Printing head device and lamination manufacturing equipment

Abstract

According to the printing head device and the lamination manufacturing equipment, a heating assembly is connected with a supporting assembly through a connecting piece, a nozzle assembly can be independently disassembled from the supporting assembly, the heating assembly does not need to be disassembled, and rapid disassembly and assembly of the nozzle assembly are conveniently achieved. The main technical scheme of the utility model is that the printing head device comprises a supporting assembly; the connecting piece comprises a connecting main body, and the connecting main body is connected with the supporting assembly; the heating assembly is connected with the connecting main body; and the nozzle assembly is connected with the supporting assembly, and the heating assembly abuts against the nozzle assembly. The 3D printer is mainly used for 3D printing.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a print head device and a layer manufacturing device. Background Art

[0002] In an FDM printer, an extruder continuously transports printing consumables into a print head, and a heating block in the print head heats the consumables to make them melt and spray out through a nozzle at the bottom onto a printing platform.

[0003] In an existing print head, the heating block is connected to the nozzle or the throat pipe. When the nozzle or the throat pipe needs to be disassembled, the heating block needs to be disassembled at the same time. However, since the heating block is connected with an energized wire harness, the disassembly and assembly of the nozzle or the throat pipe are inconvenient. Summary of the Utility Model

[0004] In view of this, to solve at least one of the above technical problems, embodiments of the utility model provide a print head device and a layer manufacturing device.

[0005] To achieve the above object, the utility model mainly provides the following technical solutions:

[0006] On the one hand, the utility model provides a print head device, including:

[0007] A support assembly;

[0008] A connecting piece, the connecting piece includes a connecting body, and the connecting body is connected to the support assembly;

[0009] A heating assembly, the heating assembly is connected to the connecting body;

[0010] A nozzle assembly, the nozzle assembly is connected to the support assembly, and the heating assembly abuts against the nozzle assembly to heat the nozzle assembly.

[0011] On the other hand, the utility model further provides a layer manufacturing device, including the print head device in any one of the above.

[0012] For the print head device and the layer manufacturing device provided by the utility model, it is mainly set that the heating assembly is connected to the support assembly through the connecting piece. After the nozzle assembly is installed in place, the nozzle assembly abuts against the fixed heating assembly to realize heating of the nozzle assembly; when the nozzle assembly needs to be disassembled, the nozzle assembly can be separately disassembled from the support assembly, while the heating assembly will continue to be connected by the connecting piece without the need to disassemble the heating assembly, realizing convenient and quick disassembly and assembly of the nozzle assembly and avoiding the cumbersome disassembly caused by the constraint of the energized wire harness of the heating assembly. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the first print head device provided by the embodiment of the utility model from the first perspective;

[0014] Figure 2 Schematic structural diagram of the first print head device provided by the embodiment of the present utility model from the second perspective;

[0015] Figure 3 Exploded structural diagram of the first print head device provided by the embodiment of the present utility model;

[0016] Figure 4 Schematic structural diagram of the connecting member in the first print head device provided by the embodiment of the present utility model;

[0017] Figure 5 Schematic structural diagram of the heating block in the first print head device provided by the embodiment of the present utility model;

[0018] Figure 6 Schematic structural diagram of the second print head device provided by the embodiment of the present utility model;

[0019] Figure 7 Exploded structural diagram of the second print head device provided by the embodiment of the present utility model;

[0020] Figure 8 Cross-sectional structural diagram of the second print head device provided by the embodiment of the present utility model;

[0021] Figure 9 Schematic structural diagram of the third print head device provided by the embodiment of the present utility model from the first perspective;

[0022] Figure 10 Schematic structural diagram of the third print head device provided by the embodiment of the present utility model from the second perspective;

[0023] Figure 11 Exploded structural diagram of the third print head device provided by the embodiment of the present utility model;

[0024] Figure 12 Exploded structural diagram of a partial structure of the third print head device provided by the embodiment of the present utility model;

[0025] Figure 13 Cross-sectional structural diagram of the third print head device provided by the embodiment of the present utility model. Detailed implementation manners

[0026] To further elaborate on the technical means and effects adopted by the present utility model to achieve the intended utility model purpose, the following will, in combination with the accompanying drawings, make a detailed description of some embodiments of the present application. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0027] On the one hand, asFigures 1-13 As shown in the figure, an embodiment of the present utility model provides a print head device, including:

[0028] A support assembly 100;

[0029] A connecting member 200, the connecting member 200 includes a connecting body 210, and the connecting body 210 is connected to the support assembly 100;

[0030] A heating assembly 300, the heating assembly 300 is connected to the connecting body 210;

[0031] A nozzle assembly 400, the nozzle assembly 400 is connected to the support assembly 100, and the heating assembly 300 abuts against the nozzle assembly to heat the nozzle assembly.

[0032] The print head device is used for an additive manufacturing device, which mainly includes a base, a gantry unit, an X-axis guiding unit, and a printing platform. The X-axis guiding unit is drivingly connected to the gantry unit, the printing platform is drivingly connected to the base, and the gantry unit is erected on the base. The support assembly 100 functions to support the connecting member 200 and the nozzle assembly 400. The support assembly 100 can be connected to the X-axis guiding unit, and the X-axis guiding unit functions to drive the support assembly 100 to move and guide the movement of the support assembly 100.

[0033] The connecting member 200 can be a connecting member of various structures, which can be elastic or rigid. The connection between the connecting body 210 and the support assembly 100, or the connection between the connecting body 210 and the heating assembly 300 can be a fixed connection, such as welding, etc., or can also be a detachable connection, such as bolt connection, snap connection, etc., to facilitate disassembly, replacement. The connection between the connecting body 210 and the support assembly 100, or the connection between the connecting body 210 and the heating assembly 300 can be a direct connection or can also be connected through an additionally provided connection structure. The positional relationship between the heating assembly 300 and the nozzle assembly 400 can be that the heating assembly 300 adheres to one side surface of the nozzle assembly 400, or the heating assembly 300 is sleeved on the outer periphery of the nozzle assembly 400, which will be described in combination with more specific embodiments hereinafter.

[0034] The nozzle assembly 400 includes a consumable channel for threading a consumable. The heating assembly 300 is used for energizing and generating heat, and then heating the consumable in the consumable channel. After the consumable melts, it will be extruded from the bottom end of the nozzle assembly 400 and then sprayed onto the printing platform.

[0035] A print head device and a layered manufacturing device proposed by the present utility model mainly set a heating component connected to a support component through a connecting piece. After the nozzle component is installed in place, the nozzle component abuts against the fixed heating component to realize heating of the nozzle component. When the nozzle component needs to be disassembled, the nozzle component can be disassembled from the support component alone, while the heating component will continue to be connected by the connecting piece without disassembling the heating component, realizing convenient and rapid disassembly and assembly of the nozzle component and avoiding the cumbersome disassembly caused by the wire harness constraint of the heating component.

[0036] In one implementation manner, at least part of the connecting body 210 has elasticity, and the connecting body 210 at least applies an elastic force to the heating component 300 to make the heating component 300 approach the nozzle component 400, so that the heating component 300 fits with the nozzle component 400.

[0037] The connecting body 210 can be a spring or an elastic piece formed by bending a plate. Or, the connecting body 210 can also be foam, soft rubber, etc. The connecting body 210 can be an integral structure, such as processed from an integral steel plate. Or, the connecting body 210 can also be composed of a combination of multiple structures, such as composed of a steel plate and a spring welded together, or can also be composed of a spring and a connecting piece, or can also be composed of foam and a connecting piece, etc. The connecting body 210 is the main structure for realizing elastic deformation in the connecting piece 200. The connecting piece 200 aims to provide an elastic connection environment for the heating component 300. For example, through the connecting piece 200, the heating component 300 can be elastically compressed in multiple directions under the action of the elastic force to adjust its position and posture, and then the heating component 300 can be adjusted adaptively in terms of position and posture according to the installation position of the nozzle component 400. At the same time, through the elastic force applied by the connecting piece 200, after the nozzle component 400 is installed, the heating component 300 can always abut against the nozzle component 400, and through the adjustment of position and posture, the surface fit between the heating component 300 and the nozzle component 400 is realized, thereby ensuring the accuracy of the installation position and the heating effect of the heating component 300. The connecting body 210 applying an elastic force to the heating component can play a role in adjusting the pressing force and the fitting degree of the heating component 300 against the nozzle component 400, making the contact between the heating component 300 and the nozzle component 400 closer and making the heating effect of the heating component 300 better.

[0038] In an alternative implementation manner, the elastic force applied by the connecting body 210 to the heating component 300 is 0.5 N to 10 N, so that the connecting body 210 can apply sufficient elastic force to the heating component 300 to make the heating component 300 fit with the nozzle component 400 and ensure the heating effect; and, this elastic force is not too large to avoid affecting the detection effect of the sensor for detecting force data on the print head.

[0039] In an alternative embodiment, the connecting member 200 further includes a first connecting portion that connects to the connecting body 210, and the connecting body 210 is connected to the support assembly 100 through the first connecting portion. The connection between the first connecting portion and the support assembly 100 can be at least one of clamping, plugging, sliding connection, magnetic attraction connection, snap connection, hanging connection, bonding, and screwing connection. The detachable connection between the connecting body 210 and the support assembly 100 can be achieved through the first connecting portion. For example, the first connecting portion can be a bolt, and the connecting body 210 can be fixed to the support assembly 100 by screwing it to the support assembly 100.

[0040] In an alternative embodiment, the support assembly 100 includes a hanging plate 110 and a heat dissipation block 120. The heat dissipation block 120 is connected to the hanging plate 110, and the nozzle assembly 400 is connected to the heat dissipation block 120.

[0041] The hanging plate 110 is used to connect to the X-axis guiding unit and can be the support plate of the print head device or the rear housing plate of the print head device. The heat dissipation block 120 includes a consumable channel and a plurality of heat dissipation fins. The nozzle assembly 400 can be plugged into the consumable channel of the heat dissipation block 120. The heat of the heating assembly 300 will be quickly dissipated under the action of the heat dissipation fins, avoiding the premature melting of the consumables caused by the upward conduction of heat and the problem of consumable blockage.

[0042] The connecting body 210 can be connected to the hanging plate 110 through the first connecting portion, or can be connected to the heat dissipation block 120 through the first connecting portion, or can be connected to both the hanging plate 110 and the heat dissipation block 120 simultaneously.

[0043] For example, in the embodiment where the connecting body 210 is connected to the hanging plate 110 through the first connecting portion, as Figure 3 、 Figure 7 described, a hanging interface 111 is provided on the hanging plate 110. The first connecting portion includes a first hanging plate 220. The first end of the first hanging plate 220 is connected to the connecting body 210. The second end of the first hanging plate 220 is suspended and can elastically move relative to the connecting body 210. The connecting body 210 is plugged into the hanging interface 111, and the first hanging plate 220 presses against the edge of the hanging interface 111.

[0044] The hanging interface 111 can be a through hole formed in the hanging plate 110 or a groove. The first hanging plate 220 is a bent plate-like structure. The first end of the first hanging plate 220 is connected to the end of the connection body 210, and the first hanging plate 220 and the connection body 210 form a structure similar to a U shape. During installation, the first hanging plate 220 and a partial area of the connection body 210 including the end portion extend into the hanging interface 111. The second end of the first hanging plate 220 is pressed to generate elastic deformation, such as the distance between the second end and the first end of the first hanging plate 220 being pressed to become smaller. A spring force is generated between the first end and the second end due to the elastic deformation, and the spring force of the elastic deformation presses and fixes the first hanging plate 220 in the hanging interface 111. In some embodiments, a limiting plate is further provided at the second end of the first hanging plate 220. The limiting plate is used to abut against the hanging plate 110 outside the hanging interface 111, for limiting the degree to which the first hanging plate 220 extends into the hanging interface 111, thereby avoiding the first hanging plate 220 passing through the hanging interface 111 when the hanging interface 111 is a through hole.

[0045] For another example, in the embodiment where the connection body 210 is connected to the heat dissipation block 120 through the first connection portion, the support assembly 100 can include both the hanging plate 110 and the heat dissipation block 120, or only include the heat dissipation block 120. As Figure 11 described, a hanging groove 121 is formed in the heat dissipation block 120. The first connection portion includes a second hanging plate 231 and a third hanging plate 232. The first end of the second hanging plate 231 is connected to the connection body 210. The second end of the second hanging plate 231 is suspended and can elastically move relative to the connection body 210. The first end of the third hanging plate 232 is connected to the second hanging plate 231. The second end of the third hanging plate 232 is suspended and can elastically move relative to the second hanging plate 231. The second hanging plate 231 is inserted into the hanging groove 121, and the second hanging plate 231 and the third hanging plate 232 respectively press against the opposite inner walls of the hanging groove 121.

[0046] The hanging groove 121 can be an additional installation groove formed in the heat dissipation block 120, or can be formed by enclosing adjacent heat dissipation fins. Or, as Figure 11Among them, the hanging slot 121 is surrounded by the lowermost heat dissipation fins and the main structure of the heat dissipation block 120. The second hanging plate 231 can be a plate-like structure, and the number of the third hanging plates 232 can be single or multiple, and can be a strip structure. The second hanging plate 231 is connected to the connection main body 210. The second hanging plate 231 and the third hanging plate 232 respectively abut against the opposite inner walls of the hanging slot 121, and there is a spacing between the third hanging plate 232 and the second hanging plate 231. When the second hanging plate 231 and the third hanging plate 232 are installed in the hanging slot 121, the slot width of the hanging slot 121 is smaller than the spacing between the third hanging plate 232 and the second hanging plate 231, thereby pressing the third hanging plate 232 to generate elastic deformation, and the elastic force brought by the elastic deformation enables the second hanging plate 231 and the third hanging plate 232 to be squeezed and fixed in the hanging slot 121.

[0047] The foregoing first hanging plate 220 and the connection main body 210, or the second hanging plate 231, the third hanging plate 232 and the connection main body 210 can all be integrally formed, such as being processed by a steel plate.

[0048] In an alternative embodiment, the connection main body 210 at least includes a first elastic plate 211 and a second elastic plate 212 arranged adjacent to each other. The first elastic plate 211 and the second elastic plate 212 are connected, and there is a spacing between the first elastic plate 211 and the second elastic plate 212, and elastic deformation can occur between the first elastic plate 211 and the second elastic plate 212.

[0049] The second elastic plate 212 and the first elastic plate 211 can be arranged in a stacked manner at a certain angle, so that the spacing between the second elastic plate 212 and the first elastic plate can elastically deform due to force, and then the spacing between the two is compressed, which can increase the structural strength of the connection main body 210 and reduce the space occupied by the connection main body 210. The connection main body 210 can include multiple elastic plates, and the multiple elastic plates are sequentially arranged in the manner of the first elastic plate 211 and the second elastic plate 212 as described above, and then a reciprocating wavy structure is formed, which can increase the elastic range of the connection main body 210. The two elastic plates at the outermost ends are respectively connected to the support assembly 100 and the heating assembly 300. Or, the connection main body 210 can only include the first elastic plate 211 and the second elastic plate 212. The second end of the first elastic plate 211 is detachably connected to the support assembly 100 through a first connection portion, and the second end of the second elastic plate 212 is connected to the heating assembly 300.

[0050] In an alternative embodiment, such as Figure 4As shown, at least one relief opening 213 is provided on the connection body 210, and the nozzle assembly 400 is movably inserted through the relief opening 213 to be connected to the support assembly 100. In an embodiment where the connection body 210 includes a plurality of elastic plates, a relief opening 213 is provided on any one of the elastic plates, so that the connection body 210 surrounds the outer periphery of the nozzle assembly 400, ensuring sufficient elasticity of the connection body 210 while making the structure more compact and reducing space occupancy.

[0051] In an alternative embodiment, the connector 200 further includes a second connection portion 240. The second connection portion 240 is connected to the connection body 210, and the connection body 210 is connected to the heating assembly 300 through the second connection portion 240.

[0052] The second connection portion 240 can have various structures, and the connection method with the heating assembly 300 can also be various, such as at least one of clamping, plugging, sliding connection, magnetic attraction connection, snap connection, hanging connection, bonding, and screwing.

[0053] In the following embodiments, a feasible embodiment of the connection between the second connection portion 240 and the heating assembly 300 will be described in combination with a specific structure of an alternative heating assembly 300: The heating assembly 300 includes a heating block 310 and a heating element 320. The second connection portion 240 is connected to the heating block 310. The heating block 310 is made of a material with good thermal conductivity, such as copper. The heating element 320 is used to provide heat for the heating block 310, such as a heating ceramic sheet. In an alternative embodiment, the heating assembly 300 can further include a temperature measuring element 330. The temperature measuring element 330 can be a thermistor. The temperature measuring element 330 is connected to the heating block 310, such as being inserted into the heating block 310 to obtain the actual temperature of the heating block 310.

[0054] In the following, three alternative embodiments of the connection between the second connection portion 240 and the heating assembly 300 will be described in combination with the above feasible embodiments of the heating assembly 300. It can be understood that the connection method between the second connection portion 240 and the heating assembly 300 is not limited to the following examples.

[0055] First, the heating assembly 300 includes a plugging groove 301. The second connection portion 240 is plugged into the plugging groove 301, and the heating assembly 300 is fixed by plugging and extrusion. For example Figures 1-5As shown, the nozzle assembly 400 ejects consumables from the bottom end. On one side of the heating assembly 300, or more specifically the heating block 310, opposite to the bottom end of the nozzle assembly 400, there is a socket 301. The second connecting portion 240 includes a first connecting plate 241 and at least one first pressing plate 242. The first pressing plate 242 is elastically connected to the first connecting plate 241. The first connecting plate 241 is inserted into the socket 301. The distance between the first pressing plate 242 and the first connecting plate 241 is greater than the width of the socket 301. The inner walls on both sides of the socket press the first pressing plate to cause elastic deformation. The elastic force generated by the elastic deformation causes the first pressing plate 242 to press against the inner wall of the socket 301.

[0056] In an alternative embodiment, the heating element 320 is fixed in cooperation with the heating block 310 through the second connecting portion 240. For example, the heating element 320 is located between the first connecting plate 241 and the inner wall of the socket 301. The heating element 320 is fixed by the cooperation of the first pressing plate 242 and the inner wall of the socket 301 pressing against the heating element 320, and then the heating element 320 is fixed and attached to the inner wall of the socket 301 to heat the heating block 310. The temperature measuring element 330 can be inserted into the socket 301 to measure the temperature.

[0057] In some alternative embodiments, as Figure 4 shown, a supporting plate 2411 is provided at the bottom end of the first connecting plate 241 opposite to the connecting body 210. The supporting plate 2411 is used to support the heating element 320 and the temperature measuring element 330 from the bottom end, facilitating installation and further limiting the heating element 320 and the temperature measuring element 330. The first pressing plate 242 can be arranged at various positions on the first connecting plate 241. For example, only the first pressing plate 242 facing the heating element 320 can be provided on the first connecting plate 241 to fix the heating element 320. The first connecting plate 241 can also be provided with first pressing plates 242 at both side edges of the first connecting plate 241, and then directly press against the inner wall of the socket 301.

[0058] Second, as Figures 9-13 shown, sockets 301 are respectively provided on both opposite sides of the heating assembly 300, or more specifically the heating block 310. The second connecting portion 240 includes a second connecting plate 243, two sliding plates 244 and at least two second pressing plates 245. The sliding plates 244 are connected to the second connecting plate 243. At least one second pressing plate 245 is elastically connected to the sliding plates 244. The second connecting plate 243 is adapted to the outer wall shape of the heating block 310, so that the sliding plates 244 can be inserted into the sockets 301, and the second pressing plates 245 press against the inner walls of the sockets 301.

[0059] In an alternative embodiment, the heating element 320 is cooperatively fixed to the heating block 310 through the second connecting portion 240. For example, the heating element 320 is located between the second connecting plate 243 and the outer wall of the heating block 310. The heating element 320 is cooperatively squeezed by the second connecting plate 243 and the outer wall of the heating block 310, and then the heating element 320 is fixed and attached to the outer wall of the heating block 310 to heat the heating block 310. The temperature measuring element 330 can be separately inserted into the heating block 310. In some embodiments, such as Figure 12 as shown, a third pressing plate 246 can be provided on one side of the second connecting plate 243 relative to the heating element 320, and then the squeezing and fixing of the heating element 320 can be achieved.

[0060] Thirdly, as Figures 6-8 shown, the heating assembly 300, or rather the heating block 310, includes a clamping groove 302, and the clamping groove 302 can be an annular groove. The connecting member 200 is clamped to the clamping groove 302 through the second connecting portion 240. The second connecting portion 240 includes a clamping interface 246 opened on the connecting member 200, and at least the edges of the clamping interface 246 are inserted into the clamping groove 302 from both radial sides of the clamping groove 302. In an alternative embodiment, the heating assembly 300 includes a heating hole 303, and the nozzle assembly 400 is inserted into the heating hole 303, and the clamping groove 302 can be arranged around the heating hole 303. When the clamping interface 246 is clamped to the clamping groove 302, at least the edges of the clamping interface 246 are inserted into the clamping groove 302 on both radial sides of the clamping groove 302, so as to provide a balanced force for the heating assembly 300 in the radial direction of the heating hole 303, and avoid the problem that the heating assembly 300 is unevenly stressed and the heating hole 303 is skewed relative to the nozzle assembly 400 caused by the clamping of the clamping interface 246 to the clamping groove 302 on one side of the heating hole 303. The heating element 320 and the temperature measuring element 330 can be directly inserted into the heating block 310.

[0061] In the embodiment where the aforementioned connection main body 210 includes the first elastic plate 211 and the second elastic plate 212, the aforementioned first connecting plate 241 or the second connecting plate 243 can be connected to the side of the second elastic plate 212 away from the first elastic plate 211, or the aforementioned clamping interface 246 can be opened on the second elastic plate 212. The aforementioned connection main body 210, the first connecting portion, and the second connecting portion 240 can be integrally formed.

[0062] In an alternative embodiment, the heating assembly 300, or rather the heating block 310, includes a heating hole 303. The nozzle assembly 400 is inserted into the heating hole 303 to heat the nozzle assembly 400 in the circumferential direction and improve the heating efficiency.

[0063] In an optional embodiment, the nozzle assembly 400 includes a nozzle 410, a main body 420 and a throat 430, the nozzle 410 is connected to the main body 420, the throat 430 is connected to the main body 420, the main body 420 is plugged into the heating hole 303, and the throat 430 is connected to the support assembly 100.

[0064] An interference fit may be used between the nozzle 410, the body 420 and the throat 430. The outer wall profile of the body 420 is adapted to the inner wall of the heating hole 303. The split nozzle assembly 400 is convenient for processing and replacement, and the materials of different components can be changed as needed.

[0065] In some embodiments, the outer diameter of the main body 420 increases in a direction close to the nozzle 410 , the inner wall profile of the heating hole 303 matches the outer wall profile of the main body 420 , and the main body 420 abuts against the heating hole 303 .

[0066] The nozzle assembly 400 is inserted into the heating hole 303 from bottom to top, and the connecting piece 200 at least provides downward elastic force for the heating block 310, while the main body 420 provides upward support for the heating block 310 through the action of the inclined side wall of the main body 420 and the inner wall of the heating hole 303, thereby, on the one hand, fixing the position of the heating block 310 in the vertical direction and in any horizontal direction to ensure the stability of the position of the heating block 310; on the other hand, the inner wall of the heating hole 303 and the main body 420 are closely fitted to ensure the heating effect.

[0067] In an optional embodiment, a fastening groove 401 is provided on the nozzle assembly 400, such as a fastening groove 401 is provided on the throat 430, and the fastening groove 401 may be an annular groove surrounding the throat 430. A mounting hole and a plug hole connected to the mounting hole are provided on the support assembly 100 or the heat sink 120, and the print head device further includes a fastener 500, the nozzle assembly 400 is plugged into the mounting hole, the fastener 500 is inserted into the plug hole, and the fastener 500 is at least partially embedded in the fastening groove 401 to fix the nozzle assembly 400.

[0068] The fastener 500 may include a top screw and a limiting rod, the limiting rod is located in the insertion hole and embedded in the fastening groove 401, the top screw is inserted into the insertion hole, abuts and squeezes the limiting rod, and then realizes the extrusion and limiting of the throat 430. In addition, in some other optional embodiments, the throat 430 can also be threadedly connected to the support assembly 100 or the heat sink 120.

[0069] When it is necessary to disassemble the nozzle assembly 400, adjust the fastener 500 so that the throat 430 and the heat sink 120 can move relative to each other, and then move the nozzle assembly 400 downward. The nozzle assembly 400 will successively disengage from the mounting holes on the heat sink 120 and the heating holes 303 on the heating block 310, thereby achieving quick disassembly of the nozzle assembly 400. At this time, the heating block 310 is still connected to the support assembly 100 through the connecting member 200. When it is necessary to install the nozzle assembly 400, after the nozzle assembly 400 is inserted into the heating holes 303 on the heating block 310 and the mounting holes on the heat sink 120 in sequence, adjust the fastener 500 to fix the relative position of the throat 430 and the heat sink 120.

[0070] On the other hand, the present utility model further provides a layered manufacturing device, including the print head device according to any one of the above, including the advantages of any one of the foregoing print head devices, which will not be elaborated here.

[0071] The present utility model further provides the following embodiments:

[0072] Label 1, A print head device, including:

[0073] A support assembly 100;

[0074] A connecting member 200, the connecting member 200 includes a connecting body 210, and the connecting body 210 is connected to the support assembly 100;

[0075] A heating assembly 300, the heating assembly 300 is connected to the connecting body 210;

[0076] A nozzle assembly 400, the nozzle assembly 400 is connected to the support assembly 100, and the heating assembly 300 abuts against the nozzle assembly 400 to heat the nozzle assembly 400.

[0077] Label 2, The print head device according to Label 1, wherein,

[0078] At least a part of the connecting body 210 has elasticity, and the connecting body 210 applies at least an elastic force to the heating assembly 300 to make the heating assembly 300 approach the nozzle assembly 400, so that the heating assembly 300 fits with the nozzle assembly 400.

[0079] Label 3, The print head device according to Label 1, wherein,

[0080] The connecting member 200 further includes a first connecting portion, the first connecting portion is connected to the connecting body 210, and the connecting body 210 is connected to the support assembly 100 through the first connecting portion.

[0081] Label 4, The print head device according to Label 3, wherein,

[0082] The support assembly 100 includes a hanging plate 110 and a heat dissipation block 120. The heat dissipation block 120 is connected to the hanging plate 110, and the nozzle assembly 400 is connected to the heat dissipation block 120.

[0083] The connection body 210 is connected to the hanging plate 110 through a first connection portion.

[0084] Item 5. The print head device according to item 4, wherein

[0085] The hanging plate 110 is provided with a hanging interface 111. The first connection portion includes a first hanging plate 220. The first end of the first hanging plate 220 is connected to the connection body 210. The second end of the first hanging plate 220 is suspended and can elastically move relative to the connection body 210. The connection body 210 is inserted into the hanging interface 111, and the first hanging plate 220 presses against the edge of the hanging interface 111.

[0086] Item 6. The print head device according to item 3, wherein

[0087] The support assembly 100 includes a heat dissipation block 120, and the nozzle assembly 130 is connected to the heat dissipation block 120.

[0088] The connection body 210 is connected to the heat dissipation block 120 through a first connection portion.

[0089] Item 7. The print head device according to item 6, wherein

[0090] The heat dissipation block 120 is provided with a hanging slot 121. The first connection portion includes a second hanging plate 231 and a third hanging plate 232. The first end of the second hanging plate 231 is connected to the connection body 210. The second end of the second hanging plate 231 is suspended and can elastically move relative to the connection body 210. The first end of the third hanging plate 232 is connected to the second hanging plate 231. The second end of the third hanging plate 232 is suspended and can elastically move relative to the second hanging plate 231.

[0091] The second hanging plate 231 is inserted into the hanging slot 121, and the second hanging plate 231 and the third hanging plate 232 respectively press against the opposite inner walls of the hanging slot 121.

[0092] Item 8. The print head device according to item 1, wherein

[0093] The connection body 210 at least includes a first elastic plate 211 and a second elastic plate 212 that are adjacently arranged. The first elastic plate 211 and the second elastic plate 212 are connected. There is a distance between the first elastic plate 211 and the second elastic plate 212, and elastic deformation can occur between the first elastic plate 211 and the second elastic plate 212.

[0094] Item 9. The print head device according to item 1, wherein

[0095] At least one relief opening 213 is formed in the connection body 210, and the nozzle assembly 400 is movably inserted through the relief opening 213 to be connected to the support assembly 100.

[0096] Reference numeral 10. The print head device according to reference numeral 1, wherein

[0097] The connecting member 200 further includes a second connecting portion 240. The second connecting portion 240 is connected to the connection body 210, and the connection body 210 is connected to the heating assembly 300 through the second connecting portion 240.

[0098] Reference numeral 11. The print head device according to reference numeral 10, wherein

[0099] The connection manner between the second connecting portion 240 and the heating assembly 300 includes at least one of clamping, plugging, sliding connection, magnetic attraction connection, snap connection, hanging connection, bonding, and screwing.

[0100] Reference numeral 12. The print head device according to reference numeral 10, wherein

[0101] The heating assembly 300 includes a plugging slot 301, and the second connecting portion 240 is plugged into the plugging slot 301.

[0102] Reference numeral 13. The print head device according to reference numeral 12, wherein

[0103] The nozzle assembly 400 ejects the consumable from the bottom end, and a plugging slot 301 is formed on one side of the heating assembly 300 opposite to the bottom end of the nozzle assembly 400;

[0104] The second connecting portion 240 includes a first connecting plate 241 and at least one first pressing plate 242. The first pressing plate 242 is elastically connected to the first connecting plate 241. The first connecting plate 241 is inserted into the plugging slot 301, and the first pressing plate 242 presses the inner wall of the plugging slot 301.

[0105] Reference numeral 14. The print head device according to reference numeral 12, wherein

[0106] The heating assembly 300 is provided with a plugging slot 301;

[0107] The second connecting portion 240 includes a second connecting plate 243, two sliding plates 244, and at least two second pressing plates 245. The sliding plates 244 are connected to the second connecting plate 243, and at least one second pressing plate 245 is elastically connected to the sliding plates 244. The sliding plates 244 are inserted into the plugging slot 301, and the second pressing plates 245 press the inner wall of the plugging slot 301.

[0108] Reference numeral 15. The print head device according to reference numeral 10, wherein

[0109] The heating component 300 includes a clamping groove 302, and the connecting body 210 is clamped in the clamping groove 302 through the second connecting portion 240;

[0110] The clamping groove 302 is an annular groove, and the second connecting portion 240 includes a clamping interface 246 formed on the connecting member 200. At least the edges of the clamping interface 246 are inserted into the clamping groove 302 from both radial sides of the clamping groove 302.

[0111] Reference numeral 16. The print head device according to reference numeral 10, wherein

[0112] The heating component 300 includes a heating block 310 and a heating element 320, and the second connecting portion 240 is connected to the heating block 310;

[0113] The heating element 320 is fixedly fitted with the heating block 310 through the second connecting portion 240;

[0114] Alternatively, the heating element 320 is connected to the heating block 310.

[0115] Reference numeral 17. The print head device according to reference numeral 16, wherein

[0116] The heating component 300 further includes a temperature measuring element 330, and the temperature measuring element 330 is connected to the heating block 310.

[0117] Reference numeral 18. The print head device according to reference numeral 1, wherein

[0118] The heating component 300 includes a heating hole 303, and the nozzle assembly 400 is inserted into the heating hole 303.

[0119] Reference numeral 19. The print head device according to reference numeral 18, wherein

[0120] The nozzle assembly 400 includes a nozzle 410, a main body 420, and a throat tube 430. The nozzle 410 is connected to the main body 420, the throat tube 430 is connected to the main body 420, the main body 420 is inserted into the heating hole 303, and the throat tube 430 is connected to the support assembly 100.

[0121] Reference numeral 20. The print head device according to reference numeral 19, wherein

[0122] The outer diameter of the main body 420 increases in the direction close to the nozzle 410, the inner wall profile of the heating hole 303 is adapted to the outer wall profile of the main body 420, and the main body 420 is in surface contact with the heating hole 303.

[0123] Reference numeral 21. The print head device according to reference numeral 1, wherein

[0124] The nozzle assembly 400 is provided with a fastening groove 401. The support assembly 100 is provided with a mounting hole and a jack communicating with the mounting hole. The printhead device further includes a fastener 500. The nozzle assembly 400 is inserted into the mounting hole, the fastener 500 is inserted into the jack, and at least a part of the fastener 500 is embedded in the fastening groove 401 to fix the nozzle assembly 400.

[0125] Reference numeral 22. The printhead device according to reference numeral 2, wherein

[0126] The elastic force applied by the connection body 210 to the heating assembly 300 is 0.5 N to 10 N.

[0127] Reference numeral 23. An additive manufacturing device, which includes the printhead device according to any one of the above reference numerals 1-22.

[0128] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A print head device, characterized in that: include: Support components; A connecting member, the connecting member comprising a connecting body, the connecting body being connected to the supporting assembly; A heating component connected to the connecting body; A nozzle assembly is connected to the support assembly, and the heating assembly contacts the nozzle assembly to heat the nozzle assembly.

2. The print head device according to claim 1, characterized in that: At least a partial area of ​​the connection body is elastic, and the connection body at least applies an elastic force to the heating component to make the heating component close to the nozzle component, so that the heating component and the nozzle component are fitted.

3. The print head device according to claim 1, characterized in that: The connecting member further includes a first connecting portion, the first connecting portion is connected to the connecting body, and the connecting body is connected to the supporting assembly through the first connecting portion.

4. The print head device according to claim 3, characterized in that: The support assembly includes a hanging plate and a heat sink block, the heat sink block is connected to the hanging plate, and the nozzle assembly is connected to the heat sink block; The connecting body is connected to the hanging plate through the first connecting portion.

5. The print head device according to claim 4, characterized in that: A hanging interface is provided on the hanging plate, and the first connecting part includes a first hanging plate, a first end of the first hanging plate is connected to the connecting body, a second end of the first hanging plate is suspended and can be elastic relative to the connecting body, the connecting body is inserted into the hanging interface, and the first hanging plate presses against the edge of the hanging interface.

6. The print head device according to claim 3, characterized in that: The support assembly includes a heat sink block, and the nozzle assembly is connected to the heat sink block; The connecting body is connected to the heat dissipation block through the first connecting portion.

7. The print head device according to claim 6, characterized in that: The heat sink block is provided with a hanging groove, the first connection portion includes a second hanging plate and a third hanging plate, the first end of the second hanging plate is connected to the connection body, the second end of the second hanging plate is suspended and can be elastic relative to the connection body, the first end of the third hanging plate is connected to the second hanging plate, the second end of the third hanging plate is suspended and can be elastic relative to the second hanging plate; The second hanging plate is inserted into the hanging slot, and the second hanging plate and the third hanging plate respectively press against the opposite inner walls of the hanging slot.

8. The print head device according to claim 1, characterized in that: The connecting body at least includes a first spring plate and a second spring plate that are adjacent to each other, the first spring plate and the second spring plate are connected, there is a distance between the first spring plate and the second spring plate, and elastic deformation can occur between the first spring plate and the second spring plate.

9. The print head device according to claim 1, characterized in that: At least one clearance opening is formed on the connecting body, and the nozzle assembly is movably connected to the clearance opening to be connected with the supporting assembly.

10. The print head device according to claim 1, characterized in that: The connecting member further comprises a second connecting portion, the second connecting portion is connected to the connecting body, and the connecting body is connected to the heating assembly via the second connecting portion.

11. The print head device according to claim 10, characterized in that: The connection method between the second connecting part and the heating component includes at least one of clamping, plugging, sliding connection, magnetic connection, snap connection, hanging, bonding, and screw connection.

12. The print head device according to claim 10, characterized in that: The heating component comprises a plug-in slot, and the second connecting portion is plugged into the plug-in slot.

13. The print head device according to claim 12, characterized in that: The nozzle assembly sprays consumables from the bottom end, and the heating assembly is provided with the plug-in slot on one side of the bottom end opposite to the nozzle assembly; The second connecting portion includes a first connecting plate and at least one first extrusion plate, wherein the first extrusion plate is elastically connected to the first connecting plate, the first connecting plate is inserted into the plug-in slot, and the first extrusion plate squeezes the inner wall of the plug-in slot.

14. The print head device according to claim 12, characterized in that: The heating component is provided with the plug-in slot; The second connecting portion includes a second connecting plate, two sliding plates and at least two second extrusion plates, the sliding plate is connected to the second connecting plate, at least one second extrusion plate is elastically connected to the sliding plate, the sliding plate is inserted into the plug-in slot, and the second extrusion plate squeezes the inner wall of the plug-in slot.

15. The print head device according to claim 10, characterized in that: The heating assembly comprises a clamping groove, and the connecting body is clamped in the clamping groove through the second connecting portion; The clamping groove is an annular groove, and the second connecting portion includes a clamping interface opened on the connecting member, and the edge of the clamping interface is embedded in the clamping groove at least from two radial sides of the clamping groove.

16. The print head device according to claim 10, characterized in that: The heating assembly includes a heating block and a heating element, and the second connecting portion is connected to the heating block; The heating element is fixed to the heating block through the second connecting portion; Alternatively, the heating element is connected to the heating block.

17. The print head device according to claim 16, characterized in that: The heating assembly also includes a temperature measuring component, and the temperature measuring component is connected to the heating block.

18. The print head device according to claim 1, characterized in that: The heating assembly comprises a heating hole, and the nozzle assembly is plugged into the heating hole.

19. The print head device according to claim 18, characterized in that: The nozzle assembly comprises a nozzle, a main body and a throat, the nozzle is connected to the main body, the throat is connected to the main body, the main body is plugged into the heating hole, and the throat is connected to the supporting assembly.

20. The print head device according to claim 19, characterized in that: The outer diameter of the main body increases in a direction approaching the nozzle, the inner wall profile of the heating hole is matched with the outer wall profile of the main body, and the main body abuts against the heating hole surface.

21. The print head device according to claim 1, characterized in that: The nozzle assembly is provided with a fastening groove, the support assembly is provided with a mounting hole and a socket connected to the mounting hole, the print head device also includes a fastener, the nozzle assembly is plugged into the mounting hole, the fastener is inserted into the socket, and the fastener is at least partially embedded in the fastening groove to fix the nozzle assembly.

22. The print head device according to claim 2, characterized in that: The elastic force applied by the connecting body to the heating component is 0.5N-10N.

23. A laminate manufacturing device, characterized in that: A print head device comprising any one of claims 1-22.

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