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EP0564444A1 - Device for continuously feeding bar material to a processing apparatus - Google Patents

Device for continuously feeding bar material to a processing apparatus Download PDF

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Publication number
EP0564444A1
EP0564444A1 EP93890068A EP93890068A EP0564444A1 EP 0564444 A1 EP0564444 A1 EP 0564444A1 EP 93890068 A EP93890068 A EP 93890068A EP 93890068 A EP93890068 A EP 93890068A EP 0564444 A1 EP0564444 A1 EP 0564444A1
Authority
EP
European Patent Office
Prior art keywords
straightening
transport
feed
rollers
pair
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.)
Withdrawn
Application number
EP93890068A
Other languages
German (de)
French (fr)
Inventor
Klaus Dipl.-Ing. Ritter
Gerhard Dipl.-Ing. Dr. Ritter
Gerhard Dipl.-Ing. Schmidt
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.)
EVG Entwicklungs und Verwertungs GmbH
Original Assignee
EVG Entwicklungs und Verwertungs 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 EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
Publication of EP0564444A1 publication Critical patent/EP0564444A1/en
Withdrawn legal-status Critical Current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
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/02—Straightening

Definitions

  • the invention relates to a device for the continuous conveying of a strand of material from a material supply to a processing plant by rotating the strand of material about its longitudinal axis and straightening the same, with a straightening device with at least three driven straightening roller pairs arranged along a working line, one straightening roller of all straightening roller pairs by means of an adjusting device can be raised and lowered relative to the other straightening roller and the straightening rollers of each pair of straightening rollers can be adjusted by means of a further adjusting device for rotating the strand of material to be straightened about its longitudinal axis.
  • a straightening machine for tubes and rods is known, with at least three driven roller pairs, each with a raise and lower roller, with a device for lifting and lowering the middle pair of rollers for the purpose of displacing them relative to the one to be straightened Good and relative to the other two pairs of rollers and with an adjusting device for the rollers of each pair, with which a rotation of the material to be straightened is effected.
  • one of the rollers of each pair of rollers is adjustable relative to the other roller by means of a hydraulic device, and each of the rollers is parabolic and adjustable at an angle to the direction of movement of the material to be straightened, so that the material is rotated about its axis as it passes through the roller pairs.
  • the pair of straightening rollers is preceded by a pair of pinch rollers, which feeds the material to be straightened to the straightening rollers and is lifted into the first pair of straightening rollers when the front end of the material to be straightened enters.
  • the known straightening machine can only be used for individually cut-to-length pipes and rods, because twisting of a strand of material continuously withdrawn from a material supply has no effect on the material supply with the aid of this device would not be possible.
  • the object of the invention is to provide a device of the type specified in the introduction, which enables a continuous conveyance of a strand of material from a material supply to a processing plant for the strand of material by twisting and straightening the same. At the same time, the straightened strand of material is to be kept in alignment with the working line of the processing system even after leaving the device without mechanical aids in the downstream processing system.
  • the device according to the invention is characterized in that, along the working line in the production direction, one after the other a counter-twist device with at least one pair of opposite feed disks drivable in both directions of rotation, the straightening device and a feed device with at least one pair of opposite feed disks drivable in both directions of rotation are provided, that each transport disc is assigned a feed disc lying on the same side of the working line, that the feed discs of the counter-twist device and the transport discs of the pair of transport discs can be inclined in opposite directions to the working line, and each feed disc in opposite directions to the associated transport disc is employable.
  • the feed discs of the counter twist device can each be inclined at an angle to the working line which is less than or equal to the angle of attack of the corresponding transport discs of the pair of transport discs.
  • the invention is characterized in that the straightening device, as known per se, has a first straightening device provided with straightening rollers and a second straightening device rotated by 90 ° with respect to it and provided with straightening rollers, the straightening rollers being arranged in opposite rows and at least the straightening rollers of one row can be pivoted individually against the straightening rollers of the other row with the aid of an actuator assigned to each straightening roller.
  • the feed device is preferably followed by a post-dressing device provided with dressing rolls, the dressing rolls being arranged in opposite rows and at least the dressing rolls of one row being pivotable against the dressing rolls of the other row by means of an actuator assigned to each dressing roll.
  • FIG. 1 and 2 is schematically shown a stationary, rotatable about its longitudinal axis supply spool 1 for a strand of material which is removed from the supply spool 1 with the aid of a conveying and straightening device 2, straightened and along a work line XX in the production direction P 1 in a downstream Processing plant 3 is promoted as a bending and cutting machine or only can be designed as a cutting system.
  • the conveying and straightening device 2 has, along the working line X-X, a counter-turning device 4, a horizontal straightening device 5, a vertical straightening device 6, a feed device 7, a length measuring device 8 and a post-dressing device 9.
  • the counter-rotation device 4 consists of an upper feed disk 12 which can be driven in both directions of rotation according to the double arrow P 2 by means of a drive device 10 about a horizontal axis of rotation 11.
  • the upper feed disk 12 is in a support plate 13 with the aid of a pivot bearing 14 about a vertical running perpendicular to the axis of rotation 11
  • Pivot axis 15 is pivotally mounted according to the double arrow P3.
  • the upper feed disc 12 is also displaceable along the pivot axis 15 with the aid of an adjusting device 16 in accordance with the double arrow P4 against an opposite lower feed disc 17 and interacts with it.
  • the lower feed disc 17 can be driven in both directions of rotation according to the double arrow P5 by means of a drive device 18 about a horizontal axis of rotation 19 and in the support plate 13 with the aid of a pivot bearing 20 about the vertical pivot axis 15 common to the upper feed disc 12 in accordance with the double arrow P6 .
  • the two feed disks 12, 17 lie in a vertical plane in the exemplary embodiment shown.
  • the horizontal straightening device 5 comprises a plurality of rotatably mounted front straightening rollers 21 and a plurality of rotatably mounted rear straightening rollers 22 which are arranged opposite and offset from the front straightening rollers 21.
  • the front straightening rollers 21 can be pivoted individually with the aid of an actuator 23 according to the double arrow P7 against the rear straightening rollers 22.
  • the vertical straightening device 6 is constructed analogously to the horizontal straightening device 5 and consists of a plurality of rotatably mounted upper straightening rollers 24 and a plurality of rotatably mounted lower straightening rollers 25 which are arranged opposite and offset from the upper straightening rollers 24.
  • the upper straightening rollers 24 can be pivoted individually with the aid of an actuator 26 according to the double arrow P8 against the lower straightening rollers 25.
  • the feed device 7 consists of at least two pairs of transport disks 27 and 27 '.
  • the pair of transport disks 27 has an upper transport disk 30 which can be driven in both directions of rotation in accordance with the double arrow P9 by means of a drive device 28 about its horizontal axis of rotation 29.
  • the upper transport disc 30 is pivotally mounted in a base plate 31 with the aid of a pivot bearing 32 about a vertical pivot axis 33 running perpendicular to the corresponding axis of rotation 29 in accordance with the double arrow P 1.
  • the upper transport disc 30 is displaceable along the pivot axis 33 with the aid of an adjusting device 34 according to the double arrow P 1 1 against an opposite lower transport disc 35 and interacts with it.
  • the lower transport disc 35 can be driven in both directions of rotation according to the double arrow P12 with the aid of a drive device 36 about a horizontal axis of rotation 37 and in the base plate 31 with the aid of a pivot bearing 38 about the vertical pivot axis 33 common to the upper transport disc 30 according to the double arrow P13 stored.
  • the second pair of transport disks 27 ' is constructed in the same way. 1 and 2, the reference numerals of the elements of the second pair of transport disks 27 ', which correspond to the elements of the second pair of transport disks 27, are identified identically, but are provided with an apostrophe.
  • the transport disks 30, 30 ', 35, 35' of the feed device 7 lie in a vertical plane in their rest position. As part of the According to the invention, however, it is also possible to arrange the transport disks 30, 30 ', 35, 35' in their rest position in a horizontal plane. In the context of the invention, the plane of the transport disks 30, 30 ', 35, 35' of the transport device 7 can also coincide with the plane of the feed disks 12, 17 of the counter-twist device 4, as shown in FIGS. 1 and 2, in the rest position or it the planes can run at an angle of 90 ° to each other.
  • All feed disks 12, 17, all straightening rollers 21, 22, 24, 25 and all transport disks 30, 30 ', 35, 35' are provided with a circumferential groove 39 which is adapted to the shape and diameter of the material strand.
  • the feed and transport disks and the straightening rollers have two correspondingly shaped circumferential grooves 39 arranged next to one another at a distance.
  • the surfaces of the circumferential grooves 39 of these disks can be roughened, for example knurled or serrated.
  • the upper transport disks 30, 30 ' are one by the diameter and the material properties of the strand of material dependent swivel angle and the lower transport disc 35, 35 'by the same swivel angle, but with the opposite direction according to the double arrow P10, P10, or P13, P13, pivoted about the pivot axes 33 and 33' from their rest position.
  • the transport disks 30, 30 'and 35, 35' then assume a working position in which, as shown in FIGS. 1 and 2, they are each made at an angle to the working line XX, the angles for the upper and lower ones Transport discs have the same amount, but are opposite in the direction of direction.
  • the twisting of the strand of material through the inclined transport discs is not only, as desired, in the direction of production P 1 towards the processing system 3, but also in the opposite direction in the direction of the supply reel 1. Since the strand of material is firmly clamped at one end in the supply spool 1, the material strand is twisted more and more by the backward rotation of the material strand between the supply spool 1 and the feed device 7 as the production time progresses, so that a withdrawal of the material strand from the supply spool 1 is no longer possible and there is permanent deformation or even tearing of the strand of material.
  • the feed disks 12 and 17 of the counter twist device 4 are inclined in the opposite direction to the corresponding transport disks 30, 30 'and 35, 35' of the feed device 7; So if, for example, as shown in FIGS. 1 and 2, the two upper transport discs 30, 30 'from the vertical plane through the working line XX seen in the direction of production P 1 are pivoted to the right, the upper feed disc 12 of the counter-rotation device 4 in be pivoted to the left in the opposite direction. This applies analogously to the pivoting of the lower feed disk 17, which is pivoted to the right in the opposite direction.
  • a counter-twist is generated by means of the counter-turning device 4 in the material strand, which counteracts the backward-directed longitudinal twist generated in the material strand by the feed device 7 and picks it up.
  • the amounts of the pivot angles of the transport disks 30, 30 'or 35, 35' and the feed disks 12 or 17 are preferably the same, but can also be different within the scope of the invention. Since the strand of material between the straightening rollers of the straightening devices 5 and 6 must be clamped relatively strongly in order to achieve a straightening effect in the material strand, the straightening devices also partially prevent the backward rotation of the material strand, so that the swivel angle of the feed disks of the counter-twist device 4 can optionally be selected to be smaller than the swivel angle of the transport disk of the feed device 7.
  • each pair of transport disks being inclined at a different angle.
  • the design of the transport discs is changed such that a single wire runs through the circumferential groove 39 in the inclined transport discs 30, 35 of the first pair of transport discs 27 and is thereby rotated about its longitudinal axis, while the second individual wire in the first pair of transport discs 27 on a smooth Running surface of the transport discs 30, 35 passes freely.
  • the first twisted individual wire runs freely on a smooth running surface of the transport discs 30', 35 'of the second pair of transport discs 27' which are inclined at a different angle, while the second individual wire runs through the circumferential groove 39 of the transport discs 30 ', 35'. of the second pair of transport disks 27 'runs and is thereby rotated about its longitudinal axis.
  • two counter twisting devices must also be provided in order to prevent the individual wires from twisting in the supply coils for the individual wires, which are then also present twice.
  • the length measuring device 8 has a measuring wheel 40 and an opposing counter roller 41, the measuring wheel 40 being pressed against the intermediate strand of material with the aid of a pivoting lever 42 in order to ensure a secure frictional connection between the measuring wheel 40 and the strand of material.
  • the post-dressing device 9 has at least two rotatable upper dressing rollers 43 and at least two rotatably mounted lower dressage rollers 44, which are arranged opposite and offset from the upper dressage rollers 43.
  • the upper dressage rollers 43 are individually pivotable with the help of an actuator 45 according to the double arrow P14 against the lower dressage rollers 44.
  • any deviations caused by the transport disks 30, 30 ', 35, 35' of the feed device 7 are compensated for by the straightening of the material strand in the straightening devices 5 and 6. Since experience has shown that these deviations are small, only small straightening forces are required, so that the number of dressing rollers 43, 44 of the post-dressing device 9 can be smaller than the respective number of straightening rollers 21, 22 and 24, 25 per straightening device 5 and 6. Also the dressage rollers 43, 44 are provided with a circumferential groove 39 which is adapted to the shape and diameter of the strand of material.
  • the conveyor and straightening device 2 works in the following way: To thread the strand of material, the roller gaps between the upper and lower feed disks 12 and 17, the front and rear straightening rollers 21 and 22, the upper and lower straightening rollers 24 and 25, respectively upper and lower transport discs 30, 30 'and 35, 35' and the upper and lower dressing rollers 43 and 44 opened so far that the strand of material can be pushed through without great effort on the one hand and on the other hand is safely guided within the rollers and discs.
  • the through openings formed by the two circumferential grooves 39 between the straightening rollers, the transport disks and the dressing rollers must lie in a continuous line running parallel to the working line X-X, so that, if necessary, the corresponding devices must be designed to be pivotable in order to meet this condition.
  • the upper feed roller 12 of the counter twist device 4 After threading the strand of material, the upper feed roller 12 of the counter twist device 4, the front straightening rollers 21 of the horizontal straightening device 5, the upper straightening rollers 24 of the vertical straightening device 6, the upper transport disks 30, 30 'of the feed device 7 and the upper dressing rollers 43 of the postdressing device 9 pivoted into its working position, in which the strand of material is drawn from the supply spool 1 without slippage, straightened and, if necessary, rotated about its longitudinal axis and fed to the processing system 3.
  • the feed device 7 can be designed in such a way that only one row of the transport disks is driven, while the other opposite transport disks are designed as freely rotating counter-rollers, which may also have a smaller disk diameter than the driven transport disks.
  • the number of pairs of transport disks is also freely selectable and depends on the maximum frictional engagement that can be generated between the strand of material and the conveying disks, a slip-free conveying of the strand of material having to be ensured without damaging its surface.
  • the counter twist device 4 and the feed device 7 are provided with corresponding measuring devices (not shown) for the swivel angle, which enable a reproducible angle setting at any time.
  • more than two straightening devices can also be provided.
  • the planes in which the straightening rollers of the straightening devices lie can have any inclinations, whereby it turns out to be has proven to be advantageous to arrange at least two straightening devices in such a way that the levels of the straightening rollers of one straightening device are rotated by 90 ° to the level of the straightening rollers of the other straightening device.
  • other types of straightening devices for example those with a rotating rotor, between the counter-twisting device and the feed device, the number of which can be selected as desired.
  • the operation of the device according to the invention is controlled by an electronic control device, not shown.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)

Abstract

Device for the continuous feeding of bar material from a supply of material to a processing apparatus while rotating the bar material about its longitudinal axis and straightening the latter, with a straightening device having at least three driven pairs of straightening rollers arranged along a working line (X-X), a counter-twist device (4) with at least one pair of mutually opposite feed pulleys (12, 17) drivable in both directions of rotation, the straightening device (5, 6) and a feed device (7) with at least one pair (27, 27') of mutually opposite transport pulleys (30, 35; 30', 35') drivable in both directions of rotation being provided one after the other in the production direction (P1), along the working line, to each of which is assigned a feed pulley situated on the same side of the working line (X-X), the feed pulleys of the counter-twist device and the transport pulleys of the transport-pulley pair each being capable of being set so as to be inclined in the opposite sense relative to the working line and each feed pulley being capable of being set in the opposite sense to the associated transport pulley. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum kontinuierlichen Fördern eines Materialstranges von einem Materialvorrat zu einer Verarbeitungsanlage unter Verdrehen des Materialstranges um seine Längsachse und Richten desselben, mit einer Richteinrichtung mit zumindest drei angetriebenen, entlang einer Arbeitslinie angeordneten Richtrollenpaaren, wobei je eine Richtrolle aller Richtrollenpaare mittels einer Stelleinrichtung gegenüber der anderen Richtrolle heb- und senkbar ist und die Richtrollen jedes Richtrollenpaares zum Drehen des zu richtenden Materialstranges um seine Längsachse mittels einer weiteren Stelleinrichtung anstellbar sind.The invention relates to a device for the continuous conveying of a strand of material from a material supply to a processing plant by rotating the strand of material about its longitudinal axis and straightening the same, with a straightening device with at least three driven straightening roller pairs arranged along a working line, one straightening roller of all straightening roller pairs by means of an adjusting device can be raised and lowered relative to the other straightening roller and the straightening rollers of each pair of straightening rollers can be adjusted by means of a further adjusting device for rotating the strand of material to be straightened about its longitudinal axis.

Aus der DE-OS 1 752 511 ist eine Richtmaschine für Rohre und Stangen bekannt, mit mindestens drei angetriebenen Walzenpaaren mit je einer heb- und senkbaren Walze, mit einer Einrichtung zum gemeinsamen Heben und Senken des mittleren Walzenpaares zwecks Versetzen desselben relativ zu dem zu richtenden Gut und relativ zu den beiden anderen Walzenpaaren und mit einer Stelleinrichtung für die Walzen jedes Paares, mit welcher ein Drehen des zu richtenden Gutes bewirkt wird. Hiebei ist jeweils eine der Walzen jedes Walzenpaares gegenüber der anderen Walze mittels einer Hydraulikeinrichtung verstellbar und jede der Walzen ist parabolisch und zur Bewegungsrichtung des zu richtenden Gutes unter einem Winkel anstellbar, damit das Gut während seines Durchlaufes durch die Walzenpaare um seine Achse gedreht wird. Den Richtwalzenpaaren ist ein Anklemmwalzenpaar vorgeschaltet, welches das zu richtende Gut den Richtwalzen zuführt und im Zeitpunkt des Eintrittes des vorderen Endes des zu richtenden Gutes in das erste Richtwalzenpaar angehoben wird. Die bekannte Richtmaschine ist nur für einzelne abgelängte Rohre und Stangen verwendbar, weil ein Verdrehen eines kontinuierlich von einem Materialvorrat abgezogenen Materialstranges ohne Rückwirkung auf den Materialvorrat mit Hilfe dieser Vorrichtung nicht möglich wäre.From DE-OS 1 752 511 a straightening machine for tubes and rods is known, with at least three driven roller pairs, each with a raise and lower roller, with a device for lifting and lowering the middle pair of rollers for the purpose of displacing them relative to the one to be straightened Good and relative to the other two pairs of rollers and with an adjusting device for the rollers of each pair, with which a rotation of the material to be straightened is effected. Here, one of the rollers of each pair of rollers is adjustable relative to the other roller by means of a hydraulic device, and each of the rollers is parabolic and adjustable at an angle to the direction of movement of the material to be straightened, so that the material is rotated about its axis as it passes through the roller pairs. The pair of straightening rollers is preceded by a pair of pinch rollers, which feeds the material to be straightened to the straightening rollers and is lifted into the first pair of straightening rollers when the front end of the material to be straightened enters. The known straightening machine can only be used for individually cut-to-length pipes and rods, because twisting of a strand of material continuously withdrawn from a material supply has no effect on the material supply with the aid of this device would not be possible.

Aufgabe der Erfindung ist es, eine Vorrichtung der einleitend angegebenen Art zu schaffen, die eine kontinuierliche Förderung eines Materialstranges von einem Materialvorrat zu einer Verarbeitungsanlage für den Materialstrang unter Verdrehen und Richten desselben ermöglicht. Dabei soll zugleich der geradegerichtete Materialstrang auch nach dem Verlassen der Vorrichtung ohne mechanische Hilfsmittel in der nachgeschalteten Verarbeitungsanlage in Flucht mit der Arbeitslinie der Verarbeitungsanlage gehalten werden.The object of the invention is to provide a device of the type specified in the introduction, which enables a continuous conveyance of a strand of material from a material supply to a processing plant for the strand of material by twisting and straightening the same. At the same time, the straightened strand of material is to be kept in alignment with the working line of the processing system even after leaving the device without mechanical aids in the downstream processing system.

Wird als Verarbeitungsanlage eine Biegemaschine für Bewehrungsbügel verwendet, so tritt das Problem auf, daß auf Grund der Materialrückfederung des Materialstranges nach dem Biegen, auf Grund einer unterschiedlichen Biegegeometrie, die durch Durchmesserdifferenzen innerhalb eines Stranges bedingt ist, und auf Grund eines bereits vorhandenen unerwünschten Längsdralls im Materialstrang die Schenkel des fertiggebogenen Bügels nicht in einer Ebene liegen, sondern mehr oder weniger auseinanderklaffen. Mit der erfindungsgemäßen Vorrichtung soll daher zusätzlich einen unerwünschten Längsdrall im Materialstrang kompensiert werden.If a bending machine for reinforcement stirrups is used as the processing system, the problem arises that due to the springback of the material strand after bending, due to a different bending geometry, which is caused by diameter differences within a strand, and due to an already existing undesired longitudinal twist in the The legs of the bent bow do not lie on one level of material, but more or less apart. With the device according to the invention, therefore, an undesirable longitudinal twist in the material strand is also to be compensated.

Die erfindungsgemäße Vorrichtung zeichnet sich dadurch aus, daß entlang der Arbeitslinie in Produktionsrichtung gesehen hintereinander eine Gegendralleinrichtung mit zumindest einem Paar von in beiden Drehrichtungen antreibbaren gegenüberliegenden Vorschubscheiben, die Richteinrichtung und eine Vorschubeinrichtung mit zumindest einem Paar von in beiden Drehrichtungen antreibbaren, gegenüberliegenden Transportscheiben vorgesehen sind, daß jeder Transportscheibe eine auf derselben Seite der Arbeitslinie liegende Vorschubscheibe zugeordnet ist, daß die Vorschubscheiben der Gegendralleinrichtung und die Transportscheiben des Transportscheibenpaares zur Arbeitslinie jeweils gegensinnig geneigt anstellbar sind und jede Vorschubscheibe gegensinnig zur zugehörigen Transportscheibe anstellbar ist.The device according to the invention is characterized in that, along the working line in the production direction, one after the other a counter-twist device with at least one pair of opposite feed disks drivable in both directions of rotation, the straightening device and a feed device with at least one pair of opposite feed disks drivable in both directions of rotation are provided, that each transport disc is assigned a feed disc lying on the same side of the working line, that the feed discs of the counter-twist device and the transport discs of the pair of transport discs can be inclined in opposite directions to the working line, and each feed disc in opposite directions to the associated transport disc is employable.

Gemäß einer bevorzugten Ausführungsform der Erfindung sind die Vorschubscheiben der Gegendralleinrichtung jeweils unter einem Winkel zur Arbeitslinie geneigt anstellbar, der kleiner oder gleich dem Anstellwinkel der entsprechenden Transportscheiben des Transportscheibenpaares ist.According to a preferred embodiment of the invention, the feed discs of the counter twist device can each be inclined at an angle to the working line which is less than or equal to the angle of attack of the corresponding transport discs of the pair of transport discs.

Nach einem anderen Merkmal zeichnet sich die Erfindung dadurch aus, daß die Richteinrichtung, wie an sich bekannt, eine mit Richtrollen versehene erste Richteinrichtung und eine dieser gegenüber um 90° verdrehte, mit Richtrollen versehene zweite Richteinrichtung aufweist, wobei die Richtrollen in gegenüberliegenden Reihen angeordnet sind und zumindest die Richtrollen einer Reihe gegen die Richtrollen der anderen Reihe einzeln mit Hilfe eines jeder Richtrolle zugeordneten Stellantriebes verschwenkbar sind.According to another feature, the invention is characterized in that the straightening device, as known per se, has a first straightening device provided with straightening rollers and a second straightening device rotated by 90 ° with respect to it and provided with straightening rollers, the straightening rollers being arranged in opposite rows and at least the straightening rollers of one row can be pivoted individually against the straightening rollers of the other row with the aid of an actuator assigned to each straightening roller.

Vorzugsweise ist der Vorschubeinrichtung eine mit Dressurrollen versehene Nachdressureinrichtung nachgeschaltet, wobei die Dressurrollen in gegenüberliegenden Reihen angeordnet und zumindest die Dressurrollen einer Reihe gegen die Dressurrollen der anderen Reihe mit Hilfe eines jeder Dressurrolle zugeordneten Stellantriebes verschwenkbar sind.The feed device is preferably followed by a post-dressing device provided with dressing rolls, the dressing rolls being arranged in opposite rows and at least the dressing rolls of one row being pivotable against the dressing rolls of the other row by means of an actuator assigned to each dressing roll.

Weitere Merkmale der Erfindung werden nachfolgend an hand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigen:

  • Fig. 1 eine Seitenansicht einer Förder- und Richtvorrichtung gemäß der Erfindung sowie nur schematisch angedeutet eine Vorratsspule und eine Verarbeitungsanlage für den Materialstrang,
  • und Fig. 2 eine entsprechende Draufsicht der in Fig. 1 dargestellten Vorrichtung.
Further features of the invention are explained in more detail below using an exemplary embodiment shown in the drawings. Show it:
  • 1 is a side view of a conveyor and straightening device according to the invention and only schematically indicated a supply spool and a processing system for the strand of material,
  • and FIG. 2 shows a corresponding top view of the device shown in FIG. 1.

In den Fig. 1 und 2 ist schematisch eine ortsfeste, um ihre Längsachse drehbare Vorratsspule 1 für einen Materialstrang dargestellt, der von der Vorratsspule 1 mit Hilfe einer Förder- und Richtvorrichtung 2 abgezogen, geradegerichtet und entlang einer Arbeitslinie X-X in Produktionsrichtung P₁ in eine nachgeschaltete Verarbeitungsanlage 3 gefördert wird, die als Biege- und Schneidanlage oder nur als Schneidanlage ausgebildet sein kann.1 and 2 is schematically shown a stationary, rotatable about its longitudinal axis supply spool 1 for a strand of material which is removed from the supply spool 1 with the aid of a conveying and straightening device 2, straightened and along a work line XX in the production direction P 1 in a downstream Processing plant 3 is promoted as a bending and cutting machine or only can be designed as a cutting system.

Die Förder- und Richtvorrichtung 2 weist entlang der Arbeitslinie X-X hintereinander eine Gegendralleinrichtung 4, eine horizontale Richteinrichtung 5, eine vertikale Richteinrichtung 6, eine Vorschubeinrichtung 7, eine Längenmeßeinrichtung 8 und eine Nachdressureinrichtung 9 auf.The conveying and straightening device 2 has, along the working line X-X, a counter-turning device 4, a horizontal straightening device 5, a vertical straightening device 6, a feed device 7, a length measuring device 8 and a post-dressing device 9.

Die Gegendralleinrichtung 4 besteht aus einer in beiden Drehrichtungen entsprechend dem Doppelpfeil P₂ mittels einer Antriebseinrichtung 10 um eine horizontale Drehachse 11 antreibbaren oberen Vorschubscheibe 12. Die obere Vorschubscheibe 12 ist in einer Tragplatte 13 mit Hilfe einer Schwenklagerung 14 um eine senkrecht zur Drehachse 11 verlaufende, vertikale Schwenkachse 15 entsprechend dem Doppelpfeil P₃ schwenkbar gelagert. Die obere Vorschubscheibe 12 ist außerdem entlang der Schwenkachse 15 mit Hilfe einer Verstelleinrichtung 16 entsprechend dem Doppelpfeil P₄ gegen eine gegenüberliegende untere Vorschubscheibe 17 verschiebbar und wirkt mit dieser zusammen.The counter-rotation device 4 consists of an upper feed disk 12 which can be driven in both directions of rotation according to the double arrow P 2 by means of a drive device 10 about a horizontal axis of rotation 11. The upper feed disk 12 is in a support plate 13 with the aid of a pivot bearing 14 about a vertical running perpendicular to the axis of rotation 11 Pivot axis 15 is pivotally mounted according to the double arrow P₃. The upper feed disc 12 is also displaceable along the pivot axis 15 with the aid of an adjusting device 16 in accordance with the double arrow P₄ against an opposite lower feed disc 17 and interacts with it.

Die untere Vorschubscheibe 17 ist in beiden Drehrichtungen entsprechend dem Doppelpfeil P₅ mit Hilfe einer Antriebseinrichtung 18 um eine horizontale Drehachse 19 antreibbar und in der Tragplatte 13 mit Hilfe einer Schwenklagerung 20 um die mit der oberen Vorschubscheibe 12 gemeinsame vertikale Schwenkachse 15 entsprechend dem Doppelpfeil P₆ schwenkbar gelagert. In ihrer Ruhestellung liegen die beiden Vorschubscheiben 12, 17 beim gezeigten Ausführungsbeispiel in einer Vertikalebene. Im Rahmen der Erfindung ist es jedoch auch möglich, die Vorschubscheiben 12, 17 in einer Horizontalebene anzuordnen.The lower feed disc 17 can be driven in both directions of rotation according to the double arrow P₅ by means of a drive device 18 about a horizontal axis of rotation 19 and in the support plate 13 with the aid of a pivot bearing 20 about the vertical pivot axis 15 common to the upper feed disc 12 in accordance with the double arrow P₆ . In their rest position, the two feed disks 12, 17 lie in a vertical plane in the exemplary embodiment shown. However, within the scope of the invention it is also possible to arrange the feed disks 12, 17 in a horizontal plane.

Die horizontale Richteinrichtung 5 besteht aus mehreren drehbar gelagerten vorderen Richtrollen 21 und aus mehreren drehbar gelagerten hinteren Richtrollen 22, die gegenüber den vorderen Richtrollen 21 und versetzt zu diesen angeordnet sind. Die vorderen Richtrollen 21 sind einzeln mit Hilfe je eines Stellantriebes 23 entsprechend dem Doppelpfeil P₇ gegen die hinteren Richtrollen 22 schwenkbar.The horizontal straightening device 5 comprises a plurality of rotatably mounted front straightening rollers 21 and a plurality of rotatably mounted rear straightening rollers 22 which are arranged opposite and offset from the front straightening rollers 21. The front straightening rollers 21 can be pivoted individually with the aid of an actuator 23 according to the double arrow P₇ against the rear straightening rollers 22.

Die vertikale Richteinrichtung 6 ist analog zur horizontalen Richteinrichtung 5 aufgebaut und besteht aus mehreren drehbar gelagerten oberen Richtrollen 24 und mehreren drehbar gelagerten unteren Richtrollen 25, die gegenüber den oberen Richtrollen 24 und versetzt zu diesen angeordnet sind. Die oberen Richtrollen 24 sind einzeln mit Hilfe je eines Stellantriebes 26 entsprechend dem Doppelpfeil P₈ gegen die unteren Richtrollen 25 schwenkbar.The vertical straightening device 6 is constructed analogously to the horizontal straightening device 5 and consists of a plurality of rotatably mounted upper straightening rollers 24 and a plurality of rotatably mounted lower straightening rollers 25 which are arranged opposite and offset from the upper straightening rollers 24. The upper straightening rollers 24 can be pivoted individually with the aid of an actuator 26 according to the double arrow P₈ against the lower straightening rollers 25.

Die Vorschubeinrichtung 7 besteht aus zumindest zwei Transportscheibenpaaren 27 und 27'. Das Transportscheibenpaar 27 weist eine in beiden Drehrichtungen entsprechend dem Doppelpfeil P₉ mit Hilfe einer Antriebseinrichtung 28 um ihre horizontale Drehachse 29 antreibbare obere Transportscheibe 30 auf. Die obere Transportscheibe 30 ist in einer Grundplatte 31 mit Hilfe einer Schwenklagerung 32 um eine senkrecht zur entsprechenden Drehachse 29 verlaufende vertikale Schwenkachse 33 entsprechend dem Doppelpfeil P₁₀ schwenkbar gelagert. De obere Transportscheibe 30 ist entlang der Schwenkachse 33 mit Hilfe einer Verstelleinrichtung 34 entsprechend dem Doppelpfeil P₁₁ gegen eine gegenüberliegende untere Transportscheibe 35 verschiebbar und wirkt mit dieser zusammen.The feed device 7 consists of at least two pairs of transport disks 27 and 27 '. The pair of transport disks 27 has an upper transport disk 30 which can be driven in both directions of rotation in accordance with the double arrow P₉ by means of a drive device 28 about its horizontal axis of rotation 29. The upper transport disc 30 is pivotally mounted in a base plate 31 with the aid of a pivot bearing 32 about a vertical pivot axis 33 running perpendicular to the corresponding axis of rotation 29 in accordance with the double arrow P 1. The upper transport disc 30 is displaceable along the pivot axis 33 with the aid of an adjusting device 34 according to the double arrow P 1 ₁ against an opposite lower transport disc 35 and interacts with it.

Die untere Transportscheibe 35 ist in beiden Drehrichtungen entsprechend dem Doppelpfeil P₁₂ mit Hilfe einer Antriebseinrichtung 36 um eine horizontale Drehachse 37 antreibbar und in der Grundplatte 31 mit Hilfe einer Schwenklagerung 38 um die mit der oberen Transportscheibe 30 gemeinsame, vertikale Schwenkachse 33 entsprechend dem Doppelpfeil P₁₃ schwenkbar gelagert.The lower transport disc 35 can be driven in both directions of rotation according to the double arrow P₁₂ with the aid of a drive device 36 about a horizontal axis of rotation 37 and in the base plate 31 with the aid of a pivot bearing 38 about the vertical pivot axis 33 common to the upper transport disc 30 according to the double arrow P₁₃ stored.

Das zweite Transportscheibenpaar 27' ist in gleicher Weise aufgebaut. In den Fig. 1 und 2 sind daher die Bezugsziffern der Elemente des zweiten Transportscheibenpaares 27', die den Elementen des zweiten Transportscheibenpaares 27 entsprechen, gleich bezeichnet, jedoch mit einem Apostroph versehen.The second pair of transport disks 27 'is constructed in the same way. 1 and 2, the reference numerals of the elements of the second pair of transport disks 27 ', which correspond to the elements of the second pair of transport disks 27, are identified identically, but are provided with an apostrophe.

Beim gezeigten Ausführungsbeispiel liegen die Transportscheiben 30, 30', 35, 35' der Vorschubeinrichtung 7 in ihrer Ruhestellung in einer vertikalen Ebene. Im Rahmen der Erfindung ist es jedoch auch möglich, die Transportscheiben 30, 30', 35, 35' in ihrer Ruhestellung in einer horizontalen Ebene anzuordnen. Im Rahmen der Erfindung kann ferner in der Ruhestellung die Ebene der Transportscheiben 30, 30', 35, 35' der Transporteinrichtung 7 mit der Ebene der Vorschubscheiben 12, 17 der Gegendralleinrichtung 4, wie in den Fig. 1 und 2 dargestellt, übereinstimmen oder es können die Ebenen unter einem Winkel von 90° zueinander verlaufen.In the exemplary embodiment shown, the transport disks 30, 30 ', 35, 35' of the feed device 7 lie in a vertical plane in their rest position. As part of the According to the invention, however, it is also possible to arrange the transport disks 30, 30 ', 35, 35' in their rest position in a horizontal plane. In the context of the invention, the plane of the transport disks 30, 30 ', 35, 35' of the transport device 7 can also coincide with the plane of the feed disks 12, 17 of the counter-twist device 4, as shown in FIGS. 1 and 2, in the rest position or it the planes can run at an angle of 90 ° to each other.

Alle Vorschubscheiben 12, 17, alle Richtrollen 21, 22, 24, 25 sowie alle Transportscheiben 30, 30', 35, 35' sind mit einer Umfangsnut 39 versehen, die an die Form und den Durchmesser des Materialstranges angepaßt ist. Bei einem Materialstrang, der aus zwei nebeneinanderliegenden Einzeldrähten, einem sogenannten Doppeldraht besteht, weisen die Vorschub- und Transportscheiben sowie die Richtrollen zwei entsprechend geformte, mit Abstand nebeneinander angeordnete Umfangsnuten 39 auf. Um den Reibungsschluß zwischen dem Materialstrang und den Vorschubscheiben 12, 17 sowie den Transportscheiben 30, 30', 35, 35' zu erhöhen, können die Oberflächen der Umfangsnuten 39 dieser Scheiben aufgerauht, beispielsweise gerändelt oder gezahnt sein.All feed disks 12, 17, all straightening rollers 21, 22, 24, 25 and all transport disks 30, 30 ', 35, 35' are provided with a circumferential groove 39 which is adapted to the shape and diameter of the material strand. In the case of a strand of material consisting of two individual wires lying next to one another, a so-called double wire, the feed and transport disks and the straightening rollers have two correspondingly shaped circumferential grooves 39 arranged next to one another at a distance. In order to increase the frictional engagement between the material strand and the feed disks 12, 17 and the transport disks 30, 30 ', 35, 35', the surfaces of the circumferential grooves 39 of these disks can be roughened, for example knurled or serrated.

Zur Verbesserung des Richteffektes und zum Verdrehen des Materialstranges um seine Längsachse, um entweder einen vorhandenen Längsdrall im Materialstrang zu kompensieren oder dem Materialstrang einen genau definierten Längsdrall zu geben, werden die oberen Transportscheiben 30, 30' um einen vom Durchmesser und von den Materialeigenschaften des Materialstranges abhängigen Schwenkwinkel und die untere Transportscheibe 35, 35' um den gleichen Schwenkwinkel, jedoch mit entgegengesetztem Richtungssinn entsprechend dem Doppelpfeil P₁₀, P₁₀, bzw. P₁₃, P₁₃, um die Schwenkachsen 33 bzw. 33' aus ihrer Ruhestellung geschwenkt. Die Transportscheiben 30, 30' bzw. 35, 35' nehmen dann eine Arbeitsstellung ein, in der sie, wie in den Fig. 1 und 2 dargestellt, jeweils unter einem Winkel zur Arbeitslinie X-X angestellt sind, wobei die Winkel für die oberen und unteren Transportscheiben im Betrag gleich, im Richtungssinn jedoch entgegengesetzt sind.In order to improve the straightening effect and to twist the strand of material about its longitudinal axis, either to compensate for an existing longitudinal twist in the strand of material or to give the strand of material a precisely defined longitudinal twist, the upper transport disks 30, 30 'are one by the diameter and the material properties of the strand of material dependent swivel angle and the lower transport disc 35, 35 'by the same swivel angle, but with the opposite direction according to the double arrow P₁₀, P₁₀, or P₁₃, P₁₃, pivoted about the pivot axes 33 and 33' from their rest position. The transport disks 30, 30 'and 35, 35' then assume a working position in which, as shown in FIGS. 1 and 2, they are each made at an angle to the working line XX, the angles for the upper and lower ones Transport discs have the same amount, but are opposite in the direction of direction.

Das Verdrehen des Materialstranges durch die schräggestellten Transportscheiben erfolgt jedoch nicht nur, wie gewünscht, in Produktionsrichtung P₁ in Richtung zur Verarbeitungsanlage 3 hin, sondern auch in entgegengesetzter Richtung in Richtung zur Vorratsspule 1 zurück. Da der Materialstrang an einem Ende in der Vorratsspule 1 fest eingespannt ist, wird durch das rückwärtsgerichtete Verdrehen des Materialstranges dieser zwischen der Vorratsspule 1 und der Vorschubvorrichtung 7 mit fortlaufender Produktionsdauer immer stärker verdrillt, so daß ein Abzug des Materialstranges von der Vorratsspule 1 nicht mehr möglich ist und es zu dauerhaften Verformungen oder sogar zum Abreißen des Materialstranges kommt. Um diesen unerwünschten Effekt zu verhindern, werden die Vorschubscheiben 12 bzw. 17 der Gegendralleinrichtung 4 im entgegengesetzten Richtungssinn zu den entsprechenden Transportscheiben 30, 30' bzw. 35, 35' der Vorschubeinrichtung 7 schräggestellt; wenn also beispielsweise, wie in den Fig. 1 und 2 dargestellt, die beiden oberen Transportscheiben 30, 30' aus der vertikalen, durch die Arbeitslinie X-X verlaufenden Ebene in Produktionsrichtung P₁ gesehen nach rechts geschwenkt werden, muß die obere Vorschubscheibe 12 der Gegendralleinrichtung 4 in entgegengesetzter Richtung nach links geschwenkt werden. Dies gilt in analoger Weise für das Verschwenken der unteren Vorschubscheibe 17, die in entgegengesetzter Richtung nach rechts geschwenkt wird.The twisting of the strand of material through the inclined transport discs is not only, as desired, in the direction of production P 1 towards the processing system 3, but also in the opposite direction in the direction of the supply reel 1. Since the strand of material is firmly clamped at one end in the supply spool 1, the material strand is twisted more and more by the backward rotation of the material strand between the supply spool 1 and the feed device 7 as the production time progresses, so that a withdrawal of the material strand from the supply spool 1 is no longer possible and there is permanent deformation or even tearing of the strand of material. In order to prevent this undesirable effect, the feed disks 12 and 17 of the counter twist device 4 are inclined in the opposite direction to the corresponding transport disks 30, 30 'and 35, 35' of the feed device 7; So if, for example, as shown in FIGS. 1 and 2, the two upper transport discs 30, 30 'from the vertical plane through the working line XX seen in the direction of production P 1 are pivoted to the right, the upper feed disc 12 of the counter-rotation device 4 in be pivoted to the left in the opposite direction. This applies analogously to the pivoting of the lower feed disk 17, which is pivoted to the right in the opposite direction.

Durch die jeweils gegensinnige Schrägstellung der Vorschubscheiben 12 bzw. 17 im Vergleich zu den Transportscheiben 30, 30' bzw. 35, 35' wird mittels der Gegendralleinrichtung 4 im Materialstrang ein Gegendrall erzeugt, der dem im Materialstrang durch die Vorschubeinrichtung 7 erzeugten, rückwärtsgerichteten Längsdrall entgegenwirkt und diesen aufhebt.Due to the oppositely inclined position of the feed disks 12 and 17 in comparison to the transport disks 30, 30 'and 35, 35', a counter-twist is generated by means of the counter-turning device 4 in the material strand, which counteracts the backward-directed longitudinal twist generated in the material strand by the feed device 7 and picks it up.

Die Beträge der Schwenkwinkel der Transportscheiben 30, 30' bzw. 35, 35' und der Vorschubscheiben 12 bzw. 17 sind vorzugsweise gleich, können im Rahmen der Erfindung jedoch auch unterschiedlich sein. Da der Materialstrang zwischen den Richtrollen der Richteinrichtungen 5 und 6 relativ stark eingespannt sein muß, um einen Richteffekt im Materialstrang zu erzielen, verhindern auch die Richteinrichtungen zum Teil die rückwärtsgerichtete Verdrehung des Materialstranges, so daß die Schwenkwinkel der Vorschubscheiben der Gegendralleinrichtung 4 gegebenenfalls kleiner als die Schwenkwinkel der Transportscheibe der Vorschubeinrichtung 7 gewählt werden können. Wenn es bei einem Doppeldraht erforderlich ist, die Einzeldrähte um ihre Längsachse unterschiedlich zu verdrehen, müssen mindestens zwei Transportscheibenpaare vorgesehen sein, wobei jedes Transportscheibenpaar unter einem anderen Winkel schräggestellt ist. In diesem Fall wird die Ausführung der Transportscheiben derart geändert, daß ein Einzeldraht durch die Umfangsnut 39 in den schrägstehenden Transportscheiben 30, 35 des ersten Transportscheibenpaares 27 läuft und dadurch um seine Längsachse verdreht wird, während der zweite Einzeldraht in dem ersten Transportscheibenpaar 27 auf einer glatten Lauffläche der Transportscheiben 30, 35 frei durchläuft. Im zweiten Transportscheibenpaar 27' läuft der erste bereits verdrehte Einzeldraht auf einer glatten Lauffläche der unter einem anderen Winkel schrägstehenden Transportscheiben 30', 35' des zweiten Transportscheibenpaares 27' frei durch, während der zweite Einzeldraht durch die Umfangsnut 39 der Transportscheiben 30', 35' des zweiten Transportscheibenpaares 27' läuft und dadurch um seine Längsachse verdreht wird. Es versteht sich, daß in diesem Anwendungsfall auch zwei Gegendralleinrichtungen vorgesehen sein müssen, um eine Verdrillung der Einzeldrähte in den dann ebenfalls zweifach vorhandenen Vorratsspulen für die Einzeldrähte zu verhindern.The amounts of the pivot angles of the transport disks 30, 30 'or 35, 35' and the feed disks 12 or 17 are preferably the same, but can also be different within the scope of the invention. Since the strand of material between the straightening rollers of the straightening devices 5 and 6 must be clamped relatively strongly in order to achieve a straightening effect in the material strand, the straightening devices also partially prevent the backward rotation of the material strand, so that the swivel angle of the feed disks of the counter-twist device 4 can optionally be selected to be smaller than the swivel angle of the transport disk of the feed device 7. If it is necessary with a double wire to twist the individual wires differently about their longitudinal axis, at least two pairs of transport disks must be provided, each pair of transport disks being inclined at a different angle. In this case, the design of the transport discs is changed such that a single wire runs through the circumferential groove 39 in the inclined transport discs 30, 35 of the first pair of transport discs 27 and is thereby rotated about its longitudinal axis, while the second individual wire in the first pair of transport discs 27 on a smooth Running surface of the transport discs 30, 35 passes freely. In the second pair of transport discs 27 ', the first twisted individual wire runs freely on a smooth running surface of the transport discs 30', 35 'of the second pair of transport discs 27' which are inclined at a different angle, while the second individual wire runs through the circumferential groove 39 of the transport discs 30 ', 35'. of the second pair of transport disks 27 'runs and is thereby rotated about its longitudinal axis. It goes without saying that, in this application, two counter twisting devices must also be provided in order to prevent the individual wires from twisting in the supply coils for the individual wires, which are then also present twice.

Die Längenmeßeinrichtung 8 weist ein Meßrad 40 und eine gegenüberliegende Gegenrolle 41 auf, wobei das Meßrad 40 mit Hilfe eines Schwenkhebels 42 an den dazwischenliegenden Materialstrang gedrückt wird, um einen sicheren Reibungsschluß zwischen dem Meßrad 40 und dem Materialstrang zu gewährleisten.The length measuring device 8 has a measuring wheel 40 and an opposing counter roller 41, the measuring wheel 40 being pressed against the intermediate strand of material with the aid of a pivoting lever 42 in order to ensure a secure frictional connection between the measuring wheel 40 and the strand of material.

Die Nachdressureinrichtung 9 weist zumindest zwei drehbar gelagerte obere Dressurrollen 43 und zumindest zwei drehbar gelagerte untere Dressurrollen 44 auf, die gegenüberliegend und versetzt zu den oberen Dressurrollen 43 angeordnet sind. Die oberen Dressurrollen 43 sind einzeln mit Hilfe je eines Stellantriebes 45 entsprechend dem Doppelpfeil P₁₄ gegen die unteren Dressurrollen 44 schwenkbar.The post-dressing device 9 has at least two rotatable upper dressing rollers 43 and at least two rotatably mounted lower dressage rollers 44, which are arranged opposite and offset from the upper dressage rollers 43. The upper dressage rollers 43 are individually pivotable with the help of an actuator 45 according to the double arrow P₁₄ against the lower dressage rollers 44.

Mit Hilfe der Nachdressureinrichtung 9 werden etwaige von den Transportscheiben 30, 30', 35, 35' der Vorschubeinrichtung 7 hervorgerufene Abweichungen von der in den Richteinrichtungen 5 und 6 geradegerichteten Form des Materialstranges ausgeglichen. Da diese Abweichungen erfahrungsgemäß klein sind, sind auch nur geringe Richtkräfte erforderlich, so daß die Anzahl der Dressurrollen 43, 44 der Nachdressureinrichtung 9 kleiner sein kann als die jeweilige Anzahl der Richtrollen 21, 22 und 24, 25 je Richteinrichtung 5 bzw. 6. Auch die Dressurrollen 43, 44 sind mit einer Umfangsnut 39 versehen, die an die Form und den Durchmesser des Materialstranges angepaßt ist.With the help of the post-dressing device 9, any deviations caused by the transport disks 30, 30 ', 35, 35' of the feed device 7 are compensated for by the straightening of the material strand in the straightening devices 5 and 6. Since experience has shown that these deviations are small, only small straightening forces are required, so that the number of dressing rollers 43, 44 of the post-dressing device 9 can be smaller than the respective number of straightening rollers 21, 22 and 24, 25 per straightening device 5 and 6. Also the dressage rollers 43, 44 are provided with a circumferential groove 39 which is adapted to the shape and diameter of the strand of material.

Die Förder- und Richteinrichtung 2 arbeitet in folgender Weise: Zum Einfädeln des Materialstranges werden die Rollenspalte zwischen den oberen und unteren Vorschubscheiben 12 bzw. 17, den vorderen und hinteren Richtrollen 21 bzw. 22, den oberen und unteren Richtrollen 24 bzw. 25, den oberen und unteren Transportscheiben 30, 30' bzw. 35, 35' und den oberen und unteren Dressurrollen 43 bzw. 44 so weit geöffnet, daß der Materialstrang einerseits ohne großen kraftaufwand hindurchgeschoben werden kann und anderseits innerhalb der Rollen und Scheiben sicher geführt wird.The conveyor and straightening device 2 works in the following way: To thread the strand of material, the roller gaps between the upper and lower feed disks 12 and 17, the front and rear straightening rollers 21 and 22, the upper and lower straightening rollers 24 and 25, respectively upper and lower transport discs 30, 30 'and 35, 35' and the upper and lower dressing rollers 43 and 44 opened so far that the strand of material can be pushed through without great effort on the one hand and on the other hand is safely guided within the rollers and discs.

Bei Verwendung eines Doppeldrahtes müssen die durch die beiden Umfangsnuten 39 gebildeten Durchtrittsöffnungen zwischen den Richtrollen, den Transportscheiben und den Dressurrollen in einer durchgehenden, parallel zur Arbeitslinie X-X verlaufenden Linie liegen, so daß gegebenenfalls zur Erfüllung dieser Bedingung die entsprechenden Einrichtungen schwenkbar ausgebildet werden müssen.When using a double wire, the through openings formed by the two circumferential grooves 39 between the straightening rollers, the transport disks and the dressing rollers must lie in a continuous line running parallel to the working line X-X, so that, if necessary, the corresponding devices must be designed to be pivotable in order to meet this condition.

Beim beschriebenen Ausführungsbeispiel trifft dies beispielsweise für die horizontale Richteinrichtung zu, die zum Einfädeln des Materialstranges aus der in Fig. 1 dargestellten Arbeitsstellung entsprechend dem Doppelpfeil P₁₅ um 90° in die Einfädelstellung geschwenkt werden muß.In the exemplary embodiment described, this applies, for example, to the horizontal straightening device for threading the strand of material from the working position shown in Fig. 1 must be pivoted by 90 ° in the threading position according to the double arrow P₁₅.

Nach dem Einfädeln des Materialstranges werden die obere Vorschubrolle 12 der Gegendralleinrichtung 4, die vorderen Richtrollen 21 der horizontalen Richteinrichtung 5, die oberen Richtrollen 24 der vertikalen Richteinrichtung 6, die oberen Transportscheiben 30, 30' der Vorschubeinrichtung 7 sowie die oberen Dressurrollen 43 der Nachdressureinrichtung 9 in ihre Arbeitsstellung geschwenkt, in welcher der Materialstrang schlupffrei von der Vorratsspule 1 abgezogen, geradegerichtet und gegebenenfalls um seine Längsachse verdreht der Verarbeitungsanlage 3 zugeführt wird.After threading the strand of material, the upper feed roller 12 of the counter twist device 4, the front straightening rollers 21 of the horizontal straightening device 5, the upper straightening rollers 24 of the vertical straightening device 6, the upper transport disks 30, 30 'of the feed device 7 and the upper dressing rollers 43 of the postdressing device 9 pivoted into its working position, in which the strand of material is drawn from the supply spool 1 without slippage, straightened and, if necessary, rotated about its longitudinal axis and fed to the processing system 3.

Es versteht sich, daß die Erfindung nicht auf das dargestellte Ausführungsbeispiel beschränkt ist, dieses vielmehr im Rahmen des allgemeinen Erfindungsgedankens verschiedentlich abgewandelt werden kann. Insbesondere kann die Vorschubeinrichtung 7 derart ausgebildet sein, daß nur eine Reihe der Transportscheiben angetrieben wird, während die anderen gegenüberliegenden Transportscheiben als frei drehende Gegenrollen ausgebildet sind, die gegebenenfalls auch einen kleineren Scheibendurchmesser als die angetriebenen Transportscheiben haben können. Die Anzahl der Transportscheibenpaare ist ebenfalls frei wählbar und hängt vom maximal erzeugbaren Reibungsschluß zwischen dem Materialstrang und den Transportscheiben ab, wobei ein schlupffreies Fördern des Materialstranges ohne Beschädigung seiner Oberfläche gewährleistet sein muß.It goes without saying that the invention is not limited to the exemplary embodiment shown, but that it can be modified in various ways within the scope of the general inventive concept. In particular, the feed device 7 can be designed in such a way that only one row of the transport disks is driven, while the other opposite transport disks are designed as freely rotating counter-rollers, which may also have a smaller disk diameter than the driven transport disks. The number of pairs of transport disks is also freely selectable and depends on the maximum frictional engagement that can be generated between the strand of material and the conveying disks, a slip-free conveying of the strand of material having to be ensured without damaging its surface.

Die Gegendralleinrichtung 4 sowie die Vorschubeinrichtung 7 sind mit entsprechenden nicht dargestellten Meßeinrichtungen für die Schwenkwinkel versehen, die jederzeit eine reproduzierbare Winkeleinstellung ermöglichen.The counter twist device 4 and the feed device 7 are provided with corresponding measuring devices (not shown) for the swivel angle, which enable a reproducible angle setting at any time.

Im Rahmen der Erfindung können auch mehr als zwei Richteinrichtungen vorgesehen sein. Hiebei können die Ebenen, in denen die Richtrollen der Richteinrichtungen liegen, beliebige Neigungen haben, wobei es sich als vorteilhaft erweisen hat, zumindest zwei Richteinrichtungen derart anzuordnen, daß die Ebenen der Richtrollen der einen Richteinrichtung zur Ebene der Richtrollen der anderen Richteinrichtung um 90° verdreht ist. Des weiteren ist es möglich, auch andere Typen von Richteinrichtungen, beispielsweise solche mit rotierendem Rotor zwischen der Gegendralleinrichtung und der Vorschubeinrichtung anzuordnen, wobei deren Anzahl beliebig wählbar ist.Within the scope of the invention, more than two straightening devices can also be provided. The planes in which the straightening rollers of the straightening devices lie can have any inclinations, whereby it turns out to be has proven to be advantageous to arrange at least two straightening devices in such a way that the levels of the straightening rollers of one straightening device are rotated by 90 ° to the level of the straightening rollers of the other straightening device. Furthermore, it is also possible to arrange other types of straightening devices, for example those with a rotating rotor, between the counter-twisting device and the feed device, the number of which can be selected as desired.

Die Arbeitsweise der erfindungsgemäßen Vorrichtung wird durch eine nicht gezeigte elektronische Steuereinrichtung gesteuert.The operation of the device according to the invention is controlled by an electronic control device, not shown.

Claims (7)

Vorrichtung zum kontinuierlichen Fördern eines Materialstranges von einem Materialvorrat zu einer Verarbeitungsanlage unter Verdrehen des Materialstranges um seine Längsachse und Richten desselben, mit einer Richteinrichtung mit zumindest drei angetriebenen, entlang einer Arbeitslinie angeordneten Richtrollenpaaren, wobei je eine Richtrolle aller Richtrollenpaare mittels einer Stelleinrichtung gegenüber der anderen Richtrolle heb- und senkbar ist und die Richtrollen jedes Richtrollenpaares zum Drehen des zu richtenden Materialstranges um seine Längsachse mittels einer weiteren Stelleinrichtung anstellbar sind, dadurch gekennzeichnet, daß entlang der Arbeitslinie (X-X) in Produktionsrichtung (P₁) gesehen hintereinander eine Gegendralleinrichtung (4) mit zumindest einem Paar von in beiden Drehrichtungen antreibbaren gegenüberliegenden Vorschubscheiben (12, 17), die Richteinrichtung (5, 6) und eine Vorschubeinrichtung (7) mit zumindest einem Paar (27, 27') von in beiden Drehrichtungen antreibbaren, gegenüberliegenden Transportscheiben (30, 35; 30', 35') vorgesehen sind, daß jeder Transportscheibe (30, 30'; 35, 35') eine auf derselben Seite der Arbeitslinie (X-X) liegende Vorschubscheibe (12, 17) zugeordnet ist, daß die Vorschubscheiben (12, 17) der Gegendralleinrichtung (4) und die Transportscheiben (30, 30'; 35, 35') des Transportscheibenpaares (27, 27') zur Arbeitslinie (X-X) jeweils gegensinnig geneigt anstellbar sind und jede Vorschubscheibe (12, 17) gegensinnig zur zugehörigen Transportscheibe (30, 30'; 35, 35') anstellbar ist.Device for the continuous conveying of a strand of material from a material supply to a processing plant by rotating the strand of material about its longitudinal axis and straightening it, with a straightening device with at least three driven straightening roller pairs arranged along a working line, one straightening roller of each pair of straightening rollers by means of one adjusting device relative to the other straightening roller can be raised and lowered and the straightening rollers of each pair of straightening rollers for rotating the material strand to be straightened about its longitudinal axis can be adjusted by means of a further adjusting device, characterized in that along the working line (XX) in the production direction (P₁) one after the other a counter-twist device (4) with at least a pair of opposite feed disks (12, 17) which can be driven in both directions of rotation, the straightening device (5, 6) and a feed device (7) with at least one pair (27, 27 ') of in both directions of rotation drivable, opposite transport disks (30, 35; 30 ', 35') are provided so that each transport disc (30, 30 '; 35, 35') is assigned a feed disc (12, 17) on the same side of the working line (XX) that the feed discs (12, 17) the counter-twist device (4) and the transport disks (30, 30 '; 35, 35') of the pair of transport disks (27, 27 ') to the working line (XX) can each be tilted in opposite directions and each feed disk (12, 17) in the opposite direction to the associated transport disk ( 30, 30 '; 35, 35') is adjustable. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Vorschubscheiben (12, 17) der Gegendralleinrichtung (4) jeweils unter einem Winkel zur Arbeitslinie (X-X) geneigt anstellbar sind, der kleiner oder gleich dem Anstellwinkel der entsprechenden Transportscheiben (30, 30'; 35, 35') des Transportscheibenpaares (27, 27') ist.Device according to claim 1, characterized in that the feed disks (12, 17) of the counter twist device (4) can each be inclined at an angle to the working line (XX) which is less than or equal to the angle of attack of the corresponding transport disks (30, 30 '; 35 , 35 ') of the pair of transport disks (27, 27'). Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Richteinrichtung (5, 6), wie an sich bekannt, eine mit Richtrollen (21, 22) versehene erste Richteinrichtung (5) und eine dieser gegenüber um 90° verdrehte, mit Richtrollen (25, 26) versehene zweite Richteinrichtung (6) aufweist, wobei die Richtrollen (21, 22; 25, 26) in gegenüberliegenden Reihen angeordnet sind und zumindest die Richtrollen (21; 25) einer Reihe gegen die Richtrollen (22; 26) der anderen Reihe einzeln mit Hilfe eines jeder Richtrolle (21; 25) zugeordneten Stellantriebes (23, 26) verschwenkbar sind.Device according to claim 1 or 2, characterized in that the straightening device (5, 6), as on is known to have a first straightening device (5) provided with straightening rollers (21, 22) and a second straightening device (6) rotated by 90 ° with respect to it and provided with straightening rollers (25, 26), the straightening rollers (21, 22; 25 , 26) are arranged in opposite rows and at least the straightening rollers (21; 25) of one row can be pivoted individually against the straightening rollers (22; 26) of the other row using an actuator (23, 26) assigned to each straightening roller (21; 25) . Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Vorschubeinrichtung (7) eine mit Dressurrollen (43, 44) versehene Nachdressureinrichtung (9) nachgeschaltet ist, wobei die Dressurrollen in gegenüberliegenden Reihen angeordnet und zumindest die Dressurrollen (43) einer Reihe gegen die Dressurrollen (44) der anderen Reihe mit Hilfe eines jeder Dressurrolle (43) zugeordneten Stellantriebes (45) verschwenkbar sind.Device according to one of claims 1 to 3, characterized in that the feed device (7) is followed by a post-dressing device (9) provided with dressing rollers (43, 44), the dressing rollers being arranged in opposite rows and at least the dressing rollers (43) being in one row can be pivoted against the dressing rollers (44) of the other row with the aid of an actuator (45) assigned to each dressing roller (43). Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Anzahl der Dressurrollen (43, 44) kleiner als die Anzahl der entsprechenden Richtrollen (21, 22; 25, 26) der Richteinrichtungen (5, 6) ist.Apparatus according to claim 4, characterized in that the number of dressing rollers (43, 44) is smaller than the number of corresponding straightening rollers (21, 22; 25, 26) of the straightening devices (5, 6). Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Vorschubscheiben (12, 17) der Gegendralleinrichtung (4) und die Transportscheiben (30, 30'; 35, 35') der Vorschubeinrichtung (7) mit Umfangsnuten (39) versehen sind, die an die Form und den Durchmesser des Materialstranges angepaßt sind.Device according to one of claims 1 to 5, characterized in that the feed disks (12, 17) of the counter twist device (4) and the transport disks (30, 30 '; 35, 35') of the feed device (7) are provided with circumferential grooves (39) are, which are adapted to the shape and diameter of the strand of material. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß bei einem aus mehreren Einzeldrähten bestehenden Materialstrang je Einzeldraht eine Gegendralleinrichtung (4) und zumindest ein Transportscheibenpaar (27, 27') vorgesehen sind, daß jede Vorschubscheibe (12, 17) und jede Transportscheibe (30, 30'; 35, 35') nur eine Umfangsnut (39) aufweist und daß der Anstellwinkel des einen Transportscheibenpaares (27) sich vom Anstellwinkel des anderen Transportscheibenpaares (27') unterscheidet.Device according to one of claims 1 to 6, characterized in that in the case of a strand of material consisting of a plurality of individual wires, a counter twist device (4) and at least one pair of transport discs (27, 27 ') are provided for each individual wire, such that each feed disc (12, 17) and each Transport disc (30, 30 '; 35, 35') has only one circumferential groove (39) and that the angle of attack of one pair of transport discs (27) differs from the angle of attack of the other pair of transport discs (27 ').
EP93890068A 1992-04-03 1993-04-01 Device for continuously feeding bar material to a processing apparatus Withdrawn EP0564444A1 (en)

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AT701/92 1992-04-03
AT70192 1992-04-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102133612A (en) * 2011-01-30 2011-07-27 衡阳市伟力钢筋机械有限公司 Mixed pressing wheel type steel bar straightening machine with extending function
CN104128390A (en) * 2014-07-25 2014-11-05 冯广建 Clutch structure for steel bar scaling device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2150782A1 (en) * 1971-10-12 1973-04-19 Malmedie & Co Maschf DEVICE FOR ALIGNMENT AND SUBSEQUENT CUTTING OF WIRE OR PROFILE MATERIAL
DE2306585A1 (en) * 1973-02-10 1974-08-15 Schmitz Soehne Gmbh J H METHOD OF ALIGNING WIRE BY TWIST
JPS5772740A (en) * 1980-10-27 1982-05-07 Osaka Denki Kk Wire correction device
EP0287494A2 (en) * 1987-04-14 1988-10-19 Panaghiotis A. Anagnostopoulos Wire processing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2150782A1 (en) * 1971-10-12 1973-04-19 Malmedie & Co Maschf DEVICE FOR ALIGNMENT AND SUBSEQUENT CUTTING OF WIRE OR PROFILE MATERIAL
DE2306585A1 (en) * 1973-02-10 1974-08-15 Schmitz Soehne Gmbh J H METHOD OF ALIGNING WIRE BY TWIST
JPS5772740A (en) * 1980-10-27 1982-05-07 Osaka Denki Kk Wire correction device
EP0287494A2 (en) * 1987-04-14 1988-10-19 Panaghiotis A. Anagnostopoulos Wire processing machine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102133612A (en) * 2011-01-30 2011-07-27 衡阳市伟力钢筋机械有限公司 Mixed pressing wheel type steel bar straightening machine with extending function
CN104128390A (en) * 2014-07-25 2014-11-05 冯广建 Clutch structure for steel bar scaling device

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