US 2021/0262127 A1Published application

Loom and Method for Guiding a Woven Fabric in a Loom

AssigneeLindauer DORNIER Gesellschaft mit beschraenkter Haftung

InventorsThomas LAUKAMP, Nicolas MEGA, Dirk JANICIJEVIC

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Abstract

The invention relates to various mutually combinable embodiments of a weaving machine or loom that comprises at least one guide device with at least one guide unit (32, 34) for the contacting guidance of a woven fabric (82) in the area of the weaving reed beat-up plane (14). In this regard, according to an embodiment, a control unit (15) is provided, which is embodied for controlling at least one drive (38, 39) for the at least one guide unit (32, 34), wherein for the actuation the control unit (15) processes informations that are related to the woven fabric structure in the area of the weaving reed beat-up plane (14), and/or informations regarding the position of the warp threads (80a, 80b) in the open loom shed. The invention also relates to methods for guiding a woven fabric in the area of the weaving reed beat-up plane (14).

Claims20

Dependent claims

Weaving machine (1), preferably gripper weaving machine, with a shed forming device (5) for opening and closing a loom shed (9) that is formed by a plurality of warp threads (80, 80a, 80b), with a weft insertion device (7) with a weft insertion means (8) for inserting weft threads through an open loom shed (9), with a weaving reed (10) for beating-up inserted weft threads against the woven fabric edge as well as with a drawing-off device (12) for drawing-off the woven fabric (82),

characterized by
at least one guide device (30) with at least one guide unit (32, 34), which extends at least partially over the woven fabric width and which comprises respectively at least one guide section (33, 35) that is positionable essentially in the woven fabric thickness direction (G) for the contacting guidance of the woven fabric (82) in the area of the weaving reed beat-up plane (14), wherein at least one upper guide unit (32) for guiding the woven fabric (82) on its top surface (84) and/or at least one lower guide unit (34) for guiding the woven fabric (82) on its bottom surface (85) are provided, and
a control unit (15), which is embodied for controlling at least one drive (38, 39), which is connected with the at least one guide unit (32, 34) for changing the position of at least one of its guide sections (33, 35) essentially in the woven fabric thickness direction (G), wherein the control unit (15), for the stated actuation, processes informations that are related to the woven fabric structure in the area of the weaving reed beat-up plane (14), and/or informations regarding the position of the warp threads (80, 80a, 80b) in the open loom shed (9).

Method for guiding a woven fabric (82) in a weaving machine (1), preferably a gripper weaving machine, wherein the method encompasses the following steps:

the woven fabric (82) is guided on its top and/or bottom surface (84, 85) in the area of the weaving reed beat-up plane (14) by at least one guide device (30), wherein the guide device (30) comprises at least one guide unit (32, 34), extending at least partially over the woven fabric width, with respectively at least one guide section (33, 35) that is positionable in the woven fabric thickness direction (G), wherein an upper guide unit (32) guides the top surface (84) of the woven fabric (82) and/or a lower guide unit (34) guides the bottom surface (85) in the woven fabric thickness direction (G),
a control unit (15) controls at least one drive (38, 39) connected with the at least one guide unit (32, 34) for changing the position of at least one guide section (33. 35) in the woven fabric thickness direction (G), wherein informations that are related to the woven fabric structure in the area of the weaving reed beat-up plane (14), and/or informations regarding the position of the warp threads (80, 80a, 80b) in the open loom shed (9) are provided to the control unit (15) for the stated actuation.

Dependencies are inferred from the claim text.