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新闻资讯/NEWS

德赢入口机常见异常现象的原因及修正措施/Causes and corrective measures for common abnormal phenomena of texturing machine

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【摘要】:
德赢入口机常见异常现象的原因及修正措施/Causes and corrective measures for common abnormal phenomena of texturing machine

 

丝条在拉伸变形过程中,常常会发生断头、疵点、假捻张力变化等异常现象,造成这些异常情况的原因及其措施如下表: 

In the process of tensile deformation, the filaments often have abnormal phenomena such as broken ends, defects, and false twists. The causes and measures of these abnormal conditions are as follows:

 

一、断头(Decollation)

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

纺丝卷绕不均匀,纺丝造成缺陷

Spinning winding is uneven, and spinning causes defects

检查纺丝造成的缺陷,测定I罗拉丝条张力的变化。

Check the defects caused by the spinning and determine the change in the tension of the I roller.

2

POY与后加工条件不合适

POY and post-processing conditions are not suitable

降低拉伸倍数,更换POY

Reduce the draw ratio and replace the POY

3

POY的特性粘数较低

POY has lower characteristic viscosity

检查聚酯切片、纺丝的无油丝和POY的特性粘数,调整纺丝条件,使POY的特性粘数在0.62以上,纺丝时的特性粘数降小0.02

Check the intrinsic viscosity of the polyester chips, the spun-free yarn and the POY, and adjust the spinning conditions so that the intrinsic viscosity of POY is above 0.62, and the intrinsic viscosity of the spinning is reduced by 0.02.

4

导丝器、磨擦盘、热箱被沾污

Wire guide, friction plate, hot box are stained

检查纺丝机和德赢入口机上所有与丝条接触的导丝器、摩擦盘热箱等处,并清除污物

Check all the yarn guides, friction disc heat boxes, etc. that are in contact with the yarn on the spinning machine and the texturing machine, and remove dirt.

5

线路不正确

Line is incorrect

检查调整丝路

Check adjustment wire

6

因POY上油率不够或不均匀,造成POY各单丝间抱合力低

Due to insufficient or uneven oiling rate of POY, the cohesion between POY filaments is low.

检查供油系统,提高上油率或改用抱合力好的POY油剂

Check the oil supply system, increase the oiling rate or switch to the POY oil with good cohesion

7

磨擦过度

Excessive friction

检查导丝器和丝路是否正常,增加POY上油量,改换低摩擦系数的油剂

Check if the yarn guide and the wire are normal, increase the oil quantity of POY, and change the oil with low friction coefficient.

8

丝条的温度较高

Filaments have a higher temperature

降低第一热箱温度,提高冷却板冷却效率,使丝条进入假捻器前低于80℃

Reduce the temperature of the first hot box, improve the cooling efficiency of the cooling plate, and make the wire below 80 °C before entering the false twister

9

加热张力太高

Heating tension is too high

降低D/Y丝,使解捻张力与加捻张力的丝值下降

Reduce the D/Y filament, so that the tension of the untwisting tension and the tension of the twisting is decreased.


二、毛丝(Silk)

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

加捻张力和解捻张力太高

Twisting tension and untwisting tension are too high

降低拉伸倍数

Reduce the draw ratio

2

卷绕张力太高(在加工167dtexDTY时卷绕张力不应该超过15cN)

Winding tension is too high (winding tension should not exceed 15cN when machining 167dtexDTY)

增加III罗拉的速度,,降低卷绕速度

Increase the speed of the III roller and reduce the winding speed

3

摩托盘转速变化

Motor tray speed change

用闪光测速仪检查磨擦盘的转速,调整假捻机构

Check the speed of the friction disc with a flash speedometer and adjust the false twist mechanism

4

原因不明

unknown reason

降低拉伸变形加工速度,更换磨擦盘(或改变磨擦盘的材料)

Reduce the speed of the stretch deformation process, replace the friction disc (or change the material of the friction disc)

 

三、运转不稳定,加捻和解捻张力变化大(Unstable operation, large twist and untwisting tension)

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

POY的条干均率高

POY has a high average dry rate

改换POY原丝,检查纺丝工艺条件,使条干不匀率U%低于1%

Change the POY original yarn, check the spinning process conditions, so that the unevenness of the strip is less than 1% U%

2

POY的伸度波动大

POY has large fluctuations in elongation

改换POY原丝,检查POY的伸度变异系数,要求低于18%

Change the POY original yarn and check the elongation coefficient of POY, which is less than 18%.

3

POY原丝退卷不均匀

POY original yarn unwinding unevenly

改换POY卷绕筒子,检查I罗拉前丝条的张力,改变纺丝卷绕成型,使其有好的退丝性能

Change the POY winding bobbin, check the tension of the front roller of the I roller, change the spinning winding shape, and make it have good silk-removing performance.

4

假捻器内温度太高

The temperature inside the false twister is too high

降低第一热箱温度,增加磨擦假捻器前的丝条冷却效果

Reduce the temperature of the first hot box and increase the cooling effect of the wire before the friction device

5

在第一热箱和假捻器之间气圈不稳定

The air ring is unstable between the first hot box and the false twister

增加D/Y比或拉伸倍数,以达到增加加捻张力的目的,减小导丝器的阻力

Increase the D/Y ratio or draw ratio to increase the twisting tension and reduce the resistance of the yarn guide

6

磨擦盘损坏或积污

Damage to the disc or dirt

清洁或调整摩托盘,缩短清洁周期

Clean or adjust the tray to shorten the cleaning cycle

7

磨擦盘转速变化

Friction disk speed change

测定转速,并调整假捻器机构

Determine the speed and adjust the false twist mechanism

8

加捻张力太低

Twisting tension is too low

增加D/Y丝

Increase D/Y wire

9

从盘到丝条的传递力不合适

Inappropriate transmission force from the disk to the thread

调整D/Y丝使解捻张力与加捻张力的丝值降低到1.05~1.3,1.7<D/Y<2.4。当加捻张力的数值(cN)小于DTY成品丝纤度数(dtex)的1/4时,用提高拉伸倍数的办法来提高张力。

Adjusting the D/Y wire reduces the wire tension of the untwisting tension and the twisting tension to 1.05 to 1.3, and 1.7 < D/Y < 2.4. When the value of the twisting tension (cN) is less than 1/4 of the DTY finished filament count (dtex), the tension is increased by increasing the draw ratio.

10

丝条在I、II处打滑

The thread slips at I and II

检查皮圈打滑情况,使之正常

Check the apron slip to make it normal

11

丝条在的假捻器内磨擦盘处打滑

The thread is slippery in the friction plate inside the false twister

减小POY上油量:更换POY油剂以提高磨擦盘与丝条之间的磨擦力;中间磨擦盘数,提高对丝条的夹持力;增磨擦盘的间距,改善磨擦盘与丝条之间的接触情况

Reduce the amount of POY oil: replace the POY oil to improve the friction between the friction disc and the thread; the number of intermediate friction discs to increase the clamping force on the thread; increase the spacing of the friction disc, improve the friction disc and the thread Contact situation

 

 

12

原因不明

unknown reason

降低拉伸变形加工速度

Reduce the speed of stretch deformation processing

 

四、雪花屑严重(Snow flakes are serious)

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

磨擦假器表面太精糙或磨损

The surface of the friction dummy is too rough or worn

改用表面细洁的磨擦盘

Use a clean surface with a fine grinding disc

2

原丝POY特性粘性太低

Raw silk POY characteristics are too viscous

检查聚脂切片至纺丝各工序的工艺条件,使POY的特性粘数大于0.62;使从切片干燥到纺丝卷绕POY的特性粘数降小于0.02

Check the process conditions of the polyester chip to the spinning process, so that the intrinsic viscosity of POY is greater than 0.62; the characteristic viscosity drop from the drying of the slice to the spinning of POY is less than 0.02.

3

在磨擦盘上因高度磨擦发热

Heat on the friction plate due to high friction

减小POY上油量;改用性能良好的POY油剂

Reduce the amount of POY oil; switch to POY oil with good performance

4

丝条在磨擦盘处的温度太高

The temperature of the thread at the friction plate is too high

降低第一热箱温度;增加冷却板冷却效果。

Lower the temperature of the first hot box; increase the cooling effect of the cooling plate.

5

丝条在磨擦盘处过度打滑

The thread is excessively slippery at the friction plate

降低D/Y丝,增加拉伸倍数,但同时测定DTY伸长,使之不低于设定值;增加磨擦盘数;改变摩擦盘表面的光洁度

Reduce the D/Y filament, increase the draw ratio, but simultaneously measure the DTY elongation so that it is not lower than the set value; increase the number of friction discs; change the surface finish of the friction disc

6

POY油剂的薄膜强度不够

POY oil film is not strong enough

用油膜剪切强度较高的POY油剂

POY oil with high oil shear strength


五、紧点(僵丝)/Tight point (stiff wire)

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

假捻度不合适

False twist is not suitable

在运转情况下,仔细观察。调整假捻度(167dtex的DTY假捻度最好在2700-2900捻/米)

In the case of operation, carefully observe. Adjust the false twist (the DTY false twist of 167dtex is best at 2700-2900 Twist/m)

2

进、出拉伸变形区的丝条速度波动

Thread speed fluctuation in the tensile deformation zone

调整拉伸倍数;清除摩托盘表面的粘污物

Adjust the draw ratio; remove the dirt on the surface of the mat

3

在加捻区,各单丝间有粘结现象,第二热箱内张力不足

In the twisting area, there is a bonding phenomenon between the individual filaments, and the tension in the second hot box is insufficient.

降低第一热箱温度;减少第二热箱内的超喂率;增加III罗拉的速度

Lowering the temperature of the first hot box; reducing the overfeed rate in the second hot box; increasing the speed of the III roller


六、松圈丝(Loose wire

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

拉伸倍数低

Low draw ratio

增加拉伸倍数

Increase the draw ratio

2

POY油剂的抗静电性差,磨擦力过大

POY oil has poor antistatic properties and excessive friction

更换POY油剂,增大丝条的抗静电性,降低磨擦系数;使POY上油均匀;检查导丝器、磨擦盘等是否正常

Replace the POY oil agent, increase the antistatic property of the thread, reduce the friction coefficient; make the POY oil evenly; check whether the yarn guide, the friction disc, etc. are normal.

3

第二热箱内张力过低

The tension in the second hot box is too low

降低超喂,提高III罗拉的速度

Reduce overfeed and increase the speed of the III roller

 

七、强度和伸度太低(Strength and elongation are too low

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

纺丝工段制得的POY不良

Poor POY made in the spinning section

检查POY的条干不匀率、强度、伸度是否符合要求;检查纺丝工段切片干燥效果,干切片的含水率应低于50ppm;POY的特性粘数不应低于0.62,切片干燥到纺丝卷绕,聚酯的特性粘数降应低于0.02;检查纺丝系统的导器是否擦伤丝条,卷绕是否正常

Check whether the unevenness, strength and elongation of POY meet the requirements; check the drying effect of the section of the spinning section, the moisture content of the dry section should be less than 50ppm; the intrinsic viscosity of POY should not be lower than 0.62, the slice is dried to the spinning Wire winding, the characteristic viscosity of polyester should be lower than 0.02; check whether the guide of the spinning system scratches the thread and whether the winding is normal.

2

POY的条干不匀率太高

POY's unevenness is too high

检查螺杆各区及熔体温度,将其调至最佳值;检查冷却吹风速、温度、相对湿度是否合适和稳定

Check the screw zone and melt temperature to adjust it to the optimum value; check the cooling blow speed, temperature, relative humidity and stability

3

POY含油率不均匀

POY oil content is not uniform

检查油剂上油系统

Check the oiling system

4

第一热箱内温度过高而损伤丝条

The temperature in the first hot box is too high and the thread is damaged.

逐步降低第一热箱的温度,每次降低5℃改善冷却板的冷却效果,使丝条进入假捻器时温度低于80℃

Gradually reduce the temperature of the first hot box, and reduce the cooling effect of the cooling plate by 5 °C each time, so that the temperature of the yarn enters the false twister is lower than 80 °C.

5

拉伸倍数过高

Stretch multiple is too high

降低拉伸倍数

Reduce the draw ratio

6

D/Y丝过大

D/Y wire is too big

降低D/Y丝

Reduce D/Y wire

 

八、假捻张力太低(False twist is too low)

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

位伸倍数太低

Position extension is too low

增加拉伸倍数,同时检查DTY的伸度是否为20%-30%

Increase the draw ratio and check if the DTY is 20%-30%

2

在第二热箱内,丝条收缩过多

In the second hot box, the thread shrinks too much

减少第二热箱内的超喂,增加III罗拉的速度

Reduce overfeed in the second hot box and increase the speed of the III roller

3

磨擦盘给予丝条的加捻力不合适

It is not suitable for the friction of the wire to give the thread

改变D/Y丝,以调节解捻张力的比值。当D/Y丝大于2.4时,则应改变磨擦盘间距,增加磨擦盘数或改用其他形式的磨擦盘

Change the D/Y wire to adjust the ratio of the untwisting tension. When the D/Y wire is larger than 2.4, the friction disc spacing should be changed, the number of friction discs should be increased or other types of friction discs should be used.


九、DTY断裂伸度太低(DTY fracture elongation is too low)

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

摩托盘损伤丝条

Motorized tray damage thread

改用表面光滑的磨擦盘

Use a smooth surface with a friction disk

2

倍伸倍数太高

Stretch multiple is too high

降低位伸倍数

Reduce the number of stretches

3

丝条在第二热箱内收缩太少

The thread shrinks too little in the second hot box

增加第二热箱内的超喂,降低III罗拉的速度

Increase the overfeed in the second hot box and reduce the speed of the III roller

4

卷绕张力太高

Winding tension is too high

降低卷绕速度,使167dtex的DTY最大卷绕张力为15cN

Reduce the winding speed so that the maximum winding tension of DTY of 167dtex is 15cN


十、卷缩率太氏(Crimping rate)

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

丝条在假捻器内温度太高

The thread is too hot in the false twister

降低第一热箱温度;增加冷却板的冷却效果

Lower the temperature of the first hot box; increase the cooling effect of the cooling plate

2

假捻度太低

False temperature is too low

稍稍增加拉伸倍数;增加磨擦盘数;提高D/Y丝

Increase the draw ratio slightly; increase the number of friction discs; increase the D/Y filament

3

第二热箱内丝条张力过高

The tension in the second hot box is too high

提高第二热箱内的超喂,降低III罗拉的速度

Increase the overfeed in the second hot box and reduce the speed of the III roller


十一、卷曲模量太低(The crimp modulus is too low)

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

在第一热箱内,变形后的定型不充足

In the first hot box, the deformed shape is not sufficient

提高第一热箱温度

Increase the temperature of the first hot box

2

拉伸倍数太低

The draw ratio is too low

增加拉伸倍数

Increase the draw ratio


十二、卷绕凸(Winding convex)

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

郑卷绕张力过大

Zheng winding tension is too large

增大卷绕角

Increase the winding angle

2

磨擦辊与卷绕筒子接触压力太高

The contact pressure between the friction roller and the winding bobbin is too high

降低磨擦辊与卷绕筒子之间的接触压力

Reduce the contact pressure between the friction roller and the winding bobbin


十三、卷绕螺旋边(Winding spiral edge)

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

卷绕筒管与中间丝层滑动

Winding bobbin sliding with intermediate wire layer

降低卷绕张力

Reduce winding tension

2

落丝时,筒管制动速度过快

When the wire is dropped, the bobbin brakes too fast.

增大卷绕角

Increase the winding angle

3

筒管架与磨擦辊未较水平,使卷绕筒子与磨擦辊接触不良

The bobbin holder and the friction roller are not horizontal, which makes the winding bobbin and the friction roller have poor contact

摩擦辊与筒管架较成平行

The friction roller is parallel to the bobbin holder

4

原因不明

unknown reason

降低拉伸变形加工速度,更换磨擦盘(或改变磨擦盘的材料)

Reduce the speed of the stretch deformation process, replace the friction disc (or change the material of the friction disc)


十四、卷绕蛛网丝(Winding spider web)

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

横动导丝器每次换向时不在同一位置

The traverse guide is not in the same position each time it is reversed

调换横动导丝器,修正槽筒沟槽换向点

Change the traverse guide to correct the groove groove reversal point

2

卷绕张力太高

Winding tension is too high

降低卷绕张力,增大欠喂率

Reduce winding tension and increase underfeed rate

3

卷绕角太大

The winding angle is too large

减速小卷绕角

Deceleration small winding angle

4

横动导丝器松动或损坏

The traversing guide is loose or damaged

调换横动导丝器

Swap traverse guide

5

筒管架与磨擦辊未较水平

The bobbin holder and the friction roller are not horizontal

磨擦辊与筒管架较成平行

The friction roller is parallel to the bobbin holder

6

筒管夹盘转动不灵或筒管有跳动

The bobbin chuck is not rotating or the bobbin is beating

除去夹盘中可能带入的废丝,增加其灵活性,更换筒管

Remove the waste wire that may be carried in the chuck, increase its flexibility, and replace the bobbin

7

磨擦辊表面有磨损

Friction roller surface wear

磨擦辊表面有磨损

Friction roller surface wear

8

横动导丝器干扰振幅太高

Traverse guide wire interference amplitude is too high

减小横动导丝器干扰振幅

Reduce the interference amplitude of the traverse guide


十五、卷绕叠圈(Winding stack)

 

序号

Serial number

原因分析

Cause Analysis

修正措施

Corrective action

1

横动导丝器的速度、干扰振幅和周期过小,导丝器与丝接触部分表面损坏

The speed, interference amplitude and period of the traverse guide are too small, and the surface of the wire guide and the wire contact part is damaged.

增大横动导丝器的速度、干扰振幅和周期,更换导丝器

Increase the speed, interference amplitude and period of the traverse guide, replace the yarn guide

2

磨擦辊中部表面有磨损

Wear on the middle surface of the friction roller

检查磨擦辊中部表面

Check the middle surface of the friction roller

3

筒管夹盘转动不灵

The bobbin chuck does not rotate.

较正筒管夹盘转动的灵活性

Flexibility to rotate the bobbin chuck