CN115925346A - 3D printing waste material baking-free process and equipment thereof - Google Patents
3D printing waste material baking-free process and equipment thereof Download PDFInfo
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- CN115925346A CN115925346A CN202211238002.5A CN202211238002A CN115925346A CN 115925346 A CN115925346 A CN 115925346A CN 202211238002 A CN202211238002 A CN 202211238002A CN 115925346 A CN115925346 A CN 115925346A
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- 239000002699 waste material Substances 0.000 title claims abstract description 38
- 238000010146 3D printing Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003756 stirring Methods 0.000 claims abstract description 52
- 239000000203 mixture Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 14
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 5
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 63
- 238000007789 sealing Methods 0.000 claims description 45
- 239000002994 raw material Substances 0.000 claims description 30
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 19
- 238000005507 spraying Methods 0.000 claims description 19
- 239000000919 ceramic Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 15
- 229920001971 elastomer Polymers 0.000 claims description 13
- 239000010440 gypsum Substances 0.000 claims description 12
- 229910052602 gypsum Inorganic materials 0.000 claims description 12
- 239000004816 latex Substances 0.000 claims description 12
- 229920000126 latex Polymers 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 12
- 239000000047 product Substances 0.000 claims description 12
- 239000012498 ultrapure water Substances 0.000 claims description 9
- 239000013543 active substance Substances 0.000 claims description 8
- 239000011265 semifinished product Substances 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 6
- 238000007639 printing Methods 0.000 claims description 6
- 239000008213 purified water Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000012190 activator Substances 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 238000007605 air drying Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 238000007592 spray painting technique Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 230000015271 coagulation Effects 0.000 abstract 1
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- 239000002131 composite material Substances 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000008214 highly purified water Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
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- 239000004743 Polypropylene Substances 0.000 description 1
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Images
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a 3D printing waste material baking-free process and equipment thereof, wherein the 3D printing waste material baking-free process comprises the following materials in parts by weight: the invention can keep the fluid state of the mixture and prolong the setting time of the mixture through rosin resin and retarder, and meanwhile, the 3D printer can keep the fluidity of the mixture in the pipe body through the equipment structure in the stirring component to avoid the coagulation of the mixture; in addition, the waste materials are ground into powder and then recycled, so that the environment-friendly energy-saving low-carbon composite material has certain effects of environmental protection, energy conservation and low carbon.
Description
Technical Field
The invention relates to the field of ceramic manufacturing, in particular to a 3D printing waste material baking-free process and equipment thereof.
Background
In the 3D printing technology in the prior art, generally, polypropylene is melted and solidified and molded at a processing table through a movable nozzle to obtain a finished product, while in the prior art, ceramics are molded by using 3D printing equipment in a manner of taking ceramic powder mixed gel as a raw material, but the ceramic powder added with the gel cannot keep a flowing state in a raw material pipe of the 3D printing equipment for a long time, is easy to gradually solidify in the raw material pipe and cannot be discharged when molecules of the gel are stable, and meanwhile, when the raw material is filled, the raw material pipe needs to be repeatedly opened, which affects the sealing effect of the raw material pipe in the past for a long time;
and the finished product can be obtained only after the raw materials are molded by forging and firing, which is inconvenient and prolongs the time for obtaining the finished product, and the cracking of partial products can occur in the firing process to influence the yield of the finished products.
Disclosure of Invention
The invention provides a 3D printing waste burn-free process and equipment thereof, which overcome the defects described in the background technology.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the 3D printing waste material baking-free process comprises the following materials in parts by weight: 0.15-0.25 part of mud red soil, 0.1-0.2 part of ceramic waste, 0.05-0.15 part of waste gypsum, 0.1-0.15 part of adhesive and 0.1-0.15 part of water, wherein the ceramic waste and the waste gypsum are ground into 300-500 meshes:
the baking-free process comprises the following specific steps:
s1: weighing mud laterite, ceramic waste, waste gypsum, a binder and water according to the weight, and mixing and stirring the mud laterite, the ceramic waste, the waste gypsum, the binder and the water by using mixing equipment to obtain a mixture;
s2: filling the mixture into a raw material pipe of a 3D printer, and then spraying the mixture on a processing table for shaping through a glue spraying opening of the 3D printer to obtain a semi-finished product;
s3: spraying paint on the surface of the semi-finished product by a spray gun, and then carrying out air drying and standing for 6-12h to obtain a finished product;
the spray painting temperature of the spray gun is 70-90 ℃.
A preferred technical scheme is as follows: the adhesive is prepared by mixing 0.3-0.4 part of cement, 0.2-0.3 part of rosin resin and 0.3-0.4 part of retarder by weight.
A preferred technical scheme is as follows: the retarder is prepared by mixing high-concentration curing liquid, caustic soda flakes, latex, SLS needle-shaped multi-effect active agent and high-purity water, wherein the high-concentration curing liquid contains 18-30 parts by weight, the caustic soda flakes contain 0.1-1.2 parts by weight, the latex contains 0.1-0.3 part by weight, the SLS needle-shaped multi-effect active agent contains 0.1-1.2 parts by weight, and the high-purity water contains 68-80 parts by weight.
A preferred technical scheme is as follows: the high-concentration solidified liquid is prepared by mixing 10 parts by weight of caustic soda, 15 parts by weight of sulfur powder, 60 parts by weight of purified water and 15 parts by weight of brown sugar.
A preferred technical scheme is as follows: the production process of the mortar additive comprises the following steps:
weighing the highly concentrated solidified solution, the caustic soda flakes, the latex, the SLS needle-like multi-effect active agent and the highly purified water according to the weight, filling the highly purified water into a large plastic container, extracting a small amount of water, placing the water into a small plastic container, and then adding the caustic soda flakes, wherein the ratio of the caustic soda flakes to the highly purified water is 1: stirring for 3-5 minutes to dilute and dissolve the caustic soda flakes, adding the solution in the small plastic container into high-purity water in the large plastic container, stirring for 5-10 minutes, adding the latex, stirring for 5-10 minutes, adding the SLS needle-like multi-effect activator, stirring for 5-10 minutes, adding the high-concentration solidified liquid, stirring for 5 minutes, standing for 30 minutes, and subpackaging to obtain the product.
A3D printer comprises a frame body, a cover plate, a screw rod transmission mechanism, an air cylinder and a raw material pipe, wherein the screw rod transmission mechanism is arranged on the frame body, the cover plate is arranged above the screw rod transmission mechanism in a covering mode, and an output shaft of the air cylinder is inserted into the raw material pipe; the screw rod transmission mechanism is movably provided with a first motor and a printing head for driving the first motor to move through screw rod transmission, and the first motor is communicated with the raw material pipe.
A preferred technical scheme is as follows: the raw material pipe comprises a pipe body, a sealing cover and a stirring assembly, the sealing cover is sleeved at the upper end of the pipe body, the stirring assembly is arranged in the pipe body in a plugged mode and is connected with an output shaft of the air cylinder, and the stirring assembly is connected with the pipe body in a piston mode.
A preferred technical scheme is as follows: the outer side of the pipe body is provided with a clamping groove, the lower end edge of the inner side of the sealing cover is provided with a corresponding clamping block, and when the sealing cover is sleeved on the pipe body, the clamping block is embedded into the clamping groove; the clamping groove is of a J-shaped structure.
A preferred technical scheme is as follows: the sealing structure is characterized in that an outwards-protruding portion is arranged at the upper end of the inner side of the sealing cover, a rubber ring is arranged on the lower edge of the protruding portion, a gap is formed between the protruding portion and the inner end face of the sealing cover, the outer diameter of the rubber ring is larger than the inner diameter of the pipe body, when the sealing cover is sleeved on the pipe body, the pipe body is embedded into the gap, and the rubber ring and the pipe body are in interference fit.
A preferred technical scheme is as follows: the stirring assembly comprises a piston plate, a second motor, a stirring blade and a limiting piece, wherein the limiting piece is arranged on the piston plate, the stirring blade is arranged in the limiting piece, the second motor is arranged outside the piston plate and is connected with an output shaft of the air cylinder, and the output shaft of the second motor penetrates through the piston plate and is connected with the stirring blade; the height of the limiting piece is higher than that of the stirring blade.
Compared with the background technology, the technical scheme has the following advantages:
the 3D printer can keep the mixture fluid and prolong the setting time of the mixture through the rosin resin and the retarder, and meanwhile, the 3D printer can keep the mixture flowing in the pipe body through the equipment structure in the stirring assembly, so that the mixture is prevented from being set; and the convenience of the disassembly and the installation of the sealing cover is improved through the matching of the clamping block and the clamping groove.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1-2 are schematic diagrams of the overall structure of the present invention.
Fig. 3 is a schematic view of the raw material pipe 5.
Fig. 4 is a half-sectional view of the raw material pipe 5.
Fig. 5 is an enlarged schematic view of a in fig. 4.
Fig. 6 is a schematic view of the stirring assembly 53.
Fig. 7 is a schematic view of the print head 32.
In the figure: the device comprises a frame body 1, a cover plate 2, a screw rod transmission mechanism 3, a first motor 31, a printing head 32, a cylinder 4, a raw material pipe 5, a pipe body 51, a clamping groove 511, a sealing cover 52, a protruding part 521, a rubber ring 522, a clamping block 523, a stirring assembly 53, a piston plate 531, a second motor 532, a stirring blade 533, a limiting part 534, a screw rod slider (321), a material spraying pipe 322, a spiral blade rod 323 and a material spraying pipe communicating hole 3221.
Detailed Description
Example one
The embodiment provides a 3D printing waste baking-free process which comprises the following materials in parts by weight: 0.15-0.25 part of mud red soil, 0.1-0.2 part of ceramic waste, 0.05-0.15 part of waste gypsum, 0.1-0.15 part of adhesive and 0.1-0.15 part of water, wherein the ceramic waste and the waste gypsum are ground into 300-500 meshes:
the baking-free process comprises the following specific steps:
s1: weighing mud red clay, ceramic waste, waste gypsum, binder and water according to weight, and mixing and stirring the mud red clay, the ceramic waste, the waste gypsum, the binder and the water by using mixing equipment to obtain a mixture;
s2: filling the mixture into a raw material pipe of a 3D printer, and then spraying the mixture on a processing table for shaping through a glue spraying opening of the 3D printer to obtain a semi-finished product;
s3: spraying paint on the surface of the semi-finished product by a spray gun, and then carrying out air drying and standing for 6-12 hours to obtain a finished product;
the spray painting temperature of the spray gun is 70-90 ℃.
A preferred technical scheme is as follows: the adhesive is prepared by mixing 0.3-0.4 part of cement, 0.2-0.3 part of rosin resin and 0.3-0.4 part of retarder by weight.
A preferred technical scheme is as follows: the retarder is prepared by mixing high-concentration curing liquid, caustic soda flakes, latex, SLS needle-shaped multi-effect active agent and high-purity water, wherein the high-concentration curing liquid contains 18-30 parts by weight, the caustic soda flakes contain 0.1-1.2 parts by weight, the latex contains 0.1-0.3 part by weight, the SLS needle-shaped multi-effect active agent contains 0.1-1.2 parts by weight, and the high-purity water contains 68-80 parts by weight.
A preferred technical scheme is as follows: the high-concentration solidified liquid is prepared by mixing 10 parts by weight of caustic soda, 15 parts by weight of sulfur powder, 60 parts by weight of purified water and 15 parts by weight of brown sugar.
A preferred technical scheme is as follows: the production process of the mortar additive comprises the following steps: weighing the highly concentrated solidified solution, the caustic soda flakes, the latex, the SLS needle-like multi-effect active agent and the highly purified water according to the weight, filling the highly purified water into a large plastic container, extracting a small amount of water, placing the water into a small plastic container, and then adding the caustic soda flakes, wherein the ratio of the caustic soda flakes to the highly purified water is 1: stirring for 3-5 minutes to dilute and dissolve the caustic soda flakes, adding the solution in the small plastic container into high-purity water in the large plastic container, stirring for 5-10 minutes, adding the latex, stirring for 5-10 minutes, adding the SLS needle-like multi-effect activator, stirring for 5-10 minutes, adding the high-concentration solidified liquid, stirring for 5 minutes, standing for 30 minutes, and subpackaging to obtain the product.
Example two
As shown in fig. 1 to 6, the embodiment provides a 3D printer, which includes a frame body 1, a cover plate 2, a screw rod transmission mechanism 3, a cylinder 4, and a raw material pipe 5, wherein the screw rod transmission mechanism 3 is disposed on the frame body 1, the cover plate 2 is covered over the screw rod transmission mechanism 3, and an output shaft of the cylinder 4 is inserted into the raw material pipe 5; when the 3D printer is used, the mixture in the first embodiment is poured into the raw material pipe 5, the raw material pipe 5 is pressurized through the air cylinder 4, the fluid mixture flows into the first motor 31 along the communicating pipe, the mixture is shaped on the surface of the frame body 1 through the first motor 31, after the 3D printing operation is completed, the printed semi-finished product can be directly placed in a cool and dry place to directly stand for several hours, and the retarder and cement molecules in the mixture are gradually solidified after being stabilized, so that the finished product is formed without a firing mode.
The position of the first motor 31 on the lead screw transmission mechanism 3, which is adjusted by the print head 32 through lead screw transmission, belongs to the detailed common knowledge in the field, and therefore further description thereof is omitted, and the structure not described in this embodiment may be a device in the prior art, or a device described in patent No. CN210423621U entitled lead screw transmission mechanism of 3D printer.
Further, the raw material pipe 5 comprises a pipe body 51, a sealing cover 52 and a stirring assembly 53, the sealing cover 52 is sleeved at the upper end of the pipe body 51, the stirring assembly 53 is plugged in the pipe body 51 and connected with an output shaft of the cylinder 4, the stirring assembly 53 is connected with the pipe body 51 in a piston manner, the sealing cover 52 is fixed in a sleeving manner, the sealing cover 52 can be conveniently detached, the communicating pipe is communicated with the sealing cover 52, and when the sealing cover 52 is detached from the pipe body 51, the sealing cover can be hung in the air and cannot fall off through the connection of the communicating pipe;
meanwhile, in order to increase the fixing property of the sealing cover 52 and avoid the sealing cover 52 from falling off the pipe body 51 when being installed, the outer side of the pipe body 51 is provided with a clamping groove 511, the lower end edge of the inner side of the sealing cover 52 is provided with a corresponding clamping block 523, and when the sealing cover 52 is sleeved on the pipe body 51, the clamping block 523 is embedded into the clamping groove 511; the clamping groove 511 is of a J-shaped structure, when the clamping groove 511 is used, the clamping block 523 can be vertically inserted into the clamping groove 511 matched with the clamping block 523, after the clamping block 523 abuts against the lower edge of the clamping groove 511, the sealing cover 52 is rotated towards the bending end direction of the clamping groove 511, then the sealing cover 52 is lifted upwards, the clamping block 523 slides into the tail end of the clamping groove 511, and at the moment, the sealing cover 52 can be fixed, because the sealing cover 52 can be lifted upwards when the output shaft is controlled by the air cylinder 4 to extrude the space in the pipe body 51, the clamping block 523 can continuously apply force to the tail end of the clamping groove 511, the sealing cover 52 cannot be separated from the pipe body 51, when the sealing cover 52 needs to be detached, only the air cylinder 4 needs to be closed, the sealing cover 52 is pressed downwards and then the sealing cover 52 is rotated reversely, and then the sealing cover 52 is lifted upwards, so that the detaching speed of the sealing cover 52 can be effectively and conveniently improved.
In order to ensure the air tightness between the sealing cover 52 and the tube body 51 after being pulled out and inserted for a long time, the upper end of the inner side of the sealing cover 52 is provided with a convex part 521 which protrudes outwards, the lower end edge of the convex part 521 is provided with a rubber ring 522, a gap is arranged between the convex part 521 and the inner end surface of the sealing cover 52, the outer diameter of the rubber ring 522 is larger than the inner diameter of the tube body 51, when the sealing cover 52 is sleeved on the tube body 51, the tube body 51 is embedded into the gap and the rubber ring 522 is in interference fit with the tube body 51, when the sealing cover 52 is installed, the tube body 51 can be inserted into the gap between the convex part 521 and the inner side of the sealing cover 52, when the sealing cover 52 is fixed, the air tightness between the sealing cover 52 and the tube body 51 can be ensured by clamping the sealing cover 52 and the convex part 521, and when the output shaft of the air cylinder 4 presses the stirring assembly 53, the air pressure in the tube body 51 and the sealing cover 52 is increased, so that the convex part 521 deforms, and the attaching performance with the tube body 51 is improved;
and rubber ring 522 itself has stronger deformability, and rubber ring 522 is interference fit with body 51 simultaneously, consequently when imbedding body 51 in the clearance, can form the extrusion to rubber ring 522 and make it produce deformation, can effectually guarantee the gas tightness of body 51 and sealed lid 52.
In order to ensure the fluidity of the mixture in the pipe 51 and avoid the molecules of the mixture from coagulating after stabilizing in the pipe 51, the stirring assembly 53 includes a piston plate 531, a second motor 532, a stirring blade 533, a limiting member 534, the limiting member 534 is disposed on the piston plate 531, the stirring blade 533 is disposed in the limiting member 534, the second motor 532 is disposed outside the piston plate 531 and connected to the output shaft of the cylinder 4, and the output shaft of the second motor 532 penetrates through the piston plate 531 and then connected to the stirring blade 533; the height of the limiting member 534 is higher than that of the stirring blade 533, so that the output shaft of the cylinder 4 is not directly connected to the piston plate 531, and when the output shaft of the cylinder 4 extends by being connected to the second motor 532, the space and the mixture in the tube 51 can be extruded by the way that the second motor 532 pushes the piston plate 531, and then the mixture is injected into the printing head 32 along the communicating tube;
since the output shaft of the second motor 532 penetrates through the piston plate 531 and then is connected with the stirring blade 533, when in use, the second motor 532 can be electrified to ensure that the mixture in the pipe body 51 keeps flowing continuously after the output shaft of the second motor 532 rotates with the east stirring blade 533, and molecules are not solidified in the pipe body 51 after being stabilized, so that the mixture can be stored for a long time;
since the height of the stopper 534 is higher than that of the stirring blade 533, when the piston plate 531 is pushed upward, the stopper 534 will preferentially abut against the projection 521, and the stirring blade 533 can be prevented from colliding with the projection 521 when the piston plate 531 is pushed upward.
EXAMPLE III
The printing head 32 in this embodiment includes a screw rod slider 321, a material spraying pipe 322, and a spiral blade rod 323, the material spraying pipe 322 is installed on the screw rod transmission mechanism 3 through the screw rod slider 321, the spiral blade rod 323 is installed in the material spraying pipe 322, a third motor is installed in the screw rod slider 321, an output shaft of the third motor is connected with the spiral blade rod 323, a material spraying pipe communication hole 3221 is formed in a side surface of the material spraying pipe 322, and the raw material pipe 5 is inserted into the material spraying pipe communication hole 3221 through a communication pipe to communicate with the interior of the material spraying pipe 322, so that the raw material in the communication pipe 5 can be sent into the material spraying pipe 322;
therefore, when the mixture is sprayed onto the processing table by the printing head 32 in use, the spiral blade rod 323 can be driven to rotate by the third motor in the screw rod sliding block 321, so as to extrude the raw material downwards, and the raw material can be more compact after being sprayed.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents.
Claims (10)
- The 3D printing waste material baking-free process is characterized by comprising the following steps: comprises the following materials in parts by weight: 0.15-0.25 part of mud red soil, 0.1-0.2 part of ceramic waste, 0.05-0.15 part of waste gypsum, 0.1-0.15 part of adhesive and 0.1-0.15 part of water, wherein the ceramic waste and the waste gypsum are ground into 300-500 meshes:the baking-free process comprises the following specific steps:s1: weighing mud red clay, ceramic waste, waste gypsum, binder and water according to weight, and mixing and stirring the mud red clay, the ceramic waste, the waste gypsum, the binder and the water by using mixing equipment to obtain a mixture;s2: filling the mixture into a raw material pipe of a 3D printer, and then spraying the mixture on a processing table for shaping through a glue spraying opening of the 3D printer to obtain a semi-finished product;s3: spraying paint on the surface of the semi-finished product by a spray gun, and then carrying out air drying and standing for 6-12 hours to obtain a finished product;the spray painting temperature of the spray gun is 70-90 ℃.
- 2. The 3D printing waste burn-free process according to claim 1, wherein: the adhesive is prepared by mixing 0.3-0.4 part by weight of cement, 0.2-0.3 part by weight of rosin resin and 0.3-0.4 part by weight of retarder.
- 3. The 3D printing waste burn-free process according to claim 2, wherein: the retarder is prepared by mixing high-concentration curing liquid, caustic soda flakes, latex, SLS needle-shaped multi-effect active agent and high-purity water, wherein the high-concentration curing liquid contains 18-30 parts by weight, the caustic soda flakes contain 0.1-1.2 parts by weight, the latex contains 0.1-0.3 part by weight, the SLS needle-shaped multi-effect active agent contains 0.1-1.2 parts by weight, and the high-purity water contains 68-80 parts by weight.
- 4. The 3D printing waste burn-free process according to claim 3, wherein: the high-concentration solidified liquid is prepared by mixing 10 parts by weight of caustic soda, 15 parts by weight of sulfur powder, 60 parts by weight of purified water and 15 parts by weight of brown sugar.
- 5. The 3D printing waste baking-free process according to claim 4, wherein: the production process of the mortar additive comprises the following steps:weighing the highly concentrated curing solution, the caustic soda flakes, the latex, the SLS needle-like multi-effect activator and the high-purity purified water according to the weight, filling the high-purity purified water into a large plastic container, extracting a small amount of water, placing the water into a small plastic container, and adding the caustic soda flakes, wherein the ratio of the caustic soda flakes to the high-purity purified water is 1: stirring for 3-5 minutes to dilute and dissolve the caustic soda flakes, adding the solution in the small plastic container into high-purity water in the large plastic container, stirring for 5-10 minutes, adding the latex, stirring for 5-10 minutes, adding the SLS needle-like multi-effect activator, stirring for 5-10 minutes, adding the high-concentration solidified liquid, stirring for 5 minutes, standing for 30 minutes, and subpackaging to obtain the product.
- 6. The utility model provides a 3D printer which characterized in that: the screw rod transmission mechanism is characterized by comprising a frame body (1), a cover plate (2), a screw rod transmission mechanism (3), an air cylinder (4) and a raw material pipe (5), wherein the screw rod transmission mechanism (3) is arranged on the frame body (1), the cover plate (2) is arranged above the screw rod transmission mechanism (3) in a covering mode, and an output shaft of the air cylinder (4) is inserted into the raw material pipe (5);the screw rod transmission mechanism (3) is movably provided with a first motor (31) and a printing head (32) for driving the first motor (31) to move through screw rod transmission, and the first motor (31) is communicated with the raw material pipe (5).
- 7. The 3D printer of claim 6, wherein: raw material pipe (5) are including body (51), sealed lid (52), stirring subassembly (53), sealed lid (52) cover is established in body (51) upper end, stirring subassembly (53) stopper locate in body (51) and with the output shaft of cylinder (4) link to each other, stirring subassembly (53) are piston connection with body (51).
- 8. The 3D printer of claim 7, wherein: a clamping groove (511) is formed in the outer side of the pipe body (51), a clamping block (523) corresponding to the lower end edge of the inner side of the sealing cover (52) is arranged on the lower end edge of the inner side of the sealing cover, and when the sealing cover (52) is sleeved on the pipe body (51), the clamping block (523) is embedded into the clamping groove (511);the clamping groove (511) is of a J-shaped structure.
- 9. The 3D printer of claim 8, wherein: sealed lid (52) inboard upper end has an outside bellied bellying (521), bellying (521) lower extreme border is equipped with a rubber ring (522), have the clearance between bellying (521) and the interior terminal surface of sealed lid (52), the external diameter of rubber ring (522) is greater than the internal diameter of body (51), when establishing sealed lid (52) cover on body (51), body (51) embedding in the clearance and rubber ring (522) are interference fit with body (51).
- 10. A 3D printer according to claim 9, characterized in that: the stirring assembly (53) comprises a piston plate (531), a second motor (532), a stirring blade (533) and a limiting piece (534), the limiting piece (534) is arranged on the piston plate (531), the stirring blade (533) is arranged in the limiting piece (534), the second motor (532) is arranged outside the piston plate (531) and is connected with an output shaft of the cylinder (4), and an output shaft of the second motor (532) penetrates through the piston plate (531) and is connected with the stirring blade (533);the height of the limiting piece (534) is higher than that of the stirring blade (533).
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