A 3D printer nozzle quick connection mechanism

Abstract

The utility model provides a kind of 3D printer nozzle quick connecting mechanism, it is related to 3D printer nozzle technical field, including extrusion head body and nozzle body.In the utility model, the positioning strip of nozzle body outer wall is aligned with the positioning groove of extrusion head body mounting hole inner wall, by sliding, nozzle body is inserted into mounting hole, realize quick positioning, at this time, the connecting block of annular plate on nozzle body is accurately aligned with the limiting hole of extrusion head body bottom, then, rotate handle, make it drive screw rod rotation, screw rod will drive sliding block connected with it by thread in the process of rotation in side frame and slide upwards, when sliding block moves up, by connecting column drive bottom bar, connecting shaft, top plate and ring and limiting plug rod synchronous rising, when limiting plug rod inserts into the limiting hole of connecting block and extrusion head body, the fixing of nozzle body and extrusion head body can be completed, whole installation process does not need tool, and operation is simple, and nozzle body installation time is greatly shortened.

Description

Technical Field

[0001] This utility model relates to the field of 3D printer nozzle technology, and in particular to a quick connection mechanism for 3D printer nozzles. Background Technology

[0002] With the increasing popularity of 3D printing technology, the performance of each component of a 3D printer plays a crucial role in print quality and efficiency. Among them, the nozzle, as a key component for extruding printing material, has a particularly critical connection mechanism with the extrusion head.

[0003] Currently, the traditional method of connecting the nozzle and extrusion head of a 3D printer is to use a threaded connection. Although the threaded connection is relatively stable, it requires the use of tools to tighten it when changing the nozzle, which is inefficient. Furthermore, after repeated disassembly and assembly, the threads are prone to wear, leading to loosening of the connection and decreased sealing, which in turn affects the extrusion accuracy of the printing material and the printing quality. Therefore, an improvement is needed. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to propose a quick-connect mechanism for 3D printer nozzles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick-connect mechanism for a 3D printer nozzle, comprising an extruder head body and a nozzle body. An annular plate is fixedly installed on the outer wall of the nozzle body, and connecting blocks are symmetrically fixedly installed on the outer wall of the annular plate. Limiting holes are formed at the bottom of the connecting blocks and the extruder head body. An installation hole is formed at the bottom of the extruder head body. A side frame is fixedly installed on one side of the extruder head body. A lead screw is rotatably connected inside the side frame. A slider is threadedly connected to the outer wall of the lead screw. A connecting post is fixedly installed at the bottom of the slider. A bottom rod is fixedly installed at the bottom end of the connecting post. A connecting shaft is fixedly installed at the top of the bottom rod. A top plate is fixedly installed at the top of the connecting shaft. A ring is fixedly installed on one side of the top plate. Limiting rods are symmetrically fixedly installed at the top of the ring. A rotating handle is fixedly installed at the top of the lead screw.

[0006] Preferably, the nozzle body is slidably connected to the mounting hole.

[0007] Preferably, the slider is slidably connected to the side frame, and the connecting post is slidably connected to the side frame.

[0008] Preferably, the limiting rod and the limiting hole are slidably connected.

[0009] Preferably, positioning strips are symmetrically fixedly installed on the outer wall of the nozzle body, and positioning grooves are symmetrically opened on the inner wall of the mounting hole, with the positioning strips and positioning grooves being slidably connected.

[0010] Preferably, an annular groove is provided at the bottom of the extrusion head body, an elastic sealing ring is slidably connected inside the annular groove, and a pressure ring is fixedly installed on the top of the annular plate.

[0011] Preferably, the pressure ring and the annular groove are slidably connected.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the positioning strip on the outer wall of the nozzle body is aligned with the positioning groove on the inner wall of the extrusion head body mounting hole. The nozzle body is then inserted into the mounting hole by sliding, achieving rapid positioning. At this time, the connecting block of the annular plate on the nozzle body is precisely aligned with the limiting hole at the bottom of the extrusion head body. Then, the handle is rotated to drive the lead screw to rotate. During the rotation of the lead screw, the slider connected to it by threads will slide upward in the side frame. When the slider moves upward, the bottom rod, connecting shaft, top plate, annulus and limiting rod will rise synchronously through the connecting column. When the limiting rod is inserted into the limiting hole of the connecting block and the extrusion head body, the nozzle body and the extrusion head body can be fixed. The entire installation process requires no tools and is easy to operate, which greatly shortens the installation time of the nozzle body and solves the problem of low disassembly and assembly efficiency in the prior art.

[0014] 2. In this utility model, by embedding the pressure ring into the annular groove to compress the elastic sealing ring, a tight sealing structure is formed, which can effectively resist complex printing environments such as high temperature and high pressure, prevent printing material leakage, ensure the extrusion accuracy of the printing material, and further guarantee the printing quality. Attached Figure Description

[0015] Figure 1 This utility model provides an overall structural schematic diagram of a quick-connect mechanism for a 3D printer nozzle;

[0016] Figure 2 A bottom view of the structure of a quick-connect nozzle mechanism for a 3D printer is provided for this utility model.

[0017] Figure 3 This utility model provides a partially exploded view of the structure of a 3D printer nozzle quick connection mechanism;

[0018] Figure 4 This utility model provides a partial structural schematic diagram of a quick-connect mechanism for a 3D printer nozzle;

[0019] Figure 5This utility model presents a partial structural cross-sectional view of a quick-connect mechanism for a 3D printer nozzle.

[0020] Legend: 1. Extruder head body; 2. Nozzle body; 3. Annular plate; 4. Connecting block; 5. Limiting hole; 6. Mounting hole; 7. Side frame; 8. Lead screw; 9. Slider; 10. Connecting column; 11. Bottom rod; 12. Connecting shaft; 13. Top plate; 14. Circular ring; 15. Limiting rod; 16. Rotary handle; 17. Positioning groove; 18. Positioning strip; 19. Annular groove; 20. Elastic sealing ring; 21. Pressure ring. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figures 1-5 As shown, this utility model provides a technical solution: a quick-connect mechanism for a 3D printer nozzle, including an extruder body 1 and a nozzle body 2. An annular plate 3 is fixedly installed on the outer wall of the nozzle body 2. Connecting blocks 4 are symmetrically fixedly installed on the outer wall of the annular plate 3. Limiting holes 5 are formed between the connecting blocks 4 and the bottom of the extruder body 1. An installation hole 6 is formed at the bottom of the extruder body 1. A side frame 7 is fixedly installed on one side of the extruder body 1. A lead screw 8 is rotatably connected inside the side frame 7. A slider 9 is threadedly connected to the outer wall of the lead screw 8. A connecting post 10 is fixedly installed at the bottom of the slider 9. A bottom rod 11 is fixedly installed at the bottom end of the connecting post 10. A connecting shaft 12 is fixedly installed on the top of the nozzle body 11. A top plate 13 is fixedly installed on the top of the connecting shaft 12. A ring 14 is fixedly installed on one side of the top plate 13. A limiting rod 15 is symmetrically fixedly installed on the top of the ring 14. A throttle 16 is fixedly installed on the top of the lead screw 8. The nozzle body 2 is slidably connected to the mounting hole 6. The slider 9 is slidably connected to the side frame 7. The connecting column 10 is slidably connected to the side frame 7. The limiting rod 15 is slidably connected to the limiting hole 5. A positioning strip 18 is symmetrically fixedly installed on the outer wall of the nozzle body 2. A positioning groove 17 is symmetrically opened on the inner wall of the mounting hole 6. The positioning strip 18 is slidably connected to the positioning groove 17.

[0024] In this embodiment, the positioning strip 18 on the outer wall of the nozzle body 2 is aligned with the positioning groove 17 on the inner wall of the mounting hole 6 of the extruder head body 1. The nozzle body 2 is inserted into the mounting hole 6 by sliding, achieving rapid positioning. At this time, the connecting block 4 of the annular plate 3 on the nozzle body 2 is precisely aligned with the limiting hole 5 at the bottom of the extruder head body 1. Then, the handle 16 is rotated to drive the lead screw 8 to rotate. During the rotation of the lead screw 8, the slider 9 connected to it by threads will slide upward in the side frame 7. When the slider 9 moves upward, the bottom rod 11, connecting shaft 12, top plate 13, ring 14 and limiting rod 15 will rise synchronously through the connecting column 10. When the limiting rod 15 is inserted into the limiting hole 5 of the connecting block 4 and the extruder head body 1, the nozzle body 2 and the extruder head body 1 can be fixed. The entire installation process does not require tools and is easy to operate, which greatly shortens the installation time of the nozzle body 2 and solves the problem of low disassembly and assembly efficiency in the prior art.

[0025] Example 2: As Figures 3-4 As shown, an annular groove 19 is provided at the bottom of the extrusion head body 1, and an elastic sealing ring 20 is slidably connected inside the annular groove 19. A pressure ring 21 is fixedly installed on the top of the annular plate 3, and the pressure ring 21 is slidably connected to the annular groove 19.

[0026] In this embodiment, by embedding the pressure ring 21 into the annular groove 19 to compress the elastic sealing ring 20, a tight sealing structure is formed, which can effectively resist complex printing environments such as high temperature and high pressure, prevent printing material leakage, ensure the extrusion accuracy of printing material, and further guarantee printing quality.

[0027] The working principle of this embodiment is as follows: During installation, firstly, the positioning strip 18 on the outer wall of the nozzle body 2 is aligned with the positioning groove 17 on the inner wall of the mounting hole 6 of the extruder body 1. By sliding, the nozzle body 2 is inserted into the mounting hole 6 to achieve quick positioning. At this time, the connecting block 4 of the annular plate 3 on the nozzle body 2 is precisely aligned with the limiting hole 5 at the bottom of the extruder body 1. Then, the throttle 16 is rotated to drive the lead screw 8 to rotate. During the rotation of the lead screw 8, the slider 9 connected to it will slide upward in the side frame 7. When the slider 9 moves upward, the bottom rod 11, connecting shaft 12, top plate 13, ring 14 and limiting rod 15 will rise synchronously through the connecting column 10. When the limiting rod 15 is inserted into the limiting hole 5 of the connecting block 4 and the extruder body 1, the nozzle body 2 and the extruder body 1 can be fixed. At the same time, the pressure ring 21 at the top of the annular plate 3 is embedded in the annular groove 19 at the bottom of the extruder body 1, squeezing the elastic sealing ring 20 so that it fits tightly against the inner wall of the annular groove 19 to form a sealing structure, effectively preventing the leakage of printing material. During disassembly, the handle 16 is rotated in the opposite direction, the lead screw 8 drives the slider 9 to descend, and the limit rod 15 is pulled out from the limit hole 5. At this time, the nozzle body 2 can be easily pulled out from the mounting hole 6, achieving quick disassembly. The whole process does not require the assistance of tools. The nozzle body 2 can be quickly replaced by simply operating the handle 16.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A quick-connect nozzle mechanism for a 3D printer, comprising an extruder head body (1) and a nozzle body (2), characterized in that: An annular plate (3) is fixedly installed on the outer wall of the nozzle body (2). Connecting blocks (4) are symmetrically fixedly installed on the outer wall of the annular plate (3). Limiting holes (5) are opened between the connecting blocks (4) and the bottom of the extrusion head body (1). An installation hole (6) is opened at the bottom of the extrusion head body (1). A side frame (7) is fixedly installed on one side of the extrusion head body (1). A lead screw (8) is rotatably connected inside the side frame (7). A slider (9) is threadedly connected to the outer wall of the lead screw (8). A connecting column (10) is fixedly installed at the bottom of the slider (9), a bottom rod (11) is fixedly installed at the bottom end of the connecting column (10), a connecting shaft (12) is fixedly installed at the top of the bottom rod (11), a top plate (13) is fixedly installed at the top of the connecting shaft (12), a ring (14) is fixedly installed on one side of the top plate (13), a limit rod (15) is symmetrically fixedly installed at the top of the ring (14), and a throttle (16) is fixedly installed at the top of the lead screw (8).

2. The 3D printer nozzle quick connection mechanism according to claim 1, characterized in that: The nozzle body (2) is slidably connected to the mounting hole (6).

3. The 3D printer nozzle quick-connect mechanism according to claim 1, characterized in that: The slider (9) is slidably connected to the side frame (7), and the connecting column (10) is slidably connected to the side frame (7).

4. The 3D printer nozzle quick connection mechanism according to claim 1, characterized in that: The limiting rod (15) is slidably connected to the limiting hole (5).

5. The 3D printer nozzle quick-connect mechanism according to claim 1, characterized in that: The nozzle body (2) is symmetrically fixedly mounted with positioning strips (18), and the inner wall of the mounting hole (6) is symmetrically provided with positioning grooves (17). The positioning strips (18) and the positioning grooves (17) are slidably connected.

6. The 3D printer nozzle quick-connect mechanism according to claim 1, characterized in that: The bottom of the extrusion head body (1) is provided with an annular groove (19), and an elastic sealing ring (20) is slidably connected inside the annular groove (19). A pressure ring (21) is fixedly installed on the top of the annular plate (3).

7. The 3D printer nozzle quick-connect mechanism according to claim 6, characterized in that: The pressure ring (21) is slidably connected to the annular groove (19).

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