CN111136912B - 3D printing quantitative feeding device, 3D printer and printing method - Google Patents
3D printing quantitative feeding device, 3D printer and printing method Download PDFInfo
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- CN111136912B CN111136912B CN202010001473.9A CN202010001473A CN111136912B CN 111136912 B CN111136912 B CN 111136912B CN 202010001473 A CN202010001473 A CN 202010001473A CN 111136912 B CN111136912 B CN 111136912B
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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
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
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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
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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
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
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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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
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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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/245—Platforms or substrates
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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
- B33Y10/00—Processes of additive manufacturing
-
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Ceramic Engineering (AREA)
Abstract
The invention discloses a 3D printing feeding device, a 3D printer and a 3D printing feeding method, wherein the device comprises a base, a feeding assembly, a material loading platform and a platform driving assembly, the feeding assembly, the material loading platform and the platform driving assembly are fixed above the base, the material loading platform is positioned at the lower part of the feeding assembly, the platform driving assembly is positioned at one side of the material loading platform and one side of the feeding assembly, one end of the platform driving assembly is respectively connected with the feeding assembly and the material loading platform, and the platform driving assembly drives the material loading platform to directionally feed materials to a working area. The magazine ration is extruded, and the platform back-and-forth movement has solved and has glued the 3D of the resin that is difficult for flowing and print the problem, especially can use ceramic printing to and the 3D of dentistry wainscot and inlay prints the preparation, can realize the ration feed, has saved the material, and the magazine adopts magnetism to inhale and pinhole location, and the change is dismantled to the convenience, opto-coupler and photoelectricity separation blade and linear guide's use, and the location is accurate, improves the precision.
Description
Technical Field
The invention relates to a 3D printer, in particular to a 3D printing quantitative feeding device, a 3D printer and a printing method.
Background
At present, photocuring 3D printer need be used for printing more viscous material, for example add ceramic powder of a certain proportion in traditional resin material, this kind of material is more viscous, and mobility is poor, so adopt traditional printing cistern feed and print, the material is difficult to the levelling by oneself to lead to printing the incomplete, the precision variation, thereby make the printing precision reduce.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the 3D printer needs to be used for printing thick material to bring the poor problem of printing precision.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a 3D prints quantitative feedway, 3D printer and printing method which characterized in that: including base, feed subassembly, year material platform and platform drive assembly, the feed subassembly the year material platform reaches platform drive assembly is fixed in the base top, its characterized in that: the material loading platform is located at the lower part of the feeding assembly, the platform driving assembly is located at one side of the material loading platform and one side of the feeding assembly, one end of the platform driving assembly is connected with the feeding assembly and the material loading platform respectively, and the platform driving assembly drives the material loading platform to directionally feed materials to a working area.
Furthermore, the feeding assembly comprises a material box, a guide shaft, a pressing rod and an extrusion plate, wherein the upper part of the guide shaft is connected with the pressing rod, the lower part of the guide shaft is connected with the extrusion plate, and the extrusion plate is matched with the inner diameter of the material box.
Furthermore, the bottom of the material box is arranged in a plane.
Furthermore, the device also comprises a fixing plate, wherein the fixing plate is positioned above the material box, and the fixing plate and the material box are positioned through magnetic attraction and/or pin holes.
Furthermore, the material loading platform comprises a material loading glass plate, a transparent film, a glass clamping plate, a film clamping plate and a pressing plate, wherein a clamping groove is formed in the glass clamping plate, the material loading glass plate is arranged in the clamping groove of the glass clamping plate, the transparent film covers the film clamping plate, the periphery of the transparent film is tightly pressed in the clamping groove of the film clamping plate through the pressing plate, and the glass clamping plate is connected with the film clamping plate.
Furthermore, the material-carrying glass plate protrudes from the film clamping plate, and the transparent film is tightly pushed by the material-carrying glass plate so as to be tensioned.
Further, platform drive assembly includes hold-in range conveying subassembly, material platform fixing base, slider mount pad and slider slide rail, carry the material platform to pass through material platform fixing base with the slider mount pad is connected, the slider mount pad is fixed in on the slider slide rail, slider mount pad one end with hold-in range transmission subassembly is connected.
Further, a 3D printer, including the 3D print quantitative feedway above.
Further, the 3D printer still includes Z axle module and ray apparatus module, Z axle module is located base upper portion, the ray apparatus module is located the base lower part.
Further, a 3D printing method includes the steps of:
s10, initially, the z-axis module printing plate is at a certain safe height distance from the glass plate of the material loading platform, and the material loading platform assembly is fixed at a fixed position below the printing plate;
s20, the material loading platform assembly moves a preset distance towards the direction of the material box under the driving of the synchronous belt, the distance is preset as the distance from the center of the printing plate to the center of the material box, after the material loading platform assembly moves in place, the material pressing movement module drives the pressing rod to move downwards for a certain distance, so that the pressing plate is driven to generate extrusion force on the material in the material box, and the material with the same distance and height is coated on the material loading glass plate film; then the glass component of the loading platform starts to reset to an initial position;
s30, moving the printing plate in the z-axis module downwards until the distance between the printing plate and the upper surface of the glass plate of the loading platform and the upper surface of the separation film is one printing layer thickness, and stopping moving;
s40, the optical-mechanical module starts projection exposure, passes through the hollow part of the base platform and the material-carrying glass plate of the material-carrying platform, and aligns to the printing plate of the z-axis module, so that the resin (or material) is solidified and bonded on the printing plate;
and S50, after the exposure is finished, the printing plate drives the printing model to move upwards, so that the model is separated from the film.
The invention has the beneficial effects that: the magazine ration extrusion in the feed subassembly, the platform back-and-forth movement has solved the 3D that glues thick difficult flowing resin and has printed the problem, especially can use ceramic printing to and the 3D of dentistry wainscot and inlay prints the preparation, can realize quantitative feed, save material, improve and print the precision.
Drawings
The detailed structure of the invention is described in detail below with reference to the accompanying drawings
Fig. 1 is a schematic structural diagram of a 3D printing and feeding device, a 3D printer and a method according to the present invention.
Fig. 2 is a schematic structural sectional view of a 3D printing and feeding device, a 3D printer and a method according to the present invention.
Fig. 3 is a flowchart of a 3D printing and feeding device, a 3D printer and a method according to the present invention.
The reference numbers are as follows:
1-a base; 2-a quantitative feeding device; a 3-Z axis module; 4-an optical-mechanical module; 21-a quantitative feeding assembly; 211-a cartridge; 212-a fixed plate to which the cartridge is fixed; 213-fixed cross beam; 214-connecting beam; 215-a compression plate; 216-a guide sleeve; 217-a guide shaft; 218-a pressure bar; 219-pressing movement module; 22-a loading platform; 221-a frit glass plate; 222-glass cardboard; 223-film clamping plate; 224-a platen; 225-PEP transparent films; 23-a platform drive assembly; 231-a material table fixing seat; 232-slider mount; 233-synchronous belt conveying component; 234-baffle plate; 235-optical couplers; 236-linear guide.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1 and 2, a 3D printing quantitative feeding device and a 3D printer include a base 1, a feeding assembly 21, a material loading platform 22 and a platform driving assembly 23, wherein the feeding assembly 21, the material loading platform 22 and the platform driving assembly 23 are fixed above the base 1, the material loading platform 22 is located at the lower portion of the feeding assembly 21, the platform driving assembly 23 is located at one side of the material loading platform 22 and the feeding assembly 21, one end of the platform driving assembly 23 is respectively connected with the feeding assembly 21 and the material loading platform 22, and the platform driving assembly 23 drives the material loading platform 22 to directionally feed materials to a working area.
Specifically, the feeding device comprises a feeding assembly 21 for quantitative feeding, a material loading platform 22 for bearing materials, and a platform driving assembly 23, wherein the feeding assembly comprises a material box 211 for containing printing materials, a fixing plate 212 for fixing the material box, a fixing beam 213 for fixing and adjusting the position of the fixing plate, and a connecting beam 214 connected with the fixing beam, the material box 211 is hollow and is used for containing the materials, the feeding device further comprises an extrusion plate 215, a guide sleeve 216, a guide shaft 217, a pressure rod 218, and a pressing movement module 219, the size of the extrusion plate 215 is matched with the inner diameter of the material box 211 and can freely move up and down in the material box 211, the extrusion plate 215 is connected with the guide shaft 217, the upper part of the guide shaft 217 is connected with the pressure rod 218, one end of the pressure rod 218 is fixed on a sliding block of the pressing movement module 219, the guide shaft 217 penetrates through the guide sleeve 216 and is in clearance fit, the pressing movement module 219 is driven by a motor, the module slider moves up and down to drive the pressure lever 218, the guide shaft 217 and the extrusion plate 215 to move up and down, so that under the guiding action of the guide sleeve 216, the pressure is applied to the material in the material box 211, the material is extruded downwards, the vertical height is accurately controlled, and the purpose of quantitative material supplement is achieved. The material pressing movement module 219 adopts a high-precision lead screw and a guide rail, and the movement precision is accurately controlled, so that the feeding action is accurate and controllable.
Example 1
The feeding assembly comprises a material box 211, a guide shaft 217, a pressure rod 218 and a pressing plate 215, wherein the upper part of the guide shaft 217 is connected with the pressure rod 218, the lower part of the guide shaft 217 is connected with the pressing plate 215, the pressing plate 215 is matched with the inner diameter of the material box 211, and the bottom of the material box 211 is arranged in a plane.
Specifically, the material box 211 is used for containing printing materials, the bottom of the material box 211 is parallel to the glass of the material loading platform 22, the distance between the bottom of the material box 211 and the glass of the material loading platform is 0.1-0.3mm, and the bottom of the material box 211 requires flatness during processing and can be used as a scraper. The material carrying platform 22 drives the material to move, the material passes through the material box 211, is strickled off by the bottom of the material box and is evenly paved on the material carrying platform, and conditions are created for subsequent printing. An adjusting gap exists between the fixed cross beam 213 and the fixed plate 212 of the fixed material box 211, and the material box 211 is parallel to the material loading platform 22 by adjusting the gap between the fixed cross beam 213 and the fixed plate 212. The specific adjusting method adopts two groups of bolts, one group of bolts is tightly propped, and the other group of bolts is tensioned.
Example 2
The fixing plate 212 is positioned above the magazine 211, and the fixing plate 212 and the magazine 211 are positioned through magnetic attraction and/or pin holes.
Specifically, the fixing plate 212 is used for fixing the magazine 211, pin holes are formed in the side face of the magazine 211, four circular hole positions are formed in the top of the magazine 211 and used for installing circular magnetic blocks, the pin holes are formed in the side face of the fixing plate 212 and used for installing pins, the fixing plate 212 is made of iron pieces, the magazine 211 is located through the pins and the fixing plate and is fixed to the fixing plate through magnetic attraction. Thus facilitating the disassembly and replacement of the material box.
Example 3
The material loading platform 22 comprises a material loading glass plate 221, a transparent thin film 225, a glass clamping plate 222, a thin film clamping plate 223 and a pressing plate 224, wherein a clamping groove is formed in the glass clamping plate 222, the material loading glass plate 221 is installed in the clamping groove of the glass clamping plate 222, the transparent thin film 225 covers the thin film clamping plate 223, the periphery of the transparent thin film 225 is tightly pressed in the clamping groove of the thin film clamping plate 223 through the pressing plate 224, and the glass clamping plate 222 is connected with the thin film clamping plate 223.
Specifically, the material loading platform 22 is used for loading materials, the material loading glass plate 221 is made of transparent materials, light can penetrate through the material loading platform from the bottom, the middle of the glass clamping plate 222 is hollow, steps are formed on the periphery of the glass clamping plate, the middle of the film clamping plate 223 is hollow, grooves are formed on the periphery of the film clamping plate 223, the grooves on the periphery of the film clamping plate 223 are matched with the size of the pressing plate 224, and the hollow size of the film clamping plate 223 is matched with the size of the steps on the periphery of the glass clamping plate 222.
Example 4
The frit glass 221 protrudes from the film clamping plate 223, and the frit glass 221 tightly presses the transparent film 225, thereby tensioning the transparent film 225.
Specifically, at this time, the glass plate 221 protrudes from the film clamping plate 223 by about 2mm, and the glass plate 221 can tightly push the film, so as to tension the film and keep the film horizontal.
Example 5
Specifically, platform drive assembly 23, including material platform fixing base 231, slider mount pad 232, hold-in range conveying subassembly 233, separation blade 234, opto-coupler 235, linear guide 236, it is connected with slider mount pad 232 through material platform fixing base 231 to carry material platform 22, and slider mount pad 232 is fixed in on the linear guide 236 slider, and slider mount pad 232 one end is connected with hold-in range transmission subassembly 233, under the drive of hold-in range subassembly 233, carries material platform 22 under the guide rail direction, the seesaw to through the accurate positioning of opto-coupler and separation blade, send the material to the printing area accurately. And further quantitative feeding, accurate positioning and high-precision printing are realized.
Example 6
The utility model provides a 3D printer, includes above 3D print quantitative feedway, 3D printer still includes Z axle module 3 and ray apparatus module 4, Z axle module 3 is located 1 upper portion of base, ray apparatus module 4 is located 1 lower part of base.
Specifically, be equipped with ration feedway's 3D printer, including above-mentioned ration feedway 2, still include base 1, z axle module 3, ray apparatus module 4. The Z-axis module 3 comprises a guide rail screw component moving up and down, a cantilever lifting component and a printing plate, wherein the cantilever lifting component is installed on a guide rail sliding block and can move up and down under the driving of the screw rail component, so that the printing plate is driven to move up and down, the optical mechanical module 4 is arranged inside the base 1, a light outlet of the optical mechanical module 4 is aligned to the hollow transparent part of the platform of the base 1 and the printing plate, and a DLP optical mechanical module 4 is preferably adopted. The feeder 2 is located in front of the z-axis module with the cartridge geometric center aligned with the print plate center. The material carrying platform can bring the material from the material box part to a position below the printing plate. The distance between the material loading platform and the base platform is about 2 mm. And protective glass is arranged in the hollow part of the base platform.
Example 7
Referring to fig. 3, a 3D printing method includes the following steps:
s10, initially, the Z-axis module printing plate is at a certain safe height distance from the glass plate of the material loading platform, and the material loading platform assembly is fixed at a fixed position below the printing plate;
s20, the material loading platform assembly moves a preset distance towards the direction of the material box under the driving of the synchronous belt, the distance is preset as the distance from the center of the printing plate to the center of the material box, after the material loading platform assembly moves in place, the material pressing movement module drives the pressing rod to move downwards for a certain distance, so that the pressing plate is driven to generate extrusion force on the material in the material box, and the material with the same distance and height is coated on the material loading glass plate film; then the glass component of the loading platform starts to reset to an initial position;
s30, moving the printing plate in the z-axis module downwards until the distance between the printing plate and the upper surface of the glass plate of the loading platform and the upper surface of the separation film is one printing layer thickness, and stopping moving;
s40, the optical-mechanical module starts projection exposure, passes through the hollow part of the base platform and the material-carrying glass plate of the material-carrying platform, and aligns to the printing plate of the z-axis module, so that the resin (or material) is solidified and bonded on the printing plate;
and S50, after the exposure is finished, the printing plate drives the printing model to move upwards, so that the model is separated from the film.
Specifically, the material loading platform assembly is driven by the synchronous belt, the moving speed is 20-35mm/s, the pressing motion module drives the pressing rod to move downwards for a certain distance, the distance range is 0.07-0.2mm, the printing layer thickness is usually 0.03-0.1mm, the printing plate drives the printing model to reset to a certain safety height with the material loading glass plate of the material loading platform, and the upper printing layer thickness is subtracted from the height. And repeating the steps S20-S50 to perform next-layer printing, and circulating until the printing is finished. The printing plate moves and the material carrying platform moves, partial time is overlapped, the time sequence is optimized, and the efficiency is improved.
The first … … and the second … … are only used for name differentiation and do not represent how different the importance and position of the two are.
Here, the upper, lower, left, right, front, and rear merely represent relative positions thereof and do not represent absolute positions thereof
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The utility model provides a 3D prints quantitative feedway, includes base, feed subassembly, carries material platform and platform drive assembly, the feed subassembly carry the material platform and the platform drive assembly is fixed in the base top, its characterized in that: the material loading platform is positioned at the lower part of the feeding assembly, the platform driving assembly is positioned at one side of the material loading platform and one side of the feeding assembly, one end of the platform driving assembly is respectively connected with the feeding assembly and the material loading platform, and the platform driving assembly drives the material loading platform to directionally feed materials to a working area;
the platform driving assembly comprises a synchronous belt conveying assembly, a material platform fixing seat, a sliding block mounting seat, a sliding block sliding rail, a blocking piece and an optical coupler, the material loading platform is connected with the sliding block mounting seat through the material platform fixing seat, the sliding block mounting seat is fixed on the sliding block sliding rail, and one end of the sliding block mounting seat is connected with the synchronous belt conveying assembly;
the feeding assembly comprises a material box, a guide shaft, a pressure rod, an extrusion plate and a fixed plate, wherein the upper part of the guide shaft is connected with the pressure rod, the lower part of the guide shaft is connected with the extrusion plate, and the extrusion plate is matched with the inner diameter of the material box; the fixing plate is positioned above the material box, and the fixing plate and the material box are positioned through magnetic attraction and/or pin holes.
2. The 3D printing doser as recited in claim 1, characterized in that: the bottom of the material box is arranged in a plane.
3. The 3D printing doser as recited in claim 1, characterized in that: the material carrying platform comprises a material carrying glass plate, a transparent film, a glass clamping plate, a film clamping plate and a pressing plate, wherein a clamping groove is formed in the glass clamping plate, the material carrying glass plate is installed in the clamping groove of the glass clamping plate, the transparent film is covered on the film clamping plate, the periphery of the transparent film is tightly pressed in the clamping groove of the film clamping plate through the pressing plate, and the glass clamping plate is connected with the film clamping plate.
4. 3D printing dosing device according to claim 3, characterized in that: the material carrying glass plate protrudes out of the film clamping plate, and the transparent film is tightly pushed by the material carrying glass plate so as to be tensioned.
5. The utility model provides a 3D printer which characterized in that: comprising a 3D printing dosing device according to any of claims 1-4.
6. The 3D printer of claim 5, wherein: the 3D printer further comprises a Z-axis module and an optical machine module, the Z-axis module is located on the upper portion of the base, and the optical machine module is located on the lower portion of the base.
7. A3D printing method is characterized by comprising the following steps:
s10, initially, the z-axis module printing plate is at a certain safe height distance from the material loading platform material loading glass plate, and the material loading platform assembly is fixed at a fixed position below the printing plate;
s20, the material loading platform assembly moves a preset distance towards the direction of the material box under the driving of the synchronous belt, the distance is preset as the distance from the center of the printing plate to the center of the material box, after the material loading platform assembly moves in place, the material pressing movement module drives the pressing rod to move downwards for a certain distance, so that the pressing plate is driven to generate extrusion force on the material in the material box, and the material with the same distance and height is coated on the material loading glass plate film; then the glass component of the loading platform starts to reset to an initial position;
s30, moving the printing plate in the z-axis module downwards until the distance between the printing plate and the upper surface of the glass plate of the loading platform and the upper surface of the separation film is one printing layer thickness, and stopping moving;
s40, the optical-mechanical module starts projection exposure, passes through the hollow part of the base platform and the material-carrying glass plate of the material-carrying platform, and is aligned with the printing plate of the z-axis module, so that the material is solidified and bonded on the printing plate;
and S50, after the exposure is finished, the printing plate drives the printing model to move upwards, so that the model is separated from the film.
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| CN202010001473.9A CN111136912B (en) | 2020-01-02 | 2020-01-02 | 3D printing quantitative feeding device, 3D printer and printing method |
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| CN202010001473.9A CN111136912B (en) | 2020-01-02 | 2020-01-02 | 3D printing quantitative feeding device, 3D printer and printing method |
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| CN111136912B true CN111136912B (en) | 2022-02-18 |
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| CN115157664B (en) * | 2022-07-20 | 2023-09-01 | 杭州喜马拉雅信息科技有限公司 | Pressure intelligent control type photo-curing 3D printer |
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