Device for cutting off a length of weft yarn during weaving on a weaving machine and a weaving machine provided with such a device
AssigneeN.V. Michel Van de Wiele
InventorsVincent Lampaert, Brecht Halsberghe
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Abstract
A device for cutting off weft yarn (27) during successive weaving cycles, comprising a cutting element (1) and a rotatable detaining element (2c), (13) which is forced to a detaining position by a spring force in order to detain the yarn and can rotate, under the influence of a tensile force exerted by a rapier on the detained yarn, counter to the spring force to a non-detaining position in which the yarn can be moved further towards the cutting element (1) in order to be cut. Such a device is efficient and can be made to be more reliable and more compact than existing devices. The invention also relates to a weaving loom provided with such a device.
Claims19
Device for cutting off a length of weft yarn inserted between warp threads during successive weaving cycles, comprising:
- a cutting element to cut the yarn and a detaining device to detain the yarn during its movement towards the cutting element until the yarn is allowed to pass through in the direction of the cutting element as a result of a tensile force which is applied thereto,
- wherein the detaining device comprises a rotatable detaining element which is forced to a detaining position on account of a spring force which is exerted by a spring element,
- wherein the detaining element is provided to detain the yarn in its detaining position and, under the influence of a tensile force on the detained yarn, to rotate counter to said spring force to a non-detaining position in which the yarn can be moved further towards the cutting element in order to be cut.
Dependencies are inferred from the claim text.