EP0038942B1 - Folding and stapling machine for paper sheets - Google Patents

Folding and stapling machine for paper sheets Download PDF

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Publication number
EP0038942B1
EP0038942B1 EP19810102350 EP81102350A EP0038942B1 EP 0038942 B1 EP0038942 B1 EP 0038942B1 EP 19810102350 EP19810102350 EP 19810102350 EP 81102350 A EP81102350 A EP 81102350A EP 0038942 B1 EP0038942 B1 EP 0038942B1
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EP
European Patent Office
Prior art keywords
paper
folding
machine
fastening
clamping jaws
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
Application number
EP19810102350
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German (de)
French (fr)
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EP0038942A1 (en
Inventor
Dieter Jellinghaus
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.)
Ernst Nagel & Co KG GmbH
Original Assignee
Ernst Nagel & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19803024830 external-priority patent/DE3024830A1/en
Application filed by Ernst Nagel & Co KG GmbH filed Critical Ernst Nagel & Co KG GmbH
Publication of EP0038942A1 publication Critical patent/EP0038942A1/en
Application granted granted Critical
Publication of EP0038942B1 publication Critical patent/EP0038942B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42B—PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES OR PERMANENTLY ATTACHING OBJECTS THERETO
    • B42B4/00—Permanently attaching together sheets, quires or signatures by discontinuous stitching with filamentary material, e.g. wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/18—Oscillating or reciprocating blade folders

Definitions

  • the invention relates to a folding and stapling machine for paper sheets with a folding device that folds the paper sheets located in a predetermined position in the machine, in which the folding process takes place (folding position), along a folding line, and with a stapling device that the sheets in the area of the fold, wherein a stitching head is guided so that it can be moved against the paper in the folding position, and with a device for producing a bulge in the paper in a predetermined direction.
  • Such a device is known from DE-A-2 242 576.
  • the paper which has not yet been folded and is in the folding position is moved by a folding blade between clamping rollers which are pressed against the paper and thereby fold the paper around the folding blade.
  • the paper is pre-folded by V-shaped stamps which press the paper against a V-shaped recess in a table.
  • the pinch rollers also serve to remove the folded and stapled sheets of paper.
  • the known machine is less suitable for folding thick layers of paper, because the sharpness of the fold generally gets worse the thicker the layer of paper to be folded.
  • the contact pressure of the rolls used for folding must not be too great, because otherwise the rolls will no longer grip the paper to be folded securely.
  • the invention has for its object to provide a machine of the type described above so that it is particularly suitable for folding relatively thick layers of paper.
  • This object is achieved in that the folding device has two pairs of clamping jaws, each with a first and a second clamping jaw, which are arranged on both sides at a distance from the fold to be produced during the stapling process, and which are driven such that after stapling each pair of The paper clamps the jaws, and the pairs of jaws are then moved towards one another, and the arrangement is such that the bulged area produced by the device for producing a bulge in the paper passes between facing press surfaces of one jaw of each pair and is folded through the press surfaces. Therefore, no rolls are used for folding.
  • the paper layer 202 to be stapled is pushed into the machine from the left and reaches a stop 203.
  • the machine 201 has two pairs of clamping jaws, each having a lower clamping jaw 205 or 206 and have an upper jaw 207 or 208.
  • the upper jaws 207 and 208 are lifted off the associated lower jaws, so that the paper layer 202 can be pushed between them.
  • the pairs of clamping jaws 205, 207 and 206, 208 are at a mutual distance from one another, namely they are each equidistant from the future fold line 210.
  • a die 212 of the stapling device Arranged above the fold line 210 is a die 212 of the stapling device, which has a stapling head 213 with a driver 214 and a staple guide channel 215.
  • the stitching head 213 is guided in a sliding guide 216 so as to be displaceable in the vertical direction.
  • the drive device for most parts of the machine 201 is shown in the left part of the machine 201, but offset to the rear in relation to the plane in which the paper layer 202 is fed.
  • This has an electric motor 220, which drives a cam disk 224 in a counterclockwise direction in the view of FIG. 1 via a gearwheel gear 221, 222.
  • the cam 226 of the cam disk 224 actuates a two-armed lever 230 which is pivotably mounted about a fixed horizontal pivot axis 228, the shorter lever arm 231 of which is connected to a push rod 232 which is connected via a Roller 233 is engaged with the cam disk 224.
  • the longer lever arm 236 of the lever 230 then, when the lever 230 is pivoted counterclockwise, presses on the driver 214 from below, thereby moving the stitching head 213 upward until it abuts the paper layer 202 and, by pushing the driver 214 further, effects the stitching process .
  • the stapling head 213 then goes down again.
  • the cam disk 224 rotates further, the cam 226 actuates an electrical switch 240, which is connected to a switching device 242 to which the electrical connections of electromagnets 246 designed as lifting magnets are connected, each on the underside of the lower clamping jaws 205 and 206 are arranged and are shown only schematically in Fig. 1.
  • the upper jaw 207 and 208 are connected to the armature of the lifting magnets 246.
  • the switching device 242 causes the electromagnets 246 to be energized, as a result of which the upper clamping jaws 207 are moved downward and the paper web 202 between its horizontal lower clamping surface 250 and the horizontal upper clamping surface 252 of the lower clamping jaws 205 or Pinch 206.
  • the upper clamping jaws 207, 208 have nose-like projections 256 projecting downward over the clamping surface 250 on their mutually facing sides, and the lower clamping jaws 205, 206 are chamfered below the projections 256 so that when the paper web 202 is clamped, the projections 256 cannot collide with the clamping jaws 205.
  • the paper web 202 is bulged downward in its area lying between the pairs of clamping jaws during the clamping process.
  • the pair of clamping jaws 205, 207 on the left in FIG. 1 is slidably mounted in a horizontal direction on a fixed guide 260.
  • a push rod connected to the lower jaw 250 is divided into two parts 262 and 264, between which a compression spring 266 is connected.
  • the left part 264 of the push rod is supported on the cam wheel 224 via a roller 268. If the cam 226 comes into contact with the roller 268, it pushes the push rod 262, 264 and thereby the pair of jaws 205, 207 to the right.
  • the area of the paper layer 202 located between them is bulged further downward, and the lowermost area 270 in the vicinity of the fold line 210 comes into the area between mutually facing parallel and vertical clamping surfaces 272 of the lower jaws 205 and 206 , see. 2. If the push rod 262, 264 is pushed further to the right, the area 270 is finally clamped between the clamping surfaces 272 and a sharp fold is formed.
  • the cam 226 actuates an electrical switch 274, which is also connected to the switching device 242 and causes the electromagnets 246 to switch off.
  • the upper clamping jaws 207, 208 are lifted off the lower clamping jaws 205 and 206 by compression springs (not shown) and thereby release the paper layer 202.
  • the cam 226 arrives at an electrical switch 276, which is connected to a solenoid 278 and causes ejector fingers 280 arranged to the left of the paper layer 202, which are in a raised position when the paper layer 202 is inserted into the machine 201 need to be lowered.
  • roller 226 actuates an angle lever 280, which in turn is supported on the cam disk 224 via a roller 281 and whose longer lever arm 282 acts on the free end of a push rod 283, which is mounted in the machine 201 so as to be horizontally displaceable and from which one Arm 284 protrudes downward, which carries the solenoid 278 and thus the ejector fingers 280.
  • a toothed rack 286 which engages with a toothed wheel 287 which is rotatably mounted about a fixed axis and which in turn engages with a toothed rack 288 which is mounted on its underside and which is horizontally displaceably mounted and on its right
  • a downwardly projecting arm 289 is arranged, which carries ejector fingers 290 at its lower end.
  • the racks 286 and 288 therefore inevitably always move in the opposite direction because of the engagement in the gear 287. If the push rod 263 is moved to the right in the manner described, the ejector fingers 280 consequently move to the right in FIG.
  • the ejector fingers 290 located in the right part of the machine move to the left. They come into engagement with the end edges of the paper layer 202 lying on the left and right in FIG. 1 and thereby push the already folded paper layer downwards out of the machine between the lower clamping jaws 205 and 206.
  • the stapled and folded paper layer reaches a support surface 293 via a chute 292.
  • the pre-folded brochures can be removed from there or transported from there using a conveyor belt.
  • any other suitable measure or device can be used to produce a downward bulge in the paper web 202 in the area between the pairs of jaws; for example, the downward bulge can be generated by compressed air acting on the upper side of the paper web 202 or by a rod pressing downward acting on the upper side.
  • the ejector fingers 280 need only be raised per se when a new paper web 202 is inserted into the machine 201. In the exemplary embodiment, however, the ejector fingers 280 are raised a short time after the push rod 283 has reached its farthest has moved to the right position.

Description

Die Erfindung betrifft eine Falz- und Heftmaschine für Papierbögen mit einer Falzvorrichtung, die die in einer vorbestimmten Position in der Maschine befindlichen Papierbögen, in der der Falzvorgang erfolgt (Falzposition), längs einer Falzlinie falzt, und mit einer Heftvorrichtung, die die Bögen im Bereich des Falzes heftet, wobei ein Heftkopf derart beweglich geführt ist, daß er gegen das in der Falzposition befindliche Papier bewegbar ist, und mit einer Vorrichtung zum Erzeugen einer Ausbuchtung im Papier in einer vorbestimmten Richtung.The invention relates to a folding and stapling machine for paper sheets with a folding device that folds the paper sheets located in a predetermined position in the machine, in which the folding process takes place (folding position), along a folding line, and with a stapling device that the sheets in the area of the fold, wherein a stitching head is guided so that it can be moved against the paper in the folding position, and with a device for producing a bulge in the paper in a predetermined direction.

Eine derartige Vorrichtung ist durch die DE-A-2 242 576 bekannt. Bei der bekannten Vorrichtung wird das in der Falzposition befindliche, noch nicht gefalzte Papier durch ein Falzschwert zwischen Klemmrollen bewegt, die gegen das Papier gepresst werden und das Papier dadurch um das Falzschwert herumfalten. Bevor das Falzschwert gegen das Papier bewegt wird, wird das Papier durch V-förmige Stempel, die das Papier gegen eine V-förmige Ausnehmung eines Tisches pressen, vorgefalzt. Die Klemmrollen dienen gleichzeitig zum Abfördern der gefalzten und gehefteten Papierbögen.Such a device is known from DE-A-2 242 576. In the known device, the paper which has not yet been folded and is in the folding position is moved by a folding blade between clamping rollers which are pressed against the paper and thereby fold the paper around the folding blade. Before the folding sword is moved against the paper, the paper is pre-folded by V-shaped stamps which press the paper against a V-shaped recess in a table. The pinch rollers also serve to remove the folded and stapled sheets of paper.

Die bekannte Maschine eingnet sich weniger zum Falzen von dicken Papierlagen, denn die Schärfe des Falzes wird im allgemeinen umso schlechter, je dicker die zu falzende Papierlage ist. Es darf nämlich der Anpressdruck der zum Falzen verwendeten Rollen nicht zu groß sein, weil sonst die Rollen das zu falzende Papier nicht mehr sicher ergreifen.The known machine is less suitable for folding thick layers of paper, because the sharpness of the fold generally gets worse the thicker the layer of paper to be folded. The contact pressure of the rolls used for folding must not be too great, because otherwise the rolls will no longer grip the paper to be folded securely.

Der Erfindung liegt die Aufgabe zugrunde, eine Maschine der eingangs geschilderten Art so auszubilden, daß sie sich besonders zum Falzen von relativ dicken Papierlagen eignet. Diese Aufgabe wird dadurch gelöst, daß die Falzvorrichtung zwei Paare von Klemmbacken mit je einer ersten und einer zweiten Klemmbacke aufweist, die während des Heftvorganges beidseitig im Abstand von dem herzustellenden Falz angeordnet sind, und die derart angetrieben sind, daß nach dem Heften jedes Paar der Klemmbacken das Papier festklemmt, und daß die Paare der Klemmbacken anschließend aufeinander zu bewegt werden, und daß die Anordnung so getroffen ist, daß der von der Vorrichtung zum Erzeugen einer Ausbuchtung im Papier erzeugte ausgebuchtete Bereich zwischen einander zugewandte Pressflächen je einer Klemmbacke jedes Paares gelangt und durch die Pressflächen gefalzt wird. Es werden somit zum Falzen keine Rollen verwendet.The invention has for its object to provide a machine of the type described above so that it is particularly suitable for folding relatively thick layers of paper. This object is achieved in that the folding device has two pairs of clamping jaws, each with a first and a second clamping jaw, which are arranged on both sides at a distance from the fold to be produced during the stapling process, and which are driven such that after stapling each pair of The paper clamps the jaws, and the pairs of jaws are then moved towards one another, and the arrangement is such that the bulged area produced by the device for producing a bulge in the paper passes between facing press surfaces of one jaw of each pair and is folded through the press surfaces. Therefore, no rolls are used for folding.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung beschrieben. Es zeigen:

  • Fig. 1 eine Maschine in Seitenansicht, teilweise geschnitten, und
  • Fig. 2 eine Einzelheit der Fig. 1.
An embodiment of the invention is described below with reference to the drawing. Show it:
  • Fig. 1 shows a machine in side view, partially in section, and
  • FIG. 2 shows a detail of FIG. 1.

Bei der in Fig. 1 gezeigten Maschine 201 wird die zu heftende Papierlage 202 von links her in die Maschine eingeschoben und gelangt bis zu einem Anschlag 203. Die Maschine 201 weist zwei Paare von Klemmbacken auf, die jeweils eine untere Klemmbacke 205 bzw. 206 und eine obere Klemmbacke 207 bzw. 208 aufweisen. Während des Einschiebens der Papierlage 202 sind die oberen Klemmbacken 207 und 208 von den zugehörigen unteren Klemmbacken abgehoben, so daß die Papierlage 202 zwischen ihnen hindurchgeschoben werden kann. Die Paare der Klemmbacken 205, 207 und 206, 208 haben voneinander zu diesem Zeitpunkt einen gegenseitigen Abstand, und zwar sind sie jeweils gleich weit von der künftigen Falzlinie 210 entfernt. Oberhalb der Falzlinie 210 ist eine Matrize 212 der Heftvorrichtung angeordnet, die einen Heftkopf 213 mit einem Treiber 214 und einem Klammerführungskanal 215 aufweist. Der Heftkopt 213 ist in einer Schiebeführung 216 in senkrechter Richtung verschiebbar geführt.In the machine 201 shown in FIG. 1, the paper layer 202 to be stapled is pushed into the machine from the left and reaches a stop 203. The machine 201 has two pairs of clamping jaws, each having a lower clamping jaw 205 or 206 and have an upper jaw 207 or 208. During the insertion of the paper layer 202, the upper jaws 207 and 208 are lifted off the associated lower jaws, so that the paper layer 202 can be pushed between them. At this point in time, the pairs of clamping jaws 205, 207 and 206, 208 are at a mutual distance from one another, namely they are each equidistant from the future fold line 210. Arranged above the fold line 210 is a die 212 of the stapling device, which has a stapling head 213 with a driver 214 and a staple guide channel 215. The stitching head 213 is guided in a sliding guide 216 so as to be displaceable in the vertical direction.

Im linken Teil der Maschine 201, jedoch gegenüber der Ebene, in der die Papierlage 202 zugeführt wird, nach hinten versetzt, ist die Antriebsvorrichtung für die meisten Teile der Maschine 201 gezeigt. Diese weist eine Elektromotor 220 auf, der über ein Zahnradgetriebe 221, 222 eine Nockenscheibe 224 in der Ansicht der Fig. 1 im Gegenuhrzeigersinn antreibt. Die Nocke 226 der Nockenscheibe 224 betätigt ausgehend von der in Fig. 1 gezeigten Stellung nach einem Umlauf von 90° einen um eine ortsfeste waagrechte Schwenkachse 228 schwenkbar gelagerten zweiarmigen Hebel 230, dessen kürzerer Hebelarm 231 mit einer Schubstange 232 in Verbindung steht, die über eine Rolle 233 mit der Nockenscheibe 224 in Eingriff ist. Der längere Hebelarm 236 des Hebels 230 drückt dann, wenn der Hebel 230 im Gegenuhrzeigersinn verschwenkt wird, von unten auf den Trieber 214, bewegt dadurch den Heftkopf 213 nach oben bis zur Anlage an die Papierlage 202 und bewirkt durch das Weiterschieben des Treibers 214 den Heftvorgang. Anschließend geht der Heftkopf 213 wieder nach unten. Bei der weiteren Drehung der Nockenscheibe 224 betätigt die Nocke 226 einen elektrischen Schalter 240, der mit einer Schalteinrichtung 242 in Verbindung steht, an die die elektrischen Anschlüsse von als Hubmagnete ausgebildeten Elektromagneten 246 verbunden sind, die jeweils an der Unterseite der unteren Klemmbacken 205 und 206 angeordnet sind und in Fig. 1 nur schematisch dargestellt sind. Mit dem Anker der Hubmagneten 246 ist jeweils die obere Klemmbacke 207 und 208 verbunden. Beim Betätigen des Schalters 240 durch die Nocke 226 veranlaßt die Schaltvorrichtung 242 das Erregen der Elektromagnete 246, wodurch die oberen Klemmbacken 207 nach unten bewegt werden und die Papierbahn 202 zwischen ihrer waagrechten unteren Klemmfläche 250 und der waagrechten oberen Klemmfläche 252 der unteren Klemmbacken 205 bzw. 206 einklemmen. Die oberen Klemmbacken 207, 208 weisen an ihren einander zugewandten Seiten über die Klemmfläche 250 nach unten ragende nasenartige Vorsprünge 256 auf, und die unteren Klemmbacken 205, 206 sind unterhalb der Vorsprünge 256 abgeschrägt, so daß beim Festklemmen der Papierbahn 202 die Vorsprünge 256 nicht mit den Klemmbacken 205 kollidieren können. Durch diese nach unten weisenden Vorsprünge 256 wird beim Klemmvorgang die Papierbahn 202 in ihrem zwischen den Klemmbackenpaaren liegenden Bereich nach unten ausgebuchtet.The drive device for most parts of the machine 201 is shown in the left part of the machine 201, but offset to the rear in relation to the plane in which the paper layer 202 is fed. This has an electric motor 220, which drives a cam disk 224 in a counterclockwise direction in the view of FIG. 1 via a gearwheel gear 221, 222. Starting from the position shown in FIG. 1, after a revolution of 90 °, the cam 226 of the cam disk 224 actuates a two-armed lever 230 which is pivotably mounted about a fixed horizontal pivot axis 228, the shorter lever arm 231 of which is connected to a push rod 232 which is connected via a Roller 233 is engaged with the cam disk 224. The longer lever arm 236 of the lever 230 then, when the lever 230 is pivoted counterclockwise, presses on the driver 214 from below, thereby moving the stitching head 213 upward until it abuts the paper layer 202 and, by pushing the driver 214 further, effects the stitching process . The stapling head 213 then goes down again. When the cam disk 224 rotates further, the cam 226 actuates an electrical switch 240, which is connected to a switching device 242 to which the electrical connections of electromagnets 246 designed as lifting magnets are connected, each on the underside of the lower clamping jaws 205 and 206 are arranged and are shown only schematically in Fig. 1. The upper jaw 207 and 208 are connected to the armature of the lifting magnets 246. When the switch 240 is actuated by the cam 226, the switching device 242 causes the electromagnets 246 to be energized, as a result of which the upper clamping jaws 207 are moved downward and the paper web 202 between its horizontal lower clamping surface 250 and the horizontal upper clamping surface 252 of the lower clamping jaws 205 or Pinch 206. The upper clamping jaws 207, 208 have nose-like projections 256 projecting downward over the clamping surface 250 on their mutually facing sides, and the lower clamping jaws 205, 206 are chamfered below the projections 256 so that when the paper web 202 is clamped, the projections 256 cannot collide with the clamping jaws 205. By means of these downward-pointing projections 256, the paper web 202 is bulged downward in its area lying between the pairs of clamping jaws during the clamping process.

Das in Fig. 1 linke Paar der Klemmbacken 205, 207 ist in waagrechter Richtung auf einer ortsfesten Führung 260 verschiebbar gelagert. Eine mit der unteren Klemmbacke 250 verbundene Schubstange ist in zwei Teile 262 und 264 unterteilt, zwischen die eine Druckfeder 266 eingeschaltet ist. Der linke Teil 264 der Schubstange stützt sich über eine Rolle 268 am Nockenrad 224 ab. Kommt die Nocke 226 mit der Rolle 268 in Berührung, so verschiebt sie die Schubstange 262, 264 und dadurch das Klemmbackenpaar 205, 207 nach rechts. Durch die Annäherung der Klemmbackenpaare wird der sich zwischen diesen befindende Bereich der Papierlage 202 weiter nach unten ausgebuchtet, und der unterste Bereich 270 in der Umgebung der Falzlinie 210 kommt dabei in den Bereich zwischen einander zugewandten parallelen und vertikalen Klemmflächen 272 der unteren Klemmbacken 205 und 206, vgl. hierzu Fig. 2. Wird die Schubstange 262, 264 weiter nach rechts geschoben, so wird schließlich der Bereich 270 zwischen den Klemmflächen 272 eingeklemmt und es wird ein scharfer Falz gebildet. Die Druckfeder 266, die sehr kräftig ist, gestattet dabei das Falzen unterschiedlich dicker Papierlagen, ohne jeweils die Maschine genau einstellen zu müssen.The pair of clamping jaws 205, 207 on the left in FIG. 1 is slidably mounted in a horizontal direction on a fixed guide 260. A push rod connected to the lower jaw 250 is divided into two parts 262 and 264, between which a compression spring 266 is connected. The left part 264 of the push rod is supported on the cam wheel 224 via a roller 268. If the cam 226 comes into contact with the roller 268, it pushes the push rod 262, 264 and thereby the pair of jaws 205, 207 to the right. As the pairs of jaws approach each other, the area of the paper layer 202 located between them is bulged further downward, and the lowermost area 270 in the vicinity of the fold line 210 comes into the area between mutually facing parallel and vertical clamping surfaces 272 of the lower jaws 205 and 206 , see. 2. If the push rod 262, 264 is pushed further to the right, the area 270 is finally clamped between the clamping surfaces 272 and a sharp fold is formed. The compression spring 266, which is very strong, allows the folding of layers of paper of different thicknesses without having to set the machine precisely.

Sobald die Schubstange 262, 264 ihre am weitesten nach rechts in Fig. 1 vorgeschobene Lage eingenommen hat, betätigt die Nocke 226 einen elektrischen Schalter 274, der ebenfalls mit der Schaltvorrichtung 242 verbunden ist und das Abschalten der Elektromagneten 246 veranlaßt. Dadurch werden durch nicht dargestellte Druckfedern die oberen Klemmbacken 207, 208, von den unteren Klemmbacken 205 bzw. 206 abgehoben und geben dadurch die Papierlage 202 frei. Bei der weiteren Drehung gelangt die Nocke 226 zu einem elektrischen Schalter 276, der mit einem Hubmagnet 278 verbunden ist und veranlaßt, daß links von der Papierlage 202 angeordnete Auswerferfinger 280, die beim Einführen der Papierlage 202 in dei Maschine 201 sich in einer angehobenen Position befinden müssen, abgesenkt werden. Anschließend betätigt die Rolle 226 einen Winkelhebel 280, der sich weiderum über eine Rolle 281 an der Nockenscheibe 224 abstützt und dessen längerer Hebelarm 282 auf das freie Ende einer Schubstange 283 einwirkt, die in der Maschine 201 in waagrechter Richtung verschiebbar gelagert ist und von der ein Arm 284 nach unten ragt, der den Hubmagnet 278 und somit die Auswerferfinger 280 trägt. Im rechten Endbereich der Schubstange 283 ist eine Zahnstange 286 angeordnet, die mit einem um eine ortsfeste Achse drehbar gelagerten Zahnrad 287 in Eingriff ist, das wiederum mit einer an seiner Unterseite angeifenden Zahnstange 288 in Eingriff ist, die waagrecht verschiebbar gelagert ist und an deren rechtem Ende ein nach unten ragender Arm 289 angeordnet ist, der an seinem unteren Ende Auswerferfinger 290 trägt. Die Zahnstangen 286 und 288 bewegen sich wegen des Eingriffs in das Zahnrad 287 somit zwangsläufig immer in entgegengesetzter Richtung. Wird die Schubstange 263 in der geschilderten Weise nach rechts bewegt, so bewegen sich demzufolge die Auswerferfinger 280 in Fig. 1 nach rechts und die im rechten Teil der Maschine befindlichen Auswerferfinger 290 bewegen sich nach links. Sie kommen dabei mit den in Fig. 1 links und rechts liegenden Endkanten der Papierlage 202 in Eingriff und schieben die bereits gefalzte Papierlage dadurch zwischen den unteren Klemmbacken 205 und 206 hindurch nach unten aus der Maschine. Die geheftete und gefalzte Papierlage gelangt über eine Rutsche 292 auf eine Auflagefläche 293. Dort sind bereits einige gefalzte Papierlagen, die mit dem Bezugszeichen 295 bezeichnet sind, eingezeichnet. Die fertig gefalzten Broschüren können dort entnommen werden oder von dieser Stelle auch mittels eines Förderbandes weiter transportiert werden.As soon as the push rod 262, 264 is in its most advanced position to the right in FIG. 1, the cam 226 actuates an electrical switch 274, which is also connected to the switching device 242 and causes the electromagnets 246 to switch off. As a result, the upper clamping jaws 207, 208 are lifted off the lower clamping jaws 205 and 206 by compression springs (not shown) and thereby release the paper layer 202. Upon further rotation, the cam 226 arrives at an electrical switch 276, which is connected to a solenoid 278 and causes ejector fingers 280 arranged to the left of the paper layer 202, which are in a raised position when the paper layer 202 is inserted into the machine 201 need to be lowered. Subsequently, the roller 226 actuates an angle lever 280, which in turn is supported on the cam disk 224 via a roller 281 and whose longer lever arm 282 acts on the free end of a push rod 283, which is mounted in the machine 201 so as to be horizontally displaceable and from which one Arm 284 protrudes downward, which carries the solenoid 278 and thus the ejector fingers 280. In the right end region of the push rod 283 there is arranged a toothed rack 286 which engages with a toothed wheel 287 which is rotatably mounted about a fixed axis and which in turn engages with a toothed rack 288 which is mounted on its underside and which is horizontally displaceably mounted and on its right At the end, a downwardly projecting arm 289 is arranged, which carries ejector fingers 290 at its lower end. The racks 286 and 288 therefore inevitably always move in the opposite direction because of the engagement in the gear 287. If the push rod 263 is moved to the right in the manner described, the ejector fingers 280 consequently move to the right in FIG. 1 and the ejector fingers 290 located in the right part of the machine move to the left. They come into engagement with the end edges of the paper layer 202 lying on the left and right in FIG. 1 and thereby push the already folded paper layer downwards out of the machine between the lower clamping jaws 205 and 206. The stapled and folded paper layer reaches a support surface 293 via a chute 292. A few folded paper layers, which are identified by the reference symbol 295, have already been drawn in there. The pre-folded brochures can be removed from there or transported from there using a conveyor belt.

Die Tischplatten 296 und 298, deren Oberseite in der Ebene der Klemmflächen 252 liegt und die links von der Klemmbacke 205 bzw. rechts von der Klemmbacke 206 angeordnet sind, weisen parallel zur Zeichenebene verlaufende Längsschlitze zum Durchtreten der Auswerferfinger 280 und 290 auf, die etwas weiter nach unten reichen als die Klemmflächen 252.The table tops 296 and 298, the top of which lies in the plane of the clamping surfaces 252 and which are arranged to the left of the clamping jaw 205 and to the right of the clamping jaw 206, have longitudinal slots running parallel to the plane of the drawing for the passage of the ejector fingers 280 and 290, which are somewhat wider extend downward as the clamping surfaces 252.

Wenn die Nocke 226 an der Rolle 281 vorbeigelaufen ist, nehmen die Zahnstangen 286 und 288 weider ihre in Fig. 1 gezeigte Ausgangsstellung ein. Sie werden in dieser Ausgangsstellung durch eine Zugfeder 302 gebracht, die einerseits an einem ortsfesten Punkt der Maschine und andererseits an der Zahnstange 288 angreift. In ähnlicher Weise wird das linke Klemmbackenpaar 205, 207 wieder in seine in Fig. 1 gezeigte Ausgangsstellung nach links zurückbewegt, wenn die Nocke 226 den Bereich der Rolle 268 verläßt. Diese mit der Klemmbacke 205 in Eingriff stehende Zugfeder ist aus Gründen der Einfachheit der Darstellung nicht gezeigt.When the cam 226 has passed the roller 281, the racks 286 and 288 return to their starting position shown in FIG. 1. They are brought into this starting position by a tension spring 302 which acts on the one hand at a fixed point on the machine and on the other hand on the rack 288. In a similar manner, the left pair of jaws 205, 207 is moved back to the left in its starting position shown in FIG. 1 when the cam 226 leaves the area of the roller 268. This tension spring, which engages with the clamping jaw 205, is not shown for the sake of simplicity of illustration.

Anstatt der nach unten ragenden Vorsprünge 256 kann zum Erzeugen einer nach unten gerichteten Ausbuchtung der Papierbahn 202 im Bereich zwischen der Klemmbackenpaaren jede andere geeignete Maßnahme oder Vorrichtung verwendet werden; beispielsweise kann die nach unten gerichtete Ausbuchtung durch auf die Oberseite der Papierbahn 202 wirkende Druckluft oder durch einen auf die Oberseite wirkenden, nach unten drückenden Stab erzeugt werden.Instead of the protruding projections 256, any other suitable measure or device can be used to produce a downward bulge in the paper web 202 in the area between the pairs of jaws; for example, the downward bulge can be generated by compressed air acting on the upper side of the paper web 202 or by a rod pressing downward acting on the upper side.

Die Auswerferfinger 280 müssen an sich nur dann angehoben sein, wenn eine neue Papierbahn 202 in die Maschine 201 eingeführt wird. Im Ausführungsbeispiel erfolgt das Anheben der Auswerferfinger 280 jedoch bereits kurze Zeit, nachdem die Schubstange 283 ihre am weitesten nach rechts verschobene Position eingenommen hat.The ejector fingers 280 need only be raised per se when a new paper web 202 is inserted into the machine 201. In the exemplary embodiment, however, the ejector fingers 280 are raised a short time after the push rod 283 has reached its farthest has moved to the right position.

Claims (1)

  1. Folding and fastening machine for paper sheets, comprising a folding apparatus (205, 206, 207, 208) which folds along a fold line the sheets of paper (202) which are disposed in a predetermined position in the machine and in which position the folding process takes place (folding position), and having a fastening device (213) which fastens the sheets in the region of the fold, a fastening head (213) being guided for movement so that it can be moved towards the paper which is in the folding position, and with a device for producing an outward bulge in the paper (202) in a predetermined direction, characterised in that the folding device comprises two pairs of clamping jaws (205, 207; 206, 208) each with a first (205, 206) and a second (207, 208) clamping jaw and which are during the fastening process disposed on both sides and at a distance from the fold (210) which is to be produced, and which are so driven that after fastening each pair (205, 207; 206, 208) of the clamping jaws clamp the paper (202) firmly and in that the pairs of clamping jaws are subsequently moved towards each other and in that the arrangement is so contrived that the outwardly bulged zone (270) produced by the device (256) for producing an outward bulge in the paper (202) is passed between facing pressing surfaces (272) of a clamping jaw (205, 206) of each pair and is folded by the pressing surfaces.
EP19810102350 1980-04-30 1981-03-27 Folding and stapling machine for paper sheets Expired EP0038942B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP80102326 1980-04-30
EP80102326 1980-04-30
DE3024830 1980-07-01
DE19803024830 DE3024830A1 (en) 1980-04-30 1980-07-01 FOLDING AND STAPLING MACHINE FOR PAPER SHEETS

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EP0038942A1 EP0038942A1 (en) 1981-11-04
EP0038942B1 true EP0038942B1 (en) 1985-06-26

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US4875668A (en) * 1988-04-28 1989-10-24 Computer Output Processors And Engineering, Inc. High speed sheet folder and presser for automated mailing systems
US4957284A (en) * 1988-09-02 1990-09-18 Profold, Inc. Apparatus and method for converting sheet folder to booklet maker
US5108081A (en) * 1991-01-02 1992-04-28 Eastman Kodak Company Saddle stitcher for a reproduction apparatus finisher
GB9101377D0 (en) * 1991-01-22 1991-03-06 Watkiss Automation Ltd Stitcher/folder apparatus
SE468664B (en) * 1991-06-26 1993-03-01 Motterstitch Co PROCEDURE AND DEVICE TO PUT PARTS WITH SHEETS
DE19611788C2 (en) * 1996-03-12 1999-11-11 Francotyp Postalia Gmbh Arrangement for folding sheets
JP3165957B2 (en) * 1996-03-13 2001-05-14 ホリゾン・インターナショナル株式会社 Saddle folding machine
DE19610814C1 (en) * 1996-03-19 1997-06-05 Binder & Co Masch Oppenweiler Thread sealing machine with sheet conveyors, thread clamps, bending appliance
IT1286382B1 (en) * 1996-11-19 1998-07-08 Gianattilio Meratti METHOD FOR MAKING SIGNATURES AND BENDING MACHINE FOR IMPLEMENTING THE METHOD PARTICULARLY BUT NOT EXCLUSIVELY IN A
EP1182161A1 (en) * 2000-08-25 2002-02-27 MASCHINENBAU OPPENWEILER BINDER GmbH & CO. Device for folding sheets
US6808479B2 (en) * 2001-10-05 2004-10-26 Hewlett-Packard Development Company, L.P. Thick media folding method
US6878104B2 (en) * 2001-10-05 2005-04-12 Hewlett-Packard Development Company, L.P. Variable media thickness folding method
US7261507B2 (en) * 2002-01-25 2007-08-28 Horizon International Inc. Book binding method and system for saddle stitched bound booklet
US7530559B2 (en) * 2006-04-12 2009-05-12 Hewlett-Packard Development Company, L.P. Booklet maker
JP2017064963A (en) * 2015-09-29 2017-04-06 ニスカ株式会社 Sheet bundle binding process device and image formation system equipped with the same
BE1026865B1 (en) * 2018-12-12 2020-07-16 Peleman Industries Nv Folding device for making two parallel folds in a sheet of paper or the like

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DE2242576C2 (en) * 1972-08-30 1982-12-30 E.C.H. Will (Gmbh & Co), 2000 Hamburg Method and device for folding several stacked, stapled sheets of paper

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