CN-117569001-B - Synchronous forming method of two-dimensional multilayer fabric

CN117569001BCN 117569001 BCN117569001 BCN 117569001BCN-117569001-B

Abstract

The invention provides a synchronous forming method of a two-dimensional multilayer fabric, which comprises the steps of obtaining fabric types and physical parameters of the two-dimensional multilayer fabric to be woven, wherein the fabric types comprise rectangular section fabric and rotary section fabric, the physical parameters comprise fabric layers and fabric lengths, the braiding machine is subjected to grouping treatment based on the fabric layers to obtain standard braiding machines with n layers of spindles, the number of the braiding machines is the same as that of the fabric layers, n is an odd number larger than 1, yarns are mounted to the standard braiding machines according to a preset scheme, and the yarns are braided by the spindles based on the fabric types to obtain the two-dimensional multilayer fabric to be woven. The scheme can improve the weaving efficiency of the multi-layer two-dimensional fabric, and simultaneously meets the requirements of adjustable weaving angles of the inner layer and the outer layer of the fabric, changeable thickness of the single-layer fabric and strong designability of the fabric.

Inventors

TANG YINAN
WANG YU
CHEN TIANYU
LIU HAIKUAN

Assignees

南京玻璃纤维研究设计院有限公司

Dates

Publication Date: 20260508
Application Date: 20231120

Claims (9)

1. A method for simultaneous forming of two-dimensional, multi-layer fabrics, comprising: Obtaining the fabric type and physical parameters of a two-dimensional multilayer fabric to be woven, wherein the fabric type comprises a rectangular section fabric and a rotary section fabric, and the physical parameters comprise the number of fabric layers and the length of the fabric; Grouping the braiding machines based on the number of the fabric layers to obtain each group of standard braiding machines with n layers of spindles, wherein the number of the braiding machines is the same as the number of the fabric layers, and n is an odd number larger than 1; Installing yarn to the standard braiding machine according to a preset scheme includes: When the two-dimensional multilayer fabric to be woven is a fabric with rectangular cross section, in the first step M spindles are added at one end of the layer spindle, the first spindle The other end of the layer spindle is not added with spindles, m is a positive integer, and the scheme is that the first layer to the second layer of each group of spindles Layer-by-layer one spindle for hanging yarn, the first Layer-to-nth-interval one spindle yarn hanging and nth All layers are hung with yarns, and the first layer is from the first layer to the second layer Yarns of layer and the first Yarns from layer to nth layer are not in the same column; And weaving the yarns by utilizing spindles based on the fabric type to obtain the two-dimensional multilayer fabric to be woven.
2. The method according to claim 1, wherein said braiding said yarns with spindles based on said fabric type, resulting in said two-dimensional multilayer fabric to be braided, comprises: When the two-dimensional multilayer fabric to be woven is a fabric with a rectangular section, the spindle is made to execute a first movement scheme, the first movement scheme is repeatedly executed until the two-dimensional multilayer fabric to be woven meets the fabric length, wherein the first movement scheme comprises the following steps of The layer spindle moves to one side without adding m spindles for m units, and the first layer to the second layer Layered spindle and the first layer Layer spindle in the same row The layered spindle moving downwards Unit of (a) Layer-to-nth layer spindle and said nth layer spindle Layer spindle in the same row The layered spindle moves upward A unit of, and then subjecting the first The layer spindle moves in the opposite direction for m units, the first layer to the second layer Layered spindle and the first layer Layer spindle in the same row The layered spindle moves upward Units of, the first Layers to nth layer and the th layer Layer spindle in the same row The layered spindle moving downwards A unit of; When the two-dimensional multilayer fabric to be woven is a fabric with a rotary section, the spindle is made to execute a second movement scheme, the second movement scheme is repeatedly executed until the two-dimensional multilayer fabric to be woven meets the fabric length, wherein the second movement scheme comprises the following steps of The layer spindle moves along the clockwise direction by any positive integer number of units, the first layer to the second layer Layered spindle and the first layer Layer spindle in the same row The layered spindle moves in a direction away from the center of the circle Unit of (a) Layer-to-nth layer spindle and said nth layer spindle Layer spindle in the same row The layered spindle moves in the direction close to the center of the circle A unit of, and then subjecting the first The layer spindle moves along the anticlockwise direction by any positive integer number of units, and the first layer to the second layer Layered spindle and the first layer Layer spindle in the same row The layered spindle moves in the direction close to the center of the circle Units of, the first Layer-to-nth layer spindle and said nth layer spindle Layer spindle in the same row The layered spindle moves in a direction away from the center of the circle Units of.
3. The method of claim 2, wherein each layer of the same set of spindles moves simultaneously.
4. The method of claim 2, wherein each set of said spindles moves independently.
5. The method of claim 2, wherein there are at least two sets of said spindles moving simultaneously.
6. The method according to claim 1, wherein when the two-dimensional multilayer fabric to be woven is a fabric of revolution section, the first The number of layered spindle is even.
7. The method of claim 1, wherein an axial spindle is disposed between two adjacent layers of said spindles.
8. The method of claim 1, wherein the number of columns of spindles in each set is different.
9. The method of claim 1, wherein the number of yarns on each set of said spindles is different.

Description

Synchronous forming method of two-dimensional multilayer fabric Technical Field The invention relates to the technical field of three-dimensional fabric forming, in particular to a synchronous forming method of two-dimensional multi-layer fabric. Background The two-dimensional woven fabric has the advantages of designable weaving angle, net size, forming and the like, and the reinforced composite material has the properties of high specific strength, large specific modulus, impact resistance, fatigue resistance and the like, and becomes a potential light structural material. In the related art, as the movement mode of the spindle is too single, after one layer of fabric is woven, the mandrel is required to be returned to the initial position again, and then the next layer of fabric is woven, so that the weaving efficiency of the fabric is greatly reduced. Based on this, a synchronous forming method of two-dimensional multi-layer fabric is needed to solve the above technical problems. Disclosure of Invention In order to effectively improve the weaving efficiency of the fabric, the embodiment of the invention provides a synchronous forming method of a two-dimensional multilayer fabric. The embodiment of the invention provides a synchronous forming method of a two-dimensional multilayer fabric, which comprises the following steps: Obtaining the fabric type and physical parameters of a two-dimensional multilayer fabric to be woven, wherein the fabric type comprises a rectangular section fabric and a rotary section fabric, and the physical parameters comprise the number of fabric layers and the length of the fabric; Grouping the braiding machines based on the number of the fabric layers to obtain each group of standard braiding machines with n layers of spindles, wherein the number of the braiding machines is the same as the number of the fabric layers, and n is an odd number larger than 1; Installing yarns to the standard braiding machine according to a preset scheme, wherein the scheme is that each group of spindles is formed according to a first layer to a second layer Layer-by-layer one spindle yarn hangingLayer-to-nth-interval one spindle yarn hanging and nthAll layers are hung with yarns, and the first layer is from the first layer to the second layerYarns of layer and the firstYarns from layer to nth layer are not in the same column; And weaving the yarns by utilizing spindles based on the fabric type to obtain the two-dimensional multilayer fabric to be woven. Preferably, the mounting of the yarn to the standard braiding machine according to a preset scheme comprises: When the two-dimensional multilayer fabric to be woven is a fabric with rectangular cross section, in the first step M spindles are added at one end of the layer spindle, the first spindleAnd the other end of the layer spindle is not added with a spindle, wherein m is a positive integer. Preferably, the braiding of the yarn by means of a spindle based on the fabric type results in the two-dimensional multilayer fabric to be braided, comprising: When the two-dimensional multilayer fabric to be woven is a fabric with a rectangular section, the spindle is made to execute a first movement scheme, the first movement scheme is repeatedly executed until the two-dimensional multilayer fabric to be woven meets the fabric length, wherein the first movement scheme comprises the following steps of The layer spindle moves to one side without adding m spindles for m units, and the first layer to the second layerLayered spindle and the first layerLayer spindle in the same rowThe layered spindle moving downwardsUnit of (a)Layer-to-nth layer spindle and said nth layer spindleLayer spindle in the same rowThe layered spindle moves upwardA unit of, and then subjecting the firstThe layer spindle moves in the opposite direction for m units, the first layer to the second layerLayered spindle and the first layerLayer spindle in the same rowThe layered spindle moves upwardUnits of, the firstLayers to nth layer and the th layerLayer spindle in the same rowThe layered spindle moving downwardsA unit of; When the two-dimensional multilayer fabric to be woven is a fabric with a rotary section, the spindle is made to execute a second movement scheme, the second movement scheme is repeatedly executed until the two-dimensional multilayer fabric to be woven meets the fabric length, wherein the second movement scheme comprises the following steps of The layer spindle moves along the clockwise direction by any positive integer number of units, the first layer to the second layerLayered spindle and the first layerLayer spindle in the same rowThe layered spindle moves in a direction away from the center of the circleUnit of (a)Layer-to-nth layer spindle and said nth layer spindleLayer spindle in the same rowThe layered spindle moves in the direction close to the center of the circleA unit of, and then subjecting the firstThe layer spindle moves along the anticlockwise direction