EP0924007A2 - Procédé et dispositif de coupage de fil en tronçons de longeurs prédéterminées - Google Patents

Procédé et dispositif de coupage de fil en tronçons de longeurs prédéterminées Download PDF

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Publication number
EP0924007A2
EP0924007A2 EP98123885A EP98123885A EP0924007A2 EP 0924007 A2 EP0924007 A2 EP 0924007A2 EP 98123885 A EP98123885 A EP 98123885A EP 98123885 A EP98123885 A EP 98123885A EP 0924007 A2 EP0924007 A2 EP 0924007A2
Authority
EP
European Patent Office
Prior art keywords
cutting
wire
knife
drive motor
speed
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
EP98123885A
Other languages
German (de)
English (en)
Other versions
EP0924007A3 (fr
EP0924007B1 (fr
Inventor
Carsten Schauhoff
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.)
Gsg & Co KG GmbH
Original Assignee
Gsg & Co KG GmbH
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 Gsg & Co KG GmbH filed Critical Gsg & Co KG GmbH
Publication of EP0924007A2 publication Critical patent/EP0924007A2/fr
Publication of EP0924007A3 publication Critical patent/EP0924007A3/fr
Application granted granted Critical
Publication of EP0924007B1 publication Critical patent/EP0924007B1/fr
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
    • B21F11/00—Cutting wire

Definitions

  • the invention relates to a method for cutting off Pieces of wire of predetermined length from a wire of a wire feed device is supplied, and from that in a cutting device of at least two opposite, about in a common cutting plane arranged cutting blades during the feed movement pieces of wire are cut in succession, the Cutting edge from a knife drive motor in rotating opposite cutting movement are brought, as well as a Device for performing such a method a cutting device with at least two opposite, arranged approximately in a common cutting plane rotating cutting knives with a knife drive motor are connected.
  • reinforcement grids are used in the construction sector large scale for the production of reinforced concrete structures used. These reinforcement grids are commonly used in so-called lattice welding systems made from individual pieces of steel wire manufactured. For example, in Longitudinal direction of such a grid welding system parallel next to each other a plurality of pieces of wire in cycles the welding system is fed and with transverse to it individually or double-fed cross wire pieces welded.
  • the wire used for this purpose is made from wire rod manufactured, the surface of which was previously formed is profiled, these profiles for better Anchoring the resulting reinforcement mesh in Serve concrete.
  • the required wire is usually used in upstream independent of the grid welding systems Wire drawing machines formed and in one Cutting device into pieces of wire with the respectively required Cut off length. Beyond that too in many other areas of the wire industry cutting devices used that work on a similar principle, as described for reinforcement grids.
  • cutting devices have been used that have two counter-rotating knives that are move on circular paths or more complicated path curves.
  • the knives are fitted with suitable gears and a motor driven and must accelerate from standstill in cycles at the time of editing Relative speed adjusted to wire speed to reach.
  • For the cut itself must be sufficient in the system large flywheels are used to apply the necessary cutting forces. Result from it relatively high drive powers, either directly or with a constantly running engine with a clutch transferred to the knives, from which then in 1000th of a second range the start and the path-time course the acceleration can be controlled up to the cut must have cutting tolerances of the order of ⁇ 1 to ensure up to 2 mm.
  • the object of the invention is therefore to provide a solution create with which the cutting of pieces of wire predetermined Length of a wire with much larger Wire feed speed reliable and accurate is possible.
  • This task is performed using a method of the type mentioned at the beginning Art solved according to the invention in that first the feeding speed of the wire to the cutting device determined and depending on this the Knife drive motor operated at constant speed is such that the cutting knife from the knife drive motor continuously at a feed rate synchronous peripheral speed are rotated, and that depending on the circumference of the flight circle of the cutting knife and the predetermined length of the cut Piece of wire the wire per cutting cycle once in the Cutting knife level is moved.
  • a method is thus proposed in a departure from the previous state of the art, so to speak used a "flying scissors" where the cutting knife throughout in the process Rotational movement are offset. It is by appropriate Engine control to achieve flawless Cutting result of course ensures that the peripheral speed of the cutting knives the feed speed of the wire corresponds to no relative movement enter between the cutting blades and the wire allow. Depending on the given length of the cut Piece of wire and the circumference of the flight circle the cutting knife becomes the wire fed moved into the cutting plane of the knife at a time, so that, for example, with a flight circle of 750 mm in a simple way pieces of wire with a length of 750 mm, 1,500 mm and other integer multiples of 750 mm can be realized.
  • the movement of the wire in the Cutting plane takes place between two passes of the knife due to the cutting position and is not critical in terms of time.
  • the inventive method is because the knife not have to be accelerated every time, but circulate continuously, also much easier in terms of equipment, because a much less powerful motor is used can be (for example up to 10 kW), also the control is much easier and the cutting accuracy is much higher because it is not time critical Triggering of an operation or acceleration must become.
  • the length tolerance of the cut piece of wire depends only on the synchronous running of the knife speed to wire speed. This synchronous run is through a suitable detection of the wire speed easy to implement. It is a pure speed control. With this procedure you can without further wire feed speeds of 6 m / s and realize more.
  • the cutting knife within the cutting cycle a certain one Execute advance or retard.
  • this superposition gear can be formed by a planetary gear that is then equipped with an additional motor drive.
  • the intermediate acceleration of the knives stands for a sufficient period of time during the entire cutting cycle to disposal.
  • the lead or lag may be sufficient temporal distance from the cutting time range as pure distance or Angle control independent of the time course be performed.
  • the invention provides a solution to the problem set out at the beginning also a device for performing the above Procedure before, through an establishment to determine the feeding speed of the wire, which is connected to the knife drive motor that the Cutting knife continuously with the feed speed drives synchronous peripheral speed, and by means for moving the wire out the cutting knife level is marked.
  • the device advantageously has between the knife drive motor and the cutting blades a first gear and a second superposition gear to possibly the Intermediate acceleration during a cutting cycle to be able to perform.
  • the superposition gear is particularly advantageous designed as a planetary gear, which is provided with its own motor drive.
  • connection between the knife drive motor and the Cutting knives advantageously take place via at least one Pulley designed as a flywheel.
  • the Device for moving the wire out of the Cutting knife level from one transverse to the wire feed direction movable pair of rollers is formed.
  • An inventive device for cutting off Pieces of wire of a given length of one wire initially point a cutting device generally designated 1 on, the two opposite, roughly in a common one Rotating cutting blades arranged in the cutting plane 2, 2a.
  • the cutting knife 2 is on one Cutting knife arm 3 attached while the cutting knife 2a is attached to a cutting knife arm 3a.
  • Of the Cutting knife arm 3 is in turn non-rotatable on a shaft 4 attached, while the cutting knife arm 3a rotatably is attached to a shaft 4a.
  • Both waves 4, 4a are connected with each other with a 1: 1 ratio, that at the same speed of rotation in opposite Direction. This is on wave 4 or the shaft 4a in engagement with each other standing equally sized gear 5 and 5a arranged.
  • the Shaft 4a is with the output shaft of a planetary gear 13 connected.
  • the housing of the planetary gear 13 is non-rotatable with a flywheel Toothed pulley 6 connected via a toothed belt 7 is connected to a further toothed belt pulley 8, the rotatable with the output shaft of a knife drive motor 9 is connected. So is the output shaft of the Motors 9 set in rotation, so the two Cutting knife 2, 2a in the opposite direction driven and describe the same rotational speed a flight circle with a predetermined scope.
  • the cutting device 1 is a not shown Wire feeder continuously on with the reference symbol 10 indicated wire supplied, by means of the cutting device 1 pieces of wire specified Length should be cut off.
  • the invention Device for determining the feeding speed of the wire 10 on this device is in the illustrated embodiment of formed a pair of rollers 11 through which the supplied Wire 10 is passed and by means of which Wire feed speed can be determined.
  • This Wire feed speed is increased by the pair of rollers 11 electronically or mechanically as a control variable the knife drive motor 9, which then transmits such is controlled that its output rotational speed is below
  • the gear ratios (pulleys 6, 8) is such that the peripheral speed the knife 2, 2a with the wire feed speed is synchronized, i.e. matches this to a relative movement between the wire to be cut 10 and the cutting blades 2, 2a to avoid.
  • the device according to the invention also has also a device for moving the wire out 10 from the cutting knife level, this facility is in the illustrated embodiment from a transverse to Wire feed direction movable roller pair 12 is formed.
  • the device 1 has in addition to the toothed belt drive 6, 7, 8 another superposition gear, which is designated in the drawing with 13 and in the embodiment from the aforementioned planetary gear is formed, on the housing of which the pulley 6 is arranged is.
  • the input shaft of the planetary gear 13 is connected to its own motor drive 14. This Servo drive controls the advance and retardation of the knives, as explained below.
  • the device according to the invention can be used with such a device Carry out the procedure as follows:
  • the feeding speed of the wire constantly detected and the motor 9 constantly adjusted to speed fluctuations in the Balance wire feed so that the peripheral speed the knife 2, 2a the feed speed of the Wire 10 corresponds.
  • the knives come with this Speed driven continuously so that the Knife once per revolution in the cutting plane hit and cut the wire 10 if it is in the Cutting plane. It would be with this way of working constantly cut pieces of wire, their length exactly the circumference of the flight circle of the cutting knives 2, 2a corresponds. Because of this scope of the flight circle, for example 750 mm and often longer pieces of wire are desired, it is with the device according to the invention first possible in the simplest way, integer Multiples of this circumference for those to be cut To realize pieces of wire.
  • the pair of rollers 12 with which it is possible, the incoming To move wire 10 clocked out of the cutting plane. For example, if a piece of wire is cut off whose length is twice as long as the flight circle the cutting knife 2, 2a, the pair of rollers 12 controlled so that the wire is outside the cutting plane to be led. Should a piece of wire of length n * circumference of the circle are cut, so after the n-1st Passage of the knife through the cutting area of the wire pivoted into the cutting plane. At the nth passage of the Knives through the cutting area then make the cut. Then the wire is passed through the pair of rollers to the next one Cut out of the cutting plane again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Shearing Machines (AREA)
  • Wire Processing (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP98123885A 1997-12-19 1998-12-16 Dispositif de coupage de fil en tronçons de longeurs prédéterminées Expired - Lifetime EP0924007B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19756665A DE19756665A1 (de) 1997-12-19 1997-12-19 Verfahren zum Abscheiden von Drahtstücken vorgegebener Länge von einem Draht sowie Vorrichtung zur Durchführung dieses Verfahrens
DE19756665 1997-12-19

Publications (3)

Publication Number Publication Date
EP0924007A2 true EP0924007A2 (fr) 1999-06-23
EP0924007A3 EP0924007A3 (fr) 2000-03-08
EP0924007B1 EP0924007B1 (fr) 2003-06-04

Family

ID=7852605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98123885A Expired - Lifetime EP0924007B1 (fr) 1997-12-19 1998-12-16 Dispositif de coupage de fil en tronçons de longeurs prédéterminées

Country Status (4)

Country Link
EP (1) EP0924007B1 (fr)
AT (1) ATE242069T1 (fr)
DE (2) DE19756665A1 (fr)
ES (1) ES2196472T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2221667C1 (ru) * 2002-11-04 2004-01-20 Волгоградский государственный технический университет Устройство для резки проволоки на заготовки
DE102010011735B3 (de) * 2010-03-17 2011-07-28 Wafios AG, 72764 Anordnung zum Ablängen von Nagelrohlingen von einem intermittierend zugeführten Draht
CN106001323A (zh) * 2016-05-09 2016-10-12 禹伟 一种自动裁线机压片定位滑块
CN107838337A (zh) * 2017-11-28 2018-03-27 盐城来拾集装箱有限公司 一种建筑用钢筋切断机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1355123A (fr) * 1963-03-28 1964-03-13 Morgardshammars Mek Verkst Sa Procédé et dispositif pour le cisaillage à la volée
DE1552709A1 (de) * 1966-03-21 1970-02-12 Wissenschaftlich Tech Zentrum Fliegende Trommelschere zum Querteilen von laufendem Schneidgut in stufenlos einstellbare Laengen
DE1989826U (de) * 1968-04-20 1968-07-25 Albert K G Maschf Vorrichtung zur herstellung von drahtstaeben in fixen laengen.
DE2458763C2 (de) * 1974-12-12 1982-03-25 Schloemann-Siemag AG, 4000 Düsseldorf Drehzahlregelkreis mit überlagerter Wegregelung für rotierende Scheren oder auf Schlitten geführte Zerteilvorrichtungen im Anlauf- oder Durchlaufbetrieb
DE4218962A1 (de) * 1992-06-10 1993-12-16 Klaus Dr Theis Drahtabschneidvorrichtung

Also Published As

Publication number Publication date
EP0924007A3 (fr) 2000-03-08
ATE242069T1 (de) 2003-06-15
DE19756665A1 (de) 1999-07-01
ES2196472T3 (es) 2003-12-16
DE59808614D1 (de) 2003-07-10
EP0924007B1 (fr) 2003-06-04

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