EP2045093B1 - Crimp head - Google Patents

Crimp head Download PDF

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Publication number
EP2045093B1
EP2045093B1 EP08105353.0A EP08105353A EP2045093B1 EP 2045093 B1 EP2045093 B1 EP 2045093B1 EP 08105353 A EP08105353 A EP 08105353A EP 2045093 B1 EP2045093 B1 EP 2045093B1
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EP
European Patent Office
Prior art keywords
support
staple
control
stapling
clip
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.)
Active
Application number
EP08105353.0A
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German (de)
French (fr)
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EP2045093A3 (en
EP2045093A2 (en
Inventor
Torsten Brünner
Steffen Hoffmann
Holger Klamt
Siegmar Tischer
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Mueller Martini Holding AG
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Mueller Martini Holding AG
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Publication date
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Publication of EP2045093A2 publication Critical patent/EP2045093A2/en
Publication of EP2045093A3 publication Critical patent/EP2045093A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F7/00—Nailing or stapling; Nailed or stapled work
    • B27F7/17—Stapling machines
    • B27F7/19—Stapling machines with provision for bending the ends of the staples on to the work
    • B27F7/21—Stapling machines with provision for bending the ends of the staples on to the work with means for forming the staples in the machine
    • 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

Definitions

  • the invention relates to a stapling device according to the preamble of claim 1.
  • Devices for stapling folded signatures or printed products are used in print finishing in different designs and performance data.
  • the use of stapling heads in saddle stitchers is widespread.
  • folded printed products are singulated, deposited on a transport chain or the like, collected and collected. Subsequently, they are stapled in a stitching station and then optionally fed to a further processing unit for edge trimming, a delivery or the like.
  • a saddle stitcher is for example from the EP 0 916 514 A1 known.
  • the known saddle stitcher has a stitching station in which successive folded sheets are stapled with the aid of a staple, in particular a wire staple.
  • a staple in particular a wire staple.
  • stapling heads arranged above the gathering chain and clinchers arranged between the collecting chains instead of the guide strip, which bend over the free ends of the staples pierced by the folding sheets. Stapling stations and stitching heads for this purpose, for example, from the DE 44 44 220 C2 known.
  • the Indian DE 44 44 220 C2 stapling head described has a former and a bender, which cooperate to form staples of wire sections.
  • the shaped staples are guided by a staple support in grooves of the clincher and moved by means of a driver on the product to be stapled and driven therethrough. Below the product are in the stapling position clincher or staple with cup-shaped recesses for bending over the legs of the clip.
  • the drive of Umbieger and driver is done by connected to a curve control connecting rod.
  • a disadvantage of such stitching heads is that the legs of the clip protrude from the Umbieger after stapling. Until the actual stapling can the legs of the clip, in particular by entering the stapling area products are deformed. Deformed staples will cause problems when inserting the staples into the product.
  • US 2 635 234 A discloses a device according to the preamble of claim 1.
  • Object of the present invention is therefore to optimize the leadership of the clip and to overcome the disadvantages of the prior art.
  • the stapling device has a stapling head base body with a former, a clincher, a staple support and a driver.
  • the former has a support nose for supporting the wire portion and a control nose for controlling the swinging out movement.
  • the control nose interacts here with a control edge of the driver.
  • the support nose protrudes beyond the contour of the control nose.
  • the support area of the former is pulled forward as far as the control edge of the driver in order to feed the wire section maximally deep into the bending grooves of the clincher, and thus to achieve a storage position which is favorable for the pivoting-in bracket support.
  • the contour of the control nose is curved. This allows optimum coordination between the pivoting movement and the length of the support nose.
  • the clip support on a curved guide surface which is provided in its two lateral support areas with recesses.
  • these recesses are spatial chamfers at an angle of about 30 ° and end shortly before the clip support tip. This has the advantage that in the pivoted state abutting the clip back guide surface also called clamp support areas, can not jam, because due to the recesses sufficient margin for tolerances is available. Nevertheless, the clip is supported in the area of the clip support tip on its full width.
  • the staple support is pivotally mounted in the bender.
  • the pivoting movement of the staple support is controlled by a control cam and a control cam in cooperation with a control roller.
  • FIG. 1 illustrated typical saddle stitcher is designated 150 and has a gathering chain 22 as a transport device.
  • Individual signature sheets or folded signatures 17, 18, 23 from the stacks are deposited on the folded chain in the folded sheet feeder 50, 61, 62.
  • a guide bar 25 is arranged, the upper portion 21 is formed like a blade and whose straight line defines the transport and stapling line.
  • the gathering chain 22 forms, together with the guide strip 25, a substantially roof-shaped support on which the collected signatures 60 are transported astride in the direction of the arrow P to a stitching station 24, in which they are stapled with the aid of staples.
  • stapling heads 26 arranged above the gathering chain and pairs of clinicians 51/52 arranged underneath, which bend the free ends of the staples pierced by the stapling heads 26 by the folding sheet stacks 60 serve.
  • FIG. 2 is one of the stitching heads 26 off FIG. 1 shown in detail in the stitching station 24 of the saddle stitcher 150.
  • the stapling head body 105 is fixedly connected to a receiving rail 108, which performs a horizontal cyclic movement, in which the stapling head is brought to the transport speed of stapled, stapled folded sheet stack 60.
  • a slide and drive slide are moved vertically via grooves in two control rails 109 and 110. From the relative movement between the driver slide and slider, the remaining movements in the stapler are also derived.
  • a cutting box 120 is arranged, in which the stapling wire 5 is inserted and cut according to the required wire length.
  • the required wire length depends z. B. on the thickness of the stack to be stapled, as well as the type of wire stitching.
  • the stapling head according to the invention is limited in terms of its representation and description to the essential components.
  • an inventive stapling head 100 is shown with its essential elements such as former 1, bender 2, staple support 3 and driver 4 in two different working positions.
  • the driver 4 and the clincher 2 together with the staple support 3 are moved vertically downward.
  • Former 1 triggered by the downward movement of the driver 4, a pivoting movement about pivot 8 against the spring force of the spring 7, wherein a first stop by the adjustable stop 9 and a second stop by the driver 4 is formed (in Fig. 3 is the former 1 on the adjustable stop 9, in Fig. 4 is the former 1 on the driver 4).
  • the clip support 3 executes a pivoting movement about pivot point 10. The pivoting is effected by the spring force of a torsion spring 11 and by the downward movement of the bender 2, wherein the staple support 3 has a control roller 33 which on a control cam 12 (FIG. Fig. 5a - 5d ) rolls off.
  • a wire section 5 cut to length in the cutting box 120 in a suitable length is fed to the former 1 and held there by a magnet 6.
  • the bender 2 is moved vertically downward on the wire section 5.
  • the Umbieger 2 has two rails, each with an inner guide groove 20, the so-called Umbiegerrillen.
  • the bender 2 strikes the ends of the wire section 5 protruding from the former 1, these ends are bent by approximately 90 ° into the guide grooves 20.
  • These bent ends of the wire section 5 represent the legs, the un-bent center represents the yoke of the clip 5 ".
  • the former 1 is swung out and the clip support 3 is pivoted in.
  • the task of the clip support 3 is to support the clip 5 "as long as possible, ie to guide the yoke of the clip 5" and to stabilize the legs of the clip 5 "in the guide grooves 20 of the bender 2 (see also FIG Fig. 6 ). As a result, a bending over of the legs of the clip 5 "is avoided.
  • Fig. 4 the stapling head 100 is shown at a later time.
  • the stapling process has already been completed and the staple 5 "was removed from the Driver 4 encountered in a product 200.
  • staple pans or clincher for bending the legs of the staple 5 " which are located below the product 200.
  • the former 1 has been deflected by the driver 4, as well as the staple support 3.
  • the driver 4 is in its lowest point at the moment of stapling and is subsequently moved vertically up again.
  • FIGS. 5a-d the stapling process is shown, in particular also the movement sequence of the staple support 3 according to the invention.
  • Fig. 5a shows a snapshot just before the beginning of the clip formation.
  • the control roller 33 of the clip support 3 abuts against the vertical curve segment of the control cam 12 and holds the clip support 3 in swung-out state.
  • the stapling process begins. Together with the bender 2 and the clip support 3 is moved downward.
  • the control roller 33 follows the control cam 12 and causes the clip support 3 to swivel in, so that it supports the clamp 5 "from the moment of its formation due to the frictional force of the clamp 5" in the bender 2, which is rapidly greater, especially with thick wires the spring force of the torsion spring 11, the staple 5 "would be moved vertically downwards with the clincher and the staple support 3 would be pivoted out.
  • the stapling head 100 has a control cam 13, which keeps the staple support 3 in the pivoted state, so that the Clip support 3 can perform their support and leadership function longer and the legs of the clip 5 "does not protrude over the bender 2.
  • the control roller 33 of the staple support 3 rolls while, as in Fig. 5b shown off on the control cam 13.
  • the former 1 is controlled.
  • the control lug 16 of the former 1 protrudes beyond the support lug 15 and cooperates with the end face 40 of the driver in its up and down movement.
  • a staple support 3 of a stapling head 100 is shown in detail.
  • the staple support 3 has a curved guide surface 34 on which the yoke of the staple 5 "slides and is guided, and the staple support 3 has two lateral support surfaces 31 which hold the legs of the staple 5" in the guide grooves 20 of the clincher 2 (not here) shown, see Fig. 7 ) hold.
  • the staple support 3 each has a recess in the form of a chamfer 32 is formed, for. B. by a spatial chamfering at an angle of about 30 °. In principle, however, angles between 20 ° and 40 ° are conceivable.
  • the chamfer 32 prevents jamming of the clincher 2, staple 5 "and staple support 3.
  • the bevel 32 does not extend all the way to the staple support tip 30, so that the support surfaces 31 in the staple support tip 30 are effective over the entire width the clip 5 "advantageously longer be performed.
  • Fig. 8 shows an enlarged view of a snapshot of the stapling process at the time when it is just completed.
  • the driver 4 is further vertically moved downwardly to pierce the formed staple 5 ', 5 "into a product 200, not shown,
  • the staple support 3 is pivoted in to support the staple 5', 5".
  • the outer contour of the former 1 according to the invention was made with greater line thickness and the outer contour of the former 1 'according to FIG The prior art is shown by dashed lines. This makes it clear that the former 1 has a support nose 15.
  • this support lug 15 The task of this support lug 15 is to hold the clip 5 "longer and stop its downward movement 1 'has no such support nose, which is why the clip 5' is already in a lower position and the legs of the clip 5 'protrude from the bender 2.
  • the lower jaw of the former 1 was compared to the lower jaw of the former 1 'extended by the amount x.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Textile Engineering (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Heften gemäß dem Oberbegriff von Anspruch 1.The invention relates to a stapling device according to the preamble of claim 1.

Vorrichtungen zum Heften von gefalzten Signaturen bzw. Druckprodukten werden in der Druckweiterverarbeitung in unterschiedlichen Bauformen und Leistungsdaten eingesetzt. Weit verbreitet ist beispielsweise der Einsatz von Heftköpfen in Sammelheftern. In Sammelheftern werden gefalzte Druckprodukte vereinzelt, auf einer Transportkette oder dergleichen abgelegt, gesammelt und zusammengetragen. Anschließend werden sie in einer Heftstation geheftet und anschließend ggf. einer Weiterverarbeitungseinheit für den Randbeschnitt, einer Auslage oder dergleichen zugeführt. Ein solcher Sammelhefter ist beispielsweise aus der EP 0 916 514 A1 bekannt.Devices for stapling folded signatures or printed products are used in print finishing in different designs and performance data. For example, the use of stapling heads in saddle stitchers is widespread. In saddle stitchers, folded printed products are singulated, deposited on a transport chain or the like, collected and collected. Subsequently, they are stapled in a stitching station and then optionally fed to a further processing unit for edge trimming, a delivery or the like. Such a saddle stitcher is for example from the EP 0 916 514 A1 known.

Der bekannte Sammelhefter besitzt eine Heftstation, in der aufeinander liegende Falzbogen mit Hilfe einer Klammer, insbesondere einer Drahtklammer, geheftet werden. Hierzu dienen oberhalb der Sammelkette angeordnete Heftköpfe und zwischen den Sammelketten anstelle der Führungsleiste angeordnete Klinscher, welche die freien Enden der durch die Falzbogen gestochenen Klammern umbiegen. Heftstationen und Heftköpfe für diesen Zweck sind beispielsweise aus der DE 44 44 220 C2 bekannt.The known saddle stitcher has a stitching station in which successive folded sheets are stapled with the aid of a staple, in particular a wire staple. For this purpose, stapling heads arranged above the gathering chain and clinchers arranged between the collecting chains instead of the guide strip, which bend over the free ends of the staples pierced by the folding sheets. Stapling stations and stitching heads for this purpose, for example, from the DE 44 44 220 C2 known.

Der in der DE 44 44 220 C2 beschriebene Heftkopf besitzt einen Former und einen Umbieger, welche zusammenwirken zum Ausformen von Klammern aus Drahtabschnitten. Die ausgeformten Klammern werden von einer Klammerstütze in Nuten des Umbiegers geführt und mittels eines Treibers auf das zu heftende Produkt hinzubewegt und durch dieses hindurchgetrieben. Unterhalb des Produktes befinden sich in der Heftposition Klinscher oder Heftpfannen mit napfförmigen Ausnehmungen zum Umbiegen der Schenkel der Klammer. Der Antrieb von Umbieger und Treiber erfolgt durch mit einer Kurvensteuerung verbundene Pleuel.The Indian DE 44 44 220 C2 stapling head described has a former and a bender, which cooperate to form staples of wire sections. The shaped staples are guided by a staple support in grooves of the clincher and moved by means of a driver on the product to be stapled and driven therethrough. Below the product are in the stapling position clincher or staple with cup-shaped recesses for bending over the legs of the clip. The drive of Umbieger and driver is done by connected to a curve control connecting rod.

Nachteilig bei derartigen Heftköpfen ist, dass die Schenkel der Klammer nach der Klammerbildung aus dem Umbieger hervorstehen. Bis zum eigentlichen Heften können die Schenkel der Klammer, insbesondere durch in den Heftbereich einlaufende Produkte, deformiert werden. Bei deformierten Klammern kommt es dann zu Problemen beim Einstechen der Klammern in das Produkt.A disadvantage of such stitching heads is that the legs of the clip protrude from the Umbieger after stapling. Until the actual stapling can the legs of the clip, in particular by entering the stapling area products are deformed. Deformed staples will cause problems when inserting the staples into the product.

US 2 635 234 A offenbart eine Vorrichtung gemäß dem Oberbegriff von Anspruch 1. US 2 635 234 A discloses a device according to the preamble of claim 1.

Aufgabe der vorliegenden Erfindung ist es deshalb, die Führung der Klammer zu optimieren und die Nachteile des Standes der Technik zu beheben.Object of the present invention is therefore to optimize the leadership of the clip and to overcome the disadvantages of the prior art.

Gelöst wird diese Aufgabe durch eine Vorrichtung zum Heften zusammengetragener Druckprodukte gemäß den kennzeichnenden Merkmalen von Anspruch 1.This object is achieved by a device for stapling collated printed products according to the characterizing features of claim 1.

Die erfindungsgemäße Heftvorrichtung weist einen Heftkopfgrundkörper mit einem Former, einem Umbieger, einer Klammerstütze und einem Treiber auf. Der Former hat eine Stütznase zum stützen des Drahtabschnitts und eine Steuernase zum Steuern der Ausschwenkbewegung. Die Steuernase wirkt hierbei mit einer Steuerkante des Treibers zusammen. Die Stütznase ragt über die Kontur der Steuernase hinaus. Der Stützbereich des Formers ist in einer vorteilhaften Ausgestaltung bis an die Steuerkante des Treibers vorgezogen, um den Drahtabschnitt maximal tief in die Umbiegerrillen des Umbiegers einzuziehen, und so eine für die einschwenkende Klammerstütze günstige Ablageposition zu erreichen.The stapling device according to the invention has a stapling head base body with a former, a clincher, a staple support and a driver. The former has a support nose for supporting the wire portion and a control nose for controlling the swinging out movement. The control nose interacts here with a control edge of the driver. The support nose protrudes beyond the contour of the control nose. In an advantageous embodiment, the support area of the former is pulled forward as far as the control edge of the driver in order to feed the wire section maximally deep into the bending grooves of the clincher, and thus to achieve a storage position which is favorable for the pivoting-in bracket support.

In einer vorteilhaften Ausgestaltung ist die Kontur der Steuernase kurvenförmig ausgestaltet. Dies ermöglicht eine optimale Abstimmung zwischen Schwenkbewegung und Länge der Stütznase.In an advantageous embodiment, the contour of the control nose is curved. This allows optimum coordination between the pivoting movement and the length of the support nose.

In einer weiteren vorteilhaften Ausgestaltung weist die Klammerstütze eine gekrümmte Führungsfläche auf, die in ihren beiden seitlichen Stützbereichen mit Ausnehmungen versehen ist. Vorteilhafter Weise sind diese Ausnehmungen räumliche Anfasungen unter einem Winkel von etwa 30° und enden kurz vor der Klammerstützenspitze. Dies hat den Vorteil, dass die im eingeschwenkten Zustand am Klammerrücken anliegende Führungsfläche auch Klammerstützbereiche genannt, nicht verklemmen kann, weil aufgrund der Ausnehmungen genügend Spielraum für Toleranzen vorhanden ist. Dennoch wird die Klammer im Bereich der Klammerstützenspitze auf ihrer vollen Breite gestützt.In a further advantageous embodiment, the clip support on a curved guide surface, which is provided in its two lateral support areas with recesses. Advantageously, these recesses are spatial chamfers at an angle of about 30 ° and end shortly before the clip support tip. This has the advantage that in the pivoted state abutting the clip back guide surface also called clamp support areas, can not jam, because due to the recesses sufficient margin for tolerances is available. Nevertheless, the clip is supported in the area of the clip support tip on its full width.

In einer besonders vorteilhaften Ausgestaltung ist die Klammerstütze schwenkbar im Umbieger gelagert. Die Schwenkbewegung der Klammerstütze wird durch eine Steuerkurve und einen Steuernocken im Zusammenwirken mit einer Steuerrolle gesteuert. Dies hat den Vorteil, dass insbesondere bei der Verarbeitung von dicken Drähten oder leicht verschmutzten oder korrodierten Drähten , bei denen während des Heftvorgangs ein erhöhter Kraftbedarf besteht, die Klammerstütze formschlüssig den Drahtabschnitt im Umbieger positioniert.In a particularly advantageous embodiment, the staple support is pivotally mounted in the bender. The pivoting movement of the staple support is controlled by a control cam and a control cam in cooperation with a control roller. This has the advantage that, especially in the processing of thick wires or lightly soiled or corroded wires, where there is an increased power requirement during the stapling process, the staple support positively positioned the wire section in the bender.

Weitere Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen anhand der Figuren 1 bis 8 der beigefügten Zeichnungen.Further advantages of the invention will become apparent from the following description of exemplary embodiments with reference to FIG FIGS. 1 to 8 of the accompanying drawings.

Hierbei zeigen:

Fig. 1
eine vereinfachte schematische Darstellung eines Sammelhefters mit einer Heftstation nach dem Stand der Technik,
Fig. 2
eine perspektivische Darstellung des in der Heftstation 24 des Sammelhefters nach Figur 1 geführten Heftkopfs 26 gemäß dem Stand der Technik,
Fig. 3
einen Schnitt durch einen Heftkopf in einer ersten Arbeitsposition
Fig. 4
einen Schnitt durch einen Heftkopf in einer zweiten Arbeitsposition
Fig. 5a-d
die Führung einer gebildeten Klammer durch die Klammerstütze in verschiedenen Momentaufnahmen
Fig. 6
eine Klammerstütze
Fig. 7
eine dreidimensionale Detailansicht eines Heftkopfs kurz vor dem Heften
Fig. 8
eine Detailansicht zweier verschiedener Former in einer Schnittdarstellung.
Hereby show:
Fig. 1
a simplified schematic representation of a saddle stitcher with a stitching station according to the prior art,
Fig. 2
a perspective view of in the stitching station 24 of the saddle stitcher after FIG. 1 guided stapling head 26 according to the prior art,
Fig. 3
a section through a stapling head in a first working position
Fig. 4
a section through a stapling head in a second working position
Fig. 5a-d
the guidance of a formed bracket through the bracket support in different snapshots
Fig. 6
a staple support
Fig. 7
a three-dimensional detail view of a stapling head just before stapling
Fig. 8
a detailed view of two different formers in a sectional view.

Der in Figur 1 dargestellte typische Sammelhefter ist mit 150 bezeichnet und besitzt eine Sammelkette 22 als Transporteinrichtung. Auf diese Sammelkette werden einzelne Falzbogen oder gefalzte Signaturen 17, 18, 23 aus den Stapeln in den Falzbogenanlegern 50, 61, 62 abgelegt. Unter der Sammelkette 22 ist eine Führungsleiste 25 angeordnet, deren oberer Abschnitt 21 schneidenförmig ausgebildet ist und deren Geradlinie die Transport-und Heftlinie festlegt. Die Sammelkette 22 bildet zusammen mit der Führungsleiste 25 eine im Wesentlichen dachförmige Auflage, auf der die gesammelten Falzbogen 60 rittlings in Richtung des Pfeils P zu einer Heftstation 24 transportiert werden, in der sie mit Hilfe von Klammern geheftet werden. Hierzu dienen oberhalb der Sammelkette angeordnete Heftköpfe 26 sowie darunter angeordnete Paare von Klinschern 51/52, welche die freien Enden der von den Heftköpfen 26 durch die Falzbogenstapel 60 gestochenen Klammern umbiegen.The in FIG. 1 illustrated typical saddle stitcher is designated 150 and has a gathering chain 22 as a transport device. Individual signature sheets or folded signatures 17, 18, 23 from the stacks are deposited on the folded chain in the folded sheet feeder 50, 61, 62. Under the gathering chain 22, a guide bar 25 is arranged, the upper portion 21 is formed like a blade and whose straight line defines the transport and stapling line. The gathering chain 22 forms, together with the guide strip 25, a substantially roof-shaped support on which the collected signatures 60 are transported astride in the direction of the arrow P to a stitching station 24, in which they are stapled with the aid of staples. For this purpose, stapling heads 26 arranged above the gathering chain and pairs of clinicians 51/52 arranged underneath, which bend the free ends of the staples pierced by the stapling heads 26 by the folding sheet stacks 60 serve.

In Figur 2 ist einer der Heftköpfe 26 aus Figur 1 in der Heftstation 24 des Sammelhefters 150 näher dargestellt. Der Heftkopfgrundkörper 105 ist mit einer Aufnahmeschiene 108 fest verbunden, die eine horizontale zyklische Bewegung ausführt, bei der der Heftkopf auf die Transportgeschwindigkeit des zu heftenden, gesammelten Falzbogenstapels 60 gebracht wird. Zusätzlich zur seitlichen Verschiebung der Aufnahmeschiene 108 werden über Nuten in zwei Steuerschienen 109 und 110 ein in dieser Figur nicht dargestellter Schieber und Treiberschieber vertikal bewegt. Aus der Relativbewegung zwischen Treiberschieber und Schieber werden außerdem die übrigen Bewegungen in der Heftvorrichtung abgeleitet.In FIG. 2 is one of the stitching heads 26 off FIG. 1 shown in detail in the stitching station 24 of the saddle stitcher 150. The stapling head body 105 is fixedly connected to a receiving rail 108, which performs a horizontal cyclic movement, in which the stapling head is brought to the transport speed of stapled, stapled folded sheet stack 60. In addition to the lateral displacement of the receiving rail 108, a slide and drive slide, not shown in this figure, are moved vertically via grooves in two control rails 109 and 110. From the relative movement between the driver slide and slider, the remaining movements in the stapler are also derived.

An dem Heftkopfgrundkörper 105 ist ein Abschneidkasten 120 angeordnet, in den der Heftdraht 5 eingeführt wird und entsprechend der erforderlichen Drahtlänge abgeschnitten wird. Dabei hängt die erforderliche Drahtlänge z. B. von der Dicke des zu heftenden Stapels ab, sowie von der Art der Drahtheftung. Im Folgenden ist der erfindungsgemäße Heftkopf hinsichtlich seiner Darstellung und Beschreibung auf die wesentlichen Komponenten beschränkt.On the stapling head main body 105, a cutting box 120 is arranged, in which the stapling wire 5 is inserted and cut according to the required wire length. The required wire length depends z. B. on the thickness of the stack to be stapled, as well as the type of wire stitching. In the following, the stapling head according to the invention is limited in terms of its representation and description to the essential components.

In den Figuren 3 und 4 ist ein erfindungsgemäßer Heftkopf 100 mit seinen wesentlichen Elementen wie Former 1, Umbieger 2, Klammerstütze 3 und Treiber 4 in zwei verschiedenen Arbeitspositionen dargestellt.In the Figures 3 and 4 an inventive stapling head 100 is shown with its essential elements such as former 1, bender 2, staple support 3 and driver 4 in two different working positions.

Während des Klammerbildungs- und Heftvorganges werden Treiber 4 und der Umbieger 2 zusammen mit der Klammerstütze 3 vertikal nach unten bewegt. Former 1 führt, ausgelöst durch die Abwärtsbewegung des Treibers 4, eine Schwenkbewegung um Drehpunkt 8 gegen die Federkraft der Feder 7 aus, wobei ein erster Anschlag durch den einstellbaren Anschlag 9 und ein zweiter Anschlag durch den Treiber 4 gebildet wird (in Fig. 3 liegt der Former 1 am einstellbaren Anschlag 9 an, in Fig. 4 liegt der Former 1 am Treiber 4 an). Die Klammerstütze 3 führt eine Schwenkbewegung um Drehpunkt 10 aus. Die Verschwenkung erfolgt durch die Federkraft einer Drehfeder 11 und durch die Abwärtsbewegung des Umbiegers 2, wobei die Klammerstütze 3 eine Steuerrolle 33 besitzt, welche auf einer Steuerkurve 12 (Fig. 5a - 5d) abrollt.During the stapling and stapling operation, the driver 4 and the clincher 2 together with the staple support 3 are moved vertically downward. Former 1, triggered by the downward movement of the driver 4, a pivoting movement about pivot 8 against the spring force of the spring 7, wherein a first stop by the adjustable stop 9 and a second stop by the driver 4 is formed (in Fig. 3 is the former 1 on the adjustable stop 9, in Fig. 4 is the former 1 on the driver 4). The clip support 3 executes a pivoting movement about pivot point 10. The pivoting is effected by the spring force of a torsion spring 11 and by the downward movement of the bender 2, wherein the staple support 3 has a control roller 33 which on a control cam 12 (FIG. Fig. 5a - 5d ) rolls off.

Nachfolgend wird kurz der Klammerbildungsvorgang beschrieben: Ein im Abschneidkasten 120 in passender Länge zugeschnittener Drahtabschnitt 5 wird dem Former 1 zugeführt und dort von einem Magneten 6 gehalten. Der Umbieger 2 wird vertikal nach unten auf den Drahtabschnitt 5 hinzubewegt. Wie aus Fig. 7 ersichtlich, besitzt der Umbieger 2 zwei Schienen mit je einer innen liegenden Führungsnut 20, den sogenannten Umbiegerrillen. Wenn der Umbieger 2 auf die aus dem Former 1 überstehenden Enden des Drahtabschnitts 5 trifft, werden diese Enden um ca. 90 ° in die Führungsnuten 20 gebogen. Diese umgebogenen Enden des Drahtabschnitts 5 stellen die Schenkel, das unverbogene Mittelstück stellt das Joch der Klammer 5" dar. Sobald die Klammer 5" gebildet ist, wird der Former 1 ausgeschwenkt und die Klammerstütze 3 eingeschwenkt. Aufgabe der Klammerstütze 3 ist es, die Klammer 5" möglichst lange zu stützen, d. h. das Joch der Klammer 5" zu führen und die Schenkel der Klammer 5" in den Führungsnuten 20 des Umbiegers 2 zu stabilisieren (siehe auch Fig. 6). Dadurch wird ein Umknicken der Schenkel der Klammer 5" vermieden.The clip-forming process will be briefly described below: A wire section 5 cut to length in the cutting box 120 in a suitable length is fed to the former 1 and held there by a magnet 6. The bender 2 is moved vertically downward on the wire section 5. How out Fig. 7 seen, the Umbieger 2 has two rails, each with an inner guide groove 20, the so-called Umbiegerrillen. When the bender 2 strikes the ends of the wire section 5 protruding from the former 1, these ends are bent by approximately 90 ° into the guide grooves 20. These bent ends of the wire section 5 represent the legs, the un-bent center represents the yoke of the clip 5 ". As soon as the clip 5" is formed, the former 1 is swung out and the clip support 3 is pivoted in. The task of the clip support 3 is to support the clip 5 "as long as possible, ie to guide the yoke of the clip 5" and to stabilize the legs of the clip 5 "in the guide grooves 20 of the bender 2 (see also FIG Fig. 6 ). As a result, a bending over of the legs of the clip 5 "is avoided.

In Fig. 4 ist der Heftkopf 100 zu einem späteren Zeitpunkt dargestellt. Der Klammerbildungsvorgang ist bereits abgeschlossen und die Klammer 5" wurde vom Treiber 4 in ein Produkt 200 gestoßen. Nicht dargestellt sind Heftpfannen oder Klinscher zum Umbiegen der Schenkel der Klammer 5", welche sich unterhalb des Produktes 200 befinden. Der Former 1 wurde vom Treiber 4 ausgelenkt, ebenso die Klammerstütze 3. Der Treiber 4 befindet sich im Moment des Heftens in seinem tiefsten Punkt und wird nachfolgend wieder vertikal nach oben bewegt.In Fig. 4 the stapling head 100 is shown at a later time. The stapling process has already been completed and the staple 5 "was removed from the Driver 4 encountered in a product 200. Not shown are staple pans or clincher for bending the legs of the staple 5 ", which are located below the product 200. The former 1 has been deflected by the driver 4, as well as the staple support 3. The driver 4 is in its lowest point at the moment of stapling and is subsequently moved vertically up again.

In den Figuren 5a-d ist der Klammerbildungsvorgang dargestellt, insbesondere auch der erfindungsgemäße Bewegungsablauf der Klammerstütze 3. Fig. 5a zeigt eine Momentaufnahme kurz vor Beginn der Klammerbildung. Die Steuerrolle 33 der Klammerstütze 3 liegt an dem senkrechten Kurvensegment der Steuerkurve 12 an und hält die Klammerstütze 3 in ausgeschwenktem Zustand. Durch die weitere Abwärtsbewegung des Umbiegers 2 setzt der Klammerbildungsvorgang ein. Zusammen mit dem Umbieger 2 wird auch die Klammerstütze 3 abwärts bewegt. Die Steuerrolle 33 folgt dabei der Steuerkurve 12 und bewirkt ein Einschwenken der Klammerstütze 3, so dass diese die Klammer 5" ab dem Moment ihrer Bildung stützt. Aufgrund der Reibungskraft der Klammer 5" im Umbieger 2, welche insbesondere bei dicken Drähten schnell größer ist als die Federkraft der Drehfeder 11, würde die Klammer 5" mit dem Umbieger vertikal nach unten bewegt und die Klammerstütze 3 ausgeschwenkt werden. Um dies zu verhindern besitzt der Heftkopf 100 einen Steuernocken 13, welcher die Klammerstütze 3 weiter in eingeschwenktem Zustand hält, so dass die Klammerstütze 3 länger ihre Stütz- und Führungsfunktion ausführen kann und die Schenkel der Klammer 5" nicht über den Umbieger 2 hinausstehen. Die Steuerrolle 33 der Klammerstütze 3 rollt dabei, wie in Fig. 5b gezeigt, auf dem Steuernocken 13 ab. Erst wenn der Treiber 4 weiter abwärts bewegt wird, also kurz vor dem Heftvorgang, wird die Klammerstütze 3, wie in Fig. 5c dargestellt, ausgeschwenkt. Bei der Aufwärtsbewegung von Treiber 4 und Umbieger 2 mit Klammerstütze 3 wird die Steuerrolle 33, wie in Fig. 5d dargestellt an der dem Treiber 4 abgewandten Seite des Steuernockens 13 entlang bewegt.In the FIGS. 5a-d the stapling process is shown, in particular also the movement sequence of the staple support 3 according to the invention. Fig. 5a shows a snapshot just before the beginning of the clip formation. The control roller 33 of the clip support 3 abuts against the vertical curve segment of the control cam 12 and holds the clip support 3 in swung-out state. As a result of the further downward movement of the clincher 2, the stapling process begins. Together with the bender 2 and the clip support 3 is moved downward. The control roller 33 follows the control cam 12 and causes the clip support 3 to swivel in, so that it supports the clamp 5 "from the moment of its formation due to the frictional force of the clamp 5" in the bender 2, which is rapidly greater, especially with thick wires the spring force of the torsion spring 11, the staple 5 "would be moved vertically downwards with the clincher and the staple support 3 would be pivoted out.To prevent this, the stapling head 100 has a control cam 13, which keeps the staple support 3 in the pivoted state, so that the Clip support 3 can perform their support and leadership function longer and the legs of the clip 5 "does not protrude over the bender 2. The control roller 33 of the staple support 3 rolls while, as in Fig. 5b shown off on the control cam 13. Only when the driver 4 is moved further down, so shortly before the stapling process, the staple support 3, as in Fig. 5c shown, swung out. In the upward movement of driver 4 and bender 2 with staple support 3, the control roller 33, as in Fig. 5d shown moved on the side facing away from the driver 4 of the control cam 13 along.

Des Weiteren ist aus den Fig. 5c und 5d erkennbar, wie die Ausschwenkbewegung des Formers 1 gesteuert wird. Die Steuernase 16 des Formers 1 ragt über die Stütznase 15 hinaus und wirkt mit der Stirnfläche 40 des Treibers bei dessen Auf- und Abwärtsbewegung zusammen.Furthermore, from the Fig. 5c and 5d recognizable as the Ausschwenkbewegung the former 1 is controlled. The control lug 16 of the former 1 protrudes beyond the support lug 15 and cooperates with the end face 40 of the driver in its up and down movement.

In Fig. 6 ist eine erfindungsgemäße Klammerstütze 3 eines Heftkopfs 100 im Detail dargestellt. Die Klammerstütze 3 besitzt eine gekrümmte Führungsfläche 34, an welcher das Joch der Klammer 5" entlang gleitet und geführt wird. Weiter besitzt die Klammerstütze 3 zwei seitliche Stützflächen 31, welche die Schenkel der Klammer 5" in den Führungsnuten 20 des Umbiegers 2 (hier nicht dargestellt, siehe Fig. 7) halten. In den Bereichen, wo Führungsfläche 34 und Stützflächen 31 aneinander stoßen, besitzt die Klammerstütze 3 jeweils eine Ausnehmung in Form einer Fase 32 gebildet, z. B. durch eine räumliche Anfasung unter einem Winkel von etwa 30 °. Prinzipiell sind aber auch Winkel zwischen 20° und 40° denkbar. Die Fase 32 verhindert dabei ein Verklemmen von Umbieger 2, Klammer 5" und Klammerstütze 3. Die Fase 32 erstreckt sich jedoch nicht bis hin zu Klammerstützenspitze 30, so dass sich die Stützflächen 31 in der Klammerstützenspitze 30 über die volle Breite wirksam ist. Hierdurch kann die Klammer 5" vorteilhafter Weise länger geführt werden.In Fig. 6 a staple support 3 of a stapling head 100 according to the invention is shown in detail. The staple support 3 has a curved guide surface 34 on which the yoke of the staple 5 "slides and is guided, and the staple support 3 has two lateral support surfaces 31 which hold the legs of the staple 5" in the guide grooves 20 of the clincher 2 (not here) shown, see Fig. 7 ) hold. In the areas where guide surface 34 and support surfaces 31 abut each other, the staple support 3 each has a recess in the form of a chamfer 32 is formed, for. B. by a spatial chamfering at an angle of about 30 °. In principle, however, angles between 20 ° and 40 ° are conceivable. The chamfer 32 prevents jamming of the clincher 2, staple 5 "and staple support 3. However, the bevel 32 does not extend all the way to the staple support tip 30, so that the support surfaces 31 in the staple support tip 30 are effective over the entire width the clip 5 "advantageously longer be performed.

Die Position der bereits obenstehend beschriebenen Führungsnuten 20 des Umbiegers 2 geht aus Fig. 7 hervor. Hierbei ist auch zu erkennen, dass dem Former 1 ein neuer Drahtabschnitt 5 zugeführt wird, noch während die bereits geformte Klammer 5" in ein nicht dargestelltes Produkt 200 eingestochen wird. Dadurch wird die Taktrate, mit der ein Heftkopf 100 heften kann, erhöht.The position of the above-described guide grooves 20 of the bender 2 goes out Fig. 7 out. It can also be seen here that a new wire section 5 is fed to the former 1 while the already shaped clip 5 "is being inserted into a product 200 (not shown), thereby increasing the cycle rate with which a stapling head 100 can staple.

Fig. 8 zeigt in vergrößerter Darstellung eine Momentaufnahme des Klammerbildungsvorganges zu dem Zeitpunkt, als dieser gerade abgeschlossen ist. Der Treiber 4 wird vertikal weiter nach unten bewegt, um die gebildete Klammer 5', 5" in ein nicht dargestelltes Produkt 200 zu stechen. Die Klammerstütze 3 wird eingeschwenkt, um die Klammer 5', 5" zu stützen. In Fig. 8 sind zwei alternative Ausführungsformen des Formers 1, 1' dargestellt: Eine Ausführungsform eines Formers 1' nach dem Stand der Technik und eine erfindungsgemäße Ausführungsform eines Formers 1. Die Außenkontur des erfindungsgemäßen Formers 1 wurde mit größerer Linienstärke und die Außenkontur des Formers 1' nach dem Stand der Technik wird strichliniert dargestellt. Dadurch wird deutlich, dass der Former 1 eine Stütznase 15 besitzt. Die Aufgabe dieser Stütznase 15 ist es, die Klammer 5" länger zu halten und deren Abwärtsbewegung aufzuhalten. Der Former 1' besitzt keine solche Stütznase, weshalb sich die Klammer 5' bereits in einer tieferen Position befindet und die Schenkel der Klammer 5' aus dem Umbieger 2 hervorstehen. Zur Ausbildung der Stütznase 15 wurde die untere Backe des Formers 1 verglichen mit der unteren Backe des Formers 1' um den Betrag x verlängert. Bezugszeichenliste 1 Former 30 Klammerstützenspitze 1' Former in einer Ausführungsform nach dem Stand der Technik 31 seitlicher Stützbereich 32 Ausnehmung / Fase 33 Steuerrolle 2 Umbieger 34 Führungsfläche 3 Klammerstütze 4 Treiber 40 Stirnfläche des Treibers 5 Drahtabschnitt 5' Klammer 50 Falzbogenanleger 5" Klammer 51 Klinscher 6 Magnet 52 Klinscher 7 Feder 8 Drehpunkt Former 60 Falzbogen 9 einstellbarer Anschlag 61 Falzbogenanleger 10 Drehpunkt Klammerstütze 62 Falzbogenanleger 11 Drehfeder 12 Steuerkurve 100 Heftkopf 13 Steuernocken 105 Heftkopfgrundkörper 15 Stütznase 16 Steuernase 108 Aufnahmeschiene 17 gefalzte Signaturen 109 Steuerschiene 18 gefalzte Signaturen 110 Steuerschiene 20 Führungsnut 21 Abschnitt 120 Abschneidkasten 22 Sammelkette 150 Sammelhefter 23 gefalzte Signaturen 24 Heftstation 200 Produkt 25 Führungsleiste 26 Heftkopf x Maß für Stütznase Fig. 8 shows an enlarged view of a snapshot of the stapling process at the time when it is just completed. The driver 4 is further vertically moved downwardly to pierce the formed staple 5 ', 5 "into a product 200, not shown, The staple support 3 is pivoted in to support the staple 5', 5". In Fig. 8 Two alternative embodiments of the former 1, 1 'are shown: An embodiment of a former 1' according to the prior art and an embodiment of a former 1 according to the invention. The outer contour of the former 1 according to the invention was made with greater line thickness and the outer contour of the former 1 'according to FIG The prior art is shown by dashed lines. This makes it clear that the former 1 has a support nose 15. The task of this support lug 15 is to hold the clip 5 "longer and stop its downward movement 1 'has no such support nose, which is why the clip 5' is already in a lower position and the legs of the clip 5 'protrude from the bender 2. To form the support lug 15, the lower jaw of the former 1 was compared to the lower jaw of the former 1 'extended by the amount x. <B> LIST OF REFERENCES </ b> 1 molder 30 Clip post tip 1' Former in an embodiment according to the prior art 31 lateral support area 32 Recess / chamfer 33 control roller 2 benders 34 guide surface 3 clamp support 4 driver 40 Face of the driver 5 wire section 5 ' clip 50 Signature feeder 5 ' clip 51 clinchers 6 magnet 52 clinchers 7 feather 8th Pivot Shaper 60 signatures 9 adjustable stop 61 Signature feeder 10 Fulcrum clip support 62 Signature feeder 11 torsion spring 12 cam 100 stapling head 13 control cam 105 Stitching head base body 15 support lug 16 control tab 108 receiving rail 17 folded signatures 109 control rail 18 folded signatures 110 control rail 20 guide 21 section 120 cutting box 22 collecting chain 150 saddle stitcher 23 folded signatures 24 finisher 200 product 25 guide rail 26 stapling head x Measure for support nose

Claims (9)

  1. Device for stitching collated printed products, in particular folded signatures, by means of wire staples, comprising a crimp head main body (105) which has a shaper (1) which can be pivoted about a pivot point (8) against the spring force of a spring (7), a bender (2), a staple support (3) and a driver (4), the shaper (1) having a support projection (15) for supporting a section of wire (5), for holding a staple (5") and for arresting the downward motion of the staple (5"), and a control projection (16) for controlling an outward swing of the shaper (1), characterised in that the support projection (15) projects beyond the contour of the control projection (16).
  2. Device according to Claim 1, characterised in that the contour of the control projection (16) has a curved shape.
  3. Device according to either of the preceding claims, characterised in that the staple support (3) has a curved guide face (34) along which the bridge of a shaped staple (5', 5") slides in a guided manner.
  4. Device according to Claim 3, characterised in that the guide face (34) is provided with recesses (32) in its two lateral support regions (31).
  5. Device according to Claim 4, characterised in that the recesses (32) are spacial chamfers disposed at an angle of approximately 30°.
  6. Device according to Claim 4 or 5, characterised in that the recesses (32) end before the tip of the staple support.
  7. Device according to any one of the preceding claims, characterised in that the staple support (3) is mounted pivotably in the bender (2).
  8. Device according to Claim 7, characterised in that the device includes a control cam (12), a control cam catch (13) and a control roller (33), and in that the pivoting movement of the staple support is controlled by the control cam (12) and the control cam catch (13), which cooperate with the control roller (33).
  9. Saddle stitcher having a stapling device for stapling collated printed products according to any one of Claims 1 to 8.
EP08105353.0A 2007-10-01 2008-09-16 Crimp head Active EP2045093B1 (en)

Applications Claiming Priority (1)

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DE102007047050A DE102007047050A1 (en) 2007-10-01 2007-10-01 stapling head

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US8128080B2 (en) * 2009-08-05 2012-03-06 Goss International Americas, Inc. Spring loaded corrugated stitcher head and method of stitching
ITMI20092294A1 (en) * 2009-12-23 2011-06-24 Meccanotecnica Spa BINDING BINDING MACHINE WITH BENDING STATION FOR MISSING PRE-MARKINGS OF A LAST BEND
EP2361785B1 (en) * 2010-02-18 2015-11-11 Müller Martini Holding AG Method of binding printed products with a binding machine and a binding machine for carrying out the method.
DE102010012103A1 (en) 2010-03-19 2011-09-22 Heidelberger Druckmaschinen Ag stapling head
US8695861B2 (en) * 2010-08-18 2014-04-15 William Grady Duff Stitching head
DE102012002723A1 (en) * 2012-02-10 2013-08-14 Heidelberger Druckmaschinen Aktiengesellschaft Saddle stitcher with several stitching heads
DE102012002689A1 (en) 2012-02-10 2013-08-14 Heidelberger Druckmaschinen Aktiengesellschaft saddle stitcher
JP6102890B2 (en) * 2014-11-11 2017-03-29 コニカミノルタ株式会社 Paper processing apparatus and image forming system
USD801439S1 (en) 2016-02-16 2017-10-31 Joseph Charles Fjelstad Ellipsoidal gaming die having five flatted surfaces
USD806175S1 (en) 2016-02-16 2017-12-26 Joseph Charles Fjelstad Ellipsoid based gaming die having five flatted surfaces
WO2018207335A1 (en) * 2017-05-12 2018-11-15 ホリゾン・インターナショナル株式会社 Saddle stitch binding system

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EP0399322B1 (en) * 1989-05-25 1993-07-28 Ferag AG Stitching device
DE4444220C2 (en) * 1993-12-30 1997-09-11 Hohner Maschbau Gmbh Stapling head for a stapling machine
DE19750110A1 (en) 1997-11-12 1999-05-20 Brehmer Buchbindereimaschinen Saddle stitcher
DE102006013171A1 (en) * 2006-03-22 2007-09-27 Heidelberger Druckmaschinen Ag Stapling device with a stapling head for processing eyelet staples

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CN101474922B (en) 2012-05-30
US20090085272A1 (en) 2009-04-02
EP2045093A3 (en) 2014-01-22
CN101474922A (en) 2009-07-08
DE102007047050A1 (en) 2009-04-02
EP2045093A2 (en) 2009-04-08
US7780157B2 (en) 2010-08-24

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