CN108422666B - 3D printer with nozzle cleaning function - Google Patents
3D printer with nozzle cleaning function Download PDFInfo
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- CN108422666B CN108422666B CN201810341534.9A CN201810341534A CN108422666B CN 108422666 B CN108422666 B CN 108422666B CN 201810341534 A CN201810341534 A CN 201810341534A CN 108422666 B CN108422666 B CN 108422666B
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- waste
- scraper
- printing
- shell
- trimming
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- 238000004140 cleaning Methods 0.000 title claims abstract description 47
- 239000002699 waste material Substances 0.000 claims abstract description 153
- 238000007639 printing Methods 0.000 claims abstract description 71
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000010146 3D printing Methods 0.000 claims abstract description 14
- 238000009966 trimming Methods 0.000 claims description 48
- 238000009434 installation Methods 0.000 claims description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- 239000003381 stabilizer Substances 0.000 claims description 14
- 229920000742 Cotton Polymers 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000008021 deposition Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000000110 selective laser sintering Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000010792 warming 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
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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
- B29C64/10—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]
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- 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
Abstract
The utility model relates to a 3D printer with a nozzle cleaning function, which comprises a shell, wherein an operation observation port is arranged in front of the shell, a 3D printing head, a moving device for driving the 3D printing head to move, a printing platform for printing material forming and a cleaning device for cleaning waste wires are arranged in the shell, the cleaning device comprises a waste box, a scraper and a scraper height compensation structure, a waste inlet is formed above the waste box, and the 3D printer further comprises a waste box height adjusting mechanism, wherein the moving device drives the 3D printing head, and after the printing nozzle contacts the scraper and realizes primary cleaning, the 3D printing head is driven to reversely move to realize secondary cleaning. By adopting the scheme, the utility model provides the 3D printer with the nozzle cleaning function, which has the advantages of simple structure, simplicity and convenience in operation and high stability, and overcomes the defects of the traditional cleaning device.
Description
Technical Field
The utility model relates to a 3D printer, in particular to a 3D printer with a nozzle cleaning function.
Background
A 3D printer, a machine of the rapid prototyping technique, is a technique for constructing objects by means of layer-by-layer printing using a bondable material such as powdered metal or plastic based on digital model files. In the past, it has been used in the field of mold manufacturing, industrial design, etc. for manufacturing models, and is now gradually used for direct manufacturing of some products.
The existing mainstream 3D printing technology mainly includes four kinds of: light curing molding (SLA), three-dimensional powder bonding (3 DP), selective Laser Sintering (SLS), fused deposition rapid prototyping (FDM). The 3D printer based on the photo-curing forming technology, the three-dimensional powder bonding technology and the selective laser sintering technology is high in precision, applicable materials are wide, large power is often required, the technology is complex, equipment cost, maintenance cost and material cost are high, and therefore the current application range is mainly concentrated in the field of high-end manufacturing.
Fused deposition (Fused Deposition Modeling, FDM), also called fuse deposition, mainly uses a filament-like hot-melt material as a raw material, melts by heating, and extrudes the liquefied raw material through a nozzle head of a fine printing nozzle. The raw materials are sprayed out and then deposited on the manufactured panel or the solidified material of the previous layer, solidification is started after the temperature is lower than the melting point, and the final finished product is formed by stacking the materials layer by layer.
In the process of the FDM printer, the spray head is in a high temperature state, and under the action of gravity, melted materials naturally leak out of the printing nozzle to form waste wires. Typically in a high temperature printing state, the leaked material can avoid the occurrence of scrap wire phenomenon by back drawing the wire. However, no pumpback can be used before printing (nozzle warming process) and after printing (nozzle cooling process), once the waste filaments are formed, they cannot be cleaned, and the damage of the waste material blocks mainly exists in the following aspects:
1. in the process of tape guiding, the waste silk can reach a printing platform in advance compared with the actual printing material and is accumulated below the actual printing material, so that a bulged convex hull is caused, the model precision is reduced, and even printing fails;
2. the waste silk naturally falls off from the printing nozzle and is mixed into mechanical parts in the 3D printer, so that hardware damage is caused;
3. the waste silk adheres around the printing nozzle, becomes black liquid and drips on the surface of the model after long-term high-temperature oxidation, and not only influences the appearance of the model, but also can cause plugs for a long time.
Currently, to eliminate the above drawbacks, most operators mechanically remove the scrap wire:
1. the device directly removes the waste silk by hands or tweezers in the working state;
2. and preheating the spray head in a state that the machine does not work, and wiping the waste silk and the periphery of the spray head by using the dust-free cloth or paper towel of the forceps clamp.
The manual treatment methods are all in a high-temperature working state of equipment, and have potential safety hazards. To solve the above problems, chinese patent application No. 201510950657.9 discloses a 3D printer based on FDM technology, in which a cleaning device for cleaning waste wires is added to the inside of the apparatus, the cleaning device having a wiper cotton whose height is adjusted by a compression spring, and the waste wires are wiped off when a printing nozzle is in contact with the wiper cotton; the Chinese patent application No. 201520468321.4 discloses an automatic cleaning device for a 3D printer nozzle, wherein a scraper with an elastic piece for adjusting the height and a waste box for collecting waste are arranged in the device, and when a printing nozzle is contacted with the blade, waste wires are scraped off and fall into the waste box. However, the two cleaning modes still have certain disadvantages when applied to actual work:
1. the cleaning device does not have a height adjusting function, and after the wiping material is consumed, the Z axis cannot be calibrated and compensated through the height adjustment, so that the cleaning device needs to replace the wiping material frequently;
2. the waste silk processing device has no perfect waste silk processing function, but when waste silk in the waste silk box needs to be dumped, workers need to stretch hands into the equipment to detach the waste silk box and take the waste silk box out from between the printing nozzle and the printing platform, on one hand, the operation mode is extremely inconvenient, and on the other hand, because the internal space of the equipment is limited, the waste silk box is extremely easy to collide with other elements in the equipment in the process of taking and placing, and the printing precision and the service life are influenced;
3. the printing nozzle is not provided with a perfect printing nozzle applicable structure, wiping cotton and the position of the blade corresponding to the tail end of the printing nozzle must be extremely accurate in the cleaning process, otherwise, the cleaning effect is greatly reduced, in addition, the later cleaning device is in contact with the scraper in a single direction because the scraper is positioned on the side wall of the waste box, otherwise, waste wires fall onto the printing platform, and the cleaning device becomes flexible and sufficient.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide the 3D printer with the nozzle cleaning function, which has the characteristics of simple structure, simplicity and convenience in operation, high stability, capability of overcoming various defects of the traditional cleaning device, realization of automatic cleaning of printing nozzles, clean-up, high speed and the like.
In order to achieve the above purpose, the present utility model provides the following technical solutions: including the casing, the casing the place ahead be provided with the operation viewing aperture, the casing in set up the mobile device that 3D printed the head, drive 3D printed the head and remove, be used for printing material fashioned print platform and clearance waste silk's cleaning device, 3D print the head including the printing nozzle of bottom and around printing nozzle's heating mechanism, cleaning device include waste box, scraper and scraper high compensation mechanism, waste box top seted up the waste import, still include waste box high adjustment mechanism, waste box high adjustment mechanism include adjusting post and regulating groove, the adjusting post fixed respectively set up in waste box both sides, and switch on the casing from the casing rear, the regulating groove be located the position that the adjusting post passed the casing and along vertical setting, the adjusting post be provided with the installation step that the casing inner wall offsets and with the lock nut that the casing outer wall offsets, this lock nut is screw-thread fit with the adjusting post, high compensation mechanism include compensation seat and compensation spring, the compensation seat be located the horizontal middle part of waste box's waste import, the relative width compensation arm setting in two opposite sides of waste box and the blade, the opposite direction is fixed to the realization and is located two and is compressed in the waste box 3D and is fixed to the realization and is moved the blade and is compressed in the opposite direction between the printing device and the printing device.
Through adopting above-mentioned technical scheme, add waste material box height adjustment mechanism for adjust waste material box height, adjust the height of scraper promptly, in time carry out calibration and compensation relative Z axle, in addition, as main calibration component, the lock nut of regulator position is located the casing outside, can calibrate its position not opening the casing, improve the convenience of calibration, in addition, adjust scraper position to waste material box middle part, no matter in which direction and 3D printing head contact homoenergetic the scraper fall into the waste material box by the waste material silk of scraping, avoid the waste material silk to fall to print platform top, in addition, both saved the inconvenience of single scraping needs side shift return, make single removal can realize coming and going twice moreover, make cleaning efficiency higher, the cleaning effect is more complete.
The utility model is further provided with: the waste box height adjusting mechanism also comprises a trimming screw, a trimming nut and a trimming seat, wherein the trimming seat is fixed on the inner wall of the shell and positioned below the waste box, a trimming hole with a non-circular cross section is vertically arranged on the trimming seat in a penetrating mode, an operation hole for the trimming nut to penetrate through is formed in the shell, the trimming nut and the trimming hole are coaxially arranged, the operation hole is partially extended to the outer side of the shell to serve as an operation part, the trimming screw is provided with an adjusting part in threaded fit with the trimming nut and a sliding part in shape matching with the trimming hole, the upper end of the trimming screw serves as an adjusting end propping against the bottom of the waste box, a limiting groove is formed in the end face of the trimming nut along the circumferential direction, and a limiting block positioned in the limiting groove is arranged in the operation hole.
Through adopting above-mentioned technical scheme, adjust the post and regard as the coarse adjustment of waste material box height, and when adjusting the post and not locking completely, rotatory fine setting nut can make to lift in the fine setting screw of waste material box below, realizes the micro-adjustment of waste material box by the extrusion force at fine setting screw top, makes high regulation more accurate, in addition, makes adjusting nut can not break away from the operation hole through spacing groove and stopper, guarantees the steady use of regulatory function, and the operation position is located the casing rear, and the operation is more convenient.
The utility model is further provided with: the printing nozzle is in a regular quadrangular frustum pyramid shape, the smaller end of the printing nozzle faces downwards, and all side surfaces of the periphery of the printing nozzle are guiding surfaces for guiding the scraper to the nozzle.
Through adopting above-mentioned technical scheme, change printing nozzle's periphery shape, on the one hand, the scraper can be guided to spout position by the accuracy, scrapes the waste silk, and on the other hand, the scraper can laminate completely with printing nozzle's side, makes the waste silk that becomes black after long-term high temperature oxidation can be scraped completely, and the arc side just has limited area of contact before not, improves clean efficiency and comprehensive.
The utility model is further provided with: the waste removing device is characterized in that a waste removing drawer is arranged below the waste box, a receiving opening is arranged above the waste removing drawer, an inserted drawer opening for the waste removing drawer is arranged at the rear of the casing, a drawer handle arranged outside the casing is arranged on the waste removing drawer, a discharging hopper opposite to the waste removing drawer in position is arranged at the bottom of the waste box, the width of the waste removing drawer is larger than or equal to that of the printing platform, and the end part of the waste removing drawer located in the casing extends to the lower portion of the printing platform.
Through adopting above-mentioned technical scheme, collect the waste silk to the waste material box and receive the action of gravity and can fall into clear useless drawer in, collect the back unified processing in clear useless drawer is concentrated, avoid demolishing the inconvenience that the waste material box brought in the casing to and the equipment that probably appears damages, in addition, after daily print platform clearance, also can directly sweep into clear useless drawer with miscellaneous bits, improve the convenience of clearance.
The utility model is further provided with: the waste-removing drawer is characterized in that a steel ball cavity is arranged at the bottom of the waste-removing drawer, a steel ball limited in the steel ball cavity and a steel ball spring for resetting the steel ball downwards are arranged in the steel ball cavity in a sliding manner, a steel ball groove for clamping the steel ball is formed in the shell, and when the waste-removing drawer is completely inserted into the shell, the steel ball is clamped with the steel ball groove to form limiting of the waste-removing drawer.
By adopting the technical scheme, the steel balls and the steel ball grooves are clamped with each other to give a small locking force, so that the waste removing drawer can be stably arranged in the shell, and meanwhile, the sound feedback of the in-place installation of workers can be given, and the man-machine information interaction is realized.
The utility model is further provided with: the shell is positioned between the waste removing drawer and the printing platform, a bottom plate is arranged at the horizontal separation position, and a waste discharging port communicated with the waste removing drawer is arranged at the position corresponding to the edge of the discharging hopper and the edge of the printing platform.
Through adopting above-mentioned technical scheme, add and separate in clear useless drawer and print platform's bottom plate, make the printing chamber tend to complete cavity, reduce external fluid to inside influence, reduce the corner of printing the intracavity, avoid the part to lose when the dismouting when being convenient for clear up.
The utility model is further provided with: the scraper is made of high-temperature fireproof cotton.
By adopting the technical scheme, the high-temperature fireproof cotton is selected as the material of the scraper, has the characteristics of water resistance, wear resistance, fire resistance, oil resistance and the like, and is very suitable for the high-temperature working condition of the 3D printer.
The utility model is further provided with: still include scraper installation mechanism, scraper installation mechanism include with scraper laminating and screw fixation's scraper plate, the scraper plate be provided with the forked tail installation guide rail along the horizontal direction, forked tail installation guide rail both sides be provided with respectively and slide in the installation stabilizer blade of forked tail installation guide rail, the both sides the installation stabilizer blade between the compression be provided with installation spring, the compensation seat middle part be provided with the mounting groove of installation compensation spring, the mounting groove both sides along vertical be provided with the compensation groove with each installation stabilizer blade respectively, each the installation stabilizer blade keep away from the end of scraper plate and be provided with along the installation of compensation groove lift and bend.
Through adopting above-mentioned technical scheme, after 3D printer long-time processing, be difficult to avoid changing the scraper, compressible installation stabilizer blade is pressed the back and can be dismantled or install from the compensating groove fast, does not influence compensation function of compensating spring simultaneously, improves the convenience of use.
The utility model is further described below with reference to the drawings and detailed description.
Drawings
FIG. 1 is a perspective view of a first embodiment of the present utility model;
FIG. 2 is a second perspective view of an embodiment of the present utility model;
FIG. 3 is an enlarged view of A in FIG. 1;
FIG. 4 shows the arrangement of the waste box, the printing platform and the waste removing drawer according to the embodiment of the utility model;
FIG. 5 is a perspective view of a cartridge removal cartridge height adjustment mechanism in accordance with an embodiment of the present utility model;
FIG. 6 is a schematic view of the structure of the housing and the waste drawer according to the embodiment of the present utility model;
FIG. 7 is a schematic view of the structure of the trimming screw, the trimming nut and the trimming seat according to the embodiment of the utility model;
fig. 8 is a schematic structural view of a doctor blade mounting mechanism in accordance with an embodiment of the present utility model.
Detailed Description
As shown in fig. 1-8, the utility model discloses a 3D printer with nozzle cleaning function, comprising a housing 1, a printing cavity 12 arranged in the housing 1, an operation observation port 11 arranged in front, a 3D printing head 2 arranged in the printing cavity 12, a moving device 3 driving the 3D printing head 2 to move, a printing platform 4 for printing material forming and a cleaning device 5 for cleaning waste wires, wherein the moving device 3 is an existing device driving the printing head 2 to move three-dimensionally along an X axis, a Y axis and a Z axis, the 3D printing head 2 comprises a printing nozzle 21 at the bottom and a heating mechanism surrounding the printing nozzle 21, the heating mechanism is an existing mechanism, the effect of which is to easily spray out the wires after melting, so as to facilitate rapid and accurate forming, which is not shown in the drawing, but does not affect structural understanding, ensuring that the printing head 2 can move to any position of the printing cavity 12, the cleaning device 5 comprises a waste box 51, a scraper 52 and a scraper height compensation mechanism, wherein a waste inlet 511 is formed above the waste box 51, the cleaning device further comprises a waste box height adjustment mechanism, the waste box height adjustment mechanism comprises an adjustment column 512 and an adjustment groove 13, the adjustment column 512 is respectively and fixedly arranged at two sides of the waste box 51 and penetrates through the shell 1 from the rear of the shell 1, the adjustment groove 13 is positioned at the position where the adjustment column 512 penetrates through the shell 1 and is vertically arranged, the adjustment column 512 is provided with a mounting step 513 propped against the inner wall of the shell 1 and a locking nut 514 propped against the outer wall of the shell 1, the locking nut 514 is in threaded fit with the adjustment column 512, the scraper height compensation mechanism comprises a compensation seat 53 and a compensation spring 531, the compensation seat 53 is positioned at the horizontal middle part of the waste inlet 511 of the waste box 51, two ends of the compensation seat 53 in the width direction relative to the waste box 51 are respectively fixedly provided with a fixing arm 532 extending to the inner wall of the waste box 51, the compensation spring 531 is located above the compensation seat 53 and vertically compresses between the scraper 52 and the compensation seat 53, the blade edge of the scraper 52 is higher than the waste inlet 511, after the moving device 3 drives the 3D printing head 2, the printing nozzle 21 contacts the scraper 52 and realizes one-time cleaning, the 3D printing head 2 is driven to move reversely to realize secondary cleaning, the angle of the printing nozzle 21 contacting the scraper 52 is optimal in the direction perpendicular to the scraper, the waste box height adjusting mechanism is additionally arranged and used for adjusting the height of the waste box 51, namely adjusting the height of the scraper 52, the calibration and compensation are timely carried out relative to the Z axis, in addition, as a main calibration component, the locking nut 514 at the position of the regulator is located outside the shell 1, the position of the shell 1 can be calibrated without opening the shell 1, the convenience of the calibration is improved, in addition, the scraper 52 is adjusted to the middle part of the waste box, no matter in which direction the scraper 52 contacts the 3D printing head 2, the scraped waste wire falls into the waste box, the waste wire can be prevented from falling onto the upper part of the printing platform 4, the effect of round trip can be realized twice through one-time movement, the effect of cleaning efficiency is higher, and the cleaning effect is more complete.
The waste box height adjusting mechanism further comprises a trimming screw 515, a trimming nut 516 and a trimming seat 517, the trimming seat 517 is fixed on the inner wall of the shell 1 and is positioned below the waste box 51, a trimming hole 5171 with a non-circular cross section is vertically arranged in the trimming seat 517 in a penetrating mode, an operation hole 16 for the trimming nut 516 to penetrate is formed in the shell 1, the trimming nut 516 and the trimming hole 5171 are coaxially arranged, part of the trimming nut 516 extends to the outer side of the shell 1 to serve as an operation part 5161, the trimming screw 515 is provided with an adjusting part 5151 in threaded fit with the trimming nut 516 and a sliding part 5152 in shape fit with the trimming hole 5171, the upper end of the trimming screw 515 serves as an adjusting end 5153 abutting against the bottom of the waste box, a limiting groove 5162 is formed in the end face of the trimming screw 515 in the circumferential direction, a limiting block 161 is arranged in the operation hole 16, an adjusting column serves as coarse adjustment of the height of the waste box, when the adjusting column is not fully locked, the trimming screw 516 is rotated, the micro-up and-down of the waste box 515 can be achieved, the height adjustment of the waste box is achieved by the extrusion force of the top of the trimming screw, in addition, the height adjustment of the waste box can be enabled to be more accurate through the limiting block and the limiting function can not be ensured through the limiting groove and the adjusting function can be ensured. And consider that operating personnel bumps by mistake, operating space and machine aesthetic property factor, set up operating portion in the casing rear, the design is more reasonable, and the operation is more convenient.
The shape of printing nozzle 21 is regular quadrangular frustum pyramid, and less end orientation below, and each side of printing nozzle 21 periphery is the guide surface 22 that guides scraper 52 to the spout, changes printing nozzle 21's periphery shape, on the one hand, scraper 52 can be accurately guided to the spout position, scrapes the waste silk, on the other hand, scraper 52 can laminate completely with printing nozzle 21's side, makes the waste silk that becomes black after long-term high temperature oxidation can be scraped completely, and the side of circular-arc just has limited area of contact before, improves cleaning efficiency and comprehensively.
The waste material collecting device comprises a shell 1, a waste material box 51, a waste material box 6, a receiving opening 61, a drawer handle 62, a discharging hopper 54, a waste material wire and a waste material wire, wherein the waste material box 6 is arranged below the waste material box 51, the receiving opening 61 is arranged above the waste material box 6, the drawer opening 14 is used for inserting the waste material box 6 is arranged behind the shell 1, the drawer handle 62 is arranged outside the shell 1, the discharging hopper 54 opposite to the waste material box 6 is arranged at the bottom of the waste material box 51, the width a of the waste material box 6 is greater than or equal to the width b of a printing platform 4, the waste material wire collected to the waste material box 51 falls into the waste material box 6 under the action of gravity, the waste material wire is collected in the waste material box 6 after being collected in a concentrated mode, the waste material box 6 is poured out from the rear side of the shell, inconvenience caused by the waste material box 51 is avoided, and possibly occurring equipment damage is avoided, and after the printing platform 4 is cleaned, the waste material wire can be directly scanned into the waste material box 6, and convenience is improved.
The bottom of the waste removing drawer 6 is provided with a steel ball cavity 63, the steel ball cavity 63 is internally and slidably provided with a steel ball 631 limited in the steel ball cavity 63 and a steel ball spring 632 for resetting the steel ball 631 downwards, when the waste removing drawer 6 clamped in the steel ball groove is completely inserted into the shell 1, the steel ball 631 is clamped with the steel ball groove to limit the waste removing drawer 6, the steel ball 631 and the steel ball groove are clamped with a small locking force, so that the waste removing drawer 6 can be stably arranged in the shell 1, simultaneously, the sound feedback of the in-place installation of workers can be given, and the man-machine information interaction is realized.
The casing 1 is located between clear useless drawer 6 and the print platform 4 horizontal separation and is provided with bottom plate 15, and the position that bottom plate 15 corresponds with ejection of compact hopper 54 and print platform 4 edge is provided with the waste discharge mouth 151 that links to each other with clear useless drawer 6, adds to separate in the bottom plate 15 of clear useless drawer 6 and print platform 4, makes the printing chamber tend to complete cavity, reduces external fluid to inside influence, reduces the corner of printing the intracavity, avoids the part to lose when the dismouting when being convenient for clear up.
The scraper 52 is made of high-temperature fireproof cotton, and the scraper 52 is made of high-temperature fireproof cotton, has the characteristics of water resistance, wear resistance, fire resistance, oil resistance and the like, and is very suitable for the high-temperature working condition of the 3D printer.
Still include scraper installation mechanism, scraper installation mechanism includes the scraper plate 55 with scraper 52 laminating and screw fixation, scraper plate 55 is provided with the forked tail mounting rail 551 along the horizontal direction, forked tail mounting rail 551 both sides are provided with respectively and slide in the installation stabilizer blade 552 of forked tail mounting rail 551, the compression is provided with installation spring 553 between the installation stabilizer blade 552 of both sides, the compensation seat 53 middle part is provided with the mounting groove 533 of installation compensation spring, the mounting groove 533 both sides are provided with the compensation groove 534 along vertical correspondence with each installation stabilizer blade 552 respectively, the end that scraper plate 55 was kept away from to each installation stabilizer blade 552 is provided with the installation of following the compensation groove 534 and bends 554, after 3D printer long-time processing, be difficult to avoid changing the scraper, can dismantle or install in the compensation groove 534 fast after compressible installation stabilizer blade 552 presses, do not influence compensation spring's compensation function simultaneously, improve the convenience of using.
Claims (5)
1. The utility model provides a 3D printer with nozzle clearance function, includes the casing, the casing the place ahead be provided with the operation viewing aperture, the casing in set up the mobile device that 3D printed the head, drive 3D printed the head and remove, be used for printing material fashioned print platform and clearance waste silk's cleaning device, 3D print the head including the printing nozzle of bottom and around the heating mechanism who prints the nozzle, cleaning device include waste box, scraper and scraper altitude compensation mechanism, waste box top seted up waste material import, its characterized in that: the waste box height adjusting mechanism comprises adjusting columns and adjusting grooves, the adjusting columns are respectively fixedly arranged on two sides of the waste box and are communicated with the shell from the rear of the shell, the adjusting grooves are positioned at positions where the adjusting columns penetrate through the shell and are vertically arranged along the shell, the adjusting columns are provided with mounting steps propped against the inner wall of the shell and locking nuts propped against the outer wall of the shell, the locking nuts are in threaded fit with the adjusting columns, the scraper height compensating mechanism comprises a compensating seat and a compensating spring, the compensating seat is positioned in the horizontal middle of a waste inlet of the waste box, fixing arms extending to the inner wall of the waste box are respectively fixedly arranged at two ends of the compensating seat relative to the width direction of the waste box, the compensating spring is positioned above the compensating seat and is vertically compressed between a scraper and the compensating seat, the edge of the scraper is higher than the waste inlet, and the moving device drives the 3D printing head to contact and realize primary cleaning, and then drives the 3D printing head to reversely move to realize secondary cleaning;
the waste box height adjusting mechanism further comprises a trimming screw, a trimming nut and a trimming seat, wherein the trimming seat is fixed on the inner wall of the shell and is positioned below the waste box, a trimming hole with a non-circular cross section is vertically arranged on the trimming seat in a penetrating mode, an operation hole for the trimming nut to penetrate through is formed in the shell, the trimming nut and the trimming hole are coaxially arranged, part of the trimming nut extends to the outer side of the shell from the operation hole to serve as an operation part, the trimming screw is provided with an adjusting part in threaded fit with the trimming nut and a sliding part in shape fit with the trimming hole, and the upper end of the trimming screw serves as an adjusting end propped against the bottom of the waste box;
the printing nozzle is in a regular quadrangular frustum pyramid shape, the smaller end of the printing nozzle faces downwards, and each side face of the periphery of the printing nozzle is a guide surface for guiding the scraper to the nozzle;
still include scraper installation mechanism, scraper installation mechanism include with scraper laminating and screw fixation's scraper plate, the scraper plate be provided with the forked tail installation guide rail along the horizontal direction, forked tail installation guide rail both sides be provided with respectively and slide in the installation stabilizer blade of forked tail installation guide rail, the both sides the installation stabilizer blade between the compression be provided with installation spring, the compensation seat middle part be provided with the mounting groove of installation compensation spring, the mounting groove both sides along vertical be provided with the compensation groove with each installation stabilizer blade respectively, each the installation stabilizer blade keep away from the end of scraper plate and be provided with along the installation of compensation groove lift and bend.
2. The 3D printer with nozzle cleaning function according to claim 1, wherein: the waste removing device is characterized in that a waste removing drawer is arranged below the waste box, a receiving opening is arranged above the waste removing drawer, an inserted drawer opening for the waste removing drawer is arranged at the rear of the casing, a drawer handle arranged outside the casing is arranged on the waste removing drawer, a discharging hopper opposite to the waste removing drawer in position is arranged at the bottom of the waste box, the width of the waste removing drawer is larger than or equal to that of the printing platform, and the end part of the waste removing drawer located in the casing extends to the lower portion of the printing platform.
3. The 3D printer with nozzle cleaning function according to claim 2, wherein: the waste-removing drawer is characterized in that a steel ball cavity is arranged at the bottom of the waste-removing drawer, a steel ball limited in the steel ball cavity and a steel ball spring for resetting the steel ball downwards are arranged in the steel ball cavity in a sliding manner, a steel ball groove for clamping the steel ball is formed in the shell, and when the waste-removing drawer is completely inserted into the shell, the steel ball is clamped with the steel ball groove to form limiting of the waste-removing drawer.
4. The 3D printer with nozzle cleaning function according to claim 2, wherein: the shell is positioned between the waste removing drawer and the printing platform, a bottom plate is arranged at the horizontal separation position, and a waste discharging port communicated with the waste removing drawer is arranged at the position corresponding to the edge of the discharging hopper and the edge of the printing platform.
5. The 3D printer with nozzle cleaning function according to claim 1, wherein: the scraper is made of high-temperature fireproof cotton.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810341534.9A CN108422666B (en) | 2018-04-17 | 2018-04-17 | 3D printer with nozzle cleaning function |
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| CN201810341534.9A CN108422666B (en) | 2018-04-17 | 2018-04-17 | 3D printer with nozzle cleaning function |
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| CN108422666B true CN108422666B (en) | 2024-01-30 |
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| CN109227170B (en) * | 2018-10-12 | 2020-12-08 | 浙江三进科技有限公司 | Die machining is with mould fixing device convenient to it is clean |
| 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 |
| 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 |
| CN112108327B (en) * | 2020-09-23 | 2021-12-31 | 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 |
| CN114179358B (en) * | 2021-12-15 | 2023-07-21 | 无锡市检验检测认证研究院 | Plastic 3D printer and consumable nozzle |
| CN114734635B (en) * | 2021-12-28 | 2023-08-08 | 南京铖联激光科技有限公司 | Powder feeding structure of 3D printing equipment |
| CN217622248U (en) * | 2022-07-14 | 2022-10-21 | 上海轮廓科技有限公司 | A mouth mechanism, waste discharge device and 3D printer are wiped to waste material for 3D printer |
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