Material storage device for photocuring 3D printer

Abstract

The utility model relates to the technical field of 3D printing, in particular to a storage device for a photocuring 3D printer, which comprises a storage box and a discharge pipe communicated with one side of the storage box, the surface of the discharge pipe is in threaded connection with a discharge barrel, a sealing mechanism is arranged in the discharge barrel, and the discharge barrel is provided with a sealing groove. A scraping plate is slidably connected to the interior of the storage box, the edge of the scraping plate is tightly attached to the inner wall of the storage box, a cover plate is movably connected to the other side of the storage box, and a fixing mechanism is arranged between the cover plate and the storage box; the cover plate is communicated with the movable pipe through the through hole to facilitate passing of raw materials, the sealing block is fixed at one end of the movable pipe, the movable pipe is matched with the sealing block to realize discharging after connection and automatic sealing when the movable pipe is pulled out, and the circular plate on the screw rod can be matched with the circular groove to realize quick disassembly of the cover plate. And the scraping plate can scrape off the residual raw materials on the inner wall of the material storage box under the gravity, so that the leakage of the raw materials and the residues on the inner wall can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a material storage device for a stereolithography 3D printer. Background Art

[0002] Stereolithography 3D printing technology is a three-dimensional printing technology widely used in modern technology. Through the raw material photosensitive resin irradiated by an ultraviolet lamp, it scans along the contour track of the slice layer cross-section of the workpiece to be processed, generates a photopolymerization reaction, thereby forming multiple thin cross-sections stacked layer by layer, and then obtaining a complete workpiece model. Currently, there are mainly two feeding methods for stereolithography 3D printers. One is the machine extraction feeding method, and the other is to place the raw material bottle upside down, and the raw material bottle is higher than the position of the material tank. A catheter is used to connect the raw material bottle and the material tank. When the liquid level of the raw material in the material tank is lower than the outlet of the catheter, the raw material will automatically flow out from the raw material bottle to the material tank.

[0003] The currently used material storage device usually stores the raw materials in the form of a storage box. For example, an automatic feeding system for a stereolithography 3D printer disclosed in the Chinese Patent Publication No. "CN219789306U" includes a first detection device, a second detection device, a material storage device, a discharging device, a pressure regulating device, a control device, a connecting air pipe and a connecting liquid pipe; the control device is electrically connected to the first detection device, the second detection device and the pressure regulating device respectively; the pressure regulating device is connected to the material storage device through the connecting air pipe.

[0004] Although the currently used material storage device with gravity feeding can achieve automatic feeding, the storage opening of the storage box cannot be automatically sealed when inserted or pulled out, and raw materials are likely to leak out. Moreover, raw materials are likely to remain on the inner wall of the storage box during slow discharging, affecting the storage space of the storage box. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems in the prior art that the storage opening of the storage box cannot be automatically sealed when inserted or pulled out, raw materials are likely to leak out, and raw materials are likely to remain on the inner wall of the storage box during slow discharging, affecting the storage space of the storage box, etc., and to propose a material storage device for a stereolithography 3D printer.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A material storage device designed for a light-curing 3D printer, including a material storage box and a discharge pipe connected to one side of the material storage box. The surface of the discharge pipe is threadedly connected with a discharge cylinder. A sealing mechanism is provided inside the discharge cylinder. A scraper is slidably connected inside the material storage box, and the edge of the scraper is closely attached to the inner wall of the material storage box. A cover plate is movably connected to the other side of the material storage box, and a fixing mechanism is provided between the cover plate and the material storage box.

[0008] Further, the sealing mechanism includes a movable pipe and a sealing seat. The sealing seat is fixed to the inner wall of the discharge cylinder. Protrusions are fixed on both the upper and lower sides of the movable pipe. A sliding groove is opened inside the sealing seat, and the sliding groove is slidably connected with the protrusions. A spring is provided inside the sliding groove, and both ends of the spring are in contact with the sliding groove and the protrusions respectively. A number of through holes are opened on the surface of the movable pipe, and a sealing block is fixed to one end of the movable pipe.

[0009] Further, a rubber ring is sleeved on the surface of the sealing block, and the other side of the rubber ring is in contact with the sealing seat.

[0010] Further, the fixing mechanism includes a number of side plates and mounting blocks. The number of side plates is fixed to the surface of the material storage box. The number of mounting blocks is fixed around the cover plate and corresponds to the side plates one by one. A screw rod is hinged inside the side plate. Grooves for fitting the screw rod are opened on the surfaces of the side plate and the mounting block. A round plate is threadedly connected to the surface of the screw rod. A fixing ring is fixed to one side of the round plate. A circular groove is opened on one side of the mounting block, and the round plate is movably connected with the circular groove.

[0011] Further, a limiting plate is fixed to the outside of the screw rod, and the diameter of the limiting plate is larger than the diameter of the screw rod.

[0012] Further, gaskets are provided at the edge of the scraper, and a number of ventilation holes are opened on the surface of the scraper.

[0013] The beneficial effects of the material storage device for a light-curing 3D printer proposed by the present utility model are as follows: In the present utility model, the through holes are communicated with the movable pipe to facilitate the passage of raw materials. A sealing block is fixed to one end of the movable pipe. The movable pipe and the sealing block can achieve discharging after connection and automatically seal when pulled out. The round plate on the screw rod can cooperate with the circular groove to realize the rapid disassembly of the cover plate. The scraper will scrape the raw materials remaining on the inner wall of the material storage box under the action of gravity, which can effectively avoid the leakage of raw materials and the residue on the inner wall. Brief Description of the Drawings

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model Figure 1 ;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the present utility model Figure 2;

[0016] Figure 3 Schematic three-dimensional structure diagram of the present utility model Figure 3 ;

[0017] Figure 4 The present utility model Figure 2 Partial enlarged view at position A in the present utility model;

[0018] Figure 5 The present utility model Figure 3 Partial enlarged view at position B in the present utility model.

[0019] In the figure: 1, storage box; 2, discharge pipe; 3, discharge cylinder; 4, sealing mechanism; 41, movable pipe; 42, sealing seat; 43, convex block; 44, chute; 45, through hole; 46, sealing block; 47, spring; 5, scraping plate; 6, cover plate; 7, fixing mechanism; 71, side plate; 72, mounting block; 73, screw; 74, groove; 75, circular plate; 76, fixing ring; 77, circular groove; 8, rubber ring; 9, limiting plate; 10, washer; 11, ventilation hole. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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 of the embodiments.

[0021] Referring to Figures 1-5 , a storage device for a light-curing 3D printer includes a storage box 1 and a discharge pipe 2 connected to one side of the storage box 1. The surface of the discharge pipe 2 is threadedly connected with a discharge cylinder 3. A sealing mechanism 4 is provided inside the discharge cylinder 3. A scraping plate 5 is slidably connected inside the storage box 1, and the edge of the scraping plate 5 is in close contact with the inner wall of the storage box 1. A cover plate 6 is movably connected to the other side of the storage box 1. A fixing mechanism 7 is provided between the cover plate 6 and the storage box 1; the storage device is communicated with the movable pipe 41 through a through hole to facilitate the passage of raw materials. A sealing block 46 is fixed at one end of the movable pipe 41. The movable pipe 41 and the sealing block 46 can achieve discharging after connection and automatically seal when pulled out. The circular plate 75 on the screw 73 can cooperate with the circular groove 77 to realize the quick disassembly of the cover plate 6. The scraping plate 5 will scrape off the raw materials remaining on the inner wall of the storage box 1 under the action of gravity, which can effectively avoid the leakage of raw materials and the residue on the inner wall.

[0022] In this embodiment, the sealing mechanism 4 includes a movable pipe 41 and a sealing seat 42. The movable pipe 41 slides inside the sealing seat 42. The sealing seat 42 is fixed to the inner wall of the discharge cylinder 3. Convex blocks 43 are fixed on both the upper and lower sides of the movable pipe 41. A sliding groove 44 is formed inside the sealing seat 42, and the sliding groove 44 is slidably connected to the convex blocks 43. A spring 47 is arranged inside the sliding groove 44, and both ends of the spring 47 abut against the sliding groove 44 and the convex blocks 43 respectively. A number of through holes 45 are formed on the surface of the movable pipe 41, and the through holes are communicated with the movable pipe 41 to facilitate the passage of raw materials. A sealing block 46 is fixed to one end of the movable pipe 41. The movable pipe 41 and the sealing block 46 can achieve discharging after connection and automatically seal when pulled out.

[0023] Furthermore, a rubber ring 8 is sleeved on the surface of the sealing block 46, and the other side of the rubber ring 8 abuts against the sealing seat 42. The rubber ring 8 can greatly enhance the sealing performance between the sealing block 46 and the sealing seat 42 and prevent raw materials from leaking out.

[0024] Furthermore, the fixing mechanism 7 includes a number of side plates 71 and mounting blocks 72. A number of the side plates 71 are fixed to the surface of the storage box 1. A number of mounting blocks 72 are fixed around the cover plate 6 and correspond to the side plates 71 one by one. A screw rod 73 is hinged inside the side plates 71. Grooves 74 for fitting the screw rod 73 are formed on the surfaces of the side plates 71 and the mounting blocks 72. A round plate 75 is threadedly connected to the surface of the screw rod 73. A fixing ring 76 is fixed to one side of the round plate 75. A circular groove 77 is formed on one side of the mounting block 72. The round plate 75 is movably connected to the circular groove 77. The screw rod 73 can be rotated into the circular groove 77, and fixing is achieved by rotating the round plate 75 to make it embed into the circular groove 77.

[0025] In addition, a limiting plate 9 is fixed to the outer side of the screw rod 73. The diameter of the limiting plate 9 is larger than that of the screw rod 73. The limiting plate 9 can limit the round plate 75 and prevent the round plate 75 from detaching from the screw rod 73.

[0026] It should be noted that a washer 10 is arranged at the edge of the scraper 5. A number of ventilation holes 11 are formed on the surface of the scraper 5. The washer 10 has a certain elasticity and can better fit the inner wall of the storage box 1.

[0027] Working mode: When loading materials for printing, the operator only needs to insert the discharge tube 3 on one side of the storage box 1 onto the discharge ejector pin on the printer. The ejector pin can inwardly squeeze the movable tube 41, and the movable tube 41 can drive the convex block 43 to squeeze the spring 47. When the through hole 45 pushes out the sealing seat 42, discharging can be carried out. The raw materials inside the storage box 1 are discharged and printed through the through hole 45 and the movable tube 41. When the storage box 1 is pulled out, the movable tube 41 resets, and the sealing seat 42 reseals the through hole 45 to achieve sealing. At the same time of discharging, the scraper 5 inside the storage box 1 will scrape off the raw materials remaining on the inner wall of the storage box 1 under gravity. When refilling materials next time, the scraper 5 needs to be pushed back to the bottom again. When disassembling the cover plate 6, only need to unscrew the round plate 75 and screw it out from the circular groove 77, then the screw rod 73 can be rotated to complete the disassembly of the cover plate 6.

[0028] The above is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A material storage device for a light-curing 3D printer, comprising a material storage box (1) and a material discharge pipe (2) connected to one side of the material storage box (1), characterized in that: The surface of the discharge pipe (2) is threadedly connected to a discharge barrel (3), a sealing mechanism (4) is provided inside the discharge barrel (3), a scraper (5) is slidably connected inside the storage box (1), and the edge of the scraper (5) is tightly fitted with the inner wall of the storage box (1), and a cover plate (6) is movably connected to the other side of the storage box (1), and a fixing mechanism (7) is provided between the cover plate (6) and the storage box (1).

2. The material storage device for a light-curing 3D printer according to claim 1, characterized in that: The sealing mechanism (4) comprises a movable tube (41) and a sealing seat (42), wherein the sealing seat (42) is fixed to the inner wall of the discharge barrel (3), and protrusions (43) are fixed on both the upper and lower sides of the movable tube (41), and a sliding groove (44) is provided on the inner side of the sealing seat (42), and the sliding groove (44) is slidably connected with the protrusion (43), and a spring (47) is provided inside the sliding groove (44), and the two ends of the spring (47) are respectively in contact with the sliding groove (44) and the protrusion (43), and a plurality of through holes (45) are provided on the surface of the movable tube (41), and a sealing block (46) is fixed to one end of the movable tube (41).

3. The material storage device for a light-curing 3D printer according to claim 2, characterized in that: A rubber ring (8) is sleeved on the surface of the sealing block (46), and the other side of the rubber ring (8) is in contact with the sealing seat (42).

4. The material storage device for a light-curing 3D printer according to claim 1, characterized in that: The fixing mechanism (7) comprises a plurality of side plates (71) and mounting blocks (72), wherein the plurality of side plates (71) are fixed to the surface of the material storage box (1), and the plurality of mounting blocks (72) are fixed to the periphery of the cover plate (6) and correspond to the side plates (71) one by one, a screw rod (73) is hingedly connected to the inner side of the side plate (71), and a groove (74) for fitting the screw rod (73) is provided on the surface of the side plate (71) and the mounting block (72), and a circular plate (75) is threadedly connected to the surface of the screw rod (73), a fixing ring (76) is fixed to one side of the circular plate (75), and a circular groove (77) is provided on one side of the mounting block (72), and the circular plate (75) is movably connected to the circular groove (77).

5. The material storage device for a light-curing 3D printer according to claim 4, characterized in that: A limiting plate (9) is fixed on the outer side of the screw rod (73), and the diameter of the limiting plate (9) is greater than the diameter of the screw rod (73).

6. The material storage device for a light-curing 3D printer according to claim 1, characterized in that: A gasket (10) is provided on the edge of the scraper (5), and a plurality of ventilation holes (11) are provided on the surface of the scraper (5).

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