Self-cleaning 3D printing nozzle

Abstract

The utility model belongs to the technical field of nozzle cleaning, and particularly relates to a self-cleaning 3D printing nozzle which comprises a first fixing plate, a printer nozzle is mounted on the first fixing plate, a first support is fixedly connected to the first fixing plate, a first motor is fixedly connected into the first support, and a second motor is fixedly connected into the first support. A small gear is fixedly connected to an output shaft of the first motor, a large gear is rotationally connected to the first fixing plate through a bearing, the large gear is meshed with the small gear, a first fixing block is fixedly connected to the large gear, a second support is fixedly connected to the first fixing block, and a second motor is fixedly connected into the second support; a threaded column is fixedly connected to an output shaft of the second motor. The scraping plate is arranged, the second motor is started, the scraping plate is moved to be tightly attached to the outer wall of the 3D printing spray head, the first motor is started, the first motor drives the small gear to rotate, the small gear drives the large gear to rotate, the large gear drives the scraping plate to rotate around the outer wall of the spray head, and materials on the outer wall of the spray head are scraped off.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of shower head cleaning, specifically a 3D printing shower head of self-cleaning. BACKGROUND

[0002] 3D printer is also called three-dimensional printer, which is a kind of process of rapid prototyping, and the three-dimensional model is made by layering in a layer-by-layer manner. The three-dimensional printer usually uses 3D printing shower head to realize layer-by-layer accumulation and stacking to form a three-dimensional entity by spraying binder or extruding materials such as liquid photosensitive resin material, molten plastic filament and gypsum powder. After the printing work is completed, the printing material will start to cool and solidify due to temperature reduction, and the solidified material will slowly accumulate on the inner and outer walls of the 3D printing shower head, causing working error or even blockage. In order to work normally, cleaning tools need to be used for cleaning.

[0003] The cleaning method of the prior art 3D printing shower head is usually to disassemble the shower head to be cleaned, scrape off the solidified material on the outer wall of the shower head by a scraper, and open the solidified material inside the shower head by a dredging rod, and then reinstall the cleaned shower head on the printer.

[0004] At present, in the prior art, the 3D printing shower head must be disassembled from the printer during cleaning, and then the shower head can be cleaned by cleaning tools. After cleaning, the shower head must be reinstalled on the printer before use, which not only wastes manpower but also wastes time.

[0005] Therefore, a 3D printing shower head of self-cleaning is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] In order to make up for the shortcomings of the prior art, the problem that the 3D printing shower head must be disassembled from the printer, then cleaned by cleaning tools, and then reinstalled on the printer after cleaning is solved, and a 3D printing shower head of self-cleaning is proposed.

[0007] The utility model discloses a technical scheme that solves its technical problem is adopted: A kind of 3D printing nozzle of self-cleaning of the utility model, including first fixed plate, printer nozzle is installed on the first fixed plate, first support is fixedly connected on the first fixed plate, first motor is fixedly connected in the first support, small gear is fixedly connected on the output shaft of first motor, first fixed plate is rotatably connected with large gear by bearing, large gear is engaged with small gear, first fixed block is fixedly connected on the large gear, second support is fixedly connected on the first fixed block, second motor is fixedly connected in the second support, threaded column is fixedly connected on the output shaft of second motor, threaded column is rotatably connected on first fixed block by bearing, scraper is threadedly connected on the threaded column, connecting rod is fixedly connected on the scraper, sliding block is fixedly connected on the connecting rod, second fixed block is fixedly connected on the large gear, second fixed block is equipped with the groove, the sliding block is slidably connected in the groove.

[0008] Preferably, the first fixed block is fixedly connected with a second fixed plate, the second fixed plate is connected with a thin wire, the scraper is fixedly connected with two third fixed blocks, and a dredging rod is rotatably connected between the two third fixed blocks through a rotating shaft, and the dredging rod is connected with the other end of the thin wire.

[0009] Preferably, two fixed frames are fixedly connected in the printer nozzle, and a heating block is fixedly connected between the two fixed frames.

[0010] Preferably, a wire hole is formed in the scraper, and the thin wire is slidably connected in the wire hole.

[0011] Preferably, a fourth fixed block is fixedly connected to the bottom end of the dredging rod, a spring is fixedly connected to the side surface of the fourth fixed block, and the other end of the spring is fixedly connected with the scraper.

[0012] Preferably, a scraper is fixedly connected to the dredging rod, and the scraper is triangular.

[0013] The utility model has the advantages that:

[0014] The utility model provides a kind of 3D printing nozzle of self-cleaning, by being provided with scraper, open second motor, move scraper to the place of sticking printer nozzle outer wall, close second motor, open first motor, first motor drives small gear rotation, small gear drives large gear rotation, large gear drives scraper rotation around nozzle outer wall, scrape material on nozzle outer wall, after cleaning, reverse start second motor, move scraper away from printer nozzle outer wall, when moving to appropriate position, close second motor, printer nozzle can continue to be used, so that nozzle can be cleaned without being disassembled, save manpower and time.

[0015] The utility model provides a 3D printing nozzle of self -cleaning, through setting up dredging rod, when the scraper moves, fine line tension tension, the dredging rod that hangs down is pulled up, by this use the tip of dredging rod that is pulled up from the nozzle of printing nozzle stabs inside, stabs open the material of inside block, after cleaning is completed, withdraws the scraper, fine line is relaxed, spring draws down the dredging rod, the tip of dredging rod can be from the nozzle, this can carry out the time of outer wall cleaning and internal cleaning, has saved manpower and time. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and serve to explain the utility model, and do not constitute improper limitations on the utility model. In the drawings:

[0017] Figure 1 It is the perspective view of the utility model;

[0018] Figure 2 It is the perspective view of the nozzle of the utility model;

[0019] Figure 3 It is the perspective view of the outer wall cleaning subassembly of the utility model;

[0020] Figure 4 It is the perspective view of the local part A of the utility model;

[0021] Figure 5 It is the perspective view of the internal cleaning subassembly of the utility model;

[0022] Figure 6 It is the perspective view of the local part B of the utility model;

[0023] Legend:

[0024] 1, first fixed plate, 2, printer nozzle, 3, heating block, 4, first support, 5, first motor, 6, pinion, 7, gear, 8, first fixed block, 9, second support, 10, second motor, 11, threaded column, 12, scraper, 13, connecting rod, 14, sliding block, 15, second fixed block, 16, sliding slot, 17, second fixed plate, 18, wire hole, 19, fine line, 20, dredging rod, 21, third fixed block, 22, fourth fixed block, 23, spring, 24, scraper. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] The specific embodiments are given below.

[0027] Please refer to Figures 1-6 The utility model provides a kind of 3D printing nozzle of self-cleaning, including a kind of 3D printing nozzle of self-cleaning, including first fixed plate 1, printer nozzle 2 is installed on the first fixed plate 1, first support 4 is fixedly connected on the first fixed plate 1, it is characterized by: first motor 5 is fixedly connected in the first support 4, small gear 6 is fixedly connected on the output shaft of first motor 5, large gear 7 is rotatably connected on the first fixed plate 1 by bearing, large gear 7 is engaged with small gear 6, first fixed block 8 is fixedly connected on large gear 7, second support 9 is fixedly connected on the first fixed block 8, second motor 10 is fixedly connected in the second support 9, threaded column 11 is fixedly connected on the output shaft of second motor 10, threaded column 11 is rotatably connected on first fixed block 8 by bearing, scraper 12 is threadedly connected on threaded column 11, connecting rod 13 is fixedly connected on scraper 12, sliding block 14 is fixedly connected on connecting rod 13, second fixed block 15 is fixedly connected on large gear 7, sliding slot 16 is formed in second fixed block 15, sliding block 14 is slidably connected in sliding slot 16;

[0028] When working, start second motor 10, second motor 10 drives threaded column 11 to rotate by output shaft, drives scraper 12 to move on threaded column 11, sliding block 14 slides in sliding slot 16 along with scraper 12, to prevent scraper 12 from deviating, when scraper 12 moves to tightly contact with the outer wall of printer nozzle 2, close second motor, start first motor 5, the output shaft of first motor 5 drives small gear 6 to rotate, small gear 6 drives large gear 7 to rotate, drives scraper 12 to rotate on the outer wall of printer nozzle 2, and the material softened on the outer wall is scraped off by rotating scraper 12, after cleaning, close heating block 3, close first motor 5, start second motor 10 reversely, scraper 13 starts to move away from printer nozzle 2, when scraper 12 returns to appropriate position, close second motor 10.

[0029] Further, as Figure 1 , Figure 5 and Figure 6As shown, the first fixed block 8 is fixedly connected with a second fixed plate 17, the second fixed plate 17 is connected with a thin wire 19, the scraper 12 is fixedly connected with two third fixed blocks 21, the two third fixed blocks 21 are rotatably connected with a dredging rod 20 through a rotating shaft, and the dredging rod 20 is connected with the other end of the thin wire 19.

[0030] In work, the thin wire 19 is slowly straightened while the scraper 12 moves, the dredging rod 20 connected with the thin wire 19 is slowly lifted, when the scraper 12 moves to tightly contact with the outer wall of the printer head 2, the second motor is turned off, at this time, the thin wire 19 is completely straightened, the dredging rod 20 is completely lifted, the spring 23 is stretched, the tip of the dredging rod 20 is poked into the inside from the nozzle of the printer head 2, the first motor 5 is started to drive the scraper 12 to rotate, the dredging rod 20 rotates with it, the dredging rod 20 pokes open the blocked material inside, the scraper 12 starts to move away from the printer head 2, the thin wire 19 is slowly loosened, the spring 23 is retracted to drive the fourth fixed block 22 to move, the fourth fixed block 22 drives the dredging rod 20 to be lowered, and the tip of the dredging rod 20 is separated from the nozzle of the printer head 2.

[0031] Further, as shown in Figure 2 , the printer head 2 is fixedly connected with a heating block 3, and the bottom end of the heating block 3 is in contact with the top end of the first fixed plate 1.

[0032] In work, before cleaning, the heating block 3 needs to be turned on to soften the solidified material adhered to the inside and the outer wall of the printer head 2, and after cleaning, the heating block 3 is turned off, and the printer head 2 is slowly cooled.

[0033] Further, as shown in Figure 1 , Figure 3 and Figure 5 , the scraper 12 is provided with a wire passing hole 18, and the thin wire 19 is slidably connected in the wire passing hole 18.

[0034] In work, the thin wire 19 connected with the fixed plate 17 is connected with the dredging rod 20 through the wire passing hole 18, when the scraper 12 moves, the thin wire 19 is stretched and loosened, the thin wire 19 is lifted when stretched, and the dredging rod 20 is lowered when loosened.

[0035] Further, as shown in Figure 1 , Figure 5 and Figure 6 , the bottom end of the dredging rod 20 is fixedly connected with a fourth fixed block 22, the side surface of the fourth fixed block 22 is fixedly connected with a spring 23, and the other end of the spring 23 is fixedly connected with the scraper 12.

[0036] When the scraper 12 moves towards the printer head 2, the thin wire 19 is slowly pulled tight, the thin wire 19 pulls the dredging rod 20, the fourth fixed block 22 is pulled up, the fourth fixed block 22 stretches the spring 23, after cleaning, the scraper 12 starts to move away from the printer head 2, the thin wire 19 is slowly relaxed, the spring 23 is retracted, driving the fourth fixed block 22 to move, the fourth fixed block 22 drives the dredging rod 20 to lower, the tip of the dredging rod 20 is away from the nozzle of the printer head 2.

[0037] Further, as shown in Figure 1 、 Figure 5 and Figure 6 , the dredging rod 20 is fixed with a scraper 24, and the scraper 24 is arranged in a triangular shape.

[0038] When the scraper 12 approaches the printer head 2, the scraper 24 is lifted with the dredging rod 20 and pokes into the nozzle of the printer head 2, then the first motor is turned on, the dredging rod 20 rotates to drive the scraper 24 to rotate, the rotating scraper 24 will scrape off the internal material, after cleaning, the scraper 12 moves away from the printer head 2, the scraper 24 slowly falls with the dredging rod 20 and is away from the nozzle.

[0039] Working principle: first, the printer head 2 inner wall and outer wall is softened by the heating block 3, the second motor 10 is started, the second motor 10 drives the threaded column 11 to rotate through the output shaft, driving the scraper 12 to move on the threaded column 11, the sliding block 14 slides in the sliding groove 16 with the scraper 12 to prevent the scraper 12 from deviating, while the scraper 12 is moving, the thin wire 19 is slowly straightened, the dredging rod 20 connected with the thin wire 19 is slowly pulled up, when the scraper 12 moves to closely contact with the outer wall of the printer head 2, the second motor is turned off, at this time, the thin wire 19 is completely straightened, the dredging rod 20 is completely pulled up, the spring 23 is stretched, the tip of the dredging rod 20 pokes into the inside from the nozzle of the printer head 2, the first motor 5 is started, the output shaft of the first motor 5 drives the pinion 6 to rotate, the pinion 6 drives the gear 7 to rotate, driving the scraper 12 to rotate on the outer wall of the printer head 2, the rotating scraper 12 scrapes off the softened material on the outer wall, the dredging rod 20 rotates accordingly, the dredging rod 20 pokes open the internal blocked material, the scraper 24 on the dredging rod 20 scrapes off the internal material, after cleaning, the heating block 3 is turned off, the first motor 5 is turned off, the second motor 10 is started in reverse, the scraper 12 starts to move away from the printer head 2, the thin wire 19 is slowly relaxed, the spring 23 is retracted, driving the fourth fixed block 22 to move, the fourth fixed block 22 drives the dredging rod 20 to lower, the tip of the dredging rod 20 is away from the nozzle of the printer head 2, when the scraper 12 returns to the appropriate position, the second motor 10 is turned off, and the printer can be used normally.

[0040] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A self-cleaning 3D printing nozzle, comprising a first fixed plate (1), a printer nozzle (2) is installed on the first fixed plate (1), a first support (4) is fixedly connected on the first fixed plate (1), characterized in that: The first support (4) is fixedly connected with a first motor (5), the output shaft of the first motor (5) is fixedly connected with a pinion (6), the first fixed plate (1) is rotatably connected with a gear (7) through a bearing, the gear (7) is engaged with the pinion (6), the gear (7) is fixedly connected with a first fixed block (8), the first fixed block (8) is fixedly connected with a second support (9), the second support (9) is fixedly connected with a second motor (10), the output shaft of the second motor (10) is fixedly connected with a threaded column (11), the threaded column (11) is rotatably connected to the first fixed block (8) through a bearing, the threaded column (11) is threadedly connected with a scraper (12), the scraper (12) is fixedly connected with a connecting rod (13), the connecting rod (13) is fixedly connected with a sliding block (14), the gear (7) is fixedly connected with a second fixed block (15), the second fixed block (15) is provided with a sliding groove (16), and the sliding block (14) is slidably connected in the sliding groove (16).

2. The self-cleaning 3D printing nozzle of claim 1, wherein: The first fixed block (8) is fixedly connected with a second fixed plate (17), the second fixed plate (17) is connected with a thin wire (19), the scraper (12) is fixedly connected with two third fixed blocks (21), the two third fixed blocks (21) are rotatably connected with a dredging rod (20) through a rotating shaft, and the dredging rod (20) is connected with the other end of the thin wire (19).

3. A self-cleaning 3D printing nozzle according to claim 2, wherein: The printer nozzle (2) is fixedly connected with a heating block (3), and the bottom end of the heating block (3) is in contact with the top end of the first fixed plate (1).

4. The self-cleaning 3D printing nozzle of claim 3, wherein: The scraper (12) is provided with a wire hole (18), and the thin wire (19) is slidably connected in the wire hole (18).

5. A self-cleaning 3D printing nozzle according to claim 4, wherein: The bottom end of the dredging rod (20) is fixedly connected with a fourth fixed block (22), the side surface of the fourth fixed block (22) is fixedly connected with a spring (23), and the other end of the spring (23) is fixedly connected with the scraper (12).

6. A self-cleaning 3D printing nozzle according to claim 5, wherein: The dredging rod (20) is fixedly connected with a scraper blade (24), and the scraper blade (24) is triangular.

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