EP0497105A1 - Unwinding device for reels - Google Patents

Unwinding device for reels Download PDF

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Publication number
EP0497105A1
EP0497105A1 EP92100306A EP92100306A EP0497105A1 EP 0497105 A1 EP0497105 A1 EP 0497105A1 EP 92100306 A EP92100306 A EP 92100306A EP 92100306 A EP92100306 A EP 92100306A EP 0497105 A1 EP0497105 A1 EP 0497105A1
Authority
EP
European Patent Office
Prior art keywords
bearing housing
unwinding device
clamping head
piston
cylinder unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92100306A
Other languages
German (de)
French (fr)
Other versions
EP0497105B1 (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
Jagenberg AG
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, Jagenberg AG 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
Expired - Lifetime legal-status Critical Current

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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 axially between the clamping heads during unwinding and is held by these, are used for unwinding paper or cardboard webs before subsequent processing machines, for. 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 generic unwinding 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 unwinding 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 in a complex manner.
  • the object of the invention is to simplify the construction of a generic unwinding device, which is able to lift winding rolls from the floor into the unwinding position, for unwinding heavy winding rolls.
  • the unwinding device can be built very compact 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.
  • a pulling linear actuator according to claim 2 can be implemented in a structurally simple manner, in the central arrangement of the clamping head on a bearing housing guided on both sides in vertical guides, the axial forces occurring during clamping of a full winding roll are evenly absorbed by the guides.
  • a piston-cylinder unit as a linear actuator according to claim 4 is able to apply the necessary forces when lifting heavy winding rolls, in particular a space-saving vertical arrangement is made possible (claim 5), which can be translated according to claim 6 in a ratio 2/1 in order to be able to use a piston-cylinder unit that only slightly protrudes from the highest position of the clamping heads.
  • the embodiment according to claim 7 contains an advantageous arrangement of the brake, which is required when unwinding at least on a stand.
  • Claims 8 and 9 contain advantageous configurations of a drive for the transverse adjustment of the stand, the drive being particularly space-saving by means of an immovable chain fastened to the floor with a motor fastened 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 on the underside of the base plate 7 engage around the rails 3, 4.
  • Side parts 11, 12 fastened on 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 fastened on 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 one another 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 running direction of the web, which extend into 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 the clamping head 18 and the brake 20 is shown in dashed lines in the lower unloading position for a roller rest.
  • the bearing housing 16 with the clamping head 18 and the brake 20 can be lifted off 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 axis 29 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 fastened at one end to the crossbar 8 and at 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 translation of the movement of the piston rod 24 onto the bearing housing 16.
  • the unwinding device is thus capable of lifting a full winding roll 21 itself, which is transported by a floor conveyor, 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 a plurality of unwinding 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 into 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 running 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 handed over to the floor conveyor by moving the stands 1, 2 apart.

Landscapes

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

Abstract

Unwinding devices for reels (21) are known, having two posts (1, 2) disposed at a distance from each other, in each of which a clamping head (18), which can be retracted into the sleeve of the reel (21), is mounted so as to be rotatable. In order to raise the reels (21), the clamping heads (18) can be vertically moved by means of a lifting drive (23, 24). …<??>According to the invention a bearing housing (16) is mounted in each of the posts (1, 2), which are movable transversely to the direction of web travel, so that said bearing housing can be raised and lowered, and on which is attached a clamping head (18). The lift drive (piston-cylinder unit 23, 24) acts on the bearing housing (16) symmetrically to the vertical (29) through the axis of rotation (22) of the clamping head (18). This avoids torques around an axis parallel to the axis of rotation (22) thus permitting a simplification of the design. …<IMAGE>…

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 axially between the clamping heads during unwinding and is held by these, are used for unwinding paper or cardboard webs before subsequent processing machines, for. 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 gattungsgemäße 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 generic unwinding 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 unwinding 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 in a complex manner.

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Abrollvorrichtung, die in der Lage ist, Wickelrollen vom Boden bis in die Abwickelposition anzuheben, zum Abwickeln schwerer Wickelrollen konstruktiv zu vereinfachen.The object of the invention is to simplify the construction of a generic unwinding device, which is able to lift winding rolls from the floor into the unwinding position, for unwinding heavy winding rolls.

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

Durch die Befestigung der Spannköpfe an heb- und senkbaren Lagergehäusen, an denen der Hubantrieb symmetrisch zur Senkrechten durch die Drehachse des Spannkopfes angreift, werden Drehmomente um eine Achse parallel zur Drehachse der Spannköpfe vermieden. Dies ermöglicht eine erhebliche Vereinfachung der Konstruktion.By attaching the clamping heads to lifting and lowering bearing housings on which the linear actuator engages symmetrically to the vertical through the axis of rotation of the clamping head, torques around an axis parallel to the axis of rotation of the clamping heads are avoided. This enables a considerable simplification of the construction.

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 compact 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.

Während ein ziehender Hubantrieb nach Anspruch 2 sich konstruktiv einfach realisieren läßt, werden bei der zentralen Anordnung des Spannkopfes an einem beidseitig in senkrechten Führungen geführten Lagergehäuse nach Anspruch 3 die beim Einspannen einer vollen Wickelrolle auftretenden axialen Kräfte gleichmäßig von den Führungen aufgenommen.While a pulling linear actuator according to claim 2 can be implemented in a structurally simple manner, in the central arrangement of the clamping head on a bearing housing guided on both sides in vertical guides, the axial forces occurring during clamping of a full winding roll are evenly absorbed by the guides.

Eine Kolben-Zylinder-Einheit als Hubantrieb nach Anspruch 4 ist in der Lage, die erforderlichen Kräfte beim Anheben schwerer Wickelrollen aufzubringen, insbesondere wird eine platzsparende senkrechte Anordnung ermöglicht (Patentanspruch 5), die nach Anspruch 6 in einem Verhältnis 2/1 übersetzt werden kann, um eine Kolben-Zylinder-Einheit einsetzen zu können, die nur wenig über die höchste Position der Spannköpfe hinausragt.A piston-cylinder unit as a linear actuator according to claim 4 is able to apply the necessary forces when lifting heavy winding rolls, in particular a space-saving vertical arrangement is made possible (claim 5), which can be translated according to claim 6 in a ratio 2/1 in order to be able to use a piston-cylinder unit that only slightly protrudes from the highest position of the clamping heads.

Die Ausgestaltung nach Patentanspruch 7 enthält eine vorteilhafte Anordnung der Bremse, die beim Abwickeln zumindest an einem Ständer erforderlich ist.The embodiment according to claim 7 contains an advantageous arrangement of the brake, which is required when unwinding at least on a stand.

Die Patentansprüche 8 und 9 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 8 and 9 contain advantageous configurations of a drive for the transverse adjustment of the stand, the drive being particularly space-saving by means of an immovable chain fastened to the floor with a motor fastened 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 using a simplified embodiment.
  • 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 zuund 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 on the underside of the base plate 7 engage around the rails 3, 4. Side parts 11, 12 fastened on 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 fastened on 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 one another 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 running direction of the web, which extend into 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 the clamping head 18 and the brake 20 is shown in dashed lines in the lower unloading position for a roller rest.

Das Lagergehäuse 16 mit dem Spannkopf 18 und der Bremse 20 ist mittels eines Hubantriebs, der symmetrisch zur Senkrechten 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 off 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 axis 29 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 fastened at one end to the crossbar 8 and at 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 translation of the movement of the piston rod 24 onto 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 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 lifting drives acts symmetrically to the vertical 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 itself, which is transported by a floor conveyor, 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 a plurality of unwinding 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 into 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 running 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 handed over to the floor conveyor by moving the stands 1, 2 apart.

Claims (9)

Abrollvorrichtung für eine Wickelrolle (21) mit zwei mit Abstand voneinander angeordneten Ständern (1, 2), in denen jeweils ein in die Hülse der Wickelrolle (21) einfahrbarer Spannkopf (18) drehbar gelagert ist, wobei die Spannköpfe (18) zum Anheben der Wickelrolle (21) mittels eines Hubantriebs vertikal bewegbar sind, dadurch gekennzeichnet, daß in den quer zur Bahnlaufrichtung verfahrbaren Ständern (1, 2) jeweils ein Lagergehäuse (16) heb- und senkbar gelagert ist, an dem ein Spannkopf (18) befestigt ist, und daß der Hubantrieb (Kolben-Zylinder-Einheit 23, 24) an dem Lagergehäuse (16) symmetrisch zur Senkrechten (29) durch die Drehachse (22) des Spannkopfes (18) angreift.Unwinding device for a winding roll (21) with two spaced-apart stands (1, 2), in each of which a clamping head (18) which can be moved into the sleeve of the winding roll (21) is rotatably mounted, the clamping heads (18) for lifting the Winding roll (21) can be moved vertically by means of a lifting drive, characterized in that in the stands (1, 2) which can be moved transversely to the web running direction, in each case a bearing housing (16) is mounted such that it can be raised and lowered, to which a tensioning head (18) is fastened, and that the lifting drive (piston-cylinder unit 23, 24) engages on the bearing housing (16) symmetrically to the vertical (29) through the axis of rotation (22) of the clamping head (18). Abrollvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Hubantrieb (Kolben-Zylinder-Einheit 23, 24) senkrecht oberhalb des Spannkopfes (18) angreift.Unwinding device according to claim 1, characterized in that the lifting drive (piston-cylinder unit 23, 24) acts vertically above the clamping head (18). Abrollvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Spannkopf (18) zentral an dem beidseitig in senkrechten Führungen (Stützen 5, 6) geführten Lagergehäuse (16) befestigt ist.Unwinding device according to claim 1 or 2, characterized in that the clamping head (18) is attached centrally to the bearing housing (16) guided on both sides in vertical guides (supports 5, 6). Abrollvorrichtung nach einem der Ansprüche 1 bis 3, gekennzeichnet durch eine senkrecht angeordnete Kolben-Zylinder-Einheit (23, 24) als Hubantrieb.Unwinding device according to one of claims 1 to 3, characterized by a vertically arranged piston-cylinder unit (23, 24) as a lifting drive. Abrollvorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Kolben-Zylinder-Einheit (23, 24) in Bahnlaufrichtung seitlich neben einer als senkrechte Führung dienenden Stütze (6) angeordnet ist und über eine Zugkette (26) mit dem Lagergehäuse (16) verbunden ist.Unwinding device according to claim 4, characterized in that the piston-cylinder unit (23, 24) is arranged laterally in the web running direction next to a support (6) serving as a vertical guide and is connected to the bearing housing (16) via a pull chain (26) . Abrollvorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die Kolben-Zylinder-Einheit (23, 24) über eine 2/1-Übersetzung mit dem Lagergehäuse (16) verbunden ist.Unwinding device according to claim 4 or 5, characterized in that the piston-cylinder unit (23, 24) is connected to the bearing housing (16) via a 2/1 ratio. Abrollvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß zumindest der Spannkopf (18) an einem Ständer (1 bzw. 2) mit einer außen an dem Lagergehäuse (16) befestigten Bremse (20) verbunden ist.Unwinding device according to one of Claims 1 to 6, characterized in that at least the clamping head (18) is connected on a stand (1 or 2) to a brake (20) attached to the outside of the bearing housing (16). Abrollvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß jeder Ständer (1, 2) am Boden auf Schienen (3, 4) gelagert ist und mittels eines an dem jeweiligen Ständer (1, 2) befestigten Motors (13) quer zur Bahnlaufrichtung verfahrbar ist.Unwinding device according to one of claims 1 to 7, characterized in that each stand (1, 2) is mounted on the floor on rails (3, 4) and by means of a motor (13) fastened to the respective stand (1, 2) transversely to Web direction is movable. Abrollvorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß parallel zu den Schienen (3, 4) am Boden eine unbewegbare Kette (15) befestigt ist, die ein Ritzel (14) des Motors (13) teilweise umschlingt.Unwinding device according to claim 8, characterized in that an immovable chain (15) is attached to the floor parallel to the rails (3, 4) and partially wraps around 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

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

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EP (1) EP0497105B1 (en)
JP (1) JPH0558521A (en)
DE (2) DE4103057C2 (en)

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JP5411217B2 (en) * 2011-08-05 2014-02-12 東芝テック株式会社 Printer
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US6042047A (en) * 1997-04-03 2000-03-28 Jagenberg Papiertechnik Gmbh Unwinder device for reels

Also Published As

Publication number Publication date
DE4103057A1 (en) 1992-08-06
EP0497105B1 (en) 1996-09-04
DE59207021D1 (en) 1996-10-10
JPH0558521A (en) 1993-03-09
DE4103057C2 (en) 1994-07-14
US5316231A (en) 1994-05-31

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