CN108422666A - 3D printer with nozzle clearing function - Google Patents
3D printer with nozzle clearing function Download PDFInfo
- Publication number
- CN108422666A CN108422666A CN201810341534.9A CN201810341534A CN108422666A CN 108422666 A CN108422666 A CN 108422666A CN 201810341534 A CN201810341534 A CN 201810341534A CN 108422666 A CN108422666 A CN 108422666A
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- China
- Prior art keywords
- waste material
- shell
- drawer
- scraper
- material box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002699 waste material Substances 0.000 claims abstract description 110
- 238000004140 cleaning Methods 0.000 claims abstract description 40
- 238000007639 printing Methods 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000010146 3D printing Methods 0.000 claims abstract description 21
- 230000008676 import Effects 0.000 claims abstract description 7
- 230000004886 head movement Effects 0.000 claims abstract description 3
- 238000000465 moulding Methods 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- 238000009434 installation Methods 0.000 claims description 17
- 229920000742 Cotton Polymers 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000007790 scraping Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims 1
- 230000006870 function Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009711 regulatory function Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 241000397426 Centroberyx lineatus Species 0.000 description 1
- 241000270295 Serpentes Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000110 selective laser sintering Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/35—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The present invention relates to a kind of 3D printers with nozzle clearing function, including shell, it is provided with operational observations mouth in front of shell, 3D printing head is set in shell, drive the mobile device of 3D printing head movement, for the molding print platform of printed material and the cleaning plant of clear away waste silk, cleaning plant includes waste material box, scraper and scraper altimetric compensation structure, waste material import is offered above waste material box, it further include waste material box height adjustment mechanism, mobile device drives 3D printing head, after making printing nozzle contact scraper and realizing primary cleaning, 3D printing head reverse movement is driven to realize secondary cleaning.Using the above scheme, the present invention provides a kind of 3D printer with nozzle clearing function, simple in structure, easy to operate, stability is high, overcomes the shortcomings of traditional cleaning plant.
Description
Technical field
The present invention relates to a kind of 3D printers, and in particular to a kind of 3D printer with nozzle clearing function.
Background technology
3D printer, i.e. a kind of machine of rapid prototyping technology, it be one kind based on digital model file, with powder
The adhesive materials such as last shape metal or plastics construct the technology of object by layer-by-layer printing.Past, it was often in mold
The fields such as manufacture, industrial design are used for modeling, are now increasingly used for the direct manufacture of some products.
The 3D printing technique of existing mainstream includes mainly four kinds：Stereolithography（SLA）, three-dimensional powder bonding（3DP）, choosing
Selecting property is laser sintered（SLS）, fusion sediment rapid shaping（FDM）.Wherein, Stereolithography technology, three-dimensional powder bonding are based on
Although the 3D printer precision of technology and Selective Laser Sintering is higher, suitable material also than wide, generally require compared with
Big power, Technical comparing is complicated, and equipment cost, maintenance cost and material cost are all very high, so application range is main at present
Concentrate on high-end manufacturing field.
Fusion sediment（Fused Deposition Modeling, FDM）It is called fuse deposition, it is main using Filamentous hot melt
Property material as raw material, by heating and melting, the nozzle that the raw material after liquefaction are passed through to a fine printing nozzle is squeezed and is sprayed
Come.Raw material are deposited on after being ejected to be made on panel or the cured material of preceding layer, temperature be less than after fusing point start it is solid
Change, is successively accumulated by material and form final finished product.
During FDM printers work, nozzle is in the condition of high temperature, and by gravity, the material of thawing can be certainly
Right slave printing nozzle leaks out, and forms waste material silk.It is generally in high temperature print state, the material of the leakage can pass through pumpback silk material
Avoid the generation of waste material silk phenomenon.But before printing（Nozzle temperature-rise period）After printing（Nozzle desuperheating process）Being cannot
Using pumpback, can not be cleared up if waste material silk is formed, and the harm of scrap is primarily present in following aspect：
1, waste material silk during band draws can arrival print platform more advance than practical printed material, and be piled up in practical printed material
Lower section, cause the convex closure heaved, model accuracy caused to decline, in addition printing failure；
2, waste material silk falls off naturally from printing nozzle, is mixed into the mechanical part inside 3D printer, causes hardware damage；
3, waste material silk adheres to around printing nozzle, after long term high temperature oxidation, becomes black liquor and drops onto model surface, not only
Model appearance is influenced, is also possible to lead to plug for a long time.
Currently, to eliminate above-mentioned drawback, most of operators mechanically remove waste material silk：
1, equipment directly uses hand or tweezers to remove waste material silk in the operating condition；
2, under the idle state of machine, nozzle is preheated, using tweezers fixture non-dust cloth or paper handkerchief by waste material silk and nozzle
It cleans on periphery.
Above-mentioned artificial treatment method is under equipment hot operation state, there is security risk.To solve above-mentioned ask
Topic, application No. is 201510950657.9 Chinese invention patents to disclose a kind of 3D printer based on FDM technology, is setting
The standby internal cleaning device increased for clear away waste silk, the cleaning device have the cleaning cotton that height is adjusted by compressed spring,
Waste material silk can be wiped away when printing nozzle is contacted with the cleaning cotton；Application No. is 201520468321.4 Chinese utility models
Patent discloses a kind of 3D printer nozzle automatic cleaning apparatus, equipment be internally provided with elastic component adjust height scraper and
The waste material box for collecting waste material, can scrape off waste material silk when printing nozzle is with the blade contact, and fall into waste material box.However,
Above two manner of cleaning up, in applied to real work, there are still certain shortcomings：
1, cleaning device does not have height adjusting function, after Wiping material is consumed, can not by height adjust to Z axis into
Row calibration and compensation, cause cleaning device to need to frequently replace Wiping material；
2, do not have perfect waste material silk processing function, though latter cleaning plant has waste material box, needing will be in waste material box
When waste material silk is toppled over, need staff by hand stretch into inside equipment by waste material box remove and from printing nozzle and print platform it
Between take out, on the one hand, mode of operation is extremely not convenient, on the other hand, since equipment inner space is limited, in fetching process easily
It collides with other elements inside equipment, influences printing precision and service life；
3, do not have perfect printing nozzle suitable structures, in scale removal process, cleaning cotton and blade and printing nozzle end
Position corresponds to must extremely precisely, and otherwise cleaning effect is had a greatly reduced quality, moreover, latter cleaning plant is located at waste material box due to scraper
Side wall, it is necessary to single direction and scraper into contact, otherwise waste material silk can drop down onto above print platform, cleaning plant then becomes picture snake
Add foot.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of 3D with nozzle clearing function to beat
Print machine, it is simple in structure, easy to operate, stability is high, overcomes the shortcomings of traditional cleaning plant, it is clear to realize printing nozzle
Reason automation, have the characteristics that clean out, speed it is fast.
To achieve the above object, the present invention provides following technical solutions：Including shell, it is provided in front of the shell
Operational observations mouth, setting 3D printing head in the shell, driving 3D printing head movement mobile device, for printed material at
The print platform of type and the cleaning plant of clear away waste silk, the 3D printing head include bottom printing nozzle and around printing
The heating mechanism of nozzle, the cleaning plant include waste material box, scraper and scraper altimetric compensation structure, in the waste material box
Side offers waste material import, further includes waste material box height adjustment mechanism, the waste material box height adjustment mechanism includes adjustable column
And regulating tank, the adjustable column is fixedly installed on waste material box both sides respectively, and shell, the adjusting is connected from shell rear
Slot is located at adjustable column across the position of shell and is vertically arranged, and the adjustable column is provided with the installation to offset with inner walls
Step and the lock nut to offset with housing exterior walls, the lock nut are in screw-thread fit with adjustable column, and the scraper height is mended
It includes compensation seat and counterbalance spring to repay mechanism, and the compensation seat is located at the horizontal middle of the waste material import of waste material box, described
Compensation seat is fixedly installed the fixed arm for extending to waste material box inner wall, the benefit with respect to the both ends of waste material box width direction respectively
Spring is repaid to be located above compensation seat and be vertically compressed between scraper and compensation seat, the blade of the scraper higher than waste material into
Mouthful, mobile device driving 3D printing head after making printing nozzle contact scraper and realizing primary cleaning, drives 3D printing head
Reverse movement realizes secondary cleaning.
By using above-mentioned technical proposal, waste material box height adjustment mechanism is added, for adjusting waste material box height, that is, is adjusted
The height of scraper, timely opposite Z axis are calibrated and are compensated, in addition, as main calibrator unit, the locking of adjuster position
Nut is located at hull outside, its position can be calibrated by not opening shell, the convenience of calibration be improved, in addition, by scraper
Position is adjusted in the middle part of waste material box, and no matter scraper contacts the waste material silk that can make to be stripped off with 3D printing head with which direction falls into
In waste material box, avoids waste material silk that from dropping down onto above print platform, need sidesway return not in addition, both having eliminated single and having struck off
Just, and single movement is made to can be realized back and forth twice, keeps cleaning efficiency higher, cleaning effect more complete.
The present invention is further arranged to：The waste material box height adjustment mechanism further include fine tuning screw rod, fine-tuning nut and
Fine tuning seat, the fine tuning seat are fixed on inner walls and below waste material box, and the fine tuning seat extends vertically through setting
Have a non-circular fine tuning hole in section, the shell offers the handle hole passed through for fine-tuning nut, the fine-tuning nut with
Finely tune hole coaxial arrangement, and part extends to hull outside as operation portion from handle hole, the fine tuning screw rod be provided with and
The adjustment portion of fine-tuning nut screw-thread fit and slipping part compatible with fine tuning hole shape, the upper end conduct of the fine tuning screw rod
It is butted on the adjustable side of waste material box bottom, the end face of the fine-tuning nut is circumferentially arranged to have limiting slot, the handle hole to set
The limited block being equipped in limiting slot.
By using above-mentioned technical proposal, coarse adjustment of the adjustable column as waste material box height, and do not locked completely in adjustable column
When tight, rotary fine adjustment nut can be such that the fine tuning screw rod being butted below waste material box lifts, real by the extruding force of fine tuning screw tip
The trace regulation of existing waste material box makes height adjust more accurate, in addition, making adjusting nut not take off by limiting slot and limited block
From handle hole, ensure that stablizing for regulatory function uses, and operating position, in shell rear, operation is more convenient.
The present invention is further arranged to：The shape of the printing nozzle is positive truncated rectangular pyramids, and small end is downward, institute
Each side in printing nozzle periphery stated is the guide surface for guiding scraper to spout.
By using above-mentioned technical proposal, change the peripheral shape of printing nozzle, on the one hand, scraper can be guided accurately
To nozzle exit area, waste material silk is struck off, on the other hand, scraper can be completely bonded with the side of printing nozzle, be made long-term
The waste material silk for becoming black after high-temperature oxydation can be struck off completely, rather than the side of arc-shaped only has limited contact before
Area improves cleaning efficiency and comprehensively degree.
The present invention is further arranged to：The shell, which is located at below waste material box, is provided with stripping drawer, the stripping
It is provided with receiving port above drawer, the shell rear is provided with the drawer mouth for the insertion of stripping drawer, the stripping
Drawer is provided with the drawer handle outside shell, and the waste material box bottom is provided with the discharging opposite with stripping drawer positions
Hopper, the width of the stripping drawer are greater than or equal to the width of print platform, and the stripping drawer is located at the end of shell
Portion extends to below print platform.
By using above-mentioned technical proposal, stripping drawer can be fallen by gravity by collecting to the waste material silk of waste material box
It is interior, it is uniformly processed after stripping drawer centralized collection, it is inconvenient caused by waste material box to avoid removing from shell, and may go out
Miscellaneous bits also can be directly swept into stripping drawer, improve cleaning by existing equipment damage in addition, after the cleaning of daily print platform
Convenience.
The present invention is further arranged to：The stripping drawer bottom is provided with steel ball chamber, steel ball intracavitary sliding setting
The steel ball spring for having the steel ball for being limited in steel ball chamber and resetting steel ball downwards, the shell are provided with for being caught in steel ball
Steel bead groove, when the stripping drawer is fully inserted into shell, the steel ball mutually blocks with steel bead groove matches, and constitutes stripping drawer
Limit.
By using above-mentioned technical proposal, steel ball mutually blocks with steel bead groove with the latching force for giving small amount, enables stripping drawer
Enough stabilizations are installed in shell, while can give staff's sound feedback being installed in place, and realize man-machine information exchange.
The present invention is further arranged to：Shell horizontal subdivision between stripping drawer and print platform is provided with
Bottom plate, bottom plate position corresponding with discharging hopper and print platform edge are provided with the waste discharge being connected with stripping drawer
Mouthful.
By using above-mentioned technical proposal, adds every in the bottom plate of stripping drawer and print platform, print chamber is made to have tended to
Whole cavity reduces external fluid to internal influence, reduces the corner in print chamber, part is avoided to tear open while being convenient to clean
Lose when dress.
The present invention is further arranged to：The material of the scraper is high-temperature flame-proof cotton.
By using above-mentioned technical proposal, material of the high-temperature flame-proof cotton as scraper is selected, with waterproof, wear-resisting, anti-
The features such as fire, oil resistant, it is well suited for the worst hot case of 3D printer.
The present invention is further arranged to：Further include scraper installing mechanism, the scraper installing mechanism includes being pasted with scraper
Merge that screw is fixed to scrape knife plate, knife plate is horizontally disposed has dovetail to install guide rail, dovetail installation for described scraping
Guide rail both sides are respectively arranged with the mounting leg that guide rail is installed in sliding in dovetail, compress and set between the mounting leg of both sides
It is equipped with installation spring, the mounting groove of installation counterbalance spring is provided in the middle part of the compensation seat, the mounting groove both sides are along perpendicular
To compensating tank is correspondingly arranged on each mounting leg respectively, each mounting leg is provided with far from the end for scraping knife plate along benefit
Repay the installation bending of slot lifting.
By using above-mentioned technical proposal, after 3D printer is processed for a long time, it is difficult to it avoids the need for replacing scraper, it can
Quickly it can dismantle or install out of compensating tank after the mounting leg pressing of compression, while not influence the compensation work(of counterbalance spring
Can, improve the convenience used.
The invention will be further described with reference to the accompanying drawings and detailed description.
Description of the drawings
Fig. 1 is the stereogram one of the specific embodiment of the invention；
Fig. 2 is the stereogram two of the specific embodiment of the invention；
Fig. 3 is the enlarged drawing of A in Fig. 1；
Fig. 4 be the specific embodiment of the invention in waste material box, print platform and stripping drawer arrangement；
Fig. 5 is the stereogram that waste material box removes waste material box height adjustment mechanism in the specific embodiment of the invention；
Fig. 6 is the structural schematic diagram of specific embodiment of the invention middle casing and stripping drawer；
Fig. 7 is the structural schematic diagram of fine tuning screw rod, fine-tuning nut and fine tuning seat in the specific embodiment of the invention；
Fig. 8 is the structural schematic diagram of scraper installing mechanism in the specific embodiment of the invention.
Specific implementation mode
As Figure 1-Figure 8, the invention discloses a kind of 3D printer with nozzle clearing function, including shell 1,
Print chamber 12 is provided in shell 1, front is provided with operational observations mouth 11,3D printing head 2 is arranged in print chamber 12, driving 3D is beaten
Print the mobile device 3 of the movement of head 2, for the cleaning plant 5 of the molding print platform 4 of printed material and clear away waste silk, wherein
Mobile device 3 is existing apparatus, and driving print head 2 can carry out three-dimensional along X-axis, Y-axis and Z axis and move, and 3D printing head 2 includes
The printing nozzle 21 of bottom and heating mechanism around printing nozzle 21, heating mechanism are existing mechanism, and effect is by silk material
It is easy to spray after fusing, convenient for quick, precise forming, indicates not in the drawings, but do not influence Structure Understanding, ensures print head 2
It can be moved to any position of print chamber 12, cleaning plant 5 includes waste material box 51, scraper 52 and scraper altimetric compensation structure,
51 top of waste material box offers waste material import 511, further includes waste material box height adjustment mechanism, waste material box height adjustment mechanism includes
Adjustable column 512 and regulating tank 13, adjustable column 512 is fixedly installed on 51 both sides of waste material box respectively, and passes through shell from 1 rear of shell
1, regulating tank 13 is located at adjustable column 512 across the position of shell 1 and is vertically arranged, and adjustable column 512 is provided with and 1 inner wall of shell
The installation step 513 to offset and the lock nut 514 to offset with 1 outer wall of shell, the lock nut 514 are in spiral shell with adjustable column 512
Line coordinates, and scraper height compensation includes compensation seat 53 and counterbalance spring 531, compensation seat 53 be located at the waste material of waste material box 51 into
The horizontal middle of mouth 511, compensation seat 53 are fixedly installed with respect to the both ends of 51 width direction of waste material box and extend to waste material box respectively
The fixed arm 532 of 51 inner walls, counterbalance spring 531 be located at compensation seat 53 top and be vertically compressed in scraper 52 with compensate seat 53 it
Between, the blade of scraper 52 is higher than waste material import 511, and mobile device 3 drives 3D printing head 2, printing nozzle 21 is made to contact scraper 52
And after realizing primary cleaning, driving 3D printing head 2, which moves backward, realizes secondary cleaning, and printing nozzle 21 contacts the angle of scraper 52
Degree adds waste material box height adjustment mechanism to be best with scraper vertical direction, for adjusting 51 height of waste material box, that is, adjusts and scrapes
The height of knife 52, timely opposite Z axis are calibrated and are compensated, in addition, as main calibrator unit, the locking of adjuster position
Nut 514 is located at 1 outside of shell, its position can be calibrated by not opening shell 1, improve the convenience of calibration, in addition, will
52 position of scraper adjusts in the middle part of waste material box, and no matter scraper 52, which is contacted with which direction with 3D printing head 2, can make to be stripped off
Waste material silk is fallen into waste material box, avoids waste material silk that from dropping down onto 4 top of print platform, in addition, single movement can be realized round-trip two
It is secondary, keep cleaning efficiency higher, cleaning effect more complete.
Waste material box height adjustment mechanism further includes fine tuning screw rod 515, fine-tuning nut 516 and fine tuning seat 517, fine tuning seat 517
It is fixed on 1 inner wall of shell and positioned at 51 lower section of waste material box, fine tuning seat 517, which extends vertically through, is provided with the non-circular fine tuning hole in section
5171, shell 1 offers the handle hole 16 passed through for fine-tuning nut 516, and fine-tuning nut 516 is coaxially disposed with fine tuning hole 5171,
And part extends to 1 outside of shell from handle hole 16 and operation portion 5161, fine tuning screw rod 515 is used as to be provided with and fine-tuning nut 516
The adjustment portion 5151 of screw-thread fit and slipping part 5152 compatible with fine tuning 5171 shape of hole, the upper end of fine tuning screw rod 515 are made
To be butted on the adjustable side 5153 of waste material box bottom, the end face of fine-tuning nut 516 is circumferentially arranged limiting slot 5162, handle hole 16
The limited block 161 being provided in limiting slot 5162, coarse adjustment of the adjustable column as waste material box height, and it is not complete in adjustable column
When full locking, rotary fine adjustment nut 516 can be such that the fine tuning screw rod 515 being butted below waste material box lifts, and be pushed up by fine tuning screw rod 515
The extruding force in portion realizes the trace regulation of waste material box, so that height is adjusted more accurate, in addition, making tune by limiting slot and limited block
Nut is saved without departing from handle hole, ensures that stablizing for regulatory function uses.And in view of operating personnel accidentally touch, operating space and
Operation portion is set to shell rear by machine aesthetic considerations, and design is more reasonable, and operation is more convenient.
The shape of printing nozzle 21 is positive truncated rectangular pyramids, and small end is downward, and each side in 21 periphery of printing nozzle is
The guide surface 22 that scraper 52 is guided to spout changes the peripheral shape of printing nozzle 21, on the one hand, scraper 52 can be accurate
Guiding strikes off waste material silk to nozzle exit area, and on the other hand, scraper 52 can completely be pasted with the side of printing nozzle 21
It closes, the waste material silk for becoming black after enabling long term high temperature to aoxidize is struck off completely, rather than the side of arc-shaped only has before
Limited contact area improves cleaning efficiency and comprehensively degree.
Shell 1 is located at 51 lower section of waste material box and is provided with stripping drawer 6, and 6 top of stripping drawer is provided with receiving port 61, shell
1 rear is provided with the drawer mouth 14 for the insertion of stripping drawer 6, and stripping drawer 6 is provided with the drawer handle outside shell 1
62,51 bottom of waste material box is provided with the discharging hopper 54 opposite with 6 position of stripping drawer, and the width a of stripping drawer 6 is more than or waits
In the width b of print platform 4, the end that stripping drawer 6 is located at shell 1 extends to 4 lower section of print platform, collects to waste material box 51
Waste material silk can be fallen into stripping drawer 6 by gravity, be uniformly processed after 6 centralized collection of stripping drawer, stripping taken out
Drawer 6 is toppled on rear side of shell after extraction, and it is inconvenient caused by waste material box 51 to avoid removing from shell 1, and may go out
Miscellaneous bits also can be directly swept into stripping drawer 6, improved clear by existing equipment damage in addition, after the cleaning of daily print platform 4
The convenience of reason.
6 bottom of stripping drawer is provided with steel ball chamber 63, is slid in the steel ball chamber 63 and is provided with the steel for being limited in steel ball chamber 63
Pearl 631 and the steel ball spring 632 for resetting steel ball 631 downwards, shell 1 are provided with the steel bead groove 15 for being caught in steel ball, clearly
When useless drawer 6 is fully inserted into shell 1, steel ball 631 is matched with 15 phase card of steel bead groove, constitutes the limit of stripping drawer 6, steel ball 631
Match the latching force for giving small amount with 15 phase card of steel bead groove, so that stripping drawer 6 is stablized and be installed in shell 1, while can give
The sound feedback that staff is installed in place is given, realizes man-machine information exchange.
The horizontal subdivision between stripping drawer 6 and print platform 4 of shell 1 is provided with bottom plate 15, and bottom plate 15 is expected with discharging
Bucket 54 and the corresponding position in 4 edge of print platform are provided with the waste discharge mouth 151 being connected with stripping drawer 6, add every in stripping
The bottom plate 15 of drawer 6 and print platform 4 makes print chamber tend to complete cavity, reduces external fluid to internal influence, reduction is beaten
The corner for printing intracavitary avoids part from losing in dismounting while being convenient to clean.
The material of scraper 52 is high-temperature flame-proof cotton, selects material of the high-temperature flame-proof cotton as scraper 52, with waterproof, resistance to
The features such as mill, fire prevention, oil resistant, it is well suited for the worst hot case of 3D printer.
Further include scraper installing mechanism, scraper installing mechanism includes being bonded with scraper 52 and screw is fixed scrapes knife plate 55,
Scrape that knife plate 55 is horizontally disposed to have dovetail to install guide rail 551, dovetail installation guide rail 551 both sides are respectively arranged with sliding in swallow
Tail installs the mounting leg 552 of guide rail 551, is compressed between the mounting leg 552 of both sides and is provided with installation spring 553, compensates seat
53 middle parts are provided with the mounting groove 533 of installation counterbalance spring, and 533 both sides of mounting groove are vertically right with each mounting leg 552 respectively
It should be provided with compensating tank 534, each mounting leg 552 is provided with the installation lifted along compensating tank 534 far from the end for scraping knife plate 55
Bending 554, after 3D printer is processed for a long time, it is difficult to avoid the need for replacing scraper, compressible mounting leg 552 presses
Quickly it can dismantle or install out of compensating tank 534 later, while not influence the compensation function of counterbalance spring, improve and use just
Victory.
Claims (8)
1. a kind of 3D printer with nozzle clearing function, including shell, shell front is provided with operational observations mouth,
3D printing head, the mobile device of driving 3D printing head movement are set in the shell, put down for the molding printing of printed material
The cleaning plant of platform and clear away waste silk, the 3D printing head include the printing nozzle of bottom and the heating around printing nozzle
Mechanism, the cleaning plant include waste material box, scraper and scraper altimetric compensation structure, are offered above the waste material box useless
Expect import, it is characterised in that：Further include waste material box height adjustment mechanism, the waste material box height adjustment mechanism includes adjustable column
And regulating tank, the adjustable column is fixedly installed on waste material box both sides respectively, and shell, the adjusting is connected from shell rear
Slot is located at adjustable column across the position of shell and is vertically arranged, and the adjustable column is provided with the installation to offset with inner walls
Step and the lock nut to offset with housing exterior walls, the lock nut are in screw-thread fit with adjustable column, and the scraper height is mended
It includes compensation seat and counterbalance spring to repay mechanism, and the compensation seat is located at the horizontal middle of the waste material import of waste material box, described
Compensation seat is fixedly installed the fixed arm for extending to waste material box inner wall, the benefit with respect to the both ends of waste material box width direction respectively
Spring is repaid to be located above compensation seat and be vertically compressed between scraper and compensation seat, the blade of the scraper higher than waste material into
Mouthful, mobile device driving 3D printing head after making printing nozzle contact scraper and realizing primary cleaning, drives 3D printing head
Reverse movement realizes secondary cleaning.
2. the 3D printer according to claim 1 with nozzle clearing function, it is characterised in that：The waste material box is high
Degree regulating mechanism further includes fine tuning screw rod, fine-tuning nut and fine tuning seat, and the fine tuning seat is fixed on inner walls and positioned at useless
Below magazine, the fine tuning seat, which extends vertically through, is provided with the non-circular fine tuning hole in section, and the shell is offered for micro-
The handle hole for adjusting nut to pass through, the fine-tuning nut and the coaxial arrangement of fine tuning hole, and part is extended to from handle hole outside shell
As operation portion, the fine tuning screw rod is provided with the adjustment portion of fine-tuning nut screw-thread fit and is mutually fitted with fine tuning hole shape for side
The slipping part matched, the upper end of the fine tuning screw rod is as the adjustable side for being butted on waste material box bottom.
3. the 3D printer according to claim 1 with nozzle clearing function, it is characterised in that：The printing nozzle
Shape be positive truncated rectangular pyramids, and small end is downward, and each side in printing nozzle periphery is to draw scraper to spout
The guide surface led.
4. the 3D printer according to claim 1 with nozzle clearing function, it is characterised in that：The shell is located at
It is provided with stripping drawer below waste material box, is provided with receiving port above the stripping drawer, the shell rear is provided with
For the drawer mouth of the insertion of stripping drawer, the stripping drawer is provided with the drawer handle outside shell, the waste material
Cassette bottom portion is provided with the discharging hopper opposite with stripping drawer positions, and the width of the stripping drawer, which is greater than or equal to printing, puts down
The width of platform, the end that the stripping drawer is located at shell extend to below print platform.
5. the 3D printer according to claim 4 with nozzle clearing function, it is characterised in that：The stripping drawer
Bottom is provided with steel ball chamber, which slides the steel for being provided with the steel ball for being limited in steel ball chamber and resetting steel ball downwards
Pearl spring, the shell is provided with the steel bead groove for being caught in steel ball, when the stripping drawer is fully inserted into shell, institute
It states steel ball and mutually blocks with steel bead groove and match, constitute the limit of stripping drawer.
6. the 3D printer according to claim 4 with nozzle clearing function, it is characterised in that：The shell is located at
Horizontal subdivision is provided with bottom plate, the bottom plate and discharging hopper and print platform edge pair between stripping drawer and print platform
The position answered is provided with the waste discharge mouth being connected with stripping drawer.
7. the 3D printer according to claim 1 with nozzle clearing function, it is characterised in that：The material of the scraper
Matter is high-temperature flame-proof cotton.
8. the 3D printer according to claim 1 with nozzle clearing function, it is characterised in that：It further include scraper installation
Mechanism, the scraper installing mechanism include being bonded with scraper and screw is fixed scrapes knife plate, and described scrapes knife plate along level side
Guide rail is installed to dovetail is provided with, dovetail installation guide rail both sides are respectively arranged with the installation that guide rail is installed in sliding in dovetail
Stabilizer blade, between the mounting leg of both sides compression be provided with installation spring, being provided with installation in the middle part of the compensation seat mends
The mounting groove of spring is repaid, the mounting groove both sides are vertically correspondingly arranged on compensating tank with each mounting leg respectively, each described
Mounting leg the end for scraping knife plate is provided with the installation bending lifted along compensating tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810341534.9A CN108422666B (en) | 2018-04-17 | 2018-04-17 | 3D printer with nozzle cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810341534.9A CN108422666B (en) | 2018-04-17 | 2018-04-17 | 3D printer with nozzle cleaning function |
Publications (2)
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| CN108422666A true CN108422666A (en) | 2018-08-21 |
| CN108422666B CN108422666B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810341534.9A Active CN108422666B (en) | 2018-04-17 | 2018-04-17 | 3D printer with nozzle cleaning function |
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| CN109227170A (en) * | 2018-10-12 | 2019-01-18 | 孙美玲 | A kind of processing of mold is with being convenient for clean die fixture |
| CN110576601A (en) * | 2019-08-16 | 2019-12-17 | 浙江闪铸三维科技有限公司 | multi-nozzle 3D printing method |
| CN112108327A (en) * | 2020-09-23 | 2020-12-22 | 广西欣亿光电科技有限公司 | High-efficient LED packaging structure with fitting and heat dissipation functions |
| CN112440367A (en) * | 2020-11-18 | 2021-03-05 | 康硕(德阳)智能制造有限公司 | 3D ceramic printer |
| CN112622014A (en) * | 2020-12-21 | 2021-04-09 | 沈郑琛 | Pouring mold capable of being conveniently and quickly disassembled |
| CN113059794A (en) * | 2019-12-30 | 2021-07-02 | 四川蓝光英诺生物科技股份有限公司 | Bio-printer and method for scraping nozzle excess material of bio-printer |
| CN114179358A (en) * | 2021-12-15 | 2022-03-15 | 无锡市检验检测认证研究院 | Plastics 3D printer and consumptive material shower nozzle |
| CN114734635A (en) * | 2021-12-28 | 2022-07-12 | 南京铖联激光科技有限公司 | Powder feeding structure of 3D printing equipment |
| WO2024012498A1 (en) * | 2022-07-14 | 2024-01-18 | 上海轮廓科技有限公司 | Nozzle-based waste wiping mechanism for 3d printer, waste discharging device for 3d printer, and 3d printer |
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