WO2017031609A1 - 三级分梳辊的高效高产转杯纺纱方法及装置 - Google Patents

三级分梳辊的高效高产转杯纺纱方法及装置 Download PDF

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WO2017031609A1
WO2017031609A1 PCT/CN2015/000734 CN2015000734W WO2017031609A1 WO 2017031609 A1 WO2017031609 A1 WO 2017031609A1 CN 2015000734 W CN2015000734 W CN 2015000734W WO 2017031609 A1 WO2017031609 A1 WO 2017031609A1
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Prior art keywords
roller
stage
opening roller
carding
rotor
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PCT/CN2015/000734
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English (en)
French (fr)
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薛元
高卫东
王鸿博
杨瑞华
郭明瑞
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江南大学
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Publication of WO2017031609A1 publication Critical patent/WO2017031609A1/zh

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/42—Control of driving or stopping
    • D01H4/44—Control of driving or stopping in rotor spinning
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers

Definitions

  • the invention belongs to the field of rotor spinning in the textile industry.
  • the rotor spinning is formed by kneading the cotton, the carding and the rotor to form a yarn, and the yarn of the rotor-spinning package is obtained by the yarn-feeding and winding device.
  • the sliver is separated into a continuous fiber flow having only 1-4 fibers in the cross section by the opening roller and the air flow passage, and then enters the rotor. This is a necessary condition for smooth spinning of the rotor, and is also a key condition for constraining the production of rotor spinning and expanding the number of spinning counts.
  • the speed of the rotor has been increased exponentially, and the speed of the 8000 rpm of the opening roller is considered to be its limit speed. Stripping and slivering at too high a speed of the opening roller will cause the fiber to be quilted. Breaking or breaking, the yarn strength drops sharply. At the front end of the rotor, the separation of the sliver by the opening roller and the air flow path is an important and important indicator of control.
  • the degree of separation of the sliver Obviously, the lower the number of fibers, the higher the degree of separation of the comb, and the more the number of fibers, the lower the comb separation.
  • the separation degree of the surface of the opening roller must be a certain degree. Below this level, there will be a situation of blocking the combing roller and the blocking cup, regardless of whether the low or high yarn is spun.
  • the degree of separation of the fiber streams entering the rotor is the same, ie the number of fibers in the cross section of the continuous fiber stream is 1-4.
  • the speed of the feed to the cotton roller must be increased in order to increase the sliver supply.
  • the speed of the opening roller must be increased proportionally.
  • stripping and slivering the sliver at an excessively high number of opening rollers causes excessive fibers to be broken or broken, resulting in a sharp drop in yarn strength.
  • the maximum speed of the opening roller is 8000 rpm. This results in a mismatch between the carding ability of the opening roller and the increase in the speed of the rotor.
  • the speed of the cotton roller is higher than that of the high cotton yarn.
  • the feed rate of the strip is much higher.
  • the production of the coarse yarn requires a greater degree of separation and a higher opening speed than the high count yarn. Since the maximum speed of the opening roller is 8000 rpm, the maximum rotation speed of the opening roller limits the supply of the carding fibers in the production of the medium and low-counting yarns, so that the yield is high but the spinning speed is not high when the low-yarn yarn is spun. .
  • the main contradiction in improving the production efficiency of the rotor spinning machine is the contradiction between the high-spinning roller speed and the increase in fiber damage.
  • the present invention adopts a three-stage carding rotor spinning method, which comprises cotton feeding, carding, coagulation and twisting, and yarn winding.
  • the carding is composed of a three-stage opening roller, that is, the first opening roller, the second opening roller and the third opening roller are arranged in parallel.
  • the rotation speed of the three-stage opening roller is gradually increased, the rotation speed of the first opening roller is 3000-5000 rpm, the rotation speed of the second opening roller is 6000-10000 rpm, and the rotation speed of the third opening roller is 12000-20000 rpm, three-stage
  • the needle density of the comb roller is increased step by step, and the working angle of the comb is gradually reduced.
  • the function of the opening roller comprises two parts, one function is to strip the fibers from the sliver of the cotton roller and the cotton plate to realize the carding and separation of the fibers.
  • the large increase in the speed of the combing roller makes the stripping roller increase the stripping force of the fiber, and the fiber is easily broken, so that the quality of the yarn is lowered.
  • Another function is to transport the fibers to the carding passage. The higher the rotational speed of the opening roller, the greater the centrifugal force of the fibers, and the fibers are more easily separated from the opening roller and into the carding passage. Due to the need for balanced stripping, carding, and fiber speed requirements when transferring to the carding passage, the maximum number of single-bath rolls is limited and is generally considered to be less than 8000 rpm.
  • the three-stage opening roller is used to realize the flexible stripping and flexible drawing of the sliver by increasing the drawing ratio step by step; on the other hand, by increasing the total draft ratio of the carding system, the combing ability and The matching of rotor spinning ability enhances the adaptability of rotor spinning and further increases the rotor spinning output.
  • the rotation speed of the first opening roller is low, so as to ensure that the stripping roller receives less fibers from the jaws of the cotton roller and the cotton sheet, the stripping force of the fibers is less, and the fiber breakage and damage are reduced;
  • the rotation speed of the opening roller is higher than that of the first opening roller.
  • the speed between the three opening rollers is relatively small, and the fibers on the opening roller
  • the relationship between the fibers is weak, and the transmission of the fibers between the three opening rollers has the effect of centrifugal force and air flow.
  • the stripping force of the fibers is small and the damage to the fibers is small.
  • V 0 line speed of the cotton roller
  • V 1 line speed of the carding roller 1
  • V 2 line speed of the carding roller 2
  • V 3 line speed of the carding roller 3
  • V 4 cup line Speed
  • V 5 take-up roller line speed
  • ⁇ 0 linear density of tampon (gram weight / meter);
  • ⁇ 1 the linear density (gram weight / meter) of the sliver A passing through the opening roller 1;
  • ⁇ 2 the linear density (gram weight / meter) of the sliver A passing through the opening roller 2;
  • ⁇ 3 the linear density (gram weight / meter) of the sliver A passing through the opening roller 3;
  • ⁇ 4 the linear density of the sliver A in the rotor (gram weight / meter),
  • E 1 a draft ratio of the opening roller 1 relative to the feed roller
  • E 2 a draft ratio of the opening roller 2 to the opening roller 1;
  • E 3 a draft ratio of the opening roller 3 to the opening roller 2;
  • E 4 a draft ratio of the rotor to the opening roller 3;
  • E 5 the draw ratio of the take-up roller relative to the rotor
  • the total draft ratio of the rotor spinning is equal to the draft ratio of the yarn feeding roller relative to the cotton roller.
  • the cotton strip is decomposed into a cotton net, the cotton web is decomposed into bundle fibers, and the bundle fibers are decomposed into single fibers. It enhances the function of the rotor spinning and combing area, and has the effects of flexibility, high efficiency and high yield.
  • Another object of the present invention is to provide a three-stage carding rotor spinning method, comprising a spinning system and a computer control system, the spinning system comprising a feeding carding mechanism, a cohesive twisting mechanism, and a winding forming mechanism
  • the feeding carding mechanism comprises a cotton roller and a three-stage opening roller.
  • the coagulation and twisting mechanism comprises a cotton conveying passage, a rotor cup and a yarn feeding device;
  • the winding forming mechanism comprises a yarn winding winding mechanism, and
  • the computer control system comprises a PLC programmable controller, a servo driver and a servo motor,
  • the cotton roller and the three-stage opening roller are driven by a servo motor. It consists of a series of instructions and a modular program that allows the control system to drive the actuator to perform the specified actions and tasks in a time-space sequence, driving the spinner to complete the spinning.
  • Figure 2 Three-point comb roller rotor spinning roving combing process
  • Figure 3 Three-stage comb roller multi-stage drafting control system
  • Figure 4 Control mode diagram of three-way comb roller rotor spinning system
  • the three-point comb roller rotor spinning machine is stripping fiber, Combing effects and the advantages of increased productivity.
  • Opening roller diameter 65mm;
  • Tampon weight 22.5g/5m
  • Feed fiber average linear density 1.82dtex, average fiber feed length: 24.0mm
  • first opening roller speed 5000 rpm
  • second opening roller speed 7500 rpm
  • first opening roller speed 11250 rpm
  • number of fibers in the surface of the third opening roller 15
  • Opening roller diameter 65mm;
  • Tampon weight 22.5g/5m
  • Feed fiber average linear density 1.82dtex, average fiber feed length: 24.0mm
  • Opening roller diameter 65mm;
  • Tampon weight 22.5g/5m
  • Feed fiber average linear density 1.94dtex, average fiber feed length: 22.8mm
  • first opening roller rotation speed 5000 rpm
  • second opening brush rotation speed 7500 rpm
  • first opening brush rotation speed 11250 rpm
  • root coefficient 380
  • Opening roller diameter 65mm;
  • Tampon weight 22.5g/5m
  • Feed fiber average linear density 1.82dtex, average fiber feed length: 24.0mm

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

一种采用多级分梳的转杯纺纱方法，包括给棉、分梳、凝聚加捻、引纱卷绕。分梳采用多级分梳辊，即第1分梳辊（1）、第2分梳辊（2）和第3分梳辊（3）平行排列组成。多级分梳辊的转速逐级递增，第1分梳辊的转速为3000-5000rpm，第2分梳辊的转速为6000-10000rpm，第3分梳辊的转速为12000-20000rpm，多级分梳辊的梳针密度逐级增大，梳针工作角逐级减小。一方面通过逐级递增的牵伸比实现对棉条的柔性剥取和柔性牵伸；另一方面通过增大分梳***的总牵伸比，实现分梳能力与转杯纺纱能力的匹配，提升转杯纺纱的适应性和进一步提高转杯纺纱产量。还公开了一种具有三级分梳辊的转杯纺装置。

Description

三级分梳辊的高效高产转杯纺纱方法及装置 技术领域
本发明属纺织行业的转杯纺纱领域。
背景技术
转杯纺纱通过给棉、分梳和转杯凝聚加捻形成纱线，经引纱和卷绕装置得到转杯纺筒子状卷装的纱线。作为转杯纺纱的一个条件，棉条经分梳辊和气流通道作用分离成截面内仅含1-4根纤维的连续纤维流后再进入转杯。这是转杯进行顺利纺纱的必要条件，也是约束提高转杯纺纱产量和扩展纺纱支数的关键条件。
以此关键点为中心，为了提高转杯纺纱产量有两个途径：一个途径是提高分梳辊对棉条的牵伸倍数，保证喂入的棉条经分梳辊和气流的分离后形成截面纤维为1-4根的连续纤维流；第二个途径是提高转杯速度及引纱速度。本专利重点讨论通过提高分梳辊对棉条的牵伸倍数来提高转杯纺纱产量和扩展纺纱支数的专利技术。
近几年，转杯速度已有了成倍地提高，而分梳辊的8000rpm的转速被认为是其极限转速，以过高的分梳辊转速剥取和分梳棉条，会造成纤维被折断或拉断，使得成纱强力急剧下降。在转杯前端，分梳辊及气流通道对棉条的分离度就是一个重要且需要控制的指标。
假定棉条所含纤维根数为常数，且气流通道对纤维流的分离度是常量(通过两端气流压差控制)，则可用纤维流离开分梳辊时其截面纤维根数作为分梳辊对棉条的分离度。显然，纤维根数越少分梳分离度越高，纤维根数越多分梳分离度越低。转杯纺在成纱过程中分梳辊表面纤维的分离度必须达到一定程度，低于这个程度，就会出现堵分梳辊和堵转杯的情况，不论纺低支纱还是高支纱，对进入转杯的纤维流的分离度都是一样的，即连续纤维流截面内纤维根数为1-4根。
要提高纺纱产量，就必须提高棉条的供应量。假定棉条定量不变，则为了提高棉条供应量就必须提升给棉罗拉的转速。为了使棉条仍达到原有的纤维分离度，就必须按比例提升分梳辊的转速。但以过高的分梳辊转速剥取和分梳棉条，会造成过多的纤维被折断或拉断，使得成纱强力急剧下降。一般，分梳辊的最高速度是8000rpm。这就造成了分梳辊的分梳能力与转杯速度提升的不匹配。
同样，在纺粗支纱时，以同样定量的棉条喂入，给棉罗拉速度要比高支纱棉 条喂入速度大很多，为了达到进入转杯时的纤维分离度，生产粗支纱比高支纱需要更大地分离度和更高地分梳辊转速。由于分梳辊的最高速度是8000rpm，在生产中低支纱时，分梳辊的最高转速限制了分梳纤维的供应量，故出现纺低支纱时产量高但纺纱速度不高的怪圈。
总而言之，提升转杯纺纱机生产效率的主要矛盾是：高分梳辊转速与纤维损伤增大的矛盾。
发明内容
为了解决上述问题，本发明采用三级分梳转杯纺纱方法，包括给棉、分梳、凝聚加捻、引纱卷绕。分梳采用三级分梳辊，即第1分梳辊、第2分梳辊和第3分梳辊平行排列组成。三级分梳辊的转速逐级递增，第1分梳辊的转速为3000-5000rpm，第2分梳辊的转速为6000-10000rpm，第3分梳辊的转速为12000-20000rpm，三级分梳辊的梳针密度逐级增大，梳针工作角逐级减小。
在单分梳辊转杯纺中，分梳辊的作用包括两大部分，一个作用是从给棉罗拉与给棉板钳口的棉条中剥取纤维，实现纤维的分梳与分离，分梳辊速度的大幅度提升，使得分梳辊对纤维的剥取作用力增大，容易将纤维拉断，使成纱质量下降。另一个作用是将纤维运送到梳棉通道，分梳辊的转速越高，纤维的离心力越大，纤维更容易与分梳辊分离并进入梳棉通道。由于需要平衡剥取、梳理纤维，以及转移到梳棉通道时对纤维速度的要求，单分梳辊转速的最大值是受到限制的，一般认为不宜超过8000rpm。
而采用三级分梳辊，一方面通过逐级递增的牵伸比实现对棉条的柔性剥取和柔性牵伸；另一方面通过增大分梳***的总牵伸比，实现分梳能力与转杯纺纱能力的匹配，提升转杯纺纱的适应性和进一步提高转杯纺纱产量。
第一分梳辊的转速较低，这样可以保证分梳辊从给棉罗拉与给棉板钳口剥取纤维时，纤维所受的剥取拉力较小，减少纤维的断裂和损伤；第二分梳辊的转速高于第一分梳辊，经过第二分梳辊的梳理，纤维的纵向取向得到优化，横向转移混合进一步优化，纤维的分离度进一步提高；第三分梳辊是高速分梳辊，纤维经过第三分梳辊不仅得到更好的梳理与转移，此时，纤维基本处于单纤维状态，达到较高的纤维分离度，并且速度得到提升，到达进入梳棉通道的离心力要求，可以顺利有序的进入转杯成纱。同时三个分梳辊之间的速比较小，且分梳辊上纤维 之间的联系较弱，纤维在三个分梳辊之间的传递有离心力和气流的作用，纤维承受的剥取作用力很小，对纤维的损伤很小。
纺纱工艺计算
Figure PCTCN2015000734-appb-000001
Figure PCTCN2015000734-appb-000002
Figure PCTCN2015000734-appb-000003
Figure PCTCN2015000734-appb-000004
Figure PCTCN2015000734-appb-000005
Figure PCTCN2015000734-appb-000006
Figure PCTCN2015000734-appb-000007
其中，V0：给棉罗拉线速度；V1：分梳辊1的线速度；V2：分梳辊2的线速度；V3：分梳辊3的线速度；V4：转杯线速度；V5：引纱罗拉线速度；
ρ0：棉条的线密度(克重/米)；
ρ1：棉条A经过分梳辊1的线密度(克重/米)；
ρ2：棉条A经过分梳辊2的线密度(克重/米)；
ρ3：棉条A经过分梳辊3的线密度(克重/米)；
ρ4：棉条A在转杯内的线密度(克重/米)，
ρ：成纱线密度(克重/米)；
E1：分梳辊1相对于给棉罗拉的牵伸比；
E2：分梳辊2相对于分梳辊1的牵伸比；
E3：分梳辊3相对于分梳辊2的牵伸比；
E4：转杯相对于分梳辊3的牵伸比；
E5：引纱罗拉相对于转杯的牵伸比；
E：转杯纺总牵伸比，等于引纱罗拉相对于给棉罗拉的牵伸比。
通过上述多级剥取、开松、除杂、分梳牵伸、转移，顺利完成将棉条分解成棉网、棉网再分解成束纤维、束纤维在分解成单纤维的超大牵伸功能，提升了转杯纺分梳区的功能，具有柔性、高效、高产的效果。
本发明的另一个目的是提供一种三级分梳转杯纺纱方法的装置，包括纺纱***和电脑控制***，纺纱***包括喂给分梳机构、凝聚加捻机构、卷绕成型机构，其特征在于喂给分梳机构包括给棉罗拉、三级分梳辊。所述凝聚加捻机构包括输棉通道、转杯和引纱装置；卷绕成型机构包括引纱卷绕机构，所述的电脑控制***包括PLC可编程控制器、伺服驱动器、伺服电机，所述的给棉罗拉、三级分梳辊由伺服电机驱动。由一系列指令和模块化的程序组成，使控制***驱动执行机构按照一定的时空次序完成指定的动作和任务，驱动纺纱器完成纺纱。
附图说明
图1：转杯纺纱流程图
图2：三分梳辊转杯纺粗纱梳理牵伸过过程图
图3：三分梳辊多级牵伸纺纱控制***图
图4：三分梳辊转杯纺成纱***控制模式图
1，2，3-分梳辊，4，5-排杂口，6-给棉罗拉，7-棉条，8-加压弹片，9-给棉板，10-输棉通道，11-阻捻器，12-转杯，13-抽气孔，14，15-引纱罗拉，16-纱线
具体实施方式
通过对比现有Autocoro360型单分梳辊转杯纺纱机与三分梳辊转杯纺纱机分别生产28tex纱和60tex纱为例，说明三分梳辊转杯纺纱机在剥取纤维、分梳效果，以及提高生产效率的优势。
实施例1：生产低特纱
以现有Autocoro360型转杯纺纱机和三分梳辊转杯纺纱机分别生产28tex纱为例，分别计算两台纺纱机的产量
(1)Autocoro360型转杯纺纱机
设定：分梳辊转速：7500rpm，分梳辊表面截面内纤维根数：15根，捻系数：380
分梳辊直径：65mm；
棉条定量：22.5g/5m；
喂入纤维平均线密度：1.82dtex，喂入纤维平均长度：24.0mm
计算过程：
Figure PCTCN2015000734-appb-000008
Figure PCTCN2015000734-appb-000009
Figure PCTCN2015000734-appb-000010
Figure PCTCN2015000734-appb-000011
引纱速度＝棉条喂入速度*总牵伸倍数＝0.929*160.7＝149.3(m/min)
Figure PCTCN2015000734-appb-000012
转杯转速＝捻度*引纱速度＝718*149.3＝107197(rpm)
Figure PCTCN2015000734-appb-000013
(2)三分梳辊型转杯纺纱机
设定：第一分梳辊转速：5000rpm，第二分梳辊转速：7500rpm，第一分梳辊转速：11250rpm，第三分梳辊表面截面内纤维根数：15，根捻系数：380
分梳辊直径：65mm；
棉条定量：22.5g/5m；
喂入纤维平均线密度：1.82dtex，喂入纤维平均长度：24.0mm
计算过程：
Figure PCTCN2015000734-appb-000014
Figure PCTCN2015000734-appb-000015
Figure PCTCN2015000734-appb-000016
Figure PCTCN2015000734-appb-000017
引纱速度＝棉条喂入速度*总牵伸倍数＝1.393*160.7＝223.9(m/min)
Figure PCTCN2015000734-appb-000018
转杯转速＝捻度*引纱速度＝718*223.9＝160760(rpm)
Figure PCTCN2015000734-appb-000019
表1.
Figure PCTCN2015000734-appb-000020
实施例2.生产粗特纱
以现有Autocoro360型转杯纺纱机和三分梳辊转杯纺纱机分别生产60tex纱为例，分别计算两台纺纱机的产量
(1)Autocoro360型转杯纺纱机
设定：分梳辊转速：7500rpm，分梳辊表面截面内纤维根数：30根，捻系数：380
分梳辊直径：65mm；
棉条定量：22.5g/5m；
喂入纤维平均线密度：1.94dtex，喂入纤维平均长度：22.8mm
计算过程：
Figure PCTCN2015000734-appb-000021
Figure PCTCN2015000734-appb-000022
Figure PCTCN2015000734-appb-000023
Figure PCTCN2015000734-appb-000024
引纱速度＝棉条喂入速度*总牵伸倍数＝1.980*75.0＝148.5(m/min)
Figure PCTCN2015000734-appb-000025
转杯转速＝捻度*引纱速度＝490*148.5＝72765(rpm)
Figure PCTCN2015000734-appb-000026
(2)三分梳辊型转杯纺纱机
设定：第一分梳辊转速：5000rpm，第二分梳辊转速：7500rpm，第一分梳辊转速：11250rpm，第三分梳辊表面截面内纤维根数：30，根捻系数：380
分梳辊直径：65mm；
棉条定量：22.5g/5m；
喂入纤维平均线密度：1.82dtex，喂入纤维平均长度：24.0mm
计算过程：
Figure PCTCN2015000734-appb-000027
Figure PCTCN2015000734-appb-000028
Figure PCTCN2015000734-appb-000029
Figure PCTCN2015000734-appb-000030
引纱速度＝棉条喂入速度*总牵伸倍数＝2.970*75.0＝222.8(m/min)
Figure PCTCN2015000734-appb-000031
转杯转速＝捻度*引纱速度＝490*222.8＝109172(rpm)
Figure PCTCN2015000734-appb-000032
表2.
Figure PCTCN2015000734-appb-000033
Figure PCTCN2015000734-appb-000034

Claims (4)

  1. 一种三级分梳辊的高效高产转杯纺纺纱方法，其特征在于具体包括：
    1)分梳采用三级分梳辊；
    2)给棉罗拉以线速度V0运动；分梳辊1、2、3分别以线速度V1、V2、V3运动；转杯以线速度V4运动，引纱罗拉以线速度V5运动；设棉条的线密度ρ0，棉条经过分梳辊1、2、3的线密度分别为ρ1、ρ2、ρ3，成纱线密度为ρ，分梳辊1相对于给棉罗拉的牵伸比E1；分梳辊2相对于分梳辊1的牵伸比E2；分梳辊3相对于分梳辊2的牵伸比E3；转杯相对于分梳辊3的牵伸比E4；引纱罗拉相对于转杯的牵伸比E5；转杯纺总牵伸比E，等于引纱罗拉相对于给棉罗拉的牵伸比，则转杯纺成纱牵伸倍数
    Figure PCTCN2015000734-appb-100001
    Figure PCTCN2015000734-appb-100002
    Figure PCTCN2015000734-appb-100003
    Figure PCTCN2015000734-appb-100004
    Figure PCTCN2015000734-appb-100005
    Figure PCTCN2015000734-appb-100006
    Figure PCTCN2015000734-appb-100007
    3)三个分梳辊的速度依次为：第1分梳辊的转速为1500-3000rpm，第2分梳辊的转速为3000-6000rpm，第3分梳辊的转速为6000-12000rpm。
  2. 如权利要求1所述的方法，其特征在于：所述的三级分梳辊由第1分梳辊、第2分梳辊和第3分梳辊平行排列组成。
  3. 如权利要求2所述的多级分梳转杯纺纱方法，所述三级分梳辊的梳针密度逐级增大，梳针工作角逐级减小。
  4. 实现上述任一权利要求所述方法的装置，其特征在于：包括纺纱***和电脑控制***，纺纱***包括喂给分梳机构、凝聚加捻机构、卷绕成型机构，其特征在于：所述的喂给分梳机构包括给棉罗拉、三级分梳辊；所述凝聚加捻机构包括输棉通道、转杯和引纱装 置；卷绕成型机构包括引纱卷绕机构，所述的电脑控制***包括PLC可编程控制器、伺服驱动器、伺服电机，所述的给棉罗拉、三级分梳辊由伺服电机驱动。
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