Search

KR-20260067968-A - Suction apparatus of yarn

KR20260067968AKR 20260067968 AKR20260067968 AKR 20260067968AKR-20260067968-A

Abstract

The yarn suction device of the present invention comprises: a nozzle part that sucks in yarn and is formed in a tubular shape extending in the longitudinal direction; a spinning part that spins yarn and is connected to the nozzle part and is formed in a tubular shape extending in the longitudinal direction; a suction part that sucks in air and supplies the air sucked in to the spinning part; a first jet hole provided in the spinning part and communicating with the suction part and consisting of one or more holes; and a second jet hole provided in the spinning part and communicating with the suction part and consisting of one or more holes; wherein the second jet hole is spaced apart from the first jet hole and the second jet hole is provided in the rear end direction of the first jet hole.

Inventors

  • 원종열
  • 진상우

Assignees

  • 코오롱인더스트리 주식회사

Dates

Publication Date
20260513
Application Date
20250804
Priority Date
20241106

Claims (12)

  1. In a yarn suction device for sucking in and spinning yarn, A nozzle part formed in a tubular shape extending in the longitudinal direction and sucking in yarn; A spinning section formed in a tubular shape extending in the longitudinal direction, connected to the nozzle section, and spinning a yarn; A suction part that inhales air and supplies the inhaled air to the radiation part; A first jet hole provided in the above-mentioned radiating part and communicating with the above-mentioned suction part, and consisting of one or more holes; A second jet hole provided in the radiation part and communicating with the suction part, comprising one or more holes; A suction device for yarn characterized in that the second jet hole is spaced apart from the first jet hole, and the second jet hole is provided in the rear direction of the first jet hole.
  2. In paragraph 1, A suction device for yarn characterized in that the total cross-sectional area of the first jet hole is 10% to 80% of the cross-sectional area of the yarn.
  3. In paragraph 1, A suction device for yarn characterized in that the total cross-sectional area of the second jet hole is 70% to 350% of the cross-sectional area of the yarn.
  4. In paragraph 1, A yarn suction device characterized in that the total cross-sectional area of the second jet hole is 100% to 500% of the total cross-sectional area of the first jet hole.
  5. In paragraph 1, A suction device for yarn characterized in that the cross-sectional area of the nozzle portion is 200% to 300% of the cross-sectional area of the yarn.
  6. In paragraph 1, It includes a transfer section formed in the spaced-apart space between the first jet hole and the second jet hole, A bottleneck portion is provided at the rear end of the transfer portion that contacts the front end of the second jet hole, and A suction device for yarn characterized in that the cross-sectional area of the above-mentioned bottleneck is 300% to 800% of the cross-sectional area of the above-mentioned yarn.
  7. In paragraph 6, A suction device for yarn characterized in that the cross-sectional area of the above-mentioned bottleneck portion is 100% to 700% of the cross-sectional area of the above-mentioned nozzle portion.
  8. In paragraph 6, A suction device for yarn characterized by the above-mentioned conveying section including a change section in which the diameter expands and then contracts as it moves from the front direction to the rear direction.
  9. In paragraph 1, The second jet hole is formed by bending at a specified angle with respect to the direction in which the yarn is conveyed, and A suction device for yarn characterized in that the angle at which the second jet hole is formed with respect to the direction in which the yarn is conveyed is 3 to 50 degrees.
  10. In paragraph 1, The first jet hole is formed by bending at a specified angle with respect to the direction in which the yarn is conveyed, and A suction device for yarn characterized in that the angle at which the first jet hole is formed with respect to the direction in which the yarn is conveyed is 3 to 50 degrees.
  11. In paragraph 1, A suction device for yarn characterized by the above-mentioned spinning section including an expansion section that widens as it goes from the front direction to the rear direction.
  12. In Paragraph 11, A yarn suction device characterized by the diameter of the above-mentioned expansion portion being 29 mm to 38 mm.

Description

Suction apparatus of yarn The present invention relates to a yarn suction device, and more specifically, to a yarn suction device capable of suctioning yarn even at high spinning speeds by sucking in air through a first jet hole and a second jet hole and conveying the yarn sucked in through a nozzle part. In the process of manufacturing yarn, a suction gun that sucks in and spins the yarn may be used. The suction gun may be equipped with a hole for sucking in air, and it is a device capable of sucking in and spinning yarn through the suction force of air. However, conventional suction guns have the following problems. In conventional suction guns, the spinning speed of yarn was 70 mpm (meters per minute), but recently, the spinning speed has been increasing to about 200 mpm. However, when the spinning speed of yarn is increased to 200 mpm in this way, there is a problem in that it is difficult to suck in the yarn through the suction gun. Therefore, there is a need to develop a suction gun that can suck in and spin yarn even when the spinning speed is increased. FIG. 1 is a drawing showing a yarn suction device according to an embodiment of the present invention. FIG. 2 is a drawing showing a radiating part equipped with a first jet hole and a second jet hole according to an embodiment of the present invention. FIG. 3 is a diagram showing the performance evaluation process of a suction device according to an embodiment of the present invention. FIG. 4 is a drawing showing a first embodiment, a second embodiment, and a third embodiment in which the conditions of the cross-sectional area of the nozzle part, the first jet hole, the second jet hole, and the bottleneck part are changed according to an embodiment of the present invention. FIG. 5 compares the suction performance of a suction device according to a first embodiment of the present invention with the suction performance of a suction device (comparative example) having only a first jet hole and not a second jet hole, the suction performance of a suction device according to a second embodiment with the suction performance of a suction device according to a first embodiment (comparative example), and the suction performance of a suction device according to a third embodiment with the suction performance of a suction device according to a second embodiment (comparative example). This specification clarifies the scope of the present invention and explains the principles of the present invention and discloses embodiments so that those skilled in the art can practice the present invention. The disclosed embodiments may be implemented in various forms. Expressions such as "comprising" or "may comprise" that may be used in various embodiments of the present invention indicate the existence of the disclosed corresponding function, operation, or component, and do not limit one or more additional functions, operations, or components. Furthermore, in various embodiments of the present invention, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof. When it is stated that a certain component is "connected or coupled" to another component, it should be understood that the said certain component may be directly connected or coupled to the said component, but that a new other component may also exist between the said certain component and the said other component. On the other hand, when it is stated that a certain component is "directly connected" or "directly coupled" to another component, it should be understood that no new other component exists between the said certain component and the said other component. The terms "first," "second," etc., as used in this specification may be used to describe various components, but the components should not be limited by these terms. The terms are used solely for the purpose of distinguishing one component from another. The present invention relates to a yarn suction device, and more specifically, to a yarn suction device capable of sucking yarn even at high spinning speeds by sucking air through a first jet hole and a second jet hole and conveying the yarn sucked in through a nozzle part. The yarn suction device according to an embodiment of the present invention may be a suction gun that sucks in and spins various types of yarn. The suction device according to an embodiment of the present invention may be a device capable of sucking in various yarns that can be produced using a wet-dry spinning method, such as aramid, lyocell, and polyacrylonitrile yarns. In addition, the yarn suction device according to the embodiment of the present invention is not limited to the form of a gun, and can be made in various forms as