As the last process of spinning and the first process of weaving, winding plays the role of a “bridge” connecting the previous and the following, and therefore occupies an important position in the textile field. When the winding machine fails, the cause of the failure and its solution should be found out based on the primary and secondary factors.
The bobbin library does not Turn
During normal winding, the bobbin unwinding is completed, the middle yarn detection device detects and sends a signal, and the driving transmission mechanism moves the yarn insertion spindle to the empty tube conveyor belt and Kick the empty bobbin into the conveyor belt. The stepper motor makes the ratchet rotate one tooth through the transmission rod, and the bobbin library rotates to a certain angle, filling the full yarn into the yarn insertion spindle base, and then the yarn insertion spindle base moves back to the working position.
Because the ratchet part is blocked by lint or waste yarn, the pawl cannot drive the ratchet to rotate, so the yarn library does not rotate. As long as the parts of the yarn library are disassembled and the lint or waste yarn is removed, the system can return to normal. This failure can be prevented by doing the weekly cleaning with compressed air.
The bobbin is frequently withdrawn by the bobbin changing device
This fault It is caused by the surface of the middle yarn detection device being contaminated and malfunctioning. Just wipe the detection surface part clean. Regular cleaning of the detection part of the yarn detection device is the best way to prevent this kind of failure.
The scissors are not sharp
The yarn cannot be cut if the scissors are not sharp. , then 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 normal production and increased energy consumption. During maintenance, remove the scissors part and replace with a new pair of scissors. Do not throw away scissors that are not sharp. They can be sent to a mechanical repair and processing workshop (referred to as a machine repair workshop) to be sharpened and then used again.
The tension device is not functioning properly
The tension device provides appropriate tension to the yarn through the tension disk. Tension discs are divided into pressurized discs and static discs. The stationary disc is fixed, and the pressurized disc can move axially and swing. When the pressure plate is wrapped with waste yarn, its movement is blocked, resulting in unstable tension, uneven winding density, and often broken ends. During maintenance, it is necessary to disassemble according to the operating specifications and clean away the waste wire and other debris.
The large suction nozzle leaks air
When the large suction nozzle is in the zero position When using a yarn, 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 is leaking air. Air leakage from a large suction nozzle will not only waste energy, but also cause insufficient air pressure in other parts. Whether the large suction nozzle absorbs air or not is determined by the large suction nozzle energy-saving flap on the damper. When the flap is opened, the large suction nozzle will suck air, otherwise it will not suck air. Air leakage from the large suction nozzle is caused by the flap being blocked by lint and dust and not being tightly closed. Therefore, during maintenance, the air door must be removed, the lint and dust must be cleaned, and the cylinder that drives the flap open must be removed. Apply sealing grease to the piston to achieve sealing and lubrication. After the damper is installed, use yarn to check again whether it is really tight and make sure that each one is repaired properly.
The twisting fails or the twisting fails
The twisting fails Failure or splicing failure can be caused by a variety of reasons. First, the process design is improper and the splicing parameters are unreasonable. Second, the position of the yarn dialing lever is incorrect and the yarn cannot be dialed into the splicer. Third, there is lack of oil in the splicer, the rotation is inflexible, the sealing ring is leaking, and the splicing cover is damaged or fails to spring up. The first reason is that the splicing parameters can be changed due to human factors, and then a splicing test can be performed to check whether the splicing parameters are reasonable. The solution to the second reason is to loosen the fixing screw on the yarn pulling rod and correct the position. Reason three is a common phenomenon and is also a key part of maintenance work. Therefore, maintenance can be carried out according to specific conditions. If necessary, lubricating oil can be added to the moving parts.
Yarn clearer failure
The yarn clearer affects the winding Another key component of quality. Automatic winding machines usually use electronic yarn clearers, which are divided into two types: photoelectric and capacitive. Taking the TK830 capacitive yarn clearer produced by LOEPFE as an example, if mechanical waves appear in the bobbin, the yarn clearer will cut after the drum rotates several times. At this time, the bobbin can be replaced and normal production can be resumed. When the yarn clearer fails, frequent shearing will occur in a short period of time, making it impossible to continue production. The troubleshooting method is to reset the yarn clearer. The number of resets should be more than two times to ensure that the reset is accurate. If the reset is ineffective, it can be concluded that the internal electronic components of the yarn clearer are damaged and can be handled by an electrician.
The size of the yarn holding arm and the chuck rotation are not flexible
The large and small chucks on the yarn holding arm are high-speed parts, and their rotational speed is close to the speed of the groove drum, so bearing wear failures often occur. After a fault occurs, it is difficult for the bobbin to rotate and the yarn is unevenly arranged, and an alarm prompt will appear. As long as the bearing in the chuck is taken out and replaced with a new one, normal production can be resumed. </p
