J9九游会AG

Solution解决方(fang)案

J9九游会AG变频器在纺织(zhi)倍捻机机上的应用

引言

     在纺(fang)织(zhi)(zhi)(zhi)工(gong)(gong)程(cheng)(cheng)领域,纺(fang)织(zhi)(zhi)(zhi)与织(zhi)(zhi)(zhi)布是(shi)两(liang)个完全不同的(de)(de)(de)(de)(de)工(gong)(gong)艺(yi)过程(cheng)(cheng)。纺(fang)纱(sha)(sha)(sha)是(shi)织(zhi)(zhi)(zhi)布的(de)(de)(de)(de)(de)前期工(gong)(gong)艺(yi)。加(jia)(jia)(jia)捻(nian)(nian)属于(yu)纺(fang)纱(sha)(sha)(sha)的(de)(de)(de)(de)(de)后期工(gong)(gong)艺(yi)。对(dui)于(yu)短纤纱(sha)(sha)(sha),加(jia)(jia)(jia)捻(nian)(nian)使(shi)纤维(wei)之间抱(bao)合得更加(jia)(jia)(jia)紧密,使(shi)纱(sha)(sha)(sha)具有一定(ding)的(de)(de)(de)(de)(de)物(wu)(wu)(wu)(wu)理机械性(xing)质;对(dui)于(yu)长丝,加(jia)(jia)(jia)捻(nian)(nian)的(de)(de)(de)(de)(de)工(gong)(gong)艺(yi)目(mu)的(de)(de)(de)(de)(de)是(shi)改善织(zhi)(zhi)(zhi)布的(de)(de)(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)性(xing),提高纺(fang)织(zhi)(zhi)(zhi)品抗起毛起球(qiu)、抗勾(gou)丝,强捻(nian)(nian)使(shi)织(zhi)(zhi)(zhi)物(wu)(wu)(wu)(wu)风格(ge)独特。加(jia)(jia)(jia)捻(nian)(nian)是(shi)使(shi)纱(sha)(sha)(sha)条的(de)(de)(de)(de)(de)两(liang)个截面产(chan)生相对(dui)回转(zhuan),这(zhei)时(shi)纱(sha)(sha)(sha)条中(zhong)(zhong)原来平行于(yu)纱(sha)(sha)(sha)轴(zhou)的(de)(de)(de)(de)(de)纤维(wei)倾斜成螺旋(xuan)线。纱(sha)(sha)(sha)线加(jia)(jia)(jia)捻(nian)(nian)的(de)(de)(de)(de)(de)多少以(yi)及纱(sha)(sha)(sha)线在织(zhi)(zhi)(zhi)物(wu)(wu)(wu)(wu)中(zhong)(zhong)的(de)(de)(de)(de)(de)捻(nian)(nian)向与捻(nian)(nian)度的(de)(de)(de)(de)(de)配合,对(dui)产(chan)品的(de)(de)(de)(de)(de)外观和(he)性(xing)能都有较大的(de)(de)(de)(de)(de)影响。加(jia)(jia)(jia)捻(nian)(nian)性(xing)质的(de)(de)(de)(de)(de)指标有:表(biao)示(shi)加(jia)(jia)(jia)捻(nian)(nian)程(cheng)(cheng)度、捻(nian)(nian)系(xi)数及表(biao)示(shi)加(jia)(jia)(jia)捻(nian)(nian)方向的(de)(de)(de)(de)(de)捻(nian)(nian)向。纱(sha)(sha)(sha)线的(de)(de)(de)(de)(de)捻(nian)(nian)向对(dui)织(zhi)(zhi)(zhi)物(wu)(wu)(wu)(wu)的(de)(de)(de)(de)(de)外观和(he)手(shou)感影响很(hen)大,利用经纬(wei)纱(sha)(sha)(sha)的(de)(de)(de)(de)(de)捻(nian)(nian)向与织(zhi)(zhi)(zhi)物(wu)(wu)(wu)(wu)组织(zhi)(zhi)(zhi)相配合,可织(zhi)(zhi)(zhi)出外观、手(shou)感等风格(ge)各(ge)异的(de)(de)(de)(de)(de)织(zhi)(zhi)(zhi)物(wu)(wu)(wu)(wu)。

      倍(bei)(bei)捻(nian)(nian)机作为一种加捻(nian)(nian)设备,实现一转(zhuan)两捻(nian)(nian),效率比传(chuan)统捻(nian)(nian)线机成(cheng)倍(bei)(bei)提高(gao),卷装(zhuang)容(rong)量(liang)增大(da),加捻(nian)(nian)质(zhi)量(liang)大(da)幅度提高(gao)。倍(bei)(bei)捻(nian)(nian)机主要(yao)具有以(yi)下特点:高(gao)品质(zhi)锭子在(zai)高(gao)速运(yun)转(zhuan)下的(de)持久稳定(ding)性(xing);二(er)级传(chuan)动机构(gou),使受力(li)更合理,加捻(nian)(nian)范围更广;油浴(yu)式(shi)齿轮箱,特殊的(de)导(dao)纱(sha)曲(qu)线,使卷绕(rao)(rao)成(cheng)形良好;卷绕(rao)(rao)张(zhang)力(li)可以(yi)在(zai)超(chao)喂罗(luo)拉上任意调节,因此也适应于染(ran)色用(yong)松(song)弛柔软的(de)卷绕(rao)(rao)。

倍捻机系统原理

1.倍(bei)捻(nian)机(ji)主要由(you)动力(li)部分(fen)、倍(bei)捻(nian)单元(yuan)和传动部分(fen)等(deng)组成。

(1)动力部(bu)分主要(yao)包括电动机(ji)、电器控制箱(xiang)、指(zhi)示器和操作面板。

(2)倍(bei)捻(nian)(nian)(nian)单(dan)元(yuan)的结(jie)构主要包括(kuo)锭子(zi)制动(dong)装置、倍(bei)捻(nian)(nian)(nian)机锭子(zi)部(bu)分、纱线(xian)卷统装置、倍(bei)捻(nian)(nian)(nian)单(dan)元(yuan)的特殊(shu)装置等。

(3)传(chuan)动(dong)(dong)部分主要是电动(dong)(dong)机通过皮带(dai)(dai)盘、皮带(dai)(dai)、锭子(zi)龙(long)带(dai)(dai)传(chuan)动(dong)(dong)锭子(zi),由(you)锭子(zi)龙(long)带(dai)(dai)通过齿型带(dai)(dai)、减速装置等传(chuan)到卷绕(rao)罗(luo)拉(la)、超喂罗(luo)拉(la)等。同时将(jiang)横动(dong)(dong)凸轮的(de)传(chuan)动(dong)(dong)变成滑块(kuai)往复(fu)运(yun)动(dong)(dong),带(dai)(dai)动(dong)(dong)横动(dong)(dong)导纱器往复(fu)。

2.倍(bei)捻(nian)机整(zheng)体结构图如下:

3.倍捻机工作原(yuan)理(li)

      锭(ding)(ding)(ding)子(zi)回(hui)转一周,纱(sha)(sha)线形(xing)成(cheng)(cheng)(cheng)2个(ge)(ge)捻(nian)(nian),故(gu)名倍捻(nian)(nian)。加捻(nian)(nian)的(de)(de)过(guo)(guo)程是通(tong)过(guo)(guo)锭(ding)(ding)(ding)子(zi)完成(cheng)(cheng)(cheng)的(de)(de).第一个(ge)(ge)捻(nian)(nian)在(zai)张(zhang)力弹(dan)子(zi)和(he)锭(ding)(ding)(ding)盘(pan)出(chu)口处形(xing)成(cheng)(cheng)(cheng);第二个(ge)(ge)捻(nian)(nian)在(zai)锭(ding)(ding)(ding)盘(pan)出(chu)口和(he)导(dao)纱(sha)(sha)钩(gou)(gou)之间形(xing)成(cheng)(cheng)(cheng)。纱(sha)(sha)线由(you)(you)(you)于输出(chu)机(ji)构的(de)(de)牵引,从锭(ding)(ding)(ding)罐中(zhong)的(de)(de)喂入(ru)筒(tong)子(zi)退出(chu),进入(ru)空心(xin)锭(ding)(ding)(ding)子(zi)的(de)(de)中(zhong)心(xin)孔(kong)。在(zai)空心(xin)锭(ding)(ding)(ding)子(zi)中(zhong)纱(sha)(sha)线由(you)(you)(you)张(zhang)力器(qi)(qi)控制,也就是说,如上(shang)图(tu)所(suo)示,当龙带(dai)带(dai)动锭(ding)(ding)(ding)子(zi)转动的(de)(de)同时,摩擦滚筒(tong)也带(dai)动捻(nian)(nian)丝(si)筒(tong)转动,从而使(shi)纱(sha)(sha)线从供(gong)丝(si)筒(tong)子(zi)进入(ru)张(zhang)力管,穿过(guo)(guo)张(zhang)力珠,被(bei)张(zhang)力珠的(de)(de)弹(dan)性(xing)作用所(suo)压紧,形(xing)成(cheng)(cheng)(cheng)一个(ge)(ge)握持点,纱(sha)(sha)线退离空心(xin)锭(ding)(ding)(ding)子(zi)的(de)(de)中(zhong)心(xin)孔(kong),垂直进入(ru)锭(ding)(ding)(ding)盘(pan),接着纱(sha)(sha)线由(you)(you)(you)锭(ding)(ding)(ding)盘(pan)出(chu)口经储(chu)纱(sha)(sha)区偏转到(dao)达静止导(dao)纱(sha)(sha)钩(gou)(gou),并形(xing)成(cheng)(cheng)(cheng)气圈,气圈的(de)(de)高度由(you)(you)(you)导(dao)纱(sha)(sha)钩(gou)(gou)的(de)(de)位置确(que)定,纱(sha)(sha)线经导(dao)纱(sha)(sha)钩(gou)(gou)后,再通(tong)过(guo)(guo)小导(dao)纱(sha)(sha)罗拉,到(dao)达超微罗拉,最后纱(sha)(sha)线经过(guo)(guo)导(dao)纱(sha)(sha)器(qi)(qi)交(jiao)叉卷绕在(zai)筒(tong)子(zi)上(shang)。

4.变频器应用原理: 

      倍捻(nian)(nian)机(ji)属(shu)于织造前(qian)准备工艺的设备,作(zuo)为(wei)(wei)一(yi)种(zhong)加捻(nian)(nian)设备,传(chuan)统的倍捻(nian)(nian)机(ji)只使(shi)用一(yi)台电(dian)动机(ji)作(zuo)为(wei)(wei)动力(li),通过龙带(dai)(dai)传(chuan)动机(ji)构(gou)和(he)齿轮机(ji)构(gou)分配到各锭子(zi)、卷绕轴和(he)横动摆杆(gan)。倍捻(nian)(nian)机(ji)在(zai)加捻(nian)(nian)不(bu)(bu)同支数(shu)和(he)股数(shu)的纱(sha)线,需改变锭子(zi)速度(du)。传(chuan)统的倍捻(nian)(nian)机(ji)通过更换龙带(dai)(dai)皮(pi)带(dai)(dai)盘(pan)完(wan)成此(ci)工艺,不(bu)(bu)仅(jin)效率低下,且需由(you)专业保(bao)全(quan)工完(wan)成。现(xian)代(dai)变频传(chuan)动技术(shu)的持续(xu)发展,对三相异(yi)步电(dian)机(ji)无极调(diao)速成为(wei)(wei)可能。更为(wei)(wei)重要(yao)的是(shi),在(zai)变频器驱动下,随着(zhe)电(dian)机(ji)功率因素的提(ti)高,其运(yun)行电(dian)流随之降低,从而降低设备电(dian)耗,节约(yue)运(yun)行成本。

 

5、J9九游会AG变(bian)频器的技(ji)术特点

      J9九游会AG变频器是高(gao)(gao)性能矢(shi)量变频器,通(tong)(tong)过对(dui)(dui)电机磁通(tong)(tong)电流和转(zhuan)(zhuan)矩(ju)(ju)电流的(de)(de)解耦控(kong)(kong)制(zhi),实现了对(dui)(dui)转(zhuan)(zhuan)矩(ju)(ju)的(de)(de)快速响应和准确控(kong)(kong)制(zhi),可以(yi)高(gao)(gao)精度进行宽范围的(de)(de)调速运行和转(zhuan)(zhuan)矩(ju)(ju)控(kong)(kong)制(zhi)。有多(duo)种(zhong)频率设定方式和启动方式,稳(wen)速精度能达到小(xiao)(xiao)于(yu)等(deng)于(yu)0.5%的(de)(de)额(e)定同步转(zhuan)(zhuan)速,速度控(kong)(kong)制(zhi)稳(wen)定度能达到小(xiao)(xiao)于(yu)等(deng)于(yu)0.3%的(de)(de)额(e)定同步转(zhuan)(zhuan)速,转(zhuan)(zhuan)矩(ju)(ju)响应低(di)于(yu)40ms,同时独(du)特的(de)(de)多(duo)点V/F曲线让扭(niu)力提升(sheng)更(geng)稳(wen)定、高(gao)(gao)效。

6.应用(yong)方案优点

      采用变频器驱动技术(shu),重(zhong)点在于其(qi)驱动普通三(san)相(xiang)异步(bu)电(dian)(dian)机实(shi)现无极变速(su)的便利性,同时优化电(dian)(dian)机功率因素(su),随着 速(su)度的变化,运行电(dian)(dian)流(liu)随之变化,达到节能目的;变频改造后其(qi)主(zhu)要优点主(zhu)要体(ti)现在如下几个方面:

a.具有显著的节(jie)电(dian)效果在(zai)变(bian)频器驱动下,随着(zhe)电(dian)机功(gong)率因素的提高(gao),其运(yun)行(xing)电(dian)流随之(zhi)降(jiang)低(di),从而降(jiang)低(di)设备(bei)电(dian)耗,节(jie)约运(yun)行(xing)成本。

b.修(xiu)改工(gong)(gong)艺(yi)参数(shu)方(fang)(fang)便(bian)快捷(jie) 加捻不同纱(sha)(sha)线时,无需更换龙带(dai)皮带(dai)盘(pan),直接(jie)调节变频器现(xian)实面板(ban)速度,实现(xian)无级调速,满足生产工(gong)(gong)艺(yi)要求,提高(gao) 成纱(sha)(sha)质量(liang)。操作方(fang)(fang)便(bian)快捷(jie),一般工(gong)(gong)人即可完成。

c.启(qi)(qi)动平(ping)滑,应用交流变频技术就能够很好的解决平(ping)滑启(qi)(qi)动,设备启(qi)(qi)动加速时间可人为(wei)设定,有效消除机械(xie)启(qi)(qi)动时的冲击力,延长设备使用寿命。

d.对电机有保护功能,降低电机维修(xiu)费用。使(shi)用变频控(kong)(kong)制,控(kong)(kong)制电(dian)气线路更为(wei)简单明(ming)了。同时变频驱动自身设计有(you)丰富 的电(dian)机保护功能(neng),在电(dian)机过流、过载、堵转情况下均能(neng)有(you)效防(fang)止电(dian)机烧毁。

e.启动电流小,减(jian)少电源设备(bei)容量。

 

变频器在使用中注意事项及日常维护

1.纺(fang)织(zhi)行业中毛(mao)(mao)絮一(yi)直是很(hen)大的问题,容易堵死通风口,导致散热不(bu)好(hao),引起(qi)过热现象,所以(yi)很(hen)有必要对变(bian)频器定期清理毛(mao)(mao)絮,以(yi)免影响(xiang)变(bian)频器的散热

2.在(zai)长时(shi)(shi)间不使用的时(shi)(shi)候,保证(zheng)一(yi)个月上电(dian)一(yi)次(ci)

3.保证电气柜,通(tong)风(feng)口的畅通(tong)

 

结束语

      随(sui)着(zhe)电气(qi)自动化的(de)发展(zhan),电气(qi)控制越(yue)(yue)(yue)来(lai)越(yue)(yue)(yue)智能化,同(tong)时人(ren)(ren)们生(sheng)活水(shui)平的(de)提(ti)高(gao)(gao),对纺织加工的(de)精度(du)提(ti)出(chu)越(yue)(yue)(yue)来(lai)越(yue)(yue)(yue)高(gao)(gao)的(de)要求(qiu),伺服(fu)、PLC、人(ren)(ren)机界面逐(zhu)渐加入倍(bei)捻机系统,要求(qiu)变频器与它(ta)们进行通讯控制,这(zhei)样大(da)大(da)提(ti)高(gao)(gao)系统的(de)运行速率(lv),不仅提(ti)高(gao)(gao)精度(du),还提(ti)高(gao)(gao)生(sheng)产(chan)速度(du)。


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