手动横机同针床挑孔组织的常用编织方法

叙述了手动同针床横机挑孔组织的主要特点,即存在着与花型密切相关的不同的工艺因素,主要包括:线圈转移的方向、次数、个数、针距数,线圈重叠的方式与放孔眼的针数等,同时对应地给出了其主要编织操作方法,并以此为基础,总结了手动横机同针床挑孔组织的基本结构单元,以及各个基本结构单元在同一编织横列上的组合方式,尤其强调了线圈的重叠方式及与之对应的具体操作方法,最后说明了不同横列之间的组合方式,以及整个衣片的编织。     

羊毛衫纬平针边口防脱散的编织方法

在分析常规羊毛衫纬平针组织顺、逆编织方向脱散原因的基础上,给出其顺编织方向上的两种双边、单边防脱散横列线圈结构,并讨论防脱散横列毛起口与纱起口的编织方法和步骤。最后给出边口防脱散横列编织过程中的工艺控制要点。     

横机套收针编织工艺探讨

横机套收针编织方法是一种在同一横列可以实现一次收多针的收针方法。探讨常见的3种套收针编织方法,并总结实现套收针编织的工艺要点。详述套收针线圈长度对编织过程和成品质量的影响,并以此为依据提出几种增加套收针线圈长度的方法。该编织工艺表明,套收针克服了以往收针方法的缺点,尤其适合羊毛衫领窝中部、肩部和领圈部位等处的收针。     

双层编织时放针处布边的结构

沿着编织区的边缘放针能达到外衣产品衣片所要求的式样,同时实现原料的节约。按衬垫方式根据针织物横列编织过程的不同在各针床上能够获得不同的衣片布边,例如袖子。在放针处沿着布边,当用罗纹组织编织衣片时配置有不封闭线圈,并脱圈在下一罗纹横列线圈上。     

合纤双梳经编织物线圈几何学和工艺控制

在经编针织物中,每个线圈均由一称为延展线的线段与前一横列联结,并用另一延展线与后一横列联结。除编链组织中这种延展线始终只联结同一纵行的线圈以外,在别的经编组织中,这种延展线还在线圈纵行之     

Logica系统电脑横机同针床挑孔组织的常用编织方法

给出了Logica系统电脑横机同针床横机挑孔组织的主要特点与两种具体的编织方法,包括二次编织成型与插行或制作模块.在二次编织成型中,探讨了它的基本编织程序,包括将同一横列线圈分两次转移的基本规则、针床横移不同方向与不同横移针距个数的先后次序安排、与将线圈转移到原来针床上的程序等;在插行或制作模块中,探讨了不同线圈重叠方式的调节方法.     

线圈转移对导电弹性针织柔性传感器的电-力学性能影响

为了理论指导弹性纬平针织物柔性传感器的设计,本文基于针织物的线圈结构对导电镀银纱弹性针织物的电-机械性能建立了电阻六角模型,并研究了电阻和导电针织物张力的关系,通过求解导电针织物电路方程组得到其等效电阻。研究结果表明：导电针织物电路是综合串联和并联的复杂电路网;沿纵行方向,它是一个并联电路;沿横列方向,它是一个串联电路。为了简化计算过程,只需要计算m横列╳1纵列线圈的等效电阻。从理论分析和实验研究可得,线圈纱段转移引起了导电弹性针织柔性传感器的电阻变化,并且是引起传感器灵敏度的关键因素;针织物的电阻随应变的增加而线性增加。此外,接触电阻、织物结构和纱线伸长也影响针织物传感器的性能。     

Stoll公司:编织绞花组织的新技术

普通针织技术在编织绞花组织时,是将相对应的每组线圈根据绞花宽度交叉移圈,放置到相反的位置上进行编织,由于不断地将线圈移圈来编织绞花组织,则将在编织的横列上产生很大的张力,为了降低这个张力,需要在一定宽度上对编织的整片绞花织物进行脱圈处理,因而增加了线圈的长度,甚至在某些情况下,使线圈长度增加到原来的2倍,从而使绞花组织部分与编织设备的隔距不再相对应.     

机械变化对纬编针织物织疵形成的影响(二)

本章主要分析喂纱系统、输入张力、线圈密度、织针排列、机器隔距、停机痕、漏针和破洞的造成原因。折痕圆形针织机由于机械磨损的影响可能造成三种类型的织物折痕。即边折痕,中间折痕和散折痕。任何形式的折痕都可能是由喂纱系统造成的。尤其在导纱器喂入较长线圈横列长度时折痕更易出现。因此,在纬编编织过程中,随着线圈横列长度增加,织物的宽度与长度,织物的收缩情况,勾丝起球、透气性     

染整专利摘登

专利名称：探边器专利申请号：CN200720096090.4公开号：CN201037205申请日：2007.05.24公开日：2008.03.19申请人：天津三环纺织印染公司一种探边器,它是由变压器的输出端的线圈有A、B两端和中间抽头O,输出端的线圈A端、B端分别通过依次连接二极管、单向可控硅并通过电阻连接控制电机的定子线圈另一端和转子线圈;本探边器改变原有设备电路复杂,     

Automatic detection of a damaged router bit during cutting

This paper presents an on-line method for detecting a damaged cutting edge of a router bit by using cutting sound. The method is based on an analysis of the frequencies of the cutting sound generated by normal and damaged cutting edges. When two cutting edges of a router bit were normal, the frequency spectrum of the cutting sound had only a peak level at the tooth passage frequency. However, when one of two cutting edges was damaged, the frequency spectrum of the cutting sound showed two peak levels at a rotation frequency as well as a tooth passage frequency owing to the uneven cutting of two cutting edges. According to the difference in damaged areas and positions in one of two cutting edges, the ratio of the sound pressure level for rotation frequency to that of tooth passage frequency was used to discuss the possibility to detect the damaged cutting edge in the cutting process.     

An investigation of seam strength and elongation of knitted-neck edges on complete garments by binding-off processes

Binding off is utilized to finish a column of stitches on knitted fabric edges. A binding-off process can be performed by manual or mechanical methods involving hand knitting, overlocking, and linking processes. Binding off also can be achieved on automated flat-knitting machines by a combination of loop transfer and racking techniques. A binding-off process on the computerized knitting machinery provides several potential benefits such as minimizing labor intensive sewing or linking processes, production of constant quality products, and other benefits. However, in order to obtain the bound-off knit edges on computerized knitting machines, it is significant to not only provide appropriate values of loop lengths and machine tensions but also to choose suitable types of binding-off methods. This research introduces three different types of binding-off processes on neck edges conducted on automated complete garment knitting machines and investigates the seam strength and elongation of the neck edges by the three binding-off methods.     

二次滤波法在织物疵点边缘检测上的应用

针对织物图像斑点噪声的特点，采用了一种新的图像边缘检测方法。该方法以锐化处理为基础，经二次滤波完成图穰预处理，克服了以往一次滤波方法的缺点，在抑制噪声的同时，增强了图像的边缘信息。通过对织物疵点的检测表明，该方法可以取得较好的边缘检测结果，是一种实用有效的方法。     

应用改进Canny法检测工业零件含噪图像边缘

针对工业零件含噪图像边缘检测,根据Canny算法原理,提出了一些改进策略,形成了一种矩形透镜最大梯度模边缘检测算法。采用中值滤波完成图像平滑,有效抑制了图像噪声;采用5×5邻域一阶偏导有限差分计算图像的梯度幅值,提高了边缘定位的精度;采用最大类间方差法(OTSU)求解了最优区域分割阈值,实现了边缘的自动检测。以磁环和极片工业零件图像边缘检测为例进行了实验,结果表明,该算法具有较好的去噪和边缘检测效果。     

Performance of helical edge milling cutters in planing wood

A new design of a milling cutter with solid helical edge has been developed for improving the performance of cutting wood. Development of the new helical edge milling cutter with its geometries for planing wood has been followed by some research progresses. In this work, a conventional edge milling cutter and helical edge milling cutters were tested in planing spruce wood (Picea abies). The purpose of the research work was to investigate chip flow, power consumption, noise emissions, edge wear, and surface roughness characteristics of the helical edge milling cutters in planing spruce wood. Experimental results showed that the helical edges compared to the conventional edge milling cutter provide better chip flows with nearly axial direction and low flight velocity. Though the extreme helical edges up to 75° inclination angle generate comparable or slightly larger cutting power than the conventional edge, they considerably generate lower sound pressure level of up to 5 dB(A). The helical edge milling cutters are better in wear resistance, suffer less edge fractures, and produce better surface quality of planed wood than the conventional edge milling cutter.     

Einfluß der Planlaufabweichung von Kreissägeblattschneiden auf den Zerspanvorgang

Cutting experiments with melamine-coated particleboards show to what extent axial run-out of the edges of carbide tipped circular saw-blades affects tool wear, cutting forces and the roughness of the workpiece edge. For protruding edges the effect on wear was greater than for receding ones. The same was true for passive forces. Saw-blades with minor axial run-out of the edges gave better quality work pice edges (less roughness of the cut surface) and had consid-erably longer service periods than blades with greater axial run-out. A new sharpening method and a suitable device were developed for sharpening sawblade edges, independently of axial run-out of the blade body. By this method circular sawblades can be produced with extremely low axial run-out of the blade edges.     

基于Prewitt算子与形态学的纸病图像检测方法

针对Prewitt算子在检测中存在的边缘不连续性的问题,提出一种基于Prewitt算子和数学形态学的纸病图像边缘检测方法。首先利用Prewitt算子对纸病图像进行处理,然后将处理后的图像进行形态学的闭运算。实验表明,该方法结合了两种检测方法的优点,有效地提高了边缘检测的准确性,得到了比较理想的纸病边缘检测效果。     

Diamant als Schneidstoff für Holz und Holzwerkstoffe

Since 1979 a company is producing machine tools for wood working which are equipped with diamond edges. These edges are industrially made with polycristalline diamonds which are formed to suitable raw parts using modern high-pressure sinter-technology. From these raw parts cutters with special edge geometry are formed considering the special hardness of the material. Themanufacturer describes the development of the edge material and the tools. The economy of practical application is illustrated by cost comparisons.     

The effect of knit structures with tuck stitches on fabric properties and pilling resistance

The patterns of knit fabrics are designed by loops, tuck stitches, and float stitches and their combinations. The tuck stitch has important influences on fabric properties. It increases the fabric’s weight, thickness, and width and makes the fabric more porous than other fabrics. In this study, to determine the effects of knit structures which are made from the same cotton yarn with tuck stitches on fabric properties and pilling resistance, circular knit fabrics with different locations and number of tuck stitches were produced and dyed under the same conditions. In the evaluation process of the results, graphs were drawn and variance analyses were performed. At the end of the study, important findings were determined. The number and location of the tuck stitches and stitch length are effective factors on the structural, physical properties and the pilling resistance of knit fabrics. The fabrics with tuck stitches have much higher porosity, weight, and thickness compared to single jersey fabric. The dyeing process increases fabric weight. Single jersey has the lowest pilling resistance in comparison to fabrics having tuck stitches. The fabrics having more pores and larger pores show higher resistance to pilling. Dyeing and finishing processes decreased the pilling resistance of fabrics.