Parts by Brand FAQs

• Q: What can be the causes of warp breakage of Vamatex rapier loom?
  A: 1. Loom tension is improper.
  2. Automatic tension adjustment mechanism failure.
  3. Shed opening time is too early.
  4. Temple failure.
  5. Warp passage not smooth.
  6. Gripper head failure or fluff.
  7. Guide hook fluff.
  8. Warp passage mechanical position improper.
  9. Warp strength is poor.
  
• Q: How to set the timing of weft insertion and beating-up of Dornier rapier loom?
  A: According to actual measurement, the movement process of HTV8/S-220 gripper as follow—left gripper starts moving at 50°, enters shed at 75°, reaches the position of weft handover position at 190°, after weft handover starts to retreat at 200°, fully exits shed at 310°. Right gripper head stops after exiting the shed, enters shed at 40°, reaches the position of weft handover position at 170°, after handover starts to retreat at 190°, fully exits shed at 315°.
  The reed movement timing needs to serve the weft insertion, movement process of reed as follow--motionless angle 240°, from 60° to 300°; motion angle 120°, from 300° to 60°; beating-up motionless position is 0°, 0° to 60° is beating-up backward stroke, backward stroke angle is 60°, 300° to 360° is forward stroke, forward stroke angle is 60°.
  
• Q: For Dornier rapier loom with leno device, what are the daily check needs to be carried out?
  Q: 1. Position of creed stand.
  2. Function and cleaning of weft unwinding tension lamel.
  3. Function of weft cutter.
  4. Function of selvedge cutter.
  5. Function of leno device.
  6. Function of warp stop motion.
  7. Function of weft stop motion.
  8. Lubrication.