摘要:
The present invention relates to a fiber production system (1) and production method which enables heat treatment applied during fiber production to be performed as applying laser on the fiber. The objective of the present invention is to provide a fiber production system (1) and production method which enables to perform momentary heat treatment on the filament (F) via laser beam (L) and which eliminates defected points in the filament structure by heating fast and drawing in fiber production.
摘要:
Provided is a manufacturing method for a bundle product that includes an inspecting step of inspecting two or more threads continuously running in parallel in the longitudinal direction, a collecting step of collecting the threads, and a cutting step of cutting, after completion of the collecting, all the collected threads at a predetermined position, to obtain a bundle product having plural threads converged into a bundle. In the manufacturing method, an amount of collection in the collecting step is adjusted on the basis of inspection results obtained in the inspecting step so that at least one managed quantity for plural threads selected from a group including a total number, a total weight, a representative weight, a total outside diameter value, a representative outside diameter value, a total surface area, and a representative surface area of the plural threads constituting the bundle product exceeds a predetermined value.
摘要:
A method for determining the effects of a fancy yarn by measuring the yarn diameter. The yarn sections between the effect areas are referred to as webs. The effect area is determined in that the beginning of the effect is defined by meeting a first criterion and the end of the effect is defined by meeting a second criterion. A specifiable number of the largest diameters is determined between the beginning and end of the effect, an average is formed from the diameters determined, which is specified as the diameter of the effect, and the effect length is determined from the beginning and end of the effect.
摘要:
To detect yarn defects such as protruding filaments, broken filaments, ringers, fuzzballs, stripbacks and the like, a yarn sheet 9 traveling in a plane is scanned by light beams from at least two light barriers 10, 11. When a yarn defect interrupts the light beam of a light barrier, a detector pulse is triggered, appropriately amplified and transformed and sent to evaluating means 22. Such a detector pulse is triggered each time a yarn defect passes through a light barrier, so that the travel time or time difference T1,2 between the trip times of a yarn defect through the two light barriers can be determined by the evaluating means. Since the yarn sheet 9 passes through the light barriers at a constant velocity v, the travel times for the various individual ends from one light barrier to the next will differ and therefore can be used to determine the distance S normal to the yarn traveling direction of the yarn defect to the point of intersection of the light beams of the two light barriers. When one of the light beams is oriented perpendicularly to the yarn traveling direction, the equation SnullT1,2*v/tan cc applies. The light barriers 10, 11, which each comprise a light source and a detector, are arranged relative to each other in a V-shape and their light beams form the angle null.
摘要翻译:为了检测诸如突出长丝,断丝,丝束,绒毛球,剥离物等的纱线缺陷,从至少两个光栅10,11的光束扫描在平面中行进的纱线片9。当纱线缺陷中断 光栅的光束,检测器脉冲被触发,适当地放大并变换并发送到评估装置22.每当纱疵通过光屏障时触发这种检测器脉冲,使得行进时间或时间差T1 ,通过两个光栅的纱线缺陷的跳闸时间之间的距离2可以由评估装置确定。 由于纱线片9以恒定的速度v穿过光栅,因此各个端部从一个光栅到下一个光栅的行进时间将不同,因此可用于确定与纱线行进方向垂直的距离S 纱线缺陷到两个光栅的光束交点。 当其中一个光束垂直于纱线行进方向取向时,应用等式S = T1,2 * v / tan cc。 每个包括光源和检测器的光栅10,11相对于彼此以V形布置,并且它们的光束形成角度α。
摘要:
The invention relates to a measuring device for thread-like test samples (3), comprising a measuring slit (2) exhibiting measuring areas (6, 7) for measuring characteristics of a test sample which moves longitudinally, said measuring areas being associated to a measuring device. A coating (8) made of an abrasion-resistant material is applied over the whole measuring slit and its measuring areas (6, 7) in order to define more freely the dimensions of said measuring slit and especially to obtain a narrower measuring slit.
摘要:
Process for monitoring a moving yarn sheet by means of a light beam, photodetectors and an electronic analyzer, whereby the yarn sheet is guided via thread guide rods before and after the monitoring site and the shadowing of the light beam caused by an increase in thread thickness is directed perpendicularly to the direction of travel of the yarn sheet for detection by photodetectors, and evaluated and recorded by the electronic analyzer, characterized in that the intensity of a single light beam is detected by at least two photodetectors arranged in series in the direction of travel of the yarn sheet and in that the evaluation by the electronic analyzer is such that a recording only takes place when the shadowing is detected by one or more of said photodetectors following in the direction of travel of the yarn sheet with a time delay corresponding to the running speed of the yarn sheet is disclosed. It is preferred to employ at least four photodetectors of which at least two are situated in series in the direction of travel of the yarn sheet and at least two are arranged one above the other such that at least one photodetector is positioned below the yarn sheet plane and at least one photodetector is positioned above the yarn sheet plane.
摘要:
A detector for indicating the presence of partially broken, frizzed or knotted sections of threadlines, such as may occur during fiber forming operations, includes a housing, a lamp for directing light onto a rapidly moving threadline, a photoelectric cell for receiving such light and generating an electrical signal in response to it, guide means for snubbing the moving threadline and maintaining it in substantially constant positional relationship with the light, and an electronic signal amplification circuit in the housing, utilizing controlled capacitive buildup and decay of electronic signals responsive to those from the photoelectric cell, with the controlled buildup and decay being such that breaking of thread filaments, frizzing or knotting occuring over a length of from 2 to 50 times the width of the threadline actuates a counter, marker, cutter, visual or audio signal or other indicator or responsive device when the broken filaments are of a thickness from 1 to 30 percent of the threadline. Other aspects of the invention include the mechanical structure of the detector, electronic circuitry and use of the device.