Weaving machine having a device for selecting the weft thread colour

Abstract

A weaving machine having a device (1) for selecting the weft thread colour is provided, by which individual weft threads of a number of provided weft threads are able to be fed to a gripper in a selected order, and which has a thread guide (4), by means of which the weft threads (2) fed by a weft accumulator are able to be fed to the device for selecting the weft thread colour. The thread guiding eyelets (6) of the device (1) for selecting the weft thread colour are brought into respective supply positions (10) by a first drive (8), wherein, in selected thread guiding eyelets (6), in each case at least one weft thread (2) is received in order to be selected and provided to the gripper (3) for weft insertion into a shed (11). By means of a supply needle (12) driven by a second drive (9) , the supplied weft thread (2) is brought into a transfer position to the gripper (3) via the supply position (10). Each thread guiding eyelet (6) of the device (1) for selecting the weft thread colour is open, at least in its supply position (10), towards the outer side (13), via which the respectively selected weft thread (2) is able to be supplied to the gripper (3) and is able to be transferred to the latter by means of the supply needle (12). The supply needle (12) guides the weft thread (2) without deflection out of the thread guiding eyelet (6) via the open outer side (13) thereof. The device (1) for selecting the weft thread colour has at least one colour disc (14) or an elongate element in which the thread guiding eyelets (6) are formed.

Description

technical field [0001] The invention relates to a loom having the features of the preamble of claim 1 with a weft thread color selection device. Background technique [0002] If weft yarns of different colors and / or different material properties are used in the production of multi-coloured fabrics, weft yarn color selection devices for weaving machines are required. However, the weft thread color selection device can also be used for monochromatic fabrics with the same weft thread material, in order to reduce the load on the bobbins, for example during weft removal. Such a weft yarn color selection device has been disclosed. The weft thread feeders used in projectile looms are distinguished by the fact that in some cases it is possible to design the feeders with up to 16 colors, but this presents an operational hindrance for the weaver, because especially The view to the guide yarn eye is not only obstructed, but often completely obstructed, or in practice the threading of...

AI Technical Summary

Problems solved by technology

The weft thread feeders used in projectile looms are distinguished by the fact that in some cases it is possible to design the feeders with up to 16 colors, but this presents an operational hindrance for the weaver, because especially Not only hinders, but often completely blocks the view of the guide yarn eye, or in practice prevents the threading of the weft thread, which can lead to wrong threading

[0003] In addition, the known weft thread delivery part also has the following disadvantages: the weft thread must be strongly deflected partially in the thread guide hole until it is delivered and transferred to, for example, the gripper , which can definitely cause damage to the weft yarn

The disadvantage of this known weft thread color selection device is that the rotatable weft thread ring is rotated relative to the fixed weft thread ring

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