Liquid tank device for 3D printing

Abstract

The utility model provides a 3D printing liquid tank device which comprises a liquid tank, a rectangular opening is formed in the bottom in the liquid tank, UV coated quartz glass is inserted in the rectangular opening and fixed in a supporting frame, the supporting frame is arranged at the bottom of the liquid tank, a plurality of lower small holes are evenly formed in the upper surface of the supporting frame, and the lower small holes are communicated with the rectangular opening. A plurality of protruding parts are evenly fixed to the bottom in the liquid groove, the upper surfaces of the protruding parts are sunken downwards to form rectangular grooves, a plurality of upper small holes communicated with the rectangular grooves are formed in the bottom of the liquid groove, the upper small holes are aligned with the lower small holes, rectangular blocks are inserted into the rectangular grooves, screw holes are formed in the lower surfaces of the rectangular blocks, and the screw holes are matched with the screw holes. The utility model has the following beneficial effects: a part with the processed screw hole is in inserted connection with the liquid tank, the whole liquid tank is prevented from being discarded due to the damage of the screw hole, and the resource waste is reduced.

Description

Technical Field

[0001] The utility model relates to a liquid tank device for 3D printing, belonging to the field of 3D printing. Background Art

[0002] The DLP type light-curing 3D printer uses DLP technology to project 3D entities in layers onto a movable molding platform located in a liquid tank, and uses ultraviolet rays in the light source to solidify the photosensitive resin under the projection image to form the required shape. A UV-coated quartz glass is installed at the bottom of the liquid tank. After the liquid tank is used, it needs to be cleaned. During the cleaning process, the surface of the UV-coated quartz glass may be scratched. Therefore, the combination of screws and screw holes is a common way to limit the position of the UV-coated quartz glass and the liquid tank, that is, screw holes are processed on the liquid tank, and the screws are passed through the holes on the support frame set on the UV-coated quartz glass and then screwed into the screw holes to complete the assembly of the UV-coated quartz glass and the liquid tank. When the surface of the UV-coated quartz glass is scratched, the screws can be removed and replaced. During the disassembly and assembly of the screws, the screw holes processed on the liquid tank are easily damaged due to excessive torque and other reasons, resulting in the UV-coated quartz glass being unable to be smoothly assembled with the liquid tank, and the entire liquid tank needs to be discarded, resulting in a waste of resources. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a 3D printed liquid tank device to solve the problems raised in the above-mentioned background technology. The present invention enables a component with a screw hole to form a plug-in relationship with the liquid tank, thereby avoiding the discarding of the entire liquid tank due to damage to the screw hole and reducing waste of resources.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a 3D printed liquid tank device, comprising a liquid tank, a rectangular opening is opened at the bottom of the liquid tank, UV-coated quartz glass is inserted in the rectangular opening, the UV-coated quartz glass is fixed in a supporting frame, the supporting frame is arranged at the bottom of the liquid tank, a plurality of lower small holes are evenly opened on the upper surface of the supporting frame, a plurality of raised parts are evenly fixed on the bottom of the liquid tank, the upper surface of the raised part is recessed downward to form a rectangular groove, a plurality of upper small holes communicating with the rectangular groove are opened at the bottom of the liquid tank, the upper small holes are aligned with the lower small holes, a rectangular block is inserted in the rectangular groove, a screw hole is opened on the lower surface of the rectangular block, a screw is inserted in the channel formed by the lower small hole and the upper small hole, and one end of the screw is threadedly connected in the screw hole.

[0005] Furthermore, a sealing gasket is provided on the lower side of the rectangular block, and the sealing gasket is sleeved on the screw.

[0006] Furthermore, a sealing frame is provided between the supporting frame and the liquid tank, a plurality of middle holes aligned with the lower holes are evenly opened on the upper surface of the sealing frame, the screws pass through the middle holes, and the sealing frame is sleeved on the UV-coated quartz glass.

[0007] Furthermore, strip openings are provided at upper positions of two parallel side surfaces of the liquid tank, and transparent plates are installed in the strip openings.

[0008] Furthermore, a bottom frame is connected and fixed to the bottom edge of the liquid tank, the bottom frame and the liquid tank are an integrally formed structure, and the lower end of the screw is higher than the bottom of the bottom frame.

[0009] Furthermore, two slats are connected and fixed in the bottom frame, there is a gap between the slats and the bottom of the liquid tank, and a through hole is opened on the lower surface of the slat that is aligned with the lower small hole, and the screw passes through the through hole.

[0010] Furthermore, a gripping plate is connected and fixed to two parallel side surfaces of the liquid tank, and the gripping plate and the liquid tank are an integrally formed structure.

[0011] Beneficial effects of the utility model:

[0012] 1. Insert the rectangular block with screw holes into the rectangular groove in the raised part to connect the rectangular block with the liquid tank. Pass one end of the screw through the lower small hole, the middle small hole and the upper small hole and then screw it into the screw hole to complete the assembly of the UV-coated quartz glass and the liquid tank. When the screw hole is damaged during the disassembly and assembly of the screw, take the rectangular block out of the rectangular groove and replace it, so as to realize the partial replacement of the vulnerable threaded connection part, avoid the abandonment of the entire liquid tank due to the damage of the screw hole, and reduce the waste of resources.

[0013] 2. During the installation of the screws, the screws are passed through the holes on the slats. Since there is a gap between the slats and the bottom of the liquid tank, after the screws are installed, there is also a gap between the head of the screw and the bottom of the liquid tank. When the screws and the screw holes cannot be separated using conventional tools, the gap between the screw head and the liquid tank is used to cut off the screws, thereby facilitating the removal of the rectangular block from the rectangular tank without damaging the liquid tank and other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 This is a schematic structural diagram of a 3D printed liquid tank device of the utility model;

[0016] Figure 2 This is a three-dimensional view of a 3D printed liquid tank device of the utility model from another perspective;

[0017] Figure 3 This is a schematic diagram of the assembly of a protrusion and a liquid tank in a 3D printed liquid tank device of the utility model;

[0018] Figure 4 A three-dimensional diagram of a liquid tank in a 3D printed liquid tank device of the utility model;

[0019] Figure 5 This is a schematic diagram of the assembly of a sealing frame, a supporting frame, screws, a rectangular block and UV-coated quartz glass in a 3D-printed liquid tank device of the utility model;

[0020] Figure 6 This is a three-dimensional diagram of a sealing frame in a 3D printed liquid tank device of the utility model;

[0021] Figure 7 This is a three-dimensional diagram of a support frame in a 3D printed liquid tank device of the utility model;

[0022] Figure 8 This is a three-dimensional diagram of a sealing gasket in a 3D printed liquid tank device of the utility model;

[0023] Fig. 9 This is a schematic diagram of the assembly of the slats and the bottom frame in a 3D printed liquid tank device of the utility model;

[0024] In the figure: 1-liquid tank, 2-transparent plate, 3-bottom frame, 4-gripping plate, 5-UV coated quartz glass, 6-raised portion, 7-rectangular block, 8-support frame, 9-slat, 10-screw, 11-rectangular opening, 12-rectangular groove, 13-upper small hole, 14-sealing frame, 15-sealing gasket, 16-perforation. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] See also Figure 1-Figure 7 The utility model provides a technical solution: a 3D printed liquid tank device, including a liquid tank 1, a rectangular opening 11 is opened at the bottom of the liquid tank 1, a UV-coated quartz glass 5 is inserted in the rectangular opening 11, the UV-coated quartz glass 5 is fixed in a supporting frame 8, the supporting frame 8 is arranged at the bottom of the liquid tank 1, a sealing frame 14 is arranged between the supporting frame 8 and the liquid tank 1, a plurality of middle small holes aligned with the lower small holes are evenly opened on the upper surface of the sealing frame 14, a screw 10 passes through the middle small hole, the sealing frame 14 is sleeved on the UV-coated quartz glass 5, and the sealing frame 14 is installed between the supporting frame 8 and the liquid tank 1 to improve the sealing between the supporting frame 8 and the liquid tank 1.

[0027] See also Figure 1-Figure 8A plurality of lower small holes are evenly provided on the upper surface of the support frame 8, a plurality of protrusions 6 are evenly fixed on the bottom of the liquid tank 1, the upper surface of the protrusion 6 is depressed downward to form a rectangular groove 12, a plurality of upper small holes 13 communicating with the rectangular groove 12 are provided on the bottom of the liquid tank 1, the upper small holes 13 are aligned with the lower small holes, a rectangular block 7 is inserted in the rectangular groove 12, a screw hole is provided on the lower surface of the rectangular block 7, a screw 10 is inserted in the channel formed by the lower small hole and the upper small hole 13, one end of the screw 10 is threadedly connected in the screw hole, a sealing gasket 15 is provided on the lower side of the rectangular block 7, the sealing gasket 15 is sleeved on the screw 10, and the sealing gasket 1 The design of 5 improves the sealing performance between the rectangular block 7 and the inner wall of the rectangular groove 12. The rectangular block 7 with the screw hole is inserted into the rectangular groove 12 in the raised portion 6 to achieve the plug-in connection between the rectangular block 7 and the liquid tank 1. One end of the screw 10 passes through the lower small hole, the middle small hole and the upper small hole 13 and is screwed into the screw hole to complete the assembly of the UV-coated quartz glass 5 and the liquid tank 1. When the screw hole is damaged during the disassembly and assembly of the screw 10, the rectangular block 7 can be taken out of the rectangular groove 12 and replaced, thereby achieving partial replacement of the vulnerable threaded connection part, avoiding the abandonment of the entire liquid tank 1 due to the damage of the screw hole, and reducing resource waste.

[0028] See also Figure 1-Figure 4 A strip opening is provided at the upper position of two parallel sides of the liquid tank 1, and a transparent plate 2 is installed in the strip opening. The design of the transparent plate 2 facilitates observation of the liquid level height in the liquid tank 1. A gripping plate 4 is connected and fixed to the two parallel sides of the liquid tank 1. The gripping plate 4 and the liquid tank 1 are an integrally formed structure, and the gripping plate 4 provides a gripping carrier for the mobile liquid tank 1.

[0029] See also Figure 2 and Fig. 9 The bottom edge of the liquid tank 1 is connected and fixed with a bottom frame 3, and the bottom frame 3 and the liquid tank 1 are an integrated structure. The lower end of the screw 10 is higher than the bottom of the bottom frame 3, and the bottom frame 3 realizes balanced support for the liquid tank 1, and at the same time avoids the head of the screw 10 from contacting the supporting platform, which is conducive to the stable placement of the liquid tank 1. Two slats 9 are connected and fixed in the bottom frame 3. There is a gap between the slats 9 and the bottom of the liquid tank 1. The lower surface of the slats 9 is provided with a through hole 16 aligned with the lower small hole. The screw 10 passes through the through hole 16. During the installation of the screw 10, the screw 10 is passed through the through hole 16 on the slat 9. Because there is a gap between the slat 9 and the bottom of the liquid tank 1, after the screw 10 is installed, there is also a gap between the head of the screw 10 and the bottom of the liquid tank 1. When the screw 10 and the screw hole cannot be disassembled using conventional tools, the gap between the head of the screw 10 and the liquid tank 1 is used to cut off the screw 10, thereby facilitating the removal of the rectangular block 7 from the rectangular groove 12 without damaging the liquid tank 1 and other components.

[0030] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A 3D printing tank device, comprising a tank (1), characterized in that: The bottom of the liquid tank (1) is provided with a rectangular opening (11), a UV-coated quartz glass (5) is inserted in the rectangular opening (11), the UV-coated quartz glass (5) is fixed in a supporting frame (8), the supporting frame (8) is arranged at the bottom of the liquid tank (1), a plurality of lower small holes are evenly opened on the upper surface of the supporting frame (8), a plurality of protrusions (6) are evenly fixed on the bottom of the liquid tank (1), the upper surface of the protrusions (6) is depressed downward to form a rectangular groove (12), a plurality of upper small holes (13) communicating with the rectangular groove (12) are opened at the bottom of the liquid tank (1), the upper small holes (13) are aligned with the lower small holes, a rectangular block (7) is inserted in the rectangular groove (12), a screw hole is opened on the lower surface of the rectangular block (7), a screw (10) is inserted in the channel formed by the lower small hole and the upper small hole (13), one end of the screw (10) is threadedly connected in the screw hole.

2. A 3D printing tank device according to claim 1, characterized in that: A sealing gasket (15) is provided on the lower side of the rectangular block (7), and the sealing gasket (15) is sleeved on the screw (10).

3. A 3D printing tank device according to claim 1, characterized in that: A sealing frame (14) is provided between the supporting frame (8) and the liquid tank (1), a plurality of middle small holes aligned with the lower small holes are evenly opened on the upper surface of the sealing frame (14), the screws (10) pass through the middle small holes, and the sealing frame (14) is sleeved on the UV-coated quartz glass (5).

4. A 3D printing tank device according to claim 1, characterized in that: The upper portions of two parallel side surfaces of the liquid tank (1) are each provided with a strip-shaped opening, and a transparent plate (2) is installed in the strip-shaped opening.

5. A 3D printing tank device according to claim 1, characterized in that: A bottom frame (3) is connected and fixed to the bottom edge of the liquid tank (1); the bottom frame (3) and the liquid tank (1) are an integrally formed structure; and the lower end of the screw (10) is higher than the bottom of the bottom frame (3).

6. A 3D printing tank device according to claim 5, characterized in that: Two slats (9) are connected and fixed inside the bottom frame (3), and there is a gap between the slats (9) and the bottom of the liquid tank (1). A through hole (16) aligned with the lower small hole is opened on the lower surface of the slat (9), and the screw (10) passes through the through hole (16).

7. A 3D printing tank device according to claim 1, characterized in that: A gripping plate (4) is connected and fixed to two parallel side surfaces of the liquid tank (1); the gripping plate (4) and the liquid tank (1) are an integrally formed structure.

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