Trough structure of photocuring 3D printer

Abstract

The utility model relates to the technical field of 3D printers, in particular to a trough structure of a photocuring 3D printer, which comprises an upper material frame, a lower material frame and a connecting assembly, the discharging frame is arranged on the 3D printer, and a release film used for supporting a printing material in the using state is arranged at the top end of the discharging frame. The feeding frame is arranged at the top end of the release film and connected with the release film in an attached mode, and a sealing gasket used for sealing the position between the feeding frame and the release film in the using state is arranged in the middle of the bottom end of the feeding frame. The feeding frame is pressed, the feeding frame drives the sealing gasket to be compressed on the release film, the sealing gasket effectively seals a gap between the feeding frame and the release film, meanwhile, the feeding frame drives the connecting assembly to move downwards to be connected with the discharging frame in a clamped mode, the feeding frame is fixed to the release film through the connecting assembly, and therefore stable assembling of the trough is achieved. And materials are prevented from overflowing in the printing process.

Description

A feed tank structure for a photopolymer 3D printer Technical Field

[0001] This utility model relates to the field of photopolymer 3D printer technology, specifically to a material tank structure for a photopolymer 3D printer. Background Technology

[0002] Photopolymer 3D printing technology relies on photosensitive resin to be cured by special light to build up a complete model layer by layer. The material tank is the core component that holds the liquid photosensitive resin.

[0003] Chinese patent document CN220973348U discloses a material tank for a photopolymer 3D printer, including an outer tank installed on the main body of the photopolymer 3D printer, an anti-leakage groove in the outer tank, and an inner tank fixed in the anti-leakage groove. The inner tank includes an inner tank frame, a release film, and a pressure plate from top to bottom. The release film is clamped between the inner tank frame and the pressure plate. The inner tank frame is provided with a carrier groove for accommodating photosensitive resin. The bottom of the inner tank frame is provided with a recessed fixing groove. The pressure plate presses the edge of the release film into the fixing groove. A flow guide frame is provided on the outer periphery of the inner tank frame. A flow guide cavity communicating with the fixing groove is provided in the flow guide frame. The bottom of the flow guide cavity communicates with the anti-leakage groove.

[0004] However, in the above solution, by setting an inner tank in the outer tank and forming a leak-proof groove between the inner wall of the outer tank and the outer side of the inner tank, when the liquid photosensitive resin flows from the inner tank into the leak-proof groove, the liquid level of the photosensitive resin in the inner tank will drop, affecting the printing quality. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a material tank structure for a photopolymer 3D printer.

[0006] The technical solution of this utility model is: a material tray structure for a photopolymerization 3D printer, including a loading frame, a unloading frame, and a connecting component;

[0007] The feeding frame is set on the 3D printer, and the top of the feeding frame is equipped with a release film for supporting the printing material in use.

[0008] The feeding frame is set at the top of the release film and is attached to the release film. The bottom center of the feeding frame is provided with a sealing gasket for sealing the feeding frame and the release film in use.

[0009] The connecting component is located at the bottom of the feeding frame and outside the sealing gasket. The bottom of the connecting component wraps around the outside of the unloading frame and is connected to the unloading frame.

[0010] Preferably, a fixing plate is provided on the side of the feeding frame, and the end of the fixing plate is rotatably installed with bolts that are threadedly connected to the 3D printer.

[0011] Preferably, the bottom of the feeding frame is provided with a step, and the sealing gasket is installed in the step and is attached to the side wall of the step.

[0012] Preferably, the bottom of the feeding frame is provided with multiple connecting rods located in the step, and the top of the unloading frame is provided with multiple slots. The bottom of the connecting rods passes through the release film and the sealing gasket and is inserted into the slot.

[0013] Preferably, the connecting component includes a connecting frame, a connecting plate, and a locking block;

[0014] The connecting frame is installed at the bottom of the feeding frame and is located in the step and wrapped around the outside of the sealing gasket;

[0015] There are multiple connecting plates, which are located at the bottom of the connecting frame and on the side of the unloading frame;

[0016] The card block is located on the side of the connecting plate and connected to the unloading frame.

[0017] Preferably, the side of the feeding frame is provided with a slot, and when the card block and the feeding frame are installed together, the card block is accommodated in the slot.

[0018] Preferably, a screw is provided in the middle of the other side of the connecting plate, and a threaded hole is provided in the middle of the side of the feeding frame, with the end of the screw penetrating the connecting plate and inserted into the threaded hole.

[0019] Preferably, a groove is provided at the bottom side of the feeding frame and below the card slot.

[0020] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0021] This invention uses a pressing feed frame to compress the sealing gasket on the release film, effectively sealing the gap between the feed frame and the release film. Simultaneously, the feed frame moves the connecting component downwards and engages with the unloading frame, fixing the feed frame to the release film. This ensures a stable assembly of the material tray and prevents material from overflowing during printing. Attached Figure Description

[0022] Figure 1 is a perspective view of an embodiment of the present invention.

[0023] Figure 2 is an exploded view of the connection structure between the loading frame and the unloading frame in one embodiment of the present invention.

[0024] Figure 3 is a cross-sectional schematic diagram of the connection structure between the loading frame and the unloading frame in one embodiment of the present invention.

[0025] Figure 4 is a cross-sectional schematic diagram of the connection structure between the connecting rod and the feeding frame in one embodiment of the present invention.

[0026] Figure 5 is a cross-sectional schematic diagram of the connecting component structure in one embodiment of the present invention.

[0027] Reference numerals in the attached drawings: 1. Feeding frame; 2. Release film; 3. Bolt; 4. Fixing plate; 5. Connecting frame; 6. Connecting plate; 7. Screw; 8. Threaded hole; 9. Slot; 10. Groove; 11. Connecting rod; 12. Block; 13. Step; 14. Sealing gasket; 15. Slot; 16. Unloading frame. Detailed Implementation

[0028] Example 1

[0029] As shown in Figures 1-5, the material tray structure of a photopolymerization 3D printer proposed in this utility model includes a feeding frame 1, a discharging frame 16, and a connecting component.

[0030] The feeding frame 16 is set on the 3D printer, and the top of the feeding frame 16 is provided with a release film 2 for supporting the printing material in use.

[0031] The feeding frame 1 is set at the top of the release film 2 and is attached to the release film 2. The bottom center of the feeding frame 1 is provided with a sealing gasket 14 for sealing the feeding frame 1 and the release film 2 in the use state.

[0032] The connecting component is located at the bottom of the loading frame 1 and outside the sealing gasket 14. The bottom of the connecting component wraps around the outside of the unloading frame 16 and is connected to the unloading frame 16.

[0033] In an optional embodiment, a fixing plate 4 is provided on the side of the feeding frame 1, and a bolt 3 that is threadedly connected to the 3D printer is rotatably installed at the end of the fixing plate 4, which is used to fix the material tray to the 3D printer during use.

[0034] In this embodiment, by placing the release film 2 at the top of the unloading frame 16 and placing the loading frame 1 above the release film 2, the loading frame 1 and the connecting assembly are wrapped around the outside of the unloading frame 16. At the same time, the loading frame 1 is pressed, causing the sealing gasket 14 to be compressed on the release film 2. The sealing gasket 14 effectively seals the gap between the loading frame 1 and the release film 2 at the bottom center of the loading frame 1. Simultaneously, the connecting assembly is moved down and engages with the unloading frame 16, so that the connecting assembly fixes the loading frame 1 on the release film 2, thereby achieving a stable assembly of the material slot and ensuring that the material does not overflow during the printing process.

[0035] Example 2

[0036] As shown in Figures 2-4, the present invention proposes a material tray structure for a photopolymerization 3D printer. Compared with the first embodiment, the difference in this embodiment is that a step 13 is provided at the bottom of the feeding frame 1, and a sealing gasket 14 is installed in the step 13 and is attached to the side wall of the step 13. This is used so that the inner bottom of the feeding frame 1 contacts the upper surface of the release film 2 during use, and the sealing gasket 14 is squeezed in the step 13, forming an effective seal between the feeding frame 1 and the release film 2, and reducing the contact area between the sealing gasket 14 and the printing material.

[0037] In an optional embodiment, a plurality of connecting rods 11 are provided at the bottom of the loading frame 1 and in the step 13, and a plurality of slots 15 are provided at the top of the unloading frame 16. The bottom end of the connecting rod 11 passes through the release film 2 and the sealing gasket 14 and is inserted into the slot 15. When the loading frame 1 is placed on the release film 2, the bottom end of the connecting rod 11 passes through the release film 2 and is inserted into the slot 15, so that the position of the release film 2 is limited.

[0038] In this embodiment, by setting a step 13 at the bottom of the feeding frame 1 and placing the sealing gasket 14 in the step 13, the contact area between the sealing gasket 14 and the printing material is minimized when the sealing gasket 14 seals the feeding frame 1 and the release film 2, thus improving the sealing effect and avoiding waste and contamination of the printing material due to excessive contact area. At the same time, by setting a connecting rod 11 through the sealing gasket 14 and the release film 2 in the step 13, the connecting rod 11 limits the position of the sealing gasket 14 and the release film 2, preventing them from shifting during installation.

[0039] Example 3

[0040] As shown in Figures 1-2, the material tank structure of the photopolymerization 3D printer proposed in this utility model differs from that in Embodiment 1 in that the connecting component includes a connecting frame 5, a connecting plate 6, and a card block 12.

[0041] The connecting frame 5 is installed at the bottom of the feeding frame 1 and is located in the step 13 and wrapped around the outside of the sealing gasket 14;

[0042] There are multiple connecting plates 6, which are located at the bottom of the connecting frame 5 and on the side of the unloading frame 16.

[0043] The card block 12 is located on the side of the connecting plate 6 and is connected to the unloading frame 16.

[0044] In an optional embodiment, the side of the unloading frame 16 is provided with a slot 9. When the slot 12 and the unloading frame 16 are installed together, the slot 12 is accommodated in the slot 9. The slot 9 is used to engage with the slot 12 during use, so that the engagement of the slot 9 and the slot 12 limits the connection plate 6, thereby fixing the loading frame 1 on the release film 2 and pressing the loading frame 1 against the release film 2 and the sealing gasket 14 to ensure the sealing between the loading frame 1 and the release film 2.

[0045] In this embodiment, the feeding frame 1 drives the connecting frame 5 to wrap around the outside of the unloading frame 16. When the bottom end of the feeding frame 1 contacts the release film 2 and the feeding frame 1 applies pressure to the sealing gasket 14, the locking block 12 is located on the side of the slot 9 and is locked in the slot 9 by the connecting plate 6. It is also connected to the top of the inner side of the slot 9, so that the feeding frame 1 is fixed on the release film 2 and the sealing between the feeding frame 1 and the release film 2 is improved, ensuring that the printing material does not leak during the photocuring process.

[0046] Example 4

[0047] As shown in Figures 2 and 5, the material tray structure of the photopolymerization 3D printer proposed in this utility model differs from that in Embodiment 3 in that a screw 7 is provided in the middle of the other side of the connecting plate 6, and a threaded hole 8 is provided in the middle of the side of the unloading frame 16. The end of the screw 7 passes through the connecting plate 6 and is inserted into the threaded hole 8. This is used to achieve a stable connection between the connecting plate 6 and the unloading frame 16 through the cooperation of the screw 7 and the threaded hole 8 during use, thereby enhancing the stability of the overall structure and ensuring the reliable operation of the material tray during the printing process.

[0048] In an optional embodiment, a groove 10 is provided at the bottom side of the feeding frame 16 and below the slot 9. The groove 10 is used to bend the bottom end of the connecting plate 6 outward during use, so that the connecting plate 6 drives the card block 12 to separate from the slot 9. This allows for convenient disassembly and replacement of the feeding trough assembly, improves maintenance efficiency, and extends the service life of the equipment.

[0049] In this embodiment, when the connecting plate 6 drives the locking block 12 to slide along the outside of the unloading frame 16 and place it inside the slot 9, the screw 7 passes through the connecting plate 6 and is inserted into the threaded hole 8. The screw 7 and the threaded hole 8 cooperate to fix the connecting plate 6, which further improves the stability of the loading frame 1 during installation. At the same time, during disassembly, the bottom end of the connecting plate 6 is bent outward by the slot 10, and the connecting plate 6 drives the locking block 12 to separate from the slot 9, making the disassembly and assembly of the loading frame 1 more convenient, while ensuring the sealing of the trough structure.

[0050] In this invention, by placing the release film 2 at the top of the unloading frame 16 and placing the loading frame 1 above the release film 2, the loading frame 1 drives the connecting rod 11 through the release film 2 and the sealing gasket 14 and inserts it into the slot 15, thus defining the position of the release film 2 and the sealing gasket 14. The loading frame 1 also causes the connecting frame 5 to wrap around the outside of the unloading frame 16, and the connecting plate 6 and the locking block 12 are located on the side of the unloading frame 16. At the same time, the loading frame 1 is pressed, causing the loading frame 1 to compress the sealing gasket 14 on the release film 2, so that the sealing gasket 14 effectively seals the gap between the loading frame 1 and the release film 2 at the bottom center of the loading frame 1. Simultaneously, the connecting frame 5 is moved down, so that the connecting frame 5 locks the locking block 12 into the slot 9 through the connecting plate 6, thus fixing the loading frame 1 on the release film 2, thereby achieving a stable assembly of the material slot and ensuring that the material does not overflow during the printing process.

[0051] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A feed tank structure for a photopolymer 3D printer, characterized in that, The 3D printer includes a loading frame (1), a unloading frame (16), and a connecting component. The unloading frame (16) is mounted on the 3D printer and has a release film (2) at its top for supporting the printing material during use. The loading frame (1) is mounted on the top of the release film (2) and is attached to the release film (2). The bottom of the loading frame (1) has a sealing gasket (14) at its center for sealing the loading frame (1) and the release film (2) during use. The connecting component is mounted at the bottom of the loading frame (1) and is located outside the sealing gasket (14). The bottom of the connecting component wraps around the outside of the unloading frame (16) and is connected to the unloading frame (16).

2. The material tank structure of a photopolymer 3D printer according to claim 1, characterized in that, A fixing plate (4) is provided on the side of the feeding frame (1), and a bolt (3) that is threadedly connected to the 3D printer is rotatably installed at the end of the fixing plate (4).

3. The material tank structure of a photopolymer 3D printer according to claim 1, characterized in that, The bottom end of the feeding frame (1) is provided with a step (13), and the sealing gasket (14) is installed in the step (13) and is attached to the side wall of the step (13).

4. The material tank structure of a photopolymer 3D printer according to claim 3, characterized in that, Multiple connecting rods (11) are provided at the bottom of the loading frame (1) and in the step (13), and multiple slots (15) are provided at the top of the unloading frame (16). The bottom of the connecting rod (11) passes through the release film (2) and the sealing gasket (14) and is inserted into the slot (15).

5. The material tank structure of a photopolymer 3D printer according to claim 3, characterized in that, The connecting assembly includes a connecting frame (5), a connecting plate (6), and a locking block (12); the connecting frame (5) is installed at the bottom of the loading frame (1) and located in the step (13) and wrapped around the outside of the sealing gasket (14); there are multiple connecting plates (6), which are located at the bottom of the connecting frame (5) and on the side of the unloading frame (16); the locking block (12) is located on the side of the connecting plate (6) and connected to the unloading frame (16).

6. The material tank structure of a photopolymer 3D printer according to claim 5, characterized in that, The side of the feeding frame (16) is provided with a slot (9). When the card block (12) and the feeding frame (16) are installed together, the card block (12) is accommodated in the slot (9).

7. The material tank structure of a photopolymer 3D printer according to claim 5, characterized in that, A screw (7) is provided in the middle of the other side of the connecting plate (6), and a threaded hole (8) is provided in the middle of the side of the feeding frame (16). The end of the screw (7) passes through the connecting plate (6) and is inserted into the threaded hole (8).

8. The material tank structure of a photopolymer 3D printer according to claim 6, characterized in that, A groove (10) is provided at the bottom side of the feeding frame (16) and below the card slot (9).

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