CN113910408A - Printing forming machine and method based on graphene composite particle injection and photocuring cooperation - Google Patents
Printing forming machine and method based on graphene composite particle injection and photocuring cooperation Download PDFInfo
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- CN113910408A CN113910408A CN202111087846.XA CN202111087846A CN113910408A CN 113910408 A CN113910408 A CN 113910408A CN 202111087846 A CN202111087846 A CN 202111087846A CN 113910408 A CN113910408 A CN 113910408A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 73
- 239000011246 composite particle Substances 0.000 title claims abstract description 63
- 238000007639 printing Methods 0.000 title claims abstract description 47
- 238000000016 photochemical curing Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000002347 injection Methods 0.000 title abstract description 13
- 239000007924 injection Substances 0.000 title abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 239000007921 spray Substances 0.000 claims abstract description 37
- 239000000919 ceramic Substances 0.000 claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 15
- 238000005507 spraying Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- -1 graphite alkene Chemical class 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000007723 transport mechanism Effects 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 12
- 239000010410 layer Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000002114 nanocomposite Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010146 3D printing Methods 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010288 cold spraying Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000007771 core particle Substances 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
Abstract
A printing forming machine and a method based on graphene composite particle injection and photocuring cooperation mainly comprise a support, wherein a spray head driving mechanism is installed on the upper portion of the support and drives an improved spray head to move up and down and left and right; the lower part of the bracket is provided with a bottom plate assembly, and the bottom plate assembly is driven by a front-back driving mechanism to move back and forth; the improved sprayer comprises a shell, wherein a first nozzle and a second nozzle are arranged in the shell, and ultraviolet light tubes are arranged on the left and right of the lower end of the outer part of the shell; the upper end of the first nozzle is provided with a feeding hole, the lower end of the first nozzle is provided with a discharging hole, the side wall of the first nozzle is tangentially provided with at least one airflow hole, and when the graphene composite particles are ejected, the input rotating airflow disperses the graphene composite particles; and the lower end of the second nozzle is provided with a plurality of nozzle holes, and the ceramic melt slurry is sprayed out through the nozzle holes. The printing forming machine and method based on the cooperation of graphene composite particle injection and photocuring can improve printing precision.
Description
Technical Field
The invention relates to a printing forming machine, in particular to a printing forming machine and a method based on the cooperation of graphene composite particle spraying and photocuring, and specifically relates to the purposes of spraying, fusing and photocuring graphene composite particles and ceramic molten slurry and finally forming parts.
Background
The development of 3D printing technology aims to improve the printing volume, precision, speed, uniformity of printing structures and the direction of multi-material of the structures. Under the continuous updating and iteration of the manufacturing industry, the light-cured additive manufacturing technology attracts attention since the first preparation of a stereolithography machine with laser focal spot scanning and accumulation forming in the united states in 1986. In the principle process, photopolymers are combined and attached to a printing platform through laser action, and then are stacked layer by layer to finally form a three-dimensional structure.
The graphene jet printing technology is a technology based on a cold spraying principle, focuses on deposition of precise nano/micron-sized materials by utilizing the aerodynamic or mechanical vibration principle, and effectively and controllably disperses prepared graphene composite particles on a carrier, so that the problem that the graphene is difficult to disperse due to the unique microstructure of the graphene is solved, and meanwhile, the excellent characteristics of the graphene are retained to the greatest extent.
And the 3D printing forming machine of graphite alkene composite particle injection and photocuring cooperatees photocuring vibration material disk manufacturing technique in graphite alkene injection printing technique, has drawn the advantage of the two, has not only guaranteed the shaping precision of component, has also realized simultaneously that graphite alkene is controllable dispersion formation electric conduction network in whole component, provides a brand-new thinking for electromagnetic shielding field component preparation.
At present photocuring 3D printer passes through special spotlight design, can accomplish quick surface shaping, possess more stable performance, have higher resolution ratio. The size precision of the part printed by the current commercial injection 3D printing forming machine in a material injection mode can reach +/-0.1%, and the part printing forming machine can be used for printing some tool parts and performing prototype manufacturing. However, in the prior art, a special process for combining the graphene composite particle spray printing and the photocuring molding is not provided, the material used by the spray 3D molding machine is the graphene composite particle, the binder is the photocuring material, and the like, and the graphene composite particle spray and photocuring cooperative printing molding machine is designed by combining the advantages of the graphene composite particle spray printing and the photocuring cooperative printing molding machine.
Disclosure of Invention
The invention aims to solve the technical problem of providing a printing and forming machine and a method based on the cooperation of graphene composite particle injection and photocuring, combining the injection printing and forming technology and the photocuring and forming technology, and forming a part with ultrahigh precision by utilizing the advantages of the two technologies.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a printing and forming machine based on graphene composite particle injection and photocuring cooperation comprises a support, wherein a spray head driving mechanism is installed on the upper portion of the support and drives an improved spray head to move up and down and left and right; the lower part of the bracket is provided with a bottom plate assembly, and the bottom plate assembly is driven by a front-back driving mechanism to move back and forth;
the improved sprayer comprises a shell, wherein a first nozzle and a second nozzle are arranged in the shell, and ultraviolet light tubes are arranged on the left and right of the lower end of the outer part of the shell; the upper end of the first nozzle is provided with a feeding hole, the lower end of the first nozzle is provided with a discharging hole, the side wall of the first nozzle is tangentially provided with at least one airflow hole, and when the graphene composite particles are ejected, the input rotating airflow disperses the graphene composite particles; and the lower end of the second nozzle is provided with a plurality of nozzle holes, and the ceramic melt slurry is sprayed out through the nozzle holes.
And scrapers are arranged on the outer sides of the first nozzle and the second nozzle at the lower part of the shell.
The support comprises a horizontal bottom frame and a vertical frame, wherein the horizontal bottom frame and the vertical frame are vertically arranged and are connected into a whole through foot supports.
The spray head driving mechanism comprises cross beam plates arranged on longitudinal beams of the vertical frame, and the two cross beam plates are driven to synchronously lift through a screw rod mechanism respectively; the improved sprayer is arranged on the cross beam guide rail in a sliding mode and is driven to move left and right through the first belt conveying mechanism.
The lead screw mechanism comprises a first motor fixing plate, the first motor fixing plate is fixedly installed on a longitudinal beam of the vertical frame, a first stepping motor is installed on the first motor fixing plate, an output shaft of the first stepping motor is connected with a lead screw through a lead screw coupler, the middle section of the lead screw is in threaded connection with the cross beam plate, the upper end of the lead screw is rotatably installed on a first fixing clamp, and the first fixing clamp is fixed on the top end of the vertical frame.
The first belt transmission mechanism comprises a second stepping motor arranged on a cross beam plate, a driving belt pulley is arranged at the output end of the second stepping motor, a driven belt pulley is arranged on the cross beam plate far away from one side of the driving belt pulley, a belt is wound on the driving belt pulley and the driven belt pulley, and the belt is fixed with a cross beam guide rail clamp on the improved spray head.
The bottom plate assembly comprises a first bottom plate, a second bottom plate, a third bottom plate and a fourth bottom plate, and the first bottom plate and the second bottom plate are connected through a supporting bolt, a supporting spring and a supporting bolt sleeve; the third bottom plate is positioned between the first bottom plate and the second bottom plate, and the fourth bottom plate is positioned above the second bottom plate.
The front and rear driving mechanism comprises sliding bearings which are arranged at the lower end of the first bottom plate, and the sliding bearings are arranged in a bilateral symmetry manner and are in sliding fit with the bottom guide rail on the support; and a first bottom plate between the two groups of sliding bearings is provided with a slot clamping plate, the slot clamping plate is connected with a second belt conveying mechanism, and the second belt conveying mechanism is arranged on the support and driven by a third stepping motor.
And the upper and lower sections of the belt of the second belt conveying mechanism are guided and tensioned through a first guide wheel and a second guide wheel on the belt bracket respectively.
A method for printing based on ejection and photocuring cooperation of graphene composite particles comprises the following steps:
step 1: importing the three-dimensional model into a computer, carrying out grid processing on the model by the computer, importing the forming operation of the model into a 3D printer, and printing;
step 2: during printing, the ceramic melt slurry stored in the improved spray head is sprayed out through the second spray nozzle, and then the first belt conveying mechanism is used for driving the scraper on the improved spray head to move left and right to scrape the ceramic melt slurry sprayed on the fourth bottom plate to be smooth;
step 3: then, introducing air flow into two air flow holes on a graphene composite particle nozzle in the improved spray head, directly jetting the graphene composite particles at the upper end opening of the improved spray head, dispersing the graphene composite particles by using rotating air flow, uniformly paving the graphene composite particles on the scraped ceramic molten slurry, and opening an ultraviolet light tube to perform photocuring on the graphene composite particles to finish primary spraying;
step 4: repeating the steps to spray the material for the next time.
The invention relates to a printing forming machine and a method based on the cooperation of graphene composite particle injection and photocuring, which have the following technical effects:
1) the jet printing molding technology and the photocuring molding technology are combined, and parts with ultrahigh accuracy are molded by utilizing the advantages of the two technologies.
2) The graphene is large in specific surface area, easy to agglomerate and difficult to disperse uniformly, the graphene and a base material are prepared into graphene-base composite particles through a special process, and the composite particles are subjected to jet printing forming, so that the controllable composite forming of the graphene and the base material can be realized.
With Fe3O4Nanoparticles as core particles are exemplified: in order to solve the problems of light weight, large specific surface area, easy agglomeration and the like of graphene, the graphene is dispersed into absolute ethyl alcohol through ultrasonic dispersion, and the graphene and Fe are coated by utilizing a coating technology3O4The nano particles are organically combined, and the graphene and the Fe are effectively controlled by controlling the temperature, the heating time, the stirring speed and the component ratio in the composite particles3O4The nano particles are uniformly adhered, and finally, the graphene/Fe which is good in flowability, excellent in wave absorbing performance and capable of being used for jet printing is prepared through ball milling3O4Nanometer compositeAnd (4) synthesizing particles. Using graphene/Fe3O4Preparing microwave absorbing material entity from nano composite particles, and analyzing and testing different graphene/Fe3O4The microwave absorption performance of the nano composite particles, the coupling action rule of the nano composite particles and the microwave absorption performance are researched, and the microwave reflection and wave absorption mechanisms of the nano composite particles are disclosed. Finally, the forming process of the wave-absorbing structure is decomposed into single-layer film base material preparation and graphene/Fe3O4Three progressive forming technologies of nano composite particle embedding and multi-layer unit photocuring printing. By researching the embedding behavior and the combination mechanism of the graphene composite particles and the base material, the graphene composite particles and the base material are embedded into a matrix through spraying and photocuring collaborative printing, so that a graphene three-dimensional ordered network structure is constructed, and a wave-absorbing functional structural member with wide frequency band, strong absorption, light weight and thin thickness is manufactured.
3) The graphene composite particles are sprayed by direct jet flow through the nozzle, and are dispersed by the rotating airflow, so that the graphene composite particles are uniformly paved inside the part, and the part has the superior performance of the graphene composite particles.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
FIG. 3 is a schematic structural diagram of an improved showerhead of the present invention.
FIG. 4 is a schematic structural diagram of an improved showerhead of the present invention.
Fig. 5 is a schematic structural view of the stent of the present invention.
FIG. 6 is a schematic structural diagram of a driving mechanism of a nozzle of the present invention.
Fig. 7 is a schematic structural view of the first belt conveying mechanism in the present invention.
Fig. 8 is a schematic structural view of the bottom plate assembly of the present invention.
Fig. 9 is a front view of the base plate assembly of the present invention.
In the figure: the device comprises a bracket 1, a spray head driving mechanism 2, an improved spray head 3, a bottom plate component 4, a front and back driving mechanism 5, a shell 6, a first spray nozzle 7, a second spray nozzle 8, a feed inlet 9, a discharge outlet 10, an airflow hole 11, a nozzle hole 12, a scraper 13, an ultraviolet light tube 14, a beam guide rail clamp 15, a guide rail clamp 16, a beam plate 2.1, a screw rod mechanism 2.2, a beam 2.3, a beam guide rail 2.4, a first belt conveying mechanism 2.5, a first motor fixing plate 2.2.1, a first stepping motor 2.2, a screw rod coupling 2.2.3, a screw rod 2.2.4, a first fixing clamp 2.2.5, a driving belt pulley 2.5.2, a driven belt pulley 2.5.3, a belt 2.5.4, a first bottom plate 4.1, a second bottom plate 4.2, a third bottom plate 4.3, a fourth bottom plate 4.4, a supporting plate 4.5, a second belt conveying mechanism and a supporting mechanism, a third step motor 5.4, a first guide wheel 5.5 and a second guide wheel 5.6.
Detailed Description
As shown in fig. 1-2, a printing and forming machine based on the cooperation of graphene composite particle injection and photocuring comprises a support 1, wherein a nozzle driving mechanism 2 is installed on the upper portion of the support 1, and the nozzle driving mechanism 2 is used for driving an improved nozzle 3 to move up and down and left and right. A bottom plate assembly 4 is arranged at the lower part of the bracket 1, and the bottom plate assembly 4 is driven by a front-back driving mechanism 5 to move back and forth.
As shown in fig. 5, the bracket 1 includes a horizontal chassis 1.1 and a vertical frame 1.2, and the horizontal chassis 1.1 and the vertical frame 1.2 are both rectangular frame structures and are arranged perpendicular to each other. The horizontal underframe 1.1 and the vertical frame 1.2 are connected into a whole through a foot support 1.3.
As shown in fig. 6, the nozzle drive mechanism 2 is mounted on a vertical frame 1.2. The nozzle driving mechanism 2 comprises cross beam plates 2.1 arranged on longitudinal beams of a vertical frame 1.2, and the two cross beam plates 2.1 are driven to synchronously lift through a screw rod mechanism 2.2 respectively. The two beam plates 2.1 are connected into a whole through the beam 2.3, the beam 2.3 is provided with a clamping groove, and the beam guide rail 2.4 is clamped into the clamping groove and locked and fixed. The improved spray head 3 is arranged on the beam guide rail 2.4 in a sliding way through a beam guide rail clamp 15 and is driven to move left and right through a first belt conveying mechanism 2.5.
As shown in fig. 6, specifically, the screw mechanism 2.2 includes a first motor fixing plate 2.2.1, the first motor fixing plate 2.2.1 is fixedly mounted on the longitudinal beam of the vertical frame 1.2, the first stepping motor 2.2 is mounted on the first motor fixing plate 2.2.1, the output shaft of the first stepping motor 2.2.2 is connected with the screw rod 2.2.4 through the screw rod coupler 2.2.3, the middle section of the screw rod 2.2.4 is in threaded connection with the cross beam plate 2.1, the upper end of the screw rod 2.2.4 is rotatably mounted on the first fixing clamp 2.2.5, and the first fixing clamp 2.2.5 is fixed on the top end of the vertical frame 1.2.
When the two first stepping motors 2.2.2 are started, the two first stepping motors 2.2.2 rotate synchronously, and then the left and right beam plates 2.1 are driven to lift synchronously.
As shown in fig. 7, the first belt transmission mechanism 2.5 includes a second stepping motor 2.5.1 installed on the beam plate 2.1, a driving pulley 2.5.2 is installed at an output end of the second stepping motor 2.5.1, a driven pulley 2.5.3 is installed on the beam plate 2.1 far away from the driving pulley 2.5.2, a belt 2.5.4 is wound on the driving pulley 2.5.2 and the driven pulley 2.5.3, and the belt 2.5.4 is fixed with a beam guide rail clamp 15 on the improved nozzle 3.
When the second stepping motor 2.5.1 is started, the improved spray head 3 on the belt 2.5.4 can move left and right through the forward and reverse rotation of the second stepping motor 2.5.1.
As shown in fig. 3-4, the improved nozzle 3 includes a housing 6, a first nozzle 7 and a second nozzle 8 are installed inside the housing 6, and the first nozzle 7 and the second nozzle 8 are integrally formed. The first nozzle 7 is used for spraying graphene composite particles, and the second nozzle 8 is used for spraying ceramic melt slurry.
As shown in fig. 4, the first nozzle 7 has an overall hollow structure, a feed inlet 9 is provided at the upper end of the first nozzle 7, a discharge outlet 10 is provided at the lower end of the first nozzle, and the discharge outlet 10 is a plurality of small through holes. Two airflow holes 11 are tangentially arranged on the side wall of the first nozzle 7, the air inlet directions of the two airflow holes 11 are opposite, the airflow holes 11 are used for introducing airflow, the direct jet flow of the nozzle of the graphene composite particles sprays the graphene composite particles, and meanwhile, the graphene composite particles are dispersed by using rotary airflow.
As shown in fig. 3, the second nozzle 8 is a hollow structure with a rectangular parallelepiped shape, and has an opening at the upper end thereof for facilitating the addition of ceramic slurry. The bottom of the second nozzle 8 is provided with six nozzle bores 12.
As shown in fig. 4, scrapers 13 are mounted on the outer sides of the first nozzle 7 and the second nozzle 8 at the lower part of the housing 6, and the two groups of scrapers 13 are used for scraping ceramic slurry sprayed by the nozzles of the ceramic slurry, so as to uniformly spray graphene composite particles on the ceramic slurry.
As shown in fig. 3, ultraviolet tubes 14 are installed at the left and right sides of the lower end of the exterior of the housing 6, and are used for performing a photo-curing process on the ceramic melt slurry on which the graphene composite particles have been sprayed.
As shown in fig. 8 to 9, the bottom plate assembly 4 includes a first bottom plate 4.1, a second bottom plate 4.2, a third bottom plate 4.3 and a fourth bottom plate 4.4, wherein a support bolt sleeve 4.7 is fixed at four corners of the first bottom plate 4.1, a support bolt 4.5 freely passes through the second bottom plate 4.2 and then is in threaded connection with the support bolt sleeve 4.7, and a support spring 4.6 is installed on the support bolt 4.5 between the first bottom plate 4.1 and the second bottom plate 4.2. The third bottom plate 4.3 is positioned between the first bottom plate 4.1 and the second bottom plate 4.2, and the lower end of the third bottom plate 4.3 is in surface contact with the upper end surface of the first bottom plate 4.1 through a plurality of buttresses. The fourth bottom plate 4.4 is located above the second bottom plate 4.2. The bottom layer plate is used for installing a sliding bearing, the two and three layer plates can be matched with a gap, a pipeline, wires and the like can be arranged in the middle, and the top forming layer can be made of high-temperature resistant or special materials and used for meeting different functional requirements.
As shown in fig. 8-9 and 5, the front and rear driving mechanism 5 includes two sets of sliding bearings 5.1 mounted at the lower end of the first bottom plate 4.1, the two sets of sliding bearings 5.1 are arranged symmetrically, the left and right sliding bearings 5.1 are in sliding fit with the bottom guide rail 5.7 on the bracket 1, and the bottom guide rail 5.7 is fixed on the bracket 1 through a guide rail clamp. The first bottom plate 4.1 between the two groups of sliding bearings 5.1 is provided with a slot plate 5.2, the slot plate 5.2 is connected with a second belt conveying mechanism 5.3, belt pulleys at two ends of the second belt conveying mechanism 5.3 are arranged on a belt bracket, the belt bracket is fixedly arranged on the bracket 1, and one belt pulley is driven by a third stepping motor 5.4.
In addition, a first guide wheel 5.5 and a second guide wheel 5.6 are arranged on the belt bracket, and the first guide wheel 5.5 and the second guide wheel 5.6 guide and tension the upper and lower sections of the belt of the second belt conveying mechanism 5.3.
When the third stepping motor 5.4 is started, the second belt conveying mechanism 5.3 can drive the bottom plate component 4 to move forwards or backwards.
A method for printing based on ejection and photocuring cooperation of graphene composite particles comprises the following steps:
step 1: and (3) importing the three-dimensional model into a computer, carrying out grid processing on the model by the computer, importing the forming operation of the model into a 3D printer, and printing.
Step 2: during printing, the ceramic melt paste stored in the improved nozzle 3 is sprayed out through the second nozzle 8, and then the first belt conveying mechanism 2.5 is utilized to drive the scraper on the improved nozzle 3 to move left and right to scrape the ceramic melt paste sprayed on the fourth bottom plate 4.4 to be smooth.
Step 3: and then, introducing air flow into the two air flow holes 11 on the graphene composite particle nozzle in the improved spray head 3, directly jetting graphene composite particles at the upper end opening of the improved spray head, dispersing the graphene composite particles by using rotary air flow, uniformly paving the graphene composite particles on the scraped ceramic molten slurry, and opening the ultraviolet light tube 14 to perform photocuring on the ceramic molten slurry to finish primary spraying.
Step 4: repeating the steps to spray the material for the next time. Namely, spraying ceramic slurry, spraying composite particles, then performing photocuring, and then spraying ceramic slurry, spraying composite particles, and performing photocuring in sequence.
Claims (10)
1. The utility model provides a based on compound particle of graphite alkene sprays and photocuring is printing make-up machine in coordination which characterized in that: comprises a bracket (1), wherein the upper part of the bracket (1) is provided with a spray head driving mechanism (2), and the spray head driving mechanism (2) drives an improved spray head (3) to move up and down and left and right; a bottom plate assembly (4) is mounted at the lower part of the bracket (1), and the bottom plate assembly (4) is driven by a front-back driving mechanism (5) to move back and forth;
the improved sprayer (3) comprises a shell (6), a first nozzle (7) and a second nozzle (8) are installed in the shell (6), and ultraviolet tubes (14) are installed on the left and right of the lower end of the outer part of the shell (6); the upper end of the first nozzle (7) is provided with a feeding hole (9), the lower end of the first nozzle is provided with a discharging hole (10), the side wall of the first nozzle (7) is tangentially provided with at least one airflow hole (11), and when the graphene composite particles are ejected, the input rotary airflow disperses the graphene composite particles; the lower end of the second nozzle (8) is provided with a plurality of nozzle holes (12), and the ceramic melt slurry is sprayed out through the nozzle holes (12).
2. The printing and forming machine based on the ejection of graphene composite particles and the photocuring cooperation is characterized in that: and a scraper (13) is arranged on the outer sides of the first nozzle (7) and the second nozzle (8) at the lower part of the shell (6).
3. The printing and forming machine based on the ejection of graphene composite particles and the photocuring cooperation is characterized in that: the support (1) comprises a horizontal underframe (1.1) and a vertical frame (1.2), wherein the horizontal underframe (1.1) and the vertical frame (1.2) are vertically arranged and are connected into a whole through a foot support (1.3).
4. The printing and forming machine based on the ejection of graphene composite particles and the photocuring cooperation is characterized in that: the spray head driving mechanism (2) comprises cross beam plates (2.1) arranged on longitudinal beams of a vertical frame (1.2), and the two cross beam plates (2.1) are driven to synchronously lift through a screw rod mechanism (2.2); crossbeam (2.3) are connected with between two crossbeam boards (2.1), install crossbeam guide rail (2.4) on crossbeam (2.3), and improvement shower nozzle (3) slide to be set up on crossbeam guide rail (2.4) and remove about through first belt transport mechanism (2.5) drive.
5. The printing and forming machine based on the ejection of graphene composite particles and the photocuring cooperation is characterized in that: screw rod mechanism (2.2) includes first motor fixed plate (2.2.1), first motor fixed plate (2.2.1) fixed mounting is on the longeron of vertical frame (1.2), install on first motor fixed plate (2.2.1) first step motor (2.2.2), the output shaft of first step motor (2.2.2) passes through lead screw shaft coupling (2.2.3) and is connected with lead screw (2.2.4), lead screw (2.2.4) interlude and crossbeam board (2.1) threaded connection, rotatable the installing on first fixation clamp (2.2.5) in lead screw (2.2.4) upper end, the top at vertical frame (1.2) is fixed in first fixation clamp (2.2.5).
6. The printing and forming machine based on the ejection of graphene composite particles and the photocuring cooperation is characterized in that: first belt transport mechanism (2.5) are including installing second step motor (2.5.1) on crossbeam board (2.1), driving pulley (2.5.2) are installed to the output of second step motor (2.5.1), keep away from and install passive pulley (2.5.3) on crossbeam board (2.1) of driving pulley (2.5.2) one side, driving pulley (2.5.2), the belt (2.5.4) of having a rich on passive pulley (2.5.3), belt (2.5.4) are fixed with crossbeam guide rail clamp (15) on improvement shower nozzle (3).
7. The printing and forming machine based on the ejection of graphene composite particles and the photocuring cooperation is characterized in that: the bottom plate assembly (4) comprises a first bottom plate (4.1), a second bottom plate (4.2), a third bottom plate (4.3) and a fourth bottom plate (4.4), and the first bottom plate (4.1) and the second bottom plate (4.2) are connected through a support bolt (4.5), a support spring (4.6) and a support bolt sleeve (4.7); the third bottom plate (4.3) is positioned between the first bottom plate (4.1) and the second bottom plate (4.2), and the fourth bottom plate (4.4) is positioned on the second bottom plate (4.2).
8. The printing and forming machine based on the ejection of graphene composite particles and the photocuring cooperation is as claimed in claim 7, wherein: the front and rear driving mechanism (5) comprises sliding bearings (5.1) arranged at the lower end of the first base plate (4.1), and the sliding bearings (5.1) are arranged in a left-right symmetrical mode and are in sliding fit with bottom guide rails (5.7) on the support (1); a first bottom plate (4.1) between two groups of sliding bearings (5.1) is provided with a clamping groove plate (5.2), the clamping groove plate (5.2) is connected with a second belt conveying mechanism (5.3), and the second belt conveying mechanism (5.3) is arranged on a support (1) and driven by a third stepping motor (5.4).
9. The printing and forming machine based on the ejection of graphene composite particles and the photocuring cooperation is as claimed in claim 8, wherein: the upper and lower sections of the belt of the second belt conveying mechanism (5.3) are guided and tensioned through a first guide wheel (5.5) and a second guide wheel (5.6) on the belt bracket respectively.
10. The method for printing on the basis of the printing and forming machine combining graphene composite particle spraying and photocuring, according to any one of claims 1 to 9, comprises the following steps:
step 1: importing the three-dimensional model into a computer, carrying out grid processing on the model by the computer, importing the forming operation of the model into a 3D printer, and printing;
step 2: during printing, the ceramic melt slurry stored in the improved spray head (3) is sprayed out through the second nozzle (8), and then the first belt conveying mechanism (2.5) is utilized to drive the scraper on the improved spray head (3) to move left and right to scrape the ceramic melt slurry sprayed on the fourth bottom plate (4.4) to be smooth;
step 3: then, introducing air flow into two air flow holes (11) on a graphene composite particle nozzle in the improved spray head (3), directly jetting graphene composite particles at an upper end opening of the improved spray head, dispersing the graphene composite particles by using rotating air flow, uniformly paving the graphene composite particles on the scraped ceramic molten slurry, and opening an ultraviolet light tube (14) to perform photocuring on the graphene composite particles to finish primary spraying;
step 4: repeating the steps to spray the material for the next time.
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Application publication date: 20220111 Assignee: Hubei Benben Technology Co.,Ltd. Assignor: CHINA THREE GORGES University Contract record no.: X2023980047911 Denomination of invention: A collaborative printing molding machine and method based on graphene composite particle spraying and photocuring Granted publication date: 20230602 License type: Common License Record date: 20231123 |