CN110464034B - Colloid 3D printing system - Google Patents

Abstract

The invention relates to the technical field of 3D printing, and provides a colloid 3D printing system, which comprises: a homogenizing tank for mixing to obtain a colloidal solution; the liquid inlet of the heater is connected with the liquid outlet of the homogenate tank, and the obtained colloidal solution is heated; a cooling chamber in which a printing head and a printing platform are arranged; the printing head is connected with a liquid outlet of the heater through a supply pipeline, and the printing head and/or the printing platform are connected with the three-dimensional driving assembly. This colloid 3D printing system obtains colloidal solution through the homogenate jar. And finally, injecting the colloidal solution into a heater to melt the suspension to form a stable solution. After the colloid forms stable solution, the cooling chamber is arranged corresponding to the printing interval, the printing head and the printing platform are arranged in the cooling chamber, and the model is selected for printing. This colloid 3D printing system prints and obtains the colloid shape various and change many, can satisfy under the various conditions to the different demands of colloid shape, realizes the free forming of colloid.

Description

Colloid 3D printing system

Technical Field

The invention relates to the technical field of 3D printing, in particular to a colloid 3D printing system.

Background

The colloid is a 3D printing support structure material with uniform printing characteristics, phase-change deposition and stable forming.

Taking food gels as an example, as common food additives, the food gels are often used in different foods, such as desserts, mousses, jellies, tortoise jelly and the like, and can also be used as "slow release agents" of medicines, but most of the food gels commonly used in the current market are formed by using molds, and have a single shape, and if the shape of the food gel needs to be modified, different molds need to be customized.

Disclosure of Invention

The present invention has been made to solve at least one of the problems occurring in the prior art or the related art

One of the objects of the invention is: the utility model provides a colloid 3D printing system, the colloid shape that the mould shaping colloid that solves to exist among the prior art obtained is single problem.

In order to achieve the object, the present invention provides a colloid 3D printing system, comprising:

a homogenizing tank for mixing to obtain a colloidal solution;

the liquid inlet of the heater is connected with the liquid outlet of the homogenate tank, and the obtained colloidal solution is heated;

the cooling chamber is internally provided with a printing head and a printing platform, and the printing platform is positioned below the printing head; the printing head is connected with the liquid outlet of the heater through a supply pipeline, and the printing head and/or the printing platform are connected with a three-dimensional driving assembly, so that the printing head moves relative to the printing platform.

In one embodiment, further comprising:

the vortex tube comprises a cold air port which is communicated with the cooling chamber through an air supply pipeline;

and the air compressor is connected with the vortex tube and used for inputting air to the vortex tube.

In one embodiment, the air outlet of the air supply duct corresponds to the print head.

In one embodiment, further comprising:

the fixed bracket is used for fixing the homogenate tank, the heater, the cooling chamber and the three-dimensional driving assembly;

the fixed bolster is including being located the first support of bottom, and install in the second support of first support top, homogenate jar with the heater is fixed in the dorsal part of second support, the cooling chamber is fixed in first support top just is located the front side of second support.

In one embodiment, the second bracket is a double gantry;

the three-dimensional drive assembly includes:

the Z-direction optical axis is fixed between the double door-shaped frames;

two ends of the X-direction optical axis are respectively installed on the Z-direction optical axis through a sliding block;

the Y-direction optical axis is arranged on the first bracket;

the printing head is arranged on the X-direction optical axis through a sliding block, and the printing platform is arranged on the Y-direction optical axis through a sliding block;

a first avoidance groove of the X-direction optical axis is formed in the side wall of the cooling chamber, a second avoidance groove of the feeding pipeline is formed in the top plate of the cooling chamber, and avoidance holes of the Y-direction optical axis are formed in the panel of the cooling chamber; the Z-direction optical axis is positioned outside the cooling chamber.

In one embodiment, an organ cover is arranged at the first avoidance groove and/or the second avoidance groove.

In one embodiment, the homogenization tank comprises:

a tank body;

the tank cover is arranged at the opening of the tank body, a stirring shaft is arranged on the tank cover, and a blade is arranged at one end of the stirring shaft, which is positioned in the tank body;

and the hoop is arranged on the tank body and used for installing the tank body to the fixed support.

In one embodiment, the heater comprises:

a housing secured to the bracket by a mounting bracket;

the heating rod is fixed inside the shell;

the spiral channel is positioned in the shell, is arranged at the periphery of the heating rod and extends along the axial direction of the heating rod in a zigzag manner, and heats the colloidal solution entering the spiral channel.

In one embodiment, further comprising:

and the outer cover wraps the homogenate tank, the heater, the cooling chamber and the three-dimensional driving assembly.

In one embodiment, a first observation window is formed on the front panel of the cooling chamber, and a second observation window corresponding to the first observation window is disposed on the housing.

The technical scheme of the invention has the following advantages: according to the colloid 3D printing system, the colloid solution is obtained through the homogenizing tank, and the colloid solution is generally a suspension. And finally, injecting the colloidal solution into a heater to melt the suspension to form a stable solution. After the colloid formed stable solution, if putting into low temperature environment again, then the solution will solidify into the colloid, so correspond the interval and set up the cooling chamber of printing, will beat printer head and print platform and all set up in the cooling chamber, select the model to print. This colloid 3D printing system prints and obtains the colloid shape various and change many, can satisfy under the various conditions to the different demands of colloid shape, realizes the free forming of colloid.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic front side view of the internal components of a colloidal 3D printing system according to an embodiment of the invention;

fig. 2 is a schematic diagram of a backside structure of internal components of a colloid 3D printing system according to an embodiment of the present invention;

fig. 3 is a schematic front side view of the internal components of a colloid 3D printing system after the cooling chamber is removed according to an embodiment of the present invention;

FIG. 4 is a schematic view of the mounting of the X-axis and Z-axis in an embodiment of the present invention;

FIG. 5 is a schematic view of the installation of the Y-axis optical axis in the embodiment of the present invention;

FIG. 6 is a schematic structural view of a cooling chamber according to an embodiment of the present invention;

FIG. 7 is a schematic perspective view of a cooling chamber of an embodiment of the present invention;

FIG. 8 is a schematic top view of a cooling chamber according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of the construction of a homogenate tank of an embodiment of the present invention;

FIG. 10 is a schematic structural view of a heater according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a colloid 3D printing system according to an embodiment of the present invention;

in the figure: 1. fixing a bracket; 101. a first bracket; 102. a second bracket; 2. a cooling chamber; 201. a first observation window; 202. an organ cover; 3. an air compressor; 4. a vortex tube; 401. a cold air port; 402. a hot air port; 5. a homogenizing tank; 501. a tank body; 502. a can lid; 503. hooping; 504. a stirring shaft; 505. a paddle; 506. a liquid discharge pipe; 6. a heater; 601. a housing; 602. a heating rod; 603. a spiral channel; 604. a temperature sensor; 605. a mounting frame; 7. a print head; 8. a feed conduit; 9. an air supply duct; 10. an operation screen; 11. a pressure gauge; 12. an air pressure switch of the air compressor; 13. a housing; 1301. a second observation window; 1302. operating a window; 14. heat dissipation holes; 15. footing; 16. a Z-direction limit switch; 17. a Z-direction limiting plate; 18. a Z-direction stepping motor; 19. a Z-direction optical axis; 20. a slider; 21. a Y-direction optical axis; 22. a Y-direction stepping motor; 23. a Y-direction synchronous belt; 24. a synchronous pulley; 25. an X-direction optical axis; 26. an X-direction stepping motor; 27. an X-direction synchronous belt; 28. a flow equalizing groove; 29. a water pump; 30. a switching power supply; 31. a sandwich pipe; 32. a printing platform; 33. and a PWM module.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, the colloid 3D printing system of the embodiment includes a homogenization tank 5, a heater 6 and a cooling chamber 2. Wherein, the homogenate tank 5 is used for mixing to obtain a colloidal solution; a liquid inlet of the heater 6 is connected with a liquid outlet of the homogenate tank 5 to heat the obtained colloidal solution; the print head 7 and the print table 32 are provided in the cooling chamber 2, and the print table 32 is located below the print head 7. The print head 7 is connected to the outlet of the heater 6 via a supply conduit 8, and the print head 7 and/or the print platform 32 are connected to a three-dimensional drive assembly to move the print head 7 relative to the print platform 32.

The term "three-dimensional driving assembly" refers to any assembly that can move the print head 7 and/or the print platform 32 in three-dimensional space. For example, the three-dimensional driving assembly may be a combination of a plurality of driving motors, a combination of a plurality of driving hydraulic cylinders, a combination of a plurality of driving motors and driving hydraulic cylinders, or the like, as long as "the printing head 7 performs three-dimensional motion with respect to the printing platform 32 under the action of the three-dimensional driving assembly" is satisfied. Moreover, the three-dimensional driving assembly can be connected with only the printing head 7, only the printing platform 32, or both the printing head 7 and the printing platform 32.

This colloid 3D printing system obtains colloidal solution through homogenate jar 5, and colloidal solution at this moment is the turbid liquid generally. Then, the colloid solution is injected into the heater 6, so that the suspension melts to form a stable solution. After the colloid forms stable solution, if it is placed in low temperature environment again, the solution will solidify into the colloid, so correspond the printing interval and set up cooling chamber 2, will beat printer head 7 and print platform 32 and all set up in cooling chamber 2, select the model to print. This colloid 3D printing system prints and obtains the colloid shape various and change many, can satisfy under the various conditions to the different demands of colloid shape, realizes the free forming of colloid.

In one embodiment, the colloid 3D printing system further comprises a vortex tube 4, see fig. 2. Wherein, vortex tube 4 includes cold wind mouth 401, and cold wind mouth 401 communicates cooling chamber 2 through supply air duct 9. Furthermore, the vortex tube 4 can cool the cooling chamber 2 by introducing cold air into the cooling chamber 2. Of course, instead of using the vortex tube 4 to cool the cooling chamber 2, any cooling method known in the art may be used to cool the cooling chamber 2.

Wherein, when the vortex tube 4 is adopted to refrigerate the cooling chamber 2:

the vortex tube 4 only needs to input compressed air with general pressure, and the compressed air is converted by the vortex tube 4, so that cold air is generated at one end of the vortex tube 4, and hot air is generated at the other end of the vortex tube. The lowest temperature of the cold air can reach-46 ℃ under the premise of drying the air, and the highest temperature of the hot air can reach 127 ℃. The vortex tube 4 can adjust the flow of gas and the temperature of the cold air end by adjusting a valve at the hot air end, so as to obtain the desired cold air parameters.

For the hot air port 402 generating hot air, the hot air of the hot air port 402 may be exhausted to the outside of the colloid 3D printing system. In addition, the hot air generated by the vortex tube 4 can be used for heating the heater 6, thereby achieving full utilization of energy. For example, when the heater 6 includes a housing 601 mentioned later, hot air generated by the vortex tube 4 may be introduced into the interior of the housing 601 and heat the spiral passage 603 inside the housing 601.

In addition, an air compressor 3 can be adopted to be connected with the vortex tube 4, and then air is input into the vortex tube 4 through the air compressor 3. Specifically, can adopt a small-size air compressor machine 3 to provide compressed air for vortex tube 4, compressed air gets into vortex tube 4 after, outside one end hot-air outgoing colloid 3D printing system, cold air gets into cooling chamber 2, continuously cools down in the cooling chamber 2. In order to control the temperature of the cooling chamber 2, a temperature sensor may be provided in the cooling chamber 2. In addition, colloid 3D printing system disposes a mainboard, and the PID control strategy of mainboard controls opening of air compressor machine 3 and stops to reach the purpose of controlling the temperature in cooling chamber 2 through opening of controlling opening of air compressor machine 3.

It can be seen from fig. 3 that the outlet of the supply duct 9 corresponds to the print head 7. This arrangement ensures the molding of the print head 7 portion.

As can be seen from fig. 1 to 3, the colloid 3D printing system further comprises a fixing bracket 1 for fixing the homogenate tank 5, the heater 6, the cooling chamber 2 and the three-dimensional driving assembly. The homogenate tank 5, the heater 6, the cooling chamber 2 and the three-dimensional driving assembly are fixed through the fixing support 1, so that the colloid 3D printing system is highly integrated, and the colloid 3D printing system is guaranteed to occupy a small space.

In one embodiment, the stationary frame 1 includes a first frame 101 positioned at the bottom, and a second frame 102 installed above the first frame 101, the homogenization tank 5 and the heater 6 are fixed to the rear side of the second frame 102, and the cooling chamber 2 is fixed above the first frame 101 and positioned at the front side of the second frame 102. Wherein, the cooling chamber 2 is located at the front side of the second bracket 102, which can facilitate the observation of the printing condition in the cooling chamber 2. Further, since the cooling chamber 2 is fixed above the first bracket 101, the reliability of the installation of the cooling chamber 2 can be ensured. It is needless to say that, in order to realize the mounting of the homogenate tank 5, the heater 6, the cooling chamber 2, and the three-dimensional driving assembly, the positional relationship of the first support 101 and the second support 102 is not necessarily as shown in fig. 1 to 3, and the fixing support 1 is not necessarily comprised of the first support 101 and the second support 102. But the structural form of the fixing support 1 in the figures 1 to 3 can ensure that all parts in the colloid 3D printing system are more reasonably distributed.

In addition, the first bracket 101 may also be used to mount electrical components including the switching power supply 30, the PWM module 33 (pulse width modulation module), and the like.

Referring again to fig. 1-3, the second frame 102 is a double-door frame. And in conjunction with fig. 4 and 5, it is found that the three-dimensional drive assembly includes a Z-direction optical axis 19, an X-direction optical axis 25, and a Y-direction optical axis 21. Wherein, the Z-direction optical axis 19 is fixed between the double door-shaped frames; two ends of the X-direction optical axis 25 are respectively arranged on the Z-direction optical axis 19 through the sliding blocks 20; the Y-axis 21 is mounted on the first holder 101. In addition, the print head 7 is attached to the X-direction optical axis 25 via the slider 20, and the print platform 32 is attached to the Y-direction optical axis 21 via the slider 20.

In this case, the rotation of the Z-direction optical axis 19 can drive the X-direction optical axis 25 to move up and down along the Z-direction optical axis 19; rotation of the X-axis 25 may cause the print head 7 to move along the X-axis 25; rotation of Y-axis 21 may cause print platform 32 to move along Y-axis 21. Further, in this case, the printing platform 32 and the printing head 7 can relatively perform three-dimensional movement, thereby satisfying the printing requirement of any model.

In order to meet the installation requirement of the three-dimensional driving assembly, a first avoiding groove of an X-direction optical axis 25 is formed on the side wall of the cooling chamber 2, and a second avoiding groove of the feeding pipeline 8 is formed on the top plate of the cooling chamber 2; a relief hole of the Y-direction optical axis 21 is formed on a panel (including a front panel and a back panel) of the cooling chamber 2; the Z-axis 19 is located outside the cooling chamber 2. Furthermore, the two ends of the X-direction optical axis 25 are installed on the Z-direction optical axis 19 after passing through the first avoiding groove, and the feeding pipeline 8 is connected with the liquid outlet of the heater 6 after passing through the second avoiding groove.

It is found from fig. 4 and 5 that:

two Y-direction optical axes 21 are installed on the first support 101, two linear bearings are correspondingly installed below the printing platform 32 and sleeved on the Y-direction optical axes 21 to slide, two ends of an opening end of the Y-direction synchronous belt 23 are fixedly connected to a boss in the center of the lower portion of the printing platform 32, one end of the Y-direction synchronous belt 23 is wound on a synchronous belt pulley 24 (shielded) located above the operation screen 10, and the other end of the Y-direction synchronous belt 23 is wound on an output shaft synchronous belt pulley 24 of the Y-direction stepping motor 22, so that when the Y-direction stepping motor 22 rotates, the printing platform 32 can move back and forth along the Y direction.

A sliding block 20 is arranged on the Z-direction optical axis 19, an X-direction stepping motor 26 is fixed on the sliding block 20, and a synchronous belt wheel 24 is arranged on an output shaft of the X-direction stepping motor 26; similarly, for the other Z-direction optical axis 19, a slider 20 is similarly mounted on the Z-direction optical axis 19, an X-direction stepping motor 26 is fixed to the slider 20, and a timing pulley 24 is mounted on an output shaft of the X-direction stepping motor 26. An X-direction timing belt 27 is wound around the two timing pulleys 24, and both ends of the opening are fixed to the sliders 20 connected to the print head 7.

In addition, for the Z-direction optical axis 19, two linear bearings are arranged inside the slide block 20, the two linear bearings are sleeved on the Z-direction optical axis 19, a lead screw nut is arranged on the slide block 20, the lead screw nut is sleeved on the lead screw, and therefore when the lead screw is driven by the Z-direction stepping motor 18 to rotate, the Z-direction slide block 20 can freely slide up and down. After the Z-direction limit switch 16 is triggered, the triggered signal will mean that the Z-direction slider 20 moves to a limit position above Z, at which time the Z-direction stepping motor 18 should stop, if the Z-direction limit switch 16 is not triggered, the Z-direction stepping motor 18 will drive the slider 20 to continue to move upwards along the Z-direction optical axis 19, in order to protect other components in the upper space of the colloid 3D printing system, a Z-direction limit plate 17 is specially arranged, and after the Z-direction limit switch 16 fails, the Z-direction limit plate 17 serves as a mechanical limit function to prevent the slider 20 on the Z-direction optical axis 19 from continuing to move upwards.

When the stepping motor connected to the Z-direction optical axis 19 is started, the Z-direction optical axis 19 rotates, and the X-direction optical axis 25 and the X-direction stepping motor 26 thereof, the synchronous pulley 24, the X-direction synchronous belt 27, the print head 7 and the slider 20 thereof, etc. ascend and descend synchronously.

When the Y-direction stepper motor 22 is activated, the print platform 32 moves back and forth along the Y-direction.

When the X-direction stepping motor 26 is activated, the print head 7 moves left and right in the X direction.

As can be seen from fig. 6 and 7, the organ cover 202 is provided at each of the first avoidance groove and the second avoidance groove. Of course, the organ cover 202 may be provided only in one of the first avoidance groove and the second avoidance groove. The foldability of the bellows cover 202 ensures the sealing of the cooling chamber 2. Moreover, thickened organ covers 202 can be installed at the first avoidance groove and the second avoidance groove to further ensure the sealing performance of the cooling chamber 2 and prevent external hot air from entering the inside of the cooling chamber 2. Of course, other sealing structures than the bellows cover 202 may be used to ensure the sealing effect of the cooling chamber.

In order to ensure the installation and movement of the feeding duct 8 and the X-axis 25, a plurality of holes need to be drilled in the organ cover 202, and then partial sealing is performed by means of dispensing or the like.

In addition, referring to fig. 8, a V-shaped flow equalizing slot 28 is disposed inside the cooling chamber 2 to make the cold air flow downward uniformly and slowly, so as to ensure that the temperature in the cooling chamber 2 is reduced uniformly and the temperature field is stable and consistent.

In one embodiment, referring to fig. 9, homogenization tank 5 includes a tank body 501 and a tank cover 502. The tank cover 502 is installed at the opening of the tank body 501, the stirring shaft 504 is installed on the tank cover 502, and the blade 505 is installed at one end of the stirring shaft 504 located inside the tank body 501. Further, the tank 501 is mounted on the fixing bracket 1 through an anchor ear 503.

Water and raw material glue powder are filled in the homogenizing tank 5, the paddle 505 in the tank is driven to rotate by the homogenizing motor, turbid liquid in the tank is continuously stirred (because colloidal solution is easy to layer), a liquid discharge pipe 506 which is directly connected to the bottom of the tank body 501 is arranged on one side in the tank body 501 and extends out of the tank body 501, and the liquid discharge pipe 506 is also communicated with the liquid outlet and the outside of the homogenizing tank 5.

Further, a drain pipe 506 of the homogenate tank 5 is connected to an inlet end of the water pump 29 through a hose, an outlet end of the water pump 29 is connected to a liquid inlet above the heater 6 through a hose, and after the colloidal solution is heated in the heater 6, the colloidal solution is connected to a subsequent component through a sandwich pipeline 31 with a heat preservation effect.

In one embodiment, referring to fig. 10, the heater 6 includes a housing 601, a heater rod 602, and a spiral channel 603. Wherein the housing 601 is secured to the support by a mounting bracket 605; the heating rod 602 is fixed inside the housing 601; the spiral channel 603 is located inside the housing 601, is located on the outer periphery of the heating rod 602, and extends in a zigzag manner along the axial direction of the heating rod 602, so as to heat the obtained colloidal solution.

The casing 601 of the heater 6 may be coated with a heat insulating material, and the casing 601 is provided with a liquid inlet and a liquid outlet, which are connected to two ends of the spiral channel 603, so that the colloidal solution enters the spiral channel 603 from the liquid inlet and leaves the heater 6 through the liquid outlet. The heating rod 602 heats the colloidal solution inside the spiral channel 603 while the colloidal solution passes through the spiral channel 603. Of course, instead of heating the colloidal solution in the spiral channel 603 by the heating rod 602, other forms of heating units such as heating wires, heating blocks, etc. may be used instead of the heating rod 602. Also, a temperature sensor 604 may be provided near the outlet of the heater 6 to monitor the temperature at the outlet of the heater 6.

Because the colloid (such as carrageenan, algin, guar gum, etc.) is characterized by heating the suspension to melt the colloid to form a stable solution, the heating link is essential for the colloid 3D printing system.

After the colloid forms a stable solution, the stable solution is placed in a low-temperature environment, so that the solution can be solidified into the colloid. And a desired low temperature environment can be formed in the cooling chamber 2.

In one embodiment, the colloidal 3D printing system further comprises a housing 13. Wherein the housing 13 encloses the homogenising tank 5, the heater 6, the cooling chamber 2 and the three-dimensional drive assembly.

In order to facilitate observation of the working process of the colloid 3D printing system, a first observation window 201 is formed on the front panel of the cooling chamber 2, and a second observation window 1301 is arranged on the outer cover 13, wherein the second observation window 1301 corresponds to the first observation window 201. Further, the printing inside the cooling chamber 2 is observed through the first observation window 201 and the second observation window 1301.

In addition, referring to fig. 1, 3, 5 and 11, an operation screen 10 is fixed on the first bracket 101, and an operation window 1302 of the operation screen 10 is formed on the outer cover 13.

Further, referring to fig. 11, the housing 13 of the colloid 3D printing system is round and beautiful, and covers the internal components, the second observation window 1301 on the housing 13 is a detachable sealed observation window, and the operation window 1302 is arranged below the second observation window 1301.

In fig. 11, an air compressor pressure switch 12 and an air compressor pressure gauge 11 are provided on the right side of the housing 13 to control and measure the air pressure of the air compressor 3. The lower sides of the air pressure switch 12 of the air compressor and the pressure gauge 11 of the air compressor are provided with the heat dissipation holes 14, so that hot air of the vortex tube 4 can be discharged to the outside of the colloid 3D printing system through the heat dissipation holes 14, and heat inside the colloid 3D printing system can be discharged outside through the heat dissipation holes 14.

Furthermore, four bottom feet 15 are arranged at the bottom of the outer cover 13, so that a colloid 3D printing system convenient to place and use is obtained.

The colloid 3D printing system is adopted for printing, and the method roughly comprises the following steps:

opening the homogenizing tank 5, and adding colloid powder, water and other formula raw materials into the homogenizing tank 5;

stirring by a paddle 505 in the homogenization tank 5 to prepare suspension;

the water pump 29 is started to input the suspension into the heater 6;

the colloidal solution enters a feeding pipeline 8;

selecting a model for printing;

extruding the colloidal solution in a cooling environment in a fixed amount, and performing molding printing;

after printing is completed, the first observation window 201 and the second observation window 1301 are removed, and the printed model is taken out.

The colloid 3D printing system can be used for molding colloid food and colloid medicines, particularly for in-situ gel, the 3D printing technology is utilized to realize free molding of colloid, and the molding method is simple.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims (9)

1. A colloidal 3D printing system, comprising:

a homogenizing tank for mixing to obtain a colloidal solution;

the liquid inlet of the heater is connected with the liquid outlet of the homogenate tank, and the obtained colloidal solution is heated;

the heater includes: a housing; the heating rod is fixed inside the shell; the spiral channel is positioned in the shell, is wound on the periphery of the heating rod and extends in a zigzag manner along the axial direction of the heating rod, and heats the colloidal solution entering the spiral channel;

the cooling chamber is internally provided with a printing head and a printing platform, and the printing platform is positioned below the printing head; the printing head is connected with a liquid outlet of the heater through a supply pipeline, and the printing head and/or the printing platform are connected with a three-dimensional driving assembly so that the printing head moves relative to the printing platform;

further comprising: the vortex tube comprises a cold air port and a hot air port, the cold air port is communicated with the cooling chamber through an air supply pipeline, and the hot air port is communicated with the shell;

and the air compressor is connected with the vortex tube and used for inputting air to the vortex tube.

2. The colloid 3D printing system according to claim 1, wherein an air outlet of the air supply duct corresponds to the print head.

3. The colloidal 3D printing system of claim 1, further comprising:

the fixed bracket is used for fixing the homogenate tank, the heater, the cooling chamber and the three-dimensional driving assembly;

the fixed bolster is including being located the first support of bottom, and install in the second support of first support top, homogenate jar with the heater is fixed in the dorsal part of second support, the cooling chamber is fixed in first support top just is located the front side of second support.

4. The colloidal 3D printing system according to claim 3,

the second bracket is a double-door type bracket;

the three-dimensional drive assembly includes:

the Z-direction optical axis is fixed between the double door-shaped frames;

two ends of the X-direction optical axis are respectively installed on the Z-direction optical axis through a sliding block;

the Y-direction optical axis is arranged on the first bracket;

the printing head is arranged on the X-direction optical axis through a sliding block, and the printing platform is arranged on the Y-direction optical axis through a sliding block;

a first avoidance groove of the X-direction optical axis is formed in the side wall of the cooling chamber, a second avoidance groove of the feeding pipeline is formed in the top plate of the cooling chamber, and avoidance holes of the Y-direction optical axis are formed in the panel of the cooling chamber; the Z-direction optical axis is positioned outside the cooling chamber.

5. The colloid 3D printing system according to claim 4, wherein an organ cover is disposed at the first avoiding groove and/or the second avoiding groove.

6. The colloid 3D printing system of claim 3, wherein the homogenate tank comprises:

a tank body;

the tank cover is arranged at the opening of the tank body, a stirring shaft is arranged on the tank cover, and a blade is arranged at one end of the stirring shaft, which is positioned in the tank body;

and the hoop is arranged on the tank body and used for installing the tank body to the fixed support.

7. The colloidal 3D printing system of claim 3, wherein the housing is secured to the second support by a mounting bracket.

8. The colloidal 3D printing system of claim 1, further comprising:

and the outer cover wraps the homogenate tank, the heater, the cooling chamber and the three-dimensional driving assembly.

9. The colloid 3D printing system according to claim 8, wherein a first observation window is formed on a front panel of the cooling chamber, and a second observation window is provided on the housing, the second observation window corresponding to the first observation window.

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