Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (08): 7-11.doi: 10.13475/j.fzxb.20220409506

• Invited Column： Reserch on Spinning Technology • Previous Articles     Next Articles

Effect of feeding forms on carding efficiency by licker-in roller of high yield carding machine

NI Jingda()   

  1. Qingdao Hongda Textile Machinery Co., Ltd., Qingdao, Shandong 266101, China
  • Received:2022-04-30 Revised:2022-05-26 Online:2022-08-15 Published:2022-08-24

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Abstract:

For the new type of high yield flat carder, with the problems of low output,high noil rate, low noil impurity rate and poor quality of sliver and yarn of the medium cotton production, which is produced in the form of forward feeding. The advantages and disadvantages of forward and reverse feeding form were analyzed. For the same type of carding machine, two kinds of feeding forms were used respectively to compare the influence of feeding form on the carding effect of high yield carding machine. Experiments were carried out to verify the effect of feeding form on combed cotton yarn and color spun cotton yarn. The results show that reverse feeding can increase carding machine output, and improve the carding ability between feeding and licker-in roller, and reduce noil cotton rate, and improve noil cotton impurity rate. The carding and impurity removal burden in the main carding area around cylinder is reduced. The quality of sliver and yarn has been improved. The service life of carding equipment has been extended. The advantages of reverse feeding of carding machine are especially for the production of medium cotton yarn and color spun yarn.

Key words: carding machine, reverse feeding, forward feeding, licker-in roller carding, noil rate, noil impurity rate

CLC Number: 

  • TS104.1

Fig.1

Schematic diagram of reverse feeding structure"

Fig.2

Schematic diagram of forward feeding structure"

Tab.1

Carding experimental scheme of cotton combed 14.6 tex yarn"

实验
编号		 给棉
方式		 刺辊
转速/
(r·min–1)		 锡林
转速/
(r·min–1)		 盖板
速度/
(mm·min–1)		 出条
速度/
(m·min–1)		 产量/
(kg·h–1)
A 顺向 760 417 180 140 47
B1 逆向 760 417 180 140 47
B2 逆向 670 370 180 140 47

Tab.2

Carding experimental scheme of cotton carding14.6 tex color spun yarn"

实验
编号		 给棉
方式		 刺辊
转速/
(r·min–1)		 锡林
转速/
(r·min–1)		 盖板
速度/
(mm·min–1)		 出条
速度/
(m·min–1)		 产量/
(kg·h–1)
C 顺向 870 415 260 145 40
D1 逆向 870 415 260 145 40
D2 逆向 730 415 260 145 40
D3 逆向 730 415 260 163 45

Tab.3

Test data of cotton combed 14.6 tex yarn"

工序
制品		 质量指标 不同实验方案下指标值
A B1 B2
刺辊落棉率/％ 2.47 1.36 1.13
刺辊落棉含杂率/％ 38 95 96
筵棉 棉结/(个·g–1) 512 498 508
重量短绒率/％ 8.5 9.0 8.7
根数短绒率/％ 24.6 25.4 25.2
生条 棉结/(个·g–1) 80 68 74
重量短绒率/％ 7.8 8.6 8.1
根数短绒率/％ 21.8 23.3 22.1
精梳条 棉结/(个·g–1) 13 13 11
重量短绒率/％ 8.1 9.7 8.3
根数短绒率/％ 15.3 18.2 16.1
末道并条 条干CVm值/％ 2.21 2.19 2.16
粗纱 条干CVm值/％ 3.52 3.56 3.41
细纱 强力/cN 263 242.7 272
强力CV值/％ 8.4 6.8 7.1
条干CVm值/％ 10.92 11.44 10.56
条干CVb值/％ 2.7 2.6 2.6
–40％细节/(个·km–1) 11 32 12
–50％细节/(个·km–1) 0 1 0
+35％粗节/(个·km–1) 80 130 72
+50％粗节/(个·km–1) 3 8 2
+140％棉结/(个·km–1) 55 85 48
+200％棉结/(个·km–1) 7 11 5
毛羽H值 3.31 3.44 3.22

Tab.4

Test data of cotton carding 18.2 tex color spun yarn"

工序
制品		 质量指标 不同实验方案下指标值
C D1 D2 D3
刺辊落棉率/％ 2.59 1.58 1.35 1.25
刺辊落棉含杂率/％ 40 96 95 90
生条 棉结/(个·g–1) 22 12 10 18
杂质/(个·g–1) 28 22 20 26
条干CVm值/％ 3.98 3.99 3.84 3.91
并条 预并条干CVm值/％ 3.87 3.92 3.65 3.82
末并条干CVm值/％ 3.41 3.48 3.26 3.35
粗纱 条干CVm值/％ 5.01 5.03 4.92 4.98
细纱 条干CVm值/％ 15.46 15.50 15.20 15.36
强力/cN 215 210 231 225
–40％细节/(个·km–1) 246 258 228 250
–50％细节/(个·km–1) 26 28 10 21
+35％粗节/(个·km–1) 1 250 1 270 1 180 1 192
+50％粗节/(个·km–1) 210 202 197 220
+140％棉结/(个·km–1) 1 535 1 528 1 420 1 560
+200％棉结/(个·km–1) 358 305 238 350
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