Back to results
US 6,293,314 B1Granted
Pile yarn selection system for gripper axminster weaving machines
AssigneeN.V. Michel Van de Wiele
InventorAndré Dewispelaere
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeN.V. Michel Van de Wiele
InventorAndré Dewispelaere
Estimating the term…
A selection system for pile yarns in a gripper Axminster weaving machine has a gripper associated with an elongated pile yarn carrier, and provided to position a number of yarn ends at mutual distance in the length direction of that carrier. Each pile yarn carrier is axially movable in its length direction to present a selected yarn to an associated gripper. A movable selection beam effects the axial movement of the pile yarn carriers, coordinated with the movement of the grippers, by protrusions and notches working together on the pile yarn carriers and on the selection beam. The engagement into each other of the aforesaid protrusions and notches can be selectively controlled in function of the yarns to be selected, in which the pile yarn carriers are predominantly horizontally disposed. The selection beam positively drives the pile yarn carriers in horizontal direction both in forward and in return movement. The pile yarn carriers can be brought and/or held in positions of rest by a vertical movement of the selection beam.
Method for selecting pile yarns in rapier Axminster weaving machines comprising providing rapiers, associating each rapier with elongated pile yarn holders for positioning a number of thread ends at mutual distance according to a length of each pile yarn holder, moving each pile yarn holder axially according to its length for presenting a selected thread to an associated rapier, effecting axial movement of the pile yarn holders by a movable selection beam, coordinating the movement of the pile yarn holders with a movement of the rapiers by means of protrusions and notches working together on the pile yarn holders and on the selection beam, selectively activating the engagement into each other of the protrusions and notches for selecting threads, disposing the pile yarn holders generally horizontally, positively driving the pile yarn holders in a horizontal direction forwards and backwards with the selection beam, bringing a part of the pile yarn holders into one or more recesses on a supporting table, and/or holding the pile yarn holders at rest by vertically moving the selection beam in a position of rest.
A device for selecting pile yarns in rapier Axminster weaving machines comprising rapiers, plural elongated pile yarn holders axially movable according to their length for positioning plural thread ends at mutual distance according to a length of each holder, the rapiers being associated with the pile yarn holders for taking up a selected thread end, a movable selection beam, protrusions and notches on the pile yarn holders and on the selection beam for mutually engaging each other and for moving the pile yarn holders, a mechanism for selectively activating engagement of the protrusions and notches into each other corresponding to the threads to be selected, the pile yarn holders being generally horizontally disposed on the selection beam, a driver for driving the pile yarn holders horizontally in forward and return movements, the selection beam being adapted to be movable in both horizontal and in vertical directions, a supporting table having one or more recesses are for receiving the protrusions of the pile yarn holders and for moving the pile yarn holders vertically and/or holding the pile yarn holders in a position of rest.
Dependencies are inferred from the claim text.