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WO-2026093635-A1 - IN-LINE TWISTING PROCESS AND MULTIDEVICE TWISTING MACHINE FOR CARRYING OUT SAME

WO2026093635A1WO 2026093635 A1WO2026093635 A1WO 2026093635A1WO-2026093635-A1

Abstract

The invention relates to an in-line twisting process and a multidevice twisting machine for carrying out same, based on imparting transient twist to each yarn (1) before it is woven, by means of twisting devices (4) situated between the creel or bobbin feeding the yarn (1) and the loom (200), knitting machine or weaving machine, such that the yarn (1) passes through the shaft of the needle (8) with sufficient twisting to gather the filaments. The yarn (1) is twisted in an S direction, Z direction or a combination of both directions and is controlled using a controller. The machine (100) comprises a frame (3) on which between 1 and 3000 twisting devices (4) are mounted, and a pneumatic, mechanical, hydraulic or electromechanical actuating system (5), configured to control the number of twists imparted by each twisting device (4).

Inventors

  • Galán Llongueras, Albert

Dates

Publication Date
20260507
Application Date
20251029
Priority Date
20241029

Claims (17)

  1. 1.- Online twisting process applicable to treating yarns (1) before being woven on a loom (200), needle knitting machines or other weaving machines, characterized by comprising applying a provisional twist to each yarn (1), before being woven, by including a twisting device (4) located between the creel or feed bobbin of said yarn (1) and said machine, such that the yarn (1) passes through the needle shaft (8) with sufficient twist to group the filaments.
  2. 2.- In-line twisting process, according to claim 1, characterized in that the twist of the twisting device or devices (4) is applied to the yarn (1) in the “S” or “Z” direction, or in a combination of both directions.
  3. 3.- Online torsion process, according to claim 1 or 2, characterized in that the amount of torsion applied by each torsion device (4) is controlled by a central unit
  4. 4.- Online twisting process, according to claim 5, characterized in that the twisting is programmed and controlled by a central unit that adjusts parameters such as the number of twists per meter from 2 to 2,000, applied to each yarn (1) by each twisting device (4), to adapt to the different types of yarn processed.
  5. 5.- Online twisting process, according to any of the preceding claims, characterized in that each twisting device (4) allows independent or joint regulation of the twisting parameters, that is, the degree of twist, the direction of rotation and the operating cycle, according to the characteristics of the yarn (1) to be processed.
  6. 6.- Online twisting process, according to any of the preceding claims, characterized in that the arrangement and number of twisting devices (4) varies according to the characteristics of the loom (200) or knitting machine concerned in each case.
  7. 7.- Online twisting process, according to any of the preceding claims, characterized in that the twisting device or devices (4) apply a false twist to the thread (1), so that it recovers its initial state.
  8. 8.- In-line twisting process, according to any of the preceding claims, characterized in that the twisting devices (4) are configured so as to minimize the accumulation of twist before the entry of the thread (1) into the needle (8), avoiding defects such as curls or knots in the thread.
  9. 9.- In-line twisting process, according to any of the preceding claims, characterized in that it comprises the use of more than one twisting device (4) inserted in series or in parallel on each thread (1) of the loom (200) or knitting machine.
  10. 10.- In-line twisting process, according to any of the preceding claims, characterized in that the combination of the twisting devices (4) with other twisting systems incorporated in the creel or feed bobbin of the yarn (1), consisting of a motorized creel or those that rotate the yarn bobbin (1) or those of a static bobbin by means of double twisting.
  11. 11.- Multi-device twisting machine (100), applicable for incorporation into a loom (200), a knitting machine or other weaving machine, between the creel or bobbin feed of said yarn (1) and said machine, characterized by comprising: - a frame (3) on which between 1 and 3000 twisting devices (4) are mounted, configured to apply twist to the yarn (1), in the “S” or “Z” direction or in a combination of both directions, before it enters the loom (200) or knitting machine, and - a drive system (5), pneumatic, mechanical, hydraulic or electromechanical, configured to control the amount of torque applied by each torque device (4).
  12. 12.- Multi-device torsion machine (100), according to claim 11, characterized in that each torsion device (4) comprises a torsion roller (4a) and a drive system (5)
  13. 13. Multi-device torsion machine (100), according to claim 11 or 12, characterized in that the frame (3) is adjustable to allow variation in the arrangement and number of twisting devices (4) according to the characteristics of the loom (200) or knitting machine.
  14. 14.- Multi-device torsion machine (100), according to any of claims 11 to 13, characterized in that each twisting device (4) is configured to allow independent regulation of the twisting parameters, i.e., the degree of twist, the direction of rotation and the operating cycle, according to the characteristics of the yarn (1) to be processed.
  15. 15.- Multi-device torsion machine (100), according to any of claims 11 to 14, characterized in that the drive system comprises an electric motor (5) that controls the speed and direction of the torque applied to each thread (1).
  16. 16.- Multi-device torsion machine (100), according to any of claims 11 to 15, characterized in that the twisting device or devices (4) is a false twisting system, with different thread guiding systems, clamps, Y-type, or others.
  17. 17.- Multi-device torsion machine (100), according to any of claims 11 to 16, characterized in that it comprises the incorporation of more than one twisting device (4) inserted in series or in parallel on each thread (1) of the loom (200).

Description

DESCRIPTION IN-LINE TORSION PROCESS AND MULTI-DEVICE TORSION MACHINE TO CARRY IT OUT OBJECT OF THE INVENTION The invention, as stated in the present descriptive memorandum, relates to an online torsion process and a multi-device torsion machine for carrying it out, which provide advantages and features, which are described in detail below. The object of the present invention lies, on the one hand, in an in-line twisting process for treating yarns before they are woven on looms or needle knitting machines, consisting of applying sufficient twist to group the filaments, achieving a compact and uniform shape, which increases the efficiency of the loom by preventing yarn breakage, a second aspect of the invention being a multi-device twisting machine for applying said in-line twisting process to treat the yarns before they are woven on looms or needle knitting machines, being specially designed to be coupled between the yarn bobbin creel or warper on warp, weft or other types of looms. This machine is specially designed to house one or more twisting devices, where each device causes the thread or threads passing through it to be temporarily twisted a certain number of turns/meter on their journey to the needle or heddle of what can be a weft, warp or other type of loom, such as a tufting machine or carpet making machine. By giving the yarn a twist, the regularity of the yarn is increased, avoiding many subsequent problems in the weaving process (loom, knitting machine, etc.), which cause breakage of yarns in the heddles or needles, in addition to the lack of quality in the final product, with said twist of the yarn increasing the efficiency and effectiveness of the loom. FIELD OF APPLICATION OF THE INVENTION The field of application of the present invention is framed within the textile sector, focusing particularly on the field of the industry dedicated to the manufacture of yarns and twisting devices, while also encompassing the field of looms and knitting machines for the production of fabrics. BACKGROUND OF THE INVENTION Currently, the warp threads that feed looms and needle knitting machines present several limitations when it comes to passing each individual thread or group of threads through the eye of its respective needle or heddle. These threads or groups of threads may be twisted or untwisted depending on the desired effect of the final fabric. When passing through the respective needle, there is a high probability of breakage of the thread and/or the corresponding needle or heddle if the thread becomes entangled with the needle or heddle due to a defect in the thread, such as a loop, a curl, or overfeeding because the thread is not sufficiently compact or round. This phenomenon causes the production efficiency of these machines to be very low due to the loom stops made by the operator and caused by this phenomenon, it is common to apply prior corrective measures to eliminate these problems as much as possible, focused on checking that the raw material that feeds these machines is manufactured with a prior twisting operation and in good regularity conditions, without knots, loops, etc. The multi-device twisting machine of the present invention restructures the current fabric production process, since the twisting operation is added online, which has not yet been done at present. This device is especially important for those machines and sectors that have to twist the yarn only so that it is compact and round during its passage through the needle or heddle, but where twisting is not necessary in the final application of the product to be obtained. This could be the case with warp knitting machines or tufting machines, Also called a tufting machine or tufting machine, these are used in the manufacture of carpets and artificial turf. In this sector, the yarn twisting section is simply to increase the loom's efficiency, but the final product does not require twisting, especially artificial turf. It should be noted that the twisting sections of carpet and/or artificial turf factories are just as large as those of looms, involving personnel, machinery, electricity consumption and physical effort. In the carpet industry, for example, BCF-type PP yarns (or textured continuous filament yarns made of polypropylene) are primarily used. Depending on the final product and its quality, these yarns are twisted using a double-twist (TFO) or 2x1 machine. Even in lower-quality products, other methods are used to group or compact the yarn, such as "tangle" systems. These systems use air or other means to fix the fiber bundle at regular intervals along the yarn. This groups the filaments and improves loom efficiency by reducing downtime and yarn breakage. The objective of the present invention is to replace all these TFO and/or tangle processes, among others, with an in-line twisting process using a multi-device twisting machine EXPLANATION OF THE INVENTION The online torsion process and the multi-device torsion machin