EP1352710A2 - Mechanisches System mit einstellbarer Drehzahl zur Reingung von Draht - Google Patents

Mechanisches System mit einstellbarer Drehzahl zur Reingung von Draht Download PDF

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Publication number
EP1352710A2
EP1352710A2 EP03004477A EP03004477A EP1352710A2 EP 1352710 A2 EP1352710 A2 EP 1352710A2 EP 03004477 A EP03004477 A EP 03004477A EP 03004477 A EP03004477 A EP 03004477A EP 1352710 A2 EP1352710 A2 EP 1352710A2
Authority
EP
European Patent Office
Prior art keywords
wire rod
assembly
mechanical system
mechanical
cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03004477A
Other languages
English (en)
French (fr)
Other versions
EP1352710B1 (de
EP1352710A3 (de
Inventor
Ferruccio Bellina
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TECNOSIDER Srl
Original Assignee
TECNOSIDER Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TECNOSIDER Srl filed Critical TECNOSIDER Srl
Publication of EP1352710A2 publication Critical patent/EP1352710A2/de
Publication of EP1352710A3 publication Critical patent/EP1352710A3/de
Application granted granted Critical
Publication of EP1352710B1 publication Critical patent/EP1352710B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F99/00—Subject matter not provided for in other groups of this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C9/00—Cooling, heating or lubricating drawing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/02—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels
    • B24B31/0206—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels for descaling wires travelling through the rotating drum

Definitions

  • the present invention relates to a motor driven rotary variable speed mechanical system for cleaning wire rods and metal wires.
  • the wire rod surface cannot be sufficiently cleaned, and accordingly can include traces of calamine or an excessive amount of very abrading powder thereon.
  • the wire rod metal material will directly contact the inner metal material of the drawing die, with a consequent seizure of the operating surfaces.
  • the aim of the present invention is to provide such an improved scaling system, comprising a mechanical scaling apparatus, specifically designed for meeting the operating requirements to provide a high quality drawing operation, while using a novel system, both with respect to the elimination of calamine, and with respect to the end cleaning of the wire material and its lubricating in the first drawing die.
  • a main object of the present invention is to provide such a scaling system including a first mechanical assembly, comprising a pulley, driven by a toothed belt through a variable speed motor.
  • Said pulley is keyed on a shaft fixed to a rotary body.
  • the wire rod material in particular, is gripped at two end portions thereof at the inlet and outlet of a first mechanical assembly, under an action provided on the wire rod by grippers comprising rollers pressing on the wire rod.
  • the mentioned two sheaves in particular, and as stated, provides the wire rod, inside a first scaling mechanical assembly, with a complex movement.
  • This movement is in part a sinusoidal movement, but it is added to a rotary movement which is applied to the sheaves by a rotary shaft supporting said sheaves.
  • the wire rod is subjected to a pressure stress, at its first inlet portion at the rotary body.
  • the wire rod In the second portion of its trajectory, in the mentioned first mechanical scaling assembly, the wire rod is subjected to a reverse twisting operation, since said wire rod is restrained, at said two end portions, by the mentioned gripping rollers.
  • the twist number to be applied to the wire rod will depend on the linear speed and diameter of said wire rod.
  • Such a process must be performed also depending on the oxide amount on the surface of the wire rod being processed.
  • the treatment process as herein disclosed prevents the wire rod from being surface work hardened, which would hinder a satisfactory drawing, and which, moreover, would cause a reduction of the wire rod ductility.
  • the above disclosed characteristics of the system according to the present invention provides the advantage of preventing, differently from available scalers, any work hardening of the wire rods from occurring.
  • the device or system according to the invention allows to remove calamine and other impurities from the wire rod, without excessively deforming and work hardening the wire rod material, while operating within the material elastic range, and safely overcoming the negative effects related to the wire rod work hardening.
  • the linear speed of the wire rod in combination with the rotary movement of the sheave assembly arranged inside the scaling machine, provide a given number of twisting and detwisting operations on the wire rod, which inevitably cause a movement of the wire rod surface.
  • calamine present on the wire rod surfaces is not always resilient and, as it is subjected to the above mentioned mechanical treatment, it is detached from the wire rod surface.
  • the invention provides the possibility of modifying the number of revolutions of the rotor arranged in the first mechanical assembly of the inventive system or apparatus, to perform, with the proper twisting number, those specific processing operations which are necessary for a given type of wire rod.
  • a further minimum straining action is provided, inside the first mechanical assembly of the system according to the invention, because of the inner path between the operating sheaves.
  • the central portion can be easily modified in its geometrical position, to increase or reduce the winding strain or stress.
  • Such a characteristic allows to observe or see, during the process, the surface condition of the wire rod.
  • Such a feature moreover, allows to properly set the apparatus or machine to provide the best operating result, with the minimum straining of the wire rod, and this providing a great advantage related to the following drawing operation.
  • the system according to the present invention further comprises a second mechanical assembly which is used for performing a subsequent cleaning operation on the wire rod surface, to remove possible further traces of calamine.
  • the mentioned second mechanical assembly comprises a rotary drum, coaxially to which the wire rod is caused to pass, for being subjected to a cleaning process.
  • an abrasive material of suitable particle size designed for providing an optimum cleaning action on the wire rod.
  • Such a cleaning action in particular, will be improved by pressurized air blowers, one of which is arranged between the first mechanical assembly operating as a scaler proper, and the cleaning assembly proper.
  • a second blower or blowing assembly is arranged at the outlet of the cleaning device.
  • this material can be less or more abrading, and it can have either a greater or less specific weight than that of the wire rod material.
  • the abrasive or abrading material can comprise metal products, metal-ceramic materials, or can have a sharpened corner configuration.
  • the system according to the invention provides, moreover, to use a rotary die.
  • Such a rotary die assembly will be arranged at the outlet of the cleaning assembly and it will replace the die of the first operating step of the drawing apparatus.
  • the used rotary die will provide, moreover, a forced lubricating action on the wire rod.
  • the rotary die will complete the drawing process with the cross-section reduction performed in the die, by definitely pressing on the wire rod surface the lubricating material indispensable for performing the drawing operation.
  • the rotary die applied to the inventive system comprises specifically designed cooling elements allowing the die to be easily replaced.
  • the cooling of the die will be of a direct type and of a spraying nature.
  • the cooling material in particular, will be caused to impinge on the die surface with a greatly turbulent movement, thereby overcoming possible air bubbles which would reduce a proper cooling of the die.
  • the die can operate at a lower temperature, while improving its duration and lubricating properties.
  • the operation for replacing the die constitutes another very useful characteristic, since in the inventive system it is possible to replace the die which can be easily accessed through a top opening.
  • a system comprising: a first mechanical assembly performing a series of twisting and detwisting operations on the wire rod and a series of bending operations in opposite directions, thereby providing on the wire rod material a scaling action; a cleaning assembly including a rotary drum therethrough the wire rod to be cleaned is caused to pass, and holding therein an abrading material.
  • the system according to the present invention comprises a scaler or scaling assembly 1, including a tubular element 10, therethrough the wire rod or wire material slides, said wire rod being gripped by gripping rollers 11, 12, driven by a driving assembly 13.
  • Said gripping rollers 11 and 12 are suitably contoured and are arranged at one end portion of the mentioned first scaling or scaler assembly.
  • the wire material or wire rod F enters a rotary shaft 20, having a perforated inside, and is conveyed to an assembly 16, where it is subjected to a first bending operation, and then to a variously arranged assembly 17, which constitutes an integrating portion of the inventive system.
  • the wire rod after having being subjected to a further bending and folding operation, will pass through the sheaves 40 of a third assembly 18, and will axially exit the perforated shaft 20' supporting a pulley driven by an electric motor.
  • the assembly including the elements 16, 17 and 18 supporting a plurality of sheaves 40 will exit the hollow shaft 20' and will be gripped by the gripping rollers 11' and 12' driven by the driving assembly 13'.
  • the first comprises a series of bending operations in different directions, applied to the wire rod by the sheaves 40, causing said wire rod to perform a series of bending movements in both directions.
  • the second movement is applied to the wire rod by the rotary assembly 15, which causes a twisting in the first half of the path and a following twisting, of reverse direction, since the wire rod is restrained at the pairs of gripper rollers 11, 12 and 11', 12' thereby providing such a starting twisting and reverse twisting, at the end portion of the scaling assembly 1.
  • Said wire rod F is conveyed to a mechanical assembly 2, for cleaning the wire rod or wire material.
  • the wire rod F is subjected to a first cleaning process, by blowing, provided on said wire rod at two conveyer and blower devices 22 and 22', coupled at coupling fittings 27 and 27' to a supply duct 28 in turn coupled to a metering valve 29, in turn connected to a pressurized air tank or source.
  • the wire rod F passes through a shaft 50, comprising a perforated type, supported by support elements 23 and 23' which further support the rotary drum 24.
  • the rotary drum 24 in particular, holds in its inside and abrading or abrasive material, having a suitable particle size, configuration and abrading properties, thereby providing a suitable cleaning action on the surface of the air rod being processed.
  • the rotary speed of the rotary drum 24 can be changed, by using a step by step motor 28 which, through a transmission belt 27, will rotatively drive the pulley 26 keyed on the shaft 50 on which said drum 24 is also mounted.
  • the wire rod will be conveyed to the third assembly 3 through a perforated tubular element 30, and it will be further conveyed to an assembly 3 comprising a rotary die holder, including a pre-lubricating system for pre-lubricating the wire rod material.
  • the rotary die holder assembly 36 is driven by an electric motor, which also drives a pulley 31 keyed on the shaft 32 of the die assembly 37.
  • the latter comprises a spraying device, designed for directly conveying on the surface of the operating die a spray, provided with a turbulent motion, thereby eliminating possible air bubble which would hinder the cooling of the die.
  • the rotary die holder assembly according to the invention comprises moreover a top opening 34 including a closing door 34' therethrough it is possible to replace in a very easily manner the operating die 38.
  • the die can operate at a lower temperature, thereby increasing its duration and improving the lubricating operation.
  • the hole 41 is made eccentrical for few millimeters, from the wire axis, thereby the rotary movement of the body 32 about the wire, will generate and hold an annular gap, in actual practice a tunnel, always in a free condition for facilitating the re-supplying of the lubricating material mainly against the operating die 38.
  • the present system comprises a series of mechanical devices including the operating assemblies 1, 2 and 3, the use of which will provide very good mechanical cleaning results, as well as drawing results on the wire rods and wire materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Brushes (AREA)
  • Metal Extraction Processes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Wire Processing (AREA)
EP03004477A 2002-04-08 2003-02-27 Mechanisches System mit einstellbarer Drehzahl zur Reingung von Draht Expired - Lifetime EP1352710B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20020737 2002-04-08
IT2002MI000737A ITMI20020737A1 (it) 2002-04-08 2002-04-08 Impianto meccanico rotativo motorizzato a velocita' variabile per la pulizia di vergella e fili metallici

Publications (3)

Publication Number Publication Date
EP1352710A2 true EP1352710A2 (de) 2003-10-15
EP1352710A3 EP1352710A3 (de) 2004-03-03
EP1352710B1 EP1352710B1 (de) 2008-02-20

Family

ID=11449664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03004477A Expired - Lifetime EP1352710B1 (de) 2002-04-08 2003-02-27 Mechanisches System mit einstellbarer Drehzahl zur Reingung von Draht

Country Status (4)

Country Link
EP (1) EP1352710B1 (de)
AT (1) ATE386612T1 (de)
DE (1) DE60319173D1 (de)
IT (1) ITMI20020737A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113145516A (zh) * 2021-05-25 2021-07-23 宁波华成阀门有限公司 一种铜棒清洁装置及清洁方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107322248A (zh) * 2017-08-29 2017-11-07 洛阳鼎辉特钢制品股份有限公司 一种零脱碳层轴承钢盘条的制备装置及制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2703550A (en) * 1952-01-09 1955-03-08 Northwestern Steel & Wire Co Apparatus for descaling and coating wire
CH327811A (de) * 1954-04-06 1958-02-15 Linstedt Bruno Drahtenzunderungseinrichtung
US3081524A (en) * 1957-05-17 1963-03-19 Westinghouse Electric Corp Scale breaking apparatus for drawn wire
US3691692A (en) * 1970-02-13 1972-09-19 Boehler & Co Ag Geb Apparatus for continuously cleaning the surface of elongated stock
EP0504846A1 (de) * 1991-03-21 1992-09-23 MARIO FRIGERIO S.p.A. Matrizenhalter mit umlaufender Matrize
US5634363A (en) * 1994-06-30 1997-06-03 Kabushiki Kaisha Kobe Seiko Sho Method of mechanical descaling and mechanical descaling equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2703550A (en) * 1952-01-09 1955-03-08 Northwestern Steel & Wire Co Apparatus for descaling and coating wire
CH327811A (de) * 1954-04-06 1958-02-15 Linstedt Bruno Drahtenzunderungseinrichtung
US3081524A (en) * 1957-05-17 1963-03-19 Westinghouse Electric Corp Scale breaking apparatus for drawn wire
US3691692A (en) * 1970-02-13 1972-09-19 Boehler & Co Ag Geb Apparatus for continuously cleaning the surface of elongated stock
EP0504846A1 (de) * 1991-03-21 1992-09-23 MARIO FRIGERIO S.p.A. Matrizenhalter mit umlaufender Matrize
US5634363A (en) * 1994-06-30 1997-06-03 Kabushiki Kaisha Kobe Seiko Sho Method of mechanical descaling and mechanical descaling equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113145516A (zh) * 2021-05-25 2021-07-23 宁波华成阀门有限公司 一种铜棒清洁装置及清洁方法

Also Published As

Publication number Publication date
ITMI20020737A0 (it) 2002-04-08
ATE386612T1 (de) 2008-03-15
ITMI20020737A1 (it) 2003-10-08
EP1352710B1 (de) 2008-02-20
EP1352710A3 (de) 2004-03-03
DE60319173D1 (de) 2008-04-03

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