High-performance anti-deformation 3D printing material and preparation method thereof
阅读说明：本技术 一种高性能抗形变3d打印材料及其制备方法 (High-performance anti-deformation 3D printing material and preparation method thereof ) 是由 聂健良 董先明 刘功云 谷文亮 周武艺 肖海军 于 2020-05-28 设计创作，主要内容包括：本发明公开了一种高性能抗形变3D打印材料,包括以下重量份原料1份丙烯酸乳液和20～200无机化合物粉末；将丙烯酸乳液和无机化合物粉末通过混合装置进行搅拌混合,混合均匀的原料进入到干燥装置内,首先经过第一导料管落入到转筒内,离心干燥的原料进入到运输装置内,首先离心干燥的原料落入到传送带上,并经过传送带运输,在对原料进行运输中,对传送带上的原料进行加热,使得残留的母液从冷凝器连接管进入到冷凝器内,运输到运输箱顶部的原料落入到粉碎装置内；通过齿轮和传动轴带动两组的粉碎辊进行转动,对原料进行粉碎,便得到3D打印材料；本发明具有无机化合物的高结构强度抗形变的作用和有机聚合物的高柔韧性能,制备工艺效率高的优点。(The invention discloses a high-performance anti-deformation 3D printing material which comprises the following raw materials, by weight, 1 part of acrylic emulsion and 20-200 parts of inorganic compound powder; stirring and mixing acrylic emulsion and inorganic compound powder through a mixing device, feeding the uniformly mixed raw materials into a drying device, firstly dropping the raw materials into a rotary drum through a first material guide pipe, feeding the centrifugally dried raw materials into a conveying device, firstly dropping the centrifugally dried raw materials onto a conveying belt, conveying the raw materials through the conveying belt, heating the raw materials on the conveying belt during conveying the raw materials, so that the residual mother liquor enters a condenser from a condenser connecting pipe, and the raw materials conveyed to the top of a conveying box fall into a crushing device; the two groups of crushing rollers are driven to rotate through the gears and the transmission shafts, and the raw materials are crushed to obtain a 3D printing material; the invention has the advantages of high structural strength and deformation resistance of inorganic compounds, high flexibility of organic polymers and high preparation process efficiency.)
1. The utility model provides a high performance anti deformation 3D printing material which characterized in that: the acrylic emulsion comprises the following raw materials, by weight, 1 part of acrylic emulsion and 20-200 parts of inorganic compound powder;
the acrylic emulsion is composed of, by weight, 40-90 parts of a hard monomer, 10-60 parts of a soft monomer, 5-10 parts of a carboxyl-containing monomer, 1-3 parts of an emulsifier and 0.2-1 part of an initiator.
2. The preparation method of the high-performance deformation-resistant 3D printing material as claimed in claim 1, characterized by comprising the following steps:
s1, stirring and mixing acrylic emulsion and inorganic compound powder through a mixing device (1), firstly adding the acrylic emulsion and the inorganic compound powder into a mixing tank (6) through a feeding funnel, then starting a first motor (5) to work to drive a stirring shaft (10) to rotate, wherein the stirring shaft (10) rotates to drive a stirring paddle (11) to rotate, so that raw materials in the middle of the mixing tank (6) are mixed, meanwhile, the stirring shaft (10) rotates to drive a driving bevel gear (13) to rotate, the driving bevel gear (13) drives a driven bevel gear (15) to rotate through two groups of transmission bevel gears (14), the driven bevel gear (15) drives a stirring frame (9) on a connecting rod (8) to rotate through a sleeve (7), and the stirring frame (9) is used for mixing the raw materials on the inner edge of the mixing tank (6);
s2, the uniformly mixed raw materials enter a drying device (2), firstly fall into a rotary drum (19) through a first material guide pipe (16), and meanwhile, a second motor (20) is started to work, the rotary drum (19) is driven to rotate through the transmission action among a driving belt pulley (21), a belt (22) and a driven belt pulley (23), the raw materials passing through the rotary drum (19) are centrifugally dried, and mother liquor flows out from a mother liquor outlet on a pipe body (18);
s3, conveying the centrifugally dried raw materials into a conveying device (3), firstly, conveying the centrifugally dried raw materials onto a conveying belt (29) through the conveying belt (29), heating a heating box through a heat source inlet pipe (32) and a heat source outlet pipe (27) during conveying the raw materials, so that the raw materials on the conveying belt (29) are heated, the residual mother liquor enters a condenser from a condenser connecting pipe (25), and the raw materials conveyed to the top of a conveying box (24) fall into a crushing device (4); through starting up fourth motor (35), drive two sets of crushing roller (38) through gear (36) and transmission shaft (37) and rotate, smash the raw materials to discharge from discharging pipe (33) the raw materials after smashing, just obtain 3D printing material.
3. The preparation method of the high-performance deformation-resistant 3D printing material according to claim 2, wherein the mixing device (1) is connected with the drying device (2) through a first material guiding pipe (16), the drying device (2) is connected with the feeding end of the conveying device (3) through a second material guiding pipe (17), and the discharging end of the conveying device (3) is connected with the crushing device (4).
4. The preparation method of the high-performance anti-deformation 3D printing material according to claim 3, wherein the mixing device (1) comprises a first motor (5), a mixing tank (6), a sleeve (7), a connecting rod (8), a stirring frame (9), a stirring shaft (10), a stirring paddle (11) and a transmission case (12), a feeding funnel is arranged on the top surface of the mixing tank (6), the first motor (5) is arranged in the middle of the top surface of the mixing tank (6), the output end of the first motor (5) is connected with the stirring shaft (10), the other end of the stirring shaft (10) extends into the mixing tank (6) and is rotatably connected with the mixing tank (6), the transmission case (12) is arranged on the top surface of the interior of the mixing tank (6), and a transmission mechanism is arranged in the transmission case (12);
the stirring shaft (10) penetrates through the transmission box (12) and is rotationally connected with the transmission box (12), the transmission mechanism comprises driving bevel gears (13), transmission bevel gears (14) and driven bevel gears (15), the outer walls of the stirring shaft (10) are respectively sleeved with the driving bevel gears (13) and the driven bevel gears (15), the driving bevel gears (13) are positioned right above the driven bevel gears (15), the transmission bevel gears (14) are arranged between the driving bevel gears (13), the transmission bevel gears (14) are symmetrically arranged in two groups, the two groups of transmission bevel gears (14) are rotationally arranged on the inner wall of the transmission box (12), and the transmission bevel gears (14) are respectively meshed with the driving bevel gears (13) and the driven bevel gears (15);
the stirring device is characterized in that a stirring paddle (11) is arranged on the outer wall of the bottom of a stirring shaft (10), a sleeve (7) is arranged at the bottom of a driven bevel gear (15), the sleeve (7) penetrates through the bottom surface of a transmission box (12) and is rotatably connected with the transmission box (12), the sleeve (7) is sleeved on the outer wall of the stirring shaft (10) and is rotatably connected with the stirring shaft (10), connecting rods (8) are horizontally arranged on two sides of the outer wall of the sleeve (7) respectively, and a stirring frame (9) is arranged at one end, far away from the sleeve (7), of each connecting rod (.
5. The preparation method of the high-performance deformation-resistant 3D printing material is characterized in that the stirring frame (9) is a directional frame, the bottom of the mixing tank (6) is provided with a discharge port and is connected with a feeding pipe of a first material guiding pipe (16), and the first material guiding pipe (16) is connected with the drying device (2);
drying device (2) are including body (18), rotary drum (19), second motor (20), driving pulley (21), belt (22), driven pulley (23), the cover is equipped with body (18) on the outer wall of rotary drum (19), and rotate with body (18) and be connected, the feed end of rotary drum (19) rotates with the discharge end of first baffle pipe (16) to be connected, and the cover is equipped with driven pulley (23) on the outer wall of rotary drum (19) feed end, be provided with second motor (20) on the outer wall of body (18), the output and the driving pulley (21) of second motor (20) are connected, driving pulley (21) are connected with driven pulley (23) transmission through belt (22), the discharge end of rotary drum (19) rotates with the feed end of second baffle pipe (17) to be connected.
6. The preparation method of the high-performance deformation-resistant 3D printing material according to claim 5, characterized in that multiple groups of filtering holes are uniformly formed in the side wall of the rotary drum (19), the pipe body (18) and the rotary drum (19) are obliquely arranged, and the bottom of the pipe body (18) close to the conveying device (3) is provided with a mother liquor discharge port.
7. The preparation method of the high-performance anti-deformation 3D printing material according to claim 1, wherein the discharge end of the second material guiding pipe (17) is positioned above the feeding end of the transportation device (3), the transportation device (3) comprises a transportation box (24), a condenser connecting pipe (25), a third motor (26), a heat source outlet pipe (27), a baffle plate (28), a conveyor belt (29), a driving transmission shaft (30), a driven transmission shaft (31), a heat source inlet pipe (32) and a discharge pipe (33), one side of the transportation box (24) is horizontally arranged, the other side of the transportation box (24) is obliquely arranged, a feeding hole is formed in the top surface of the horizontal part of the transportation box (24), the third motor (26) is arranged on the outer wall of the horizontal part of the transportation box (24), the output end of the third motor (26) is connected with the driving transmission shaft (30), one end of the inclined part of the transportation box (24) is provided with the, the driving transmission shaft (30) is connected with the driven transmission shaft (31) through a transmission belt (29), and a plurality of groups of baffles (28) are arranged on the transmission belt (29) at equal intervals.
8. The method for preparing the high-performance deformation-resistant 3D printing material according to claim 1, wherein a plurality of groups of condenser connecting pipes (25) are arranged at equal intervals on the inclined portion of the transport box (24) and connected with the condensers, a heating box is arranged on the inner wall of the transport box (24), a heat source outlet pipe (27) is arranged on one side of the horizontal portion of the transport device (3), a heat source inlet pipe (32) is arranged on the other side of the inclined portion of the transport device (3), the heat source outlet pipe (27) and the heat source inlet pipe (32) are communicated with the heating box, the heating box is arranged between the conveyor belts (29), and the shape of the heating box is matched with the shape of the transport box (24).
9. The preparation method of the high-performance anti-deformation 3D printing material according to claim 1, characterized in that a discharge port is arranged at the bottom of the inclined part of the transportation box (24) and connected with the crushing device (4), the crushing device (4) comprises a crushing box (34), a fourth motor (35), gears (36), transmission shafts (37) and crushing rollers (38), the crushing box (34) is arranged on the support, two groups of crushing rollers (38) are arranged in the crushing box (34) side by side and are respectively connected with the two groups of crushing rollers (38) in a rotating manner, the two groups of crushing rollers (38) are connected with the transmission shafts (37), the gears (36) are sleeved on the two groups of transmission shafts (37), the two groups of gears (36) are connected in an engaged manner, the one group of transmission shafts (37) is connected with the output end of the fourth motor (35), and the fourth motor (35) is arranged on the support, the bottom of the crushing box (34) is provided with a discharge pipe (33).
Technical Field
The invention belongs to the technical field of 3D printing, relates to a 3D printing material and a preparation method thereof, and particularly relates to a high-performance anti-deformation 3D printing material and a preparation method thereof.
Background
The 3D printing technique is based on digital model files, and produces an entity by layer-by-layer printing using bondable materials such as powdered metals or plastics.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, gypsum, photosensitive resin and plastic raw materials are mainly used as 3D printing materials at present, and have the defects of poor printing precision, insufficient strength of solid finished products, slow printing speed and the like, so that the modern industrial application is difficult to meet; meanwhile, in the preparation and production process of the 3D printing material, when the 3D printing raw material is stirred and mixed, the raw material in the mixing tank is usually mixed by adopting a mode that a group of stirring shafts are provided with stirring blades, but the stirring mode has the defects of low stirring efficiency, long stirring time, full mixing of the raw material, great reduction of the mixing efficiency of the 3D printing raw material and prolongation of the preparation period of the 3D printing raw material; and the subsequent production period is longer, the process is complex, and the preparation efficiency of the 3D printing raw material is lower, so that the high-performance anti-deformation 3D printing material and the preparation method thereof are provided.
The purpose of the invention can be realized by the following technical scheme:
a high-performance anti-deformation 3D printing material comprises the following raw materials, by weight, 1 part of acrylic emulsion and 20-200 parts of inorganic compound powder;
the acrylic emulsion is composed of, by weight, 40-90 parts of a hard monomer, 10-60 parts of a soft monomer, 5-10 parts of a carboxyl-containing monomer, 1-3 parts of an emulsifier and 0.2-1 part of an initiator.
A preparation method of a high-performance anti-deformation 3D printing material comprises the following steps:
s1, stirring and mixing acrylic emulsion and inorganic compound powder through a mixing device, firstly adding the acrylic emulsion and the inorganic compound powder into a mixing tank through a feeding funnel, then starting a first motor to work to drive a stirring shaft to rotate, wherein the stirring shaft rotates to drive a stirring paddle to rotate, so that raw materials in the middle of the mixing tank are mixed, meanwhile, the stirring shaft rotates to drive a driving bevel gear to rotate, the driving bevel gear drives driven bevel gears to rotate through two groups of transmission bevel gears, and the driven bevel gears drive a stirring frame on a connecting rod to rotate through a sleeve, so that the stirring frame mixes the raw materials at the inner edge of the mixing tank;
s2, enabling the uniformly mixed raw materials to enter a drying device, firstly falling into a rotary drum through a first material guide pipe, simultaneously starting a second motor to work, driving the rotary drum to rotate through the transmission action among a driving belt pulley, a belt and a driven belt pulley, carrying out centrifugal drying on the raw materials passing through the rotary drum, and enabling the mother liquor to flow out of a mother liquor outlet on a pipe body;
s3, conveying the centrifugally dried raw materials into a conveying device, firstly, dropping the centrifugally dried raw materials onto a conveying belt, conveying the raw materials by the conveying belt, heating a heating box through a heat source inlet pipe and a heat source outlet pipe in the process of conveying the raw materials, so that the raw materials on the conveying belt are heated, the residual mother liquor enters a condenser from a condenser connecting pipe, and the raw materials conveyed to the top of the conveying box fall into a crushing device; through starting the fourth motor, drive two sets of crushing rollers through gear and transmission shaft and rotate, smash the raw materials to discharge from the discharging pipe for the raw materials after smashing, just obtain 3D printing material.
Preferably, the mixing device is connected with the drying device through a first material guide pipe, the drying device is connected with the feeding end of the conveying device through a second material guide pipe, and the discharging end of the conveying device is connected with the crushing device.
Preferably, the mixing device comprises a first motor, a mixing tank, a rotary drum, a connecting rod, a mixing frame, a mixing shaft, a mixing paddle and a transmission case, wherein a feeding funnel is arranged on the top surface of the mixing tank, the first motor is arranged in the middle of the top surface of the mixing tank, the output end of the first motor is connected with the mixing shaft, the other end of the mixing shaft extends into the mixing tank and is rotatably connected with the mixing tank, the transmission case is arranged on the top surface of the interior of the mixing tank, and a transmission mechanism is arranged in the transmission case;
the stirring shaft penetrates through the transmission box and is in rotating connection with the transmission box, the transmission mechanism comprises a driving bevel gear, a transmission bevel gear and a driven bevel gear, the driving bevel gear and the driven bevel gear are respectively sleeved on the outer wall of the stirring shaft, the driving bevel gear is positioned right above the driven bevel gear, the transmission bevel gears are arranged between the driving bevel gears, the transmission bevel gears are symmetrically arranged in two groups, the two groups of transmission bevel gears are rotatably installed on the inner wall of the transmission box, and the transmission bevel gears are respectively in meshing connection with the driving bevel gear and the driven bevel gear;
the stirring paddle is arranged on the outer wall of the bottom of the stirring shaft, the bottom of the driven bevel gear is provided with a sleeve, the sleeve penetrates through the bottom surface of the transmission case and is rotatably connected with the transmission case, the sleeve is sleeved on the outer wall of the stirring shaft and is rotatably connected with the stirring shaft, the two sides of the outer wall of the sleeve are respectively and horizontally provided with a connecting rod, and one end, away from the sleeve, of the connecting rod is provided with a stirring frame.
Preferably, the stirring frame is a direction frame, a discharge port is arranged at the bottom of the mixing tank and is connected with a feeding pipe of a first material guide pipe, and the first material guide pipe is connected with the drying device;
drying device includes the body, the sleeve pipe, the second motor, drive pulley, the belt, driven pulley, the cover is equipped with the body on the outer wall of rotary drum, and rotate with the body and be connected, the feed end of rotary drum rotates with the discharge end of first passage to be connected, and the cover is equipped with driven pulley on the outer wall of rotary drum feed end, be provided with the second motor on the outer wall of body, the output and the drive pulley connection of second motor, drive pulley passes through the belt and is connected with driven pulley transmission, the discharge end of rotary drum rotates with the feed end of second passage to be connected.
Preferably, a plurality of groups of filtering holes are uniformly formed in the side wall of the rotary drum, the pipe body and the rotary drum are obliquely arranged, and the bottom of the pipe body, which is close to the conveying device, is provided with a mother liquid outlet.
Preferably, the discharge end of second passage is located the top of conveyer material loading end, conveyer includes the transport case, the condenser connecting pipe, the third motor, the heat source exit tube, the baffle, the conveyer belt, the initiative conveying axle, driven conveying axle, the heat source advances the pipe, the discharging pipe, a side level of transport case sets up, opposite side slope sets up, be provided with the feed inlet on the horizontal part top surface of transport case, be provided with the third motor on the outer wall of transport case horizontal part, the output and the initiative conveying hub connection of third motor, the one end of transport case rake is provided with driven conveying axle, the initiative conveying axle passes through the conveyer belt and is connected with driven conveying axle, the equidistant baffle that is provided with the multiunit on the conveyer belt.
Preferably, a plurality of groups of condenser connecting pipes are arranged on the inclined part of the transport box at equal intervals and are connected with the condenser, a heating box is arranged on the inner wall of the transport box, a heat source outlet pipe is arranged on one side of the horizontal part of the transport device, a heat source inlet pipe is arranged on the other side of the inclined part of the transport device, the heat source outlet pipe and the heat source inlet pipe are communicated with the heating box, the heating box is arranged between the conveyor belts, and the shape of the heating box is matched with that of the transport box.
Preferably, the bottom of transport case rake is provided with the discharge gate, and be connected with reducing mechanism, reducing mechanism is including smashing the case, the fourth motor, the gear, the transmission shaft, crushing roller, it sets up on the support to smash the case, it is provided with two sets of crushing rollers side by side in the case to smash, and rotate with two sets of crushing roller respectively and be connected, two sets of crushing roller is connected with the transmission shaft, the cover is equipped with the gear on two sets of transmission shafts, two sets of gear intermeshing connects, a set of transmission shaft is connected with the output of fourth motor, the fourth motor is installed on the support, the bottom of smashing the case is provided with the discharging pipe.
Compared with the prior art, the invention has the beneficial effects that: the 3D printing material prepared from the acrylic emulsion and the inorganic compound powder has the high structural strength and deformation resistance of the inorganic compound and the high flexibility of the organic polymer; the solid finished product printed by the 3D printing material has excellent mechanical strength and mechanical property, and good flexibility, effectively overcomes the defects of the current 3D printing material, and has extremely wide application prospect;
acrylic emulsion and inorganic compound powder are stirred and mixed by a mixing device, the acrylic emulsion and the inorganic compound powder are firstly added into a mixing tank through a charging hopper, then a first motor is started to work to drive a stirring shaft to rotate, the stirring shaft rotates to drive a stirring paddle to rotate, so that raw materials at the middle part in the mixing tank are mixed, simultaneously, the stirring shaft rotates to drive a driving bevel gear to rotate, the driving bevel gear drives a driven bevel gear to rotate through two groups of transmission bevel gears, the driven bevel gear drives a stirring frame on a connecting rod to rotate through a rotary drum, so that the stirring frame mixes the raw materials at the inner edge of the mixing tank, the stirring paddle on the stirring shaft and the stirring frame on the connecting rod rotate oppositely through a transmission mechanism, the stirring paddle on the stirring shaft can stir and mix the raw materials at the middle part in the mixing tank, and the stirring frame on the connecting rod can stir and, the raw materials in the mixing tank can be uniformly mixed and stirred, the mixing and stirring efficiency is greatly improved, and the problems that in the prior art, when 3D printing raw materials are mixed and stirred, the raw materials in the mixing tank are usually mixed by adopting a mode that a group of stirring shafts are provided with stirring blades, and the stirring mode has the defects of low stirring efficiency, long stirring time, full mixing of the raw materials, greatly reduced 3D printing raw material mixing efficiency and prolonged 3D printing raw material preparation period are solved;
the uniformly mixed raw materials enter a drying device, firstly fall into a rotary drum through a first material guide pipe, and simultaneously, a second motor is started to work, the rotary drum is driven to rotate through the transmission action among a driving belt pulley, a belt and a driven belt pulley, the raw materials passing through the rotary drum are centrifugally dried, and mother liquor flows out from a mother liquor outlet on a pipe body;
the method comprises the following steps that centrifugally dried raw materials enter a conveying device, firstly fall onto a conveying belt and are conveyed by the conveying belt, and in the process of conveying the raw materials, a heating box is heated through a heat source inlet pipe and a heat source outlet pipe, so that the raw materials on the conveying belt are heated, residual mother liquor enters a condenser from a condenser connecting pipe, and the raw materials conveyed to the top of a conveying box fall into a crushing device; the fourth motor is started, the two groups of crushing rollers are driven to rotate through the gear and the transmission shaft, the raw materials are crushed, and the crushed raw materials are discharged from the discharge pipe, so that the 3D printing material is obtained; the conveyer belt through setting up plays the effect of transportation to the raw materials, can dry the raw materials through the heating cabinet in the transport case, the efficiency of raw materials stoving has been improved greatly to guarantee the purity of raw materials, and improve the efficiency of 3D printing material preparation simultaneously, this 3D printing material is in the preparation process, the realization is mixed, the drying, effectively combine between transportation and the smashing, thereby improved the efficiency of 3D printing material at preparation technology greatly, shorten preparation technology's cycle.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the whole of the present invention.
Fig. 2 is a schematic three-dimensional structure of the mixing device of the present invention.
Fig. 3 is a schematic structural diagram of the transmission mechanism of the present invention.
Fig. 4 is a schematic structural view of the drying apparatus of the present invention.
Fig. 5 is a schematic perspective view of the transportation device of the present invention.
Fig. 6 is a schematic perspective view of the inside of the transportation device of the present invention.
FIG. 7 is a schematic view showing the connection between the conveyor and the heating chamber according to the present invention.
FIG. 8 is a schematic view of the structure of the crushing apparatus of the present invention.
In the figure: 1. a mixing device; 2. a drying device; 3. a transportation device; 4. a crushing device; 5. a first motor; 6. a mixing tank; 7. a sleeve; 8. a connecting rod; 9. a stirring frame; 10. a stirring shaft; 11. a stirring paddle; 12. a transmission case; 13. a drive bevel gear; 14. a drive bevel gear; 15. a driven bevel gear; 16. a first material guide pipe; 17. a second material guide pipe; 18. a pipe body; 19. a rotating drum; 20. a second motor; 21. a drive pulley; 22. a belt; 23. a driven pulley; 24. a transport case; 25. a condenser connecting pipe; 26. a third motor; 27. a heat source outlet pipe; 28. a baffle plate; 29. a conveyor belt; 30. an active transfer shaft; 31. a driven transfer shaft; 32. a heat source inlet pipe; 33. a discharge pipe; 34. a crushing box; 35. a fourth motor; 36. a gear; 37. a drive shaft; 38. a crushing roller.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, a high-performance anti-deformation 3D printing material and a preparation method thereof include, by weight, 1 part of acrylic emulsion and 20-200 parts of inorganic compound powder;
the acrylic emulsion is composed of, by weight, 40-90 parts of a hard monomer, 10-60 parts of a soft monomer, 5-10 parts of a carboxyl-containing monomer, 1-3 parts of an emulsifier and 0.2-1 part of an initiator.
A preparation method of a high-performance anti-deformation 3D printing material comprises the following steps:
s1, stirring and mixing acrylic emulsion and inorganic compound powder through a mixing device 1, firstly adding the acrylic emulsion and the inorganic compound powder into a mixing tank 6 through a feeding funnel, then starting a first motor 5 to work to drive a stirring shaft 10 to rotate, wherein the stirring shaft 10 rotates to drive a stirring paddle 11 to rotate, so that raw materials in the middle of the mixing tank 6 are mixed, meanwhile, the stirring shaft 10 rotates to drive a driving bevel gear 13 to rotate, the driving bevel gear 13 drives a driven bevel gear 15 to rotate through two groups of transmission bevel gears 14, the driven bevel gear 15 drives a stirring frame 9 on a connecting rod 8 to rotate through a sleeve 7, and the stirring frame 9 mixes the raw materials at the inner edge of the mixing tank 6;
s2, the uniformly mixed raw materials enter the drying device 2, firstly fall into the rotary drum 19 through the first material guide pipe 16, and meanwhile, the second motor 20 is started to work, the rotary drum 19 is driven to rotate through the transmission action among the driving belt pulley 21, the belt 22 and the driven belt pulley 23, the raw materials passing through the rotary drum 19 are centrifugally dried, and the mother liquor flows out from a mother liquor outlet on the pipe body 18;
s3, conveying the centrifugally dried raw materials into a conveying device 3, firstly, dropping the centrifugally dried raw materials onto a conveying
The mixing device 1 is connected with the drying device 2 through a first material guide pipe 16, the drying device 2 is connected with the feeding end of the conveying device 3 through a second material guide pipe 17, and the discharging end of the conveying device 3 is connected with the crushing
The mixing device 1 comprises a first motor 5, a mixing tank 6, a sleeve 7, a connecting rod 8, a stirring frame 9, a stirring shaft 10, a stirring paddle 11 and a transmission case 12, wherein a feeding funnel is arranged on the top surface of the mixing tank 6, the first motor 5 is arranged in the middle of the top surface of the mixing tank 6, the output end of the first motor 5 is connected with the stirring shaft 10, the other end of the stirring shaft 10 extends into the mixing tank 6 and is rotatably connected with the mixing tank 6, the transmission case 12 is arranged on the top surface of the interior of the mixing tank 6, and a transmission mechanism is arranged in the transmission case 12;
the stirring shaft 10 penetrates through the transmission case 12 and is rotationally connected with the transmission case 12, the transmission mechanism comprises a driving bevel gear 13, a transmission bevel gear 14 and a driven bevel gear 15, the outer wall of the stirring shaft 10 is respectively sleeved with the driving bevel gear 13 and the driven bevel gear 15, the driving bevel gear 13 is positioned right above the driven bevel gear 15, the transmission bevel gear 14 is arranged between the driving bevel gears 13, the transmission bevel gears 14 are symmetrically arranged in two groups, the two groups of transmission bevel gears 14 are rotationally arranged on the inner wall of the transmission case 12, and the transmission bevel gears 14 are respectively meshed with the driving bevel gear 13 and the driven bevel gear 15;
the stirring paddle 11 is arranged on the outer wall of the bottom of the stirring shaft 10, the sleeve 7 is arranged at the bottom of the driven bevel gear 15, the sleeve 7 penetrates through the bottom surface of the transmission case 12 and is rotatably connected with the transmission case 12, the sleeve 7 is sleeved on the outer wall of the stirring shaft 10 and is rotatably connected with the stirring shaft 10, the connecting rods 8 are horizontally arranged on two sides of the outer wall of the sleeve 7 respectively, and the stirring frame 9 is arranged at one end, far away from the sleeve 7, of each connecting rod 8.
The stirring frame 9 is a direction frame, a discharge port is arranged at the bottom of the mixing tank 6 and is connected with a feeding pipe of a first material guiding pipe 16, and the first material guiding pipe 16 is connected with the drying device 2;
drying device 2 includes body 18, rotary drum 19, second motor 20, driving pulley 21, belt 22, driven pulley 23, the cover is equipped with body 18 on the outer wall of rotary drum 19, and rotate with body 18 and be connected, the feed end of rotary drum 19 rotates with the discharge end of first baffle pipe 16 to be connected, and the cover is equipped with driven pulley 23 on the outer wall of rotary drum 19 feed end, be provided with second motor 20 on the outer wall of body 18, the output and the driving pulley 21 of second motor 20 are connected, driving pulley 21 passes through belt 22 and is connected with driven pulley 23 transmission, the discharge end of rotary drum 19 rotates with the feed end of second baffle pipe 17 to be connected.
The side wall of the rotary drum 19 is uniformly provided with a plurality of groups of filter holes, the pipe body 18 and the rotary drum 19 are obliquely arranged, and the bottom of the pipe body 18 close to the conveying device 3 is provided with a mother liquid discharge port.
The discharge end of second baffle 17 is located the top of conveyer 3 material loading end, conveyer 3 includes
The inclined part of the
The bottom of 24 inclinations of transport case is provided with the discharge gate, and be connected with reducing
The working principle of the invention is as follows: the 3D printing material prepared from the acrylic emulsion and the inorganic compound powder has the high structural strength and deformation resistance of the inorganic compound and the high flexibility of the organic polymer; the solid finished product printed by the 3D printing material has excellent mechanical strength and mechanical property, and good flexibility, effectively overcomes the defects of the current 3D printing material, and has extremely wide application prospect;
acrylic emulsion and inorganic compound powder are stirred and mixed through a mixing device 1, the acrylic emulsion and the inorganic compound powder are firstly added into a mixing tank 6 through a charging hopper, then a first motor 5 is started to work to drive a stirring shaft 10 to rotate, the stirring shaft 10 rotates to drive stirring paddles 11 to rotate, so that raw materials in the middle part in the mixing tank 6 are mixed, meanwhile, the stirring shaft 10 rotates to drive a driving bevel gear 13 to rotate, the driving bevel gear 13 drives a driven bevel gear 15 to rotate through two groups of transmission bevel gears 14, the driven bevel gear 15 drives a stirring frame 9 on a connecting rod 8 to rotate through a sleeve 7, so that the stirring frame 9 mixes raw materials in the inner edge of the mixing tank 6, the stirring paddles 11 on the stirring shaft 10 and the stirring frame 9 on the connecting rod 8 reversely rotate through a transmission mechanism, and the stirring paddles 11 on the stirring shaft 10 can stir and mix raw materials in the middle part in the mixing tank 6, the stirring frame 9 on the connecting rod 8 can stir and mix the raw materials at the edge in the mixing tank 6, so that the raw materials in the mixing tank 6 can be uniformly mixed and stirred, the mixing and stirring efficiency is greatly improved, and the problems that in the prior art, when 3D printing raw materials are stirred and mixed, the raw materials in the mixing tank 6 are usually mixed by adopting a mode that a group of stirring shafts are provided with stirring blades, the stirring mode has low stirring efficiency, the raw materials can be fully mixed only by spending long stirring time, the mixing efficiency of the 3D printing raw materials is greatly reduced, and the preparation period of the 3D printing raw materials is prolonged are solved;
the uniformly mixed raw materials enter the drying device 2, firstly fall into the rotary drum 19 through the first material guide pipe 16, and simultaneously, the second motor 20 is started to work, the rotary drum 19 is driven to rotate through the transmission action among the driving belt pulley 21, the belt 22 and the driven belt pulley 23, the raw materials passing through the rotary drum 19 are centrifugally dried, and the mother liquor flows out from a mother liquor outlet on the pipe body 18;
the centrifugally dried raw materials enter the conveying device 3, firstly fall onto the conveying belt 29 and are conveyed by the conveying belt 29, and in the process of conveying the raw materials, the heating box is heated through the heat source inlet pipe 32 and the heat source outlet pipe 27, so that the raw materials on the conveying belt 29 are heated, the residual mother liquor enters the condenser from the condenser connecting pipe 25, and the raw materials conveyed to the top of the conveying box 24 fall into the crushing device 4; the fourth motor 35 is started, the two groups of crushing rollers 38 are driven to rotate through the gear 36 and the transmission shaft 37, the raw materials are crushed, and the crushed raw materials are discharged from the discharge pipe 33, so that the 3D printing material is obtained; the conveyer belt 29 through setting up plays the effect of transportation to the raw materials, can dry the raw materials through the heating cabinet in the transport case 24, the efficiency of raw materials stoving has been improved greatly, thereby guarantee the purity of raw materials, and improve the efficiency of 3D printing material preparation simultaneously, this 3D printing material is in the preparation process, the realization is mixed, dry, effectively combine between transportation and the smashing, thereby the efficiency of 3D printing material at preparation technology has been improved greatly, the cycle of preparation technology is shortened.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
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