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EP3476503A1 - Machine for cutting to length individual rods, out of wires running in a production direction, and for exact positioning of the ends of said rods - Google Patents

Machine for cutting to length individual rods, out of wires running in a production direction, and for exact positioning of the ends of said rods Download PDF

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Publication number
EP3476503A1
EP3476503A1 EP18000640.5A EP18000640A EP3476503A1 EP 3476503 A1 EP3476503 A1 EP 3476503A1 EP 18000640 A EP18000640 A EP 18000640A EP 3476503 A1 EP3476503 A1 EP 3476503A1
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EP
European Patent Office
Prior art keywords
drum
rods
rod
production
channel
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
EP18000640.5A
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German (de)
French (fr)
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EP3476503B1 (en
Inventor
Martin Springer
Dietmar Lebenbauer
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EVG Entwicklungs und Verwertungs GmbH
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EVG Entwicklungs und Verwertungs GmbH
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Publication of EP3476503A1 publication Critical patent/EP3476503A1/en
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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
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/08—Making wire network, i.e. wire nets with additional connecting elements or material at crossings
    • B21F27/10—Making wire network, i.e. wire nets with additional connecting elements or material at crossings with soldered or welded crossings
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F23/00—Feeding wire in wire-working machines or apparatus
    • B21F23/005—Feeding discrete lengths of wire or rod

Definitions

  • the invention relates to a device for cutting individual rods of a continuous wire in the direction of production by means of a pair of scissors and for the exact positioning of the ends of the entering after cutting to a wire channel rods.
  • the scissors are designed as flying scissors with knives, which are arranged on the circumference of two wire enclosing roles, and that in the direction of production after the scissors a revolver drum along with the generatrix of the drum distributed around the circumference, outwardly open channels for the rods is arranged so that the direction of rotation of the drum in front of the top channel come to lie channel in the production direction and can absorb the just cut rod whose feed by a device on the fixedly supported friction brake is braked, and that in the direction of production reciprocable wire feeding device is provided, which engages the rear end of the cut rods with Drahtmit diversityettin which can engage in the channels and the rear end of the rods in a exactly constant position bezoge n bring in the production direction, wherein the first located in the position of the channel before the uppermost position rod passes after stepwise rotation of the drum in its lowermost position, from which it is discharged from the rotated in the lowest position channel down to a tray.
  • Fig. 1 the device schematically in a side view
  • Fig. 2 the device in the direction of production, in Fig. 1 from the left, seen.
  • Fig. 3 is a speed-time diagram to illustrate the reciprocating of the rod advancing device.
  • a revolver drum 5 is arranged with a horizontal axis of rotation 6, which is rotatable stepwise in a clockwise direction by means of a rotary drive, not shown.
  • the revolver drum 5 has along the generatrix of the drum 5 distributed around its periphery outwardly open channels 7, in which the cut rods 4 can enter.
  • a bar advancing device 8 which can be moved back and forth in and against the production direction P is arranged.
  • a drive for the rod advancing device 8 is denoted by 14.
  • the revolver drum 5 is arranged so that the channel 7 in its position 7A, which in the direction of rotation of the drum 5 in the in Fig. 2 shown torque is located in front of the uppermost position 7B, is in the production direction P and can absorb the just cut rod 4. Due to its kinetic energy imparted by the flying shears, this rod 4 has come to rest with its rear end 4A after a first section a following the interface at any point within a distance b, its front end already being within the position in the position 7A located 7 of the revolver drum 5 is located.
  • the feed takes place by means of a first bar driver element 9A, which is arranged on the bar advancing device 8 in its upper region. If the rear end 4A of the rod 4 has come to lie within the second third x1 of the entire travel distance b of the rod advancing device 8 due to the greater kinetic energy imparted to it, the advance effected by the latter takes place only by means of a second Stabmit distractions 9B, in the middle height range of the rod advancing device is arranged.
  • the friction brake 11 is formed with a friction pawl 12 which is pivotable towards and away from the rod 4 as long as the rod 4 is in the channel 7 of the revolving drum 5 occupying the uppermost position 7B.
  • the force with which the friction pawl 12 pushes on the rod 4 is adjustable in accordance with the diameter, the length and the surface quality of the rods 4 such that the rear end 4A of the rod 4 between the position at a distance adjoining the Interface and a position within the subsequent travel path b of the rod advancing device 8 comes to rest.
  • a pneumatic actuating cylinder for the friction brake 11 is denoted by 13.
  • FIG. 2 visible different, respectively occupied positions of the channels 7 of the revolving drum 5 on the circumference of the drum 5 are hereinafter referred to differently according to the function performed in each case:
  • the arranged in the direction of rotation of the drum 5 in front of the uppermost position 7B position 7A of the channels 7 is that where the Front end of the just cut bar 4 after scissors first enters.
  • This position 7A of the channels 7 can be referred to as an inlet channel.
  • the inlet channel 7A together with the rod 4 which has not yet come to rest, passes from the position 7A into the uppermost position 7B by a very rapid starting step of the drum 5. There, the still rapidly moving rod 4 is decelerated by the pressure on him on the friction brake 11 arranged friction pawl 12 on it.
  • the located in the uppermost position 7B channel 7 is therefore referred to as a brake channel.
  • the downstream in the three clockwise direction in the direction of rotation of the drum 5 positions 7C located channels 7 are referred to as rectifier channels.
  • advancing steps can be made by means of Stabmitwholesomemaschine 9A, 9B.
  • Stabmitwholesomemaschine 9A, 9B In fast operation, only in the last rectifier channel, a feed-forward step takes place.
  • the lowest channel 7 is designated in this position 7D as a discharge channel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Basic Packing Technique (AREA)
  • Specific Conveyance Elements (AREA)
  • Wire Processing (AREA)

Abstract

Bei einer Vorrichtung zum Ablängen einzelner Stäbe von einem in Produktionsrichtung (P) durchlaufenden Draht mittels einer Schere und zum exakten Positionieren der Enden der nach dem Ablängen in einen Drahtkanal eintretenden Stäbe ist die Schere als fliegende Schere mit Messern (3) ausgebildet ist, die am Umfang zweier den Draht (1) einschließender Rollen (2) angeordnet sind; in der Produktionsrichtung (P) nach der Schere ist eine Revolvertrommel (5) mit entlang der Erzeugenden der Trommel (5) um deren Umfang verteilt verlaufenden, nach außen offenen Kanälen (7) für die Stäbe (4) so angeordnet, dass der Kanal (7), der sich im Drehsinn der Trommel (5) in einer Position vor der obersten Position befindet, in der Produktionsrichtung (P) liegt und den eben abgelängten Stab (4) aufnehmen kann; der infolge der von der fliegenden Schere mitgeteilten Bewegungsenergie erfolgende Vorschub dieses Stabes (4) wird durch eine an der Vorrichtung ortsfest abgestützte Reibungsbremse (11) abgebremst; außerdem ist eine in der Produktionsrichtung (P) hin und her fahrbare Drahtvorschiebeeinrichtung (8) vorgesehen, die am hinteren Ende (4A) der abgelängten Stäbe (4) mit Stabmitnehmerelementen (9A, 9B, 9C) angreift, welche in die Kanäle (7) eingreifen können und das hintere Ende (4A) der Stäbe (4) in eine exakt gleichbleibende Position (4B) bezogen auf die Produktionsrichtung (P) bringen; der zunächst in der Position vor der obersten Position befindliche Stab (4) gelangt nach schrittweisem Drehen der Trommel (5) in seine unterste Position, von der er aus dem in die unterste Position gedrehten Kanal (7) nach unten auf eine Ablage abgegeben wird.

Figure imgaf001
In a device for cutting individual rods of a running in the direction of production (P) wire by means of scissors and for accurately positioning the ends of entering after cutting into a wire channel rods, the scissors is designed as flying shears with knives (3), the The circumference of two rollers (2) enclosing the wire (1) are arranged; in the direction of production (P) of the pair of scissors, a revolver drum (5) with outwardly extending channels (7) for the bars (4) extending along the generatrices of the drum (5) is arranged so that the channel (4) is distributed around its circumference; 7), which is in the direction of rotation of the drum (5) in a position before the uppermost position, in the production direction (P) and can receive the just cut to length rod (4); the advancement of this rod (4) as a result of the kinetic energy imparted by the flying shears is decelerated by a friction brake (11) fixedly supported on the device; In addition, a wire feed device (8) which can be moved back and forth in the production direction (P) is provided, which engages at the rear end (4A) of the cut rods (4) with rod driver elements (9A, 9B, 9C) which run into the channels (7). can engage and bring the rear end (4A) of the bars (4) in an exactly constant position (4B) with respect to the direction of production (P); the first in the position in front of the uppermost position rod (4) passes after stepwise rotation of the drum (5) in its lowermost position, from which it is discharged from the rotated in the lowest position channel (7) down to a tray.
Figure imgaf001

Description

Die Erfindung betrifft eine Vorrichtung zum Ablängen einzelner Stäbe von einem in Produktionsrichtung durchlaufenden Draht mittels einer Schere und zum exakten Positionieren der Enden der nach dem Ablängen in einen Drahtkanal eintretenden Stäbe.The invention relates to a device for cutting individual rods of a continuous wire in the direction of production by means of a pair of scissors and for the exact positioning of the ends of the entering after cutting to a wire channel rods.

In drahtverarbeitenden Anlagen müssen häufig einzelne Stäbe von Drähten größerer Länge abgeschnitten und die Stäbe dann zur weiteren Verarbeitung, z.B. für das Schweißen von Gittermatten, in eine genau definierte Lage gebracht werden. Erfolgt das Ablängen mittels stationärer Scheren, ergibt sich der Nachteil, dass der die Anlage durchlaufende Draht zum Schneiden angehalten werden muss, was Verluste an Zeit und Energieverbrauch und außerdem Unruhe und Lärm in der Produktionslinie verursacht und zu Schäden an der Staboberfläche führen kann. Zur Vermeidung dieser Nachteile ist der Einsatz fliegender Scheren bekannt, die aber den Nachteil haben, dass die aus der Schere auslaufenden Stäbe infolge der durch die Schere mitgeteilten Bewegungsenergie nach der Schere ungleich zu liegen kommen. Für die Weiterverarbeitung ist aber eine stets gleiche Lage der Stäbe erforderlich, sodass die Stäbe mit den Enden aufeinander ausgerichtet werden müssen, was aufwendige Arbeitsschritte erfordert und zu Zeitverlusten führt.In wire processing plants, individual bars often have to be cut from wires of greater length and the bars then cut for further processing, e.g. For the welding of mesh mats, be placed in a well-defined position. The result of cutting to length by means of stationary shears, there is the disadvantage that the wire passing through the plant for cutting must be stopped, which losses of time and energy consumption and also causes restlessness and noise in the production line and can lead to damage to the rod surface. To avoid these disadvantages, the use of flying scissors is known, but have the disadvantage that the expiring from the scissors rods come to lie unequal due to the communicated by the scissors kinetic energy after the scissors. For further processing but always the same position of the rods is required so that the rods must be aligned with the ends of each other, which requires complex steps and leads to loss of time.

Die Erfindung stellt sich die Aufgabe, eine einfache und zeitsparend arbeitende Vorrichtung bereitzustellen, welche zum Ablängen der Stäbe eine fliegende Schere einsetzt und die abgelängten Stäbe ohne Zeitverlust mit ihren Enden exakt aufeinander ausrichtet.The invention has as its object to provide a simple and time-saving device, which uses a pair of flying shears for cutting the bars and aligns the cut rods with their ends exactly to each other without loss of time.

Dies wird bei einer Vorrichtung der eingangs erwähnten Art dadurch erreicht, dass die Schere als fliegende Schere mit Messern ausgebildet ist, die am Umfang zweier den Draht einschließender Rollen angeordnet sind, und dass in der Produktionsrichtung nach der Schere eine Revolvertrommel mit entlang der Erzeugenden der Trommel um deren Umfang verteilt verlaufenden, nach außen offenen Kanälen für die Stäbe so angeordnet ist, dass der im Drehsinn der Trommel vor dem obersten Kanal zu liegen gekommene Kanal in der Produktionsrichtung liegt und den eben abgelängten Stab aufnehmen kann, dessen Vorschub durch eine an der Vorrichtung ortsfest abgestützte Reibungsbremse abgebremst wird, und dass eine in der Produktionsrichtung hin und her fahrbare Drahtvorschiebeeinrichtung vorgesehen ist, die am hinteren Ende der abgelängten Stäbe mit Drahtmitnehmerelementen angreift, welche in die Kanäle eingreifen können und das hintere Ende der Stäbe in eine exakt gleichbleibende Position bezogen auf die Produktionsrichtung bringen, wobei der zunächst in der Position des Kanals vor dessen oberster Position befindliche Stab nach schrittweisem Drehen der Trommel in seine unterste Position gelangt, aus welcher er aus dem in die unterste Position gedrehten Kanal nach unten auf eine Ablage abgegeben wird.This is achieved in a device of the type mentioned above in that the scissors are designed as flying scissors with knives, which are arranged on the circumference of two wire enclosing roles, and that in the direction of production after the scissors a revolver drum along with the generatrix of the drum distributed around the circumference, outwardly open channels for the rods is arranged so that the direction of rotation of the drum in front of the top channel come to lie channel in the production direction and can absorb the just cut rod whose feed by a device on the fixedly supported friction brake is braked, and that in the direction of production reciprocable wire feeding device is provided, which engages the rear end of the cut rods with Drahtmitnehmerelementen which can engage in the channels and the rear end of the rods in a exactly constant position bezoge n bring in the production direction, wherein the first located in the position of the channel before the uppermost position rod passes after stepwise rotation of the drum in its lowermost position, from which it is discharged from the rotated in the lowest position channel down to a tray.

Weitere Merkmale der erfindungsgemäßen Vorrichtung finden sich in den abhängigen Ansprüchen.Further features of the device according to the invention can be found in the dependent claims.

Die erfindungsgemäße Vorrichtung wird näher erläutert anhand eines in der Zeichnung dargestellten Ausführungsbeispiels. In der Zeichnung zeigt Fig. 1 die Vorrichtung schematisch in einer Seitenansicht und Fig. 2 die Vorrichtung in Produktionsrichtung, in Fig. 1 von links her, gesehen. Fig. 3 ist ein Geschwindigkeits-Zeit-Diagramm zur Veranschaulichung des Hin- und Herbewegens der Stabvorschiebeeinrichtung.The device according to the invention will be explained in more detail with reference to an embodiment shown in the drawing. In the drawing shows Fig. 1 the device schematically in a side view and Fig. 2 the device in the direction of production, in Fig. 1 from the left, seen. Fig. 3 is a speed-time diagram to illustrate the reciprocating of the rod advancing device.

Von einem in der Produktionsrichtung P horizontal durchlaufenden Draht ist in Fig. 1 nur die mit 1 bezeichnete Mittellinie dargestellt. Der Draht wird mittels einer fliegenden Schere zwischen zwei ihn einschließenden, sich drehender Rollen 2 mit an deren Umfang angeordneten Messern 3 in einzelne Stäbe 4 gleicher bzw. unterschiedlicher, wählbarer Länge geschnitten. In der Produktionsrichtung P nach der Schere ist eine Revolvertrommel 5 mit einer horizontalen Drehachse 6 angeordnet, die mittels eines nicht dargestellten Drehantriebs schrittweise im Uhrzeigersinn drehbar ist. Die Revolvertrommel 5 hat entlang der Erzeugenden der Trommel 5 um deren Umfang verteilt nach außen offene Kanäle 7, in die die abgelängten Stäbe 4 eintreten können. In der Produktionsrichtung P nach der Schere und im bzw. vor dem vorderen Bereich der Revolvertrommel 5 ist eine in der und gegen die Produktionsrichtung P hin und her fahrbare Stabvorschiebeeinrichtung 8 angeordnet. Ein Fahrantrieb für die Stabvorschiebeeinrichtung 8 ist mit 14 bezeichnet.From a horizontal direction in the direction of production P wire is in Fig. 1 only the center line marked 1 is shown. The wire is cut by means of flying shears between two rotating rollers 2 enclosing it with knives 3 arranged on their circumference, into individual bars 4 of the same or different, selectable length. In the direction of production P after the pair of scissors, a revolver drum 5 is arranged with a horizontal axis of rotation 6, which is rotatable stepwise in a clockwise direction by means of a rotary drive, not shown. The revolver drum 5 has along the generatrix of the drum 5 distributed around its periphery outwardly open channels 7, in which the cut rods 4 can enter. In the production direction P after the scissors and in or in front of the front region of the revolver drum 5, a bar advancing device 8 which can be moved back and forth in and against the production direction P is arranged. A drive for the rod advancing device 8 is denoted by 14.

Die Revolvertrommel 5 ist so angeordnet, dass der Kanal 7 in seiner Position 7A, welche sich im Drehsinn der Trommel 5 in dem in Fig. 2 dargestellten Moment vor der zuoberst angeordneten Position 7B befindet, in der Produktionsrichtung P liegt und den eben abgelängten Stab 4 aufnehmen kann. Dieser Stab 4 ist aufgrund seiner durch die fliegende Schere mitgeteilten Bewegungsenergie mit seinem hinteren Ende 4A nach einem ersten an die Schnittstelle anschließenden Abschnitt a an einer beliebigen Stelle innerhalb einer Strecke b zu liegen gekommen, wobei sich sein vorderes Ende bereits innerhalb des in der Position 7A befindlichen Kanals 7 der Revolvertrommel 5 befindet. Befindet sich das hintere Ende 4A des zu liegen gekommenen Stabes 4 innerhalb des ersten Drittels x1 der gesamten Fahrstrecke b der Stabvorschiebeeinrichtung 8, erfolgt der Vorschub mittels eines ersten Stabmitnehmerelementes 9A, das an der Stabvorschiebeeinrichtung 8 in deren oberem Bereich angeordnet ist. Ist das hintere Ende 4A des Stabes 4 infolge der ihm mitgeteilten größeren Bewegungsenergie innerhalb des zweiten Drittels x1 der gesamten Fahrstrecke b der Stabvorschiebeeinrichtung 8 zu liegen gekommen, erfolgt der durch letztere bewirkte Vorschub erst mittels eines zweiten Stabmitnehmerelementes 9B, das im mittleren Höhenbereich der Stabvorschiebeeinrichtung 8 angeordnet ist. Ist das hintere Ende 4A des Stabes 4 infolge seiner noch größeren Geschwindigkeit erst innerhalb des dritten Drittels x1 der gesamten Fahrstrecke b der Stabvorschiebeeinrichtung 8 zu liegen gekommen, erfolgt der erstmalig durch letztere bewirkte Vorschub erst mittels eines dritten Stabmitnehmerelementes 9C, das im unteren Bereich der Stabvorschiebeeinrichtung 8 angeordnet ist. Wenn alle Stäbe 4 mit ihrem hinteren Ende 4A innerhalb des ersten Drittels x1 der Fahrstrecke b zu liegen kommen, wie dies bei relativ langsamem Betrieb der Vorrichtung in der Regel der Fall sein kann, sind alle drei Stabmitnehmerelemente 9A, 9B, 9C an dem Vorschiebevorgang beteiligt; bei schnellem Betrieb nur das letzte, im unteren Bereich der Stabvorschiebeeinrichtung 8 angeordnete Stabmitnehmerelement 9C. Die in die Kanäle 7 der Revolvertrommel 5 eingeschobenen Stäbe 4 gelangen nach dem schrittweisen Drehen der Trommel 5 am Ende in eine Lage, in welcher der den jeweiligen Stab 4 aufnehmende Kanal 7 sich ganz unten in der Position 7D befindet. In dieser Lage kann der jeweilige Stab 4 aus dem Kanal 7 auf eine in der Zeichnung nicht dargestellte Ablage herausfallen bzw. ausgestoßen werden.The revolver drum 5 is arranged so that the channel 7 in its position 7A, which in the direction of rotation of the drum 5 in the in Fig. 2 shown torque is located in front of the uppermost position 7B, is in the production direction P and can absorb the just cut rod 4. Due to its kinetic energy imparted by the flying shears, this rod 4 has come to rest with its rear end 4A after a first section a following the interface at any point within a distance b, its front end already being within the position in the position 7A located 7 of the revolver drum 5 is located. If the rear end 4A of the bar 4 to be positioned lies within the first third x1 of the entire travel path b of the bar advancing device 8, the feed takes place by means of a first bar driver element 9A, which is arranged on the bar advancing device 8 in its upper region. If the rear end 4A of the rod 4 has come to lie within the second third x1 of the entire travel distance b of the rod advancing device 8 due to the greater kinetic energy imparted to it, the advance effected by the latter takes place only by means of a second Stabmitnehmerelementes 9B, in the middle height range of the rod advancing device is arranged. If the rear end 4A of the rod 4 has come to rest only within the third third x1 of the entire travel distance b of the rod advancing device 8, the first advance effected by the latter takes place only by means of a third Stabmitnehmerelementes 9C, in the lower part of the Stabvorschiebeeinrichtung 8 is arranged. If all the bars 4 come to lie with their rear end 4A within the first third x1 of the route b, as may be the case with relatively slow operation of the device, all three Stabmitnehmerelemente 9A, 9B, 9C involved in the Vorschiebevorgang ; during rapid operation, only the last, in the lower region of the rod advancing device 8 arranged Stabmitnehmerelement 9C. The inserted into the channels 7 of the turret 5 rods 4 arrive after the stepwise rotation of the drum 5 at the end in a position in which the respective rod 4 receiving channel 7 is located at the very bottom in the position 7D. In this position, the respective rod 4 from the channel 7 to one in the drawing not shown tray fall out or be ejected.

In allen Fällen ist gewährleistet, dass das vorher irgendwo im Bereich der Fahrstrecke b der Stabvorschiebeeinrichtung 8 befindliche hintere Ende 4A des abgelängten Stabes 4 sich nach der Abgabe aus dem in der untersten Position 7D befindlichen Kanal 7 der Revolvertrommel 5 an der exakt gleichbleibenden Stelle 4B befindet.In all cases, it is ensured that the rear end 4A of the cut rod 4 previously located somewhere in the region of the travel path b of the rod advancing device 8 is located at exactly the same location 4B after delivery from the channel 7 of the revolving drum 5 located in the lowest position 7D ,

Es versteht sich, dass die in verschiedenen Höhen an der Stabvorschiebeeinrichtung 8 angeordneten Stabmitnehmerelemente 9A, 9B, 9C entsprechend den Lagen der Kanäle 7 der Revolvertrommel 5 außerdem seitlich und zueinander mit gegenseitigen Abständen x1 versetzt angeordnet sind.It is understood that arranged at different heights on the Stabvorschiebeeinrichtung 8 Stabmitnehmerelemente 9A, 9B, 9C are arranged according to the positions of the channels 7 of the revolving drum 5 also laterally offset from each other and with mutual distances x1.

Selbstverständlich müssen die Drehschritte der Revolvertrommel 5 mit der Hin- und Herbewegung der Stabvorschiebeeinrichtung 8 so abgestimmt sein, dass sich die Stabmitnehmerelemente 9A, 9B, 9C beim Weiterdrehen der Trommel 5 außerhalb der Kanäle 7 der Trommel 5 befinden. Für den Störfall des Weiterdrehens der Revolvertrommel 5, bevor die Stabmitnehmerelemente 9A, 9B, 9C die Kanäle 7 der Trommel 5 vollständig verlassen haben, ist eine Klinkeneinrichtung 10 vorgesehen, welche die Stabmitnehmerelemente 9A, 9B, 9C um eine Achse 10A gegen die Wirkung einer Feder 10B aus den in den Positionen 7C befindlichen Kanälen 7 heraus nach außen schwenkt.Of course, the rotational steps of the revolving drum 5 must be coordinated with the reciprocating movement of the rod advancing device 8 so that the Stabmitnehmerelemente 9A, 9B, 9C are located on the further rotation of the drum 5 outside the channels 7 of the drum 5. In the event of an accident of further rotation of the revolver drum 5, before the Stabmitnehmerelemente 9 A, 9 B, 9 C have completely left the channels 7 of the drum 5, a pawl means 10 is provided which the Stabmitnehmerelemente 9 A, 9 B, 9 C about an axis 10 A against the action of a spring 10B pivots outwardly from the channels 7 located at positions 7C.

Für das Abbremsen der von der fliegenden Schere mitgeteilten Bewegungsenergie des Stabes 4, der sich mit seinem Vorderende in dem in der obersten Position 7B befindlichen Kanal 7 der Revolvertrommel 5 befindet und dort weiter nach vorne rutscht, ist eine an der Vorrichtung ortsfest abgestützte Reibungsbremse 11 vorgesehen. Die Reibungsbremse 11 ist mit einer Reibungsklinke 12 ausgebildet, welche auf den Stab 4 hin und von diesem weg schwenkbar ist, solange sich der Stab 4 im in die oberste Position 7B einnehmenden Kanal 7 der Revolvertrommel 5 befindet. Die Kraft, mit welcher die Reibungsklinke 12 auf den Stab 4 drückt, ist entsprechend dem Durchmesser, der Länge und der Oberflächenbeschaffenheit der Stäbe 4 so einstellbar, dass das hintere Ende 4A des Stabes 4 wie oben erwähnt zwischen der Position in Abstand a anschließend an die Schnittstelle und einer Position innerhalb des daran anschließenden Verfahrweges b der Stabvorschiebeeinrichtung 8 zu liegen kommt. Ein pneumatischer Betätigungszylinder für die Reibungsbremse 11 ist mit 13 bezeichnet.For the deceleration of the momentum of the rod 4 communicated by the flying shears, which is located with its front end in the channel 7 of the revolving drum 5 located in the uppermost position 7B and slips further forward there, is provided on the device fixedly supported friction brake 11. The friction brake 11 is formed with a friction pawl 12 which is pivotable towards and away from the rod 4 as long as the rod 4 is in the channel 7 of the revolving drum 5 occupying the uppermost position 7B. The force with which the friction pawl 12 pushes on the rod 4 is adjustable in accordance with the diameter, the length and the surface quality of the rods 4 such that the rear end 4A of the rod 4 between the position at a distance adjoining the Interface and a position within the subsequent travel path b of the rod advancing device 8 comes to rest. A pneumatic actuating cylinder for the friction brake 11 is denoted by 13.

Die in Fig. 2 sichtbaren verschiedenen, jeweils eingenommenen Positionen der Kanäle 7 der Revolvertrommel 5 am Umfang der Trommel 5 sind im Folgenden entsprechend der jeweils ausgeübten Funktion verschieden bezeichnet: Die im Drehsinn der Trommel 5 vor der obersten Position 7B angeordnete Position 7A der Kanäle 7 ist diejenige, wo das vordere Ende des eben abgeschnittenen Stabes 4 nach der Schere zuerst eintritt. Diese Position 7A der Kanäle 7 kann als Eintrittskanal bezeichnet werden. Der Eintrittskanal 7A mitsamt dem darin noch nicht zur Ruhe gekommenen Stab 4 gelangt durch einen sehr schnell einsetzenden Drehschritt der Trommel 5 aus der Position 7A in die oberste Position 7B. Dort wird der nach wie vor schnell bewegte Stab 4 durch den auf ihm lastenden Druck der an der Reibungsbremse 11 angeordneten Reibungsklinke 12 abgebremst. Der in der obersten Position 7B befindliche Kanal 7 wird demnach als Bremskanal bezeichnet. Die in den drei in der Drehrichtung der Trommel 5 im Uhrzeigersinn nachgeordneten Positionen 7C befindlichen Kanäle 7 sind als Gleichrichterkanäle bezeichnet. In den ersten beiden Gleichrichterkanälen können Vorschiebeschritte mittels der Stabmitnehmerelemente 9A, 9B vorgenommen werden. Bei schnellem Betrieb findet nur im letzten Gleichrichterkanal ein Vorschiebeschritt statt. Der unterste Kanal 7 ist in dieser Position 7D als Abgabekanal bezeichnet.In the Fig. 2 visible different, respectively occupied positions of the channels 7 of the revolving drum 5 on the circumference of the drum 5 are hereinafter referred to differently according to the function performed in each case: The arranged in the direction of rotation of the drum 5 in front of the uppermost position 7B position 7A of the channels 7 is that where the Front end of the just cut bar 4 after scissors first enters. This position 7A of the channels 7 can be referred to as an inlet channel. The inlet channel 7A, together with the rod 4 which has not yet come to rest, passes from the position 7A into the uppermost position 7B by a very rapid starting step of the drum 5. There, the still rapidly moving rod 4 is decelerated by the pressure on him on the friction brake 11 arranged friction pawl 12 on it. The located in the uppermost position 7B channel 7 is therefore referred to as a brake channel. The downstream in the three clockwise direction in the direction of rotation of the drum 5 positions 7C located channels 7 are referred to as rectifier channels. In the first two rectifier channels advancing steps can be made by means of Stabmitnehmerelemente 9A, 9B. In fast operation, only in the last rectifier channel, a feed-forward step takes place. The lowest channel 7 is designated in this position 7D as a discharge channel.

Claims (7)

Vorrichtung zum Ablängen einzelner Stäbe von einem in Produktionsrichtung (P) durchlaufenden Draht mittels einer Schere und zum exakten Positionieren der Enden der nach dem Ablängen in einen Drahtkanal eintretenden Stäbe, dadurch gekennzeichnet, dass die Schere als fliegende Schere mit Messern (3) ausgebildet ist, die am Umfang zweier den Draht (1) einschließender Rollen (2) angeordnet sind, und dass in der Produktionsrichtung (P) nach der Schere eine Revolvertrommel (5) mit entlang der Erzeugenden der Trommel (5) um deren Umfang verteilt verlaufenden, nach außen offenen Kanälen (7) für die Stäbe (4) so angeordnet ist, dass der Kanal (7), der sich im Drehsinn der Trommel (5) in einer Position (7A) vor der obersten Position (7B) befindet, in der Produktionsrichtung (P) liegt und den eben abgelängten Stab (4) aufnehmen kann, dessen Vorschub durch eine an der Vorrichtung ortsfest abgestützte Reibungsbremse (11) abgebremst wird, und dass eine in der Produktionsrichtung (P) hin und her fahrbare Stabvorschiebeeinrichtung (8) vorgesehen ist, die am hinteren Ende (4A) der abgelängten Stäbe (4) mit Stabmitnehmerelementen (9A, 9B, 9C) angreift, welche in die Kanäle (7) eingreifen können und das hintere Ende (4A) der Stäbe (4) in eine exakt gleichbleibende Position (4B) bezogen auf die Produktionsrichtung (P) bringen, wobei der zunächst in der Position (7A) des Kanals (7) vor dessen oberster Position (7B) befindliche Stab (4) nach schrittweisem Drehen der Trommel (5) in seine unterste Position gelangt, aus welcher er aus dem in die unterste Position (7D) gedrehten Kanal (7) nach unten auf eine Ablage abgegeben wird.Device for cutting individual bars from a wire passing in the direction of production (P) by means of scissors and for exact positioning of the ends of the bars entering a wire channel after cutting to length, characterized in that the scissors are designed as flying shears with knives (3), on the circumference of two the wire (1) enclosing rollers (2) are arranged, and that in the direction of production (P) after the scissors a revolver drum (5) along the generatrices of the drum (5) distributed around the circumference, outwards open channels (7) for the rods (4) is arranged so that the channel (7), which is in the direction of rotation of the drum (5) in a position (7A) before the uppermost position (7B), in the production direction ( P) and can absorb the just cut rod (4) whose feed is braked by a fixedly supported on the device friction brake (11), and that in the production direction (P) out u moveable bar advancing device (8) is provided which engages at the rear end (4A) of the cut rods (4) with Stabmitnehmerelementen (9A, 9B, 9C) which can engage in the channels (7) and the rear end (4A) bring the rods (4) in an exactly constant position (4B) with respect to the production direction (P), wherein the first in the position (7A) of the channel (7) before its uppermost position (7B) located bar (4) after stepwise Turning the drum (5) reaches its lowest position, from which it is discharged from the rotated in the lowest position (7D) channel (7) down to a shelf. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Stabmitnehmerelemente (9A, 9B, 9C) der Drahtvorschiebeeinrichtung (8) in verschiedenen Lagen in ihrer Höhe und seitlich versetzt entsprechend den Lagen der Kanäle (7) der Revolvertrommel (5) und außerdem in der Produktionsrichtung (P) versetzt und in gegenseitigem Abstand (x1) angeordnet sind.Apparatus according to claim 1, characterized in that the Stabmitnehmerelemente (9A, 9B, 9C) of the wire advancing device (8) in different positions in height and laterally offset according to the positions of the channels (7) of the revolver drum (5) and also in the production direction (P) are offset and arranged at a mutual distance (x1). Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass bei einem in, vorzugsweise drei, gleich lange Teile (x1) unterteiltem Verfahrweg (b) der Drahtvorschiebeeinrichtung (8) mit Ausnahme des in der Produktionsrichtung (P) letzten Teils (x1) je ein Stabmitnehmerelement (9A, 9B, 9C) am Beginn und am Ende der Teile (x1) angeordnet ist.Apparatus according to claim 2, characterized in that in one, preferably three, equally long parts (x1) divided path (b) of the wire advancing device (8) with the exception in the production direction (P) last part (x1) per a Stabmitnehmerelement ( 9A, 9B, 9C) is arranged at the beginning and at the end of the parts (x1). Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Anpresskraft der Reibungsbremse (11) entsprechend dem Durchmesser, der Länge und der Oberflächenbeschaffenheit der Stäbe (4) so einstellbar ist, dass das hintere Ende (4A) des Stabes (4), welches in den Kanal (7) in der Position (7A) eintritt, die sich im Drehsinn der Trommel (5) vor der obersten Position (7B) befindet, dort zwischen einer Position in Abstand (a) anschließend an die Schnittstelle und einer Position nach dem daran anschließenden Verfahrweg (b) der Stabvorschiebeeinrichtung (8) eintrifft.Device according to one of claims 1 to 3, characterized in that the contact force of the friction brake (11) according to the diameter, the length and the surface condition of the rods (4) is adjustable so that the rear end (4A) of the rod (4) which enters the channel (7) in the position (7A), which is in the direction of rotation of the drum (5) before the uppermost position (7B), there between a position at a distance (a) adjacent to the interface and a position after the subsequent travel (b) of the rod advancing device (8) arrives. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Reibungsbremse (11) mit einer auf den Stab (4) hin und von diesem weg schwenkbaren Klinke (12) ausgebildet ist.Device according to one of claims 1 to 4, characterized in that the friction brake (11) with a on the rod (4) and away from this pivotable pawl (12) is formed. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Drehschritte der Revolvertrommel (5) mit der die Hin- und Herbewegung der Stabvorschiebeeinrichtung (8) so abstimmbar sind, dass sich die Stabmitnehmerelemente (9A, 9B, 9C) beim Weiterdrehen der Revolvertrommel (5) außerhalb der Kanäle (7) befinden.Device according to one of claims 1 to 5, characterized in that the rotational steps of the revolving drum (5) with which the reciprocating movement of the rod advancing device (8) are tuned so that the Stabmitnehmerelemente (9A, 9B, 9C) during further rotation of the Revolver drum (5) outside the channels (7) are located. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Stabmitnehmerelemente (9A,9B, 9C) für den Störfall des Weiterdrehens der Revolvertrommel (5) bei in deren Kanälen (7) befindlichen Stabmitnehmerelementen (9A, 9B, 9C) nach außen ausklinkbar sind.Device according to one of claims 1 to 6, characterized in that the Stabmitnehmerelemente (9A, 9B, 9C) for the accident of further rotation of the revolver drum (5) located in their channels (7) Stabmitnehmerelementen (9A, 9B, 9C) to the outside be unlatched.
EP18000640.5A 2017-10-24 2018-08-02 Machine for cutting to length individual rods, out of wires running in a production direction, and for exact positioning of the ends of said rods Active EP3476503B1 (en)

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ATA416/2017A AT520588B1 (en) 2017-10-24 2017-10-24 Device for cutting individual bars to length from a wire running in the direction of production and for the exact positioning of the ends of the bars

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CN110756703A (en) * 2019-11-06 2020-02-07 长兴小浦凯荣机械加工厂 Sectioning equipment for aluminum alloy cable processing
AT524556B1 (en) * 2021-01-19 2022-07-15 Progress Maschinen & Automation Ag Braking device for braking a wire
DE202023000471U1 (en) 2023-02-28 2024-05-29 Network Quality Management GmbH Device for processing at least one axially drawn wire
EP4494778A1 (en) * 2023-07-20 2025-01-22 Schlatter Industries AG Cutting device for cutting wire

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3422661A1 (en) * 1984-06-19 1985-12-19 IDEAL - Werk C. + E. Jungeblodt GmbH + Co, 4780 Lippstadt Apparatus for feeding cut-to-length longitudinal wires to a grid welding machine
US5191818A (en) * 1989-07-31 1993-03-09 Pomini Farrel S.P.A. Process and facility for shearing to length steel bars coming from a rolling mill
DE29621385U1 (en) * 1996-12-10 1997-03-06 Emil Jäger GmbH & Co KG, 48153 Münster Positioning device for cross wires
EP1579932A1 (en) * 2004-03-25 2005-09-28 EVG Entwicklungs- u. Verwertungs- Gesellschaft m.b.H. Apparatus for braking and delivering rod-like articles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3422661A1 (en) * 1984-06-19 1985-12-19 IDEAL - Werk C. + E. Jungeblodt GmbH + Co, 4780 Lippstadt Apparatus for feeding cut-to-length longitudinal wires to a grid welding machine
US5191818A (en) * 1989-07-31 1993-03-09 Pomini Farrel S.P.A. Process and facility for shearing to length steel bars coming from a rolling mill
DE29621385U1 (en) * 1996-12-10 1997-03-06 Emil Jäger GmbH & Co KG, 48153 Münster Positioning device for cross wires
EP1579932A1 (en) * 2004-03-25 2005-09-28 EVG Entwicklungs- u. Verwertungs- Gesellschaft m.b.H. Apparatus for braking and delivering rod-like articles

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EP3476503B1 (en) 2020-02-12
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