OWL程序设计与多梳栉经编织物花型计算机辅助设计

为了适应多梳栉拉舌尔经编机向现代高速、工艺先进和计算机控制的方向发展,满足市场对经编产品小批量、多品种的要求,国内外在多梳栉经编织物计算机辅助设计方面都做了大量的工作,而国内的设计研究尚显不足.从多梳栉经编织物计算机辅助花型设计的特殊性出发,选用了一种面向对象程序设计——OWL程序设计,将二者有机地结合起来所做的研究工作.     

Effect of Run - in Ratios on the Mechanical Properties of Two - Guide Bars Warp - Knitted Fabrics

Warp knitting technology gets rapid development at present and becomes one of the most important parts of the textiles.But it is less known how the parameters of warp knitting technology affect the mechanical properties of warp-knitted fabrics.This paper presents discuss a research on the relationships between run-in ratio and mechanical properties of the two-bar warp-knittedfabrics through the measurement and analysis of the mechanical properties of various samples with different run-in ratios.The optimal run一in ratios for the reasonable mechanical properties are obtained from above dis-     

经编绒类产品的开发和应用

介绍了在单针床经编机和双针床经编机上的不同绒类织物，及在实际中的应用，并且给出了部分成熟工艺。     

Study on How to Design Knitted Fabric Pattern with Mathematical Theory

To improve design capabilities for the knitted fabric pattern, a preliminary study is carried out for the design method. Based on mathematical theory, pattern could be created automatically by computer with inputting different parameters for mathematical functions. The knitted fabric simulation is realized by Ml CAD pattern preparation system of STOLL Company. In the pattern,different color unit is replaced by obverse stitch with different color, or by obverse stitch and reverse stitch with the same color separately, after that the effects of knitted fabrics could be simulated. Designing with this method, it would not only help to acquire a great of diversity patterns,but also improve design efficiency and save cost.     

编织重经织物时经纱张力分析

本文是研究在单针床经编机上编织重经织物。为了减少编织过程的张力、作者设计了一个测量系统。借助于信号分析技术研究了纱线的张力波动规律。结果表明,在编织过程中纱线张力呈周期性变化,在一个周期中至少有三个峰值,编织过程中成圈机件位置变化对经纱张力有很大影响。通过调整机器,成功地编织出一些重经织物。     

连续玄武岩纤维衬垫织物复合材料及其拉伸性能

在电脑横机上分别编织了连续玄武岩纤维变化纬平针和不同垫纱比的衬垫织物4种预制件.通过真空辅助树脂转移模塑成型(VARTM)技术制成复合材料,测试其纵、横向拉伸性能.结果表明衬垫纱的浮线可以明显提高织物的横向拉伸性能,为玄武岩纤维及纬编增强复合材料的生产设计和应用提供依据.     

A Synchronous Electronic Let-off and Take-up Device

A synchronous electronic let-off and take-up device isdesigned.The device is controlled by a single-chipcomputer and driven by two step motors.It has somefunctions such as keeping the warp tension constant dur-ing the weaving instant,releasing the warp tension whenloom is stopping and straining warp when loom is start-ing.By means of these functions,the stop mark of thewoven fabrics is eliminated.In addition,this device canapply to weaving variant-pick-density fabrics.     

计算机测配色技术在纺织品图案设计中的应用研究

在分析纺织品图案与色彩构成的基础上,通过研究色彩的空间混合原理,提出了利用计算机编程技术处理纺织品图案设计中织物经纬纱线的配色问题.利用计算机测色技术建立纱线颜色库,再利用配色程序计算出经纬色纱交织后所形成的织物色彩,从而模拟纱线混色后织物的效果,达到快速配色的目的,这样就极大地简化了色织物中经纬纱线的配色问题,提高了纺织产品开发的效率和劳动生产率,能更好更快地满足客户和市场需要.     

Tensile Property of Bi-axial Warp Knitted Structure

The tensile property of bi-axial warp knitted fabrics is tested and compared with that of the plain weave fabric. The results show that there are obvious differences between the tensile property of a bi-axial warp knitted fabric and that of a plain weave fabric. The former can give fuller play to the property of a high modulus yarn than the latter. The tensile strength of a bi-axial warp knitted fabric is linear with the number of yarns in the direction of force.     

织物的类型及其组织元

本文对历史上出现过的现在存在的各类织物提出了新的分类法、织物可分成编织物和机织的两大类,两类之中又可根据参与织造的纱线系统来分,然后再根据其交织原理区把编织物分成环编,纠编、绞编,烧编、斜编等若干种,把机织物分为针织和梭织两类,前者包括纬编和经编;后者则包括平经和绞经。文中还提出了组织元的概念,作为一类织物的基本构成单元,它较目前所用的原组织概念更为基础。     

织编物的组织结构

织编物是把机织与针织的原理相结合所生产出的一种带条纹的织物。为了深入研究织编物的特性、用以指导在设计这一类织编物时所遇到的种种问题,我们有必要对织编物的组织结构进行研究。本文就织编物的厚度与经纬纱的细度,经纬纱的密度与用纱量之间的关系,织编物的几种基本组织结构及其经纬密度的配置,以及经纬向的强力与伸长,纱线复盖度与透光及透气性的问题一一作了研究,虽然这一工作仅仅是开始,但它有助于对这类新型织物的生产研究工作,以供这方面工作的同志参考。     

迷彩颜色在计算机上精确显示的方法

迷彩颜色的正确性对于伪装来说是非常重要甚至是根本性的问题。伪装计算机辅助设计特别是迷彩CAD的应用，极大地提升了工程伪装设计的技术水平，但以往在计算机中对于颜色的表现（显示与打印）仅是示意性的。解决了在计算机上精确表现迷彩颜色的问题，明确了CIE1931 XYZ，CIE1976L*α*b,sRGB三种颜色空间的转换关系，具体地确定了实际可操作的处理方法。所研究的方法，适合一切需要在计算机上逼真表现颜色的应用。     

面向对象建模技术及其实现

面向对象技术已成为当今软件开发的一种主流方法,它已从软件编程、软件设计扩展到需求分析、建立系统模型的阶段。本文以“餐饮自动化系统”中的“顾客点菜子系统”为例,介绍运用面向对象技术建立系统模型的方法。     

THE EFFECT OF RUN-IN VALUE ON DIMENSIONAL AND PHYSICAL PROPERTIES OF RASCHEL WARP KNITTED FABRICS

After run-in analysis of Raschel warp knitting,the dry and wet relaxation treatments of twelvetwo-bar warp knitted fabrics having six different knitting tightnesses were made,and some physi-cal properties of these fabrics which had been finished were tested.On the basis of these experi-ments,the effect of run-in value on dimensional properties and the relationships between run-invalue and physical properties are discussed and analysed.     

Research on Tearing Property of Reinforced Plastic Film with Bi - axial Warp Knitted Fabric Skeleton

The specification of laid-in and warp yams,thedensity of fabric and the specification of groundyam are of great importance when the bi-axialwarp knitted fabric being knitted.In this paper,the tearing property of the reinforced plastic filmwith bi-axial warp knitted fabric skeleton istested and analyzed.The resuits show thatamong the three factors,the specification of laid-in and warp yam has the greatest influence onthe tearing strength of the reinforced plastic film,while the rest of them has secondary and lesseffect respectively,and there is exponential re-lation between the tearing strength of the rein-forced plastic film and the number of yams in thedirection of force.     

Effect of Knitting Process on Elastic Property of Polyethylene Terephthalate (PET)/Polybutylene Terephthalate (PBT) Warp Knitted Fabric

This study investigated the elastic elongation and elastic recovery of the elastic warp knitted fabric made of polyethylene terephthalate( PET) and polybutylene terephthalate( PBT)filament. The effect of knitting parameter on the elasticity of PBT /PET warp knitted fabric was analyzed. The increase of drawing density( from 16 to 26 courses per centimeter( CPC)) on machine resulted in the decrease of elongation at the weft direction. But,the elongation at the warp direction fluctuated as drawing density increasing. The yarn run-in speed influenced the elongation of PET /PBT warp knitted fabric as well. When the yarn run-in speed of GB1( front bar) was kept a constant,the increase of GB2( back bar) yarn run-in speed caused the gradual enhancement of the elastic elongation at the warp direction,but the different trends of the elastic elongation at the weft direction. When yarn run-in speed of GB2 was kept a constant,the increase of GB1 yarn run-in speed enlarged the elastic warp elongation from 104.16 to 124.97 mm,while the weft elongation decreased from 110.34 to 98.03 mm.Eventually yarn run-in speeds of GB1 and GB2 were retained at1 360 and 1 170 mm / rack respectively under 20 CPC drawing density. It could not only balance the two directions of elongation but also reach the highest elongation at both directions( 126. 32 and115.88 mm) under 100 N tension. These results provide a better understanding of characteristics of PET / PBT warp knitted fabric,and its elastic elongation and recovery behavior for development and effective applications.     

经编针织运动服装的织物性能研究

从人体穿着舒适性能考虑,织物的热湿舒适性越来越成为人们重视的服用性能.本文针对功能性的针织运动服的原料选用和织物组织结构,分析其导湿性.     

单针床氨纶弹力经编毛圈织物的探讨

单针床氨纶弹力经编毛圈织物的编织，至少要使用三把梳栉。机后两把流栉为地梳栉，机前一把梳栉为毛圈梳栉，并且氨纶弹性纱线应穿在后梳栉上。地组织必须采用针后移针与毛圈沉降片横移同向的经平组织，毛圈组织应采用编链组织。     

Characterization of Deformations of Multiaxial Warp Knitted Fabrics during Forming Process

The typical structure(with four inserting yarn systems) of multi-axial warp knitted fabrics shows unsatisfactory conformability according to hemisphere pressing experi-ments.The structure containing only two bias inserting yarn systems(TBMWK fabric),however,proves to possess good conformability.This paper characterized in detail the forming behavior of TBMWK fabric.It was found that the two bias inserting yarn systems tend to gather always along the weft direction,and the angles between them along this direction are basically linear to the perpendicular distances from the measured points to the longitudinal axis of the hemisphere.And the     

三圈高地毯簇绒机花型准备系统的开发

介绍了三圈高地毯簇绒机的花型准备系统，包括花型设计和花型转换两大部分．花型设计是基于计算图像处理技术实现对地毯花型的计算机辅助设计，得到符合条件的花型；花型转换是根据设计的工艺要求，把设计图转换为直接应用于现场控制地毯簇绒机的工艺图．