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CN-121986187-A - Vibration roller

CN121986187ACN 121986187 ACN121986187 ACN 121986187ACN-121986187-A

Abstract

An apparatus for applying a traveling wave in a plurality of wires moving in a web is provided. The apparatus includes a web damper, a vibrator roll, and an actuator. The web dampener and the vibration roller are arranged to contact the plurality of wires from opposite sides of the web, e.g. from the top and bottom, respectively (or vice versa). The vibrator roller is attached to the actuator such that the vibrator roller applies a movement to the vibrator roller in a direction perpendicular to the movement of the wire. The web damper is configured to provide damping of any waves transmitted through the wire towards the web damper such that the traveling wave is allowed to travel only in a direction away from the web damper.

Inventors

  • R. Lawrence
  • S. Langrok

Assignees

  • 贝卡尔特公司

Dates

Publication Date
20260505
Application Date
20241024
Priority Date
20231027

Claims (16)

  1. 1. An apparatus (100) for applying a travelling wave in a plurality of wires moving in a web, the apparatus comprising a web damper (101), a vibration roller (102) and an actuator (103), the web damper (101) and vibration roller (102) being for contacting the plurality of wires from opposite sides of the web, the vibration roller (102) being attached to the actuator, wherein the actuator is adapted to apply a movement to the vibration roller in a direction perpendicular to the movement of the wires, wherein the web damper is configured to dampen vibrations of wires travelling towards the web damper such that the travelling wave travels only in a direction away from the web damper and towards the vibration roller.
  2. 2. The apparatus of claim 1, wherein the oscillating roller (102) is free to rotate so as to follow the velocity of the wire web.
  3. 3. The apparatus according to claim 1 or 2, further comprising a carrier (104) fixedly connected to the ground and separate from the web damper (101), the vibration roller (102) and the actuator (103) being held by the frame (105), the frame being movably connected to the carrier by a connection (106).
  4. 4. The apparatus of claim 1 or 2, further comprising a carrier fixedly connected to the ground and separate from the web dampener, the vibration roller being held by the frame, the frame being movably connected to the carrier by a connector, the actuator being fixedly connected to the ground, the actuator being configured for actuating the frame.
  5. 5. The apparatus according to any of claims 3 or 4, wherein the connection (106) between the frame and the carrier is an elastic connection.
  6. 6. The apparatus of claims 1 to 5, wherein the actuator (103) is an unbalanced rotary motor, an axial motor, a resonant device.
  7. 7. The apparatus of any one of claims 1 to 6, wherein the actuator (103) is configured to apply a zero velocity of between 20mm/s and 100 mm/s.
  8. 8. The apparatus according to any one of claims 1 to 7, wherein the actuator (103) is configured to apply a frequency to the plurality of wires that is greater than a fundamental frequency of a system.
  9. 9. A thread treatment facility (500) comprising a fluid container (201), an overflow tray (202) overflowing into the container (201) for letting a plurality of threads (300) into or out of the fluid at the overflow, the thread treatment facility further comprising an apparatus according to any one of claims 1 to 8 at an inlet or outlet of the thread treatment facility, located outside the fluid container.
  10. 10. The filament processing facility according to claim 9, further comprising a filament holder (204) for holding the plurality of filaments, wherein the filament holder is located at an end of the processing facility (200) opposite to the end having the apparatus (100) according to any one of claims 1 to 8.
  11. 11. A thread treatment method of a moving web of a plurality of threads on a thread treatment facility according to claims 9 to 10, comprising introducing (S01) the threads into the fluid while applying (S02) vibrations with waves travelling towards the fluid, the thread treatment method further comprising damping (S03) vibrations transmitted through the threads away from the fluid.
  12. 12. The wire treatment method according to claim 11, wherein applying (S22) vibrations to the plurality of wires is done at a frequency that is greater than the fundamental frequency and does not allow standing waves.
  13. 13. The thread treatment method according to claim 11 or 12, wherein the applying (S12) of vibrations is performed by and at a vibrating roller according to claims 1 to 8, wherein vibrations have a zero speed between 50mm/S and 100 mm/S.
  14. 14. The wire treatment method of any one of claims 11 to 13, wherein applying vibration includes providing vibration such that its amplitude is nearly zero when exiting the overflow pan.
  15. 15. The thread treatment method according to any one of claims 11 to 14, wherein introducing (S11) the thread into the fluid comprises introducing the thread into an electrolyte.
  16. 16. The thread treatment method according to any one of claims 11 to 15, wherein applying (S02) vibration to the thread is performed on a portion of a moving thread before introducing (S01) the thread into the fluid.

Description

Vibration roller Technical Field The present invention relates to the field of the treatment of elongated elements such as threads. More particularly, the invention relates to a device for imparting vibrations on a moving wire during a treatment process. The process may be an acid wash process or a coating process. Background The metal wire requires treatment, such as washing, cleaning and descaling, before other treatments, such as electroplating, are performed. For example, pickling is used to remove surface impurities or oxides. Strong chemicals (e.g., acids, including sulfuric acid, etc.) are used as the pickling liquid. The amount of treated wire is large, resulting in a large amount of spent pickling liquid. Disposal of spent pickling liquids is expensive and is an environmental burden. Therefore, the pickling waste liquid should be reduced to a minimum. Contacting the filaments with an acid wash liquid typically causes chemical reactions that may lead to bubble formation, etc. This reduces the efficiency of the process. Alternatively, the wires may be coated in an electrolytic bath. During electrodeposition, positive metal ions are deposited on the positively charged wire. Near the wire, the deposition of metal ions is diffusion limited and the bilayer formed slows down the deposition of metal ions. This reduces the efficiency of the electrowinning. It is desirable to improve the quality of the contact of the wire with the fluid used for the treatment, such as an acid wash liquid or electrolyte, in order to increase efficiency and reduce treatment costs, time and/or waste. US 3 082 119 describes a galvanization plant in which the wire is shaken by a rotary motor having a disc comprising pins providing regular pulses to the wire. The fluid properties of hot dip galvanising baths are quite different from those of electrolytic or acid baths. Furthermore, the acceleration mentioned (20 g up to 1000 g) is sufficient to cause the wire to bend plastically on impact. This is undesirable. Disclosure of Invention It is an aim of embodiments of the present invention to provide an apparatus, facility and method for providing efficient cleaning and/or chemical treatment of a plurality of metal wires. In a first aspect, an apparatus for applying a traveling wave in a plurality of wires moving in a web is provided. The apparatus includes a web damper, a vibrator roll, and an actuator. The web dampener and the vibration roller are arranged to contact the plurality of wires from opposite sides of the web, e.g. from the top and bottom, respectively (or vice versa). The vibrator roller is attached to the actuator such that the vibrator roller applies a movement to the vibrator roller in a direction perpendicular to the movement of the wire. The movement imparted to the wire by the oscillating roller may be an up-and-down movement, i.e. in a vertical direction, or a left-and-right movement, i.e. in a horizontal direction, or a combination thereof, i.e. in an elliptical movement, e.g. in a circular movement. The web damper is configured to provide damping of waves transmitted by the wire towards the web damper such that the traveling wave is allowed to travel only in a direction away from the web damper towards and past the vibrating roller. The web dampener may take the form of a felt contacting the wire web. The felt dampens the vibration of the filaments to a large extent. At the same time, the felt can help dry the filaments when exiting the previous step or entering the next step. Alternatively, the web dampener may take the form of a brush that holds the wires in place. The web dampener may also be a roller, possibly a grooved roller, that holds the wire in place and pushes the wire against the oscillating roller. The rollers may be passive, i.e. the rollers are rotated by friction with the passing wire, or the rollers may be driven. Preferably, the oscillating roller rotates freely with the wire web and there is no friction between the oscillating roller and the wires forming the wire web. If there is friction between the vibrator roller and the wire, this will damage not only the vibrator roller but also the wire surface, which is not acceptable. The contacting of the wire web with the web dampener and the vibrator roller causes the vibrator roller to touch, contact, move the wire web for at least half of the vibration cycle of the actuator. It is also preferred that the vibrator roll touches, contacts, moves the wire web throughout the vibration cycle of the actuator. This may be achieved by varying the height of the web dampener and/or by varying the height of the vibrator roller or by varying both. It is also preferred that the diameter of the vibrator roller at the location where it touches the wire is at least ten times larger than the diameter of the wire, or fifteen times larger than the diameter of the wire, or even twenty times larger than the diameter of the wire. Too small a diameter of the vibrating r