3D printing nozzle
By designing heating blocks and replacement components in a 3D printer, uniform heating of heating blocks and flexible replacement of nozzles are achieved, and the problems of temperature fluctuations caused by small heating block sizes in the prior art and the difficulty of nozzle replacement are solved, thereby improving printing efficiency and quality.
Patent Information
- Application Number
- CN202420783667.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-04-15
AI Technical Summary
The cross-sectional size of the heating block of existing 3D printers is small, resulting in long printing time for super-large products and large temperature fluctuations, resulting in insufficient melting and unstable wire output.
Design a 3D printed nozzle including heating blocks, heating components and switching components. The wires in the melting chamber are uniformly heated by heating rods, which can increase the heat storage capacity of the heating block, reduce temperature differences, and achieve rapid and stable temperature in transverse direction, and through switching components Easy to replace nozzles and improve flexibility.
The temperature difference in cross-sectional directions is almost zero under the conditions of printing quality and high-speed printing, reducing heat fluctuations caused by wire melting, ensuring rapid and stable temperature in the transverse direction of the heating block, and improving the flexibility of the nozzle. .
Smart Images
Figure CN222329057U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of 3D printing equipment, and in particular to a 3D printing nozzle. Background Art
[0002] The cross-section length and width of the current 3D printer heating block are generally 10 mm × 10 mm, and the heating rods are usually placed on one side. It takes a long time to print super-large products (1 m × 1 m × 1 m) at the current printing speed. If the printing speed is increased, the temperature of the same cross-section of the heating block will fluctuate greatly and a large temperature difference will easily occur in different directions of the same cross-section, resulting in insufficient melting and unstable filament output. It is urgent to design a 3D printing nozzle to solve the above problems. Utility Model Content
[0003] The purpose of the utility model is to provide a 3D printing nozzle to solve the above-mentioned deficiencies in the prior art.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] It includes a heating block, a heating component, a replacement component and a nozzle, the heating component is arranged in the heating block, the heating component includes a heating rod, a temperature measuring probe and a fastening screw, the heating block is provided with fastening grooves on the circumference, the heating rod is clamped in the fastening groove, the top of the heating block is provided with a temperature measuring groove, the temperature measuring probe is fixedly installed in the temperature measuring groove, the top of the heating block is provided with a melting cavity, the top of the heating block is provided with a first circular groove, the first circular groove is connected with the fastening groove, the fastening screw is slidably installed in the first circular groove, and the fastening screw is threadedly connected with the fastening groove.
[0006] The heating rod is set to evenly heat the wire in the melting chamber, thereby increasing the heat storage capacity of the heating block while meeting the printing quality and high-speed printing requirements, thereby ensuring that the temperature difference in each direction of the same cross-section is almost zero, thereby reducing the heat fluctuation of the heating component caused by the melting of the wire, thereby achieving rapid lateral stabilization of the temperature of the heating block during printing.
[0007] The exchange assembly comprises a first bevel gear, a second bevel gear, a U-shaped plate, a knob, a spring, a semicircular protrusion, a turntable, an arc buckle, a circular buckle and a sealing gasket, and the first bevel gear is rotatably mounted on the bottom of the heating block.
[0008] The replacement component can be easily replaced by the staff according to the actual needs of the nozzle of different sizes, thereby improving the flexibility of the use of 3D printing nozzle.
[0009] The U-shaped plate is fixedly mounted on the rear side of the heating block, a second circular groove is opened on the rear side of the U-shaped plate, the second bevel gear is rotatably mounted in the second circular groove, and the knob is fixedly mounted on the rear side of the second bevel gear.
[0010] The nozzle can be driven to rotate through the second bevel gear and the first bevel gear by the knob, so that the staff can replace nozzles of different sizes according to the needs.
[0011] A slide groove is provided at the bottom of the heating block, the semicircular protrusion is slidably installed in the slide groove, the spring is fixedly installed between the heating block and the semicircular protrusion, and a semicircular groove is provided at the top of the first bevel gear.
[0012] The semicircular groove can limit the turntable through the semicircular protrusion, thereby increasing the stability of the turntable when it rotates.
[0013] The turntable is fixedly mounted on the bottom of the first bevel gear, and an arc-shaped buckle is fixedly mounted on the bottom of the heating block.
[0014] The arc-shaped buckle can be arranged to buckle the circular ring, thereby increasing the stability of the circular ring buckle when it moves.
[0015] A fixing groove is provided on the top of the turntable, the circular buckle is fixedly installed in the fixing groove, the sealing gasket is fixedly installed on the top of the circular buckle, and the nozzle is fixedly installed on the bottom of the circular buckle.
[0016] The sealing gasket provided can increase the sealing performance between the heating block and the nozzle.
[0017] In the above technical solution, the utility model provides a 3D printing nozzle, which has the following beneficial effects:
[0018] The heating rod is set to evenly heat the wire in the melting chamber, thereby increasing the heat storage capacity of the heating block while meeting the printing quality and high-speed printing requirements, thereby ensuring that the temperature difference in each direction of the same cross-section is almost zero, thereby reducing the heat fluctuation of the heating component caused by the melting of the wire, thereby achieving rapid lateral stabilization of the temperature of the heating block during printing. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0020] Figure 1A schematic diagram of a 3D printing nozzle structure provided for a 3D printing nozzle embodiment of the utility model.
[0021] Figure 2 A schematic diagram of the structure of a replacement component provided for a 3D printing nozzle embodiment of the utility model.
[0022] Figure 3 A schematic diagram of the cross-sectional structure of a replacement component provided in a 3D printing nozzle embodiment of the utility model.
[0023] Figure 4 A schematic diagram of the heating block structure provided for a 3D printing nozzle embodiment of the utility model.
[0024] 1. Heating block; 2. Heating assembly; 3. Replacement assembly; 4. Nozzle; 5. Heating rod; 6. Temperature measuring probe; 7. Melting chamber; 8. Fastening screw; 9. Fastening groove; 10. Temperature measuring groove; 11. First circular groove; 12. First bevel gear; 13. Second bevel gear; 14. U-shaped plate; 15. Knob; 16. Spring; 17. Semicircular protrusion; 18. Turntable; 19. Arc buckle; 20. Ring buckle; 21. Sealing gasket; 22. Second circular groove; 23. Slide groove 8; 24. Semicircular groove; 25. Fixing groove. DETAILED DESCRIPTION
[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0026] like Figure 1-4 As shown, a 3D printing nozzle is provided in an embodiment of the utility model.
[0027] It includes a heating block 1, a heating component 2, a replacement component 3 and a nozzle 4. The heating component 2 is arranged in the heating block 1. The heating component 2 includes a heating rod 5, a temperature measuring probe 6 and a fastening screw 8. Fastening grooves 9 are provided on the sides of the heating block 1. The heating rod 5 is clamped in the fastening groove 9. A temperature measuring groove 10 is provided on the top of the heating block 1. The temperature measuring probe 6 is fixedly installed in the temperature measuring groove 10. A melting cavity 7 is provided on the top of the heating block 1. A first circular groove 11 is provided on the top of the heating block 1. The first circular groove 11 is connected to the fastening groove 9. The fastening screw 8 is slidably installed in the first circular groove 11, and the fastening screw 8 is threadedly connected to the fastening groove 9.
[0028] The heating rod 5 is arranged to heat the wire in the melting chamber 7 uniformly, thereby increasing the heat storage capacity of the heating block 1 while meeting the printing quality and high-speed printing requirements, thereby ensuring that the temperature difference in each direction of the same cross section is almost zero, thereby reducing the heat fluctuation of the heating component 2 caused by the melting of the wire, thereby achieving a rapid lateral temperature stabilization of the heating block 1 during printing.
[0029] The heating block 1 is in the shape of a flat rectangular parallelepiped and is made of brass with good heat transfer performance. The inner diameter of the nozzle 4 of the heating block 1 is reduced to increase the wire output speed after melting. An insulation layer is added outside the heating block 1 to reduce heat dissipation.
[0030] The heating rod 5 is embedded in various directions inside the heating block. Through the heat transfer function of the heating block 5, the heat is quickly transferred to the melting chamber 7. The tightening screw 8 fixes the outer opening of the heating rod 5 to maintain the shape of the heating block 1; the temperature measuring probe 6 is embedded in the top of the heating block 1 and close to the melting chamber 7, and the temperature of the melting chamber 7 can be measured.
[0031] The cross-sectional length and width of the heating block 1 is 20 mm×20 mm, which is optimized and enlarged compared with the cross-sectional length and width of the common heating block 10 mm×10 mm, and the heating rods 5 are arranged in four directions respectively.
[0032] Reference Figure 2 The replacement assembly 3 of this embodiment includes a first bevel gear 12, a second bevel gear 13, a U-shaped plate 14, a knob 15, a spring 16, a semicircular protrusion 17, a turntable 18, an arc buckle 19, a circular buckle 20 and a sealing gasket 21. The first bevel gear 12 is rotatably installed at the bottom of the heating block 1.
[0033] The replacement component 3 can be provided to facilitate the staff to replace the nozzles 4 of different sizes according to actual needs, thereby improving the flexibility of the 3D printing nozzle when using it.
[0034] The U-shaped plate 14 is fixedly mounted on the rear side of the heating block 1 . A second circular groove 22 is formed on the rear side of the U-shaped plate 14 . The second bevel gear 13 is rotatably mounted in the second circular groove 22 . The knob 15 is fixedly mounted on the rear side of the second bevel gear 13 .
[0035] The knob 15 can drive the nozzle 4 to rotate through the second bevel gear 13 and the first bevel gear 12, so that the staff can replace the nozzles 4 of different sizes as needed.
[0036] A slide groove 23 is provided at the bottom of the heating block 1 , the semicircular protrusion 17 is slidably installed in the slide groove 23 , the spring 16 is fixedly installed between the heating block 1 and the semicircular protrusion 17 , and a semicircular groove 24 is provided at the top of the first bevel gear 12 .
[0037] The semicircular groove 24 can limit the rotating disk 18 through the semicircular protrusion 17, thereby increasing the stability of the rotating disk 18 when rotating.
[0038] The turntable 18 is fixedly mounted on the bottom of the first bevel gear 12 , and an arc-shaped buckle 19 is fixedly mounted on the bottom of the heating block 1 .
[0039] The arc-shaped buckle 19 can be arranged to hold the circular buckle 20, thereby increasing the stability of the circular buckle 20 when moving.
[0040] A fixing groove 25 is formed on the top of the turntable 18 , the annular buckle 20 is fixedly installed in the fixing groove 25 , the sealing gasket 21 is fixedly installed on the top of the annular buckle 20 , and the nozzle 4 is fixedly installed on the bottom of the annular buckle 20 .
[0041] The sealing gasket 21 can enhance the sealing performance between the heating block 1 and the nozzle 4 .
[0042] Working principle: First, turn the knob 15 to drive the turntable 18 to rotate through the first bevel gear 12 and the second bevel gear 13. The turntable 18 drives the nozzle 4 to move through the circular buckle 20. The arc buckle 19 limits the circular buckle 20. The semicircular protrusion 17 limits the second bevel gear 13. Pull the knob 15 to drive the first bevel gear 12 to move, thereby preventing accidental touch. After the nozzle 4 is adjusted, the wire is squeezed into the melting chamber 7 through the feed hole of the heating block 1, and is melted into liquid by the heating rod 5 in the melting chamber 7. At the same time, the equipment continuously transports the wire. The molten wire material continues to enter the melting chamber 7, giving the melted wire material in the melting chamber 7 a corresponding thrust, and the wire material in the melting chamber 7 is ejected from the nozzle 4 through the circular buckle 20. As the unmelted wire material continues to squeeze in, the melted wire material is continuously ejected from the nozzle 4 at a relatively high speed, thereby increasing the heat storage capacity of the heating block 1 while meeting the printing quality and high-speed printing requirements, thereby ensuring that the temperature difference in each direction of the same cross section is almost zero, thereby reducing the heat fluctuation of the heating component 2 caused by the melting of the wire material, thereby achieving a rapid lateral temperature stabilization of the heating block 1 during printing.
[0043] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A 3D printing nozzle, comprising a heating block (1), a heating component (2), a replacement component (3) and a nozzle (4), characterized in that: The heating component (2) is arranged in the heating block (1), and the heating component (2) comprises a heating rod (5), a temperature measuring probe (6) and a fastening screw (8). The heating block (1) is provided with a fastening groove (9) on its circumference, and the heating rod (5) is clamped in the fastening groove (9). The top of the heating block (1) is provided with a temperature measuring groove (10), and the temperature measuring probe (6) is fixedly installed in the temperature measuring groove (10). The top of the heating block (1) is provided with a melting cavity (7). The top of the heating block (1) is provided with a first circular groove (11), and the first circular groove (11) is connected to the fastening groove (9). The fastening screw (8) is slidably installed in the first circular groove (11), and the fastening screw (8) is threadedly connected to the fastening groove (9).
2. A 3D printing nozzle according to claim 1, characterized in that: The exchange assembly (3) comprises a first bevel gear (12), a second bevel gear (13), a U-shaped plate (14), a knob (15), a spring (16), a semicircular protrusion (17), a turntable (18), an arc-shaped buckle (19), a circular buckle (20) and a sealing gasket (21); the first bevel gear (12) is rotatably mounted on the bottom of the heating block (1).
3. A 3D printing nozzle according to claim 2, characterized in that: The U-shaped plate (14) is fixedly mounted on the rear side of the heating block (1); a second circular groove (22) is provided on the rear side of the U-shaped plate (14); the second bevel gear (13) is rotatably mounted in the second circular groove (22); and the knob (15) is fixedly mounted on the rear side of the second bevel gear (13).
4. A 3D printing nozzle according to claim 2, characterized in that: A slide groove (23) is provided at the bottom of the heating block (1), the semicircular protrusion (17) is slidably installed in the slide groove (23), the spring (16) is fixedly installed between the heating block (1) and the semicircular protrusion (17), and a semicircular groove (24) is provided at the top of the first bevel gear (12).
5. A 3D printing nozzle according to claim 2, characterized in that: The rotating disk (18) is fixedly mounted on the bottom of the first bevel gear (12), and an arc-shaped buckle (19) is fixedly mounted on the bottom of the heating block (1).
6. A 3D printing nozzle according to claim 2, characterized in that: The top of the rotating disk (18) is provided with a fixing groove (25), the circular buckle (20) is fixedly mounted in the fixing groove (25), the sealing gasket (21) is fixedly mounted on the top of the circular buckle (20), and the nozzle (4) is fixedly mounted on the bottom of the circular buckle (20).