Nozzle module and three-dimensional printer

Abstract

The utility model relates to a nozzle module and a three-dimensional printer. The nozzle module comprises a heat dissipation assembly; the locking assembly comprises a clamping ring piece fixed to the heat dissipation assembly and a knob piece connected to the clamping ring piece, the clamping ring piece is provided with a clamping hole and an opening which penetrate through the clamping ring piece in the first direction, and the opening is communicated with the clamping hole; the clamping ring piece is further provided with fixed abutting parts arranged on the two sides of the opening in the second direction, and the second direction is kept orthogonal to the first direction. The nozzle assembly sequentially penetrates through the clamping hole and the heat dissipation assembly in the first direction; and the knob piece can rotate around a first axis parallel to the second direction relative to the clamping ring piece so as to extrude or release the two fixed abutting parts in the second direction, so that the clamping ring piece clamps or releases the nozzle assembly. Quick mounting and quick dismounting can be achieved, mounting and dismounting are convenient, and the mounting and dismounting efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of 3D printing, and in particular to a nozzle module and a 3D printer. Background Art

[0002] Fused Deposition Modeling (FDM) is a method of melting filaments and then printing and stacking them layer by layer to form a three-dimensional object.

[0003] When the nozzle of a 3D printer is clogged, the nozzle needs to be removed from the printer, cleaned, and then reinstalled. If the nozzle is severely clogged, it may even need to be replaced. Therefore, the convenience of nozzle removal and installation is very important.

[0004] In the related art, nozzles often do not have a quick-release function. Even if some nozzles can be quickly released, the disassembly process is cumbersome and requires the use of other tools to achieve quick release, which seriously affects the loading and unloading efficiency. Utility Model Content

[0005] The embodiments of the present application provide a nozzle module and a three-dimensional printer, which can not only achieve quick installation and quick disassembly, but also facilitate installation and disassembly, thereby improving loading and unloading efficiency.

[0006] In a first aspect, the nozzle module provided in the embodiments of the present application includes:

[0007] heat dissipation components;

[0008] a locking assembly comprising a clamping ring fixed to the heat dissipation assembly and a knob connected to the clamping ring, the clamping ring having a clamping hole and an opening extending therethrough in a first direction, the opening being connected to the clamping hole, the clamping ring further having fixed abutting portions disposed on both sides of the opening in a second direction, the second direction being orthogonal to the first direction; and

[0009] a nozzle assembly, sequentially passing through the clamping hole and the heat dissipation assembly along the first direction;

[0010] The knob can rotate relative to the clamping ring around a first axis parallel to the second direction to squeeze or release the two fixed abutting portions along the second direction, so that the clamping ring clamps or releases the nozzle assembly.

[0011] In some embodiments, the clamping ring is elastic, and when the knob releases the two fixed abutting portions, the clamping ring can release the nozzle assembly under the action of its own elasticity.

[0012] In some embodiments, the knob has two rotation abutting portions spaced apart in the second direction, and the relative positions of the two rotation abutting portions are fixed;

[0013] The two fixed abutting portions are located between the two rotating abutting portions;

[0014] The knob can rotate around the first axis so that the rotating abutment portion squeezes or releases the corresponding fixed abutment portion.

[0015] In some embodiments, the rotational abutment portion has a first wedge-shaped surface disposed facing the fixed abutment portion in the second direction and surrounding the first axis, and the fixed abutment portion has a second wedge-shaped surface disposed facing the rotational abutment portion in the second direction and surrounding the first axis;

[0016] The first wedge surface and the second wedge surface extend obliquely in the second direction respectively, and the second wedge surface abuts against the first wedge surface. The knob can rotate around the first axis so that the first wedge surface squeezes or releases the corresponding second wedge surface.

[0017] In some embodiments, the rotational abutting portion has a plurality of first wedge-shaped surfaces arranged around the first axis, and two adjacent first wedge-shaped surfaces are connected by a first transition surface;

[0018] The fixed supporting portion has a plurality of second wedge-shaped surfaces arranged around the first axis, and two adjacent second wedge-shaped surfaces are connected by a second transition surface.

[0019] In some embodiments, the fixed abutting portion has a receiving hole arranged facing the rotating abutting portion and with the first axis as the axis, the second wedge surface is formed on the bottom surface of the receiving hole, and the rotating abutting portion is rotatably connected to the receiving hole.

[0020] In some embodiments, the knob further includes two first connecting arms spaced apart and symmetrically arranged in the second direction and a second connecting arm connected to one end of the two connecting arms, and the other ends of the two first connecting arms are respectively fixed with the rotation supporting portion.

[0021] In some embodiments, the locking assembly further comprises two connecting members symmetrically arranged in the second direction;

[0022] The connecting member includes a rod portion with the first axis as an axis and a first flange portion formed at one end of the rod portion, and the other end of the rod portion is passed through the corresponding rotating abutment portion and fixed to the corresponding fixed abutment portion;

[0023] The rotating abutting portion abuts against the first flange portion at one side thereof in the second direction away from the fixed abutting portion.

[0024] In some embodiments, the rotational abutting portion is a split structure, comprising a detachably fixed first connecting portion and a first matching portion, wherein the first connecting portion is fixed to the corresponding first connecting arm, and the first wedge surface is formed on the first matching portion;

[0025] Alternatively, the rotation supporting portion is an integrated structure.

[0026] In some embodiments, one of the first connecting portion and the first matching portion is provided with a first limiting protrusion, and the other is provided with a first limiting recess, and the first limiting protrusion and the first limiting recess are plug-fitted together.

[0027] In some embodiments, the clamping ring further comprises a ring portion, wherein the ring portion has the clamping hole and the opening;

[0028] The fixed abutting portion is a split structure, and includes a second connecting portion and a second matching portion that are detachably fixed, the second connecting portion is fixed to the ring portion, and the second wedge surface is formed on the second matching portion; or, the fixed abutting portion is an integrated structure.

[0029] In some embodiments, one of the second connecting portion and the second matching portion is provided with a second limiting protrusion, and the other is provided with a second limiting recess, and the second limiting protrusion and the second limiting recess are plug-fitted.

[0030] In some embodiments, the clamping ring also includes two fixing parts symmetrically arranged about the ring portion, one end of the fixing part is formed on the ring portion, the other end of the fixing part extends along the circumference of the ring portion and has a gap with the ring portion, and the other end of the fixing part is detachably fixed to the heat dissipation assembly.

[0031] In some embodiments, the heat dissipation assembly includes a heat dissipation member, two heat insulation members, and two fixing members;

[0032] The two heat insulating members are symmetrically arranged on both sides of the heat dissipating member in the second direction, and the fixing members are sequentially passed through the corresponding fixing portions and the heat insulating members and fixed to the heat dissipating member;

[0033] The nozzle assembly is disposed through the heat sink.

[0034] In some embodiments, the nozzle assembly includes a throat fitting, a heat-conducting pipe fitting, and a nozzle fitting connected in sequence in the first direction, the throat fitting is passed through the heat dissipation assembly, and the nozzle assembly also includes a locking pipe fitting fixed to the outer periphery of the heat-conducting pipe fitting, and the locking pipe fitting is passed through the clamping hole.

[0035] In some embodiments, the nozzle module further includes a heating component, and the heating component is sleeved outside the heat-conducting pipe.

[0036] In some embodiments, the heat-conducting pipe comprises a pipe portion and a second flange portion circumferentially protruding from the pipe portion, wherein the second flange portion is provided at one end of the pipe portion close to the nozzle member;

[0037] The locking pipe is threadedly connected to an end of the pipe away from the second flange;

[0038] The heating component is arranged between the second flange portion and the locking tube.

[0039] In a second aspect, the 3D printer provided in an embodiment of the present application includes the nozzle module provided in any of the above embodiments.

[0040] Compared with the prior art, the beneficial features of the embodiments of the present application are as follows: the nozzle module and the three-dimensional printer, the nozzle module includes a heat dissipation component, a locking component and a nozzle component, the locking component includes a clamping ring fixed to the heat dissipation component and a knob connected to the clamping ring, the clamping ring has a clamping hole and an opening running through it in a first direction, the opening is connected to the clamping hole, the clamping ring also has a fixed abutment portion arranged on both sides of the opening in a second direction, the second direction is orthogonal to the first direction, the nozzle assembly is sequentially passed through the clamping hole and the heat dissipation component along the first direction, the knob can rotate relative to the clamping ring around the first direction parallel to the second direction Axis rotation; through the implementation mode of the present application, rotating the knob around the first axis can squeeze the two fixed abutment parts along the second direction to reduce the width of the opening in the second direction, so that the nozzle assembly can be clamped in the clamping hole of the clamping ring, which can achieve quick installation, and the installation process is simple, without the aid of other tools, thereby improving the installation efficiency; conversely, rotating the knob in the opposite direction can also release the two fixed abutment parts to increase the width of the opening in the second direction, so that the clamping ring can release the nozzle assembly, achieving quick disassembly, and the disassembly process is simple, without the aid of other tools, thereby improving the disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of the three-dimensional structure of the nozzle module according to an embodiment of the present application;

[0042] Figure 2 This is a front view of the nozzle module according to an embodiment of the present application;

[0043] Figure 3 for Figure 2 AA cross-sectional view;

[0044] Figure 4 for Figure 2 BB cross-sectional view;

[0045] Figure 5 for Figure 2 Left view of;

[0046] Figure 6 for Figure 5 CC cross-sectional view;

[0047] Figure 7 This is a schematic diagram of the locking assembly structure in the nozzle module of an embodiment of the present application;

[0048] Figure 8 This is an exploded view of the locking assembly in the nozzle module of the embodiment of the present application;

[0049] Figure 9 for Figure 8 A magnified view of the local structure;

[0050] Figure 10 This is a diagram showing the matching state of the first wedge surface and the second wedge surface when the nozzle module of the embodiment of the present application is in the lowered state;

[0051] Figure 11 This is a diagram showing the matching state of the first wedge surface and the second wedge surface when the nozzle module of the embodiment of the present application is in the up state;

[0052] Figure 12 This is a schematic structural diagram of the first matching portion in the nozzle module of an embodiment of the present application;

[0053] Figure 13 for Figure 12 A schematic diagram of the first mating portion from another perspective is shown;

[0054] Figure 14 for Figure 13 A top view of

[0055] Figure 15 This is a schematic structural diagram of the second matching portion in the nozzle module of an embodiment of the present application;

[0056] Figure 16 This is a diagram showing the matching state of the first wedge surface and the second wedge surface when the nozzle module of the embodiment of the present application is in the up state;

[0057] Figure 17 This is a diagram showing the matching state of the first wedge surface and the second wedge surface when the nozzle module of the embodiment of the present application is in the lowered state;

[0058] Figure 18This is a schematic diagram of the heat dissipation component structure in the nozzle module of an embodiment of the present application;

[0059] Figure 19 This is a schematic diagram of the structure of the nozzle assembly in the nozzle module of an embodiment of the present application;

[0060] Figure 20 for Figure 19 DD cross-sectional view;

[0061] Wherein: 1-heat dissipation assembly (101-heat dissipation member, 102-heat insulation member, 103-fixing member), 2-locking assembly (201-clamping ring member (2011-clamping hole, 2012-opening, 2014-fixed abutting portion (20141-second wedge surface, 20142-second transition surface, 20143-receiving hole, 20144-second connecting portion (201441-second limiting concave portion), 20145-second matching portion (201451-second limiting convex portion)), 2015-ring portion, 2016-fixing portion), 202-knob member (2022-rotating abutting portion (20221-first wedge surface, 20222-first transition surface, 20223-first 1. Connecting portion (202231-first limiting recess), 20224-first matching portion (202241-first limiting protrusion)), 2023-first connecting arm, 2024-second connecting arm), 203-connecting piece (2031-rod, 2032-first flange), 3-nozzle assembly (301-throat fitting, 302-heat conducting pipe fitting (3021-pipe, 3022-second flange (30221-mounting hole)), 303-nozzle fitting, 304-locking pipe fitting, 305-heat dissipation pipe fitting), 4-heating assembly (401-heating element, 402-protective shell, 403-temperature sensor), 5-pressure collection piece, 6-limiting piece, 7-first axis. DETAILED DESCRIPTION

[0062] To facilitate understanding of the present application, a more comprehensive description of the present application will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0063] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0065] Please refer to Figures 1 to 20 The nozzle module of the embodiment of the present application includes a heat dissipation component 1, a locking component 2 and a nozzle component 3. The locking component 2 includes a clamping ring 201 and a knob 202. The clamping ring 201 is fixed to the heat dissipation component 1, and the knob 202 is rotatably connected to the clamping ring 201. The clamping ring 201 has a clamping hole 2011 and an opening 2012. The clamping hole 2011 and the opening 2012 both pass through the clamping ring 201 in the first direction, and the opening 2012 is connected to the clamping hole 2011. The opening 2012 enables the clamping ring 201 to also have two fixed abutment portions 2014 arranged on both sides of the opening 2012 in the second direction, and the second direction is orthogonal to the first direction. The nozzle component 3 is sequentially penetrated in the clamping hole 2011 and the heat dissipation component 1 along the first direction. Among them, the knob 202 can rotate around the first axis 7 relative to the clamping ring 201, and the first axis 7 is parallel to the second direction. When the knob 202 rotates along the S direction to Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 7 When in the position shown, that is, when the knob 202 is in the up position, the knob 202 can press the two fixed abutting portions 2014 in the second direction, causing the two fixed abutting portions 2014 to move toward each other in the second direction, thereby reducing the width of the opening 2012 in the second direction, thereby allowing the clamping ring 201 to apply pressure to the nozzle assembly 3 and clamp the nozzle assembly 3. When the knob 202 is rotated in the N direction, which is opposite to the S direction, to the down position, the knob 202 can release the two fixed abutting portions 2014, causing the two fixed abutting portions 2014 to move backward in the second direction, thereby increasing the width of the opening 2012 in the second direction, thereby allowing the clamping ring 201 to release the nozzle assembly 3, thereby facilitating the user to remove the nozzle assembly 3 from the nozzle module.

[0066] In the embodiment of the present application, the width of the opening 2012 in the second direction can be changed by rotating the knob 202, thereby changing the aperture of the clamping hole 2011, so that the clamping ring 201 can clamp or release the nozzle assembly 3 inserted into the clamping hole 2011. This not only enables quick installation and quick removal with one twist, but also simplifies the installation and removal processes and does not require the use of other tools, thereby improving installation and removal efficiency. In addition, the locking assembly 2 can securely fix the nozzle assembly 3 to the heat dissipation assembly 1, eliminating the problem of the nozzle assembly 3 rotating and / or moving up and down during movement, and ensuring reliable fixation of the nozzle assembly 3.

[0067] In some embodiments, the clamping ring 201 is elastic. Therefore, when the knob 202 releases the two fixed abutting portions 2014, the clamping ring 201 can release the nozzle assembly 3 under its own elastic action, thereby effectively avoiding the clamping ring 201 still clamping the nozzle assembly 3 after the knob 202 releases the two fixed abutting portions 2014, further ensuring that the nozzle module can be quickly disassembled, thereby improving the disassembly efficiency.

[0068] In some embodiments, when the clamping ring 201 clamps the nozzle assembly 3, the two fixed abutting portions 2014 are still spaced apart in the second direction. Figure 2 、 Figure 3 and Figure 7 That is, in this embodiment, rotating the knob 202 along the S direction can change the width of the opening 2012 in the second direction, but will not close the opening 2012, thereby reserving a certain amount of deformation. This can avoid the situation where the two fixed abutting portions 2014 abut against each other before the knob 202 is fully rotated, resulting in an inability to effectively clamp the nozzle assembly 3. This improves the reliability of the nozzle module and enables the clamping ring 201 to more effectively clamp the nozzle assembly 3.

[0069] In some embodiments, see Figure 7The knob 202 has two rotating abutting portions 2022 spaced apart in the second direction, and the relative positions of the two rotating abutting portions 2022 are fixed. The two fixed abutting portions 2014 are located between the two rotating abutting portions 2022. When the knob 202 is rotated in the S direction, the two rotating abutting portions 2022 can simultaneously press the corresponding fixed abutting portions 2014, causing the two fixed abutting portions 2014 to move toward each other in the second direction, thereby reducing the width of the opening 2012 in the second direction, thereby allowing the clamping ring 201 to clamp the nozzle assembly 3. When the knob 202 is rotated in the N direction, the two rotating abutting portions 2022 can simultaneously release the corresponding fixed abutting portions 2014, causing the two fixed abutting portions 2014 to move away from each other in the second direction, thereby increasing the width of the opening 2012 in the second direction, thereby allowing the clamping ring 201 to release the nozzle assembly 3. This facilitates operation and effectively achieves quick installation and removal.

[0070] As an implementation, please refer to Figure 8 and Figure 9 The rotating abutting portion 2022 has a first wedge-shaped surface 20221, and the fixed abutting portion 2014 has a second wedge-shaped surface 20141 corresponding to the first wedge-shaped surface 20221. The first wedge-shaped surface 20221 and the second wedge-shaped surface 20141 abut each other. Specifically, the first wedge-shaped surface 20221 is disposed in the second direction facing the corresponding fixed abutting portion 2014, and the first wedge-shaped surface 20221 is disposed around the first axis 7 and extends obliquely in the second direction. The second wedge-shaped surface 20141 is disposed in the second direction facing the corresponding rotating abutting portion 2022, and the second wedge-shaped surface 20141 is disposed around the first axis 7 and extends obliquely in the second direction.

[0071] As an example, when the knob 202 is in the lowered state, point a of the first wedge surface 20221 abuts against point b of the second wedge surface 20141. Figure 11As shown, at this time, the width of the opening 2012 in the second direction is at a maximum value or close to a maximum value. During the process of the knob 202 rotating along the S direction, point a of the first wedge surface 20221 gradually moves away from point b, and the height difference between point a and point b in the second direction becomes larger and larger, and the width W of the combination of the rotating abutting portion 2022 and the fixed abutting portion 2014 in the second direction becomes larger and larger. Since the relative positions of the two rotating abutting portions 2022 of the knob 202 are fixed, that is, the distance between the rotating abutting portions 2022 in the second direction is fixed. Therefore, during the process of the knob 202 rotating along the S direction, the width of the opening 2012 in the second direction becomes smaller and smaller. When the knob 202 is in the up state, the height difference between point a and point b in the second direction reaches a maximum value or close to a maximum value, please refer to Figure 12 As shown, in other words, at this time, the width of the opening 2012 in the second direction is at or close to the minimum value. Therefore, when the knob 202 rotates in the S direction, the first wedge surface 20221 can squeeze the corresponding second wedge surface 20141, causing the two fixed abutting portions 2014 to move toward each other in the second direction, thereby reducing the width of the opening 2012 in the second direction, thereby allowing the clamping ring 201 to clamp the nozzle assembly 3. When the knob 202 rotates in the N direction, the first wedge surface 20221 can release the corresponding second wedge surface 20141, allowing the two fixed abutting portions 2014 to move away from each other in the second direction, thereby increasing the width of the opening 2012 in the second direction, thereby allowing the clamping ring 201 to release the nozzle assembly 3.

[0072] As an example, please refer to Figures 12 to 14 The rotation supporting portion 2022 may have a plurality of first wedge surfaces 20221, all of which are arranged around the first axis 7, and two adjacent first wedge surfaces 20221 are connected by a first transition surface 20222. Figure 15 The fixed abutting portion 2014 may have a plurality of second wedge surfaces 20141, all of which are arranged around the first axis 7, with two adjacent second wedge surfaces 20141 connected by a second transition surface 20142. The number of first wedge surfaces 20221 and second wedge surfaces 20141 is the same, and the first wedge surfaces 20221 and second wedge surfaces 20141 are arranged in a one-to-one correspondence.

[0073] In this example, the rotating abutting portion 2022 has a plurality of first wedge-shaped surfaces 20221, and the fixed abutting portion 2014 has a corresponding number of second wedge-shaped surfaces 20141. The first wedge-shaped surfaces 20221 abut the corresponding second wedge-shaped surfaces 20141. When the knob 202 is rotated, the clamping ring 201 is subjected to a more uniform and stable force, and excessive rotation of the knob 202 can be avoided, which could damage the nozzle assembly 3. Furthermore, the provision of the plurality of first wedge-shaped surfaces 20221 and second wedge-shaped surfaces 20141 effectively reduces the rotation angle of the knob 202, further improving installation and removal efficiency and making the operation more convenient.

[0074] The working principle of this example is as follows: when the knob 202 rotates in the S direction to Figure 7 In the pulled-up state shown in FIG, the first wedge surface 20221 and the second wedge surface 20141 are in a matching state as shown in FIG. Figure 16 As shown, the height difference H between the first wedge surface 20221 and the second wedge surface 20141 in the second direction is at a maximum value or close to a maximum value. Since the relative positions of the two rotating abutting portions 2022 of the knob 202 are fixed, that is, the distance between the rotating abutting portions 2022 in the second direction is fixed, the width of the opening 2012 in the second direction is at a minimum value or close to a minimum value. At this time, the nozzle assembly 3 is clamped in the clamping hole 2011 of the locking assembly 2. When the knob 202 is rotated about the N direction to the lowered state, the first wedge surface 20221 and the second wedge surface 20141 are in a mating state as shown in FIG. Figure 17 As shown, the height difference between the first wedge surface 20221 and the second wedge surface 20141 in the second direction is at a minimum or close to a minimum. For example, the height difference can be zero. Since the distance between the two rotating abutting portions 2022 of the knob 202 in the second direction is fixed, the width of the opening 2012 in the second direction is at a maximum or close to a maximum. At this time, the locking assembly 2 releases the nozzle assembly 3, and the user can remove the nozzle assembly 3 from the spray head structure.

[0075] For some examples, see Figures 12 to 14 The rotating supporting portion 2022 may have three first wedge-shaped surfaces 20221. Figure 15 Accordingly, the fixed supporting portion 2014 can have three second wedge-shaped surfaces 20141, which not only has a simple structure and is easy to produce, but also can make the force on the clamping ring 201 more uniform and stable, and effectively reduce the rotation angle of the knob 202.

[0076] It should be noted that, in other embodiments, the rotating supporting portion 2022 may also include one or other number of first wedge surfaces 20221, and the fixed supporting portion 2014 may also include one or other number of second wedge surfaces 20141, which can be set according to actual conditions and will not be elaborated here.

[0077] For some examples, see Figure 13 The first transition surface 20222 can be a plane parallel to the first axis 7. The second transition surface 20142 can be a plane parallel to the first axis 7. When the knob 202 rotates about the N direction until the first transition surface 20222 abuts the corresponding second transition surface 20142, the knob 202 can no longer rotate about the N direction, effectively notifying the user that the nozzle assembly 3 has been released and that the nozzle assembly 3 can be removed from the locking assembly 2 and the heat dissipation assembly 1, making it more convenient and improving the user experience.

[0078] In some embodiments, see Figure 8 、 Figure 9 and Figure 15 The fixed abutting portion 2014 has a receiving hole 20143 centered about the first axis 7 . The opening of the receiving hole 20143 faces the rotating abutting portion 2022 . A second wedge-shaped surface 20141 is formed on the bottom surface of the receiving hole 20143 . The rotating abutting portion 2022 is rotatably connected to the receiving hole 20143 . When the knob 202 rotates relative to the locking assembly 2 , the rotating abutting portion 2022 rotates within the receiving hole 20143 .

[0079] In this embodiment, the rotating abutting portion 2022 is accommodated in the fixed abutting portion 2014 , so that the rotating abutting portion 2022 and the fixed abutting portion 2014 can cooperate more stably and effectively.

[0080] In some embodiments, see Figure 2 、 Figure 7 and Figure 8 The knob 202 further includes two first connecting arms 2023 and a second connecting arm 2024. The two first connecting arms 2023 are spaced apart and symmetrically arranged in the second direction, the second connecting arm 2024 is connected to one end of the two connecting arms, and the other ends of the two first connecting arms 2023 are configured as rotational abutting portions 2022. In other words, the other ends of the two first connecting arms 2023 are respectively fixed with rotational abutting portions 2022.

[0081] In this embodiment, the two first connecting arms 2023 are connected as one piece via the second connecting arm 2024, thereby effectively fixing the relative positions of the two rotating abutting portions 2022. During use, the second connecting arm 2024 can be used as a handle. Rotating the second connecting arm 2024 simultaneously rotates the two rotating abutting portions 2022, causing the two rotating abutting portions 2022 to simultaneously squeeze or release the corresponding fixed abutting portions 2014, thereby clamping or releasing the nozzle assembly 3. This is convenient to use and allows for quick installation and removal with one twist, which not only facilitates operation but also improves loading and unloading efficiency. In addition, the two rotating abutting portions 2022 are connected as one piece via the first connecting arm 2023 and the second connecting arm 2024, which can solve the problem of deflection of the knob 202 after long-term use, ensuring that the performance of the nozzle module does not change with long-term use.

[0082] In some embodiments, see Figure 3 and Figure 8 The locking assembly 2 further includes two connecting members 203, which are symmetrically arranged in the second direction. The connecting member 203 includes a rod portion 2031 and a first flange portion 2032. The rod portion 2031 is oriented with the first axis 7 as its axis. The first flange portion 2032 is formed at one end of the rod portion 2031 in the second direction. The other end of the rod portion 2031 in the second direction is inserted through the corresponding rotating abutting portion 2022. Furthermore, the other end of the rod portion 2031 in the second direction is fixed to the corresponding fixed abutting portion 2014. To prevent the rotating abutting portion 2022 from detaching from the connecting member 203, the rotating abutting portion 2022 abuts against the first flange portion 2032 on the side facing away from the fixed abutting portion 2014 in the second direction.

[0083] In this embodiment, the knob 202 is rotatably connected to the clamping ring 201 via the connecting member 203 , wherein the knob 202 can rotate relative to the connecting member 203 , and the connecting member 203 is fixed to the clamping ring 201 , which is not only simple in structure but also easy to install.

[0084] As an embodiment, the connecting member 203 can be detachably fixed to the clamping ring 201, thereby facilitating the disassembly of the locking assembly 2 and allowing damaged parts to be replaced individually.

[0085] As an example, the connecting member 203 can be threadedly connected to the clamping ring 201. Specifically, the outer periphery of the end of the rod 2031 connected to the clamping ring 201 can be provided with an external thread, and the fixed abutting portion 2014 can be provided with a threaded hole that matches the external thread. The rod 2031 is threadedly connected to the threaded hole, which facilitates assembly and disassembly and is more convenient to use.

[0086] It should be noted that the knob 202 and / or the connector 203 may also be connected to the clamping ring 201 in other ways, which can be configured according to actual conditions and will not be described in detail here.

[0087] In some embodiments, see Figure 8 and Figure 9 , the rotating abutting portion 2022 is a split structure. Specifically, the rotating abutting portion 2022 may include a first connecting portion 20223 and a first matching portion 20224, and the first connecting portion 20223 and the first matching portion 20224 are detachably fixed. The first matching portion 20224 and the first connecting portion 20223 are both rotatably provided on the connecting member 203, and the first matching portion 20224 rotates synchronously with the first connecting portion 20223. Among them, the first connecting portion 20223 is fixed to the corresponding first connecting arm 2023, and the first wedge surface 20221 is formed on the first matching portion 20224. When the first wedge surface 20221 is worn due to long-term use, the first matching portion 20224 can be replaced alone, which reduces the cost of use and extends the service life of the overall structure.

[0088] As an example, one of the first connecting part 20223 and the first matching part 20224 is provided with a first limiting protrusion, and the other of the first connecting part 20223 and the first matching part 20224 is provided with a first limiting recess. The first limiting protrusion and the first limiting recess are plugged into each other, thereby effectively transmitting torque, so that the first matching part 20224 can rotate synchronously with the first connecting part 20223, thereby improving the reliability of the overall structure.

[0089] For some examples, see Figure 8 and Figure 9The first matching portion 20224 can be formed with at least two first limiting protrusions 202241 evenly distributed around the first axis 7 at one end facing away from the fixed supporting portion 2014 in the second direction. Correspondingly, the first connecting portion 20223 is provided with a first limiting recess 202231 which is arranged one-to-one corresponding to the first limiting protrusion 202241. The first limiting protrusion 202241 is inserted into the corresponding first limiting recess 202231. The plug-in matching first limiting protrusion 202241 and the first limiting recess 202231 can make the first matching portion 20224 rotate synchronously with the first connecting portion 20223 and the second connecting arm 2024, ensuring that the first matching portion 20224 will not rotate around the first axis 7 relative to the first connecting portion 20223. Moreover, the first matching portion 20224 and the first connecting portion 20223 are abutted between the fixed supporting portion 2014 and the first flange portion 2032 in the second direction, which can ensure the effective connection between the first limiting protrusion 202241 and the first limiting recess 202231 and prevent the first limiting protrusion 202241 from being separated from the first limiting recess 202231.

[0090] It should be noted that, in other embodiments, the first connecting portion 20223 and the first matching portion 20224 can also be detachably fixedly connected in other ways. Alternatively, the rotating abutting portion 2022 can also be an integrated structure. This can be configured according to actual conditions and will not be described in detail here.

[0091] In some embodiments, see Figures 7 to 9 The clamping ring 201 further includes a ring portion 2015 , and the ring portion 2015 has a clamping hole 2011 and an opening 2012 .

[0092] In some embodiments, see Figure 8 and Figure 9 , the fixed abutting portion 2014 can be a split structure. Specifically, the fixed abutting portion 2014 can include a second connecting portion 20144 and a second matching portion 20145, and the second connecting portion 20144 and the second matching portion 20145 are detachably fixed. The second connecting portion 20144 and the second matching portion 20145 are both provided through the connecting member 203, and the second connecting portion 20144 and the second matching portion 20145 are both relatively fixed to the connecting member 203. Among them, the second connecting portion 20144 is fixed to the ring portion 2015, and the second wedge surface 20141 is formed on the second matching portion 20145. When the second wedge surface 20141 is worn due to long-term use, the second matching portion 20145 can be replaced separately, which reduces the cost of use and extends the service life of the overall structure.

[0093] As an example, one of the second connecting portion 20144 and the second matching portion 20145 is provided with a second limiting protrusion, and the other of the second connecting portion 20144 and the second matching portion 20145 is provided with a second limiting recess, and the second limiting protrusion and the second limiting recess are plugged into each other, thereby effectively fixing the second matching portion 20145, preventing the second matching portion 20145 from rotating with the first matching portion 20224, and improving the reliability of the overall structure.

[0094] For some examples, see Figure 8 and Figure 9 A second limiting protrusion 201451 perpendicular to the first axis 7 may be formed on one end of the second matching portion 20145, which is away from the movable supporting portion in the second direction. Correspondingly, a second limiting recess 201441 is formed on the second connecting portion 20144 to plug and mate with the second limiting protrusion 201451. The plug-fitting second limiting protrusion 201451 and the second limiting recess 201441 can keep the second matching portion 20145 and the second connecting portion 20144 fixed, ensuring that the second matching portion 20145 does not rotate relative to the second connecting portion 20144 about the first axis 7. Moreover, the second connecting portion 20144 is provided with a threaded hole threadedly connected to the rod portion 2031, and the second matching portion 20145 is abutted between the movable abutting portion and the second connecting portion 20144, which can ensure the effective connection between the second limiting protrusion 201451 and the second limiting recess 201441, and prevent the second limiting protrusion 201451 from being separated from the second limiting recess 201441.

[0095] It should be noted that, in other embodiments, the second connecting portion 20144 and the second matching portion 20145 can also be detachably fixedly connected in other ways. Alternatively, the fixed abutting portion 2014 can also be an integrated structure. This can be configured according to actual conditions and will not be described in detail here.

[0096] In some embodiments, see Figure 3 as well as Figures 7 to 9 The clamping ring 201 further includes two fixing portions 2016, which are symmetrically arranged about the ring portion 2015. One end of each fixing portion 2016 is formed on the ring portion 2015, and the other end of each fixing portion 2016 extends along the circumference of the ring portion 2015. There is a gap between the fixing portion 2016 and the ring portion 2015, and the other end of the fixing portion 2016 is fixed to the heat dissipation assembly 1.

[0097] In this embodiment, a gap is provided between the fixing portion 2016 and the ring portion 2015, effectively reducing the transfer of heat from the nozzle assembly 3 from the locking assembly 2 to the heat dissipation assembly 1, thereby enhancing the thermal insulation effect. Furthermore, the fixing portion 2016 extends circumferentially along the ring portion 2015, effectively optimizing the stress applied to the fixing portion 2016 and preventing breakage, thereby improving the product quality of the nozzle module.

[0098] As an embodiment, the fixing portion 2016 can be detachably fixed to the heat dissipation assembly 1, thereby facilitating individual replacement of parts and making installation and disassembly more convenient.

[0099] As an example, the heat dissipation component 1 is used to dissipate heat from the nozzle component 3 so that the consumables in the throat component 301 are not melted, thereby achieving smooth feeding. Figure 5 、 Figure 6 and Figure 18 The heat dissipation assembly 1 includes a heat dissipation element 101, two heat insulation elements 102, and two fixing elements 103. The two heat insulation elements 102 are symmetrically arranged on either side of the heat dissipation element 101 in the second direction. The fixing elements 103 are arranged in a one-to-one correspondence with the heat insulation elements 102. The fixing elements 103 are sequentially inserted through the corresponding fixing portions 2016 and the heat insulation elements 102 and fixed to the heat dissipation element 101. The nozzle assembly 3 is inserted through the heat dissipation element 101.

[0100] In this example, a heat insulating member 102 is provided between the fixing portion 2016 and the heat sink 101 , which can reduce the heat of the nozzle assembly 3 being transferred from the fixing portion 2016 to the heat sink 101 , thereby improving the heat insulating effect.

[0101] In some examples, the fixing member 103 may be a threaded connection member, for example, a screw. The fixing member 103 sequentially passes through the corresponding fixing portion 2016 and the heat insulating member 102 and is threadedly connected to the heat dissipating member 101, which not only effectively fixes the locking assembly 2 to the heat dissipating assembly 1 but also facilitates assembly and disassembly.

[0102] In some examples, the heat insulating member 102 may be made of nylon, thereby effectively blocking the spread of heat. It should be noted that in other embodiments, the heat insulating member 102 may be made of other materials and may be configured according to actual conditions, which will not be described in detail herein.

[0103] In some examples, the heat sink 101 may include a heat sink.

[0104] In some embodiments, see Figure 4 、 Figure 6 、 Figure 19 and Figure 20The nozzle assembly 3 includes a throat fitting 301, a heat-conducting pipe fitting 302, a nozzle fitting 303, and a locking fitting 304. The throat fitting 301, heat-conducting pipe fitting 302, and nozzle fitting 303 are sequentially fixed in a first direction, wherein the throat fitting 301 is inserted through the heat dissipation assembly 1. The locking fitting 304 is fixed to the outer periphery of the heat-conducting pipe fitting 302 and inserted through the clamping hole 2011. In other words, the locking assembly 2 is in direct contact with the locking fitting 304. During installation and removal, the locking assembly 2 directly tightens or loosens the locking fitting 304, thereby effectively protecting the heat-conducting pipe fitting 302.

[0105] As an embodiment, the locking tube 304 is detachably fixed to the heat-conducting tube 302. When the locking tube 304 is damaged due to long-term use, the locking tube 304 can be replaced separately, thereby extending the service life of the overall structure and reducing the cost of use.

[0106] As an example, the locking pipe 304 can be threadedly connected to the heat-conducting pipe 302, which not only has a simple structure but also is easy to assemble and disassemble.

[0107] For some examples, see Figure 4 、 Figure 6 and Figure 20 The locking tube 304 is provided with a threaded hole that passes through the locking tube 304 along the first direction. Correspondingly, the outer periphery of the connection between the heat conducting tube 302 and the locking tube 304 is provided with an external thread that matches the threaded hole.

[0108] It should be noted that, in other embodiments, the locking tube 304 and the heat-conducting tube 302 may be connected and fixed in other ways, which can be set according to actual conditions and will not be described in detail here.

[0109] As an embodiment, the heat-conducting pipe 302 and the throat pipe 301 may be interference-fitted, thereby improving the structural stability of the nozzle assembly 3 .

[0110] As an embodiment, the heat-conducting pipe 302 and the nozzle component 303 may be interference-fitted, thereby improving the structural stability of the nozzle assembly 3 .

[0111] In some examples, the heat conducting pipe 302 can be made of copper, which has good heat conduction effect. It should be noted that in other embodiments, the heat conducting pipe 302 can be made of other materials and can be set according to actual conditions, which will not be described in detail here.

[0112] As an implementation, please refer to Figure 4 、 Figure 6 、 Figure 19 and Figure 20The nozzle assembly 3 also includes a heat dissipation pipe 305, which is detachably fixed to the outer periphery of the throat pipe 301. The heat dissipation pipe 305 is arranged between the heat dissipation element 101 and the throat pipe 301. It can not only effectively protect the throat pipe 301 and solve the problem of damage to the throat pipe 301 after long-term use, but also the heat dissipation pipe 305 is in close contact with the heat dissipation element 101 and the throat pipe 301 respectively, which can ensure that the heat of the throat pipe 301 can be quickly dissipated through the heat dissipation element 101.

[0113] As an example, please refer to Figure 4 、 Figure 6 、 Figure 19 and Figure 20 The heat dissipation pipe 305 is sleeved on the outer periphery of the throat pipe 301 along the first direction, and the heat dissipation pipe 305 and the throat pipe 301 are interference fit, which not only makes the connection more secure, but also allows the heat of the throat pipe 301 to be transferred to the heat dissipation element 101 more quickly and effectively through the heat dissipation pipe 305.

[0114] In some examples, the heat dissipation pipe 305 can be made of copper, which has a good heat dissipation effect. It should be noted that in other embodiments, the heat dissipation pipe 305 can be made of other materials and can be set according to actual conditions, which will not be described in detail here.

[0115] In some embodiments, see Figure 1 、 Figure 2 ,as well as Figures 4 to 6 The nozzle module further includes a heating component 4, which is sleeved on the heat-conducting pipe 302. The heating component 4 is used to heat the consumables passing through the heat-conducting pipe 302, so that the nozzle component 303 can extrude the molten consumables.

[0116] As an embodiment, the heating component 4 is detachably fixed to the nozzle component 3. When the nozzle component 3 is quickly disassembled, the heating component 4 and the nozzle component 3 are disassembled as a whole, that is, the heating component 4 is separated from the nozzle module together with the nozzle component 3.

[0117] As an example, please refer to Figure 4 、 Figure 6 、 Figure 19 and Figure 20 The heat-conducting pipe 302 may include a pipe portion 3021 and a second flange portion 3022. The second flange portion 3022 is circumferentially protruding from the pipe portion 3021. The second flange portion 3022 is disposed at one end of the pipe portion 3021 that is close to the nozzle member 303. The locking pipe 304 is threadedly connected to the end of the pipe portion 3021 that is away from the second flange portion 3022, thereby securing the heating assembly 4 between the second flange portion 3022 and the locking pipe 304.

[0118] In some embodiments, see Figure 4and Figure 6 The heating assembly 4 includes a heating element 401. The heating element 401 is constructed as a cylindrical structure sleeved outside the heat-conducting pipe 302. The heating element 401 is used to heat the heat-conducting pipe 302, thereby effectively heating the consumables to a molten state.

[0119] As an example, please refer to Figure 4 and Figure 6 The heating element 401 can be an annular ceramic ring. The annular ceramic ring is used to heat the heat-conducting pipe 302. On the basis of achieving quick disassembly, it can also make the heat transfer efficiency more efficient and make the heat-conducting pipe 302 heated more evenly, solving the problem of uneven heating of the nozzle assembly 3.

[0120] As an implementation, please refer to Figure 4 and Figure 6 The heating component 4 may further include a protective shell 402, which at least covers the outside of the heating element 401 to prevent heat leakage, thereby not only ensuring the heating effect but also being safer.

[0121] As an embodiment, in order to better control the heating effect, the heating component 4 may further include a temperature sensor 403, please refer to Figure 4 .

[0122] As an example, please refer to Figure 20 A mounting hole 30221 may be provided on the second flange portion 3022, and the temperature sensor 403 may be partially inserted into the mounting hole 30221, which not only facilitates installation but also makes the spatial layout more reasonable and is more conducive to miniaturization of the nozzle module.

[0123] The 3D printer according to the embodiment of the present application includes the nozzle module provided by any of the above embodiments.

[0124] In the embodiment of the present application, the width of the opening 2012 in the second direction can be changed by rotating the knob 202, thereby changing the aperture of the clamping hole 2011, so that the clamping ring 201 can clamp or release the nozzle assembly 3 inserted into the clamping hole 2011. This not only enables quick installation and quick removal with one twist, but also simplifies the installation and removal processes and does not require the use of other tools, thereby improving installation and removal efficiency. In addition, the locking assembly 2 can firmly fix the nozzle assembly 3 to the heat dissipation assembly 1, solving the problem of the nozzle assembly 3 rotating and / or moving up and down during movement, and achieving reliable fixation of the nozzle assembly 3.

[0125] In some embodiments, the 3D printer further includes a base (not shown), and the heat sink 101 of the heat dissipation assembly 1 is connected to the base via a pressure collection component 5 , which can collect pressure signals provided by the heat sink 101 .

[0126] As an example, please refer to Figure 1 The pressure collection member 5 may be a strain gauge. The heat sink 101 and the pressure collection member 5 are fixedly connected by screws or other threaded connectors, and the pressure collection member 5 is fixed to the base by screws or other threaded connectors.

[0127] In some embodiments, see Figure 5 The 3D printer further includes a limiter 6. The heat dissipation assembly 1 is further connected to the base via the limiter 6. The limiter 6 and the pressure collection member 5 are respectively arranged at both ends of the heat dissipation assembly 1 in the first direction, thereby effectively preventing the nozzle module from shaking during high-speed movement.

[0128] As an optional embodiment, the limit member 6 can be threadedly connected to the base, and the limit member 6 is inserted into the heat sink 101 of the heat sink assembly 1 along the first direction, which is not only convenient for installation, but also can effectively limit the heat sink assembly 1, making the heat sink assembly 1 more secure and stable to install.

[0129] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0130] The above embodiments merely represent preferred embodiments of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. Nozzle module, characterized in that, include: heat dissipation components; a locking assembly comprising a clamping ring fixed to the heat dissipation assembly and a knob connected to the clamping ring, the clamping ring having a clamping hole and an opening extending therethrough in a first direction, the opening being connected to the clamping hole, the clamping ring further having fixed abutting portions disposed on both sides of the opening in a second direction, the second direction being orthogonal to the first direction; and a nozzle assembly, sequentially passing through the clamping hole and the heat dissipation assembly along the first direction; The knob can rotate relative to the clamping ring around a first axis parallel to the second direction to squeeze or release the two fixed abutting portions along the second direction, so that the clamping ring clamps or releases the nozzle assembly.

2. The nozzle module according to claim 1, wherein: The clamping ring is elastic. When the knob releases the two fixed abutting portions, the clamping ring can release the nozzle assembly under the action of its own elasticity.

3. The nozzle module according to claim 1, wherein: The knob has two rotation abutting portions spaced apart in the second direction, and the relative positions of the two rotation abutting portions are fixed; The two fixed abutting portions are located between the two rotating abutting portions; The knob can rotate around the first axis so that the rotating abutment portion squeezes or releases the corresponding fixed abutment portion.

4. The nozzle module according to claim 3, wherein: The rotating abutting portion has a first wedge-shaped surface disposed facing the fixed abutting portion in the second direction and surrounding the first axis, and the fixed abutting portion has a second wedge-shaped surface disposed facing the rotating abutting portion in the second direction and surrounding the first axis; The first wedge surface and the second wedge surface extend obliquely in the second direction respectively, and the second wedge surface abuts against the first wedge surface. The knob can rotate around the first axis so that the first wedge surface squeezes or releases the corresponding second wedge surface.

5. The nozzle module according to claim 4, wherein: The rotation supporting portion has a plurality of first wedge-shaped surfaces arranged around the first axis, and two adjacent first wedge-shaped surfaces are connected by a first transition surface; The fixed supporting portion has a plurality of second wedge-shaped surfaces arranged around the first axis, and two adjacent second wedge-shaped surfaces are connected by a second transition surface.

6. The nozzle module according to claim 4, wherein: The fixed abutting portion has a receiving hole arranged facing the rotating abutting portion and having the first axis as an axis. The second wedge surface is formed on the bottom surface of the receiving hole. The rotating abutting portion is rotatably connected to the receiving hole.

7. The nozzle module according to claim 4, wherein: The knob also includes two first connecting arms spaced apart and symmetrically arranged in the second direction and a second connecting arm connected to one end of the two connecting arms, and the other ends of the two first connecting arms are respectively fixed with the rotation supporting portion.

8. The nozzle module according to claim 7, wherein: The locking assembly further comprises two connecting members symmetrically arranged in the second direction; The connecting member includes a rod portion with the first axis as an axis and a first flange portion formed at one end of the rod portion, and the other end of the rod portion is passed through the corresponding rotating abutment portion and fixed to the corresponding fixed abutment portion; The rotating abutting portion abuts against the first flange portion at one side thereof in the second direction away from the fixed abutting portion.

9. The nozzle module according to claim 7, wherein: The rotating abutting portion is a split structure, comprising a detachably fixed first connecting portion and a first matching portion, wherein the first connecting portion is fixed to the corresponding first connecting arm, and the first wedge surface is formed on the first matching portion; Alternatively, the rotation supporting portion is an integrated structure.

10. The nozzle module according to claim 9, wherein: One of the first connecting portion and the first matching portion is provided with a first limiting protrusion, and the other is provided with a first limiting recess, and the first limiting protrusion and the first limiting recess are plug-fitted.

11. The nozzle module according to claim 4, wherein: The clamping ring further comprises a ring portion, wherein the ring portion has the clamping hole and the opening; The fixed abutting portion is a split structure, and includes a second connecting portion and a second matching portion that are detachably fixed, the second connecting portion is fixed to the ring portion, and the second wedge surface is formed on the second matching portion; or, the fixed abutting portion is an integrated structure.

12. The nozzle module according to claim 11, wherein: One of the second connecting portion and the second matching portion is provided with a second limiting protrusion, and the other is provided with a second limiting recess, and the second limiting protrusion and the second limiting recess are plug-fitted.

13. The nozzle module according to claim 11, wherein: The clamping ring also includes two fixing parts symmetrically arranged about the ring part, one end of the fixing part is formed on the ring part, the other end of the fixing part extends along the circumference of the ring part and has a gap with the ring part, and the other end of the fixing part is detachably fixed to the heat dissipation assembly.

14. The nozzle module according to claim 13, wherein: The heat dissipation assembly includes a heat dissipation component, two heat insulation components and two fixing components; The two heat insulating members are symmetrically arranged on both sides of the heat dissipating member in the second direction, and the fixing members are sequentially passed through the corresponding fixing portions and the heat insulating members and fixed to the heat dissipating member; The nozzle assembly is disposed through the heat sink.

15. The nozzle module according to claim 1, wherein: The nozzle assembly includes a throat pipe, a heat-conducting pipe and a nozzle piece connected in sequence in the first direction, the throat pipe is passed through the heat dissipation assembly, and the nozzle assembly also includes a locking pipe fixed to the outer periphery of the heat-conducting pipe, and the locking pipe is passed through the clamping hole.

16. The nozzle module according to claim 15, wherein: The nozzle module further includes a heating component, and the heating component is sleeved outside the heat-conducting pipe.

17. The nozzle module according to claim 16, wherein: The heat-conducting pipe comprises a pipe portion and a second flange portion circumferentially protruding from the pipe portion, wherein the second flange portion is provided at one end of the pipe portion close to the nozzle member; The locking pipe is threadedly connected to an end of the pipe away from the second flange; The heating component is arranged between the second flange portion and the locking tube.

18. A 3D printer, characterized in that: Comprising the nozzle module according to any one of claims 1 to 17.

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