Nozzle module and 3D printer

Abstract

The present application relates to a nozzle module and a 3D printer. The nozzle module comprises: a cooling arrangement; a locking arrangement comprising a clamping ring attached to the cooling arrangement and a rotating element connected to the clamping ring, the clamping ring having a clamping bore extending through in a first direction and an opening communicating with the clamping bore; and a nozzle arrangement extending sequentially through the clamping bore and the cooling arrangement in a first direction; the rotating element being rotatable relative to the clamping ring, and the width of the opening being selectively decreased or increased as the rotating element is rotated relative to the clamping ring, such that the clamping ring clamps or releases the nozzle arrangement. The present application not only enables rapid assembly and disassembly but also facilitates assembly and disassembly, thereby increasing assembly and disassembly efficiency.

Description

TECHNICAL AREA

[0001] The present application relates to the field of 3D printing, in particular a nozzle module and a 3D printer. STATE OF THE ART

[0002] Fused Deposition Modeling (FDM) is a process in which consumable material is heated and melted to form a three-dimensional object by printing and stacking it layer by layer.

[0003] If a 3D printer nozzle becomes clogged, it must be removed from the printer. After cleaning, it is reinstalled. In cases of severe blockage, the nozzle may even need to be replaced. Therefore, easy nozzle removal and reinstallation are crucial.

[0004] In related technologies, nozzles often lack a quick-disassembly function. Even when quick disassembly is possible for some nozzles, the disassembly process is cumbersome and requires additional tools, significantly impacting assembly and disassembly efficiency. CONTENT OF THE PRESENT INVENTION

[0005] Exemplary embodiments of the present application provide a nozzle module and a 3D printer which not only enable quick assembly and disassembly, but also facilitate assembly and disassembly, thereby increasing assembly and disassembly efficiency.

[0006] According to a first aspect, an embodiment of the present application provides a nozzle module comprising the following: a cooling arrangement; a locking arrangement comprising a clamping ring attached to the cooling arrangement and a rotating element connected to the clamping ring, wherein the clamping ring has a clamping bore extending through in a first direction and an opening communicating with the clamping bore; and a nozzle arrangement which passes through the clamping bore and the cooling arrangement in the first direction in succession; wherein the rotating element is rotatable relative to the clamping ring, and wherein, when the rotating element is rotated relative to the clamping ring, the width of the opening is selectively reduced or increased, so that the clamping ring clamps or releases the nozzle assembly.

[0007] In some embodiments, the clamping ring is designed to be elastic, whereby, when the rotating element is rotated relative to the clamping ring, so that the width of the opening increases, the nozzle arrangement can release its connection with the clamping ring under the influence of its own weight.

[0008] In some embodiments, the clamping ring is provided to have two fixed contact sections on two sides of the opening in a second direction perpendicular to the first direction, wherein the second direction is the width direction of the opening; wherein the rotating element comprises a rotatable system section associated with the stationary system sections, wherein the rotatable system section has a first fitting surface and the individual stationary system section has a second fitting surface adjacent to the corresponding first fitting surface in the second direction; wherein the rotatable system section is rotatable relative to the single fixed system section, whereby the first mating surface presses or releases the corresponding second mating surface in the second direction, thereby clamping or releasing the nozzle assembly with the clamping ring.

[0009] In some embodiments, the first mating surface is designed as a cam surface, or the first mating surface and the second mating surface are designed as interacting wedge surfaces.

[0010] In some embodiments, it is provided that the two stationary plant sections are designed as the first stationary plant section and the second stationary plant section, respectively; wherein the rotating element comprises a rotatable attachment section which is arranged on a side of the first stationary attachment section facing away from the second stationary attachment section, wherein the end surface of the first stationary attachment section facing away from the second stationary attachment section is designed as the second mating surface.

[0011] In some embodiments, the first mating surface is designed as a cam surface, the central axis of which runs eccentrically to a first axis that runs perpendicular to the second direction, wherein the first axis is arranged in a fixed position relative to the second fixed contact section; wherein the rotary element is rotatable about the first axis, so that the first mating surface pushes or releases the second mating surface in the second direction.

[0012] In some embodiments, the locking arrangement further comprises a first connecting element, wherein the first connecting element comprises a first rod section extending in the second direction and a first flange section formed at one end of the first rod section, wherein the other end of the first rod section passes successively through the second fixed mounting section and the first fixed mounting section and is connected to the rotatable mounting section; wherein the second fixed section of the system, with its end facing away from the first fixed section of the system in the second direction, rests against the first flange section, and wherein the rotatable section of the system is rotatable about the first axis relative to the first rod section.

[0013] In some embodiments, the rotatable mounting section is provided with a first mounting hole whose axis corresponds to the first axis, wherein a deflection recess is further formed on the rotatable mounting section, which is arranged around the first axis and communicates with the first mounting hole; wherein the locking arrangement further comprises a second connecting element which is inserted into the first mounting hole; wherein the first connecting element passes through the escape recess and is fixed to the second connecting element.

[0014] In some embodiments, the second connecting element is provided in its circumferential direction with a second mounting hole extending radially to the second connecting element, to which the first connecting element is connected via threads, wherein the second connecting element is further provided with a third mounting hole, the axis of which corresponds to the first axis and which communicates with the second mounting hole; wherein the locking arrangement further comprises a fastening element connected to the third mounting hole via threads, which serves to abut against the first connecting element connected to the second mounting hole.

[0015] In some embodiments, the rotating element comprises two rotatable support sections spaced apart in the second direction, wherein the two stationary support sections are located between the two rotatable support sections, and wherein at least one of the two rotatable support sections can push or release the corresponding stationary support section in the second direction, causing the two stationary support sections to move towards or away from each other in the second direction.

[0016] In some embodiments, both the first mating surface and the second mating surface are designed as wedge surfaces arranged around a second axis parallel to the second direction and inclined in the second direction; wherein the rotating element is rotatable about the second axis, whereby the first mating surface pushes or releases the second mating surface in the second direction.

[0017] In some embodiments, the individual rotatable support section has several first mating surfaces arranged around the second axis, wherein each pair of adjacent first mating surfaces is connected to each other by a first transition surface; wherein the individual stationary support section has several second mating surfaces arranged around the second axis, wherein each pair of adjacent second mating surfaces is connected to each other by a second transition surface.

[0018] In some embodiments, it is provided that the individual stationary system section has a receiving hole facing the respective rotatable system section, the axis of which corresponds to the second axis, wherein the individual second fitting surface is formed on the bottom surface of the respective receiving hole, and wherein the individual rotatable system section is rotatably connected to the respective receiving hole.

[0019] In some embodiments, the rotating element further comprises 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 first connecting arms, with the respective rotatable support section attached to the other ends of the two first connecting arms.

[0020] In some embodiments, the locking arrangement further comprises two third connecting elements arranged symmetrically in the second direction; wherein the individual third connecting element comprises a second rod section having the second axis as its axis and a second flange section formed at one end of the second rod section, wherein the other end of the second rod section passes through the corresponding rotatable mounting section and is fixed to the corresponding stationary mounting section; and wherein the individual rotatable plant section rests against the respective second flange section on a side facing away from the respective stationary plant section in the second direction.

[0021] In some embodiments, the individual rotatable attachment section is designed in two parts and comprises a first connecting section and a first fitting section which are detachably fastened to each other, wherein the first connecting section is attached to the corresponding first connecting arm and the first fitting surface is formed on the first fitting section; Alternatively, the individual rotatable section of the system can be designed as a single piece.

[0022] In some embodiments, the single fixed attachment section is designed to be divided and to comprise a second connecting section and a second fitting section, which are detachably fastened together, wherein the second connecting section is attached to one side of the opening and the second fitting surface is formed on the second fitting section; Alternatively, the individual fixed plant section is constructed in one piece.

[0023] In some embodiments, the clamping ring further comprises a ring section and two fastening sections arranged symmetrically with respect to the ring section; wherein the ring section has the clamping bore and the opening; wherein one end of the individual fastening section is formed on the ring section, wherein the other end of the individual fastening section extends in the circumferential direction of the ring section and a gap is present between it and the ring section, and wherein the end region of the other end of the individual fastening section is detachably attached to the cooling arrangement.

[0024] In some embodiments, the cooling arrangement is provided to include a cooling element, two thermal insulation elements and two fastening elements; wherein the two thermal insulation elements are arranged symmetrically on both sides of the cooling element in the second direction, which is perpendicular to the first direction, wherein the fastening elements pass through the corresponding fastening sections and thermal insulation elements in succession and are fixed to the cooling element; and wherein the nozzle arrangement passes through the cooling element.

[0025] In some embodiments, the nozzle arrangement comprises a neck tube element, a heat guide tube element and a nozzle head element connected to each other in the first direction, wherein the neck tube element passes through the cooling arrangement, and wherein the nozzle arrangement further comprises a locking tube element attached to the outer circumference of the heat guide tube element, which passes through the clamping bore.

[0026] In some embodiments, the nozzle module further comprises a heating arrangement that is pushed onto the heat-conducting tube element from the outside.

[0027] In some embodiments, the heat-conducting tube element comprises a tube section and a third flange section projecting circumferentially from the tube section, which is arranged at an end of the tube section close to the nozzle head element; wherein the locking tube element is connected via threads to an end of the tube section located far from the third flange section; and wherein the heating arrangement is arranged between the third flange section and the locking tube element.

[0028] According to a second aspect, an embodiment of the present application provides a 3D printer comprising a nozzle module according to one of the above embodiments. Compared to the prior art, embodiments of the present application are advantageously characterized by the following: In the nozzle module and the 3D printer, the nozzle module comprises a cooling arrangement, a locking arrangement, and a nozzle assembly. The locking arrangement comprises a clamping ring attached to the cooling arrangement and a rotating element connected to the clamping ring. The clamping ring has a clamping bore extending through in a first direction and an opening communicating with the clamping bore. The nozzle assembly passes through the clamping bore and the cooling arrangement sequentially in the first direction. The rotating element is rotatable relative to the clamping ring.Rotating the rotary element relative to the clamping ring selectively decreases or increases the width of the opening, allowing the clamping ring to either clamp or release the nozzle assembly. In the embodiment of the present application, rotating the rotary element reduces the width of the opening, thereby clamping the nozzle assembly in the clamping bore of the clamping ring, thus enabling rapid assembly. The assembly process is simple and requires no additional tools, increasing assembly efficiency. Conversely, rotating the rotary element in the opposite direction increases the width of the opening, allowing the clamping ring to release the nozzle assembly, thus enabling rapid disassembly. The disassembly process is also simple and requires no additional tools, further increasing disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWING

[0029] This shows Fig. 1 a schematic three-dimensional structural view of a nozzle module according to a first embodiment of the present application; Fig. 2 a schematic structural view of the nozzle module according to the first embodiment of the present application; Fig. 3 a left view of Fig. 2; Fig. 4 a bottom view of Fig. 2; Fig. 5 a section view through line AA according to Fig. 4; Fig. 6 a section view through line BB according to Fig. 4; Fig. 7 a schematic structural view of a locking arrangement in the nozzle module according to the first embodiment of the present application in the pivoted-up position; Fig. 8 a schematic structural view of the locking arrangement in the nozzle module according to the first embodiment of the present application in the swung-down position; Fig. 9 an exploded view of the locking arrangement in the nozzle module according to the first embodiment of the present application; Fig. 10 a schematic three-dimensional structural view of a nozzle module according to a second embodiment of the present application; Fig. 11 a schematic structural view of the nozzle module according to the second embodiment of the present application; Fig. 12 a section view through line CC according to Fig. 11; Fig. 13 a section view through the line DD according to Fig. 11; Fig. 14 a left view of Fig. 11; Fig. 15 a section view through line EE according to Fig. 14; Fig. 16 a schematic structural view of the locking arrangement in the nozzle module according to the second embodiment of the present application in the pivoted-up position; Fig. 17 an exploded view of the locking arrangement in the nozzle module according to the second embodiment of the present application; Fig. 18 a structural close-up of Fig. 17; Fig. 19 a representation of the interaction of the first wedge surface and the second wedge surface when the nozzle module is swung down according to the second embodiment of the present application; Fig. 20 a representation of the interaction of the first wedge surface and the second wedge surface when the nozzle module is pivoted upwards according to the second embodiment of the present application; Fig. 21 a schematic structural view of a first pass section in the nozzle module according to the second embodiment of the present application; Fig. 22 a schematic representation of the first passport section according to Fig. 21 from a different perspective; Fig. 23 a top view according to Fig. 22; Fig. 24 a schematic structural view of a second pass section in the nozzle module according to the second embodiment of the present application; Fig. 25 a representation of the interaction of the first wedge surface and the second wedge surface when the nozzle module is pivoted upwards according to the second embodiment of the present application; Fig. 26 a representation of the interaction of the first wedge surface and the second wedge surface when the nozzle module is swung down according to the second embodiment of the present application; Fig. 27 a schematic structural view of a nozzle arrangement in the nozzle module according to an embodiment of the present application; Fig. 28 a section view through line FF according to Fig. 27; Reference symbol:

[0030] 1 - Cooling arrangement (101 - Cooling element, 102 - Thermal insulation element, 103 - Fastening element), 2 - Locking arrangement (201 - Clamping ring (2011 - Clamping bore, 2012 - Opening, 2013 - Fixed system section (2013a - First fixed system section, 2013b - Second fixed system section, 20131 - Base body (201311 - Recess), 20132 - Second mating surface, 20133 - Second transition surface, 20134 - Receiving hole, 20135 - Second connecting section (201351 - Second limiting recess), 20136 - Second mating section (201361 - Second limiting projection)), 2014 - Ring section, 2015 - Fastening section), 202 - Rotating element (2021 - Rotating system section) (20211 - first mating surface, 20212 - first mounting hole, 20213 - escape recess, 20214 - first transition surface, 20215 - first connecting section (202151 - first limiting recess), 20216 - first mating section (202161 - first limiting projection)), 2022 - grip section,2023 - first connecting arm, 2024 - second connecting arm), 203 - spacer, 204 - first connecting element (2041 - first rod section, 2042 - first flange section), 205 - second connecting element (2051 - second mounting hole, 2052 - third mounting hole), 206 - fastening element, 207 - third connecting element (2071 - second rod section, 2072 - second flange section)), 3 - nozzle assembly (301 - neck tube element, 302 - heat conduction tube element (3021 - tube section, 3022 - third flange section (30221 - mounting hole)), 303 - nozzle head element, 304 - locking tube element, 305 - cooling tube element), 4 - heating assembly (401 - heating element, 402 - protective housing, 403 - temperature sensor), 5 - pressure sensing element, 6 - boundary element, 7 - first axis, 8 - second axis. DETAILED DESCRIPTION

[0031] For a better understanding of the present application, it will be discussed in more detail below with reference to the drawings. Preferred embodiments of the present application are shown in the accompanying drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of providing these embodiments is to make the disclosure of the present application more understandable and comprehensive.

[0032] It should be noted that when an element is attached to another element, it can be attached directly to the other element or via an intermediate element. When an element is "connected" to another element, it can be connected directly or simultaneously via an intermediate element.

[0033] Unless otherwise defined, all technical and scientific terms used herein shall have the same meanings as generally understood by those skilled in the art. The terms used in the description of this application serve only to describe the problem addressed by the specific embodiments, without limiting the scope of this application.

[0034] With reference to Fig. According to the embodiments of the present application, the nozzle module comprises a cooling arrangement 1, a locking arrangement 2, and a nozzle arrangement 3. The locking arrangement 2 comprises a clamping ring 201 and a rotating element 202, wherein the clamping ring 201 is attached to the cooling arrangement 1 and the rotating element 202 is rotatably connected to the clamping ring 201. The clamping ring 201 has a clamping bore 2011 and an opening 2012, wherein both the clamping bore 2011 and the opening 2012 extend through the clamping ring 201 in a first direction and the opening 2012 communicates with the clamping bore 2011. The nozzle arrangement 3 extends successively through the clamping bore 2011 and the cooling arrangement 1 in the first direction. The rotating element 202 is rotatable relative to the clamping ring 201 in the S direction and also rotatable relative to the clamping ring 201 in the N direction, with the N direction being opposite to the S direction.During the rotation of the rotary element 202 relative to the clamping ring 201 in the S-direction, the width of the opening 2012 gradually decreases, which in turn gradually reduces the diameter of the clamping bore 2011, allowing the clamping ring 201 to gradually clamp the nozzle assembly 3. When the rotary element 202 moves in the S-direction into the pivoted position (as shown in ). Fig. 7 and Fig. When the nozzle assembly 3 is rotated (as shown in 16), it is clamped in the clamping bore 201 by the clamping ring 201.

[0035] During the rotation of the rotary element 202 relative to the clamping ring 201 in the N direction, the width W1 of the opening 2012 gradually increases and the diameter of the clamping bore 2011 increases, allowing the clamping ring 201 to gradually release the nozzle assembly 3. It is applied to Fig. 8. When the rotary element 202 is rotated in the N direction into the pivoted position, the clamping ring 201 can release the nozzle assembly 3, which makes it easier for the user to remove the nozzle assembly 3 from the nozzle module.

[0036] In the embodiments of the present application, the width W1 of the opening 2012 can be changed by rotating the rotary element 202, thereby changing the diameter of the clamping bore 2011. This allows the clamping ring 201 to clamp or release the nozzle assembly 3 inserted in the clamping bore 2011. This not only enables quick assembly and disassembly by simple rotation, but also makes the assembly and disassembly process simple and tool-free, thus increasing assembly and disassembly efficiency. Additionally, the locking arrangement 2 allows the nozzle assembly 3 to be reliably fixed to the cooling arrangement 1, thereby resolving problems such as rotation and / or vertical displacement of the nozzle assembly 3 during movement and ensuring reliable fixation of the nozzle assembly 3.

[0037] In some embodiments, the clamping ring 201 exhibits elasticity. Therefore, the nozzle assembly 3 can, under the influence of its own weight, release its connection with the clamping ring 201 when the rotating element 202 is rotated relative to the clamping ring 201, thereby increasing the width W1 of the opening 2012. This effectively prevents the clamping ring 201 from continuing to clamp the nozzle assembly 3 when the rotating element 202 is rotated into the pivoted position and also ensures that the nozzle module allows for quick disassembly, thus increasing disassembly efficiency.

[0038] In some embodiments, the opening 2012 retains a certain width when the clamping ring 201 clamps the nozzle assembly 3. That is, in the present embodiment, the width W1 of the opening 2012 can be changed by rotating the rotary element 202 in the S-direction without completely closing the opening 2012. This preserves a certain degree of deformation clearance, preventing the opening 2012 from closing before the rotary element 202 has reached its end position, which would result in ineffective clamping of the nozzle assembly 3. This increases the reliability of the nozzle module and allows the clamping ring 201 to clamp the nozzle assembly 3 more effectively.

[0039] In some embodiments, the clamping ring 201 has two opposing fixed contact sections 2013, which are arranged on both sides of the opening 2012 in a second direction that is perpendicular to the first direction and corresponds to the width direction of the opening 2012. The rotating element 202 comprises a rotatable contact section 2021, which is associated with the fixed contact sections 2013. The rotatable contact section 2021 has a first mating surface 20211, while the fixed contact sections 2013 each have a second mating surface 20132. The first mating surface 20211 and the individual second mating surface 20132 can abut each other in the second direction.When the rotatable system section 2021 is rotated relative to the single fixed system section 2013 in the S-direction, the first mating surface 20211 presses against the respective second mating surface 20132 in the second direction, thereby reducing the width W1 of the opening 2012 and the diameter of the clamping bore 2011. When the rotatable system section 2021 is rotated relative to the single fixed system section 2013 in the N-direction, the first mating surface 20211 releases the respective second mating surface 20132 in the second direction. Releasing the second mating surface 20132 in the second direction means that the restriction of the second mating surface 20132 by the first mating surface 20211 in the second direction is reduced or eliminated, so that the second mating surface 20132 can gradually return to its position in the pivoted-down state.Consequently, the release of the second mating surface 20132 by the first mating surface 20211 in the second direction causes an increase in the width W1 of the opening 2012 and the diameter of the clamping bore 2011, which allows the nozzle assembly 3 to release its connection with the clamping ring 201 under its own weight, thus making it easier for the user to remove the nozzle assembly 3 from the nozzle module.

[0040] For example, the first mating surface 20211 can be designed as a cam surface, as in Fig. Figures 3 and 7 to 9 are shown. Alternatively, the first mating surface 20211 and the single second mating surface 20132 can be designed as interacting wedge surfaces, as shown in Fig. Figures 17 to 26 are shown. Alternatively, the first fitting surface 20211 and the single second fitting surface 20132 can also have other shapes, which can be determined according to the actual circumstances.

[0041] In some embodiments (see the exemplary embodiments in Fig. In figures 1 to 9, the rotating element 202 comprises a single rotatable system section 2021, while the two stationary system sections 2013 are each configured as the first stationary system section 2013a and the second stationary system section 2013b, respectively. The rotatable system section 2021 is located on the side of the first stationary system section 2013a facing away from the second stationary system section 2013b. The end surface of the first stationary system section 2013a facing away from the second stationary system section 2013b is configured as the second mating surface 20132.

[0042] In the present embodiment, if the rotating element 202 moves in the S-direction into the Fig. When the rotary element 202 is rotated to the upturned position shown in Figure 7, the first mating surface 20211 of the rotatable system section 2013 can press against the second mating surface 20132 of the first stationary system section 2013a in the second direction. This causes the first stationary system section 2013a to move towards the second stationary system section 2013b in the second direction, thus reducing the width W1 of the opening 2012 in the second direction. This allows the clamping ring 201 to exert pressure on the nozzle assembly 3 and clamp it securely. When the rotary element 202 is rotated in the N direction in the Fig. In the downward-swinged state shown in Figure 8, the rotary element 202 can release the first fixed system section 2013a in the second direction, causing the first fixed system section 2013a to move away from the second fixed system section 2013b in order to increase the width W1 of the opening 2012. Thus, the clamping ring 201 can release the nozzle assembly 3, making it easier for the user to remove the nozzle assembly 3 from the nozzle module.

[0043] As one embodiment, as in Fig. As shown in Figures 7 to 9, the first mating surface 20211 can be configured as a cam surface whose central axis is eccentric to the first axis 7. The first axis 7 is perpendicular to the second direction, and its position relative to the second fixed mounting section 2013b is fixed. This means that the second fixed mounting section 2013b remains stationary, and the first fixed mounting section 2013a is movable in the second direction. When the rotating element 202 is rotated about the first axis 7 in the S-direction, the first mating surface 20211 presses against the second mating surface 20132 in the second direction, allowing the first fixed mounting section 2013a to move towards the second fixed mounting section 2013b in the second direction.When the rotating element 202 is rotated about the first axis 7 in the N direction, the first fitting surface 20211 releases the second fitting surface 20132 in the second direction, allowing the first fixed plant section 2013a to move away from the second fixed plant section 2013b in the second direction.

[0044] Operating principle of the present embodiment: When the rotating element 202 moves in the S-direction into the Fig. When the rotating element 202 is rotated to the upturned position shown in Figure 7, the distance between the first axis 7 and the second fixed system section 2013b reaches a maximum or is close to the maximum. The relative position between the first axis 7 and the second fixed system section 2013b is fixed, meaning that the distance between the first axis 7 and the first fixed system section 2013a in the second direction is fixed. Consequently, the distance between the first fixed system section 2013a and the second fixed system section 2013b in the second direction reaches a minimum or is close to the minimum, meaning that the width W1 of the opening 2012 in the second direction reaches a minimum or is close to the minimum, with the nozzle assembly 3 now clamped in the clamping bore of the locking assembly 2. When the rotating element 202 is rotated in the N direction into the Fig. When the lowered position shown in Figure 8 is rotated, the distance between the first axis 7 and the second fixed section 2013b reaches its minimum or is close to it. Since the distance between the first axis 7 and the first fixed section 2013a is fixed in the second direction, the distance between the first fixed section 2013a and the second fixed section 2013b in the second direction reaches its maximum or is close to it. That is, the width W1 of the opening 2012 in the second direction reaches its maximum or is close to it. Now, the locking arrangement 2 releases the nozzle assembly 3, and the user can remove the nozzle assembly 3 from the nozzle structure.It is understood that in other embodiments the rotatable system section 2021 may be designed differently, as long as the first stationary system section 2013a can be pushed or released in the second direction by rotating the rotatable system section 2021, which will not be discussed in more detail here.

[0045] In the present embodiment, the first axis 7 is perpendicular to the second direction, which not only facilitates the rotation of the rotating element 202 but also prevents the rotating element 202 and other surrounding elements from interfering with each other during rotation. This results in a more suitable spatial arrangement and a simpler structure. As an example, as shown in Fig. 4 and Fig. Figure 6 shows that the first axis 7 runs perpendicular to the first and second directions. Alternatively, the first axis 7 can also run parallel to the first direction.

[0046] It should be noted that in other embodiments, the first axis 7 can also be perpendicular to the second direction in other directions. Alternatively, it is conceivable that the first axis 7 is not perpendicular to the second direction. This can be adjusted according to the actual circumstances and will not be explained further here.

[0047] In one embodiment, the locking arrangement 2 can further comprise a spacer 203 arranged between the rotating element 202 and the clamping ring 201. The spacer 203 is attached to the clamping ring 201, and one side of the spacer 203 facing the rotating element 202 can form the second mating surface 20132. The spacer 203 can effectively protect the clamping ring 201 and prevent it from being subjected to frequent friction and damage during long-term use. This ensures a longer service life for the clamping ring 201 and reduced operating costs.

[0048] In some examples, the spacer 203 can be made of brass. A brass spacer 203 has good metal lubricity, which allows it to withstand increased friction during rotational movements of the rotating element 202, thus extending the service life of the rotating element 202 and reducing operating costs.

[0049] In some examples (see Fig. 9) The spacer 203 can be designed as part of the first stationary system section 2013a. Specifically, the first stationary system section 2013a can comprise the spacer 203 and a base body 20131, the base body 20131 being attached to one side of the opening 2012. The spacer 203 is detachably connected to the base body 20131 and is arranged between the base body 20131 and the rotating element 202. If the spacer 203 is damaged by frequent friction, it can be easily replaced without having to replace the entire clamping ring 201, thus reducing operating costs.

[0050] For example (see Fig. 3) The surface of the spacer 203 facing the rotatable mounting section 2021, i.e., the second mating surface 20132, can be designed as a convex surface. The second mating surface 20132, designed as a convex surface, can effectively increase the contact area between the spacer 203 and the rotatable mounting section 2021, thereby distributing the forces more evenly between the rotatable mounting section 2021 and the spacer 203, which further extends the service life of the overall structure.

[0051] For example, the spacer 203 can be partially embedded in the base body 20131. The base body 20131 has a recess 201311 that interacts with the spacer 203, thereby increasing the connection stability between the spacer 203 and the base body 20131. This prevents movement of the spacer 203 relative to the base body 20131 and improves the stability of the overall structure.

[0052] In one embodiment, the rotating element 202 further comprises a handle section 2022 that projects circumferentially from the rotatable support section 2021. By rotating the handle section 2022, the user can rotate the rotatable support section 2021, thus enabling quick assembly and disassembly by simple rotation, which simplifies use. In other embodiments, the handle section 2022 can also be attached at other positions on the rotatable support section 2021, which can be determined according to the actual circumstances and is not further explained here.

[0053] One embodiment (see Fig. 1 to 4 and Fig. 6 to 9) the locking arrangement 2 further comprises a first connecting element 204. The first connecting element 204 comprises a first rod section 2041 and a first flange section 2042. The first rod section 2041 extends in the second direction, and the first flange section 2042 is formed at one end of the first rod section 2041 in the second direction. The other end of the first rod section 2041 in the second direction passes successively through the second stationary system section 2013b and the first stationary system section 2013a and is then connected to the rotatable system section 2021. Here, an end of the second stationary system section 2013b facing away from the first stationary system section 2013a in the second direction rests against the first flange section 2042.The rotatable system section 2021 is rotatable relative to the first rod section 2041 about the first axis 7 and the rotatable system section 2021 is rotatably connected to the clamping ring 201 by the first connecting element 204.

[0054] In the present embodiment, the rotatable system section 2021 is rotatably connected to one end of the first rod section 2041 in the second direction, while the other end of the first rod section 2041 has the first flange section 2042 in the second direction. An end of the second fixed system section 2013b facing away from the first fixed system section 2013a in the second direction rests against the first flange section 2042, thereby effectively limiting the distance between the first axis 7 and the second fixed system section 2013b and ensuring the stability of the overall structure.

[0055] In one embodiment, the rotatable mounting section 2021 is provided with a first mounting hole 20212, the axis of which corresponds to the first axis 7. Furthermore, a clearance recess 20213 is formed on the rotatable mounting section 2021, which is arranged around the first axis 7 and communicates with the first mounting hole 20212. The locking arrangement 2 further comprises a second connecting element 205, which is inserted into the first mounting hole 20212. The first rod section 2041 of the first connecting element 204 extends through the clearance recess 20213 and is attached to the second connecting element 205.When the rotating element 202 is rotated about the first axis 7, the second connecting element 205 remains motionless under the influence of the first connecting element 204, that is, the rotating element 202 and the second connecting element 205 are rotatably connected to each other and the rotating element 202 can rotate about the first axis 7 relative to the second connecting element 205.

[0056] In one embodiment, the second connecting element 205 and the first connecting element 204 are detachably fastened together. If individual parts of the locking arrangement 2 are worn, the first connecting element 204 can be disassembled, which facilitates the replacement of the damaged parts, extends the service life of the nozzle module, and reduces operating costs.

[0057] In some examples, the second connecting element 205 and the first connecting element 204 are connected to each other via threads. The second connecting element 205 has a second mounting hole 2051, which is a threaded hole. The second mounting hole 2051 is arranged in the circumferential direction of the second connecting element 205 and extends radially along its circumference. The first connecting element 204 is connected to the second mounting hole 2051 via threads, which facilitates assembly and disassembly and makes use more convenient.

[0058] For example, the second connecting element 205 is further provided with a third mounting hole 2052, which is also a threaded hole. The third mounting hole 2052 has the first axis 7 as its axis and communicates with the second mounting hole 2051. The locking arrangement 2 further comprises a fastening element 206 connected to the third mounting hole 2052 via threads, which can abut against the first connecting element 204 connected to the second mounting hole 2051. During assembly, the first connecting element 204 can first be screwed into the second mounting hole 2051 of the second connecting element 205, with the first connecting element 204 projecting into and passing through the third mounting hole 2052. Subsequently, the fastening element 206 is screwed into the third mounting hole 2052 until one end of the fastening element 206 abuts firmly against the outer circumference of the first connecting element 204.The fastening element 206 effectively secures the first connecting element 204 and the second connecting element 205, thus preventing them from rotating relative to each other after prolonged use. This improves the stability and assembly reliability of the nozzle module.

[0059] In other embodiments (see the one in Fig. In the embodiments illustrated in Figures 10 to 26, the rotary element 202 comprises two rotatable system sections 2021, which are spaced apart in the second direction. The two stationary system sections 2013 are located between the two rotatable system sections 2021, wherein at least one of the two rotatable system sections 2021 can push or release the corresponding stationary system section 2013 in the second direction in order to move the two stationary system sections 2013 towards or away from each other in the second direction.

[0060] For example (see Fig. 16) The two rotatable system sections 2021 can remain fixed relative to each other, that is, the two rotatable system sections 2021 rotate synchronously. The two rotatable system sections 2021, which are rotating, can simultaneously push or release the corresponding fixed system sections 2013, causing the two fixed system sections 2013 to move towards or away from each other in the second direction. Specifically, when the rotating element 202 is rotated in the S-direction, the two rotatable system sections 2021 can simultaneously push the corresponding fixed system sections 2013, causing the two fixed system sections 2013 to move towards each other in the second direction to reduce the width W1 of the opening 2012 and the diameter of the clamping bore 2011, so that the clamping ring 201 can clamp the nozzle assembly 3.When the rotary element 202 is rotated in the N direction, the two rotatable system sections 2021 can simultaneously release the corresponding fixed system sections 2013, causing the two fixed system sections 2013 to move away from each other in the second direction to increase the width W1 of the opening 2012 in the second direction, so that the clamping ring 201 releases the nozzle assembly 3, which facilitates operation and can effectively enable quick assembly and disassembly.

[0061] One embodiment (see Fig. In figures 17 to 26, the first mating surface 20211 is designed as a wedge surface, and the second mating surface 20132 is also designed as a wedge surface. The first mating surface 20211 faces the corresponding second mating surface 20132 in the second direction and is arranged around the second axis 8. The second axis 8 runs parallel to the second direction. The first mating surface 20211 extends obliquely in the second direction. The second mating surface 20132 faces the corresponding first mating surface 20211 in the second direction and is arranged around the second axis 8. The second mating surface 20132 extends obliquely in the second direction.

[0062] In the present embodiment, when the rotating element 202 is in the pivoted-down position, point a of the first mating surface 20211 rests against point b of the second mating surface 20132, as shown in Fig. Figure 19 shows this. At this point, the width W2 of the combination of the single rotatable system section 2021 and the respective fixed system section 2013 reaches a minimum or is close to the minimum in the second direction, while the width W1 of the opening 2012 reaches its maximum or is close to the maximum in the second direction. During the rotation of the rotating element 202 in the S-direction, point a of the first fitting surface 20211 gradually moves away from point b, with the height difference between point a and point b continuously increasing in the second direction. As a result, the width W2 of the combination of the single rotatable system section 2021 and the respective fixed system section 2013 continuously increases in the second direction. The relative position of the two rotatable system sections 2021 of the rotating element 202 is fixed, that is, the distance between the two rotatable system sections 2021 in the second direction remains constant.Therefore, the width W1 of the opening 2012 decreases continuously in the second direction during the rotation of the rotating element 202 in the S-direction. However, when the rotating element 202 is in the pivoted position, the height difference between point a and point b in the second direction reaches a maximum or is close to the maximum. The width W2 of the combination of the single rotatable system section 2021 and the respective fixed system section 2013 in the second direction then reaches a maximum or is close to the maximum (see figure). Fig. 20). This means that the width W1 of the opening 2012 in the second direction reaches a minimum or is close to the minimum at this time. Consequently, when the rotating element 202 is rotated in the S direction, the first mating surface 20211 can press against the corresponding second mating surface 20132, causing the two fixed plant sections 2013 to move towards each other in the second direction. This reduces the width W1 of the opening 2012 in the second direction, allowing the clamping ring 201 to clamp the nozzle assembly 3. When the rotating element 202 is rotated in the N direction, the first mating surface 20211 can release the corresponding second mating surface 20132, allowing the two fixed plant sections 2013 to move away from each other in the second direction. This increases the width W1 of the opening 2012 in the second direction, allowing the clamping ring 201 to release the nozzle assembly 3.

[0063] For example (see Fig. In sections 17, 18, and 21 to 26, the individual rotatable system section 2021 can have several first fitting surfaces 20211, all arranged around the second axis 8. Each pair of adjacent first fitting surfaces 20211 is connected by a first transition surface 20214. Similarly, the individual stationary system section 2013 can have several second fitting surfaces 20132, all arranged around the second axis 8. Each pair of adjacent second fitting surfaces 20132 is connected by a second transition surface 20133. The number of first fitting surfaces 20211 and second fitting surfaces 20132 is equal. Furthermore, the first fitting surfaces 20211 and the second fitting surfaces 20132 are uniquely assigned to each other.

[0064] In the present example, the single rotatable system section 2021 has several first mating surfaces 20211, while the single stationary system section 2013 has a corresponding number of second mating surfaces 20132, with the first mating surfaces 20211 and the associated second mating surfaces 20132 abutting each other. When the rotating element 202 is turned, the force acts more evenly and stably on the clamping ring 201. This also prevents the nozzle assembly 3 from being damaged by excessive rotation of the rotating element 202. Furthermore, providing several first mating surfaces 20211 and second mating surfaces 20132 can effectively reduce the rotation angle of the rotating element 202 about the second axis 8, which further increases assembly and disassembly efficiency and facilitates operation.

[0065] Operating principle of the present example: When the rotary element 202 is rotated in the S-direction into the pivoted position, the first mating surfaces 20211 and the second mating surfaces 20132 interact with each other as in Fig. 25 together and the height difference H between the first mating surfaces 20211 and the second mating surfaces 20132 in the second direction reaches a maximum or is close to the maximum. Since the relative position of the two rotatable system sections 2021 of the rotary element 202 is fixed, the opening 2012 in this state has a width W1 in the second direction that reaches a minimum or is close to the minimum. At this point, the nozzle assembly 3 is clamped in the clamping bore of the locking assembly 2. When the rotary element 202 is rotated in the N direction into the pivoted position, the first mating surfaces 20211 and the second mating surfaces 20132 interact with each other as in Fig. 26 together and the height difference H between the first mating surfaces 20211 and the second mating surfaces 20132 in the second direction reaches a minimum or is close to the minimum. For example, the height difference H may be zero. In this state, the opening 2012 in the second direction has a width W1 that reaches a maximum or is close to the maximum, and the locking arrangement 2 releases the nozzle arrangement 3 so that the user can remove the nozzle arrangement 3 from the nozzle structure.

[0066] In some examples (see Fig. 21 to 24) the individual rotatable system section 2021 can have three first mating surfaces 20211, while the individual stationary system section 2013 can accordingly have three second mating surfaces 20132. This is not only structurally simple and easy to manufacture, but also ensures a more even and stable force distribution on the clamping ring 201 and effectively reduces the rotation angle of the rotating element 202.

[0067] It should be noted that in other embodiments the single rotatable system section 2021 may also comprise a single first mating surface 20211 or a different number of first mating surfaces, and the single stationary system section 2013 may accordingly comprise a single second mating surface 20132 or a different number of second mating surfaces, which can be determined according to the actual circumstances and is not explained further here.

[0068] In some examples (see Fig. 22, Fig. 25 and Fig. 26) The first transition surface 20214 can be a flat surface parallel to the second axis 8. The second transition surface 20133 can be a flat surface parallel to the second direction. When the rotating element 202 is rotated in the N direction until the first transition surface 20214 abuts the corresponding second transition surface 20133, the rotating element 202 cannot be rotated further in the N direction. This can effectively signal to the user that the nozzle assembly 3 has been released and can be removed from the locking assembly 2 and the cooling assembly 1, thus facilitating its use and improving the user experience.

[0069] One embodiment (see Fig. 12, Fig. 17, Fig. 18 and Fig. 24) The individual stationary system section 2013 has a receiving hole 20134, the axis of which corresponds to the second axis 8. The opening of the receiving hole 20134 faces the corresponding rotatable system section 2021, and the second mating surface 20132 is formed on the bottom surface of the receiving hole 20134. The individual rotatable system section 2021 is rotatably mounted in the respective receiving hole 20134. When the rotating element 202 is rotated relative to the locking arrangement 2, the individual rotatable system section 2021 rotates within the respective receiving hole 20134.

[0070] In the present embodiment, the individual rotatable system section 2021 is incorporated into the respective stationary system section 2013, which enables a more stable and effective interaction between the individual rotatable system section 2021 and the respective stationary system section 2013.

[0071] One embodiment (see Fig. 11, Fig. 16 and Fig. 17) The rotating element 202 further comprises two first connecting arms 2023 and a second connecting arm 2024. The two first connecting arms 2023 are spaced apart in the second direction and arranged symmetrically. One end of the second connecting arm 2024 is connected to one end of one of the first connecting arms 2023, while the other end of the second connecting arm 2024 is connected to one end of the other first connecting arm 2023. The respective rotatable system sections 2021 are attached to the other ends of the two first connecting arms 2023.

[0072] In the present embodiment, the two first connecting arms 2023 are joined together by the second connecting arm 2024, effectively fixing the relative position of the two rotatable system sections 2021. During use, the second connecting arm 2024 can serve as a handle. Rotating the second connecting arm 2024 simultaneously rotates both rotatable system sections 2021 synchronously, allowing them to simultaneously press or release the corresponding fixed system sections 2013. This clamps or releases the nozzle assembly 3. This ensures convenient use and enables quick assembly and disassembly by simple rotation, simplifying operation and increasing assembly and disassembly efficiency.In addition, the two rotating system sections 2021 are connected to form a single unit by the first connecting arms 2023 and the second connecting arm 2024. This solves the problem of potential twisting of the rotating element 202 during long-term use and ensures that the performance of the nozzle module remains unchanged even with continuous operation.

[0073] In one embodiment, the locking arrangement 2 further comprises two third connecting elements 207, which are arranged symmetrically in the second direction. The single third connecting element 207 comprises a second rod section 2071 and a second flange section 2072. The second rod section 2071 has the second axis 8 as its axis, and the second flange section 2072 is formed at one end of the second rod section 2071 in the second direction. The other end of the second rod section 2071 in the second direction passes through the corresponding rotatable mounting section 2021, and the end region of the other end of the second rod section 2071 in the second direction is attached to the corresponding fixed mounting section 2013.To prevent the individual rotatable plant section 2021 from detaching from the respective third connecting element 207, the individual rotatable plant section 2021 rests against the respective second flange section 2072 with its side facing away from the respective stationary plant section 2013 in the second direction.

[0074] In the present embodiment, the rotating element 202 is rotatably connected to the clamping ring 201 via the third connecting elements 207. The rotating element 202 can be rotated relative to the third connecting elements 207 while the third connecting elements 207 remain fixed to the clamping ring 201. This is not only structurally simple but also easy to assemble.

[0075] As one embodiment, the single third connecting element 207 can be detachably attached to the clamping ring 201, which facilitates the disassembly of the locking arrangement 2 and allows damaged components to be replaced separately.

[0076] For example, the individual third connecting element 207 can be connected to the clamping ring 201 via threads. Specifically, an external thread can be provided on the outer circumference of one end of the second rod section 2071 connected to the clamping ring 201, while the individual fixed support section 2013 can be provided with a threaded hole that interacts with the external thread. The second rod section 2071 is connected to the threaded hole via threads, which simplifies assembly and disassembly and makes it more convenient to use.

[0077] It should be noted that the rotating element 202 and / or the single third connecting element 207 may also be connected to the clamping ring 201 in other ways, which can be determined depending on the actual circumstances and is not explained in detail here.

[0078] One embodiment (see Fig. 17 and Fig. 18) The individual rotatable system section 2021 can be divided. In detail, the individual rotatable system section 2021 can comprise a first connecting section 20215 and a first fitting section 20216, which are detachably fixed to one another. Both the first fitting section 20216 and the first connecting section 20215 pass rotatably through the respective third connecting element 207, with the first connecting section 20215 being attached to the corresponding first connecting arm 2023. The first fitting section 20216 rotates synchronously with the first connecting section 20215, and the first fitting surface 20211 and the first transition surface 20214 are formed on the first fitting section 20216. If the first mating surface 20211 and / or the first transition surface 20214 become worn due to prolonged use, the first mating section 20216 can be replaced separately, which reduces operating costs and extends the service life of the overall structure.

[0079] For example, one of the components, first connecting section 20215 and first fitting section 20216, is provided with a first limiting projection, while the other component, first connecting section 20215 and first fitting section 20216, is provided with a first limiting recess. The first limiting projection and the first limiting recess interact via a plug connection and can effectively transmit torque, allowing the first fitting section 20216 to rotate synchronously with the first connecting section 20215, thus increasing the reliability of the overall structure.

[0080] In some examples (see Fig. 17 and Fig. 18) The first pass section 20216 can form at least two first limiting projections 202161 at its end furthest away from the respective fixed installation section 2013 in the second direction, which are evenly distributed around the second axis 8. Accordingly, the first connecting section 20215 is provided with first limiting recesses 202151, which are uniquely assigned to the first limiting projections 202161. The first limiting projections 202161 are inserted into the corresponding first limiting recesses 202151. By joining the first limiting projections 202161 and the first limiting recesses 202151, it is made possible for the first fitting section 20216 to rotate synchronously with the first connecting section 20215, the first connecting arm 2023 and the second connecting arm 2024, thus preventing the first fitting section 20216 from rotating about the second axis 8 relative to the first connecting section 20215.Furthermore, the first pass section 20216 and the first connecting section 20215 are arranged in the second direction between the respective fixed plant section 2013 and the respective second flange section 2072, which ensures a secure connection between the first limiting projections 202161 and the first limiting recesses 202151 and prevents the first limiting projections 202161 and the first limiting recesses 202151 from separating from each other.

[0081] It should be noted that in other embodiments, the first connecting section 20215 and the first fitting section 20216 may also be detachably connected to each other in a different manner. Alternatively, the single rotatable mounting section 2021 may be manufactured as a single piece. This can be determined according to the actual circumstances and is not explained further here.

[0082] One embodiment (see Fig. 17 and Fig. 18) The individual fixed system section 2013 can be divided. Specifically, the individual fixed system section 2013 can comprise a second connecting section 20135 and a second fitting section 20136, which are detachably fastened to one another. Both the second connecting section 20135 and the second fitting section 20136 pass through the respective third connecting element 207 and remain fixed relative to the respective third connecting element 207. The second connecting section 20135 is attached to one side of the opening 2012, and the second fitting surface 20132, the second transition surface 20133, and the receiving hole 20134 are formed on the second fitting section 20136. If the second mating surface 20132 and / or the second transition surface 20133 becomes worn due to prolonged use, the second mating section 20136 can be replaced separately, which reduces operating costs and extends the service life of the overall structure.

[0083] For example, one of the components, second connecting section 20135 and second fitting section 20136, is provided with a second limiting projection, while the other component, second connecting section 20135 and second fitting section 20136, is provided with a second limiting recess. The second limiting projection and the second limiting recess interact via a plug-in connection and can thus effectively fix the second fitting section 20136, preventing it from rotating with the first fitting section 20216. This increases the reliability of the overall structure.

[0084] In some examples (see Fig. 17 and Fig. 18) The second fitting section 20136 can form a second limiting projection 201361 at its end furthest from the respective movable support section in the second direction, which runs perpendicular to the second axis 8. Accordingly, the second connecting section 20135 is provided with a second limiting recess 201351, which interacts with the second limiting projection 201361 by means of a plug connection. The plugging together of the second limiting projection 201361 and the second limiting recess 201351 ensures that the second fitting section 20136 and the second connecting section 20135 remain fixed to each other, thus preventing rotation of the second fitting section 20136 relative to the second connecting section 20135 about the second axis 8. In addition, the second connecting section 20135 is provided with a threaded hole that is connected to the second rod section 2071 via threads.The second pass section 20136 is arranged adjacent to the respective rotatable system section 2021 and the second connecting section 20135, which ensures a secure connection between the second limiting projection 201361 and the second limiting recess 201351 and prevents the second limiting projection 201361 and the second limiting recess 201351 from separating from each other.

[0085] It should be noted that in other embodiments, the second connecting section 20135 and the second fitting section 20136 may also be detachably connected to each other in a different manner. Alternatively, the single fixed system section 2013 may also be manufactured as a single piece. This can be determined according to the actual circumstances and is not explained further here.

[0086] It should be noted that in other embodiments, both rotatable system sections 2021 can rotate simultaneously, but only one of the rotatable system sections 2021 presses or releases the corresponding stationary system section 2013, while the other rotatable system section 2021 does not press or release the corresponding stationary system section 2013 during its rotation. As a result, one of the stationary system sections 2013 moves in the second direction towards or away from the other stationary system section 2013.

[0087] For example, it is conceivable that only one of the pairs of rotatable plant section 2021 and fixed plant section 2013, which are assigned to each other, is provided with a first fitting surface 20211 and a second fitting surface 20132 that interact with each other, while the other pair of rotatable plant section 2021 and fixed plant section 2013, which are assigned to each other, does not have a first fitting surface 20211 or a second fitting surface 20132. The surfaces facing each other in the second direction of the other pair of rotatable plant section 2021 and fixed plant section 2013, which are assigned to each other, are planar surfaces that extend perpendicular to the second axis 8. In other words, the first fitting surface 20211 and the second fitting surface 20132 can be replaced by planar surfaces that extend perpendicular to the second axis 8.

[0088] For example (see Fig. 17 and Fig. 18) The individual rotatable system section 2021 can be detachably fixed to the first connecting arm 2023. For example, the two components are fastened to each other via a threaded connection element. Depending on the actual requirements, one of the pairs of rotatable system section 2021 and fixed system section 2013 with the first mating surface 20211 and the second mating surface 20132 can be replaced by the rotatable system section 2021 and the fixed system section 2013 with the aforementioned flat surfaces perpendicular to the second axis 8. This allows for more flexible application and adaptation to nozzle arrangements 3 with different diameters. Alternatively, in other embodiments, the two rotatable system sections 2021 can each be rotated.The rotated rotatable plant section 2021 then pushes or releases the corresponding fixed plant section 2013, allowing the corresponding fixed plant section 2013 to move towards or away from the other fixed plant section 2013 in the second direction.

[0089] For example, the first flange section 2042 can be inserted into the Fig. The embodiments shown in Figures 1 to 9 are omitted, while the first connecting element 204 is symmetrically connected at both ends in the second direction to two rotating elements 202 according to the illustrations in Figures 1 to 9. Fig. The embodiments shown in Figures 1 to 9 are connected. The state of the two rotary elements 202 can be kept synchronized. Alternatively, one rotary element 202 can be in the pivoted-up position while the other rotary element 202 is in the pivoted-down position, thus enabling adaptation to nozzle arrangements 3 with different diameters.

[0090] In some embodiments (see Fig. 17 and Fig. 18) The clamping ring 201 further comprises a ring section 2014 having the clamping bore 2011 and the opening 2012. That is, the two fixed attachment sections 2013 are fastened to the ring section 2014. If the single fixed attachment section 2013 is divided, the second connecting section 20135 is fastened to the ring section 2014. The clamping ring 201 further comprises two fastening sections 2015, which are arranged symmetrically with respect to the ring section 2014. One end of each of the fastening sections 2015 is formed on the ring section 2014, while the other end of each of the fastening sections 2015 extends in the circumferential direction of the ring section 2014. Furthermore, there is a gap between the individual fastening section 2015 and the ring section 2014, and the end area of ​​the other end of the individual fastening section 2015 is attached to the cooling arrangement 1.In the present embodiment, the gap between the individual mounting section 2015 and the ring section 2014 can effectively reduce the transfer of heat from the nozzle assembly 3 via the locking assembly 2 to the cooling assembly 1, thus improving thermal insulation. Furthermore, the circumferential orientation of the individual mounting section 2015 around the ring section 2014 can effectively optimize the force distribution on the mounting section 2015 and thus prevent breakage of the mounting section 2015, thereby increasing the product quality of the nozzle module.

[0091] As one embodiment, the individual fastening section 2015 can be detachably attached to the cooling arrangement 1, which facilitates the replacement of individual components as well as assembly and disassembly.

[0092] Cooling arrangement 1 serves as an example for cooling the nozzle arrangement 3 to prevent the consumable from melting in a neck tube element 301 and to ensure smooth material transport. Cooling arrangement 1 comprises a cooling element 101, two thermal insulation elements 102, and two fastening elements 103. The two thermal insulation elements 102 are arranged symmetrically on both sides of the cooling element 101 in the second direction. The fastening elements 103 are uniquely assigned to the thermal insulation elements 102. The fastening elements 103 pass sequentially through the corresponding fastening sections 2015 and thermal insulation elements 102 in the first direction and are fixed to the cooling element 101. The nozzle arrangement 3 passes through the cooling element 101.

[0093] In the present example, a thermal insulation element 102 is provided between the individual mounting section 2015 and the cooling element 101, which reduces the transfer of heat from the nozzle arrangement 3 via the mounting section 2015 to the cooling element 101, thus improving thermal insulation.

[0094] In some examples (see Fig. 5 and Fig. 15) The individual fastening element 103 can be a threaded connecting element. For example, the individual fastening element 103 can be a screw. The individual fastening element 103 passes sequentially through the corresponding fastening section 2015 and the corresponding thermal insulation element 102 and is connected to the cooling element 101 via threads. This can not only enable effective fixing of the locking arrangement 2 to the cooling arrangement 1, but also facilitate assembly and disassembly.

[0095] In some examples, the individual thermal insulation element 102 can be made of nylon, effectively blocking heat transfer. It should be noted that in other embodiments, the individual thermal insulation element 102 can also be made of other materials, which can be determined according to the actual circumstances and is not discussed further here.

[0096] In some examples, the cooling element 101 may include a cooling fin.

[0097] In some embodiments (see Fig. 5, Fig. 6, Fig. 13, Fig. 15 and Fig. 18) The nozzle assembly 3 comprises a neck tube element 301, a heat-conducting tube element 302, a nozzle head element 303, and a locking tube element 304. The neck tube element 301, the heat-conducting tube element 302, and the nozzle head element 303 are connected sequentially in the first direction, with the neck tube element 301 passing through the cooling assembly 1. The locking tube element 304 is attached to the outer circumference of the heat-conducting tube element 302 and passes through the clamping bore 2011. That is, the locking assembly 2 is in direct contact with the locking tube element 304. During assembly and disassembly, the locking tube element 304 is directly clamped or released by the locking assembly 2, thereby effectively protecting the heat-conducting tube element 302.

[0098] In one embodiment, the locking tube element 304 is detachably attached to the heat-conducting tube element 302. If the locking tube element 304 becomes damaged due to long-term use, it can be replaced separately, which extends the service life of the overall structure and reduces operating costs.

[0099] For example (see Fig. 28) The locking tube element 304 can be connected to the heat conducting tube element 302 via threads, which is not only structurally simple but also facilitates assembly and disassembly.

[0100] In some examples (see Fig. 28) The locking tube element 304 is provided with a threaded hole that extends through the locking tube element 304 in the first direction. Accordingly, an external thread is provided on the outer circumference of the area of ​​the heat-conducting tube element 302 connected to the locking tube element 304, which interacts with the threaded hole.

[0101] It should be noted that in other embodiments the locking tube element 304 and the heat conducting tube element 302 may also be connected and fastened to each other in other ways, which can be determined according to the actual circumstances and is not explained further here.

[0102] In one embodiment, a press fit exists between the heat conduction tube element 302 and the nozzle head element 303, which increases the structural stability of the nozzle assembly 3.

[0103] In some examples, the heat-conducting tube element 302 can be made of copper, which offers good thermal conductivity. It should be noted that in other embodiments, the heat-conducting tube element 302 can also be made of other materials, which can be determined according to the actual circumstances and is not discussed further here.

[0104] In one embodiment, the nozzle arrangement 3 further comprises a cooling tube element 305, which is detachably attached to the outer circumference of the neck tube element 301. The cooling tube element 305 is arranged between the cooling element 101 and the neck tube element 301. This not only effectively protects the neck tube element 301 and prevents damage to it during long-term use, but also ensures rapid heat dissipation from the neck tube element 301 via the cooling element 101 due to the close contact between the cooling element 101 and the neck tube element 301.

[0105] As an example, the cooling tube element 305 is pushed onto the outer circumference of the neck tube element 301 in the first direction, and an interference fit exists between the cooling tube element 305 and the neck tube element 301. This not only ensures a more reliable connection but also enables faster and more efficient heat transfer from the neck tube element 301 via the cooling tube element 305 to the cooling element 101.

[0106] In some examples, the cooling tube element 305 can be made of copper, which provides good cooling performance. It should be noted that in other embodiments, the cooling tube element 305 can also be made of other materials, which can be determined according to the actual circumstances and is not discussed further here.

[0107] In some embodiments, the nozzle module further comprises a heating arrangement 4, which is slid onto the heat-conducting tube element 302 from the outside. The heating arrangement 4 serves to heat the consumable material passed through the heat-conducting tube element 302, so that the nozzle head element 303 can eject the molten material.

[0108] In one embodiment, the heating arrangement 4 is detachably attached to the nozzle arrangement 3. For quick disassembly of the nozzle arrangement 3, the heating arrangement 4 and the nozzle arrangement 3 are disassembled as a whole; that is, the heating arrangement 4 is separated from the nozzle module together with the nozzle arrangement 3.

[0109] For example (see Fig. 5, Fig. 6, Fig. 13 and Fig. 15) The heat-conducting tube element 302 can comprise a tube section 3021 and a third flanged section 3022. The third flanged section 3022 projects circumferentially from the tube section 3021 and is located at an end of the tube section 3021 close to the nozzle head element 303. The locking tube element 304 is threaded to an end of the tube section 3021 located far from the third flanged section 3022, thereby fixing the heating arrangement 4 between the third flanged section 3022 and the locking tube element 304.

[0110] In some embodiments, the heating arrangement 4 includes a heating element 401. The heating element 401 is designed as a cylindrical structure that is pushed onto the heat-conducting tube element 302 from the outside. The heating element 401 serves to heat the heat-conducting tube element 302, thereby effectively heating the consumable until it melts.

[0111] For example, the heating element 401 can be an annular ceramic ring. Using an annular ceramic ring to heat the heat-conducting tube element 302 not only allows for quick disassembly, but also more efficient heat transfer and more uniform heating of the heat-conducting tube element 302, thus solving the problem of uneven heating of the nozzle assembly 3.

[0112] As one embodiment, the heating arrangement 4 can further comprise a protective housing 402 that encloses at least the heating element 401 from the outside. This prevents heat loss, ensures not only the heating effect, but also increases safety.

[0113] As one embodiment, the heating arrangement 4 can further include a temperature sensor 403 for better control of the heating effect.

[0114] For example (see Fig. 6 and Fig.13) The third flange section 3022 can be provided with a mounting hole 30221 into which the temperature sensor 403 is partially inserted. This not only facilitates assembly but also allows for a suitable spatial arrangement and promotes the miniaturization of the nozzle module.

[0115] A 3D printer according to an embodiment of the present application comprises a nozzle module according to one of the above embodiments.

[0116] In the embodiments of the present application, the width W1 of the opening 2012 can be changed by rotating the rotary element 202, thereby changing the diameter of the clamping bore 2011. This allows the clamping ring 201 to clamp or release the nozzle assembly 3 inserted in the clamping bore 2011. This not only enables quick assembly and disassembly by simple rotation, but also makes the assembly and disassembly process simple and tool-free, thus increasing assembly and disassembly efficiency. Additionally, the locking arrangement 2 allows the nozzle assembly 3 to be reliably fixed to the cooling arrangement 1, thereby resolving problems such as rotation and / or vertical displacement of the nozzle assembly 3 during movement and ensuring reliable fixation of the nozzle assembly 3.

[0117] In some embodiments, the 3D printer further comprises a base plate (not shown). The cooling element 101 of the cooling arrangement 1 is connected to the base plate via a pressure sensing element 5, wherein the pressure sensing element 5 can detect a pressure signal provided by the cooling element 101.

[0118] For example, the pressure sensing element 5 can be designed as a strain gauge. The cooling element 101 and the pressure sensing element 5 are firmly connected to each other by a threaded connection element, such as a screw, and the pressure sensing element 5 is also attached to the base plate by a threaded connection element, such as a screw.

[0119] In some embodiments, the 3D printer additionally includes a limiting element 6. The cooling assembly 1 is connected to the base plate via the limiting element 6. The limiting element 6 and the print detection element 5 are arranged at opposite ends of the cooling assembly 1 in the first direction, effectively preventing the nozzle module from vibrating during high-speed movements.

[0120] As an optional embodiment, the limiting element 6 can be connected to the base plate via threads. Furthermore, the limiting element 6 penetrates the cooling element 101 of the cooling arrangement 1 in the first direction. This not only facilitates easy assembly but also effectively limits the cooling arrangement 1, thereby ensuring a more stable and reliable assembly of the cooling arrangement 1.

[0121] The technical features of the above embodiments can be combined in any way desired, and for the sake of brevity, a description of all possible combinations of the various technical features in the above embodiments is omitted here. Provided that the combination of these technical features is not contradictory, it should be considered part of the scope of this description.

[0122] The above exemplary embodiments describe in detail only preferred embodiments of the present application and should therefore not be interpreted as limiting the scope of the patent. It should be noted that, for those skilled in the art in this field, various variants and further developments are possible without deviating from the basic idea of ​​the present application, which are intended to be included in the scope of protection of the application. The attached claims are decisive with regard to the scope of protection of the present application.

Claims

[1] Nozzle module, characterized by , that it includes the following: a cooling arrangement; a locking arrangement comprising a clamping ring attached to the cooling arrangement and a rotating element connected to the clamping ring, wherein the clamping ring has a clamping bore extending through in a first direction and an opening communicating with the clamping bore; and a nozzle arrangement which in the first direction passes successively through the clamping bore and the cooling arrangement passes through; wherein the rotating element is rotatable relative to the clamping ring, and wherein when the rotating element is rotated relative to the clamping ring the width of the opening is selectively reduced or is enlarged so that the clamping ring clamps or releases the nozzle assembly. [2] Nozzle module according to claim 1, characterized by, that the clamping ring is elastically designed, whereby, when the rotating element is rotated relative to the clamping ring, so that the width of the opening increases, the nozzle arrangement can release its connection with the clamping ring under the influence of its own weight. [3] Nozzle module according to claim 1, characterized by , that the clamping ring has two fixed mounting sections provided in a second direction, which runs perpendicular to the first direction, on two sides of the opening, wherein the second direction is the width direction of the opening; wherein the rotating element comprises a rotatable system section associated with the stationary system sections, wherein the rotatable system section has a first fitting surface and the individual stationary system section has a second fitting surface adjacent to the corresponding first fitting surface in the second direction; wherein the rotatable system section is rotatable relative to the single fixed system section, whereby the first mating surface presses or releases the corresponding second mating surface in the second direction, thereby clamping or releasing the nozzle assembly with the clamping ring. [4] Nozzle module according to claim 3, characterized by that the first mating surface is designed as a cam surface; or that the first mating surface and the second mating surface are designed as interacting wedge surfaces. [5] Nozzle module according to claim 3, characterized by, that the two stationary plant sections are each designed as the first stationary plant section and the second stationary plant section, respectively; wherein the rotating element comprises a rotatable plant section which is arranged on a side of the first stationary plant section facing away from the second stationary plant section, wherein the end surface of the first stationary plant section facing away from the second stationary plant section is designed as the second mating surface. [6] Nozzle module according to claim 5, characterized by, that the first mating surface is designed as a cam surface, the central axis of which is eccentric to a first axis which is perpendicular to the second direction, wherein the first axis is arranged in a fixed position relative to the second fixed contact section; wherein the rotating element is rotatable about the first axis so that the first mating surface pushes or releases the second mating surface in the second direction. [7] Nozzle module according to claim 6, characterized bythat the locking arrangement further comprises a first connecting element, wherein the first connecting element comprises a first rod section extending in the second direction and a first flange section formed at one end of the first rod section, wherein the other end of the first rod section passes successively through the second fixed mounting section and the first fixed mounting section and is connected to the rotatable mounting section; wherein the second fixed mounting section bears against the first flange section with its end facing away from the first fixed mounting section in the second direction, and wherein the rotatable mounting section is rotatable about the first axis relative to the first rod section. [8] Nozzle module according to claim 7, characterized by, that the rotatable system section is provided with a first mounting hole, the axis of which corresponds to the first axis, wherein a deflection recess is further formed on the rotatable system section, which is arranged around the first axis and communicates with the first mounting hole; wherein the locking arrangement further comprises a second connecting element which is inserted into the first mounting hole; wherein the first connecting element passes through the escape recess and is fixed to the second connecting element. [9] Nozzle module according to claim 8, characterized by, that the second connecting element is provided in its circumferential direction with a second mounting hole extending radially to the second connecting element, to which the first connecting element is connected by threads, wherein the second connecting element is further provided with a third mounting hole, the axis of which corresponds to the first axis and which communicates with the second mounting hole; wherein the locking arrangement further comprises a fastening element connected by threads to the third mounting hole, which serves to bear against the first connecting element connected to the second mounting hole. [10] Nozzle module according to claim 3, characterized by, that the rotating element comprises two rotatable system sections spaced apart in the second direction, wherein the two stationary system sections are located between the two rotatable system sections, wherein at least one of the two rotatable system sections can push or release the corresponding stationary system section in the second direction, causing the two stationary system sections to move towards or away from each other in the second direction. [11] Nozzle module according to claim 10, characterized by , that both the first mating surface and the second mating surface are designed as wedge surfaces arranged around a second axis parallel to the second direction and inclined in the second direction; wherein the rotating element is rotatable about the second axis, whereby the first mating surface pushes or releases the second mating surface in the second direction. [12] Nozzle module according to claim 11, characterized by , that the individual rotatable plant section has several first mating surfaces arranged around the second axis, wherein each pair of adjacent first pass surfaces are connected by a first transition surface; wherein the individual stationary plant section has several second fitting surfaces arranged around the second axis, wherein each pair of adjacent second fitting surfaces is connected to each other by a second transition surface. [13] Nozzle module according to claim 11, characterized by , that the individual stationary system section has a receiving hole facing the respective rotatable system section, the axis of which corresponds to the second axis, wherein the individual second fitting surface is formed on the bottom surface of the respective receiving hole, and wherein the individual rotatable system section is rotatably connected to the respective receiving hole. [14] Nozzle module according to claim 3, characterized by, that the rotating element further comprises 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 first connecting arms, wherein the respective rotatable system section is attached to the other ends of the two first connecting arms. [15] Nozzle module according to claim 14, characterized by , that the locking arrangement further comprises two third connecting elements arranged symmetrically in the second direction; wherein the individual third connecting element comprises a second rod section having the second axis as its axis and a second flange section formed at one end of the second rod section, wherein the other end of the second rod section passes through the corresponding rotatable mounting section and is fixed to the corresponding stationary mounting section; and wherein the individual rotatable plant section rests against the respective second flange section on a side facing away from the respective stationary plant section in the second direction. [16] Nozzle module according to claim 14, characterized by , that the individual rotatable system section is designed in two parts and comprises a first connecting section and a first fitting section which are detachably fastened to each other, wherein the first connecting section is attached to the corresponding first connecting arm and the first fitting surface is formed on the first fitting section; wherein, alternatively, the individual rotatable system section is designed in one piece. [17] Nozzle module according to claim 3, characterized by, that the single fixed system section is divided and comprises a second connecting section and a second fitting section which are detachably fastened together, wherein the second connecting section is fastened to one side of the opening and the second fitting surface is formed on the second fitting section; wherein alternatively the single fixed system section is made in one piece. [18] Nozzle module according to claim 1, characterized by , that the clamping ring further comprises a ring section and two fastening sections arranged symmetrically with respect to the ring section; wherein the ring section has the clamping bore and the opening; wherein one end of the individual fastening section is formed on the ring section, wherein the other end of the individual fastening section extends in the circumferential direction of the ring section and a gap is present between it and the ring section, and wherein the end region of the other end of the individual fastening section is detachably attached to the cooling arrangement. [19] Nozzle module according to claim 18, characterized by , that the cooling arrangement comprises a cooling element, two thermal insulation elements and two fastening elements; wherein the two thermal insulation elements are arranged symmetrically on both sides of the cooling element in the second direction, which is perpendicular to the first direction, wherein the fastening elements pass through the corresponding fastening sections and thermal insulation elements in succession and are fixed to the cooling element; and wherein the nozzle arrangement passes through the cooling element. [20] Nozzle module according to claim 1, characterized by , that the nozzle assembly comprises a neck tube element, a heat guide tube element and a nozzle head element connected to each other in the first direction in succession, wherein the neck tube element passes through the cooling assembly, and wherein the nozzle assembly further comprises a locking tube element attached to the outer circumference of the heat guide tube element, which passes through the clamping bore. [21] Nozzle module according to claim 20, characterized by , that it further includes a heating arrangement which is pushed onto the heat conduction tube element from the outside. [22] Nozzle module according to claim 21, characterized by , that the heat conducting tube element comprises a pipe section and a third flange section projecting circumferentially from the pipe section, which is arranged at an end of the pipe section close to the nozzle head element; wherein the locking tube element is connected via threads to an end of the tube section located far from the third flange section; and wherein the heating arrangement is arranged between the third flange section and the locking tube element. [23] 3D printers, characterized by that it comprises a nozzle module according to one of claims 1 to 22.

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