Quick-heating insert, nozzle and 3D printer

Abstract

The utility model relates to a quick-heating plug-in, a nozzle and a 3D printer, a first main body end of a plug-in main body is connected with a second auxiliary body end of a plug-in auxiliary body, an auxiliary body channel is communicated with a main body channel, and the transverse outer contour size of at least one part of structure of the plug-in auxiliary body is larger than that of the plug-in main body; at least one drainage channel penetrating through the wall face of the quick-heating insert is formed in the side wall of the quick-heating insert. When the quick-heating insert is assembled in the fluid main channel of the nozzle body, two flow paths can be formed, one flow path is composed of the appendage channel, the drainage channel and the drainage gap and is mainly used for stripping off the softened outer layer of the material, so that the inner core of the material is exposed, and the other flow path is used for stripping off the outer layer of the material. And the other flow path is a flow path formed by the auxiliary body channel and the main body channel, and is mainly used for heating and melting the inner core of the material more quickly and more efficiently in the states of smaller diameter and shorter heating distance, so that the melting efficiency of consumables is improved.

Description

Technical Field

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

[0002] A 3D printer, also known as a three-dimensional printer, is a machine that uses additive manufacturing technology, or rapid prototyping technology. Based on a digital model file, it uses adhesive materials such as special wax, powdered metal, or plastic to create three-dimensional objects by printing layer by layer. Currently, 3D printers are used to manufacture products. This technology constructs objects layer by layer. The principle of a 3D printer is to feed the data and raw materials into the 3D printer, and the machine will produce the product layer by layer according to the program.

[0003] FDM (Fused Deposition Modeling) is a 3D printing method. FDM 3D printing uses thermoplastic materials, such as wax, ABS, and nylon, and is fed in filament form. The material is heated and melted within a nozzle, which then moves along the part's cross-sectional contours and fill path, extruding the melted material. The material rapidly solidifies and bonds with the surrounding material.

[0004] The nozzle in an FDM 3D printer is used to melt and extrude molten filaments. After solid filaments enter the nozzle under external force, they are heated and melted into a molten state. The filaments are then extruded from the nozzle outlet, gradually accumulating layer by layer to create a 3D model. However, existing nozzle designs have poor filament melting performance and cannot meet the demands of high-speed printing. Therefore, filament melting efficiency needs to be improved. Utility Model Content

[0005] Based on this, it is necessary to provide a fast-heating plug-in, a nozzle and a 3D printer to address the above-mentioned technical problems.

[0006] The present application provides a fast-heating insert, the fast-heating insert comprising:

[0007] The plug-in body has a first main body end and a second main body end facing oppositely, and a main body passage is defined inside the plug-in body and passes through the first main body end and the second main body end;

[0008] A plug-in appendage, the plug-in appendage having a first appendage end and a second appendage end facing oppositely, an appendage passage extending through the first appendage end and the second appendage end, the first main body end of the plug-in main body being connected to the second appendage end of the plug-in appendage, and the appendage passage communicating with the main body passage;

[0009] The transverse outer contour dimension of at least a part of the structure of the plug-in appendage is larger than the transverse outer contour dimension of the plug-in main body, and the side wall of the quick-heating inner plug-in is provided with at least one drainage channel penetrating the wall surface.

[0010] In one embodiment, the transverse outer contour of the plug-in appendage gradually decreases from the first appendage end to the second appendage end, and the side wall of the plug-in appendage is provided with at least one drainage channel penetrating the wall surface.

[0011] In one embodiment, the plug-in body is a cylinder, and the transverse outer contour dimension of the plug-in body is configured as the outer diameter of the plug-in body; and / or,

[0012] The plug-in appendage is a variable diameter cylinder, and the transverse outer contour dimension of the plug-in appendage is configured as the outer diameter of the plug-in appendage. In the direction from the first appendage end to the second appendage end, the outer diameter of the plug-in appendage gradually decreases, and the channel diameter of the appendage channel gradually decreases.

[0013] In one embodiment, the outer diameter of the plug-in body is equal to the outer diameter of the second appendage end of the plug-in appendage; and / or,

[0014] The number of the drainage channels is set to be several, and the several drainage channels are distributed on the side wall of the plug-in appendage along the circumferential direction of the appendage channel.

[0015] In one embodiment, a circular ring is defined on the plug-in appendage, which surrounds the central axis of the plug-in body, and the diameter of the circular ring is larger than the outer diameter of the plug-in body. Several drainage channels are distributed on the side wall of the plug-in appendage along the trajectory of the circular ring.

[0016] In one embodiment, the rapid heating insert comprises:

[0017] A heat-conducting element is provided on the plug-in attachment.

[0018] In one embodiment, the heat-conducting element is a columnar element, and the number of the heat-conducting elements is set to be several, and the several heat-conducting elements are distributed on the side wall of the plug-in appendage along the circumferential direction of the appendage channel;

[0019] Each of the heat-conducting elements is arranged on the inner wall of the plug-in appendage along the channel direction of the appendage channel, wherein one end of the heat-conducting element is connected to the inner wall of the plug-in appendage, and the other end of the heat-conducting element is in a non-connected suspended state along a direction away from the plug-in appendage.

[0020] The present application provides a nozzle, comprising:

[0021] A nozzle body, wherein a main fluid passage with two ends extending therethrough is formed inside the nozzle body;

[0022] The quick-heating inner plug-in is arranged in the main fluid channel, wherein the plug-in appendage of the quick-heating inner plug-in is in limited contact with the inner wall of the channel of the main fluid channel, and there is a drainage gap between the plug-in body of the quick-heating inner plug-in and the inner wall of the channel of the main fluid channel, and the drainage channel of the plug-in appendage connects the drainage gap and the appendage channel of the plug-in appendage.

[0023] In one embodiment, the number of the quick-heating inserts is set to be several, and along the fluid flow direction of the main fluid channel, the channel diameters of the appendage channels of the insert appendages of the several quick-heating inserts gradually decrease.

[0024] In one embodiment, the nozzle comprises:

[0025] A preheating element, wherein a preheating channel with two ends extending therethrough is provided inside the preheating element, the preheating element is arranged in the main fluid channel of the nozzle body, and the preheating channel is in communication with the main fluid channel; and / or,

[0026] A throat element, wherein a throat passage is formed inside the throat element and is connected to the inlet end of the nozzle body, and the throat passage is connected to the main fluid passage; and / or,

[0027] A nozzle element is provided with a nozzle channel with two ends extending therethrough, the nozzle element is connected to the outlet end of the nozzle body, and the nozzle channel is communicated with the main fluid channel.

[0028] The present application provides a 3D printer, which includes the rapid heating insert or the nozzle.

[0029] In the above-mentioned quick-heating insert, nozzle and 3D printer, when the quick-heating insert is assembled in the main fluid channel of the nozzle body, two flow paths will be formed between the quick-heating insert and the nozzle body. One flow path is the flow path composed of the appendage channel, the drainage channel and the drainage gap, which is mainly used to peel off the softened outer layer of the material to expose the inner core of the material. The other flow path is the flow path composed of the appendage channel and the main channel, which can quickly and efficiently heat and melt the inner core of the material under the condition of smaller diameter and shorter heating distance, thereby improving the efficiency of melting the consumables. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic structural diagram of a nozzle provided in one embodiment of the present application.

[0031] Figure 2A schematic structural diagram of a nozzle provided in another embodiment of the present application.

[0032] Figure 3 For example Figure 2 Schematic diagram of the partial structure of the nozzle shown.

[0033] Figure 4 For example Figure 3 AA section view of the nozzle shown.

[0034] Figure 5 A three-dimensional view of a nozzle body provided in accordance with one embodiment of the present application.

[0035] Figure 6 A schematic diagram of the structure of a fast-heating inserter provided in one embodiment of the present application.

[0036] Figure 7 For example Figure 6 A perspective view of the quick-heat insert shown.

[0037] Figure 8 This is a schematic structural diagram of the fast-heating inserter provided in the second embodiment of the present application.

[0038] Figure 9 For example Figure 8 A perspective view of the quick-heat insert shown.

[0039] Figure 10 This is a schematic structural diagram of the rapid heating insert provided in the third embodiment of the present application.

[0040] Figure 11 For example Figure 10 A perspective view of the quick-heat insert shown.

[0041] Figure 12 This is a schematic structural diagram of the fast-heating inner plug-in provided in the fourth embodiment of the present application.

[0042] Figure 13 For example Figure 12 A perspective view of the quick-heat insert shown.

[0043] Figure 14 This is a schematic structural diagram of the rapid heating insert provided in the fifth embodiment of the present application.

[0044] Figure 15 For example Figure 4 A perspective view of the quick-heat insert shown.

[0045] Figure 16 This is a schematic structural diagram of the rapid heating insert provided in the sixth embodiment of the present application.

[0046] Figure 17 For example Figure 16A perspective view of the quick-heat insert shown.

[0047] Figure 18 A three-dimensional diagram of a preheating element provided in accordance with one embodiment of the present application.

[0048] Figure 19 For example Figure 18 A cross-sectional view of the preheating element is shown.

[0049] Figure 20 For example Figure 18 A perspective view of the preheating element is shown.

[0050] Figure Number:

[0051] 1000, quick-heating insert; 2000, nozzle body; 3000, preheating element; 4000, throat element; 5000, nozzle element; 6000, heat dissipation element; 7000, connecting element; 8000, heating element;

[0052] 1100, plug-in body; 1200, plug-in attachment; 1300, heat conducting element;

[0053] 1101, main channel;

[0054] 1200a, annular ring; 1201, appendage channel; 1202, drainage channel;

[0055] 2001, main fluid channel; 2002, drainage gap;

[0056] 3001, preheating channel;

[0057] 4001, throat passage;

[0058] 5001. Nozzle channel. DETAILED DESCRIPTION

[0059] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0060] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0061] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0062] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0063] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0064] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0065] See Figures 1 to 5 As shown, the present application provides a nozzle, which includes a nozzle body 2000 and one or more quick-heating inserts 1000. The interior of the nozzle body 2000 is provided with a main fluid channel 2001 with two ends passing through. The main fluid channel 2001 is used to pass the consumables, and the nozzle body 2000 is equipped with a heating element 8000. The heating element 8000 is used to increase the temperature in the above-mentioned main fluid channel 2001, thereby heating and melting the consumables passing through the main fluid channel 2001.

[0066] Continue reading Figures 1 to 3 As shown, in different nozzle embodiments, in addition to the above-mentioned quick-heating insert 1000 and heating element 8000, the nozzle body 2000 is also equipped with auxiliary elements with various functions such as a preheating element 3000, a throat element 4000, a nozzle element 5000, a heat dissipation element 6000, and a connecting element 7000. Among them, the relevant technical contents of the auxiliary elements such as the preheating element 3000, the throat element 4000, the nozzle element 5000, the heat dissipation element 6000, and the connecting element 7000 will be described in detail later.

[0067] The quick-heat insert 1000 can be configured in a variety of structures or sizes, such as Figures 6 to 17 As shown, six embodiments of different structures or sizes of the quick-heating insert 1000 are provided in the present application. It should be noted that those skilled in the art can adaptively change the structure and size of the quick-heating insert 1000 according to actual needs to meet the use of the quick-heating insert 1000 in the nozzle and exert its expected functions and effects, which is not limited here.

[0068] First, in one embodiment, see Figure 6 and Figure 7 As shown, a quick-heating inner plug-in 1000 may include an insert body 1100 and an insert attachment 1200. Figure 6As shown, the plug-in body 1100 has a first body end and a second body end facing oppositely, the first body end is the end of the plug-in body 1100 facing upward, and the second body end is the end of the plug-in body 1100 facing downward, wherein a body channel 1101 is opened inside the plug-in body 1100 to pass through the first body end and the second body end.

[0069] Continue reading Figure 6 As shown, the plug-in appendage 1200 has a first appendage end and a second appendage end facing opposite directions. The first appendage end is the end of the plug-in appendage 1200 facing upward, and the second appendage end is the end of the plug-in appendage 1200 facing downward. The plug-in appendage 1200 has an appendage channel 1201 extending through the first appendage end and the second appendage end. Figure 6 and Figure 7 In the embodiment, the first main body end of the plug-in main body 1100 is connected to the second appendage end of the plug-in appendage 1200 , and the appendage channel 1201 is communicated with the main body channel 1101 .

[0070] The above is the basic structure of the plug-in body 1100 and the plug-in attachment 1200. The plug-in body 1100 and the plug-in attachment 1200 can be made in one piece, or can be made separately and then connected by welding, bonding, etc., which is not limited here. Figure 6 and Figure 7 As shown, the lateral outer contour of at least a portion of the structure of the plug-in appendage 1200 is larger than the lateral outer contour of the plug-in main body 1100, and the side wall of the quick-heating inner plug-in 1000 is provided with at least one drainage channel 1202 passing through its wall surface, and the drainage channel 1202 is used to drain out of the main body channel 1101 and the appendage channel 1201.

[0071] In order to facilitate understanding, the transverse outer contour dimension of at least a portion of the structure of the plug-in attachment 1200 is greater than the transverse outer contour dimension of the plug-in main body 1100. Figure 6 and Figure 7 In the embodiment shown, in this specific embodiment, the plug-in body 1100 can be configured as a cylinder. In this case, the transverse outer dimension of the plug-in body 1100 can be considered as the outer diameter of the plug-in body 1100. Similarly, the plug-in appendage 1200 is a variable diameter cylinder. The transverse outer dimension of the plug-in appendage 1200 can be considered as the outer diameter of the plug-in appendage 1200. In this embodiment, the outer diameter of the plug-in appendage 1200 gradually decreases from the first appendage end to the second appendage end, and the channel diameter of the appendage channel 1201 gradually decreases.

[0072] In the above embodiment, the plug-in body 1100 is a cylindrical body whose transverse outer dimensions can be represented by a diameter. The transverse outer dimensions of the plug-in body 1100 are represented by the outer diameter of the plug-in body 1100. The plug-in appendage 1200 is a variable diameter cylindrical body whose transverse outer dimensions can be represented by a diameter. The transverse outer dimensions of the plug-in appendage 1200 are represented by the outer diameter of the plug-in appendage 1200. Furthermore, if the plug-in body 1100 and the plug-in appendage 1200 are not circular cylinders but rather square cylinders, polygonal cylinders, or other irregular cylindrical structures, their transverse outer dimensions cannot be represented by diameters. However, the transverse outer dimensions can be used in a manner analogous to the concept of diameter, indicating the dimensions of the outer contour of such a cylindrical structure after a cross-section in the transverse direction, or what can be called the cross-sectional size.

[0073] Therefore, according to the above description and explanation, the lateral outer contour dimension of at least a part of the structure of the plug-in appendage 1200 is greater than the lateral outer contour dimension of the plug-in main body 1100, which means that at least a part of the structure of the plug-in appendage 1200 can protrude laterally relative to the plug-in main body 1100. The protruding part of the structure can enable the quick-heating inner plug-in 1000 to be in limited contact with the inner wall of the fluid main channel 2001 when assembled in the fluid main channel 2001, thereby being fixedly assembled at a predetermined position in the fluid main channel 2001.

[0074] For example, when the plug-in body 1100 is a cylinder and the plug-in appendage 1200 is a variable diameter cylinder, the outer diameter of the plug-in body 1100 is equal to the outer diameter of the second appendage end of the plug-in appendage 1200. At this time, except for the outer diameter of the second appendage end, the outer diameter of the remaining structure of the plug-in appendage 1200 is larger than the outer diameter of the plug-in body 1100, especially the outer diameter of the first appendage end is the largest. The first appendage end with the largest outer diameter can be used to limit the contact with the inner wall of the fluid main channel 2001.

[0075] Furthermore, if the plug-in body 1100 and the plug-in appendage 1200 are not circular cylinders, but rather square, polygonal, or other irregular cylindrical structures, in one embodiment, the transverse outer dimensions of the plug-in appendage 1200 can vary regularly from the first appendage end to the second appendage end, for example, gradually decreasing. Alternatively, the transverse outer dimensions can be set as needed, without a regular variation, and in contact with the inner wall of the main fluid channel 2001, which is not limited here.

[0076] As can be seen from the above, based on the design of the above-mentioned quick-heating insert 1000, when the quick-heating insert 1000 is set in the fluid main channel 2001, the plug-in appendage 1200 of the quick-heating insert 1000 can be in limited contact with the inner wall of the fluid main channel 2001. This limited contact enables the quick-heating insert 1000 to be positioned and assembled at a predetermined position of the fluid main channel 2001. For example, the plug-in appendage 1200 of the quick-heating insert 1000 is in limited contact with the inner wall of the fluid main channel 2001 through various methods such as snap-on limiting, adhesive limiting, and threaded connection limiting, which are not limited here.

[0077] Continue as Figure 1 and Figure 2 As shown, after the quick-heating insert 1000 is assembled in the main fluid channel 2001, since the lateral outer contour of at least a part of the structure of the insert appendage 1200 is larger than the lateral outer contour of the insert body 1100, the insert appendage 1200 is in limited contact with the inner wall of the channel of the main fluid channel 2001, while the insert body 1100 does not contact the inner wall of the channel of the main fluid channel 2001, thereby creating a drainage gap 2002 between the insert body 1100 of the quick-heating insert 1000 and the inner wall of the channel of the main fluid channel 2001. The drainage channel 1202 of the insert appendage 1200 connects the drainage gap 2002 and the appendage channel 1201 of the insert appendage 1200, thereby allowing the drainage operation of the fluid from the appendage channel 1201 to the drainage gap 2002 with the help of the drainage channel 1202.

[0078] like Figure 6 and Figure 7 As shown, the drainage channel 1202 is opened on the side wall of the plug-in appendage 1200, and the number of the drainage channels 1202 can be set to a plurality according to the needs, and the plurality of drainage channels 1202 are distributed on the side wall of the plug-in appendage 1200 along the circumferential direction of the appendage channel 1201. In one embodiment, for example, see Figure 9 As shown, a ring 1200a is defined on the plug-in appendage 1200, and the ring 1200a surrounds the central axis of the plug-in body 1100. The diameter of the ring 1200a is larger than the outer diameter of the plug-in body 1100, and a plurality of drainage channels 1202 are distributed on the side wall of the plug-in appendage 1200 along the distribution trajectory of the ring 1200a.

[0079] After the rapid-heating insert 1000 is installed within the main fluid channel 2001, if consumables pass through the main fluid channel 2001, the heating element 8000 will increase the temperature within the main fluid channel 2001, thereby heating and melting the consumables passing through the main fluid channel 2001, causing the outer layer of the consumable material to be heated and softened. Therefore, after passing through the rapid-heating insert 1000, the consumable material with a softened outer layer will first enter the appendage channel 1201. The channel size (e.g., channel diameter) of the appendage channel 1201 is smaller than that of the main fluid channel 2001. This causes the softened outer layer of material to be peeled off and then drained along the drainage channel 1202 of the rapid-heating insert 1000 into the drainage gap 2002.

[0080] The inner core of the material, stripped of its outer layer, continues to enter the main channel 1101 under the driving force, advancing toward the nozzle element 5000. As the outer layer of the material is stripped away, the diameter of the inner core becomes smaller. As the material core continues to heat within the main channel 1101, it can be melted more quickly and efficiently into molten material for printing. Simultaneously, the outer layer of the material that has entered the fluid gap continues to be heated and melted. Since it has already been softened, further heating and melting at this point will also accelerate and more efficiently melt the material into molten material for printing.

[0081] As can be seen from the above, when the above-mentioned fast-heating insert 1000 is assembled in the main fluid channel 2001 of the nozzle body 2000, two flow paths will be formed between the fast-heating insert 1000 and the nozzle body 2000. One flow path is the flow path composed of the appendage channel 1201, the drainage channel 1202 and the drainage gap 2002, which is mainly used to peel off the softened outer layer of the material to expose the inner core of the material. The other flow path is the flow path composed of the appendage channel 1201 and the main channel 1101, which is mainly used to heat and melt the inner core of the material faster and more efficiently under the condition of smaller diameter and shorter heating distance, thereby improving the melting efficiency of the consumables.

[0082] Continue reading Figures 6 to 17 In the six embodiments of the quick-heating interposer 1000 shown, the difference between the quick-heating interposer 1000 of each embodiment is that, Figure 6 and Figure 7 In the illustrated embodiment, the rapid-heating insert 1000 further includes a heat-conducting element 1300, which is disposed on the insert attachment 1200. The heat-conducting element 1300 transfers heat, so when the consumable material comes into contact with the heat-conducting element 1300, it is heated and softened. Simultaneously, the softened consumable material also comes into contact with the heat-conducting element 1300 over a larger area, thereby increasing the contact area of ​​the consumable material for heating and improving the melting efficiency of the consumable material.

[0083] In one embodiment, the thermal conductive element 1300 can be configured as a columnar element, which can be a circular cylinder, an elliptical cylinder, a square cylinder, etc., without limitation. The number of thermal conductive elements 1300 can be set as needed, with multiple thermal conductive elements 1300 distributed along the sidewall of the plug-in appendage 1200 along the circumference of the appendage channel 1201. Each thermal conductive element 1300 can be positioned along the inner wall of the plug-in appendage 1200 along the channel direction of the appendage channel 1201, such that one end of the thermal conductive element 1300 is connected to the inner wall of the plug-in appendage 1200, while the other end of the thermal conductive element 1300 is in a disconnected, suspended state, away from the plug-in appendage 1200.

[0084] like Figure 8 and Figure 9 In the embodiment shown, the quick-heat insert 1000 may not be provided with a heat-conducting element 1300, but the diameter of the main channel 1101 may be designed to be, for example, Figure 6 and Figure 7 The main body channel 1101 of the quick-heating insert 1000 shown in the figure has a smaller channel diameter. Therefore, the two embodiments can be used in combination in stages. Figure 6 and Figure 7 After coming out of the quick-heat insert 1000 shown in FIG. Figure 8 and Figure 9 The above-mentioned softening and peeling process of the outer layer of the material is repeated in the appendage channel 1201 shown. Figure 10 and Figure 11 As shown, compared to Figure 8 and Figure 9 The main body channel 1101 of the quick-heating interposer 1000 shown is also designed to have a smaller channel diameter.

[0085] At this time, see Figure 1 As shown, the fluid main channel 2001 of the nozzle body 2000 can be equipped with Figures 6 to 11 Three different embodiments of the fast-heating insert 1000 are shown, and the three different fast-heating inserts 1000 are evenly positioned and assembled in the main fluid channel 2001. Along the fluid flow direction of the main fluid channel 2001, the channel diameters of the appendage channels 1201 of the insert appendages 1200 of the three fast-heating inserts 1000 gradually decrease.

[0086] In such Figure 1In the illustrated embodiment, the outer layer of the consumable material is heated and softened as it passes through the main fluid channel 2001. After entering the appendage channel 1201 of the first rapid-heating insert 1000, the softened outer layer is peeled off and can be directed along the drainage channel 1202 of the first rapid-heating insert 1000 into the drainage gap 2002 surrounding the first rapid-heating insert 1000. The inner core of the material, stripped of its outer layer, continues to enter the main channel 1101 under the driving force, advancing in the direction of motion.

[0087] The material core formed after passing through the first rapid-heating insert 1000 will continue to pass through the second rapid-heating insert 1000. The second rapid-heating insert 1000 has a smaller size. Therefore, the material core will repeat the above process after entering the second rapid-heating insert 1000. That is, after entering the appendage channel 1201 of the second rapid-heating insert 1000, the softened outer layer of the material is peeled off and drained along the drainage channel 1202 of the second rapid-heating insert 1000 into the drainage gap 2002 around the second rapid-heating insert 1000. The consumable core with the outer layer of the material peeled off by the second rapid-heating insert 1000 will continue to enter the main channel 1101 under the driving force and move forward in the direction of movement.

[0088] After the inner core of the second-stage material continues to enter the third quick-heating insert 1000, the process of the outer layer of the material being peeled off and drained to the drainage gap 2002 is repeated. Figure 1 In the embodiment shown, three quick-heating inserts 1000 are provided. However, those skilled in the art can set more than three quick-heating inserts 1000 according to actual needs. Depending on the number of quick-heating inserts 1000, the process of peeling off the outer layer of the material and draining it to the drainage gap 2002 can be repeated a corresponding number of times, which is not limited here.

[0089] like Figure 12 and Figure 13 In the embodiment shown, the fourth fast-heating insert 1000 can be provided with a plurality of heat-conducting elements 1300. The difference is that the drainage channel 1202 of the fourth fast-heating insert 1000 is opened on the side walls of the insert attachment 1200 and the insert main body 1100. That is, the drainage channel 1202 is not only opened on the side walls of the insert attachment 1200, but also extends to the side walls of the insert main body 1100, thereby expanding the opening area and opening region of the drainage channel 1202. Figure 14 and Figure 15 In the embodiment shown, the fifth rapid heating interposer 1000 has a similar structural design to the fourth rapid heating interposer 1000, except that the fifth rapid heating interposer 1000 is smaller in size and is used as the next level interposer of the fourth rapid heating interposer 1000. Figure 16 and Figure 17In the embodiment shown, the structural design difference between the sixth rapid heating insert 1000 and the fifth rapid heating insert 1000 is that the heat conducting element 1300 is not provided. At the same time, the size of the sixth rapid heating insert 1000 is also smaller, and it is used as the next-level insert of the fifth rapid heating insert 1000.

[0090] At this time, if Figure 2 As shown, the fluid main channel 2001 of the nozzle body 2000 can be equipped with Figures 12 to 17 Three different embodiments of the fast-heating insert 1000 are shown, and the three different fast-heating inserts 1000 are evenly positioned and assembled in the main fluid channel 2001. Along the fluid flow direction of the main fluid channel 2001, the channel diameters of the appendage channels 1201 of the insert appendages 1200 of the three fast-heating inserts 1000 gradually decrease.

[0091] In such Figure 2 In the illustrated embodiment, the outer layer of the consumable material is heated and softened as it passes through the main fluid channel 2001. After entering the appendage channel 1201 of the fourth rapid-heating insert 1000, the softened outer layer is peeled off and can be directed along the drainage channel 1202 of the fourth rapid-heating insert 1000 into the drainage gap 2002 surrounding the fourth rapid-heating insert 1000. The inner core of the material, stripped of its outer layer, continues to enter the main channel 1101 under the driving force, advancing in the direction of motion.

[0092] The material core formed after passing through the fourth rapid-heating insert 1000 will continue to pass through the fifth rapid-heating insert 1000. The fifth rapid-heating insert 1000 has a smaller size. Therefore, the material core will repeat the above process after entering the fifth rapid-heating insert 1000. That is, after entering the appendage channel 1201 of the fifth rapid-heating insert 1000, the softened outer layer of the material is peeled off and drained along the drainage channel 1202 of the fifth rapid-heating insert 1000 into the drainage gap 2002 around the fifth rapid-heating insert 1000. The second-stage material core, with the outer layer of the material peeled off, will continue to enter the main channel 1101 under the driving force and move forward in the direction of movement.

[0093] After the second-stage material core continues to enter the sixth quick-heating insert 1000, the above-mentioned process of the outer layer of the material being peeled off and drained to the drainage gap 2002 is repeated. Figure 2 In the embodiment shown, three quick-heating inserts 1000 are provided. However, those skilled in the art may set more than three quick-heating inserts 1000 according to actual needs. Depending on the number of quick-heating inserts 1000, the above-mentioned process of peeling off the outer layer of the consumable and draining it to the drainage gap 2002 may be repeated a corresponding number of times, which is not limited here.

[0094] Continue reading Figure 2 or Figure 3 As shown in one embodiment, a preheating channel 3001 with two through-holes may be opened inside the preheating element 3000. The preheating element 3000 is disposed in the main fluid channel 2001 of the nozzle body 2000, and the preheating channel 3001 is connected to the main fluid channel 2001. Figures 18 to 20 As shown, the inner wall of the preheating channel 3001 can be designed with recessed structures such as strip grooves to increase the contact area with the consumables. Those skilled in the art can design this as needed, and this is not limited here. The throat element 4000 has a throat channel 4001 extending through it at both ends. The throat element 4000 is connected to the inlet end of the nozzle body 2000, and the throat channel 4001 is connected to the main fluid channel 2001. The nozzle element 5000 has a nozzle channel 5001 extending through it at both ends. The nozzle element 5000 is connected to the outlet end of the nozzle body 2000, and the nozzle channel 5001 is connected to the main fluid channel 2001.

[0095] The heat dissipation element 6000 is connected to the throat element 4000, and the heat dissipation element 6000 does not contact the nozzle body 2000. For example, the heat dissipation element 6000 can be configured as a cylinder and connected to the throat element 4000 by being sleeved on the outside of the throat element 4000. The connecting element 7000 can also be configured as a cylinder and sleeved on the outside of the throat element 4000, so that the throat element 4000 can be connected to the nozzle body 2000 through the connecting element 7000.

[0096] This application provides a 3D printer comprising the aforementioned rapid heating insert 1000 or the aforementioned nozzle. Since the specific structure, operating principle, and technical effects of the rapid heating insert 1000 and the aforementioned nozzle have been described in detail previously, they will not be further elaborated here. Any technical details regarding the rapid heating insert 1000 and the aforementioned nozzle can be referred to the aforementioned description.

[0097] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0098] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A fast-heating inner plug-in unit, characterized in that: The quick-heating inner plug-in comprises: The plug-in body has a first main body end and a second main body end facing oppositely, and a main body passage is defined inside the plug-in body and passes through the first main body end and the second main body end; A plug-in appendage, the plug-in appendage having a first appendage end and a second appendage end facing oppositely, an appendage passage extending through the first appendage end and the second appendage end, the first main body end of the plug-in main body being connected to the second appendage end of the plug-in appendage, and the appendage passage communicating with the main body passage; The transverse outer contour dimension of at least a part of the structure of the plug-in appendage is larger than the transverse outer contour dimension of the plug-in main body, and the side wall of the quick-heating inner plug-in is provided with at least one drainage channel penetrating the wall surface.

2. The rapid heating inner plug-in according to claim 1, characterized in that: In the direction from the first appendage end to the second appendage end, the transverse outer contour size of the plug-in appendage gradually decreases, and the side wall of the plug-in appendage is provided with at least one drainage channel penetrating the wall surface thereof.

3. The rapid heating inner component according to claim 2, characterized in that The plug-in body is a cylinder, and the transverse outer contour dimension of the plug-in body is configured as the outer diameter of the plug-in body; and / or, The plug-in appendage is a variable diameter cylinder, and the transverse outer contour dimension of the plug-in appendage is configured as the outer diameter of the plug-in appendage. In the direction from the first appendage end to the second appendage end, the outer diameter of the plug-in appendage gradually decreases, and the channel diameter of the appendage channel gradually decreases.

4. The rapid heating inner component according to claim 3, characterized in that The outer diameter of the plug-in body is equal to the outer diameter of the second appendage end of the plug-in appendage; and / or, The number of the drainage channels is set to be several, and the several drainage channels are distributed on the side wall of the plug-in appendage along the circumferential direction of the appendage channel.

5. The rapid heating inner component according to claim 4, characterized in that: The plug-in appendage is defined with a circular ring surrounding the central axis of the plug-in body. The diameter of the circular ring is larger than the outer diameter of the plug-in body. The plurality of drainage channels are distributed on the side wall of the plug-in appendage along the trajectory of the circular ring.

6. The rapid heating inner component according to claim 1, characterized in that The quick-heating inner plug-in comprises: A heat-conducting element is provided on the plug-in attachment.

7. The rapid heating inner component according to claim 6, characterized in that The heat-conducting element is a columnar element, and the number of the heat-conducting elements is set to be several, and the several heat-conducting elements are distributed on the side wall of the plug-in appendage along the circumferential direction of the appendage channel; Each of the heat-conducting elements is arranged on the inner wall of the plug-in appendage along the channel direction of the appendage channel, wherein one end of the heat-conducting element is connected to the inner wall of the plug-in appendage, and the other end of the heat-conducting element is in a non-connected suspended state along a direction away from the plug-in appendage.

8. A nozzle, characterized in that: The nozzle comprises: A nozzle body, wherein a main fluid passage with two ends extending therethrough is formed inside the nozzle body; The fast-heating inner plug-in according to any one of claims 1 to 7, wherein the fast-heating inner plug-in is arranged in the main fluid channel, wherein the plug-in appendage of the fast-heating inner plug-in is in limited contact with the inner wall of the channel of the main fluid channel, and a drainage gap is present between the plug-in body of the fast-heating inner plug-in and the inner wall of the channel of the main fluid channel, and the drainage channel of the plug-in appendage connects the drainage gap and the appendage channel of the plug-in appendage.

9. The nozzle according to claim 8, characterized in that The number of the quick-heating inner plug-ins is set to be several, and along the fluid flow direction of the fluid main channel, the channel diameters of the appendage channels of the plug-in appendages of the several quick-heating inner plug-ins gradually decrease.

10. The nozzle according to claim 8, characterized in that The nozzle comprises: A preheating element, wherein a preheating channel with two ends extending therethrough is provided inside the preheating element, the preheating element is arranged in the main fluid channel of the nozzle body, and the preheating channel is in communication with the main fluid channel; and / or, A throat element, wherein a throat passage is formed inside the throat element and is connected to the inlet end of the nozzle body, and the throat passage is connected to the main fluid passage; and / or, A nozzle element is provided with a nozzle channel with two ends extending therethrough, the nozzle element is connected to the outlet end of the nozzle body, and the nozzle channel is communicated with the main fluid channel.

11. A 3D printer, characterized in that: The 3D printer includes: The fast-heating inner plug-in according to any one of claims 1 to 7; or The nozzle according to any one of claims 8 to 10.

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