EP0497105B1 - Unwinding device for reels - Google Patents

Unwinding device for reels Download PDF

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Publication number
EP0497105B1
EP0497105B1 EP92100306A EP92100306A EP0497105B1 EP 0497105 B1 EP0497105 B1 EP 0497105B1 EP 92100306 A EP92100306 A EP 92100306A EP 92100306 A EP92100306 A EP 92100306A EP 0497105 B1 EP0497105 B1 EP 0497105B1
Authority
EP
European Patent Office
Prior art keywords
bearing housing
fastened
unwinding device
piston
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92100306A
Other languages
German (de)
French (fr)
Other versions
EP0497105A1 (en
Inventor
Karl Thievessen
Peter Weiss
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.)
Voith Paper Jagenberg GmbH
Original Assignee
Jagenberg Papiertechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jagenberg Papiertechnik GmbH filed Critical Jagenberg Papiertechnik GmbH
Publication of EP0497105A1 publication Critical patent/EP0497105A1/en
Application granted granted Critical
Publication of EP0497105B1 publication Critical patent/EP0497105B1/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/02—Supporting web roll
    • B65H16/06—Supporting web roll both-ends type
    • 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
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/12—Lifting, transporting, or inserting the web roll; Removing empty core
    • B65H19/126—Lifting, transporting, or inserting the web roll; Removing empty core with both-ends supporting arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4134—Both ends type arrangement
    • B65H2301/41346—Both ends type arrangement separate elements engaging each end of the roll (e.g. chuck)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4135—Movable supporting means
    • B65H2301/41352—Movable supporting means moving on linear path (including linear slot arrangement)
    • B65H2301/413526—Movable supporting means moving on linear path (including linear slot arrangement) vertically moving supporting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4171—Handling web roll
    • B65H2301/4173—Handling web roll by central portion, e.g. gripping central portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/40—Holders, supports for rolls
    • B65H2405/42—Supports for rolls fully removable from the handling machine
    • B65H2405/422—Trolley, cart, i.e. support movable on floor

Definitions

  • the invention relates to a rolling device for winding rolls, in particular made of paper or cardboard, according to the preamble of claim 1.
  • Devices of this type in which the winding roll is clamped axlelessly between the clamping heads during unwinding and is held by these, are used for unwinding paper or cardboard webs before subsequent processing machines, e.g. B. a cross cutting machine.
  • the clamping heads can be moved towards and away from each other in the direction of their axis of rotation for loading with a new winding roll, for unloading the rest of the roll and for adjusting to different roll widths. Depending on the diameter of a full winding roll, these are raised to the unwinding position.
  • a roll-off device in which the clamping heads for lifting the full winding rolls can be moved vertically by means of a lifting drive.
  • they are attached to support arms that are used to clamp the Winding roll are arranged displaceably on a horizontal bar, the bar being guided vertically displaceably by a lifting height by means of a lifting drive.
  • the support arms extend in and against the web running direction as cantilever arms away from the beams mounted in the side supports. Large torques therefore occur with heavy winding rolls.
  • the frame of the rolling device must therefore be made very solid to accommodate the torques, and the guidance of the vertical movement of the support arms must be designed to be complex.
  • US-A 2,346,948 describes a unwinding device according to the preamble of claim 1 with a piston-cylinder unit which presses to lift the winding rollers and is arranged laterally next to one of the supports transversely to the web running direction.
  • a brake is arranged on one side on the inner side of the bearing housing of the clamping head.
  • the invention has for its object to improve a generic unwinding device with a compact design so that it is suitable for unwinding heavy winding rolls.
  • a pulling piston-cylinder unit as a lifting drive can be implemented in a structurally simple manner and is capable of applying the necessary forces when lifting heavy winding rolls. In addition, a space-saving vertical arrangement is made possible.
  • the unwinding device can be built very compactly and is therefore particularly suitable for arranging several unrolling devices one behind the other. With such arrangements, there is limited space, which requires small dimensions of the individual unwinding devices both in the web running direction and in height and width.
  • the unwinding device according to the invention requires less space in height and web running direction than the maximum diameter of a winding roll to be unwound. Foundation pits are not required.
  • Claims 4 and 5 contain advantageous embodiments of a drive for the transverse adjustment of the stand, the drive being particularly space-saving by means of an immovable chain attached to the floor with a motor attached to the respective stand.
  • the unwinding device has two stands 1, 2 which are constructed in mirror symmetry and are arranged at a distance from one another. They are on two parallel rails 3, 4 fastened to the floor, with a T-shaped cross section towards and towards each other stored movably away from each other.
  • Each stand 1, 2 is made up of two vertical supports 5, 6 with a U-shaped cross section, which are fastened to a base plate 7 and are connected at their upper end to a crossbar 8.
  • Guides 9, 10 fastened to the underside of the base plate 7 engage around the rails 3, 4.
  • Side parts 11, 12 fastened to the outside of the supports 5, 6 each support them on the base plate 7 transversely to the web running direction.
  • An electric or hydraulic motor 13 which is attached to the base plate 7, serves as the drive for the transverse adjustment of the stands 1, 2.
  • the motor 13 drives a pinion 14 which is partially wrapped in an immovable chain 15 which extends between the rails 3, 4 in the direction of web travel and is fastened to the floor at both ends.
  • the two supports 5, 6 open on the sides facing each other form a vertical guide for a bearing housing 16 arranged between them.
  • the bearing housing 16 has lateral rollers 17 with axes running in the direction of web travel, which are in the U-profile of the supports 5, 6 according to Art a backdrop guide are fitted.
  • the guide function of the preferred rollers 17 can also take over lateral sliding blocks.
  • a horizontal clamping head 18 is rotatably mounted centrally on the inside of each bearing housing 16 and is connected to a shaft 19 which extends outwards through the bearing housing 16. At least on one, preferably on both stands 1, 2, the shaft 19 is connected to a brake 20 which is fastened to the outside of the bearing housing 16.
  • the bearing housing 16 with clamping head 18 and brake 20 in the lower unloading position for a roller rest is shown in dashed lines.
  • the bearing housing 16 with the clamping head 18 and the brake 20 can be lifted from the lower roll receiving and unloading position to the upper unwinding position by means of a lifting drive which acts symmetrically on the vertical plane 29 through the axis of rotation 22 of the clamping heads 18 on the bearing housing 16.
  • the linear actuator is shown in more detail in FIG. 2:
  • the cylinder 23 of a hydraulic piston-cylinder unit is fastened vertically to a side part 12.
  • the length of the cylinder 23 is approximately half the height of the support 6, so that the piston rod 24 extends in the extended position into the area of the crossbar 8.
  • a free-running gear 25 is fastened, which is suspended in a pull chain 26 guided in the crossbar 8.
  • the pull chain 26 is attached at one end to the crossbar 8, with the other end to the bearing housing 16 perpendicularly above the axis of rotation 22. It is guided by two guide wheels 27, 28 fastened to the crossbar 8, the gear wheel 25 fastened to the piston rod 24 being located between the start of the chain and the first guide wheel 27, and the second guide wheel 27 deflecting the chain 26 vertically downward.
  • This arrangement in the manner of an inverted block and tackle, causes a 2/1 ratio of the movement of the piston rod 24 to the bearing housing 16. This enables the movement of the bearing housing 16 from the floor to the unwinding position below the crossmember 8 with the space-saving arrangement of the piston-cylinder Unit 23, 24 vertically next to the support 6, in which the piston rod 24 can only carry out half the required stroke of the bearing housing 16.
  • the unwinding device is thus capable of lifting a full winding roll 21 transported by an industrial conveyor itself into the unwinding position. Separate lifting devices such as lifting tables, cranes etc. are not required.
  • the dimensions of the unwinding device both in the web running direction and in height are small; no foundation pits are required. The small dimensions make it possible to arrange several unrolling devices one behind the other in order to lay several webs one above the other in the subsequent processing machine, e.g. B. a cross cutting machine. Then there is limited space, since the individual unrolling devices are integrated in a frame, the stands of which are arranged between the unrolling devices. Above the unrolling devices are longitudinal members of the scaffold, in which guide rollers and, if necessary, splice devices for a roll change are fastened.
  • the full winding rolls 21 are preferably fed to the unwinding devices by a floor conveyor running centrally in the web running direction, in particular a chain conveyor, in the web running direction; lateral feed across the web direction is also possible.
  • the stands 1, 2 are so far apart that a winding roller 21 can be moved between the clamping heads 18.
  • the clamping heads 18 move from both sides into the sleeve of the winding roller 21, then the piston-cylinder unit 23, 24 lifts the bearing housing 16 with the suspended winding roller 21 into the upper unwinding position. After unwinding, the remainder of the roll is lowered accordingly and transferred to the floor conveyor by moving the stands 1, 2 apart.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Unwinding Webs (AREA)

Description

Die Erfindung betrifft eine Abrollvorrichtung für Wickelrollen, insbesondere aus Papier- oder Karton, gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a rolling device for winding rolls, in particular made of paper or cardboard, according to the preamble of claim 1.

Vorrichtungen dieser Art, bei denen die Wickelrolle während des Abwickelns achslos zwischen den Spannköpfen eingespannt ist und von diesen gehalten wird, dienen zum Abwickeln von Papier- oder Kartonbahnen vor nachfolgenden Verarbeitungsmaschinen, z. B. einer Querschneidemaschine. Zum Beladen mit einer neuen Wickelrolle, zum Entladen des Rollenrestes und zur Einstellung auf verschiedene Rollenbreiten sind die Spannköpfe in Richtung ihrer Drehachse aufeinander zu- und voneinander wegbewegbar. In Abhängigkeit von dem Durchmesser einer vollen Wickelrolle werden diese bis in die Abwickelposition angehoben.Devices of this type, in which the winding roll is clamped axlelessly between the clamping heads during unwinding and is held by these, are used for unwinding paper or cardboard webs before subsequent processing machines, e.g. B. a cross cutting machine. The clamping heads can be moved towards and away from each other in the direction of their axis of rotation for loading with a new winding roll, for unloading the rest of the roll and for adjusting to different roll widths. Depending on the diameter of a full winding roll, these are raised to the unwinding position.

Aus der DE-OS 32 07 366 ist eine Abrollvorrichtung bekannt, bei der die Spannköpfe zum Anheben der vollen Wickelrollen mittels eines Hubantriebs vertikal bewegbar sind. Dazu sind sie an Tragarmen befestigt, die zum Einspannen der Wickelrolle auf einem horizontalen Balken verschiebbar angeordnet sind, wobei der Balken mittels eines Hubantriebs um eine Hubhöhe vertikal verschiebbar geführt ist. Die Tragarme erstrecken sich in und gegen Bahnlaufrichtung als Kragarme von den in seitlichen Stützen gelagerten Balken weg. Bei schweren Wickelrollen treten daher große Drehmomente auf. Das Gestell der Abrollvorrichtung muß somit zum Aufnehmen der Drehmomente sehr massiv ausgeführt werden, und die Führung der Vertikalbewegung der Tragarme muß aufwendig gestaltet sein.From DE-OS 32 07 366 a roll-off device is known, in which the clamping heads for lifting the full winding rolls can be moved vertically by means of a lifting drive. For this purpose, they are attached to support arms that are used to clamp the Winding roll are arranged displaceably on a horizontal bar, the bar being guided vertically displaceably by a lifting height by means of a lifting drive. The support arms extend in and against the web running direction as cantilever arms away from the beams mounted in the side supports. Large torques therefore occur with heavy winding rolls. The frame of the rolling device must therefore be made very solid to accommodate the torques, and the guidance of the vertical movement of the support arms must be designed to be complex.

Die US-A 2,346,948 beschreibt eine Abrollvorrichtung gemäß dem Oberbegriff des Anspruchs 1 mit einer zum Anheben der Wickelrollen drückenden Kolben-Zylinder-Einheit, die quer zur Bahnlaufrichtung seitlich neben einer der Stützen angeordnet ist. An einer Seite ist eine Bremse an der inneren Seite des Lagergehäuses des Spannkopfes angeordnet.US-A 2,346,948 describes a unwinding device according to the preamble of claim 1 with a piston-cylinder unit which presses to lift the winding rollers and is arranged laterally next to one of the supports transversely to the web running direction. A brake is arranged on one side on the inner side of the bearing housing of the clamping head.

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Abrollvorrichtung bei kompakter Bauweise so zu verbessern, daß sie zum Abwickeln schwerer Wickelrollen geeignet ist.The invention has for its object to improve a generic unwinding device with a compact design so that it is suitable for unwinding heavy winding rolls.

Diese Aufgabe wird mit den kennzeichnenden Merkmalen des Patentanspruchs 1 gelöst.This object is achieved with the characterizing features of patent claim 1.

Eine ziehende Kolben-Zylinder-Einheit als Hubantrieb läßt sich konstruktiv einfach realisieren und ist in der Lage, die erforderlichen Kräfte beim Anheben schwerer Wickelrollen aufzubringen. Zusätzlich wird eine platzsparende senkrechte Anordnung ermöglicht.A pulling piston-cylinder unit as a lifting drive can be implemented in a structurally simple manner and is capable of applying the necessary forces when lifting heavy winding rolls. In addition, a space-saving vertical arrangement is made possible.

Als weiterer Vorteil tritt hinzu, daß sich die Abrollvorrichtung sehr kompakt bauen läßt und sich somit besonders zur Anordnung mehrerer Abrollvorrichtungen hintereinander eignet. Bei derartigen Anordnungen liegen beengte Platzverhältnisse vor, die geringe Abmessungen der einzelnen Abrollvorrichtungen sowohl in Bahnlaufrichtung als auch in der Höhe und Breite erfordern. Die Abrollvorrichtung nach der Erfindung benötigt in Höhe und Bahnlaufrichtung weniger Platz als der maximale Durchmesser einer abzuwickelnden Wickelrolle. Fundamentgruben sind nicht erforderlich.Another advantage is that the unwinding device can be built very compactly and is therefore particularly suitable for arranging several unrolling devices one behind the other. With such arrangements, there is limited space, which requires small dimensions of the individual unwinding devices both in the web running direction and in height and width. The unwinding device according to the invention requires less space in height and web running direction than the maximum diameter of a winding roll to be unwound. Foundation pits are not required.

Die Unteransprüche enthalten bevorzugte, da besonders vorteilhafte Ausgestaltungen der Erfindung.The subclaims contain preferred, since particularly advantageous, embodiments of the invention.

Bei der zentralen Anordnung des Spannkopfes an einem beidseitig in senkrechten Führungen geführten Lagergehäuse nach Anspruch 2 werden die beim Einspannen einer vollen Wickelrolle auftretenden axialen Kräfte gleichmäßig von den Führungen aufgenommen.In the central arrangement of the clamping head on a bearing housing guided on both sides in vertical guides according to claim 2, the axial forces occurring when clamping a full winding roll are absorbed evenly by the guides.

Nach Anspruch 3 wird in einem Verhältnis 2/1 übersetzt, um eine Kolben-Zylinder-Einheit einsetzen zu können, die nur wenig über aie höchste Position der Spannköpfe hinausragt.According to claim 3 is translated in a ratio 2/1 in order to be able to use a piston-cylinder unit which protrudes only slightly beyond the highest position of the clamping heads.

Die Patentansprüche 4 und 5 enthalten vorteilhafte Ausgestaltungen eines Antriebs für die Querverstellung der Ständer, wobei der Antrieb über eine am Boden befestigte, unwegbare Kette mit einem am jeweiligen Ständer befestigten Motor besonders platzsparend ist.Claims 4 and 5 contain advantageous embodiments of a drive for the transverse adjustment of the stand, the drive being particularly space-saving by means of an immovable chain attached to the floor with a motor attached to the respective stand.

Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels.

  • Fig. 1
    zeigt eine Frontansicht in Bahnlaufrichtung,
  • Fig. 2
    zeigt eine Seitenansicht.
The drawing serves to explain the invention with reference to an embodiment shown in simplified form.
  • Fig. 1
    shows a front view in the direction of web travel,
  • Fig. 2
    shows a side view.

Die Abrollvorrichtung weist zwei spiegelsymmetrisch aufgebaute, mit Abstand voneinander angeordnete Ständer 1, 2 auf. Sie sind auf zwei parallelen, am Boden befestigten Schienen 3, 4, mit T-förmigem Querschnitt quer zur Bahnlaufrichtung aufeinander zu- und von einander wegbewegbar gelagert. Jeder Ständer 1, 2 baut sich aus zwei senkrechten Stützen 5, 6 mit U-förmigem Querschnitt auf, die auf einer Grundplatte 7 befestigt und an ihrem oberen Ende mit einer Quertraverse 8 verbunden sind. An der Unterseite der Grundplatte 7 befestigte Führungen 9, 10 umgreifen die Schienen 3, 4. Jeweils außen an den Stützen 5, 6 befestigte Seitenteile 11, 12 stützen diese quer zur Bahnlaufrichtung auf der Bodenplatte 7 ab.The unwinding device has two stands 1, 2 which are constructed in mirror symmetry and are arranged at a distance from one another. They are on two parallel rails 3, 4 fastened to the floor, with a T-shaped cross section towards and towards each other stored movably away from each other. Each stand 1, 2 is made up of two vertical supports 5, 6 with a U-shaped cross section, which are fastened to a base plate 7 and are connected at their upper end to a crossbar 8. Guides 9, 10 fastened to the underside of the base plate 7 engage around the rails 3, 4. Side parts 11, 12 fastened to the outside of the supports 5, 6 each support them on the base plate 7 transversely to the web running direction.

Als Antrieb für die Querverstellung der Ständer 1, 2 dient jeweils ein Elektro- oder Hydromotor 13, der auf der Grundplatte 7 befestigt ist. Der Motor 13 treibt ein Ritzel 14 an, das teilweise von einer unbewegbaren Kette 15 umschlungen ist, die sich zwischen den Schienen 3, 4 in Bahnlaufrichtung erstreckt und an beiden Enden am Boden befestigt ist.An electric or hydraulic motor 13, which is attached to the base plate 7, serves as the drive for the transverse adjustment of the stands 1, 2. The motor 13 drives a pinion 14 which is partially wrapped in an immovable chain 15 which extends between the rails 3, 4 in the direction of web travel and is fastened to the floor at both ends.

Die beiden an den einander zugewandten Seiten offenen Stützen 5, 6 bilden eine Vertikalführung für ein zwischen ihnen angeordnetes Lagergehäuse 16. Das Lagergehäuse 16 weist seitliche Rollen 17 mit in Bahnlaufrichtung verlaufenden Achsen auf, die in das U-Profil der Stützen 5, 6 nach Art einer Kulissenführung eingepaßt sind. Die Führungsfunktion der bevorzugten Rollen 17 können auch seitliche Gleitsteine übernehmen. Jeweils zentral an der Innenseite jedes Lagergehäuses 16 ist ein horizontaler Spannkopf 18 drehbar gelagert und mit einer sich nach außen durch das Lagergehäuse 16 erstreckenden Welle 19 verbunden. Zumindest an einem, bevorzugt an beiden Ständern 1, 2 ist die Welle 19 an eine Bremse 20 angeschlossen, die an der Außenseite des Lagergehäuses 16 befestigt ist. In Fig. 1 ist das Lagergehäuse 16 mit Spannkopf 18 und Bremse 20 in der unteren Entladeposition für einen Rollenrest gestrichelt eingezeichnet.The two supports 5, 6 open on the sides facing each other form a vertical guide for a bearing housing 16 arranged between them. The bearing housing 16 has lateral rollers 17 with axes running in the direction of web travel, which are in the U-profile of the supports 5, 6 according to Art a backdrop guide are fitted. The guide function of the preferred rollers 17 can also take over lateral sliding blocks. A horizontal clamping head 18 is rotatably mounted centrally on the inside of each bearing housing 16 and is connected to a shaft 19 which extends outwards through the bearing housing 16. At least on one, preferably on both stands 1, 2, the shaft 19 is connected to a brake 20 which is fastened to the outside of the bearing housing 16. In Fig. 1, the bearing housing 16 with clamping head 18 and brake 20 in the lower unloading position for a roller rest is shown in dashed lines.

Das Lagergehäuse 16 mit dem Spannkopf 18 und der Bremse 20 ist mittels eines Hubantriebs, der symmetrisch zur senkrechten Ebene 29 durch die Drehachse 22 der Spannköpfe 18 an dem Lagergehäuse 16 angreift, von der unteren Rollenaufnahme- und Entladeposition bis in die obere Abwickelposition abhebbar. Der Hubantrieb ist in Fig. 2 detaillierter dargestellt:
An einem Seitenteil 12 ist außen der Zylinder 23 einer hydraulischen Kolben-Zylinder-Einheit senkrecht befestigt. Die Länge des Zylinders 23 beträgt in etwa die Hälfte der Höhe der Stütze 6, so daß die Kolbenstange 24 in ausgefahrener Position bis in den Bereich der Quertraverse 8 reicht. Am Ende der Kolbenstange 24 ist ein freilaufendes Zahnrad 25 befestigt, das in eine in der Quertraverse 8 geführten Zugkette 26 eingehängt ist. Die Zugkette 26 ist mit einem Ende an der Quertraverse 8, mit dem anderen Ende an dem Lagergehäuse 16 senkrecht oberhalb der Drehachse 22 befestigt. Sie wird von zwei an der Quertraverse 8 befestigten Führungsrädern 27, 28 geführt, wobei das an der Kolbenstange 24 befestigte Zahnrad 25 sich zwischen dem Kettenanfang und dem ersten Führungsrad 27 befindet, und das zweite Führungsrad 27 die Kette 26 senkrecht nach unten umlenkt. Diese Anordnung bewirkt nach Art eines umgekehrten Flaschenzuges eine 2/1-Übersetzung der Bewegung der Kolbenstange 24 auf das Lagergehäuse 16. Dies ermöglicht die Bewegung des Lagergehäuses 16 vom Boden bis in die Abwickelposition unterhalb der Traverse 8 bei der platzsparenden Anordnung der Kolben-Zylinder-Einheit 23, 24 senkrecht neben der Stütze 6, bei der die Kolbenstange 24 nur die Hälfte des erforderlichen Hubes des Lagergehäuses 16 durchführen kann.The bearing housing 16 with the clamping head 18 and the brake 20 can be lifted from the lower roll receiving and unloading position to the upper unwinding position by means of a lifting drive which acts symmetrically on the vertical plane 29 through the axis of rotation 22 of the clamping heads 18 on the bearing housing 16. The linear actuator is shown in more detail in FIG. 2:
The cylinder 23 of a hydraulic piston-cylinder unit is fastened vertically to a side part 12. The length of the cylinder 23 is approximately half the height of the support 6, so that the piston rod 24 extends in the extended position into the area of the crossbar 8. At the end of the piston rod 24, a free-running gear 25 is fastened, which is suspended in a pull chain 26 guided in the crossbar 8. The pull chain 26 is attached at one end to the crossbar 8, with the other end to the bearing housing 16 perpendicularly above the axis of rotation 22. It is guided by two guide wheels 27, 28 fastened to the crossbar 8, the gear wheel 25 fastened to the piston rod 24 being located between the start of the chain and the first guide wheel 27, and the second guide wheel 27 deflecting the chain 26 vertically downward. This arrangement, in the manner of an inverted block and tackle, causes a 2/1 ratio of the movement of the piston rod 24 to the bearing housing 16. This enables the movement of the bearing housing 16 from the floor to the unwinding position below the crossmember 8 with the space-saving arrangement of the piston-cylinder Unit 23, 24 vertically next to the support 6, in which the piston rod 24 can only carry out half the required stroke of the bearing housing 16.

Wesentlich ist, daß die Kraft der Hubantriebe symmetrisch zur senkrechten Ebene 29 durch die Drehachse 22 der Spannköpfe 18 an den Lagergehäusen 16 wirkt, damit beim Anheben der Wickelrollen 21 kein Drehmoment um eine Achse parallel zur Drehachse 22 der Spannköpfe 18 auftritt. Dies vereinfacht die Konstruktion erheblich.It is essential that the force of the linear actuators acts symmetrically to the vertical plane 29 through the axis of rotation 22 of the clamping heads 18 on the bearing housings 16, so that no torque occurs about an axis parallel to the axis of rotation 22 of the clamping heads 18 when the winding rollers 21 are raised. This simplifies the construction considerably.

Anstelle der bevorzugten Lösung mit einer senkrecht oberhalb des Spannkopfes 18 angreifenden Zugkette 26 können auch mehrere Zugketten an dem Lagergehäuse 16 symmetrisch zur Senkrechten durch die Drehachse 22 befestigt werden. Ebenso ist es möglich, ein Lagergehäuse 16 mittels symmetrisch angreifender Spindeln auf- und abzubewegen.Instead of the preferred solution with a pull chain 26 acting vertically above the clamping head 18, several pull chains can also be fastened to the bearing housing 16 symmetrically to the vertical through the axis of rotation 22. It is also possible to move a bearing housing 16 up and down by means of symmetrically acting spindles.

Die Abrollvorrichtung ist so in der Lage, eine von einem Flurförderer herantransportierte volle Wickelrolle 21 selbst bis in die Abwickelposition anzuheben. Getrennte Hubeinrichtungen wie Hubtische, Kräne etc. sind nicht erforderlich. Die Abmessungen der Abrollvorrichtung sowohl in Bahnlaufrichtung als auch in der Höhe sind gering; es sind keine Fundamentgruben erforderlich. Die geringen Abmessungen ermöglichen es, mehrere Abrollvorrichtungen hintereinander anzuordnen, um mehrere Bahnen übereinanderliegend der nachfolgenden Verarbeitungsmaschine, z. B. einer Querschneidemaschine, zuzuführen. Dann liegen beengte Platzverhältnisse vor, da die einzelnen Abrollvorrichtungen in ein Gerüst integriert sind, dessen Ständer zwischen den Abrollvorrichtungen angeordnet sind. Oberhalb der Abrollvorrichtungen befinden sich Längsträger des Gerüstes, in denen Leitwalzen und ggf. Spliceeinrichtungen für einen Rollenwechsel befestigt sind.The unwinding device is thus capable of lifting a full winding roll 21 transported by an industrial conveyor itself into the unwinding position. Separate lifting devices such as lifting tables, cranes etc. are not required. The dimensions of the unwinding device both in the web running direction and in height are small; no foundation pits are required. The small dimensions make it possible to arrange several unrolling devices one behind the other in order to lay several webs one above the other in the subsequent processing machine, e.g. B. a cross cutting machine. Then there is limited space, since the individual unrolling devices are integrated in a frame, the stands of which are arranged between the unrolling devices. Above the unrolling devices are longitudinal members of the scaffold, in which guide rollers and, if necessary, splice devices for a roll change are fastened.

Bevorzugt werden die vollen Wickelrollen 21 den Abrollvorrichtungen von einem mittig in Bahnlaufrichtung verlaufenden Flurförderer, insbesondere einem Kettenförderer, in Bahnlaufrichtung zugeführt; ebenso ist eine seitliche Zufuhr quer zur Bahnlaufrichtung möglich. Dabei sind die Ständer 1, 2 soweit auseinandergefahren, daß eine Wickelrolle 21 zwischen die Spannköpfe 18 bewegt werden kann. Die Spannköpfe 18 fahren von beiden Seiten in die Hülse der Wickelrolle 21 ein, anschließend hebt die Kolben-Zylinder-Einheit 23, 24 das Lagergehäuse 16 mit der eingehängten Wickelrolle 21 bis in die obere Abwickelposition an. Nach Beendigung des Abwickelns wird der Rollenrest entsprechend abgesenkt und durch Auseinanderfahren der Ständer 1, 2 dem Flurförderer übergeben.The full winding rolls 21 are preferably fed to the unwinding devices by a floor conveyor running centrally in the web running direction, in particular a chain conveyor, in the web running direction; lateral feed across the web direction is also possible. The stands 1, 2 are so far apart that a winding roller 21 can be moved between the clamping heads 18. The clamping heads 18 move from both sides into the sleeve of the winding roller 21, then the piston-cylinder unit 23, 24 lifts the bearing housing 16 with the suspended winding roller 21 into the upper unwinding position. After unwinding, the remainder of the roll is lowered accordingly and transferred to the floor conveyor by moving the stands 1, 2 apart.

Claims (5)

  1. Unwinding device for a reel (21) having two stands (1, 2) which are arranged at a distance from one another, can be displaced transversely to the running direction of the web and each consist of two vertical supports (5, 6), in which in each case one bearing housing (16) having a gripping head (18) fastened rotatably thereto is mounted such that it can be raised and lowered, a vertically arranged piston-cylinder unit (23, 24) engaging as the lifting drive on the bearing housing (16) symmetrically to the vertical plane (29) through the axis of rotation (22) of the gripping head (18), and having a brake (20) for at least one gripping head (18), which brake is fastened to one of the bearing housings (16), characterized in that the piston-cylinder unit (23, 24) is arranged on one of the vertical supports (6) laterally in the running direction of the web and is connected to the bearing housing (16) via a pulling chain (26), and in that the brake (20) is fastened on the outside of the bearing housing (16).
  2. Unwinding device according to Claim 1, characterized in that the gripping head (18) is fastened centrally on the bearing housing (16) guided on both sides in guides formed by these supports (5, 6).
  3. Unwinding device according to Claim 1 or 2, characterized in that the piston-cylinder unit (23, 24) is connected to the bearing housing (16) via a 2/1 transmission.
  4. Unwinding device according to one of Claims 1 to 3, characterized in that each stand (1, 2) is mounted on the ground on rails (3, 4) and can be displaced transversely to the running direction of the web by means of a motor (13) fastened to the respective stand (1, 2).
  5. Unwinding device according to Claim 4, characterized in that an immovable chain (15) is fastened on the ground parallel to the rails (3, 4), which chain runs around part of a pinion (14) of the motor (13).
EP92100306A 1991-02-01 1992-01-10 Unwinding device for reels Expired - Lifetime EP0497105B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4103057A DE4103057C2 (en) 1991-02-01 1991-02-01 Unwinding device for winding rolls
DE4103057 1991-02-01

Publications (2)

Publication Number Publication Date
EP0497105A1 EP0497105A1 (en) 1992-08-05
EP0497105B1 true EP0497105B1 (en) 1996-09-04

Family

ID=6424189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92100306A Expired - Lifetime EP0497105B1 (en) 1991-02-01 1992-01-10 Unwinding device for reels

Country Status (4)

Country Link
US (1) US5316231A (en)
EP (1) EP0497105B1 (en)
JP (1) JPH0558521A (en)
DE (2) DE4103057C2 (en)

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CN105692279A (en) * 2016-03-16 2016-06-22 昆山普来尔工程技术有限公司 Automatic leather cutting and rolling device

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NO179830C (en) * 1994-10-06 1996-12-27 Stolt Comex Seaway As Ship mounted device for winding or unwinding of pipes, cables and the like
US5607120A (en) * 1995-06-07 1997-03-04 Moore Business Forms, Inc. Paper roll hoist and unwind assembly
DE19713790A1 (en) * 1997-04-03 1998-10-08 Jagenberg Papiertech Gmbh Unwinding device for winding rolls
US5934604A (en) * 1998-10-13 1999-08-10 Paper Converting Machine Company Center drive unwind system
EP2499075B1 (en) * 2009-11-10 2016-01-27 Windmöller & Hölscher KG Clamping device for a shaft and method for clamping same
EP2536556B1 (en) 2010-02-15 2014-11-19 Ranpak Corp. Void-fill dunnage conversion machine and system
JP5411217B2 (en) * 2011-08-05 2014-02-12 東芝テック株式会社 Printer

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Publication number Priority date Publication date Assignee Title
CN105692279A (en) * 2016-03-16 2016-06-22 昆山普来尔工程技术有限公司 Automatic leather cutting and rolling device

Also Published As

Publication number Publication date
EP0497105A1 (en) 1992-08-05
DE59207021D1 (en) 1996-10-10
US5316231A (en) 1994-05-31
DE4103057A1 (en) 1992-08-06
JPH0558521A (en) 1993-03-09
DE4103057C2 (en) 1994-07-14

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