摘要:
A weaving machine includes a shed forming device, a weft insertion device, and a weaving reed that beats up the weft threads at a beat up plane against an edge of the woven fabric. A guide device extends over a width of the woven fabric and is driven by a drive, the guide device being one or both of an upper guide unit that contacts a top surface of the woven fabric or a lower guide unit that contacts a bottom surface of the woven fabric. One or both of the upper and lower guide units are positionable in a direction of thickness of the woven fabric to contact and guide the woven fabric in an area of the beat up plane. The guide section of one or both of the upper and lower guide units has a profiled shape in a weft direction to guide the woven fabric at different thicknesses in the weft direction.
摘要:
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).
摘要:
A weaving machine for producing a woven fabric has a shedding device to form a loom shed of warp material, a weft insertion device for inserting a preferably tape-shaped or band-shaped weft material into the loom shed, a drawing-off device for drawing off the finished fabric in a drawing-off direction, fabric movement device for moving the fabric back and forth in the warp direction to bring the last inserted weft material into contact with the binding point or fabric edge. A shed limiter device limits the opening of the loom shed from above and below the warp, and is movable back and forth in the warp direction. The shed limiter device only loosely bounds the fabric and essentially without actively clamping or pinching or contacting the fabric and/or the last inserted weft material, at least while moving in the direction opposite the drawing-off direction.
摘要:
A fabric spreader arrangement for a loom includes a spreader rod rotatably received in a hollow space of a spreader body. The fabric is looped around the spreader rod in the hollow space. To achieve a low wear, a light weight, and an excellent fabric spreading effect, the spreader rod is a one-piece hollow cylindrical metal body extending entirely over the weaving width, preferably made of V4A stainless steel, having an outer diameter of at least 10 mm (and preferably 15 mm) with a wall thickness of at least 0.4 mm (and preferably 0.7 mm), and having an outer circumferential surface that has been surface treated to achieve a surface roughness with a peak-to-valley roughness measurement of at least 10 μm (and preferably 20 to 50 μm).
摘要:
A retoolable spreader table for an air loom has a trough-shaped cross-section. The spreader table has a projection pointing substantially toward the center of the weft thread insertion channel of a weaving reed. The projection forms with its upper side a support surface for the fabric. The spreader table is equipped with a first spreader element or forward spreader element positioned at the spreader table inlet and a second spreader element positioned at the outlet of the spreader table. A fabric detour element is positioned between the forward and rearward spreader elements in such a way that a slot is formed between the inlet spreader element (8) and a free end of the trough-shaped detour element (12). The fabric slot (16) has a free passage width that is variable, depending on the diameter (D) of a spreader rod (15) that is carried by the fabric (7) in a rotating manner and that is easily insertable into the space encircled by the trough table (1) and the detour element (12). This space can be opened for exchanging the rod (15) against another rod with a different rod diameter.
摘要:
An air jet weaving loom is equipped with at least one expander element and a spreader table, whereby the spreader table surrounds a spreader in a trough and has an extension (8) in a forward fabric guidance area pointing toward the middle of a weft thread insertion channel, so that the top surface of the extension increases the fabric supporting surface of the spreader table. One expander element (20) is located in the spreader table (7) in a transition region between an edge of the trough of the spreader table (7) and the extension (8). Another expander element (21) may be located along an exit edge of the trough of the spreader table. Both expander elements (20, 21) have a fabric expander profile that extends at least along the margin zones of the fabric.
摘要:
A temple for holding or lateral tensioning of fabrics in looms, characterized in that it is formed of at least two mutually parallel temple rollers of which the tangential plane is situated in the weaving plane, and an angularly adjustable middle batten is situated between the temple rollers. The angularly adjustable middle batten has one of its ends below the weaving plane of the loom and its other end displaced from the weaving plane.