Method for controlling weft thread insertion timing in an air je

Details Method for controlling weft thread insertion timing in an air je Method for controlling weft thread insertion timing in an air je

1991-04-19

1992-04-28

Falik, Andrew M.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

1394352, D03D 4730

Patent

active

051079020

ABSTRACT:
The insertion of a weft thread into the loom shed through the weft thread insertion channel of an air jet loom is controlled in two phases in order to apply the proper weft thread acceleration to each type of yarn individually so that too slow insertions and too fast insertions can be corrected. Following a first acceleration, the starting point for the second acceleration is either advanced or delayed. When the weft thread arrives too late, the application of the second acceleration at a higher pressure than the first acceleration, is shifted forward to take place earlier. If the weft thread arrives too early, the application of the second acceleration is delayed to again compensate for achieving a proper arrival time of the weft thread at the exit end of the insertion channel. If the rated insertion time duration coincides with the actually measured insertion time duration, a correction is not needed.

REFERENCES:
patent: 4446893 (1984-05-01), Gunneman et al.
patent: 4967806 (1990-11-01), Imamura et al.
patent: 5031669 (1991-07-01), Wahhoud et al.

Affiliated with

Also associated with

Rating

Method for controlling weft thread insertion timing in an air je does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for controlling weft thread insertion timing in an air je, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for controlling weft thread insertion timing in an air je will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1241166