• <abbr id="ck0wi"><source id="ck0wi"></source></abbr>
    <li id="ck0wi"></li>
  • <li id="ck0wi"><dl id="ck0wi"></dl></li><button id="ck0wi"><input id="ck0wi"></input></button>
  • <abbr id="ck0wi"></abbr>
  • <li id="ck0wi"><dl id="ck0wi"></dl></li>
  • Home >

    Analysis Of Combing High Quality Production Method

    2013/7/10 8:03:00 30

    Textile IndustryCombed YarnTextile EnterpriseSpinning Enterprise

    This issue is for Huarun Liaocheng, Shandong. Spin Relevant production experience of limited company and Jiangsu Kai Gong machinery Limited by Share Ltd is introduced.


    Method 1


    Reasonable configuration parameters to reduce fiber damage caused by equipment


    Zhang Lingbin, Liaocheng Huarun Textile Co., Ltd.


    With high speed Comber It is inevitable for comber to damage fibers. According to many years of production practice, the author thinks that taking measures from the following aspects can effectively reduce the degree of fiber damage.


    First, increase the straightness of the sliver. from fibre The hook extension theory shows that the extension effect of the rear crooked hook increases with the increase of drafting multiple. Therefore, properly increasing the web tension of the doffer to the press roller helps to reduce the back crooked fibers in the cotton web and improve the fiber straightness of the sliver.


    Second, reasonable allocation of pre drawing drafting process. In order to fully eliminate the front crooked hook, the main draft should be controlled below 3.3 times, the rear area drafting is 1.75 times ~2 times, the total draft 5 times ~6 times, and the number of roots 5 ~6 roots. The larger the draft distance is, the larger the distance between the fiber shifting point and the front jaw can be reduced, and the preloading speed can be reduced appropriately, and the extension time of the front crooked hook can be prolonged.


    Third, reasonable allocation and rolling process. The shape of sliver hooks is mainly crooked crooked hooks. Therefore, the process should adopt more combined numbers as much as possible, increase the total drafting multiplier and improve the fiber straightening degree. At the same time, the initial pressure and the gradual increase of the pressure of the small coil should be reasonably set to avoid sticking.


    Fourth, reasonably choose the working angle, hardness and tooth density of the first row of needle teeth in Xilin. The working angle should not be too small, and grasp at 60 degrees or so, so as to facilitate the needles to pierce the plexus and to pre open the loosening. The hardness of the needle teeth should be above HV800, so as to reduce the broken needle and the crooked needle, avoid the damage to the fibers caused by the small cross section of the needle teeth and the small gap of the teeth. The tooth density should not be too large, and should be mastered in 25 teeth / centimeters to the left and right to reduce the damage to the fibers.


    Fifth, choose the cylinder speed reasonably. The carding speed of the cylinder at constant speed is decreasing during the whole carding process, that is, the first comb speed of the first row of needle teeth in Xilin is the largest, so the cylinder speed should not exceed 350 tweezers / min.


    Method two


    Optimizing mechanical mechanism to increase CV value of combing sliver


    Jiangsu Kay palace machinery Limited by Share Ltd Zhang Libin


    In actual production, many enterprises often encounter increasing combing efficiency by increasing the speed of comber, but the combing strip index is deteriorating. Especially in traditional combing machines, when the speed is increased to 400 times per minute, the evenness will deteriorate to varying degrees. We have optimized the main mechanism or parameters on the JSFA388A comber, and carried out the spinning test, analyzed the relationship between the transmission mechanism and the CV value of the combed stem, providing reference for the combing strip quality control and comber technology transformation.


    Through experiments, we found that the technical measures to improve the evenness of JSFA388A comber mainly include the following aspects.


    First, when spinning long staple cotton and fine staple cotton, the evenness of the cotton web is 1.75 and 1.25 respectively. Therefore, the production scale of cotton web should be based on the scale. raw cotton fabrics The length is adjusted near the better position. The principle is that the length of the main body of the fiber decreases and the direction of the scale is smaller.


    Second, after optimizing the design of the separation roller mechanism, the lap ratio of the cotton bushes increased by 6.77 percentage points. When the combing speed was 400 clamp times / minutes, the CV value of the combed sliver decreased from 3.87% to 3.32%. The separation roller movement law was more reasonable, and the motion speed and acceleration correspondingly decreased, and the running stability of the whole machine was also improved.


    Third, the combing machine adopts three upper five lower curve drafting mechanism, and the combing sliver can maintain a good level when the combing speed is less than 400 times / minute and the drawing ratio is small, but the adaptability to the high speed is poor. Three the upper and lower three pressure bar drafting mechanisms can more effectively control the fiber speed change points, improve the combing sliver, and are more suitable for the combing process of heavy weight, high speed, large draft and forward cotton.


    Fourth, improving the sliver conveying mechanism and adjusting the location of the guide bar nails reasonably will help to eliminate overlapping mechanical waves and improve the evenness.


    Method three


    Control temperature and humidity and reduce carding droppings reasonably


    Shandong Liaocheng Huarun Textile Co., Ltd. Liu Yunguang


    Faced with today's market crisis, Spinning enterprise The profit space has been seriously squeezed by many unfavorable factors. The cost of raw cotton has accounted for more than 70% of the total cost. Under the premise of ensuring the quality of the yarn, only the combed noil rate can be reduced scientifically and reasonably, so that the profits of the enterprises can be better improved.


    Different temperature and humidity have a great influence on cotton fiber processing. When the temperature and humidity are low, the actual water vapor content in the air is low, the air is dry, the fiber is fragile, the process is easy to break and damage, and it is easy to generate static electricity, and the number of flying flowers is increasing. Repeated tests showed that when the temperature and humidity were low, the percentage of combed cotton droppings increased by 1~1.5 percentage points. Similarly, the control of temperature and humidity can not be too high, because when the air is too wet, the effect of removing neps impurities is reduced.


    It is worth noting that the temperature and humidity regulation of combing process can not be one-sided pursuit of temperature and humidity indicators, not only for temperature and humidity indicators, but should be combined with the actual effect of production to master. In fact, when the temperature is high and the relative humidity is low, the moisture content is not necessarily low, and the temperature is not related to the moisture content. They represent the two independent parameters of the air. In the high temperature and high humidity season, the air is very humid, the raw material moisture regain is higher, and the appropriate temperature increase can reduce relative humidity. During the spinning process, the moisture regain of the semi-finished products should be controlled, and the combing process should be gradually lowered from the sliver to the combing process, so that the combing process is in a state of moisture release. This will not only help comb production, but also reduce the fluctuation of the noil rate and stabilize the yarn quality. When the amount of water vapor in the air is too high, the relative humidity can be significantly reduced by raising the temperature greatly. At this time, although the temperature and humidity data are still changing on the moisture content line such as I-D diagram, there is still a possibility that the production can not be produced normally, and may cause the bigger fluctuation of the noil rate of comber. Therefore, it is necessary to install a set of dehumidifier equipment in the high temperature and high humidity season and improve the dehumidification capacity of the combing room.

    • Related reading

    合理選擇梳理隔距大幅改善成紗質量

    Technology Extension
    |
    2013/7/10 7:38:00
    17

    Selecting Carding Components To Improve The Efficiency Of Carding Machine

    Technology Extension
    |
    2013/7/10 7:30:00
    28

    Textile And Garment Industry Uses The Ring Spinning Skillfully To Save Cost And Benefit.

    Technology Extension
    |
    2013/7/2 21:01:00
    451

    Direction Analysis Of Exhaust Gas Treatment Technology For Setting Machine

    Technology Extension
    |
    2013/6/27 6:42:00
    73

    Key Technologies For Sericin Recovery

    Technology Extension
    |
    2013/6/26 8:24:00
    20
    Read the next article

    Latest Information Express Of Domestic Textile Industry (7.10)

    Xiaobian today summarizes the latest information on the domestic textile industry, hoping to help you. The main information is: Golden Eagle clothing industrial park to build wood cellulose fiber industry chain; Shishi knitting industry optimization to actively integrate into the textile and garment industry chain; Changle, Fujian province is building an international textile trading market.

    主站蜘蛛池模板: 亚洲欧美卡通另类| 国产精品成年片在线观看| 午夜福利AV无码一区二区| 中文字幕视频网| 中国老人倣爱视频| 99heicom视频| 日韩精品无码免费一区二区三区| 国产精品偷伦视频观看免费| 午夜男女爽爽影院网站| 中文字幕の友人北条麻妃| 美女扒开屁股让男人桶| 成年人视频网址| 午夜精品一区二区三区在线观看 | 成av免费大片黄在线观看| 四虎1515hh丶com| 一级特黄性色生活片录像| 香蕉久久夜色精品国产| 日韩不卡视频在线观看| 国产亚洲精品精品精品| 中文字幕第2页| 精品亚洲成a人无码成a在线观看| 妞干网视频在线观看| 亚洲色大成网站WWW国产| 99久在线观看| 欧美日韩一区二区不卡三区| 国产精品一区欧美激情| 亚洲精品国产啊女成拍色拍| 一个人看的www视频免费在线观看| 精品久久久久国产免费| 夜夜爱夜夜做夜夜爽| 亚洲日韩中文字幕无码一区| CHINESE中国精品自拍| 欧美精品videosbestsexhd4k| 国产精品丝袜久久久久久不卡| 么公的又大又深又硬视频| 午夜激情小视频| 日本最新免费二区三区| 国产免费爽爽视频免费可以看 | 喝丰满女医生奶水电影| a级特黄的片子| 男人j进女人p免费视频不要下载的|