weaving machine

  Major Problems and Solutions in Rapier Loom Weaving(5) 32. In rapier loom weaving, the cloth surface will sometimes turn out one side rough and backside smooth. What is the cause of this? How to prevent it? Cause: This situation is easy to occur on the loom with ordinary guide hooks. The heald frame is hoisted too low, and the lower warp sheet scrapes rapier race board. The bottom of the gripper head gripper tape is worn with burrs. Precaution: Adjust the height of the warp leveling line. Check and exchange the gripper head and tape. Try to arrange production on rapier looms with floating guide hooks. 33. When the rapier loom is weaving fine tex high-density fabric, sometimes irregular and broken defects appear on the cloth surface. The flaws may not be easily found during grey fabric inspection but will become evident after finishing. Why? How to solve it? Cause: Rapier looms generally use equal tension sheds. If the loom tension is too high and the weft yarn is too thin, the streng

  17. What are the reasons for feeding errors on  rapier looms ? There are scattered piles and debris in the feed clamp, and the clamp cannot hold the weft effectively. The filling cut time is too early, the filling into the filling clamp is not deep enough, and the filling feed clamp force is too small. The weft tension is unreasonable and the clamping force of the clamping device is too small. 18. What is the reason for the waste yarn to be woven into the fabric? Waste side heald frame leveling time too late. The weft separates from the splice too late, resulting in too long waste edges.When the clipper enters the shed again, the waste yarn is carried to the next weave. The number of ends through the waste side heald frame is not enough, and the waste side is not effectively captured. 19. What is the reason for the temple pattern on rapier looms? The warp is embedded in the mirror leg between the copper ring, copper ring block, rotation is not flexible. textile weaving machines manuf

  26. Why does a rapier loom produce motion traces even though it has an automatic matching device? And how to prevent it? The reason: Improper choice of operation mode. Abnormal let-off and coiling action. Some special fabric patterns, such as basket pattern, fancy basket pattern, etc., due to the reason of organization, the structure is loose and tight, and there will still be traces of movement after stopping. Prevention: According to the fabric pattern to choose the appropriate operation mode. Check whether the let-off and take-up are normal. Reduce the setting tension appropriately. Delay shedding time appropriately. 27. What causes colored hair and fibers to be woven into fabrics? How to prevent it? The reason: Dyed yarn goes through multiple production processes; More process leads to more wear and tear. So color yarn hairiness more. Dyeing yarn color fastness is poor, colored yarn in the slurry tank decolorization, stained with white or light colored yarn. Product process desig

  Main problems and solutions in rapier loom weaving（2） 9. Why do the sword belt and sword head squeeze the warp thread when inserting the weft? In order to ensure the smooth connection of the weft thread, the looper should be moved for a long time in the shed, but the shed should not be opened for long. The longer the idle time, the shorter the movement time of the heald frame. The acceleration of the heald frame movement increases and the impact force becomes great, which is not conducive to the stability of the loom. Therefore, before the strip and the shed end leave the shed, the heald shaft has started to close and the strip and the strip cause a strong compression of the closed warp. 10. Why is the side chain easy to loosen? What are the effects of weaving? How can you prevent it? The warp threads on the outfeed side can be easily loosened, as the shuttle head and the elastic fabric tape strongly squeeze the warp pieces at the shed exit, which leads to unclear openings and increa

  Main problems and solutions in rapier loom weaving（1） 1. How to configure the shed opening time and weft insertion time of rapier loom? The filling insertion time of rapier loom -- the time for the feeding projectile and the receiving projectile to enter the shed -- is basically fixed.The opening time is mainly determined by the characteristics of the fabric and the clarity of the shed.General plain weave fabrics should be configured early doffing, which is conducive to beating up, reducing the movement of falling cloth, and improving the fabric quality.Twill and jacquard fabrics should be configured to fall off, not only to meet the appearance of the fabric, but also to reduce the rate of breakage. weaving loom parts. 2. What is the impact of opening time on the quality of fabric? Start early, shed clear, weaving defects will be less.However, when opening the shuttle early and closing the mouth early, the rapier extrusion of the warp is more severe, and the fabric and the edge warp