How To Solve The Details?

< p > < strong > > a href= "http:// www.91se91.com/news/index_c.asp" > details < /a > /strong > /p >

When the P > FA306 drawing machine is driving, there will be details, and the variety of viscose is especially serious.

The causes of this problem are generally the following: carding and cotton web breaking and hole breaking; uncombed carding head and stop bars; large drawing distance between the two rollers; excessive suction under the strip; coarse and detailed mechanical waves caused by mechanical drawing; failure of self stopping devices for strip breakers; poor connection of the windlash wrapper; and the phenomenon of sticky, entangled, blocked, suspended and so on caused by improper temperature and humidity and product reversion.

At the same time, check whether the gear meshing is qualified, whether the roller connection is loose or not.

< /p >

< p > - DXS < /p >

< p > generally speaking, when the drawing is < a href= "http:// www.91se91.com/news/index_c.asp" > driving /a > details, the first thing to consider is whether the pmission key is loose or not. When the general key looses, the mechanical wave will appear on the spectrogram.

Secondly, consider whether tension drafting, guide bar drafting and strip drafting are too large.

To check whether the key of the pmission part is loose, the method is to hold the front roller with one hand, and the other hand to turn the pulley.

If there is a clear gap, the pmission part should be inspected, which may be key loosening, gear wear and other faults.

Ou Huai Lin < /p >.

Most of the details of < p > are caused by the problem of < a href= "http:// www.91se91.com/news/index_c.asp" > Mechanical < /a >.

Therefore, when there are rough details, the first thing to check is whether the machine is defective.

Under normal circumstances, most of the details of driving can be attributed to mechanical reasons, especially if there is no equipment equipped with frequency conversion devices, the probability of details is greater.

If it is clear that there is no problem with the machine and that several drawing frames have the same details of driving, then we should consider whether there is a technological problem.

< /p >

< p > according to the production experience, when the multi car appears the details of driving, or when there are no details in many devices, the possibility of the design of the process parameters in the critical state is the most likely. At this time, the possibility of improper process design should be considered first.

However, in actual production, the two causes of mechanical and technological processes may lead to the details of the details, which should be paid enough attention to.

-- syhdzy163 < /p >

< p > < strong > the weight difference of the drawing is < /strong > < /p >.

< p > weight eye difference is a common problem in drawing process.

The "barrel and symmetrical supply principle" of the carding machine feeding the first barrel drawing frame and the front road side bar to the rear road and the drawing bar is the key and foundation for reducing and eliminating the fluctuation of the carding weight, the difference of weight and weight, and the unevenness of the weight control.

If this is not done, the weight deviation and weight unevenness will not be mentioned. The problem of uneven weight and instability can not be fundamentally solved.

< /p >

< p > in the spinning workshop, drawing frames are not covered with clean door.

The air suction system of the drawing frame is the main means to adjust the weight difference. It is a small matter without the cover of the cleaning door, but the consequence is serious. It makes the control function of the suction air to the weight difference be basically lost, and the upper and lower flannelette flower clothes can not be sucked away. In addition, the adjustment of the width of the opening of the lower suction air regulating plate is not reasonable, which can also directly cause the weight difference between the two sides of the drawing frame.

< /p >

< p > because the lower suction motor is in the bottom wall panel of the vehicle tail, and there is a channel between the left and right sides of the suction channel, the upper suction opening is in the middle, and the left eye is close to the suction box, so the wind force is large and the right eye is far away, so the wind force is small.

In addition, the "roller belt" and the small distance between the front rollers will also cause poor suction. The tension of the guide belt is not enough, or the toothed belt is too serious to climb the teeth, and the cotton rollers are not parallel to the lower rollers or the operation is not flexible due to other reasons, which can directly cause the difference of output weight.

-- syhdzy163 < /p >

< p > the reasons for the difference in weight between the left and right eye of the drawing are mainly as follows: first, the pressure of the left and right cradles is not consistent; two, the diameter of the eyelid rolls is not the same.

Under normal circumstances, in order to solve the difference between the left and right eyes of the drawing process, the left and right eye spacing and pressure should be kept consistent, and the diameter of the roller should be the same as that of the roller.

-- DXS < /p >

< p > the problem of eye weight difference on the same platform is not only related to the lack of equipment in the guidance, installation and debugging of the drawing machine, but also closely related to the improper use of adjustment equipment in spinning mills.

比如，喇叭口過大、壓輥變形、壓輥軸承損壞、壓輥老化(有溝)、前壓輥加壓彈簧老化、壓輥加壓芯軸與加壓彈簧之間未加油都可能導致前后壓輥握持力部分喪失;集束器位置偏下或偏后，造成棉網中部分纖維直沖集束器內腔前壁，再沿徑向向后翻轉順后沿沖出;喂入條桶隨機擺放位置過遠，會造成對棉條的意外牽伸，應在地面上劃出條筒位置并監督教育擋車工正確操作;導棉環未處于水平狀態或兩分條器之間間隙過小等原因造成喂入棉條張力過大，造成棉條意外牽伸;單眼或兩眼皮輥直徑不同或超過使用極限，直接造成眼差;加壓彈簧超出規定期限，加壓芯軸變形等原因造成加壓不穩;加壓鉤對加壓位置發生傾斜不予修復或者蝶形彈簧片已經損壞;喇叭口直徑左右不一致或采用孔徑過大、過小;牽伸分配中的羅拉隔距輕重牙搭配不匹配，各張力調整不合理;壓力棒有變型、錯

The pressure bar adjustment ring is inconsistent or deformed; the experimental personnel sampling and weighing inspection methods are not standardized, often causing repeated errors and so on.

-- syhdzy163 < /p >

< p > < strong > the heating of the leather roller cap is less than /strong > /p >

< p > the cause of the heating of the strip roller cap is many: the coaxality of the roller is poor, the quality of the roller is not good; the pressure of the spinning is too high; for example, when the pressure of the old FA306 and FA306A drawing frame is too large, when the pressure is increased to 36 kg, there will be problems such as cradle deformation, roller shelling and deterioration of the index. When the current pressure is 28 kg (FA302), the situation has improved significantly. The main draft design is too large (that is, the rear area is too small); the quantity is too large, and the cotton layer is too thick (equivalent to increasing the pressure).

< /p >

< p > the heating of the roller does not generally affect the quality. But when the temperature is too high to exceed 30 ~40 centigrade at room temperature and feels hot, it must be solved in time.

Otherwise, not only will the roller be easy to age, but it will also directly affect the draft effect, and the NEP will also increase.

-- syhdzy163 < /p >