CN222571108U

CN222571108U - A slurry conveying device for silicon carbide ceramic printing

Info

Publication number: CN222571108U
Application number: CN202420565136.6U
Authority: CN
Inventors: 薛振坤; 田燕青; 杜先
Original assignee: Chengdu Volken Semiconductor Materials Co ltd
Current assignee: Chengdu Volken Semiconductor Materials Co ltd
Priority date: 2024-03-22
Filing date: 2024-03-22
Publication date: 2025-03-07
Anticipated expiration: 2034-03-22

Abstract

The utility model relates to the technical field of printing and forming equipment, and particularly discloses a slurry conveying device for printing silicon carbide ceramics, which comprises a tank body, a printer, a pipe fitting, a rotating shaft, a stirring rod, a storage part, a circulating channel, a conveying pump and a driving motor, wherein one end of the pipe fitting is communicated with the tank body, the other end of the pipe fitting is communicated with the printer, the rotating shaft is rotatably arranged 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 storage part is used for storing heat preservation media, the circulating channel is arranged in the rotating shaft and the stirring rod and is communicated with the storage part for the heat preservation media to flow, the conveying pump is used for conveying the heat preservation media into the circulating channel, and the driving motor is used for driving the rotating shaft to rotate. By using the utility model, the slurry can be stirred and heat is transmitted in the slurry, so that the slurry is prevented from being heated unevenly, the slurry conveying efficiency is ensured, and the pipe fitting is prevented from being blocked.

Description

Slurry conveying device for printing silicon carbide ceramics

Technical Field

The utility model relates to the technical field of printing and forming equipment, in particular to a slurry conveying device for printing silicon carbide ceramics.

Background

The 3D printing technology can automatically, quickly, directly and accurately convert a design model in a computer into a physical model, and can even directly manufacture parts or dies, thereby effectively shortening the processing period and improving the product quality.

The silicon carbide powder is a common raw material for ceramic 3D printing, and before ceramic printing, the silicon carbide powder is firstly required to be proportioned into slurry, and then the slurry is conveyed into a printer and extruded and molded through a nozzle arranged in the printer.

In the prior art, the slurry is usually stored in a tank body, and the outer wall of the tank body is provided with a resistance wire for heating, so that the tank body is insulated to prevent the slurry in the tank body from solidifying, but in the mode, the slurry close to the wall surface of the tank body is heated at a higher temperature, the slurry in the center of the tank body is heated at a lower temperature, the slurry is heated unevenly easily, the slurry is solidified, the normal conveying of the slurry is easily influenced, and even a pipe fitting is blocked.

Disclosure of utility model

In view of the above problems, the present utility model provides a slurry transporting device for silicon carbide ceramic printing, which aims to prevent slurry from solidifying and ensure slurry transporting efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The slurry conveying device for printing of the silicon carbide ceramics comprises a tank body, a printer, a pipe fitting, a rotating shaft, a stirring rod, a storage part, a circulating channel, a conveying pump and a driving motor, wherein one end of the pipe fitting is communicated with the tank body, the other end of the pipe fitting is communicated with the printer, the rotating shaft is rotatably arranged 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 storage part is used for storing heat preservation media, the circulating channel is arranged in the rotating shaft and the stirring rod and is communicated with the storage part for the heat preservation media to flow, the conveying pump is used for conveying the heat preservation media into the circulating channel, and the driving motor is used for driving the rotating shaft to rotate.

Further, the device also comprises a connecting rod, one end of the connecting rod is connected with the rotating shaft, the other end of the connecting rod is connected with the stirring rod, and the stirring rod and the rotating shaft are installed in parallel.

The circulating channel further comprises a first channel, a second channel and a third channel, wherein the first channel is arranged in the rotating shaft, the second channel is arranged in the connecting rod, the third channel is arranged in the stirring rod, and one end of the second channel is communicated with the first channel, and the other end of the second channel is communicated with the third channel.

Further, the device also comprises a feeding pipe, one end of which is communicated with the delivery pump, and the other end of which is connected with the first channel; a discharging pipe is arranged on the upper end of the discharging pipe, one end is connected with the first channel, and the other end is communicated with the storage component.

Further, the device also comprises a helical blade which is arranged on the stirring rod and is positioned between the inner wall surface of the tank body and the outer wall surface of the stirring rod.

Further, the device also comprises a heat preservation pipe which is sleeved outside the pipe fitting and is communicated with the storage part and the delivery pump for heat preservation medium to flow.

The utility model has the beneficial effects that the slurry stirring device can stir the slurry and transmit heat in the slurry, prevent the slurry from being heated unevenly, ensure the slurry conveying efficiency and prevent the pipe fitting from being blocked.

Drawings

Fig. 1 is an overall installation schematic diagram of a conveying device according to an embodiment of the present application.

Fig. 2 is a schematic installation diagram of a rotating shaft and a stirring rod according to an embodiment of the present application.

Fig. 3 is an installation side view of a pipe fitting and a heat insulation pipe according to an embodiment of the present application.

The device comprises 11 parts of a tank body, 12 parts of a printer, 13 parts of a pipe fitting, 14 parts of a heat insulation pipe, 2 parts of a rotating shaft, 3 parts of a stirring rod, 31 parts of a spiral blade, 4 parts of a storage part, 5 parts of a conveying pump, 6 parts of a driving motor, 7 parts of a connecting rod, 81 parts of a first channel, 82 parts of a second channel, 83 parts of a third channel, 91 parts of a feeding pipe, 92 parts of a discharging pipe.

Detailed Description

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

Referring to fig. 1, the embodiment of the application discloses a slurry conveying device for printing silicon carbide ceramics, which comprises a tank 11, a printer 12 and a pipe fitting 13, wherein one end of the pipe fitting 13 is communicated with the tank 11, and the other end of the pipe fitting is communicated with the printer 12, and when in specific operation, a worker mixes silicon carbide powder for ceramic 3D printing into slurry according to the requirement and then stores the slurry in the tank 11.

The device comprises a rotating shaft 2 rotatably arranged in a tank body 11, a stirring rod 3 fixedly arranged on the rotating shaft 2 and extending towards the inner wall surface of the tank body 11, a storage part 4 for storing heat preservation media, a circulating channel arranged in the rotating shaft 2 and the stirring rod 3 and communicated with the storage part 4 for flowing the heat preservation media, a conveying pump 5 for conveying the heat preservation media into the circulating channel, and a driving motor 6 for driving the rotating shaft 2 to rotate.

According to the utility model, the rotation of the rotating shaft 2 and the stirring rod 3 can be driven by the rotation of the output shaft of the driving motor 6, so that the slurry stored in the tank 11 is continuously stirred, the slurry is prevented from being solidified, a circulation channel is arranged in the stirring rod 3 and the rotating shaft 2, a heat preservation medium is continuously injected into the circulation channel through the conveying pump 5, the slurry is ensured to be constant in temperature, the slurry is prevented from being solidified, and the slurry is stirred and conveyed in the slurry, so that the slurry is prevented from being heated unevenly, the normal conveying of the slurry is ensured, and the pipe fitting 13 is prevented from being blocked.

Specifically, the output shaft of the driving motor 6 is in transmission connection with the rotating shaft 2 through a gear.

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

Further, the device also comprises a connecting rod 7, one end of the connecting rod 7 is connected with the rotating shaft 2, the other end of the connecting rod is connected with the stirring rod 3, and the stirring rod 3 and the rotating shaft 2 are arranged in parallel.

In this embodiment, be provided with cylindric, be used for depositing the cavity of thick liquid in the discharging part, pivot 2 and cavity coaxial arrangement, a plurality of puddlers 3 set up on pivot 2 along the circumference array, effectively guarantee puddler 3's stirring scope, promote thermal insulation efficiency.

Referring to fig. 2, the circulation path includes a first path 81 formed in the rotation shaft 2, a second path 82 formed in the connection rod 7, a third path 83 formed in the stirring rod 3, and one end of the second path 82 communicates with the first path 81 and the other end communicates with the third path 83.

Further, the device also comprises a feed pipe 91, one end of which is communicated with the delivery pump 5 and the other end of which is connected with the first channel 81, and a discharge pipe 92, one end of which is connected with the first channel 81 and the other end of which is communicated with the storage part 4.

The heat preservation medium is conveyed to the feeding pipe 91 through the conveying pump 5, flows along the circulating channel under the pressure of the conveying pump 5 and then returns to the storage part 4 through the discharging pipe 92, so that the heat preservation medium can be recycled, the utilization rate of the residual heat of the heat preservation medium is improved, and the energy consumption is reduced.

Further, the device also comprises a spiral blade 31 which is arranged on the stirring rod 3 and is positioned between the inner wall surface of the tank body 11 and the outer wall surface of the stirring rod 3, and the driving motor 6 is used for driving the spiral blade 31 to rotate when the electric rotating shaft 2 rotates, so that the slurry in the tank body 11 is conveyed from bottom to top along the axial direction of the tank body 11, the slurry is driven to circularly flow in the tank body 11, the heat transfer rate of the slurry is improved, the slurry is heated uniformly, the slurry is prevented from being solidified, and the slurry conveying efficiency is ensured.

The device further comprises a heat preservation pipe 14 sleeved outside the pipe fitting 13 and communicated with the storage part 4 and the delivery pump 5 for flowing of heat preservation media, and of course, the heat preservation pipe 14 is also communicated with the discharging pipe 92 and the feeding pipe 91, and the heat preservation media can be delivered into the heat preservation pipe 14 through the delivery pump 5 to preserve heat of the pipe fitting 13 and prevent solidification of slurry in the process of delivering the slurry to the printer 12.

It should be noted that in the present embodiment, the rotating shaft 2 is rotatably mounted on the tank 11 through a dynamic seal, and the feed pipe 91 and the discharge pipe 92 are also rotatably disposed on the rotating shaft 2 through dynamic seals, and it can be understood that the dynamic seal may be a packing seal or a labyrinth seal, and the dynamic seal technology is a well-known technology of those skilled in the art and will not be described herein.

It will be apparent to those skilled in the art that while preferred embodiments of the present utility model have been described, additional variations and modifications may be made to these embodiments once the basic inventive concepts are known to those skilled in the art. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model. It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A slurry conveying device for printing silicon carbide ceramics, 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), 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 heat preservation medium to flow;

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 is characterized in that it also includes: a connecting rod (7), one end of the connecting rod (7) is connected to the rotating shaft (2), and the other end 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 channel comprises:

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 it also includes: a feed pipe (91), one end of which is connected to the conveying pump (5) and the other end 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 is characterized in that it also includes a spiral blade (31) arranged on the stirring rod (3) and 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 is characterized in that it also includes: an insulation pipe (14), which is sleeved outside the pipe (13) and connects the material storage component (4) and the conveying pump (5) to provide insulation medium flow.