EP0534117A2 - Cutting wire guide for cutting machine - Google Patents

Cutting wire guide for cutting machine Download PDF

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Publication number
EP0534117A2
EP0534117A2 EP92113864A EP92113864A EP0534117A2 EP 0534117 A2 EP0534117 A2 EP 0534117A2 EP 92113864 A EP92113864 A EP 92113864A EP 92113864 A EP92113864 A EP 92113864A EP 0534117 A2 EP0534117 A2 EP 0534117A2
Authority
EP
European Patent Office
Prior art keywords
wire
cutting
wire guide
guide according
cutting wire
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Withdrawn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
EP92113864A
Other languages
German (de)
French (fr)
Other versions
EP0534117A3 (en
Inventor
Georg Schiefele
Paul Ströbele
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.)
Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG
Original Assignee
Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG
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 Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG filed Critical Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG
Publication of EP0534117A2 publication Critical patent/EP0534117A2/en
Publication of EP0534117A3 publication Critical patent/EP0534117A3/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/547—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a wire-like cutting member

Definitions

  • the invention relates to a cutting wire guide for cutters according to the preamble of claim 1.
  • Ceramic products such as masonry and roof tiles, are cut from plastic strands with wires clamped between two brackets.
  • the service life of the wires is of crucial importance for the performance of the system. In addition to the tensile strength and the diameter, this also depends on the type of clamping.
  • a cutting wire guide according to the preamble of claim 1 has become known from DE-OS 38 17 583. It is also known to the person skilled in the art to tension the cutting wire over rollers with a guide groove after the clamping.
  • wire guides have in common that the wire swings strongly after it emerges from the strand to be severed, which leads to material fatigue and to the tearing of the wires because the thinnest possible wire must be used because of the cleanliness of the cut.
  • the invention is therefore based on the object of providing a wire guide which reduces the ringing of the wires as they exit the strand and brings about rapid calming.
  • Claims 2 to 10 contain advantageous configurations of the attenuators.
  • the invention considerably reduces the oscillation amplitude and oscillation period of the wires after the strand has emerged, as a result of which a long service life can be achieved and even thinner wires than usual can be used.
  • the formation of standing vibrations between the rigid holders of the wire is largely avoided.
  • FIG. 1 shows schematically the guiding of a cutting wire 1 between the wire holders 2, 2 '(2' only partially shown) with the guide bodies 3, 3 'and the deflection elements 4, 4' attached to them.
  • the deflection members 4, 4 ' are arranged at a short distance from the strand 5 on the guide bodies 3, 3' either fixed or adjustable in the direction and / or across the wire 1.
  • the deflecting elements 4, 4 ' can also be non-illustrated contact elements, which are each movably arranged on the guide bodies 3, 3' and bear against the wire (1) under spring preload.
  • the deflection members 4, 4 ' have circular-arc-shaped grooves 6 through which the wires 1 are guided.
  • the wires 1 run from the deflection elements 4, 4 'in the direction of their holders diagonally upwards at an angle of at most 45 ° to the horizontal. The angle should generally be smaller.
  • the radius R of the curved grooves 6 should be considerably larger than the length L of the deflection elements 4, 4 '.
  • a radius R of at least 150 mm and a length L of at least 50 mm can be used as guidelines, i.e. a ratio of about 3: 1. These dimensions are not binding for the function.
  • the deflection elements 4, 4 reduce the amplitude M of the wires and their period of oscillation, similar to a finger on a guitar side.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

The invention relates to a cutting wire guide for a cutting machine for cutting a plastic strand by means of wires (1) which are in each case stretched between two holding devices (2, 2') and essentially consists in that a cushioning element (4, 4') is provided between the wire holding devices and the strand (5) and bears on the wire in a prestressed manner. <IMAGE>

Description

Die Erfindung betrifft eine Schneidedrahtführung für Abschneider gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a cutting wire guide for cutters according to the preamble of claim 1.

Keramische Produkte, zum Beispiel wie Mauerziegel und Dachziegel, werden aus plastischen Strängen mit zwischen je zwei Halterungen eingespannten Drähten geschnitten. Für die Leistung der Anlage ist die Standdauer der Drähte von entscheidender Bedeutung. Diese hängt außer von der Zugfestigkeit und dem Durchmesser auch von der Art der Einspannung ab.Ceramic products, such as masonry and roof tiles, are cut from plastic strands with wires clamped between two brackets. The service life of the wires is of crucial importance for the performance of the system. In addition to the tensile strength and the diameter, this also depends on the type of clamping.

Es ist bekannt, Drähte im Bereich der Einspannung mit einer Hülse zu führen, um so die Drahtposition zu fixieren bzw. in einer gekrümmten Hülse zu führen, damit die Drähte, bei Mehrdrahtabschneider zum Beispiel, bei denen diese in der Schnittebene auch zurückgeführt werden, geringfügig verschwenkt werden können.It is known to guide wires in the area of the clamping with a sleeve in order to fix the wire position or to guide it in a curved sleeve so that the wires, in the case of multi-wire cutters, for example, in which they are also returned in the cutting plane, are slightly can be pivoted.

Eine Schneidedrahtführung nach dem Oberbegriff des Anspruchs 1 ist aus der DE-OS 38 17 583 bekanntgeworden. Es ist dem Fachmann weiterhin bekannt, den Schneidedraht nach der Einspannung über Rollen mit Führungsrille zu spannen.A cutting wire guide according to the preamble of claim 1 has become known from DE-OS 38 17 583. It is also known to the person skilled in the art to tension the cutting wire over rollers with a guide groove after the clamping.

Diesen Drahtführungen gemeinsam ist, daß der Draht nach dem Austritt aus dem zu durchtrennenden Strang stark nachschwingt, was zu Materialermüdung und zum Reißen der Drähte führt, weil wegen der Sauberkeit des Schnitts ein möglichst dünner Draht verwendet werden muß.These wire guides have in common that the wire swings strongly after it emerges from the strand to be severed, which leads to material fatigue and to the tearing of the wires because the thinnest possible wire must be used because of the cleanliness of the cut.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Drahtführung zu schaffen, die das Nachschwingen der Drähte beim Austritt aus dem Strang vermindert und eine rasche Beruhigung bewirkt.The invention is therefore based on the object of providing a wire guide which reduces the ringing of the wires as they exit the strand and brings about rapid calming.

Diese Aufgabe wird erfindungsgemäß durch die im kennzeichnenden Teil des Patentanspruches 1 angegebenen Maßnahme gelöst..This object is achieved by the measure specified in the characterizing part of claim 1.

Die Ansprüche 2 bis 10 enthalten vorteilhafte Ausgestaltungen der Dämpfungsglieder.Claims 2 to 10 contain advantageous configurations of the attenuators.

Durch die Erfindung wird, wie Versuche ergeben haben, die Schwingungsweite und Schwingungsdauer der Drähte nach dem Strangaustritt erheblich verringert, wodurch eine lange Standzeit erzielbar ist und sogar noch dünnere Drähte als üblich eingesetzt werden können. Die Ausbildung von stehenden Schwingungen zwischen den starren Halterungen des Drahtes ist weitgehend vermieden.As tests have shown, the invention considerably reduces the oscillation amplitude and oscillation period of the wires after the strand has emerged, as a result of which a long service life can be achieved and even thinner wires than usual can be used. The formation of standing vibrations between the rigid holders of the wire is largely avoided.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen:

Figur 1
eine schematische Ansicht der Drahtführung,
Figur 2
eine Detailansicht der Drahtführung im Bereich zwischen Strang und Drahthalterung,
Figur 3
die Drahtführung im Schnitt I-I der Figur 2.
An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it:
Figure 1
a schematic view of the wire guide,
Figure 2
a detailed view of the wire guide in the area between the strand and the wire holder,
Figure 3
the wire guide in section II of Figure 2.

In Figur 1 ist schematisch die Führung eines Schneidedrahtes 1 zwischen den Drahthalterungen 2, 2' (2' nur teilweise gezeigt) mit den Führungskörpern 3, 3' und den an diesen angebrachten Umlenkorganen 4, 4' dargestellt. Die Umlenkorgane 4, 4' sind in einer geringen Entfernung zum Strang 5 an den Führungskörpern 3, 3' entweder fest oder in Richtung und/oder quer zum Draht 1 verstellbar angeordnet. Die Umlenkorgane 4, 4' können auch nicht dargestellte Anlageorgane sein, die an den Führungskörpern 3, 3' jeweils beweglich angeordnet sind und unter Federvorspannung am Draht (1) anliegen.FIG. 1 shows schematically the guiding of a cutting wire 1 between the wire holders 2, 2 '(2' only partially shown) with the guide bodies 3, 3 'and the deflection elements 4, 4' attached to them. The deflection members 4, 4 'are arranged at a short distance from the strand 5 on the guide bodies 3, 3' either fixed or adjustable in the direction and / or across the wire 1. The deflecting elements 4, 4 'can also be non-illustrated contact elements, which are each movably arranged on the guide bodies 3, 3' and bear against the wire (1) under spring preload.

Wie aus Figuren 2 und 3 näher ersichtlich, haben die Umlenkorgane 4, 4' kreisbogenförmige Rillen 6, durch die die Drähte 1 geführt werden. Die Drähte 1 verlaufen von den Umlenkorganen 4, 4' in Richtung ihrer Halterungen schräg aufwärts mit einem Winkel von maximal 45° zur Horizontalen. Der Winkel sollte im allgemeinen kleiner sein. Der Radius R der gekrümmten Rillen 6 soll erheblich größer sein als die Länge L der Umlenkorgane 4, 4'. Als Richtlinien können ein Radius R von mindestens 150 mm und eine Länge L von mindestens 50 mm gelten, also ein Verhältnis von etwa 3 : 1. Diese Maße sind für die Funktion aber nicht bindend.As can be seen in more detail from FIGS. 2 and 3, the deflection members 4, 4 'have circular-arc-shaped grooves 6 through which the wires 1 are guided. The wires 1 run from the deflection elements 4, 4 'in the direction of their holders diagonally upwards at an angle of at most 45 ° to the horizontal. The angle should generally be smaller. The radius R of the curved grooves 6 should be considerably larger than the length L of the deflection elements 4, 4 '. A radius R of at least 150 mm and a length L of at least 50 mm can be used as guidelines, i.e. a ratio of about 3: 1. These dimensions are not binding for the function.

Die Umlenkorgane 4, 4' verringern, ähnlich wie ein Finger auf einer Gitarrenseite, die Amplitude M der Drähte und deren Schwingungsdauer.The deflection elements 4, 4 'reduce the amplitude M of the wires and their period of oscillation, similar to a finger on a guitar side.

Claims (10)

Schneidedrahtführung für einen Abschneider zum Durchschneiden von plastischem Stranggut mittels mindestens eines zwischen je zwei Halterungen (2, 2') eingespannten Drahtes (1), dadurch gekennzeichnet, daß zwischen den Halterungen (2, 2') und dem Stranggut (5) jeweils ein an dem Draht (1) unter Vorspannung anliegendes Dämpfungsglied (4,4') vorgesehen ist.Cutting wire guide for a cutter for cutting plastic extrudate by means of at least one wire (1) clamped between two brackets (2, 2 '), characterized in that one between each of the brackets (2, 2') and the extrudate (5) the wire (1) is provided with a pre-tensioned attenuator (4,4 '). Schneidedrahtführung nach Anspruch 1, dadurch gekennzeichnet, daß jedes Dämpfungsglied aus einem Führungskörper (3,3') und einem auf dem Draht (1) aufliegenden Anlageorgan (4,4') besteht.Cutting wire guide according to claim 1, characterized in that each damping member consists of a guide body (3,3 ') and an abutment member (4,4') resting on the wire (1). Schneidedrahtführung nach Anspruch 2, dadurch gekennzeichnet, daß das Anlageorgan ein den Draht (1) krümmendes Umlenkorgan (4,4') ist.Cutting wire guide according to claim 2, characterized in that the contact element is a deflecting element (4, 4 ') which curves the wire (1). Schneidedrahtführung nach Anspruch 2, dadurch gekennzeichnet, daß das Anlageorgan an dem Führungskörper (3, 3') in Richtung quer zur Längsrichtung des Drahtes (1) beweglich angeordnet ist und in Richtung zum Draht (1) unter Federvorspannung steht.Cutting wire guide according to claim 2, characterized in that the contact element on the guide body (3, 3 ') is arranged to be movable in the direction transverse to the longitudinal direction of the wire (1) and is spring-loaded in the direction of the wire (1). Schneidedrahtführung nach Anspruch 3, dadurch gekennzeichnet, daß der Draht (1) von den Umlenkorganen (4,4') zu den Drahthalterungen (2, 2') hin schräg in einem Winkel von höchstens 450 zur Drahtlängsrichtung zwischen den Umlenkorganen (4, 4') verläuft.Cutting wire guide according to claim 3, characterized in that the wire (1) from the deflection elements (4,4 ') to the wire holders (2, 2') obliquely at an angle of at most 450 to the longitudinal direction of the wire between the deflection elements (4, 4 ' ) runs. Schneidedrahtführung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß die Umlenkorgane (4,4') an den Führungskörpern (3, 3') in Längsrichtung des Drahtes (1) verstellbar angebracht sind.Cutting wire guide according to one of claims 3 to 5, characterized in that the deflection members (4, 4 ') are attached to the guide bodies (3, 3') so as to be adjustable in the longitudinal direction of the wire (1). Schneidedrahtführung nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, daß die Umlenkorgane (4, 4') kreisbogenförmig verlaufende Rillen (6) zur Führung des Drahtes aufweisen.Cutting wire guide according to one of Claims 3 to 6, characterized in that the deflecting members (4, 4 ') have grooves (6) which run in the form of a circular arc for guiding the wire. Schneidedrahtführung nach Anspruch 7, dadurch gekennzeichnet, daß die Größe des Krümmungsradius (R) der Rillen (6) und die Länge (L) der Umlenkorgane (4, 4') in einem Verhältnis von etwa 3 : 1 stehen.Cutting wire guide according to claim 7, characterized in that the size of the radius of curvature (R) of the grooves (6) and the length (L) of the deflection members (4, 4 ') are in a ratio of about 3: 1. Schneidedrahtführung nach Anspruch 8, dadurch gekennzeichnet, daß der Radius (R) wenigstens 150 mm und die Länge (L) wenigstens 50 mm beträgt.Cutting wire guide according to claim 8, characterized in that the radius (R) is at least 150 mm and the length (L) is at least 50 mm. Schneidedrahtführung nach Anspruch 3, dadurch gekennzeichnet, daß die Umlenkorgane (4, 4') an den Führungskörpern (3, 3') in Richtung quer zur Längsrichtung des Drahtes (1) verstellbar sind.Cutting wire guide according to claim 3, characterized in that the deflection members (4, 4 ') on the guide bodies (3, 3') are adjustable in the direction transverse to the longitudinal direction of the wire (1).
EP19920113864 1991-09-16 1992-08-14 Cutting wire guide for cutting machine Withdrawn EP0534117A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914130794 DE4130794C1 (en) 1991-09-16 1991-09-16
DE4130794 1991-09-16

Publications (2)

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EP0534117A2 true EP0534117A2 (en) 1993-03-31
EP0534117A3 EP0534117A3 (en) 1993-06-30

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EP19920113864 Withdrawn EP0534117A3 (en) 1991-09-16 1992-08-14 Cutting wire guide for cutting machine

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DE (1) DE4130794C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10257192B4 (en) * 2002-12-06 2007-02-01 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co Kg Wire deflection on universal cutters
GB2476963A (en) * 2010-01-15 2011-07-20 Imac Design Harp with Means to Variably Position Cutting Wires

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452734A (en) * 1968-08-19 1969-07-01 Continental Machines Precision band-type cutting machine
US4274389A (en) * 1980-01-25 1981-06-23 Cominco Ltd. Cutting apparatus for semi-conductor materials
DE3118505A1 (en) * 1981-05-09 1983-02-24 Anton 7326 Heinigen Koukal Wire-rope stone-cutting saw
JPS61100366A (en) * 1984-10-22 1986-05-19 Sumitomo Metal Ind Ltd Wire type multi-strip cutting device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817583A1 (en) * 1987-05-25 1989-01-05 Richard Oke Macfarlane IMPROVED CUTTER

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452734A (en) * 1968-08-19 1969-07-01 Continental Machines Precision band-type cutting machine
US4274389A (en) * 1980-01-25 1981-06-23 Cominco Ltd. Cutting apparatus for semi-conductor materials
DE3118505A1 (en) * 1981-05-09 1983-02-24 Anton 7326 Heinigen Koukal Wire-rope stone-cutting saw
JPS61100366A (en) * 1984-10-22 1986-05-19 Sumitomo Metal Ind Ltd Wire type multi-strip cutting device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 281 (M-520)25. September 1986 & JP-A-61 100 366 ( SUMITOMO METAL IND LTD ) 19. Mai 1986 *

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Publication number Publication date
DE4130794C1 (en) 1993-01-21
EP0534117A3 (en) 1993-06-30

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