Spray head module and 3D printing device applying same

Abstract

The embodiment of the invention provides a spray head module and a 3D printing device applying the same. The spray head module comprises a conveying channel, a spray nozzle assembly, a heat dissipation assembly and a mounting assembly, the conveying channel extends in the first direction and is used for conveying consumables, and the conveying channel comprises an upstream part and a downstream part which are arranged in the first direction; the nozzle assembly is thermally coupled with the downstream part and used for heating the consumables located in the conveying channel; the heat dissipation assembly is thermally coupled with the upstream part, the heat dissipation assembly and the nozzle assembly are arranged in a spaced mode in the first direction, and the transmission channel is arranged between the nozzle assembly and the heat dissipation assembly; the installation assembly is arranged between the heat dissipation assembly and the nozzle assembly and used for connecting the nozzle assembly and the heat dissipation assembly. The 3D printing device comprises a main body structure and the spray head module, and the spray head module is connected to the main body structure.

Description

Technical Field

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

[0002] 3D printing technology is a rapid prototyping technology that uses digital model files as the basis, and uses special wax materials, powdered metals or plastics and other bondable materials to print layers of materials to create three-dimensional objects. Fused deposition modeling technology is one of the main 3D printing technologies. This technology heats and melts the hot-melt filament, extrudes it from the nozzle, and deposits it on the molding platform or the previous layer of solidified material. When the temperature is lower than the solidification temperature of the filament, it begins to solidify and form, and finally generates a physical object. Based on the implementation process of 3D printing technology, during the process of melting and extruding the filaments, zoned temperature control management of the filaments in different positions can help improve the 3D printing effect. How to provide a structure that can effectively meet this demand is what skilled technicians need to consider. Summary of the invention

[0003] In order to solve the problems in the prior art, the embodiments of the present application provide a nozzle module and a 3D printing device using the same.

[0004] The present application provides a nozzle module, which includes: A transmission channel extending along a first direction and used for transmitting consumables, wherein the transmission channel comprises an upstream portion and a downstream portion arranged along the first direction; a nozzle assembly thermally coupled to the downstream portion for heating the consumable within the transfer passage; a heat dissipation assembly, thermally coupled to the upstream portion, the heat dissipation assembly and the nozzle assembly being spaced apart along the first direction, and the transmission channel being provided between the nozzle assembly and the heat dissipation assembly; The mounting assembly is arranged between the heat dissipation assembly and the nozzle assembly, and is used to connect the nozzle assembly and the heat dissipation assembly.

[0005] In one embodiment, the mounting assembly includes a connecting post, and the nozzle assembly and the heat dissipation assembly are connected via the connecting post.

[0006] In one embodiment, the mounting assembly further comprises: A connecting portion, which is sleeved and connected to the nozzle assembly; The connecting column connects the heat dissipation assembly and the connecting portion.

[0007] In one embodiment, the nozzle assembly comprises: A first end portion, for extruding the consumable material; a second end portion, for allowing the consumable to enter the nozzle assembly; The first end portion and the second end portion are spaced apart along the first direction, and the connecting portion is disposed at the second end portion.

[0008] In one embodiment, the connecting portion includes: An assembly cavity, which is used to accommodate the nozzle assembly; A mounting cavity, which is used to accommodate the connecting column; The accommodating groove is used to accommodate a sensor, the mounting cavity and the accommodating groove are spaced apart along a second direction, and the first direction intersects with the second direction.

[0009] In one embodiment, the connecting portion includes: The first part is provided with the assembly cavity extending through the first direction; a second part connected to the first part, the second part being provided with the installation cavity penetrating along the first direction; The third part is provided with the receiving groove; Wherein, the second part and the third part are respectively connected to the first part.

[0010] In one embodiment, the nozzle assembly comprises: The extension portion, a connecting column connects the extension portion and the heat dissipation component.

[0011] In one embodiment, the nozzle assembly further comprises: a transmission portion, wherein the transmission channel is arranged through the transmission portion along the first direction; The extending portion and the transmission portion are arranged side by side and connected along the first direction, and the transmission portion is extended along the first direction toward a side away from the heat dissipation component.

[0012] In one embodiment, the nozzle module further includes: A connecting pipe, which is used to transmit consumables, and the heat dissipation component is sleeved on the outside of the connecting pipe; The nozzle assembly further comprises a transmission portion connected to the extension portion, one end of the connection pipe extends into the transmission portion and abuts against the nozzle assembly, and the connection pipe is spaced apart from the extension portion.

[0013] In one embodiment, the heat dissipation component includes: A third end portion, used for connecting to the mounting assembly; A fourth end portion, used to allow the consumable to enter the heat dissipation assembly; Wherein, the third end portion and the fourth end portion are spaced apart from each other along the first direction.

[0014] In one embodiment, the nozzle module further includes: a heating assembly including a heating ring; The heating ring is sleeved on the outside of the nozzle assembly so that the transmission channel passes through the heating ring along the first direction, and the mounting assembly abuts against the heating ring to fix the heating ring.

[0015] In one embodiment, the mounting assembly includes a connecting portion, the connecting portion includes a first step structure, the connecting portion is sleeved on the outside of the nozzle assembly and the heating ring, and the first step structure abuts against the heating ring; The nozzle assembly has a second step structure, and one end of the heating ring away from the first step structure is supported on the second step structure.

[0016] In one embodiment, the mounting assembly includes: A connecting portion, which is sleeved on the nozzle assembly; A plurality of connection posts are connected to the connection portion and the heat dissipation component, and the plurality of connection posts are spaced apart from the transmission channel.

[0017] In one embodiment, the connection portion is disposed at an end portion of the nozzle assembly close to the heat dissipation assembly, and the connection column is connected to the connection portion and protrudes and extends toward a side where the heat dissipation assembly is located.

[0018] In one embodiment, the heat dissipation component includes: A heat dissipation connection frame connected to the plurality of connection posts; A heat sink is connected to the heat dissipation connection frame.

[0019] An embodiment of the present application further provides a 3D printing device, which includes a main structure and a nozzle module as described in any one of the above embodiments, wherein the nozzle module is connected to the main structure.

[0020] It can be understood that the nozzle module provided in the present application and the 3D printing device using the same, the nozzle assembly and the heat dissipation assembly can provide different temperature control solutions for different parts of the consumables, improve the heat treatment effect of the consumables, and improve the 3D printing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of the nozzle module provided in an embodiment of the present application.

[0022] Figure 2 A schematic plan view of a nozzle module provided in one embodiment of the present application.

[0023] Figure 3A partial three-dimensional schematic diagram of a nozzle module provided in one embodiment of the present application.

[0024] Figure 4 A schematic three-dimensional exploded diagram of a nozzle module provided in one embodiment of the present application.

[0025] Figure 5 A cross-sectional schematic diagram of a nozzle module provided in one embodiment of the present application.

[0026] Figure 6 A schematic structural diagram of a nozzle module provided in another embodiment of the present application.

[0027] Figure 7 A schematic structural diagram of a nozzle module provided in yet another embodiment of the present application.

[0028] Figure 8 A cross-sectional schematic diagram of a nozzle module provided in yet another embodiment of the present application.

[0029] Fig. 9 A schematic structural diagram of a nozzle module provided in yet another embodiment of the present application.

[0030] Fig.10 A three-dimensional schematic diagram of a 3D printing device provided in an embodiment of the present application.

[0031] Main component symbols Nozzle module 10 Transmission channel 100 Upstream Section 101 Downstream section 102 Nozzle assembly 11 First end 1101 Second end 1102 Transmission unit 111 Throat connection end 1111 Second step structure 1112 Nozzle connection end 1113 Card slot 1114 Nozzle section 112 Extension 113 Heat dissipation component 12 The third end 1203 Fourth end 1204 Heat dissipation connection frame 121 The first heat dissipation portion 1211 Heat dissipation connection hole 12110 The second heat dissipation portion 1212 Heat dissipation cavity 12120 Connecting arm 12121 Heat sink 122 Heat dissipation connector 123 Installing Components 13 Connection part 131 First step structure 1310 Part I 1311 Part II 1312 Part III 1313 Assembly cavity 1314 Mounting cavity 1315 Receiving slot 1316 Connecting column 132 Heating element 14 Heating ring 141 Conductive member 142 Connecting pipe 15 Sensor 16 3D printing device 1 Main structure 18 Bracket 181 Forming platform 182 First direction Z Second direction X The third direction Y The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0032] The following description will refer to the accompanying drawings to more fully describe the content of the present application. Shown in the accompanying drawings are exemplary embodiments of the present application. However, the present application can be implemented in many different forms and should not be interpreted as being limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals represent identical or similar components. The terms used herein are only used for the purpose of describing specific exemplary embodiments and are not intended to limit the present application. As used herein, unless the context clearly indicates otherwise, the singular forms "one", "an" and "the" are intended to also include plural forms. In addition, when used herein, "including" and / or "comprising" and / or "having", integers, steps, operations, components and / or components, but do not exclude the presence or addition of one or more other features, regions, integers, steps, operations, components and / or their groups. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings as those generally understood by ordinary technicians in the field to which the present application belongs. Furthermore, unless explicitly defined herein, terms such as those defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the relevant art and the content of this application, and will not be interpreted as idealized or overly formal meanings.

[0033] Generally, 3D printing technology is a rapid prototyping technology based on digital model files, using special wax materials, powdered metals or plastics and other bondable materials to print layers of materials to create three-dimensional objects. Fused deposition modeling technology is one of the main 3D printing technologies. This technology heats and melts the hot-melt filament, extrude it from the nozzle, and deposits it on the molding platform or the previous layer of solidified material. When the temperature is lower than the solidification temperature of the filament, it begins to solidify and form, and finally generates a physical object. Based on the implementation process of 3D printing technology, during the process of melting and extruding the filaments, zoned temperature control management of the filaments in different positions can help improve the 3D printing effect. How to provide a structure that can effectively meet this demand is what skilled technicians need to consider.

[0034] Correspondingly, an embodiment of the present application provides a nozzle module and a 3D printing device using the same. The nozzle module includes a transmission channel, a nozzle assembly, a heat dissipation assembly and a mounting assembly. The transmission channel is extended along a first direction and is used to transmit consumables. The transmission channel includes an upstream portion and a downstream portion arranged along the first direction; the nozzle assembly is thermally coupled to the downstream portion for heating the consumables in the transmission channel; the heat dissipation assembly is thermally coupled to the upstream portion, the heat dissipation assembly and the nozzle assembly are spaced apart along the first direction, and the transmission channel is provided between the nozzle assembly and the heat dissipation assembly; the mounting assembly is provided between the heat dissipation assembly and the nozzle assembly, and is used to connect the nozzle assembly and the heat dissipation assembly. The 3D printing device includes a main structure and the nozzle module, and the nozzle module is connected to the main structure.

[0035] Furthermore, the nozzle module and the 3D printing device using the same provided by the present application, the nozzle assembly and the heat dissipation assembly can provide different temperature control solutions for different parts of the consumables, improve the heat treatment effect of the consumables, and improve the 3D printing effect.

[0036] The following will describe exemplary embodiments in conjunction with the accompanying drawings. It should be noted that the components depicted in the reference drawings are not necessarily shown to scale; and the same or similar components will be given the same or similar reference numerals or similar technical terms.

[0037] The specific implementation methods of the present application are further described in detail below with reference to the accompanying drawings.

[0038] like Figure 1 As shown, the embodiment of the present application provides a nozzle module 10, which includes a nozzle assembly 11, a heat dissipation assembly 12 and a mounting assembly 13. The heat dissipation assembly 12 is spaced apart from the nozzle assembly 11, and the mounting assembly 13 is used to connect the nozzle assembly 11 and the heat dissipation assembly 12.

[0039] In one embodiment, the nozzle module 10 further includes a transmission channel 100, which is extended along the first direction Z and used to transmit consumables. The transmission channel 100 includes an upstream portion 101 and a downstream portion 102 arranged along the first direction Z. The nozzle assembly 11 is thermally coupled to the downstream portion 102, and is used to heat the consumables located in the transmission channel 100. The heat dissipation assembly 12 is thermally coupled to the upstream portion 101, and the heat dissipation assembly 12 is spaced apart from the nozzle assembly 11 along the first direction Z, and the transmission channel 100 is provided between the nozzle assembly 11 and the heat dissipation assembly 12. The mounting assembly 13 is provided between the heat dissipation assembly 12 and the nozzle assembly 11.

[0040] It can be understood that the nozzle module 10, nozzle assembly 11 and heat dissipation assembly 12 provided in the present application can provide different temperature control solutions for different parts of the consumables, improve the heat treatment effect of the consumables, and improve the 3D printing effect.

[0041] In one embodiment, the nozzle assembly 11 may have a heating function or be configured to be thermally coupled with other structures having a heating function (such as the heating assembly 14) to melt and extrude the consumables in the nozzle assembly 11. The heat dissipation assembly 12 is configured to be thermally coupled with the consumables and / or the nozzle assembly 11 to adjust and enhance the heat dissipation effect of the consumables outside the nozzle assembly 11, control their temperature, and avoid problems such as excessive expansion or premature melting of the consumables causing blockage.

[0042] In one embodiment, the transmission channel 100 may be a tube having a through hole, or a through hole opened on the nozzle assembly 11 and / or the heat dissipation assembly 12, or a combination of the above two methods, and the present application does not limit this. In this embodiment, the transmission channel 100 is shown as a metal pipe extending generally axially, and the transmission channel 100 has a through hole generally along the axial direction inside, which is used to drive the consumables to be transported through the transmission channel 100. In other embodiments, the transmission channel 100 may also be formed by connecting and piecing together pipes connected to the nozzle assembly 11 and the heat dissipation assembly 12 respectively.

[0043] In one embodiment, the nozzle assembly 11 and the heat dissipation assembly 12 are spaced apart along a first direction Z, and the heat dissipation assembly 12 can be approximately located between the nozzle assembly 11 and the heat dissipation assembly 12 along the first direction Z, so that the nozzle assembly 11 is connected to the heat dissipation assembly 12. The transmission channel 100 can be extended along the first direction Z, so that the consumables pass through the heat dissipation assembly 12 and the nozzle assembly 11 in sequence along the first direction Z and are finally extruded in a molten state at the end of the nozzle assembly 11.

[0044] For ease of understanding, the first direction Z, the second direction X and the third direction Y are introduced for description in the embodiment of the present application. The first direction Z, the second direction X and the third direction Y are three non-parallel directions in the spatial coordinate system; in the subsequent embodiments, the first direction Z, the second direction X and the third direction Y are taken as examples of three mutually perpendicular reference directions in the three-dimensional Cartesian coordinate system for description. The directions shown in the embodiments of the present application are used to help understand the relative positional relationship of each component, but their specific directions are not limited.

[0045] It can be understood that the first direction Z can be the extension direction of the transmission channel 100, and the portion of the transmission channel 100 located in the nozzle module 10 is usually designed to be a straight line shape (for example Figure 1As shown); the transmission channel 100 is not limited to a straight line shape, but can also be curved, and the setting positions of the nozzle assembly 11, the heat dissipation assembly 12 and the mounting assembly 13 can change relatively accordingly.

[0046] In one embodiment, the nozzle assembly 11 includes a first end 1101 and a second end 1102. The first end 1101 is used for the consumable material to be extruded, and the second end 1102 is used for the consumable material to enter the nozzle assembly 11. The first end 1101 and the second end 1102 are spaced apart along the first direction Z, and the mounting assembly 13 is disposed at the second end 1102.

[0047] It can be understood that the first end 1101 is the consumable extrusion end in the nozzle assembly 11, the second end 1102 is the other end of the consumable extrusion end away from the nozzle assembly 11, and the mounting assembly 13 is arranged at the other end of the nozzle assembly 11 away from the consumable extrusion end.

[0048] In one embodiment, the heat dissipation component 12 includes a third end 1203 and a fourth end 1204. The third end 1203 is used to connect with the mounting component 13, and the fourth end 1204 is used to allow the consumables to enter the heat dissipation component 12. The third end 1203 and the fourth end 1204 are spaced apart along the first direction Z.

[0049] It can be understood that the fourth end 1204 is the consumable feeding end in the heat dissipation component 12, the third end 1203 is the other end of the consumable feeding end away from the heat dissipation component 12, and the mounting component 13 is connected to the other end of the heat dissipation component 12 away from the consumable feeding end.

[0050] In this embodiment, the second end 1102 and the third end 1203 are spaced apart to expose a section of the transmission channel 100 and to isolate the heat transfer between the upstream portion 101 and the downstream portion 102 as much as possible.

[0051] Further integration Figures 2 to 5 FIG. 1 is a schematic diagram of a nozzle module 10 provided in an embodiment of the present application. In this embodiment, the mounting assembly 13 includes a connecting post 132 , and the nozzle assembly 11 is connected to the heat dissipation assembly 12 via the connecting post 132 .

[0052] In this embodiment, the heat dissipation component 12 can be a heat dissipation structure with multiple heat dissipation blades. The heat dissipation component 12 is constructed to be able to be penetrated by the transmission channel 100. The heat dissipation component 12 can improve the heat dissipation efficiency of the consumables located in the transmission channel 100 to prevent overheating of this part of the consumables. The nozzle component 11 is spaced apart from the heat dissipation component 12. The nozzle component 11 itself can generate heat or can be used to install the heating component 14. The nozzle component 11 is constructed to be able to be penetrated by the transmission channel 100. The nozzle component 11 can heat this part of the consumables to melt it and can be squeezed out to achieve printing. Based on this, the heat dissipation component 12 and the nozzle component 11 usually have different set temperatures. In order to improve the overall thermal efficiency of the nozzle module 10, it is necessary to construct the heat dissipation component 12 and the nozzle component 11 to be spaced apart. At the same time, in order to ensure the overall connection effect of the nozzle module 10, an installation component 13 can be set to assemble the heat dissipation component 12 and the nozzle component 11.

[0053] In one embodiment, the mounting assembly 13 further includes a connecting portion 131 , which is sleeved and connected to the nozzle assembly 11 , and is disposed at the second end portion 1102 ; a connecting column 132 connects the heat dissipation assembly 12 and the connecting portion 131 .

[0054] In one embodiment, the nozzle module 10 further includes a heating assembly 14, which includes a heating ring 141. The heating ring 141 is sleeved on the outside of the nozzle assembly 11 so that the transmission channel 100 passes through the heating ring 141 along the first direction Z, and the mounting assembly 13 abuts against the heating ring 141 to fix the heating ring 141.

[0055] In one embodiment, the connecting portion 131 includes a first step structure 1310, which is sleeved on the outer sides of the nozzle assembly 11 and the heating ring 141, and the first step structure 1310 is abutted against the heating ring 141; the nozzle assembly 11 has a second step structure 1112, and one end of the heating ring 141 away from the first step structure 1310 is supported on the second step structure 1112.

[0056] In this embodiment, the nozzle assembly 11 includes a transmission portion 111 and a nozzle portion 112 connected to each other, and the transmission channel 100 is arranged through the transmission portion 111 and the nozzle portion 112. The transmission portion 111 is located on the side of the nozzle assembly 11 close to the heat dissipation component 12, and is used to connect with the mounting component 13. The nozzle portion 112 is located on the side of the nozzle assembly 11 away from the heat dissipation component 12, and is used to narrow the transmission channel 100 to extrude the consumables. The transmission channel 100 sequentially passes through the transmission portion 111 and the nozzle portion 112 along the first direction Z.

[0057] In this embodiment, the detachable connection between the transmission part 111 and the nozzle part 112 is used as an example for demonstration. For example, the transmission part 111 can be made of a material with good thermal conductivity, and the nozzle part 112 can be made of a material with high hardness. The transmission part 111 and the nozzle part 112 are detachably connected through threaded cooperation. In other embodiments, the transmission part 111 and the nozzle part 112 can also be an integrally formed structure. For example, the transmission part 111 and the nozzle part 112 are integrally formed by die casting or milling through an integral forming process.

[0058] In this embodiment, the transmission part 111 is configured to extend along the first direction Z, and the transmission part 111 may be made of a material with a high thermal conductivity and / or a good thermal conductivity (e.g., copper). A through hole is provided inside the transmission channel 100 that passes through along the first direction Z. The through hole is used to transmit consumables and constitute the transmission channel 100. The consumables in the through hole can be heated by thermal coupling with the transmission part 111. In other embodiments, the transmission part 111 may also be configured to have other shapes, and / or the transmission channel 100 may be formed by embedding a pipe in the transmission part 111.

[0059] In this embodiment, the outer diameter of the side of the transmission part 111 used for connecting with the installation assembly 13 is smaller than the outer diameter of the side of the transmission part 111 used for connecting with the nozzle part 112, so that the transmission part 111 has a second step structure 1112, and the second step structure 1112 is used to support the heating ring 141 mounted on the outside of the transmission part 111. Specifically, the transmission portion 111 includes a throat connecting end portion 1111 and a nozzle connecting end portion 1113 spaced apart along a first direction Z, the throat connecting end portion 1111 is constructed to be roughly cylindrical, the nozzle connecting end portion 1113 is constructed to be roughly truncated cone-shaped, and a second step structure 1112 is formed at the connection between the throat connecting end portion 1111 and the nozzle connecting end portion 1113 due to the different outer diameters of the two, so that the heating ring 141 can be sleeved on the outside of the throat connecting end portion 1111 and abut against the bottom surface of the nozzle connecting end portion 1113; the nozzle portion 112 and the nozzle connecting end portion 1113 are connected to the side away from the throat connecting end portion 1111, and the nozzle portion 112 and the nozzle connecting end portion 1113 can roughly form a cone shape.

[0060] In this embodiment, the heating assembly 14 includes a heating ring 141 and a conductive member 142. The conductive member 142 is electrically connected to the heating ring 141. The heating ring 141 can convert electrical energy into thermal energy and generate heat. The heating ring 141 can be a ceramic heating ring 141. The substantially cylindrical heating ring 141 can be sleeved on the outer side of the throat connection end 1111 and supported by the nozzle connection end 1113 through the second step structure 1112. The conductive member 142 is connected to the outer side of the heating ring 141 away from the throat connection end 1111. The number of the conductive members 142 can be multiple, and the multiple conductive members 142 are electrically connected to the ceramic heating ring 141 respectively. The conductive member 142 is conductive to the heating ring 141, and the heating ring 141 is energized and generates heat. The heat emitted by the heating ring 141 is transferred to the consumables located in the transmission part 111 through the transmission part 111.

[0061] In other embodiments, the nozzle assembly 11 may not be provided with a separate heating assembly 14, and the heating assembly 14 may be integrated into the nozzle assembly 11. Alternatively, in other embodiments, the heating ring 141 may be of other shapes or other types of heating materials.

[0062] In one embodiment, the connecting portion 131 includes a first portion 1311 , a second portion 1312 , and a third portion 1313 , and the second portion 1312 and the third portion 1313 are respectively connected to the first portion 1311 .

[0063] In one embodiment, the first portion 1311 defines an assembly cavity 1314 extending through the first direction Z; the second portion 1312 defines an installation cavity 1315 extending through the first direction Z; and the third portion 1313 defines an accommodation groove 1316 .

[0064] In one embodiment, the assembly cavity 1314 is used to accommodate the nozzle assembly 11 , the installation cavity 1315 is used to accommodate the connecting column 132 , the accommodation groove 1316 is used to accommodate a sensor 16 , and the installation cavity 1315 and the accommodation groove 1316 are spaced apart.

[0065] In this embodiment, the assembly cavity 1314 is configured to be through along the first direction Z, and the inner diameter of the assembly cavity 1314 is smaller when it is close to the heat dissipation component 12 along the first direction Z, and the inner diameter of the assembly cavity 1314 is larger when it is far away from the heat dissipation component 12 along the first direction Z, and the first part 1311 has a first step structure 1310 inside. After the connecting portion 131 is sleeved on the outer side of the transmission part 111 and the heating ring 141, the plate wall of the first part 1311 is located on the outer side of the heating ring 141 away from the transmission part 111 to limit the heating ring 141, and the first step structure 1310 abuts and presses the end of the heating ring 141 away from the nozzle connection end 1113 so that the second step structure 1112 cooperates to install the heating ring 141 on the transmission part 111. The first part 1311 is configured to be detachably connected to the throat connection end 1111 of the transmission part 111, and its connection method includes but is not limited to a snap connection, a threaded connection, etc. (not shown) known and feasible methods, which will not be described in detail.

[0066] In this embodiment, the second part 1312 is extended from the first part 1311 to the side deviating from the transmission channel 100, and a mounting cavity 1315 is provided in the third part 1313. The mounting cavity 1315 can be a structure that is through-set along the first direction Z, or a blind hole structure that has an opening toward the side where the heat dissipation component 12 is located along the first direction Z. One end of the connecting column 132 is arranged in the mounting cavity 1315, and is connected to the second part 1312 by means of snap connection, thread connection, abutment and limit, etc.; and the other end of the connecting column 132 is connected to the heat dissipation component 12 by means of snap connection, thread connection, abutment and limit, etc. It can be understood that the heat dissipation component 12 is connected to the connecting column 132, the connecting column 132 is connected to the connecting portion 131, and the connecting portion 131 is connected to the nozzle assembly 11, so that the heat dissipation component 12 is connected to the nozzle assembly 11.

[0067] In this embodiment, the third part 1313 is extended from the first part 1311 to the side away from the transmission channel 100, and a receiving groove 1316 is provided in the third part 1313. The receiving groove 1316 is used to set a sensor 16 (such as a temperature sensor or an infrared sensor, etc.). The sensor 16 is arranged in the receiving groove 1316 and close to the heating component 14 and the nozzle component 11, and is used to sense the temperature of the heating component 14 and / or the nozzle component 11, and is used to monitor the temperature of the molten consumable.

[0068] In this embodiment, the first part 1311 and the third part 1313 are symmetrically arranged on opposite sides of the first part 1311, the length of the third part 1313 and the first part 1311 along the first direction Z can be approximately the same, and the length of the second part 1312 along the first direction Z can be constructed to be shorter than the third part 1313 and the first part 1311, which can help reduce the volume of the connecting part 131 and reduce the weight of the connecting part 131, thereby helping to achieve lightweighting of the nozzle module 10.

[0069] In this embodiment, the connection part 131 can be an integral structure, and the first part 1311, the second part 1312 and the third part 1313 are different areas of the connection part 131 divided according to their functions, and the first part 1311, the second part 1312 and the third part 1313 are actually integrally formed. In other embodiments, the connection part 131 can also be a split type, and the first part 1311, the second part 1312 and the third part 1313 are detachably connected to each other.

[0070] In this embodiment, the second portion 1312 and the third portion 1313 may be respectively disposed on opposite sides of the first portion 1311 along the second direction X. In other embodiments, the second portion 1312 and the third portion 1313 may also be disposed in other ways compared to the first portion 1311 .

[0071] Further integration Figure 6 FIG. 2 is a schematic diagram of a nozzle module 10 provided in another embodiment of the present application. In this embodiment, the mounting assembly 13 includes a connecting post 132 , and the nozzle assembly 11 is connected to the heat dissipation assembly 12 via the connecting post 132 .

[0072] In one embodiment, the nozzle assembly 11 further includes an extension portion 113 , and a connecting post 132 connects the extension portion 113 and the heat dissipation assembly 12 .

[0073] In one embodiment, the nozzle module 10 further includes a connecting tube 15 for transmitting consumables, and the heat dissipation component 12 is sleeved on the outside of the connecting tube 15 .

[0074] In one embodiment, the extending portion 113 is connected to the transmission portion 111 , one end of the connecting tube 15 extends into the transmission portion 111 and abuts against the nozzle assembly 11 , and the connecting tube 15 and the extending portion 113 are spaced apart.

[0075] In one embodiment, the transmission channel 100 is arranged through the transmission part 111 along the first direction Z, and the extension part 113 is arranged side by side and connected with the transmission part 111 along the first direction Z. The transmission part 111 is extended along the first direction Z toward the side away from the heat dissipation component 12, and the extension part 113 is connected to the transmission part 111 and extends toward the side deviating from the transmission channel 100. In this embodiment, the extension part 113 is an example of a roughly block-shaped protruding structure arranged on one side of the transmission part 111 along the second direction X. In other embodiments, the extension part 113 may also be other shapes.

[0076] In this embodiment, one end of the transmission part 111 is connected to the nozzle part 112, and the other end of the transmission part 111 is connected to the extension part 113. The connection column 132 is connected to the extension part 113 to achieve the connection between the nozzle assembly 11 and the heat dissipation assembly 12.

[0077] In this embodiment, the extension portion 113 and the transmission portion 111 are separated as an example for display, and the heating component 14 is sandwiched between the extension portion 113 and the transmission portion 111 to achieve fixation. In other embodiments, the transmission portion 111 and the extension portion 113 can be an integral structure, and the heating component 14 can be integrated into the nozzle component 11 or installed by other installation methods. The sensor 16 can be omitted or installed at other positions of the nozzle component 11 and / or the heating component 14 by other methods.

[0078] In this embodiment, the connecting tube 15 can be used to form the transmission channel 100, and the connecting tube 15 is connected to the heat dissipation component 12 and is arranged through the heat dissipation component 12. One end of the connecting tube 15 extends into the transmission part 111 and communicates with the channel in the transmission part 111 to transmit the consumables. At the same time, the connecting tube 15 is connected to the transmission part 111 by means of snap connection, thread connection, abutment and limit, etc. It can be understood that the heat dissipation component 12 and the nozzle component 11 are connected to a connecting tube 15 through a spaced connecting column 132, so that the connection between the heat dissipation component 12 and the nozzle component 11 is more stable.

[0079] Further integration Figures 7 to 9 , a schematic diagram of a nozzle module 10 provided in another embodiment of the present application is shown. In this embodiment, the mounting assembly 13 includes a connecting portion 131 and a plurality of connecting posts 132 , the connecting portion 131 is sleeved on the nozzle assembly 11 , and the plurality of connecting posts 132 are all connected to the heat dissipation assembly 12 and the connecting portion 131 .

[0080] In one embodiment, the connecting portion 131 is disposed at the end of the nozzle assembly 11 close to the heat dissipation assembly 12 , the connecting column 132 is connected to the connecting portion 131 and protrudes and extends toward the side where the heat dissipation assembly 12 is located, and the plurality of connecting columns 132 are spaced apart from the transmission channel 100 .

[0081] In this embodiment, the nozzle assembly 11 itself can generate heat or can be used to install the heating assembly 14. The nozzle assembly 11 is constructed to be able to be penetrated by the transmission channel 100. The nozzle assembly 11 can heat this part of the consumables to make it melt and be able to be squeezed out to achieve printing. The heat dissipation assembly 12 and the nozzle assembly 11 usually have different set temperatures. In order to improve the overall thermal efficiency of the nozzle module 10, the heat dissipation assembly 12 and the nozzle assembly 11 are constructed to be spaced apart. At the same time, in order to ensure the overall connection effect of the nozzle module 10, the heat dissipation assembly 12 and the nozzle assembly 11 are spaced apart and connected through the installation assembly 13. Among them, the connecting portion 131 is connected to the nozzle assembly 11 by means of snap-on, threaded connection, abutment and limiting, and the plurality of connecting columns 132 are each connected to the connecting portion 131 and the heat dissipation assembly 12.

[0082] It can be understood that the structures and functions of the nozzle assembly 11 and the heating assembly 14 in this embodiment may be the same or similar to those of the nozzle assembly 11 and the heating assembly 14 in the aforementioned embodiments, and are not described in detail here.

[0083] In one embodiment, the heat dissipation assembly 12 includes a heat dissipation connection frame 121 and a heat dissipation member 122. The heat dissipation connection frame 121 is connected to a plurality of connection columns 132, and the heat dissipation member 122 is connected to the heat dissipation connection frame 121. It can be understood that both the heat dissipation connection frame 121 and the heat dissipation member 122 can be provided with heat dissipation blades for enhancing the heat dissipation effect.

[0084] In this embodiment, the heat dissipation connection frame 121 includes a first heat dissipation portion 1211 and a second heat dissipation portion 1212 connected and arranged. The first heat dissipation portion 1211 is located at one end of the heat dissipation connection frame 121 away from the nozzle assembly 11, and the second heat dissipation portion 1212 is located at one end of the heat dissipation connection frame 121 close to the nozzle assembly 11. The second heat dissipation portion 1212 is configured to be connected to a plurality of connection columns 132. A heat dissipation connection hole 12110 is provided on the first heat dissipation portion 1211. The heat dissipation connection hole 12110 can be used to accommodate a connection piece such as a bolt, so that the first heat dissipation portion 1211 can be externally mounted with a cooling unit (such as an air cooling unit, not shown in the figure) to improve the heat dissipation effect. A heat dissipation cavity 12120 is provided on the second heat dissipation portion 1212. The physical frame of the second heat dissipation portion 1212 is used to connect a plurality of connection columns 132. The heat dissipation cavity 12120 is used to accommodate a heat dissipation element 122. The heat dissipation element 122 is configured to be directly in contact with the transmission channel 100 to improve the heat dissipation effect.

[0085] It can be understood that the cooling unit externally mounted on the first heat dissipation part 1211 can be arranged corresponding to the heat dissipation cavity 12120 of the second heat dissipation part 1212 to enhance the heat dissipation effect of the heat dissipation element 122 located in the heat dissipation cavity 12120 .

[0086] Further integration Figures 7 and 8 As shown, in this embodiment, the first heat dissipation part 1211 is roughly an integral structure, and the heat dissipation member 122 is connected to the first heat dissipation part 1211 through a heat dissipation connector 123, and the heat dissipation connector 123 can be a bolt. The side of the second heat dissipation part 1212 away from the first heat dissipation part 1211 is a frame with a split configuration, and the second heat dissipation part 1212 includes two connecting arms 12121 spaced apart along the second direction X, and the two spaced connecting arms 12121 avoid each other to form a heat dissipation cavity 12120. The end of the connecting arm 12121 away from the nozzle assembly 11 is connected to the first heat dissipation part 1211, and the end of the connecting arm 12121 close to the nozzle assembly 11 is connected to the mounting assembly 13. The two connecting arms 12121 are respectively arranged on both sides of the heat dissipation cavity 12120 along the second direction X, and the two connecting arms 12121 are respectively connected to a connecting column 132, and the two connecting columns 132 are respectively located on both sides of the transmission channel 100 along the second direction X.

[0087] In this embodiment, the connection portion 131 of the mounting assembly 13 may be configured to be substantially in the shape of a plate, and two connection posts 132 are connected to two sides of the connection portion 131 along the second direction X at intervals.

[0088] Further integration Fig. 9 As shown, in this embodiment, the first heat dissipation part 1211 and the second heat dissipation part 1212 are roughly an integral structure, the heat dissipation cavity 12120 is formed by hollowing out the second heat dissipation part 1212, and the side of the second heat dissipation part 1212 away from the first heat dissipation part 1211 is a frame with a connection configuration.

[0089] In this embodiment, a slot 1114 recessed toward the side where the transmission channel 100 is located may be provided on the nozzle assembly 11. The connecting portion 131 may be plate-shaped, and the connecting portion 131 is sleeved on the outside of the nozzle assembly 11 and is engaged with the nozzle assembly 11 through a slotted structure. There are four connecting posts 132, and the four connecting posts 132 are respectively connected to the four corners of the connecting portion 131, that is, two spaced connecting posts 132 are provided along the second direction X or the third direction Y.

[0090] Further integration Fig.10 As shown, an embodiment of the present application further provides a 3D printing device 1 , which includes a main structure 18 and a nozzle module 10 as in any one of the aforementioned embodiments, and the nozzle module 10 is connected to the main structure 18 .

[0091] In this embodiment, the main structure 18 includes a bracket 181 and a molding platform 182. The nozzle module 10 and the molding platform 182 are respectively connected to the bracket 181. The nozzle module 10 and the molding platform 182 can move relative to each other to achieve 3D printing.

[0092] In the above, the specific implementation of the present application is described with reference to the accompanying drawings. However, those skilled in the art will appreciate that various changes and substitutions may be made to the specific implementation of the present application without departing from the spirit and scope of the present application. These changes and substitutions are all within the scope defined by the present application.

Claims

1. A nozzle module, characterized in that: include: A transmission channel extending along a first direction and used for transmitting consumables, wherein the transmission channel comprises an upstream portion and a downstream portion arranged along the first direction; a nozzle assembly thermally coupled to the downstream portion for heating the consumable within the transfer passage; a heat dissipation assembly, thermally coupled to the upstream portion, the heat dissipation assembly and the nozzle assembly being spaced apart along the first direction, and the transmission channel being provided between the nozzle assembly and the heat dissipation assembly; The mounting assembly is arranged between the heat dissipation assembly and the nozzle assembly, and is used to connect the nozzle assembly and the heat dissipation assembly.

2. The nozzle module according to claim 1, characterized in that: The mounting assembly includes a connecting column, and the nozzle assembly is connected to the heat dissipation assembly via the connecting column.

3. The nozzle module according to claim 2, characterized in that: The installation assembly also includes: A connecting portion, which is sleeved and connected to the nozzle assembly; The connecting column connects the heat dissipation assembly and the connecting portion.

4. The nozzle module according to claim 3, characterized in that: The nozzle assembly comprises: A first end portion, for extruding the consumable material; a second end portion, for allowing the consumable to enter the nozzle assembly; The first end portion and the second end portion are spaced apart along the first direction, and the connecting portion is disposed at the second end portion.

5. The nozzle module according to claim 3, characterized in that: The connecting portion comprises: An assembly cavity, which is used to accommodate the nozzle assembly; A mounting cavity, which is used to accommodate the connecting column; The accommodating groove is used to accommodate a sensor, the mounting cavity and the accommodating groove are spaced apart along a second direction, and the first direction intersects with the second direction.

6. The nozzle module according to claim 5, characterized in that: The connecting portion comprises: The first part is provided with the assembly cavity extending through the first direction; a second part connected to the first part, the second part being provided with the installation cavity penetrating along the first direction; The third part is provided with the receiving groove; Wherein, the second part and the third part are respectively connected to the first part.

7. The nozzle module according to claim 2, characterized in that: The nozzle assembly comprises: The extension portion, a connecting column connects the extension portion and the heat dissipation component.

8. The nozzle module according to claim 7, characterized in that: The nozzle assembly further comprises: a transmission portion, wherein the transmission channel is arranged through the transmission portion along the first direction; The extending portion and the transmission portion are arranged side by side and connected along the first direction, and the transmission portion is extended along the first direction toward a side away from the heat dissipation component.

9. The nozzle module according to claim 7, characterized in that: The nozzle module also includes: A connecting pipe, which is used to transmit consumables, and the heat dissipation component is sleeved on the outside of the connecting pipe; The nozzle assembly further comprises a transmission portion connected to the extension portion, one end of the connection pipe extends into the transmission portion and abuts against the nozzle assembly, and the connection pipe is spaced apart from the extension portion.

10. The nozzle module according to claim 1, characterized in that: The heat dissipation component comprises: A third end portion, used for connecting to the mounting assembly; A fourth end portion, used to allow the consumable to enter the heat dissipation assembly; Wherein, the third end portion and the fourth end portion are spaced apart from each other along the first direction.

11. The nozzle module according to claim 1, characterized in that: The nozzle module also includes: a heating assembly including a heating ring; The heating ring is sleeved on the outside of the nozzle assembly so that the transmission channel passes through the heating ring along the first direction, and the mounting assembly abuts against the heating ring to fix the heating ring.

12. The nozzle module according to claim 11, characterized in that: The mounting assembly includes a connecting portion, the connecting portion includes a first step structure, the connecting portion is sleeved on the outside of the nozzle assembly and the heating ring, and the first step structure abuts against the heating ring; The nozzle assembly has a second step structure, and one end of the heating ring away from the first step structure is supported on the second step structure.

13. The nozzle module according to claim 1, characterized in that: The installation assembly includes: A connecting portion, which is sleeved on the nozzle assembly; A plurality of connection posts are connected to the connection portion and the heat dissipation component, and the plurality of connection posts are spaced apart from the transmission channel.

14. The nozzle module according to claim 13, characterized in that: The connecting portion is arranged at the end of the nozzle assembly close to the heat dissipation assembly, and the connecting column is connected to the connecting portion and protrudes and extends toward the side where the heat dissipation assembly is located.

15. The nozzle module according to claim 13, characterized in that: The heat dissipation component comprises: A heat dissipation connection frame connected to the plurality of connection posts; A heat sink is connected to the heat dissipation connection frame.

16. A 3D printing device, characterized in that: It comprises a main structure and a nozzle module as described in any one of claims 1 to 15, wherein the nozzle module is connected to the main structure.

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