EP0778236B1 - Apparatus for folding webs in zig-zag loops - Google Patents

Apparatus for folding webs in zig-zag loops Download PDF

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Publication number
EP0778236B1
EP0778236B1 EP96118247A EP96118247A EP0778236B1 EP 0778236 B1 EP0778236 B1 EP 0778236B1 EP 96118247 A EP96118247 A EP 96118247A EP 96118247 A EP96118247 A EP 96118247A EP 0778236 B1 EP0778236 B1 EP 0778236B1
Authority
EP
European Patent Office
Prior art keywords
pressure
pressure bar
recesses
tape
bar
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.)
Expired - Lifetime
Application number
EP96118247A
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German (de)
French (fr)
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EP0778236A1 (en
Inventor
Hans Affüper
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.)
JAKOB MUELLER DEUTSCHLAND GMBH
Original Assignee
Jakob Mueller Deutschland GmbH
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Filing date
Publication date
Application filed by Jakob Mueller Deutschland GmbH filed Critical Jakob Mueller Deutschland GmbH
Publication of EP0778236A1 publication Critical patent/EP0778236A1/en
Application granted granted Critical
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Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/02—Folding limp material without application of pressure to define or form crease lines
    • B65H45/06—Folding webs
    • B65H45/10—Folding webs transversely
    • B65H45/101—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile
    • B65H45/103—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile by a carriage which reciprocates above the laying station
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/11—Dimensional aspect of article or web
    • B65H2701/112—Section geometry
    • B65H2701/1123—Folded article or web
    • B65H2701/11231—Fan-folded material or zig-zag or leporello

Definitions

  • the present invention relates to a device for Folding a flexible, continuously fed strip material, in particular an elastic textile band, in Zigzag loops, with a reciprocating laying carriage, the two with axes parallel to each other side by side arranged, rotating in the same direction Has laying rolls, between which the tape material from from a feed side and through to the tape feed direction vertical reciprocation of the laying carriage folded and in a direction corresponding to the feed direction
  • the discharge direction is moved on, as well as with braking means to act on the longitudinal edges of the strip material with a pressure force in the folding area, being as Brake fluid in the area of the laying rollers on the belt exit side a pressure bar is arranged, the length of which is at least equal to the range of movement of the laying carriage, and which runs parallel to it.
  • Such a device is from DE 31 14 395 C2 and also known from parallel EP 0 062 753 B1.
  • This known device has also been used in practice already proven very well because it is due to the intended Braking means also with elastic band material the constancy of the length of the zigzag loops evenly good laying quality guaranteed.
  • the problem may occur that the zigzag loop just laid moved back against the feed direction and then possibly between the pressure bar and the laying carriage devours.
  • the present invention is therefore based on the object starting from the known generic device to improve them in such a way that even with problematic, elastic tape material the continuity of the workflow is increased, i.e. downtimes caused by faults the device can be avoided.
  • the pressure surface is thus in the longitudinal direction the pressure bar interrupted in some areas, that the pressure applied in the transverse direction and as a result, strip material that is slightly curved in the transverse direction with its longitudinal edge in areas in the recesses bulges in and thereby from the retaining edges is "held". This will cause a return movement of the just placed tape loop towards the feed side effectively avoided.
  • the invention is based on the knowledge that particularly in the case of elastic band material from the one already laid "Loop package" a fairly large, against the laying direction acting back force can be generated, which then each can push back the last loop. By however, the invention will now be the most recent Loop through the retaining edges safely against one high back force. This can advantageously processing even with problematic strip materials with high working speeds of up to 100 to 120 m / min.
  • these are in particular essentially straight retaining edges on an imaginary connecting line, which in turn is about the location and the course corresponds to the last zigzag loop placed.
  • the laying is straight put the loop immediately in the area where the Retaining edges are arranged so that each loop immediately held or fixed by the retaining edges becomes.
  • the pressure bar itself preferably consists of a mechanically simple and quickly editable material, such as especially hard paper or the like (better known under the trademark "Pertinax").
  • a mechanically simple and quickly editable material such as especially hard paper or the like (better known under the trademark "Pertinax”).
  • the retaining edges are part of each of releasably connected in particular to the pressure bar Insert elements, which then consist of a hard, wear resistant material such as steel can.
  • this configuration is particularly special Advantage as especially at high working speeds a not negligible friction from the strip material is exerted on the pressure bar. Through the steel insert elements becomes a major improvement reached in terms of the life of the device.
  • a device 1 according to the invention serves to be flexible, in particular elastically stretchable band material 2 in packs lying one behind the other Fold zigzag loops 2a.
  • the folded tape material 2 or its loops 2a has then straight, parallel sections as well as lateral 180 ° turns 2b.
  • 2 and 3 are the zigzag loops 2a for reasons of better clarity shown somewhat apart; in the In practice, however, they lie close together.
  • This tape material folded in this way is then used in the textile industry further processed; it allows easy pulling in Towards any processing machine.
  • so folded tape materials kept much more compact and be sent as, for example, with coils it is possible.
  • the device 1 according to the invention is relative in FIG. 1 detailed, but only the essential components for the present invention are explained. Regarding the rest, not explained here Design features are at this point in in full on the publications already mentioned at the beginning DE 31 14 395 C2 and EP 0 062 753 B1.
  • the device 1 has a support plate 4 for the band material to be folded 2 or for the folded Zigzag loops 2a.
  • a laying carriage 6 perpendicular to the tape feed direction X arranged back and forth, see arrows Y in Fig. 2 and 3.
  • the laying carriage 6 has two laying rollers 7 and 8, which are mounted side by side rotatable about two parallel axes are. The axes of rotation of the laying rollers 7, 8 run vertically to the direction of displacement Y of the laying carriage 6 and vertically to the tape feed direction X.
  • the laying rollers 7, 8 is a vertical guide gap formed for the strip material 2 to be laid; in The strip material 2 runs in this feed gap in the feed direction X a.
  • the strip material 2 is located in more vertical, i.e. upright position.
  • the gap between the laying rollers 7, 8 is dimensioned such that friction is entrained of the strip material 2 through the peripheral surface in each case one of the two laying rolls 7, 8 takes place.
  • the laying rolls 7, 8 are each driven in the same direction, whereby the direction of rotation depends on the direction of displacement of the laying carriage 6.
  • braking means are provided, which the longitudinal edges of the strip material 2 with a Apply pressure force F in the folding area.
  • More essential Part of this brake means is a pressure bar 12, those in the area of the laying rolls 7, 8 on their strip exit side is arranged, and their length at least equal the range of movement of the laying carriage 6.
  • the pressure bar 12 runs parallel to the direction of displacement of the laying carriage 6 and preferably above this, see above that it acts on the upper longitudinal edge of the strip material 2, by using the lower one facing the tape Pressure surface 14 the strip material 2 somewhat from the top presses down.
  • the present invention now relates to an improvement in Area of the pressure bar 12.
  • the pressure bar according to the invention 12 in their band pressure surface 14 over the length of the last distributed recesses 18 to form Has band retaining edges 20.
  • the pressure surface 14 in some areas in the longitudinal direction of the pressure bar 12 interrupted that in the transverse direction with the pressing force F acted on band material 2 or the respective zigzag loop 2a with the band longitudinal edge 22 in some areas bulges into the recesses 18 and thereby from the Retaining edges 20 is held. This will make it effective a return movement of the tape loop 2a just laid avoided in the direction of the feed side 10.
  • the recesses 18 are formed in this way and arranged that the retaining edges 20 each in run essentially rectilinearly and in particular on a common imaginary connecting straight line 24 lie, which in turn are about the location and course of the corresponds to the last zigzag loop 2a.
  • the recesses 18 in the direction of the feed side 10 limited by the retaining edges 20.
  • the retaining edges 20 each part of in particular releasably with the pressure bar 12 connected insert elements 26 are.
  • the insert elements 26 screwed to the pressure bar 12.
  • the insert elements 26 each also form a partial area of the Pressure surface 14, expediently for screwing appropriate countersunk screws 28 are used.
  • the insert elements 26 have the advantage that a increased wear resistance against caused by the tape Friction in the area of the retaining edges 20 reached can be made by inserting the elements 26 accordingly wear-resistant material, especially steel, consist.
  • the remaining pressure bar 12 can advantageously from another, mechanically light and fast machinable material. Is particularly suitable Hard paper (phenolic laminate with paper resin backing, better known under the trademark "Pertinax").
  • the recesses 18 forming the retaining edges 20 are expediently as depressions or areas with reduced Thickness of the pressure bar 12 is formed. These recesses extend from the retaining edges 20 seen in the feed or discharge direction X, X ', i.e. across or perpendicular to the pressure bar 12, preferably via the Total remaining width of the pressure bar 12. Sit the preferably provided insert elements 26 on the "closed" End of the wells and fill them out here so that the pressure surface 14 is continuously present in this area is.
  • the Pressure bar 12 preferably in their pressure surface 14 in each case in the longitudinal direction adjacent to the last Retaining edges 20 forming recesses 18 more, in particular on the connecting straight line connecting the retaining edges 20 24 lying recesses 30.
  • This further recesses 30 support or promote the "Wavy" curvature of the longitudinal edge 22 of the band, see in particular Fig. 8.
  • the further recesses 30 are in the illustrated embodiment as circular depressions trained, the centers of which are approximately on the connecting straight line 24 lie.
  • Steps 32 from the retaining edges 20 in the discharge direction X 'seen spaced by a pressure distance A which is preferably dimensioned such that in this area each only a certain number (depending on the thickness of the each processed band material 2 depends on zigzag loops 2a is arranged.
  • the pressure bar 12 in both of its free ends facing side areas of the movement range of the laying carriage 6, i.e. in the end areas of the maximum length of the Zigzag loops 2a, across the entire width of the last the thickness is reduced so that here instead of the pressure surface in each case a relaxation area 36 is formed in this way is that the zigzag loops 2a in the area of their 180 ° turns 2b maximum with one - compared to the actual one Contact force F in the area of the pressure surface 14 - reduced Contact force F '' can be applied. Similar to that Force F ', the contact pressure F' 'can also go to zero. This measure favors loop formation, i.e. the Formation of the 180 ° turns 2b.
  • the pressure bar 12 is interlocked accordingly educated. This ensures that the scope the laying rolls 7, 8 in the laying area approximately in the middle of the Pressure bar 12 runs. This means that the teeth of the Pressure bar 12 approximately until just before the respective center of the roll protrude.
  • the teeth of the pressure bar are expedient 12 rounded.
  • the Pressure bar 12 for the purpose of mounting on the invention Device 1 countersunk holes 40, basically in any Areas can be arranged. 4 is on Such a countersunk hole 40 at each end of the pressure bar 12 arranged, and further countersunk holes 40 in the area of Recesses 18 may be arranged.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Package Frames And Binding Bands (AREA)

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zum Falten eines flexiblen, kontinuierlich zugeführten Bandmaterials, insbesondere eines elastischen Textilbandes, in Zickzack-Schlaufen, mit einem hin- und herbewegbaren Legewagen, der zwei mit zueinander parallelen Achsen nebeneinander angeordnete, gleichsinnig rotierend angetriebene Legerollen aufweist, zwischen denen das Bandmaterial von einer Zuführseite her eingezogen und durch die zur Band-Einzugsrichtung senkrechte Hin- und Herbewegung des Legewagens gefaltet sowie in einer der Einzugsrichtung entsprechenden Abführrichtung weiterbewegt wird, sowie mit Bremsmitteln zur Beaufschlagung der Längskanten des Bandmaterials mit einer Andruckkraft im Faltbereich, wobei als Bremsmittel im Bereich der Legerollen an deren Band-Austrittsseite eine Andruckleiste angeordnet ist, deren Länge mindestens gleich dem Bewegungsbereich des Legewagens ist, und die parallel hierzu verläuft.The present invention relates to a device for Folding a flexible, continuously fed strip material, in particular an elastic textile band, in Zigzag loops, with a reciprocating laying carriage, the two with axes parallel to each other side by side arranged, rotating in the same direction Has laying rolls, between which the tape material from from a feed side and through to the tape feed direction vertical reciprocation of the laying carriage folded and in a direction corresponding to the feed direction The discharge direction is moved on, as well as with braking means to act on the longitudinal edges of the strip material with a pressure force in the folding area, being as Brake fluid in the area of the laying rollers on the belt exit side a pressure bar is arranged, the length of which is at least equal to the range of movement of the laying carriage, and which runs parallel to it.

Eine derartige Vorrichtung ist aus der DE 31 14 395 C2 sowie aus der parallelen EP 0 062 753 B1 bekannt. Diese bekannte Vorrichtung hat sich im praktischen Einsatz auch bereits sehr gut bewährt, da sie aufgrund der vorgesehenen Bremsmittel auch bei elastischem Bandmaterial eine bezüglich der Konstanz der Länge der Zickzack-Schlaufen gleichmäßig gute Legequalität gewährleistet. Allerdings kann bei besonders hohen Arbeitsgeschwindigkeiten das Problem auftreten, daß sich die gerade gelegte Zickzack-Schlaufe wieder entgegen der Einzugsrichtung zurückbewegt und dann womöglich zwischen der Andruckleiste und dem Legewagen verschlingt.Such a device is from DE 31 14 395 C2 and also known from parallel EP 0 062 753 B1. This known device has also been used in practice already proven very well because it is due to the intended Braking means also with elastic band material the constancy of the length of the zigzag loops evenly good laying quality guaranteed. However, at particularly high working speeds the problem may occur that the zigzag loop just laid moved back against the feed direction and then possibly between the pressure bar and the laying carriage devours.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ausgehend von der bekannten gattungsgemäßen Vorrichtung diese derart zu verbessern, daß auch mit problematischem, elastischem Bandmaterial die Kontinuität des Arbeitsablaufs gesteigert wird, d.h. störungsbedingte Stillstandszeiten der Vorrichtung vermieden werden.The present invention is therefore based on the object starting from the known generic device to improve them in such a way that even with problematic, elastic tape material the continuity of the workflow is increased, i.e. downtimes caused by faults the device can be avoided.

Erfindungsgemäß wird dies dadurch erreicht, daß die Andruckleiste in ihrer Band-Andruckfläche über die Länge verteilt angeordnete Ausnehmungen zur Bildung von Band-Rückhaltekanten aufweist.According to the invention this is achieved in that the pressure bar in their band pressure area along the length distributed recesses to form tape retaining edges having.

Erfindungsgemäß ist somit die Andruckfläche in Längsrichtung der Andruckleiste bereichsweise derart unterbrochen, daß das in Querrichtung mit der Andruckkraft beaufschlagte und hierdurch leicht in Querrichtung gewölbte Bandmaterial sich mit seiner Längskante bereichsweise in die Ausnehmungen hineinwölbt und hierdurch von den Rückhaltekanten "festgehalten" wird. Hierdurch wird eine Zurückbewegung der gerade gelegten Bandschlaufe in Richtung der Zuführseite effektiv vermieden. According to the invention, the pressure surface is thus in the longitudinal direction the pressure bar interrupted in some areas, that the pressure applied in the transverse direction and as a result, strip material that is slightly curved in the transverse direction with its longitudinal edge in areas in the recesses bulges in and thereby from the retaining edges is "held". This will cause a return movement of the just placed tape loop towards the feed side effectively avoided.

Die Erfindung beruht dabei auf der Erkenntnis, daß besonders bei elastischem Bandmaterial von dem bereits gelegten "Schlaufenpaket" eine recht große, gegen die Legerichtung wirkende Rückkraft erzeugt werden kann, die dann die jeweils zuletzt gelegte Schlaufe zurückdrücken kann. Durch die Erfindung wird nun aber die jeweils zuletzt gelegte Schlaufe durch die Rückhaltekanten sicher auch gegen eine hohe Rückkraft festgehalten. Hierdurch kann vorteilhafterweise eine Verarbeitung auch mit problematischen Bandmaterialien mit hohen Arbeitsgeschwindigkeiten von bis zu 100 bis 120 m/min erfolgen.The invention is based on the knowledge that particularly in the case of elastic band material from the one already laid "Loop package" a fairly large, against the laying direction acting back force can be generated, which then each can push back the last loop. By however, the invention will now be the most recent Loop through the retaining edges safely against one high back force. This can advantageously processing even with problematic strip materials with high working speeds of up to 100 to 120 m / min.

Zweckmäßigerweise liegen die insbesondere im wesentlichen geradlinigen Rückhaltekanten auf einer gedachten Verbindungsgeraden, die ihrerseits etwa der Lage und dem Verlauf der jeweils zuletzt gelegten Zickzack-Schlaufe entspricht. Hierdurch wird die jeweils gerade mittels des Legewagens gelegte Schlaufe sofort in den Bereich gelegt, in dem die Rückhaltekanten angeordnet sind, so daß jede Schlaufe sofort durch die Rückhaltekanten festgehalten bzw. fixiert wird.Expediently, these are in particular essentially straight retaining edges on an imaginary connecting line, which in turn is about the location and the course corresponds to the last zigzag loop placed. As a result, the laying is straight put the loop immediately in the area where the Retaining edges are arranged so that each loop immediately held or fixed by the retaining edges becomes.

Die Andruckleiste selbst besteht vorzugsweise aus einem mechanisch einfach und schnell bearbeitbaren Material, wie insbesondere Hartpapier oder dergleichen (bekannter unter dem Warenzeichen "Pertinax"). In diesem Fall ist es besonders vorteilhaft, wenn die Rückhaltekanten jeweils Bestandteil von insbesondere lösbar mit der Andruckleiste verbundenen Einsatzelementen sind, die dann aus einem harten, gegen Reibung verschleißfesten Material, wie Stahl, bestehen können. Diese Ausgestaltung ist insofern von besonderem Vorteil, als besonders bei hohen Arbeitsgeschwindigkeiten eine nicht zu vernachlässigende Reibung von dem Bandmaterial auf die Andruckleiste ausgeübt wird. Durch die Stahl-Einsatzelemente wird somit eine wesentliche Verbesserung bezüglich der Standzeit der Vorrichtung erreicht.The pressure bar itself preferably consists of a mechanically simple and quickly editable material, such as especially hard paper or the like (better known under the trademark "Pertinax"). In this case it is special advantageous if the retaining edges are part of each of releasably connected in particular to the pressure bar Insert elements, which then consist of a hard, wear resistant material such as steel can. In this respect, this configuration is particularly special Advantage as especially at high working speeds a not negligible friction from the strip material is exerted on the pressure bar. Through the steel insert elements becomes a major improvement reached in terms of the life of the device.

Weitere vorteilhafte Ausgestaltungsmerkmale der Erfindung sind in den Unteransprüchen sowie der folgenden Beschreibung enthalten.Further advantageous design features of the invention are in the subclaims and the following description contain.

Anhand eines in der Zeichnung veranschaulichten, bevorzugten Ausführungsbeispiels soll im folgenden die Erfindung näher erläutert werden. Dabei zeigen:

Fig. 1
eine perspektivische Teilansicht einer erfindungsgemäßen Vorrichtung,
Fig. 2
eine perspektivische Prinzipansicht zur Darstellung des Legevorgangs mittels der erfindungsgemäßen Vorrichtung,
Fig. 3
eine Ansicht von oben in Pfeilrichtung III gemäß Fig. 2 auf die erfindungsgemäße Vorrichtung (ohne "obere" Andruckleiste),
Fig. 4
eine vergrößerte Teilansicht auf die Unterseite der erfindungsgemäßen Andruckleiste in Pfeilrichtung IV gemäß Fig. 1,
Fig. 5
einen Teil-Längsschnitt der Andruckleiste in der Schnittebene V-V gemäß Fig. 4,
Fig. 6
einen Querschnitt in der Schnittebene VI-VI gemäß Fig. 4,
Fig. 7
einen Querschnitt in der Schnittebene VII-VII gemäß Fig. 4,
Fig. 8
einen Schnitt durch die erfindungsgemäße Vorrichtung im Bereich der Schnittlinie VIII-VIII gemäß Fig. 3 (entspricht dem Schnitt VIII-VIII in Fig. 9) und
Fig. 9
einen Querschnitt längs der Linie IX-IX in Fig.8 bzw. in Fig. 3.
Based on a preferred embodiment illustrated in the drawing, the invention will be explained in more detail below. Show:
Fig. 1
a partial perspective view of a device according to the invention,
Fig. 2
2 shows a perspective principle view to illustrate the laying process by means of the device according to the invention,
Fig. 3
2 shows a view from above in the direction of arrow III according to FIG. 2 onto the device according to the invention (without “upper” pressure bar),
Fig. 4
2 shows an enlarged partial view of the underside of the pressure bar according to the invention in the direction of arrow IV according to FIG. 1,
Fig. 5
4 shows a partial longitudinal section of the pressure bar in the section plane VV according to FIG. 4,
Fig. 6
3 shows a cross section in the sectional plane VI-VI according to FIG. 4,
Fig. 7
3 shows a cross section in the sectional plane VII-VII according to FIG. 4,
Fig. 8
a section through the device according to the invention in the region of section line VIII-VIII of FIG. 3 (corresponds to section VIII-VIII in Fig. 9) and
Fig. 9
a cross-section along the line IX-IX in Figure 8 or in Fig. 3rd

In den verschiedenen Figuren der Zeichnung sind gleiche Teile stets mit den gleichen Bezugszeichen versehen und werden daher in der Regel jeweils nur einmal beschrieben.The same in the different figures of the drawing Parts always have the same reference numerals and are therefore usually only described once.

Eine erfindungsgemäße Vorrichtung 1, wie sie in Fig. 1 bis 3 veranschaulicht ist, dient dazu, ein flexibles, insbesondere elastisch dehnbares Bandmaterial 2 in paketartig hintereinanderliegende Zickzack-Schlaufen 2a zu falten. Das gefaltete Bandmaterial 2 bzw. dessen Schlaufen 2a weist dann geradlinige, parallel aneinanderliegende Abschnitte sowie seitliche 180°-Kehren 2b auf. In Fig. 2 und 3 sind die Zickzack-Schlaufen 2a aus Gründen der besseren Übersichtlichkeit etwas auseinandergezogen dargestellt; in der Praxis liegen sie aber dicht an dicht aneinander an. Dieses so gefaltete Bandmaterial wird dann in der Textilindustrie weiter verarbeitet; es ermöglicht ein einfaches Abziehen in Richtung beliebiger Verarbeitungsmaschinen. Zudem können so gefaltete Bandmaterialien wesentlich kompakter aufbewahrt und verschickt werden, als dies beispielsweise bei Spulen möglich wäre. A device 1 according to the invention, as shown in Fig. 1 to 3 illustrates serves to be flexible, in particular elastically stretchable band material 2 in packs lying one behind the other Fold zigzag loops 2a. The folded tape material 2 or its loops 2a has then straight, parallel sections as well as lateral 180 ° turns 2b. 2 and 3 are the zigzag loops 2a for reasons of better clarity shown somewhat apart; in the In practice, however, they lie close together. This tape material folded in this way is then used in the textile industry further processed; it allows easy pulling in Towards any processing machine. In addition, so folded tape materials kept much more compact and be sent as, for example, with coils it is possible.

Die erfindungsgemäße Vorrichtung 1 ist in Fig. 1 relativ detailliert dargestellt, im folgenden werden jedoch nur die für die vorliegende Erfindung wesentlichen Bestandteile erläutert werden. Bezüglich der übrigen, hier nicht erläuterten Ausgestaltungsmerkmale wird an dieser Stelle in vollem Umfang auf die eingangs bereits genannten Veröffentlichungen DE 31 14 395 C2 und EP 0 062 753 B1 verwiesen.The device 1 according to the invention is relative in FIG. 1 detailed, but only the essential components for the present invention are explained. Regarding the rest, not explained here Design features are at this point in in full on the publications already mentioned at the beginning DE 31 14 395 C2 and EP 0 062 753 B1.

Die erfindungsgemäße Vorrichtung 1 weist eine Auflageplatte 4 für das zu faltende Bandmaterial 2 bzw. für die gefalteten Zickzack-Schlaufen 2a auf. Oberhalb der Auflageplatte 4 ist ein Legewagen 6 senkrecht zur Band-Einzugsrichtung X hin- und herbewegbar angeordnet, siehe die Pfeile Y in Fig. 2 und 3. Der Legewagen 6 weist zwei Legerollen 7 und 8 auf, die nebeneinander um zwei parallele Achsen drehbar gelagert sind. Die Drehachsen der Legerollen 7, 8 verlaufen senkrecht zur Verschieberichtung Y des Legewagens 6 sowie senkrecht zur Band-Einzugsrichtung X. Zwischen den beiden Umfangsflächen der Legerollen 7, 8 ist ein senkrechter Führungsspalt für das zu legende Bandmaterial 2 gebildet; in diesen Führungsspalt läuft das Bandmaterial 2 in Einzugsrichtung X ein. Das Bandmaterial 2 befindet sich dabei in vertikaler, d.h. aufrechter Stellung. Der Spalt zwischen den Legerollen 7, 8 ist derart bemessen, daß eine Reibungsmitnahme des Bandmaterials 2 durch die Umfangsfläche jeweils einer der beiden Legerollen 7, 8 erfolgt. Die Legerollen 7, 8 sind jeweils gleichsinnig angetrieben, wobei der Drehsinn jeweils abhängig ist von der Verschieberichtung des Legewagens 6.The device 1 according to the invention has a support plate 4 for the band material to be folded 2 or for the folded Zigzag loops 2a. Above the platen 4 is a laying carriage 6 perpendicular to the tape feed direction X arranged back and forth, see arrows Y in Fig. 2 and 3. The laying carriage 6 has two laying rollers 7 and 8, which are mounted side by side rotatable about two parallel axes are. The axes of rotation of the laying rollers 7, 8 run vertically to the direction of displacement Y of the laying carriage 6 and vertically to the tape feed direction X. Between the two peripheral surfaces the laying rollers 7, 8 is a vertical guide gap formed for the strip material 2 to be laid; in The strip material 2 runs in this feed gap in the feed direction X a. The strip material 2 is located in more vertical, i.e. upright position. The gap between the laying rollers 7, 8 is dimensioned such that friction is entrained of the strip material 2 through the peripheral surface in each case one of the two laying rolls 7, 8 takes place. The laying rolls 7, 8 are each driven in the same direction, whereby the direction of rotation depends on the direction of displacement of the laying carriage 6.

Diese Abhängigkeit ist in den Fig. 2 und 3 veranschaulicht, wonach bei der Verschiebung des Legewagens 6 nach links (durchgezogener Pfeil Y) die Legerollen 7, 8 rechts herum drehen (durchgezogener Pfeil W). Bei einer Verschiebung nach rechts (gestrichelter Pfeil Y) drehen die Legerollen 7, 8 links herum (gestrichelter Pfeil W). Das Bandmaterial 2 wird hierdurch jeweils von der in Verschieberichtung hinteren Legerolle 7 bzw. 8 durch Anlage mitgenommen und eingezogen und so weitertransportiert. Durch den beschriebenen Antrieb wird eine Bandlegung in regelmäßigen Zickzack-Schlaufen 2a erreicht. Die Änderung der Drehrichtung W der Legerollen 7, 8 erfolgt jeweils am Umkehrpunkt der Verschiebebewegung des Legewagens 6. Durch das Verlegen des Bandmaterials 2 werden die gelegten Zickzack-Schlaufen paketartig weitergeschoben, d.h. in einer der Einzugsrichtung X entsprechenden Abführrichtung X' weiterbewegt.This dependency is illustrated in FIGS. 2 and 3, after which when the laying carriage 6 is shifted to the left (solid arrow Y) roll 7, 8 clockwise turn (solid arrow W). With a shift to the right (dashed arrow Y) the laying rolls turn 7, 8 to the left (dashed arrow W). The tape material 2 is thereby each of the rear in the direction of displacement Laying roll 7 or 8 taken along by the system and drawn in and so on. By the described The drive is a band laying in regular zigzag loops 2a reached. The change in the direction of rotation W der Laying rolls 7, 8 take place at the reversal point of the shifting movement of the laying carriage 6. By laying the Band material 2 become the zigzag loops pushed on like a packet, i.e. in one of the feed directions X corresponding discharge direction X 'moved on.

Um das relativ schnell einlaufende Bandmaterial 2 im Verlegebereich hinter dem Legewagen 6 abzubremsen und so die Schlaufenbildung zu begünstigen, sind Bremsmittel vorgesehen, die die Längskanten des Bandmaterials 2 mit einer Andruckkraft F im Faltbereich beaufschlagen. Wesentlicher Bestandteil dieser Bremsmittel ist eine Andruckleiste 12, die im Bereich der Legerollen 7, 8 an deren Band-Austrittsseite ausgeordnet ist, und deren Länge mindestens gleich dem Bewegungsbereich des Legewagens 6 ist. Die Andruckleiste 12 verläuft hierbei parallel zur Verschieberichtung des Legewagens 6 und vorzugsweise oberhalb von diesem, so daß sie die obere Längskante des Bandmaterials 2 beaufschlagt, indem sie mit ihrer dem Band zugekehrten, unteren Andruckfläche 14 das Bandmaterial 2 etwas von oben nach unten drückt. Im dargestellten Ausführungsbeispiel wirkt die Andruckleiste 12 mit einer unteren, im Bereich der Auflageplatte 4 angeordneten Bremsleiste 16 zusammen, indem das Band bzw. dessen zuletzt gelegte Schlaufe 2a zwischen der Bremsleiste 16 und der Andruckleiste 12 praktisch eingespannt wird.Around the relatively quickly incoming strip material 2 in the laying area to slow down behind the laying carriage 6 and so the To promote loop formation, braking means are provided, which the longitudinal edges of the strip material 2 with a Apply pressure force F in the folding area. More essential Part of this brake means is a pressure bar 12, those in the area of the laying rolls 7, 8 on their strip exit side is arranged, and their length at least equal the range of movement of the laying carriage 6. The pressure bar 12 runs parallel to the direction of displacement of the laying carriage 6 and preferably above this, see above that it acts on the upper longitudinal edge of the strip material 2, by using the lower one facing the tape Pressure surface 14 the strip material 2 somewhat from the top presses down. In the illustrated embodiment acts the pressure bar 12 with a lower, in the area of the platen 4 arranged brake bar 16 together by the band or its last loop 2a between the brake bar 16 and the pressure bar 12 practically clamped becomes.

Die vorliegende Erfindung betrifft nun eine Verbesserung im Bereich der Andruckleiste 12. Hierzu wird insbesondere auf Fig. 4 bis 9 verwiesen, wonach erfindungsgemäß die Andruckleiste 12 in ihrer Band-Andruckfläche 14 über die Leistenlänge verteilt angeordnete Ausnehmungen 18 zur Bildung von Band-Rückhaltekanten 20 aufweist. Wie in Fig. 8 und 9 deutlich wird, ist somit erfindungsgemäß die Andruckfläche 14 in Längsrichtung der Andruckleiste 12 bereichsweise derart unterbrochen, daß das in Querrichtung mit der Andruckkraft F beaufschlagte Bandmaterial 2 bzw. die jeweilige Zickzack-Schlaufe 2a sich mit der Band-Längskante 22 bereichsweise in die Ausnehmungen 18 hineinwölbt und hierdurch von den Rückhaltekanten 20 festgehalten wird. Hierdurch wird effektiv eine Zurückbewegung der gerade gelegten Bandschlaufe 2a in Richtung der Zuführseite 10 vermieden.The present invention now relates to an improvement in Area of the pressure bar 12. In particular, on 4 to 9, according to which the pressure bar according to the invention 12 in their band pressure surface 14 over the length of the last distributed recesses 18 to form Has band retaining edges 20. As clearly shown in Figs. 8 and 9 is, according to the invention, the pressure surface 14 in some areas in the longitudinal direction of the pressure bar 12 interrupted that in the transverse direction with the pressing force F acted on band material 2 or the respective zigzag loop 2a with the band longitudinal edge 22 in some areas bulges into the recesses 18 and thereby from the Retaining edges 20 is held. This will make it effective a return movement of the tape loop 2a just laid avoided in the direction of the feed side 10.

Gemäß Fig. 4 sind die Ausnehmungen 18 derart ausgebildet und angeordnet, daß die Rückhaltekanten 20 jeweils im wesentlichen geradlinig verlaufen und hierbei insbesondere auf einer gemeinsamen gedachten Verbindungsgeraden 24 liegen, die ihrerseits etwa der Lage und dem Verlauf der jeweils zuletzt gelegten Zickzack-Schlaufe 2a entspricht. Hierbei werden die Ausnehmungen 18 in Richtung der Zuführseite 10 durch die Rückhaltekanten 20 begrenzt.4, the recesses 18 are formed in this way and arranged that the retaining edges 20 each in run essentially rectilinearly and in particular on a common imaginary connecting straight line 24 lie, which in turn are about the location and course of the corresponds to the last zigzag loop 2a. Here, the recesses 18 in the direction of the feed side 10 limited by the retaining edges 20.

Es ist besonders vorteilhaft, wenn die Rückhaltekanten 20 jeweils Bestandteil von insbesondere lösbar mit der Andruckleiste 12 verbundenen Einsatzelementen 26 sind. Im dargestellten Ausführungsbeispiel sind die Einsatzelemente 26 mit der Andruckleiste 12 verschraubt. Die Einsatzelemente 26 bilden hierbei auch jeweils einen Teilbereich der Andruckfläche 14, wobei zweckmäßigerweise zur Verschraubung entsprechende Senkkopfschrauben 28 verwendet werden. Durch die Einsatzelemente 26 ergibt sich der Vorteil, daß eine erhöhte Verschleißfestigkeit gegen durch das Band verursachte Reibung im Bereich der Rückhaltekanten 20 erreicht werden kann, indem die Einsatzelemente 26 aus einem entsprechend verschleißfesten Material, insbesondere Stahl, bestehen. Die übrige Andruckleiste 12 kann vorteilhafterweise aus einem anderen, mechanisch leicht und schnell bearbeitbaren Material bestehen. Besonders geeignet ist Hartpapier (Phenoplast-Schichtstoff mit Papier-Harz-Träger, bekannter unter dem Warenzeichen "Pertinax").It is particularly advantageous if the retaining edges 20 each part of in particular releasably with the pressure bar 12 connected insert elements 26 are. in the illustrated embodiment are the insert elements 26 screwed to the pressure bar 12. The insert elements 26 each also form a partial area of the Pressure surface 14, expediently for screwing appropriate countersunk screws 28 are used. By the insert elements 26 have the advantage that a increased wear resistance against caused by the tape Friction in the area of the retaining edges 20 reached can be made by inserting the elements 26 accordingly wear-resistant material, especially steel, consist. The remaining pressure bar 12 can advantageously from another, mechanically light and fast machinable material. Is particularly suitable Hard paper (phenolic laminate with paper resin backing, better known under the trademark "Pertinax").

Die die Rückhaltekanten 20 bildenden Ausnehmungen 18 sind zweckmäßigerweise als Vertiefungen bzw. Bereiche mit reduzierter Dicke der Andruckleiste 12 ausgebildet. Diese Vertiefungen erstrecken sich ausgehend von den Rückhaltekanten 20 in Einzugs- bzw. Abführrichtung X, X' gesehen, d.h. quer bzw. senkrecht zur Andruckleiste 12, vorzugsweise über die gesamte übrige Breite der Andruckleiste 12. Dabei sitzen die bevorzugt vorgesehenen Einsatzelemente 26 am "geschlossenen" Ende der Vertiefungen und füllen diese hier so aus, daß in diesem Bereich die Andruckfläche 14 durchgehend vorhanden ist.The recesses 18 forming the retaining edges 20 are expediently as depressions or areas with reduced Thickness of the pressure bar 12 is formed. These recesses extend from the retaining edges 20 seen in the feed or discharge direction X, X ', i.e. across or perpendicular to the pressure bar 12, preferably via the Total remaining width of the pressure bar 12. Sit the preferably provided insert elements 26 on the "closed" End of the wells and fill them out here so that the pressure surface 14 is continuously present in this area is.

Wie sich ferner aus Fig. 4, 5, 7 und 8 ergibt, weist die Andruckleiste 12 bevorzugt in ihrer Andruckfläche 14 jeweils in Leisten-Längsrichtung benachbart neben den die Rückhaltekanten 20 bildenden Ausnehmungen 18 weitere, insbesondere auf der die Rückhaltekanten 20 verbindenden Verbindungsgeraden 24 liegende Ausnehmungen 30 auf. Diese weiteren Ausnehmungen 30 unterstützen bzw. fördern die "wellenartige" Wölbung der Band-Längskante 22, siehe insbesondere Fig. 8. Im dargestellten Ausführungsbeispiel sind die weiteren Ausnehmungen 30 als kreisförmige Vertiefungen ausgebildet, deren Mittelpunkte etwa auf der Verbindungsgeraden 24 liegen.4, 5, 7 and 8, the Pressure bar 12 preferably in their pressure surface 14 in each case in the longitudinal direction adjacent to the last Retaining edges 20 forming recesses 18 more, in particular on the connecting straight line connecting the retaining edges 20 24 lying recesses 30. This further recesses 30 support or promote the "Wavy" curvature of the longitudinal edge 22 of the band, see in particular Fig. 8. Are in the illustrated embodiment the further recesses 30 as circular depressions trained, the centers of which are approximately on the connecting straight line 24 lie.

Es ist ferner von besonderem Vorteil, wenn die Andruckfläche 14 der Andruckleiste 12 in Abführrichtung X' über in Leisten-Längsrichtung verlaufende, die Dicke der Andruckleiste 12 reduzierende Stufen 32 (s. hierzu insbesondere Fig. 4, 6, 7 und 9) in einen Entspannungsflächenbereich 34 übergeht, der das Bandmaterial 2 bzw. die gelegten Schlaufen 2a mit einer reduzierten Andruckkraft F' beaufschlagt. Die reduzierte Andruckkraft F' kann gegen Null gehen. Dieses Merkmal erleichtert den Weitertransport des gefalteten Schlaufenpaketes.It is also of particular advantage if the pressure surface 14 of the pressure bar 12 in the discharge direction X 'in Last lengthwise direction, the thickness of the pressure bar 12 reducing stages 32 (see in particular 4, 6, 7 and 9) in a relaxation area 34 passes over, the band material 2 or the loops 2a with a reduced pressure force F '. The reduced pressure force F 'can go to zero. This feature facilitates the further transport of the folded Loop package.

Gemäß Fig. 4 sind zweckmäßigerweise die zwischen der Andruckfläche 14 und dem Entspannungsflächenbereich 34 gebildeten Stufen 32 von den Rückhaltekanten 20 in Abführrichtung X' gesehen um eine Andruckstrecke A beabstandet, die vorzugsweise derart bemessen ist, daß in diesem Bereich jeweils nur eine bestimmte Anzahl (die von der Dicke des jeweils verarbeiteten Bandmaterials 2 abhängt) von Zickzack-Schlaufen 2a angeordnet ist. In der Praxis wird die Andruckstrecke A 10 bis 15 mm, insbesondere etwa 13 mm, betragen. Durch diese vorteilhafte Maßnahme wird erreicht, daß die durch die Andruckkraft F bewirkte Reibung zwischen der Andruckleiste 12 bzw. deren Andruckfläche 16 und dem Bandmaterial 2 stets so gering bleibt, daß ein Weiterschieben der paketartig aneinanderliegenden Schlaufen durch den Faltvorgang problemlos möglich ist.4 are expediently those between the pressure surface 14 and the relaxation surface area 34 Steps 32 from the retaining edges 20 in the discharge direction X 'seen spaced by a pressure distance A, which is preferably dimensioned such that in this area each only a certain number (depending on the thickness of the each processed band material 2 depends on zigzag loops 2a is arranged. In practice, the Pressure distance A 10 to 15 mm, in particular about 13 mm, be. This advantageous measure achieves that the friction caused by the pressing force F between the pressure bar 12 or its pressure surface 16 and the Tape material 2 always remains so low that pushing on the loops that are stacked together through the Folding process is easily possible.

Wie sich des weiteren aus Fig. 4, 5 und 8 ergibt, ist in einer vorteilhaften Ausgestaltung der Erfindung vorgesehen, daß die Andruckleiste 12 in ihren beiden den freien Enden zugekehrten Seitenbereichen des Bewegungsbereichs des Legewagens 6, d.h. in den Endbereichen der maximalen Länge der Zickzack-Schlaufen 2a, über die gesamte Leistenbreite in der Dicke derart reduziert ist, daß hier anstatt der Andruckfläche jeweils eine Entspannungsfläche 36 derart gebildet ist, daß die Zickzack-Schlaufen 2a im Bereich ihrer 180°-Kehren 2b maximal mit einer - gegenüber der eigentlichen Anpreßkraft F im Bereich der Andruckfläche 14 - reduzierten Anpreßkraft F'' beaufschlagt werden. Ähnlich wie die Kraft F' kann auch die Anpreßkraft F'' gegen Null gehen. Diese Maßnahme begünstigt die Schlaufenbildung, d.h. die Bildung der 180°-Kehren 2b.4, 5 and 8, is in an advantageous embodiment of the invention, that the pressure bar 12 in both of its free ends facing side areas of the movement range of the laying carriage 6, i.e. in the end areas of the maximum length of the Zigzag loops 2a, across the entire width of the last the thickness is reduced so that here instead of the pressure surface in each case a relaxation area 36 is formed in this way is that the zigzag loops 2a in the area of their 180 ° turns 2b maximum with one - compared to the actual one Contact force F in the area of the pressure surface 14 - reduced Contact force F '' can be applied. Similar to that Force F ', the contact pressure F' 'can also go to zero. This measure favors loop formation, i.e. the Formation of the 180 ° turns 2b.

Da die Legerollen 7, 8 als Stangenrollen ausgebildet sind (vgl. Fig. 1), ist die Andruckleiste 12 entsprechend verzahnt ausgebildet. Hierdurch wird erreicht, daß der Umfang der Legerollen 7, 8 im Legebereich etwa in der Mitte der Andruckleiste 12 verläuft. Dies bedeutet, daß die Zähne der Andruckleiste 12 etwa bis kurz vor die jeweilige Rollenmitte ragen. Zweckmäßigerweise sind die Zähne der Andruckleiste 12 abgerundet.Since the laying rollers 7, 8 are designed as bar rollers (see FIG. 1), the pressure bar 12 is interlocked accordingly educated. This ensures that the scope the laying rolls 7, 8 in the laying area approximately in the middle of the Pressure bar 12 runs. This means that the teeth of the Pressure bar 12 approximately until just before the respective center of the roll protrude. The teeth of the pressure bar are expedient 12 rounded.

Gemäß Fig. 4 ist hierbei nun ferner vorgesehen, daß die einzelnen Zähne der Andruckleiste 12 durch in Leisten-Querrichtung durchgehende, rillenartige Vertiefungen 38 praktisch voneinander getrennt sind. Hierbei unterbrechen die Vertiefungen 38 ebenfalls die Andruckfläche 14, was wiederum zu einer Begünstigung des Wellenverlaufs der Band-Längskante 22 beiträgt, s. Fig. 8.4 is now also provided here that the individual teeth of the pressure bar 12 by in the cross-bar direction continuous, groove-like depressions 38 practical are separated from each other. Here interrupt the Wells 38 also the pressure surface 14, which in turn to favor the wave shape of the longitudinal edge of the belt 22 contributes, p. Fig. 8.

Wie sich schließlich noch aus Fig. 4 ergibt, besitzt die Andruckleiste 12 zwecks Halterung an der erfindungsgemäßen Vorrichtung 1 Senklöcher 40, die grundsätzlich in beliebigen Bereichen angeordnet sein können. Gemäß Fig. 4 ist an jedem Ende der Andruckleiste 12 ein solches Senkloch 40 angeordnet, und weitere Senklöcher 40 können im Bereich der Ausnehmungen 18 angeordnet sein.As can finally be seen from FIG. 4, the Pressure bar 12 for the purpose of mounting on the invention Device 1 countersunk holes 40, basically in any Areas can be arranged. 4 is on Such a countersunk hole 40 at each end of the pressure bar 12 arranged, and further countersunk holes 40 in the area of Recesses 18 may be arranged.

Claims (10)

  1. Device (1) for folding a flexible continuously supplied tape material (2), in particular an elastic textile tape, in zigzag loops (2a), with a guide carriage (6) which is movable back and forth and has two guide rollers (7, 8) which are arranged next to one another with mutually parallel axes and are driven to rotate in the same direction and between which the tape material (2) is drawn in from a supply side (10), is folded as a result of the back-and-forth movement of the guide carriage (6), taking place perpendicularly to the tape draw-in direction (X) and is moved further in a discharge direction (X') corresponding to the draw-in direction (X), and with braking means for loading the longitudinal edges of the tape material (2) with a pressure force (F) in the folding region, there being arranged as braking means in the region of the guide rollers (7, 8), on the tape exit side of the latter, a pressure bar (12), the length of which is at least equal to the range of movement of the guide carriage (6) and which runs parallel thereto, characterized in that the pressure bar (12), in its tape pressure surface (14), has recesses (18) for forming tape retention edges (20), the said recesses being arranged so as to be distributed over the length.
  2. Device according to Claim 1, characterized in that the recesses (18) are designed and arranged in such a way that the, in particular, essentially rectilinear retention edges (20), delimiting the recesses (18) in the direction of the supply side (10), lie on an imaginary straight connecting line (24) which, in turn, corresponds approximately to the position and shape of the zigzag loop (2a) last folded in each case.
  3. Device according to Claim 1 or 2, characterized in that the retention edges (20) are in each case an integral part of insert elements (26) connected, in particular, releasably to the pressure bar (12).
  4. Device according to Claim 3, characterized in that the insert elements (26) consist of a hard material resistant to frictional wear, in particular steel, the pressure bar (12) moreover consisting preferably of a mechanically easily and quickly machinable material, such as hard paper or the like.
  5. Device according to one or more of Claims 1 to 4, characterized in that the recesses (18) forming the retention edges (20) are designed as depressions which, starting from the retention edges (20), extend preferably over the entire remaining width of the pressure bar (12), as seen in the draw-in or discharge direction (X, X').
  6. Device according to one or more of Claims 1 to 5, characterized in that the pressure bar (12), in its pressure surface (14), has, in each case longitudinally in the vicinity of and next to the recesses (18) forming the retention edges (20), further recesses (30) which, in particular, lie on the straight connecting line (24) connecting the retention edges (20).
  7. Device according to Claim 6, characterized in that the further recesses (30) are designed as, in particular, circular depressions.
  8. Device according to one or more of Claims 1 to 7, characterized in that the pressure surface (14) of the pressure bar (12) merges in the discharge direction (X'), via steps (32) running in the longitudinal direction and reducing the thickness of the pressure bar (12), into a stress-relieving surface region (34) bringing about a reduced pressure force (F').
  9. Device according to Claim 8, characterized in that the steps (32) formed between the pressure surface (14) and the stress-relieving surface region (34) are spaced from the retention edges (20), as seen in the discharge direction (X'), by the amount of a pressure zone (A) which is dimensioned in such a way that in each case only a specific number of folded zigzag loops (2a) are arranged in this region, the pressure zone (A) being preferably 10 to 15 mm, in particular about 13 mm.
  10. Device according to one or more of Claims 1 to 9, characterized in that the pressure bar (12) is reduced in thickness, over the entire bar width, in its side regions facing the free ends, in such a way that, instead of the pressure surface, in each case a stress-relieving surface (36) is formed, in such a way that the zigzag loops (2a) are loaded at most with a reduced pressure force (F'') in the region of their 180°-bends (2b).
EP96118247A 1995-12-09 1996-11-14 Apparatus for folding webs in zig-zag loops Expired - Lifetime EP0778236B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29519515U 1995-12-09
DE29519515U DE29519515U1 (en) 1995-12-09 1995-12-09 Device for folding a band material in zigzag loops

Publications (2)

Publication Number Publication Date
EP0778236A1 EP0778236A1 (en) 1997-06-11
EP0778236B1 true EP0778236B1 (en) 1999-09-22

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EP96118247A Expired - Lifetime EP0778236B1 (en) 1995-12-09 1996-11-14 Apparatus for folding webs in zig-zag loops

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EP (1) EP0778236B1 (en)
DE (2) DE29519515U1 (en)
ES (1) ES2140011T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003233903A1 (en) 2002-06-27 2004-01-19 Textilma Ag System for packaging a flexible web that is layered in zigzag loops, in particular a textile web
DE102005044772A1 (en) * 2004-10-07 2006-04-13 Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg Method and device for producing an insulating element made of fibers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3114395C2 (en) 1981-04-09 1983-04-28 Hans 5600 Wuppertal Affüpper Device for zigzag folding in loops of a continuously fed, flexible tape
FR2657858B1 (en) * 1990-02-08 1992-04-30 Cheynet Fils Ets J IMPROVED DEVICE FOR ZIG-ZAG BENDING OF A FLEXIBLE STRIP OR TAPE OF CONTINUOUSLY TEXTILE MATERIAL.
US5366434A (en) * 1992-11-06 1994-11-22 G. Fordyce Company, Inc. Folding apparatus for narrow paper

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DE59603144D1 (en) 1999-10-28
DE29519515U1 (en) 1996-01-25
EP0778236A1 (en) 1997-06-11
ES2140011T3 (en) 2000-02-16

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