大小头筒状纬编针织物建模及其线圈长度逆向设计

doi:10.13475/j.fzxb.20200705605

纺织学报 ›› 2021, Vol. 42 ›› Issue (04): 80-84.doi: 10.13475/j.fzxb.20200705605

大小头筒状纬编针织物建模及其线圈长度逆向设计

胡旭东¹^,², 宋炎锋¹^,², 汝欣¹^,²(), 彭来湖¹^,²

1.浙江理工大学机械与自动控制学院, 浙江杭州 310018
2.浙江理工大学浙江省现代纺织装备技术重点实验室, 浙江杭州 310018

收稿日期:2020-07-22 修回日期:2020-12-09 出版日期:2021-04-15 发布日期:2021-04-20
通讯作者: 汝欣
作者简介:胡旭东(1959—),男,教授,博士。主要研究方向为纺织装备自动化。
基金资助:
国家自然科学基金联合基金项目(U1609205);浙江省公益技术研究计划项目(LGG21E050024);浙江理工大学科研启动基金项目(18022224-Y)

Modeling and loop length reverse design for reducing diameter tubular weft knitted fabrics

HU Xudong¹^,², SONG Yanfeng¹^,², RU Xin¹^,²(), PENG Laihu¹^,²

1. Faculty of Mechanical Engineering & Automation, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
2. Key Laboratory of Modern Textile Machinery & Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China

Received:2020-07-22 Revised:2020-12-09 Online:2021-04-15 Published:2021-04-20
Contact: RU Xin

摘要/Abstract

摘要：

为解决针织物成形存在工艺设计目标与成形织物差异大的问题,提出一种从目标织物出发的织物线圈长度设计方法。根据圆形纬编针织机和纬编针织物的特性,将织物在周向和轴向划分为单元,提出基于Pierce模型改进的梯形线圈模型,并对大小头筒状纬编针织物建模。在此基础上得到各线圈长度与目标织物参数间关系,实现从目标织物出发的织物线圈长度计算,根据此控制线圈长度实现大小头筒状织物的设计。实验结果表明,大小头筒状纬编针织物中线圈长度的变化,理论与实际结果基本一致。根据提出的基于梯形线圈模型的建模方法,可依据大小头筒状纬编针织物参数得到任意线圈长度,实现线圈长度逆向设计。

关键词: 大小头筒状纬编针织物, 几何建模, 梯形线圈模型, 线性划分, 线圈长度

Abstract:

In order to address the big difference between the process design goal and the formed fabric, a design method of loop length based on the target fabric was proposed. According to the characteristics of circular weft knitting machine and weft knitted fabrics, the fabrics were divided into units in the circumferential and axial directions, an improved trapezoidal loop model based on Peirce model was proposed, and the diameter reducing tubular weft knitted fabrics were modelled. On this basis, the relationship between the length of each loop and the parameters of the target fabric was studied, and the design of the fabric loop length carried out based on the target fabric. The experimental results show that the theoretical and actual results are basically the same for the change of loop length in the reducing diameter tubular weft knitted fabrics. According to the proposed modeling method based on trapezoidal loop model, it is possible to get loop length from parameters of reducing diameter tubular weft knitted fabrics, and this research exercise demonstrated loop length reverse design process.

Key words: reducing diameter tubular weft knitted fabric, geometric modeling, trapezoidal loop model, linear division, loop length

中图分类号:

TS186.2

胡旭东, 宋炎锋, 汝欣, 彭来湖. 大小头筒状纬编针织物建模及其线圈长度逆向设计[J]. 纺织学报, 2021, 42(04): 80-84.

HU Xudong, SONG Yanfeng, RU Xin, PENG Laihu. Modeling and loop length reverse design for reducing diameter tubular weft knitted fabrics[J]. Journal of Textile Research, 2021, 42(04): 80-84.

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线圈序号	线圈长度/mm		误差/%
线圈序号	理论长度	实际长度	误差/%
2^#	2.645	2.690	1.7
10^#	2.717	2.748	1.1
18^#	2.792	2.796	0.1
26^#	2.867	2.830	1.3
34^#	2.944	2.874	2.3
42^#	3.023	2.998	0.8
50^#	3.103	3.040	2.0
58^#	3.184	3.196	0.4
66^#	3.264	3.224	1.2

大小头筒状纬编针织物建模及其线圈长度逆向设计

Modeling and loop length reverse design for reducing diameter tubular weft knitted fabrics

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