EP0699612A2 - Folding apparatus - Google Patents

Folding apparatus Download PDF

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Publication number
EP0699612A2
EP0699612A2 EP95108275A EP95108275A EP0699612A2 EP 0699612 A2 EP0699612 A2 EP 0699612A2 EP 95108275 A EP95108275 A EP 95108275A EP 95108275 A EP95108275 A EP 95108275A EP 0699612 A2 EP0699612 A2 EP 0699612A2
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EP
European Patent Office
Prior art keywords
spring
roller
lever
arm
folding apparatus
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
EP95108275A
Other languages
German (de)
French (fr)
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EP0699612B1 (en
EP0699612A3 (en
Inventor
Kevin F. Albert
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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Publication date
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Publication of EP0699612A2 publication Critical patent/EP0699612A2/en
Publication of EP0699612A3 publication Critical patent/EP0699612A3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/58—Article switches or diverters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
    • B65H2404/2613—Means for changing the transport path, e.g. deforming, lengthening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1932—Signatures, folded printed matter, newspapers or parts thereof and books

Definitions

  • the invention relates generally to a printing press and, more particularly, to an insertion belt mechanism of a folder for a printing press for displaying signatures.
  • Entry belt systems are commonly used to convey signatures from a press to a stack.
  • An infeed belt system typically includes several infeed belt mechanisms spaced side by side so that they come in contact with the signatures across their width.
  • Each infeed belt mechanism includes an infeed belt on one side and a corresponding counter-rotating infeed belt on the other side to form a signature pass so that the signature can be gripped on both sides and conveyed through the signature pass.
  • the signatures often leave the signature run in order to be accommodated in the pockets of one or more paddlewheels.
  • the signatures are then placed on a stack, as in the U.S. Patent No. 5,112,033, which is hereby incorporated as a reference patent.
  • the infeed belts normally have guide rollers and a drive roller which are arranged on the inside of the infeed belt for guiding and driving it.
  • One exit roller is usually fixed while the other exit roller is fixed in the direction of the attached roller is biased by a single spring to maintain the hard grip on the signature when entering a paddle wheel.
  • This hard grip or pressure is necessary to support the transport of the signatures into the paddle wheels and their inclusion in them.
  • the exit rollers which are spring-loaded, hit this gap between the signatures, they press against the firmly attached rollers and release again when they hit the front edge of the next signature. This creates an oscillation phenomenon, which places a high dynamic load on the fixed rollers.
  • Another object of the invention is to prevent premature wear of bearings, belts, or other components.
  • the present invention thus provides a folder which has the following features: at least one infeed belt mechanism with a first infeed belt and a first exit roller and one corresponding second infeed belt and a second outlet roller, the first and second infeed belts forming a signature run for displaying the signatures; the first exit roller is rotatable about a first roller axis, but is otherwise fixed; a lever supporting the second exit roller, the second exit roller being rotatably supported on the lever about a second roller axis; an arm connected to the lever having a first side and an opposite second side; a first spring acting against the first side of the arm to urge the lever and the second exit roller toward the first exit roller; and a second spring acting against the second side of the arm.
  • This double spring arrangement reduces the beating that occurs when the signatures pass through the infeed belt mechanism and at the same time prevents premature wear of the bearings, belts and other components.
  • Fig. 1 shows a conventional folder 1 for a web-fed rotary printing press.
  • the printed web is over a funnel 30 passed and folded. After folding, the web is passed through the nip between respective upper and lower pull rollers 31 and 32 and guide rollers 33 and arrives at a cutting cylinder 34 on which the web is cut off and signatures are formed.
  • a web separator 35 is located between the upper and lower pull rollers 31 and 32.
  • the signatures are then conveyed through an introduction belt system 2 into the respective pockets 50 and 51 of respective paddle wheels 40 and 41. During the rotation of the paddle wheels 40 and 41, the signatures are placed on respective stacks 55 and 56.
  • the infeed belt system 2 comprises at least one infeed belt mechanism and preferably more than one side-by-side and parallel infeed belt mechanism with coaxial exit rollers, including a first infeed belt mechanism 10 for gripping the signatures across their width.
  • the first infeed belt mechanism 10 includes a left infeed belt 11 and a corresponding right infeed belt 21 which form a signature pass for the respective signatures, as shown by the signatures 3 and 4 in FIG. 2. When the signatures pass through, there is a gap 5 between the rear edge of the signature 3 and the front edge of the signature 4.
  • the infeed belt mechanism 10 also comprises top left rollers 13 and top right rollers 23, which guide rollers or drive rollers for guiding and driving the respective left and right insertion belt 11 and 21 can be.
  • the infeed belt mechanism 10 further includes a left exit roller 15 and a corresponding right exit roller 25.
  • FIG. 2 shows the infeed band mechanism 10, ie an infeed band mechanism, preferably arranged side by side, which has a left infeed band 11 and includes a corresponding right entry belt 21.
  • the left exit roller 15 is supported at one end of a left lever 16, and the left end 16 is fastened at its other end to a bush 18 which is rotatable about a stud 17.
  • the stud 17 is attached to a frame part 28 such that the left lever 16 and the left exit roller 15 can be acted upon by a spring preload against the right exit roller 25, as will be described in more detail below.
  • the right exit roller 25 is supported at one end of a right lever 26, and the other end of the right lever 26 is supported on a fixed stud 27, which is fixed to the frame part 28, so that the right exit roller 25 can rotate, but is translationally fixed during operation.
  • An arm 29 with an upper and lower side is also fastened to the bush 18 by means of a clamping bolt.
  • a coil spring 60 is wound around a bias bolt 62 having a bolt head 63 and is movable between the bolt head 63 and the top of the arm 29.
  • the preload bolt 62 is screwed into a mounting piece 65 fastened to the frame part 28 and also penetrates through a hole in the arm 29.
  • the preload of the coil spring 60 can be changed by tightening or loosening the bolt 62.
  • the clamping bolt of the arm 29 can be loosened so that the arm 29 can rotate on the bushing 18 and can be screwed back on later. This can be done without affecting the position of the lever 16, which has its own clamping bolt.
  • a second spring 61 which can be made of a rubber-like material, for example, and preferably a high one Has spring constant.
  • the second spring 61 also preferably has additional damping properties in order to reduce the effects of forces and vibrations.
  • a preferred spring constant for the coil spring would be approximately 22.5-45 kg per 2.54 cm (50-100 lbs / inch) and a preferred spring constant for the second spring is about 225-450 kg per 2.54 cm (500-1000 lbs / inch), however the optimal spring constant may vary depending on web thickness, normal operating speeds and other factors.
  • the individual signatures 3, 4 are moved between the corresponding infeed belts 11, 21.
  • the spiral spring 60 forces the arm 29 and thus the lever 16 and the left discharge roller 15 to move through the bushing 18 in the direction of the right discharge roller 25.
  • the second spring 61 counteracts this movement.
  • the forces acting on the bolt head 63 are significantly reduced by the existing spring, which has a high spring constant.
  • the illustrated curve 70 shows the variation of the forces acting on the bolt head 63 during operation of the machine, while the illustrated curve 71 shows the effects of forces on a similar bolt head, where only a coil spring acts between one arm and the bolt head.
  • the time period between the vertices of curve 71 is the time period in which an individual signature passes the exit rollers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

Die Erfindung betrifft einen Falzapparat mit mindestens einem Einführbandmechanismus (10) mit einem ersten und einem zweiten Einführband (11, 21) und mit einer ersten und einer zweiten Austrittwalze (15, 25), wobei das erste und das zweite Einführband (11, 21) einen Signaturdurchlauf bilden. Die erste Austrittwalze (15) rotiert um eine Walzenachse, ist jedoch anderweitig fixiert. Ferner ist ein die zweite Austrittwalze (25) stützender Hebel (26) vorgesehen, an welchem diese um eine zweite Walzenachse drehbar gelagert ist. Mit dem Hebel (26) ist ein Arm (29) verbunden. Gegen eine Seite des Armes (29) wirkt eine Feder (60), die den Hebel (26) und die zweite Austrittwalze (25) in Richtung der ersten Austrittwalze (15) zwingt. Gegen die andere Seite des Armes (29) wirkt eine zweite Feder (61). <IMAGE>The invention relates to a folder having at least one infeed belt mechanism (10) with a first and a second infeed belt (11, 21) and with a first and a second outlet roller (15, 25), the first and the second infeed belt (11, 21) form a signature pass. The first exit roller (15) rotates about an axis of the roller, but is otherwise fixed. A lever (26) supporting the second exit roller (25) is also provided, on which the lever is rotatably mounted about a second roller axis. An arm (29) is connected to the lever (26). A spring (60) acts against one side of the arm (29), forcing the lever (26) and the second exit roller (25) in the direction of the first exit roller (15). A second spring (61) acts against the other side of the arm (29). <IMAGE>

Description

Die Erfindung betrifft im allgemeinen eine Druckmaschine und im besonderen einen Einführbandmechanismus eines Falzapparats für eine Druckmaschine zur Auslage von Signaturen.The invention relates generally to a printing press and, more particularly, to an insertion belt mechanism of a folder for a printing press for displaying signatures.

Einführbandsysteme werden gewöhnlich für das Befördern von Signaturen aus einer Druckmaschine auf einen Stapel eingesetzt. Ein Einführbandsystem umfaßt normalerweise mehrere Einführbandmechanismen, die in einem Abstand voneinander Seite an Seite angeordnet sind, so daß sie mit den Signaturen über deren Breite in Kontakt kommen. Jeder Einführbandmechanismus umfaßt ein Einführband an der einen Seite und ein korrespondierendes, in Gegenrichtung umlaufendes Einführband an der anderen Seite, um einen Signaturdurchlauf zu bilden, so daß die Signatur an ihren beiden Seiten ergriffen und durch den Signaturdurchlauf befördert werden kann. Oft verlassen die Signaturen den Signaturdurchlauf, um in den Taschen eines Schaufelrads oder mehrerer Schaufelräder aufgenommen zu werden. Während der Rotation des Schaufelrads oder der Schaufelräder werden dann die Signaturen auf einem Stapel abgelegt, wie in dem U.S. Patent Nr. 5,112,033 beschrieben, das hiermit als Bezugspatent integriert wird.Entry belt systems are commonly used to convey signatures from a press to a stack. An infeed belt system typically includes several infeed belt mechanisms spaced side by side so that they come in contact with the signatures across their width. Each infeed belt mechanism includes an infeed belt on one side and a corresponding counter-rotating infeed belt on the other side to form a signature pass so that the signature can be gripped on both sides and conveyed through the signature pass. The signatures often leave the signature run in order to be accommodated in the pockets of one or more paddlewheels. During the rotation of the impeller or impellers, the signatures are then placed on a stack, as in the U.S. Patent No. 5,112,033, which is hereby incorporated as a reference patent.

Die Einführbänder weisen normalerweise Führungswalzen und eine Antriebswalze auf, welche an der Innenseite des Einführbandes zu dessen Führung und Antrieb angeordnet sind. Es befinden sich Führungswalzen, i.e. Austrittwalzen, an dem unteren Ende des Einführbandes, wo die Signatur austritt.The infeed belts normally have guide rollers and a drive roller which are arranged on the inside of the infeed belt for guiding and driving it. There are guide rollers, i.e. Exit rollers, at the lower end of the infeed belt where the signature exits.

Eine Austrittwalze ist normalerweise fest angebracht, während die andere Austrittwalze in der Richtung der fest angebrachten Walze mit der Vorspannung einer einzigen Feder beaufschlagt ist, um den harten Griff auf die Signatur beim Eintritt in ein Schaufelrad aufrechtzuerhalten. Dieser harte Griff oder Preßdruck ist notwendig, um die Beförderung der Signaturen in die Schaufelräder und deren Aufnahme darin zu unterstützen. Beim Passieren der Signaturen durch die Austrittwalzen ergibt sich ein Anfang-Ende-Spalt zwischen den einzelnen Signaturen, so daß die Spitzen aufeinanderfolgender Schaufelräder zwischen den Signaturen passieren können. Wenn die mit einer Federvorspannung beaufschlagten Austrittwalzen auf diesen Spalt zwischen den Signaturen treffen, drücken diese sich an die fest angebrachten Walzen und lösen sich wieder, wenn sie auf die Vorderkante der nächsten Signatur treffen. Dieses erzeugt ein Schwingungsphänomen, was eine hohe dynamische Belastung für die fest angebrachten Walzen darstellt.One exit roller is usually fixed while the other exit roller is fixed in the direction of the attached roller is biased by a single spring to maintain the hard grip on the signature when entering a paddle wheel. This hard grip or pressure is necessary to support the transport of the signatures into the paddle wheels and their inclusion in them. When the signatures pass through the exit rollers, there is a start-end gap between the individual signatures, so that the tips of successive paddle wheels can pass between the signatures. When the exit rollers, which are spring-loaded, hit this gap between the signatures, they press against the firmly attached rollers and release again when they hit the front edge of the next signature. This creates an oscillation phenomenon, which places a high dynamic load on the fixed rollers.

Vorzeitiger Verschleiß und Versagen der Lager, Bänder oder anderer Komponenten, sowie Reibkorrosion der belasteten Komponenten und Schlupf der die Austrittwalzen haltentenden Austrittwatzenhebel können dann auftreten. Der Ersatz dieser Komponenten kann zeitaufwendig und kostspielig sein.Premature wear and failure of the bearings, belts or other components, as well as fretting corrosion of the loaded components and slippage of the exit trolley levers holding the exit rollers can then occur. Replacing these components can be time consuming and costly.

Es ist eine Aufgabe der vorliegenden Erfindung, das Schlagen, welches durch das Passieren der Signaturen durch die Austrittwalzen des Einführbandmechanismus verursacht wird, zu reduzieren.It is an object of the present invention to reduce the beating caused by the signature passing through the exit rollers of the infeed belt mechanism.

Es ist eine weitere Aufgabe der Erfindung, den vorzeitigen Verschleiß von Lagern, Bändern oder anderen Komponenten zu verhindern.Another object of the invention is to prevent premature wear of bearings, belts, or other components.

Somit sieht die vorliegende Erfindung einen Falzapparat vor, welcher die folgenden Merkmale aufweist:
mindestens einen Einführbandmechanismus mit einem ersten Einführband und einer ersten Austrittwalze und einem korrespondierenden zweiten Einführband und einer zweiten Austrittwalze, wobei das erste und das zweite Einführband einen Signaturdurchlauf zur Auslage der Signaturen bilden; die erste Austrittwalze ist um eine erste Walzenachse rotierbar, jedoch anderweitig fixiert; einen die zweite Austrittwalze stützenden Hebel, wobei die zweite Austrittwalze an dem Hebel um eine zweite Walzenachse drehbar gelagert ist; einen mit dem Hebel verbundenen Arm mit einer ersten Seite und einer gegenüberliegenden zweiten Seite; eine erste, gegen die erste Seite des Armes wirkende Feder, um den Hebel und die zweite Austrittwalze in Richtung der ersten Austrittwalze zu zwingen; und eine gegen die zweite Seite des Armes wirkende zweite Feder.The present invention thus provides a folder which has the following features:
at least one infeed belt mechanism with a first infeed belt and a first exit roller and one corresponding second infeed belt and a second outlet roller, the first and second infeed belts forming a signature run for displaying the signatures; the first exit roller is rotatable about a first roller axis, but is otherwise fixed; a lever supporting the second exit roller, the second exit roller being rotatably supported on the lever about a second roller axis; an arm connected to the lever having a first side and an opposite second side; a first spring acting against the first side of the arm to urge the lever and the second exit roller toward the first exit roller; and a second spring acting against the second side of the arm.

Durch diese doppelte Federanordnung wird das beim Passieren der Signaturen durch den Einführbandmechanismus entstehende Schlagen vermindert und zugleich vorzeitiger Verschleiß der Lager, Bänder und anderer Komponenten verhindert.This double spring arrangement reduces the beating that occurs when the signatures pass through the infeed belt mechanism and at the same time prevents premature wear of the bearings, belts and other components.

Die vorliegende Erfindung wird durch die folgende Beschreibung im Zusammenhang mit den beigefügten, nachstehend erläuterten Zeichnungen näher erläutert.The present invention is explained in more detail by the following description in conjunction with the accompanying drawings explained below.

Es zeigen:

Fig. 1
eine Seitenansicht eines herkömmlichen Falzapparats für eine Rollenrotationsdruckmaschine;
Fig. 2
eine Seitenansicht eines Einführbandmechanismus gemäß vorliegender Erfindung;
Fig. 3
eine graphische Darstellung des die belastenden Kräfte mindernden Effekts der vorliegenden Erfindung.
Show it:
Fig. 1
a side view of a conventional folder for a web-fed rotary printing press;
Fig. 2
a side view of an insertion tape mechanism according to the present invention;
Fig. 3
a graphical representation of the stress reducing effect of the present invention.

Fig. 1 zeigt einen herkömmlichen Falzapparat 1 für eine Rollenrotationsdruckmaschine. Die bedruckte Bahn wird über einen Trichter 30 geleitet und gefalzt. Nach dem Falzen wird die Bahn durch den Spalt zwischen jeweiligen oberen und unteren Zugwalzen 31 und 32 und Führungswalzen 33 hindurchgeführt und gelangt zu einem Schneidzylinder 34, auf welchem die Bahn abgeschnitten wird und Signaturen gebildet werden. Zwischen den oberen und unteren Zugwalzen 31 und 32 befindet sich eine Bahntrennvorrichtung 35.Fig. 1 shows a conventional folder 1 for a web-fed rotary printing press. The printed web is over a funnel 30 passed and folded. After folding, the web is passed through the nip between respective upper and lower pull rollers 31 and 32 and guide rollers 33 and arrives at a cutting cylinder 34 on which the web is cut off and signatures are formed. A web separator 35 is located between the upper and lower pull rollers 31 and 32.

Die Signaturen werden dann durch ein Einführbandsystem 2 in die jeweiligen Taschen 50 und 51 jeweiliger Schaufelräder 40 und 41 befördert. Während der Rotation der Schaufelräder 40 und 41 werden die Signaturen auf jeweiligen Stapeln 55 und 56 abgelegt. Das Einführbandsystem 2 umfaßt mindestens einen Einführbandmechanismus und vorzugsweise mehr als einen Seite an Seite und parallel verlaufenden Einführbandmechanismus mit koaxialen Austrittwalzen, einschliießlich eines ersten Einführbandmechanismus 10 zum Ergreifen der Signaturen über deren Breite.The signatures are then conveyed through an introduction belt system 2 into the respective pockets 50 and 51 of respective paddle wheels 40 and 41. During the rotation of the paddle wheels 40 and 41, the signatures are placed on respective stacks 55 and 56. The infeed belt system 2 comprises at least one infeed belt mechanism and preferably more than one side-by-side and parallel infeed belt mechanism with coaxial exit rollers, including a first infeed belt mechanism 10 for gripping the signatures across their width.

Der erste Einführbandmechanismus 10 umfaßt ein linkes Einführband 11 und ein korrespondierendes rechtes Einführband 21, welche einen Signaturdurchlauf für die jeweiligen Signaturen bilden, wie durch die Signaturen 3 und 4 in Fig. 2 dargestellt. Beim Durchlauf der Signaturen ergibt sich ein Spalt 5 zwischen der Hinterkante der Signatur 3 und der Vorderkante der Signatur 4. Der Einführbandmechanismus 10 umfaßt auch linke obere Walzen 13 und rechte obere Walzen 23, welche Führungswalzen oder Antriebswalzen zur Führung und zum Antrieb des jeweiligen linken und rechten Einführbandes 11 und 21 sein können. Der Einführbandmechanismus 10 umfaßt ferner eine linke Austrittwalze 15 und eine korrespondierende rechte Austrittwalze 25.The first infeed belt mechanism 10 includes a left infeed belt 11 and a corresponding right infeed belt 21 which form a signature pass for the respective signatures, as shown by the signatures 3 and 4 in FIG. 2. When the signatures pass through, there is a gap 5 between the rear edge of the signature 3 and the front edge of the signature 4. The infeed belt mechanism 10 also comprises top left rollers 13 and top right rollers 23, which guide rollers or drive rollers for guiding and driving the respective left and right insertion belt 11 and 21 can be. The infeed belt mechanism 10 further includes a left exit roller 15 and a corresponding right exit roller 25.

Fig. 2 zeigt den Einführbandmechanismus 10, d.h. einen von vorzugsweise mehreren Seite an Seite angeordneten Einführbandmechanismen, welcher ein linkes Einführband 11 und ein korrespondierendes rechtes Einführband 21 umfaßt. Die linke Austrittwalze 15 ist an einem Ende eines linken Hebels 16 gelagert, und der linke Hebel 16 ist mit seinem anderen Ende an einer Büchse 18 befestigt, die um einen Stehbolzen 17 drehbar ist. Der Stehbolzen 17 ist an einem Rahmenteil 28 derart angebracht, daß der linke Hebel 16 und die linke Austrittwalze 15 mit einer Federvorspannung gegen die rechte Austrittwalze 25 beaufschlagt werden kann, wie im folgenden näher beschrieben wird. Auf der rechten Seite ist die rechte Austrittwalze 25 an einem Ende eines rechten Hebels 26 gelagert, und der rechte Hebel 26 ist mit seinem anderen Ende an einem fest angebrachten Stehbolzen 27 gelagert, der an dem Rahmenteil 28 fixiert ist, so daß die rechte Austrittwalze 25 sich drehen kann, jedoch während des Betriebs translatorisch fixiert ist.FIG. 2 shows the infeed band mechanism 10, ie an infeed band mechanism, preferably arranged side by side, which has a left infeed band 11 and includes a corresponding right entry belt 21. The left exit roller 15 is supported at one end of a left lever 16, and the left end 16 is fastened at its other end to a bush 18 which is rotatable about a stud 17. The stud 17 is attached to a frame part 28 such that the left lever 16 and the left exit roller 15 can be acted upon by a spring preload against the right exit roller 25, as will be described in more detail below. On the right side, the right exit roller 25 is supported at one end of a right lever 26, and the other end of the right lever 26 is supported on a fixed stud 27, which is fixed to the frame part 28, so that the right exit roller 25 can rotate, but is translationally fixed during operation.

Es ist auch ein Arm 29 mit einer Ober- und Unterseite mittels eines Klemmbolzens an der Büchse 18 befestigt. Eine Spiralfeder 60 ist um einen Vorspannbolzen 62 gewunden, der einen Bolzenkopf 63 aufweist, und ist zwischen dem Bolzenkopf 63 und der Oberseite des Arms 29 beweglich. Der Vorspannbolzen 62 wird in ein an dem Rahmenteil 28 befestigtes Montagestück 65 geschraubt und dringt dabei auch durch ein Loch in dem Arm 29. Die Vorspannung der Spiralfeder 60 kann durch Anziehen oder Lockern des Bolzens 62 geändert werden. Bei einer Änderung der Vorspannung kann der Klemmbolzen des Arms 29 gelockert werden, so daß der Arm 29 sich an der Büchse 18 drehen kann, und später wieder festgeschraubt werden. Dies kann erfolgen, ohne die Position des Hebels 16, der seinen eigenen Klemmbolzen hat, zu beeinträchtigen.An arm 29 with an upper and lower side is also fastened to the bush 18 by means of a clamping bolt. A coil spring 60 is wound around a bias bolt 62 having a bolt head 63 and is movable between the bolt head 63 and the top of the arm 29. The preload bolt 62 is screwed into a mounting piece 65 fastened to the frame part 28 and also penetrates through a hole in the arm 29. The preload of the coil spring 60 can be changed by tightening or loosening the bolt 62. In the event of a change in the pretension, the clamping bolt of the arm 29 can be loosened so that the arm 29 can rotate on the bushing 18 and can be screwed back on later. This can be done without affecting the position of the lever 16, which has its own clamping bolt.

Zwischen der Oberfläche des Montagestückes 65 und der Unterseite des Armes 29 und um den Bolzen 62 befindet sich eine zweite Feder 61, die z.B. aus einem gummiartigen Material bestehen kann und vorzugsweise eine hohe Federkonstante aufweist. Die zweite Feder 61 hat auch vorzugsweise zusätzliche Dämpfungseigenschaften, um Kräfte- und Schwingungseinwirkungen zu vermindern.Between the surface of the mounting piece 65 and the underside of the arm 29 and around the bolt 62 there is a second spring 61, which can be made of a rubber-like material, for example, and preferably a high one Has spring constant. The second spring 61 also preferably has additional damping properties in order to reduce the effects of forces and vibrations.

Für eine Hochgeschwindigkeits-Rollenrotationsdruckmaschine, die mit Geschwindigkeiten bis zu 914 m/min (3000 ft/min) läuft, würde eine bevorzugte Federkonstante für die Spiralfeder ungefähr 22,5-45 kg pro 2,54 cm (50-100 lbs/inch) und eine bevorzugte Federkonstante für die zweite Feder ungefähr 225-450 kg pro 2,54 cm (500-1000 lbs/inch) betragen, jedoch kann die optimale Federkonstante variieren, was von der Bahndicke, den normalen Betriebsgeschwindigkeiten und anderen Faktoren abhängt.For a high speed web-fed rotary press that runs at speeds up to 914 m / min (3000 ft / min), a preferred spring constant for the coil spring would be approximately 22.5-45 kg per 2.54 cm (50-100 lbs / inch) and a preferred spring constant for the second spring is about 225-450 kg per 2.54 cm (500-1000 lbs / inch), however the optimal spring constant may vary depending on web thickness, normal operating speeds and other factors.

Während des Betriebs werden die einzelnen Signaturen 3, 4 zwischen den korrespondierenden Einführbändern 11, 21 bewegt. Die Spiralfeder 60 zwingt den Arm 29 und damit den Hebel 16 und die linke Austrittwalze 15, sich durch die Büchse 18 in Richtung der rechten Austrittwalze 25 zu bewegen. Die zweite Feder 61 wirkt dieser Bewegung entgegen. Wenn also der Spalt zwischen zwei Signaturen die Austrittwalzen 15, 25 passiert, absorbiert die Feder 61 mit hoher Federkonstante die hohe dynamische Belastung und vermindert somit beträchtlich das durch den jeweiligen Spalt zwischen den Signaturen verursachte Schlagen.During operation, the individual signatures 3, 4 are moved between the corresponding infeed belts 11, 21. The spiral spring 60 forces the arm 29 and thus the lever 16 and the left discharge roller 15 to move through the bushing 18 in the direction of the right discharge roller 25. The second spring 61 counteracts this movement. Thus, when the gap between two signatures passes the exit rollers 15, 25, the spring 61 with a high spring constant absorbs the high dynamic load and thus considerably reduces the beating caused by the respective gap between the signatures.

Wie in Fig. 3 gezeigt, sind die auf den Bolzenkopf 63 wirkenden Kräfte durch die vorhandene Feder, die eine hohe Federkonstante aufweist, bedeutend vermindert. Die dargestellte Kurve 70 zeigt beim Betrieb der Maschine das Variieren der auf den Bolzenkopf 63 wirkenden Kräfte, während die dargestellte Kurve 71 das Wirken von Kräften auf einen ähnlichen Bolzenkopf zeigt, wo nur eine Spiralfeder zwischen einem Arm und dem Bolzenkopf wirkt. Der Zeitraum zwischen den Scheitelpunkten der Kurve 71 ist der Zeitraum, in welchem eine individuelle Signatur die Austrittwalzen passiert.As shown in Fig. 3, the forces acting on the bolt head 63 are significantly reduced by the existing spring, which has a high spring constant. The illustrated curve 70 shows the variation of the forces acting on the bolt head 63 during operation of the machine, while the illustrated curve 71 shows the effects of forces on a similar bolt head, where only a coil spring acts between one arm and the bolt head. The time period between the vertices of curve 71 is the time period in which an individual signature passes the exit rollers.

Obschon die vorliegende Erfindung in dem oben beschriebenen Ausführungsbeispiel im einzelnen dargelegt ist, ist es denkbar, daß die Erfindung weitere Ausführungen umfaßt, und daß insbesondere andere Arten von Federn als Spiralfedern und gummiartige Federn verwendet werden können.Although the present invention is described in detail in the above-described embodiment, it is conceivable that the invention encompasses further embodiments, and that in particular types of springs other than spiral springs and rubber-like springs can be used.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

11
FalzapparatFolder
22nd
EinführbandsystemInfeed conveyor system
33rd
Signatursignature
44th
Signatursignature
55
Spalt zwischen SignaturenGap between signatures
1010th
EinführbandmechanismusInfeed belt mechanism
1111
linkes Einführbandleft infeed belt
1313
linke obere Walzentop left rollers
1515
linke Austrittwalzeleft exit roller
1616
linker Hebelleft lever
1717th
StehbolzenStud bolts
1818th
Büchserifle
2121
rechtes Einführbandright entry belt
2323
rechte obere Walzentop right rollers
2525th
rechte Austrittwalzeright discharge roller
2626
rechter Hebelright lever
2727
Stehbolzen (fest angebracht)Stud bolts (fixed)
2828
RahmenteilFrame part
2929
Armpoor
3030th
Trichterfunnel
3131
obere Zugwalzenupper pull rollers
3232
untere Zugwalzenlower pull rollers
3333
FührungswalzenGuide rollers
3434
SchneidzylinderCutting cylinder
3535
BahntrennvorrichtungWeb cutting device
4040
SchaufelradPaddle wheel
4141
SchaufelradPaddle wheel
5050
Tasche eines SchaufelradsBag of a paddle wheel
5151
Tasche eines SchaufelradsBag of a paddle wheel
5555
Stapelstack
5656
Stapelstack
6060
SpiralfederCoil spring
6161
Feder (gummiartig)Feather (rubbery)
6262
VorspannbolzenPreload bolt
6363
BolzenkopfBolt head
6565
MontagestückAssembly piece
7070
KurveCurve
7171
KurveCurve

Claims (11)

Falzapparat, welcher die folgenden Merkmale aufweist: - mindestens einen Einführbandmechanismus (10) mit einem ersten Einführband (11) und einer ersten Austrittwalze (15) und einem korrespondierenden zweiten Einführband (21) und einer zweiten Austrittwalze (25), wobei das erste und das zweite Einführband (11, 21) einen Signaturdurchlauf zur Auslage der Signaturen bilden; - die erste Austrittwalze (15) ist um eine erste Walzenachse rotierbar, jedoch anderweitig fixiert; - einen die zweite Austrittwalze (25) stützenden Hebel (26), wobei die zweite Austrittwalze (25) an dem Hebel (26) um eine zweite Walzenachse drehbar gelagert ist; - einen mit dem Hebel (26) verbundenen Arm (29) mit einer ersten Seite und einer gegenüberliegenden zweiten Seite; - eine erste, gegen die erste Seite des Armes (29) wirkende Feder (60), um den Hebel (26) und die zweite Austrittwalze (25) in Richtung der ersten Austrittwalze (15) zu zwingen; und - eine gegen die zweite Seite des Armes (29) wirkende zweite Feder (61). Folder with the following features: - At least one infeed belt mechanism (10) with a first infeed belt (11) and a first outfeed roller (15) and a corresponding second infeed belt (21) and a second outfeed roller (25), the first and the second infeed belt (11, 21) one Form signature run to display the signatures; - The first exit roller (15) is rotatable about a first roller axis, but is otherwise fixed; - A lever (26) supporting the second outlet roller (25), the second outlet roller (25) being rotatably mounted on the lever (26) about a second roller axis; - an arm (29) connected to the lever (26) and having a first side and an opposite second side; - a first spring (60) acting against the first side of the arm (29) to force the lever (26) and the second exit roller (25) towards the first exit roller (15); and - A second spring (61) acting against the second side of the arm (29). Falzapparat gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die erste Feder (60) und die zweite Feder (61) unterschiedliche Federkonstanten aufweisen.Folding apparatus according to claim 1,
characterized,
that the first spring (60) and the second spring (61) have different spring constants. Falzapparat gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die erste Feder (60) eine niedrigere Federkonstante als die zweite Feder (61) aufweist.Folding apparatus according to claim 1,
characterized,
that the first spring (60) has a lower spring constant than the second spring (61). Falzapparat gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die erste Feder (60) eine Spiralfeder ist.Folding apparatus according to claim 1,
characterized,
that the first spring (60) is a spiral spring. Falzapparat gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die erste Feder (60) eine Federkonstante von ungefähr 22,5-45 kg pro 2,54 cm (50-100 lbs/inch) aufweist.Folding apparatus according to claim 1,
characterized,
that the first spring (60) has a spring constant of approximately 22.5-45 kg per 2.54 cm (50-100 lbs / inch). Falzapparat gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die zweite Feder (61) aus gummiartigem Material besteht.Folding apparatus according to claim 1,
characterized,
that the second spring (61) consists of rubber-like material. Falzapparat gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die zweite Feder (61) eine Federkonstante von ungefähr 225-450 kg pro 2,54 cm (500-1000 lbs/inch) aufweist.Folding apparatus according to claim 1,
characterized,
that the second spring (61) has a spring constant of approximately 225-450 kg per 2.54 cm (500-1000 lbs / inch). Falzapparat gemäß Anspruch 1, welcher ferner einen Stehbolzen (17) umfaßt, wobei der Arm (29) durch den Stehbolzen (17) mit dem Hebel (16) verbunden ist.A folder according to claim 1, further comprising a stud (17), the arm (29) being connected to the lever (16) by the stud (17). Falzapparat gemäß Anspruch 1, welcher ferner einen Bolzen (62) mit einem Bolzenkopf (63) umfaßt, wobei der Bolzen (62) durch den Arm (29), die erste Feder (60) und die zweite Feder (61) dringt.The folder of claim 1, further comprising a pin (62) having a pin head (63), the pin (62) penetrating through the arm (29), the first spring (60) and the second spring (61). Falzapparat gemäß Anspruch 9, welcher ferner ein Montagestück umfaßt, in welches der Bolzen (62) hineingeschraubt wird.A folder according to claim 9, further comprising a mounting piece into which the bolt (62) is screwed. Falzapparat gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die zweite Feder (61) dämpfende Eigenschaften aufweist, wodurch Kräfte- und Schwingungseinwirkungen vermindert werden.Folding apparatus according to claim 1,
characterized,
that the second spring (61) has damping properties, whereby the effects of forces and vibrations are reduced.
EP95108275A 1994-08-29 1995-05-31 Folding apparatus Expired - Lifetime EP0699612B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US297728 1981-08-31
US08/297,728 US5490666A (en) 1994-08-29 1994-08-29 Folder with spring-biased exit roller

Publications (3)

Publication Number Publication Date
EP0699612A2 true EP0699612A2 (en) 1996-03-06
EP0699612A3 EP0699612A3 (en) 1997-01-29
EP0699612B1 EP0699612B1 (en) 1999-11-24

Family

ID=23147506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95108275A Expired - Lifetime EP0699612B1 (en) 1994-08-29 1995-05-31 Folding apparatus

Country Status (5)

Country Link
US (1) US5490666A (en)
EP (1) EP0699612B1 (en)
JP (1) JPH0872433A (en)
CA (1) CA2152708C (en)
DE (2) DE19519373A1 (en)

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Also Published As

Publication number Publication date
JPH0872433A (en) 1996-03-19
CA2152708A1 (en) 1996-03-01
EP0699612B1 (en) 1999-11-24
DE59507277D1 (en) 1999-12-30
CA2152708C (en) 1998-10-06
EP0699612A3 (en) 1997-01-29
US5490666A (en) 1996-02-13
DE19519373A1 (en) 1996-03-07

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