3D printing nozzle with adjustable nozzle size

Abstract

The utility model discloses a 3D printing nozzle with adjustable nozzle size, which comprises a connecting pipe installed on a 3D printer, the bottom end of the connecting pipe is fixedly connected with a nozzle, the connecting pipe is internally and fixedly connected with a fixing ring, the circumferential inner wall of the connecting pipe is symmetrically provided with two sliding chutes, the two sliding chutes are internally and slidably connected with a sliding plate, and the sliding plate is fixedly connected with the nozzle. A protruding block is fixedly connected to the top of the sliding plate, a connecting assembly used for pulling the sliding plate to move upwards is arranged on the circumferential outer wall of the connecting pipe, and the connecting assembly comprises a plurality of fixing bases. By reducing the hollow area of the fixing ring, the flow of materials used for 3D printing can be reduced, flow adjustment of the 3D printing spray head is achieved, the situation that the flow of the spray head is changed due to movement of the sliding plate can be prevented, the stability of flow adjustment of the 3D printing spray head is improved, flow recovery of the 3D printing spray head can be facilitated, and the service life of the 3D printing spray head is prolonged. And the convenience of adjusting the 3D printing spray head is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing nozzles, in particular to a 3D printing nozzle with adjustable nozzle size. Background Art

[0002] A 3D printer is first built using computer modeling software, the model is sliced ​​using the software, and then the model is copied to the 3D printer via an SD card or USB flash drive for printing, turning what is in the computer into reality.

[0003] As disclosed in the patent number CN212242165U, a 3D printer nozzle with adjustable discharge volume and not prone to clogging, the prior art has the problem that the flow rate of traditional 3D printer nozzles cannot be adjusted. In order to solve this problem, the present application proposes a 3D printing nozzle with a new structure and adjustable nozzle size. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a 3D printing nozzle with adjustable nozzle size.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A 3D printing nozzle with adjustable nozzle size comprises a connecting tube installed on a 3D printer, wherein the bottom end of the connecting tube is fixedly connected to a nozzle, a fixing ring is fixedly connected inside the connecting tube, two sliding grooves are symmetrically provided on the circumferential inner wall of the connecting tube, a slide plate is slidably connected in the two sliding grooves, a protrusion is fixedly connected to the top of the slide plate, and a connecting component for pulling the slide plate to move upward is provided on the circumferential outer wall of the connecting tube.

[0007] As a further scheme of the utility model, the connecting component includes multiple fixed seats, and the multiple fixed seats are fixedly connected to the circumferential outer wall of the connecting tube. A wire-taking roller is rotatably connected between two adjacent fixed seats, and one end of the wire-taking roller is fixedly connected to a rotating shaft, and one end of the rotating shaft passes through the fixed seat. A pull rope is wrapped around the outer side of the wire-taking roller, and the circumferential outer wall of the connecting tube is symmetrically provided with two L-shaped circular grooves connected to the slide groove, and a guide tube is fixedly connected in the L-shaped circular groove. The pull rope passes through the guide tube and extends out of the L-shaped circular groove to be fixed to the slide plate. The circumferential outer wall of the connecting tube is provided with a plug-in assembly for fixing the wire-taking roller, and the two slide grooves are provided with elastic components for restoring the slide plate after moving upward.

[0008] As a further solution of the utility model, the plug-in assembly includes two fixed plates, both of which are fixedly connected to the circumferential outer wall of the connecting tube, and the tops of the two fixed plates are provided with sliding openings, in which an L-shaped rod is slidably connected, and the circumferential outer wall of the rotating shaft is fixedly connected to a turntable, and the circumferential outer wall of the turntable is provided with multiple sockets, and the L-shaped rod is plugged into one of the sockets.

[0009] As a further solution of the utility model, the elastic component includes two second springs, the two second springs are respectively fixedly connected to the top of the two slide grooves, the two second springs are both fixed to the slide plate, and the pull rope passes through the second springs.

[0010] As a further solution of the utility model, the upper surfaces of the two fixing plates are fixedly connected with first springs, and the first springs are fixed to the L-shaped rods.

[0011] As a further solution of the utility model, a pull ring for pulling the L-shaped rod to move upward is fixedly connected to the top of the L-shaped rod.

[0012] As a further solution of the utility model, one end of the rotating shaft is fixedly connected with a knob for rotating the rotating shaft.

[0013] The beneficial effects of the utility model are:

[0014] 1. By using the protrusion and the fixing ring together, the slide plate is pulled upward, and the slide plate drives the protrusion to move upward, so that the protrusion passes through the fixing ring, thereby reducing the hollow area of ​​the fixing ring, which can reduce the flow rate of the material used in 3D printing and realize the flow rate regulation of the 3D printing nozzle.

[0015] 2. By setting the fixing component, the rotating shaft is fixed using the fixing component, so that the position of the slide plate can be fixed to prevent the slide plate from moving and causing the flow rate of the nozzle to change, thereby improving the stability of the flow rate regulation of the 3D printing nozzle.

[0016] 3. Through the setting of the second spring, when the flow rate of the 3D printing nozzle needs to be restored to its original state, it is only necessary to no longer fix the rotating shaft. At this time, under the action of the second spring, the slide plate will automatically reset, thereby facilitating the flow rate recovery of the 3D printing nozzle and improving the convenience of adjusting the 3D printing nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a 3D printing nozzle with adjustable nozzle size proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the enlarged structure of part A of a 3D printing nozzle with adjustable nozzle size proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of a partially enlarged structure of a 3D printing nozzle with adjustable nozzle size proposed by the utility model.

[0020] In the figure: 1. nozzle; 2. connecting pipe; 3. turntable; 4. socket; 5. take-up roller; 6. fixing seat; 7. pull ring; 8. L-shaped rod; 9. first spring; 10. fixing plate; 11. second spring; 12. pull rope; 13. guide tube; 14. fixing ring; 15. rotating shaft; 16. knob; 17. bump; 18. slide plate. DETAILED DESCRIPTION

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, so that the embodiments of the application described here, based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0022] Reference Figure 1-Figure 3 A 3D printing nozzle with adjustable nozzle size includes a connecting tube 2 installed on a 3D printer, a nozzle 1 is fixed to the bottom end of the connecting tube 2 by bolts, a fixing ring 14 is welded inside the connecting tube 2, two slide grooves are symmetrically opened on the circumferential inner wall of the connecting tube 2, a slide plate 18 is slidably connected in the two slide grooves, a protrusion 17 is fixed to the top of the slide plate 18 by bolts, and the protrusion 17 can pass through the fixing ring 14, and a connecting component for pulling the slide plate 18 to move upward is provided on the circumferential outer wall of the connecting tube 2. When the slide plate 18 is pulled upward by the connecting component, the slide plate 18 will drive the protrusion 17 to move upward, so that the protrusion 17 passes through the fixing ring 14, thereby reducing the hollow area of ​​the fixing ring 14, which can reduce the flow rate of the material used in 3D printing and realize the flow rate regulation of the 3D printing nozzle.

[0023] In the utility model, the connection assembly includes a plurality of fixed seats 6, and the plurality of fixed seats 6 are welded to the circumferential outer wall of the connecting tube 2. A take-up roller 5 is rotatably connected between two adjacent fixed seats 6. A rotating shaft 15 is welded to one end of the take-up roller 5. One end of the rotating shaft 15 passes through the fixed seat 6. A pull rope 12 is wound around the outer side of the take-up roller 5. Two L-shaped circular grooves connected to the slide groove are symmetrically provided on the circumferential outer wall of the connecting tube 2. A guide tube 13 is fixed in the L-shaped circular groove by bolts. The pull rope 12 passes through the guide tube 13 and extends out of the L-shaped circular groove to be fixed to the slide plate 18. The circumferential outer wall of the connecting tube 2 is provided with an insertion assembly for fixing the take-up roller 5. , elastic components are provided in the two slide grooves to reset the slide plate 18 after it moves upward, the plug-in assembly includes two fixed plates 10, the two fixed plates 10 are welded to the circumferential outer wall of the connecting pipe 2, the tops of the two fixed plates 10 are provided with sliding openings, and the sliding openings are slidably connected with L-shaped rods 8, the circumferential outer wall of the rotating shaft 15 is fixed with a rotating disk 3 by bolts, the circumferential outer wall of the rotating disk 3 is provided with a plurality of sockets 4, and the L-shaped rod 8 is plugged into one of the sockets 4, the elastic component includes two second springs 11, the two second springs 11 are respectively welded to the tops of the two slide grooves, the two second springs 11 are fixed to the slide plate 18, and the pull rope 12 The second spring 11 is passed through, and the upper surfaces of the two fixing plates 10 are welded with the first spring 9, and the first spring 9 is fixed to the L-shaped rod 8. When the L-shaped rod 8 is pulled to move upward, the L-shaped rod 8 will stretch the first spring 9 and disengage from the socket 4 on the turntable 3. At this time, the rotating shaft 15 can be rotated, and the rotating shaft 15 will drive the take-up roller 5 to rotate, and the take-up roller 5 will reel in the pull rope 12. In the process of reeling in the pull rope 12, under the action of the guide tube 13, the pull rope 12 will pull the slide plate 18 to move upward along the slide groove, and the slide plate 18 will drive the protrusion 17 to move upward and squeeze the second spring 11. When the slide plate 18 moves to the appropriate After the L-shaped rod 8 is in the position, the L-shaped rod 8 is released. The L-shaped rod 8 will be reset under the action of the first spring 9 and inserted into the corresponding socket 4 to fix the rotating shaft 15, thereby fixing the take-up roller 5, so that the slide plate 18 does not move, and the movement of the slide plate 18 is prevented to cause the flow rate of the nozzle to change, thereby improving the stability of the flow rate regulation of the 3D printing nozzle. A pull ring 7 for pulling the L-shaped rod 8 to move upward is welded on the top of the L-shaped rod 8, and the L-shaped rod 8 can be pulled upward by the pull ring 7. A knob 16 for rotating the rotating shaft 15 is fixed to one end of the rotating shaft 15 by bolts, and the rotating shaft 15 can be rotated by the knob 16.

[0024] Working principle: When it is needed, the L-shaped rod 8 is pulled upward, the L-shaped rod 8 will stretch the first spring 9 and disengage from the socket 4 on the turntable 3, at this time, the rotating shaft 15 can be rotated by the knob 16, the rotating shaft 15 will drive the take-up roller 5 to rotate, and the take-up roller 5 will reel the pull rope 12, in the process of reeling the pull rope 12, under the action of the guide tube 13, the pull rope 12 will pull the slide plate 18 to move upward along the slide groove, the slide plate 18 will drive the protrusion 17 to move upward and squeeze the second spring 11, so that the protrusion 17 passes through the fixed The fixed ring 14 can reduce the hollow area of ​​the fixed ring 14, thereby reducing the flow rate of the material used in 3D printing and realizing the flow rate regulation of the 3D printing nozzle. When the slide plate 18 moves to the appropriate position, the L-shaped rod 8 is released, and the L-shaped rod 8 will be reset under the action of the first spring 9 and inserted into the corresponding socket 4 to fix the rotating shaft 15, thereby fixing the take-up roller 5, so that the slide plate 18 does not move, preventing the slide plate 18 from moving and causing the flow rate of the nozzle to change, thereby improving the stability of the flow rate regulation of the 3D printing nozzle.

[0025] The present invention has been described through the above-mentioned embodiments. Those skilled in the art will appreciate that the present invention is not limited to the above-mentioned embodiments, and more modifications may be made according to the teachings of the present invention. These modifications are all within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A 3D printing nozzle with adjustable nozzle size, comprising a connecting tube (2) mounted on a 3D printer, characterized in that: The bottom end of the connecting tube (2) is fixedly connected to a nozzle (1), a fixing ring (14) is fixedly connected inside the connecting tube (2), two sliding grooves are symmetrically provided on the circumferential inner wall of the connecting tube (2), a slide plate (18) is slidably connected inside the two sliding grooves, a protrusion (17) is fixedly connected to the top of the slide plate (18), and a connecting component for pulling the slide plate (18) to move upward is provided on the circumferential outer wall of the connecting tube (2).

2. A 3D printing nozzle with adjustable nozzle size according to claim 1, characterized in that: The connecting assembly comprises a plurality of fixing seats (6), the plurality of fixing seats (6) are fixedly connected to the circumferential outer wall of the connecting tube (2), a wire take-up roller (5) is rotatably connected between two adjacent fixing seats (6), one end of the wire take-up roller (5) is fixedly connected to a rotating shaft (15), one end of the rotating shaft (15) passes through the fixing seat (6), a pull rope (12) is wound around the outer side of the wire take-up roller (5), the circumferential outer wall of the connecting tube (2) is symmetrically provided with two L-shaped circular grooves connected to the slide groove, a guide tube (13) is fixedly connected in the L-shaped circular groove, the pull rope (12) passes through the guide tube (13) and extends out of the L-shaped circular groove to be fixed to the slide plate (18), the circumferential outer wall of the connecting tube (2) is provided with an inserting assembly for fixing the wire take-up roller (5), and elastic components are provided in the two slide grooves for returning the slide plate (18) to its original position after moving upward.

3. A 3D printing nozzle with adjustable nozzle size according to claim 2, characterized in that: The plug-in assembly comprises two fixing plates (10), the two fixing plates (10) are fixedly connected to the circumferential outer wall of the connecting pipe (2), the tops of the two fixing plates (10) are provided with sliding openings, an L-shaped rod (8) is slidably connected in the sliding openings, the circumferential outer wall of the rotating shaft (15) is fixedly connected to a rotating disk (3), the circumferential outer wall of the rotating disk (3) is provided with a plurality of sockets (4), and the L-shaped rod (8) is plugged into one of the sockets (4).

4. A 3D printing nozzle with adjustable nozzle size according to claim 2, characterized in that: The elastic component comprises two second springs (11), the two second springs (11) are respectively fixedly connected to the tops of the two slide grooves, the two second springs (11) are both fixed to the slide plate (18), and the pull rope (12) passes through the second springs (11).

5. A 3D printing nozzle with adjustable nozzle size according to claim 3, characterized in that: The upper surfaces of the two fixing plates (10) are both fixedly connected with a first spring (9), and the first spring (9) is fixed to the L-shaped rod (8).

6. A 3D printing nozzle with adjustable nozzle size according to claim 5, characterized in that: A pull ring (7) for pulling the L-shaped rod (8) upward is fixedly connected to the top of the L-shaped rod (8).

7. A 3D printing nozzle with adjustable nozzle size according to claim 2, characterized in that: One end of the rotating shaft (15) is fixedly connected to a knob (16) for rotating the rotating shaft (15).

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