CN115045025B - Method for generating three-dimensional printing knitting structure - Google Patents
Method for generating three-dimensional printing knitting structure Download PDFInfo
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- CN115045025B CN115045025B CN202210672490.4A CN202210672490A CN115045025B CN 115045025 B CN115045025 B CN 115045025B CN 202210672490 A CN202210672490 A CN 202210672490A CN 115045025 B CN115045025 B CN 115045025B
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D25/00—Woven fabrics not otherwise provided for
- D03D25/005—Three-dimensional woven fabrics
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- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Woven Fabrics (AREA)
Abstract
The invention discloses a method for generating a three-dimensional printing braiding structure, and belongs to the technical field of three-dimensional braiding; the method comprises the following steps: s1, introducing a reference plane: introducing X, Y, Z three vectors which are perpendicular to each other in pairs by using the plane center point of the grid-shaped frame, and taking the geometric center of the frame as the origin of a reference plane, wherein X, Y vectors are in a basic plane, and Z vectors are perpendicular to the basic plane upwards; s2, a basic weaving unit and a generation process: based on a reference plane, the adjacent square grids of the field grid are alternately distributed in A, B types, and the basic weaving units are generated by replacing basic shapes of the weaving textures with A, B types serving as references; s3, forming a three-dimensional printing knitting structure: the basic knitting units are arranged in an array mode to form a whole three-dimensional printing knitting structure. The method for generating the three-dimensional printing braided structure can realize three-dimensional printing of a complex braided structure, and achieves a multi-layer braiding effect through the length and diameter changes of the wires.
Description
Technical Field
The invention relates to the technical field of three-dimensional braiding, in particular to a method for generating a three-dimensional printing braided structure.
Background
The traditional braiding structure is formed by criss-cross of 'threads', the braiding units are 'threads', and the diameters of the threads are relatively uniform in only two directions, so that the braided cloth has uniform softness and thickness. In addition, the knitting process is to complete the needle threading gradually, and if an error occurs, the stitch breaking and the reworking are needed.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a method for generating a three-dimensional printing knitting structure capable of realizing complex knitting textures and different extension areas.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a method for generating a three-dimensional printing braided structure comprises the following steps:
s1, introducing a reference plane: introducing X, Y, Z three vectors which are perpendicular to each other in pairs by using the plane center point of the grid-shaped frame, and taking the geometric center of the frame as the origin of a reference plane, wherein X, Y vectors are in the reference plane, and Z vectors are perpendicular to the reference plane and upwards;
s2, a basic weaving unit and a generation process: based on a reference plane, the adjacent square grids of the field grid are alternately distributed in A, B types, and the basic weaving units are generated by replacing basic shapes of the weaving textures with A, B types serving as references;
s3, forming a three-dimensional printing knitting structure: the basic knitting units are arranged in an array mode to form a whole three-dimensional printing knitting structure.
Preferably: the three-dimensional printing structure comprises a three-dimensional printing structure, and is characterized by further comprising a pattern structure layer positioned on at least one side of the three-dimensional printing structure, wherein the pattern structure layer is connected with the three-dimensional printing structure and integrally generated through 3D printing.
Preferably: the array mode in the step S3 comprises regular quadrilateral grid array, triangular grid array, diamond grid array and hexagonal grid array.
Preferably: different wire lengths and wire diameters are used in the woven structure to form the woven structure with different extension areas.
Preferably: A. the knitting textures in B are connected or disconnected in the transverse direction and the longitudinal direction by threads to form different staggered modes.
The three-dimensional printing braided lamp shade is characterized in that the braided structure of the lamp shade is manufactured by adopting the method for generating the braided structure.
Compared with the prior art, the invention has the following advantages:
1. the knitting unit 'line' of the traditional knitting structure is replaced by a three-dimensional printing basic knitting unit, and the three-dimensional printing directly generates an integral knitting structure, so that more complex knitting textures can be realized; the three-dimensional printed knitting structure is designed with digital three-dimensional model data by a computer, not only inherits the warp-weft structure of the traditional knitting structure, but also can be a structure that wires are not necessarily separated, and knitting units can be wires in multiple directions or unit links in multiple directions so as to realize the multi-layer overlapped knitting effect.
2. The diameter and the length of the wire can be changed according to the design requirement, and the ductility of the knitting structure is directly affected by different wire lengths and diameters, namely, the product generated by three-dimensional printing of the knitting structure has integral or local ductility, and is not limited by the final size of the product; when specific printing is performed, the printing data are stacked like cloth, are tiled in the printing equipment, the utilization rate of printing consumables is improved, and the occupation of printing space is reduced.
3. The three-dimensional printed compiling structure completes the assembly link in the digital design stage, and the printed fabric structure is complete. The characteristics of the finished product can be well simulated and debugged in the design stage, and errors and weak links of the model can be detected. The uniqueness of the data can also ensure the consistency of the printing result of each product, avoid artificial processing errors and reduce the loss of productivity.
Drawings
FIG. 1 is a reference plane, wherein (a) is a reference plane coordinate and (b) is a reference plane with a woven structure;
FIG. 2 shows a basic knitting unit, wherein (a) is an A/B arrangement format, (B) is an arrangement format with knitting texture, and (c) is a generated basic knitting unit;
FIG. 3 is a diagram of different knit cell structures formed based on different knit textures within A/B;
FIG. 4 shows a different array format;
FIGS. 5 and 6 are graphs showing changes in wire diameter and wire length versus ductility;
FIG. 7 is a three-dimensional printed woven structure with an additional patterned structural layer;
fig. 8 is a schematic diagram of a lampshade according to embodiment 4;
fig. 9 is a schematic diagram of a lampshade according to embodiment 5.
Detailed Description
The method of generating a three-dimensional printed structure of the present invention will now be described in detail with reference to specific embodiments so that those of ordinary skill in the art will fully understand and practice the same.
Example 1
A method for generating a three-dimensional printing braided structure comprises the following steps:
s1. reference plane introduction (as shown in fig. 1): the method comprises the steps of introducing X, Y, Z three vectors which are perpendicular to each other in pairs by using the plane center point of a grid-shaped frame, and taking the geometric center of the frame as the origin of a reference plane, wherein X, Y vectors are in the reference plane, and Z vectors are perpendicular to the reference plane and upwards. The origin, X, Y, Z thus determines the coordinates of other objects with respect to the reference plane. Namely: the object may be precisely placed in a specified position relative to the reference plane, the position of the object relative to the reference plane being expressed by (x, y, z), where x, y represents the position of the object in the plane relative to the origin and z represents the vertical distance of the object from the reference plane.
S2, a basic weaving unit and a generating process (shown in figure 2): the adjacent checks of the grid are alternately distributed in A, B types based on the reference plane, and the basic knitting units are generated by replacing the basic shapes of the knitting textures based on A, B types. Based on the checkerboard principle, the two types A, B are laid out alternately in a reference plane, with A, B being shown in the particular woven structure of this embodiment, with adjacent structures being connected.
In a preferred embodiment, the weave structures within A, B may be the same or different, with or without the weave texture being connected or partially connected in the transverse, longitudinal directions with the threads forming different staggered patterns and thus different base weave elements. As shown in fig. 3, wherein (a 1) is a single-layer non-detachable knitting unit structure formed by the same texture content of the a/B; (b1) The texture content of the A/B is the same, (B2) the formed double-layer movable braiding unit structure; (c1) The texture content is different for A/B, and (c 2) the structure of the formed double-layer movable knitting unit.
S3, forming a three-dimensional printing knitting structure: arranging the basic braiding units in an array manner to form an integral three-dimensional printed braiding structure; the array mode can be as follows: regular tetragonal grid array, triangular grid array, diamond grid array, hexagonal grid array. As shown in fig. 4, (a) is a regular tetragonal mesh, (b) a triangular mesh, (c) a diamond mesh, and (d) a hexagonal mesh.
Example 2
In a three-dimensional printed woven structure, the different wire lengths and wire diameters directly affect the ductility of the woven structure.
As shown in fig. 5, the same wire length in the woven structure, the area with a small wire diameter has better ductility. As shown in fig. 6, the areas of the same wire diameter and the wire length have better ductility.
Example 3
As shown in fig. 7: the method for generating the three-dimensional printing braided structure comprises a three-dimensional printing braided layer and a pattern structure layer positioned above the three-dimensional printing braided layer, wherein the pattern structure layer is connected with the three-dimensional printing braided layer and is integrally generated through 3D printing.
As can be seen from the above embodiments and analysis, the method for generating a braided structure provided by the present invention can be applied to a plurality of fields, especially to a three-dimensional printing braided lamp shade, and can generate a lamp shade structure with a complex shape, for example: multi-layer lamp covers, interweaved lamp covers, folded lamp covers, etc. Based on the production method of the braiding structure, the braiding structure produced by 3D printing has the following advantages: (1) one-step molding, without assembly; (2) The structure is extensible, namely, the structure is not limited by the final size of the product, so that the printing data can be stacked similar to cloth, and the printing material can be laid in a flat manner in printing equipment, so that the utilization rate of the printing material is further improved.
Example 4
As shown in fig. 8, provided in this embodiment are: the upper and lower layered lamp covers are formed by the extensibility of the woven structure. Generating a braiding structure with upper and lower layers, placing a lamp source M in the middle of the braiding structure, and pressing the braiding structure on the upper and lower sides of the lamp source M to enable the lamp shade to achieve an ideal final shape by utilizing ductility.
Example 5
As shown in fig. 9, provided in this embodiment are: the ductility of the knitting structure is utilized to deform into the final shape of the lantern lampshade. The inner layer is in a cage shape, the outer layer is in a hollow column shape, the inner diameter of the column shape of the outer layer is larger than the outer diameter of the opening at the top of the cage shape, the outer layer is covered outside the inner layer from top to bottom, and the outer layer is wrapped on the outer wall of the cage shape of the inner layer by utilizing the ductility of the outer layer.
As is apparent from the above-described embodiments 4/5, the ductility of the woven structure using the present invention can be rapidly formed into a more complex globe structure by producing two or more members through the bonding between the members.
The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention or modifications to equivalent embodiments using the above disclosed method without departing from the technical principle and scope of the solution of the present invention. Therefore, any combination, modification or substitution of the technical features disclosed in the present invention according to the technical substance of the present invention should be within the protection scope of the technical solution of the present invention, wherever the principle or the solution of the present invention is not deviated.
Claims (6)
1. The method for generating the three-dimensional printing braided structure is characterized by comprising the following steps of:
s1, introducing a reference plane: introducing X, Y, Z three vectors which are perpendicular to each other in pairs by using the plane center point of the grid-shaped frame, and taking the geometric center of the frame as the origin of a reference plane, wherein X, Y vectors are in the reference plane, and Z vectors are perpendicular to the reference plane and upwards;
s2, a basic weaving unit and a generation process: based on a reference plane, the adjacent grids of the field character lattice are alternately distributed in A, B types, and the basic shapes of the knitting textures are replaced by the basic shapes of the A, B types serving as references, so that basic knitting units are generated;
s3, forming a three-dimensional printing knitting structure: the basic knitting units are arranged in an array mode to form a whole three-dimensional printing knitting structure.
2. The method for producing a three-dimensional printed woven structure according to claim 1, further comprising a patterned structural layer on at least one side of the three-dimensional printed woven structure, wherein the patterned structural layer is connected to the three-dimensional printed woven structure and integrally produced by 3D printing.
3. The method for generating a three-dimensional printed woven structure according to claim 1 or 2, wherein the array pattern in step S3 comprises a regular quadrilateral mesh array, a triangular mesh array, a diamond mesh array, or a hexagonal mesh array.
4. A method of producing a three-dimensional printed woven structure as claimed in claim 1 or 2, wherein different wire lengths and wire diameters are used in the three-dimensional printed woven structure to form a woven structure having different areas of extensibility.
5. A method of producing a three-dimensional printed woven structure as claimed in claim 1 or claim 2, wherein the woven texture in A, B of step S2 is connected or disconnected in the transverse direction and the longitudinal direction by threads to form different interlacing modes.
6. A three-dimensional printed woven shade, characterized in that the woven structure of the shade is produced by the production method of claim 1 or 2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210672490.4A CN115045025B (en) | 2022-06-15 | 2022-06-15 | Method for generating three-dimensional printing knitting structure |
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| CN202210672490.4A CN115045025B (en) | 2022-06-15 | 2022-06-15 | Method for generating three-dimensional printing knitting structure |
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| CN115045025A CN115045025A (en) | 2022-09-13 |
| CN115045025B true CN115045025B (en) | 2023-08-22 |
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| WO2019092217A1 (en) * | 2017-11-10 | 2019-05-16 | University College Dublin, National University Of Ireland | Woven composite made by additive manufacturing |
| CN110744873A (en) * | 2019-11-22 | 2020-02-04 | 南京工业大学 | 3D printing structure composite material sandwich board with negative Poisson ratio effect and processing method |
| CN110916292A (en) * | 2019-11-11 | 2020-03-27 | 泉州匹克鞋业有限公司 | Negative Poisson ratio vamp structure, manufacturing method thereof and shoes applying negative Poisson ratio vamp structure |
| CN113208250A (en) * | 2021-05-25 | 2021-08-06 | 裕克施乐塑料制品（太仓）有限公司 | Hand bag |
| CN114087520A (en) * | 2021-11-17 | 2022-02-25 | 盐城辉途科技有限公司 | Variable-size tetrahedral unit lattice structure and preparation method thereof |
| CN114407353A (en) * | 2021-10-21 | 2022-04-29 | 南京玻璃纤维研究设计院有限公司 | Composite material and preparation method thereof |
| CN114587713A (en) * | 2022-03-03 | 2022-06-07 | 广州华睿医疗器械有限公司 | Porous support structure for bone repair implant and processing method thereof |
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2022
- 2022-06-15 CN CN202210672490.4A patent/CN115045025B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105984135A (en) * | 2015-01-27 | 2016-10-05 | 常州市东科电子科技有限公司 | 3D printing apparatus for producing woven-type cloth fabric and implementation method |
| WO2019092217A1 (en) * | 2017-11-10 | 2019-05-16 | University College Dublin, National University Of Ireland | Woven composite made by additive manufacturing |
| CN110916292A (en) * | 2019-11-11 | 2020-03-27 | 泉州匹克鞋业有限公司 | Negative Poisson ratio vamp structure, manufacturing method thereof and shoes applying negative Poisson ratio vamp structure |
| CN110744873A (en) * | 2019-11-22 | 2020-02-04 | 南京工业大学 | 3D printing structure composite material sandwich board with negative Poisson ratio effect and processing method |
| CN113208250A (en) * | 2021-05-25 | 2021-08-06 | 裕克施乐塑料制品（太仓）有限公司 | Hand bag |
| CN114407353A (en) * | 2021-10-21 | 2022-04-29 | 南京玻璃纤维研究设计院有限公司 | Composite material and preparation method thereof |
| CN114087520A (en) * | 2021-11-17 | 2022-02-25 | 盐城辉途科技有限公司 | Variable-size tetrahedral unit lattice structure and preparation method thereof |
| CN114587713A (en) * | 2022-03-03 | 2022-06-07 | 广州华睿医疗器械有限公司 | Porous support structure for bone repair implant and processing method thereof |
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| CN115045025A (en) | 2022-09-13 |
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