Textile machine adjustment method and system thereof

Patent metadata

Field	Value
Publication number	US-10119210-B1
Application number	US-201715834327-A
Country	US
Kind code	B1
Filing date	Dec 7, 2017
Priority date	Nov 22, 2017
Publication date	Nov 6, 2018
Grant date	Nov 6, 2018

Abstract

A textile machine adjustment method is provided. An operating speed of a textile machine within an operating range is set by a processor according to the basic information of the fabric. A motion image of the fabric and the vibration characteristics of the yarns are recorded by a video camera. The operating speed of the textile machine is adjusted at least once, and the vibration characteristics of the yarns is analyzed after each adjustment of the operating speed. Multiple correlation factor functions and the relative weights of the multiple factors related to the operating speed of the textile machine are recorded. The relative weights of the multiple factors are adjusted according to a yield quality of the fabric. When an expected value is met, the fabric continues to be produced at the current operating speed; otherwise, the relative weights of multiple factors are adjusted to correct the operating speed.

First claim

What is claimed is:

1. A textile machine adjustment method comprising following steps performed by a processor, wherein the method comprises:
inputting a basic information of a fabric to the processor, wherein the processor sets an operating speed of a textile machine within an operating range according to the basic information of the fabric;
recording a motion image of the fabric at a current operating speed and vibration characteristics of a plurality of yarns of the fabric by a video camera;
adjusting the operating speed of the textile machine at least once and analyzing the vibration characteristics of the yarns by the processor after each adjustment of the operating speed;
recording a plurality of correlation factor functions related to the operating speed of the textile machine, wherein the correlation factor functions comprise a plurality of factors each having a relative weight and being constructed according to the basic information of the fabric and the vibration characteristics of the yarns; and
adjusting the relative weights of the factors according to a yield quality of the fabric, wherein the processor enables the textile machine to continue to produce the fabric at the current operating speed when the yield quality of the fabric meets an expected value, or the processor adjusts the relative weights of the factors to correct the operating speed when the yield quality of the fabric does not meet the expected value.

2. The adjustment method according to claim 1 , wherein the basic information of the fabric comprises at least one of a material, Danny number, fiber specification, twist, and a processing method of the fabric.

3. The adjustment method according to claim 1 , wherein the step of recording and analyzing the vibration characteristics of the yarns comprises recording a motion locus of each yarn in the motion image on a projection plane perpendicular to a moving direction of the yarns, wherein the motion locus of each yarn has a plurality of position points, and the processor analyzes and uses a displacement of the position points with respect to an view point as an amplitude of the motion locus, uses a time required for the position points to make one circuit of the observation point as a period of the motion locus, and constructs the factors according to the amplitude and the period of the motion locus.

4. The adjustment method according to claim 3 , wherein the step of recording and analyzing the vibration characteristics of the yarns further comprises recording a motion path of the motion locus of each yarn on an axial direction of the projection plane, wherein the motion path is a projection of the position points on the axial direction, each yarn has an initial height, and the processor analyzes a maximum displacement of each height of the position points on the axial direction with respect to the initial height, and constructs the factors according to the maximum displacement.

5. The adjustment method according to claim 4 , wherein the video camera is disposed in a direction parallel to the moving direction of the yarns, and a height of the video camera is aligned with the initial height of the yarns.

6. The adjustment method according to claim 1 , wherein the step of adjusting the relative weights of a plurality of factors comprises determining whether one of the factors affecting the yield quality of the fabric is a positive correlation factor or a negative correlation factor, wherein the processor increases the relative weight of the positive correlation factor when the one factor is determined as a positive correlation factor or reduces the relative weight of the negative correlation factor when the one factor is determined as a negative correlation factor.

7. The adjustment method according to claim 1 , wherein the step of detecting the yield quality of the fabric comprises detecting quantity and density of defects of the yarns.

8. An textile machine adjustment system, comprising:
a connection interface connected to a textile machine for receiving a basic information of a fabric and an operating speed of the textile machine;
a video camera disposed in front of the textile machine for recording a motion image of the fabric at a current operating speed and vibration characteristics of a plurality of yarns of the fabric;
a storage device used for storing the basic information of the fabric, the operating speed of the textile machine, and the motion image of the fabric at the operating speed; and
a processor electrically connected to the video camera and the storage device via a connection interface, wherein the processor sets the operating speed of the textile machine within an operating range according to the basic information of the fabric, adjusts the operating speed of the textile machine at least once, and analyzes the vibration characteristics of the yarns after each adjustment of the operating speed,
wherein the processor records a plurality of correlation factor functions related to the operating speed of the textile machine, the correlation factor functions comprise a plurality of factors each having a relative weight and being constructed according to the basic information of the fabric and the vibration characteristics of the yarns;
wherein the processor adjusts the relative weights of the factors according to a yield quality of the fabric; the processor enables the textile machine to continue to produce the fabric at the current operating speed when the yield quality of the fabric meets an expected value, or the processor adjusts the relative weights of the factors to correct the operating speed when the yield quality of the fabric does not meet the expected value.

9. The adjustment system according to claim 8 , wherein the basic information of the fabric comprises at least one of a material, Danny number, fiber specification, twist, and a processing method of the fabric.

10. The adjustment system according to claim 8 , wherein the step of recording and analyzing the vibration characteristics of the yarns comprises recording a motion locus of each yarn in the motion image on a projection plane perpendicular to a moving direction of the yarns, wherein the motion locus of each yarn has a plurality of position points; the processor analyzes a displacement of the position points with respect to an view point, uses the displacement as an amplitude of the motion locus, uses a time required for the position points to make one circuit of the observation point as a period of the motion locus, and constructs the factors according to the amplitude and the period of the motion locus.

11. The adjustment system according to claim 10 , wherein the step of recording and analyzing the vibration characteristics of the yarns further comprises recording a motion path of the motion locus of the yarns on an axial direction of the projection plane, wherein the motion path is a projection of the position points on the axial direction, and each yarn has an initial height, the processor analyzes a maximum displacement of each height of the position points on the axial direction with respect to the initial height, and constructs the factors according to the maximum displacement.

12. The adjustment system according to claim 11 , wherein the video camera is disposed in a direction parallel to the moving direction of the yarns, and a height of the video camera is aligned with the initial height of the yarns.

13. The adjustment system according to claim 8 , wherein the step of adjusting the relative weights of a plurality of factors comprises determining whether one of the factors affecting the yield quality of the fabric is a positive correlation factor o

Assignees

• Inst Information Ind

Inventors

• Lai Ying-Hsun
• Lai Chin-Feng
• Chang Yao-Chung
• Hsiao Yu-Cheng
• Chuang Chi-Cheng

Classifications

• D03J1/007

  Fabric inspection on the loom and associated loom control · CPC title

• D03D51/007

  Loom optimisation · CPC title

• D04B15/96

  in flat-bed knitting machines · CPC title

• D04B15/99 Primary

  electrically controlled · CPC title

• G01N21/8983

  for testing textile webs, i.e. woven material · CPC title