Multi-dimensional printing assembly, hot end, extruder and multi-dimensional printing equipment

Abstract

The utility model discloses a multi-dimensional printing assembly, a hot end, an extruder and multi-dimensional printing equipment. The multi-dimensional printing assembly comprises an extruder and at least two hot ends, a feeding channel is formed in the extruder, an installation area is arranged on the extruder, discharging channels are formed in the hot ends, the discharging channels of the different hot ends are used for containing different materials, and each hot end is provided with an adapting part used for being matched with the installation area. The mounting area is detachably connected with the at least two matching parts respectively, so that the feeding channel of the extruder is alternately communicated with the discharging channels of the at least two hot ends, and the extruder can convey different materials into the discharging channels of the different hot ends. Through the mode, the cost of multi-dimensional printing and the waste of materials can be reduced, and the cost and the waste of the materials can be in a relatively balanced state.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of multi-dimensional printing, in particular to a multi-dimensional printing assembly, a hot end, an extruder and a multi-dimensional printing device. BACKGROUND

[0002] Multi-dimensional printing, such as two-dimensional (2D), three-dimensional (3D), four-dimensional (4D) printing, refers to the use of a single or multiple materials to print complex geometric models. Multi-dimensional printing, also known as additive manufacturing, is a technology that builds three-dimensional objects by layering materials. Unlike traditional subtractive manufacturing (such as cutting, milling, etc.), multi-dimensional printing starts from a computer model and gradually accumulates materials to build objects. This technology has a wide range of applications and has been applied in many fields, including manufacturing, medicine, construction, art and education.

[0003] In the process of 3D printing, different materials are often needed. In the prior art, multiple tool heads are generally provided, each tool head corresponding to one material to meet the needs of using different materials, but this will result in high costs. Alternatively, a tool head can be used to switch between materials to meet the needs of different materials. This method does not require multiple tool heads, so it can reduce costs, but it results in high material waste. CONTENT OF THE INVENTION

[0004] The present application provides a multi-dimensional printing assembly, a hot end, an extruder and a multi-dimensional printing device, which can reduce the cost of multi-dimensional printing and material waste, and keep the cost and material waste in a relatively balanced state.

[0005] The present application provides a multi-dimensional printing assembly, comprising:

[0006] An extruder, the extruder is formed with a feeding channel, and the extruder is provided with a mounting area;

[0007] At least two different hot ends, each of the hot ends is formed with a discharging channel, the discharging channels of the different hot ends are used to accommodate different materials, each of the hot ends is provided with a matching part adapted to the mounting area, and the mounting area and the at least two matching parts are respectively detachably connected, so that the feeding channel of the extruder and the discharging channels of the at least two hot ends are alternately communicated, and then the extruder can deliver different materials into the discharging channels of the different hot ends.

[0008] By adopting the technical scheme, the connecting portions of different hot ends can be respectively detachably connected to the mounting area of the extruder, and the discharge channels of different hot ends are used to contain different materials, so that the extruder can deliver different materials into the discharge channels of different hot ends by replacing the hot end connected to the extruder, and the use of different materials is realized. That is, the present application is provided with at least two hot ends, and the extruder can be detachably connected to the at least two hot ends, so that the material feeding channel of the extruder can be alternately communicated with the discharge channels of different hot ends to deliver different materials into the discharge channels of different hot ends, without replacing the entire multi-dimensional printing assembly to meet the demand of using different materials, which is beneficial to reducing the cost of multi-dimensional printing.

[0009] In an embodiment of the present application, the extruder comprises a body and a connecting piece, the connecting piece is arranged in the mounting area, and the connecting piece can be switched between a first state and a second state. In the first state, the connecting piece fixedly connects the hot end and the body, and in the second state, the hot end is movable relative to the body.

[0010] By adopting the technical scheme, when the connecting piece is in the first state, the hot end and the body are fixedly connected, the connection between the hot end and the extruder is realized, and the stable communication between the material feeding channel of the extruder and the discharge channel of the hot end is ensured. When a new hot end needs to be replaced, the connecting piece is in the second state, at this time, the current hot end can be moved relative to the body, that is, the current hot end can be detached from the extruder, and then a new hot end is arranged in the mounting area, and the connecting piece is again in the first state, so that the new hot end is fixedly connected to the extruder.

[0011] In an embodiment of the present application, the connecting portion has a magnetic piece, and the connecting piece comprises an electromagnet. In the first state, the electromagnet is powered and adsorbs the magnetic piece, and in the second state, the electromagnet is powered off, and the magnetic piece can be separated from the electromagnet.

[0012] By adopting the technical scheme, when the hot end and the extruder need to be connected, the connecting piece is in the first state, that is, the electromagnet is in the powered state, at this time, the electromagnet generates a magnetic attraction force to adsorb the magnetic piece of the connecting portion, so that the magnetic piece and the electromagnet are connected together, and the connection between the hot end and the extruder through the connecting piece is realized. When the hot end needs to be detached from the extruder, the connecting piece is in the second state, that is, the electromagnet is in the powered-off state, at this time, the electromagnet loses the magnetic attraction force, and the electromagnet no longer adsorbs the magnetic piece of the connecting portion, so that the connecting portion can move relative to the electromagnet, that is, the hot end can move relative to the extruder. That is, the present application can realize the connection between the hot end and the extruder through the cooperation of the electromagnet and the magnetic piece, which is simple in structure, and the connection between the hot end and the extruder can be controlled by controlling the powered state of the electromagnet, which is simple and convenient.

[0013] In an embodiment of the present application, the multi-dimensional printing assembly further comprises a control assembly connected with the electromagnet, and the control assembly is configured to control the electromagnet to switch between the energized state and the de-energized state.

[0014] The control assembly is connected to the body, and the control assembly and the mounting area are spaced apart.

[0015] By adopting the above technical solution, the energized state of the electromagnet can be controlled by the control assembly, and the connecting piece can be switched between the first state and the second state by the control assembly. At the same time, the control assembly and the mounting area are spaced apart, which can avoid the control assembly from occupying the space of the mounting area, prevent the control assembly from interfering with the hot end, and ensure that the hot end can be smoothly mounted in the mounting area.

[0016] In an embodiment of the present application, the adapter portion is formed with a mounting groove, and the magnetic member is arranged in the mounting groove.

[0017] By adopting the above technical solution, the mounting groove can limit the magnetic member, improving the installation stability of the magnetic member. Moreover, the magnetic member is installed by using the mounting groove, and at least part of the magnetic member is located in the mounting groove, which can effectively reduce the protruding length of the magnetic member from the adapter portion, and is beneficial to simplify the structure of the hot end.

[0018] In an embodiment of the present application, the adapter portion is further formed with a notch in communication with the mounting groove.

[0019] By adopting the above technical solution, by providing the notch in communication with the mounting groove, when the magnetic member is installed, the notch can provide a space for avoiding interference, so as to facilitate the installation of the magnetic member in the mounting groove, improving the installation convenience of the magnetic member; when the magnetic member is removed, an external force can be applied to the magnetic member through the notch, so that the magnetic member is separated from the mounting groove, improving the convenience of removing the magnetic member.

[0020] In an embodiment of the present application, the connecting piece comprises a first clamping structure, and the hot end is formed with a second clamping structure; in the first state, the first clamping structure and the second clamping structure are clamped and matched to fix the hot end and the body.

[0021] By adopting the above technical solution, when the hot end and the body need to be connected, the first clamping structure and the second clamping structure are connected together through the clamping and matching of the first clamping structure and the second clamping structure, and then the hot end and the body are fixedly connected together, realizing the clamping connection of the hot end and the extruder. When the hot end needs to be removed, the first clamping structure and the second clamping structure are separated from each other, the hot end can move relative to the body, and then the hot end can be removed, so that the hot end can be detachably connected to the extruder, and the hot end is convenient to disassemble and assemble.

[0022] In an embodiment of the present application, the extruder is provided with a connecting end for connecting with the hot end, the mounting area comprises a mounting space formed in the connecting end of the extruder, the adapter is shaped to fit the mounting space, and the adapter is accommodated in the mounting space.

[0023] By adopting the above technical solution, the mounting space is formed in the connecting end of the extruder, and the hot end shaped to fit the mounting space can be arranged in the mounting space, thereby ensuring that the hot end can be connected with the extruder.

[0024] In an embodiment of the present application, the connecting end comprises a first connecting part and a second connecting part connected in sequence, the first connecting part extends along a first direction, the second connecting part extends along a second direction, the first direction intersects the second direction, and the mounting space is formed between the first connecting part and the second connecting part.

[0025] By adopting the above technical solution, the first end of the first connecting part is connected with the first end of the second connecting part, the second end of the first connecting part extends along the first direction, the second end of the second connecting part extends along the second direction, and the extension direction of the second end of the first connecting part and the extension direction of the second end of the second connecting part have an included angle greater than 0°, so that the mounting space is formed between the second end of the first connecting part and the second end of the second connecting part, and the hot end can be accommodated in the mounting space.

[0026] In an embodiment of the present application, the multi-dimensional printing assembly further comprises at least one positioning member, the positioning member is arranged in the mounting area, and the positioning member is used for positioning the adapter so that the adapter cooperates with the mounting area.

[0027] By adopting the above technical solution, the positioning member can position the adapter of the hot end, so that the adapter of the hot end can be smoothly cooperated with the mounting area of the extruder, thereby realizing the connection and cooperation of the hot end and the extruder.

[0028] In an embodiment of the present application, the positioning member is connected to the extruder, a first guide surface is formed at one end of the positioning member away from the extruder, and the first guide surface is used for guiding the adapter to cooperate with the positioning member.

[0029] By adopting the above technical solution, the first guide surface can guide the adapter to cooperate with the positioning member, so as to facilitate the positioning member to position the adapter of the hot end.

[0030] In an embodiment of the present application, the adapter is formed with a positioning hole, and the positioning member can be inserted into the positioning hole to position the adapter.

[0031] By adopting the above technical solution, the positioning hole shaped to fit the positioning member is formed in the adapter, so that the positioning member can be inserted into the adapter to position the adapter.

[0032] In an embodiment of the present application, a second guide surface is formed at the opening of the positioning hole, and the second guide surface is used to guide the positioning member to be inserted into the positioning hole.

[0033] By using the above technical solution, when the hot end is installed in the installation area, the second guide surface can guide the positioning member to be inserted into the positioning hole, so that the positioning member can be smoothly and quickly matched with the positioning hole to realize the positioning of the hot end.

[0034] In an embodiment of the present application, the caliber of the nozzles of different hot ends is the same.

[0035] By using the above technical solution, different hot ends can be detachably connected to the extruder, so that different materials can be printed by replacing different hot ends, which can meet different needs of the multi-dimensional printing process without replacing the entire multi-dimensional printing assembly, thereby reducing the cost of multi-dimensional printing.

[0036] In an embodiment of the present application, at least one of the feeding channel and the discharging channel is a straight channel.

[0037] By using the above technical solution, the feeding channel and / or the discharging channel is set as a straight channel, so that the material is not easy to be blocked when moving in the feeding channel and / or the discharging channel.

[0038] In an embodiment of the present application, the hot end comprises a heating portion and a nozzle connected in sequence, and the discharging channel comprises a first channel formed in the heating portion, and the first channel is communicated with the nozzle and the feeding channel.

[0039] By using the above technical solution, the feeding channel and the nozzle are communicated through the first channel of the heating portion, so that the material can enter the first channel through the feeding channel, and the heating portion can heat the material in the first channel at this time, so that the material is at a preset temperature, and then the material is sprayed out through the nozzle.

[0040] In an embodiment of the present application, the hot end further comprises a heat dissipation portion, the heat dissipation portion, the heating portion and the nozzle are connected in sequence, and the discharging channel further comprises a second channel formed in the heat dissipation portion, and the second channel is communicated with the first channel.

[0041] By adopting the technical scheme, the length of the second channel is S1. The length of the first channel is S2. By arranging the at least two hot ends, when different materials need to be used, the hot ends can be directly replaced. At this time, only the material in the second channel will be wasted, that is, the length of the waste material generated by the application is S1, so that the material waste is effectively reduced. Moreover, because the melting temperatures of various materials are different, if the material is switched from high temperature to low temperature, for example, the material is switched from a material with a melting temperature of 250° to a material with a melting temperature of 200°, the existing technology adopts a tool head to switch the feed, which can cause the 250° material to be blocked in the same hot end. However, the application can avoid this problem by replacing the hot end, thereby meeting the working conditions of multi-material and multi-temperature printing and multi-hot-end nozzle aperture printing.

[0042] In an embodiment of the application, the heat dissipation part includes a heat dissipation frame and a heat dissipation body, the heat dissipation body is installed on the heat dissipation frame, the heat dissipation frame is formed with a connecting hole, the first end of the heating part is connected with the heat dissipation body, and the second end of the heating part penetrates through the connecting hole and protrudes from the heat dissipation frame.

[0043] By adopting the technical scheme, the heat dissipation frame is formed with a connecting hole, so that the heating part can be connected with the heat dissipation body through the connecting hole and the heat dissipation body, thereby improving the connection convenience of the heating part and the heat dissipation part. Meanwhile, after the first end of the heating part is connected with the heat dissipation body, the second end of the heating part can penetrate through the connecting hole and protrude from the heat dissipation frame, so that the second end of the heating part can protrude from the heat dissipation part, thereby facilitating the connection of the heating part and the nozzle. Moreover, the connecting hole can also limit and guide the heating part, thereby facilitating the alignment of the second channel and the first channel.

[0044] In an embodiment of the application, the heating part is detachably connected with the heat dissipation frame.

[0045] By adopting the technical scheme, the heating part is detachably connected with the heat dissipation frame, so that the heating part can be disassembled relative to the heat dissipation part, thereby facilitating the replacement of the heating part or the heat dissipation part when the heating part or the heat dissipation part fails. Meanwhile, when the second channel of the heat dissipation part and the first channel of the heating part are cleaned, the heating part can be disassembled, thereby facilitating the cleaning of the second channel and the first channel.

[0046] Correspondingly, the application also provides a multi-dimensional printing assembly for printing the same material, which comprises:

[0047] An extruder is formed with a feeding channel, and the extruder is provided with a mounting area;

[0048] At least two hot ends are formed with discharge channels, the discharge channels of each of the hot ends have different diameters, the discharge channels of different hot ends are used to accommodate the same material, each of the hot ends is provided with a matching part for matching the mounting area, and the mounting area is detachably connected with the matching parts of the at least two hot ends, so that the feeding channel of the extruder is alternately communicated with the discharge channels of the at least two hot ends, and then the extruder can deliver the same material into the discharge channels of the hot ends with different diameters.

[0049] By adopting the technical scheme, the matching parts of different hot ends can be detachably connected with the mounting area of the extruder, and the diameters of the discharge channels of different hot ends are different, so that the discharge diameters of the multi-dimensional printing assembly can be changed by replacing the hot ends connected with the extruder, different requirements for the discharge diameters in the multi-dimensional printing process are met, the whole multi-dimensional printing assembly does not need to be replaced, and the cost of multi-dimensional printing is reduced. That is, the same material can be accommodated in the hot ends with different diameters to meet the working condition of printing together by the multi-hot-end nozzle with different diameters.

[0050] Correspondingly, the application also provides a hot end, which is formed with a discharge channel for accommodating material, and is provided with a matching part for matching a mounting area of an extruder. The matching parts of different hot ends are detachably connected with the mounting area, so that the feeding channel of the extruder is communicated with the discharge channel of the hot end, and then the extruder can deliver the material into the discharge channel of the hot end.

[0051] By adopting the technical scheme, the matching parts of different hot ends can be detachably connected with the mounting area of the extruder, and the diameters of the discharge channels of different hot ends are different, so that the discharge diameters of the multi-dimensional printing assembly can be changed by replacing the hot ends connected with the extruder, different requirements for the discharge diameters in the multi-dimensional printing process are met, the whole multi-dimensional printing assembly does not need to be replaced, and the cost of multi-dimensional printing is reduced. That is, the same material can be accommodated in the hot ends with different diameters to meet the working condition of printing together by the multi-hot-end nozzle with different diameters.

[0052] In an embodiment of the application, the hot end comprises a heating part and a nozzle connected in sequence, and the discharge channel comprises a first channel formed in the heating part, and the first channel communicates the nozzle and the feeding channel.

[0053] By adopting the technical scheme, the first channel of the heating part is communicated with the feeding channel and the nozzle, so that the material can enter the first channel through the feeding channel, the heating part can heat the material in the first channel at this time, and the material is at a preset temperature, and then the material is sprayed out through the nozzle.

[0054] Correspondingly, the application further provides an extruder, which is formed with a feeding channel, and is provided with a mounting area, the mounting area is adapted to the mating part of the hot end, the mating part is detachably connected to the mounting area, so that the feeding channel of the extruder is communicated with the discharging channel of the hot end, and then the extruder can deliver the material into the discharging channel of the hot end.

[0055] By adopting the technical scheme, the mating part of different hot ends can be detachably connected to the mounting area of the extruder, different hot ends can provide different requirements, for example, different hot ends can accommodate different materials, the caliber of the discharging channel of different hot ends is different, etc. Then, by replacing the hot end connected to the extruder, different requirements in the multi-dimensional printing process can be met. That is to say, by providing at least two different hot ends and detachably connecting the extruder with the at least two hot ends, the feeding channel of the extruder can be communicated with the discharging channel of different hot ends, that is, the extruder can be used in cooperation with different hot ends to meet different requirements in the multi-dimensional printing process, without replacing the entire multi-dimensional printing assembly, which is beneficial to reducing the cost of multi-dimensional printing.

[0056] In an embodiment of the application, the extruder comprises a body and a connecting piece, the connecting piece is arranged in the mounting area, and the connecting piece can be switched between a first state and a second state, wherein, in the first state, the connecting piece fixedly connects the hot end and the body, and in the second state, the hot end can move relative to the body.

[0057] By adopting the technical scheme, by making the connecting piece in the first state, the hot end and the body are fixedly connected, the connection between the hot end and the extruder is realized, and stable communication between the feeding channel of the extruder and the discharging channel of the hot end is ensured; when a new hot end needs to be replaced, the connecting piece is in the second state, at this time, the current hot end can move relative to the body, that is, the current hot end can be detached from the extruder, and then a new hot end is arranged in the mounting area, and the connecting piece is again in the first state, so that the new hot end is fixedly connected with the extruder.

[0058] Correspondingly, the application further provides a multi-dimensional printing device comprising the multi-dimensional printing assembly.

[0059] In an embodiment of the application, the multi-dimensional printing device further comprises a mounting seat, and the mounting seat detachably mounts the at least two hot ends.

[0060] By adopting the technical scheme, the mounting seat can be used to reserve the hot end, when the hot end connected with the extruder needs to be replaced, the hot end connected with the extruder can be disassembled and mounted to the mounting seat, and the new hot end at the mounting seat is taken off and connected with the extruder, so that the replacement of the hot end of the multi-dimensional printing assembly is completed, which is simple and convenient, and the mounting seat plays a role of storage for the hot end, and the storage of the unused hot end is facilitated.

[0061] In an embodiment of the present application, the multi-dimensional printing device further comprises a moving assembly, the moving assembly is movable between the mounting seat and the extruder, so as to alternately move different hot ends to the mounting area.

[0062] By adopting the technical scheme, the moving assembly can drive the hot end to move between the mounting seat and the extruder, so that the automatic movement of the hot end between the mounting seat and the extruder is realized without manual operation.

[0063] In an embodiment of the present application, the hot end has a connecting area matched with the moving assembly, and the connecting area of the moving assembly is detachably connected with at least two hot ends.

[0064] The multi-dimensional printing device further comprises a sensing piece, the sensing piece is arranged at the connecting area, and the sensing piece is used to detect the connection state of the moving assembly and the connecting area.

[0065] By adopting the technical scheme, the connecting area of the moving assembly and the hot end is detachably connected, when the hot end needs to be moved, the connecting area of the moving assembly and the hot end is connected together, when the hot end is moved to the mounting seat or the mounting area, i.e. the hot end does not need to be moved, the moving assembly and the hot end are disconnected. By arranging the sensing piece at the connecting area, the connection state of the moving assembly and the connecting area can be detected by the sensing piece, i.e. whether the moving assembly is connected with the connecting area of the hot end can be determined, when the hot end connected with the extruder is moved to the mounting seat by the moving assembly, if the sensing piece detects that the moving assembly and the connecting area are connected, the hot end can be moved relative to the extruder, so that the moving assembly drives the hot end to move, if the sensing piece has not detected that the moving assembly and the connecting area are connected, the hot end and the extruder are kept connected, so that the hot end is prevented from falling.

[0066] The present application has the following beneficial effects:

[0067] The different hot ends can be detachably connected to the mounting area of the extruder respectively, and the different hot ends can provide different requirements, for example, different hot ends can accommodate different materials or the diameters of the discharge channels of the different hot ends are different, and the like. Further, by replacing the hot ends connected to the extruder, different requirements in the multi-dimensional printing process can be met. That is, by arranging at least two different hot ends and detachably connecting the extruder to the at least two hot ends, the material feeding channel of the extruder can be in communication with the discharge channels of the different hot ends, that is, the extruder can be used in cooperation with different hot ends to meet different requirements in the multi-dimensional printing process, without replacing the entire multi-dimensional printing assembly, which is conducive to reducing the cost of multi-dimensional printing.

[0068] In the prior art, in the manner of providing a plurality of tool heads to meet the printing requirements of different materials, since each tool head includes an extruder and a hot end, one tool head needs to be replaced each time one material is printed, that is, one extruder and one hot end need to be replaced each time one material is printed. For example, if three materials need to be printed, three extruders and three hot ends need to be replaced. In the present application, if three materials need to be printed, only one extruder and three hot ends are needed, so that the requirement of using different materials can be met without replacing the entire multi-dimensional printing assembly, which is conducive to reducing the cost of multi-dimensional printing and the waste of materials, and enables the cost and the waste of materials to be in a relatively balanced state. BRIEF DESCRIPTION OF DRAWINGS

[0069] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0070] Figure 1 is a structural schematic diagram of the multi-dimensional printing assembly of the present application;

[0071] Figure 2 is one of the structural exploded schematic diagrams of the multi-dimensional printing assembly of the present application;

[0072] Figure 3 is the second structural exploded schematic diagram of the multi-dimensional printing assembly of the present application;

[0073] Figure 4 is one of the structural schematic diagrams of the hot end of the present application;

[0074] Figure 5 is the second structural schematic diagram of the hot end of the present application;

[0075] Figure 6 is the structural schematic diagram of the hot end of the present application Figure 5Structure enlarged schematic view at A in the middle;

[0076] Figure 7 Structure schematic view of the hot end of the present application, wherein the printing product is located below the nozzle;

[0077] Figure 8 Structure schematic view of the mounting base of the present application;

[0078] Figure 9 Structure schematic view of the hot end of the present application;

[0079] Figure 10 Structure exploded schematic view III of the multi-dimensional printing assembly of the present application.

[0080] Explanation of reference signs:

[0081] 1, extruder; 11, mounting area; 12, connecting end; 13, body; 14, connecting piece; 111, mounting space; 121, first connecting part; 122, second connecting part; 141, electromagnet; 142, first clamping structure; 143, second clamping structure;

[0082] 2, hot end; 21, matching part; 22, heat dissipation part; 23, heating part; 24, nozzle; 25, connecting area; 211, magnetic piece; 212, mounting groove; 213, notch; 214, positioning hole; 221, heat dissipation frame; 222, heat dissipation body; 2211, connecting hole;

[0083] 3, positioning piece; 31, first guide surface;

[0084] 4, mounting base;

[0085] 5, control assembly;

[0086] 6, sensing piece. DETAILED DESCRIPTION

[0087] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, the orientation words such as "upper", "lower", "left" and "right" generally refer to the upper, lower, left and right of the device in the actual use or working state, and specifically refer to the direction of the drawing surface in the drawings.

[0088] In the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "stacked" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0089] The present application provides a multi-dimensional printing assembly and a multi-dimensional printing device, which are described in detail below. It should be noted that the description order of the following embodiments is not limited as the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0090] According to the embodiments of the first aspect of the present application, referring to Figure 1 , Figure 2 and Figure 3 , a multi-dimensional printing assembly for printing different materials. The materials are divided into different materials according to their attributes. The attribute of the material can be the color of the material, the melting temperature of the material, and the material of the material. The multi-dimensional printing assembly comprises an extruder 1 and at least two hot ends 2, the extruder 1 is formed with a feeding channel, and the extruder 1 is provided with a mounting area 11.

[0091] The hot end 2 is formed with a discharge channel, and the discharge channels of different hot ends 2 are used to accommodate different materials. Each hot end 2 is provided with a matching part 21 adapted to the mounting area 11, and the mounting area 11 is detachably connected with at least two matching parts 21, so that the feeding channel of the extruder 1 and the discharge channels of the at least two hot ends 2 are alternately communicated, and then the extruder 1 can deliver different materials into the discharge channels of different hot ends 2.

[0092] According to the multi-dimensional printing component of this application embodiment, the mating parts 21 of different hot ends 2 can be detachably connected to the mounting area 11 of the extruder 1, and the discharge channels of different hot ends 2 are used to accommodate different materials. Therefore, by replacing the hot ends 2 connected to the extruder 1, the extruder 1 can transport different materials to the discharge channels of different hot ends 2, enabling the use of different materials. In other words, by providing at least two hot ends 2, and the extruder 1 being detachably connected to at least two hot ends 2, the feed channel of the extruder 1 can alternately communicate with the discharge channels of different hot ends 2, thereby enabling the transport of different materials to the discharge channels of different hot ends 2. This meets the needs of using different materials without replacing the entire multi-dimensional printing component, which helps reduce the cost of multi-dimensional printing. In existing technologies, where multiple tool heads are used to meet the printing needs of different materials, each tool head includes an extruder 1 and a hot end 2. Therefore, each time a different material is printed, a tool head must be replaced, meaning that an extruder 1 and a hot end 2 must be replaced each time a different material is printed. For example, if three materials need to be printed, then three extruders 1 and three hot ends 2 need to be replaced. However, in this application, if three materials need to be printed, only one extruder 1 and three hot ends 2 are needed. Thus, the need to use different materials can be met without replacing the entire multi-dimensional printing assembly, which helps to reduce the cost of multi-dimensional printing.

[0093] Understandably, the existing technology of using multiple tool heads to meet the needs of using different materials results in higher costs. If only one tool head is provided, when switching from material A to material B, the residual material A needs to be removed first, which will result in material waste.

[0094] In this application, as Figure 9 As shown, the hot end 2 includes a heat dissipation section 22 and a heating section 23 connected in sequence. The discharge channel includes a first channel formed in the heat dissipation section 22 and a second channel formed in the heating section 23, and the first channel and the second channel are connected. The length of the first channel is S1. The length of the second channel is S2. In the prior art, the method of switching the feed using a tool head requires discharging the remaining material in the hot end 2 each time, so the length of waste generated by this method is S = S1 + S2. In this application, the hot end 2 needs to be replaced separately when changing materials, and the material in the second channel of the hot end 2 is usually in a fluid state. Therefore, when replacing the hot end 2 separately in this application, it is only necessary to discharge the material in the first channel through the second channel. So, the length of waste generated each time a hot end 2 is replaced in this application is S1. Thus, the multidimensional printing component and multidimensional printing equipment of this application are beneficial to reducing the cost of multidimensional printing and the waste of materials, and make the cost and material waste relatively balanced.

[0095] It should be noted that, due to the different melting temperatures of various materials, if switching from a high-temperature material to a low-temperature material, for example, from a material with a melting temperature of 250° to a material with a melting temperature of 200°, the existing tool head switching feed mode will cause the 250° material to be blocked in the same hot end, and the hot end replacement mode of the present application can avoid this problem, meet the multi-material and multi-temperature simultaneous printing, and the multi-hot-end nozzle aperture printing working condition.

[0096] In some examples, the multi-dimensional printing is, for example, 3D printing.

[0097] In some embodiments, referring to Figure 1 , Figure 2 and Figure 3 , the extruder 1 comprises a body 13 and a connecting piece 14, the connecting piece 14 is arranged at the mounting area 11, and the connecting piece 14 can be switched between a first state and a second state, wherein in the first state, the connecting piece 14 fixedly connects the hot end 2 and the body 13, and in the second state, the hot end 2 is movable relative to the body 13.

[0098] It can be understood that by making the connecting piece 14 in the first state, the hot end 2 and the body 13 are fixedly connected, the connection between the hot end 2 and the extruder 1 is realized, and the stable communication between the feeding channel of the extruder 1 and the discharging channel of the hot end 2 is ensured; when a new hot end 2 needs to be replaced, the connecting piece 14 is in the second state, at this time the current hot end 2 can move relative to the body 13, that is, the current hot end 2 can be detached from the extruder 1, and then a new hot end 2 is arranged at the mounting area 11, and the connecting piece 14 is again in the first state, so that the new hot end 2 and the extruder 1 are fixedly connected.

[0099] It can be understood that arranging the connecting piece 14 at the mounting area 11 realizes the effective use of the space of the mounting area 11, which is conducive to the structural simplification of the multi-dimensional printing assembly. And the hot end 2 will be arranged at the mounting area 11, and the connecting piece 14 will also be arranged at the mounting area 11, so that when the hot end 2 is at the mounting area 11, the connecting piece 14 can be used to directly fix the hot end 2 and the extruder 1 together, improving the convenience of the connecting piece 14 in connecting the hot end 2 and the extruder 1, and thus facilitating the simplification of the structure of the connecting piece 14.

[0100] In some examples, the connecting piece 14 is, for example, a magnetic piece, a clamping piece or a pasting piece.

[0101] Exemplarily, the connecting piece 14 is a clamping piece, the clamping piece is fixedly connected to the body 13, and the clamping piece can be clamped with the hot end 2. Specifically, the hot end 2 is formed with a clamping groove matched with the clamping piece, the clamping groove of the hot end 2 is matched with the clamping piece, so that the clamping piece is clamped with the hot end 2, and the connection between the hot end 2 and the extruder 1 is achieved; when the hot end 2 is disassembled, a force away from the clamping piece is applied to the hot end 2 or a force away from the hot end 2 is applied to the clamping piece, so that the clamping piece is separated from the hot end 2, and the hot end 2 can be moved relative to the extruder 1.

[0102] In some embodiments, referring to Figure 1 、 Figure 2 and Figure 3 , the adapter 21 has a magnetic piece 211, and the connecting piece 14 includes an electromagnet 141, wherein in the first state, the electromagnet 141 is powered and adsorbs the magnetic piece 211, and in the second state, the electromagnet 141 is powered off, and the magnetic piece 211 can be separated from the electromagnet 141.

[0103] It can be understood that when it is required to keep the hot end 2 and the extruder 1 connected, the connecting piece 14 is in the first state, that is, the electromagnet 141 is in the powered state, at this time, the electromagnet 141 generates a magnetic attraction force to adsorb the magnetic piece 211 of the adapter 21, so that the magnetic piece 211 and the electromagnet 141 are connected together, and the connection between the hot end 2 and the extruder 1 through the connecting piece 14 is achieved. When it is required to disassemble the hot end 2 from the extruder 1, the connecting piece 14 is in the second state, that is, the electromagnet 141 is in the powered-off state, at this time, the electromagnet 141 loses the magnetic attraction force, and the electromagnet 141 no longer adsorbs the magnetic piece 211 of the adapter 21, so that the adapter 21 can move relative to the electromagnet 141, that is, the hot end 2 can move relative to the extruder 1. That is, the connection between the hot end 2 and the extruder 1 can be achieved through the cooperation of the electromagnet 141 and the magnetic attraction piece, the structure is simple, and the connection between the hot end 2 and the extruder 1 can be controlled by controlling the power-on state of the electromagnet 141, which is simple and convenient.

[0104] Specifically, referring to Figure 1 、 Figure 2 and Figure 3 , the multi-dimensional printing assembly further includes a control assembly 5, the control assembly 5 is connected with the electromagnet 141, and the control assembly 5 is used for controlling the electromagnet 141 to switch between the power-on state and the power-off state;

[0105] The control assembly 5 is connected to the body 13, and the control assembly 5 and the mounting area 11 are arranged in a spaced manner.

[0106] It can be understood that the energization state of the electromagnet 141 can be controlled through the control assembly 5, and then the connection piece 14 can be switched between the first state and the second state through the control assembly 5. Meanwhile, the control assembly 5 is arranged in a spaced manner with the mounting area 11, so that the control assembly 5 does not occupy the space of the mounting area 11, and interference between the control assembly 5 and the hot end 2 is prevented, and it is ensured that the hot end 2 can be smoothly mounted in the mounting area 11.

[0107] In some embodiments, referring to Figure 2 , Figure 5 and Figure 6 , the adapter 21 is formed with a mounting groove 212, and the magnetic piece 211 is arranged in the mounting groove 212. The mounting groove 212 can limit the magnetic piece 211, and the mounting stability of the magnetic piece 211 is improved. Moreover, the magnetic piece 211 is mounted by using the mounting groove 212, and at least part of the magnetic piece 211 is located in the mounting groove 212, so that the protruding length of the magnetic piece 211 protruding from the adapter 21 can be effectively reduced, and the structure of the hot end 2 is simplified.

[0108] In some examples, the side of the magnetic piece 211 away from the bottom wall in the mounting groove 212 is flush with the slot of the mounting groove 212, and the structural flatness of the hot end 2 is improved.

[0109] Specifically, referring to Figure 2 , Figure 5 and Figure 6 , the adapter 21 is further formed with a gap 213 communicating with the mounting groove 212.

[0110] It can be understood that, by arranging the gap 213 communicating with the mounting groove 212, when the magnetic piece 211 is mounted, the gap 213 can provide a space for avoiding, so as to facilitate mounting the magnetic piece 211 in the mounting groove 212, and the mounting convenience of the magnetic piece 211 is improved; when the magnetic piece is removed, an external force can be applied to the magnetic piece through the gap 213, so that the magnetic piece is separated from the mounting groove 212, and the convenience of removing the magnetic piece is improved.

[0111] For example, when the magnetic piece 211 is mounted or removed by using a mechanical hand, the gap 213 can provide a space for avoiding for the mechanical hand, so that the mechanical hand can smoothly mount or remove the magnetic piece 211 in / from the mounting groove 212.

[0112] In some embodiments, referring to Figure 10 , the connection piece 14 comprises a first clamping structure 142, and the hot end 2 is formed with a second clamping structure 143; in the first state, the first clamping structure 142 and the second clamping structure 143 are clamped and matched to fix the hot end 2 and the body 13.

[0113] It can be understood that when the hot end 2 needs to be connected to the body 13, the first clamping structure 142 and the second clamping structure 143 are clamped and matched, so that the first clamping structure 142 and the second clamping structure 143 are connected together, and then the hot end 2 and the body 13 are fixedly connected together, realizing the clamping connection of the hot end 2 and the extruder 1. When the hot end 2 needs to be disassembled, the first clamping structure 142 and the second clamping structure 143 are separated from each other, the hot end 2 can move relative to the body 13, and then the hot end 2 can be disassembled, so that the hot end 2 can be detachably connected to the extruder 1, and the hot end 2 is convenient to disassemble and assemble.

[0114] In some examples, one of the first clamping structure 142 and the second clamping structure 143 is a clamping column, and the other of the first clamping structure 142 and the second clamping structure 143 is a clamping hole.

[0115] In some embodiments, referring to Figure 1 、 Figure 2 and Figure 3 , the extruder 1 is provided with a connecting end 12 for connecting with the hot end 2, the mounting area 11 includes a mounting space 111 formed in the connecting end 12 of the extruder 1, and the shape of the fitting part 21 is adapted to the mounting space 111. The adaptation can be that the shape and / or size of the fitting part 21 matches the mounting space 111. The fitting part 21 is accommodated in the mounting space 111.

[0116] It can be understood that by forming the mounting space 111 in the connecting end 12 of the extruder 1, the hot end 2 with the shape of the fitting part 21 adapted to the mounting space 111 can be arranged in the mounting space 111, so that the hot end 2 can be connected to the extruder 1.

[0117] It can be understood that the shapes of the fitting parts 21 of different hot ends 2 are all adapted to the mounting space 111, and different hot ends 2 can be alternately arranged in the mounting space 111, that is, different hot ends 2 can be alternately connected to the extruder 1.

[0118] Specifically, referring to Figure 1 、 Figure 2 and Figure 3 , the connecting end 12 includes a first connecting part 121 and a second connecting part 122 connected in sequence, the first connecting part 121 extends along a first direction, the second connecting part 122 extends along a second direction, the first direction and the second direction intersect, and the mounting space 111 is formed between the first connecting part 121 and the second connecting part 122.

[0119] It can be understood that the first end of the first connecting part 121 is connected with the first end of the second connecting part 122, the second end of the first connecting part 121 extends along the first direction, the second end of the second connecting part 122 extends along the second direction, and the extending direction of the second end of the first connecting part 121 and the extending direction of the second end of the second connecting part 122 form an included angle greater than 0°, so that the second end of the first connecting part 121 and the second end of the second connecting part 122 form a mounting space 111, so that the hot end 2 can be accommodated in the mounting space 111.

[0120] It can be understood that the shape of at least one of the first connecting part 121 and the second connecting part 122 is matched with the shape of the matching part 21 of the hot end 2, so that the hot end 2 can be matched with the connecting end 12 of the extruder 1, and the hot end 2 and the extruder 1 are connected. In some examples, the shape of the side of the first connecting part 121 facing the hot end 2 is matched with the shape of the matching part 21, so that the matching part 21 of the hot end 2 can be matched and connected with the first connecting part 121. For example, the feeding channel of the extruder 1 is formed in the first connecting part 121, and when the matching part 21 is docked with the first connecting part 121, the discharging channel of the hot end 2 and the feeding channel of the extruder 1 are communicated.

[0121] In some examples, the mounting area 11 can also refer to a mounting surface formed in the extruder 1, and the shape of the mounting surface is matched with the shape of the matching part 21, so that the matching part 21 can be matched with the mounting surface, and the hot end 2 and the extruder 1 are connected.

[0122] In some embodiments, referring to Figure 3 The multi-dimensional printing assembly further comprises at least one positioning member 3, which is arranged in the mounting area 11 and is used to position the matching part 21 so that the matching part 21 is matched with the mounting area 11.

[0123] It can be understood that when the hot end 2 is connected to the mounting area 11, the positioning member 3 can position the matching part 21 of the hot end 2, so that the matching part 21 of the hot end 2 can be smoothly matched with the mounting area 11 of the extruder 1, and the hot end 2 and the extruder 1 are connected and matched.

[0124] Specifically, referring to Figure 3 The positioning member 3 is connected to the extruder 1, and an end of the positioning member 3 away from the extruder 1 is formed with a first guide surface 31 for guiding the matching part 21 to be matched with the positioning member 3.

[0125] It can be understood that when the hot end 2 is connected to the extruder 1, the fitting portion 21 of the hot end 2 will first contact the first guide surface 31 of the positioning member 3, and the first guide surface 31 can guide the fitting portion 21 to cooperate with the positioning member 3, so as to position the fitting portion 21 of the hot end 2 by the positioning member 3.

[0126] In some examples, the number of the positioning members 3 is at least two, and the at least two positioning members 3 are arranged around the electromagnet 141, so as to improve the structural compactness of the multi-dimensional printing assembly.

[0127] In some examples, the positioning member 3 is, for example, a positioning pin or a positioning plate or any other suitable structure having a positioning function.

[0128] Specifically, referring to Figure 2 and Figure 3 , the fitting portion 21 is formed with a positioning hole 214, and the positioning member 3 can be inserted into the positioning hole 214 to position the fitting portion 21.

[0129] It can be understood that by forming the positioning hole 214 in the fitting portion 21, the positioning member 3 can be inserted into the fitting portion 21 to position the fitting portion 21.

[0130] Specifically, a second guide surface is formed at the opening of the positioning hole 214, and the second guide surface is used to guide the positioning member 3 to be inserted into the positioning hole 214.

[0131] It can be understood that by arranging the second guide surface at the opening of the positioning hole 214, when the hot end 2 is installed in the installation area 11, the second guide surface can guide the positioning member 3 to be inserted into the positioning hole 214, so that the positioning member 3 can be smoothly and quickly cooperated with the positioning hole 214 to position the hot end 2.

[0132] In some embodiments, the nozzles 24 of different hot ends 2 have different diameters.

[0133] It can be understood that different hot ends 2 can be detachably connected to the extruder 1, so that the diameters of the nozzles 24 of the multi-dimensional printing assembly can be changed by replacing different hot ends 2, which can meet different requirements of the multi-dimensional printing process without replacing the entire multi-dimensional printing assembly, and is conducive to reducing the cost of multi-dimensional printing.

[0134] In some embodiments, at least one of the feeding channel and the discharging channel is a straight channel.

[0135] It can be understood that the feeding channel and / or the discharging channel is arranged as a straight channel, so that the material is not easy to be blocked when moving in the feeding channel and / or the discharging channel.

[0136] It can be understood that the straight channel refers to that the channel extends along a straight line direction, and the channel does not have a bending.

[0137] In some embodiments, referring to Figure 4 , Figure 5 and Figure 7 , the hot end 2 comprises a heating part 23 and a nozzle 24 connected in sequence, and the discharging channel comprises a first channel formed in the heating part 23, and the first channel is communicated with the nozzle 24 and the feeding channel.

[0138] It can be understood that the first channel of the heating part 23 is communicated with the feeding channel and the nozzle 24, so that the material can enter the first channel through the feeding channel, and at this time, the heating part 23 can heat the material in the first channel, so that the material is at a preset temperature, and then the material is sprayed out through the nozzle 24.

[0139] In some embodiments, referring to Figure 4 , Figure 5 and Figure 7 , the hot end 2 further comprises a heat dissipation part 22, the heat dissipation part 22, the heating part 23 and the nozzle 24 are connected in sequence, and the discharging channel further comprises a second channel formed in the heat dissipation part 22 and communicated with the first channel. As shown in Figure 9 , the length of the second channel is S1. The length of the first channel is S2.

[0140] It can be understood that the extruder 1 delivers the material to the second channel, and then the material is delivered to the first channel, at which time the heating part 23 can heat the material, so that the material is at a preset temperature, so that the nozzle 24 can spray the material out.

[0141] It can be understood that the prior art reduces the cost by switching the feeding through one tool head, and when switching for use, the residual material in the hot end 2 needs to be removed, at which time the material in the second channel and the first channel will be wasted, and the length of the wasted material is S1+S2=S. And the present application is provided with at least two hot ends 2, when different materials need to be used, the hot end 2 can be directly replaced, at which time only the material in the second channel will be wasted, that is, the length of the waste material generated by the present application is S1, which effectively reduces the waste of material. And because the melting temperatures of various materials are different, if the material is switched from high temperature to low temperature, for example, from a material with a melting temperature of 250° to a material with a melting temperature of 200°, the prior art of switching the feeding through one tool head will cause the 250° material to be blocked in the same hot end, and the replacement of the hot end through the present application can avoid this problem, and meet the working conditions of multiple material and multiple temperature printing, and multiple hot end nozzle aperture printing.

[0142] In some embodiments, referring to Figure 1 , Figure 4 andFigure 5 The heat dissipation part 22 comprises a heat dissipation frame 221 and a heat dissipation body 222, the heat dissipation body 222 is installed on the heat dissipation frame 221, the heat dissipation frame 221 is formed with a connecting hole 2211, the first end of the heating part 23 is connected with the heat dissipation body 222, and the second end of the heating part 23 penetrates through the connecting hole 2211 and protrudes from the heat dissipation frame 221.

[0143] It can be understood that the connecting hole 2211 is formed at the heat dissipation frame 221, so that the heating part 23 can be connected through the connecting hole 2211 and the heat dissipation body 222, which improves the connection convenience of the heating part 23 and the heat dissipation part 22. At the same time, after the first end of the heating part 23 is connected with the heat dissipation body 222, the second end of the heating part 23 can penetrate through the connecting hole 2211 and protrude from the heat dissipation frame 221, which ensures that the second end of the heating part 23 can protrude from the heat dissipation part 22, so as to facilitate the connection of the heating part 23 and the nozzle 24. In addition, the connecting hole 2211 can also play a limiting and guiding role for the heating part 23, which facilitates the alignment of the second channel and the first channel.

[0144] Specifically, the heating part 23 is detachably connected to the heat dissipation frame 221.

[0145] It can be understood that the heating part 23 is detachably connected to the heat dissipation frame 221, so that the heating part 23 can be disassembled relative to the heat dissipation part 22, thereby facilitating the replacement of the heating part 23 or the heat dissipation part 22 when the heating part 23 or the heat dissipation part 22 fails. At the same time, when cleaning the second channel of the heat dissipation part 22 and the first channel of the heating part 23, the heating part 23 can be disassembled, thereby facilitating the cleaning of the second channel and the first channel.

[0146] In some examples, the heating part 23 is detachably connected to the heat dissipation frame 221 by clamping, magnetic attraction, adhesion or the like.

[0147] According to the embodiment of the second aspect of the present application, the present application also provides a multi-dimensional printing assembly for printing the same material. The embodiment of the second aspect is different from the embodiment of the first aspect as follows: at least two hot ends, the hot end 2 is formed with a discharge channel, the pore diameter of the discharge channel of each hot end 2 is different, the discharge channels of different hot ends 2 are used to accommodate the same material, each hot end 2 is provided with a matching part 21 adapted to the mounting area 11, and the mounting area 11 is detachably connected with at least two matching parts 21, so that the feeding channel of the extruder 1 and the discharge channels of at least two hot ends 2 are alternately communicated, thereby the extruder 1 can deliver the same material into the discharge channels of hot ends 2 with different pore diameters. That is, in order to meet the printing requirements, the same material can be accommodated in hot ends with different pore diameters to meet the working condition of printing together with multi-hot-end nozzle pore diameters.

[0148] It can be understood that the connecting portions 21 of different hot ends 2 can be detachably connected to the mounting area 11 of the extruder 1 respectively, and the diameters of the discharge channels of different hot ends 2 are different, so that the discharge diameter of the multi-dimensional printing assembly can be changed by replacing the hot end 2 connected to the extruder 1, different requirements for the discharge diameter in the multi-dimensional printing process are met, the entire multi-dimensional printing assembly does not need to be replaced, and the cost of multi-dimensional printing is reduced.

[0149] According to the third aspect of the embodiments of the present application, the present application further provides a hot end 2, the hot end 2 is formed with a discharge channel for accommodating material, the hot end 2 is provided with a connecting portion 21, the connecting portion 21 is matched with the mounting area 11 of the extruder 1, the connecting portions 21 of different hot ends 2 are detachably connected to the mounting area 11, so that the feeding channel of the extruder 1 is in communication with the discharge channel of the hot end 2, and then the extruder 1 can deliver the material into the discharge channel of the hot end 2.

[0150] According to the hot end of the embodiments of the present application, the connecting portions 21 of different hot ends 2 can be detachably connected to the mounting area 11 of the extruder 1, different hot ends 2 can meet different requirements, for example, different hot ends 2 can accommodate different materials, the diameters of the discharge channels of different hot ends 2 are different, etc. Then, by replacing the hot end 2 connected to the extruder 1, different requirements in the multi-dimensional printing process can be met. That is, by providing at least two different hot ends 2 and detachably connecting the extruder 1 with the at least two hot ends, the feeding channel of the extruder 1 can be in communication with the discharge channels of different hot ends 2, that is, the extruder 1 can be used with different hot ends 2 to meet different requirements in the multi-dimensional printing process, the entire multi-dimensional printing assembly does not need to be replaced, and the cost of multi-dimensional printing is reduced.

[0151] Specifically, referring to Figure 4 , Figure 5 and Figure 7 , the hot end 2 includes a heating portion 23 and a nozzle 24 connected in sequence, and the discharge channel includes a first channel formed in the heating portion 23, and the first channel is in communication with the nozzle 24 and the feeding channel.

[0152] It can be understood that the first channel of the heating portion 23 is in communication with the feeding channel and the nozzle 24, so that the material can enter the first channel through the feeding channel, at this time the heating portion 23 can heat the material in the first channel, so that the material is at a preset temperature, and then the material is sprayed out through the nozzle 24.

[0153] According to the embodiment of the fourth aspect of the present application, the present application further provides an extruder 1. The extruder 1 is formed with a feeding channel, and the extruder 1 is provided with a mounting area 11, the mounting area 11 is adapted to the mating part 21 of the hot end 2, and the mating part 21 is detachably connected to the mounting area 11, so that the feeding channel of the extruder 1 is in communication with the discharging channel of the hot end 2, and then the extruder 1 can deliver material into the discharging channel of the hot end 2.

[0154] According to the extruder of the embodiment of the present application, the mating part 21 of different hot ends 2 can be detachably connected to the mounting area 11 of the extruder 1, and different hot ends 2 can provide different requirements, for example, different hot ends 2 can accommodate different materials, the caliber of the discharging channel of different hot ends 2 is different, etc. Then, by replacing the hot end 2 connected to the extruder 1, different requirements in the multi-dimensional printing process can be met. That is, by providing at least two different hot ends 2, and the extruder 1 is detachably connected to the at least two hot ends, the feeding channel of the extruder 1 can be in communication with the discharging channel of different hot ends 2, that is, the extruder 1 can be used with different hot ends 2 to meet different requirements in the multi-dimensional printing process, without replacing the entire multi-dimensional printing assembly, which is beneficial to reduce the cost of multi-dimensional printing.

[0155] Specifically, referring to Figure 1 , Figure 2 and Figure 3 , the extruder 1 comprises a body 13 and a connecting piece 14, the connecting piece 14 is arranged at the mounting area 11, and the connecting piece 14 can be switched between a first state and a second state, wherein in the first state, the connecting piece 14 fixedly connects the hot end 2 and the body 13, and in the second state, the hot end 2 is movable relative to the body 13.

[0156] It can be understood that by making the connecting piece 14 in the first state, the hot end 2 and the body 13 are fixedly connected, the connection between the hot end 2 and the extruder 1 is realized, and the stable communication between the feeding channel of the extruder 1 and the discharging channel of the hot end 2 is ensured; when a new hot end 2 needs to be replaced, the connecting piece 14 is in the second state, at this time, the current hot end 2 can move relative to the body 13, that is, the current hot end 2 can be detached from the extruder 1, and then a new hot end 2 is arranged at the mounting area 11, and the connecting piece 14 is again in the first state, so that the new hot end 2 and the extruder 1 are fixedly connected.

[0157] It can be understood that the connecting piece 14 is arranged at the mounting area 11, which realizes effective use of the space of the mounting area 11 and is beneficial to the structural simplification of the multi-dimensional printing assembly. Moreover, the hot end 2 is arranged at the mounting area 11, and the connecting piece 14 is also arranged at the mounting area 11, so that the hot end 2 and the extruder 1 can be directly fixed and connected together by the connecting piece 14 when the hot end 2 is at the mounting area 11, thereby improving the convenience of connecting the hot end 2 and the extruder 1 by the connecting piece 14, and further facilitating the structural simplification of the connecting piece 14.

[0158] In some examples, the connecting piece 14 is, for example, a magnetic piece or a clamping piece or a pasting piece.

[0159] For example, when the connecting piece 14 is a clamping piece, the clamping piece is fixedly connected to the body 13, and the clamping piece can be clamped with the hot end 2. Specifically, the hot end 2 is formed with a clamping groove matched with the clamping piece, and the clamping groove of the hot end 2 is matched with the clamping piece, so that the clamping piece and the hot end 2 are clamped, and the connection between the hot end 2 and the extruder 1 is realized. When the hot end 2 is disassembled, a force away from the clamping piece is applied to the hot end 2 or a force away from the hot end 2 is applied to the clamping piece, so that the clamping piece and the hot end 2 are separated, and the hot end 2 can move relative to the extruder 1.

[0160] According to the embodiment of the fifth aspect of the present application, the multi-dimensional printing device comprises the multi-dimensional printing assembly described above.

[0161] According to the multi-dimensional printing device of the embodiment of the present application, the fitting portions 21 of different hot ends 2 can be respectively detachably connected to the mounting area 11 of the extruder 1, and the discharge channels of different hot ends 2 are used to contain different materials, so that by replacing the hot end 2 connected to the extruder 1, the extruder 1 can deliver different materials into the discharge channels of different hot ends 2, and the use of different materials is realized. That is to say, by arranging at least two hot ends 2 and detachably connecting the extruder 1 with the at least two hot ends 2, the feeding channel of the extruder 1 can be alternately communicated with the discharge channels of different hot ends 2, so as to deliver different materials into the discharge channels of different hot ends 2. In the prior art, in order to meet the printing requirements of different materials, a plurality of tool heads are provided, each tool head comprising an extruder and a hot end. Therefore, one tool head, i.e. one extruder and one hot end, needs to be replaced each time a material is printed. For example, if three materials need to be printed, three extruders and three hot ends need to be replaced. In the present application, if three materials need to be printed, only one extruder and three hot ends are needed, so that the need for using different materials can be met without replacing the entire multi-dimensional printing assembly, which is beneficial to reducing the cost of the multi-dimensional printing device.

[0162] In some embodiments, referring to Figure 8The multi-dimensional printing device further comprises a mounting seat 4, and the mounting seat 4 is detachably mounted with at least two hot ends 2.

[0163] It can be understood that the mounting seat 4 can be used to store the hot ends 2, when it is needed to replace the hot end 2 connected with the extruder 1, the hot end 2 connected with the extruder 1 can be detached and mounted on the mounting seat 4, and meanwhile, the new hot end 2 on the mounting seat 4 can be taken off and connected with the extruder 1, so that the replacement of the hot end 2 of the multi-dimensional printing assembly can be completed, which is simple and convenient, and the mounting seat 4 plays a role of storage for the hot end 2, so that the storage of the unused hot end 2 is facilitated.

[0164] In some embodiments, the multi-dimensional printing device further comprises a moving assembly, and the moving assembly is movable between the mounting seat 4 and the extruder 1, so as to alternately move different hot ends 2 to the mounting area 11.

[0165] It can be understood that the moving assembly can drive the hot end 2 to move between the mounting seat 4 and the extruder 1, so that the automatic movement of the hot end 2 between the mounting seat 4 and the extruder 1 is realized without manual operation.

[0166] For example, the moving assembly is a mechanical hand or a three-axis driving device provided with a clamping member.

[0167] In some embodiments, the hot end 2 is provided with a connecting area 25 matched with the moving assembly, and the moving assembly is detachably connected with the connecting area 25 of the at least two hot ends 2.

[0168] The multi-dimensional printing device further comprises a sensing member 6 arranged on the connecting area 25, and the sensing member 6 is used to detect the connection state between the moving assembly and the connecting area 25.

[0169] It can be understood that the moving assembly is detachably connected with the connecting area 25 of the hot end 2, when it is needed to move the hot end 2, the moving assembly and the connecting area 25 of the hot end 2 are connected together, and when the hot end 2 is moved to the mounting seat 4 or the mounting area 11, i.e. the hot end 2 does not need to be moved, the moving assembly and the hot end 2 are disconnected.

[0170] By arranging the sensing member 6 on the connecting area 25, the connection state between the moving assembly and the connecting area 25 can be detected by the sensing member 6, i.e. it can be determined whether the moving assembly is connected with the connecting area 25 of the hot end 2, when the hot end 2 connected with the extruder 1 is moved to the mounting seat 4 by the moving assembly, if the sensing member 6 detects that the moving assembly and the connecting area 25 are connected, the hot end 2 can be moved relative to the extruder 1, so that the moving assembly drives the hot end 2 to move, and if the sensing member 6 has not detected that the moving assembly and the connecting area 25 are connected, the hot end 2 and the extruder 1 are kept connected, so that the hot end 2 is prevented from falling.

[0171] In some examples, the sensing member 6 is a pressure sensing member 6 or an infrared sensing member 6.

[0172] In some examples, the sensing member 6 can include a controller, which can determine whether the moving assembly is connected to the connecting area 25 according to the detection data. A controller can also be separately provided from the sensing member 6 and electrically connected to the sensing member 6, so that the controller can determine whether the moving assembly is connected to the connecting area 25 according to the detection data of the sensing member 6.

[0173] The technical solutions of the embodiments of the present application are described below in conjunction with specific examples.

[0174] Embodiment One

[0175] A multi-dimensional printing device includes an extruder 1 and at least two different hot ends 2. The extruder 1 is formed with a feeding channel, and the extruder 1 is provided with a mounting area 11. The hot end 2 is formed with a discharging channel, and the discharging channel of the hot end 2 is used to accommodate material. The hot end 2 is provided with a matching part 21 adapted to the mounting area 11, and the matching part 21 is detachably connected to the mounting area 11, so that the feeding channel of the extruder 1 is in communication with the discharging channel of the hot end 2, and the extruder 1 can deliver material into the discharging channel of the hot end 2.

[0176] When the multi-dimensional printing device needs to print different materials, since different hot ends 2 can accommodate different materials, by replacing the hot end 2 connected to the extruder 1, the extruder 1 can deliver different materials into the discharging channel of different hot ends 2, so that the use of different materials is realized.

[0177] When the multi-dimensional printing device needs to print materials of different sizes, the discharging channels of different hot ends 2 have different diameters. By replacing the hot end 2 connected to the extruder 1, the discharging diameter of the multi-dimensional printing assembly can be changed to meet different requirements for the discharging diameter in the multi-dimensional printing process, without the need to replace the entire multi-dimensional printing assembly, which is conducive to reducing the cost of multi-dimensional printing.

[0178] Embodiment Two

[0179] A multi-dimensional printing assembly includes an extruder 1 and at least two different hot ends 2, and the hot ends 2 are magnetically attracted to the extruder 1.

[0180] Specifically, the hot end 2 is provided with a magnetic part 211, and the extruder 1 is provided with an electromagnet 141, the electromagnet 141 can be switched between the power-on state and the power-off state, in the power-on state, the electromagnet 141 will generate a magnetic attraction to adsorb the magnetic part 211 of the connecting part 21, so that the magnetic part 211 and the electromagnet 141 are connected together, and then the hot end 2 and the extruder 1 are connected through the connecting piece 14, in the power-off state, the electromagnet 141 loses the magnetic attraction, and the electromagnet 141 no longer adsorbs the magnetic part 211 of the connecting part 21, so that the connecting part 21 can move relative to the electromagnet 141, that is, the hot end 2 can move relative to the extruder 1. That is, the application can realize the connection of the hot end 2 and the extruder 1 through the cooperation of the electromagnet 141 and the magnetic attraction part, and the structure is simple, and the connection of the hot end 2 and the extruder 1 can be controlled by controlling the power-on state of the electromagnet 141, which is simple and convenient.

[0181] Embodiment three:

[0182] The printing assembly comprises an extruder 1 and at least two different hot ends 2, and the hot end 2 is in clamping connection with the extruder 1.

[0183] Specifically, the extruder 1 is provided with a first clamping structure 142, and the hot end 2 is provided with a second clamping structure 143, and the first clamping structure 142 and the second clamping structure 143 are in clamping connection. When it is needed to connect the hot end 2 and the body 13, the first clamping structure 142 and the second clamping structure 143 are connected together through the clamping connection of the first clamping structure 142 and the second clamping structure 143, so that the hot end 2 and the body 13 are fixedly connected together, and the clamping connection of the hot end 2 and the extruder 1 is realized, and when it is needed to disassemble the hot end 2, the first clamping structure 142 and the second clamping structure 143 are separated from each other, and the hot end 2 can move relative to the body 13, and then the hot end 2 is disassembled, so that the hot end 2 is detachably connected to the extruder 1, and the hot end 2 is convenient to disassemble and assemble.

[0184] The above describes the multi-dimensional printing assembly and the multi-dimensional printing device provided by the application in detail, and the principles and implementation modes of the application are described by applying specific examples; the above description of the embodiments is only used to help understand the method and core idea of the application; meanwhile, for those skilled in the art, according to the idea of the application, the specific implementation mode and application range can be changed, and the above description of the application should not be understood as a limitation.

Claims

1. A multidimensional printing component for printing different materials, characterized in that, include: An extruder having a feed channel and an installation area provided on the extruder; At least two different hot ends, each hot end forming a discharge channel, the discharge channels of the different hot ends being used to accommodate different materials, each hot end being provided with a mating part adapted to the mounting area, and the mounting area being detachably connected to the at least two mating parts respectively, so that the feed channel of the extruder is alternately connected to the discharge channels of the at least two hot ends, thereby enabling the extruder to convey different materials to the discharge channels of the different hot ends.

2. The multidimensional printing component according to claim 1, characterized in that, The extruder includes a body and a connector. The connector is located in the mounting area and can switch between a first state and a second state. In the first state, the connector is fixedly connected to the hot end and the body. In the second state, the hot end can move relative to the body.

3. The multidimensional printing component according to claim 2, characterized in that, The mating part has a magnetic component, and the connector includes an electromagnet. In the first state, the electromagnet is energized and attracts the magnetic component. In the second state, the electromagnet is de-energized and the magnetic component can detach from the electromagnet.

4. The multidimensional printing component according to claim 3, characterized in that, The multidimensional printing component also includes a control component, which is connected to the electromagnet and is used to control the electromagnet to switch between an energized state and an unenergized state. The control component is connected to the main body, and the control component and the mounting area are spaced apart.

5. The multidimensional printing component according to claim 3, characterized in that, The mating part has a mounting groove, and the magnetic component is disposed in the mounting groove.

6. The multidimensional printing component according to claim 5, characterized in that, The mating part also has a notch that communicates with the mounting groove.

7. The multidimensional printing component according to claim 2, characterized in that, The connector includes a first snap-fit ​​structure, and the hot end has a second snap-fit ​​structure; in the first state, the first snap-fit ​​structure and the second snap-fit ​​structure engage to fix the hot end and the body together.

8. The multidimensional printing component according to any one of claims 1 to 7, characterized in that, The extruder is provided with a connection end for connecting to the hot end, the mounting area includes a mounting space formed in the connection end of the extruder, the shape of the mating part is adapted to the mounting space, and the mating part is accommodated in the mounting space.

9. The multidimensional printing component according to claim 8, characterized in that, The connection end includes a first connection part and a second connection part connected in sequence. The first connection part extends along a first direction, and the second connection part extends along a second direction. The first direction and the second direction intersect, and the installation space is formed between the first connection part and the second connection part.

10. The multidimensional printing component according to any one of claims 1 to 7, characterized in that, The multi-dimensional printing component further includes at least one positioning element disposed in the mounting area, the positioning element being used to position the mating part so that the mating part and the mounting area cooperate.

11. The multidimensional printing component according to claim 10, characterized in that, The positioning element is connected to the extruder, and a first guide surface is formed at the end of the positioning element opposite to the extruder. The first guide surface is used to guide the mating part and the positioning element to cooperate.

12. The multidimensional printing component according to claim 10, characterized in that, The mating part has a positioning hole, and the positioning member can be inserted into the positioning hole to position the mating part.

13. The multidimensional printing component according to claim 12, characterized in that, A second guide surface is formed at the opening of the positioning hole, and the second guide surface is used to guide the positioning member to be inserted into the positioning hole.

14. The multidimensional printing component according to any one of claims 1 to 7, characterized in that, The nozzles at the different hot ends have the same orifice diameter.

15. The multidimensional printing component according to any one of claims 1 to 7, characterized in that, At least one of the feeding channel and the discharging channel is a straight channel.

16. The multidimensional printing component according to any one of claims 1 to 7, characterized in that, The hot end includes a heating section and a nozzle connected in sequence, and the discharge channel includes a first channel formed in the heating section, the first channel connecting the nozzle and the feed channel.

17. The multidimensional printing component according to claim 16, characterized in that, The hot end also includes a heat dissipation section, the heat dissipation section, and the nozzle are connected in sequence, and the discharge channel also includes a second channel formed in the heat dissipation section, the second channel and the first channel are connected.

18. The multidimensional printing component according to claim 17, characterized in that, The heat dissipation part includes a heat dissipation frame and a heat dissipation body. The heat dissipation body is installed on the heat dissipation frame. The heat dissipation frame has a connection hole. The first end of the heating part is connected to the heat dissipation body. The second end of the heating part passes through the connection hole and protrudes from the heat dissipation frame.

19. The multidimensional printing component according to claim 18, characterized in that, The heating element is detachably connected to the heat dissipation frame.

20. A multidimensional printing assembly for printing identical materials, characterized in that, include: An extruder having a feed channel and an installation area; The extruder has at least two hot ends, each hot end having a discharge channel with a different aperture in the discharge channel. The discharge channels of the different hot ends are used to accommodate the same material. Each hot end is provided with a mating part adapted to the mounting area, and the mounting area is detachably connected to the at least two mating parts, so that the feed channel of the extruder is alternately connected to the discharge channels of the at least two hot ends, thereby enabling the extruder to convey the same material to the discharge channels of the hot ends with different apertures.

21. A hot junction, characterized in that, The hot end has a discharge channel for receiving materials. The hot end is provided with a mating part that is adapted to the installation area of ​​the extruder. The mating parts of different hot ends can be detachably connected to the installation area so that the feed channel of the extruder is connected to the discharge channel of the hot end, thereby enabling the extruder to transport materials into the discharge channel of the hot end.

22. The hot end according to claim 21, characterized in that, The hot end includes a heating section and a nozzle connected in sequence, and the discharge channel includes a first channel formed in the heating section, the first channel connecting the nozzle and the feed channel.

23. An extruder, characterized in that, The extruder has a feed channel and an installation area. The installation area is adapted to a mating part of the hot end. The mating part is detachably connected to the installation area so that the feed channel of the extruder is connected to the discharge channel of the hot end, thereby enabling the extruder to transport material into the discharge channel of the hot end.

24. The extruder according to claim 23, characterized in that, The extruder includes a body and a connector. The connector is located in the mounting area and can switch between a first state and a second state. In the first state, the connector is fixedly connected to the hot end and the body. In the second state, the hot end can move relative to the body.

25. A multidimensional printing device, characterized in that, Includes the multidimensional printing component as described in any one of claims 1 to 20.

26. The multidimensional printing device according to claim 25, characterized in that, The multidimensional printing device also includes a mounting base on which at least two of the hot ends are detachably mounted.

27. The multidimensional printing device according to claim 26, characterized in that, The multidimensional printing device also includes a moving component that can move between the mounting base and the extruder to alternately move different hot ends to the mounting area.

28. The multidimensional printing device according to claim 27, characterized in that, The hot end has a connection area adapted to the moving component, and the moving component is detachably connected to at least two connection areas of the hot end; The multidimensional printing device also includes a sensor located in the connection area, which is used to detect the connection status between the moving component and the connection area.

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