CN219256481U - 3D printing device - Google Patents
3D printing device Download PDFInfo
- Publication number
- CN219256481U CN219256481U CN202223184757.XU CN202223184757U CN219256481U CN 219256481 U CN219256481 U CN 219256481U CN 202223184757 U CN202223184757 U CN 202223184757U CN 219256481 U CN219256481 U CN 219256481U
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- mechanical arm
- assembly
- heating
- extrusion
- forming platform
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- 238000010146 3D printing Methods 0.000 title claims abstract description 27
- 238000001125 extrusion Methods 0.000 claims abstract description 55
- 239000000155 melt Substances 0.000 claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 70
- 238000010438 heat treatment Methods 0.000 claims description 48
- 230000005540 biological transmission Effects 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 239000000725 suspension Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model belongs to the technical field of 3D printing equipment, and discloses a 3D printing device, which comprises: fixing the underframe; the melt extrusion assembly is arranged on the fixed underframe; the mechanical arm assembly is arranged on one side of the fixed underframe; the mechanical arm assembly comprises a mechanical arm arranged on one side of the fixed underframe and a forming platform arranged on the mechanical arm, the mechanical arm is used for driving the forming platform to move in a three-dimensional space, the forming platform is used for supporting a product to be printed, and the melt extrusion assembly is used for extruding raw materials of the printed product to the forming platform. The mechanical arm and the forming platform are used for driving the printed product to move in a three-dimensional space, so that raw materials extruded by the melt extrusion assembly are deposited on the printed product, the printed product can be formed without building a structure for a complex product structure, and the surface of the product is smoother.
Description
Technical Field
The utility model belongs to the technical field of 3D printing equipment, and discloses a 3D printing device.
Background
The additive manufacturing technology is a rapid forming technology developed in recent years, and is widely applied to the fields of military industry, aerospace, biomedical treatment and the like by virtue of the advantages of integrated forming, personalized and customized manufacturing and formable complex cavities. Additive manufacturing is also called 3D printing, and the molding principle is as follows: according to the slice data of the model slice, the object is directly formed in a layer-by-layer stacking mode. Among them, fused deposition modeling (Fused deposition modeling, FDM) is the most common technique in additive manufacturing, and extrusion molding of molten or flowing viscous liquid by a nozzle according to a planned path of model slice data has advantages of low cost and wide application materials.
However, fused deposition modeling 3D printing devices print product structures with relatively large bending angles, such as cantilever, suspension, etc., with inclination angles greater than forty-five degrees, which are difficult to model. Because the print heads are fixed perpendicular to the forming table and the material printed onto the product structure requires some time to cure to form. When structures with inclination angles greater than forty-five degrees are printed, the material can deform and collapse under the influence of gravity before being fully cured and molded. Thus, conventional 3D printing devices typically require the addition of support structures to support such structures, but the presence of support structures increases the difficulty of removal and even affects the surface molding quality of the molded product.
Disclosure of Invention
The utility model aims to provide a 3D printing device which can print and shape a complex product structure without building the structure, so that the surface of the product is smoother. The technical problem that the cantilever, suspension and structure with the angle larger than forty-five degrees of printed products are difficult to form by the traditional 3D printing device is solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a 3D printing apparatus, comprising: fixing the underframe;
the melt extrusion assembly is arranged on the fixed underframe;
the mechanical arm assembly is arranged on one side of the fixed underframe;
the mechanical arm assembly comprises a mechanical arm arranged on one side of the fixed underframe and a forming platform arranged on the mechanical arm, the mechanical arm is used for driving the forming platform to move in a three-dimensional space, the forming platform is used for supporting a product to be printed, and the melt extrusion assembly is used for extruding raw materials of the printed product to the forming platform.
The utility model is further characterized in that the fixed underframe is provided with a material frame and a mounting foot, the material frame is used for mounting the material box component, and the mounting foot is used for supporting the fixed underframe.
The utility model further provides that the fixed underframe is provided with a material box assembly, the material box assembly comprises a material gate and a material wire wound on the material gate, the material gate is provided with a through hole, and the material gate is rotationally connected to the material frame through the through hole.
The present utility model is further configured such that the melt extrusion assembly comprises: the mounting bracket is fixedly connected to the fixed underframe in a threaded manner;
at least one transmission assembly, the transmission assembly is arranged on the mounting bracket;
the heating extrusion module is arranged on the mounting bracket and close to the transmission assembly;
the spray head is arranged at the output end of the heating extrusion module;
the heating extrusion module is used for heating and melting the material wire transmitted by the transmission assembly and extruding the melted material wire.
The utility model is further arranged that the heated extrusion module comprises: the module shell is arranged on the mounting bracket;
the heating cylinder body is used for heating the material wire and is arranged on the module shell;
the extrusion piston rod is used for extruding the material wire and is movably connected in the heating cylinder body;
the linear displacement driving piece is arranged on the module shell;
the output shaft of the linear displacement driving piece is connected with the extrusion piston rod, the linear displacement driving piece is used for driving the extrusion piston rod, and the heating cylinder body is provided with a heating structure.
The utility model is further characterized in that a feeding hole is formed in the heating cylinder body at a position close to the transmission assembly, and the material wire penetrates through the feeding hole.
The utility model is further arranged that a discharge hole is formed in the bottom of the heating cylinder body, and the spray head is sleeved on the discharge hole.
The utility model further provides that the mechanical arm assembly further comprises a mounting base, wherein the mounting base is arranged on one side of the fixed underframe, and the mechanical arm is arranged on the mounting base.
In summary, compared with the prior art, the utility model has the following beneficial effects: a 3D printing apparatus, comprising: fixing the underframe; the melt extrusion assembly is arranged on the fixed underframe; the mechanical arm assembly is arranged on one side of the fixed underframe; the mechanical arm assembly comprises a mechanical arm arranged on one side of the fixed underframe and a forming platform arranged on the mechanical arm, the mechanical arm is used for driving the forming platform to move in a three-dimensional space, the forming platform is used for supporting a product to be printed, and the melt extrusion assembly is used for extruding raw materials of the printed product to the forming platform. The mechanical arm and the forming platform are used for driving the printed product to move in a three-dimensional space, so that raw materials extruded by the melt extrusion assembly are deposited on the printed product, the printed product can be formed without building a structure for a complex product structure, and the surface of the product is smoother. The technical problem that the cantilever, suspension and structure with the angle larger than forty-five degrees of printed products are difficult to form by the traditional 3D printing device is solved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a 3D printing device according to the present embodiment;
fig. 2 is a schematic structural diagram of a melt extrusion assembly of a 3D printing device according to the present embodiment.
In the figure: 2. fixing the underframe; 21. a material rack; 22. mounting the pin; 3. a melt extrusion assembly; 31. a mounting bracket; 32. a transmission assembly; 33. heating the extrusion module; 331. a module housing; 332. heating the cylinder body; 3321. a feed inlet; 3322. a discharge port; 333. extruding a piston rod; 334. a linear displacement driving member; 335. a heating structure; 34. a spray head; 4. a material cartridge assembly; 41. a material gate; 42. a material wire; 43. a through hole; 5. a robotic arm assembly; 51. a mechanical arm; 52. a forming platform; 53. and (5) mounting a base.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the accompanying drawings and examples, it being understood that the specific examples described herein are for illustration only and are not intended to limit the present utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, or can be communicated inside the two components, or can be connected wirelessly or in a wired way. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features described above in the different embodiments of the present utility model may be combined with each other as long as they do not collide with each other.
The present utility model provides a 3D printing apparatus as shown in fig. 1 and 2, comprising: a fixed chassis 2, a melt extrusion assembly 34, and a robotic arm assembly 5. The melt extrusion assembly 3 is arranged on the fixed underframe 2; the mechanical arm assembly 5 is arranged on one side of the fixed underframe 2; the mechanical arm assembly 5 comprises a mechanical arm 51 arranged on one side of the fixed underframe 2 and a forming platform 52 arranged on the mechanical arm 51, the mechanical arm 51 is used for driving the forming platform 52 to move in a three-dimensional space, the forming platform 52 is used for supporting a product to be printed, and the melt extrusion assembly 3 is used for extruding raw materials of the printed product to the forming platform 52.
The conventional 3D printing device has difficulty in forming a cantilever, a suspension, and a structure having an angle greater than forty-five degrees for a printed product. It is often necessary to add support structures to support the cantilever, suspension, and angle of the printed product greater than forty-five degrees, but the added tiny support structures are difficult to remove on the molded product, affecting the surface molding quality of the molded product.
According to the utility model, the mechanical arm 51 and the forming platform 52 drive the printed product to move in a three-dimensional space, so that the raw materials extruded by the melt extrusion assembly 3 are deposited on the printed product, and the printed product can be formed without building a structure for a complex product structure, so that the surface of the product is smoother. Namely, the melt extrusion assembly 3 is fixedly or slidingly connected to the fixed underframe 2, one-dimensional extrusion action is realized by extruding the raw materials molded by the product through the melt extrusion assembly 3, and the temperature and extrusion speed of the raw materials are controlled through the transmission assembly 32 and the heating extrusion module 33; the three-dimensional morphology of the printed product is shaped by the coupled motion of the multi-axis mechanical arm 51 and the shaping platform 52. Structures with inclination angles larger than forty-five degrees, such as cantilevers, suspensions and the like, can be printed without adding a supporting structure to support, so that the product forming surface is smoother. Not only improves the degree of freedom of molding, but also saves printing materials. The technical problem that the cantilever, suspension and structure with the angle larger than forty-five degrees of printed products are difficult to form by the traditional 3D printing device is solved.
The raw material is a material wire 42. The two described objects are the same, but are different.
Further, the fixed chassis 2 is provided with a material rack 21 and a mounting leg 22, the material rack 21 is used for mounting the material box assembly 4, and the mounting leg 22 is used for supporting the fixed chassis 2.
It will be appreciated that the mounting feet 22 can be used to stably hold the fixed chassis 2, and the end of the mounting feet 22 close to the ground can be provided with an anti-slip rubber block to prevent slipping of the device.
Further, the fixed chassis 2 is provided with a material box assembly 4, the material box assembly 4 comprises a material gate 41 and a material wire 42 wound on the material gate 41, the material gate 41 is provided with a through hole 43, and the material gate 41 is rotatably connected to the material frame 21 through the through hole 43.
The material wire 42 is wound around the material magazine 41, and the material gate 41 is rotatably connected to the material frame 21 through the through hole 43. When the transmission assembly 32 conveys the material wire 42, the material wire 42 pulls the material wire 42, and the material wire 41 is driven by the pulling force of the transmission assembly 32. In addition, a stopper may be provided at the end of the material rack 21 to prevent the material cassette from being separated from the material rack 21 when the material wire 42 is conveyed.
Further, as shown in fig. 2, the melt extrusion assembly 3 includes: the mounting bracket 31, the mounting bracket 31 is fixedly connected to the fixed underframe 2 in a threaded manner;
at least one transmission assembly 32, the transmission assembly 32 being provided on the mounting bracket 31;
the heating extrusion module 33, the heating extrusion module 33 is arranged on the mounting bracket 31 at a position close to the transmission assembly 32;
and a nozzle 34, the nozzle 34 being provided at an output end of the heating extrusion module 33;
wherein the transmission assembly 32 is used for conveying the material wire 42, and the heating extrusion module 33 is used for heating and melting the material wire 42 conveyed by the transmission assembly 32 and extruding the melted material wire 42.
The material wire 42 is made of plastic, which melts when heated and solidifies after cooling. The melt extrusion assembly 3 conveys the material wire 42 to the heating extrusion module 33 through the transmission assembly 32 for heating and melting, and the heating extrusion module 33 extrudes and outputs melted plastic to the forming platform 52 on the mechanical arm 51, and the melted plastic is cooled and formed on the forming platform 52, so that the product shaping is realized.
Further, the heating extrusion module 33 includes: the module housing 331, the module housing 331 is set up on the mounting bracket 31;
a heating cylinder 332 for heating the material wire 42, the heating cylinder 332 being provided on the module case 331;
an extruding piston rod 333 for extruding the material wire 42, the extruding piston rod 333 being movably connected in the heating cylinder 332;
and a linear displacement driving member 334, the linear displacement driving member 334 being provided on the module housing 331;
the output shaft of the linear displacement driving member 334 is connected to the extrusion piston rod 333, the linear displacement driving member 334 is used for driving the extrusion piston rod 333, and the heating cylinder 332 is provided with a heating structure 335.
The linear displacement driving member 334 drives the extrusion piston rod 333 to perform a piston movement in the heating cylinder 332, so as to extrude the melted plastic in the heating cylinder 332. The heating structure 335 may heat the heating cylinder 332 to a temperature at which the wire 42 is easily melted.
Further, a feeding port 3321 is formed in the heating cylinder 332 near the transmission assembly 32, and the material wire 42 penetrates through the feeding port 3321.
Further, a discharge hole 3322 is formed in the bottom of the heating cylinder 332, and the spray head 34 is sleeved on the discharge hole 3322.
A discharge port 3322 is provided at the bottom of the heating cylinder 332 to facilitate the discharge of melted plastic. Discharged through the spray head 34.
Further, the mechanical arm assembly 5 further includes a mounting base 53, the mounting base 53 is disposed on one side of the fixed chassis 2, and the mechanical arm 51 is disposed on the mounting base 53.
It will be appreciated that the robotic arm 51 is mounted and secured by the mounting base 53, wherein the mounting base 53 and the fixed chassis 2 remain relatively stationary, ensuring the accuracy of the printed product of the device. And the robotic arm 51 drives the modeling stage 52 around the jets 34 to move in three dimensions to print the product.
In summary, the utility model has the following beneficial effects: a 3D printing apparatus, comprising: a fixed chassis 2; a melt extrusion assembly 3, the melt extrusion assembly 3 being provided on the fixed chassis 2; the mechanical arm assembly 5 is arranged on one side of the fixed underframe 2; the mechanical arm assembly 5 comprises a mechanical arm 51 arranged on one side of the fixed underframe 2 and a forming platform 52 arranged on the mechanical arm 51, the mechanical arm 51 is used for driving the forming platform 52 to move in a three-dimensional space, the forming platform 52 is used for supporting a product to be printed, and the melt extrusion assembly 3 is used for extruding raw materials of the printed product to the forming platform 52. The mechanical arm 51 and the forming platform 52 drive the printed product to move in a three-dimensional space, so that raw materials extruded by the melt extrusion assembly 3 are deposited on the printed product, and the printed product can be formed without building a structure for a complex product structure, so that the surface of the product is smoother. The technical problem that the cantilever, suspension and structure with the angle larger than forty-five degrees of printed products are difficult to form by the traditional 3D printing device is solved.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (6)
1. A 3D printing apparatus, comprising: fixing the underframe;
the melt extrusion assembly is arranged on the fixed underframe;
the mechanical arm assembly is arranged on one side of the fixed underframe;
the mechanical arm assembly comprises a mechanical arm arranged on one side of the fixed underframe and a forming platform arranged on the mechanical arm, the mechanical arm is used for driving the forming platform to move in a three-dimensional space, the forming platform is used for supporting a product to be printed, and the melt extrusion assembly is used for extruding raw materials of the printed product to the forming platform;
the material box assembly comprises a material gate and a material wire wound on the material gate, and the material gate is provided with a through hole;
the material rack is used for installing the material box assembly, and the installation pin is used for supporting the fixed underframe;
the material gate is rotatably connected to the material frame through the through hole.
2. The 3D printing device of claim 1, wherein the melt extrusion assembly comprises: the mounting bracket is fixedly connected to the fixed underframe in a threaded manner;
at least one transmission assembly, the transmission assembly is arranged on the mounting bracket;
the heating extrusion module is arranged on the mounting bracket and close to the transmission assembly;
the spray head is arranged at the output end of the heating extrusion module;
the heating extrusion module is used for heating and melting the material wire transmitted by the transmission assembly and extruding the melted material wire.
3. A 3D printing device according to claim 2, wherein the heated extrusion module comprises: the module shell is arranged on the mounting bracket;
the heating cylinder body is used for heating the material wire and is arranged on the module shell;
the extrusion piston rod is used for extruding the material wire and is movably connected in the heating cylinder body;
the linear displacement driving piece is arranged on the module shell;
the output shaft of the linear displacement driving piece is connected with the extrusion piston rod, the linear displacement driving piece is used for driving the extrusion piston rod, and the heating cylinder body is provided with a heating structure.
4. A 3D printing device according to claim 3, wherein the heating cylinder body is provided with a feed inlet at a position close to the transmission assembly, and the material wire penetrates through the feed inlet.
5. A 3D printing device according to claim 3, wherein the bottom of the heating cylinder is provided with a discharge port, and the nozzle is sleeved on the discharge port.
6. The 3D printing device of claim 1, wherein the mechanical arm assembly further comprises a mounting base, the mounting base being disposed on one side of the fixed chassis, the mechanical arm being disposed on the mounting base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223184757.XU CN219256481U (en) | 2022-11-28 | 2022-11-28 | 3D printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223184757.XU CN219256481U (en) | 2022-11-28 | 2022-11-28 | 3D printing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219256481U true CN219256481U (en) | 2023-06-27 |
Family
ID=86859159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223184757.XU Active CN219256481U (en) | 2022-11-28 | 2022-11-28 | 3D printing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219256481U (en) |
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2022
- 2022-11-28 CN CN202223184757.XU patent/CN219256481U/en active Active
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