TH40423A - Methods for winding synthetic fibers, synthetic fiber winding machines, and methods for using yarn packaging. - Google Patents

Abstract

DC60 (25/11/42) The purpose of this invention is to allow yarn to be wound around a bobbin without the bundling of the yarn ends at a high yarn throughput from one bobbin to the next for various yarns of different thicknesses, lubricants used, etc., while simultaneously preventing the yarn ends from breaking into individual strands and easily and consistently forming the correct yarn end length. This requires no work in removing yarn end bundling and can enable a consistent winding process. This objective can be achieved by methods and machines for winding synthetic fibers, in which the yarn is wound around an empty bobbin using a yarn winder assembled with a pivot guide for passage, a passage device, a contact roller, two spindles, a spindle movement device, and a yarn guide for guiding the yarn into the yarn clamping section, where the yarn guide is assembled with an upper yarn passage guide, a lower yarn passage guide, and a bundling guide surface. The ends of the yarn, each positioned at the origin and destination of the empty bobbin in the direction of yarn movement, are uniquely positioned so that the yarn is moved outside the passage width to be kept nearly parallel to the yarn fastening section by the upper and lower yarn passage guides. At least one of the guides is pressed against the empty bobbin, at least one of the guides is moved toward the yarn fastening section, and is secured and cut by the yarn fastening section. The yarn fastening position is allowed to move in the direction of rotation of the empty bobbin opposite to the direction of yarn movement. The yarn is allowed to automatically release its entanglement from the upper yarn passage guide and move straight toward the center of passage without the formation of a bundle of yarn ends that were initially straightened. Once the yarn is entangled with the passage guides, normal winding begins. The purpose of this invention is to allow the yarn to be wound around the bobbin. Without the need to bind the ends of the yarn, a high yarn throughput from one bobbin to the next is achieved for various yarn types with different thicknesses, lubricants used, and other factors. Simultaneously, the yarn ends are prevented from unraveling into individual strands, and the correct and consistent yarn end length is easily formed. This requires the task of removing yarn end bundling and ensuring a consistent winding process. This objective can be achieved by methods and machines for winding synthetic fibers, where the yarn is wound around an empty bobbin using a winding machine assembled with pivot guides for passage, passage devices, contact rollers, two spindles, spindle movement devices, and yarn guides for guiding the yarn into the yarn clamping section. The yarn guides are assembled with upper yarn passage guides, lower yarn passage guides, and bundling surfaces, each positioned at the origin and destination of the empty bobbin in the direction of yarn movement, with the specific characteristic that the yarn is moved outside the passage width. To be kept almost parallel to the yarn holding section, the upper and lower yarn guides are pressed against the empty bobbin by at least one of the guides, moved toward the yarn holding section by at least one of the guides, and secured and bent by the yarn holding section. The yarn holding position is allowed to move in the direction of the empty bobbin's rotation opposite to the direction of yarn movement. The yarn is allowed to automatically release its entanglement from the upper yarn guide and move straight toward the center of passage without the formation of a bundle of yarn ends that were initially straightened. Once the yarn is entangled with the yarn guides, normal winding begins.

Claims (37)

1. Method for winding synthetic fibers: The yarn is wound around an empty bobbin using a yarn winder assembled with a pivot point for yarn movement. The movement device for yarn passage before winding includes contact rollers that create a pre-defined surface contact with the wound yarn. Two selectable spindles are used for yarn winding. A yarn movement device continuously transfers the yarn from the upper winding spindle to the upper preparation spindle, and a yarn guide device guides the yarn into the yarn clamp for stretching. The yarn guide device consists of an upper yarn guide mechanism at the source of the empty bobbin, mounted around the upper winding spindle; a lower yarn guide mechanism at the destination; and a yarn movement control mechanism to regulate the movement of the yarn extending into the wound yarn package towards the preparation side. This includes a process of sliding the yarn outside the normal movement area to maintain yarn stability. To be positioned almost parallel to the yarn stretching section by the upper and lower yarn transmission mechanisms; to move the yarn towards the stretching section by at least one of the upper and lower yarn transmission mechanisms, allowing the yarn to be clamped and cut by the stretching section; to allow the yarn stretching position to move in the direction of rotation of the empty bobbin opposite to the direction of yarn movement; to allow the yarn to be automatically unclamped from the upper yarn transmission mechanism; to move the yarn straight towards the center of passage without the formation of a bundle of straight yarn ends; and to begin winding normally when the yarn is clamped to the passage guide. 2. Method for winding synthetic fibers according to claim 1, where the lower yarn transmission mechanism is the conductor for the initial winding, which guides the yarn, controlled by the upper yarn transmission mechanism and the yarn passage control mechanism, into contact with the surface of the empty bobbin. The yarn is then moved in the axial direction of the empty bobbin, and the yarn stretching mechanism is released to stretch the yarn. 3. The method for winding synthetic fibers according to claim 2, whereby the upper yarn transmission mechanism shall be assembled with a yarn sliding guide to slide the yarn outside the range of width for passage, to allow another guide to hold the yarn and to move the yarn sliding guide back to its original position, and a yarn holding guide to maintain the moved yarn. 4. The method for winding synthetic fibers under any of the claims 1 through 3, where the length of the end of the wound yarn after it has been secured by the initial yarn securing unit and wound around the surface of the winding bobbin until the yarn moves straight towards the center of passage into the normal passage area, shall be controlled to a distance of 10 cm to 200 cm. 5. A method for winding synthetic fibers according to any of the claims 1 through 4, where the length of the yarn end is controlled by a resistance conductor maintained in contact with the yarn to create frictional resistance with the yarn as the yarn is moved toward its center of passage. 6. Method for winding synthetic fibers pursuant to claim 5, where the assembly of at least two or more resistance conductors shall be used in place of the resistance conductor. 7. A method for winding synthetic fibers according to either claim 5 or 6, where the length of the yarn ends is finely adjusted by adjusting the position of at least one resistance conductor. 8. A method for winding synthetic fibers according to any one of claims 5 through 7, where the length of the yarn end is finely adjusted by adjusting the position of the pivot point for movement. 9. Method for winding synthetic fibers according to any one of Reservations 5 through 8, where a single resistance conductor is the conductor for controlling the passage provided in a position opposite the rotary vane used in the passage device with reference to the passage of the yarn defined by the passage device provided as a rotary vane mechanism. 10. A method for winding synthetic fibers according to any one of the claims 5 through 8, whereby a resistance conductor is the conductor for releasing the yarn from the conductor for movement in a direction perpendicular to the direction of movement as the yarn is passed from one bobbin to another. 11. A method for winding synthetic fibers according to any one of the claims 1 through 4, where the yarn is directed straight toward a center of passage, where the yarn is supported by a helical groove, and the length of the yarn end is controlled by the rotation of the helical groove. 12. Method for winding synthetic fibers according to claim 11, where spiral grooves are formed in the surface of the contact press roller. 13. Methods for winding synthetic fibers according to any one of the claims 1 through 12, where the thread holding part is a channel protruding in a circumferential direction into the surface at the end of the bobbin for winding yarn. 14. A method for winding synthetic fibers under any of the claims 1 through 12 where the thread holding portion is formed at the edge between adjacent winding bobbins. 15. A method for winding synthetic fibers under any of the claims 1 through 12 where the thread fastening section is formed at the edge between the end of the winding bobbin and the tubular assembly. 16. One of the methods for winding synthetic fibers under claims 13 through 15 shall be such that the position by which the yarn shall be immediately released from the yarn holding mechanism after the yarn has been secured by the holding mechanism shall be on the non-moving side with reference to the holding mechanism when viewed in a direction perpendicular to the axis of the spindle. 17. Any method for winding synthetic fibers under any of the claims 1 through 16 whereby the binding surface of the ends of the wound yarn package is formed within a distance of at least 5 mm or more from the ends of the wound yarn package. 18. Synthetic Fiber Winding Machine: The yarn is wound around an empty bobbin using a winding machine equipped with a pivot point for yarn movement, a passage device for pre-winding yarn, a roller for making contact with the pre-defined surface and pressing it against the wound yarn, and a selectable spindle for winding the fed yarn. A passage device continuously moves the spindle for yarn transfer from the winding side to the preparation side, and a yarn guide device guides the yarn into the yarn clamp for securing it. This yarn guide system includes an upper yarn guide mechanism located at the source of the empty bobbin mounted around the winding side spindle, a lower yarn guide mechanism located at the destination, and a yarn passage control mechanism to guide the protruding yarn from the wound yarn package towards the preparation side. Specifically, the yarn is... The yarn is moved outside its normal passage area so that it is kept almost parallel to the yarn clamping section by the upper and lower yarn transmission mechanisms. It is then moved toward the yarn clamping section by at least one of the upper or lower yarn transmission mechanisms, where it is clamped and cut by the clamping section. The yarn clamping section is allowed to move in the direction of the empty bobbin's rotation, opposite to the direction of yarn movement. The yarn is allowed to be automatically released from the mechanism via the upper yarn passage and moved straight toward the center of passage without the formation of a bundle of the ends of the initially straight-line wound yarn. Once the yarn is clamped by the passage guide, normal winding begins. 19. The synthetic fiber winding machine pursuant to claim 18, where the lower yarn transmission mechanism is the winding guide, which guides the yarn, controlled by the upper yarn transmission mechanism and yarn movement control mechanism, into contact with the edge surface of the empty bobbin, moving the yarn in the axial direction of the empty bobbin and releasing it so that the yarn clamp holds the yarn in place. 20. A synthetic fiber winding machine pursuant to either claim 18 or 19, in which the upper yarn transmission mechanism shall be assembled with a yarn sliding guide to move the yarn outside the normal range of motion, to allow another guide to hold the yarn, and to move that guide back to its original position, and a yarn holding guide to maintain the moved yarn. 21. The synthetic fiber winding machine under either claim 18 or 19, where the length of the end of the wound yarn after the yarn, which has been secured by the initial yarn holding section, has been wound around the surface of the winding shuttle until the yarn moves straight towards the center of the normal passage area, shall be controlled at a distance of 10 cm to 200 cm. 22. A synthetic fiber winding machine pursuant to any of the claims 18 through 21, in which the length of the yarn end is controlled by a resistance conductor maintained in contact with the yarn to create frictional resistance to the yarn as the yarn is moved straight toward its center of passage. 23. A synthetic fiber winding machine pursuant to claim 22, where the combination of at least two or more resistance conductors shall be used in place of a resistance conductor. 24. A synthetic fiber winding machine pursuant to either claim 22 or 23, in which the length of the yarn ends is finely adjusted by adjusting the position of at least one resistance conductor. 25. A synthetic fiber winding machine pursuant to any of the claims 22 through 24, in which the length of the end of the fiber is finely adjusted by adjusting the pivot point of the guide for the movement. 26. Synthetic fiber winding machines pursuant to any one of Reserviences 22 to 25, where one opposing conductor is the control conductor of the passage provided in a position opposite to the rotary blades used in the passage device, with reference to the passage of the yarn defined by the passage device as a rotary blade mechanism. 27. A synthetic fiber winding machine pursuant to any one of claims 22 through 25, where a single resistance conductor is the conductor for releasing the yarn from the conductor for movement in a direction perpendicular to the direction of movement as the yarn is passed from one bobbin to the next. 28. A synthetic fiber winding machine pursuant to any of the claims 18 through 21, in which, once the yarn has been directed straight toward the center of passage, it is held in place by a helical groove, and the length of the yarn end is controlled by the rotation of that groove. 29. Synthetic fiber winding machine pursuant to claim 28, where spiral grooves are formed in the surface of the contact rollers. 30. Synthetic fiber winding machines according to any of the claims 18 through 29, where the part for holding the yarn is a channel protruding in a circumferential direction in the surface at the end of the bobbin for winding yarn. 31. Synthetic fiber winding machines as per any of the claims 18 through 30, where the yarn holding section is formed at the edge between adjacent yarn winding shuttles. 32. A synthetic fiber winding machine pursuant to any of the claims 18 through 31, in which the yarn holding section is formed by the edge between the end of the winding shuttle and the tubular assembly. 33. Any synthetic fiber winding machine under any of the claims 20 through 32, where the position by which the yarn is immediately released from the yarn holding guide after it has been held by the yarn holding section, is on the non-moving side with reference to the yarn holding section when viewed in a direction perpendicular to the axis of the spindle. 34. Any synthetic fiber winding machine under any of the claims 18 through 33 where the bundled surface of the ends of the wound yarns of the bundle is formed inside at a distance of 5 mm or more from the ends of the bundle of wound yarns. 35. The method for connecting the ends of yarn involves the process of cutting the yarn ends using the blade surface. Once the yarn end is pulled from the yarn bundle, it is wound around the bobbin's base. After the starting end of the yarn is secured by the securing part, the protruding yarn lies in a circumferential direction on the bobbin's end surface until the yarn forms a proper yarn bundle. 36. The method for connecting the ends of yarns according to claim 35, where the scissors have a composite part which is curved and has at least one surface beyond which is a blade to be slid between the surfaces of the scissors, shall be used for cutting the ends of the yarns. 37. Scissors are characterized by having one curved composite part and at least one surface other than that which is a blade, so that it may be moved between the surfaces of the scissors. (Clause 37, page 6, figure 29)