Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
  • B21C43/02—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass combined with or specially adapted for use in connection with drawing or winding machines or apparatus
  • B21C43/04—Devices for de-scaling wire or like flexible work

Definitions

• This invention relates to cleaning wire and the like and in particular to the cleaning by abrasion of the surface of metal wire, rod or strip so as to remove for example oxide following a heat treatment operation, or lubricant following a rolling or drawing operation.
• a method of cleaning an elongate strip comprises passing the same tnrough a die dimensioned to provide a working clearance about tne strip ana between it and the die, holding the strip under tension whilst so passed, causing transverse vibration of the strip relative to the die so that a number of points around the surface of the strip contact the die, ana passing a fluid through ' the die to displace material removed from the strip surface by the die.
• the invention also consists in apparatus for carrying out the method.
• the die will have a cylindrical bore, and the same bore will be used as a passage for the fluid which is to displace material removed from the strip surface, and the fluid, which conveniently is water, may be pumped under pressure through a tangential opening to a mid-point along the length of the bore so that the water tends to spiral in opposite directions to the ends of the bore.
• the strip may be vibrated transversely by mechanical
• OMPI M means or by electromagnetic means for example.
• the vibrations may be applied to the strip whilst passing through a relatively stationary die structure, or alternatively the die structure may be sub ect to the vibrations so as to displace the strip laterally ana hence cause the vibration in the strip.
• the wire may pass over a rotating pulley having its surface formed somewhat as a snail cam so that the wire is displaced laterally and then allowed to return ⁇ ue to the tension in the wire.
• a number of such means tor causing the lateral displacement may be provided arranged for displacement generally at right angles to one another.
• the preferred direction of vibration of the strip is in a generally circular pattern extending about the axis of the tensioned strip when not subject to the vibration.
• a number of cleaning dies are provided, at suitable intervals, along the length of the strip and where mechanical or electromagnetic means cause the lateral movement of the wire, the force causing the vibration may be applied at points between successive dies so that the dies tend to act as nooes or at least as points of minimum amplitude of vibration with the maximum amplitude being at the points of application of the force causing the vibration.
• a rotating magnetic field may be set up for example at each
• O PI die O PI die, and it is believed that this may be useful not only with magnetic materials as the strip but also with good electrical conductors as strip, and hence in practice with substantially all metal strips which are required to be cleaned.
• the invention is applicable to strips which are not of circular cross section, for example rectangular strips.
• the die will also be of similar rectangular section.
• the dies may be made of a material selected according to the nature of the cleaning operation to be carried out, and according to the nature of the strip material.
• cleaning oil from a soft material wire may be achieved using a high density polyethylene for the die, but if a fierce abrasive action is required to remove stubborn scale, a tungsten carbide material may be used for the die surface.
• cleaning can include removal of contaminants such as the lubricating oil mentioned, removal of surface oxide, and also include the possibility of including polishing or other surface finishing of the strip material with such removal of lubricants, scale and the like, or if the wire was chemically clean before the treatment, (which is an unusual situation) then it includes the possibility of performing a surface finisning or polishing operation per se.
• the rod or strip 10 is conveyed in the direction of tne arrow A under tension.
• it may be driven by pairs of pinch feed rolls 12 ano 14 of which the rolls 12 run slightly faster than the rolls 14.
• the rod passes through two cleaning dies 16 which are generally similar to one another, each of which has a bore slightly larger than the rod and of the same cross section.
• the drawing exaggarates the clearance in the interest of clarity in explaining the working of the invention.
• the rod is vibrated transversely and generally in a plane containing the axis of the rod by the use of a snail cam Id which is rotated about the axis 2 ⁇ ano which engages the rod at its periphery substantially midway between the dies.
• This causes the rod to oscillate generally between the two extreme paths indicated by the chain dot lines 22 24, the oscillations being confined between nodal points at the respective pincn rolls 12 and 14 and being limited by the dies.
• the rod By imparting vibration about a second axis at right angles to that of shaft 2U, the rod can be caused to vibrate in a generally circular pattern within the bounds in ⁇ icate ⁇ by tne chain cot lines 22 24 with increased certainty of cleaning of the entire surface area.
• Material abraded from the roo surface in the dies is flushed by liquid pumped through the pipe system 26 and, in this embodiment, the pipes lead to tangential apertures in the die bores so as to cause a spiralling current of cleaning liquid to flow through the bores.
• the rod may be dried for example by an air wipe constructed generally as described in BP.1533846.

Landscapes

• Mechanical Engineering (AREA)
• Engineering & Computer Science (AREA)
• Cleaning In General (AREA)
• Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
• Surgical Instruments (AREA)
• Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
• Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
• Cleaning By Liquid Or Steam (AREA)
• Metal Extraction Processes (AREA)
• Mechanical Treatment Of Semiconductor (AREA)
• Ropes Or Cables (AREA)
• Manufacturing Of Electric Cables (AREA)
• Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
• Sink And Installation For Waste Water (AREA)
• Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
• Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
• Superconductors And Manufacturing Methods Therefor (AREA)
• Catalysts (AREA)
• Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)

Priority Applications (3)

Applications Claiming Priority (1)

Publications (1)

Family

ID=10531925

Family Applications (1)

Country Status (10)

Families Citing this family (3)

Citations (3)

• 1983
  • 1983-07-26 DE DE8383304316T patent/DE3366092D1/de not_active Expired
  • 1983-07-26 GB GB08320109A patent/GB2124323B/en not_active Expired
  • 1983-07-26 JP JP58502782A patent/JPS59501371A/ja active Pending
  • 1983-07-26 AU AU18866/83A patent/AU561751B2/en not_active Ceased
  • 1983-07-26 EP EP83304316A patent/EP0100236B1/en not_active Expired
  • 1983-07-26 WO PCT/GB1983/000181 patent/WO1984000509A1/en active IP Right Grant
  • 1983-07-26 AT AT83304316T patent/ATE22020T1/de not_active IP Right Cessation
  • 1983-08-04 IN IN974/CAL/83A patent/IN158703B/en unknown
• 1984
  • 1984-02-20 FI FI840684A patent/FI86518C/fi not_active IP Right Cessation
  • 1984-02-24 DK DK097584A patent/DK160971C/da not_active IP Right Cessation

Patent Citations (3)

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