An extrusion forming device for ceramic 3D printing

Abstract

The present invention relates to the technical field of ceramic material forming, and specifically discloses an extrusion forming device for ceramic 3D printing, including a main chassis, a printing path driving track, and a slurry conveying mechanism. The printing path driving track and the slurry conveying mechanism are both arranged inside the main chassis, and the output end of the slurry conveying mechanism is connected with a double-head extrusion assembly; when it is necessary to quickly increase the speed of the slurry conveying mechanism to output slurry to the three-way guiding seat, the compensation power execution mechanism is synchronously started to instantaneously compensate the slurry inside the storage pipe through the communication compensation of the medium-through guiding pipe fitting and the double-chamber connecting pipe fitting to conduct heat in the auxiliary heat conduction pipeline, filling the instantaneous missing amount of the slurry output by the three-way guiding seat to the auxiliary heat conduction pipeline and the arc-shaped extrusion end when the output slurry speed increases, ensuring the stability of the diameter of the wire instantaneously extruded by the arc-shaped extrusion end when the output slurry speed increases, and further ensuring the forming quality.

Description

Technical Field

[0001] The present invention relates to the technical field of ceramic material forming, and more specifically to an extrusion forming device for ceramic 3D printing. Background Art

[0002] During the process of constructing a model using ceramics as a 3D printing material, if there is a situation where the structural area span between the upper and lower levels of the model is too large, and the bottom level is not sufficient to support the subsequent gradually stacked level surfaces, as the printing speed increases, the roughness of the two side surfaces of the green body will also increase with the increase in the printing speed. Restricted by this influence, it is easier for the internal cavity of the printing extrusion head to have an increase in extrusion air pressure due to the instantaneous increase in the printing speed requirement. The occurrence of this situation will directly cause a decrease in the instantaneous extrusion volume, resulting in an abnormal decrease in the diameter of the extrusion wire output in this section. At the same time, it will cause an accelerated drying rate of the extrusion wire, resulting in the problem that the ceramic slurry after extrusion cannot reduce the layer depth on the side of the green body through its own fluidity. Therefore, when printing a model body with a large structural area span between the upper and lower levels, it is more likely to cause the bonding force between layers to fail to meet the forming requirements, reduce the overall mechanical properties of the sintered ceramic model embryo, and cause a decrease in the supportability during the stacked forming of the ceramic green body. Summary of the Invention

[0003] In view of the problems in the prior art, the present invention provides an extrusion forming device for ceramic 3D printing. The technical solution adopted by the present invention to solve its technical problems is: an extrusion forming device for ceramic 3D printing, including a main chassis, a printing path driving track, and a slurry conveying mechanism. The printing path driving track and the slurry conveying mechanism are both arranged inside the main chassis. The output end of the slurry conveying mechanism is connected to a double-head extrusion assembly, which is used to extrude the ceramic slurry along a double cavity. Inside the double-head extrusion assembly, a speed adjustment missing amount compensation assembly is installed, which is used to adapt and compensate the single wire diameter of the slurry extruded by the double-head extrusion assembly after the printing speed increases.

[0004] The double-headed extrusion assembly includes a three-way feeding seat, an auxiliary heat conduction pipeline, an arc-shaped extrusion end, and an instantaneous compensation storage pipe. A compensation power actuator is fixedly connected to the bottom of the three-way feeding seat. A two-way conduction pipe is fixedly connected between the three-way feeding seat and the auxiliary heat conduction pipeline. The arc-shaped extrusion end is fixedly connected to the bottom of the auxiliary heat conduction pipeline and is in communication with the auxiliary heat conduction pipeline. The instantaneous compensation storage pipe is fixedly connected to the bottom of the three-way feeding seat. The speed regulation deficiency compensation assembly includes a sliding path limiting seat, a folding and sealing leather cavity, a middle-through flow guiding pipe fitting, and a double-cavity connecting pipe fitting. The sliding path limiting seat is arranged outside the instantaneous compensation storage pipe. The folding and sealing leather cavity is fixedly connected to the inner side of the sliding path limiting seat. The middle-through flow guiding pipe fitting is fixedly connected to the folding and sealing leather cavity, and one end of the middle-through flow guiding pipe fitting penetrates through the folding and sealing leather cavity and extends to the inner side of the instantaneous compensation storage pipe. A corrugated connecting pipe fitting is fixedly connected between the middle-through flow guiding pipe fitting and the double-cavity connecting pipe fitting. The corrugated connecting pipe fitting is used to connect the compensation channels formed by the instantaneous compensation storage pipe, the middle-through flow guiding pipe fitting, and the double-cavity connecting pipe fitting.

[0005] Preferably, the input end of the three-way feeding seat is fixedly connected to the output end of the slurry conveying mechanism. The slurry conveying mechanism extrudes the slurry along the extrusion channel formed by the three-way feeding seat, the two-way conduction pipe, and the auxiliary heat conduction pipeline through the arc-shaped extrusion end.

[0006] Preferably, a compensation power actuator is arranged on one side of the three-way feeding seat. The output end of the compensation power actuator is fixedly connected to the instantaneous compensation storage pipe and extends into the assembly groove installed inside the instantaneous compensation storage pipe. A cavity piston is slidably connected inside the instantaneous compensation storage pipe. One end of the cavity piston is fixedly connected to the outer wall of the middle-through flow guiding pipe fitting.

[0007] Preferably, a directional driving rail is arranged outside the instantaneous compensation storage pipe. The directional driving rail is signal-connected to the slurry conveying mechanism. The output end of the directional driving rail is fixedly connected to an outer sleeved clamping ring. The other end of the outer sleeved clamping ring is fixedly connected to the middle-through flow guiding pipe fitting.

[0008] Preferably, a one-way solenoid valve is arranged inside the three-way feeding seat. The one-way solenoid valve is signal-connected to the slurry conveying mechanism. The output end of the one-way solenoid valve is fixedly connected to the instantaneous compensation storage pipe.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. When constructing the conventional structural surface of the double-headed extrusion assembly, the single-pass solenoid valve is opened to keep the three-way guiding seat in a three-way state. As a result, the slurry conveying mechanism can inject the subsequent ceramic slurry for compensation into the inner cavity of the instantaneous compensation storage pipe. When the structural area span between the upper and lower levels of the model is too large and it is necessary to quickly increase the speed at which the slurry conveying mechanism outputs slurry to the three-way guiding seat, the compensation power actuator is synchronously started to conduct the slurry inside the instantaneous compensation storage pipe through the communication compensation of the middle-through diversion pipe fitting and the double-cavity connection pipe fitting in the auxiliary heating conduction pipeline, filling the instantaneous missing amount of the slurry output from the three-way guiding seat to the auxiliary heating conduction pipeline and the arc-shaped extrusion end when the output slurry speed increases, ensuring the stability of the diameter of the wire instantaneously extruded from the arc-shaped extrusion end when the output slurry speed increases, and thus ensuring the forming quality.

[0011] 2. When the compensation power actuator receives the signal of increased slurry output from the slurry conveying mechanism and starts, and fills the slurry inside the instantaneous compensation storage pipe into the inner side of the auxiliary heating conduction pipeline, the directional driving rail controls the middle-through diversion pipe fitting to rise longitudinally along the instantaneous compensation storage pipe with the start time of the compensation power actuator filling, so that the piston inside the cavity synchronously compresses the space inside the instantaneous compensation storage pipe, ensuring that the compensated slurry stored inside the instantaneous compensation storage pipe stably enters the inner side of the auxiliary heating conduction pipeline through the middle-through diversion pipe fitting and the double-cavity connection pipe fitting, ensuring the smoothness during compensation. At the same time, through the setting of the folding and shrinking sealing leather cavity and the corrugated connection pipe fitting, the corrugated connection pipe fitting and the middle-through diversion pipe fitting can maintain the overall sealing of the instantaneous compensation storage pipe while moving and rising during the compression action. Brief Description of the Drawings

[0012] The present invention will be further described below in conjunction with the drawings and embodiments.

[0013] Figure 1 It is a schematic structural diagram of an extrusion molding device for ceramic 3D printing according to the present invention.

[0014] Figure 2 It is a schematic structural diagram of the double-headed extrusion assembly and the speed regulation missing amount filling assembly in an extrusion molding device for ceramic 3D printing according to the present invention.

[0015] Figure 3 It is a cross-sectional view of the double-headed extrusion assembly and the speed regulation missing amount filling assembly in an extrusion molding device for ceramic 3D printing.

[0016] Figure 4 It is a front view of the double-headed extrusion assembly and the speed regulation missing amount filling assembly in an extrusion molding device for ceramic 3D printing.

[0017] In the figure: 1. Main chassis; 2. Print path drive track; 3. Slurry delivery mechanism; 4. Double-head extrusion assembly; 41. Three-way guide seat; 411. Two-way conduction pipe; 412. One-way solenoid valve; 42. Auxiliary heat conduction pipeline; 43. Arc-shaped extrusion end; 44. Instantaneous compensation storage pipe; 441. Cavity piston; 442. Assembly groove; 45. Compensation power actuator; 46. Directional drive rail; 5. Speed regulation missing amount replenishment assembly; 51. Sliding path limit seat; 52. Folding and shrinking sealing leather cavity; 53. Middle-through flow guiding pipe fitting; 531. Corrugated connecting pipe fitting; 532. Outer sleeve clamping ring; 54. Double-cavity connecting pipe fitting. Detailed implementation mode

[0018] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation modes.

[0019] As Figures 1-4 shown, an extrusion molding device for ceramic 3D printing according to the present invention includes a main chassis 1, a print path drive track 2 and a slurry delivery mechanism 3. The print path drive track 2 and the slurry delivery mechanism 3 are both arranged inside the main chassis 1. The output end of the slurry delivery mechanism 3 is connected with a double-head extrusion assembly 4. The double-head extrusion assembly 4 is used to extrude ceramic slurry along a double cavity. A speed regulation missing amount replenishment assembly 5 is installed inside the double-head extrusion assembly 4. The speed regulation missing amount replenishment assembly 5 is used to adapt and compensate the single filament diameter of the slurry extruded by the double-head extrusion assembly 4 after the printing speed increases.

[0020] In this embodiment, in order to solve the problem that when the structural area span of the upper and lower levels of the model is too large and the bottom level is not sufficient to support the subsequent gradually stacked level surfaces after being formed, the internal cavity of the extrusion head during printing is more likely to have an increase in extrusion air pressure due to the instantaneous increase in the printing speed requirement, resulting in an abnormal decrease in the diameter of the extrusion wire output in this section, and at the same time causing an accelerated drying rate of the extrusion wire. The present invention timely compensates for the missing amount of ceramic slurry generated due to the instantaneous increase in the printing speed requirement through the double-head extrusion assembly 4 and the speed regulation missing amount replenishment assembly 5 to solve this problem.

[0021] In this embodiment, since the technical problems solved by the present invention are not the path drive control and slurry delivery during the printing process, no technical improvements are made to the main chassis 1, the print path drive track 2 and the slurry delivery mechanism 3. The operation principles of the print path drive track 2 driving the extrusion path of the double-head extrusion assembly 4 and the slurry delivery mechanism 3 inputting extrusion slurry to the double-head extrusion assembly 4 are well-known technologies in the art and will not be elaborated here.

[0022] In this embodiment, the main chassis 1 is further provided with an independent signal transmission controller. The receiving end of the signal transmission controller is connected to the flow rate sensor provided in the slurry conveying mechanism 3, and the transmission end of the signal transmission controller is respectively connected to the compensation power actuator 45 and the directional drive rail 46. That is, after the flow rate sensor provided in the slurry conveying mechanism 3 obtains an increased flow rate, it sends a debugging command to the compensation power actuator 45 and the directional drive rail 46 through the signal transmission controller.

[0023] In an alternative embodiment of this embodiment, the double-head extrusion assembly 4 includes a three-way guide seat 41, an auxiliary heat conduction pipeline 42, an arc-shaped extrusion end 43, and an instantaneous compensation storage pipe 44. The bottom of the three-way guide seat 41 is fixedly connected to the compensation power actuator 45. A two-way conduction pipe 411 is fixedly connected between the three-way guide seat 41 and the auxiliary heat conduction pipeline 42. The arc-shaped extrusion end 43 is fixedly connected to the bottom of the auxiliary heat conduction pipeline 42 and is in communication with the auxiliary heat conduction pipeline 42. The instantaneous compensation storage pipe 44 is fixedly connected to the bottom of the three-way guide seat 41. The speed regulation missing amount replenishment assembly 5 includes a sliding path limiting seat 51, a folding and shrinking sealing leather cavity 52, a middle-through flow guiding pipe fitting 53, and a double-cavity connection pipe fitting 54. The sliding path limiting seat 51 is arranged outside the instantaneous compensation storage pipe 44. The folding and shrinking sealing leather cavity 52 is fixedly connected to the inside of the sliding path limiting seat 51. The middle-through flow guiding pipe fitting 53 is fixedly connected to the folding and shrinking sealing leather cavity 52, and one end of the middle-through flow guiding pipe fitting 53 penetrates through the folding and shrinking sealing leather cavity 52 and extends to the inside of the instantaneous compensation storage pipe 44. A corrugated connection pipe fitting 531 is fixedly connected between the middle-through flow guiding pipe fitting 53 and the double-cavity connection pipe fitting 54. The corrugated connection pipe fitting 531 is used to connect the compensation channels formed by the instantaneous compensation storage pipe 44, the middle-through flow guiding pipe fitting 53, and the double-cavity connection pipe fitting 54.

[0024] In an alternative embodiment of this embodiment, the input end of the three-way guide seat 41 is fixedly connected to the output end of the slurry conveying mechanism 3. The slurry conveying mechanism 3 extrudes the slurry along the extrusion channel formed by the three-way guide seat 41, the two-way conduction pipe 411, and the auxiliary heat conduction pipeline 42 through the arc-shaped extrusion end 43. Among them, the inside of the auxiliary heat conduction pipeline 42 is heated by filling with heating wires to maintain the temperature during slurry conveying.

[0025] In this embodiment, when constructing the conventional structural surface of the double-headed extrusion assembly 4, the cavity piston 441 is located at the inner bottom of the instantaneous compensation storage pipe 44, and the one-way solenoid valve 412 is turned on to keep the two-way conduction pipe 411 in a three-way open state. At this time, the ceramic slurry input by the slurry conveying mechanism 3 is extruded from the inner side of the cavity formed by the two-way conduction pipe 411, the auxiliary heat conduction pipeline 42, and the arc-shaped extrusion end 43. During the extrusion process, a part of the ceramic slurry input by the slurry conveying mechanism 3 fills the inner side of the instantaneous compensation storage pipe 44, and is synchronously injected into the inner side of the auxiliary heat conduction pipeline 42 through the flow channel formed by the instantaneous compensation storage pipe 44, the middle-through flow guiding pipe fitting 53, and the double-cavity connection pipe fitting 54. Thus, during the slurry conveying process, the inner cavity of the instantaneous compensation storage pipe 44 is kept filled with the ceramic slurry for subsequent compensation. After the instantaneous compensation storage pipe 44 is filled with the ceramic slurry for compensation, the one-way solenoid valve 412 is closed so that the three-way guiding seat 41 can only output the ceramic slurry to the two-way conduction pipe 411, and then the three-way guiding seat 41 is adjusted to a two-way state. In the current state, only the auxiliary heat conduction pipeline 42 and the arc-shaped extrusion end 43 act on the extrusion of the ceramic slurry, while the instantaneous compensation storage pipe 44 is kept in a blocked state by closing the one-way solenoid valve 412, and the slurry for compensating for the shortage is intercepted inside the instantaneous compensation storage pipe 44. When the structural area span between the upper and lower levels of the model is too large and it is necessary to quickly increase the speed at which the slurry conveying mechanism 3 outputs the slurry to the three-way guiding seat 41, the compensation power actuator 45 is synchronously started to transfer the slurry inside the instantaneous compensation storage pipe 44 into the auxiliary heat conduction pipeline 42 through the connection compensation of the middle-through flow guiding pipe fitting 53 and the double-cavity connection pipe fitting 54, filling the instantaneous shortage of the slurry output by the three-way guiding seat 41 to the auxiliary heat conduction pipeline 42 and the arc-shaped extrusion end 43 when the output slurry speed increases, and ensuring the stability of the diameter of the wire instantaneously extruded by the arc-shaped extrusion end 43 when the output slurry speed increases.

[0026] In an alternative embodiment of this embodiment, a compensation power actuator 45 is provided on one side of the three-way guiding seat 41. The output end of the compensation power actuator 45 is fixedly connected to the instantaneous compensation storage pipe 44 and extends into the assembly groove 442 installed inside the instantaneous compensation storage pipe 44. A cavity piston 441 is slidably connected inside the instantaneous compensation storage pipe 44, and one end of the cavity piston 441 is fixedly connected to the outer wall of the middle-through flow guiding pipe fitting 53.

[0027] In this embodiment, the compensation power actuator 45 is a pressure feeder with the same power as the slurry conveying mechanism 3. When it is necessary to quickly increase the speed at which the slurry conveying mechanism outputs the slurry to the three-way guiding seat 41, the compensation power actuator 45 transfers the slurry intercepted in the instantaneous compensation storage pipe 44 into the inner side of the auxiliary heat conduction pipeline 42 through the middle-through flow guiding pipe fitting 53 and the corrugated connection pipe fitting 531 for supplementation.

[0028] In an alternative embodiment of the present embodiment, a directional drive rail 46 is provided outside the instantaneous compensation storage pipe 44. The directional drive rail 46 is signal-connected to the slurry conveying mechanism 3. The output end of the directional drive rail 46 is fixedly connected to an outer sleeve clamping ring 532, and the other end of the outer sleeve clamping ring 532 is fixedly connected to the middle-through flow guiding pipe fitting 53.

[0029] In this embodiment, when the outer sleeve clamping ring 532 drives the middle-through flow guiding pipe fitting 53 to move along the inside of the sliding path limiting seat 51 under the drive of the directional drive rail 46, the folding and sealing leather cavity 52 will synchronously generate a folding movement along with the traction of the middle-through flow guiding pipe fitting 53. At the same time, since the middle-through flow guiding pipe fitting 53 and the double-chamber connecting pipe fitting 54 are connected through the corrugated connecting pipe fitting 531, the corrugated connecting pipe fitting 531 can adapt to telescopic extension when the middle-through flow guiding pipe fitting 53 moves, thereby maintaining the connection and sealing between the middle-through flow guiding pipe fitting 53 and the double-chamber connecting pipe fitting 54. When the compensation power actuator 45 receives the signal of increased slurry output from the slurry conveying mechanism 3 and starts, and fills the slurry inside the instantaneous compensation storage pipe 44 into the inside of the auxiliary heat conduction pipeline 42, the directional drive rail 46 controls the middle-through flow guiding pipe fitting 53 to rise longitudinally along the instantaneous compensation storage pipe 44 with the start time of the compensation power actuator 45 filling, so that the cavity piston 441 synchronously compresses the space inside the instantaneous compensation storage pipe 44, ensuring that the compensated slurry stored inside the instantaneous compensation storage pipe 44 stably passes through the middle-through flow guiding pipe fitting 53 and the double-chamber connecting pipe fitting 54 and is input into the inside of the auxiliary heat conduction pipeline 42, ensuring the smoothness during compensation. At the same time, through the setting of the folding and sealing leather cavity 52 and the corrugated connecting pipe fitting 531, the corrugated connecting pipe fitting 531 and the middle-through flow guiding pipe fitting 53 can maintain the overall sealing of the instantaneous compensation storage pipe 44 while moving upward during the compression action. Among them, the compensation power actuator 45 is also provided with a time control sensor, and the time control sensor is used to set the single filling duration after the compensation power actuator 45 receives the signal of the flow rate sensor in the slurry conveying mechanism 3 and starts. In this embodiment, the filling start duration of the compensation power actuator 45 set by the time control sensor is 1 s.

[0030] In an alternative embodiment of the present embodiment, a single-pass solenoid valve 412 is provided inside the three-way conveying seat 41. The single-pass solenoid valve 412 is signal-connected to the slurry conveying mechanism 3, and the output end of the single-pass solenoid valve 412 is fixedly connected to the instantaneous compensation storage pipe 44.

[0031] The working principle of the present invention is as follows: When constructing the conventional structural surface of the double-headed extrusion assembly 4, the cavity piston 441 is located at the inner bottom of the instantaneous compensation storage pipe 44, and the one-way solenoid valve 412 is turned on to keep the two-way conduction pipe 411 in a three-way open state. At this time, the ceramic slurry input by the slurry conveying mechanism 3 is extruded from the inner side of the cavity formed by the two-way conduction pipe 411, the auxiliary heat conduction pipeline 42, and the arc-shaped extrusion end 43, and at the same time, the ceramic slurry for subsequent compensation is stored in the inner cavity of the instantaneous compensation storage pipe 44. After the storage, the signal transmission controller in the main chassis 1 closes the one-way solenoid valve 412 to adjust the two-way conduction pipe 411 to a two-way state, and only the auxiliary heat conduction pipeline 42 and the arc-shaped extrusion end 43 act on the extrusion of the ceramic slurry. When the structural area span between the upper and lower levels of the model is too large and it is necessary to quickly increase the speed at which the slurry conveying mechanism 3 outputs the slurry to the three-way guiding seat 41, the flow velocity sensor set in the slurry conveying mechanism 3 obtains this information, and sends a start signal to the compensation power actuator 45 through the signal transmission controller in the main chassis 1. After the compensation power actuator 45 is synchronously started, the slurry inside the instantaneous compensation storage pipe 44 is compensated through the connection of the middle-through diversion pipe fitting 53 and the double-chamber connection pipe fitting 54 into the auxiliary heat conduction pipeline 42, filling the instantaneous missing amount of the slurry output by the three-way guiding seat 41 to the auxiliary heat conduction pipeline 42 and the arc-shaped extrusion end 43 when the output slurry speed increases, ensuring the stability of the diameter of the wire instantaneously extruded by the arc-shaped extrusion end 43 when the output slurry speed increases, and thus ensuring the forming quality. Until the flow velocity sensor in the slurry conveying mechanism 3 obtains that the printing speed has decreased again, the signal transmission controller set in the main chassis 1 obtains this information, controls the one-way solenoid valve 412 to be reopened and in a conductive state through the signal transmission controller, and sends a return signal to the directional drive rail 46, so that the directional drive rail 46 drives the outer sleeved clamping ring 532 to drive the middle-through diversion pipe fitting 53 to slide downward along the sliding path limiting seat 51, so that the middle-through diversion pipe fitting 53 drives the cavity piston 441 to slide to the inner bottom of the instantaneous compensation storage pipe 44, and the storage space inside the instantaneous compensation storage pipe 44 is reserved again. After that, the slurry can be stored again according to the above process for the next compensation.

[0032] The above has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extrusion molding device for ceramic 3D printing, comprising a main box (1), a printing path driving track (2) and a slurry conveying mechanism (3), characterized in that: The printing path driving track (2) and the slurry conveying mechanism (3) are both arranged on the inner side of the main housing (1); the output end of the slurry conveying mechanism (3) is connected to a double-head extrusion component (4); the double-head extrusion component (4) is used to extrude the ceramic slurry along the double cavities; a speed regulation missing amount supplement component (5) is installed on the inner side of the double-head extrusion component (4); the speed regulation missing amount supplement component (5) is used to compensate for the single filament diameter of the slurry extruded by the double-head extrusion component (4) after the printing speed increases; The double-head extrusion assembly (4) comprises a three-way guide seat (41), an auxiliary heat conduction pipeline (42), an arc-shaped extrusion end head (43) and an instantaneous compensation storage pipe (44); the bottom of the three-way guide seat (41) is fixedly connected to a compensation power actuator (45); a two-way guide pipe (411) is fixedly connected between the three-way guide seat (41) and the auxiliary heat conduction pipeline (42); the arc-shaped extrusion end head (43) is fixedly connected to the bottom of the auxiliary heat conduction pipeline (42) and is in conduction with the auxiliary heat conduction pipeline (42); the instantaneous compensation storage pipe (44) is fixedly connected to the bottom of the three-way guide seat (41); the speed regulation missing amount supplement assembly (5) comprises a sliding path limiting seat (51), a folding sealing bellows (52), a middle-through flow guide pipe (53) and a double The cavity connecting pipe (54) is provided with the sliding path limiting seat (51) on the outer side of the instantaneous compensation storage tube (44), the folding sealing leather cavity (52) is fixedly connected to the inner side of the sliding path limiting seat (51), the central flow guiding pipe (53) is fixedly connected to the folding sealing leather cavity (52), and one end of the central flow guiding pipe (53) passes through the folding sealing leather cavity (52) and extends to the inner side of the instantaneous compensation storage tube (44), and a corrugated connecting pipe (531) is fixedly connected between the central flow guiding pipe (53) and the double cavity connecting pipe (54), and the corrugated connecting pipe (531) is used to connect the compensation channel formed by the instantaneous compensation storage tube (44), the central flow guiding pipe (53) and the double cavity connecting pipe (54); The output end of the compensation power actuator (45) is fixedly connected to the instantaneous compensation storage tube (44) and extends into a mounting groove (442) installed inside the instantaneous compensation storage tube (44). An inner cavity piston (441) is slidably connected to the inner side of the instantaneous compensation storage tube (44). One end of the inner cavity piston (441) is fixedly connected to the outer wall of the central flow guide pipe (53).

2. The extrusion molding device for ceramic 3D printing according to claim 1, characterized in that: The input end of the three-way guide seat (41) is fixedly connected to the output end of the slurry conveying mechanism (3), and the slurry conveying mechanism (3) extrude the slurry along the arc extrusion end (43) through an extrusion channel formed by the three-way guide seat (41), the two-way guide pipe (411) and the auxiliary heat conduction pipeline (42).

3. The extrusion molding device for ceramic 3D printing according to claim 2, characterized in that: A directional drive rail (46) is arranged on the outside of the instantaneous compensation storage pipe (44), the directional drive rail (46) is connected to the slurry conveying mechanism (3) by signal, an outer sleeve clamping ring (532) is fixedly connected to the output end of the directional drive rail (46), and the other end of the outer sleeve clamping ring (532) is fixedly connected to the central flow guide pipe (53).

4. The extrusion molding device for ceramic 3D printing according to claim 3, characterized in that: A single-way solenoid valve (412) is provided inside the three-way guide seat (41), the single-way solenoid valve (412) is signal-connected to the slurry conveying mechanism (3), and the output end of the single-way solenoid valve (412) is fixedly connected to the instantaneous compensation storage pipe (44).

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