CN111168993B - Rotary adjustable fused deposition printing support device - Google Patents
Rotary adjustable fused deposition printing support device Download PDFInfo
- Publication number
- CN111168993B CN111168993B CN201911418195.0A CN201911418195A CN111168993B CN 111168993 B CN111168993 B CN 111168993B CN 201911418195 A CN201911418195 A CN 201911418195A CN 111168993 B CN111168993 B CN 111168993B
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- support
- moving
- axis
- rod
- lead screw
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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
- 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
- B29C64/171—Processes of additive manufacturing specially adapted for manufacturing multiple 3D objects
- B29C64/182—Processes of additive manufacturing specially adapted for manufacturing multiple 3D objects in parallel batches
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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
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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
- B29C64/245—Platforms or substrates
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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
Abstract
The invention discloses a rotary adjustable fused deposition printing support device. The bracket device is arranged on the mobile device; a plurality of support rods are inserted on the bracket device and move to the positions to be supported to support the physical solid model to be printed; and the support motion control module is respectively connected to the bracket device and the support rod and is used for controlling the motion of the bracket device and the support rod, so that the support rod is unfolded on the bracket device, and the bracket device moves to the position on the mobile device to support the physical entity model to be printed. The rotary adjustable fused deposition printing support device adopts a mechanical structure to support the position of the model to be supported, avoids printing support materials, improves the printing efficiency, reduces the printing cost and can be repeatedly used.
Description
Technical Field
The invention relates to the technical field of 3D printing rapid forming, in particular to a rotary adjustable fused deposition printing supporting device.
Background
Compared with the traditional manufacturing mode, the 3D printing has the advantage of no limitation of the shape of the part, and is particularly suitable for the production and manufacturing of small-batch customized products.
FDM (fused Deposition modeling), which is also called fused Deposition printing, heats a wire to a melting point to be in a semi-liquid molten state, extrudes the wire along a processing track of the part layering cross section contour through a spray head, and cools, solidifies and forms the wire. When forming, the forming of the current layer needs the support of the previous layer of material, and at the suspended part of the part, a support structure needs to be added for auxiliary forming, so that the forming failure is avoided. Because of the viscous nature of the material itself, a length of material in an unsupported state can be kept undeformed, referred to as the critical print length of the material, beyond which no support structure is added. After printing is finished, the supporting structures need to be removed, printing forming efficiency and printing consumables are influenced, and part manufacturing cost is improved.
Currently, many scholars have studied support structure design and generation methods to save printing time and printing materials by optimizing the support structure. There are also studies on supporting devices for supporting suspended parts of the printing physics, for example, patent document CN 105711095 a discloses a supporting device for FDM printing, which supports a three-dimensional model to be printed by a supporting plate capable of lifting. But the liftable supporting flat plate is only suitable for the suspended part of the horizontal plane, and has great application limitation on the free curved surface and the inclined plane.
In summary, in order to solve the limitations of the existing methods, a supporting device for assisting in supporting a printing body by means of an external structure to improve the printing efficiency and reduce the printing consumables is provided.
Disclosure of Invention
In order to overcome the defects in the background art, the invention aims to provide a rotary adjustable fused deposition printing support device, which supports a physical printing entity through a rotary adjustable support rod, further reduces printing time and consumables, and is suitable for fused deposition manufacturing of less complex parts needing simple support.
The technical scheme adopted by the invention comprises the following steps:
a mobile device;
the bracket device is arranged on the mobile device;
the support rods are inserted on the support device and move to the positions to be supported to support the physical solid models to be printed;
and the support motion control module is respectively connected to the bracket device and the support rod and is used for controlling the motion of the bracket device and the support rod, so that the support rod is unfolded on the bracket device, and the bracket device moves to the position on the mobile device to support the physical entity model to be printed.
The moving device is a three-dimensional moving mechanism and specifically comprises a rack, a z-axis moving slide block and a lead screw lifting assembly; the rack is a cuboid frame, and lead screw lifting assemblies are mounted on two sides of the cuboid frame of the rack; each lead screw lifting assembly comprises two y-axis moving sliders, a z-axis positioning guide rod and a z-axis lead screw, the two y-axis moving sliders are respectively installed on the upper portion and the lower portion of the rectangular frame of the rack, the vertically-arranged z-axis positioning guide rod is fixedly connected between the two y-axis moving sliders, and the whole formed by fixedly connecting the two y-axis moving sliders and the z-axis positioning guide rod horizontally moves on the rectangular frame of the rack; a z-axis screw rod is hinged between the two y-axis moving sliding blocks and is parallel to a z-axis positioning guide rod, the z-axis moving sliding block is movably sleeved on an optical axis of the z-axis positioning guide rod, the z-axis moving sliding block is sleeved on the z-axis screw rod through threads at the same time to form a screw rod nut pair, and the end part of the z-axis screw rod is connected with a motor; a guide rail rod is fixedly connected between the z-axis moving sliding blocks of the two lead screw lifting components, a support moving sliding block is movably sleeved on the guide rail rod, and the support device is fixedly arranged on the support moving sliding block of the moving device.
The rotary adjustable fused deposition printing support device provided by the invention has the advantages that the plurality of support rods are arranged below the three-dimensional printing forming area, the support motion control module controls the support rods to move to the support points meeting the critical printing length to support the printed solid three-dimensional model, the printing material support model is not used, the structure is simple, the repeated use is realized, and the printing material and the printing time are effectively reduced.
The bracket moving slide block is moved horizontally, lifted up and down and rotated by the moving device.
The support device freely rotates around a guide rail rod on the moving device, and a plurality of support devices which independently move are connected on the guide rail rod in series.
A plurality of support holes are uniformly distributed on the circumferential surface of each support device, and each support hole is inserted with one support rod.
The support rods perform telescopic motion and are driven by hydraulic pressure, and the support rods move independently.
The supporting motion control module processes and calculates an overall moving path of the support device and a plurality of support rods on the support device on the moving device according to the position to be supported of the three-dimensional model, and drives the support rods to radially extend and retract according to the overall moving path through hydraulic drive and controls a motor to drive the z-axis moving slide block 403 and the guide rail rod to form overall up-and-down lifting movement.
The physical solid model is a printed product of fused deposition printing.
The invention has the following beneficial effects:
the rotary adjustable fused deposition printing support device can dynamically adjust the support rod to move to a position to be supported according to the surface shape of the three-dimensional model and the characteristics of a printing material so as to support a physical printing entity.
For some three-dimensional models, the model support that has printed the shaping can be accomplished and the removal is adjusted to the back, continues to support the model physical entity that will print, realizes that fused deposition prints the in-process and need not to print supporting material to promote printing efficiency, reduce the printing consumptive material, and can carry out the mass printing, can retrieve bearing structure after printing the completion, print next time, the suitability is strong.
Drawings
Fig. 1 is a schematic perspective view of a rotationally adjustable fused deposition printing support device according to the present invention.
Fig. 2 is a perspective view of the support body of the present invention.
Fig. 3 is a schematic structural diagram of a mobile device according to the present invention.
FIG. 4 is a schematic diagram of a first example three-dimensional model implementation support of the present invention.
FIG. 5 is a structural diagram of a support state of a second exemplary three-dimensional model of the present invention.
FIG. 6 is a structural schematic view of another support state of a second example three-dimensional model of the present invention.
In the figure: 1. the device comprises a support rod, 2, a bracket device, 3, a bracket moving slide block, 4, a moving device, 5, a first example three-dimensional model, 6, a second example three-dimensional model, 401, a frame, 402 and a y-axis moving slide block, 403 and a z-axis moving slide block, 404 and a z-axis positioning guide rod, 405 and a z-axis screw rod.
Detailed Description
The invention is described in further detail below with reference to the figures and examples.
As shown in fig. 1, the embodied device moving means, the stand means, the support bar and the support motion control module; the bracket device 2 is arranged on the mobile device 4; a plurality of support rods 1 are inserted on the bracket device 2 and move to the positions to be supported to support the physical solid model to be printed; the support motion control module is respectively connected to the bracket device 2 and the support rod 1 and is used for controlling the motion of the bracket device 2 and the support rod 1, so that the support rod 1 is unfolded on the bracket device 2, and the bracket device 2 moves to a position on the moving device 4 to support the physical entity model to be printed.
As shown in fig. 3, the moving device 4 is a three-dimensional moving mechanism, and specifically includes a frame 401, a z-axis moving slider 403, and a lead screw lifting assembly; the rack 401 is a cuboid frame formed by installing rod pieces and corner pieces, the rod pieces are used as the edges of the cuboid, the corner pieces are used as the corners of the cuboid, the rod pieces are fixedly connected at the corners of the cuboid through the corner pieces, and the two sides of the cuboid frame of the rack 401 are provided with screw rod lifting assemblies; each lead screw lifting assembly comprises two y-axis moving sliders 402, a z-axis positioning guide rod 404 and a z-axis lead screw 405, the two y-axis moving sliders 402 are respectively mounted on rod pieces on the upper portion and the lower portion of a rectangular frame of the rack 401 and move along the x-axis direction, the two y-axis moving sliders 402 horizontally move along the rod pieces of the rectangular frame of the rack 401, the vertically-arranged z-axis positioning guide rods 404 are fixedly connected between the two y-axis moving sliders 402, and the whole formed by fixedly connecting the two y-axis moving sliders 402 and the z-axis positioning guide rods 404 horizontally moves on the rectangular frame of the rack 401; a z-axis lead screw 405 is hinged between the two y-axis moving sliders 402, the z-axis lead screw 405 is parallel to a z-axis positioning guide rod 404, a light axis on the z-axis positioning guide rod 404 is movably sleeved with the z-axis moving slider 403, the z-axis moving slider 403 is sleeved on the z-axis lead screw 405 through threads to form a lead screw nut pair, and the end part of the z-axis lead screw 405 is connected with a motor; a guide rail rod is fixedly connected between the z-axis moving sliding blocks 403 of the two lead screw lifting components, a support moving sliding block 3 is movably sleeved on the guide rail rod, and a support device 2 is fixedly arranged on the support moving sliding block 3 of the moving device 4. The y-axis moving slider 402 moves along a bar on the frame 401. The carriage moving block 3 and the y-axis moving block 402 are driven by a linear motor and the moving path thereof is controlled by a support motion control module.
The support devices 2 are freely rotating around a guide rail rod on the moving device 4, and a plurality of independently moving support devices 2 are connected in series on the guide rail rod. The supporting rods 1 are driven by hydraulic pressure to move in a telescopic mode, and the supporting rods 1 move independently.
The motor operates to drive the whole body formed by the two z-axis moving sliders 403 and the guide rail rod to move up and down along the z-axis positioning guide rod 404 under the action of the screw nut. The carriage moving block 3 moves horizontally along the guide rail rod. Thus, three degrees of freedom are formed, and the degree of freedom of the support rod 1 itself has four degrees of freedom.
The bracket moving slide block 3 is driven by the moving device 4 to do horizontal movement, up-and-down lifting movement and rotation around the horizontal circumference.
As shown in fig. 2, a plurality of radially-opened bracket holes are uniformly distributed on the circumferential surface of each bracket device 2, each bracket hole is inserted with one support rod 1, and the root of each support rod 1 is inserted into the bracket hole.
The supporting motion control module is connected to a motor and a hydraulic source of the supporting rod 1, processes and calculates the overall moving path of the support device 2 and the supporting rods 1 on the support device on the moving device 4 according to the position to be supported of the three-dimensional model, and controls the motor to drive the z-axis moving slide block 403 and the guide rail rod to form an overall up-and-down lifting movement through the radial expansion of the supporting rod 1 and the control according to the overall moving path.
In order to control and improve the supportable range of the support structure, the moving device can move in the x, y and z directions and is driven by a power source, and the power source is generally a driving motor.
Fig. 4 is a schematic structural diagram of the first example three-dimensional model implementation support of this embodiment. Firstly, a supporting motion control module calculates the part to be supported of a to-be-printed three-dimensional model 5 to be supported, and calculates each supporting point according to the critical printing length of a printing material, a support moving slide block 3 on a moving device 4 moves to the lower area of the to-be-supported position of the three-dimensional model, a support device 2 is controlled to rotate to a specified angle, a plurality of supporting rods 1 move to the specified to-be-supported position to support and print the three-dimensional model 5, and after printing is finished, the supporting rods 1 and the support device 2 move back to the initial position.
Fig. 5 is a schematic structural diagram of a supporting state of the three-dimensional model of the second example of the present embodiment. The physical printing entity is supported by three support rods 1 on three support devices 2 in the support state shown in fig. 5.
Fig. 6 is a schematic structural diagram of another supporting state of the three-dimensional model of the second example of the present embodiment. In the printing state of fig. 5, after the support of the formed solid is completed, the support device 2 is rotated to contract the support rod 1, and the unextended support rod 1 is moved to the designated position to continue to support the printing solid, so that the support device is dynamically adjusted to complete the printing support of the whole model.
Therefore, the rotary adjustable fused deposition printing support device disclosed by the invention has the advantages that the mechanical structure is adopted to support the position to be supported of the model, the printing of a support material is avoided, the printing efficiency is improved, the printing cost is reduced, and the rotary adjustable fused deposition printing support device can be repeatedly used.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents which may be directly or indirectly applied to other related technical fields using the contents of the present specification and the accompanying drawings are also included in the scope of the present invention.
Claims (4)
1. A rotationally adjustable fused deposition printing support apparatus, comprising:
a moving device (4);
the bracket device (2) is arranged on the moving device (4);
the supporting rods (1) are inserted on the bracket device (2) and move to the positions to be supported to support the physical solid model to be printed;
the support motion control module is respectively connected with the bracket device (2) and the support rod (1) and is used for controlling the motion of the bracket device (2) and the support rod (1), so that the support rod (1) is unfolded on the bracket device (2), and the bracket device (2) moves to a position on the moving device (4) to support the physical solid model to be printed;
the moving device (4) is a three-dimensional moving mechanism and specifically comprises a rack (401), a z-axis moving slider (403) and a lead screw lifting assembly; the rack (401) is a cuboid frame, and lead screw lifting assemblies are mounted on two sides of the cuboid frame of the rack (401); each lead screw lifting assembly comprises two y-axis moving sliders (402), a z-axis positioning guide rod (404) and a z-axis lead screw (405), the two y-axis moving sliders (402) are respectively installed on the upper portion and the lower portion of a rectangular frame of the rack (401), the vertically-arranged z-axis positioning guide rod (404) is fixedly connected between the two y-axis moving sliders (402), and the whole formed by fixedly connecting the two y-axis moving sliders (402) and the z-axis positioning guide rod (404) horizontally moves on the rectangular frame of the rack (401); a z-axis lead screw (405) is hinged between the two y-axis moving sliders (402), the z-axis lead screw (405) is parallel to a z-axis positioning guide rod (404), a light axis of the z-axis positioning guide rod (404) is movably sleeved with the z-axis moving slider (403), the z-axis moving slider (403) is sleeved on the z-axis lead screw (405) through threads to form a lead screw nut pair, and the end part of the z-axis lead screw (405) is connected with a motor; a guide rail rod is fixedly connected between the z-axis moving sliding blocks (403) of the two lead screw lifting components, a support moving sliding block (3) is movably sleeved on the guide rail rod, and the support device (2) is fixedly arranged on the support moving sliding block (3) of the moving device (4);
the support moving slide block (3) is driven by the moving device (4) to move horizontally, move up and down and rotate;
the support device (2) freely rotates around a guide rail rod on the moving device (4), and a plurality of independently moving support devices (2) are connected in series on the guide rail rod;
a plurality of support holes are uniformly distributed on the circumferential surface of each support device (2), and each support hole is inserted with one support rod (1).
2. The rotationally adjustable fused deposition printing support device of claim 1, wherein:
the support rods (1) perform telescopic motion, hydraulic drive is adopted, and the support rods (1) move independently.
3. The rotationally adjustable fused deposition printing support device of claim 1, wherein:
the supporting motion control module processes and calculates the overall moving path of the support device (2) and the plurality of support rods (1) on the support device (4) according to the position to be supported of the three-dimensional model, and the overall moving path is formed by radially extending and retracting the support rods (1) through hydraulic driving and controlling the motor to drive the z-axis moving slide block 403 and the guide rail rod to move up and down.
4. The rotationally adjustable fused deposition printing support device of claim 1, wherein:
the physical solid model is a printed product of fused deposition printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418195.0A CN111168993B (en) | 2019-12-31 | 2019-12-31 | Rotary adjustable fused deposition printing support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418195.0A CN111168993B (en) | 2019-12-31 | 2019-12-31 | Rotary adjustable fused deposition printing support device |
Publications (2)
| Publication Number | Publication Date |
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| CN111168993A CN111168993A (en) | 2020-05-19 |
| CN111168993B true CN111168993B (en) | 2021-02-12 |
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| CN201911418195.0A Active CN111168993B (en) | 2019-12-31 | 2019-12-31 | Rotary adjustable fused deposition printing support device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116871534B (en) * | 2023-09-07 | 2023-12-01 | 江苏大学 | Selective laser melting conformal supporting device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10471671B2 (en) * | 2015-11-09 | 2019-11-12 | Nike, Inc. | Three-dimensional printing along a curved surface |
| US10137632B2 (en) * | 2015-11-11 | 2018-11-27 | Xerox Corporation | Method of removing support structure using integrated fluid paths |
| CN105584053B (en) * | 2016-03-07 | 2018-08-03 | 江苏江昕轮胎有限公司 | A kind of 3D printer of manufacture hollow rubber tire |
| CN107498875B (en) * | 2017-09-08 | 2019-04-23 | 浙江大学 | A kind of adjustable external means of support of 3D printing |
| CN208773927U (en) * | 2018-08-29 | 2019-04-23 | 河北宏福塑料制品有限公司 | A kind of PVC glove production line wrist accelerator |
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