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    4. Your location:Home  >  Textile knowledge

      Comprehensive analysis of common faults and troubleshooting methods of winder

      Author: Date:2020-01-10

             The quality of the product is the result of the combined effect of many factors. Under different conditions, the degree of each factor's effect is different, so the main and secondary factors must be distinguished in the analysis. Now let's talk about the common troubles of the winder and the troubleshooting methods.


      Bobbin do not turn


             At the time of normal winding, the bobbin unwinding is completed, the middle yarn detecting device detects and sends a signal, and drives the transmission mechanism to move the spinning insert seat to the empty tube conveyor belt and kick the empty yarn tube into the conveyor belt. The stepping motor passes the transmission. The lever causes the ratchet to rotate one tooth, and the bobbin magazine rotates a certain angle to fill the full yarn into the insertion spindle holder, and then the insertion spindle holder moves back to the working position.


      Because the ratchet part is blocked by velvet or filament winding, the ratchet cannot be driven by the pawl, so the failure of the yarn storehouse occurs. As long as the parts of the yarn storage are removed, the lint or loops can be removed to return to normal. When using compressed air for cleaning every week, as long as the cleaning is in place, this failure can be prevented.


      The bobbin is frequently withdrawn by the bobbin changing device


             Under the condition that the tube yarns are not uniformly dried out, the fault is caused by the soiling and failure of the surface of the middle yarn detecting device, as long as the detection surface is wiped clean. Regularly cleaning the detection part of the yarn detection device is the best way to prevent this failure.


      Scissors are not sharp


             If the scissors are not sharp enough to cut the yarn, the yarn sucked by the small suction nozzle will be folded into double yarns at the fixed suction nozzle, so that it will be cut when passing through the yarn clearer. This is repeated several times, resulting in abnormal production. And increase energy consumption. Remove the scissors part for maintenance and replace with a new pair of scissors. Do not discard the sharp scissors. They can be sent to a mechanical maintenance and processing workshop (machine repair workshop for short) to be sharpened and continued to be used.


      Tension device malfunctions


             The tension device provides proper tension to the yarn through the tension disc. The tension disc is divided into a pressure disc and a stationary disc. The stationary disk is fixed, and the pressure disk can move and swing axially. When the reel is wound in the pressure plate, its movement is blocked, which causes the tension to be unstable, the winding density to be uneven, and head breakage often occurs.


      When repairing, dismantle it according to the operating specifications and remove the debris such as loops.


      Large nozzle leaks air


             When the large suction nozzle is at the zero position, use a yarn to place it next to the large suction nozzle. If the yarn is sucked into the large suction nozzle, it means that the large suction nozzle leaks air. Air leakage from the large nozzle will not only cause waste of energy, but also make other parts with insufficient air pressure. Whether the large nozzle sucks air is determined by the large nozzle energy-saving trap on the damper. When the trap is opened, the large nozzle sucks air, otherwise it doesn't suck air. The large nozzle leakage is caused by the flaps being loosely closed by the cotton wool dust. Therefore, when the maintenance is performed, the damper should be removed, the cotton wool dust should be cleaned, and the drive to open the flap. Cylinder piston, apply sealing grease to achieve sealing and lubrication. After the air damper is installed, use the yarn again to check whether there is no air leakage, and make sure to repair one.


             The large nozzle leakage is caused by the flaps being loosely closed by the cotton wool dust. Therefore, when the maintenance is performed, the damper should be removed, the cotton wool dust should be cleaned, and the drive to open the flap. Cylinder piston, apply sealing grease to achieve sealing and lubrication. After the air damper is installed, use the yarn again to check whether there is no air leakage, and make sure to repair one.


      Unsuccessful splicing or splicing failure


             Splicing failure or splicing failure is caused by three reasons. First, improper process design and unreasonable splicing parameters. The second is that the position of the yarn lever is incorrect, and the yarn cannot be transferred into the splicer. Third, the splicer is inflexible due to lack of oil, the seal is leaking, the splicing cover is damaged or it fails to pop up.


             The first reason is that the splicing parameters can be changed due to human reasons, and then a splicing test is performed to check whether the splicing parameters are reasonable.


             Cause two, you can loosen the fixing screw on the yarn lever and correct the position.


             The third reason is often the cause, and it is also the focus of maintenance work. Maintenance can be carried out according to specific conditions, and if necessary, lubricate the moving parts.


      Yarn clearer failure


             The yarn clearer is another key component that affects the quality of the winder. Automatic winders usually use electronic yarn clearers, which are divided into photoelectric and capacitive types. Now take TK830 capacitive yarn clearer produced by LOEPFE company as an example to analyze it.


             If there is a mechanical wave in the bobbin, the yarn clearer will cut after a few revolutions of the grooved drum. At this time, changing the bobbin can resume normal production. When the yarn clearer fails, frequent shearing action occurs in a short time, so that production cannot be continued. The troubleshooting method is to reset the yarn clearer, and the reset times should be more than two times to ensure that the reset is accurate. If the reset is invalid, it can be concluded that the internal components of the yarn clearer are damaged and can be handed over to an electrician.


      Sleeve grip arm size collet is not flexible


             The big and small chucks on the bobbin holding arm are high-speed parts, and its rotation speed is close to the speed of the grooved bobbin, so the bearing wear failure often occurs. After the fault occurs, the package is difficult to rotate, the yarns are not evenly arranged, and an alarm will appear. As long as the bearing in the chuck is taken out and replaced with a new one, normal production can be resumed.


      Contact person: Hu bamboo shoots
      Fax: 86-511-86282666
      Mobile phone: (0) 13511683888
      Email: Sales@hengda-textile.com
      Address: Hengtang Town, Danyang City, Jiangsu, China

      ? Copyright Danyang Hengda Textile Co., Ltd. record number:蘇ICP備16016098號 Technical Support:ERUN

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