Integrated 3D printer head

By using an integrated frame and a geared roller design, the problem of low stability and high cost of traditional 3D printer heads is solved, achieving higher structural strength, stability and flexibility, and reducing assembly difficulty and cost.

CN223750273UActive Publication Date: 2026-01-02NANTONG FENGYUAN MOLDING TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520255594.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2026-01-02
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

Traditional 3D printer heads use a spliced ​​structure, which results in lower stability, affects printing accuracy, and requires elastic extrusion components, increasing cost and assembly difficulty.

Method used

It adopts an integrated frame structure, with the driving roller and driven roller meshing through a toothed disc and using a rubber sleeve to connect with the roller, eliminating the elastic extrusion component. Combined with the cover plate shielding and the visible through-slot design, it is easy to observe the material feeding status.

Benefits of technology

It improves the structural strength and stability of the print head, reduces costs, enhances flexibility and applicability, simplifies the structure, and improves printing accuracy.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223750273U_ABST
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Abstract

A first groove is formed in the front side face of the upper portion of a machine frame, a second groove is formed in the front side face of the lower portion of the machine frame, the lower portion of the second groove is communicated with the outside of the machine frame and provided with a bottom plate, a ventilation opening is formed in the position, located at the second groove, of the machine frame in a penetrating mode, and a cover plate is arranged on the front side face of the machine frame. The driving rolling wheel and the driven rolling wheel are arranged in the first groove, fluted discs are arranged at the ends, close to the motor, of the driving rolling wheel and the driven rolling wheel, the driving rolling wheel and the driven rolling wheel are meshed through the fluted discs, and the driving rolling wheel and the driven rolling wheel are sleeved with rubber sleeves. The bottom of the throat pipe is in threaded connection with the top of the hot melting connecting base through a threaded connector, and the nozzle is in threaded connection with the bottom of the hot melting connecting base through a threaded connector. The hot melting machine is reasonable in structure, higher in structural strength and better in stability, does not need to be provided with an elastic extrusion assembly to be matched with a driven roller, and is simpler in structure and lower in cost.
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Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printer head technical field, concretely is a kind of integrated 3D printer head. BACKGROUND

[0002] 3D printer is also called three-dimensional printer, and it is a kind of cumulative manufacturing technology, a kind of machine of rapid prototyping technology, it is a kind of three-dimensional object that is manufactured by using special wax material, powder-like metal or plastic and other adhesive materials through printing layer by layer based on digital model file.At present stage, three-dimensional printer is used to manufacture product.Layer-by-layer printing is used to construct object technology.The principle of 3D printer is that data and raw materials are put into 3D printer, and machine can build product layer by layer according to program.

[0003] Traditional 3D printer head, its rack generally adopts splicing structure, so that stability is low when printing, thereby affecting printing precision, and when driven roller cooperates with driving roller, driven roller generally needs elastic extrusion assembly to cooperate, so that driven roller extrudes material, and material is located between driving roller and driven roller, but the installation of elastic extrusion assembly leads to cost increase and assembly difficulty improvement, therefore, an improved technology is urgently needed to solve the problem existing in prior art. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of integrated 3D printer head, adopt integrated rack, structural strength is higher, stability is better, and adopt cover plate to shield, and cover plate is located at the visual slot of first recess, it is convenient to observe the state of material feeding, while driving roller and driven roller are engaged by tooth disc, simultaneously adopt rubber sleeve and rubber sleeve is respectively sleeved with driving roller and driven roller, so as to be replaced according to different thickness of material, flexibility and greatly improved application range, and without setting elastic extrusion assembly, structure is simpler, cost is lower, to solve the problem proposed in above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of integrated 3D printer head, including rack, feeding mechanism, heat dissipation mechanism, hot melting component and nozzle;

[0006] The first recess is set in the front side of the upper part of the rack, the second recess is set in the front side of the lower part of the rack, the lower part of the second recess is communicated with the outside of the rack and is installed with bottom plate, the top end of the first recess of the rack is provided with feeding guide sleeve, the inner thread sleeve is arranged between the first recess and the second recess of the rack, the ventilation opening is arranged through the second recess of the rack, the front side of the rack is provided with cover plate, and the visual slot is arranged at the middle position of the first recess of the cover plate.

[0007] The feeding mechanism comprises a driving roller, a driven roller and a motor, the driving roller and the driven roller are arranged in the first groove, the rear side of the frame is provided with the motor at the first groove, the output shaft of the motor penetrates the frame and is connected with the driving roller, the driving roller and the driven roller are provided with gear plates at the end close to the motor and are meshed with each other through the gear plates, the driving roller and the driven roller are externally provided with rubber sleeves, and the driven roller is rotationally connected with the frame through the rotating shaft.

[0008] The heat dissipation mechanism comprises a throat pipe and a heat dissipation fan, the top end of the throat pipe is fixedly connected with the internally threaded sleeve through a threaded interface, the bottom of the throat pipe penetrates the bottom plate, and the heat dissipation fan is arranged on the rear side of the frame and located at the air vent of the second groove.

[0009] The hot melting assembly comprises a hot melting connecting seat, the top of the hot melting connecting seat is connected with the bottom plate, the inside of the hot melting connecting seat is provided with a channel, threads are arranged at both ends of the channel, the bottom of the throat pipe is threadedly connected with the top of the channel of the hot melting connecting seat through a threaded interface, plug holes are arranged at the two sides of the hot melting connecting seat, a heating pipe and a temperature sensor are respectively arranged in the plug holes at the two sides of the hot melting connecting seat, and the nozzle is threadedly connected with the bottom of the channel of the hot melting connecting seat through a threaded interface.

[0010] Preferably, the utility model provides a kind of integrated 3D printer head, wherein the rear side of the frame is provided with extension plate on both sides, the outer end of the extension plate is connected with the both sides of connecting plate, the outside of the connecting plate is provided with fixed block, the fixed block is provided with a plurality of guide holes, and the fixed block is further provided with screw pair nut.

[0011] Preferably, the utility model provides a kind of integrated 3D printer head, wherein the rear side of the frame is provided with extension plate on both sides, the outer end of the extension plate is connected with the both sides of connecting plate, the outside of the connecting plate is provided with fixed block, the fixed block is provided with a plurality of guide holes, and the fixed block is further provided with screw pair nut.

[0012] Preferably, the utility model provides a kind of integrated 3D printer head, wherein the rear side of the frame is provided with extension plate on both sides, the outer end of the extension plate is connected with the both sides of connecting plate, the outside of the connecting plate is provided with fixed block, the fixed block is provided with a plurality of guide holes, and the fixed block is further provided with screw pair nut.

[0013] Preferably, the utility model provides a kind of integrated 3D printer head, wherein the rear side of the frame is provided with extension plate on both sides, the outer end of the extension plate is connected with the both sides of connecting plate, the outside of the connecting plate is provided with fixed block, the fixed block is provided with a plurality of guide holes, and the fixed block is further provided with screw pair nut.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] (1) the structure strength is higher, the stability is better, and the cover plate is arranged to shield, and the cover plate is provided with a visual slot at the first groove, so that the state of material feeding can be observed.

[0016] (2) the driving roller and the driven roller are engaged through the gear plate, and rubber sleeves are arranged on the driving roller and the driven roller, so that the rubber sleeves are sleeved with the driving roller and the driven roller respectively, so that the rubber sleeves can be replaced according to different thicknesses of materials, and flexibility and application range are greatly improved.

[0017] (3) the elastic extrusion assembly is not required to push the driven wheel, so that the structure is simpler, and the cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the utility model;

[0019] Figure 2 It is a side view structural schematic diagram of the utility model;

[0020] Figure 3 It is a front view structural schematic diagram (not showing the cover plate) of the utility model;

[0021] Figure 4 It is a top view sectional structural schematic diagram of the utility model;

[0022] Figure 5 It is a side view sectional structural schematic diagram of the utility model.

[0023] In the drawing: rack 1, first groove 2, second groove 3, bottom plate 4, feeding guide sleeve 5, internal thread sleeve 6, ventilation opening 7, cover plate 8, visible through slot 9, driving roller 10, driven roller 11, motor 12, gear plate 13, rubber sleeve 14, throat pipe 15, heat dissipation fan 16, hot melt connecting seat 17, channel 18, heating tube 19, temperature sensor 20, nozzle 21, extension plate 22, connecting plate 23, fixed block 24, guide hole 25, screw pair nut 26, heat dissipation hole 27, limiting ring 28, fin 29. DETAILED DESCRIPTION

[0024] The technical scheme of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model;

[0025] It should be noted that in the description of the utility model, it should be noted that the terms "inner", "outer", "upper", "lower", "two sides", "one end", "the other end", "left", "right" and the like indicate the orientation or positional relationship shown in the drawing, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0026] Referring to Figures 1-5 The utility model provides a technical scheme: a kind of integrated 3D printer head, including rack 1, feeding mechanism, heat dissipation mechanism, hot melt component and nozzle 21;

[0027] The first recess 2 is formed in the front side of the upper part of the rack 1, and the second recess 3 is formed in the front side of the lower part of the rack 1. The lower part of the second recess 3 is in communication with the outside of the rack 1 and is provided with a bottom plate 4. The top end of the rack 1 located in the first recess 2 is provided with an inlet guide sleeve 5. The inner thread sleeve 6 is arranged between the first recess 2 and the second recess 3 of the rack 1. The ventilation opening 7 is formed through the second recess 3 of the rack 1. The front side of the rack 1 is provided with a cover plate 8. The visual slot 9 is arranged at the middle position of the first recess 2 of the cover plate 8. The heat dissipation holes 27 are formed in the two sides of the second recess 3 of the rack 1 and the second recess 3 of the cover plate 8. When in use, the wind of the heat dissipation fan is smoothly discharged from the heat dissipation holes 27. The two sides of the rear side of the rack 1 are provided with extension plates 22. The outer ends of the extension plates 22 are connected with the two sides of the connecting plate 23. The outer side of the connecting plate 23 is provided with a fixing block 24. The fixing block 24 is provided with a plurality of guide holes 25. The fixing block 24 is also provided with a screw rod pair nut 26. The fixing block is matched with the guide rod and the screw rod on the horizontal rack of the 3D printer, so as to realize the horizontal movement of the integrated 3D printer head.

[0028] The feeding mechanism includes a driving roller 10, a driven roller 11 and a motor 12. The driving roller 10 and the driven roller 11 are arranged in the first recess 2. The rear side of the rack 1 and located in the first recess 2 is provided with the motor 12. The output shaft of the motor 12 penetrates the rack 1 and is connected with the driving roller 10. The end of the driving roller 10 and the driven roller 11 close to the motor 12 is provided with a toothed disc 13 and is meshed with each other through the toothed disc 13. The outer part of the driving roller 10 and the driven roller 11 is provided with a rubber sleeve 14. The driven roller 11 is rotatably connected with the rack 1 through a rotating shaft. The rotating shaft of the driven roller 11 and located in the rear side of the rack 1 is provided with a limiting ring 28 through a limiting pin, so as to prevent the driven roller 11 from falling off.

[0029] The heat dissipation mechanism includes a throat pipe 15 and a heat dissipation fan 16. The top end of the throat pipe 15 is fastened and connected with the inner thread sleeve 6 through a threaded interface. The bottom part of the throat pipe 15 penetrates the bottom plate 4. The heat dissipation fan 16 is arranged on the rear side of the rack 1 and located at the ventilation opening 7 of the second recess 3. The outer part of the throat pipe 15 is uniformly provided with fins 29, so as to ensure the heat dissipation performance of the throat pipe 15.

[0030] The hot melt assembly comprises a hot melt connecting seat 17, the top of which is connected with the bottom plate 4, and a channel 18 is arranged in the hot melt connecting seat 17, both ends of the channel 18 are provided with threads, the bottom of the throat pipe 15 is threadedly connected with the top of the channel 18 of the hot melt connecting seat 17 through a threaded interface, and the hot melt connecting seat 17 is provided with insertion holes on both sides, and a heating tube 19 and a temperature sensor 20 are respectively arranged in the insertion holes on both sides of the hot melt connecting seat 17, and a nozzle 21 is threadedly connected with the bottom of the channel 18 of the hot melt connecting seat 17 through a threaded interface.

[0031] The installation method and use principle are as follows: firstly, the driving roller 10 and the driven roller 11 are respectively installed in the first groove 2 of the rack 1, and the driven roller 11 is limited through the limiting ring 28, the motor 12 is installed on the rear side of the rack 1, and the output shaft of the motor 12 is connected with the driving roller 10, at this time, the toothed disc 13 of the driving roller 10 is engaged with the toothed disc 13 of the driven roller 11, then the top end of the throat pipe 15 is tightly connected with the bottom of the inner threaded sleeve 6 through a threaded interface, the bottom plate 4 is installed on the bottom of the rack 1 through bolts, and the bottom of the throat pipe 15 passes through the bottom plate 4, then the hot melt connecting seat 17 is connected with the bottom plate 4 through bolts, the bottom of the throat pipe 15 is connected with the hot melt connecting seat 17 through a threaded interface, and the nozzle 21 is installed at the bottom of the hot melt connecting seat 17 through a threaded interface, finally, the heat dissipation fan 16 is installed on the rear side of the rack 1 and located at the air vent 7 of the second groove 3, the connecting plate 23 is connected with the extension plate 22 through bolts, the cover plate 8 is installed on the front end of the rack 1 through bolts, and the assembly is completed. In use, according to the thickness of the material, the appropriate rubber sleeve 14 is selected, and the rubber sleeve 14 is sleeved on the driving roller 10 and the driven roller 11 respectively, the material is put into the first groove 2 from the feeding guide sleeve 5 at the top end of the rack 1, passes between the driving roller 10 and the driven roller 11 and cooperates with the two rubber sleeves 14, and then is inserted into the throat pipe 15. The motor 12 is started, the motor 12 drives the driving roller 10 to rotate, the driving roller 10 drives the driven roller 11 to rotate through the cooperation of the toothed disc 13, the material is pressed down, the inside of the hot melt connecting seat 17 is heated through the heating tube 19, the material is melted in the hot melt connecting seat 17, then the material continuously presses down and is extruded from the nozzle 21, and 3D printing is realized. The utility model has the advantages of reasonable structure, higher structural strength, better stability, cover plate 8 shielding, the cover plate 8 being provided with a visual slot 9 at the first groove 2, convenient observation of the material feeding state, the driving roller 10 and the driven roller 11 being engaged through the toothed disc 13, the rubber sleeve 14 being adopted and being sleeved with the driving roller 10 and the driven roller 11 respectively, convenient replacement according to different thickness of the material, great improvement of flexibility and application range, no need to set up an elastic extrusion assembly to push the driven roller, simpler structure and lower cost.

[0032] The parts not described in the utility model are the known technology of the person skilled in the art.

[0033] Finally to be explained is: the above specific embodiments only to illustrate the technical solutions of the utility model and not limit, although the utility model is described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the utility model can be modified and equivalent replaced, without departing from the spirit and scope of the technical solutions of the utility model, it should be covered in the scope of the claims of the utility model.

Claims

1. An integrated 3D printer head, characterized by: The rack (1), the feeding mechanism, the heat dissipation mechanism, the hot melt assembly and the nozzle (21); The upper front side of the rack (1) is provided with a first groove (2), and the lower front side of the rack (1) is provided with a second groove (3). The lower part of the second groove (3) is communicated with the outside of the rack (1) and is provided with a bottom plate (4). The top end of the rack (1) located in the first groove (2) is provided with an inlet guide sleeve (5). The rack (1) located between the first groove (2) and the second groove (3) is provided with an internal thread sleeve (6). The rack (1) located at the second groove (3) is provided with a ventilation opening (7). The front side of the rack (1) is provided with a cover plate (8). The cover plate (8) located at the middle position of the first groove (2) is provided with a visual slot (9). The feeding mechanism comprises a driving roller (10), a driven roller (11) and a motor (12). The driving roller (10) and the driven roller (11) are arranged in the first groove (2). The rear side of the rack (1) located at the first groove (2) is provided with a motor (12). The output shaft of the motor (12) penetrates the rack (1) and is connected with the driving roller (10). The driving roller (10) and the driven roller (11) are provided with a gear disc (13) at one end close to the motor (12) and are engaged with each other through the gear disc (13). The driving roller (10) and the driven roller (11) are provided with a rubber sleeve (14) outside. The driven roller (11) is rotatably connected with the rack (1) through a rotating shaft. The heat dissipation mechanism comprises a throat pipe (15) and a heat dissipation fan (16). The top end of the throat pipe (15) is fastened and connected with the internal thread sleeve (6) through a threaded interface. The bottom of the throat pipe (15) penetrates the bottom plate (4). The heat dissipation fan (16) is arranged on the rear side of the rack (1) and located at the ventilation opening (7) of the second groove (3). The hot melt assembly comprises a hot melt connecting seat (17). The top of the hot melt connecting seat (17) is connected with the bottom plate (4). The inside of the hot melt connecting seat (17) is provided with a channel (18). The two ends of the channel (18) are provided with threads. The bottom of the throat pipe (15) is threadedly connected with the top of the channel (18) of the hot melt connecting seat (17) through a threaded interface. The hot melt connecting seat (17) is provided with a jack on both sides. The hot melt connecting seat (17) is provided with a heating tube (19) and a temperature sensor (20) on both sides of the jack. The nozzle (21) is threadedly connected with the bottom of the channel (18) of the hot melt connecting seat (17) through a threaded interface.

2. The integrated 3D printer head of claim 1, wherein: The rear side of the rack (1) is provided with an extension plate (22) on both sides. The outer end of the extension plate (22) is connected with both sides of a connecting plate (23). The outer side of the connecting plate (23) is provided with a fixing block (24). The fixing block (24) is provided with a plurality of guide holes (25). The fixing block (24) is further provided with a screw pair nut (26).

3. The one-piece 3D printer head of claim 1, wherein: The rack (1) located at both sides of the second groove (3) and the cover plate (8) located at the second groove (3) are provided with heat dissipation holes (27).

4. The integrated 3D printer head of claim 1, wherein: The rotation shaft of the driven roller (11) at the back side of the frame (1) is provided with a limiting ring (28) through a limiting pin.

5. The one-piece 3D printer head of claim 1, wherein: The throat pipe (15) is uniformly provided with fins (29) outside.