EP3728090B1 - Reversing winder and method for operating a reversing winder - Google Patents

Reversing winder and method for operating a reversing winder Download PDF

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Publication number
EP3728090B1
EP3728090B1 EP18825668.9A EP18825668A EP3728090B1 EP 3728090 B1 EP3728090 B1 EP 3728090B1 EP 18825668 A EP18825668 A EP 18825668A EP 3728090 B1 EP3728090 B1 EP 3728090B1
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EP
European Patent Office
Prior art keywords
transmitter
receiver
winding shaft
winding
winder
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.)
Active
Application number
EP18825668.9A
Other languages
German (de)
French (fr)
Other versions
EP3728090A1 (en
Inventor
Viktor SPETTER
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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Publication of EP3728090A1 publication Critical patent/EP3728090A1/en
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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
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing 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
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/16—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/30—Supports; Subassemblies; Mountings thereof
    • B65H2402/35—Supports; Subassemblies; Mountings thereof rotating around an axis
    • B65H2402/352—Turrets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2407/00—Means not provided for in groups B65H2220/00 – B65H2406/00 specially adapted for particular purposes
    • B65H2407/10—Safety means, e.g. for preventing injuries or illegal operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/231—Turret winders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/511—Presence of user
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors

Definitions

  • the invention relates to a turret winder for sequentially winding a web onto a plurality of rolls according to the preamble of claim 1 and a method for operating a turret winder according to the preamble of claim 8.
  • turret winders With turret winders, it is possible to wind a web, in particular a printing material web that has been printed in a printing machine, onto a plurality of individual rolls.
  • turret winders have been used for some time, in which a first winding shaft and at least one second winding shaft are provided.
  • Each winding shaft is arranged with its ends in a respective rotation device and is preferably rotatably mounted there.
  • At least one winding sleeve is usually arranged in a rotationally fixed manner on a winding shaft, on which the web can be wound up or is wound up and thus forms a winding.
  • At least one pressure roller is provided.
  • the winding hardness is determined by the amount of air trapped between the individual layers of the winding.
  • a pressure roller is usually provided, which can be moved relative to all the rolls.
  • a movement device arranged on at least one rotation device is provided, in which the pressure roller is mounted with one of its ends.
  • the object of the present invention is therefore to meet the aforementioned requirements.
  • the element arranged on the at least one movement device is preferably a flat element, ie its extension in two mutually orthogonal spatial directions is significantly greater than the extension in the third spatial direction orthogonal to the other two spatial directions.
  • this element is designed in the form of a plate, lattice or net, in which case the important thing here is the function and not the physical configuration. Other, similar configurations that fulfill the same function are also conceivable here.
  • this element can be equipped with a supporting frame or supporting slats for supporting the plate, lattice or net structure.
  • the movement device can be a linear guide that extends along an imaginary line that connects the first winding shaft and the second winding shaft to one another.
  • the element can also be fastened to the carriage on which the pressure roller is arranged.
  • a further attachment of one of the rotation devices is not necessary, but advantageous.
  • This additional attachment can also include a carriage that runs on linear guides, or from a pivot bearing, as in the DE 10 2014 214 335 A1 is shown, in which case the element must have a telescopic displacement possibility.
  • the print JP 2004 269102 A shows such a turret winder for sequentially winding a web onto a plurality of rolls, in which a first winding shaft and at least one second winding shaft are provided, the first and second winding shafts being supported at their ends by two rotary devices. Furthermore, the turret winder includes a pressure roller which can be moved between the first winding shaft and the second winding shaft.
  • the pressure roller is fastened in one end of a swivel arm, with the second end of the swivel arm being pivotably mounted in at least one rotation device.
  • the at least one swivel arm can be driven by means of a drive, preferably by means of a Pneumatic cylinder, which is able to provide a constant force.
  • At least one electromagnetic radiation arranged.
  • Transmitters and/or receivers can also be arranged on components connected to the turntable or turntables, for example on traverses or on the aforementioned pivot bearing or pivot bearings.
  • the electromagnetic radiation can be used optionally, that is to say that it can be switched on and off. Switching off this radiation enables the operator to intervene in the turret winder without unintentionally interrupting the electromagnetic radiation. This is possible if the nip described above is far enough away from the area where the operator is working.
  • the turret winder can react, for example, by reducing the contact force of the pressure roller. This can be achieved, for example, by depressurizing the pneumatic cylinder.
  • the winding process can be stopped, ie the rotating winding can be stopped.
  • the interaction of a fixed element that is movable relative to the roll due to the arrangement on the movement device and the monitoring of an area or a room by means of electromagnetic radiation, with the monitoring being optional, can ensure that the operator is not exposed to any risk of injury, but also by switching off the electromagnetic radiation as required, no disturbances can occur when changing the roll.
  • the transmitter is preferably a light source that emits laser light in particular.
  • Light is not only understood to mean that electromagnetic radiation that is visible to the human eye. Nevertheless, this is an advantage so that an operator can also see the danger area can recognize.
  • the use of laser light is advantageous because it is very well focused.
  • the receiver is a component that converts the electromagnetic radiation into electrical signals, based on the photo effect.
  • the transmitter and/or the receiver have an elongated shape.
  • Both the transmitter and the receiver are preferably elongated, so that a plurality of preferably parallel beams of electromagnetic radiation can be generated.
  • the term "elongated shape" can mean in particular that one or more light transmitters are arranged along a line. Such an arrangement can then also be provided for the recipient. One can therefore speak of a light grid being set up.
  • the element in the form of a plate, grid or net is on one side and the transmitter and/or receiver on the other side of an imaginary plane spanned by the first and the second winding shaft.
  • the transmitter and/or receiver are above and the plate-, grid- or net-shaped element is below the winding shafts, or vice versa, it being assumed that the plane spanned by the winding shafts is arranged horizontally.
  • the mechanical protection is on one side of the winding shafts and the electromagnetic protection is on the other side of the winding shafts.
  • a pivot bearing is provided as the movement device, with the pivot bearing and the transmitter and/or the receiver lying on a plane which is orthogonal to the plane spanned by the first and the second winding shaft and parallel to the first and the second winding shaft runs.
  • the transmitter is arranged on one of the rotation devices and the receiver on the other rotation device, so that both rotate with the rotation of the rotation device and therefore remain in a fixed position relative to the winding shafts.
  • At least one further transmitter for transmitting and/or receiver for receiving electromagnetic radiation is arranged on a machine frame in which the rotation devices are rotatably mounted.
  • Such a further transmitter and/or receiver can be used to detect the presence of a sufficiently large roll. It is then possible to switch off the first transmitter and/or receiver. If a sufficiently large coil has been wound but has not yet been removed from the turret winder, it serves as protection for an operator, so that protection by the first transmitter and/or receiver is not required at this point.
  • a roll gap is covered with a plate-, grid- or net-shaped element arranged on the at least one swivel arm and with at least one transmitter for transmitting and/or receiver arranged on at least one of the rotation devices Receiving electromagnetic radiation optionally the nip is additionally monitored.
  • first winding shaft 102 and the second winding shaft 103 can be seen, which are each rotatably mounted in a rotating element designed as a rotary disk 104 and can optionally be driven in rotation. Suitable rotary drives, preferably electric motors, can be available for this purpose.
  • Each of the winding shafts 102 and 103 can each be fitted with one or more winding sleeves 105, 106 onto which the web can be wound undivided or with longitudinal sections, so that windings can arise from which the winding 107 is currently being formed.
  • the roll 107 is formed by feeding in a web 108 which can be guided or is guided at least over a roller.
  • This roller is in the embodiment figure 1 designed as a contact roller 109, ie it lays the web 108 directly onto the outer circumference of the roll 107.
  • the contact roller can be displaced along linear guides 110 which can be arranged on the machine frame 111 .
  • any other mechanical elements can also be provided that fulfill the function mentioned, namely the movement of the contact roller relative to the roll.
  • the directions of rotation of the reel 107 and the contact roller 109 are indicated by the W and K arrows. However, the directions of rotation can also be reversed, so that alternatively the outside of the roll can also form the inside.
  • the guide rollers 110 and 111 which are used to guide the web 108 when the turntable 104 is rotated for the purpose of changing the lap, can also be rotatably mounted in the turntable 104.
  • a pressure roller 112 is provided, which is mounted rotatably and movably relative to the roll.
  • the direction of rotation of the pressure roller which runs in the opposite direction to the direction of rotation W of the roll, is indicated by the arrow A.
  • the pressure roller 112 is rotatably mounted on one end of a swivel arm 113 in the present embodiment.
  • the second end of the swivel arm 113 is mounted in the turntable 104 by means of a swivel bearing 114 , the pressure roller being movable relative to the turntable 104 and thus relative to the roll 107 .
  • a drive is provided which, in the present exemplary embodiment, is designed as a piston lifting cylinder 114 which can be operated, for example, with compressed air.
  • the piston of the piston lifting cylinder is by means of a pivot bearing rotatably attached to the swivel arm 113, while the cylinder is rotatably arranged on the turntable 104, also by means of a rotary bearing.
  • a guard 115 is also arranged on the swivel arm 113 and extends parallel to the pressure roller 112 .
  • This protection can include a planar element, in particular a net, a grid, a plate or the like, whereby it can be prevented that an object or even a body part of a person penetrates into the roller gap 120 created by the roll 107 and the pressure roller 112 .
  • the turntable 104 carries a further protective device, which is designed as a transmitter 116 and/or receiver for electro-optical radiation.
  • the transmitter 116 provides electromagnetic radiation which can be received by a receiver, the receiver preferably being used to measure the intensity of the received radiation.
  • the receiver can be arranged on the second turntable 104', which is not shown. However, it is also conceivable that only one or more reflectors are arranged on the second turntable 104 ⁇ , so that the electromagnetic radiation emitted by the transmitter is reflected back. In this case, a receiver can be arranged directly next to, above and/or below the transmitter 116 on the turntable 104, which reduces the effort involved in wiring the transmitter and receiver.
  • the receiver registers a reduced intensity of the electromagnetic radiation.
  • This information is evaluated and further processed by a control device (not shown). This further processing can manifest itself, for example, in the fact that the winding process in the turret winder is stopped.
  • the pressure roller 112 can be removed from the winding 107 so that the danger point of the winding gap is no longer present. For this he can the pressure applied to the piston-cylinder unit can be removed, ie the cylinder is depressurized or switched in the opposite direction. An object that has entered the nip is no longer squeezed in the nip or transported further in it.
  • FIG. 1 it is shown that the reel 107 is being wound while the sleeve 106 has already been pushed onto the winding shaft 103 for the following reel change.
  • the loading and/or the insertion of the winding shaft 103 usually takes place at least in part through manual intervention by the operator.
  • An operator is usually standing on the work platform 117 while the new core 106 is being prepared, so that there is a source of danger for this operator with the ongoing winding process.
  • Various safety scenarios and safety features are provided by the present invention in various stages of the ongoing winding process or the previous or subsequent change of core and winding, which are explained in more detail below with reference to the figures.
  • the transmitter and/or receiver can remain or become switched off. This can even be seen as an advantage, as it can happen that the operator breaks through the light beam during the preparation of the new rolls.
  • the transmitter is switched on, for example, the ongoing wrapping process would be stopped, although there was no acute danger to the operator. Provision can be made for the transmitter and/or receiver to be switched on when the roll 107 has exceeded a limit diameter in the course of the increase in diameter.
  • the control device can monitor the current roll diameter, for example by evaluating the measuring sensor, and/or calculate it on the basis of the running length of the web that has already been wound up and the thickness of the web. If the limit diameter is then reached, the control device switches on the transmitter and/or receiver. But it can also be provided that the Completion of the preparatory work in relation to the new core 106 must be confirmed by the operator. For this purpose, the completion of the preparation can be communicated to the control device by pressing a key or a button. If the limit diameter has been exceeded but this confirmation has not yet taken place, provision can be made for the winding process to be stopped for safety reasons without the transmitter and/or receiver being switched on. This procedure can be advantageous in connection with the following situation.
  • a sensor 121 (in figure 1 shown) may be provided, which is arranged, for example, in the machine frame 122 of the turret winder. This sensor 121 can be what is known as a one-way light barrier. Is now as it is in the figure 3 is shown, a roll in the detection range of the sensor, the control device is provided with this information.
  • the control device then suspends the activation of the transmitter 116 and/or the receiver, even if the new roll has exceeded the limit diameter. Only when the sensor 121 detects that the detection area is free again and the control device receives corresponding information does the control device lift the suspension of the activation of the transmitter 116 and/or the receiver again.
  • the figure 2 now shows a situation after a lap change and a very advanced winding process.
  • the winding shaft 103 With the winding sleeve 106, which together form the new winding 123.
  • This arrangement is based on the in the figure 1
  • the arrangement shown is achieved in that the turntable is rotated in the direction of arrow D, preferably through an angle of 180°, so that the winding shaft 102 changes the position of the winding shaft 103 takes and vice versa. During this process, the winding process continues, with the pressure roller 112 still being in contact with the roll 107 .
  • the web 108 is also guided by the guide roller 110 in order to prevent the web 108 from touching other components of the turret winder, such as the pressure roller 112.
  • the winding core 106 comes into contact in touching contact with web 108 .
  • the web 108 is cut by a severing device (not shown), so that the newly formed beginning of the web is carried along by adhesive forces acting between the new core 106 and the web 108 .
  • adhesive forces can be provided, for example, by double-sided adhesive strips, by applied adhesive or by electrostatic charging.
  • the pivoting arm 113 pivots towards the new roll 123, so that the upper web layer is also pressed on this new roll.
  • the swivel arm 113 is now in a suspended position, in which the bearing of the swivel arm 113 is arranged above the bearing of the pressure roller 112 in the swivel arm 113 .
  • an operator reaches into the winder above the mandrel 103, so that it is sufficient if only the protection 115 shields the operator's space from the new winder 123.
  • the transmitter 116 is switched off. This in turn offers advantages, since otherwise, for example, falling or hanging objects, such as the free end of the web, could get into the effective range of the transmitter and thus cause the winding device to stop unjustifiably.
  • figure 2 now shows the winding shaft 102, which is already equipped with a new, empty winding tube 105.
  • the figure 3 shows the situation after another lap change, which is carried out in the same way as the lap change, which is based on the transition from the figure 1 to the figure 2 was explained.
  • the winding 123 is here in a position in which it is removed by the operating personnel Winding device can be removed. However, this winding 123 covered in the figure 1 sensor 121 shown. This means that this sensor detects the presence of a roll and signals this to the control device. With the control device, the transmitter 116 is now deactivated or the deactivation is maintained as long as the roll is in the recognition range of the roll 123 . Only when the roll has been removed is this recognized by the sensor 121, so that the transmitter 116 is activated.
  • the transmitter 116 is active when the operator equips the winding shaft with a new, empty winding core 106 .

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)

Description

Die Erfindung betrifft einen Wendewickler zum aufeinanderfolgenden Wickeln einer Bahn auf mehrere Rollen nach dem Oberbegriff des Anspruchs 1 sowie ein Verfahren zum Betreiben eines Wendewicklers nach dem Oberbegriff des Anspruchs 8.The invention relates to a turret winder for sequentially winding a web onto a plurality of rolls according to the preamble of claim 1 and a method for operating a turret winder according to the preamble of claim 8.

Mit Wendewicklern ist es möglich, eine Bahn, insbesondere eine in einer Druckmaschine bedruckte Bedruckstoffbahn, auf mehrere einzelne Wickel aufzuwickeln. Um jedoch bei einem anstehenden Wickelwechsel den Antransport der Bahn nicht stoppen zu müssen, wird bereits seit geraumer Zeit auf Wendewickler zurückgegriffen, bei denen eine erste Wickelwelle und zumindest eine zweite Wickelwelle vorgesehen sind. Jede Wickelwelle ist mit ihren Enden in jeweils einer Rotationseinrichtung angeordnet und vorzugsweise dort jeweils drehbar gelagert. Auf einer Wickelwelle ist gewöhnlich zumindest eine Wickelhülse drehfest angeordnet, auf welcher die Bahn aufwickelbar ist beziehungsweise aufgewickelt wird und so einen Wickel bildet. Es ist jedoch auch üblich, mehrere Teilbahnen auf mehrere nebeneinander auf einer Wickelwelle angeordneten Wickelhülsen aufzuwickeln, so dass mehrere Wickel parallel entstehen. Hat nun ein Wickel den Sollumfang erreicht oder nahezu erreicht, werden die Rotationseinrichtungen simultan gedreht, so dass der zumindest eine zweite Wickel auf die Bahn geführt werden kann und mit dieser in berührenden Kontakt tritt. Im Wesentlichen gleichzeitig mit der Berührung wird die Bahn durchtrennt, so dass ein neuer Bahnanfang entsteht, der nun auf dem noch leeren, zweiten Wickel mitgenommen wird. Damit kann das Aufwickeln ohne Unterbrechung fortgesetzt werden.With turret winders, it is possible to wind a web, in particular a printing material web that has been printed in a printing machine, onto a plurality of individual rolls. However, in order not to have to stop the transport of the web when a roll change is due, turret winders have been used for some time, in which a first winding shaft and at least one second winding shaft are provided. Each winding shaft is arranged with its ends in a respective rotation device and is preferably rotatably mounted there. At least one winding sleeve is usually arranged in a rotationally fixed manner on a winding shaft, on which the web can be wound up or is wound up and thus forms a winding. However, it is also common to wind several partial webs onto several winding sleeves arranged next to one another on a winding shaft, so that several windings are produced in parallel. If a roll has now reached or almost reached the desired circumference, the rotation devices are turned simultaneously so that the at least one second roll can be guided onto the web and come into touching contact with it. The web is severed essentially at the same time as the contact is made, so that a new beginning of the web is created, which is now carried along on the still empty, second reel. This allows winding to continue without interruption.

Um nun die Bahn mit einer bestimmten Wickelhärte auf den Wickel aufwickeln zu können, ist wenigstens eine Andrückwalze vorgesehen. Die Wickelhärte wird bestimmt durch die Luftmenge, die zwischen den einzelnen Lagen des Wickels eingeschlossen wird. Da jedoch stets nur ein Wickel gewickelt wird, ist in der Regel nun eine Andrückwalze vorgesehen, welche relativ zu allen Wickeln bewegbar ist. Zu diesem Zweck ist eine an zumindest einer Rotationseinrichtung angeordnete Bewegungseinrichtung vorgesehen, in der die Andrückwalze mit einem ihrer Enden gelagert ist.In order to be able to wind the web onto the roll with a specific roll hardness, at least one pressure roller is provided. The winding hardness is determined by the amount of air trapped between the individual layers of the winding. However, since only one roll is wound at a time, a pressure roller is usually provided, which can be moved relative to all the rolls. For this purpose, a movement device arranged on at least one rotation device is provided, in which the pressure roller is mounted with one of its ends.

Während nun der zweite Wickel bewickelt wird, ist es oft notwendig, dass sich eine Bedienperson dem ersten, sich noch im Wendewickler befindlichen Wickel nähert und verschiedene Arbeiten ausführt, zu denen auch das Herausnehmen des Wickels gehören kann. Die an dem neuen Wickel anliegende Andrückwalze bildet zusammen mit dem Wickel einen Walzenspalt, der eine potentielle Gefahrenstelle für die Bedienperson darstellt. Die Bedienperson muss daher davon abgehalten werden, in den Walzenspalt zu gelangen. Gleichzeitig ist es aber auch erforderlich, dass, insbesondere beim Wickelwechsel, eine etwaige Schutzvorrichtung keine Störungen des Wickelbetriebes oder des Wickelwechsels hervorruft. Die DE 10 2014 214 335 A1 zeigt einen solchen Wendewickler, bei dem allerdings eine Bedienperson nicht ausreichend Freiraum vorfindet, um alle notwendigen Arbeiten durchzuführen.While the second lap is being wound, it is often necessary for an operator to approach the first lap, which is still in the turret winder, and carry out various operations, which may include removing the lap. The pressure roller lying against the new roll forms a nip together with the roll, which represents a potential danger point for the operator. The operator must therefore be prevented from entering the nip. At the same time, however, it is also necessary that any protective device, particularly when changing the lap, does not cause any disruptions to the lap operation or the lap change. The DE 10 2014 214 335 A1 shows such a turret winder, in which, however, an operator does not have enough free space to carry out all the necessary work.

Aufgabe der vorliegenden Erfindung ist es daher, die vorgenannten Erfordernisse zu erfüllen.The object of the present invention is therefore to meet the aforementioned requirements.

Die Aufgabe wird gelöst durch die Merkmale des Anspruchs 1. Demnach ist bei einem vorstehend beschriebenen Wendewickler vorgesehen,

  • dass an der zumindest einen Bewegungseinrichtung ein platten-, gitter- oder netzförmiges Element angeordnet ist und
  • dass an zumindest einer der Rotationseinrichtungen zumindest ein Sender zum Senden und/oder zumindest ein Empfänger zum Empfangen elektromagnetischer Strahlung mittelbar oder unmittelbar angeordnet ist.
The object is achieved by the features of claim 1. Accordingly, in a turret winder described above,
  • that an element in the form of a plate, grid or net is arranged on the at least one movement device and
  • that at least one transmitter for transmitting and/or at least one receiver for receiving electromagnetic radiation is arranged directly or indirectly on at least one of the rotation devices.

Das an der zumindest einen Bewegungseinrichtung angeordnete Element ist vorzugsweise ein flächiges Element, das heißt seine Erstreckung in zwei zueinander orthogonalen Raumrichtungen ist wesentlich größer als die Erstreckung in der dritten, zu den beiden anderen Raumrichtungen orthogonalen Raumrichtung. Dieses Element ist erfindungsgemäß platten-, gitter- oder netzförmig ausgebildet, wobei es hier auf die Funktion ankommt und nicht auf die körperliche Ausgestaltung. Andere, ähnliche Ausgestaltungen, die die gleiche Funktion erfüllen, sind hier ebenfalls denkbar. Weiterhin kann dieses Element mit einem Tragrahmen oder Tragleisten ausgestattet sein zum Tragen der Platten-, Gitter- oder Netzstruktur.The element arranged on the at least one movement device is preferably a flat element, ie its extension in two mutually orthogonal spatial directions is significantly greater than the extension in the third spatial direction orthogonal to the other two spatial directions. According to the invention, this element is designed in the form of a plate, lattice or net, in which case the important thing here is the function and not the physical configuration. Other, similar configurations that fulfill the same function are also conceivable here. Furthermore, this element can be equipped with a supporting frame or supporting slats for supporting the plate, lattice or net structure.

Die Bewegungseinrichtung kann dabei eine Linearführung sein, welche sich entlang einer gedachten Linie erstreckt, welche die erste Wickelwelle und die zweite Wickelwelle miteinander verbindet. An dem Schlitten, an dem die Andrückwalze angeordnet ist, kann auch das Element befestigt sein. Eine weitere Befestigung einer der Rotationseinrichtungen ist nicht notwendig, jedoch vorteilhaft. Diese weitere Befestigung kann ebenfalls einen Schlitten, der auf Linearführungen läuft, umfassen oder aus einem Schwenklager, wie es in der DE 10 2014 214 335 A1 gezeigt ist, wobei in diesem Fall das Element eine teleskopartige Verschiebemöglichkeit aufweisen muss. Auch die Druckschrift JP 2004 269102 A zeigt einen solchen Wendewickler zum aufeinanderfolgenden Wickeln einer Bahn auf mehrere Rollen, bei dem eine erste Wickelwelle und zumindest eine zweite Wickelwelle vorgesehen sind, wobei die erste und die zweite Wickelwelle mit ihren Enden von zwei Rotationseinrichtungen getragen werden. Ferner umfasst der Wendewickler eine Andrückwalze die zwischen der ersten Wickelwelle und der zweiten Wickelwelle bewegbar ist.The movement device can be a linear guide that extends along an imaginary line that connects the first winding shaft and the second winding shaft to one another. The element can also be fastened to the carriage on which the pressure roller is arranged. A further attachment of one of the rotation devices is not necessary, but advantageous. This additional attachment can also include a carriage that runs on linear guides, or from a pivot bearing, as in the DE 10 2014 214 335 A1 is shown, in which case the element must have a telescopic displacement possibility. Also the print JP 2004 269102 A shows such a turret winder for sequentially winding a web onto a plurality of rolls, in which a first winding shaft and at least one second winding shaft are provided, the first and second winding shafts being supported at their ends by two rotary devices. Furthermore, the turret winder includes a pressure roller which can be moved between the first winding shaft and the second winding shaft.

In einer bevorzugten Ausführungsform ist jedoch die Andrückwalze in einem Ende eines Schwenkarms befestigt, wobei das zweite Ende des Schwenkarms schwenkbar in zumindest einer Rotationseinrichtung gelagert ist. Aus Stabilitätsgründen empfiehlt es sich, jedes Ende der Andrückwalze in jeweils einem Schwenkarm zu lagern, wobei jeder Schwenkarm einer der Rotationseinrichtungen zugeordnet ist. Der zumindest eine Schwenkarm ist mittels eines Antriebs antreibbar, vorzugsweise mittels eines Pneumatikzylinders, welcher in der Lage ist, eine konstante Kraft bereitzustellen.In a preferred embodiment, however, the pressure roller is fastened in one end of a swivel arm, with the second end of the swivel arm being pivotably mounted in at least one rotation device. For reasons of stability, it is advisable to mount each end of the pressure roller in a swivel arm, with each swivel arm being assigned to one of the rotation devices. The at least one swivel arm can be driven by means of a drive, preferably by means of a Pneumatic cylinder, which is able to provide a constant force.

Erfindungsgemäß ist neben der soeben beschriebenen mechanischen Schutzeinrichtung an zumindest einer der Rotationseinrichtung zumindest ein elektromagnetischer Strahlung angeordnet. Sender und/oder Empfänger können auch an mit der Drehscheibe oder den Drehscheiben verbundenen Bauteilen angeordnet sein, beispielsweise an Traversen oder an dem vorgenannten Schwenklager oder den Schwenklagern. Damit wird es ermöglicht, eine zweite Schutzeinrichtung zur Verfügung zu stellen, welche größtenteils keine mechanischen Elemente umfasst und welche daher ermöglicht, Freiraum bereitzustellen. Zu diesem Zweck ist es vorgesehen, die elektromagnetische Strahlung fakultativ zu verwenden, diese also an- und abschaltbar auszugestalten. Ein Abschalten dieser Strahlung ermöglicht es der Bedienperson in den Wendewickler einzugreifen, ohne dass die elektromagnetische Strahlung unbeabsichtigt unterbrochen wird. Dies ist möglich, wenn der weiter oben beschriebene Walzenspalt weit genug von dem Bereich entfernt ist, in dem die Bedienperson arbeitet. Dies ist vor allem kurz nach dem Wickelwechsel der Fall, wenn der neue Wickel noch klein ist. Ist die elektromagnetische Strahlung eingeschaltet und wird, beispielsweise durch eine Bewegung der Bedienperson, die elektromagnetische Strahlung unterbrochen, so kann der Wendewickler beispielsweise dadurch reagieren, dass die Anstellkraft der Andrückwalze reduziert wird. Dies kann etwa dadurch erreicht werden, dass der Pneumatikzylinder drucklos geschaltet wird. Zusätzlich kann der Wickelprozess gestoppt werden, d.h. der sich drehende Wickel angehalten werden.According to the invention, in addition to the mechanical protection device just described, at least one electromagnetic radiation arranged. Transmitters and/or receivers can also be arranged on components connected to the turntable or turntables, for example on traverses or on the aforementioned pivot bearing or pivot bearings. This makes it possible to provide a second protective device which for the most part does not include any mechanical elements and which therefore makes it possible to provide free space. For this purpose, it is provided that the electromagnetic radiation can be used optionally, that is to say that it can be switched on and off. Switching off this radiation enables the operator to intervene in the turret winder without unintentionally interrupting the electromagnetic radiation. This is possible if the nip described above is far enough away from the area where the operator is working. This is especially the case shortly after changing the lap when the new lap is still small. If the electromagnetic radiation is switched on and the electromagnetic radiation is interrupted, for example by a movement by the operator, the turret winder can react, for example, by reducing the contact force of the pressure roller. This can be achieved, for example, by depressurizing the pneumatic cylinder. In addition, the winding process can be stopped, ie the rotating winding can be stopped.

Durch das Zusammenwirken eines festen, aber aufgrund der Anordnung an der Bewegungseinrichtung relativ zum Wickel beweglichen Elements und der Überwachung einer Fläche oder eines Raumes mittels elektromagnetischer Strahlung, wobei die Überwachung fakultativ erfolgt, kann sichergestellt werden, dass die Bedienperson keiner Verletzungsgefahr ausgesetzt ist, aber auch durch bedarfsweises Abschalten der elektromagnetischen Strahlung keine Störungen beim Wickelwechsel auftreten können.The interaction of a fixed element that is movable relative to the roll due to the arrangement on the movement device and the monitoring of an area or a room by means of electromagnetic radiation, with the monitoring being optional, can ensure that the operator is not exposed to any risk of injury, but also by switching off the electromagnetic radiation as required, no disturbances can occur when changing the roll.

Der Sender ist dabei bevorzugt eine Lichtquelle, die insbesondere Laserlicht emittiert. Unter Licht wird dabei nicht nur diejenige elektromagnetische Strahlung verstanden, die für das menschliche Auge sichtbar ist. Dennoch ist dieses von Vorteil, damit eine Bedienperson den Gefahrenbereich auch erkennen kann. Die Verwendung von Laserlicht ist vorteilhaft, da dieses sehr gut fokussiert ist. Der Empfänger ist dabei ein Baustein, der die elektromagnetische Strahlung in elektrische Signale umsetzt, wobei der Fotoeffekt zugrunde liegt.The transmitter is preferably a light source that emits laser light in particular. Light is not only understood to mean that electromagnetic radiation that is visible to the human eye. Nevertheless, this is an advantage so that an operator can also see the danger area can recognize. The use of laser light is advantageous because it is very well focused. The receiver is a component that converts the electromagnetic radiation into electrical signals, based on the photo effect.

In einer vorteilhaften Ausgestaltung der Erfindung ist es vorgesehen, dass der Sender und/oder der Empfänger eine langgestreckte Form aufweisen. Auf diese Weise kann eine flächige Abdeckung erfolgen, so dass die Bedienperson nicht an der elektromagnetischen Strahlung vorbei den Walzenspalt erreichen kann. Bevorzugt sind sowohl der Sender als auch der Empfänger langgestreckt, so dass eine Mehrzahl bevorzugt parallel verlaufender Strahlen aus elektromagnetischer Strahlung erzeugbar ist. Der Begriff "langgestreckte Form" kann dabei insbesondere bedeuten, dass ein oder mehrere Lichtsender entlang einer Linie angeordnet sind. Eine solche Anordnung kann dann auch für den Empfänger vorgesehen sein. Man kann also davon sprechen, dass ein Lichtgitter aufgebaut wird.In an advantageous embodiment of the invention, it is provided that the transmitter and/or the receiver have an elongated shape. In this way, a planar coverage can take place, so that the operator cannot reach the roller gap past the electromagnetic radiation. Both the transmitter and the receiver are preferably elongated, so that a plurality of preferably parallel beams of electromagnetic radiation can be generated. The term "elongated shape" can mean in particular that one or more light transmitters are arranged along a line. Such an arrangement can then also be provided for the recipient. One can therefore speak of a light grid being set up.

In einer weiteren Ausführungsform ist vorgesehen, dass das platten-, gitter- oder netzförmiges Element auf einer Seite und der Sender und/oder Empfänger auf der anderen Seite einer gedachten, von der ersten und der zweiten Wickelwelle aufgespannten Ebene liegt. Beispielsweise kann vorgesehen sein, dass Sender und/oder Empfänger oberhalb und das platten-, gitter- oder netzförmiges Element unterhalb der Wickelwellen liegen, bzw. umgekehrt, wobei angenommen wird, dass die durch die Wickelwellen aufgespannte Ebene horizontal angeordnet ist. Einfach dargestellt befindet sich die mechanische Schutzeinrichtung auf einer Seite der Wickelwellen und der elektromagnetische Schutz auf der anderen Seite der Wickelwellen.In a further embodiment it is provided that the element in the form of a plate, grid or net is on one side and the transmitter and/or receiver on the other side of an imaginary plane spanned by the first and the second winding shaft. For example, it can be provided that the transmitter and/or receiver are above and the plate-, grid- or net-shaped element is below the winding shafts, or vice versa, it being assumed that the plane spanned by the winding shafts is arranged horizontally. Simply put, the mechanical protection is on one side of the winding shafts and the electromagnetic protection is on the other side of the winding shafts.

In weiterer Ausgestaltung der Erfindung ist als Bewegungseinrichtung ein Schwenklager vorgesehen, wobei das Schwenklager und der Sender und/oder der Empfänger auf einer Ebene liegen, die orthogonal zu der von der ersten und der zweiten Wickelwelle aufgespannten Ebene liegt und parallel zu der ersten und der zweiten Wickelwelle verläuft. Auf diese Weise wird eine symmetrische Anordnung der zuvor genannten Merkmale erreicht, was die Montage und auch die Bedienung des Wendewicklers erleichtert.In a further embodiment of the invention, a pivot bearing is provided as the movement device, with the pivot bearing and the transmitter and/or the receiver lying on a plane which is orthogonal to the plane spanned by the first and the second winding shaft and parallel to the first and the second winding shaft runs. In this way, one Achieved symmetrical arrangement of the aforementioned features, which facilitates the assembly and operation of the turret winder.

Zusätzlich ist es vorteilhaft, wenn der Sender an einer der Rotationseinrichtungen und der Empfänger an der anderen Rotationseinrichtung angeordnet ist, so dass beide mit der Drehung der Rotationseinrichtung mitdrehen und daher in fester Position relativ zu den Wickelwellen verbleiben.In addition, it is advantageous if the transmitter is arranged on one of the rotation devices and the receiver on the other rotation device, so that both rotate with the rotation of the rotation device and therefore remain in a fixed position relative to the winding shafts.

In einer weiteren vorteilhaften Ausführungsform der Erfindung ist vorgesehen, dass an einem Maschinengestell, in welchem die Rotationseinrichtungen rotierbar gelagert sind, zumindest ein weiterer Sender zum Senden und/oder Empfänger zum Empfangen elektromagnetischer Strahlung angeordnet ist. Ein solcher weiterer Sender und/oder Empfänger kann dazu dienen, die Anwesenheit eines ausreichend großen Wickels zu detektieren. Daraufhin ist es möglich, den ersten Sender und/oder Empfänger abzuschalten. Ist ein ausreichend großer Wickel fertig gewickelt, aber noch nicht aus dem Wendewickler entfernt worden, so dient dieser als Schutz für eine Bedienperson, so dass der Schutz durch den ersten Sender und/oder Empfänger in diesem Moment nicht benötigt wird.In a further advantageous embodiment of the invention it is provided that at least one further transmitter for transmitting and/or receiver for receiving electromagnetic radiation is arranged on a machine frame in which the rotation devices are rotatably mounted. Such a further transmitter and/or receiver can be used to detect the presence of a sufficiently large roll. It is then possible to switch off the first transmitter and/or receiver. If a sufficiently large coil has been wound but has not yet been removed from the turret winder, it serves as protection for an operator, so that protection by the first transmitter and/or receiver is not required at this point.

Erfindungsgemäß wird die weiter oben beschriebene Aufgabe auch durch sämtliche Merkmale des Anspruchs 8 gelöst. Demnach ist bei einem Verfahren zum Betreiben eines Wendewicklers vorgesehen, dass mit einem an dem zumindest einen Schwenkarm angeordneten platten-, gitter- oder netzförmigen Element ein Walzenspalt abgedeckt wird und mit wenigstens einem zumindest an einer der Rotationseinrichtungen angeordneten Sender zum Senden und/oder Empfänger zum Empfangen elektromagnetischer Strahlung fakultativ der Walzenspalt zusätzlich überwacht wird.According to the invention, the object described above is also achieved by all the features of claim 8 . Accordingly, in a method for operating a turret winder, it is provided that a roll gap is covered with a plate-, grid- or net-shaped element arranged on the at least one swivel arm and with at least one transmitter for transmitting and/or receiver arranged on at least one of the rotation devices Receiving electromagnetic radiation optionally the nip is additionally monitored.

Die damit erzielbaren Vorteile sind die gleichen, die mit einem erfindungsgemäßen Wendewickler erzielbar sind.The advantages that can be achieved in this way are the same as those that can be achieved with a turret winder according to the invention.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung gehen aus der nachfolgenden Beschreibung hervor, in der unter Bezugnahme auf die Figuren verschiedene Ausführungsbeispiele im Einzelnen erläutert sind. Im Rahmen der gesamten Offenbarung gelten Merkmale und Einzelheiten, die im Zusammenhang mit dem erfindungsgemäßen Verfahren beschrieben sind, selbstverständlich auch im Zusammenhang mit dem erfindungsgemäßen Wendewickler und jeweils umgekehrt, so dass bezüglich der Offenbarung zu den einzelnen Aspekten der Erfindung stets wechselseitig Bezug genommen wird beziehungsweise werden kann. Auch Merkmale, die im Zusammenhang mit anderen Merkmalen beschrieben worden sind, können unabhängigen von diesen anderen Merkmalen mit beliebigen weiteren Merkmalen dieser Offenbarung zu neuen Merkmalskombinationen verbunden werden, auch wenn diese Merkmalskombinationen nicht separat erwähnt worden sind. Die einzelnenFurther advantages, features and details of the invention emerge from the following description, in which various exemplary embodiments are explained in detail with reference to the figures. Within the scope of the disclosure as a whole, features and details that are described in connection with the method according to the invention apply, of course, also in connection with the turret winder according to the invention and vice versa, so that the disclosure of the individual aspects of the invention is or are always referred to mutually can. Features that have been described in connection with other features can also be combined with any other features of this disclosure to form new feature combinations, independently of these other features, even if these feature combinations have not been mentioned separately. The single ones

Figuren zeigen:

Fig. 1
Schnitt durch einen erfindungsgemäßen Wickler
Fig. 2
Ansicht wie in Fig. 1, jedoch nach einem ersten Wickelwechsel
Fig. 3
Ansicht wie in Fig. 1, jedoch nach einem weiteren Wickelwechsel
Figures show:
1
Section through a winder according to the invention
2
view as in 1 , but after a first roll change
3
view as in 1 , but after another roll change

Fig. 1 zeigt einen Schnitt durch einen erfindungsgemäßen Wendewickler 101, wobei wichtige Merkmale der Erfindung dargestellt sind. Erkennbar sind zunächst die erste Wickelwelle 102 und die zweite Wickelwelle 103, welche jeweils in einem als Drehscheibe 104 ausgebildeten Rotationselement drehbar gelagert sind und optional drehantreibbar sind. Hierzu können geeignete Drehantriebe, vorzugsweise Elektromotoren, zur Verfügung stehen. Jede der Wickelwellen 102 und 103 können jeweils mit einer oder mit mehreren Wickelhülsen 105, 106 belegt werden, auf welche die Bahn ungeteilt oder mit Längsschnitten aufwickelbar sind, so dass Wickel entstehen können, von denen der Wickel 107 gerade gebildet wird. 1 shows a section through a turret winder 101 according to the invention, with important features of the invention being shown. First, the first winding shaft 102 and the second winding shaft 103 can be seen, which are each rotatably mounted in a rotating element designed as a rotary disk 104 and can optionally be driven in rotation. Suitable rotary drives, preferably electric motors, can be available for this purpose. Each of the winding shafts 102 and 103 can each be fitted with one or more winding sleeves 105, 106 onto which the web can be wound undivided or with longitudinal sections, so that windings can arise from which the winding 107 is currently being formed.

Der Wickel 107 wird gebildet durch Zuführung einer Bahn 108, die zumindest über eine Walze führbar ist bzw. geführt wird. Diese Walze ist im Ausführungsbeispiel der Figur 1 als Kontaktwalze 109 ausgebildet, d.h. sie legt die Bahn 108 direkt auf den Außenumfang des Wickels 107 auf. Um die Kontaktwalze auf konstantem Abstand relativ zum wachsenden Außenumfang des Wickels halten zu können, ist diese beweglich relativ zum Wickel gelagert. Im gezeigten Beispiel ist die Kontaktwalze entlang von Linearführungen 110 verschiebbar, welche an dem Maschinengestell 111 angeordnet sein können. Anstelle von Linearführungen können auch beliebige andere mechanische Elemente vorgesehen sein, die die genannte Funktion, nämlich die Relativbewegung der Kontaktwalze zum Wickel, erfüllen.The roll 107 is formed by feeding in a web 108 which can be guided or is guided at least over a roller. This roller is in the embodiment figure 1 designed as a contact roller 109, ie it lays the web 108 directly onto the outer circumference of the roll 107. In order to be able to keep the contact roller at a constant distance relative to the growing outer circumference of the roll, it is movably mounted relative to the roll. In the example shown, the contact roller can be displaced along linear guides 110 which can be arranged on the machine frame 111 . Instead of linear guides, any other mechanical elements can also be provided that fulfill the function mentioned, namely the movement of the contact roller relative to the roll.

Die Drehrichtungen des Wickels 107 und der Kontaktwalze 109 sind durch die Pfeile W und K angegeben. Die Drehrichtungen können aber auch umgekehrt sein, so dass alternativ auch die Außenseite des Wickels die Innenseite bilden kann. In der Drehscheibe 104 können ebenfalls rotierend gelagert sein die Leitwalzen 110 und 111, welche der Führung der Bahn 108 dienen, wenn die Drehscheibe 104 zum Zwecke des Wickelwechsels gedreht wird.The directions of rotation of the reel 107 and the contact roller 109 are indicated by the W and K arrows. However, the directions of rotation can also be reversed, so that alternatively the outside of the roll can also form the inside. The guide rollers 110 and 111, which are used to guide the web 108 when the turntable 104 is rotated for the purpose of changing the lap, can also be rotatably mounted in the turntable 104.

Um die äußere Bahnlage des Wickels 107 weiter an den Wickel andrücken zu können, insbesondere auch während des Wickelwechsels, ist eine Andrückwalze 112 vorgesehen, welche rotierbar und relativ zum Wickel beweglich gelagert ist. Die Drehrichtung der Andrückwalze, die gegenläufig zur Drehrichtung W des Wickels läuft, ist durch den Pfeil A angegeben. Zum Ermöglichen der Relativbewegung der Andrückwalze 112 zum Wickel 107 ist die Andrückwalze 112 im vorliegenden Ausführungsbeispiel an einem Ende eines Schwenkarms 113 rotierbar gelagert. Das zweite Ende des Schwenkarms 113 ist mittels eines Schwenklagers 114 in der Drehscheibe 104 gelagert, wobei die Andrückwalze relativ zur Drehscheibe 104 und damit relativ zum Wickel 107 bewegbar ist. Um diese Bewegung vollführen zu können, ist ein Antrieb vorgesehen, der im vorliegenden Ausführungsbeispiel als Kolbenhubzylinder 114 ausgebildet ist, der beispielsweise mit Druckluft betreibbar ist. Der Kolben des Kolbenhubzylinders ist mittels eines Drehlagers drehbar am Schwenkarm 113 angeschlagen, während der Zylinder, ebenfalls mittels eines Drehlagers, drehbar an der Drehscheibe 104 angeordnet ist.In order to be able to continue to press the outer web layer of the roll 107 against the roll, in particular also during the change of the roll, a pressure roller 112 is provided, which is mounted rotatably and movably relative to the roll. The direction of rotation of the pressure roller, which runs in the opposite direction to the direction of rotation W of the roll, is indicated by the arrow A. To enable the relative movement of the pressure roller 112 to the roll 107, the pressure roller 112 is rotatably mounted on one end of a swivel arm 113 in the present embodiment. The second end of the swivel arm 113 is mounted in the turntable 104 by means of a swivel bearing 114 , the pressure roller being movable relative to the turntable 104 and thus relative to the roll 107 . In order to be able to carry out this movement, a drive is provided which, in the present exemplary embodiment, is designed as a piston lifting cylinder 114 which can be operated, for example, with compressed air. The piston of the piston lifting cylinder is by means of a pivot bearing rotatably attached to the swivel arm 113, while the cylinder is rotatably arranged on the turntable 104, also by means of a rotary bearing.

An dem Schwenkarm 113 ist weiterhin ein Schutz 115 angeordnet, welcher sich parallel zur Andrückwalze 112 erstreckt. Dieser Schutz kann ein sich flächig erstreckendes Element, insbesondere ein Netz, ein Gitter, eine Platte oder dergleichen, umfassen, wobei verhinderbar ist, dass ein Gegenstand oder gar ein Körperteil einer Person in den durch den Wickel 107 und die Andrückwalze 112 erzeugten Walzenspalt 120 eindringt.A guard 115 is also arranged on the swivel arm 113 and extends parallel to the pressure roller 112 . This protection can include a planar element, in particular a net, a grid, a plate or the like, whereby it can be prevented that an object or even a body part of a person penetrates into the roller gap 120 created by the roll 107 and the pressure roller 112 .

Die Drehscheibe 104 trägt eine weitere Schutzeinrichtung, die als Sender 116 und/oder Empfänger für elektrooptische Strahlung ausgebildet ist. Bei dieser Schutzeinrichtung wird durch den Sender 116 elektromagnetische Strahlung bereitgestellt, die durch einen Empfänger empfangbar ist, wobei der Empfänger vorzugsweise der Messung der Intensität der empfangenden Strahlung dient. Der Empfänger kann an der zweiten, nicht dargestellten Drehscheibe 104' angeordnet sein. Jedoch ist auch denkbar, dass an der zweiten Drehscheibe 104` lediglich ein oder mehrere Reflektoren angeordnet sind, so dass die vom Sender ausgesendete elektromagnetische Strahlung zurück reflektiert wird. In diesem Fall kann ein Empfänger direkt neben, oberhalb und/oder unterhalb des Senders 116 an der Drehscheibe 104 angeordnet werden, was den Aufwand für die Verkabelung von Sender und Empfänger reduziert. Es ist darauf hinzuweisen, dass anstelle von nur einem Sender und/oder Empfänger auch mehrere Sender und/oder Empfänger vorgesehen sein können. Gelangt nun bei vorhandener elektromagnetischer Strahlung (im Folgenden auch als Lichtstrahl bezeichnet), also bei eingeschaltetem Sender, ein Gegenstand oder ein Körperteil des Bedieners in den Strahlengang der elektromagnetischen Strahlung, so ist registriert der Empfänger eine reduzierte Intensität der elektromagnetischen Strahlung. Diese Information wird durch eine nicht gezeigte Steuereinrichtung ausgewertet und weiterverarbeitet werden. Diese Weiterverarbeitung kann sich beispielsweise darin äußern, dass der Wickelprozess in dem Wendewickler gestoppt wird. Ebenso kann die Andrückwalze 112 von dem Wickel 107 entfernt werden, so dass die Gefahrenstelle des Wickelspalts nicht mehr vorhanden ist. Dazu kann der an der Kolbenzylindereinheit anliegende Druck weggenommen werden, d.h. der Zylinder wird drucklos geschaltet bzw. in Gegenrichtung geschaltet. Ein in den Walzenspalt eingedrungener Gegenstand wird nun nicht mehr im Walzenspalt gequetscht oder in diesem weiter transportiert.The turntable 104 carries a further protective device, which is designed as a transmitter 116 and/or receiver for electro-optical radiation. In this protective device, the transmitter 116 provides electromagnetic radiation which can be received by a receiver, the receiver preferably being used to measure the intensity of the received radiation. The receiver can be arranged on the second turntable 104', which is not shown. However, it is also conceivable that only one or more reflectors are arranged on the second turntable 104`, so that the electromagnetic radiation emitted by the transmitter is reflected back. In this case, a receiver can be arranged directly next to, above and/or below the transmitter 116 on the turntable 104, which reduces the effort involved in wiring the transmitter and receiver. It should be pointed out that instead of just one transmitter and/or receiver, multiple transmitters and/or receivers can also be provided. If an object or part of the operator's body enters the beam path of the electromagnetic radiation when electromagnetic radiation is present (also referred to below as a light beam), i.e. when the transmitter is switched on, the receiver registers a reduced intensity of the electromagnetic radiation. This information is evaluated and further processed by a control device (not shown). This further processing can manifest itself, for example, in the fact that the winding process in the turret winder is stopped. Likewise, the pressure roller 112 can be removed from the winding 107 so that the danger point of the winding gap is no longer present. For this he can the pressure applied to the piston-cylinder unit can be removed, ie the cylinder is depressurized or switched in the opposite direction. An object that has entered the nip is no longer squeezed in the nip or transported further in it.

In der Figur 1 ist dargestellt, dass der Wickel 107 bewickelt wird, während die Hülse 106 bereits für den folgenden Wickelwechsel auf die Wickelwelle 103 aufgeschoben wurde. Das Bestücken und/oder das Einsetzen der Wickelwelle 103 erfolgt in der Regel zumindest zum Teil durch händischen Eingriff durch den Bediener. Ein Bediener steht während der Vorbereitung der neuen Hülse 106 in der Regel auf der Arbeitsplattform 117, so dass für diesen Bediener mit dem laufenden Wickelprozess eine Gefahrenquelle vorhanden ist. In verschiedenen Stadien des laufenden Wickelprozesses beziehungsweise des zuvor erfolgten oder des noch folgenden Hülsen- und Wickelwechsels werden durch die vorliegende Erfindung verschiedene Sicherheitsszenarien und Sicherheitsmerkmale zur Verfügung gestellt, die im Folgenden anhand der Figuren näher erläutert werden.In the figure 1 it is shown that the reel 107 is being wound while the sleeve 106 has already been pushed onto the winding shaft 103 for the following reel change. The loading and/or the insertion of the winding shaft 103 usually takes place at least in part through manual intervention by the operator. An operator is usually standing on the work platform 117 while the new core 106 is being prepared, so that there is a source of danger for this operator with the ongoing winding process. Various safety scenarios and safety features are provided by the present invention in various stages of the ongoing winding process or the previous or subsequent change of core and winding, which are explained in more detail below with reference to the figures.

In dem Zeitraum, in dem der Wickel 107 noch einen kleinen Durchmesser aufweist, besteht für den Bediener aufgrund der Entfernung zwischen der Position der Wickelwelle 103 und dem Walzenspalt 120 keine Gefahr. Aus diesem Grund kann der Sender und/oder Empfänger ausgeschaltet bleiben bzw. werden. Dieses ist sogar als vorteilhaft anzusehen, da es während der Vorbereitung der neuen Wickel vorkommen kann, dass der Bediener den Lichtstrahl durchbricht. Bei eingeschaltetem Sender würde dann beispielsweise der laufende Wickelvorgang gestoppt, obwohl keine akute Gefahr für den Bediener bestanden hat. Es kann vorgesehen sein, dass wenn der Wickel 107 im Laufe des Durchmesserwachstums einen Grenzdurchmesser durchschritten hat, der Sender und/oder Empfänger eingeschaltet wird. Dazu kann die Steuereinrichtung den aktuellen Wickeldurchmesser beobachten, beispielsweise durch Auswertung des Messsensors, und/oder berechnen auf Basis der bereits aufgewickelten Lauflänge der Bahn und der Dicke der Bahn. Ist der Grenzdurchmesser dann erreicht, so schaltet die Steuereinrichtung den Sender und/oder Empfänger ein. Es kann aber auch vorgesehen sein, dass der Abschluss der Vorbereitungsarbeiten in Bezug auf die neue Wickelhülse 106 durch den Bediener bestätigt werden muss. Dazu kann durch Betätigung einer Taste oder eines Tasters der Steuereinrichtung der Abschluss der Vorbereitung mitgeteilt werden. Ist der Grenzdurchmesser durchschritten, aber diese Bestätigung noch nicht erfolgt, so kann vorgesehen sein, dass der Wickelprozess aus Sicherheitsgründen gestoppt wird, ohne dass der Sender und/oder Empfänger eingeschaltet wird. Diese Vorgehensweise kann im Zusammenhang mit dem folgenden Sachverhalt vorteilhaft sein. Nach dem Wechsel des Wickels kann der zuletzt vollständig bewickelte Wickel noch in der Entnahmeposition sich befinden, die mit der Vorbereitungsposition identisch ist (dargestellt in Figur 3). Sollte nun die Entnahme dieses vollständig bewickelten Wickels noch nicht erfolgt sein, so besteht für den Bediener keine Gefährdung durch den Wickelspalt 120, auch wenn der Grenzdurchmesser noch nicht durchschritten ist. Um nun ein Aktivieren des Senders und/oder des Empfängers durch die Steuereinrichtung zu verhindern, kann ein Sensor 121 (in Figur 1 gezeigt) vorgesehen sein, der beispielsweise im Maschinengestell 122 des Wendewicklers angeordnet ist. Dieser Sensor 121 kann eine so genannte Einweg-Lichtschranke sein. Befindet sich nun, wie es in der Figur 3 gezeigt ist, ein Wickel im Detektionsbereich des Sensors, so wird der Steuereinrichtung diese Information zur Verfügung gestellt. Die Steuereinrichtung setzt daraufhin die Aktivierung des Senders 116 und/oder des Empfängers aus, auch wenn der neue Wickel den Grenzdurchmesser überschritten hat. Erst wenn der Sensor 121 erkennt, dass der Detektionsbereich wieder frei ist und die Steuereinrichtung eine entsprechende Information erhält, hebt die Steuereinrichtung die Aussetzung der Aktivierung des Senders 116 und/oder des Empfängers wieder auf.In the period in which the reel 107 still has a small diameter, the distance between the position of the reel shaft 103 and the nip 120 does not pose any danger to the operator. For this reason, the transmitter and/or receiver can remain or become switched off. This can even be seen as an advantage, as it can happen that the operator breaks through the light beam during the preparation of the new rolls. When the transmitter is switched on, for example, the ongoing wrapping process would be stopped, although there was no acute danger to the operator. Provision can be made for the transmitter and/or receiver to be switched on when the roll 107 has exceeded a limit diameter in the course of the increase in diameter. For this purpose, the control device can monitor the current roll diameter, for example by evaluating the measuring sensor, and/or calculate it on the basis of the running length of the web that has already been wound up and the thickness of the web. If the limit diameter is then reached, the control device switches on the transmitter and/or receiver. But it can also be provided that the Completion of the preparatory work in relation to the new core 106 must be confirmed by the operator. For this purpose, the completion of the preparation can be communicated to the control device by pressing a key or a button. If the limit diameter has been exceeded but this confirmation has not yet taken place, provision can be made for the winding process to be stopped for safety reasons without the transmitter and/or receiver being switched on. This procedure can be advantageous in connection with the following situation. After changing the lap, the lap that was completely wound last can still be in the removal position, which is identical to the preparation position (shown in Fig figure 3 ). If this completely wound roll has not yet been removed, the operator is not endangered by the winding gap 120, even if the limit diameter has not yet been exceeded. In order to prevent the transmitter and/or the receiver from being activated by the control device, a sensor 121 (in figure 1 shown) may be provided, which is arranged, for example, in the machine frame 122 of the turret winder. This sensor 121 can be what is known as a one-way light barrier. Is now as it is in the figure 3 is shown, a roll in the detection range of the sensor, the control device is provided with this information. The control device then suspends the activation of the transmitter 116 and/or the receiver, even if the new roll has exceeded the limit diameter. Only when the sensor 121 detects that the detection area is free again and the control device receives corresponding information does the control device lift the suspension of the activation of the transmitter 116 and/or the receiver again.

Die Figur 2 zeigt nun eine Situation nach einem Wickelwechsel und einem weit fortgeschrittenen Wickelvorgang. An der Stelle des Wickels 107 in der Figur 1 befindet sich in Figur 2 nun die Wickelwelle 103 mit der Wickelhülse 106, die zusammen den neuen Wickel 123 bilden. Diese Anordnung wird ausgehend von der in der Figur 1 dargestellten Anordnung dadurch erreicht, dass die Drehscheibe in Richtung des Pfeiles D rotiert wird, vorzugsweise um einen Winkel von 180°, so dass die Wickelwelle 102 die Position der Wickelwelle 103 einnimmt und umgekehrt. Während dieses Vorgangs läuft der Wickelprozess weiter, wobei die Andrückwalze 112 weiterhin an dem Wickel 107 anliegt. Ab einem relativen Rotationswinkel von ungefähr 90° wird die Bahn 108 zusätzlich durch die Leitwalze 110 geführt, um zu verhindern, dass die Bahn 108 andere Bauteile des Wendewicklers berührt wie beispielsweise die Andrückwalze 112. Im weiteren Verlauf der Rotation der Drehscheibe 104 gelangt die Wickelhülse 106 mit der Bahn 108 in berührenden Kontakt. Zeitgleich erfolgt ein Schnitt der Bahn 108 durch eine nicht gezeigte Trenneinrichtung, so dass der neu entstandene Bahnanfang durch Klebekräfte, die zwischen der neuen Hülse 106 und der Bahn 108 wirken, mitgenommen wird. Diese Klebekräfte können beispielsweise durch doppelseitige Klebestreifen, durch aufgetragenen Klebstoff oder auch durch elektrostatische Aufladung bereitgestellt werden. Nachdem der Bahnanfang auf diese Weise auf die neue Hülse 106 festgelegt wurde, schwenkt der Schwenkarm 113 an den neuen Wickel 123 an, so dass auch bei diesem neuen Wickel die obere Bahnlage jeweils angedrückt wird. Der Schwenkarm 113 befindet sich nun in einer hängenden Position, in der die Lagerung des Schwenkarms 113 oberhalb der Lagerung der Andrückwalze 112 in dem Schwenkarm 113 angeordnet ist. Eine Bedienperson greift in der Regel oberhalb des Dorns 103 in den Wickler ein, so dass es ausreichend ist, wenn ausschließlich der Schutz 115 den Bedienraum gegen den neuen Wickel 123 abschirmt. Mit anderen Worten ist bei einer hängenden Position des Schwenkarms der Sender 116 ausgeschaltet. Dieses bietet wiederum Vorteile, da sonst möglicherweise beispielsweise durch herabfallende oder herabhängende Gegenstände wie etwa das freie Bahnende in den Wirkbereich des Senders gelangen und so einen Stopp der Wickeleinrichtung ungerechtfertigterweise auslösen könnten.The figure 2 now shows a situation after a lap change and a very advanced winding process. At the point of the winding 107 in the figure 1 located in figure 2 now the winding shaft 103 with the winding sleeve 106, which together form the new winding 123. This arrangement is based on the in the figure 1 The arrangement shown is achieved in that the turntable is rotated in the direction of arrow D, preferably through an angle of 180°, so that the winding shaft 102 changes the position of the winding shaft 103 takes and vice versa. During this process, the winding process continues, with the pressure roller 112 still being in contact with the roll 107 . From a relative angle of rotation of approximately 90°, the web 108 is also guided by the guide roller 110 in order to prevent the web 108 from touching other components of the turret winder, such as the pressure roller 112. As the rotation of the turntable 104 continues, the winding core 106 comes into contact in touching contact with web 108 . At the same time, the web 108 is cut by a severing device (not shown), so that the newly formed beginning of the web is carried along by adhesive forces acting between the new core 106 and the web 108 . These adhesive forces can be provided, for example, by double-sided adhesive strips, by applied adhesive or by electrostatic charging. After the start of the web has been fixed to the new core 106 in this way, the pivoting arm 113 pivots towards the new roll 123, so that the upper web layer is also pressed on this new roll. The swivel arm 113 is now in a suspended position, in which the bearing of the swivel arm 113 is arranged above the bearing of the pressure roller 112 in the swivel arm 113 . As a rule, an operator reaches into the winder above the mandrel 103, so that it is sufficient if only the protection 115 shields the operator's space from the new winder 123. In other words, when the swivel arm is in a hanging position, the transmitter 116 is switched off. This in turn offers advantages, since otherwise, for example, falling or hanging objects, such as the free end of the web, could get into the effective range of the transmitter and thus cause the winding device to stop unjustifiably.

Die Darstellung der Figur 2 zeigt nun die Wickelwelle 102, die bereits mit einer neuen, leeren Wickelhülse 105 bestückt ist.The representation of figure 2 now shows the winding shaft 102, which is already equipped with a new, empty winding tube 105.

Die Figur 3 zeigt die Situation nach einem abermaligen Wickelwechsel, der auf gleiche Weise vollzogen wird wie der Wickelwechsel, der anhand des Übergangs von der Figur 1 zur Figur 2 erläutert wurde. Der Wickel 123 befindet sich hier in einer Position, in der er durch das Bedienpersonal aus der Wickelvorrichtung herausgenommen werden kann. Jedoch überdeckt dieser Wickel 123 den in der Figur 1 dargestellten Sensor 121. Das bedeutet, dass dieser Sensor das Vorhandensein eines Wickels detektiert und der Steuereinrichtung dieses signalisiert. Mit der Steuervorrichtung wird nun der Sender 116 deaktiviert bzw. die Deaktivierung beibehalten, solange sich der Wickel im Erkennungsbereich des Wickels 123 befindet. Erst wenn der Wickel entfernt worden ist, wird dies vom Sensor 121 erkannt, so dass der Sender 116 aktiviert wird. Da dies automatisch, also ohne eine Steuerung durch den Bediener erfolgt, ist der Sender 116 aktiv, wenn der Bediener die Wickelwelle mit einer neuen, leeren Wickelhülse 106 bestückt. Bezugszeichenliste 101 Wendewickler 102 Wickelwelle 103 Wickelwelle 104, 104' Drehscheibe 105 Wickelhülse 106 Wickelhülse 107 Wickel 108 Bahn 109 Kontaktwalze 110 Linearführung 111 Maschinengestell 112 Andrückwalze 113 Schwenkarm 114 Schwenklager 115 Schutz 116 Sender 117 Arbeitsplattform 120 Walzenspalt 121 Sensor 122 Maschinengestell 123 Wickel W Drehrichtung des Wickels D Drehrichtung der Drehscheibe The figure 3 shows the situation after another lap change, which is carried out in the same way as the lap change, which is based on the transition from the figure 1 to the figure 2 was explained. The winding 123 is here in a position in which it is removed by the operating personnel Winding device can be removed. However, this winding 123 covered in the figure 1 sensor 121 shown. This means that this sensor detects the presence of a roll and signals this to the control device. With the control device, the transmitter 116 is now deactivated or the deactivation is maintained as long as the roll is in the recognition range of the roll 123 . Only when the roll has been removed is this recognized by the sensor 121, so that the transmitter 116 is activated. Since this takes place automatically, that is to say without any control by the operator, the transmitter 116 is active when the operator equips the winding shaft with a new, empty winding core 106 . Reference List 101 turret winder 102 winding shaft 103 winding shaft 104, 104' turntable 105 winding sleeve 106 winding sleeve 107 wrap 108 Rail 109 contact roller 110 linear guide 111 machine frame 112 pressure roller 113 swivel arm 114 swivel bearing 115 Protection 116 Channel 117 working platform 120 nip 121 sensor 122 machine frame 123 wrap W direction of rotation of the coil D direction of rotation of the turntable

Claims (8)

  1. A reversing winder (101) for the successive winding of a web onto a plurality of rolls, in which the first winding shaft (102) and at least one second winding shaft (103) are provided,
    wherein the first and second winding shafts (102, 103) are carried by their ends by two rotation devices (104),
    wherein a pressure roller (112) is mounted on at least one of the ends thereof in at least one movement device (113, 114), with which the pressure roller (112) can be moved relative to the first and the at least second winding shaft (102, 103), wherein the movement device (113, 114) is arranged on one of the rotation devices (104)
    characterized in
    that a plate-, grid- or net-shaped element (115) is arranged on the at least one movement device (113, 114) and
    that at least one transmitter (116) for transmitting and/or at least one receiver for receiving electromagnetic radiation is directly or indirectly arranged on at least one of the rotation devices (104).
  2. The reversing winder (101) according to claim 1,
    characterized in that
    with the plate-, grid- or net-shaped element (115) and with the optionally present electromagnetic radiation, the space between the first winding shaft (102) and the second winding shaft (103) can be shielded in order to prevent a person or an object from passing through.
  3. The reversing winder (101) according to claim 1,
    characterized in that
    the transmitter (116) and/or the receiver has an elongated shape.
  4. The reversing winder (101) according to any of the preceding claims,
    characterized in that
    the plate-, grid- or net-shaped element (115) lies on one side and the transmitter (116) and/or receiver lies on the other side of an imaginary plane, spanned by the first and the second winding shaft (102, 103).
  5. The reversing winder (101) according to any one of the preceding claims,
    characterized in that
    a pivot bearing (114) is provided as a movement device, wherein the pivot bearing (114) and the transmitter (116) and/or the receiver lie on a plane, which lies orthogonally to the plane spanned by the first and the second winding shaft (102, 103) and runs parallel to the first and the second winding shaft.
  6. The reversing winder (101) according to any one of the preceding claims,
    characterized in
    that the transmitter (116) is arranged on one of the rotation devices (104) and
    that the receiver is arranged on the other of the rotation devices (104').
  7. The reversing winder (101) according to any one of the preceding claims
    characterized in that
    at least one further transmitter for transmitting and/or receiver for receiving electromagnetic radiation is arranged on a machine frame (111), in which the rotation devices (104, 104') are rotatably mounted.
  8. A method for operating a reversing winder (101) according to any one of the preceding claims 1 to 7,
    characterized in
    that a roller gap is covered with a plate-, grid- or net-shaped element (115) arranged on the at least one pivot arm (113) and
    that optionally the roller gap (120) is additionally monitored by at least one transmitter (116) for transmitting and/or receiver for receiving electromagnetic radiation arranged at least on one of the rotation devices (104, 104').
EP18825668.9A 2017-12-20 2018-12-18 Reversing winder and method for operating a reversing winder Active EP3728090B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017223449 2017-12-20
PCT/EP2018/085515 WO2019121695A1 (en) 2017-12-20 2018-12-18 Reversing winder and method for operating a reversing winder

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EP3728090A1 EP3728090A1 (en) 2020-10-28
EP3728090B1 true EP3728090B1 (en) 2023-04-19

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ES (1) ES2944435T3 (en)
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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6588698B2 (en) * 2001-11-26 2003-07-08 Gl&V Management Hungary Kft Winding machine including a finger sensor adjacent the nip formed between a support drum and a web reel
US6616085B2 (en) * 2002-02-12 2003-09-09 Metso Paper, Inc. Winder splicing nip guard
JP3979954B2 (en) * 2003-03-06 2007-09-19 日本輸送機株式会社 Winder sheet pulling device
DE102005048465A1 (en) * 2005-10-07 2007-04-12 Man Roland Druckmaschinen Ag Guard against fragments of a roller sleeve on a reel changer of a printing machine
DE102006008104A1 (en) * 2006-02-20 2007-10-18 Koenig & Bauer Aktiengesellschaft Device for covering a danger zone on a reel changer and a method for controlling a device
DE102014214335B4 (en) 2014-07-23 2020-07-09 Windmöller & Hölscher Kg Winding device for winding a web-shaped material

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ES2944435T3 (en) 2023-06-21
EP3728090A1 (en) 2020-10-28

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