CN111483145A - Three-dimensional printing nozzle that electron combines - Google Patents
Three-dimensional printing nozzle that electron combines Download PDFInfo
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- CN111483145A CN111483145A CN202010299453.4A CN202010299453A CN111483145A CN 111483145 A CN111483145 A CN 111483145A CN 202010299453 A CN202010299453 A CN 202010299453A CN 111483145 A CN111483145 A CN 111483145A
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- servo motor
- cam
- spray head
- dimensional
- extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The invention discloses an electronic combined three-dimensional printing spray head. The output end of the first servo motor faces downwards and is fixedly connected with the top of the spray head base, and the extrusion head is fixedly arranged on the bottom surface of the spray head base; the cam mechanism is provided with a groove on the side surface of the spray head base and a driven piece, and the driven piece and the groove are connected in a sliding manner to form a vertical sliding pair; the second servo motor is arranged in the spray head base, the output end of the second servo motor is horizontally and fixedly connected with the rotating center of the cam, and the eccentric part of the cam fixes the shaft block; and a wire extruding device is fixedly arranged at one side of the bottom of the driven piece, which faces the extruding head. The invention effectively shortens the three-dimensional printing process of the three-dimensional model containing the circuit, improves the manufacturing efficiency, expands the application range of the fused deposition manufacturing type three-dimensional printing device, and can be widely applied to the printing process of the three-dimensional object containing the circuit.
Description
Technical Field
The invention relates to the technical field of rapid prototyping, in particular to a three-dimensional printing nozzle capable of directly printing a three-dimensional model containing a circuit.
Background
Fused deposition fabrication techniques are a starting material for three-dimensional printing techniques. Fused deposition manufacturing techniques heat and melt thermoplastic materials in an extrusion head. The extrusion head moves along a filling track in the section of the three-dimensional model layer, and simultaneously extrudes the molten three-dimensional printing material, and the material is coagulated to form a three-dimensional object.
For the fused deposition manufacturing technique, the extrusion head can print out a three-dimensional object made of thermoplastic material, but cannot print out a three-dimensional object containing a circuit, and only a plurality of separate parts are printed first and then assembled with the circuit to finally obtain the three-dimensional object containing the circuit, so that the manufacturing process is complex and time-consuming, and the efficiency is low.
Disclosure of Invention
In order to solve the problems in the background art, the main object of the present invention is to provide an electronically combined three-dimensional printing head, which can conveniently print a three-dimensional object containing a circuit, print a non-circuit part and simultaneously print a circuit part in real time, and expand the application range of a fused deposition manufacturing type three-dimensional printing apparatus.
In order to achieve the purpose, the invention adopts the technical scheme that:
an electron-combined three-dimensional printing nozzle:
the three-dimensional printing nozzle comprises a rotation control unit, an extrusion head, a cam mechanism and a wire extrusion device; the rotary control unit comprises a first servo motor and a spray head base, the first servo motor is installed on an original spray head position of the fused deposition manufacturing type three-dimensional printing device, the output end of the first servo motor is downwards fixedly connected with the top of the spray head base through a coupler, the first servo motor drives the spray head base to rotate around a vertical axis, and the extrusion head is fixedly installed on the bottom surface of the spray head base; the cam mechanism comprises a second servo motor, a cam and a driven piece; a groove is formed in the outer side surface of the spray head base, a driven part is installed in the groove, and the driven part and the groove are connected in a sliding mode to form a vertical sliding pair; the second servo motor is arranged in the spray head base, the output end of the second servo motor horizontally penetrates through the spray head base and then is fixedly connected with the rotating center of the cam through the coupler, and the output end of the second servo motor drives the cam to rotate around the horizontal shaft; the top of the driven piece is provided with a convex strip block which horizontally extends towards the cam, the bottom surface of the convex strip block forms a step as a strip plane, the top surface of the cam is in contact with the strip plane and rolls on the strip plane to form a cam pair, and the cam rotates to drive the driven piece to move up and down along the limit of the vertical sliding pair; and a wire extruding device is fixedly arranged at the bottom of the driven piece towards one side of the extrusion head and is used for extruding a conductive medium.
The conductive medium is a copper wire.
The groove walls on the two sides of the groove are vertical strip-shaped grooves, the two sides of the driven piece are provided with convex blocks, and the convex blocks are embedded in the strip-shaped grooves in a sliding connection mode, so that the two sides of the driven piece and the groove walls on the two sides of the groove form vertical sliding pairs.
And a cutting device is arranged near the extrusion port of the lead extrusion device.
The near-repose angle of the cam is 180 degrees.
Secondly, a three-dimensional printing method: when the driven part is driven by the second servo motor to descend to the lowest point for a section along the vertical sliding pair, the extrusion head and the wire extrusion device work together, the wire extrusion device extrudes a conductive medium into a printing material extruded and melted by the extrusion head, and then the part containing a circuit in the three-dimensional model is printed; when the driven part is driven by the second servo motor to ascend to the highest point for a section along the vertical sliding pair, the wire extruding device is far away from the printing plane below and stops working, only the extruding head works alone, and the part without the circuit in the three-dimensional model is printed.
The cutting device is positioned near the extrusion opening when the wire extrusion device is at the lowest point.
The invention has the beneficial effects that:
according to the invention, through the rotating and translation structure, the printing function of the three-dimensional printing nozzle combined with the electrons on a three-dimensional model containing a circuit is skillfully realized, and the application range of the fused deposition manufacturing type three-dimensional printing device is greatly expanded; whether the wire extruding device works or not can be controlled through the cam mechanism, and normal printing of the common three-dimensional model is guaranteed; and the rotating mechanism ensures that the extrusion direction of the lead and the movement direction of the spray head are on the same straight line, so that the molten three-dimensional printing material is prevented from being deformed under the influence of the acting force of the lead.
The invention mainly improves the printing nozzle structure of the fused deposition manufacturing type three-dimensional printing device so as to print a three-dimensional model containing a circuit, thereby expanding the application range of the three-dimensional printing device, reducing the steps and time required for manufacturing a special model, improving the efficiency of the three-dimensional printing process, and designing the structures of an extrusion head and a lead extrusion device by referring to the existing products.
Drawings
FIG. 1 is a schematic structural diagram of an electronically bonded three-dimensional print head in an embodiment of the present invention;
FIG. 2 is an exploded view of an embodiment of an electronically bonded three-dimensional print head;
FIG. 3 is a schematic structural diagram of an electronically bonded three-dimensional print head in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an extrusion head and a wire extrusion device working together according to an embodiment of the present invention;
FIG. 5 is a schematic view of the extrusion head of the embodiment of the present invention in a single operation.
Detailed Description
The invention is further illustrated by the following examples and figures.
Referring to fig. 1, the present three-dimensional printing head 1 includes a rotation control unit 2, an extrusion head 3, a cam mechanism 4, and a wire extruding device 5.
Referring to fig. 1, the rotation control unit 2 includes a first servo motor 21 and a nozzle base 22, the first servo motor 21 is installed at an original nozzle position of the fused deposition manufactured three-dimensional printing apparatus, an output end of the first servo motor 21 faces downward and is fixedly connected with the top of the nozzle base 22 through a coupler, the first servo motor 21 drives the nozzle base 22 to rotate around a vertical axis (a Z axis shown in the figure), and the extrusion head 3 is fixedly installed on the bottom surface of the nozzle base 22; the first servo motor 21 drives the nozzle base 22, the driven part 43 and the lead extrusion device 5 to rotate around the Z axis shown in the figure, so that the lead extrusion device 5 rotates along with the nozzle base, the lead extrusion direction of the lead extrusion device 5 and the motion direction of the three-dimensional printing nozzle 1 are on the same straight line, and the molten three-dimensional printing material is prevented from being deformed under the influence of the acting force of the lead.
Referring to fig. 2, the cam mechanism 4 includes a second servo motor 41, a cam 42, and a follower 43; a groove is formed in the outer side surface of the spray head base 22, a driven piece 43 is installed in the groove, and the driven piece 43 and the groove are connected in a sliding mode to form a vertical sliding pair; specifically, the groove walls on the two sides of the groove are vertical strip-shaped grooves, the two sides of the driven part 43 are provided with convex blocks, and the convex blocks are embedded in the strip-shaped grooves in a sliding connection mode, so that the two sides of the driven part 43 and the groove walls on the two sides of the groove form a vertical sliding pair. The second servo motor 41 is eccentrically installed in the nozzle base 22, the output end of the second servo motor 41 horizontally penetrates through the nozzle base 22 and then is fixedly connected with the rotation center of the cam 42 through a coupler, and the output end of the second servo motor 41 drives the cam 42 to rotate around a horizontal shaft (a Y shaft shown in the figure); the follower 43 is a flat-bottom follower, the top of the follower 43 is provided with a convex strip block horizontally extending to the cam 42, the bottom surface of the convex strip block forms a step as a strip plane, the top surface of the cam 42 is contacted with the strip plane and rolls on the strip plane to form a cam pair, and the cam 42 rotates to drive the follower 43 to move up and down (along the Z axis shown in the figure) under the limit of the vertical sliding pair through the cam pair, as shown in fig. 3; the bottom of the driven part 43 is fixedly provided with a wire extruding device 5 towards one side of the extrusion head 3, the wire extruding device 5 is used for extruding a conductive medium, and the conductive medium is a copper wire. The second servo motor 41 works to drive the cam 42 to rotate, and the cam 42 drives the driven part 43 to move up and down along the vertical sliding pair under the limit of the horizontal sliding pair.
In this way, the second servo motor 41 drives the driven member 43 and the wire extruding device 5 to move up and down along the illustrated Z-axis, and the position of the wire extruding device is controlled by the cam mechanism, so that the wire extruding device is prevented from influencing the normal operation of the extruding head.
The groove walls on the two sides of the groove are vertical strip-shaped grooves, the two sides of the driven part 43 are provided with convex blocks, and the convex blocks are embedded in the strip-shaped grooves in sliding connection to enable the two sides of the driven part 43 and the groove walls on the two sides of the groove to form vertical sliding pairs.
A cutting device is arranged near the extrusion opening of the lead extrusion device 5; when the lead extrusion device stops working, the cutting device cuts the lead.
The spray head base is driven by the first servo motor to rotate around a first rotating shaft relative to the first servo motor; the first rotation axis is perpendicular to the horizontal plane. The cam is driven by a second servo motor to rotate around a second rotating shaft relative to the spray head base; the second rotation axis is perpendicular to the first rotation axis.
In one embodiment, the cam 42 of the present invention has a distal and proximal angle of repose, with the distal angle of repose set to 30 degrees and the proximal angle of repose set to 180 degrees. The near angle of repose of the cam 42 is set to 180 degrees, which ensures that the follower 43 is stabilized at the lowermost end when the wire extruding device 5 is operating, thereby ensuring that the wire extruding device 5 properly extrudes the wire into the molten three-dimensional material.
Referring to fig. 3 and 4, when the driven member 43 is driven by the second servo motor 41 to descend to a section of the lowest point along the vertical sliding pair, in a specific implementation, the second servo motor 41 is eccentrically arranged at the lower side part of the outer side surface of the nozzle base 22, that is, the driven member 43 moves to a point closest to the selected center of the cam 42 and stands still, the extrusion head 3 and the wire extrusion device 5 work together, the wire extrusion device 5 extrudes a conductive medium of a copper wire to the extrusion head 3 to extrude the molten printing material, and then a part containing a circuit in the three-dimensional model is printed;
referring to fig. 5, when the driven member 43 is driven by the second servo motor 41 to ascend to the highest point along the vertical sliding pair, in a specific implementation, the second servo motor 41 is eccentrically disposed at the lower side portion of the outer side surface of the head base 22, that is, the driven member 43 moves to a point farthest from the selected center of the cam 42 and stands still, the wire extruding device 5 is away from the printing plane below and stops working, only the extruding head 3 works alone, and a portion of the three-dimensional model without a circuit is printed.
When the driven member 43 is driven by the second servo motor 41 to move along the vertical sliding pair to a section between the highest point and the lowest point, the wire extruding device 5 also stops working.
The cutting device is located near the extrusion port when the wire extruding device 5 is at the lowest point. After the part containing the circuit in the three-dimensional model is printed, the wire in the wire extrusion device is not exposed in the air, and the influence of the wire extrusion device on the normal work of the extrusion head is avoided through the cutting device.
The above embodiments are merely illustrative of the technical ideas 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, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides an electron combination's three-dimensional shower nozzle of printing which characterized in that: comprises a rotary control unit (2), an extrusion head (3), a cam mechanism (4) and a lead extrusion device (5); the rotary control unit (2) comprises a first servo motor (21) and a spray head base (22), the first servo motor (21) is installed on the original spray head position of the fused deposition manufacturing type three-dimensional printing device, the output end of the first servo motor (21) faces downwards and is fixedly connected with the top of the spray head base (22) through a coupler, the first servo motor (21) drives the spray head base (22) to rotate around a vertical axis, and the extrusion head (3) is fixedly installed on the bottom surface of the spray head base (22); the cam mechanism (4) comprises a second servo motor (41), a cam (42) and a driven piece (43); a groove is formed in the outer side surface of the spray head base (22), a driven piece (43) is installed in the groove, and the driven piece (43) and the groove are connected in a sliding mode to form a vertical sliding pair; the second servo motor (41) is arranged in the spray head base (22), the output end of the second servo motor (41) horizontally penetrates through the spray head base (22) and then is fixedly connected with the rotating center of the cam (42) through a coupler, and the output end of the second servo motor (41) drives the cam (42) to rotate around the horizontal shaft; the top of the driven piece (43) is provided with a convex strip block which horizontally extends towards the cam (42), the bottom surface of the convex strip block forms a step as a strip plane, the top surface of the cam (42) is contacted with the strip plane and rolls on the strip plane to form a cam pair, and the cam (42) rotates to drive the driven piece (43) to move up and down along the limit of the vertical sliding pair through the cam pair; and a wire extruding device (5) is fixedly arranged at the bottom of the driven part (43) towards one side of the extruding head (3), and the wire extruding device (5) is used for extruding a conductive medium.
2. An electronically bonded three-dimensional print head as recited in claim 1, wherein:
the conductive medium is a copper wire.
3. An electronically bonded three-dimensional print head as recited in claim 1, wherein: the groove walls on the two sides of the groove are vertical strip-shaped grooves, the two sides of the driven piece (43) are provided with convex blocks, and the convex blocks are embedded in the strip-shaped grooves in a sliding connection mode, so that the two sides of the driven piece (43) and the groove walls on the two sides of the groove form vertical sliding pairs.
4. An electronically bonded three-dimensional print head as recited in claim 1, wherein:
and a cutting device is arranged near the extrusion opening of the lead extrusion device (5).
5. The three-dimensional printing method according to claim 4, wherein:
the near-rest angle of the cam (42) is 180 degrees.
6. A three-dimensional printing method applied to the three-dimensional printing nozzle of any one of claims 1 to 5, characterized in that: when the driven part (43) is driven by the second servo motor (41) to descend to the lowest point for a section along the vertical sliding pair, the extrusion head (3) and the lead extrusion device (5) work together, the lead extrusion device (5) extrudes a conductive medium into a printing material extruded and melted by the extrusion head (3), and then a part containing a circuit in the three-dimensional model is printed; when the driven part (43) is driven by the second servo motor (41) to ascend to the highest point for a section along the vertical sliding pair, the wire extruding device (5) is far away from the printing plane below and stops working, only the extruding head (3) works independently, and parts without circuits in the three-dimensional model are printed.
7. The three-dimensional printing method according to claim 6, wherein:
the cutting device is positioned near the extrusion opening when the wire extrusion device (5) is at the lowest point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299453.4A CN111483145B (en) | 2020-04-16 | 2020-04-16 | Three-dimensional printing nozzle that electron combines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299453.4A CN111483145B (en) | 2020-04-16 | 2020-04-16 | Three-dimensional printing nozzle that electron combines |
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| CN111483145A true CN111483145A (en) | 2020-08-04 |
| CN111483145B CN111483145B (en) | 2021-09-24 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016171598A1 (en) * | 2015-04-22 | 2016-10-27 | Magicfirm Europe Ab | A three-dimensional imaging apparatus for modeling a colored three-dimensional object |
| US20170190109A1 (en) * | 2015-12-30 | 2017-07-06 | Makerbot Industries, Llc | Multi-filament three-dimensional printing |
| CN108437457A (en) * | 2018-05-05 | 2018-08-24 | 华明进 | A kind of continuous fiber reinforced composite materials 3D printer |
| TW202000431A (en) * | 2018-06-25 | 2020-01-01 | 日商Kj化成品股份有限公司 | Three-dimensional modeling apparatus, three-dimensional modeling method and three-dimensional modeled product using different materials |
-
2020
- 2020-04-16 CN CN202010299453.4A patent/CN111483145B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016171598A1 (en) * | 2015-04-22 | 2016-10-27 | Magicfirm Europe Ab | A three-dimensional imaging apparatus for modeling a colored three-dimensional object |
| US20170190109A1 (en) * | 2015-12-30 | 2017-07-06 | Makerbot Industries, Llc | Multi-filament three-dimensional printing |
| CN108437457A (en) * | 2018-05-05 | 2018-08-24 | 华明进 | A kind of continuous fiber reinforced composite materials 3D printer |
| TW202000431A (en) * | 2018-06-25 | 2020-01-01 | 日商Kj化成品股份有限公司 | Three-dimensional modeling apparatus, three-dimensional modeling method and three-dimensional modeled product using different materials |
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| CN111483145B (en) | 2021-09-24 |
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