CN115045025A

CN115045025A - Method for generating three-dimensional printing woven structure

Info

Publication number: CN115045025A
Application number: CN202210672490.4A
Authority: CN
Inventors: 赵曦辰
Original assignee: Yingnuo 3d Shanghai Technology Co ltd
Current assignee: Yingnuo 3d Shanghai Technology Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-09-13
Anticipated expiration: 2042-06-15
Also published as: CN115045025B

Abstract

The invention discloses a method for generating a three-dimensional printing braided structure, belonging 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 into the plane central point of the grid-shaped frame, and taking the geometric center of the frame as the origin of a reference plane, wherein the X, Y vector is in the basic plane, and the Z vector is perpendicular to the basic plane and faces upwards; s2, basic weaving unit and generation process: on the basis of a reference plane, adjacent squares of the grid are alternately distributed in A, B types, and basic weaving units are generated by replacing weaving texture basic shapes with A, B types as a reference; s3, forming a three-dimensional printing weaving structure: the basic weaving units are arranged in an array mode to form an integral three-dimensional printing weaving structure. The method for generating the three-dimensional printing braided structure can realize three-dimensional printing of a complex braided structure and realize a multi-layer braiding effect through the length and diameter change of the wire.

Description

Method for generating three-dimensional printing woven structure

Technical Field

The invention relates to the technical field of three-dimensional weaving, in particular to a method for generating a three-dimensional printing weaving structure.

Background

The traditional knitting structure is formed by criss-cross of 'threads', knitting units are 'threads', and the diameters of the threads are relatively uniform in only two directions, so that the knitted fabric has uniform flexibility and thickness. In addition, the knitting process needs to be completed step by threading, and if an error occurs, the stitch needs to be removed and reworked.

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 woven structure capable of realizing complex woven textures and different extension areas.

In order to achieve the purpose, the invention adopts the following technical scheme:

a three-dimensional printing weaving structure generation method comprises the following steps:

s1, introducing a reference plane: introducing X, Y, Z three vectors which are perpendicular to each other in pairs into the plane central point of the grid-shaped frame, and taking the geometric center of the frame as the origin of a reference plane, wherein the X, Y vector is in the reference plane, and the Z vector is perpendicular to the reference plane and faces upwards;

s2, basic weaving unit and generation process: on the basis of a reference plane, adjacent squares of the grid are alternately distributed in A, B types, and basic weaving units are generated by replacing weaving texture basic shapes with A, B types as a reference;

s3, forming a three-dimensional printing weaving structure: the basic weaving units are arranged in an array mode to form an integral three-dimensional printing weaving structure.

Preferably: the three-dimensional printing weaving structure further comprises a pattern structure layer located on at least one side of the three-dimensional printing weaving structure, the pattern structure layer is connected with the three-dimensional printing weaving structure, and the three-dimensional printing weaving structure is integrally generated through 3D printing.

Preferably, the following components: the array mode in step S3 includes a regular quadrilateral mesh array, a triangular mesh array, a rhombic mesh array, and a hexagonal mesh array.

Preferably: different thread lengths and thread diameters are adopted in the woven structure to form the woven structure with different extension areas.

Preferably, the following components: A. the weave patterns in B are connected or disconnected in the transverse direction and the longitudinal direction by lines to form different staggered modes.

A three-dimensional printing woven lampshade is characterized in that a woven structure of the lampshade is manufactured by adopting the method for generating the woven structure.

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

1. the weaving unit 'line' of the traditional weaving structure is replaced by a basic weaving unit printed in three dimensions, and the integral weaving structure is directly generated by the three-dimensional printing, so that more complex weaving textures can be realized; the three-dimensional printed weaving structure is designed with digital three-dimensional model data by a computer, not only inherits the warp and weft structure of the traditional weaving structure, but also does not need to be a separated structure, and weaving units can be lines in multiple directions and can also be unit links in multiple directions, so that the multilayer overlapped weaving effect is realized.

2. The diameter and the length of the thread can be changed according to the design requirement, and the extensibility of the woven structure is directly influenced by different thread lengths and diameters, namely, the product generated by three-dimensionally printing the woven structure has the overall or local extensibility and is not limited by the final size of the product; with the piling up of printing data similar to the cloth when specifically printing, lay flat in printing apparatus and put and arrange, improve the utilization ratio of printing consumables, reduce the occupation of printing space.

3. The three-dimensional printing compiling structure completes the assembly link in the digital design stage, and the printed cloth 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 also 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 the reference plane coordinates and (b) is the reference plane of the tape woven structure;

FIG. 2 shows basic weaving units, wherein (a) is in an A/B arrangement format, (B) is in an arrangement format with a weaving texture, and (c) is the resulting basic weaving unit;

FIG. 3 is a different knit unit structure formed based on different knit textures within the A/B;

FIG. 4 is a different array format;

FIGS. 5 and 6 are graphs of the change in wire diameter and wire length versus ductility;

FIG. 7 is a three-dimensional printed woven structure with additional pattern structure layers;

FIG. 8 is a schematic view of forming a lamp housing according to embodiment 4;

fig. 9 is a schematic view of forming a lamp housing of embodiment 5.

Detailed Description

The method for generating a three-dimensional printed structure of the present invention will now be described in detail with reference to specific embodiments thereof so that those skilled in the art can fully understand and implement the same.

Example 1

s1. reference plane introduction (as shown in fig. 1): x, Y, Z three vectors which are perpendicular to each other in pairs are introduced from the center point of the plane of the grid-shaped frame, the geometric center of the frame is used as the origin of a reference plane, wherein the X, Y vector is in the reference plane, and the Z vector is perpendicular to the reference plane and faces upwards. Thus, the origin X, Y, Z determines the coordinates of the other object with respect to the reference plane. Namely: the object can be accurately placed at a specified position relative to a reference plane, and the position of the object relative to the reference plane can be 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 perpendicular distance of the object from the reference plane.

S2, basic weaving unit and generation process (as shown in figure 2): on the basis of a reference plane, adjacent squares of the grid are alternately distributed in A, B types, and basic weaving units are generated by replacing weaving texture basic shapes with A, B types as references. Based on the checkerboard principle, A, B are laid flat in an alternating arrangement in a reference plane, wherein A, B in this embodiment the specific weave structures are as shown, with adjacent structures connected.

In a preferred embodiment, the weave structures in A, B may be the same or different, with weave patterns that are connected in the cross direction, the machine direction or not or partially connected by threads to form different patterns of interlacing to form different basic weave units. As shown in fig. 3, in which (a 1) the a/B textures are the same in content and (a 2) is a single-layer non-detachable braided unit structure; (b1) for the same A/B texture content, (B2) a double-layer movable weaving unit structure is formed; (c1) for different A/B texture content, (c 2) is the double layer movable woven unit structure formed.

S3, forming a three-dimensional printing weaving structure: arranging the basic weaving units in an array manner to form an integral three-dimensional printing weaving structure; the array mode can be as follows: regular quadrilateral mesh array, triangular mesh array, rhombic mesh array, hexagonal mesh array. As shown in fig. 4, (a) is a regular quadrilateral mesh, (b) is a triangular mesh, (c) is a rhombic mesh, and (d) is a hexagonal mesh.

Example 2

The different thread lengths and thread diameters in the three-dimensional printed woven structure directly affect the ductility of the woven structure.

As shown in fig. 5, the regions of the braided structure with the same length and smaller wire diameter have better extensibility. As shown in fig. 6, the same wire diameter, longer area has better ductility.

Example 3

As shown in fig. 7: a method for generating a three-dimensional printing woven structure comprises a three-dimensional printing woven layer and a pattern structure layer located above the three-dimensional printing woven layer, wherein the pattern structure layer is connected with the three-dimensional printing woven layer and is integrally generated through 3D printing.

As can be seen from the above embodiments and analysis, the method for generating a woven structure provided by the present invention can be applied to a plurality of fields, in particular, to a three-dimensional printed woven lampshade, and can generate a lampshade structure with a complex shape, for example: multilayer lamp shades, interwoven lamp shades, folding lamp shades and the like. Based on the production method of the woven structure, the woven structure produced by 3D printing has the following advantages: (1) the molding is carried out at one time without assembly; (2) the structure ductility, promptly, do not receive product final dimension's restriction, consequently can be similar to piling up of cloth with the print data, lay flat in printing apparatus and arrange, further improve the utilization ratio of printing consumables.

Example 4

As shown in fig. 8, provided in this embodiment are: the upper and lower layered lampshade forms are generated by utilizing the extensibility of the woven structure. And generating an upper and lower double-layer woven structure, placing the lamp source M in the middle of the double-layer woven structure, pressing the double-layer woven structure on the upper and lower sides of the lamp source M, and utilizing ductility to enable the lampshade to achieve an ideal final shape.

Example 5

As shown in fig. 9, provided in this embodiment are: the shape of the lantern lampshade is finally formed by utilizing the ductility deformation of the woven structure. The inner layer is cage-shaped, the outer layer is hollow column-shaped, the inner diameter of the outer column-shaped structure is larger than the outer diameter of the top opening of the cage-shaped structure, the outer layer is pressed and covered outside the inner layer from top to bottom, and the outer layer is wrapped on the outer wall of the inner layer cage-shaped structure by utilizing the ductility of the outer layer.

It can be seen from the above-described embodiment 4/5 that the use of the ductility of the woven structure of the present invention allows for the rapid formation of more complex lampshade structures by producing two or more components through bonding between the components.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any manner. Those skilled in the art can make many possible variations and modifications to the technical solution of the present invention using the methods disclosed above, or modify equivalent embodiments with equivalent variations, without departing from the technical principle and scope of the present invention. Therefore, any combination, modification or substitution of the technical features disclosed in the present invention according to the technical essence of the present invention should fall within the protection scope of the technical solution of the present invention, unless the principle or the solution of the present invention is departed from.

Claims

1. A method for generating a three-dimensional printing woven structure is characterized by comprising the following steps:

s2, basic weaving unit and generation process: on the basis of a reference plane, adjacent squares of the grid are alternately distributed in A, B types, and basic shapes of weaving textures are used for replacement on the basis of A, B types to generate basic weaving units;

s3, forming a three-dimensional printing weaving structure: and arranging the basic weaving units in an array mode to form an integral three-dimensional printing weaving structure.

2. The method for generating a three-dimensional printed woven structure according to claim 1, further comprising a pattern structure layer on at least one side of the three-dimensional printed woven structure, wherein the pattern structure layer is connected with the three-dimensional printed woven structure and integrally generated through 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 includes a regular quadrilateral mesh array, a triangular mesh array, a diamond mesh array, and a hexagonal mesh array.

4. A method of producing a three-dimensionally printed knitted structure according to claim 1 or 2, wherein different lengths and diameters of thread are used in the three-dimensionally printed knitted structure to form a knitted structure having different regions of extensibility.

5. The method of claim 1 or 2, wherein the weaving texture in step A, B is connected or disconnected with threads in the transverse direction, the longitudinal direction to form different interlacing modes in step S2.

6. A three-dimensional printed woven lampshade characterized in that the woven structure of the lampshade is produced by the production method of claim 1 or 2.