Abstract: The present invention relates to a sealing head for machines for heat treating threads, comprising a frame fixed to a pressurized chamber through which a conveyor belt passes, a pair of horizontal rollers placed on top of each other and pressed against the opposite faces of the conveyor belt and of seals to form a sealed closure between the rollers and the frame, at least one of the horizontal rollers and the seals being connected to the corresponding movement actuators. Sealing head characterized in that the actuators of the horizontal roller or rollers and the seals between the rollers and the frame are in the form of pneumatic actuators without pistons, namely of the balloon or bellows type.

Abstract: The present invention relates to a process and a device for texturing yarns for rugs or carpet, upstream of a heat treatment unit. Process characterized in that it consists essentially of or comprises making, downstream of a rack, on at least one yarn, at least one microtexturing operation using a microtexturing machine, then depositing the yarn obtained at the outlet of the microtexturing machine, in bulk or in loops, in a free state, onto an intermediate device for accumulation and transport, carrying the yarn obtained to a downstream heat treatment unit.

Abstract: A device for positioning the conveyor belt running through machines for thermal treatment of filaments, essentially constituted by a pressurized chamber (1) traversed by a conveyor belt (2) enclosed at each end by a sealing head mounted on a frame or movable door (3) connected to the pressurized chamber (1) by a bellows (4), each sealing head including a head of horizontal superposed rollers (5, 6) which are pressed against the opposite surfaces of the conveyor belt (2). The device includes a positioning elements (8) and a position control elements (9) acting on a very short region immediately adjacent each sealing head. The invention is more particularly applicable in the field of the textile industry, in particular of the field of treating filaments by elements of thermal treatment machines currently called heat setting machines.

Abstract: The present invention relates to a process and a device for texturing yarns for rugs or carpet, upstream of a heat treatment unit. Process characterized in that it consists essentially of or comprises making, downstream of a rack, on at least one yarn, at least one microtexturing operation using a microtexturing machine, then depositing the yarn obtained at the outlet of the microtexturing machine, in bulk or in loops, in a free state, onto an intermediate device for accumulation and transport, carrying the yarn obtained to a downstream heat treatment unit.

Abstract: Thread-crimping machines with enhanced throughput are detailed. One or more drive rolls forming parts of the machines may be grooved to group centrally the entering threads without materially adversely impacting driving and crimping operations of the machines. Thread-focusing components also may be employed upstream of the inlet areas.

Abstract: A thread accumulation device includes a discharge chute (13) for receiving and guiding a strand that is formed by a thread take-up device and a carriage for taking up a thread spiral, guided on the discharge chute (13) and resting on the end of the strand of the side that is opposite to the thread take-up device. At the outlet of the thread take take-up device, the discharge chute (13) is equipped with a transport unit (16) that adapts to the inside shape of the discharge chute (13). The invention can be applied more particularly in the field of the textile industry, in particular the treatment of thread.

Abstract: Process for treating threads by knitting-unraveling includes: knitting several individual threads (2) on a multi-feed knitting machine (1); carrying out one or more heat, chemical or other treatments, in one or more chambers (7); carrying out, in an unraveling unit (4), an unraveling with pulling on the first knit thread and winding or beaming the unraveled threads (2) individually or carrying out on these individual threads another treatment operation or a production operation, optionally with an intermediate accumulation of the threads. The invention can be applied more particularly in the field of the textile industry, in particular the treatment of threads, particularly texturing by knitting-unraveling.

Abstract: A thread accumulation device includes a discharge chute (13) for receiving and guiding a strand that is formed by a thread take-up device and a carriage for taking up a thread spiral, guided on the discharge chute (13) and resting on the end of the strand of the side that is opposite to the thread take-up device. At the outlet of the thread take take-up device, the discharge chute (13) is equipped with a transport unit (16) that adapts to the inside shape of the discharge chute (13). The invention can be applied more particularly in the field of the textile industry, in particular the treatment of thread.

Abstract: Process for treating threads by knitting-unraveling includes: knitting several individual threads (2) on a multi-feed knitting machine (1); carrying out one or more heat, chemical or other treatments, in one or more chambers (7); carrying out, in an unraveling unit (4), an unraveling with pulling on the first knit thread and winding or beaming the unraveled threads (2) individually or carrying out on these individual threads another treatment operation or a production operation, optionally with an intermediate accumulation of the threads. The invention can be applied more particularly in the field of the textile industry, in particular the treatment of threads, particularly texturing by knitting-unraveling.

Abstract: The present relates to a device for positioning the conveyor belt running through machines for thermal treatment of filaments, essentially constituted by a pressurized chamber (1) traversed by a conveyor belt (2) enclosed at each end by a sealing head mounted on a frame or movable door (3) connected to the pressurized chamber (1) by means of a bellows (4), each sealing head comprising a head of horizontal superposed rollers (5, 6) which are pressed against the opposite surfaces of the conveyor belt (2). Device characterized in that it comprises a positioning means (8) and a position control means (9) acting on a very short region immediately adjacent each sealing head. The invention is more particularly applicable in the field of the textile industry, in particular of the field of treating filaments by means of thermal treatment machines currently called heat setting machines.

Abstract: A sealing head for machines for the thermal treatment of filaments, includes a frame (1) fixed to a pressurized chamber traversed by a conveyor belt, a pair of superposed horizontal rollers (2 and 3), which are pressed against opposite surfaces of the conveyor belt, and sealing elements (4 and 5) to form a sealed closure between the rollers (2 and 3) and the frame (1). The sealing elements (4 and 5) to form a sealed closure between the rollers (2 and 3) and the frame (1) are each provided with integrated lubricating elements (4?, 5?), under pressure or by capillarity. The invention is more particularly applicable to the field of the textile industry, in particular the treatment of filaments by thermal treatment machines presently called thermofixation meachines.

Abstract: A process for automatically removing packages in a winding station of a yarn winding machine, having elements (1) for holding and disengaging a full package (2), a winding guide (3) guiding the yarn to be wound during winding, a bar (7) for disengagement from the winding guide (3), a package drive (4), heads (5) for gripping and holding the spool (6) and a device (8) for supplying the station with spools (6). The process includes providing, during each removal cycle, a relaxation of the tension of the supply yarn, then restarting a new winding cycle after completing the removal cycle. The invention is more particularly applicable to the field of the textile industry, in particular machines for winding yarns.

Abstract: A winding machine, essentially constituted by individual winding stations disposed in stages which are controlled, at the level of each stage, by an assembly of drive shafts of packages and drive shafts of fliers, the yarns being supplied by a pre-feed device for its yarns. The winding machine is transformable on site and has a device for operating the drive elements of the drive shafts of the packages, the drive shafts of the fliers, and of the pre-feed device, the yarns being possibly mounted as desired in an interchangeable manner at the two ends of the winding machine, by symmetrical end plates or flanges, with arrangement in the front, of the conveyor which passes through them.

Abstract: Device for gripping a package, in particular for yarn winding machines, is constituted by two lateral arms each provided at its free end with a spindle for mounting a tube of a package, movably mounted by their other end on a slide way for support and mounting on a winding machine and actuated to open and close by a jack, the mounting of each lateral arm on the slide way for support and mounting on the winding machine being carried out by an axle secured to the slide way and coacting with an oblong hole in the lateral arm. The slide way is moreover provided with abutments for guiding and limiting the path, which coact with the corresponding end of the lateral arms during opening and closing of the lateral arms.

Abstract: A winding machine, essentially constituted by individual winding stations disposed in stages which are controlled, at the level of each stage, by an assembly of drive shafts of packages and drive shafts of fliers, the yarns being supplied by a pre-feed device for its yarns. The winding machine is transformable on site and has a device for operating the drive elements of the drive shafts of the packages, the drive shafts of the fliers, and of the pre-feed device, the yarns being possibly mounted as desired in an interchangeable manner at the two ends of the winding machine, by symmetrical end plates or flanges, with arrangement in the front, of the conveyor which passes through them.

Abstract: Device for gripping a package, in particular for yarn winding machines, is constituted by two lateral arms each provided at its free end with a spindle for mounting a tube of a package, movably mounted by their other end on a slide way for support and mounting on a winding machine and actuated to open and close by a jack, the mounting of each lateral arm on the slide way for support and mounting on the winding machine being carried out by an axle secured to the slide way and coacting with an oblong hole in the lateral arm. The slide way is moreover provided with abutments for guiding and limiting the path, which coact with the corresponding end of the lateral arms during opening and closing of the lateral arms.

Abstract: A process and a device for operating a synchronous winding machine, includes an assembly of shafts for driving packages, shafts for driving fliers and a device for pre-feeding yarns. The process comprises controlling with an electronic device a driving in synchronism of the pre-feeding device and the drive shafts of packages, as well as drive shafts for the fliers of packages, with adjustment or variation of the angle of crossing of the yarns by wobulation or electronic scrambling/jamming or by any other signal of variation of the angle of crossing. The invention is most particularly applicable to the field of the textile industry, in particular winding machines for yarns and particularly synchronous winding machines.

Abstract: A machine for tucking, labelling and palletizing spools at the outlet of winders or other machines producing spools of threads and the process practiced by this machine. The machine includes a station for positioning spools at the outlet of a winder or other machine producing spools and cutting the tag end of the thread, a robot or the like for grasping the spool, for supplying a turning plate and for unmounting the spools from the turning plate and palletizing them, a device for grasping, positioning, holding and cutting the length of the tag end of thread, a portion for needle tucking, or the like, and a labelling station, all of these stations an devices being computer controlled.

Abstract: The present invention relates to a machine for tucking, labelling and palletizing spools at the outlet of winders or other machines producing spools of threads and the process practiced by this machine.

Abstract: The present invention relates to a process for the continuous dyeing of cellulose fibre yarns with reactive dyes and to an apparatus for carrying out this process.The process essentially comprises steps of impregnating yarn which has been continuously unwound at high speed from one or several supports (1) and rewound onto one or several supports (3) with at least one fibre-reactive dye in aqueous solution and at least one alkaline reagent in aqueous solution, andfixing the dye.The invention can be applied especially in the technical field of dyeing cellulose fibres.