Slurry conveying device for silicon carbide ceramic printing

Abstract

The utility model relates to the technical field of printing forming equipment, in particular to a slurry conveying device for silicon carbide ceramic printing, which comprises a tank body, a printer and a pipe fitting, one end of the pipe fitting is communicated with the tank body, the other end of the pipe fitting is communicated with the printer, and the slurry conveying device further comprises a rotating shaft rotatably mounted in the tank body; the stirring rod is fixedly arranged on the rotating shaft and extends towards the inner wall surface of the tank body; the material storage part is used for storing a heat preservation medium; the circulating channel is formed in the rotating shaft and the stirring rod, communicates with the material storage component and allows the heat preservation medium to flow; the conveying pump is used for conveying the heat preservation medium into the circulating channel; the driving motor is used for driving the rotating shaft to rotate. By means of the slurry stirring device, slurry can be stirred and heat can be transmitted in the slurry, the slurry is prevented from being heated unevenly, the slurry conveying efficiency is guaranteed, and pipe fitting blockage is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of printing and molding equipment, in particular to a slurry conveying device for printing silicon carbide ceramics. Background Art

[0002] 3D printing technology can automatically, quickly, directly and accurately convert design models in computers into physical models, and can even directly manufacture parts or molds, thereby effectively shortening processing cycles and improving product quality.

[0003] Silicon carbide powder is a commonly used raw material for ceramic 3D printing. Before ceramic printing, the silicon carbide powder must first be mixed into a slurry, and then the slurry must be transported to the printer and extruded into shape through the printer's built-in nozzle.

[0004] In the prior art, the slurry is usually stored in a tank body, and a resistance wire is set on the outer wall of the tank body for heating to keep the tank body warm and prevent the slurry in the tank body from solidifying. However, in this way, the slurry near the wall of the tank body is heated to a higher temperature, while the slurry at the center of the tank body is heated to a lower temperature, which can easily lead to uneven heating of the slurry, causing the slurry to solidify, easily affecting the normal transportation of the slurry, and even clogging the pipes. Utility Model Content

[0005] In view of the above problems, the utility model provides a slurry conveying device for silicon carbide ceramic printing, the purpose of which is to prevent the slurry from solidifying and ensure the slurry conveying efficiency.

[0006] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:

[0007] Provided is a slurry conveying device for silicon carbide ceramic printing, comprising: a tank body, a printer and a pipe fitting, wherein one end of the pipe fitting is connected to the tank body and the other end is connected to the printer, and the device further comprises: a rotating shaft rotatably mounted in the tank body; a stirring rod fixedly arranged on the rotating shaft and extending toward the inner wall surface of the tank body; a material storage component for storing a heat-insulating medium; a circulation channel opened in the rotating shaft and the stirring rod and connected to the material storage component for the heat-insulating medium to flow; a conveying pump for conveying the heat-insulating medium into the circulation channel; and a driving motor for driving the rotating shaft to rotate.

[0008] Furthermore, the device also includes: a connecting rod, one end of the connecting rod is connected to the rotating shaft, and the other end of the connecting rod is connected to the stirring rod, and the stirring rod and the rotating shaft are installed in parallel.

[0009] Furthermore, the circulation channel includes: a first channel, which is opened in the rotating shaft; a second channel, which is opened in the connecting rod; and a third channel, which is opened in the stirring rod; one end of the second channel is connected to the first channel, and the other end is connected to the third channel.

[0010] Furthermore, the device also includes: a feed pipe, one end of which is connected to the delivery pump and the other end is connected to the first channel; a discharge pipe, one end of which is connected to the first channel and the other end is connected to the storage component.

[0011] Furthermore, the device also includes a spiral blade, which is arranged on the stirring rod and is located between the inner wall surface of the tank body and the outer wall surface of the stirring rod.

[0012] Furthermore, the device also includes: a heat preservation pipe, which is sleeved outside the pipe fitting and connected to the material storage component and the delivery pump to allow the heat preservation medium to flow.

[0013] The beneficial effects of the utility model are as follows: by using the utility model, the slurry can be stirred and heat can be transferred inside it, thereby preventing the slurry from being heated unevenly, ensuring the slurry conveying efficiency, and preventing the pipe fittings from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall installation of the conveying device provided in an embodiment of the present application.

[0015] Figure 2 This is a schematic diagram of the installation of the rotating shaft and the stirring rod provided in an embodiment of the present application.

[0016] Figure 3 A side view of the installation of pipe fittings and insulation pipes provided in an embodiment of the present application.

[0017] Among them, 11, tank body; 12, printer; 13, pipe fittings; 14, insulation pipe; 2, rotating shaft; 3, stirring rod; 31, spiral blade; 4, storage component; 5, conveying pump; 6, driving motor; 7, connecting rod; 81, first channel; 82, second channel; 83, third channel; 91, feed pipe; 92, discharge pipe. DETAILED DESCRIPTION

[0018] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Reference Figure 1 As shown, an embodiment of the present application discloses a slurry conveying device for silicon carbide ceramic printing, comprising: a tank body 11, a printer 12 and a pipe 13, one end of the pipe 13 is connected to the tank body 11, and the other end is connected to the printer 12; during specific operations, the staff will mix the silicon carbide powder for ceramic 3D printing into slurry as required and store it in the tank body 11.

[0020] Specifically, the device also includes: a rotating shaft 2, which can be rotatably installed in the tank body 11; a stirring rod 3, which is fixedly arranged on the rotating shaft 2 and extends toward the inner wall surface of the tank body 11; a storage component 4, which is used to store a heat-insulating medium; a circulation channel, which is opened in the rotating shaft 2 and the stirring rod 3, connected to the storage component 4, for the heat-insulating medium to flow; a delivery pump 5, which is used to deliver the heat-insulating medium into the circulation channel; a drive motor 6, which is used to drive the rotating shaft 2 to rotate.

[0021] In the utility model, by driving the output shaft of the motor 6 to rotate, the rotating shaft 2 and the stirring rod 3 can be driven to rotate, so that the slurry stored in the tank body 11 is continuously stirred to prevent the slurry from solidifying; a circulation channel is provided in the stirring rod 3 and the rotating shaft 2, and a heat preservation medium is continuously injected into the circulation channel by the delivery pump 5, which can transfer heat to the slurry inside the slurry, ensure the constant temperature of the slurry, and prevent the slurry from solidifying; by using the utility model, the slurry can be stirred and heat can be transferred inside the slurry, the slurry can be prevented from being heated unevenly, the normal delivery of the slurry can be ensured, and the pipe 13 can be prevented from being blocked.

[0022] Specifically, the output shaft of the driving motor 6 is transmission-connected to the rotating shaft 2 via gears.

[0023] Specifically, liquid water is selected as the heat-insulating medium, and a resistance wire is arranged in the storage part 4 to heat the heat-insulating medium.

[0024] Furthermore, the device further comprises: a connecting rod 7 , one end of the connecting rod 7 is connected to the rotating shaft 2 , and the other end of the connecting rod 7 is connected to the stirring rod 3 , and the stirring rod 3 and the rotating shaft 2 are installed in parallel.

[0025] In this embodiment, a cylindrical cavity for storing slurry is provided in the discharge component, the rotating shaft 2 is coaxially installed with the cavity, and a plurality of stirring rods 3 are arranged on the rotating shaft 2 along a circular array, which effectively ensures the stirring range of the stirring rods 3 and improves the insulation efficiency.

[0026] Reference Figure 2 As shown, the circulation channel includes: a first channel 81, which is opened in the rotating shaft 2; a second channel 82, which is opened in the connecting rod 7; a third channel 83, which is opened in the stirring rod 3; one end of the second channel 82 is connected to the first channel 81, and the other end is connected to the third channel 83.

[0027] Furthermore, the device also includes: a feed pipe 91, one end of which is connected to the delivery pump 5 and the other end is connected to the first channel 81; a discharge pipe 92, one end of which is connected to the first channel 81 and the other end is connected to the storage component 4.

[0028] The insulation medium is delivered to the feed pipe 91 by the delivery pump 5. Under the pressure of the delivery pump 5, the insulation medium flows along the circulation channel and returns to the storage component 4 through the discharge pipe 92. The insulation medium can be recycled, thereby improving the utilization rate of the residual heat of the insulation medium and reducing energy consumption.

[0029] Furthermore, the device also includes a spiral blade 31, which is arranged on the stirring rod 3 and is located between the inner wall surface of the tank body 11 and the outer wall surface of the stirring rod 3; the driving motor 6 rotates the electric shaft 2, and can also drive the spiral blade 31 to rotate, so as to transport the slurry in the tank body 11 from bottom to top along the axial direction of the tank body 11, drive the slurry to circulate in the tank body 11, improve the heat transfer rate of the slurry, heat the slurry evenly, prevent the slurry from solidifying, and ensure the slurry transportation efficiency.

[0030] Reference Figure 3 As shown, the device also includes: an insulation pipe 14, which is sleeved outside the pipe 13 and connected to the storage component 4 and the delivery pump 5 for the flow of insulation medium; of course, the insulation pipe 14 is also connected to the discharge pipe 92 and the feed pipe 91. The insulation medium is delivered to the insulation pipe 14 by the delivery pump 5, which can insulate the pipe 13 and prevent the slurry from solidifying during the process of being delivered to the printer 12.

[0031] It is worth mentioning that in the present embodiment, the rotating shaft 2 is rotatably mounted on the tank body 11 through a dynamic seal, and the feed pipe 91 and the discharge pipe 92 are also rotatably arranged on the rotating shaft 2 through a dynamic seal; it can be understood that the dynamic seal can be a packing seal or a labyrinth seal, and the dynamic sealing technology is a well-known technology for those skilled in the art and will not be elaborated here.

[0032] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the equivalent technology of the claims of the present invention, the present invention is also intended to include these modifications and variations.

Claims

1. A slurry conveying device for silicon carbide ceramic printing, comprising: A tank body (11), a printer (12) and a pipe fitting (13), one end of the pipe fitting (13) is connected to the tank body (11), and the other end is connected to the printer (12), characterized in that it also includes: A rotating shaft (2) is rotatably mounted in the tank body (11); A stirring rod (3) is fixedly mounted on the rotating shaft (2) and extends toward the inner wall surface of the tank body (11); A material storage component (4), used for storing a heat-insulating medium; A circulation channel is provided in the rotating shaft (2) and the stirring rod (3), and is connected to the material storage component (4) for the flow of the heat preservation medium; A delivery pump (5) is used to deliver the heat-insulating medium into the circulation channel; The driving motor (6) is used to drive the rotating shaft (2) to rotate.

2. The slurry conveying device for silicon carbide ceramic printing according to claim 1, characterized in that: Also includes: A connecting rod (7) is provided, one end of which is connected to the rotating shaft (2) and the other end of which is connected to the stirring rod (3), and the stirring rod (3) and the rotating shaft (2) are installed in parallel.

3. The slurry conveying device for silicon carbide ceramic printing according to claim 2, characterized in that: The circulation channels include: A first channel (81) is provided in the rotating shaft (2); A second channel (82) is provided in the connecting rod (7); A third channel (83) is provided in the stirring rod (3); One end of the second channel (82) is connected to the first channel (81), and the other end is connected to the third channel (83).

4. The slurry conveying device for silicon carbide ceramic printing according to claim 3, characterized in that: Also includes: A feed pipe (91), one end of which is connected to the delivery pump (5) and the other end of which is connected to the first channel (81); The discharge pipe (92) has one end connected to the first channel (81) and the other end connected to the storage component (4).

5. The slurry conveying device for silicon carbide ceramic printing according to claim 2, characterized in that: It also includes a spiral blade (31) which is arranged on the stirring rod (3) and is located between the inner wall surface of the tank body (11) and the outer wall surface of the stirring rod (3).

6. The slurry conveying device for silicon carbide ceramic printing according to claim 1, characterized in that: Also includes: The heat preservation pipe (14) is sleeved outside the pipe fitting (13) and is connected to the material storage component (4) and the delivery pump (5) to allow the heat preservation medium to flow.

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