Claims
- 1. A method for reducing rise and flutter of a weft strand newly inserted into a shed by a gripper type inserting mechanism while weaving a fabric, said method comprising the steps of arranging a plurality of warp strands into two sheets, forming the sheets into a shed, introducing an end of a weft strand into an entrance end of the shed, withdrawing said weft end by the gripper type inserting mechanism from an exit end of the shed, and characterized by displacing the weft strand adjacent the exit end toward the fell of said fabric as the weft end emerges from said shed while both gripping said weft end in said inserting mechanism and constraining movement of said weft strand proximate to said entrance end to apply tension to the inserted weft strand and thereby remove slack therefrom, and beating down the weft strand against said fell.
- 2. A method according to claim 1 further comprising inserting a reed across the shed above said weft strand and such that dents on said reed enter between respective warp strands in each of said sheets from one side of the sheets before said beating down of the weft strand therewith, and withdrawing said reed from the shed and the dents on said reed from between the warp strands after said beating down of the weft strand.
- 3. A method according to claim 2 further comprising forming a subsequent shed from said sheets, introducing an end of another weft strand into an entrance end of the subsequent shed, withdrawing said end of another weft strand from an exit end of the subsequent shed, displacing toward said fell the other weft strand adjacent said end of another weft strand as it emerges from the subsequent shed, inserting a second reed across the subsequent shed above said other weft strand and such that dents on said second reed enter between respective warp strands in each of said sheets from the other side of the sheets, employing said second reed to beat down the other weft strand against said fell, and withdrawing said second reed from the subsequent shed and the dents on said second reed from between the respective warp strands.
- 4. A method according to claim 3 further comprising timing withdrawal of the first reed to occur after the second reed has been inserted between the warp strands in each of said sheets.
- 5. A method according to claim 4 further comprising shifting the warp strands in one of said sheets weftwise in one direction, and shifting the warp strands in the other of said sheets weftwise in the opposite direction, said shifting steps occurring between the shed forming steps.
- 6. A triaxial weaving machine comprising means for arranging a plurality of warp strands into two sheets, means for moving said sheets weftwise in opposite directions, means for forming said sheets into a shed, means for inserting an end of a weft strand into the shed from an entrance end and for withdrawing said weft end from an exit end of the shed, a reed having dents entering and exiting the shed for beating down said weft strand against the fell of a fabric being woven, means proximate said entrance end for constraining longitudinal movement of the weft strand, and characterized by a member located adjacent said exit end and movable from a normal position out of the path of said inserting and withdrawing means to engage and displace said weft strand adjacent the exit end toward the fell.
- 7. A weaving machine according to claim 6 further comprising positioning means for moving said member such that the member displaces said weft strand toward the fell before said weft strand is beaten down.
- 8. A weaving machine according to claim 7 wherein said positioning means moves the member to engage said weft strand substantially immediately after the end of said weft strand is withdrawn from the shed.
- 9. A weaving machine according to claim 7 wherein said means for inserting and withdrawing maintains tension on the weft strand during displacement pf said weft strand by said member.
- 10. A weaving machine according to claim 6 wherein said member comprises a finger.
- 11. A weaving machine according to claim 10 further comprising a fixed flucrum for said finger, and positioning means for moving the finger about said fulcrum such that the finger displaces said weft strand toward the fell before said weft strand is beaten down.
- 12. A weaving machine according to claim 6 further comprising positioning means for moving said member such that the member engages and moves said weft strand into a position adjacent the fell before said weft strand is released from the means for inserting and withdrawing.
- 13. A weaving machine according to claim 6 further comprising positioning means for moving said member such that the member engages and moves said weft strand toward the fell before the dents on said reed enter the shed.
Parent Case Info
This is a continuation - in part of application Ser. No. 730,230 filed Oct. 6, 1976, now abandoned.
US Referenced Citations (6)
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
730230 |
Oct 1976 |
|