Abstract: Crossbar for heald-carrying frames of weaving looms comprising a main element of the crossbar made, at least in part, of a light metallic material, such as aluminium, magnesium or alloys thereof; and a heald-carrying element made of a high-resistance material, such as steel. The heald-carrying element is steadily fastened to the main element of the crossbar by means of a lock joint, through plastic strain between a longitudinal rib projecting from the main element of the crossbar and a corresponding groove formed in the heald-carrying element.

Abstract: A control mechanism of a heald frame in weaving looms is disclosed, of the type comprising a frame hinged to an articulated linkage capable of converting the substantially rectilinear motion of a control bar into a vertical motion of the frame, characterised in that said bar is provided with a permanent magnet body and in that an electric-coil structure is further provided, in whose proximity said magnet body is intended to slide, fixed in respect of the loom and forming the armature of a linear electric motor of which the magnet body represents the mobile part. Some preferred arrangements of a plurality of such mechanisms in a weaving loom are further disclosed.

Abstract: Carrying gripper for weaving looms, of the type wherein a channel (5) is formed behind the gripper tip head (4), arranged on a substantially vertical plane parallel to the direction of the waiting weft threads, for weft thread entry in an inner area of the gripper and towards the elastic weft-gripping element (8, 9). The inlet (7) of the elastic gripping element is arranged on the bottom of the channel (5) and immediately downstream thereof, and a weft thread deflector (6) is arranged sideways to the inlet (7), on the opposite side with respect to the weft thread end connected to the fabric being woven. The deflector (6) delays entry of the weft thread in the gripping element (8, 9), thereby preventing advance gripping of thin wefts.

Abstract: An actuating assembly for a weaving loom includes at least a first motor for actuating the weaving mechanism with a dual power take-off, the two power take-off points being connected to two opposite sections of a main drive shaft able to move devices for actuating the weaving mechanism which are located respectively on the two sides of the loom.

Abstract: Weft carrying grippers (1, 2), of the type wherein the grippers are made of metal and are driven in their back-and-forth movements through the shed by carbon-fibre and/or polyester straps exclusively guided from outside the shed are both characterised by a metal shoe (3, 4) integrated in the gripper and projecting from the bottom thereof, near the tip, to which it is radiussed and in that the shoe (3, 4) has a large central recess (7, 8), designed to host the ends (12, 13) of the driving strap (10, 11), which is narrower than the rest of the strap and thinner than the recess (7, 8) of the shoe.

Abstract: A control mechanism of a heald frame in weaving looms is disclosed, of the type including a frame hinged to an articulated linkage capable of converting the substantially rectilinear motion of a control bar into a vertical motion of the frame, characterised in that the bar is provided with a permanent magnet body and in that an electric-coil structure is further provided, in whose proximity the magnet body is intended to slide, fixed in respect of the loom and forming the armature of a linear electric motor of which the magnet body represents the mobile part. Some preferred arrangements of a plurality of such mechanisms in a weaving loom are further disclosed.

Abstract: A device to acquire images of a fabric being woven on a loom includes at least one window (5) to define the visual field, the fabric being woven moving progressively adjacent to the window, and a sensing element (2) to acquire the image of the fabric, such components being positioned at the opposite ends of an optical path, the length of which is adjustable. The invention also includes a method for the quality control of the fabric, making use of the device.

Abstract: A method and system for the management of and assistance to weaving looms in the weaving premises includes, for each loom, a unit to control actuators, a set of operation sensors, and a logic a unit apt to correlate signals from the sensors with the control unit. The logic unit is connected, through communication elements, to a server of a service center common to various weaving premises. The server is interfaced to a client for the acquisition from and output to the weaving premises of loom data and for processing of diagnostic routines and of solutions to failures of the looms, and to database for the sorted storage of data and of diagnosis and solutions. The client is able to gain access into the database and compare data acquired from and output to the weaving premises to find solutions to the failures.

Abstract: A system for the management of and assistance to weaving looms in the weaving premises is described, and a method of assistance connected therewith, of the type comprising, for each loom, a unit to control actuators, a set of operation sensors, and a logic unit apt to correlate signals from said sensors with said control unit, said logic unit being connected, through communication means, to a server of a service centre common to various weaving premises, said server being interfaced to a client for the acquisition from and output to the weaving premises of loom data and for processing of diagnostic routines and of solutions to failures of the looms, as well as to a database for the sorted storage of such data and of said diagnosis and solutions, the client being able to gain access into said database so as to make comparisons with the data acquired from and output to the weaving premises to thereby find solutions to the failures.

Abstract: The present invention related to improvements in weft-carrying grippers for weft continuous feed weaving looms and in means for guiding their movement through the shed.