EP2977341B1 - Positioning roller for a printing machine - Google Patents
Positioning roller for a printing machine Download PDFInfo
- Publication number
- EP2977341B1 EP2977341B1 EP15175252.4A EP15175252A EP2977341B1 EP 2977341 B1 EP2977341 B1 EP 2977341B1 EP 15175252 A EP15175252 A EP 15175252A EP 2977341 B1 EP2977341 B1 EP 2977341B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- winding core
- web
- shaped material
- core
- 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.)
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Links
- 238000004804 winding Methods 0.000 claims description 205
- 239000000463 material Substances 0.000 claims description 76
- 238000003825 pressing Methods 0.000 claims description 67
- 230000005484 gravity Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 208000027418 Wounds and injury Diseases 0.000 description 19
- 230000008859 change Effects 0.000 description 16
- 230000008901 benefit Effects 0.000 description 15
- 230000001681 protective effect Effects 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
Images
Classifications
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- 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
- B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
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- 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
- B65H19/2207—Changing the web roll in winding mechanisms or in connection with winding operations the web roll being driven by a winding mechanism of the centre or core drive type
- B65H19/2215—Turret-type with two roll supports
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- 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
- B65H2408/2315—Turret winders specified by number of arms
- B65H2408/23152—Turret winders specified by number of arms with two arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/30—Forces; Stresses
- B65H2515/34—Pressure, e.g. fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2601/00—Problem to be solved or advantage achieved
- B65H2601/20—Avoiding or preventing undesirable effects
- B65H2601/22—Gravity effects, e.g. effect of weight of handled material
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- 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
- B65H2801/03—Image reproduction devices
- B65H2801/21—Industrial-size printers, e.g. rotary printing press
Definitions
- the present invention relates to a winding device for winding a web-shaped material in a printing press according to the preamble of claim 1.
- Web-shaped material such as plastic film or paper
- Web-shaped material is usually printed on one or both sides of printing presses and then wound on a film roll or a paper roll.
- these windings are formed by winding the web-like material onto a winding core. Before the web-like material is wound up on this winding core or on the winding on which already web-shaped material is wound up, it is often guided over a web guide roll.
- This web guide roller can be arranged at a small distance from the winding core or to the winding or press the web-like material directly to the winding core or the winding.
- the winding device is then referred to as a contact winder.
- said web guide roll is typically the last roll over which the web-shaped material passes before or while it reaches the winding core or reel.
- the winding is often associated with a pressing element, which is designed to be adjustable to the winding.
- This pressure element is usually designed as a pressure roller.
- Known winding devices comprise mechanical pressing elements, which are arranged displaceably by means of slides on mutually parallel rails. These pressing elements are preferably used in so-called turret winder.
- Turret winder describe a type of winding devices in which the winding core and the mechanism for adjusting the pressure element are attached to disks or plates, which in turn are rotatably mounted in a machine frame. At least a second winding core is mounted and fastened to these disks or plates. In particular, after an angle has been completed, a turret winder serves to rapidly bend the new web start formed by a cut on the second winding core.
- the publication WO 2008/043748 A1 discloses a winding device in the form of a turret winder for winding a web-shaped material comprising a winding core on which the web-shaped material can be wound into a material roll, and a web guide roll guiding the web-like material before or while it reaches the winding core or the material roll , And a pressing member, which presses the sheet-like material to the winding core or the winding after it already rests on the winding core or the winding, wherein a pressure roller is movable relative to the winding core.
- the pressure element is mounted at both ends in a lever pair forming lever arms, which are rotatably mounted, so that the pressure roller is pivotable about the bearing points of the lever arms.
- Another winding device in the form of a Wendewicklers is in US 4971 263 according to the preamble of claim 1 disclosed.
- a disadvantage of this type hiring the pressure roller in a turning winder to the winding core is that during the phase in which the turret winder has wrapped a winding, and for the purpose of speedy Anwickelns the second roll, the disc or plate to a storage in the machine frame rotates, the pressing member is exposed depending on the rotational position of the disc or plate between the first winding and the second winding of its own gravity.
- the pressing force of the pressing element depending on the rotational position of the disc, is exposed to fluctuations caused by the force of gravity, which on the Pressing element acts, caused.
- this phase of the change from a first to a second winding air pockets in the roll of the printed web-shaped material are produced.
- the object of the present invention is to propose a winding device in which air pockets in the winding of the web-shaped material are reduced.
- the object is achieved by a winding device for winding a web-shaped material, preferably in a printing press with a first winding core on which the web-shaped material can be wound into a material roll, wherein the first winding core is pivotable about a rotation axis, a web guide roll , which is adapted to guide the web-shaped material during winding on the first winding core, and a pressure element which presses the wound on the first winding core web material with an adjustable pressing force, wherein the pressing member when pivoting the first winding core about the axis of rotation Pressing force on the web-shaped material of the first winding core keeps constant, with a control is provided, with which at a detected pivot angle of the winding core, an E / P converter is controlled, with which an adaptation of the pressing force du is feasible, wherein an electrical signal is converted into a pneumatic signal to compensate for the effects of gravity on the pressure element in a changing pivot position.
- the technical advantage is achieved that the pressing force of the pressing element, regardless of the pivot position of the winding core, is constant. As a consequence, air pockets can be avoided. This is particularly relevant during the change from a first to a second winding of particular relevance when the winding device has wound the first winding, and for the purpose of swiftly wrapping the second roll without stopping the printing press, the first winding about the axis of rotation or warehousing pivots in the machine frame until the winding of the second roll can be done.
- the pressing element comprises a pneumatic control, namely an E / P converter, for controlling the pressing force.
- a pneumatic control namely an E / P converter
- the E / P converter can, based on a detected pivoting angle of the winding core, are controlled by a controller and allows a rapid and rapid adaptation of the pressing force, where it converts an electrical signal into a pneumatic signal.
- the pressing element comprises a rotationally driven pressure roller, the peripheral speed of which can be set to the peripheral speed of the winding core and / or of the material roll.
- the pressure roller has elastic surface properties in order to compensate for differences in thickness of the sheet material.
- the technical advantage is achieved that caused by unevenly applied to the sheet material color ink thickness differences are not compensated mechanically by the pressure roller. As a consequence, damage to the web-like material can thus be prevented, since the pressure roller can adapt to the differences in thickness due to its elastic surface properties.
- the pressing element comprises a linear drive with a rodless cylinder.
- the winding device comprises a second winding core, which is designed to be pivotable about the axis of rotation.
- the technical advantage is achieved that the printing press does not need to be stopped when changing from a first winding core to a second winding core.
- the second winding core is formed pivotable about the identical axis of rotation as the first winding core, a non-delays change from the first winding core to the second winding core. This is particularly important in connection with the gravity-compensating pressure element of particular importance.
- the pressing element is designed to be movable horizontally between the first winding core and the second winding core in order to be able to come into contact with the first winding core or the second winding core.
- the pressing element comprises a hydraulic control.
- the first winding core and the second winding core are each assigned a drive which is adapted to exert a drive torque on the first winding core and the second winding core.
- the winding device comprises a further pressing element which is adapted to exert a pressing force on the wound web-shaped material of the first winding core or of the second winding core independently of the first pressing element.
- the technical advantage is achieved that the pressing force is additionally improved by the further pressing element. This can be done both in the form that both pressing elements simultaneously act on a winding core, as well as in the form that the further pressing element acts just during the change from the first winding core to the second winding core supportive. As a consequence, air pockets can be additionally avoided.
- At least one further web guide roller is provided.
- the axis of rotation is mounted in a machine frame.
- the technical advantage is achieved that the entire winding device can be pivoted about the axis of rotation. This allows that at the time when the winding device has finished wound the first winding, and then the second winding is to be wound, this change without a Stop the printing machine can be done by the entire winding device is pivoted about the axis of rotation.
- the winding device comprises a protective device in order to prevent intervention in the winding nip of the pressure elements and / or the web guide rollers.
- a protective device in order to prevent intervention in the winding nip of the pressure elements and / or the web guide rollers.
- the protective device comprises a plurality of partial protection elements, which are designed to be displaceable relative to one another.
- the technical advantage is achieved that the protective device continuously prevents the intervention or the penetration of objects into the winding device even during the change from the first winding core to the second winding core.
- the protective device also remains continuous even when the pressure element is transferred from the first winding core to the second winding core.
- a method for winding a web-shaped material preferably in a printing machine, described in which the web-like material is wound on a first winding core to a material roll, wherein the first winding core is pivotable about a rotation axis, the web-shaped material wound on the first winding core is guided by a web guide roller, and wound on the first winding core web-shaped material is pressed by a pressure element with a pressing force, wherein the pressing member during pivoting of the first winding core to the Rotation axis keeps the pressure force on the web-shaped material of the first winding core constant and compensates for the effects of gravity on the pressure element with changing pivot position.
- the technical advantage is achieved that the pressing force of the pressing element, regardless of the pivot position of the winding core, remains the same. As a consequence, air pockets can be avoided. This is particularly relevant during the change from a first to a second winding of particular relevance, when the winding device has wound the first winding and for the purpose of rapidly winding the second roll, without stopping the printing press, the first winding about the axis of rotation or the storage in the machine frame pivots until the winding of the second roll can be done.
- FIG. 1 A schematic side view of a printing press with a winding device
- Fig. 2 A schematic side view of a winding device according to the invention during the winding operation
- Fig. 3 A schematic view of the in Fig. 2 drawn section II - II
- FIG. 1 Figure 11 shows a schematic side view of a web 100 printing machine 100.
- Web material 103 is typically made in a webmaking apparatus, such as an extrusion apparatus, and wound into a stock roll. Such Rushmaterialwickel be subsequently for further processing or for printing in a in Fig. 1 illustrated printing machine 100 or clamped in an unwinding station 105 of the printing machine 100.
- the web-shaped material 103 is fed from the unwinding 105 via numerous guide rollers a printing unit 107, in which the web-shaped material 103 finally one-sided or if necessary, printed on both sides.
- the sheet-like material 103 After the sheet-like material 103 has left the printing unit 107, it is passed through a drying device 109 and finally wound up in a winding device 101 according to the invention to form a material roll 207.
- a drying device 109 After the sheet-like material 103 has left the printing unit 107, it is passed through a drying device 109 and finally wound up in a winding device 101 according to the invention to form a material roll 207.
- Fig. 2 shows a schematic side view of a winding device 101 according to the invention during the winding operation.
- the sheet-like material 103 which is supplied in the direction 219 of the winding device 101, fed via a web guide roller 211 a first winding core 205 and wound into a material roll 207.
- the web guide roller 211 is located in the immediate vicinity of the material roll 207.
- the web guide roll 211 can also rest directly on the material roll 207 in order to additionally improve the feed.
- the web guide roller 211 may optionally include additional elements that allow movement of the web guide roller 211 relative to the winding core 205.
- one or more additional web guide rollers are conceivable, which are arranged at suitable positions in order to ensure optimum feeding of the web-like material.
- the first winding core 205 is rotatably disposed at both ends between two parallel disks or plates 221, wherein in Fig. 2 only the rear of the two discs 221 is shown.
- the discs 221 are in turn rotatably supported by a rotation axis 209 in a machine frame (not shown).
- the rotation axis 209 thus serves as a pivot axis for the first winding core 205, which is arranged between the disks 221.
- This second hub 215 is the first hub 205 with respect to the axis of rotation 209 arranged opposite and like the first hub 205 at both ends rotatably mounted between the two parallel discs 221.
- the first winding core 205 can be pivoted away from the web guide roller 211 and the second winding core 215 can be pivoted to the web guide roller 211.
- the web-shaped material 103 can be severed by a cutting device, not shown, whereby a new web start is created.
- This new web start can now be determined by a suitable means - for example, an adhesive - on the second winding core 215 to allow Anwickeln the web start on the second winding core 215.
- the second winding core 215 assumes the original position of the first winding core 205.
- the old material roll 207 can be removed from the winding device 101 and replaced by an empty winding core. In this way, without the winding device 101 or the printing press 100 having to be stopped because of the change of the winding core, a new material winding is produced.
- a pressing element 213 is arranged, which acts with an adjustable pressing force on the first winding 205 and the material winding 207 to prevent air pockets in the material winding 207.
- the pressing force of the pressing element 213 is also maintained constant when the winding device 101 or the first winding core 205 is pivoted or pivoted by pivoting the disks 221 about the rotation axis 209 in the machine frame. This is regularly the case when it has to be changed from the first winding core 205 to a second winding core 215.
- the first winding core 205 is pivoted away and the second winding core 215 pivots about the rotation axis 209, while the web-shaped material 103 continues to move the first winding core 205 is wound up.
- air inclusions continue to be prevented by the constant action of the pressing element 213 on the first material roll 207, which continues to act, and which adapts to the current pivot angle.
- This can be done using a pneumatic controller and in particular with an E / P converter, whereby a very precise control of the pressing force of the pressing member 213 can be achieved on the material roll 207.
- control can also be effected by other means which are suitable for compensating for the influence of gravity on the pressure element 213 by a constant pressure force on the material roll 207 even during the change from the first winding core 205 to the second winding core 215 to realize.
- the old material winding 207 can be removed from the winding device 101 and replaced by an empty winding core.
- the pressing element 213 is then transferred along two parallel rails 223 to the opposite - meanwhile wound - second winding core 215 in order to apply the set pressing force to the material winding of the second winding core 215.
- both pressing elements could simultaneously act on the material roll 207 and the further pressure element could act on the second winding core 215 even from the beginning of the Anwickelns of the second winding core 215 on this with a pressing force, in particular during the change from the first winding core 205 to the second winding core 215, while the first pressure element 213 still acts on the material winding 207 of the first winding core 205.
- the pressing member 213 may comprise a rotationally driven pressure roller to adjust the peripheral speed of the pressure roller to the peripheral speed of the first hub 205 and / or the material roll 207.
- the peripheral speed of the pressing member 213 does not become first in contact with a winding core achieved by the rotation of the hub itself, but is already adjustable before coming into contact with a winding core.
- the pressure roller could have elastic surface properties to compensate for differences in thickness of the sheet material 103. These can be caused in particular by uneven or irregularly applied to the web-shaped material 103 color, but are not compensated mechanically by the elastic surface properties of the pressure roller. This can prevent damage to the web-shaped material.
- the pressing element 213 can be driven, for example, by a hydraulic control.
- the controller could be flexibly and space-saving adapted to the structural conditions of the winding device, which is also feasible with simple and easily available, reliable and inexpensive standard components.
- first winding core 205 and the second winding core 215 may each be provided with a drive that applies driving torque to the first winding core 205 and the second winding core 215. This would bring about a precise adjustability of the rotational speed of the winding cores, which could be particularly important during the change from the first winding core 205 to the second winding core 215, since the change of the winding cores would be particularly precise and exactly coordinated.
- a protective device 217 which extends above and below the pressing member 213 in the radial direction.
- Both the above and below the pressing member 213 lying part of the protective device 217 has partial protection elements, which are designed to be mutually displaceable. Now, if the position of the pressing member 213 due to the increasing in amount material coil 207 or due to a movement of the pressing member 213 from the first winding core 205 to the second winding core 215 arranged on the parallel Rails moved 223, the part protection elements move against each other so that an intervention in the winding nip of the pressing member 213 and / or the web guide rollers and penetration of objects or foreign bodies is excluded.
- Fig. 3 shows a schematic view of the in Fig. 2 between the slices 221 arranged in parallel, the axis of rotation 209 and the pressing element 213 displaceably arranged laterally on parallel rails 223 are shown, which above and below the partial protection elements of the protective device 217 are prevented from engaging in the winding gap of the pressure element 213 and / or the web guide rollers is protected.
Landscapes
- Replacement Of Web Rolls (AREA)
- Winding Of Webs (AREA)
Description
Die vorliegende Erfindung betrifft eine Wickelvorrichtung zum Aufwickeln eines bahnförmigen Materials in einer Druckmaschine nach dem Oberbegriff des Anspruchs 1.The present invention relates to a winding device for winding a web-shaped material in a printing press according to the preamble of claim 1.
Bahnförmiges Material, wie beispielsweise Kunststofffolie oder Papier, wird üblicherweise in Druckmaschinen ein- oder beidseitig bedruckt und anschließend auf einen Folienwickel oder einen Papierwickel aufgewickelt. Häufig werden diese Wickel dadurch gebildet, dass das bahnförmige Material auf einen Wickelkern aufgewickelt wird. Bevor das bahnförmige Material auf diesen Wickelkern beziehungsweise auf den Wickel, auf dem bereits bahnförmiges Material aufgewickelt ist, aufgewickelt wird, wird es häufig über eine Bahnführungswalze geführt.Web-shaped material, such as plastic film or paper, is usually printed on one or both sides of printing presses and then wound on a film roll or a paper roll. Often, these windings are formed by winding the web-like material onto a winding core. Before the web-like material is wound up on this winding core or on the winding on which already web-shaped material is wound up, it is often guided over a web guide roll.
Diese Bahnführungswalze kann in einem geringen Abstand zu dem Wickelkern beziehungsweise zu dem Wickel angeordnet sein oder das bahnförmige Material direkt an den Wickelkern oder den Wickel andrücken. Im letzteren Fall wird die Wickelvorrichtung dann als Kontaktwickler bezeichnet. Jedoch ist in beiden Fällen die genannte Bahnführungswalze in der Regel die letzte Walze, über die das bahnförmige Material geführt wird, bevor oder während es den Wickelkern oder den Wickel erreicht. Um Lufteinschlüsse zwischen dem Wickelkern beziehungsweise dem Wickel und der neuen Lage des bahnförmigen Materials zu vermeiden, ist dem Wickel häufig ein Andrückelement zugeordnet, welches an den Wickel anstellbar ausgebildet ist. Dieses Andrückelement ist in der Regel als Andrückwalze ausgebildet.This web guide roller can be arranged at a small distance from the winding core or to the winding or press the web-like material directly to the winding core or the winding. In the latter case, the winding device is then referred to as a contact winder. However, in both cases, said web guide roll is typically the last roll over which the web-shaped material passes before or while it reaches the winding core or reel. In order to avoid air pockets between the winding core or the winding and the new layer of the web-like material, the winding is often associated with a pressing element, which is designed to be adjustable to the winding. This pressure element is usually designed as a pressure roller.
Bekannte Wickelvorrichtungen umfassen mechanische Andrückelemente, welche mittels Schlitten an zueinander parallel verlaufenden Schienen verschiebbar angeordnet sind. Diese Andrückelemente werden bevorzugt auch in sogenannten Wendewicklern eingesetzt. Wendewickler beschreiben eine Art von Wickelvorrichtungen, bei welchen der Wickelkern und die Mechanik zum Anstellen des Andrückelements an Scheiben oder Platten befestigt sind, welche wiederum drehbar in einem Maschinengestell gelagert sind. An diesen Scheiben oder Platten ist zumindest ein zweiter Wickelkern gelagert und befestigt. Ein Wendewickler dient insbesondere, nachdem ein Winkel fertig gewickelt wurde, dem zügigen Anwinkeln des durch einen Schnitt gebildeten neuen Bahnanfangs auf dem zweiten Wickelkern.Known winding devices comprise mechanical pressing elements, which are arranged displaceably by means of slides on mutually parallel rails. These pressing elements are preferably used in so-called turret winder. Turret winder describe a type of winding devices in which the winding core and the mechanism for adjusting the pressure element are attached to disks or plates, which in turn are rotatably mounted in a machine frame. At least a second winding core is mounted and fastened to these disks or plates. In particular, after an angle has been completed, a turret winder serves to rapidly bend the new web start formed by a cut on the second winding core.
Die Druckschrift
Nachteilig bei dieser Art, die Andrückwalze bei einem Wendewickler an den Wickelkern anzustellen, ist, dass während der Phase, in welcher der Wendewickler einen Wickel fertig gewickelt hat, und zum Zweck des zügigen Anwickelns des zweiten Wickels die Scheibe oder Platte um eine Lagerung im Maschinengestell dreht, das Andrückelement in Abhängigkeit der Drehposition der Scheibe oder Platte zwischen dem ersten Wickel und dem zweiten Wickel seiner eigenen Schwerkraft ausgesetzt ist. Dadurch ist die Andrückkraft des Andrückelements, in Abhängigkeit von der Drehposition der Scheibe, Schwankungen ausgesetzt, die durch die Schwerkraft, welche auf das Andrückelement einwirkt, verursacht werden. In der Konsequenz kommt es in dieser Phase des Wechsels von einem ersten auf einen zweiten Wickel zu Lufteinschlüssen im Wickel des bedruckten bahnförmigen Materials.A disadvantage of this type, hiring the pressure roller in a turning winder to the winding core is that during the phase in which the turret winder has wrapped a winding, and for the purpose of speedy Anwickelns the second roll, the disc or plate to a storage in the machine frame rotates, the pressing member is exposed depending on the rotational position of the disc or plate between the first winding and the second winding of its own gravity. As a result, the pressing force of the pressing element, depending on the rotational position of the disc, is exposed to fluctuations caused by the force of gravity, which on the Pressing element acts, caused. As a consequence, in this phase of the change from a first to a second winding, air pockets in the roll of the printed web-shaped material are produced.
Die Aufgabe der vorliegenden Erfindung ist es, eine Wickelvorrichtung vorzuschlagen, bei der Lufteinschlüsse im Wickel des bahnförmigen Materials reduziert werden.The object of the present invention is to propose a winding device in which air pockets in the winding of the web-shaped material are reduced.
Diese Aufgabe wird durch den Gegenstand mit den Merkmalen nach dem unabhängigen Anspruch gelöst. Vorteilhafte Ausführungsformen der Erfindung sind Gegenstand der Figuren, der Beschreibung und der abhängigen Ansprüche.This object is achieved by the subject matter having the features of the independent claim. Advantageous embodiments of the invention are the subject of the figures, the description and the dependent claims.
Gemäß einem Aspekt der Erfindung wird die Aufgabe durch eine Wickelvorrichtung zum Aufwickeln eines bahnförmigen Materials, vorzugsweise in einer Druckmaschine mit einem ersten Wickelkern, auf welchen das bahnförmige Material zu einem Materialwickel aufwickelbar ist, wobei der erste Wickelkern um eine Rotationsachse schwenkbar ausgebildet ist, einer Bahnführungswalze, welche dazu eingerichtet ist, das bahnförmige Material beim Aufwickeln auf den ersten Wickelkern zu führen, und einem Andrückelement gelöst, welches das auf den ersten Wickelkern aufgewickelte bahnförmige Material mit einer einstellbaren Andrückkraft andrückt, wobei das Andrückelement beim Schwenken des ersten Wickelkerns um die Rotationsachse die Andrückkraft auf das bahnförmige Material des ersten Wickelkerns konstant hält, wobei eine Steuerung vorgesehen ist, mit welcher bei einem festgestellten Schwenkwinkel des Wickelkerns ein E/P-Wandler ansteuerbar ist, mit welchem eine Adaption der Andrückkraft durchführbar ist, wobei ein elektrisches Signal in ein pneumatisches Signal gewandelt ist, um die Auswirkungen der Schwerkraft auf das Andrückelement bei sich ändernder Schwenkposition zu kompensieren. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Andrückkraft des Andrückelements, unabhängig von der Schwenkposition des Wickelkerns, gleichbleibend ist. In der Konsequenz können Lufteinschlüsse vermieden werden. Dies ist insbesondere während des Wechsels von einem ersten auf einen zweiten Wickel von besonderer Relevanz, wenn die Wickelvorrichtung den ersten Wickel fertig gewickelt hat, und zum Zweck des zügigen Anwickelns des zweiten Wickels ohne ein Anhalten der Druckmaschine, den ersten Wickel um die Rotationsachse bzw. die Lagerung im Maschinengestell schwenkt, bis das Anwickeln des zweiten Wickels erfolgen kann.According to one aspect of the invention, the object is achieved by a winding device for winding a web-shaped material, preferably in a printing press with a first winding core on which the web-shaped material can be wound into a material roll, wherein the first winding core is pivotable about a rotation axis, a web guide roll , which is adapted to guide the web-shaped material during winding on the first winding core, and a pressure element which presses the wound on the first winding core web material with an adjustable pressing force, wherein the pressing member when pivoting the first winding core about the axis of rotation Pressing force on the web-shaped material of the first winding core keeps constant, with a control is provided, with which at a detected pivot angle of the winding core, an E / P converter is controlled, with which an adaptation of the pressing force du is feasible, wherein an electrical signal is converted into a pneumatic signal to compensate for the effects of gravity on the pressure element in a changing pivot position. As a result, for example, the technical advantage is achieved that the pressing force of the pressing element, regardless of the pivot position of the winding core, is constant. As a consequence, air pockets can be avoided. This is particularly relevant during the change from a first to a second winding of particular relevance when the winding device has wound the first winding, and for the purpose of swiftly wrapping the second roll without stopping the printing press, the first winding about the axis of rotation or warehousing pivots in the machine frame until the winding of the second roll can be done.
Gemäß der Erfindung umfasst das Andrückelement eine pneumatische Steuerung, nämlich einen E/P-Wandler, zum Steuern der Andrückkraft. Dadurch wird beispielsweise der technische Vorteil erreicht, dass eine sehr präzise Steuerung der Andrückkraft des Andrückelements auf den Wickelkern erreicht werden kann. Der E/P-Wandler kann, ausgehend von einem festgestellten Schwenkwinkel des Wickelkerns, von einer Steuerung angesteuert werden und ermöglicht eine zügige und schnelle Adaption der Andrückkraft, wobei er ein elektrisches Signal in ein pneumatisches Signal wandelt.According to the invention, the pressing element comprises a pneumatic control, namely an E / P converter, for controlling the pressing force. As a result, for example, the technical advantage is achieved that a very precise control of the pressing force of the pressing element can be achieved on the winding core. The E / P converter can, based on a detected pivoting angle of the winding core, are controlled by a controller and allows a rapid and rapid adaptation of the pressing force, where it converts an electrical signal into a pneumatic signal.
In einer weiteren nicht beanspruchten Ausführungsform umfasst das Andrückelement eine drehangetriebene Anpresswalze, deren Umfangsgeschwindigkeit auf die Umfangsgeschwindigkeit des Wickelkerns und/oder des Materialwickels einstellbar ist. Dadurch wird beispielsweise der technische Vorteil erreicht, dass sich die Umfangsgeschwindigkeit der Anpresswalze bei In-Kontakt-Treten mit dem Wickelkern nicht erst durch die Rotation des Wickelkerns anpasst, sondern bereits vor dem In-Kontakt-Treten mit dem Wickelkern einstellbar ist. In der Konsequenz werden Verschleißeffekte sowohl am bahnförmigen Material als auch an der Anpresswalze reduziert.In a further embodiment not claimed, the pressing element comprises a rotationally driven pressure roller, the peripheral speed of which can be set to the peripheral speed of the winding core and / or of the material roll. As a result, the technical advantage is achieved, for example, that the peripheral speed of the pressure roller when in contact with the winding core does not fit first by the rotation of the winding core, but is adjustable before contacting with the winding core. As a consequence, wear effects on both the web-shaped material and on the pressure roller are reduced.
In einer weiteren nicht beanspruchten Ausführungsform weist die Anpresswalze elastische Oberflächeneigenschaften auf, um Dickenunterschiede des bahnförmigen Materials auszugleichen. Dadurch wird beispielsweise der technische Vorteil erreicht, dass durch ungleichmäßig auf das bahnförmige Material aufgebrachte Farbe verursachte Dickenunterschiede nicht mechanisch durch die Anpresswalze ausgeglichen werden. In der Konsequenz können somit Beschädigungen am bahnförmigen Material verhindert werden, da sich die Anpresswalze durch ihre elastischen Oberflächeneigenschaften an die Dickenunterschiede anpassen kann.In a further embodiment not claimed, the pressure roller has elastic surface properties in order to compensate for differences in thickness of the sheet material. As a result, for example, the technical advantage is achieved that caused by unevenly applied to the sheet material color ink thickness differences are not compensated mechanically by the pressure roller. As a consequence, damage to the web-like material can thus be prevented, since the pressure roller can adapt to the differences in thickness due to its elastic surface properties.
In einer weiteren vorteilhaften Ausführungsform umfasst das Andrückelement einen Linearantrieb mit einem kolbenstangenlosen Zylinder. Dadurch wird beispielsweise der technische Vorteil erreicht, dass das Andrückelement besonders einfach und unter Einsatz von leicht verfügbaren, zuverlässigen und kostengünstigen Standardbauteilen realisiert werden kann.In a further advantageous embodiment, the pressing element comprises a linear drive with a rodless cylinder. As a result, for example, the technical advantage is achieved that the pressure element can be realized particularly easily and using readily available, reliable and inexpensive standard components.
In einer weiteren nicht beanspruchten Ausführungsform umfasst die Wickelvorrichtung einen zweiten Wickelkern, welcher um die Rotationsachse schwenkbar ausgebildet ist. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Druckmaschine bei einem Wechsel von einem ersten Wickelkern auf einen zweiten Wickelkern nicht angehalten zu werden braucht. Dadurch, dass der zweite Wickelkern um die identische Rotationsachse schwenkbar wie der erste Wickelkern ausgebildet ist, kann ein verzugsloser Wechsel von dem ersten Wickelkern auf den zweiten Wickelkern erfolgen. Dies ist insbesondere im Zusammenhang mit dem schwerkraftkompensierenden Andrückelement von besonderer Bedeutung.In a further embodiment not claimed, the winding device comprises a second winding core, which is designed to be pivotable about the axis of rotation. As a result, for example, the technical advantage is achieved that the printing press does not need to be stopped when changing from a first winding core to a second winding core. Characterized in that the second winding core is formed pivotable about the identical axis of rotation as the first winding core, a non-delays change from the first winding core to the second winding core. This is particularly important in connection with the gravity-compensating pressure element of particular importance.
In einer weiteren nicht beanspruchten Ausführungsform ist das Andrückelement horizontal zwischen dem ersten Wickelkern und dem zweiten Wickelkern bewegbar ausgebildet, um mit dem ersten Wickelkern oder dem zweiten Wickelkern in Kontakt treten zu können. Dadurch wird beispielsweise der technische Vorteil erreicht, dass das Andrückelement während des Wechsels von dem ersten Wickelkern zu dem zweiten Wickelkern oder umgekehrt jeweils nur den kürzesten Weg zwischen den Wickelkernen beschreiten muss. In der Konsequenz erfolgt der Wechsel von dem ersten Wickelkern zu dem zweiten Wickelkern schnell und zuverlässig.In a further embodiment not claimed, the pressing element is designed to be movable horizontally between the first winding core and the second winding core in order to be able to come into contact with the first winding core or the second winding core. As a result, the technical advantage is achieved, for example, that the pressure element during the change from the first winding core to the second winding core or vice versa in each case only has to take the shortest path between the winding cores. As a consequence, the change from the first winding core to the second winding core is fast and reliable.
In einer weiteren vorteilhaften Ausführungsform umfasst das Andrückelement eine hydraulische Steuerung. Dadurch wird beispielsweise der technische Vorteil erreicht, dass das Andrückelement flexibel und Platz sparend an die baulichen Gegebenheiten der Wickelvorrichtungen angepasst werden kann. Zudem kann dies mit einfachen und leicht verfügbaren, zuverlässigen und kostengünstigen Standardbauteilen realisiert werden.In a further advantageous embodiment, the pressing element comprises a hydraulic control. As a result, for example, the technical advantage is achieved that the pressure element can be flexibly and space-saving adapted to the structural conditions of the winding devices. In addition, this can be realized with simple and readily available, reliable and inexpensive standard components.
In einer weiteren nicht beanspruchten Ausführungsform ist dem ersten Wickelkern und dem zweiten Wickelkern jeweils ein Antrieb zugeordnet, der dazu eingerichtet ist, ein Antriebsdrehmoment auf den ersten Wickelkern und den zweiten Wickelkern auszuüben. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Rotationsgeschwindigkeit der Wickelkerne präzise einstellbar ist und insbesondere während des Wechsels von dem ersten Wickelkern zu dem zweiten Wickelkern angepasst bzw. reduziert werden kann. In der Konsequenz kann der Wechsel der Wickelkerne besonders präzise und exakt koordiniert verlaufen, was eine verbesserte Produktqualität des bahnförmigen Materials zur Folge hat.In a further embodiment not claimed, the first winding core and the second winding core are each assigned a drive which is adapted to exert a drive torque on the first winding core and the second winding core. As a result, the technical advantage is achieved, for example, that the rotational speed of the winding cores is precisely adjustable and can be adapted or reduced in particular during the change from the first winding core to the second winding core. As a consequence, the change of the winding cores can be particularly precise and exactly coordinated, resulting in an improved product quality of the web-like material.
In einer weiteren nicht beanspruchten Ausführungsform umfasst die Wickelvorrichtung ein weiteres Andrückelement, welches dazu eingerichtet ist, unabhängig von dem ersten Andrückelement auf das aufgewickelte bahnförmige Material des ersten Wickelkerns oder des zweiten Wickelkerns eine Andrückkraft auszuüben. Dadurch wird beispielsweise der technische Vorteil erreicht, dass durch das weitere Andrückelement die Andrückkraft zusätzlich verbessert wird. Dies kann sowohl in der Form erfolgen, dass beide Andrückelemente gleichzeitig auf einen Wickelkern einwirken, als auch in der Form, dass das weitere Andrückelement gerade während des Wechsels von dem ersten Wickelkern auf den zweiten Wickelkern unterstützend einwirkt. In der Konsequenz können Lufteinschlüsse zusätzlich vermieden werden.In a further embodiment not claimed, the winding device comprises a further pressing element which is adapted to exert a pressing force on the wound web-shaped material of the first winding core or of the second winding core independently of the first pressing element. As a result, for example, the technical advantage is achieved that the pressing force is additionally improved by the further pressing element. This can be done both in the form that both pressing elements simultaneously act on a winding core, as well as in the form that the further pressing element acts just during the change from the first winding core to the second winding core supportive. As a consequence, air pockets can be additionally avoided.
In einer weiteren vorteilhaften Ausführungsform ist zumindest eine weitere Bahnführungswalze vorgesehen. Dadurch wird beispielsweise der technische Vorteil erreicht, dass eine Zuführung des bahnförmigen Materials zu einem Wickelkern verbessert werden kann.In a further advantageous embodiment, at least one further web guide roller is provided. As a result, for example, the technical advantage is achieved that a supply of the web-shaped material can be improved to form a winding core.
In einer weiteren vorteilhaften Ausführungsform ist die Rotationsachse in einem Maschinengestell gelagert. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die gesamte Wickelvorrichtung um die Rotationsachse geschwenkt werden kann. Dies ermöglicht, dass zu dem Zeitpunkt, zu dem die Wickelvorrichtung den ersten Wickel fertig gewickelt hat, und im Anschluss daran der zweite Wickel angewickelt werden soll, dieser Wechsel ohne ein Anhalten der Druckmaschine erfolgen kann, indem die gesamte Wickelvorrichtung um die Rotationsachse geschwenkt wird.In a further advantageous embodiment, the axis of rotation is mounted in a machine frame. As a result, for example, the technical advantage is achieved that the entire winding device can be pivoted about the axis of rotation. This allows that at the time when the winding device has finished wound the first winding, and then the second winding is to be wound, this change without a Stop the printing machine can be done by the entire winding device is pivoted about the axis of rotation.
In einer weiteren nicht beanspruchten Ausführungsform umfasst die Wickelvorrichtung eine Schutzeinrichtung, um ein Eingreifen in den Wickelspalt der Andrückelemente und/oder der Bahnführungswalzen zu verhindern. Dadurch wird beispielsweise der technische Vorteil erreicht, dass während des Betriebs der Druckmaschine erhöhten Sicherheitsbestimmungen Rechnung getragen wird. Somit wird das Verletzungsrisiko für einen Nutzer verringert, und es wird zusätzlich verhindert, dass Gegenstände oder Fremdkörper in den Wickelspalt der Andrückelemente und/oder der Bahnführungswalzen gelangen können. In der Konsequenz werden Beschädigungen an der Wickelvorrichtung bzw. an der Druckmaschine verhindert.In a further embodiment not claimed, the winding device comprises a protective device in order to prevent intervention in the winding nip of the pressure elements and / or the web guide rollers. As a result, for example, the technical advantage is achieved that during operation of the printing machine increased safety regulations are taken into account. Thus, the risk of injury to a user is reduced, and it is additionally prevented that objects or foreign objects can get into the winding nip of the pressing elements and / or the web guide rollers. As a consequence, damage to the winding device or to the printing machine can be prevented.
In einer weiteren nicht beanspruchten Ausführungsform umfasst die Schutzeinrichtung mehrere Teilschutzelemente, welche gegeneinander verschiebbar ausgebildet sind. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Schutzeinrichtung auch während des Wechsels von dem ersten Wickelkern zu dem zweiten Wickelkern durchgehend das Eingreifen oder das Eindringen von Gegenständen in die Wickelvorrichtung verhindert. Durch die gegeneinander verschiebbare Ausgestaltung der Teilschutzelemente bleibt die Schutzeinrichtung auch dann kontinuierlich bestehen, wenn das Andrückelement von dem ersten Wickelkern zu dem zweiten Wickelkern überführt wird.In a further unclaimed embodiment, the protective device comprises a plurality of partial protection elements, which are designed to be displaceable relative to one another. As a result, for example, the technical advantage is achieved that the protective device continuously prevents the intervention or the penetration of objects into the winding device even during the change from the first winding core to the second winding core. As a result of the mutually displaceable design of the partial protection elements, the protective device also remains continuous even when the pressure element is transferred from the first winding core to the second winding core.
In einer weiteren nicht beanspruchten Ausführungsform wird ein Verfahren zum Aufwickeln eines bahnförmigen Materials, vorzugsweise in einer Druckmaschine, beschrieben, bei dem das bahnförmige Material auf einem ersten Wickelkern zu einem Materialwickel aufgewickelt wird, wobei der erste Wickelkern um eine Rotationsachse schwenkbar ist, das bahnförmige Material beim Aufwickeln auf den ersten Wickelkern von einer Bahnführungswalze geführt wird, und das auf dem ersten Wickelkern aufgewickelte bahnförmige Material von einem Andrückelement mit einer Andrückkraft angedrückt wird, wobei das Andrückelement beim Schwenken des ersten Wickelkerns um die Rotationsachse die Andrückkraft auf das bahnförmige Material des ersten Wickelkerns konstant hält und die Auswirkungen der Schwerkraft auf das Andrückelement bei sich ändernder Schwenkposition kompensiert. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Andrückkraft des Andrückelements, unabhängig von der Schwenkposition des Wickelkerns, gleich bleibt. In der Konsequenz können Lufteinschlüsse vermieden werden. Dies ist insbesondere während des Wechsels von einem ersten auf einen zweiten Wickel von besonderer Relevanz, wenn die Wickelvorrichtung den ersten Wickel fertig gewickelt hat und zum Zweck des zügigen Anwickelns des zweiten Wickels, ohne ein Anhalten der Druckmaschine, den ersten Wickel um die Rotationsachse bzw. die Lagerung im Maschinengestell schwenkt, bis das Anwickeln des zweiten Wickels erfolgen kann.In a further embodiment not claimed is a method for winding a web-shaped material, preferably in a printing machine, described in which the web-like material is wound on a first winding core to a material roll, wherein the first winding core is pivotable about a rotation axis, the web-shaped material wound on the first winding core is guided by a web guide roller, and wound on the first winding core web-shaped material is pressed by a pressure element with a pressing force, wherein the pressing member during pivoting of the first winding core to the Rotation axis keeps the pressure force on the web-shaped material of the first winding core constant and compensates for the effects of gravity on the pressure element with changing pivot position. As a result, for example, the technical advantage is achieved that the pressing force of the pressing element, regardless of the pivot position of the winding core, remains the same. As a consequence, air pockets can be avoided. This is particularly relevant during the change from a first to a second winding of particular relevance, when the winding device has wound the first winding and for the purpose of rapidly winding the second roll, without stopping the printing press, the first winding about the axis of rotation or the storage in the machine frame pivots until the winding of the second roll can be done.
Weitere Ausführungsbeispiele der Erfindung gehen aus der gegenständlichen Beschreibung und den Ansprüchen hervor.Further embodiments of the invention will become apparent from the description and the claims.
Die einzelnen Figuren zeigen:
Der erste Wickelkern 205 ist beidendig drehbar zwischen zwei parallel angeordneten Scheiben bzw. Platten 221 angeordnet, wobei in
Zwischen den Scheiben 221 befindet sich noch ein zweiter Wickelkern 215. Dieser zweite Wickelkern 215 ist dem ersten Wickelkern 205 bezüglich der Rotationsachse 209 gegenüberliegend angeordnet und wie der erste Wickelkern 205 beidendig drehbar zwischen den zwei parallel angeordneten Scheiben 221 befestigt. Durch eine Drehung der Scheiben 221 bzw. durch Schwenken der Scheiben 221, vorzugsweise in Drehrichtung R, kann der ersten Wickelkern 205 von der Bahnführungswalze 211 weggeschwenkt und der zweite Wickelkern 215 zu der Bahnführungswalze 211 hingeschwenkt werden. Nun kann das bahnförmige Material 103 von einer nicht dargestellten Schneidvorrichtung durchtrennt werden, wodurch ein neuer Bahnanfang entsteht. Dieser neue Bahnanfang kann nun mit einem geeigneten Mittel - beispielsweise ein Klebemittel - auf dem zweiten Wickelkern 215 festgelegt werden, um ein Anwickeln des Bahnanfangs auf dem zweiten Wickelkern 215 zu ermöglichen. Somit nimmt der zweite Wickelkern 215 die ursprüngliche Position des ersten Wickelkerns 205 ein. Der alte Materialwickel 207 kann hingegen aus der Wickelvorrichtung 101 entfernt und durch einen leeren Wickelkern ersetzt werden. Auf diese Weise entsteht, ohne dass die Wickelvorrichtung 101 bzw. die Druckmaschine 100 wegen des Wechsels des Wickelkerns angehalten werden muss, ein neuer Materialwickel.Between the
Auf einer der Bahnführungswalze 211 gegenüber liegenden Seite des ersten Wickelkerns 205 ist ein Andrückelement 213 angeordnet, welches mit einer einstellbaren Andrückkraft auf den ersten Wickel 205 bzw. den Materialwickel 207 einwirkt, um Lufteinschlüsse in dem Materialwickel 207 zu verhindern. Die Andrückkraft des Andrückelements 213 wird auch dann konstant aufrechterhalten, wenn die Wickelvorrichtung 101 bzw. der erste Wickelkern 205 durch Schwenken der Scheiben 221 um die Rotationsachse 209 in dem Maschinengestell geschwenkt bzw. gedreht wird. Dies ist regelmäßig dann der Fall, wenn von dem ersten Wickelkern 205 auf einen zweiten Wickelkern 215 gewechselt werden muss. Um den Vorgang des Wechsels von dem ersten Wickelkern 205 zu dem zweiten Wickelkern 215 zügig und ohne Standzeit der Druckmaschine zu vollziehen, wird das Wegschwenken des ersten Wickelkerns 205 und Hinschwenken des zweiten Wickelkerns 215 um die Rotationsachse 209 vorgenommen, während das bahnförmige Material 103 weiterhin auf den ersten Wickelkern 205 aufgewickelt wird. Hierbei werden durch die weiterhin einwirkende - sich an den aktuellen Schwenkwinkel anpassende - konstante Andrückkraft des Andrückelements 213 auf den ersten Materialwickel 207 weiterhin Lufteinschlüsse verhindert. Dies kann unter Einsatz einer pneumatischen Steuerung und insbesondere mit einem E/P-Wandler erfolgen, wodurch eine sehr präzise Steuerung der Andrückkraft des Andrückelements 213 auf den Materialwickel 207 erreicht werden kann. Alternativ kann die Steuerung aber auch mit anderen Mitteln erfolgen, welche dazu geeignet sind, den Einfluss der Schwerkraft auf das Andrückelement 213 zu kompensieren, um eine konstant bleibende Andrückkraft auf den Materialwickel 207 auch während des Wechsels von dem ersten Wickelkern 205 zu dem zweiten Wickelkern 215 zu realisieren.On one of the
Nachdem das bahnförmige Material 103 von der nicht dargestellten Schneidvorrichtung durchtrennt und der neue Bahnanfang auf dem zweiten Wickelkern 215 angewickelt wurde, kann der alte Materialwickel 207, wie bereits beschrieben, aus der Wickelvorrichtung 101 entfernt und durch einen leeren Wickelkern ersetzt werden. Das Andrückelement 213 wird nun entlang zwei parallel verlaufender Schienen 223 zum gegenüberliegenden - inzwischen angewickelten - zweiten Wickelkern 215 überführt, um die eingestellte Andrückkraft auf den Materialwickel des zweiten Wickelkerns 215 aufzubringen.After the web-
Zusätzlich wäre jedoch auch ein weiteres Andrückelement denkbar, welches, unabhängig von dem ersten Andrückelement 213, auf das aufgewickelte bahnförmige Material 103 des ersten Wickelkerns 205 eine Andrückkraft auf den Materialwickel 207 ausübt. So könnten beide Andrückelemente gleichzeitig auf den Materialwickel 207 einwirken und das weitere Andrückelement könnte insbesondere während des Wechsels von dem ersten Wickelkern 205 auf den zweiten Wickelkern 215 schon von Beginn des Anwickelns des zweiten Wickelkerns 215 an auf diesen mit einer Andrückkraft einwirken, während das erste Andrückelement 213 noch auf den Materialwickel 207 des ersten Wickelkerns 205 einwirkt.In addition, however, another pressing element would also be conceivable, which, regardless of the first
Vorzugsweise kann das Andrückelement 213 eine drehangetriebene Anpresswalze umfassen, um die Umfangsgeschwindigkeit der Anpresswalze auf die Umfangsgeschwindigkeit des ersten Wickelkerns 205 und/oder des Materialwickels 207 einzustellen. Dadurch wird die Umfangsgeschwindigkeit des Andrückelements 213 nicht erst bei In-Kontakt-Treten mit einem Wickelkern durch die Rotation des Wickelkerns selbst erreicht, sondern ist bereits vor dem In-Kontakt treten mit einem Wickelkern einstellbar.Preferably, the pressing
Hierbei könnte die Anpresswalze elastische Oberflächeneigenschaften aufweisen, um Dickenunterschiede des bahnförmigen Materials 103 auszugleichen. Diese können insbesondere durch ungleichmäßig oder unregelmäßig auf das bahnförmige Material 103 aufgebrachte Farbe verursacht werden, werden aber nicht mechanisch durch die elastischen Oberflächeneigenschaften der Anpresswalze ausgeglichen. Dies kann Beschädigungen am bahnförmigen Material verhindern.Here, the pressure roller could have elastic surface properties to compensate for differences in thickness of the
Das Andrückelement 213 kann beispielsweise durch eine hydraulische Steuerung angetrieben werden. Dadurch könnte die Steuerung flexibel und Platz sparend an die baulichen Gegebenheiten der Wickelvorrichtung angepasst werden, was zudem mit einfachen und leicht verfügbaren, zuverlässigen und kostengünstigen Standardbauteilen realisierbar ist.The
Zusätzlich könnten der erste Wickelkern 205 und der zweite Wickelkern 215 jeweils mit einem Antrieb ausgestattet sein, der ein Antriebsdrehmoment auf den ersten Wickelkern 205 und den zweiten Wickelkern 215 ausübt. Dies würde eine präzise Einstellbarkeit der Rotationsgeschwindigkeit der Wickelkerne mit sich bringen, was insbesondere während des Wechsels von dem ersten Wickelkern 205 auf den zweiten Wickelkern 215 von Bedeutung sein könnte, da der Wechsel der Wickelkerne besonders präzise und exakt koordiniert verlaufen würde.In addition, the first winding
Des Weiteren zeigt
Claims (5)
- A winding device (101) for winding up a web-shaped material (103), preferably in a printing machine (100), having:- a first winding core (205), on which the web-shaped material (103) can be wound up to form a reel of material (207), wherein the first winding core (205) is designed to be pivotable about an axis of rotation (209),- a web guide roll (211), which is configured to guide the web-shaped material (103) when winding up on the first winding core (205),- a pressing element (213), which presses the web-shaped material (103) wound up on the first winding core (205) with an adjustable pressing force,characterized in that
the pressing element (213) keeps the pressing force on the web-shaped material (103) of the first winding core (205) constant during the pivoting of the first winding core (205) about the axis of rotation (209), wherein a control is provided, with which at an identified pivot angle of the winding core an electro pneumatic (E/P) transducer can be controlled, with which an adaptation of the pressing force can be performed, wherein an electrical signal is converted into a pneumatic signal, in order to compensate for the effects of gravity on the pressing element (213) in the case of a changing pivot position. - A winding device according to Claim 1,
characterized in that
the pressing element (213) comprises a linear drive with a rodless cylinder. - A winding device according to any one of the preceding claims,
characterized in that
the pressing element (213) comprises an hydraulic control. - A winding device according to any one of the preceding claims,
characterized in that
at least one further web guide roller is provided. - A winding device according to any one of the preceding claims,
characterized in that
the axis of rotation (209) is mounted in a machine frame.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102014214335.7A DE102014214335B4 (en) | 2014-07-23 | 2014-07-23 | Winding device for winding a web-shaped material |
Publications (3)
Publication Number | Publication Date |
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EP2977341A2 EP2977341A2 (en) | 2016-01-27 |
EP2977341A3 EP2977341A3 (en) | 2016-05-11 |
EP2977341B1 true EP2977341B1 (en) | 2019-04-17 |
Family
ID=53510778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15175252.4A Active EP2977341B1 (en) | 2014-07-23 | 2015-07-03 | Positioning roller for a printing machine |
Country Status (3)
Country | Link |
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EP (1) | EP2977341B1 (en) |
DE (1) | DE102014214335B4 (en) |
ES (1) | ES2728107T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019121695A1 (en) | 2017-12-20 | 2019-06-27 | Windmöller & Hölscher Kg | Reversing winder and method for operating a reversing winder |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE198928C (en) | ||||
DE2431961A1 (en) * | 1974-07-03 | 1976-01-22 | Artos Meier Windhorst Kg | Winding device for continuously running band goods - has core driven by end roller of adjoining production plant |
DE8124903U1 (en) | 1981-08-26 | 1982-01-07 | Stahlkontor Weser Lenze KG, 3251 Aerzen | MULTIPLE WRAPPING MACHINE |
US4971263A (en) | 1988-11-10 | 1990-11-20 | Magna-Graphics Corporation | Interior rider roll |
DE19853928C2 (en) * | 1998-11-23 | 2003-12-18 | Tnt Maschb Gmbh | Turning winder |
US8201768B2 (en) | 2006-10-09 | 2012-06-19 | Windmoeller & Hoelscher Kg | Pivotable positioning roller in the reversing winder |
DE102008025994B4 (en) | 2008-05-29 | 2011-06-09 | Windmöller & Hölscher Kg | press |
-
2014
- 2014-07-23 DE DE102014214335.7A patent/DE102014214335B4/en active Active
-
2015
- 2015-07-03 ES ES15175252T patent/ES2728107T3/en active Active
- 2015-07-03 EP EP15175252.4A patent/EP2977341B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
EP2977341A3 (en) | 2016-05-11 |
DE102014214335B4 (en) | 2020-07-09 |
ES2728107T3 (en) | 2019-10-22 |
EP2977341A2 (en) | 2016-01-27 |
DE102014214335A1 (en) | 2016-01-28 |
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