Extrusion molding device for ceramic 3D printing

Abstract

The invention relates to the technical field of ceramic material forming, and particularly discloses an extrusion forming device for ceramic 3D printing, which comprises a main case, a printing path driving track and a slurry conveying mechanism, and the printing path driving track and the slurry conveying mechanism are both arranged on the inner side of the main case. The output end of the slurry conveying mechanism is connected with a double-end extrusion assembly; when the speed of the slurry conveying mechanism for outputting the slurry to the three-way guiding and conveying seat needs to be rapidly increased, the compensation power executing mechanism is synchronously started to enable the slurry on the inner side of the instantaneous compensation storage pipe to enter the auxiliary heat conduction pipeline through communication compensation of the middle-through flow guide pipe fitting and the double-cavity communication pipe fitting; and the instantaneous missing amount of the slurry output from the three-way guide seat to the auxiliary heating conduction pipeline and the arc extrusion end ensures that the diameter of an instantaneous extrusion wire of the arc extrusion end is stable when the slurry output speed is increased, so that the forming quality is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic material molding, in particular to an extrusion molding device for ceramic 3D printing. Background Art

[0002] In the process of building models with ceramics as 3D printing materials, if the structural area span of the upper and lower levels of the model is too large, and the bottom level is not enough to support the subsequent gradually superimposed level surfaces, as the printing speed increases, the roughness of the surfaces on both sides of the blank will also increase with the increase in printing speed. Affected by this influence, the extrusion head cavity is more likely to increase the extrusion pressure due to the instantaneous increase in printing speed requirements. The occurrence of this situation will directly cause a decrease in the instantaneous extrusion volume, causing the diameter of the extruded wire output of this segment to decrease abnormally, and at the same time causing the drying rate of the extruded wire to accelerate, resulting in the ceramic slurry after extrusion. The problem of the depth of the layer pattern on the side of the blank cannot be reduced by its own castability. Therefore, when printing a model body with a large structural area span of the upper and lower levels, it is more likely to cause the bonding force between the layers to fail to meet the molding requirements, reducing the overall mechanical properties of the ceramic model blank after sintering, resulting in a decrease in the support of the ceramic blank during superposition molding. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides an extrusion molding device for ceramic 3D printing. The technical solution adopted by the present invention to solve its technical problems is: an extrusion molding device for ceramic 3D printing, including a main box, a printing path driving track and a slurry conveying mechanism, the printing path driving track and the slurry conveying mechanism are both arranged on the inner side of the main box, the output end of the slurry conveying mechanism is connected to a double-head extrusion component, the double-head extrusion component is used to extrude the ceramic slurry along a double cavity, a speed regulation missing amount supplement component is installed on the inner side of the double-head extrusion component, the speed regulation missing amount supplement component is used to adapt to compensate for the single filament diameter of the slurry extruded by the double-head extrusion component after the printing speed increases.

[0004] The double-head extrusion assembly includes a three-way guide seat, an auxiliary heat conduction pipeline, an arc extrusion end and an instantaneous compensation storage pipe. The bottom of the three-way guide seat is fixedly connected with a compensation power actuator, and a two-way guide pipe is fixedly connected between the three-way guide seat and the auxiliary heat conduction pipeline. The arc extrusion end is fixedly connected to the bottom of the auxiliary heat conduction pipeline and is in conduction with the auxiliary heat conduction pipeline. The instantaneous compensation storage pipe is fixedly connected to the bottom of the three-way guide seat. The speed regulation missing amount supplement component includes a sliding path limiting seat, a folding sealing leather cavity, a middle-through guide pipe and a double-cavity connection. The through pipe fitting, the sliding path limiting seat is arranged on the outer side of the transient compensation storage tube, the folding sealing leather chamber is fixedly connected to the inner side of the sliding path limiting seat, the central flow guide pipe fitting is fixedly connected to the folding sealing leather chamber, and one end of the central flow guide pipe fitting passes through the folding sealing leather chamber and extends to the inner side of the transient compensation storage tube, and a corrugated connecting pipe fitting is fixedly connected between the central flow guide pipe fitting and the double-cavity connecting pipe fitting, and the corrugated connecting pipe fitting is used to connect the compensation channel formed by the transient compensation storage tube, the central flow guide pipe fitting and the double-cavity connecting pipe fitting.

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

[0006] Preferably, a compensation power actuator is provided on one side of the three-way guide seat, the output end of the compensation power actuator is fixedly connected to the instantaneous compensation storage tube and extends into an assembly groove installed on the inner side of the instantaneous compensation storage tube, and an intra-cavity piston is slidably connected to the inner side of the instantaneous compensation storage tube, and one end of the intra-cavity piston is fixedly connected to the outer wall of the central guide pipe.

[0007] Preferably, a directional drive rail is provided on the outer side of the instantaneous compensation storage pipe, the directional drive rail is connected to the slurry conveying mechanism signal, the output end of the directional drive rail is fixedly connected to an outer sleeve clamp ring, and the other end of the outer sleeve clamp ring is fixedly connected to the central guide pipe.

[0008] Preferably, a one-way solenoid valve is provided inside the three-way guide seat, the one-way solenoid valve is signal-connected to the slurry conveying mechanism, and 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 present invention has the following beneficial effects:

[0010] 1. When the double-head extrusion component constructs the conventional structural surface of the model, the single-way solenoid valve is opened to keep the three-way guide seat in a three-way state, so that the slurry conveying mechanism can inject the subsequent ceramic slurry used for compensation into the inner cavity of the instantaneous compensation storage tube. When the structural area span of 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 the slurry to the three-way guide seat, the compensation power actuator is synchronously started to pass the slurry inside the instantaneous compensation storage tube through the middle-through guide pipe and the double-cavity connecting pipe to the auxiliary heat conduction pipeline to make up for the instantaneous missing amount of slurry output by the three-way guide seat to the auxiliary heat conduction pipeline and the arc extrusion end when the output slurry speed increases, ensuring that the diameter of the instantaneous extruded wire at the arc extrusion end is stable when the output slurry speed increases, thereby ensuring the molding quality.

[0011] 2. When the compensation power actuator receives the slurry increase signal output by the slurry conveying mechanism and starts to replenish the slurry inside the instantaneous compensation storage pipe into the inner side of the auxiliary heat conduction pipeline, the directional drive rail controls the middle-through guide pipe to rise longitudinally along the instantaneous compensation storage pipe as the compensation power actuator replenishes the starting time, so that the piston in the cavity synchronously compresses the space inside the instantaneous compensation storage pipe, ensuring that the compensation slurry stored in the instantaneous compensation storage pipe is stably input to the inner side of the auxiliary heat conduction pipeline through the middle-through guide pipe and the double-cavity connecting pipe, ensuring smoothness during compensation. At the same time, through the setting of the folding sealing leather cavity and the corrugated connecting pipe, the corrugated connecting pipe and the middle-through guide pipe can maintain the overall sealing of the instantaneous compensation storage pipe while the compression action moves up. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0014] Figure 2 The present invention is a schematic structural diagram of a double-head extrusion component and a speed-regulating missing amount filling component in an extrusion molding device for ceramic 3D printing.

[0015] Figure 3 The present invention is a cross-sectional view of a double-head extrusion component and a speed regulation missing amount filling component in an extrusion molding device for ceramic 3D printing.

[0016] Figure 4 The present invention is a front view of a double-head extrusion component and a speed regulation missing amount filling component in an extrusion molding device for ceramic 3D printing.

[0017] In the figure: 1. Main chassis; 2. Print path driving track; 3. Slurry conveying mechanism; 4. Double-head extrusion assembly; 41. Three-way guide seat; 411. Two-way guide pipe; 412. Single-way solenoid valve; 42. Auxiliary heat conduction pipeline; 43. Arc extrusion end; 44. Instantaneous compensation storage pipe; 441. Intracavity piston; 442. Assembly groove; 45. Compensation power actuator; 46. Directional drive rail; 5. Speed ​​regulation missing amount filling assembly; 51. Sliding path limiting seat; 52. Folding sealing leather cavity; 53. Central guide pipe fittings; 531. Corrugated connecting pipe fittings; 532. External sleeve clamping ring; 54. Double-cavity connecting pipe fittings. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] like Figure 1-Figure 4 As shown, an extrusion molding device for ceramic 3D printing described in the present invention includes a main box 1, a printing path driving track 2 and a slurry conveying mechanism 3, the printing path driving track 2 and the slurry conveying mechanism 3 are both arranged on the inner side of the main box 1, and 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 a double cavity, and a speed regulation missing amount supplement component 5 is installed on the inner side of the double-head extrusion component 4, and the speed regulation missing amount supplement component 5 is used to adapt to and compensate for the single filament diameter of the slurry extruded by the double-head extrusion component 4 after the printing speed increases.

[0020] In this embodiment, in order to solve the problem that the structural area span of the upper and lower levels of the model is too large, and the bottom level is not enough to support the subsequent gradually stacked level surfaces after being formed, the extrusion air pressure inside the printed extruder head cavity is more likely to increase due to the instantaneous increase in printing speed requirements, causing the diameter of the extruded wire output by this segment to decrease abnormally, and at the same time causing the drying rate of the extruded wire to accelerate. The present invention uses a double-head extrusion component 4 and a speed regulation missing amount supplement component 5 to timely compensate for the missing amount of ceramic slurry caused by the instantaneous increase in printing speed requirements, so as to solve this problem.

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

[0022] In this embodiment, the main box 1 is also 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 transmitting 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 the flow rate increase, the debugging command is sent to the compensation power actuator 45 and the directional drive rail 46 through the signal transmission controller.

[0023] In an optional implementation manner of this embodiment, the double-head extrusion component 4 includes a three-way guide seat 41, an auxiliary heat conduction pipeline 42, an arc extrusion end 43 and an instantaneous compensation storage pipe 44, the bottom of the three-way guide seat 41 is fixedly connected with 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 extrusion end 43 is fixedly connected to the bottom of the auxiliary heat conduction pipeline 42 and is conductive 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, and the speed regulation missing amount supplement component 5 includes a sliding path limiting seat 51, a folding sealing leather cavity 52, The central flow guide pipe fitting 53 and the double-cavity connecting pipe fitting 54, the sliding path limiting seat 51 are arranged on the outside of the transient compensation storage tube 44, the folding sealing leather chamber 52 is fixedly connected to the inner side of the sliding path limiting seat 51, the central flow guide pipe fitting 53 is fixedly connected to the folding sealing leather chamber 52, and one end of the central flow guide pipe fitting 53 passes through the folding sealing leather chamber 52 and extends to the inner side of the transient compensation storage tube 44, and a corrugated connecting pipe fitting 531 is fixedly connected between the central flow guide pipe fitting 53 and the double-cavity connecting pipe fitting 54, and the corrugated connecting pipe fitting 531 is used to connect the compensation channel formed by the transient compensation storage tube 44, the central flow guide pipe fitting 53 and the double-cavity connecting pipe fitting 54.

[0024] In an optional implementation 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, and the slurry conveying mechanism 3 extrude the slurry along the arc through the extrusion channel formed by the three-way guide seat 41, the two-way guide pipe 411 and the auxiliary heat conduction pipeline 42. The inner side of the auxiliary heat conduction pipeline 42 is heated by filling an electric heating wire to maintain the temperature of the slurry during conveying.

[0025] In this embodiment, when the double-head extrusion assembly 4 constructs the conventional structural surface of the model, the piston 441 in the cavity is located at the inner bottom of the instantaneous compensation storage tube 44, and the one-way solenoid valve 412 is turned on to keep the two-way conducting tube 411 in a three-way open state. At this time, the ceramic slurry input by the slurry conveying mechanism 3 is extruded through the inner side of the cavity formed by the two-way conducting tube 411, the auxiliary heat conducting pipeline 42 and the arc extrusion end 43. During the extrusion process, part of the ceramic slurry input by the slurry conveying mechanism 3 is filled into the inner side of the instantaneous compensation storage tube 44, and is simultaneously injected into the inner side of the auxiliary heat conduction pipeline 42 through the flow channel formed by the instantaneous compensation storage tube 44, the middle-through flow guide pipe 53 and the double-cavity connecting pipe 54, and then during the slurry conveying process, the inner cavity of the instantaneous compensation storage tube 44 is kept to retain the ceramic slurry used for subsequent compensation. After the instantaneous compensation storage tube 44 is filled with the ceramic slurry used for compensation, the one-way solenoid valve 412 is closed so that the three-way guide seat 41 can only output the ceramic slurry to the two-way guide pipe 411, and then the three-way guide seat 41 is adjusted to the two-way state. In the current state, only the auxiliary heat conduction pipeline 42 and the arc extrusion end 43 act on the extrusion of the ceramic slurry. The instantaneous compensation storage pipe 44 is closed and kept in a blocked state by the one-way solenoid valve 412, and the slurry used to compensate for the loss is intercepted to the inside of the instantaneous compensation storage pipe 44. When the structural area span of the upper and lower levels of the model is too large and it is necessary to quickly increase the speed of the slurry delivery mechanism 3 to output the slurry to the three-way guide seat 41, the compensation power actuator 45 is synchronously started to connect the slurry inside the instantaneous compensation storage pipe 44 through the middle-through guide pipe 53 and the double-cavity connecting pipe 54 to the auxiliary heat conduction pipeline 42 for compensation, so as to make up for the instantaneous missing amount of slurry output by the three-way guide seat 41 to the auxiliary heat conduction pipeline 42 and the arc extrusion end 43 when the output slurry speed increases, so as to ensure that the diameter of the instantaneous extruded wire from the arc extrusion end 43 is stable when the output slurry speed increases.

[0026] In an optional implementation of the present embodiment, a compensation power actuator 45 is provided on one side of the three-way guide seat 41, and the output end of the compensation power actuator 45 is fixedly connected to the instantaneous compensation storage tube 44 and extends to the assembly groove 442 installed on the inner side of the instantaneous compensation storage tube 44, and an intracavity piston 441 is slidably connected to the inner side of the instantaneous compensation storage tube 44, and one end of the intracavity piston 441 is fixedly connected to the outer wall of the central guide pipe 53.

[0027] In this embodiment, the compensating power actuator 45 selects a pressurized feeder with the same power as the slurry conveying mechanism 3. When the compensating power actuator 45 needs to quickly increase the speed at which the slurry conveying mechanism outputs the slurry to the three-way guide seat 41, the compensating power actuator 45 will instantly compensate for the slurry intercepted in the storage pipe 44 and transfer it to the inside of the auxiliary heat conduction pipeline 42 through the middle guide pipe 53 and the corrugated connecting pipe 531 for replenishment.

[0028] In an optional implementation of the present embodiment, a directional drive rail 46 is provided on the outer side of the instantaneous compensation storage pipe 44, and the directional drive rail 46 is connected to the slurry conveying mechanism 3 by signal. 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 central guide pipe 53.

[0029] In this embodiment, when the outer sleeve clamping ring 532 is driven by the directional driving rail 46 to drive the central flow guide pipe 53 to move along the inner side of the sliding path limiting seat 51, the folding sealing leather chamber 52 will synchronously produce a folding movement with the traction of the central flow guide pipe 53. At the same time, since the central flow guide pipe 53 and the double-cavity connecting pipe 54 are connected by the corrugated connecting pipe 531, the corrugated connecting pipe 531 can adapt to the expansion and contraction when the central flow guide pipe 53 moves, thereby maintaining the connection and seal between the central flow guide pipe 53 and the double-cavity connecting pipe 54. When the compensation power actuator 45 receives the slurry increase signal output by the slurry conveying mechanism 3 and starts, and replenishes the slurry inside the instantaneous compensation storage pipe 44 into the inner side of the auxiliary heat conduction pipeline 42, the directional drive rail 46 controls the middle-through flow guide pipe 53 to rise longitudinally along the instantaneous compensation storage pipe 44 according to the replenishment start time of the compensation power actuator 45, so that the piston 441 in the cavity synchronously compresses the space inside the instantaneous compensation storage pipe 44, ensuring that the compensation slurry stored in the instantaneous compensation storage pipe 44 is stably input to the inner side of the auxiliary heat conduction pipeline 42 through the middle-through flow guide pipe 53 and the double-cavity connecting pipe 54, ensuring smoothness during compensation, and at the same time, through the setting of the folding sealing leather cavity 52 and the corrugated connecting pipe 531, the corrugated connecting pipe 531 and the middle-through flow guide pipe 53 can maintain the overall sealing of the instantaneous compensation storage pipe 44 while moving upward during the compression action. Among them, the compensating power actuator 45 is also provided with a timing sensor, which is used to set the single replenishment duration after the compensating power actuator 45 receives the flow rate sensor signal in the slurry conveying mechanism 3 and starts. In this embodiment, the compensation power actuator 45 replenishment start-up duration set by the timing sensor is 1s.

[0030] In an optional implementation of this embodiment, a one-way solenoid valve 412 is provided inside the three-way guide seat 41 , the one-way solenoid valve 412 is signal-connected to the slurry conveying mechanism 3 , and the output end of the one-way solenoid valve 412 is fixedly connected to the instantaneous compensation storage pipe 44 .

[0031] The working principle of the present invention is: when the double-head extrusion component 4 constructs the conventional structural surface of the model, the piston 441 in the cavity is located at the inner bottom of the instantaneous compensation storage tube 44, and the one-way solenoid valve 412 is turned on to keep the two-way guide tube 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 guide tube 411, the auxiliary heat conduction pipeline 42 and the arc extrusion end 43, and at the same time, the ceramic slurry used for subsequent compensation is accumulated in the inner cavity of the instantaneous compensation storage tube 44. After the accumulation, the signal transmission controller in the main box 1 closes the one-way solenoid valve 412 to adjust the two-way guide tube 411 to a two-way state, and only the auxiliary heat conduction pipeline 42 and the arc extrusion end 43 act on the extrusion of the ceramic slurry. When the structural area span of 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 guide seat 41, the flow rate sensor set in the slurry conveying mechanism 3 obtains the information, and sends a start signal to the compensation power actuator 45 through the signal transmission controller in the main box 1. After the compensation power actuator 45 is started synchronously, the slurry inside the instantaneous compensation storage pipe 44 is connected and compensated by the middle-through flow guide pipe 53 and the double-cavity connecting pipe 54 to the auxiliary heat conduction pipeline 42, so as to make up for the instantaneous missing amount of slurry output by the three-way guide seat 41 to the auxiliary heat conduction pipeline 42 and the arc extrusion end 43 when the output slurry speed increases, so as to ensure that the diameter of the instantaneous extruded wire of the arc extrusion end 43 is stable when the output slurry speed increases, thereby ensuring the molding quality. Until the flow rate sensor in the slurry conveying mechanism 3 obtains that the printing speed has been reduced again, the signal transmission controller set in the main box 1 obtains this information, controls the one-way solenoid valve 412 to be reopened and in a conducting 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 sleeve clamping ring 532 to drive the central guide pipe 53 to slide downward along the sliding path limiting seat 51, so that the central guide pipe 53 drives the piston 441 in the cavity to slide to the bottom of the inner side of the instantaneous compensation storage tube 44, and re-reserve the storage space inside the instantaneous compensation storage tube 44, and then the slurry can be re-stored according to the above process for the next compensation.

[0032] The above shows and describes 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 to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached 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 extrusion end head (43) and an instantaneous compensation storage pipe (44); the bottom of the three-way guide seat (41) is fixedly connected with 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 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 invention relates to a cavity connecting pipe fitting (54), wherein the sliding path limiting seat (51) is arranged on the outer side of the transient 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 fitting (53) is fixedly connected to the folding sealing leather cavity (52), and one end of the central flow guiding pipe fitting (53) passes through the folding sealing leather cavity (52) and extends to the inner side of the transient compensation storage tube (44), and a corrugated connecting pipe fitting (531) is fixedly connected between the central flow guiding pipe fitting (53) and the double cavity connecting pipe fitting (54), and the corrugated connecting pipe fitting (531) is used to connect the compensation channel formed by the transient compensation storage tube (44), the central flow guiding pipe fitting (53) and the double cavity connecting pipe fitting (54).

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 the 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 compensating power actuator (45) is provided on one side of the three-way guide seat (41); an output end of the compensating power actuator (45) is fixedly connected to the instantaneous compensation storage pipe (44) and extends into an assembly groove (442) installed inside the instantaneous compensation storage pipe (44); an inner cavity piston (441) is slidably connected to the inner side of the instantaneous compensation storage pipe (44); one end of the inner cavity piston (441) is fixedly connected to the outer wall of the central flow guide pipe (53).

4. The extrusion molding device for ceramic 3D printing according to claim 3, characterized in that: A directional drive rail (46) is arranged on the outer side of the instantaneous compensation storage pipe (44), and the directional drive rail (46) is connected to the slurry conveying mechanism (3) by signal. 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 central flow guide pipe (53).

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

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