The method of processing yarn and threads
(57) Abstract:The method can be used to process yarn or yarns used in the production of knitted fabrics, knitted products and for the manufacture of textile materials. To reduce breakage by improving the adhesion and reduce the frictional characteristics of the yarn and threads on coiled with the manufacture of yarn or thread before entering the conical tank is applied technological preparation in the form of paraffin in the liquid phase. Then in a cone-shaped containers provide uniform distribution of the drug on the surface of the yarn or thread. The magnitude of the applied drug to the yarn or thread is 0.2-0.5 g of 104m 1 C.p. f-crystals, 5 Il., table 1. The invention relates to textile and knitwear industries, light industry and can be used for processing yarn or yarns used in the production of knitted fabrics, knitted goods, and also for manufacturing of textile materials.There is a method of waxing is produced yarn, the essence of which is to ensure that the finished thread or yarn, leaving a spinning chamber, passes through the end surface of the cylindrical block of paraffin or vaseegara wax over the entire surface of the thread. Sizing the drug is applied to one side of the thread, namely, that which is in direct contact with the surface of the paraffin block, which increases the geometry of nerovnosti of the thread structure, a shift to single protruding fibers of the threads in the contact zone.The closest technical solution is how to handle the sewing thread in a cone-shaped rotating vessel by contact of the thread with beads of thermoplastic polymeric sizing of drugs moving in a complex pattern in the vessel. Balls due to their plasticity can easily transfer some of their fine weight machined threads (EN 2010054 C1, 30.03.94).The disadvantage of the prototype is that technological preparation is applied to the surface of the filament in the amorphous state at room temperature, which does not provide strong coupling of the applied drug to the surface of the thread. By further use of threads in weaving and knitting industries particles caused matter to come easily from the surface during movement of the thread on technological transitions. Balls made of thermoplastic sizing drugs, including side surface of the filament, easily lose their original geometry, plastifitsirujushchih and stick together, forming a solid mass.A common shortcoming of existing methods of treatment of the yarn or thread is that technological drug is applied to the yarn or thread by mechanical means, either by the friction of the threads on the end surface of the paraffin block, or on the surface of the beads of thermoplastic polymeric sizing agents. The interaction process of the drug in the amorphous state does not allow to obtain high adhesion with the surface of the yarn or thread. Paraffin block and pellets of thermoplastic sizing drugs, giving a portion of their fine weight yarn or yarn, very quickly spent, and the manufacture of a new bar or balls - this is a rather laborious process.An object of the invention is to reduce breakage by improving the adhesion and reduce the frictional characteristics of the yarn and threads.The invention consists in that in the method of processing yarn or thread, consisting in their wrap with packing, applying them to the process of preparation, uniform distribution on the surface of the yarn or yarns inside the cone which are before entering yarn in cone-shaped container. The magnitude of the applied drug to the yarn is 0.2-0.5 g of 104m yarn or thread.The technical problem is achieved by a uniform distribution and a secure grip fine particles technological product with a lateral surface of the yarn or thread, the alignment of the yarn or thread, the stabilization of its geometrical parameters, laying and fixing single protruding fibers in the direction of twist of the yarn, reduce friction yarn or thread by passing on further technological transitions.In Fig. 1 presents a schematic diagram of the experimental setup for carrying out the proposed method, Fig. 2 shows a graph of hairiness and the mass of yarn on the number of applied technological preparation; Fig. 3, 4 and 5 show photographs of the yarn respectively: source, processed industrial way, processed by the developed technology and the increase of 100 times, b) increased 500 times.An example of a specific implementation of the method
As object of research the used cotton knitted yarn from the current range of JSC "Kineshma-textile" linear density 18,41 Tex with coefficients is useful hydrocarbon, C18-C35) used for waxing is produced yarn at JSC "Kineshma-textiles and other textile enterprises.The method is tested on the experimental setup in the laboratory of the Department of Technology and the use of chemicals in clothing production" Ivanovo state textile Academy, fully simulating the process of waxing is produced yarn on a spinning machine.Schematic diagram of the setup is shown in Fig. 1. Yarn 1 leaves the spool 2 through the thread guide 3, the guide roller 4, enters the hole of the transition cap 5, which is located on the side surface of the crankcase 6, filled with paraffin in the liquid phase. On top of the crankcase is closed by a cap 7. For translation of paraffin in the liquid phase respectively mounted on special ceramic stand, inside of which is laid spiral heating element 8. Voltage 220 B from the AC power source through the transformer 9 is supplied to the spiral heating element. The output of the secondary winding of the transformer has a toggle switch 10 for switching voltage 9 V or 12 Century For rapid heating and technological transfer of the drug into the liquid phase switch set in the P mode, sootvetsvovat in mode P, corresponding to the 9th CenturyParaffin transferred into the liquid phase, channel 11 transition neckline comes to a slit 12 which is in contact with the moving yarn. Stabilization of the physical state of paraffin in transition the neck is provided by thermal insulating cushion 13, within which is the heating element. The voltage on the inner wall of the transition neck is supported by the voltage regulator RH-2 14.Next, the yarn is coated with a technological product comes in a cone-shaped rotating tank 15 3/4 volume filled with unyielding plastic balls. Balls moving in a complex pattern in the tank, put on the perimeter of the yarn physico-mechanical impact: evenly distribute the wax along the surface of the yarn, single stack protruding fibers in the direction of twist of the yarn and put them in this position due to the adhesion of the drug. Then, the yarn passes through a guide roller 4 and is wound on the output package 16, the rotating due to friction on the surface winding drum 17.Dosage of paraffin at the exit to the place of adhesion yarn is regulated by the valve 18 with calibrated pointer regards Raji the number printed on it technological preparation, with increasing doses of the applied technology of the drug on the surface of the yarn hairiness decreases. The intensity reduction of hairiness characteristic of the initial period, then the process slows down and stabilizes after point a (curve 1). Further increasing the amount of wax applied to the surface of the yarn, is impractical because it leads to an increase in weight yarn (line 2), material consumption, deterioration of the thread in the movement of her technological nodes knitting machines. Therefore, the dose deposition process of the drug is 0.2 - 0.5 g of 104mThe results of studies of the yarn treated in different ways, for technological and qualitative indicators shown in the table.The table clearly shows that the developed technology waxing is produced yarn or thread has almost no influence on the breaking load of the yarn or thread, the error of measurement is within error of the experience. But at the same time significantly improves the surface quality of the yarn, which is achieved by aligning the yarn length, the elimination of distinct knots, reduce hairiness almost 20% compared to industrial way.Note:
1. Analysis of the hairiness of the yarn was carried out in accordance with the recommendations set forth in article Ryndin Century, and other yarn Hairiness and methods of its evaluation. The magazine "Textile industry", 1990, No. 5, S. 69-71.2. The value of the coefficient of tangential resistance was determined by the method of Taleporos centuries (Kukin, N. and other Textile materials. Textbook for high schools. 2nd ed. M: Legprombytizdat, 1989, S. 352. 1. The method of processing yarn and threads, which consists in their wrap with packing, applying them to the process of preparation, uniform distribution on the surface of the yarn or thread inside the cone e is giving the drug is carried out before the arrival of yarn or thread in a cone-shaped container.2. The method according to p. 1, characterized in that the magnitude of the applied drug to the yarn or thread is 0.2 - 0.5 g of 104m
FIELD: textile industry, in particular, non-circular weaving equipment, for example, weaving units.
SUBSTANCE: apparatus has shaft disposed between columns and adapted for carrying of rotary lever with rotating pressure roll, and spiral spring. Shaft is immovably fixed between flat columns attached by means of bolt-type protrusions to vertically arranged base. Spiral spring is mounted on shaft and spring ends are fixed on rotary lever and on one of columns. Shaft is made stepped and is equipped with basic end portions terminating in threaded parts. Flat columns have rectangular portions continued with bolt-type protrusions. Column arranged at the side of spring end has cylindrical opening for accommodation of rectilinear end of spring. Cylindrical recess provided in rotary lever hub aperture on its internal surface at the side of arrangement of spring is adapted for accommodation of rectilinear end of spring.
EFFECT: improved operating characteristics and operating conditions.
6 cl, 7 dwg
FIELD: textile industry.
SUBSTANCE: apparatus has yarn checking probe connected to pawl and mounted on bracket pin for periodic contacting with yarn during contacting of probe through pawl with cam freely put on feeding cylinder, controlling lever connected to pawl, and column freely mounted on feeding cylinder. Torsion spring is located within cylindrical bore of column, one end of said spring being fixed within column and other end being fixed within cam. Inner diameter of torsion spring in its free state is smaller than diameter of feeding cylinder for rotating of column and cam in conjunction with feeding cylinder. Cam for controlling of yarn rupture probe is equipped with protrusion which abuts against pawl upon rupture of yarn, said cam rotating relative to column. Axial movement of column, cam and torsion spring over feeding cylinder is restricted by stop rings.
EFFECT: simplified construction of apparatus due to absence therein of parts having complicated profiled slots.
FIELD: textiles; paper.
SUBSTANCE: device is meant for protection and cleaning of caterpillar combs of the drafting element of textile machine. The device contains rotatable cylindrical brush, which position in relation with the drafting device changes as a result of winding of textile material around the caterpillar. The coiled material is removed with the cylindrical brush that causes increase of its visible diameter and causes the turn of the bearing of the cylindrical brush movable support or a lever. The cylindrical brush is situated on the way of withdrawal preferably as close as possible to the drafting cylinders. The cylindrical brush position may change in relation to the drafting device consequently from the position of comb cleaning till the withdrawal position. The sensor for determination of the cylindrical brush position in relation to the drafting device stops the machine in case of withdrawal of the cylindrical brush as a result of winding of textile material around the caterpillar. The axis of rotation of the cylindrical brush is set on the lever or on the movable base rotating around their axis that is immovable in relation to the machine body and is rigidly fixed with the machine body.
EFFECT: detection of excessive pollution of brush, prevention from mechanic damage as a result of winding of textile material around the caterpillar and increase of the intervals between brush cleanings and, thus increase of machine capacity and reduction of labor cost.
21 cl, 10 dwg
FIELD: textile, paper.
SUBSTANCE: method for determining textile chafe mark properties as per computer picture can be used during analysis of textile fibre structure in order to investigate its properties by means of laboratory tests. According to the method there determined is chafe mark characteristic showing total length of hairs; fibre is wound on the board of contrast colour with constant pitch and tension; the prepared fibre specimen is laid on the working surface of scanner so that longitudinal fibre axis is perpendicular to light-sensitive element of scanner; there obtained is fibre section picture by scanning in the specified direction and digital values corresponding to its brightness. Then matrix of pixel brightness values is built, then those values are summed as per columns of the matrix, fibre stem section is pointed out by applying the filtration in upper threshold brightness level obtained by building a brightness histogram. In the same way there pointed out is fibre hair section in lower threshold brightness level, the picture is cleaned from the sections characterising the occasional non-uniformity of scanning surface by applying object search operations and calculation of their signs, and there built is central line of fibre picture and a curve in sections on both sides from fibre stem, which corresponds to the number of light pixels in each column of matrix and represents the junction of relative density of hairs located throughout the fibre length without taking into account a fibre stem section. Left part of curve is mirrored to the right one, a point is marked in curves by calculating the derivative of those curves, and limits of zones of dense, informative and occasional hairs are determined with cross points of a tangent to a curve built through the above calculated point and with drawn horizontal lines correspondingly to maximum and minimum number of pixels. Number of hairs in the section is determined by identification of a dressing point and by investigating the area around it; total length of hairs is calculated by adding the number of pixels in each column minus pixels of fibre stem section. Chafe mark radius is measured by averaging pixel brightness values of fibre hair sections.
EFFECT: enlarging functional capabilities, decreasing errors and increasing objectivity of determining chafe mark properties.