide rail 211, while the 2nd print head drive motor 252 passes through the 2nd print head screw rod
242 the 2nd print heads 232 of driving move in a straight line on guide rail 212.
The principle of multiple print head switching construction in the present embodiment is similar with the 1st embodiment, and difference is only that the present embodiment
In, two printing head sliders are separately mounted on two guide rails, for embodiment 1, the movements of two print heads there is no
The problem of interference, therefore the 1st print head and the corresponding free area of the 2nd print head can freely be set according to the actual application,
Flexibility is higher.
A kind of multiple print head switching construction embodiment 3 of 3D printer:
As shown in figure 4, a kind of multiple print head switching construction of 3D printer, including the 1st print head 331, the 2nd print head 332,
3 print heads 333 and the 4th print head 334, wherein the 1st print head 331 is mounted on the 1st printing head slider 321；2nd print head
332 are mounted on the 2nd printing head slider 322；3rd print head 333 is mounted on the 3rd printing head slider 323；4th print head 334
It is mounted on the 4th printing head slider 324.1st printing head slider 321 and the 2nd prints head slider 322 and is mounted on the first guide rail 311
On, the 3rd printing head slider 323 and the 4th prints head slider 324 and is mounted on the 2nd guide rail 312.Transmission mechanism is in the present embodiment
Synchronous belt, the 1st print head drive motor 351 drive the 1st print head 331 on guide rail 311 by the 1st print head synchronous belt 341
It moves in a straight line, the 2nd print head drive motor 352 drives the 2nd print head 332 in guide rail by the 2nd print head synchronous belt 342
It is moved in a straight line on 311, the 3rd print head drive motor 353 drives the 3rd print head 333 to exist by the 3rd print head synchronous belt 343
It is moved in a straight line on guide rail 312, the 4th print head drive motor 354 drives the 4th print head by the 4th print head synchronous belt 344
334 move in a straight line on guide rail 312.
Multiple print head switching construction in the present embodiment can be regarded as the combination of two embodiments 1, compared with Examples 1 and 2
For, such mode can install more print heads, it can be achieved that the switching of up to 4 kinds materials prints.Its working principle and reality
It is identical to apply example 1, therefore repeats no more.
Three above embodiment be for 3D printer of the present invention multiple print head switching construction core technology thought three
A preferred embodiment according to actual needs can also deform accordingly it, as installed three or more on single-rail
More multiple print head is installed, or even different guide rails are also driven with different driving motors on print head, or more guide rails, because
Its central principle is identical, does not just make that explanation is unfolded here.
Three embodiments of the multiple print head switching construction based on above-mentioned 3D printer, the embodiment of the present invention provide correspondence
Multiple print head switching method, as shown in Figure 5, comprising the following steps:
Step S1: control print platform opposed print heads move down, and printer model until platform and thereon is preceding to switching and cuts
There are certain safe distance in the two print-head nozzle lower ends used after changing, to guarantee to remove and move into print zone in print head
When domain, platform will not be scraped and printed before model.
Step S2: the print head used before control switching is moved in corresponding free area.
Step S3: the print head used after control switching is mobile into print area.
Step S4: the height for being suitble to the printhead prints used after switching is moved on control print platform opposed print heads.
Step S5: continue print job.
For those skilled in the art, it can make other each according to the above description of the technical scheme and ideas
Kind is corresponding to be changed and deforms, and all these change and deform the protection model that all should belong to the claims in the present invention
Within enclosing.
Claims (8)
1. a kind of multiple print head switching construction of 3D printer, including guide rail, sliding block, print head, transmission mechanism and driving electricity
Machine, which is characterized in that each print head is installed on the independent sliding block, and by an independent driving electricity
Machine drives it to move in a straight line by corresponding transmission mechanism.
2. a kind of multiple print head switching construction of 3D printer as described in claim 1, which is characterized in that the print head
Quantity is 2.
3. a kind of multiple print head switching construction of 3D printer as claimed in claim 2, which is characterized in that the guide rail is one
Root, two sliding blocks are mounted on the guide rail.
4. a kind of multiple print head switching construction of 3D printer as claimed in claim 2, which is characterized in that the guide rail is two
Root, two sliding blocks are separately mounted on two guide rails.
5. a kind of multiple print head switching construction of 3D printer as described in claim 1, which is characterized in that the print head
Quantity is 3 ~ 6.
6. a kind of multiple print head switching construction of 3D printer as claimed in claim 5, which is characterized in that the every guide rail
2 sliding blocks of upper at most installation.
7. a kind of multiple print head switching construction of 3D printer as described in claim 1, which is characterized in that the transmission mechanism
For synchronous belt or screw rod.
8. a kind of multiple print head switching method of 3D printer, more printings applied to 3D printer as described in claim 1
Head switching construction, which comprises the following steps:
S1: control print platform opposed print heads move down, and printer model until platform and thereon is to before switching and after switching
There are certain safe distance in the two print-head nozzle lower ends used；
S2: the print head used before control switching is moved in corresponding free area；
S3: the print head used after control switching is mobile into print area；
S4: the height of the printhead prints used after suitable switching is moved on control print platform opposed print heads；
S5: continue print job.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711255476.XA CN109866423A (en) | 2017-12-03 | 2017-12-03 | A kind of the multiple print head switching construction and its switching method of 3D printer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711255476.XA CN109866423A (en) | 2017-12-03 | 2017-12-03 | A kind of the multiple print head switching construction and its switching method of 3D printer |
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Cited By (6)
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| CN110587974A (en) * | 2019-09-28 | 2019-12-20 | 严铜 | Printing head assembly for fuse modeling 3D printer |
| CN110744817A (en) * | 2019-10-31 | 2020-02-04 | 中南大学 | 3D printer material flow prevention device and printing method |
| CN111823584A (en) * | 2020-07-23 | 2020-10-27 | 南京工程学院 | A hybrid 3D printer and printing method thereof |
| CN112026164A (en) * | 2020-08-17 | 2020-12-04 | 西安交通大学 | Double-nozzle hybrid continuous fiber reinforced composite material 3D printing device and method |
| CN112477119A (en) * | 2020-10-21 | 2021-03-12 | 常熟理工学院 | Molding 3D printer |
| WO2022110478A1 (en) * | 2020-11-30 | 2022-06-02 | 深圳市创想三维科技有限公司 | 3d printer |
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