EP0453800B1 - Tensioning head - Google Patents

Tensioning head Download PDF

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Publication number
EP0453800B1
EP0453800B1 EP91104869A EP91104869A EP0453800B1 EP 0453800 B1 EP0453800 B1 EP 0453800B1 EP 91104869 A EP91104869 A EP 91104869A EP 91104869 A EP91104869 A EP 91104869A EP 0453800 B1 EP0453800 B1 EP 0453800B1
Authority
EP
European Patent Office
Prior art keywords
clamping
mandrel
supporting arm
ring
sleeve
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
EP91104869A
Other languages
German (de)
French (fr)
Other versions
EP0453800A3 (en
EP0453800A2 (en
Inventor
Josef Hammer
Walter Thuer
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0453800A2 publication Critical patent/EP0453800A2/en
Publication of EP0453800A3 publication Critical patent/EP0453800A3/en
Application granted granted Critical
Publication of EP0453800B1 publication Critical patent/EP0453800B1/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
    • 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
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/418—Changing web roll
    • B65H2301/4185—Core or mandrel discharge or removal, also organisation of core removal
    • B65H2301/41856—Core or mandrel discharge or removal, also organisation of core removal by stripping core from mandrel or chuck, e.g. by spring mechanism

Definitions

  • the invention relates to a clamping head for a web wound on a sleeve with a support arm and a mandrel arranged therein and insertable into the sleeve.
  • Clamping heads of this type are used, for example, to fix a paper web roll in roll changers of web-fed rotary printing machines.
  • the invention has for its object to provide a generic chuck that has a simple structure, Space-saving ejector for the sleeve of a developed web, which does not require its own drive.
  • a clamping head according to the invention is characterized in that, despite the arrangement of an ejector, it enables a very rigid mounting for the mandrel, since the support arm and thus the front bearing for the mandrel can be advanced far towards the tip of the mandrel, but without the Travel to adjust the side edge of the web to be unwound from the roll is restricted inadmissible.
  • FIG. 1 An embodiment of the invention is shown.
  • the drawing shows a longitudinal section through the essential parts of a clamping head according to the invention.
  • the clamping head comprises a support arm 1.
  • the support arm 1 can be firmly connected to a fixed side wall or to the arms of a roller star.
  • a gearwheel 2 is rotatably mounted in the support arm 1, the teeth of which are connected to a rack 3 of a bearing bush 4 comb.
  • the bearing bush 4 is guided axially displaceably in the support arm 1.
  • the gear 3 can be operated in a manner not shown either by hand or by means of a servomotor.
  • a mandrel 6 is rotatable by means of a front roller bearing 5 and a further roller bearing, not shown, but is axially immovable relative to the bearing bush 4.
  • the free end of the mandrel 6 protruding from the bearing bush 4 is provided with spreading jaws 7 known per se, not shown in more detail, for fixing a slid-on sleeve of a web roll.
  • An end face 8 of a clamping ring 9 forms a stop for the sleeve to be pushed on.
  • the support arm 1 has an end face 10 with a plurality of cylindrical recesses 11. Three cylindrical recesses 11 are expediently provided.
  • a guide pin 12 with a cylindrical head 13 of larger diameter protrudes through each of the cylindrical recesses 11.
  • the guide bush 14 has at its end facing the support arm 1 an annular, inwardly extending extension 16. With the inner surface of the extension 16, the guide bush 14 is slidably mounted on the guide pin 12.
  • the annular extension 16 also forms an abutment for one end of a helical compression spring 17 which surrounds the guide pin 12. The other end of the compression spring 17 is supported on the head 13 of the guide pin 12.
  • the inner diameter of the ejector ring 18 is only slightly larger than its outer diameter facing the end face 8 of the clamping ring 9. It is smaller than the outer diameter 19, indicated by dashed lines, of a sleeve to be ejected.
  • the end face 20 of the ejector ring 18 is also shown in the position in which the mandrel 6 is extended as far in the direction of the arrow "a" as is necessary for clamping a sleeve of a web roll.
  • the compression spring 17 ensures that the ejector ring 18 rests on the end face 21 of the bearing bush 4 in a force-fitting manner and thus a constant distance "c" is always maintained so that the static ejector ring 18 can never start on the rotating sleeve of a web roll.
  • This configuration makes it possible to move the mandrel 6 to adjust the side edge of the web to be unwound by a certain path in the direction of the arrow "a" or "b” without the ejector ring 18 exerting an axially acting force on the clamped sleeve.
  • the mandrel 6 is moved by means of the toothed wheel 2 over the toothed bearing bush 4 in the direction of arrow "b".
  • the ejector ring 18 stops and begins to exert a force acting in the stripping direction on the sleeve.
  • the mandrel 6 now continues until the edge 23 of the mandrel disappears under the end face 20 of the ejector ring 18 and thus a reliable stripping of the sleeve is ensured.

Landscapes

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

Description

Die Erfindung betrifft einen Spannkopf für eine auf einer Hülse aufgewickelte Bahn mit einem Tragarm und einem darin angeordneten, in die Hülse einführbaren Spanndorn.The invention relates to a clamping head for a web wound on a sleeve with a support arm and a mandrel arranged therein and insertable into the sleeve.

Derartige Spannköpfe werden beispielsweise zur Festlegung einer Papierbahnrolle in Rollenwechslern von Rollenrotationsdruckmaschinen eingesetzt.Clamping heads of this type are used, for example, to fix a paper web roll in roll changers of web-fed rotary printing machines.

Aus der DE 28 14 338 A1 ist bereits ein Spannkopf für auf Hülsen aufgewickelte Warenbahnen bekannt, der einen drehbaren, aber nicht verschiebbaren Spanndorn und einen Auswerferring zum Abstreifen der Hülsen aufweistFrom DE 28 14 338 A1 a tensioning head for webs wound on sleeves is already known, which has a rotatable but not displaceable tensioning mandrel and an ejector ring for stripping off the sleeves

Der Erfindung liegt die Aufgabe zugrunde, einen gattungsgemäßen Spannkopf zu schaffen, der einen einfach aufgebauten,
Platz sparenden, keinen eigenen Antrieb benötigenden Auswerfer für die Hülse einer abgewickelten Bahn aufweist.The invention has for its object to provide a generic chuck that has a simple structure,
Space-saving ejector for the sleeve of a developed web, which does not require its own drive.

Erfindungsgemäß wird dies durch Anwendung der Merkmale des Kennzeichens des Anspruchs 1 erreicht.According to the invention, this is achieved by applying the features of the characterizing part of claim 1.

Ein erfindungsgemäßer Spannkopf zeichnet sich dadurch aus, daß er trotz der Anordnung eines Auswerfers eine sehr steife Lagerung für den Spanndorn ermöglicht, da der Tragarm und damit das vordere Lager für den Spanndorn weit in Richtung zur Spitze des Spanndornes vorgezogen werden kann, ohne daß jedoch der Stellweg zur Einstellung der Seitenkante der von der Rolle abzuwickelnden Bahn unzulässig beschränkt wird.A clamping head according to the invention is characterized in that, despite the arrangement of an ejector, it enables a very rigid mounting for the mandrel, since the support arm and thus the front bearing for the mandrel can be advanced far towards the tip of the mandrel, but without the Travel to adjust the side edge of the web to be unwound from the roll is restricted inadmissible.

Auf der Zeichnung ist ein Ausführungsbeispiel der Erfindung wiedergegeben. Die Zeichnung zeigt einen Längsschnitt durch die erfindungsgemäß wesentlichen Teile eines Spannkopfes.In the drawing, an embodiment of the invention is shown. The drawing shows a longitudinal section through the essential parts of a clamping head according to the invention.

Der Spannkopf umfaßt einen Tragarm 1. Der Tragarm 1 kann an einer festen Seitenwand oder an den Armen eines Rollensternes fest angeschlossen sein. In dem Tragarm 1 ist ein Zahnrad 2 drehbar gelagert, dessen Zähne mit einer Zahnstange 3 einer Lagerbuchse 4 kämmen. Die Lagerbuchse 4 ist im Tragarm 1 axial verschiebbar geführt. Das Zahnrad 3 kann in nicht näher dargestellter Weise entweder von Hand oder mittels eines Stellmotors betätigt werden. Im Innenraum der Lagerbuchse 4 ist mittels eines vorderen Wälzlagers 5 sowie eines weiteren nicht dargestellten, rückwärtigen Wälzlagers ein Spanndorn 6 drehbar, aber gegenüber der Lagerbuchse 4 axial unverschiebbar gelagert. Das aus der Lagerbuchse 4 herausragende freie Ende des Spanndornes 6 ist mit an sich bekannten, nicht näher dargestellten Spreizbacken 7 zum Festlegen einer aufgeschobenen Hülse einer Bahnrolle versehen. Dabei bildet eine Stirnfläche 8 eines Spannringes 9 einen Anschlag für die aufzuschiebende Hülse.The clamping head comprises a support arm 1. The support arm 1 can be firmly connected to a fixed side wall or to the arms of a roller star. A gearwheel 2 is rotatably mounted in the support arm 1, the teeth of which are connected to a rack 3 of a bearing bush 4 comb. The bearing bush 4 is guided axially displaceably in the support arm 1. The gear 3 can be operated in a manner not shown either by hand or by means of a servomotor. In the interior of the bearing bush 4, a mandrel 6 is rotatable by means of a front roller bearing 5 and a further roller bearing, not shown, but is axially immovable relative to the bearing bush 4. The free end of the mandrel 6 protruding from the bearing bush 4 is provided with spreading jaws 7 known per se, not shown in more detail, for fixing a slid-on sleeve of a web roll. An end face 8 of a clamping ring 9 forms a stop for the sleeve to be pushed on.

Der Tragarm 1 weist eine Stirnseite 10 mit mehreren zylindrischen Ausnehmungen 11 auf. Zweckmäßig sind drei zylindrische Ausnehmungen 11 vorgesehen. Durch jede der zylindrischen Ausnehmungen 11 ragt ein Führungsstift 12 mit einem zylindrischen Kopf 13 größeren Durchmessers. Auf dem Kopf 13 ist eine Führungsbuchse 14 mit ihrer Innenfläche 15 gleitend gelagert. Die Führungsbuchse 14 weist an ihrem dem Tragarm 1 zugewandten Ende einen ringförmigen, sich nach innen erstreckenden Ansatz 16 auf. Mit der Innenfläche des Ansatzes 16 ist die Führungsbuchse 14 auf dem Führungsstift 12 gleitend gelagert. Der ringförmige Ansatz 16 bildet gleichzeitig ein Widerlager für das eine Ende einer schraubenförmigen Druckfeder 17, die den Führungsstift 12 umgibt. Das ander Ende der Druckfeder 17 stützt sich am Kopf 13 des Führungsstiftes 12 ab. Fest mit der Führungsbuchse 14 ist ein Auswerferring 18 verbunden, der den Spanndorn 6 außen umgibt. Der Innendurchmesser des Auswerferringes 18 ist nur geringfügig größer als sein der Stirnfläche 8 des Spannringes 9 zugewandter Außendurchmesser. Er ist kleiner als der gestrichelt angedeutete Außendurchmesser 19 einer auszuwerfenden Hülse. Die Stirnfläche 20 des Auswerferrings 18 ist weiterhin in der Position dargestellt, in der der Spanndorn 6 soweit in Richtung des Pfeiles "a" ausgefahren ist, wie es zum Aufspannen einer Hülse einer Bahnrolle erforderlich ist. Durch die Druckfeder 17 ist gewährleistet, daß der Auswerferring 18 an der Stirnfläche 21 der Lagerbuchse 4 kraftschlüssig anliegt und somit immer ein konstanter Abstand "c" eingehalten wird, damit der statische Auswerferring 18 niemals an der rotierenden Hülse einer Bahnrolle anlaufen kann. Diese Ausgestaltung ermöglicht es, den Spanndorn 6 zur Einstellung der Seitenkante der abzuwickelnden Bahn um einen bestimmten Weg in Richtung des Pfeiles "a" oder "b" zu verfahren, ohne daß der Auswerferring 18 eine axial wirkende Kraft auf die aufgespannte Hülse ausübt.The support arm 1 has an end face 10 with a plurality of cylindrical recesses 11. Three cylindrical recesses 11 are expediently provided. A guide pin 12 with a cylindrical head 13 of larger diameter protrudes through each of the cylindrical recesses 11. On the head 13, a guide bush 14 is slidably mounted with its inner surface 15. The guide bush 14 has at its end facing the support arm 1 an annular, inwardly extending extension 16. With the inner surface of the extension 16, the guide bush 14 is slidably mounted on the guide pin 12. The annular extension 16 also forms an abutment for one end of a helical compression spring 17 which surrounds the guide pin 12. The other end of the compression spring 17 is supported on the head 13 of the guide pin 12. An ejector ring 18, which surrounds the mandrel 6 on the outside, is fixedly connected to the guide bush 14. The inner diameter of the ejector ring 18 is only slightly larger than its outer diameter facing the end face 8 of the clamping ring 9. It is smaller than the outer diameter 19, indicated by dashed lines, of a sleeve to be ejected. The end face 20 of the ejector ring 18 is also shown in the position in which the mandrel 6 is extended as far in the direction of the arrow "a" as is necessary for clamping a sleeve of a web roll. The compression spring 17 ensures that the ejector ring 18 rests on the end face 21 of the bearing bush 4 in a force-fitting manner and thus a constant distance "c" is always maintained so that the static ejector ring 18 can never start on the rotating sleeve of a web roll. This configuration makes it possible to move the mandrel 6 to adjust the side edge of the web to be unwound by a certain path in the direction of the arrow "a" or "b" without the ejector ring 18 exerting an axially acting force on the clamped sleeve.

Befindet sich auf dem Spanndorn 6 eine Hülse einer Bahnrolle, die ausgeworfen werden soll, so wird der Spanndorn 6 mittels des Zahnrades 2 über die verzahnte Lagerbuchse 4 in Richtung des Pfeiles "b" bewegt. Sobald der Spanndorn 6 soweit zurückgefahren wurde, daß die hintere Stirnfläche 22 des Auswerferrings 18 an der Stirnfläche 10 des Tragarms 1 zum Anliegen kommt, bleibt der Auswerferring 18 stehen und beginnt, auf die Hülse eine in Abstreifrichtung wirkende Kraft auszuüben. Der Spanndorn 6 fährt nun solange weiter, bis die Kante 23 des Spanndorns unter der Stirnfläche 20 des Auswerferrings 18 verschwindet und somit ein sicheres Abstreifen der Hülse gewährleistet ist.If there is a sleeve of a web roll on the mandrel 6 that is to be ejected, the mandrel 6 is moved by means of the toothed wheel 2 over the toothed bearing bush 4 in the direction of arrow "b". As soon as the mandrel 6 has been retracted so far that the rear end face 22 of the ejector ring 18 comes to rest against the end face 10 of the support arm 1, the ejector ring 18 stops and begins to exert a force acting in the stripping direction on the sleeve. The mandrel 6 now continues until the edge 23 of the mandrel disappears under the end face 20 of the ejector ring 18 and thus a reliable stripping of the sleeve is ensured.

Claims (4)

  1. Clamping head for a web wound onto a sleeve with a supporting arm (1), a clamping mandrel (6) insertable in the sleeve and an ejector ring (18) surrounding the clamping mandrel (6) and movable on the supporting arm (1) parallel to the direction of movement of the clamping mandrel (6) for stripping the sleeve from the clamping mandrel (6), characterised in that the clamping mandrel (6) is arranged displaceably in the supporting arm (1) and that the ejector ring (18) is resiliently supported with respect to the supporting arm (1).
  2. Clamping head in accordance with claim 1, characterised in that several guide pins (1) are fixed on the end (10) of the supporting arm (1) and on each supporting pin (12) is displaceably positioned a guide bushing (14) fixed to the ejector ring (18).
  3. Clamping head in accordance with claim 2, characterised in that the inner surface (15) of each guide bushing (14) is slidable on a cylindrical head (13) of the guide pin (12), one end of a compression spring (17) surrounding the guide pin (12) rests against the cylindrical head (13), the other end being supported on a ring-shaped shoulder (16) of the guide bushing (14) and the inner surface of the ring-shaped shoulder (16) being slidably mounted on the guide pin (12).
  4. Clamping head according to one of the preceding claims, characterised in that in the entry position of the clamping mandrel (6) the ejector ring (18) rests against an axially adjustable bearing bushing (4) receiving the clamping mandrel (6) in a rotatable but axially fixed manner, and between a rear face (22) of the ejector ring (18) and an end face (10) of the supporting arm (1) there is a distance permitting a web edge adjustment.
EP91104869A 1990-04-25 1991-03-27 Tensioning head Expired - Lifetime EP0453800B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4013092 1990-04-25
DE4013092A DE4013092C1 (en) 1990-04-25 1990-04-25

Publications (3)

Publication Number Publication Date
EP0453800A2 EP0453800A2 (en) 1991-10-30
EP0453800A3 EP0453800A3 (en) 1993-08-11
EP0453800B1 true EP0453800B1 (en) 1996-08-21

Family

ID=6405008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91104869A Expired - Lifetime EP0453800B1 (en) 1990-04-25 1991-03-27 Tensioning head

Country Status (5)

Country Link
US (1) US5123604A (en)
EP (1) EP0453800B1 (en)
JP (1) JPH04223958A (en)
CA (1) CA2037338C (en)
DE (2) DE4013092C1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10224839A1 (en) * 2002-06-05 2004-01-08 Koenig & Bauer Ag Drive system for mandrel carrying roll of paper has retainer on inner circumference of roll and carrier elements transmitting torque to roll and engaging with roll in non-positive manner
DE10330302B4 (en) * 2003-07-04 2005-12-08 Koenig & Bauer Ag Device for receiving a supply roll with a trunnion
EP1731464A2 (en) 2002-06-05 2006-12-13 Koenig & Bauer Aktiengesellschaft Chuck for holding a material roll

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137484C2 (en) * 1991-11-14 1995-06-29 Roland Man Druckmasch Mandrel
DE19714551C2 (en) * 1997-04-09 2002-02-28 Roland Man Druckmasch Device for aligning a roll of printing material
JP3451437B2 (en) * 2001-03-15 2003-09-29 株式会社東京機械製作所 Web support device
DE10150810B4 (en) 2001-10-15 2011-01-13 Wifag Maschinenfabrik Ag Reel changer and method for removing a residual roll
DE20120240U1 (en) * 2001-12-14 2003-04-24 G. + L. Heikaus Kunststoffverarbeitung und Verpackungen GmbH, 51674 Wiehl Device for the production of film rolls
DE502005000503D1 (en) * 2004-01-30 2007-05-03 Koenig & Bauer Ag ROLL CHANGER
DE102004021604A1 (en) * 2004-05-03 2005-12-01 Koenig & Bauer Ag Process for breaking down a roll of material
DE102005060638A1 (en) * 2005-12-13 2007-06-14 Hauni Maschinenbau Ag Bobbins handling device, has mechanism with bobbin handling unit that is arranged in such a manner that it is vertically movable in Z-direction to slides, which are movable along vertical axis
WO2019102343A1 (en) * 2017-11-21 2019-05-31 Re S.P.A. - Controlli Industriali Telescopic linear actuator of a type connectable to an arm of a movable arm unwinder
CN110626867B (en) * 2019-08-22 2021-01-22 荣成市红旗针织服装有限公司 Automatic bobbin winder of textile machinery
CN111620188B (en) * 2020-06-01 2021-09-14 台州巨壹塑业有限公司 Pipe winding device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1524967A (en) * 1974-11-13 1978-09-13 Sissons A J Roll-handling equipment
DE2814338C2 (en) * 1978-04-03 1982-04-22 Jagenberg-Werke AG, 4000 Düsseldorf Clamping head for material webs wound on cores
JPH0213413Y2 (en) * 1985-09-02 1990-04-13
DD273417A1 (en) * 1988-06-30 1989-11-15 Polygraph Leipzig BEARING ARRANGEMENT FOR CLAMPING CABLE WAVES
US4951894A (en) * 1988-10-17 1990-08-28 Young Engineering, Inc. Method and apparatus for handling rolls of textile fabrics and other webs

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10224839A1 (en) * 2002-06-05 2004-01-08 Koenig & Bauer Ag Drive system for mandrel carrying roll of paper has retainer on inner circumference of roll and carrier elements transmitting torque to roll and engaging with roll in non-positive manner
DE10224839B4 (en) * 2002-06-05 2005-08-04 Koenig & Bauer Ag mandrel
EP1731464A2 (en) 2002-06-05 2006-12-13 Koenig & Bauer Aktiengesellschaft Chuck for holding a material roll
DE10261968B4 (en) * 2002-06-05 2007-03-22 Koenig & Bauer Ag Method for producing a driver element for a mandrel
DE10330302B4 (en) * 2003-07-04 2005-12-08 Koenig & Bauer Ag Device for receiving a supply roll with a trunnion

Also Published As

Publication number Publication date
DE4013092C1 (en) 1991-09-26
DE59108092D1 (en) 1996-09-26
US5123604A (en) 1992-06-23
JPH04223958A (en) 1992-08-13
EP0453800A3 (en) 1993-08-11
CA2037338C (en) 1994-12-27
EP0453800A2 (en) 1991-10-30

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