Liquid material feeding device for 3D printer

Abstract

The utility model belongs to the technical field of 3D printing, and particularly relates to a liquid material feeding device for a 3D printer, which comprises a printer body and a liquid storage tank fixedly connected to the upper surface of the printer body, one side of the upper surface of the liquid storage tank is fixedly connected with a liquid inlet pipe, and one side of the lower surface of the liquid storage tank is fixedly connected with a liquid outlet pipe. The liquid outlet pipe penetrates through the surface of the printer body, extends into the printer body and is connected with a liquid supply hose arranged in the printer body, and the printer further comprises a stirring assembly installed on the liquid storage box; the stirring assembly is arranged on the device, a user can force liquid to form convection and uniformly mix through the stirring assembly, so that the mixing effect can be improved, the mixing is more uniform, the sealing assembly is additionally arranged on the mechanism, the gear disc and the bevel gear can be positioned in a closed cavity, and the influence of dust erosion is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of 3D printing, and particularly relates to a liquid material feeding device for a 3D printer. Background Technique

[0002] 3D printing is a kind of rapid prototyping technology, also known as additive manufacturing. It is based on a digital model file and uses powdered metal, plastic and other bondable materials. Many materials are liquid materials before bonding and printing.

[0003] It is found that the publication (announcement) number: CN216579225, which discloses a liquid material quantitative feeding device for a 3D printer. The following technical solutions are disclosed in this technology: "including a 3D printer and a printing nozzle, the printing nozzle is internally provided with a supporting device in the 3D printer, and a storage mechanism and a metering mechanism are arranged in the 3D printer", etc. It has the technical effect of closing the electric valve by pressing the touch switch by the pressing plate to control the metering of the liquid raw material, avoiding unnecessary waste of the liquid raw material during printing, etc.;

[0004] However, the stirring method of the above device can only stir the liquid in one direction, and cannot make the liquid form convection and uniform mixing. Therefore, the stirring effect is not very good, and there may still be a problem of precipitation of the liquid raw material, which needs to be further improved to improve the mixing effect and make the mixing more uniform;

[0005] To solve the above problems, a liquid material feeding device for a 3D printer is proposed in this application. Content of the Utility Model

[0006] To solve the problems raised in the above background technique. The utility model provides a liquid material feeding device for a 3D printer, which can force the liquid to form convection and uniform mixing, thereby improving the mixing effect, making the mixing more uniform, and avoiding the problem of precipitation of liquid raw materials due to poor stirring and mixing effect.

[0007] To achieve the above object, the utility model provides the following technical solution: A liquid material feeding device for a 3D printer, including a printer body and a liquid storage tank fixedly connected to the upper surface of the printer body. One side of the upper surface of the liquid storage tank is fixedly connected with a liquid inlet pipe, and one side of the lower surface of the liquid storage tank is fixedly connected with a liquid outlet pipe. The liquid outlet pipe penetrates through the surface of the printer body and extends into the printer body, and is connected to a liquid supply hose arranged inside the printer body. It also includes a stirring component installed on the liquid storage tank;

[0008] The stirring assembly includes a fixed block fixedly connected to the upper surface of the liquid storage tank, a fixed frame fixedly connected to the upper surface of the fixed block, and a rotating rod disposed inside the fixed frame. Both ends of the rotating rod are rotatably connected to the fixed frame through bearings. One end of the rotating rod penetrates the surface of the fixed frame and extends to the outside of the fixed frame, and is connected to the motor transmission shaft disposed outside the fixed frame. A gear disc is fixedly connected to the outer side wall of the rotating rod. Conical gears are meshed and connected to both sides of the gear disc. The conical gears are rotatably connected to the fixed frame through bearings. A sleeve is fixedly connected to the lower surface of the conical gear. A stirring paddle is fixedly connected to the bottom end of the outer side wall of the sleeve.

[0009] As a preferred embodiment of the liquid material feeding device for a 3D printer of the present utility model, the stirring paddle is arranged in a spherical structure with a smaller upper part and a larger lower part.

[0010] As a preferred embodiment of the liquid material feeding device for a 3D printer of the present utility model, sawteeth are arranged at equal intervals on the stirring blades of the stirring paddle.

[0011] As a preferred embodiment of the liquid material feeding device for a 3D printer of the present utility model, the fixed frame is arranged in a triangular structure with a narrower upper part and a wider lower part.

[0012] As a preferred embodiment of the liquid material feeding device for a 3D printer of the present utility model, a U-shaped connecting rod is arranged below the stirring paddle. The connecting rod is fixedly connected to the bottom end of the inner side wall of the liquid storage tank. Both ends of the connecting rod penetrate the stirring paddles on both sides, and sequentially penetrate the sleeve, the fixed block and the conical gear, and extend above the conical gear, and are fixedly connected to a connecting block arranged above the conical gear. The connecting block is fixedly connected to the fixed frame.

[0013] As a preferred embodiment of the liquid material feeding device for a 3D printer of the present utility model, the conical gear, the sleeve and the stirring paddle are all arranged in an inclined shape.

[0014] As a preferred embodiment of the liquid material feeding device for a 3D printer of the present utility model, a sealing assembly is further included. The sealing assembly includes a first sealing cover fixedly connected to one side of the fixed frame and a second sealing cover fixedly connected to the other side of the fixed frame.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] A stirring assembly is provided on this device. Through this stirring assembly, users can force the liquid to form convection and be evenly mixed, thereby improving the mixing effect and making the mixing more uniform. In addition, a sealing assembly is added to this mechanism, which can keep the gear disc and the bevel gear in a closed cavity, thus avoiding the influence of dust erosion. Brief Description of the Drawings

[0017] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is a structural schematic diagram of the present utility model;

[0019] Figure 2 is a structural schematic diagram of the liquid storage tank, the liquid inlet pipe and the liquid outlet pipe in the present utility model;

[0020] Figure 3 is a structural schematic diagram of the stirring assembly in the present utility model;

[0021] Figure 4 is a structural schematic diagram of the bevel gear, the sleeve and the stirring paddle in the present utility model;

[0022] Figure 5 is a structural schematic diagram of the connecting block and the connecting rod in the present utility model;

[0023] Figure 6 is a structural schematic diagram of the first sealing cover in the present utility model.

[0024] In the drawings:

[0025] 1, printer body; 11, liquid storage tank; 12, liquid inlet pipe; 13, liquid outlet pipe;

[0026] 2, stirring assembly; 21, fixing block; 22, fixing frame; 23, rotating rod; 24, gear disc; 25, motor; 26, bevel gear; 27, sleeve; 28, stirring paddle; 29, connecting block; 210, connecting rod;

[0027] 3, sealing assembly; 31, first sealing cover; 32, second sealing cover. Detailed Embodiments

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Example 1

[0030] A liquid material feeding device for a 3D printer, comprising a printer body 1 and a liquid storage tank 11 fixedly connected to the upper surface of the printer body 1. One side of the upper surface of the liquid storage tank 11 is fixedly connected with a liquid inlet pipe 12, and one side of the lower surface of the liquid storage tank 11 is fixedly connected with a liquid outlet pipe 13. The liquid outlet pipe 13 penetrates through the surface of the printer body 1 and extends into the interior of the printer body 1, and is connected to a liquid supply hose arranged inside the printer body 1.

[0031] In this implementation: The existing device {publication (announcement) number}: CN216579225U discloses a liquid material quantitative feeding device for a 3D printer. This patent discloses a 3D printer. The printer body 1 in this application document adopts the same technical means as in this existing technology. These technical means will not be elaborated here one by one. Regarding this existing stirring blade, this application makes further improvements. For details, refer to the disclosed technology below; To solve the technical problems existing in this existing technology, as disclosed in the background technology above, "However, the stirring method of the above device can only stir the liquid in one direction, and cannot make the liquid form convection and be evenly mixed. Therefore, the stirring effect is not very good, and there may still be a problem of precipitation of liquid raw materials, which needs to be further improved to improve the mixing effect and make the mixing more uniform". In combination, this problem is obviously a real and difficult-to-solve problem. In view of this, to solve this technical problem, a stirring component 2 and a sealing component 3 are added to this application document.

[0032] As Figures 1-6 shown:

[0033] It further includes a stirring component 2 installed on the liquid storage tank 11; The stirring component 2 includes a fixed block 21 fixedly connected to the upper surface of the liquid storage tank 11, a fixed frame 22 fixedly connected to the upper surface of the fixed block 21, and a rotating rod 23 arranged inside the fixed frame 22. Both ends of the rotating rod 23 are rotatably connected to the fixed frame 22 through bearings. One end of the rotating rod 23 penetrates through the surface of the fixed frame 22 and extends to the outside of the fixed frame 22, and is connected to the transmission shaft of a motor 25 arranged outside the fixed frame 22. A gear disk 24 is fixedly connected to the outer side wall of the rotating rod 23. Two sides of the gear disk 24 are meshed with bevel gears 26 respectively. The bevel gears 26 are rotatably connected to the fixed frame 22 through bearings. A sleeve 27 is fixedly connected to the lower surface of the bevel gear 26. A stirring paddle 28 is fixedly connected to the bottom end of the outer side wall of the sleeve 27.

[0034] In this implementation: All the electrical appliances used in this device are powered by an external power supply. When in use, the operator starts the motor 25 installed on the fixed frame 22, and the drive shaft of the motor 25 drives the rotating rod 23 to rotate. Thus, the rotating rod 23 can drive the gear disk 24 to rotate, and drive the bevel gear 26 to rotate, thereby driving the sleeve 27 to rotate, so as to drive the stirring paddle 28 to rotate. Then, through the two stirring paddles 28 stirring in opposite directions, the liquid can achieve convection and mixing, making the mixing more uniform, improving the mixing effect, and avoiding precipitation of liquid raw materials.

[0035] In an alternative embodiment, the stirring paddle 28 is arranged in a spherical structure with a smaller upper part and a larger lower part.

[0036] In an alternative embodiment, equidistantly distributed sawteeth are arranged on the stirring blades of the stirring paddle 28.

[0037] In this implementation: Through the spherical stirring paddle 28 and the sawteeth arranged on the paddle blades of the stirring paddle 28, the contact area with the liquid can be increased, thereby improving the stirring effect.

[0038] In an alternative embodiment, the fixed frame 22 is arranged in a triangular structure with a narrower upper part and a wider lower part.

[0039] In this implementation: Through the design of the fixed frame 22 with a narrower upper part and a wider lower part, it is convenient to accommodate the bevel gear 26 below, which can reduce the overall volume and be more aesthetically pleasing.

[0040] In an alternative embodiment, a U-shaped connecting rod 210 is arranged below the stirring paddle 28. The connecting rod 210 is fixedly connected to the bottom end of the inner side wall of the liquid storage tank 11. Both ends of the connecting rod 210 penetrate through the stirring paddles 28 on both sides, and sequentially penetrate through the sleeve 27, the fixed block 21 and the bevel gear 26, and extend above the bevel gear 26, and are fixedly connected to the connecting block 29 arranged above the bevel gear 26. The connecting block 29 is fixedly connected to the fixed frame 22.

[0041] In this implementation: By using the connecting rod 210 fixed to the connecting block 29, the rotation of the stirring paddle 28 can be further limited, making the rotation of the stirring paddle 28 more stable and the stirring effect better.

[0042] In an alternative embodiment, the bevel gear 26, the sleeve 27 and the stirring paddle 28 are all arranged in an inclined shape.

[0043] In this implementation: By using the inclined stirring paddle 28, the stirring range of the stirring paddle 28 can be increased, thereby improving the mixing effect.

[0044] Furthermore:

[0045] The liquid material feeding device for the 3D printer further includes a sealing assembly 3. The sealing assembly 3 includes a first sealing cover 31 fixedly connected to one side of the fixed frame 22 and a second sealing cover 32 fixedly connected to the other side of the fixed frame 22.

[0046] In this embodiment: By providing the first sealing cover 31 and the second sealing cover 32, components such as the gear disk 24 and the bevel gear 26 can be placed in a closed cavity, thus avoiding the influence of dust erosion.

[0047] The working principle and usage process of the present utility model: The operator starts the motor 25 installed on the fixed frame 22, so that the transmission shaft of the motor 25 drives the rotating rod 23 to rotate. Thus, the rotating rod 23 can drive the gear disk 24 to rotate and drive the bevel gear 26 to rotate, thereby driving the sleeve 27 to rotate, so as to drive the stirring paddle 28 to rotate. Thus, through the two stirring paddles 28 stirring in opposite directions, the liquid can achieve convection and mixing, making the mixing more uniform. By using the connecting rod 210 fixed on the connecting block 29, the rotation of the stirring paddle 28 can be further limited, making the rotation of the stirring paddle 28 more stable. By providing the first sealing cover 31 and the second sealing cover 32, components such as the gear disk 24 and the bevel gear 26 can be placed in a closed cavity, which can achieve the effect of dust prevention.

[0048] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A liquid material feeding device for a 3D printer, comprising a printer body (1) and a liquid storage tank (11) fixedly connected to the upper surface of the printer body (1), a liquid inlet pipe (12) fixedly connected to one side of the upper surface of the liquid storage tank (11), a liquid outlet pipe (13) fixedly connected to one side of the lower surface of the liquid storage tank (11), the liquid outlet pipe (13) passing through the surface of the printer body (1) and extending to the interior of the printer body (1), and connected to a liquid supply hose arranged inside the printer body (1), characterized in that: It also includes a stirring assembly (2) installed on the liquid storage tank (11); The stirring assembly (2) comprises a fixed block (21) fixedly connected to the upper surface of the liquid storage tank (11), a fixed frame (22) fixedly connected to the upper surface of the fixed block (21), and a rotating rod (23) arranged inside the fixed frame (22); both ends of the rotating rod (23) are rotatably connected to the fixed frame (22) through bearings; one end of the rotating rod (23) penetrates the surface of the fixed frame (22) and extends to the outside of the fixed frame (22) and is connected to a transmission shaft of a motor (25) arranged outside the fixed frame (22); an outer wall of the rotating rod (23) is fixedly connected to a gear plate (24); both sides of the gear plate (24) are meshedly connected to bevel gears (26); the bevel gears (26) are rotatably connected to the fixed frame (22) through bearings; a sleeve (27) is fixedly connected to the lower surface of the bevel gear (26); and a stirring paddle (28) is fixedly connected to the bottom end of the outer wall of the sleeve (27).

2. The liquid material feeding device for a 3D printer according to claim 1, characterized in that: The stirring paddle (28) is arranged in a spherical structure with a small upper portion and a large lower portion.

3. The liquid material feeding device for a 3D printer according to claim 1, characterized in that: The stirring blade of the stirring paddle (28) is provided with saw teeth distributed at equal intervals.

4. The liquid material feeding device for a 3D printer according to claim 1, characterized in that: The fixing frame (22) is arranged in a triangular structure which is narrow at the top and bottom and wide at the bottom.

5. The liquid material feeding device for a 3D printer according to claim 2, characterized in that: A U-shaped connecting rod (210) is provided below the stirring paddle (28), and the connecting rod (210) is fixedly connected to the bottom end of the inner wall of the liquid storage tank (11). Both ends of the connecting rod (210) penetrate the stirring paddles (28) located on both sides, and sequentially penetrate the sleeve (27), the fixing block (21) and the bevel gear (26), and extend to the top of the bevel gear (26), and are fixedly connected to a connecting block (29) provided above the bevel gear (26), and the connecting block (29) is fixedly connected to the fixing frame (22).

6. The liquid material feeding device for a 3D printer according to claim 1, characterized in that: The bevel gear (26), the sleeve (27) and the stirring paddle (28) are all arranged in an inclined shape.

7. The liquid material feeding device for a 3D printer according to claim 1, characterized in that: It also comprises a sealing assembly (3), wherein the sealing assembly (3) comprises a first sealing cover (31) fixedly connected to one side of the fixing frame (22) and a second sealing cover (32) fixedly connected to the other side of the fixing frame (22).

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