Machine table liquid leakage structure of 3d printing device and 3d printing device

Abstract

The utility model provides a machine platform liquid leakage structure of a 3d printing device and the 3d printing device, and the machine platform liquid leakage structure of the 3d printing device comprises a machine platform body; a supporting part and a liquid collecting groove are arranged on the machine table body, the supporting part is used for supporting a material groove, the liquid collecting groove is arranged around the material groove, and a liquid leakage hole is formed in the bottom of the liquid collecting groove and used for being communicated with a negative pressure device. Compared with the prior art, in the machine table liquid leakage structure of the 3d printing device, leaked liquid photosensitive resin flows into the liquid collecting tank after passing through the supporting part, and enters the liquid leakage hole through guiding of the liquid collecting tank, and the liquid leakage hole is communicated with the negative pressure device, so that the liquid leakage is more uniform. The negative pressure device enables the liquid leakage hole to generate negative pressure so as to suck the liquid photosensitive resin in the liquid collecting tank, so that the liquid photosensitive resin quickly enters the liquid leakage hole, and the liquid photosensitive resin is prevented from being accumulated in the liquid collecting tank.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, specifically to a liquid leakage structure for a 3D printing device and a 3D printing device. Background Technology

[0002] 3D printers are an additive manufacturing technology that uses a high-resolution ultraviolet light projector to cure ultraviolet-cured additive manufacturing resin layer by layer, thereby creating 3D printed objects.

[0003] During the printing process of a photopolymer 3D printer, a molding platform is inserted into the liquid photosensitive resin inside the 3D printer's material tank. Ultraviolet light is then used to irradiate the liquid photosensitive resin inside the material tank, causing it to undergo photopolymerization on the molding platform and ultimately form the model required for 3D printing.

[0004] During use, liquid photosensitive resin may leak from the gap between the material tank and the release film at the bottom of the 3D printer. The leaked liquid photosensitive resin may flow through the machine and then into the machine's interior. As a result, the operator needs to stop the machine and disassemble and replace the material tank for cleaning. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings and deficiencies in the prior art and to provide a liquid leakage structure for a 3D printing device and a 3D printing device.

[0006] One embodiment of the present invention provides a liquid leakage structure for a 3D printing device, comprising: a machine body;

[0007] The machine body is provided with a support part and a liquid collection tank. The support part is used to support the material tank. The liquid collection tank is arranged around the material tank. The bottom of the liquid collection tank is provided with a leakage hole, which is used to communicate with a negative pressure device.

[0008] In some alternative embodiments, the collection tank gradually slopes downwards in the direction of the leakage hole.

[0009] In some alternative embodiments, the angle between the bottom surface of the collection tank and the horizontal plane is 1°-10°.

[0010] In some alternative embodiments, the horizontal height of the support is not lower than the horizontal height of the liquid collection tank.

[0011] In some alternative embodiments, protruding mounting portions are formed on both sides of the support portion, and the liquid collection tank is formed with a U-shaped clearance groove arranged around the mounting portion.

[0012] In some alternative embodiments, the leakage hole is connected to a leakage pipe, and the leakage hole is connected to the negative pressure device through the leakage pipe.

[0013] In some alternative embodiments, the end of the leak tube is connected to a first quick connector, and the leak tube is connected to the leak hole through the first quick connector.

[0014] In some optional embodiments, a receiving cavity is formed within the machine body, a fixing hole communicating with the receiving cavity is provided at the bottom of the machine body, the liquid collection tank and the support are provided at the top of the machine body, the leakage hole communicates with the receiving cavity, the leakage pipe is arranged in the receiving cavity, and the leakage pipe is connected to the fixing hole.

[0015] In some alternative embodiments, a second quick connector is provided at the bottom of the leakage tube, the second quick connector being fixedly inserted through the fixing hole and extending from the fixing hole to the outside of the receiving cavity.

[0016] Another embodiment of this utility model provides a 3D printing device, including: a liquid leakage structure for a 3D printing device as described above.

[0017] Compared to existing technologies, in the liquid leakage structure of the 3D printing device of this invention, the leaked liquid photosensitive resin flows into the collection tank after passing through the support part. It is then guided into the leakage hole by the collection tank. Since the leakage hole is connected to the negative pressure device, the negative pressure device creates a negative pressure at the leakage hole to draw the liquid photosensitive resin in the collection tank, allowing the liquid photosensitive resin to quickly enter the leakage hole and preventing the liquid photosensitive resin from accumulating in the collection tank.

[0018] To provide a clearer understanding of this invention, the specific embodiments of the invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the liquid leakage structure and material tank of a 3D printing device according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 The enlarged view at point A is shown below;

[0021] Figure 3 This is a schematic diagram of the top structure of the liquid leakage structure of the 3D printing device according to an embodiment of the present invention;

[0022] Figure 4 This is a cross-sectional view of the liquid leakage structure and material tank of a 3D printing device according to an embodiment of the present invention.

[0023] Figure 5 for Figure 4 The enlarged view of point B shown.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Machine body; 11. Support part; 111. Mounting part; 12. Liquid collection tank; 121. U-shaped clearance groove; 13. Leakage hole; 14. Leakage pipe; 141. First quick connector; 142. Second quick connector; 15. Receiving cavity; 16. Fixing hole; 20. Material trough. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. In addition, unless otherwise stated, 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 indicated technical features.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 utility model 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 utility model.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In the description of this utility model, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] Please see Figures 1 to 3 One embodiment of this utility model provides a liquid leakage structure for a 3D printing device, including: a machine body 10.

[0031] The machine body 10 is equipped with a support part 11 and a liquid collection tank 12. The support part 11 supports the material tank 20, and the liquid collection tank 12 is arranged around the material tank 20. A leakage hole 13 is provided at the bottom of the liquid collection tank 12, which is used to communicate with a negative pressure device. The material tank 20 is placed on the support part 11, and the liquid collection tank 12 also surrounds the material tank 20 and the support part 11. The leaked liquid photosensitive resin flows into the liquid collection tank 12 after passing through the support part 11, and is guided by the liquid collection tank 12 into the leakage hole 13. 13 Because it is connected to the negative pressure device, the negative pressure device generates negative pressure at the leakage hole 13 to draw the liquid photosensitive resin in the collection tank 12, so as to prevent the liquid photosensitive resin from being difficult to reach and pass through the leakage hole 13 due to slow flow. This allows the liquid photosensitive resin in the collection tank 12 to be discharged quickly through the leakage hole 13, preventing the liquid photosensitive resin from accumulating in the collection tank 12. This allows the collection tank 12 to be designed to be smaller and shallower, which is less likely to affect the layout of other structures and the appearance of the machine body 10, and is also easier to clean.

[0032] In some alternative embodiments, the collection tank 12 is gradually inclined downward in the direction of the leakage hole 13, thereby facilitating the flow of liquid photosensitive resin toward the leakage hole 13 and preventing the liquid photosensitive resin from accumulating in the collection tank 12.

[0033] In some alternative embodiments, the angle between the bottom surface of the liquid collection tank 12 and the horizontal plane is 1°-10°, and the liquid photosensitive resin is guided to flow along the liquid collection tank 12 toward the leakage hole 13 by the gravity of the liquid photosensitive resin itself.

[0034] In some alternative embodiments, the horizontal height of the support 11 is not lower than the horizontal height of the collection tank 12, thereby preventing the collection tank 12 from obstructing the loading and unloading of the material trough 20 by the support 11. Specifically, ensuring that the horizontal height of the support 11 is not lower than the horizontal height of the collection tank 12 can be achieved by ensuring that the top of the support 11 is not lower than the opening of the material trough 20, thereby preventing the inner wall of the material trough 20 from obstructing the user from loading and unloading the material trough 20.

[0035] In some optional embodiments, protruding mounting portions 111 are formed on both sides of the support portion 11. The mounting portions 111 are used to position the positioning structure of the material tank 20. The positioning structure can be a movable pressure block, pressure plate, buckle, etc. The positioning structure is used to position the two sides of the material tank 20 to prevent the material tank 20 from shifting its position during use. The liquid collection tank 12 is formed with a U-shaped clearance groove arranged around the mounting portion 111 to adapt to the layout of the mounting portion 111. In addition, in this embodiment, the angle between the bottom surface of the U-shaped clearance groove and the water surface is 'a', and the angle between the bottom surface of the material tank 20 and the water surface at other positions other than the U-shaped clearance groove is 'b'. The angle 'a' is greater than the angle 'b', so that the bottom surface of the U-shaped clearance groove has a larger tilt angle, which prevents the liquid photosensitive resin from easily accumulating at the curved U-shaped clearance groove and affecting the movement of the liquid photosensitive resin toward the leakage hole 13. For example, 'a' can be 5°, and 'b' can be 3°.

[0036] Please see Figure 4 and Figure 5 In some optional embodiments, the leakage hole 13 is connected to the leakage pipe 14, and the leakage hole 13 is connected to the negative pressure device through the leakage pipe 14, thereby facilitating the connection between the leakage hole 13 and the negative pressure device.

[0037] In some optional embodiments, a receiving cavity 15 is formed inside the machine body 10, a fixing hole 16 communicating with the receiving cavity 15 is provided at the bottom of the machine body 10, a liquid collection tank 12 and a support part 11 are provided at the top of the machine body 10, a leakage hole 13 communicates with the receiving cavity 15, a leakage pipe 14 is arranged in the receiving cavity 15, and the leakage pipe 14 is connected to the fixing hole 16. Since the machine body 10 and the negative pressure device are usually packaged and transported separately, and even the manufacturers of the machine body 10 and the negative pressure device may be different, in order to facilitate the user to connect the drain pipe 14 inside the machine body 10 to the negative pressure device, the negative pressure device can be connected to the bottom of the machine body 10 through a connecting pipe, which facilitates the connection between the negative pressure device and the drain pipe 14. Moreover, the drain pipe 14 connects the drain hole 13 at the top of the machine body 10 and the fixing hole 16 at the bottom of the machine body 10. Therefore, the drain pipe 14 can be arranged vertically, which is conducive to the liquid photosensitive resin flowing to the bottom end of the drain pipe 14 by gravity and negative pressure.

[0038] In some alternative embodiments, the end of the drain pipe 14 is connected to a first quick connector 141, and the drain pipe 14 is connected to the drain hole 13 through the first quick connector 141, thereby facilitating communication between the drain pipe 14 and the drain hole 13. In this embodiment, the first quick connector 141 is arranged at the bottom of the top platform.

[0039] In some alternative embodiments, a second quick connector 142 is provided at the bottom of the leakage pipe 14. The second quick connector 142 is fixedly inserted through the fixing hole 16 and extends from the fixing hole 16 to the outside of the receiving cavity 15, so that the connecting pipe of the negative pressure device can be connected to the second quick connector 142, thereby realizing the connection between the negative pressure device and the leakage hole 13.

[0040] The aforementioned liquid leakage structure of the 3D printing device can be applied to a 3D printing device, which includes: a liquid leakage structure of the 3D printing device as described above.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid leakage structure for a 3D printing apparatus, characterized in that, include: Machine body; The machine body is provided with a support part and a liquid collection tank. The support part is used to support the material tank. The liquid collection tank is arranged around the material tank. The bottom of the liquid collection tank is provided with a leakage hole, which is used to communicate with a negative pressure device.

2. The liquid leakage structure of a 3D printing device according to claim 1, characterized in that: The liquid collection tank gradually slopes downwards in the direction of the leakage hole.

3. The liquid leakage structure of a 3D printing device according to claim 2, characterized in that: The angle between the bottom surface of the liquid collection tank and the horizontal plane is 1°-10°.

4. The liquid leakage structure of a 3D printing device according to claim 1, characterized in that: The horizontal height of the support is not lower than the horizontal height of the liquid collection tank.

5. The liquid leakage structure of a 3D printing device according to claim 1, characterized in that: The support has protruding mounting portions on both sides, and the liquid collection tank has a U-shaped clearance groove arranged around the mounting portion.

6. The liquid leakage structure of a 3D printing apparatus according to any one of claims 1 to 5, characterized in that: The leakage hole is connected to a leakage pipe, and the leakage hole is connected to the negative pressure device through the leakage pipe.

7. The liquid leakage structure of a 3D printing device according to claim 6, characterized in that: The end of the leakage pipe is connected to a first quick connector, and the leakage pipe is connected to the leakage hole through the first quick connector.

8. The liquid leakage structure of a 3D printing device according to claim 6, characterized in that: The machine body has a receiving cavity, and the bottom of the machine body is provided with a fixing hole that communicates with the receiving cavity. The liquid collection tank and the support are provided on the top of the machine body. The leakage hole communicates with the receiving cavity, and the leakage pipe is arranged in the receiving cavity and connected to the fixing hole.

9. The liquid leakage structure of a 3D printing device according to claim 8, characterized in that: The bottom of the leakage tube is provided with a second quick connector, which is fixedly inserted through the fixing hole and extends out of the receiving cavity.

10. A 3D printing apparatus, characterized in that, include: A liquid leakage structure for a 3D printing apparatus as described in any one of claims 1 to 9.

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