Clamp type arrangement for presenting weft threads to a gripper
AssigneeSulzer Rueti AG
InventorsAngelo Stacher, Theo Thalmann
Life of this patent
Estimating the term…
Abstract
A weft yarn presentation apparatus has a weft sequence control having weft thread presenting devices (1), a controlled thread clamping device (2) with several clamps (3a-3f) and a guide member (4) with a slit (5). The association of the weft thread presenting devices (1) with the clamps (3a-3f) guarantees that there is no cross-over of the tracks of the weft threads, and the displacement of the clamps in the reference plane (6) does not influence these tracks. The weft thread is presented to the gripper in the reference plane (6), through matching of the movements of the clamp and of the associated weft thread presenting device (1) so that contact between the weft threads is prevented.
Claims17
Apparatus for presenting weft threads for weaving on a rapier weaving machine comprising means for controlling the weft thread sequence including at least three weft thread presenting devices;
- a movably mounted weft thread clamp assembly having at least three weft thread clamps which are spaced apart in the direction of movement of the clamp assembly, means for moving each of the weft thread clamps into a reference plane, the clamps being spaced from the weft thread presenting devices and each clamp being associated and cooperating with a corresponding one of the weft thread presenting devices, the clamps and the weft thread presenting devices being arranged so that the weft threads extending between them are substantially parallel and do not cross each other;
- and a guide member which is stationary relative to and located proximate the thread clamp assembly and which has a slit aligned with the reference plane;
- whereby the clamp presents the weft threads for gripping without contacting each other.
A rapier weaving machine comprising means for controlling a sequence of weft threads including at least three weft thread presenting devices;
- a movably mounted weft thread clamp assembly having at least three weft thread clamps which are spaced apart in the direction of movement of the clamp assembly, means for moving each weft thread clamp into a weaving plane, the clamps being spaced from the weft thread presenting devices and each clamp being associated and cooperating with a corresponding one of the weft thread presenting devices, the clamps and the weft thread presenting devices being arranged so that the weft threads extending between them are substantially parallel and do not cross each other;
- and a guide member for the weft threads located proximate the thread clamp and having a slit aligned with the weaving plane;
- whereby the clamp presents the weft threads for gripping and contact between the weft threads is prevented.
Dependencies are inferred from the claim text.