High-speed quick-plug print head assembly

Abstract

The utility model discloses a high-speed quick-insert printing nozzle assembly, and relates to the technical field of printing nozzles. The utility model includes a nozzle cover, a PCB adapter plate is installed in the nozzle cover, an air guide is installed on the lower side of the nozzle cover, an extrusion wheel assembly is installed in the nozzle cover, an integrated nozzle is installed on the lower side of the extrusion wheel assembly, and the PCB adapter plate is located on one side of the extrusion wheel assembly. The utility model sets two side closing covers to rotate and cooperate with the two sides of the discharge pipe to close the discharge pipe, the two side closing covers are larger than the opening of the discharge pipe, and a torsion spring is set between the closing cover and the discharge pipe to drive the two side closing covers to close the opening of the discharge pipe through its action force, thereby preventing the material from dripping when the printing nozzle is disassembled and assembled, and the two side placement blocks are in contact with one side of the two side closing covers so that the two side closing covers are rotated to open, which is convenient for disassembly and assembly and also closes the discharge pipe of the printer.

Description

Technical Field

[0001] The utility model belongs to the field of printing nozzles, and in particular relates to a high-speed quick-insertion printing nozzle assembly. Background Art

[0002] With the continuous advancement of 3D printing technology and the rapid expansion of the market, the demand for efficient and fast extrusion nozzle components is also growing. Old nozzle components are often difficult to meet the printing needs of new consumables due to design limitations and material compatibility issues, so updates and iterations have become an indispensable part of the 3D printing industry.

[0003] A Chinese patent with announcement number CN112917910B discloses a 3D printing quick-release nozzle assembly. It includes a mounting seat, a limit assembly, a nozzle assembly body and a sleeve; the nozzle assembly body is movably clamped at the lower end of the mounting seat; a plurality of groups of limit assemblies are arranged in a circular array and installed at the lower part of the side wall of the mounting seat; the limit assembly includes a toggle part and a clamping part; the toggle part is hinged in the first mounting hole, and one end of the toggle part faces the direction of the central axis of the mounting seat. By movably clamping the sleeve on the nozzle assembly body, and one end of the sleeve can conflict with the limit assembly, the limit state of the limit assembly can be adjusted. The nozzle assembly does not need to directly contact the nozzle assembly body when disassembling. The user can immediately remove the nozzle assembly for subsequent cleaning after using the 3D printer, which saves time and effort for disassembly and assembly.

[0004] When the above-mentioned print head assembly is disassembled, replaced and cleaned, the printer outlet cannot be closed in time, and raw materials are prone to dripping from the printer outlet during the disassembly process.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a high-speed quick-insert printing nozzle assembly.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0008] A high-speed quick-insert printing nozzle assembly comprises a nozzle cover, a PCB adapter plate is installed in the nozzle cover, an air guide is installed on the lower side of the nozzle cover, an extrusion wheel assembly is installed in the nozzle cover, an integrated nozzle is installed on the lower side of the extrusion wheel assembly, and the PCB adapter plate is located on one side of the extrusion wheel assembly;

[0009] A nozzle mounting plate is installed on one side of the nozzle cover, a proximity switch is installed on one side of the nozzle mounting plate, and the proximity switch is located inside the nozzle cover. An extrusion mechanism is installed on the other side of the nozzle mounting plate, and a planetary frame assembly is arranged inside the extrusion mechanism. An auxiliary cooling fan is installed at the bottom of the nozzle mounting plate, and a mounting assembly is arranged between the nozzle cover and the printer.

[0010] Optionally, the planetary carrier assembly includes a planetary carrier, a plurality of planetary gear bearings are arranged on one side of the planetary carrier, a planetary gear is arranged on one side of the planetary gear bearing, a planetary carrier front end flange bearing is arranged on the other side of the planetary carrier, an extruded driving gear is arranged on one side of the planetary carrier front end flange bearing, and a planetary carrier end bearing is arranged at one end of the extruded driving gear.

[0011] Optionally, the extrusion wheel assembly includes a handle, a first extrusion follower gear bearing and a second extrusion follower gear bearing are arranged on both sides of the handle, an extrusion follower gear and an isolation column are arranged between the first extrusion follower gear bearing and the second extrusion follower gear bearing, a hand screw is arranged on one side of the handle, a gasket and a handle spring are sleeved on the hand screw, a gear shaft and a handle shaft are arranged on the handle, and the gear shaft is located at the axis center of the first extrusion follower gear bearing and the second extrusion follower gear bearing.

[0012] Optionally, a silicone sleeve is installed at the bottom of the integrated nozzle, a ceramic heating plate is installed on the silicone sleeve, a heating plate fixing plate is arranged between the integrated nozzle and the silicone sleeve, a thermistor is installed on one side of the integrated nozzle, a step screw is arranged on the top of the integrated nozzle, a heat dissipation aluminum block is installed at the bottom of the extrusion wheel assembly, a heat dissipation fan is installed on one side of the heat dissipation aluminum block, the auxiliary heat dissipation fan includes an air guide and a turbo fan, and an adapter board upper plate and an adapter board lower plate are arranged on the PCB adapter board.

[0013] Optionally, the installation assembly includes a feed pipe installed on one side of the nozzle cover, an outlet pipe installed on one side of the printer, two closing covers elastically fitted on the outlet pipe, and placement blocks installed on both sides of the feed pipe, the outlet pipe is provided with two installation grooves and a square groove, the placement block is located in the installation groove, the placement block abuts against one side of the closing cover, a fixed block is installed on one side of the feed pipe, the fixed block is located in the square groove, a placement groove is provided on one side of the feed pipe, a clamping slot is provided on one side of the fixed block, moving columns are slidably fitted on both sides of the outlet pipe, a clamping block is installed on one side of the moving column, the clamping block is clamped in the clamping slot, and a spring is sleeved on the moving column.

[0014] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0015] The high-speed quick-insert printing nozzle assembly has a closing effect on the two sides of the discharge pipe by arranging closing covers on both sides to rotate and cooperate with the two sides of the discharge pipe. The closing covers on both sides are larger than the opening of the discharge pipe. A torsion spring is arranged between the closing cover and the discharge pipe, and the closing covers on both sides are driven by the action force thereof to close the opening of the discharge pipe, thereby preventing material from dripping when the printing nozzle is disassembled and assembled. When the printing nozzle is installed, the placing blocks on both sides abut against one side of the closing covers on both sides so that the closing covers on both sides are rotated to open. The raised closing cover can be located in the placing groove, and the clamping block is clamped in the clamping groove of the fixing block to fix it, thereby facilitating disassembly and assembly while also closing the discharge pipe of the printer.

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall exploded structure of an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the embodiment of the utility model;

[0020] Figure 3 This is a schematic structural diagram of a planet carrier assembly according to an embodiment of the utility model;

[0021] Figure 4 This is a schematic structural diagram of an extrusion wheel assembly according to an embodiment of the utility model;

[0022] Figure 5 This is a schematic structural diagram of an integrated nozzle according to an embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the heat dissipation aluminum block and the heat dissipation fan of the utility model embodiment

[0024] Figure 7 This is a schematic diagram of the structure of the air guide member of the utility model embodiment

[0025] Figure 8 This is a schematic diagram of the structure of the PCB adapter board of the utility model embodiment

[0026] Fig. 9 This is a schematic diagram of the structure of the connection between the feed pipe and the discharge pipe of the utility model embodiment

[0027] Fig.10 This is a structural schematic diagram of the cross-sectional view of the connection between the feed pipe and the discharge pipe of the embodiment of the utility model

[0028] Fig.11 This is a schematic diagram of the structure of the closing cover of the utility model embodiment located in the placement groove

[0029] Fig.12 This is a schematic diagram of the structure of the connection between the card block and the card slot in the embodiment of the utility model

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. Nozzle cover; 2. PCB adapter plate; 3. Air guide; 4. Integrated nozzle; 5. Extrusion wheel assembly; 6. Proximity switch; 7. Nozzle mounting plate; 8. Extrusion mechanism; 9. Auxiliary cooling fan; 10. Planetary gear; 11 Planetary gear bearing; 12 Planetary carrier; 13 Planetary carrier front flange bearing; 14. Extrusion driving gear; 15. Planetary carrier end bearing; 16. First extrusion follower gear bearing; 17. Extrusion follower gear; 18. Isolation column; 19. Second extrusion follower gear bearing; 20. Handle; 21. Gear shaft; 22. Handle shaft; 23. Pad Plate; 24, handle spring; 25, hand screw; 26, silicone sleeve; 27, heating plate fixing plate; 28, thermistor; 29, ceramic heating plate; 31, step screw; 32, heat dissipation aluminum block; 33, cooling fan; 37, turbo fan; 38, adapter plate upper plate; 39, adapter plate lower plate; 101, feed pipe; 102, discharge pipe; 103, placement block; 104, fixing block; 105, square slot; 106, installation slot; 108, closing cover; 109, placement slot; 110, card slot; 112, moving column; 113, spring; 114, card block.

[0032] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0033] The utility model will now be further described in detail with reference to the accompanying drawings.

[0034] See also Figure 1-12 As shown, in this embodiment, a high-speed quick-insert printing nozzle assembly is provided, including a nozzle cover 1, a PCB adapter plate 2 is installed in the nozzle cover 1, an air guide 3 is installed on the lower side of the nozzle cover 1, an extrusion wheel assembly 5 is installed in the nozzle cover 1, an integrated nozzle 4 is installed on the lower side of the extrusion wheel assembly 5, and the PCB adapter plate 2 is located on one side of the extrusion wheel assembly 5;

[0035] A nozzle mounting plate 7 is installed on one side of the nozzle outer cover 1, a proximity switch 6 is installed on one side of the nozzle mounting plate 7, and the proximity switch 6 is located inside the nozzle outer cover 1. An extrusion mechanism 8 is installed on the other side of the nozzle mounting plate 7, and a planetary frame assembly is arranged in the extrusion mechanism 8. An auxiliary cooling fan 9 is installed at the bottom of the nozzle mounting plate 7, and a mounting assembly is arranged between the nozzle outer cover 1 and the printer.

[0036] The planetary carrier assembly of this embodiment includes a planetary carrier 12, a plurality of planetary gear bearings 11 are arranged on one side of the planetary carrier 12, a planetary gear 10 is arranged on one side of the planetary gear bearing 11, a planetary carrier front end flange bearing 13 is arranged on the other side of the planetary carrier 12, an extruded driving gear 14 is arranged on one side of the planetary carrier front end flange bearing 13, and a planetary carrier end bearing 15 is arranged at one end of the extruded driving gear 14.

[0037] The extrusion wheel assembly 5 of the present embodiment includes a handle 20, and a first extrusion follower gear bearing 16 and a second extrusion follower gear bearing 19 are arranged on both sides of the handle 20, an extrusion follower gear 17 and an isolation column 18 are arranged between the first extrusion follower gear bearing 16 and the second extrusion follower gear bearing 19, a hand screw 25 is arranged on one side of the handle 20, a gasket 23 and a handle spring 24 are sleeved on the hand screw 25, a gear shaft 21 and a handle shaft 22 are arranged on the handle 20, and the gear shaft 21 is located at the axis of the first extrusion follower gear bearing 16 and the second extrusion follower gear bearing 19.

[0038] The integrated nozzle 4 of the present embodiment is provided with a silicone sleeve 26 at the bottom, a ceramic heating plate 29 is provided on the silicone sleeve 26, a heating plate fixing plate 27 is provided between the integrated nozzle 4 and the silicone sleeve 26, a thermistor 28 is provided on one side of the integrated nozzle 4, a step screw is provided on the top of the integrated nozzle 4, a heat dissipation aluminum block 32 is provided at the bottom of the extrusion wheel assembly 5, a heat dissipation fan 33 is provided on one side of the heat dissipation aluminum block 32, an auxiliary heat dissipation fan 9 includes an air guide 3 and a turbo fan 37, and an adapter plate upper plate 38 and an adapter plate lower plate 39 are provided on the pcb adapter plate 2.

[0039] The installation assembly of the present embodiment includes a feed pipe 101 installed on one side of the nozzle cover 1, an outlet pipe 102 installed on one side of the printer, two closing covers 108 elastically fitted on the outlet pipe 102, and placement blocks 103 installed on both sides of the feed pipe 101. Two installation grooves 106 and a square groove 105 are provided on the outlet pipe 102. The placement block 103 is located in the installation groove 106. The placement block 103 abuts against one side of the closing cover 108. A fixing block 104 is installed on one side of the feed pipe 101. The fixing block 104 is located in the square groove 105. A placement groove 109 is provided on one side of the feed pipe 101. A clamping groove 110 is provided on one side of the fixing block 104. Moving columns 112 are slidably fitted on both sides of the outlet pipe 102. A clamping block 114 is installed on one side of the moving column 112. It is clamped in the card slot 110, and a spring 113 is sleeved on the movable column 112; by setting the closing covers 108 on both sides to rotate and cooperate with the two sides of the discharge pipe 102 to close it, the closing covers 108 on both sides are larger than the opening of the discharge pipe 102, and a torsion spring is set between the closing cover 108 and the discharge pipe 102 to drive the closing covers 108 on both sides to close the opening of the discharge pipe 102 through its action force, so as to prevent the material from dripping when the printing nozzle is disassembled and assembled. When the printing nozzle is installed, the placing blocks 103 on both sides abut against one side of the closing covers 108 on both sides so that the closing covers 108 on both sides are rotated to open, and the tilted closing covers 108 can be located in the placing slot 109, and the clamping block 114 is clamped in the card slot 110 of the fixing block 104 to fix it.

[0040] The air guide member of this embodiment is installed on the lower side of the nozzle cover, and the air guide member is fixed to the pin of the nozzle with screws; the PCB adapter plate is fixed to the gear box of the extrusion wheel assembly with screws; the integrated nozzle is fixed to the heat dissipation aluminum block with screws, and the heat dissipation aluminum block is fixed to the lower side of the gear box with screws; the proximity switch is locked with screws according to the corresponding holes reserved on the nozzle adapter plate; the three pinions on the planetary carrier assembly are meshed with the gears of the gear seat; the extrusion wheel assembly is fixed to the nozzle mounting plate with screws; the auxiliary heat dissipation assembly is locked together with the holes reserved on the nozzle mounting plate with screws; the motor knob part is an injection molded part with a round hole in the center of the part, which is an interference fit with the output shaft of the gear motor, and the output shaft of the gear motor is pressed into the motor knob by pressure; the nozzle cover is fixed by the mutual attraction between the magnet and the nozzle mounting plate

[0041] In this embodiment, specifically, when the gear motor starts to rotate, the gear on the motor shaft drives the three planetary gears 10 on the planetary carrier 12. These planetary gears 10 rotate while also revolving, thereby driving the planetary carrier 12 assembly to rotate. The extrusion driving gear 14 mounted on the planetary carrier 12 will also rotate accordingly. This extrusion driving gear 14 meshes with the extrusion follower gear 17 on the handle 20, and the two gears rotate toward the center together. When they rotate, the printing consumables are extruded from the middle of the extrusion groove of the gear. This design ensures stable extrusion of the printing consumables and can still maintain good printing effects even at high-speed rotation. By optimizing the gear design and material selection, the performance and durability of the nozzle assembly can be further improved.

[0042] In this embodiment, the working principle of the nozzle assembly involves multiple interrelated parts. The following is a detailed explanation of its working principle:

[0043] Fixing block and component assembly: The throat and nozzle are fixed on the fixing block to form a complete structure.

[0044] Heating and temperature control: The core of the component is the ceramic heating plate 29, which is responsible for heating the heating block to the set temperature. The thermistor 28 is responsible for monitoring the temperature. When the heating block reaches the set temperature, the ceramic heating plate 29 stops heating to keep the temperature stable. When the temperature drops below the set value, the ceramic heating plate 29 starts heating again, and the cycle continues to ensure that the temperature of the heating block is always maintained within the set range.

[0045] Function of the silicone sleeve 26: On the outside of the heating block, there is a silicone sleeve 26. The main function of this silicone sleeve 26 is to better maintain the constant temperature of the heating block, reduce heat loss, and provide an additional protective layer.

[0046] Filament extrusion process: When the extrusion gear rotates, the filament is extruded and enters the throat. When passing through the heating block, the filament is softened because the high temperature of the heating block makes the filament soft and easy to shape. Then, the softened filament is extruded from the nozzle and is ready for printing.

[0047] This design ensures the consistency and temperature control of the consumables during the printing process, thereby improving the printing quality and effect. In addition, the precise matching of each component and the selection of high-efficiency materials also further enhance the overall performance and stability of the printhead assembly.

[0048] The nozzle assembly of this embodiment has taken effective measures to prevent heat transfer and heat dissipation to ensure the stable operation of the system and extend the service life of each component. The following is a detailed explanation of its working principle:

[0049] Heat management of metal pipes: The main function of metal pipes is to transfer heated consumables, but at the same time, they may transfer heat to other components above. To avoid this, it is necessary to dissipate heat in time at the upper end of the metal pipe.

[0050] Material selection of the mounting base: In order to improve the heat transfer efficiency, the mounting base is made of aluminum alloy. Aluminum alloy has excellent thermal conductivity and can quickly transfer heat from the heating block.

[0051] Heat sink design: A heat sink is designed on the mounting base, which can significantly increase the heat dissipation area, thereby improving the heat dissipation efficiency. By increasing the heat dissipation area, the temperature of the mounting base and its surrounding components can be effectively reduced.

[0052] Enhance heat dissipation with fans: To further enhance the heat dissipation effect, the system is also equipped with a throat heat dissipation blower fan. This fan directs the wind to the throat heat dissipation air guide 3, and then to the heat sink on the mounting bracket. Through forced ventilation, excess heat can be quickly removed to ensure that the system temperature is maintained within an appropriate range.

[0053] In summary, the nozzle assembly effectively manages the heat generated during operation through a series of carefully designed and optimized heat dissipation measures, thereby improving the stability and service life of the system. This efficient heat dissipation solution ensures that the nozzle assembly can maintain stable performance under various working conditions.

[0054] In this embodiment, the configuration of the automatic leveling component: the side of the extrusion mechanism 8 is equipped with an automatic leveling component, the purpose of this component is to ensure that the distance between the nozzle and the printing platform remains constant.

[0055] Multi-point detection and position detection: Before printing begins, the automatic leveling component uses sensors to perform multi-point detection to measure the distance between the printing platform and the nozzle. This multi-point detection can provide a more comprehensive understanding of the status of the platform surface and capture any subtle unevenness or height differences.

[0056] Software calculation and first leveling: By inputting the actual detected distance position data into the control software, the system can make accurate calculations. Combined with this data, the software can guide the leveling component to perform the first leveling to achieve the optimal distance between the nozzle and the printing platform.

[0057] Z-axis compensation: During the printing process, the distance between the nozzle and the printing platform may change due to various factors (such as thermal expansion and contraction, material properties, etc.). The automatic leveling component can monitor this change in real time and adjust the position of the nozzle through Z-axis compensation to ensure that its distance from the platform remains stable.

[0058] Through this automatic leveling mechanism, the nozzle assembly can maintain a high degree of stability throughout the printing process, whether before or during printing, it can ensure that the distance between the nozzle and the printing platform is accurately controlled, thereby improving the accuracy and quality of the final printed product. This design greatly reduces the need for manual adjustment and improves production efficiency and printing results.

[0059] In this embodiment, the model cooling fan assembly is mainly composed of a turbo fan 37 (3010 turbo fan), and this design is intended to solve the problem of insufficient model cooling time during high-speed printing. By using a fan for auxiliary heat dissipation, it can be ensured that the model is fully cooled during high-speed printing, thereby obtaining a more perfect printing effect.

[0060] The turbo fan 37 has a directional airflow guiding property, which can concentrate wind force and improve heat dissipation efficiency. During the printing process, as the model is stacked layer by layer, each layer needs to be quickly cooled and shaped in a short time to ensure the printing accuracy and integrity of the model. If the cooling time is not enough, the model may have problems such as thermal deformation and warping, resulting in poor printing effect.

[0061] By equipping the machine with a fan assembly, the cooling process of the printed model can be accelerated. The airflow generated by the fan can quickly remove the heat from the surface of the model, shorten the cooling time, and enable the model to reach a stable printing state faster. This not only improves printing efficiency, but also helps reduce printing errors and scrap rates.

[0062] In addition, the design of the cooling fan assembly can be adjusted according to actual printing needs. By adjusting the fan speed or airflow intensity, the cooling effect of the model can be further optimized to achieve a more personalized printing experience.

[0063] In short, the model cooling fan assembly, as an effective auxiliary heat dissipation method, can provide a stable cooling effect for high-speed printing, thereby improving printing quality and efficiency. This design provides strong support for professional printing or printing tasks with high precision requirements.

[0064] In this embodiment, this new upper and lower plate control method brings many advantages to the print head, which are mainly reflected in the following aspects:

[0065] Space optimization: Using two upper and lower boards for control can reduce the required space occupancy and make the structure of the entire print head more compact. This not only helps to reduce the size of the equipment and make it lighter, but also helps to improve the integration of the equipment and simplify the installation and maintenance process.

[0066] Speed ​​improvement: Compared with the old adapter plate control method, the upper and lower plate control method can start components faster. This means that the print head responds faster and can achieve a more efficient printing process. This helps to shorten the printing time, improve production efficiency, and meet the needs of fast printing.

[0067] High detection accuracy: This new control method uses high-precision component detection technology to more accurately detect various parameters of the print head. This includes key parameters such as ink flow and temperature, ensuring the accuracy and stability of the printing effect. High detection accuracy also helps to promptly detect and correct potential problems and improve the reliability of the equipment.

[0068] Simplified circuit design: Through centralized control, the use of upper and lower board control can simplify circuit design. This reduces circuit complexity, reduces manufacturing difficulty, and reduces potential failure points. Simplified circuit design also helps reduce maintenance costs and reduces repair and troubleshooting time.

[0069] Compatibility and scalability: The upper and lower board control method provides good compatibility and scalability. With the continuous advancement of technology, new functions or interfaces can be easily added between the two boards to meet the changing market needs. This facilitates the upgrade and improvement of the print head, enabling it to adapt to future developments.

[0070] Cost and Maintenance: Due to its high efficiency and reliability, the new upper and lower board control method helps to reduce operating costs and maintenance costs. It reduces the need for unnecessary repairs and replacement of parts, thereby reducing long-term operating costs. In addition, due to its simple circuit design and high stability, the maintenance process is also easier and faster, further reducing maintenance costs.

[0071] In summary, the new upper and lower plate control method has significant advantages in space optimization, speed improvement, detection accuracy, circuit design, compatibility and scalability, as well as cost and maintenance. This not only improves the performance and reliability of the print head, but also helps to reduce operating costs and maintenance costs. This innovative design concept helps to promote the development of printing technology and meet the growing demand for efficient and high-precision printing.

[0072] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A high-speed quick-insert printing nozzle assembly, characterized in that: include: A nozzle cover (1), a PCB adapter plate (2) is installed in the nozzle cover (1), an air guide (3) is installed on the lower side of the nozzle cover (1), an extrusion wheel assembly (5) is installed in the nozzle cover (1), an integrated nozzle (4) is installed on the lower side of the extrusion wheel assembly (5), and the PCB adapter plate (2) is located on one side of the extrusion wheel assembly (5); A nozzle mounting plate (7) is installed on one side of the nozzle outer cover (1), a proximity switch (6) is installed on one side of the nozzle mounting plate (7), and the proximity switch (6) is located inside the nozzle outer cover (1). An extrusion mechanism (8) is installed on the other side of the nozzle mounting plate (7), and a planetary frame assembly is arranged inside the extrusion mechanism (8). An auxiliary cooling fan (9) is installed at the bottom of the nozzle mounting plate (7), and a mounting assembly is arranged between the nozzle outer cover (1) and the printer.

2. A high-speed quick-insert printing nozzle assembly according to claim 1, characterized in that: The planet carrier assembly comprises a planet carrier (12), a plurality of planetary gear bearings (11) are arranged on one side of the planet carrier (12), a planetary gear (10) is arranged on one side of the planetary gear bearing (11), a planet carrier front end flange bearing (13) is arranged on the other side of the planet carrier (12), an extruded driving gear (14) is arranged on one side of the planet carrier front end flange bearing (13), and a planet carrier end bearing (15) is arranged at one end of the extruded driving gear (14).

3. A high-speed quick-insert printing nozzle assembly according to claim 1, characterized in that: The extrusion wheel assembly (5) comprises a handle (20), a first extrusion follower gear bearing (16) and a second extrusion follower gear bearing (19) are arranged on both sides of the handle (20), and an extrusion follower gear (17) and an isolation column (18) are arranged between the first extrusion follower gear bearing (16) and the second extrusion follower gear bearing (19).

4. A high-speed quick-insert printing nozzle assembly according to claim 3, characterized in that: A hand screw (25) is provided on one side of the handle (20), a gasket (23) and a handle spring (24) are sleeved on the hand screw (25), a gear shaft (21) and a handle shaft (22) are provided on the handle (20), and the gear shaft (21) is located at the axis of the first extrusion follower gear bearing (16) and the second extrusion follower gear bearing (19).

5. A high-speed quick-insert printing nozzle assembly according to claim 1, characterized in that: A silicone sleeve (26) is installed at the bottom of the integrated nozzle (4), a ceramic heating plate (29) is installed on the silicone sleeve (26), a heating plate fixing plate (27) is arranged between the integrated nozzle (4) and the silicone sleeve (26), a thermistor (28) is installed on one side of the integrated nozzle (4), and a stepped screw is arranged on the top of the integrated nozzle (4).

6. A high-speed quick-insert printing nozzle assembly according to claim 1, characterized in that: A heat dissipation aluminum block (32) is installed at the bottom of the extrusion wheel assembly (5), a heat dissipation fan (33) is installed on one side of the heat dissipation aluminum block (32), the auxiliary heat dissipation fan (9) includes an air guide member (3) and a turbo fan (37), and an adapter plate upper plate (38) and an adapter plate lower plate (39) are arranged on the PCB adapter plate (2).

7. A high-speed quick-insert printing nozzle assembly according to claim 1, characterized in that: The mounting assembly comprises a feed pipe (101) mounted on one side of a nozzle cover (1), a discharge pipe (102) mounted on one side of a printer, two closing covers (108) elastically fitted on the discharge pipe (102), and placement blocks (103) mounted on both sides of the feed pipe (101).

8. A high-speed quick-insert printing nozzle assembly according to claim 7, characterized in that: The discharge pipe (102) is provided with two installation grooves (106) and a square groove (105), a placement block (103) is located in the installation groove (106), the placement block (103) is in contact with one side of the closing cover (108), a fixing block (104) is installed on one side of the feed pipe (101), the fixing block (104) is located in the square groove (105), and a placement groove (109) is provided on one side of the feed pipe (101).

9. A high-speed quick-insert printing nozzle assembly according to claim 8, characterized in that: A slot (110) is provided on one side of the fixed block (104), and movable columns (112) are slidably matched on both sides of the discharge pipe (102). A block (114) is installed on one side of the movable column (112), and the block (114) is engaged in the slot (110). A spring (113) is sleeved on the movable column (112).

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