Scraper assembly for photocuring 3D forming printer

Abstract

A groove is formed in an installation base, the bottom of the groove is open, scraper plates are symmetrically arranged on the lower surface of the installation base and located on the two sides of the groove, an inner scraper plate is movably arranged in the installation base, and the side wall of the inner scraper plate is tightly matched with the inner wall of the groove. Guide rods are connected to the two ends of the upper surface of the inner scraper and penetrate through the upper portion of the mounting base, the top ends of the guide rods are connected with the pressing plate, first positioning holes are formed in the two ends of one side of the mounting base and located on the upper portion of the groove, and second positioning holes are formed in the two ends of the side, provided with the first positioning holes, of the inner scraper; the scraper is reasonable in structure, when the interior of the groove of the installation base needs to be cleaned, the positioning pin is taken down, the pressing plate is directly pressed, resin on the inner wall of the groove in the installation base can be scraped off through the inner scraper body, the whole scraper does not need to be disassembled, and the scraper is convenient to use. And the convenience and the cleaning efficiency are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printer doctor blade technical field, concretely is a kind of doctor blade assembly for light-cured 3D forming printer. BACKGROUND

[0002] Light-cured 3D forming printer is a kind of equipment using light source (such as laser or projector) to solidify specific material to manufacture three-dimensional object, and the material of light-cured 3D forming printer usually adopts photosensitive resin, which is composed of polymer monomer and prepolymer, usually liquid, and contains photo-initiator (photosensitizer). Under the irradiation of specific wavelength ultraviolet, photosensitive resin will occur.

[0003] In the process of light-cured 3D printing, the object in the forming process is generally scraped flat by the doctor blade assembly moving back and forth above the pool body, so as to ensure the continuous and stable forming of the object, and when the internal groove of the doctor blade assembly adheres to the resin and needs to be cleaned, the doctor blade assembly is usually disassembled as a whole, so that the doctor blade cleaning is not convenient enough, therefore, an improved technology is urgently needed to solve the problem existing in the prior art. SUMMARY

[0004] The utility model discloses a kind of doctor blade assemblies for light-cured 3D forming printer, when the groove in mounting seat needs to be cleaned, remove positioning pin and directly press pressing plate, and resin on the inner wall of the groove in mounting seat can be scraped off by inner scraper, without disassembling the whole doctor blade, greatly improve the convenience and cleaning efficiency, to solve the problem proposed in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of doctor blade assembly for light-cured 3D forming printer, including mounting seat, doctor blade plate and inner scraper, the recess is set in the inside of the mounting seat, the bottom of the recess is open, the doctor blade plate is symmetrically set in the recess on the lower surface of the mounting seat, the inner scraper is movably arranged in the mounting seat, the side wall of the inner scraper is tightly matched with the inner wall of the recess, the two ends of the upper surface of the inner scraper are connected with guide rod, the guide rod is arranged on the upper portion of the mounting seat, the top of the guide rod is connected with pressing plate, the first positioning hole is set in the upper portion position of the recess on the two ends of one side of the mounting seat, the second positioning hole is set in the two ends of the inner scraper on the side of the mounting seat where the first positioning hole is set, the first positioning hole and the second positioning hole are correspondingly matched and matched by positioning pin.

[0006] Preferably, the utility model provides a kind of doctor blade assembly for light-cured 3D forming printer, wherein the two ends of the mounting seat are also provided with guide rail sliding block by fastener.

[0007] Preferably, the utility model provides a scraper assembly for light curing 3D forming printer, wherein the through hole is arranged in the recess in the middle position of the mounting seat.

[0008] Preferably, the utility model provides a scraper assembly for light curing 3D forming printer, wherein the through hole is arranged in the recess in the middle position of the mounting seat.

[0009] Preferably, the utility model provides a scraper assembly for light curing 3D forming printer, wherein the outer side of the scraper plate is inclined plane.

[0010] Preferably, the utility model provides a scraper assembly for light curing 3D forming printer, wherein the both ends of the guide rod are fastened and connected with the inner scraper plate and the pressing plate through bolt respectively.

[0011] Preferably, the utility model provides a scraper assembly for light curing 3D forming printer, wherein the through hole is arranged in the recess in the middle position of the mounting seat.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The recess is arranged in the mounting seat, the inner scraper plate is movably arranged in the recess of the mounting seat, the outer wall of the inner scraper plate is tightly connected with the inner wall of the recess, the guide rod is connected with the top of the inner scraper plate, the guide rod is slidably connected with the guide hole of the mounting seat, when the recess in the mounting seat needs to be cleaned, the positioning pin is removed and directly pressed the pressing plate, so that the resin on the inner wall of the recess in the mounting seat is scraped off through the inner scraper plate, the whole scraper does not need to be disassembled, and the convenience and cleaning efficiency are greatly improved. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the structural schematic diagram of the utility model;

[0015] Figure 2 It is the front view cross section structural schematic diagram of the utility model;

[0016] Figure 3 It is the side view cross section structural schematic diagram of the utility model;

[0017] Figure 4 It is the structural schematic diagram of the mounting seat;

[0018] Figure 5 It is the angle transformation structural schematic diagram of the utility model; Figure 4

[0019] Figure 6 It is the structural schematic diagram of the inner scraper plate;

[0020] Figure 7 It is the installation position schematic diagram of the utility model.​

[0021] In the figure: mounting seat 1, scraper plate 2, inner scraper plate 3, groove 4, guide rod 5, pressing plate 6, first positioning hole 7, second positioning hole 8, positioning pin 9, guide rail slider 10, through hole 11, flow hole 12, guide hole 13. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] It should be noted that in the description of the present application, it should be noted that the terms "inner", "outer", "upper", "lower", "two sides", "one end", "the other end", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0024] Please refer to Figures 1-7The utility model provides a technical scheme: a scraper assembly for photocuring 3D forming printer, including mounting seat 1, scraper plate 2 and inner scraper plate 3, the recess 4 is set up in mounting seat 1 inside, the bottom of recess 4 is open, and the scraper plate 2 is set up in the recess 4 both sides of mounting seat 1 lower surface and is symmetrical, the outside of scraper plate 2 is inclined plane, so as to scrape the resin on the upper surface when the article formation, inner scraper plate 3 is movably arranged in mounting seat 1, and the inner wall of recess 4 is tightly matched with the side wall of inner scraper plate 3, and a plurality of flow holes 12 are set up in the vertical direction of inner scraper plate 3, on the one hand realize exhaust, on the other hand make the resin located above inner scraper plate 3 discharge from flow hole 12, the both ends of the upper surface of inner scraper plate 3 are connected with guide rod 5, and guide rod 5 is set on the upper portion of mounting seat 1, a plurality of guide holes 13 are set up in the top of mounting seat 1, and guide rod 5 and guide hole 13 are one-to-one corresponding and are guidedly matched with guide hole 13, so as to guarantee the guiding stability of guide rod 5, and the top end of guide rod 5 is connected with pressing plate 6, and the both ends of guide rod 5 are fastened with inner scraper plate 3 and pressing plate 6 respectively through bolt, so as to realize the connection and disassembly of guide rod 5, inner scraper plate 3 and pressing plate 6, and the both ends of mounting seat 1 and the upper portion position of recess 4 set up first positioning hole 7, and the both ends of inner scraper plate 3 set up second positioning hole 8 on the side of mounting seat 1 and first positioning hole 7, and first positioning hole 7 and second positioning hole 8 correspond to each other and are matched through positioning pin 9, and the both ends of mounting seat 1 are also provided with guide rail sliding block 10 through fastener, and the linear guide rail of the both sides of pool body of photocuring 3D forming printer is matched with guide rail sliding block 10, so as to realize the translation of scraper mechanism, and the through hole 11 is set up in the middle position of mounting seat 1 and recess 4, so as to realize exhaust, so as to guarantee that the resin can enter recess 4 or discharge from recess 4 in the scraping process.

[0025] The assembling method and using principle are as follows: firstly, the bottom end of the guide rod 5 is connected with the inner scraper 3, then the inner scraper 3 is inserted into the groove 4 of the mounting seat 1, and the guide rod 5 is inserted through the guide hole 13 at the top of the mounting seat 1, then the pressing plate 6 is connected with the top end of the guide rod 5 through bolts, the pressing plate 6 is pulled to the top end, the upper surface of the inner scraper 3 is abutted against the top of the groove 4, at this time, the first positioning hole 7 and the second positioning hole 8 are one-to-one corresponding, the positioning pin 9 is inserted through the second positioning hole 8 and inserted into the first positioning hole 7 of the inner scraper 3, and the position of the inner scraper 3 is fixed, finally, the scraper plate 2 is installed at the bottom of the mounting seat 1 through bolts, and the guide rail sliding block 10 is installed at the two ends of the mounting seat 1 through fixing members, and the assembling is completed, when in use, the scraper assembly is located at the top of the pool body of the photocuring 3D printer, the guide rail sliding block 10 is matched with the guide rail, and the two ends of the mounting seat 1 are also connected with the conveying belt through fastening members, so that horizontal movement is realized, in the photocuring 3D printing process, when the object is gradually formed, the scraper plate is translated back and forth at the top of the object, so that the top of the object is ensured to be flat during the forming process, when the groove 4 of the mounting seat 1 needs to be cleaned, the positioning pin 9 is pulled out, and the pressing plate 6 is pressed downwards, so that the inner scraper 3 is lowered along the groove 4, and the resin on the inner wall of the groove 4 is scraped off.

[0026] The parts not described in the utility model are the known technology of the person skilled in the art.

[0027] Finally, it should be noted that: the above specific embodiments are only used to illustrate the technical scheme of the utility model and are not limited, although the utility model is described in detail with reference to the embodiments, the person skilled in the art should understand that the technical scheme of the utility model can be modified and replaced equivalently without departing from the spirit and range of the technical scheme of the utility model, and all should be covered in the claim range of the utility model.

Claims

1. A doctor blade assembly for a light-cured 3D modeling printer, characterized by: Including the mounting seat (1), the scraper plate (2) and the inner scraper plate (3), the mounting seat (1) is internally provided with recess (4), the bottom of recess (4) is open, the lower surface of mounting seat (1) and the both sides of recess (4) are provided with scraper plate (2), the inner scraper plate (3) is movably arranged in mounting seat (1), the side wall of inner scraper plate (3) is closely matched with the inner wall of recess (4), the both ends of the upper surface of inner scraper plate (3) are connected with guide rod (5), guide rod (5) is arranged in the upper portion of mounting seat (1), the top end of guide rod (5) is connected with pressing plate (6), the both ends of one side of mounting seat (1) and the upper portion of recess (4) are provided with first positioning hole (7), the both ends of one side of inner scraper plate (3) and the first positioning hole (7) of mounting seat (1) are provided with second positioning hole (8), the first positioning hole (7) and the second positioning hole (8) are correspondingly matched and matched through positioning pin (9).

2. The scraper assembly for a photocuring 3D modeling printer according to claim 1, characterized in that: The both ends of mounting seat (1) are also provided with guide rail sliding block (10) through fastener.

3. The scraper assembly for a light-cured 3D modeling printer according to claim 1, wherein: The middle position of mounting seat (1) and recess (4) are provided with through hole (11).

4. The scraper assembly for a photocuring 3D modeling printer according to claim 1, wherein: The inner scraper plate (3) is provided with a plurality of flow holes (12) in the vertical direction.

5. The scraper assembly for a light-cured 3D modeling printer according to claim 1, wherein: The outer side of scraper plate (2) is inclined surface.

6. The scraper assembly for a light-cured 3D modeling printer according to claim 1, wherein: The both ends of guide rod (5) are fastened and connected with inner scraper plate (3) and pressing plate (6) through bolt respectively.

7. The scraper assembly for a light-cured 3D modeling printer according to claim 1, wherein: The top of mounting seat (1) is provided with a plurality of guide holes (13), and the guide rod (5) is correspondingly matched with the guide hole (13).

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