A1 Warp break shutdown
(1) Check whether the guide rail is fuzzed.
(2) Check whether the sword belt and the sword head are hairy and sharp.
(3) Check the warp height
a) Whether the sword head and the sword belt rub the upper and lower warp yarns.
b) Whether the warp collides with the reed (when the shaft is bent and dead center at 180 °)
(4) Check whether the menopause device and the swing door collide and whether the spring is loose
B1 Weft break shutdown
(1) Check whether there is weft shortage on the weft accumulator and correct the number of weft turns on the weft accumulator.
(2) Check whether the clamping force of the sword head is moderate.
(3) Check whether the sword entering time of the sword head and the scissors time of the weft shear match well.
The sword entering time is 70 ° ~ 75 °, and the first yarn enters the tissue side.
(4) Check whether the sword withdrawing time and the flat heald time match well (the sword withdrawing time is the same as the flat heald time, both of which are 295 ° ~ 320 °. Make the sword head retreat to the first warp beside the tissue at the corresponding angle)
(5) Check whether the tension of the weft tension sheet is moderate.
(6) Whether the falling time of the color selection Xuan is too late or too high, and whether the weft is located above the sword head and cannot enter the jaw when the let off sword head reaches the weft. If there is such a problem, you should adjust the height of the weft selector and rotate the loom to reach the yarn clamping position to check whether the yarn clamping position is correct.
(7) Check whether the weft feeding rapier head is deformed and whether the head has been tilted.
(8) Check whether the sword belt is seriously worn, so that the gap between the sword belt and the guide rail is too large, and the sword belt moves unsteadily and jumps up and down.
(9) Check whether the yarn clamping elasticity of the sword head is insufficient or improperly adjusted.
Check whether the weft yarn slips from the jaw after the sword head enters the shed. (turn the loom until the weft feeding rapier just enters the weaving opening, check whether there are sundries in the jaw, and pull the weft yarn by hand) if it is easy to fall off, adjust the clamping force of the jaw.
(10) Check whether the cutting time of the weft scissors is too early (generally between 75 ° ~ 80 °), that is, the weft has been cut off before it fully enters the weft feeding rapier jaw, so that the tension of the weft is reduced and it slips out of the jaw.
(11) Check whether weft pick-up error is caused by too small tension.
(12) Check whether the handover of sword sending and receiving is good. Turn the loom to the 180 position.
Check whether the position of the sword head is correct, and push the sword belt by hand to check its activity.
(13) Check whether the rapier head jumps at the joints on both sides due to the uneven guide rail.
(14) Check whether the rapier wheel and the rapier belt eyelet are seriously worn. The position of the sword head is unstable and the handover is poor.
(15) Check whether the weft falls from the jaw before being pulled into the shed due to wear of the jaw.
(16) Check whether the unclamping time of the unclipper is too late or the tail of the weft pick-up rapier is too long, which causes the weft to break when the weft is picked up again. The reason is that when there may be weft in the mouth of the weft pick-up rapier, the new yarn head cannot always be clamped firmly and slipped when the weft is picked up again.
