CN111605195B

CN111605195B - 3D printer quick assembly disassembly shower nozzle

Info

Publication number: CN111605195B
Application number: CN202010506530.9A
Authority: CN
Inventors: 张海强; 杜俊斌; 陈晓佳
Original assignee: Guangzhou Electronic Technology Co Ltd
Current assignee: Guangzhou Electronic Technology Co Ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2020-12-29
Anticipated expiration: 2040-06-05
Also published as: CN111605195A

Abstract

The invention discloses a 3D printer quick-dismounting nozzle which comprises a mounting seat and an extrusion head, wherein the mounting seat comprises a feeding assembly used for conveying consumables and a cylindrical sleeve positioned below the feeding assembly, the bottom of the sleeve is provided with a mounting port used for mounting the extrusion head, the mounting port is provided with an annular chuck rotationally connected with the sleeve, the inner side of the annular chuck is provided with at least 2 uniformly distributed deformation elastic sheets, the extrusion head is provided with a circle of convex edges matched with the deformation elastic sheets, the convex edges are provided with openings corresponding to the deformation elastic sheets in position, the openings and the deformation elastic sheets are arranged in a staggered mode, and the annular chuck is provided with a driving piece used for driving the annular chuck to rotate. According to the invention, the downward movement of the extrusion head is limited by the matching of the deformation elastic sheet and the convex edge, and in a disassembly mode, the staggered opening arranged on the convex edge is adopted, and the deformation elastic sheet is aligned to the opening by rotating the annular chuck, so that the function of disassembling the spray head is realized, the structure is exquisite, the disassembly and the assembly are convenient, and the stability is high.

Description

3D printer quick assembly disassembly shower nozzle

Technical Field

The invention relates to the technical field of 3D printing, in particular to a quick-dismounting spray head of a 3D printer.

Background

Three-dimensional printing is also called 3D printing, belongs to one of rapid prototyping technologies, and is a technology (namely a lamination modeling method) for constructing an object by using a modeling material and stacking and accumulating layer by layer on the basis of a digital model file. It has been used to manufacture models in the fields of mold manufacturing, industrial design, etc., and is now increasingly used for direct manufacture of some products.

The three-dimensional printing process is firstly modeled by Computer Aided Design (CAD) or computer animation modeling software, then the built three-dimensional model is divided into sections layer by layer, and a processing path is obtained according to the information of the analyzed sections, thereby guiding a printer to print layer by layer. As a typical representative of three-dimensional printing technology, FDM (Fused Deposition Modeling) is a process for forming a three-dimensional solid model by stacking and stacking molten materials, and generally, a layer-by-layer solidification molding method is adopted to make printed resins become solid layer by layer, thereby producing a three-dimensional Modeling product. The common molding materials include ABS, PLA and the like, and basically, the linear molding materials are input from the upper end of a printing head of a three-dimensional printer, then are melted at high temperature in the printing head, and then are extruded out of a printing head outlet to form filamentous materials with the thickness of about 0.1-0.2 mm, and then the filamentous materials are regularly arranged on a molding seat according to a program, so that three-dimensional molding is realized.

And at the actual printing in-process, the condition of being blockked up by the consumptive material silk material appears easily in the head of extruding of printer to smooth degree, extrusion capacity and play silk temperature etc. to extruding cause great influence, and in the FDM shaping, the precision and the quality that its was printed receive the influence degree of extruding smooth degree and extrusion capacity of extruding the head higher, consequently when extruding the condition that the head appears blockking up, need in time change it. Generally, replacement of the extrusion head takes a long time, which affects the printing efficiency of three-dimensional printing, and thus a nozzle structure capable of being replaced quickly is required.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a 3D printer nozzle capable of being quickly assembled and disassembled.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a 3D printer quick assembly disassembly shower nozzle, includes the mount pad and extrudes the head, the mount pad is including the pay-off subassembly that is used for carrying the consumptive material and the cylindrical sleeve that is located the pay-off subassembly below, the installing port that supplies to extrude the first installation is seted up to the sleeve bottom, installing port department is equipped with the annular chuck of being connected with sleeve rotation, the annular chuck inboard is equipped with the deformation shell fragment that 2 at least equipartitions set up, extrude overhead and be equipped with the round chimb that deforms shell fragment complex, set up the opening that corresponds with deformation shell fragment position on the chimb, and the opening with deform the shell fragment dislocation set, be equipped with on the annular chuck and be used for driving annular chuck pivoted driving piece, when extruding head and mount pad installation cooperation, the chimb card is in the top that deforms the shell fragment, rotates annular chuck.

Furthermore, the deformation elastic sheet inclines upwards and comprises an inclined part and a horizontal part, one end of the inclined part is connected with the inner side of the annular chuck, and the other end of the inclined part is connected with the horizontal part.

Further, the top end of the convex edge is provided with an inclined surface parallel to the inclined portion.

Furthermore, the inboard of installing port is equipped with and is used for restricting to extrude first pivoted lug, extrude and offer on the surface of head with lug complex bar through groove, the bar is led to the groove position and is corresponded with the opening position.

Further, the sleeve is still including being used for the fixed roof pressure subassembly of extruding the head, the roof pressure subassembly includes along extruding the removal choke that first direction of installation and mount pad slip set up, the consumptive material link up and removes the choke and carries to extruding in the head, the one end that removes the choke offsets with extruding the head, and the other end stretches out the mount pad and outer and be provided with the limiting plate, the outside of removing the choke is equipped with the snap ring, be provided with a compression spring between snap ring and the sleeve.

Furthermore, one end of the movable throat pipe, which is abutted against the extrusion head, is arranged in a conical shape, and one end of the extrusion head, which is abutted against the movable throat pipe, is a conical surface matched with the movable throat pipe.

Further, the driving piece comprises a disassembling handle fixedly connected to the annular chuck, the disassembling handle extends out of the sleeve, and a sliding groove for the handle to move is formed in the sleeve.

Further, the tip of handle is equipped with the handle head, the handle head is the arc with the sleeve is concentric, the length of arc is not less than 2 times the length of spout, and with telescopic lateral surface laminating.

Furthermore, the annular chuck is further provided with a reset assembly for restoring the deformation elastic sheet and the opening to be in a staggered position, the reset assembly comprises a first spring fixing column fixed with the sleeve and a second spring fixing column fixed with the annular chuck, a second compression spring is arranged between the first spring fixing column and the second spring fixing column, and the annular chuck is provided with a limiting groove for relative movement of the annular chuck and the first spring fixing column.

Furthermore, the reset assembly is provided with a plurality of groups and uniformly distributed on the annular chuck.

Compared with the prior art, the invention has the following advantages:

according to the invention, the downward movement of the extrusion head is limited by the matching of the deformation elastic sheet and the convex edge, in a disassembly mode, the staggered opening arranged on the convex edge is adopted, the deformation elastic sheet is aligned to the opening by rotating the annular chuck, so that the function of disassembling the spray head is realized, meanwhile, the movable throat for limiting the upward movement of the extrusion head is limited above the extrusion head, the movable throat is also beneficial to the accuracy of the input of consumables into the extrusion head, and the spray head has the advantages of exquisite structure, convenience in disassembly and assembly and high stability.

Drawings

FIG. 1 is a schematic view of an overall structure of a 3D printer quick-dismounting nozzle;

FIG. 2 is a schematic front view of a 3D printer with a quick-release nozzle;

FIG. 3 is a schematic cross-sectional view taken along the line A-A of FIG. 2;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

FIG. 5 is a schematic diagram of an internal structure of a quick-release nozzle of the 3D printer;

FIG. 6 is an enlarged schematic view of portion B of FIG. 5;

FIG. 7 is a schematic structural diagram of a driving member of the 3D printer quick-release nozzle;

FIG. 8 is a schematic top view of a driving member portion of a quick-release nozzle of the 3D printer;

description of reference numerals: 1. a mounting seat; 11. consumable materials; 2. an extrusion head; 21. a strip-shaped through groove; 22. a convex edge; 23. a conical surface; 24. a bevel; 25. an installation port; 3. a feeding assembly; 31. a feeding driving wheel; 32. a feeding driven wheel; 33. a driven wheel fixing block; 34. the driven wheel loosens or loosens the handle; 35. a driven wheel adjusting spring; 36. a feeding motor; 4. a sleeve; 41. an opening; 42. a bump; 5. a drive member; 51. a second spring fixing post; 52. a first spring fixing post; 53. a second compression spring; 54. a limiting groove; 55. disassembling the handle; 56. a handle head; 57. a chute; 6. moving the throat; 61. a limiting plate; 62. a snap ring; 63. a first compression spring; 7. a ring chuck; 71. deforming the elastic sheet; 711. an inclined portion; 712. a horizontal portion.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Examples

As shown in fig. 1 and 2, a 3D printer quick-dismounting nozzle comprises a mounting seat 1 and an extrusion head 2, the mounting seat 1 comprises a feeding component 3 for conveying consumable materials 11 and a cylindrical sleeve 4 positioned below the feeding component 3, the feeding component 3 comprises a feeding driving wheel 31 and a feeding driven wheel 32 which are arranged on the mounting seat 1, the feeding driving wheel 31 is mounted on the mounting seat 1 and coaxially and rotatably connected with a feeding motor 36 arranged on the back surface of the mounting seat 1, the feeding driven wheel 32 is rotatably connected on a driven wheel fixing block 33, the driven wheel fixing block 33 is slidably connected with the mounting seat 1, the driven wheel fixing block 33 is connected with a driven wheel elastic handle 34, a driven wheel adjusting spring 35 is arranged between the driven wheel fixing block 33 and the side surface of the mounting seat 1, so that the driven wheel fixing block 33 slides towards the feeding driving wheel 31 by using the driven wheel adjusting spring, the consumable 11 is clamped and conveyed by the feeding driving wheel 31 and the feeding driven wheel 32.

As shown in fig. 3 to 6, the bottom of the sleeve 4 is provided with an installation opening 25 for installing the extrusion head 2, the installation opening 25 is provided with a ring-shaped chuck 7 rotatably connected with the sleeve 4, at least 2 deformation elastic pieces 71 are uniformly arranged in the ring-shaped chuck 7, the number of the deformation elastic pieces 71 is 4 in the embodiment, the deformation elastic pieces 71 are inclined upwards and comprise an inclined part 711 and a horizontal part 712, one end of the inclined part 711 is connected with the inner side of the ring-shaped chuck 7, and the other end is connected with the horizontal part 712. The top of extrusion head 2 is equipped with the round chimb 22 that cooperates with the shell fragment 71 that warp, and the outward edge of chimb 22 is the inclined plane 24 parallel with inclined part 711, and when the installation, through inclined plane 24 and inclined part 711 cooperation, make the shell fragment 71 that warp upwards take place elastic deformation to make chimb 22 be located the top of warping shell fragment 71, and utilize the cooperation of the horizontal part 712 of warping shell fragment 71 and the plane of chimb 22 bottom surface, the restriction is extruded head 2 and is moved downwards. The opening 41 corresponding to the position of the deformation elastic sheet 71 is further formed in the convex edge 22, the position of the opening 41 and the position of the deformation elastic sheet 71 are arranged in a staggered mode, the annular chuck 7 is provided with a driving piece 5 used for driving the annular chuck 7 to rotate, when the extrusion head 2 and the mounting seat 1 are assembled, the opening 41 and the position of the deformation elastic sheet 71 are staggered, the convex edge 22 is clamped above the deformation elastic sheet 71, the extrusion head 2 cannot move downwards, and when the annular chuck 7 is rotated to enable the deformation elastic sheet 71 to be aligned with the opening 41, the extrusion head 2 can be detached.

As shown in fig. 1 and 7, a protrusion 42 is protruded at the inner side of the mounting opening 25, a strip-shaped through groove 21 matched with the protrusion 42 is formed on the outer surface of the extrusion head 2, the position of the strip-shaped through groove 21 and the position of the opening 41 are on the same vertical axis, and when the extrusion head 2 is mounted on the mounting base 1, the protrusion 42 is matched with the strip-shaped through groove 21, so that the rotation of the extrusion head 2 in the horizontal direction is limited. The strip-shaped through groove 21 and the opening 41 are located on the same vertical axis, so that the processing of the extrusion head 2 during production is reduced, and the technical characteristics of two different functions are combined on one characteristic ingeniously.

As shown in fig. 4, a jacking assembly for fixing the extrusion head 2 is further arranged in the sleeve 4, the jacking assembly includes a movable throat 6 slidably arranged with the mounting seat 1 along the mounting direction of the extrusion head 2, the consumable 11 runs through the center line of the movable throat 6 and is conveyed into the extrusion head 2, one end of the movable throat 6 abuts against the extrusion head 2, the other end of the movable throat 6 extends out of the mounting seat 1 and is provided with a limiting plate 61 to limit the detachment of the movable throat 6, a snap ring 62 is arranged on the outer side surface of the movable throat 6 in the sleeve 4, a first compression spring 63 is arranged between the snap ring 62 and the inner side top surface of the sleeve 4, the movable throat 6 is jacked towards the extrusion head 2 through the first compression spring 63, so that the upward movement of the extrusion head 2 is effectively limited, and the movement of the extrusion head 2 is completely limited. And the one end that removes choke 6 and extrude first 2 offsets is conical setting, extrudes the one end that first 2 and remove choke 6 offsets and sets up to the conical surface 23 with removing choke 6 matched with, can effectively aim at the input-output mouth that removes choke 6 and the consumptive material 11 who extrudes first 2 like this, the smoothness nature when improving the printing.

As shown in fig. 7 and 8, the driving member 5 for driving the ring chuck 7 to rotate includes a detaching handle 55 fixedly connected to the ring chuck 7, the detaching handle 55 extends out of the sleeve 4, a sliding slot 57 for the handle to move is provided on the sleeve 4, a handle head 56 is provided at an end of the handle, the handle head 56 is an arc plate concentric with the sleeve 4, the length of the arc plate is not less than 2 times the length of the sliding slot 57 and is attached to the outer side surface of the sleeve 4, so that the sliding slot 57 on the sleeve 4 can be completely shielded, and it is avoided that an interfering object such as dust enters from the sliding slot 57 and affects the performance of the overall printing.

Still be equipped with on the ring chuck 7 and be used for recovering the subassembly that resets that warp shell fragment 71 and opening 41 are in the position of staggering, the subassembly that resets includes first spring fixed column 52 fixed with sleeve 4 and the second spring fixed column 51 fixed with ring chuck 7, be provided with second compression spring 53 between first spring fixed column 52 and the second spring fixed column 51, offer the spacing groove 54 that is used for supplying ring chuck 7 and first spring fixed column 52 relative activity on the ring chuck 7, and this subassembly that resets can set up the multiunit, set up on ring chuck 7 with the equipartition, 3 groups have been set up in this embodiment, specifically can look at the elasticity condition of second compression spring 53 and set up. When the annular chuck 7 is rotated by the disassembling handle 55, the second compression spring 53 is stretched to store energy, and when the hand is loosened, the annular chuck 7 is restored to the state that the deformation elastic sheet 71 and the opening 41 are in the staggered position under the elastic force of the second compression spring 53.

Specifically, when not mounted, the moving throat 6 is subjected to the action of the first compression spring 63, with its stop plate 61 in abutment with the mount 1. When the extrusion head 2 is installed, the strip-shaped through groove 21 of the extrusion head 2 is aligned with the bump 42 in the sleeve 4 and is pushed upwards along the direction of the protrusion, when the convex edge 22 is in contact with the deformation elastic sheet 71, the deformation elastic sheet 71 is deformed upwards, and simultaneously, the tapered surface 23 at the top end of the extrusion head 2 abuts against the moving throat 6, so that the moving throat 6 moves upwards by overcoming the elasticity of the first compression spring 63, when the convex edge 22 completely passes through, the deformation elastic sheet 71 returns to normal, the moving throat 6 is pressed downwards under the action of the first compression spring 63, and at the moment, the horizontal part 712 of the deformation elastic sheet 71 abuts against the bottom surface of the convex edge 22 to provide an upward supporting force, and the extrusion head 2 is simultaneously limited by the deformation elastic sheet 71, the moving throat 6 and the bump 42 and is stably installed on the installation seat 1.

When the disassembly is performed, the disassembly handle 55 is manually operated by a human hand, the annular chuck 7 is rotated by using the disassembly handle 55, so that the position of the deformation elastic sheet 71 is aligned with the position of the opening 41 on the flange 22, and the extrusion head 2 can be separated from the limitation of the deformation elastic sheet 71 on the downward movement. At this point, the extrusion head 2 can be easily removed by the downward pressure of the moving throat 6. When the removal handle 55 is released, the ring chuck 7 is reset by the second compression spring 53 in preparation for the installation of a new extrusion head 2.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.

Claims

1. The utility model provides a 3D printer quick assembly disassembly shower nozzle which characterized in that: comprises a mounting seat (1) and an extrusion head (2), wherein the mounting seat (1) comprises a feeding component (3) for conveying consumable materials (11) and a cylindrical sleeve (4) positioned below the feeding component (3), a mounting port (25) for extruding the installation of the head (2) is arranged at the bottom of the sleeve (4), an annular chuck (7) rotationally connected with the sleeve (4) is arranged at the mounting port (25), at least 2 deformation elastic sheets (71) uniformly distributed and arranged are arranged on the inner side of the annular chuck (7), a circle of convex edge (22) matched with the deformation elastic sheets (71) is arranged on the extrusion head (2), an opening (41) corresponding to the position of the deformation elastic sheet (71) is arranged on the convex edge (22), the opening (41) and the deformation elastic sheet (71) are arranged in a staggered manner, and a driving piece (5) for driving the annular chuck (7) to rotate is arranged on the annular chuck (7), when the extrusion head (2) is assembled with the mounting seat (1), the convex edge (22) is clamped above the deformation elastic sheet (71), and the annular chuck (7) is rotated to align the deformation elastic sheet (71) with the opening (41) so as to disassemble the extrusion head (2).

2. The 3D printer quick detach shower nozzle of claim 1 characterized in that: the deformation elastic sheet (71) inclines upwards and comprises an inclined part (711) and a horizontal part (712), wherein one end of the inclined part (711) is connected with the inner side of the annular chuck (7), and the other end of the inclined part (711) is connected with the horizontal part (712).

3. The 3D printer quick detach shower nozzle of claim 2 characterized in that: the top end of the convex edge (22) is provided with a slope (24) parallel to the inclined part (711).

4. The 3D printer quick detach shower nozzle of claim 1 characterized in that: the inboard of installing port (25) is equipped with and is used for restricting to extrude first (2) pivoted lug (42), it leads to groove (21) with lug (42) complex bar to have seted up on the surface of extruding head (2), the groove (21) position is led to the bar corresponds with opening (41) position.

5. The 3D printer quick detach shower nozzle of claim 1 characterized in that: sleeve (4) are still including the roof pressure subassembly that is used for fixed extrusion head (2), the roof pressure subassembly includes along extruding removal choke (6) that head (2) installation direction and mount pad (1) slide to set up, consumptive material (11) link up and remove choke (6) and carry to extruding in head (2), the one end that removes choke (6) offsets with extrusion head (2), and the other end stretches out mount pad (1) outer and be provided with limiting plate (61), the outside of removing choke (6) is equipped with snap ring (62), be provided with first compression spring (63) between snap ring (62) and sleeve (4).

6. The 3D printer quick detach shower nozzle of claim 5 characterized in that: the end, abutted against the extrusion head (2), of the movable throat pipe (6) is arranged in a conical shape, and the end, abutted against the movable throat pipe (6), of the extrusion head (2) is a conical surface (23) matched with the movable throat pipe (6).

7. The 3D printer quick detach shower nozzle of claim 1 characterized in that: the driving piece (5) comprises a disassembly handle (55) fixedly connected to the annular chuck (7), the disassembly handle (55) extends out of the outer side of the sleeve (4), and a sliding groove (57) for the disassembly handle (55) to move is formed in the sleeve (4).

8. The 3D printer quick detach shower nozzle of claim 7 characterized in that: the end part of the disassembly handle (55) is provided with a handle head (56), the handle head (56) is an arc-shaped plate concentric with the sleeve (4), the length of the arc-shaped plate is not less than 2 times of the length of the sliding groove (57), and the arc-shaped plate is attached to the outer side surface of the sleeve (4).

9. The 3D printer quick detach shower nozzle of claim 1 characterized in that: the annular chuck (7) is further provided with a reset assembly used for restoring the deformation elastic sheet (71) and the opening (41) to be in a staggered position, the reset assembly comprises a first spring fixing column (52) fixed with the sleeve (4) and a second spring fixing column (51) fixed with the annular chuck (7), a second compression spring (53) is arranged between the first spring fixing column (52) and the second spring fixing column (51), and the annular chuck (7) is provided with a limiting groove (54) used for enabling the annular chuck (7) and the first spring fixing column (52) to move relatively.

10. The 3D printer quick detach shower nozzle of claim 9 characterized in that: the reset assembly is provided with a plurality of groups and is uniformly distributed on the annular chuck (7).