3D printing equipment

Abstract

The utility model provides 3D printing equipment. The 3D printing equipment comprises a material tank, a stirring fluted disc and a power driving part, the material groove comprises a bottom plate and side plates, the side plates are arranged around the bottom plate in a surrounding mode, and a containing space capable of containing printing materials is defined by the side plates and the bottom plate. The stirring fluted disc is located in the containing space and close to the bottom plate, and the stirring fluted disc is rotationally connected to the bottom plate; the power driving part is arranged outside the material groove and connected with the stirring fluted disc so as to drive the stirring fluted disc to rotate relative to the bottom plate. The stirring fluted disc is arranged in the material groove containing the printing material, the stirring fluted disc is driven by the power driving part to rotate so as to automatically stir the printing material in the material groove, manual stirring operation is not needed, time and labor are saved, and the automation degree is improved. Due to the fact that the stirring fluted disc is arranged close to the bottom plate, in the process that the stirring fluted disc rotates relative to the bottom plate, powder deposited on the bottom plate can be raised easily, printing materials can be stirred evenly and rapidly, time needed by stirring is shortened, and stirring efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of 3D printing technology, and more specifically, to a 3D printing device. Background Technology

[0002] With the development of technology, 3D printing has been widely used in manufacturing. In conventional 3D printing equipment, the material tank contains liquid printing material. After the printing platform is immersed in the material tank, the liquid printing material adheres to the printing platform. The liquid printing material in local areas on the printing platform solidifies under the exposure of the exposure module. After repeated cycles, the printing platform solidifies to obtain a complete model (such as a dental mold). Since the liquid printing material in the material tank is a mixture of powder and colloid, when the 3D printing equipment is not used for a period of time, the powder, due to its high density, easily separates from the colloid and settles at the bottom of the material tank. Often, the operator needs to use a hand tool to thoroughly stir the printing material in the material tank to ensure that the powder and colloid are evenly mixed. This operation is not only time-consuming and labor-intensive, but also reduces the automation level of the 3D printing equipment. Utility Model Content

[0003] The purpose of this application is to provide a highly automated 3D printing device.

[0004] A 3D printing device, comprising:

[0005] The material trough includes a bottom plate and side plates, the side plates surrounding the bottom plate and together forming a storage space capable of accommodating printing materials;

[0006] A stirring toothed disc is located within the receiving space and positioned close to the base plate; the stirring toothed disc is rotatably connected to the base plate.

[0007] A power drive unit is externally mounted on the material tank and connected to the stirring toothed disc to drive the stirring toothed disc to rotate relative to the base plate.

[0008] In one embodiment, the stirring toothed disc includes a turntable and stirring teeth. The turntable is rotatably connected to the base plate, and the stirring teeth are provided on both the side of the turntable facing the base plate and the side of the turntable away from the base plate.

[0009] In one embodiment, there are multiple stirring teeth, which are evenly spaced along the edge of the turntable on the same side of the turntable; the multiple stirring teeth on one side of the turntable are staggered with the multiple stirring teeth on the other side of the turntable.

[0010] In one embodiment, the stirring teeth are rectangular.

[0011] In one embodiment, the stirring disc is located in a height space below half of the maximum liquid level within the containment space and close to the bottom plate.

[0012] In one embodiment, the 3D printing equipment includes a transmission assembly connected between the stirring disc and the power drive component, the power drive component driving the stirring disc to rotate via the transmission assembly.

[0013] In one embodiment, the transmission assembly includes a flange, a first rotor, and a second rotor. The flange is sealed to the base plate. The first rotor and the second rotor are located on opposite sides of the flange. The second rotor is connected to the stirring toothed disc to rotate synchronously relative to the base plate. The power drive is connected to the first rotor to drive the first rotor to rotate. The first rotor drives the second rotor to rotate through an induced magnetic field.

[0014] In one embodiment, the bottom plate of the material tank is connected to a discharge pipe capable of discharging printing material.

[0015] In one embodiment, the 3D printing equipment includes an auxiliary tank and a functional component. The auxiliary tank is located on one side of the material tank, and the internal space of the auxiliary tank is connected to the receiving space. The functional component is installed in the auxiliary tank and is capable of detecting and adjusting the liquid level of the printing material in the material tank.

[0016] In one embodiment, the functional components include a liquid level detector, a liquid level regulating float, and a replenishment pipeline. The liquid level detector is capable of detecting the liquid level. The liquid level regulating float is connected to the liquid level detector and adjusts the liquid level by changing the submerged volume. The replenishment pipeline is connected to the liquid level detector and is capable of replenishing printing material to the material tank.

[0017] The beneficial effects of the 3D printing equipment provided in this application embodiment are as follows: By setting a stirring toothed disc in the material tank containing printing material, and driving the stirring toothed disc to rotate through a power drive component, the stirring toothed disc can automatically stir the printing material in the material tank, eliminating the need for manual stirring operations, thus saving time and labor and improving the automation level of the 3D printing equipment. Furthermore, because the stirring toothed disc is positioned close to the base plate, it easily lifts up the powder settled on the base plate during its rotation relative to the base plate, quickly and evenly stirring the printing material, thereby shortening the stirring time and improving stirring efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the 3D printing equipment provided in the embodiments of this application;

[0020] Figure 2 for Figure 1 A schematic diagram of the 3D printing equipment from another perspective;

[0021] Figure 3 for Figure 1 A cross-sectional view of the 3D printing equipment shown.

[0022] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0023] The following are the labeling elements in the figure:

[0024] 100. Material trough; 110. Base plate; 111. Mounting hole; 120. Side plate; 200. Agitator disc; 210. Turntable; 220. Agitator teeth; 230. Gap; 300. Power drive component; 400. Transmission assembly; 410. Flange; 411. Barrel-shaped part; 412. Connecting part; 413. Groove; 420. First rotor; 430. Second rotor; 440. First bearing; 450. First drive shaft; 460. Second bearing; 470. Second drive shaft; 480. Drive wheel; 490. Driven wheel; 500. Sealing ring; 600. Bracket; 700. Discharge pipe; 710. Valve; 800. Auxiliary trough. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0029] Please refer to the following: Figures 1 to 4 The 3D printing equipment provided in this application embodiment will now be described. The 3D printing equipment includes a material tank 100, a stirring toothed disc 200, and a power drive unit 300. The material tank 100 includes a base plate 110 and side plates 120, with the side plates 120 surrounding the base plate 110 and together forming a receiving space capable of accommodating printing material. The stirring toothed disc 200 is located within the receiving space and is disposed close to the base plate 110, and is rotatably connected to the base plate 110. The power drive unit 300 is externally located within the material tank 100 and connected to the stirring toothed disc 200 to drive the stirring toothed disc 200 to rotate relative to the base plate 110.

[0030] In the aforementioned 3D printing equipment, a stirring toothed disc 200 is installed inside the material tank 100 containing printing material. The stirring toothed disc 200 is rotated by a power drive component 300, allowing it to automatically stir the printing material within the material tank 100. This eliminates the need for manual stirring, saving time and effort and increasing the automation level of the 3D printing equipment. Furthermore, because the stirring toothed disc 200 is positioned close to the base plate 110, it easily lifts up powder deposited on the base plate 110 during its rotation relative to the base plate 110, quickly and evenly mixing the printing material, thereby shortening the mixing time and improving mixing efficiency.

[0031] Combination Figure 1 and Figure 3As shown, specifically in this application, the stirring disc 200 includes a turntable 210 and stirring teeth 220. The turntable 210 is rotatably connected to the base plate 110. Stirring teeth 220 are provided on both the side of the turntable 210 facing the base plate 110 and the side facing away from the base plate 110. By providing stirring teeth 220 on both sides of the turntable 210 facing the base plate 110 and the side facing away from the base plate 110, stirring vortices can be formed on both sides of the turntable 210, thereby accelerating the mixing of powder and colloid and improving stirring efficiency. Specifically, the base plate 110 is flat, and the turntable 210 is disc-shaped and arranged parallel to the base plate 110.

[0032] Furthermore, there are multiple stirring teeth 220. On the same side of the turntable 210, the multiple stirring teeth 220 are evenly spaced along the edge of the turntable 210. The multiple stirring teeth 220 on one side of the turntable 210 are staggered with the multiple stirring teeth 220 on the other side of the turntable 210. It can be understood that on the side of the turntable 210 facing away from the base plate 110, multiple stirring teeth 220 are provided on the edge of the turntable 210, and the multiple stirring teeth 220 are evenly spaced, with a gap 230 between adjacent stirring teeth 220, thus forming multiple gaps 230 between the multiple stirring teeth 220. Stirring teeth 220 are provided at positions on the side of the turntable 210 facing the base plate 110 that correspond one-to-one with these multiple gaps 230, so that the number of stirring teeth 220 on both sides of the turntable 210 is equal. In other embodiments, the number of stirring teeth 220 on both sides of the turntable 210 may not be equal.

[0033] In this application, the stirring teeth 220 located on the edge of the turntable 210 are rectangular. The rectangular stirring teeth 220 have high structural strength, which not only allows for a stable connection with the turntable 210, but also prevents them from bending during the stirring process, thus enabling them to effectively stir the printing material.

[0034] In this application, the stirring toothed disk 200 is located in the height space below half of the maximum liquid level in the containing space and close to the bottom plate 110. It can be understood that the maximum liquid level in the containing space is the liquid level height when the material tank 100 is full of printing material. Using half of the maximum liquid level as the dividing line, the stirring toothed disk 200 must be completely below this dividing line. In this way, the printing platform can be immersed in the space above the dividing line without colliding with the stirring toothed disk 200. Thus, the 3D printing equipment can achieve automatic stirring of the printing material through the stirring toothed disk 200 while also ensuring smooth operation of attaching printing material to the printing platform. In other embodiments, the dividing line can also be set at a distance of one-third or one-quarter of the maximum liquid level from the bottom plate 110.

[0035] Combination Figures 2 to 4As shown, specifically in this application, the 3D printing equipment includes a transmission assembly 400, which is connected between the stirring toothed disk 200 and the power drive component 300. The power drive component 300 drives the stirring toothed disk 200 to rotate via the transmission assembly 400. It can be understood that the power drive component 300, as a power output device, transmits power to the stirring toothed disk 200 through the transmission assembly 400 to achieve the rotation of the stirring toothed disk 200.

[0036] Specifically, the transmission assembly 400 includes a flange 410, a first rotor 420, and a second rotor 430. The flange 410 is sealed to the base plate 110. The first rotor 420 and the second rotor 430 are located on opposite sides of the flange 410. The second rotor 430 is connected to the stirring toothed disc 200 to rotate synchronously relative to the base plate 110. The power drive component 300 is connected to the first rotor 420 to drive it to rotate. The first rotor 420 drives the second rotor 430 to rotate via an induced magnetic field. It can be understood that by setting the first rotor 420 and the second rotor 430 on opposite sides of the flange 410, even when the first rotor 420 and the second rotor 430 are not in contact, the first rotor 420 drives the second rotor 430 to rotate via an induced magnetic field. Consequently, the stirring toothed disc 200 rotates synchronously with the second rotor 430. Since the flange 410 is sealed to the base plate 110, it can be ensured that the printing material in the material tank 100 will not leak.

[0037] Specifically, the transmission assembly 400 includes a first bearing 440 and a first transmission shaft 450. The first transmission shaft 450 passes through the base plate 110 and is rotatably connected to the base plate 110 through the first bearing 440. One end of the first transmission shaft 450 is fixedly connected to the stirring toothed disc 200, and the other end is fixedly connected to the second rotor 430.

[0038] Specifically, the flange 410 includes a barrel-shaped portion 411 and a connecting portion 412 connected to the outer wall of the barrel-shaped portion 411. The connecting portion 412 is connected to the side of the base plate 110 away from the receiving space (i.e., the lower surface). The second rotor 430 is housed in the groove 413 formed by the barrel-shaped portion 411, and the first rotor 420 is sleeved around the periphery of the barrel-shaped portion 411, so that the first rotor 420 and the second rotor 430 are respectively located on both sides of the barrel-shaped portion 411. The connecting portion 412 is fixedly connected to the base plate 110 by a threaded connector, and a sealing ring 500 is also provided between the connecting portion 412 and the base plate 110. The sealing ring 500 surrounds the periphery of the mounting hole 111 on the base plate 110 through which the first drive shaft 450 passes, thereby sealing the gap 230 between the flange 410 and the base plate 110.

[0039] Specifically, the 3D printing equipment includes a support 600 connected to the material tank 100 to support the material tank 100. The transmission assembly 400 includes a second bearing 460 and a second drive shaft 470, one end of which is rotatably connected to the support 600 via the second bearing 460. The other end is fixedly connected to the first rotor 420.

[0040] Specifically, the power drive unit 300 is an electric motor with a power output shaft. The transmission assembly 400 includes a drive pulley 480, a driven pulley 490, and a belt (not shown). The driven pulley 490 is fixedly connected to the second transmission shaft 470 and is located between the second bearing 460 and the first rotor 420. The drive pulley 480 is fixedly connected to the power output shaft to rotate with it. The belt connects the drive pulley 480 and the driven pulley 490, allowing the drive pulley 480 to drive the driven pulley 490 to rotate. Thus, the driven pulley 490 drives the second transmission shaft 470 and the first rotor 420 to rotate synchronously, and the first rotor 420 drives the second rotor 430 and the stirring toothed disc 200 to rotate.

[0041] Specifically, in this application, the bottom plate 110 of the material tank 100 is connected to a discharge pipe 700 for discharging printing material. The discharge pipe 700 facilitates the discharge of waste material from the material tank 100, or wastewater from cleaning the material tank 100 can also be discharged through the discharge pipe 700. Furthermore, a valve 710 is provided on the discharge pipe 700 to control the opening and closing of the discharge pipe 700.

[0042] Combination Figures 1 to 3 As shown, specifically in this application, the 3D printing equipment includes an auxiliary tank 800 and a functional component (not shown). The auxiliary tank 800 is located on one side of the material tank 100, and its internal space is connected to the receiving space. The functional component is installed in the auxiliary tank 800 and can detect and adjust the liquid level of the printing material in the material tank 100. It can be understood that the auxiliary tank 800 and the material tank 100 have the same liquid level. After the functional component is installed in the auxiliary tank 800, the liquid level can be detected and adjusted through the functional component. Furthermore, the functional component and the stirring toothed disc 200 are located in two separate tanks, reducing the probability of damage to the functional component caused by the violent movement of the printing material during the stirring process.

[0043] Specifically, the functional components include a liquid level detector, a liquid level regulating float, and a liquid replenishment pipeline. The liquid level detector can detect the liquid level. The liquid level regulating float is connected to the liquid level detector and adjusts the liquid level by changing the submerged volume. The liquid replenishment pipeline is connected to the liquid level detector and can replenish printing material to the material tank 100.

[0044] It is understandable that the liquid level detector can detect the height of the liquid level and transmit the detection information to the control system of the 3D printing equipment. When the liquid level is lower than the preset value, the control system can control the liquid replenishment pipeline to open, so as to replenish the printing material in the material tank 100 through the auxiliary tank 800.

[0045] It is understandable that when the level of the printing material in the material tank 100 is within the normal range, the printing platform can be submerged in the material tank 100 to perform normal 3D printing operations in conjunction with the exposure module. Furthermore, as the 3D printing operation continues, the printing material in the material tank 100 will gradually decrease, and the liquid level will gradually decrease. Based on the liquid level height detected by the liquid level detector, the control system can control the raising and lowering of the liquid level regulating float, thereby changing the volume of the liquid level regulating float submerged by the printing material, thus achieving fine-tuning of the liquid level to maintain a constant liquid level height. This ensures that the printing platform is always attached to the printing material when it descends to the set height position in the material tank 100 multiple times.

[0046] Specifically, the auxiliary tank 800 is divided into three compartments, with the level detector, level regulating float and replenishment pipeline installed in each compartment to prevent interference between them.

[0047] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A 3D printing device, characterized in that, include: The material trough includes a bottom plate and side plates, the side plates surrounding the bottom plate and together forming a storage space capable of accommodating printing materials; A stirring toothed disc is located within the receiving space and is disposed close to the bottom plate; the stirring toothed disc is rotatably connected to the bottom plate. and A power drive unit is externally mounted on the material tank and connected to the stirring toothed disc to drive the stirring toothed disc to rotate relative to the base plate.

2. The 3D printing equipment according to claim 1, characterized in that, The stirring toothed disc includes a turntable and stirring teeth. The turntable is rotatably connected to the base plate. The stirring teeth are provided on both the side of the turntable facing the base plate and the side of the turntable away from the base plate.

3. The 3D printing equipment according to claim 2, characterized in that, The stirring teeth are multiple in number, and are evenly spaced along the edge of the turntable on the same side of the turntable; the stirring teeth on one side of the turntable are staggered with the stirring teeth on the other side of the turntable.

4. The 3D printing equipment according to claim 2, characterized in that, The stirring teeth are rectangular.

5. The 3D printing apparatus according to any one of claims 1 to 4, characterized in that, The stirring disc is located in the height space below half of the maximum liquid level in the containment space and close to the bottom plate.

6. The 3D printing equipment according to claim 1, characterized in that, The 3D printing equipment includes a transmission assembly connected between the stirring toothed disc and the power drive component, wherein the power drive component drives the stirring toothed disc to rotate via the transmission assembly.

7. The 3D printing equipment according to claim 6, characterized in that, The transmission assembly includes a flange, a first rotor, and a second rotor. The flange is sealed to the base plate. The first rotor and the second rotor are located on opposite sides of the flange. The second rotor is connected to the stirring toothed disc so that it can rotate synchronously relative to the base plate. The power drive component is connected to the first rotor so that it can drive the first rotor to rotate. The first rotor drives the second rotor to rotate through an induced magnetic field.

8. The 3D printing equipment according to claim 1, characterized in that, The bottom plate of the material tank is connected to a discharge pipe that can discharge printing material.

9. The 3D printing equipment according to claim 1, characterized in that, The 3D printing equipment includes an auxiliary tank and functional components. The auxiliary tank is located on one side of the material tank, and its internal space is connected to the receiving space. The functional components are installed in the auxiliary tank and can detect and adjust the liquid level of the printing material in the material tank.

10. The 3D printing equipment according to claim 9, characterized in that, The functional components include a liquid level detector, a liquid level regulating float, and a liquid replenishment pipeline. The liquid level detector is capable of detecting the liquid level. The liquid level regulating float is connected to the liquid level detector and adjusts the liquid level by changing the submerged volume. The liquid replenishment pipeline is connected to the liquid level detector and is capable of replenishing printing material to the material tank.

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