Printing nozzle mounting and walking mechanism for large 3D printer

Abstract

The utility model relates to the field of spray head mounting devices for 3D (three-dimensional) printers, in particular to a printing spray head mounting traveling mechanism for a large 3D printer, which comprises a bearing and supporting part, a fixed rack, a first guide rail, a second guide rail, a bearing side plate and a spray head driving and mounting part, a fixed rack is installed on the upper portion of the bearing supporting part and connected with the bearing supporting part through a bolt, and a spray head drive mounting part is installed on the fixed rack, the first guide rail and the second guide rail, so that the spray head drive mounting part can be effectively prevented from shaking in the moving process, and the moving stability of the spray head drive mounting part is guaranteed; stable mounting and supporting of the printing nozzle for the large 3D printer are achieved, then the printing quality precision of the large printing nozzle is guaranteed, and printing deviation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of nozzle mounting device for 3D printer, especially to a printing nozzle mounting walking mechanism for large 3D printer. BACKGROUND

[0002] The whole process of 3D printing is to melt plastic in the nozzle, and then form a thin layer by depositing plastic fibers. Large high-speed 3D printers are printing devices used for printing large-size 3D products. In the specific use process, the movement stability of the printing nozzle is required to be higher. The existing printing nozzle mounting walking mechanism mainly uses a synchronous belt to drive the nozzle for printing. In this structure, the large printing nozzle is assembled, and in the specific use process, the printing nozzle moves unstably, which affects the printing quality of large-size 3D products and the printing use of large 3D printers. SUMMARY

[0003] The utility model provides a printing nozzle mounting walking mechanism for large 3D printer, which has a scientific overall structure design, the nozzle mounting rack position on which the printing nozzle can be mounted, and can stably install, support and drive the walking of the printing nozzle, effectively ensures the movement stability of the printing nozzle, and meets the printing needs of large 3D printers.

[0004] In order to achieve the above design purpose, the utility model adopts the following technical scheme:

[0005] A printing nozzle mounting walking mechanism for large 3D printer, comprising a bearing support part, a fixed rack, a first guide rail, a second guide rail, a bearing side plate and a nozzle driving mounting part, the two sides of the bearing support part are installed on the outer side bracket, the fixed rack is installed on the upper part of the bearing support part, the fixed rack is connected with the bearing support part through bolts, the first guide rail and the second guide rail are arranged on the lower side of the fixed rack, the first guide rail and the second guide rail are tightly connected with the bearing support part; the nozzle driving mounting part is installed on the fixed rack, the first guide rail and the second guide rail, the nozzle driving mounting part is in tooth engagement with the fixed rack, and the nozzle driving mounting part is in sliding contact with the first guide rail and the second guide rail, the bearing side plate is installed on the side of the bearing support part and is fixedly connected with the bearing support part.

[0006] Further, the fixed rack, the first guide rail and the second guide rail are arranged in parallel on the bearing support part.

[0007] The load-bearing support includes a left mounting plate, a right mounting plate, and a support frame. The left mounting plate is installed at one end of the support frame and is fixedly connected to the support frame. The right mounting plate is installed at the other end of the support frame and is fixedly connected to the support frame. The left and right mounting plates are both installed on the external bracket by bolts.

[0008] Furthermore, a limit block is fixedly installed on the support frame, and the limit block is located at the ends of the first guide rail and the second guide rail.

[0009] Furthermore, the printhead drive mounting part includes a drive mechanism, a mechanism mounting frame, a first slider, a second slider, and a printhead mounting seat. The first slider is slidably engaged on a first guide rail, and the second slider is slidably engaged on a second guide rail. The inner side of the mechanism mounting frame is bolted to the first slider and the second slider. A drive mechanism is mounted on the upper part of the mechanism mounting frame, and the printhead mounting seat is mounted on the side of the mechanism mounting frame for mounting and supporting the printhead.

[0010] The drive mechanism includes a drive motor, a motor mounting base, a motor shaft, and a rotating gear. The drive motor is mounted on the mechanism mounting frame via the motor mounting base. A motor shaft that drives the rotating gear to rotate in the positive direction is mounted on the drive motor. The rotating gear is assembled at the outer end of the motor shaft and meshes with a fixed rack.

[0011] The beneficial effects of this utility model are as follows: The overall structure of this utility model is scientifically designed. In specific operation and use, the print head can be installed on the print head mounting base, and the bearing support part can be installed on the printer's external frame through the left and right mounting plates. A double guide rail structure is installed on the support frame in the bearing support part to provide stable support for the print head drive mounting part. At the same time, a fixed rack is arranged on the support frame, and a drive motor drives a rotating gear to perform gear meshing transmission on the fixed rack to drive the overall movement of the print head drive mounting part. This can effectively prevent the print head drive mounting part from shaking during movement, ensuring the stability of the print head drive mounting part's movement, realizing stable installation and support for the print head of a large 3D printer, thereby ensuring the printing quality and accuracy of the large print head and avoiding printing deviations. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the axonal structure of the printhead mounting and walking mechanism of this utility model;

[0013] Figure 2 This is a schematic diagram of the installation structure of the load-bearing support part in this utility model;

[0014] Figure 3 This is a schematic diagram of the nozzle drive mounting part in this utility model;

[0015] Figure 4 This is a schematic diagram of the drive mechanism in this utility model;

[0016] The numbers in the diagram are as follows: 1-Bearing support, 2-Fixed rack, 3-First guide rail, 4-Second guide rail, 5-Bearing side plate, 6-Nozzle drive mounting part, 7-Limiting block; 11-Left mounting plate, 12-Right mounting plate, 13-Support frame; 61-Drive mechanism, 62-Mechanism mounting frame, 63-First slider, 64-Second slider, 65-Nozzle mounting seat; 611-Drive motor, 612-Motor docking seat, 613-Motor shaft, 614-Rotating gear. Detailed Implementation

[0017] Specific Embodiment 1: The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. It should be noted that: In this utility model, unless otherwise specified, all implementation methods and preferred implementation methods mentioned herein can be combined with each other to form new technical solutions. In this utility model, unless otherwise specified, all technical features and preferred features mentioned herein can be combined with each other to form new technical solutions.

[0018] As per the specification attached to this utility model Figure 1As shown, existing printhead mounting and walking mechanisms mostly use synchronous belts to drive the printhead for printing. In this structure, mounting heavy, large printheads can easily cause vibration and unstable movement, thus affecting the printing performance of large 3D printers. This utility model designs and provides a printhead mounting and walking mechanism for large 3D printers, mainly comprising a support unit 1, a fixed rack 2, a first guide rail 3, a second guide rail 4, a support side plate 5, and a printhead drive mounting unit 6. The support unit 1 is mainly used to support the fixed rack 2, the first guide rail 3, and the second guide rail 4. During installation, the two sides of the support unit 1 are mounted on the outer support. A fixed rack 2, meshing with a rotating gear 614, is mounted on the upper part of the support unit 1. The fixed rack 2 is connected to the support unit 614 by bolts. The support part 1 is installed and connected. A first guide rail 3 and a second guide rail 4 are provided on the lower side of the fixed rack 2 to support and guide the printhead drive mounting part 6. The first guide rail 3 and the second guide rail 4 are fastened to the bearing support part 1. The printhead drive mounting part 6 is installed on the fixed rack 2, the first guide rail 3 and the second guide rail 4. The printhead drive mounting part 6 is used to install, support and drive the printhead. During installation, the printhead drive mounting part 6 is in meshing contact with the fixed rack 2, and the printhead drive mounting part is in sliding contact with the first guide rail 3 and the second guide rail 4. The bearing side plate 5 is installed on the side of the bearing support part 1 and is fixedly connected to the bearing support part 1. It should be noted that in order to ensure the stability of the displacement of the printhead drive mounting part 6, the fixed rack 2, the first guide rail 3 and the second guide rail 4 are arranged in parallel on the bearing support part 1.

[0019] As per the specification attached to this utility model Figure 2 As shown, the load-bearing support part 1 for mounting and supporting the fixed rack 2, the first guide rail 3 and the second guide rail 4 includes a left mounting plate 11, a right mounting plate 12 and a support frame 13. The left mounting plate 11 and the right mounting plate 12 work together to mount and support the support frame 13. During installation, the left mounting plate 11 is installed at one end of the support frame 13 and is fixedly connected to the support frame 13; the right mounting plate 12 is installed at the other end of the support frame 13 and is fixedly connected to the support frame 13. In addition, the left mounting plate 11 and the right mounting plate 12 are both mounted on the external bracket by bolts.

[0020] As per the specification attached to this utility model Figure 1 As shown, in order to prevent the nozzle drive mounting part 6 from disengaging from the first guide rail 3 and the second guide rail 4 during displacement, a limit block 7 is fixedly installed on the support frame 13. The limit block 7 is located at the ends of the first guide rail 3 and the second guide rail 4 to limit the stroke of the nozzle drive mounting part 6.

[0021] As per the specification attached to this utility modelFigure 3 As shown, the printhead drive mounting part 6, used for mounting and supporting the printhead and adjusting its displacement, includes a drive mechanism 61, a mechanism mounting frame 62, a first slider 63, a second slider 64, and a printhead mounting seat 65. The drive mechanism 61 is used to adjust the displacement of the mechanism mounting frame 62. During installation, the first slider 63 is slidably engaged on the first guide rail 3, and the second slider 64 is slidably engaged on the second guide rail 4. The inner side of the mechanism mounting frame 62, which is used to mount the drive mechanism 61, is bolted to the first slider 63 and the second slider 64. The drive mechanism 61 is mounted on the upper part of the mechanism mounting frame 62, and the printhead mounting seat 65, which supports and mounts the printhead, is mounted on the side of the mechanism mounting frame 62 for mounting and supporting the printhead.

[0022] As per the specification attached to this utility model Figure 4 As shown, the drive mechanism 61 for moving and adjusting the print head, the mechanism mounting bracket 62, and the print head mounting base 65 includes a drive motor 611, a motor docking seat 612, a motor shaft 613, and a rotating gear 614. The drive motor 611 drives the rotating gear 614 to rotate in both directions. During installation, the drive motor 611 is mounted on the mechanism mounting bracket 62 via the motor docking seat 612. The motor shaft 613, which drives the rotating gear 614 to rotate in the forward direction, is mounted on the drive motor 611. The rotating gear 614 is assembled at the outer end of the motor shaft 613 and meshes with the fixed rack 2.

[0023] The installation and use process of the printhead mounting and walking mechanism for the large 3D printer of this utility model is as follows:

[0024] First, the bearing support part 1 of this utility model can be installed. Specifically, the left mounting plate 11 can be fixedly installed at one end of the support frame 13; the right mounting plate 12 can be fixedly installed at the other end of the support frame 13. Mounting through holes for mounting bolts are provided on the left mounting plate 11 and the right mounting plate 12. The left mounting plate 11 and the right mounting plate 12 are mounted on the external bracket by bolts. Then, the fixing rack 2, the first guide rail 3, and the second guide rail 4 are installed on the support frame 13 in the bearing support part 1. Simultaneously, it is ensured that the fixing rack 2, the first guide rail 3, and the second guide rail 4 are in a balanced position. Limiting blocks 7 for limiting the nozzle drive mounting part 6 are installed at the ends of the first guide rail 3 and the second guide rail 4. Bearing side plates 5 are installed on the sides of the support frame 13. To increase the structural strength of the support frame 13 itself, after the above installation is completed, the nozzle drive mounting part 6 is installed. First, the drive mechanism 61 in the nozzle drive mounting part 6 is installed. Specifically, the drive motor 611 can be installed on the mechanism mounting frame 62 through the motor docking seat 612. The motor shaft 613 is installed on the drive motor 611. The rotating gear 614 is assembled at the outer end of the motor shaft 613. Then, the first slider 63 is engaged on the first guide rail 3, and the second slider 64 is engaged on the second guide rail 4. The first slider 63 and the second slider 64 are installed on the inner side of the mechanism mounting frame 62. At the same time, it is ensured that the rotating gear 614 meshes with the fixed rack 2. Finally, the nozzle mounting seat 65 is fixedly installed on the side of the mechanism mounting frame 62. Thus, the installation process of the structure of this utility model is completed.

[0025] In practical use, the drive motor 611 in the printhead drive mounting section 6 can be started. The drive motor 611 drives the rotating gear 614 to rotate clockwise or counterclockwise through the motor shaft 613. The rotating gear 614 meshes with the fixed rack 2. At this time, under the action of the meshing force, the drive mechanism 61 can drive the mechanism mounting frame 62, the printhead mounting seat 65, and the printing printhead mounted on the printhead mounting seat 65 to make displacement adjustments on the first guide rail 3 and the second guide rail 4 through the first slider 63 and the second slider 64. The support frame 13 and the bearing side plate 5 can form a stable support. The frame 13 structure, with the drive motor 611 driving the rotating gear 614 to mesh on the fixed rack 2, ensures precise transmission. Simultaneously, the dual-guide rail slider design ensures the linearity of the nozzle drive mounting part 6's displacement guidance. This synergistic design achieves stable movement of the large printing nozzle during operation, effectively preventing vibration of the nozzle drive mounting part 6 during movement and ensuring its stable movement. This provides stable support for the printing nozzle of the large 3D printer, thereby guaranteeing the printing quality of the large 3D printer. The above describes the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A printhead mounting and walking mechanism for a large 3D printer, characterized in that, The assembly includes a support unit (1), a fixed rack (2), a first guide rail (3), a second guide rail (4), a support side plate (5), and a nozzle drive mounting unit (6). A fixed rack (2) is installed on the upper part of the support unit (1), and the fixed rack (2) is connected to the support unit (1) by bolts. A first guide rail (3) and a second guide rail (4) are provided on the lower side of the fixed rack (2), and the first guide rail (3) and the second guide rail (4) are fastened to the support unit (1). A nozzle drive mounting unit is installed on the fixed rack (2), the first guide rail (3), and the second guide rail (4). The nozzle drive mounting unit (6) is in meshing contact with the fixed rack (2), and the nozzle drive mounting unit (6) is in sliding contact with the first guide rail (3) and the second guide rail (4). The support side plate (5) is installed on the side of the support unit (1) and is fixedly connected to the support unit (1).

2. The printhead mounting and walking mechanism for a large 3D printer according to claim 1, characterized in that, The fixed rack (2), the first guide rail (3) and the second guide rail (4) are arranged in parallel on the bearing support part (1).

3. The printhead mounting and walking mechanism for a large 3D printer according to claim 2, characterized in that, The load-bearing support (1) includes a left mounting plate (11), a right mounting plate (12), and a support frame (13). The left mounting plate (11) is installed at one end of the support frame (13) and is fixedly connected to the support frame (13). The right mounting plate (12) is installed at the other end of the support frame (13) and is fixedly connected to the support frame (13). The left mounting plate (11) and the right mounting plate (12) are both installed on the external bracket by bolts.

4. The printhead mounting and walking mechanism for a large 3D printer according to claim 3, characterized in that, A limiting block (7) is fixedly installed on the support frame (13), and the limiting block (7) is located at the ends of the first guide rail (3) and the second guide rail (4).

5. The printhead mounting and walking mechanism for a large 3D printer according to claim 1, characterized in that, The nozzle drive mounting part (6) includes a drive mechanism (61), a mechanism mounting frame (62), a first slider (63), a second slider (64), and a nozzle mounting seat (65). The first slider (63) is slidably engaged on the first guide rail (3), and the second slider (64) is slidably engaged on the second guide rail (4). The inner side of the mechanism mounting frame (62) is bolted to the first slider (63) and the second slider (64). The drive mechanism (61) is mounted on the upper part of the mechanism mounting frame (62), and the nozzle mounting seat (65) is mounted on the side of the mechanism mounting frame (62).

6. The printhead mounting and walking mechanism for a large 3D printer according to claim 5, characterized in that, The drive mechanism (61) includes a drive motor (611), a motor docking seat (612), a motor shaft (613), and a rotating gear (614). The drive motor (611) is mounted on the mechanism mounting frame (62) through the motor docking seat (612). The motor shaft (613) that drives the rotating gear (614) to rotate in the positive direction is mounted on the drive motor (611). The rotating gear (614) is assembled at the outer end of the motor shaft (613) and meshes with the fixed rack (2).

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