CN214820892U - Integrated 3D printing nozzle suitable for X-Y plane motion - Google Patents
Integrated 3D printing nozzle suitable for X-Y plane motion Download PDFInfo
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- CN214820892U CN214820892U CN202120568829.7U CN202120568829U CN214820892U CN 214820892 U CN214820892 U CN 214820892U CN 202120568829 U CN202120568829 U CN 202120568829U CN 214820892 U CN214820892 U CN 214820892U
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Abstract
The utility model relates to an integrated form 3D prints shower nozzle suitable for X-Y planar motion, it belongs to 3D and prints technical field. The utility model discloses a shower nozzle support, including a motor, an end cap, a controller, and a cover plate, the crowded silk wheel, roller bearing, compound slider round pin axle etc. two linear bearing install respectively to fix on the shower nozzle support in order to realize X-Y plane function, 3D prints the silk material and passes plastics feeding hose in proper order, crowded silk wheel and roller bearing, metal choke is until the nozzle, can adjust the packing force of roller bearing to the silk material through adjustment housing screw, the inside design of shower nozzle support has the cooling runner of following shape and adopts the circulating water cooling mode, 3D prints the silk material in the resistance heating piece heating melting nozzle, motor drive crowded silk wheel is rotatory to drive the silk material to nozzle direction carry and with the 3D of nozzle internal heating molten state print silk material extrusion moulding. The utility model discloses possess simple structure reliable, part is small in quantity, inertial mass is little, advantages such as cooling efficiency height.
Description
Technical Field
The utility model relates to a 3D prints the shower nozzle, concretely relates to integrated form 3D prints shower nozzle suitable for X-Y planar motion, it belongs to 3D printing apparatus technical field.
Background
A 3D printer, also known as additive manufacturing equipment, is one type of rapid prototyping equipment that constructs an object by printing layer-by-layer using bondable materials, such as powdered metal or plastic, based on a digital model file. According to the difference of printing mode and printing material, 3D printer can be divided into different categories. The Fused Deposition (FDM) 3D printer is the most widely used 3D printing device at present, and the main forming principle is that a nozzle is adopted to heat a filamentous thermoplastic material to a molten state, and then the filamentous thermoplastic material is uniformly extruded and formed on a working platform according to a predetermined track of each layer of the cross section of a part, so that the 3D printing nozzle is a key part for directly determining the working performance of the fused deposition 3D printer.
The 3D printing nozzle of the Fused Deposition (FDM) 3D printer at the present stage is large in number of parts and large in overall mass, and generally adopts an air-cooled cooling mechanism, so that the problems of poor reliability and stability, large inertia mass, poor cooling effect and the like of the nozzle generally exist, and the technical requirements of high reliability, high forming speed and the like of an industrial fused deposition 3D printer are difficult to achieve.
Therefore, it is especially necessary to develop an integrated 3D printing nozzle with simple and reliable structure, small number of parts, small inertial mass and high cooling efficiency to meet the technical requirements of industrial 3D printers for high-reliability and high-speed 3D printing and forming.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design reasonable, simple structure is reliable, part is small in quantity, inertial mass is little, cooling efficiency is high, use and maintain convenient integrated form 3D who is applicable to X-Y plane motion and print the shower nozzle.
The utility model provides a technical scheme that above-mentioned problem adopted is: the integrated 3D printing nozzle suitable for X-Y plane motion comprises a motor, a nozzle support and a wire extruding wheel, wherein the motor is connected with the nozzle support, and the wire extruding wheel is connected with the motor, and is characterized in that: the sprayer comprises a sprayer support, a composite sliding block pin shaft, a roller bearing, a pressing base, a pressing screw, a pressing spring, a metal throat pipe and a nozzle, wherein the composite sliding block pin shaft is arranged on the sprayer support, and the roller bearing is connected with the composite sliding block pin shaft; the pressing base is fixed on the spray head support, a threaded through hole is formed in the pressing base, and a pressing screw is installed in the threaded through hole; one end face of the compression spring is tightly attached to one end face of the slider of the composite slider pin shaft, and the other end face of the compression spring is tightly attached to the end face of the head of the compression screw; the metal throat and the nozzle are both arranged at the lower part of the spray head support, and the lower end face of the metal throat is tightly attached to the upper end face of the nozzle.
Preferably, the spray head support of the utility model is provided with a first mounting through hole, a first threaded through hole, a first through hole, a second through hole, a first mounting hole, a second mounting hole, a cooling water outlet hole, a third through hole, a first threaded hole, a T-shaped chute, a second threaded hole, a fourth through hole and a second mounting through hole, and the upper part of the spray head support is respectively provided with the first mounting through hole and the second mounting through hole which are horizontally arranged and mutually staggered and vertical; a first threaded through hole in the vertical direction is formed in the position, located on the upper side of the motor output shaft, of the spray head support; the lower part of the spray head support is positioned at the left side and the right side of the spray nozzle and is respectively provided with a first mounting hole and a second mounting hole in the horizontal direction; the motor and the nozzle support are fixedly connected by four screws which respectively penetrate through a first through hole, a second through hole, a third through hole and a fourth through hole on the nozzle support; an internal conformal cooling flow channel is arranged at the lower part of the spray head support around the metal throat pipe, and a cooling water inlet hole and a cooling water outlet hole are respectively arranged on the side surface of the spray head support of the cooling flow channel; the pressing base is matched with the first threaded hole and the second threaded hole in an installing mode; the composite sliding block pin shaft is arranged in a T-shaped chute of the spray head support.
Preferably, the device also comprises a plastic feeding hose and a standard pneumatic quick connector, wherein one end of the plastic feeding hose is arranged on the standard pneumatic quick connector, the standard pneumatic quick connector is fixed on the spray head support, the plastic feeding hose is a hollow long cylindrical pipe, and the diameter of a central round hole of the plastic feeding hose is 0.5-1 mm larger than the outer diameter of the 3D printing wire for forming; the standard pneumatic quick connector is fixed in the first threaded through hole in a threaded connection mode.
As preferred, compound slider round pin axle one end is rectangle slider, this compound slider round pin axle other end is cylindrical round pin axle, and the shower nozzle support openly lies in motor output shaft left side position and opens and have horizontal direction T type spout, and the slider end of compound slider round pin axle is installed in the T type spout of shower nozzle support through clearance fit and is constituteed linear guide motion pair rather than.
Preferably, gyro wheel bearing's bearing inner circle passes through interference fit and installs the pin shaft end at compound slider round pin axle.
Preferably, the spray head support is further provided with a second threaded through hole, and the metal throat pipe is fixed at the upper end of the second threaded through hole in the vertical direction at the lower part of the spray head support in a threaded connection mode.
Preferably, the nozzle adopts the threaded connection mode to fix two lower extremes of vertical direction screw thread through-hole in shower nozzle support lower part position, and under the metal choke terminal surface and the close laminating of nozzle up end and guarantee nozzle and metal choke coaxial arrangement.
Compared with the prior art, the utility model, have following advantage and effect: 1) the 3D printing nozzle support integrates the X-Y plane motion support function, the feeding driving and guiding support function and the heating, melting, depositing and printing support function, the 3D printing nozzle adopts a circulating water cooling mode, a conformal cooling runner is designed in the nozzle support, a cooling fan assembly adopted by a traditional air cooling mode is omitted, the integration level is high, the number of parts is small, the reliability is good, the cooling efficiency is high, the integral inertia quality is small, the action response is fast, and the 3D printing nozzle support is particularly suitable for the application field of industrial-grade high-speed 3D printing; 2) the pressing force of the wire extruding wheel on the 3D printing wire can be adjusted by adjusting the pressing screw, the plastic feeding hose, the metal throat pipe, the nozzle and the like are fixedly installed in a threaded connection mode, and the plastic feeding hose, the metal throat pipe and the nozzle which are matched can be quickly detached and replaced when wires with different diameters are replaced, so that the use and maintenance are convenient.
Drawings
Fig. 1 is a schematic view of an overall assembly structure according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a nozzle holder according to an embodiment of the present invention.
In fig. 1: the device comprises a spray head support 1, a standard pneumatic quick connector 2, a wire extruding wheel 3, a composite slide block pin shaft 4, a plastic water inlet hose 5, a metal throat pipe 6, a first resistance heating block 7, a nozzle 8, a second resistance heating block 9, a plastic water outlet hose 10, a pressing base 11, a pressing screw 12, a pressing spring 13, a roller bearing 14, a motor 15, a first linear bearing 16, a plastic feeding hose 17 and a second linear bearing 18;
in fig. 2: the mounting structure comprises a mounting through hole I1-01, a threaded through hole I1-02, a through hole I1-03, a threaded through hole II 1-04, a through hole II 1-05, a mounting hole I1-06, a mounting hole II 1-07, a cooling water outlet hole 1-08, a through hole III 1-09, a threaded hole I1-10, a T-shaped sliding groove 1-11, a threaded hole II 1-12, a through hole IV 1-13 and a mounting through hole II 1-14.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
Referring to fig. 1 to 2, the integrated 3D printing nozzle suitable for X-Y plane motion according to the present embodiment includes a nozzle support 1, a standard pneumatic quick connector 2, a filament extruding wheel 3, a composite slider pin 4, a plastic water inlet hose 5, a metal throat 6, a first resistance heating block 7, a nozzle 8, a second resistance heating block 9, a plastic water outlet hose 10, a pressing base 11, a pressing screw 12, a pressing spring 13, a roller bearing 14, a motor 15, a first linear bearing 16, a plastic feeding hose 17, and a second linear bearing 18.
The nozzle support 1 of the embodiment is made of low-density high-thermal-conductivity aluminum alloy material, two horizontal mounting through holes I1-01 and two mounting through holes II 1-14 which are mutually perpendicular in a staggered mode are formed in the upper portion of the nozzle support 1, a linear bearing I16 is installed and fixed in the mounting through holes II 1-14, and a linear bearing II 18 is installed and fixed in the mounting through holes I1-01.
In the embodiment, the motor 15 adopts a servo motor or a stepping motor, four 4 screws respectively penetrate through a first through hole 1-03, a second through hole 1-05, a third through hole 1-09 and a fourth through hole 1-13 on the spray head support 1 to connect and fix the motor 15 and the spray head support 1, and the motor 15 is horizontally and transversely installed and fixed on the back surface of the middle position of the spray head support 1; the wire extruding wheel 3 is fixed on the output shaft of the motor 15 and can only do radial rotation movement along with the motor shaft.
In the embodiment, one end of a composite slider pin shaft 4 is a rectangular slider, the other end of the composite slider pin shaft is a cylindrical pin shaft, a horizontal T-shaped chute 1-11 is arranged at the left side position of an output shaft of a motor 15 on the front surface of a spray head support 1, the slider end of the composite slider pin shaft 4 is arranged in the T-shaped chute 1-11 of the spray head support 1 through clearance fit and forms a linear guide rail kinematic pair with the same, a U-shaped groove is arranged on the outer bearing ring of a roller bearing 14, the arc radius of the groove is 1mm-2mm larger than that of a 3D printing silk material, and the inner bearing ring of the roller bearing 14 is fixedly arranged at the pin shaft end of the composite slider pin shaft 4 through interference fit, so that the roller bearing 14 can do radial rotary motion around the composite slider pin shaft 4 and do reciprocating linear motion back and forth along the T-shaped chutes 1-11 along with the composite slider pin shaft 4.
In the embodiment, the pressing base 11 is fixedly installed on one side of a T-shaped chute 1-11 of the spray head support 1 in a threaded connection mode through a first threaded hole 1-10 and a second threaded hole 1-12, a threaded through hole is formed in the middle of the pressing base 11, the pressing screw 12 is installed in the threaded through hole, the pressing spring 13 is installed in the T-shaped chute 1-11, one end face of the pressing spring 13 is tightly attached to one end face of a slide block of the composite slide block pin shaft 4, and the other end face of the pressing spring 13 is tightly attached to the end face of the head of the pressing screw 12.
In the embodiment, a nozzle support 1 is provided with a vertical threaded through hole I1-02 at the upper side of a motor output shaft, and a standard pneumatic quick connector 2 is fixedly installed in the threaded through hole I1-02 in a threaded connection mode; the plastic feeding hose 17 is a hollow long cylindrical tube, the diameter of a central circular hole of the plastic feeding hose is designed to be 0.5mm-1mm larger than the outer diameter of the 3D printing filament for forming, and one end of the plastic feeding hose 17 is fixedly arranged on the standard pneumatic quick connector 2.
In the embodiment, the lower part of the spray head support 1 is provided with a vertical threaded through hole II 1-04, the metal throat 6 is a hollow cylindrical pipe, the center of the metal throat 6 is a circular through hole, the aperture of the metal throat 6 is designed to be 0.5-1 mm larger than the outer diameter of a 3D printing wire material for forming, an external thread is processed on the outer cylindrical surface of the metal throat 6, and the metal throat 6 is fixedly installed at the upper end of the vertical threaded through hole II 1-04 at the lower part of the spray head support 1 in a threaded connection mode.
The nozzle 8 of the embodiment is a hollow conical cylinder made of a high-thermal-conductivity copper alloy material, the outer side surface of the upper end of the hollow conical cylinder is provided with an external thread, the center of the nozzle 8 is a circular through hole, the aperture of the nozzle is designed according to the actual forming precision, the nozzle 8 is fixedly installed at the lower end of a threaded through hole II 1-04 in the vertical direction at the lower part of the nozzle support 1 in a threaded connection mode, the lower end face of the metal throat pipe 6 is tightly attached to the upper end face of the nozzle 8, and the coaxial installation of the nozzle 8 and the metal throat pipe 6 is guaranteed.
In the embodiment, an internal conformal cooling flow channel is formed at the lower part of the spray head support 1 around the metal throat pipe 6, the cooling flow channel is respectively provided with a cooling water inlet hole and a cooling water outlet hole 1-08 on the side surface of the spray head support 1, the plastic water inlet hose 5 is a hollow long cylindrical pipe, one end of the plastic water inlet hose is fixedly connected with the cooling water inlet hole, and the plastic water outlet hose 10 is a hollow long cylindrical pipe, and one end of the plastic water outlet hose is fixedly connected with the cooling water outlet hole 1-08.
In the embodiment, horizontal mounting holes I1-06 and mounting holes II 1-07 are respectively formed in the left side and the right side of the nozzle 8 at the lower part of the nozzle support 1, the resistance heating block 7 is fixedly mounted in the mounting holes I1-06, and the resistance heating block 9 is fixedly mounted in the mounting holes II 1-07.
The working principle of the embodiment is as follows: in the aspect of the plane movement function of the spray head, the 3D printing spray head can move in an X-Y plane according to any continuous track under the driving of an X-axis movement mechanism and a Y-axis movement mechanism only by respectively inserting two optical axes of an X-axis and a Y-axis of the 3D printer into a linear bearing I16 and a linear bearing II 18 which are fixedly arranged on a spray head support 1, in the aspect of the feeding driving and guiding functions of the spray head, the other end of a plastic feeding hose 17 is connected with the material disc end of the 3D printer, and 3D printing wires sequentially pass through the plastic feeding hose 17, a groove formed between a wire extruding wheel 3 and a roller bearing 14, and a metal throat pipe 6 to a nozzle 8.
The embodiment adjusts the pressing force of the roller bearing 14 on the 3D printing silk material by adjusting the pressing screw 12, the filament extruding wheel 3 rotates anticlockwise under the drive of the motor 15 to drive the 3D printing filament materials to be continuously conveyed towards the nozzle 8, in the aspect of the function of heating, melting, depositing and printing the nozzle, the other ends of the plastic water inlet hose 5 and the plastic water outlet hose 10 are respectively connected with a cooling water circulating system of the 3D printer, so that circulating cooling water flows into the inner conformal cooling flow channel from the plastic water inlet hose 5 and is discharged from the plastic water outlet hose 10, the 3D printing silk material in the metal throat 6 keeps a low-temperature solid state under the cooling action of the circulating cooling water, under the heating action of the first resistance heating block 7 and the second resistance heating block 9, the 3D printing silk material in the nozzle 8 is in a heating and melting state, and continuously extruding and molding the 3D printing filament material in the heating and melting state in the nozzle 8 under the pushing action of the solid 3D printing filament material.
This embodiment 3D prints shower nozzle support 1 and collects X-Y plane motion support function, pay-off drive and direction support function, heating fused deposition prints support function three in an organic whole, and 3D prints the shower nozzle and adopts the circulating water cooling mode and has the cooling runner along with the shape at shower nozzle support 1 internal design, the cooling fan subassembly that traditional forced air cooling mode adopted has been saved, the integrated level is high, the part is small in quantity, good reliability, cooling efficiency is high, whole inertial mass is little, the action response is fast, be particularly useful for the high-speed 3D of industrial grade and print application.
The pressing force of the wire extruding wheel 3 on the 3D printing wire material can be adjusted by adjusting the pressing screw 12, the plastic feeding hose 17, the metal throat 6, the nozzle 8 and the like are fixedly installed in a threaded connection mode, and the plastic feeding hose 17, the metal throat 6 and the nozzle 8 which are matched with each other can be rapidly detached and replaced when the wire materials with different diameters are replaced, so that the use and maintenance are convenient.
In summary, the embodiment has the advantages of simple and reliable structure, small number of parts, small inertia mass, high cooling efficiency, convenience in use and maintenance and the like, and is very suitable for being used as an integrated industrial-grade high-speed 3D printer 3D printing nozzle applicable to X-Y plane motion.
And will be apparent to those skilled in the art from the foregoing description.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (7)
1. The utility model provides an integrated form 3D prints shower nozzle suitable for X-Y planar motion, includes motor (15), shower nozzle support (1) and crowded silk wheel (3), motor (15) are connected with shower nozzle support (1), and crowded silk wheel (3) link to each other its characterized in that with motor (15): the composite sliding block type nozzle is characterized by further comprising a composite sliding block pin shaft (4), a roller bearing (14), a pressing base (11), a pressing screw (12), a pressing spring (13), a metal throat pipe (6) and a nozzle (8), wherein the composite sliding block pin shaft (4) is installed on the nozzle support (1), and the roller bearing (14) is connected with the composite sliding block pin shaft (4); the pressing base (11) is fixed on the spray head support (1), a threaded through hole is formed in the pressing base (11), and a pressing screw (12) is installed in the threaded through hole; one end face of the compression spring (13) is tightly attached to one end face of the slider of the composite slider pin shaft (4), and the other end face of the compression spring (13) is tightly attached to the end face of the head of the compression screw (12); the metal throat (6) and the nozzle (8) are both arranged at the lower part of the spray head support (1), and the lower end face of the metal throat (6) is tightly attached to the upper end face of the nozzle (8).
2. The integrated 3D printing head adapted for X-Y planar motion of claim 1, wherein: the spray head support (1) is provided with a first mounting through hole (1-01), a first threaded through hole (1-02), a first through hole (1-03), a second through hole (1-05), a first mounting hole (1-06), a second mounting hole (1-07), a cooling water outlet hole (1-08), a third through hole (1-09), a first threaded hole (1-10), a T-shaped sliding groove (1-11), a second threaded hole (1-12), a fourth through hole (1-13) and a second mounting through hole (1-14), and the upper part of the spray head support (1) is provided with the first mounting through hole (1-01) and the second mounting through hole (1-14) which are horizontally arranged and mutually staggered and vertical; a first threaded through hole (1-02) in the vertical direction is formed in the position, located on the upper side of the motor output shaft, of the spray head support (1); the lower part of the spray head support (1) is positioned at the left side and the right side of the spray nozzle (8) and is respectively provided with a first mounting hole (1-06) and a second mounting hole (1-07) in the horizontal direction; the motor (15) and the spray head support (1) are fixedly connected by adopting four screws to respectively penetrate through a first through hole (1-03), a second through hole (1-05), a third through hole (1-09) and a fourth through hole (1-13) on the spray head support (1); the lower part of the spray head support (1) is provided with an internal conformal cooling flow channel around the metal throat pipe (6), and the side surface of the spray head support (1) of the cooling flow channel is respectively provided with a cooling water inlet hole and a cooling water outlet hole (1-08); the pressing base (11) is matched with the first threaded hole (1-10) and the second threaded hole (1-12) in an installing mode; the composite sliding block pin shaft (4) is arranged in a T-shaped chute (1-11) of the spray head support (1).
3. The integrated 3D printing head adapted for X-Y planar motion of claim 2, wherein: the device is characterized by further comprising a plastic feeding hose (17) and a standard pneumatic quick connector (2), wherein one end of the plastic feeding hose (17) is installed on the standard pneumatic quick connector (2), the standard pneumatic quick connector (2) is fixed on the spray head support (1), the plastic feeding hose (17) is a hollow long cylindrical pipe, and the diameter of a central round hole of the plastic feeding hose is 0.5-1 mm larger than the outer diameter of the 3D printing filament for forming; the standard pneumatic quick connector (2) is fixed in the first threaded through hole (1-02) in a threaded connection mode.
4. The integrated 3D printing head adapted for X-Y planar motion of claim 2, wherein: one end of the composite sliding block pin shaft (4) is a rectangular sliding block, the other end of the composite sliding block pin shaft (4) is a cylindrical pin shaft, a horizontal T-shaped sliding groove (1-11) is formed in the position, located on the left side of an output shaft of the motor (15), of the front face of the spray head support (1), and the sliding block end of the composite sliding block pin shaft (4) is installed in the T-shaped sliding groove (1-11) of the spray head support (1) in a clearance fit mode and forms a linear guide rail kinematic pair with the sliding block end.
5. The integrated 3D printing head adapted for X-Y planar motion of claim 1, wherein: and the bearing inner ring of the roller bearing (14) is arranged at the pin shaft end of the composite slide block pin shaft (4) in an interference fit manner.
6. The integrated 3D printing head adapted for X-Y planar motion of claim 2, wherein: the nozzle support (1) is also provided with a second threaded through hole (1-04), and the metal throat (6) is fixed at the upper end of the second threaded through hole (1-04) in the vertical direction at the lower part of the nozzle support (1) in a threaded connection mode.
7. The integrated 3D printing head adapted for X-Y planar motion of claim 6, wherein: the nozzle (8) is fixed at the lower end of the second threaded through hole (1-04) in the vertical direction at the lower part of the spray head support (1) in a threaded connection mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120568829.7U CN214820892U (en) | 2021-03-19 | 2021-03-19 | Integrated 3D printing nozzle suitable for X-Y plane motion |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120568829.7U CN214820892U (en) | 2021-03-19 | 2021-03-19 | Integrated 3D printing nozzle suitable for X-Y plane motion |
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| CN214820892U true CN214820892U (en) | 2021-11-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115195111A (en) * | 2022-06-24 | 2022-10-18 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Diameter-variable wire extruding structure for desktop printer |
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2021
- 2021-03-19 CN CN202120568829.7U patent/CN214820892U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115195111A (en) * | 2022-06-24 | 2022-10-18 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Diameter-variable wire extruding structure for desktop printer |
| CN115195111B (en) * | 2022-06-24 | 2023-10-27 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Reducing wire extrusion structure for desktop level printer |
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