EP3569373A1 - Transverse cutting device for a coiling machine - Google Patents

Transverse cutting device for a coiling machine Download PDF

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Publication number
EP3569373A1
EP3569373A1 EP19171017.7A EP19171017A EP3569373A1 EP 3569373 A1 EP3569373 A1 EP 3569373A1 EP 19171017 A EP19171017 A EP 19171017A EP 3569373 A1 EP3569373 A1 EP 3569373A1
Authority
EP
European Patent Office
Prior art keywords
cross
cutting device
hold
flange
web
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
EP19171017.7A
Other languages
German (de)
French (fr)
Other versions
EP3569373B1 (en
Inventor
Krzysztof Barlog
Andreas Detmers
Andreas HACHMANN
Bernd Lukowski
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.)
Truetzschler GmbH and Co KG
Original Assignee
Truetzschler GmbH and Co KG
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Filing date
Publication date
Application filed by Truetzschler GmbH and Co KG filed Critical Truetzschler GmbH and Co KG
Priority to PL19171017T priority Critical patent/PL3569373T3/en
Publication of EP3569373A1 publication Critical patent/EP3569373A1/en
Application granted granted Critical
Publication of EP3569373B1 publication Critical patent/EP3569373B1/en
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Anticipated expiration legal-status Critical

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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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/22—Safety devices specially adapted for cutting machines
    • B26D7/24—Safety devices specially adapted for cutting machines arranged to disable the operating means for the cutting member
    • 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
    • B26D1/04—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 linearly-movable cutting member
    • B26D1/06—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 linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/10—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 linearly-movable cutting member wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge
    • B26D1/105—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 linearly-movable cutting member wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D1/12—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 cutting member moving about an axis
    • B26D1/14—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/157—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
    • B26D1/18—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable carriage
    • B26D1/185—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable carriage for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D1/12—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 cutting member moving about an axis
    • B26D1/14—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/20—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with a fixed member
    • B26D1/205—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with a fixed member for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/007—Control means comprising cameras, vision or image processing systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/26—Cutting-off the web running to the wound web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/26—Cutting-off the web running to the wound web roll
    • B65H19/265—Cutting-off the web running to the wound web roll using a cutting member moving linearly in a plane parallel to the surface of the web and along a direction crossing the web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5151—Cutting handled material transversally to feeding direction
    • B65H2301/51512—Cutting handled material transversally to feeding direction using a cutting member moving linearly in a plane parallel to the surface of the web and along a direction crossing the handled material
    • 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
    • B65H2701/19—Specific article or web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/84—Paper-making machines

Definitions

  • the present invention relates to a cross-cutting or cross-cutting device for a winding machine for winding web-like material, preferably for a fibrous or nonwoven web, with a cross-cutting or transverse cutting means for cutting or severing the web after completion of the winding process according to the preamble of claim 1.
  • a web of textile or non-textile fibers this is wound on a winder by means of a winding shaft at the end of the system. If the roll of material has reached a defined diameter, the web is cut by means of a beater blade or alternatively by means of a cross-cutting or cross-cutting device and the material roll is transferred to a waiting or storage position.
  • the cross-cutting device usually comprises a rotating knife, which is movable transversely to the web and cuts them. So that when cutting the web this can not escape, a hold-down interacts with the knife. This ensures that the web is forcibly immersed in the rotating blade and thus cut.
  • the web can pile up between the rotating blade and the hold-down, so that due to the forces occurring in consequence the hold-down can be demolished, which can lead to further damage to the cross-cutting device.
  • the invention is therefore based on the object to improve the cross-cutting device so that a damming of the web and damage to the device is prevented.
  • the invention includes the technical teaching that the cross-cutting device for a winding machine extends transversely to the transport direction of a web and is designed to pivot for the cutting process of the web from a rest position at least partially in the plane of the web.
  • the cross-cutting device comprises at least one knife which is arranged to be movable along a guide orthogonal to the transport direction of the web. The knife interacts continuously with a hold-down during the cutting process. If a jam of material forms between the knife and the hold-down device, the hold-down device according to the invention is designed to move from an operating position into an evasive position. This tearing of the blank holder is avoided, which can lead to further damage to the cross-cutting device.
  • the knife is designed as a rotary blade and the hold-down about the pivot point of the knife pivotally mounted.
  • the hold-down device deviates from the occurring forces due to the movement of movement transversely to the material web due to the pivoting movement.
  • the hold-down is arranged on a flange which cooperates with a holder arranged parallel to the knife.
  • the pivoting movement of the blank holder is thus independent of the rotation of the blade so that it can cut free the jam material even without the hold-down, or uncut the web over the knife is guided if the knife is dull. Another accumulation of the material is thus avoided.
  • the holder has an arcuate groove in which a guide element of the flange engages.
  • a guide element of the flange engages.
  • the pivotal movement of the flange and thus the hold-down is limited.
  • the flange has a spring-loaded latching device which holds the flange with the hold-down in the operating position, a too early pivoting of the hold-down in the avoidance position can be avoided with variations in the material thickness and material strength.
  • the spring load of the locking device is adjustable, so that an adaptation of the pivoting movement to different webs (thickness, material, etc.) is possible.
  • the flange with the hold-down can be designed to be pivotable manually or automatically from the avoidance position into the operating position. Both the automatic pivoting as well as the manual pivoting of the avoidance position into the operating position by means of a lever prevents injury to the operator of the knife blade.
  • FIG. 1 shows an exemplary winding machine 1 with the cross cutting device 10 according to the invention.
  • the winding machine 1 is connected to the inlet region 2 at the end of a system on which fibers are produced into a nonwoven or Nonwovenseck.
  • a non-designated web runs over the inlet region 2 in the winding machine 1 and is wound on a winding shaft 4 to a winding, not shown.
  • a winding shaft 4 is shown in reserve position.
  • Above a contact roller 5, which supports the winding process, a transverse cutting device 10 is shown, which will be described in detail in the following figures.
  • FIGS. 2 and 3 show in an enlarged view the cross-cutting device 10, which extends transversely across the contact roller 5 and by means of rotatably mounted flanges 11 about the axis of rotation of the contact roller 5 in the tensioned web pivots (arrow).
  • the cross-cutting device 10 is in the waiting position until the winding is finished wound. After a predetermined winding length, the cross-cutting device 10 pivots in the plane of the web, wherein the knife 13 is located laterally outside of the web and is below the level of the web. With the cutting movement, the knife 13 moves laterally into the web and breaks them.
  • a wedge-shaped hold-down 14 is then above the plane of the web, so that it is between the knife 13 and the hold-down 14 and is divided by the rotation and transverse movement of the knife over the web.
  • a linear guide 12 is arranged, along which the knife 13 is guided across the web driven and divides the web.
  • the knife 13 is arranged at an angle of 30 ° to 60 ° to the longitudinal axis of the contact roller 5, wherein the size of the angle depends inter alia on the winding speed in order to achieve a possible rectangular section to the winding direction.
  • FIG. 4 shows an enlarged view of a portion of the cross cutting device 10, in which the panel 15 of the front and back has been removed.
  • the knife 13 is designed as a rotary knife, which is set by means of motor or pneumatic drive 17 in rotation.
  • the knife 13 is rotatably mounted on a frame 16, on which also the drive 17 is arranged rotationally fixed.
  • a holder 18 for the Hold-down 14 is arranged, which is at least partially pivotable about this holder 18.
  • the hold-down 14 is attached to a flange 20 which is guided with a guide element 21, not visible here, in a groove 19 of the holder 18 on a circular path.
  • the hold-down 14 In operating position, when the knife 13 cuts the web, the hold-down 14 is in this upper position, wherein the flange 20 is located with the guide member 21 in the upper stop of the groove 19.
  • the hold-down 14 is held with the flange 20 by means not shown spring elements in this position.
  • the spring elements are designed to be adjustable in order to be able to vary the latching forces for this position. According to the prior art, a blunt knife 13 led to a jam, which often led to a tearing of the blank holder 14.
  • the hold-down 14 with the flange 20 can be moved into a lower deflection position (FIG. FIG. 5 ) are pivoted, so that the cross-cutting device 10 is not damaged.
  • the force of the spring elements is overcome and the flange 20 moves with the hold-down 14 along the circular groove 19 in the lower alternative position.
  • the flange 20 with the hold-down 14 by means of handle 23 and lever 22 manually in the operating position are pivoted.
  • Handle 23 and lever 22 are not fixedly mounted, but can be inserted in the avoidance position in a bore of the flange.
  • the groove 19 is formed so that the hold-down 14 can be pivoted to the flange 20 by about 90 ° from engagement with the knife 13, which takes place in this view in the clockwise direction in the material direction.
  • the position of the blank holder 14 or the flange 20 can be monitored by means of a sensor, so that upon pivoting of both components, a signal is transmitted to the control of the winding machine 1.
  • This can trigger a warning signal to the operator or automatically disable the winding machine.
  • the flange 20 with the hold-down 14 can also be reset automatically.
  • the blade 10 is stationary and the frame 16 has been moved along the guide 12 back to the waiting position on the flange 11 outside the web.
  • FIG. 6 shows a sectional view through the cross-cutting device, in which the knife 13 is arranged parallel to the holder 18.
  • the guide member 21 can be seen that the flange 20 leads along the groove.
  • the hold-down 14 can be seen, which forms a small vertical gap with the knife 13 in this illustration.
  • an exemplary locking element 24 is formed, which can act as a spring-loaded pin with a conical or rounded tip with a recess 25 together.
  • the latching element 24 can be pressed out of the recess 25 after a breakaway force predefined by the spring force, so that the flange 20 can pivot with the hold-down device 14 along the groove 19 into the avoidance position.
  • Alternative locking devices are of course possible within the scope of the invention.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Replacement Of Web Rolls (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

Die vorliegende Erfindung betrifft eine Querschneidvorrichtung (10) für eine Wickelmaschine (1), die sich quer zur Transportrichtung einer Warenbahn erstreckt und ausgebildet ist, für den Schneidvorgang der Warenbahn von einer Ruheposition zumindest teilweise in die Ebene der Warenbahn hinein zu verschwenken, umfassen zumindest ein Messer (13), das entlang einer Führung (12) orthogonal zur Transportrichtung der Warenbahn verfahrbar angeordnet ist, mit einem Niederhalter (14), der beim Schneidvorgang kontinuierlich mit dem Messer (13) zusammenwirkt, wobei der Niederhalter (14) ausgebildet ist, von einer Betriebsposition in eine Ausweichposition zu verfahren.

Figure imgaf001
The present invention relates to a cross-cutting device (10) for a winding machine (1), which extends transversely to the transport direction of a web and is adapted to pivot for the cutting process of the web from a rest position at least partially in the plane of the web into at least one Knife (13) which is arranged along a guide (12) orthogonal to the transport direction of the web movable, with a hold-down (14), which cooperates continuously during the cutting operation with the knife (13), wherein the hold-down (14) is formed of to move to an operating position in an alternative position.
Figure imgaf001

Description

Die vorliegende Erfindung betrifft eine Quertrenn- oder Querschneidvorrichtung für eine Wickelmaschine zum Wickeln von bahnförmigen Material, vorzugsweise für eine Faserstoff- oder Nonwovensbahn, mit einem Quertrenn- oder Querschneidemittel zum Durchschneiden oder Durchtrennen der Materialbahn nach Beendigung des Wickelvorganges nach dem Oberbegriff von Anspruch 1.The present invention relates to a cross-cutting or cross-cutting device for a winding machine for winding web-like material, preferably for a fibrous or nonwoven web, with a cross-cutting or transverse cutting means for cutting or severing the web after completion of the winding process according to the preamble of claim 1.

Bei der Herstellung einer Warenbahn aus textilen oder nichttextilen Fasern wird diese am Ende der Anlage auf einem Wickler mittels einer Wickelwelle aufgewickelt. Hat die Materialrolle einen definierten Durchmesser erreicht, wird die Warenbahn mittels eines Schlagmessers oder alternativ mittels einer Quertrenn- oder Querschneidevorrichtung geschnitten und die Materialrolle in eine Warte- oder Lagerposition überführt. Die Querschneidevorrichtung umfasst in der Regel ein rotierendes Messer, das quer zur Warenbahn verfahrbar ist und diese zerschneidet. Damit beim Zerschneiden der Warenbahn diese nicht ausweichen kann, wirkt ein Niederhalter mit dem Messer zusammen. Damit wird sichergestellt, dass die Warenbahn in das rotierende Messer zwangsweise eintaucht und damit geschnitten wird.In the production of a web of textile or non-textile fibers, this is wound on a winder by means of a winding shaft at the end of the system. If the roll of material has reached a defined diameter, the web is cut by means of a beater blade or alternatively by means of a cross-cutting or cross-cutting device and the material roll is transferred to a waiting or storage position. The cross-cutting device usually comprises a rotating knife, which is movable transversely to the web and cuts them. So that when cutting the web this can not escape, a hold-down interacts with the knife. This ensures that the web is forcibly immersed in the rotating blade and thus cut.

Lässt die Schärfe des Messers nach, kann sich die Warenbahn zwischen dem rotierenden Messer und dem Niederhalter aufstauen, so dass aufgrund der auftretenden Kräfte in Folge der Niederhalter abgerissen werden kann, was zu einer weiteren Beschädigung der Querschneidevorrichtung führen kann.Lets the sharpness of the knife after, the web can pile up between the rotating blade and the hold-down, so that due to the forces occurring in consequence the hold-down can be demolished, which can lead to further damage to the cross-cutting device.

Der Erfindung liegt daher die Aufgabe zugrunde, die Querschneidevorrichtung so zu verbessern, dass ein Aufstauen der Warenbahn und eine Beschädigung der Vorrichtung verhindert wird.The invention is therefore based on the object to improve the cross-cutting device so that a damming of the web and damage to the device is prevented.

Die Lösung dieser Aufgabe erfolgt durch die Merkmale von Anspruch 1.The solution of this object is achieved by the features of claim 1.

Die Erfindung schließt die technische Lehre ein, dass die Querschneidvorrichtung für eine Wickelmaschine sich quer zur Transportrichtung einer Warenbahn erstreckt und ausgebildet ist, für den Schneidvorgang der Warenbahn von einer Ruheposition zumindest teilweise in die Ebene der Warenbahn hinein zu verschwenken. Dabei umfasst die Querschneidvorrichtung zumindest ein Messer, das entlang einer Führung orthogonal zur Transportrichtung der Warenbahn verfahrbar angeordnet ist. Das Messer wirkt beim Schneidvorgang mit einem Niederhalter kontinuierlich zusammen. Bildet sich zwischen dem Messer und dem Niederhalter ein Materialstau, dann ist erfindungsgemäß der Niederhalter ausgebildet, von einer Betriebsposition in eine Ausweichposition zu verfahren. Damit wird ein Abreißen des Niederhalters vermieden, was zu einer weiteren Beschädigung der Querschneidvorrichtung führen kann.The invention includes the technical teaching that the cross-cutting device for a winding machine extends transversely to the transport direction of a web and is designed to pivot for the cutting process of the web from a rest position at least partially in the plane of the web. In this case, the cross-cutting device comprises at least one knife which is arranged to be movable along a guide orthogonal to the transport direction of the web. The knife interacts continuously with a hold-down during the cutting process. If a jam of material forms between the knife and the hold-down device, the hold-down device according to the invention is designed to move from an operating position into an evasive position. This tearing of the blank holder is avoided, which can lead to further damage to the cross-cutting device.

Mit weiterem Vorteil ist das Messer als Rotationsmesser ausgebildet und der Niederhalter um den Drehpunkt des Messers verschwenkbar angeordnet. Bei einem Materialstau weicht der Niederhalter durch die Schwenkbewegung den auftretenden Kräften aufgrund der Verfahrbewegung quer zur Warenbahn aus.With further advantage, the knife is designed as a rotary blade and the hold-down about the pivot point of the knife pivotally mounted. In the event of a material jam, the hold-down device deviates from the occurring forces due to the movement of movement transversely to the material web due to the pivoting movement.

Vorzugsweise ist der Niederhalter an einem Flansch angeordnet, der mit einer parallel zum Messer angeordneten Halterung zusammenwirkt. Die Schwenkbewegung des Niederhalters ist damit unabhängig von der Rotation des Messers, so dass dieses den Materialstau auch ohne den Niederhalter freischneiden kann, bzw. die Warenbahn ungeschnitten über das Messer geführt wird, falls das Messer stumpf ist. Ein weiterer Aufstau des Materials wird damit vermieden.Preferably, the hold-down is arranged on a flange which cooperates with a holder arranged parallel to the knife. The pivoting movement of the blank holder is thus independent of the rotation of the blade so that it can cut free the jam material even without the hold-down, or uncut the web over the knife is guided if the knife is dull. Another accumulation of the material is thus avoided.

Die Halterung weist eine kreisbogenförmige Nut auf, in die ein Führungselement des Flansches eingreift. Damit wird die Schwenkbewegung des Flansches und damit des Niederhalters begrenzt. Dadurch, dass der Flansch eine federbelastete Rastvorrichtung aufweist, die den Flansch mit dem Niederhalter in Betriebsposition hält, kann bei Schwankungen in der Materialdicke und Materialfestigkeit ein zu frühes Verschwenken des Niederhalters in die Ausweichposition vermieden werden.The holder has an arcuate groove in which a guide element of the flange engages. Thus, the pivotal movement of the flange and thus the hold-down is limited. Characterized in that the flange has a spring-loaded latching device which holds the flange with the hold-down in the operating position, a too early pivoting of the hold-down in the avoidance position can be avoided with variations in the material thickness and material strength.

Vorzugsweise ist die Federbelastung der Rastvorrichtung einstellbar, so dass eine Anpassung der Schwenkbewegung an unterschiedliche Warenbahnen (Dicke, Material, etc.) möglich ist.Preferably, the spring load of the locking device is adjustable, so that an adaptation of the pivoting movement to different webs (thickness, material, etc.) is possible.

Erst bei einem Überschreiten der Federkräfte wird die Rastvorrichtung ausgelöst und der Flansch mit dem Niederhalter in die Ausweichposition verschwenkt.Only when the spring forces are exceeded, the locking device is triggered and the flange pivoted with the hold-down in the evasive position.

Vorzugsweise kann der Flansch mit dem Niederhalter manuell oder automatisch von der Ausweichposition in die Betriebsposition verschwenkbar ausgebildet sein. Sowohl die automatische Verschwenkung wie auch die manuelle Verschwenkung von der Ausweichposition in die Betriebsposition mittels eines Hebels verhindert eine Verletzung des Bedieners an der Messerklinge.Preferably, the flange with the hold-down can be designed to be pivotable manually or automatically from the avoidance position into the operating position. Both the automatic pivoting as well as the manual pivoting of the avoidance position into the operating position by means of a lever prevents injury to the operator of the knife blade.

Eine weitere Automatisierung kann mittels eines Sensors erreicht werden, der die Position des Niederhalters und/oder des Flansches auf einem Teilumfang der Halterung feststellt. Damit kann der Bediener gewarnt werden und/oder ggfs. die Maschine abgestellt werden.Further automation can be achieved by means of a sensor which detects the position of the blank holder and / or the flange on a partial circumference of the holder. Thus, the operator can be warned and / or if necessary. The machine will be turned off.

Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung anhand der Figuren näher dargestellt. Es zeigen:

Figur 1:
eine beispielhafte Wickelmaschine mit einer Querschneidvorrichtung;
Figur 2:
eine erste Detailansicht der erfindungsgemäßen Querschneideinrichtung;
Figur 3:
eine vergrößerte Detailansicht von Figur 2;
Figur 4:
eine weitere Detailansicht der erfindungsgemäßen Querschneideinrichtung;
Figur 5:
eine weitere Detailansicht der erfindungsgemäßen Querschneideinrichtung;
Figur 6:
eine Detailansicht auf die Rastvorrichtung.
Further, measures improving the invention will be described in more detail below together with the description of a preferred embodiment of the invention with reference to FIGS. Show it:
FIG. 1:
an exemplary winding machine with a cross-cutting device;
FIG. 2:
a first detailed view of the cross-cutting device according to the invention;
FIG. 3:
an enlarged detail view of FIG. 2 ;
FIG. 4:
a further detail view of the cross-cutting device according to the invention;
FIG. 5:
a further detail view of the cross-cutting device according to the invention;
FIG. 6:
a detailed view of the locking device.

Figur 1 zeigt eine beispielhafte Wickelmaschine 1 mit der erfindungsgemäßen Querschneideinrichtung 10. Die Wickelmaschine 1 steht mit dem Einlaufbereich 2 am Ende einer Anlage, auf der Fasern zu einem Vlies oder Nonwovensprodukt hergestellt werden. Eine nicht weiter bezeichnete Warenbahn läuft über den Einlaufbereich 2 in die Wickelmaschine 1 und wird auf einer Wickelwelle 4 zu einem nicht dargestellten Wickel aufgewickelt. Eine Wickelwelle 4 ist in Reserveposition dargestellt. Oberhalb einer Kontaktwalze 5, die den Wickelvorgang unterstützt, ist eine Querschneidvorrichtung 10 dargestellt, die im Detail in den nachfolgenden Figuren beschrieben wird. Über den Abführbereich 3 wird der fertige Wickel nach der Trennung von der verbleibenden Warenbahn zu einem Zwischen- oder Endlager transportiert. FIG. 1 shows an exemplary winding machine 1 with the cross cutting device 10 according to the invention. The winding machine 1 is connected to the inlet region 2 at the end of a system on which fibers are produced into a nonwoven or Nonwovensprodukt. A non-designated web runs over the inlet region 2 in the winding machine 1 and is wound on a winding shaft 4 to a winding, not shown. A winding shaft 4 is shown in reserve position. Above a contact roller 5, which supports the winding process, a transverse cutting device 10 is shown, which will be described in detail in the following figures. About the discharge area 3 of the finished roll after the separation of the remaining web transported to an intermediate or final storage.

Die Figuren 2 und 3 zeigen in einer vergrößerten Ansicht die Querschneidvorrichtung 10, die sich quer über die Kontaktwalze 5 erstreckt und mittels drehbar gelagerter Flansche 11 um die Drehachse der Kontaktwalze 5 in die gespannte Warenbahn einschwenkbar (Pfeil) ist. In dieser Darstellung befindet sich die Querschneidvorrichtung 10 in Warteposition, bis der Wickel fertig aufgewickelt ist. Nach einer vorgegebenen Wickellänge verschwenkt die Querschneidvorrichtung 10 in die Ebene der Warenbahn, wobei sich das Messer 13 seitlich außerhalb der Warenbahn befindet und unter der Ebene der Warenbahn befindet. Mit der Schneidbewegung fährt das Messer 13 seitlich in die Warenbahn und zertrennt diese. Ein keilförmiger Niederhalter 14 befindet sich dann oberhalb der Ebene der Warenbahn, so dass sich diese zwischen dem Messer 13 und dem Niederhalter 14 befindet und durch die Rotation und Querbewegung des Messers über die Warenbahn zertrennt wird. Innerhalb der Querschneidvorrichtung 10 ist eine lineare Führung 12 angeordnet, entlang der das Messer 13 quer über die Warenbahn angetrieben geführt wird und die Warenbahn zerteilt. Das Messer 13 ist in einem Winkel von 30° bis 60° zur Längsachse der Kontaktwalze 5 angeordnet, wobei die Größe des Winkels unter anderem von der Wickelgeschwindigkeit abhängt, um einen möglichst rechtwinkligen Schnitt zur Wickelrichtung zu erzielen.The Figures 2 and 3 show in an enlarged view the cross-cutting device 10, which extends transversely across the contact roller 5 and by means of rotatably mounted flanges 11 about the axis of rotation of the contact roller 5 in the tensioned web pivots (arrow). In this illustration, the cross-cutting device 10 is in the waiting position until the winding is finished wound. After a predetermined winding length, the cross-cutting device 10 pivots in the plane of the web, wherein the knife 13 is located laterally outside of the web and is below the level of the web. With the cutting movement, the knife 13 moves laterally into the web and breaks them. A wedge-shaped hold-down 14 is then above the plane of the web, so that it is between the knife 13 and the hold-down 14 and is divided by the rotation and transverse movement of the knife over the web. Within the transverse cutting device 10, a linear guide 12 is arranged, along which the knife 13 is guided across the web driven and divides the web. The knife 13 is arranged at an angle of 30 ° to 60 ° to the longitudinal axis of the contact roller 5, wherein the size of the angle depends inter alia on the winding speed in order to achieve a possible rectangular section to the winding direction.

Figur 4 zeigt eine vergrößerte Darstellung auf einen Teil der Querschneidevorrichtung 10, bei der die Verkleidung 15 der Vorder- und Rückseite entfernt wurde. Das Messer 13 ist als Rotationsmesser ausgebildet, das mittels motorischem oder pneumatischem Antrieb 17 in Rotation versetzt wird. Das Messer 13 ist drehbar an einem Gestell 16 gelagert, an dem auch der Antrieb 17 drehfest angeordnet ist. Zwischen dem Messer 13 und dem Antrieb 17 ist eine Halterung 18 für den Niederhalter 14 angeordnet, der zumindest teilweise um diese Halterung 18 verschwenkbar ist. Hierzu ist der Niederhalter 14 an einem Flansch 20 befestigt, der mit einem hier nicht erkennbaren Führungselement 21 in einer Nut 19 der Halterung 18 auf einer Kreisbahn geführt wird. In Betriebsposition, wenn das Messer 13 die Warenbahn zerschneidet, befindet sich der Niederhalter 14 in dieser oberen Position, wobei sich der Flansch 20 mit dem Führungselement 21 im oberen Anschlag der Nut 19 befindet. Der Niederhalter 14 wird mit dem Flansch 20 mittels nicht dargestellter Federelemente in dieser Position gehalten. Die Federelemente sind einstellbar ausgebildet, um die Rastkräfte für diese Position variieren zu können. Nach dem Stand der Technik führte ein stumpfes Messer 13 zu einem Materialstau, wodurch es oft zu einem Abreißen des Niederhalters 14 kam. FIG. 4 shows an enlarged view of a portion of the cross cutting device 10, in which the panel 15 of the front and back has been removed. The knife 13 is designed as a rotary knife, which is set by means of motor or pneumatic drive 17 in rotation. The knife 13 is rotatably mounted on a frame 16, on which also the drive 17 is arranged rotationally fixed. Between the knife 13 and the drive 17 is a holder 18 for the Hold-down 14 is arranged, which is at least partially pivotable about this holder 18. For this purpose, the hold-down 14 is attached to a flange 20 which is guided with a guide element 21, not visible here, in a groove 19 of the holder 18 on a circular path. In operating position, when the knife 13 cuts the web, the hold-down 14 is in this upper position, wherein the flange 20 is located with the guide member 21 in the upper stop of the groove 19. The hold-down 14 is held with the flange 20 by means not shown spring elements in this position. The spring elements are designed to be adjustable in order to be able to vary the latching forces for this position. According to the prior art, a blunt knife 13 led to a jam, which often led to a tearing of the blank holder 14.

Erfindungsgemäß kann bei einem Materialstau der Niederhalter 14 mit dem Flansch 20 in eine untere Ausweichposition (Figur 5) verschwenkt werden, so dass die Querschneidvorrichtung 10 nicht beschädigt wird. Dabei wird die Kraft der Federelemente überwunden und der Flansch 20 mit dem Niederhalter 14 verfährt entlang der kreisrund angeordneten Nut 19 in die untere Ausweichposition.According to the invention, in the case of a material jam, the hold-down 14 with the flange 20 can be moved into a lower deflection position (FIG. FIG. 5 ) are pivoted, so that the cross-cutting device 10 is not damaged. The force of the spring elements is overcome and the flange 20 moves with the hold-down 14 along the circular groove 19 in the lower alternative position.

Nachdem das aufgestaute Material zwischen Rotationsmesser 13 und Niederhalter 14 entfernt wurde, kann der Flansch 20 mit dem Niederhalter 14 mittels Griff 23 und Hebel 22 manuell in die Betriebsposition (Figur 4) verschwenkt werden. Griff 23 und Hebel 22 sind nicht fest montiert, sondern können in der Ausweichposition in eine Bohrung des Flansches eingesteckt werden. Die Nut 19 ist so ausgebildet, dass der Niederhalter 14 mit dem Flansch 20 um etwa 90° aus dem Eingriff mit dem Messer 13 verschwenkt werden kann, was in dieser Ansicht im Uhrzeigersinn in Materiallaufrichtung erfolgt.After the accumulated material between the rotary blade 13 and hold-down 14 has been removed, the flange 20 with the hold-down 14 by means of handle 23 and lever 22 manually in the operating position ( FIG. 4 ) are pivoted. Handle 23 and lever 22 are not fixedly mounted, but can be inserted in the avoidance position in a bore of the flange. The groove 19 is formed so that the hold-down 14 can be pivoted to the flange 20 by about 90 ° from engagement with the knife 13, which takes place in this view in the clockwise direction in the material direction.

Vorzugsweise kann die Position des Niederhalters 14 oder des Flansches 20 mittels Sensor überwacht werden, so dass bei einem Verschwenken beider Bauteile ein Signal an die Steuerung der Wickelmaschine 1 übertragen wird. Dies kann ein Warnsignal für den Bediener auslösen oder die Wickelmaschine automatisch außer Betrieb setzen. Statt der manuellen Rückstellung von der Ausweichposition in die Betriebsposition mittels Griff 23 und Hebel 22 kann der Flansch 20 mit dem Niederhalter 14 auch automatisch zurückgestellt werden. Dazu ist vorgesehen, dass das Messer 10 stillsteht und das Gestell 16 entlang der Führung 12 wieder in die Warteposition am Flansch 11 außerhalb der Warenbahn verfahren wurde.Preferably, the position of the blank holder 14 or the flange 20 can be monitored by means of a sensor, so that upon pivoting of both components, a signal is transmitted to the control of the winding machine 1. This can trigger a warning signal to the operator or automatically disable the winding machine. Instead of the manual reset of the avoidance position in the operating position by means of handle 23 and lever 22, the flange 20 with the hold-down 14 can also be reset automatically. For this purpose, it is provided that the blade 10 is stationary and the frame 16 has been moved along the guide 12 back to the waiting position on the flange 11 outside the web.

Figur 6 zeigt eine Schnittdarstellung durch die Querschneidvorrichtung, bei der das Messer 13 parallel zur Halterung 18 angeordnet ist. In dieser Darstellung ist das Führungselement 21 zu erkennen, dass den Flansch 20 entlang der Nut führt. Oberhalb des Flansches 20 ist der Niederhalter 14 zu erkennen, der mit dem Messer 13 in dieser Darstellung einen kleinen vertikalen Spalt ausbildet. Am Flansch 20 ist ein beispielhaftes Rastelement 24 ausgebildet, das als federbelasteter Stift mit kegelförmiger oder gerundeter Spitze mit einer Vertiefung 25 zusammen wirken kann. Das Rastelement 24 kann nach einer durch die Federkraft vordefinierten Losbrechkraft aus der Vertiefung 25 gedrückt werden, so dass der Flansch 20 mit dem Niederhalter 14 entlang der Nut 19 in die Ausweichposition verschwenken kann. Alternative Rastvorrichtungen sind im Rahmen der Erfindung selbstverständlich möglich. FIG. 6 shows a sectional view through the cross-cutting device, in which the knife 13 is arranged parallel to the holder 18. In this illustration, the guide member 21 can be seen that the flange 20 leads along the groove. Above the flange 20, the hold-down 14 can be seen, which forms a small vertical gap with the knife 13 in this illustration. On the flange 20, an exemplary locking element 24 is formed, which can act as a spring-loaded pin with a conical or rounded tip with a recess 25 together. The latching element 24 can be pressed out of the recess 25 after a breakaway force predefined by the spring force, so that the flange 20 can pivot with the hold-down device 14 along the groove 19 into the avoidance position. Alternative locking devices are of course possible within the scope of the invention.

Bezugszeichenreference numeral

11
Wickelmaschinewinder
22
Einlaufbereichintake area
33
Abführbereichdischarge area
44
Wickelwellewinding shaft
55
Kontaktwalzecontact roller
1010
QuerschneidvorrichtungCross-cutting device
1111
Flanschflange
1212
Führungguide
1313
Messerknife
1414
Niederhalterdown device
1515
Verkleidungpaneling
1616
Gestellframe
1717
Antriebdrive
1818
Halterungholder
1919
Nutgroove
2020
Flanschflange
2121
Führungselementguide element
2222
Hebellever
2323
GriffHandle
2424
Rastelementlocking element
2525
Vertiefungdeepening

Claims (10)

Querschneidvorrichtung (10) für eine Wickelmaschine (1), die sich quer zur Transportrichtung einer Warenbahn erstreckt und ausgebildet ist, für den Schneidvorgang der Warenbahn von einer Ruheposition zumindest teilweise in die Ebene der Warenbahn hinein zu verschwenken, umfassen zumindest ein Messer (13), das entlang einer Führung (12) orthogonal zur Transportrichtung der Warenbahn verfahrbar angeordnet ist, mit einem Niederhalter (14), der beim Schneidvorgang kontinuierlich mit dem Messer (13) zusammenwirkt, wobei der Niederhalter (14) ausgebildet ist, von einer Betriebsposition in eine Ausweichposition zu verfahren.Cross-cutting device (10) for a winding machine (1) which extends transversely to the transport direction of a web and is designed to pivot for the cutting process of the web from a rest position at least partially in the plane of the web into at least comprise a knife (13), which is movably arranged along a guide (12) orthogonal to the transport direction of the web, with a hold-down (14), which cooperates continuously with the knife (13) during the cutting process, wherein the hold-down (14) is formed, from an operating position to an evasive position to proceed. Querschneidvorrichtung (10) nach Anspruch 1, dadurch gekennzeichnet, dass das Messer (13) als Rotationsmesser ausgebildet ist und der Niederhalter (14) um den Drehpunkt des Messers (13) verschwenkbar angeordnet ist.Cross-cutting device (10) according to claim 1, characterized in that the knife (13) is designed as a rotary blade and the hold-down device (14) about the pivot point of the blade (13) is arranged pivotably. Querschneidvorrichtung (10) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Niederhalter (14) an einem Flansch (20) angeordnet ist, der mit einer parallel zum Messer (13) angeordneten Halterung (18) zusammenwirkt.Cross-cutting device (10) according to claim 1 or 2, characterized in that the hold-down device (14) on a flange (20) is arranged, which cooperates with a parallel to the knife (13) arranged holder (18). Querschneidvorrichtung (10) nach Anspruch 3, dadurch gekennzeichnet, dass die Halterung (18) eine kreisbogenförmige Nut (19) aufweist, in die ein Führungselement (21) des Flansches (20) eingreift.Cross-cutting device (10) according to claim 3, characterized in that the holder (18) has a circular arc-shaped groove (19) into which a guide element (21) of the flange (20) engages. Querschneidvorrichtung (10) nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass der Flansch (20) eine federbelastete Rastvorrichtung aufweist, die den Flansch (20) mit dem Niederhalter (14) in Betriebsposition hält.Cross-cutting device (10) according to one of claims 2 to 4, characterized in that the flange (20) has a spring-loaded Detent device which holds the flange (20) with the hold-down (14) in the operating position. Querschneidvorrichtung (10) nach Anspruch 5, dadurch gekennzeichnet, dass die Federbelastung der Rastvorrichtung einstellbar istCross-cutting device (10) according to claim 5, characterized in that the spring load of the locking device is adjustable Querschneidvorrichtung (10) nach einem der vorgenannten Ansprüche 5 oder 6, dadurch gekennzeichnet, dass bei Überschreiten der Federkräfte die Rastvorrichtung ausgelöst wird und der Flansch (20) mit dem Niederhalter (14) in die Ausweichposition verschwenkt.Cross-cutting device (10) according to any one of the preceding claims 5 or 6, characterized in that when the spring forces are exceeded, the locking device is triggered and the flange (20) pivoted with the hold-down (14) in the avoidance position. Querschneidvorrichtung (10) nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass der Flansch (20) mit dem Niederhalter (14) manuell oder automatisch von der Ausweichposition in die Betriebsposition verschwenkbar ist.Cross-cutting device (10) according to any one of the preceding claims, characterized in that the flange (20) with the hold-down device (14) is manually or automatically pivotable from the avoidance position to the operating position. Querschneidvorrichtung (10) nach Anspruch 8, dadurch gekennzeichnet, dass die manuelle Verschwenkung von der Ausweichposition in die Betriebsposition mittels eines Hebels unterstützt wird.Cross-cutting device (10) according to claim 8, characterized in that the manual pivoting is supported by the avoidance position to the operating position by means of a lever. Querschneidvorrichtung (10) nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass mittels eines Sensors die Position des Niederhalters (14) und/oder des Flansches (20) auf einem Teilumfang der Halterung (18) feststellbar ist.Cross-cutting device (10) according to any one of the preceding claims, characterized in that by means of a sensor, the position of the blank holder (14) and / or the flange (20) on a partial circumference of the holder (18) is detectable.
EP19171017.7A 2018-05-18 2019-04-25 Transverse cutting device for a coiling machine Active EP3569373B1 (en)

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DE102018112034.6A DE102018112034A1 (en) 2018-05-18 2018-05-18 Cross cutting device for a winding machine

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EP (1) EP3569373B1 (en)
CN (1) CN110498274B (en)
DE (1) DE102018112034A1 (en)
ES (1) ES2836893T3 (en)
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63182898U (en) * 1987-05-15 1988-11-25
US20140326115A1 (en) * 2013-05-03 2014-11-06 The Procter & Gamble Company Methods for cutting materials
EP3124188A1 (en) * 2015-07-30 2017-02-01 Magna Steyr Fuel Systems GesmbH Cutting device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553328A (en) * 1983-09-19 1985-11-19 Eastman Machine Company Guided lifting apparatus
WO2014179522A1 (en) * 2013-05-03 2014-11-06 The Procter & Gamble Company Cutting apparatus for fibers and method of cutting
CN204662149U (en) * 2015-03-25 2015-09-23 浙江龙旺纺织涂层有限公司 Cloth cutting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63182898U (en) * 1987-05-15 1988-11-25
US20140326115A1 (en) * 2013-05-03 2014-11-06 The Procter & Gamble Company Methods for cutting materials
EP3124188A1 (en) * 2015-07-30 2017-02-01 Magna Steyr Fuel Systems GesmbH Cutting device

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CN110498274B (en) 2021-03-05
PL3569373T3 (en) 2021-04-06
EP3569373B1 (en) 2020-11-04
DE102018112034A1 (en) 2019-11-21
CN110498274A (en) 2019-11-26
PT3569373T (en) 2020-12-15

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