3D printing method
Technical Field
The invention belongs to the technical field of 3D printing, and particularly relates to a 3D printing method.
Background
3D printing is one of the rapid prototyping technologies, which is a technology for constructing an object by using an adhesive material such as powdered metal or plastic and the like in a layer-by-layer printing manner on the basis of a digital model file. Adopt the digital technology material printer to realize when 3D prints normally, 3D printer promptly, the principle of 3D printer is put into the 3D printer data and raw materials, and the machine can be built the product layer by layer according to the procedure. The 3D printer differs from the traditional printer in that the "ink" used in it is a real raw material, and the form of the stacked thin layers is various, and the media available for printing are various, from a wide range of plastics to metals, ceramics and rubber-like substances. Some printers can also combine different media to make one end of the printed object hard and the other soft.
Some 3D printers use an "inkjet" approach. I.e. a very thin layer of liquid plastic material is sprayed onto the mould tray by means of a printer head, and the coating is then subjected to uv light. Later the minimum distance of mould tray decline to supply the one deck to stack up next, this kind of printing is through the liquid raw materials that storage unit needed when storing printing, in reality, conventional storage unit is mostly hard material and makes, and liquid raw materials easily adheres on the inner wall, causes the waste of liquid raw materials, increases use cost, solidifies on the storage unit inner wall after the cooling, has increased the operating time of clearance.
Disclosure of Invention
In order to make up for the defects of the prior art, the 3D printing method provided by the invention uses the storage unit, the storage unit is provided with the rubber bag as a storage vessel, the liquid raw material is not easy to adhere to the inner wall of the rubber bag through the contractibility of the rubber bag, the utilization rate of the liquid raw material is greatly improved, and meanwhile, the spiral stirring shaft in the rubber bag continuously stirs, so that the liquid raw material can be prevented from being solidified, and the inner wall of the rubber bag can be scraped at the later stage of material discharge of the rubber bag, so that the residue of the liquid raw material is reduced as much as possible, and the utilization rate of the liquid raw material is further improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a 3D printing method, which comprises the following steps:
the method comprises the following steps: connecting a data input end of the 3D printer with a data output end of a computer, and starting a power supply for preheating;
step two: drawing a data model to be printed by using modeling software on the computer in the step one;
step three: introducing the data model drawn in the step two into a 3D printer through a data line, and filling liquid raw materials required by printing in a storage unit of the 3D printer;
step four: after the material storage unit of the 3D printer in the step three is filled, adjusting a spray head of the 3D printer, and clicking to print;
wherein, the storage unit comprises a rubber bag, a feed inlet, a discharge pipe, a discharge valve, a conveying motor, an upper supporting plate, a spiral stirring shaft, a lower supporting plate, a sliding block and a fixing frame, the upper end and the lower end of the fixing frame are respectively provided with the sliding block, the sliding block is slidably arranged on the fixing frame, the right end of the upper supporting plate is connected with the sliding block through a connecting rod, the right end of the lower supporting plate is fixedly connected with another sliding block, the upper end of the rubber bag is fixedly connected with the upper supporting plate, the lower end of the rubber bag is connected with the lower supporting plate, the feed inlet is arranged at the upper left end of the rubber bag, the conveying motor is fixedly arranged at the upper end of the upper supporting plate, the spiral stirring shaft is rotatably arranged on the conveying motor, the spiral stirring shaft rotates in the rubber bag, the discharge pipe is fixedly arranged at the lower end, open behind the bleeder valve rubber bag shrink when the ejection of compact of pipeline, one of rubber bag rises and contracts and make the difficult adhesion liquid raw materials of internal surface, the effectual utilization ratio that improves liquid raw materials stirs through the spiral axle rotation to the raw materials in the rubber bag inner chamber, prevents that liquid raw materials from solidifying, the effectual quality that improves the printing.
As a preferable scheme of the invention, the cross section of the spiral stirring shaft is circular, when the spiral stirring shaft is used, the spiral stirring shaft can scrape the inner wall of the rubber bag at the later stage of the material discharge of the rubber bag, so that the utilization rate of liquid raw materials is further improved, and meanwhile, the circular design of the cross section of the spiral stirring shaft can effectively prevent the inner wall of the rubber bag from being scratched in the scraping process, so that the service life of the rubber bag is prolonged.
As a preferred scheme of the invention, a group of steel balls are arranged in the rubber bag, a rotating ring is rotatably arranged at the upper end of the lower supporting plate, the rotating ring rotates by taking the rubber bag as a center, a sliding seat is fixedly arranged on the upper surface of the left side of the rotating ring, a magnet block is slidably arranged on the sliding seat and can control the steel balls to move, a filter screen is arranged in the spiral stirring shaft and can isolate the steel balls, a heating plate is fixedly arranged on the upper surface of the right side of the rotating ring, when the spiral stirring shaft is used, the heating plate rotates around the rubber bag along with the rotating ring to heat the rubber bag and prevent the liquid raw material from solidifying, meanwhile, the magnet block on the sliding seat at the other end of the rotating ring adsorbs the steel balls in the rubber bag to move in the inner cavity, the liquid raw material is further stirred, and the filter screen arranged in the spiral stirring shaft can effectively prevent, influence the printing quality, also can prevent simultaneously that the local caking of liquid raw materials from not fully stirring the discharging pipe jam that causes.
As a preferable scheme of the invention, the skirt edge is arranged on the inner wall of the rubber bag and is vertically arranged along the inner wall of the rubber bag, when the rubber bag is used, the steel balls slide from one side of the skirt edge to the other side of the skirt edge to extrude the liquid raw material between the skirt edges, so that the liquidity of the liquid raw material is increased, the liquid raw material is fully stirred, the local caking phenomenon is avoided, meanwhile, the abrasion of the steel balls on the inner wall of the rubber bag is reduced, and the service life of the rubber bag is prolonged.
As a preferable scheme of the invention, the feed inlet is conical, the conical bottom of the feed inlet is positioned on the inner wall of the rubber bag, when the rubber bag is used, the rubber bag shrinks at the later stage of material discharge of the rubber bag, and the magnet block controls the steel balls to enter the conical bottom of the feed inlet, so that the influence of the steel balls on the scraping process of the spiral stirring shaft is effectively avoided.
As a preferable scheme of the invention, a scraping ring assembly is arranged on the discharge pipe, the scraping ring assembly comprises an annular magnet, an inner scraping ring and a chain wheel transmission system, the chain wheel transmission system is arranged on the outer wall of the discharge pipe in the axial direction, the annular magnet is slidably arranged on the outer wall of the discharge pipe, one side of the annular magnet is connected with a chain on one side of the chain wheel transmission system, the inner scraping ring is slidably arranged on the inner wall of the discharge pipe, a conical opening is arranged at the upper end of the inner scraping ring, the diameter of the conical opening of the inner scraping ring is gradually reduced along the axial direction of the inner scraping ring, when the discharging pipe is used, the annular magnet is enabled to slide back and forth in the axial direction of the discharge pipe by the chain wheel transmission system, the inner scraping ring can slide back and forth on the inner wall of the discharge pipe by the magnetic force of the annular magnet, the liquid raw material adhered to the inner wall of the discharge pipe is scraped by the upper, further improving the utilization rate of the liquid raw material.
As a preferable scheme of the invention, a group of rotating plates are circumferentially arranged inside the inner scraping ring, the rotating plates are rotatably mounted on the inner wall of the inner scraping ring, when the inner scraping ring slides downwards on the inner wall of the discharge pipe in use, the liquid raw material adhered to the inner wall is scraped, the rotating plates rotate and open under the resistance of the liquid raw material to block the backflow of the liquid raw material, the pushing of the liquid raw material is accelerated, and the phenomenon of liquid raw material agglomeration in the discharge pipe is effectively prevented.
The invention has the following beneficial effects:
1. according to the 3D printing method provided by the invention, the storage unit is used, the rubber bag is arranged as a storage vessel, the liquid raw material is not easy to adhere to the inner wall of the rubber bag due to the contractibility of the rubber bag, so that the utilization rate of the liquid raw material is greatly improved, and meanwhile, the spiral stirring shaft in the rubber bag continuously stirs, so that the liquid raw material can be prevented from being solidified, the inner wall of the rubber bag can be scraped at the later stage of the discharge of the rubber bag, the residue of the liquid raw material is reduced as much as possible, and the utilization rate of the liquid raw material is further improved.
2. According to the 3D printing method provided by the invention, the material storage unit is used, steel balls are arranged in the rubber bag, the steel balls can slide on the inner wall of the rubber bag under the control of the magnet blocks on the sliding seat of the rotating ring, the liquid raw materials in the skirt edge of the inner wall of the rubber bag are extruded out to increase the fluidity, the liquid raw materials can be fully stirred, the local agglomeration is avoided, and meanwhile, the heating plate on the rotating ring is used for heating the liquid raw materials in the rubber bag, so that the solidification caused by the temperature reduction is prevented.
3. According to the 3D printing method, the storage unit is used, the scraping ring assembly is arranged on the discharge pipe, and the storage unit slides back and forth in the axial direction of the discharge pipe, so that on one hand, liquid raw materials adhered to the inner wall of the discharge pipe are scraped, the utilization rate is improved, on the other hand, the pushing of the liquid raw materials in the discharge pipe is accelerated, and the phenomenon of agglomeration in the discharge pipe is prevented.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a front view of the magazine unit of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
in the figure: the device comprises a rubber bag 1, a feeding hole 2, a discharging pipe 3, a discharging valve 4, a conveying motor 5, an upper supporting plate 6, a spiral stirring shaft 7, a lower supporting plate 8, a sliding block 9, a fixing frame 10, steel balls 11, a skirt 12, a scraping ring assembly 31, an annular magnet 32, an inner scraping ring 33, a chain wheel transmission system 34, a rotating plate 35, a filter screen 71, a rotating ring 81, a sliding seat 82, a magnet block 83 and a heating plate 84.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 3, the 3D printing method according to the present invention includes the following steps:
the method comprises the following steps: connecting a data input end of the 3D printer with a data output end of a computer, and starting a power supply for preheating;
step two: drawing a data model to be printed by using modeling software on the computer in the step one;
step three: introducing the data model drawn in the step two into a 3D printer through a data line, and filling liquid raw materials required by printing in a storage unit of the 3D printer;
step four: after the material storage unit of the 3D printer in the step three is filled, adjusting a spray head of the 3D printer, and clicking to print;
wherein, the material storage unit comprises a rubber bag 1, a feed inlet 2, a discharge pipe 3, a discharge valve 4, a conveying motor 5, an upper support plate 6, a spiral stirring shaft 7, a lower support plate 8, a slider 9 and a fixing frame 10, wherein the upper end and the lower end of the fixing frame 10 are respectively provided with a slider 9, the slider 9 is slidably mounted on the fixing frame 10, the right end of the upper support plate 6 is connected with one slider 9 through a connecting rod, the right end of the lower support plate 8 is fixedly connected with the other slider 9, the upper end of the rubber bag 1 is fixedly connected with the upper support plate 6, the lower end of the rubber bag 1 is connected with the lower support plate 8, the feed inlet 2 is arranged at the upper left end of the rubber bag 1, the conveying motor 5 is fixedly mounted at the upper end of the upper support plate 6, the spiral stirring shaft 7 is rotatably mounted on the conveying motor 5, the spiral stirring, discharge valve 4 concatenates on discharging pipe 3, during the use, get into rubber bag 1 back rubber bag 1 inflation from feed inlet 2 as liquid raw materials, open rubber bag 1 shrink when discharging through discharging pipe 3 behind discharge valve 4, rubber bag 1 one expand one contract make the difficult adhesion liquid raw materials of inside surface, the effectual utilization ratio that improves liquid raw materials stirs the raw materials of axle 7 rotation in to rubber bag 1 inner chamber through the spiral, prevent that liquid raw materials from solidifying, the effectual quality of printing that has improved.
As an embodiment of the invention, the cross section of the spiral stirring shaft 7 is circular, when the rubber bag scraping device is used, the spiral stirring shaft 7 can scrape the inner wall of the rubber bag 1 at the later stage of material discharging of the rubber bag 1, the utilization rate of liquid raw materials is further improved, meanwhile, the circular design of the cross section of the spiral stirring shaft 7 can effectively prevent the inner wall of the rubber bag 1 from being scratched in the scraping process, and the service life of the rubber bag 1 is prolonged.
As an embodiment of the invention, a group of steel balls 11 are arranged in the rubber bag 1, a rotating ring 81 is rotatably arranged at the upper end of the lower support plate 8, the rotating ring 81 rotates by taking the rubber bag 1 as a center, a sliding seat 82 is fixedly arranged on the upper surface of the left side of the rotating ring 81, a magnet block 83 is slidably arranged on the sliding seat 82, the magnet block 83 can control the movement of the steel balls 11, a filter screen 71 is arranged in the spiral stirring shaft 7, the filter screen 71 can isolate the steel balls 11, a heating plate 84 is fixedly arranged on the upper surface of the right side of the rotating ring 81, when in use, the heating plate 84 rotates around the rubber bag 1 along with the rotating ring 81 to heat the rubber bag 1 and prevent the liquid raw material from being solidified, meanwhile, the magnet block 83 on the sliding seat 82 at the other end of the rotating ring 81 adsorbs the steel balls 11 in the rubber bag 1 to move in the inner cavity, the filter screen 71 arranged in the spiral stirring shaft 7 can effectively prevent the steel balls 11 from being discharged from the discharging pipe 3 during movement to influence the printing quality, and can prevent the discharging pipe 3 from being blocked due to insufficient stirring of local caking of liquid raw materials.
As an embodiment of the invention, the skirt edge 12 is arranged on the inner wall of the rubber bag 1, and the skirt edge 12 is vertically arranged along the inner wall of the rubber bag 1, so that when the rubber bag is used, the steel balls 11 slide from one side of the skirt edge 12 to the other side, the liquid raw materials between the skirt edges 12 are extruded out, the liquidity of the liquid raw materials is increased, the liquid raw materials are fully stirred, the local caking phenomenon is avoided, meanwhile, the abrasion of the steel balls 11 on the inner wall of the rubber bag 1 is reduced, and the service life of the rubber bag 1 is prolonged.
As an embodiment of the invention, the feed port 2 is conical, the conical bottom of the feed port 2 is positioned on the inner wall of the rubber capsule 1, when the rubber capsule 1 is used, the rubber capsule 1 is contracted at the later stage of discharging of the rubber capsule 1, and the magnet block 83 controls the steel balls 11 to enter the conical bottom of the feed port 2, so that the influence of the steel balls 11 on the scraping process of the spiral stirring shaft 7 is effectively avoided.
As an embodiment of the invention, a scraper ring assembly 31 is arranged on the discharge pipe 3, the scraper ring assembly 31 comprises an annular magnet 32, an inner scraper ring 33 and a sprocket transmission system 34, the sprocket transmission system 34 is arranged on the outer wall of the discharge pipe 3 in the axial direction, the annular magnet 32 is slidably mounted on the outer wall of the discharge pipe 3, one end of the annular magnet 32 is connected with a chain on one side of the sprocket transmission system 34, the upper end of the inner scraper ring 33 is provided with a cone, the diameter of the cone of the inner scraper ring 33 decreases along the axial direction of the inner scraper ring 33, when in use, the sprocket transmission system 34 is used to enable the annular magnet 32 to slide back and forth in the axial direction of the discharge pipe 3, the inner scraper ring 33 can slide back and forth on the inner wall of the discharge pipe 3 along with the magnetic force of the annular magnet 32, and the liquid raw material adhered to the inner wall of the discharge pipe 3 is scraped by, the taper design of the upper end of the inner scraping ring 33 is more convenient for the passing of the scraped liquid raw material, and the utilization rate of the liquid raw material is further improved.
As an embodiment of the invention, a group of rotating plates 35 are circumferentially arranged inside the inner scraping ring 33, the rotating plates 35 are rotatably mounted on the inner wall of the inner scraping ring 33, when in use, when the inner scraping ring 33 slides downwards on the inner wall of the discharge pipe 3, the liquid raw material adhered on the inner wall is scraped, the rotating plates 35 rotate and expand under the resistance of the liquid raw material to block the backflow of the liquid raw material, the pushing of the liquid raw material is accelerated, and the phenomenon of liquid raw material agglomeration in the discharge pipe 3 is effectively prevented.
When the rubber bag heating device is used, after liquid raw materials enter the rubber bag 1 from the feeding hole 2, the rubber bag 1 expands, after the discharge valve 4 is opened, the rubber bag 1 is discharged through the discharge pipe 3, the liquid raw materials are not easy to adhere to the inner surface due to one expansion and one contraction of the rubber bag 1, the utilization rate of the liquid raw materials is effectively improved, the raw materials in the inner cavity of the rubber bag 1 are stirred through the rotation of the spiral stirring shaft 7, the solidification of the liquid raw materials is prevented, the printing quality is effectively improved, in the later stage of the material discharge of the rubber bag 1, the inner wall of the rubber bag 1 can be scraped by the spiral stirring shaft 7, the utilization rate of the liquid raw materials is further improved, meanwhile, the scratch to the inner wall of the rubber bag 1 in the scraping process can be effectively prevented through the circular design of the section of the spiral stirring shaft 7, the service life of the rubber bag 1 is prolonged, the heating plate, prevent the liquid raw material from solidifying, meanwhile, the magnet block 83 on the sliding seat 82 at the other end of the rotating ring 81 adsorbs the steel balls 11 in the rubber bag 1 to move in the inner cavity, further stir the liquid raw material, the filter screen 71 arranged in the spiral stirring shaft 7 can effectively prevent the steel balls 11 from being discharged from the discharging pipe 3 when moving, which affects the printing quality, and simultaneously can prevent the discharging pipe 3 from being blocked due to the partial caking of the liquid raw material caused by insufficient stirring, the steel balls 11 slide from one side to the other side of the skirt edge 12 to extrude the liquid raw material between the skirt edges 12, thereby increasing the fluidity of the liquid raw material, fully stirring the liquid raw material, avoiding the occurrence of the partial caking phenomenon, simultaneously reducing the abrasion of the steel balls 11 to the inner wall of the rubber bag 1, prolonging the service life of the rubber bag 1, when the rubber bag 1 is discharged in the later stage, the rubber bag 1 shrinks, and the magnet, the influence of the steel balls 11 on the scraping process of the spiral stirring shaft 7 is effectively avoided, the annular magnet 32 can slide back and forth in the axial direction of the discharging pipe 3 by the aid of the chain wheel transmission system 34, the inner scraping ring 33 can slide back and forth on the inner wall of the discharging pipe 3 along with the magnetic force of the annular magnet 32, the liquid raw materials adhered to the inner wall of the discharging pipe 3 are scraped by the aid of the upper end and the lower end of the inner scraping ring 33, the liquid raw materials scraped by the upper end and the lower end of the inner scraping ring 33 can pass through the conical opening at the upper end of the inner scraping ring 33, the utilization rate of the liquid raw materials is further improved, when the inner scraping ring 33 slides downwards on the inner wall of the discharging pipe 3, the liquid raw materials adhered to the inner wall are scraped, the rotating plate 35 rotates and opens under the resistance of the liquid raw materials to prevent backflow of the liquid raw.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.