EP2366514A1 - Crimp head - Google Patents

Crimp head Download PDF

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Publication number
EP2366514A1
EP2366514A1 EP11155005A EP11155005A EP2366514A1 EP 2366514 A1 EP2366514 A1 EP 2366514A1 EP 11155005 A EP11155005 A EP 11155005A EP 11155005 A EP11155005 A EP 11155005A EP 2366514 A1 EP2366514 A1 EP 2366514A1
Authority
EP
European Patent Office
Prior art keywords
driver
stapling
former
staple
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.)
Granted
Application number
EP11155005A
Other languages
German (de)
French (fr)
Other versions
EP2366514B1 (en
Inventor
Torsten BrĂ¼nner
Siegmar Tischer
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP2366514A1 publication Critical patent/EP2366514A1/en
Application granted granted Critical
Publication of EP2366514B1 publication Critical patent/EP2366514B1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27FDOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F7/00Nailing or stapling; Nailed or stapled work
    • B27F7/17Stapling machines
    • B27F7/19Stapling machines with provision for bending the ends of the staples on to the work
    • B27F7/21Stapling machines with provision for bending the ends of the staples on to the work with means for forming the staples in the machine
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42BPERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES OR PERMANENTLY ATTACHING OBJECTS THERETO
    • B42B4/00Permanently 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 supplied to a further processing unit for the edge trim, a display or the like.
  • Such 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 gathering chains instead of the guide bar, which bend over the free ends of the staples pierced by the foldsheet. 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 formed 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.
  • Another stapling head for saddle stitcher is from the EP 2 045 093 A2 known. From this document, a special former with different length support tabs is known.
  • the known stitching heads work on the principle that the clip-forming elements: driver, former, Umbieger and staple support are moved functionally connected via cam-controlled strokes of the driver and the Umbiegers.
  • drivers and shapers are slidably connected to each other.
  • a disadvantage of these stitching heads that the susceptibility to wear is very high due to the direct sliding contact of the driver to the former. The reason for this is also that, simultaneously with the formation of the clip around the former, the swivel motion of the former is caused by the driver via the contact surfaces between the driver and the former, resulting in and transferring very large forces due to the unfavorable transmission conditions such as the transmission angle be attributed to the surfaces of the sliding guide.
  • Object of the present invention is therefore to overcome the disadvantages of the prior art. This object is achieved by a device for stapling collated printed products according to the characterizing part of claim 1.
  • the stapling device has a stapling head base body with a former, a clincher, a staple support and a driver.
  • the driver has a roller whose running surface forms part of the driver contour and is in rolling contact with the former contour. As a result of the rolling contact, a substantial reduction in wear on the main wear point of stitching heads is achieved.
  • 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 folding chain in the folded sheet feeder 50, 61, 62. Under the gathering chain 22, a guide strip 25 is arranged, the upper portion 21 is formed like a blade and whose straight line the transporting and bookmark 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.
  • a stitching station 24 for this purpose, arranged above the gathering stitching heads 26 and arranged underneath pairs of Klinschem 51/52, which bend the free ends of the stitching heads 26 pierced by the Falzbogenstapel 60 brackets.
  • 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 main body 105 is fixedly connected to a receiving rail 108, which performs a horizontal cyclical 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 slide the remaining movements are derived in the stapler.
  • 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 is limited in its presentation and description to the essential components.
  • FIG. 3 and 4 is another well-known stapling head 26 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.
  • Shaper 1 triggered by the downward movement of the driver 4, a pivoting movement about fulcrum. 8 against the spring force of the spring 7, wherein a first stop is formed by the adjustable stop 9 and a second stop by the driver 4 (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 takes place against 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 the appropriate length is fed to the former 1 and held there, for example, 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 purpose of the staple support 3 is to support the staple 5 "as long as possible, ie to guide the yoke of the staple 5" and to stabilize the legs of the staple 5 "during the piercing operation in the guide grooves 20 of the clincher 2.
  • the legs bend over the clip 5 "avoided.
  • Out Fig. 4 It can be seen that a new wire section 5 is fed to the former 1 even while the already formed clip 5 "is being inserted into a product 200. As a result, the cycle rate with which a stapling head 100 can staple is increased.
  • FIGS. 5a-d the stapling operation with a stapling head according to the prior art is shown in detail.
  • 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 cut stapling wire 5 is located in the former 1 and is held there by the magnet 6.
  • the driver 4 is not yet in contact with the former 1.
  • the clincher 2 is not yet in contact with the wire portion 5. Due to 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.
  • 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.
  • Fig. 5c now shows a snapshot during the stapling process.
  • the driver 4 is moved further down, the clip support 3 pivots out and the former 1 slides with its support lugs 15, 16 on the end face 40 of the driver 4 and is so held in a swung position.
  • the driver 4 drives the staple 5 "into the product 200 to be stapled.
  • Fig. 5d shows a snapshot after the stapling process.
  • the driver 4 moves up again.
  • the support lugs 15, 16 of the former slide down on the end face 40, and the former, clincher, driver and staple support return to their original position.
  • the stapling head 100 In contrast to stapling heads 26 known from the prior art and already described above, the stapling head 100 according to the invention has a driver 4 'in which a roller 42 is arranged such that the running surface of the roller 42 forms part of the contour of the roller 1 facing the former 1 End face 40 'of the driver 4' forms.
  • FIGS. 8a-d now the stapling is shown with a stapling head according to the invention.
  • Fig. 8a shows a snapshot just before the beginning of the clip formation.
  • the cut stapling wire 5 is located in the former 1 and is held there by the magnet 6.
  • the driver 4 ' is not yet in contact with the former 1 and the bender 2 has not yet made contact with the wire portion 5. Further downward movement of the bender 2 initiates the stapling operation.
  • a roller 42 forms part of the end face 40 'of the driver 4' in the stapling head according to the invention.
  • FIGS. 9a-9d show the driver 4 'according to the invention with the roller 42 in different views.

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

Abstract

The device comprises a stapling head base body, which has a shaper (1), a bender, a bracket support (3), and a driver unit (4). The driver unit comprises a roller (42), whose bearing surface forms a part of a driver unit contour (40') and stands in rolling contact with the inner contour of the shaper.

Description

Die Erfindung betrifft eine Vorrichtung zum Heften gemĂ¤ĂŸ 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. AnschlieĂŸend werden sie in einer Heftstation geheftet und danach ggf. einer Weiterverarbeitungseinheit fĂ¼r den Randbeschnitt, einer Auslage oder dergleichen zugefĂ¼hrt. 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 supplied to a further processing unit for the edge trim, a display 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 FĂ¼hrungsleiste angeordnete Klinscher, welche die freien Enden der durch die Falzbogen gestochenen Klammern umbiegen. Heftstationen und Heftköpfe fĂ¼r 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 gathering chains instead of the guide bar, which bend over the free ends of the staples pierced by the foldsheet. 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 KlammerstĂ¼tze in Nuten des Umbiegers gefĂ¼hrt und mittels eines Treibers auf das zu heftende Produkt hinzubewegt und durch dieses hindurch getrieben. 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 formed 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.

Ein weiterer Heftkopf fĂ¼r Sammelhefter ist aus der EP 2 045 093 A2 bekannt. Aus dieser Schrift ist ein spezieller Former mit unterschiedlich langen StĂ¼tznasen bekannt.Another stapling head for saddle stitcher is from the EP 2 045 093 A2 known. From this document, a special former with different length support tabs is known.

Die bekannten Heftköpfe arbeiten nach dem Prinzip, dass die klammerbildenden Elemente: Treiber, Former, Umbieger und KlammerstĂ¼tze Ă¼ber kurvengesteuerte Hubbewegungen des Treibers und des Umbiegers funktionsverbunden bewegt werden. Hierbei sind Treiber und Former miteinander gleitverbunden. Nachteilig an diesen Heftköpfen ist, dass durch den direkten Gleitkontakt des Treibers zum Former die VerschleiĂŸanfälligkeit sehr hoch ist. Grund dafĂ¼r ist auch, dass gleichzeitig mit der Klammerbildung des Umbiegers um den Former auch die Schwenkbewegung des Formers durch den Treiber Ă¼ber die Kontaktflächen zwischen Treiber und Former bewirkt wird, wodurch sehr groĂŸe Kräfte entstehen und Ă¼bertragen werden, die auf die ungĂ¼nstigen Ăœbertragungsverhältnisse beispielsweise den Ăœbertragungswinkel an den Flächen der GleitfĂ¼hrung zurĂ¼ckzufĂ¼hren sind.The known stitching heads work on the principle that the clip-forming elements: driver, former, Umbieger and staple support are moved functionally connected via cam-controlled strokes of the driver and the Umbiegers. Here, drivers and shapers are slidably connected to each other. A disadvantage of these stitching heads that the susceptibility to wear is very high due to the direct sliding contact of the driver to the former. The reason for this is also that, simultaneously with the formation of the clip around the former, the swivel motion of the former is caused by the driver via the contact surfaces between the driver and the former, resulting in and transferring very large forces due to the unfavorable transmission conditions such as the transmission angle be attributed to the surfaces of the sliding guide.

Die bekannte verschleiĂŸreduzierenden MaĂŸnahmen, wie Härten oder Beschichten von Bauteilen, oder wie aus der EP 1 872 962 A1 bekannt, die Verwendung von keramischen Bauteilen, sind sehr kostenintensiv.The well-known wear-reducing measures, such as hardening or coating of components, or as from the EP 1 872 962 A1 known, the use of ceramic components, are very expensive.

Aufgabe der vorliegenden Erfindung ist es deshalb, die Nachteile des Standes der Technik zu beheben. Gelöst wird diese Aufgabe durch eine Vorrichtung zum Heften zusammengetragener Druckprodukte gemĂ¤ĂŸ dem kennzeichnenden Teil von Anspruch 1.Object of the present invention is therefore to overcome the disadvantages of the prior art. This object is achieved by a device for stapling collated printed products according to the characterizing part of claim 1.

Die erfindungsgemĂ¤ĂŸe Heftvorrichtung weist einen Heftkopfgrundkörper mit einem Former, einem Umbieger, einer KlammerstĂ¼tze und einem Treiber auf. Der Treiber hat eine Laufrolle, deren Lauffläche einen Teil der Treiberkontur bildet und in rollendem Kontakt zur Formerkontur steht. Durch den rollenden Kontakt wird somit eine wesentliche VerschleiĂŸminderung an der HauptverschleiĂŸstelle von Heftköpfen erzielt.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 driver has a roller whose running surface forms part of the driver contour and is in rolling contact with the former contour. As a result of the rolling contact, a substantial reduction in wear on the main wear point of stitching heads is achieved.

Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung von AusfĂ¼hrungsbeispielen anhand der Figuren 1 bis 8 der beigefĂ¼gten Zeichnungen.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 gefĂ¼hrten Heftkopfs 26 gemĂ¤ĂŸ dem Stand der Technik,
Fig. 3
einen Schnitt durch einen Heftkopf gemĂ¤ĂŸ dem Stand der Technik in einer ersten Arbeitsposition
Fig. 4
einen Schnitt durch einen Heftkopf gemĂ¤ĂŸ dem Stand der Technik in einer zweiten Arbeitsposition
Fig. 5a-d
die Bewegungsabläufe zur Bildung einer Klammer in verschiedenen Momentaufnahmen mit einem Heftkopf
Fig. 6
eine dreidimensionale Detailansicht eines Heftkopfs gemĂ¤ĂŸ Stand der Technik kurz vor dem Heften
Fig. 7
einen Schnitt durch einen erfindungsgemĂ¤ĂŸen Heftkopf
Fig. 8a-d
die Bewegungsabläufe zur Bildung einer Klammer in verschiedenen Momentaufnahmen mit einem erfindungsgemĂ¤ĂŸen Heftkopf
Fig. 9a-d
verschiedene Ansichten eines erfindungsgemĂ¤ĂŸen Treibers
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 according to the prior art in a first working position
Fig. 4
a section through a stapling head according to the prior art in a second working position
Fig. 5a-d
the movements to form a clip in various snapshots with a stapling head
Fig. 6
a three-dimensional detail view of a stapling head according to the prior art shortly before stapling
Fig. 7
a section through a stapling head according to the invention
Fig. 8a-d
the movements for forming a clip in different snapshots with a stapling head according to the invention
Fig. 9a-d
different views of a driver according to the invention

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 FĂ¼hrungsleiste 25 angeordnet, deren oberer Abschnitt 21 schneidenförmig ausgebildet ist und deren Geradlinie die Transport- und Heftlinie festlegt. Die Sammelkette 22 bildet zusammen mit der FĂ¼hrungsleiste 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 Klinschem 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 folding chain in the folded sheet feeder 50, 61, 62. Under the gathering chain 22, a guide strip 25 is arranged, the upper portion 21 is formed like a blade and whose straight line the transporting and bookmark 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, arranged above the gathering stitching heads 26 and arranged underneath pairs of Klinschem 51/52, which bend the free ends of the stitching heads 26 pierced by the Falzbogenstapel 60 brackets.

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 ausfĂ¼hrt, bei der der Heftkopf auf die Transportgeschwindigkeit des zu heftenden, gesammelten Falzbogenstapels 60 gebracht wird. Zusätzlich zur seitlichen Verschiebung der Aufnahmeschiene 108 werden Ă¼ber 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 die Ă¼brigen 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 main body 105 is fixedly connected to a receiving rail 108, which performs a horizontal cyclical 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 slide the remaining movements are derived in the stapler.

An dem Heftkopfgrundkörper 105 ist ein Abschneidkasten 120 angeordnet, in den der Heftdraht 5 eingefĂ¼hrt 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 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 is limited in its presentation and description to the essential components.

In den Figuren 3 und 4 ist ein weiterer bekannter Heftkopf 26 mit seinen wesentlichen Elementen wie Former 1, Umbieger 2, KlammerstĂ¼tze 3 und Treiber 4 in zwei verschiedenen Arbeitspositionen dargestellt.In the Figures 3 and 4 is another well-known stapling head 26 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 KlammerstĂ¼tze 3 vertikal nach unten bewegt. Former 1 fĂ¼hrt, 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 KlammerstĂ¼tze 3 fĂ¼hrt eine Schwenkbewegung um Drehpunkt 10 aus. Die Verschwenkung erfolgt gegen die Federkraft einer Drehfeder 11 und durch die Abwärtsbewegung des Umbiegers 2, wobei die KlammerstĂ¼tze 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. Shaper 1, triggered by the downward movement of the driver 4, a pivoting movement about fulcrum. 8 against the spring force of the spring 7, wherein a first stop is formed by the adjustable stop 9 and a second stop by the driver 4 (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 takes place against 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 mit einem Heftkopf gemĂ¤ĂŸ Stand der Technik beschrieben: Ein im Abschneidkasten 120 in passender Länge zugeschnittener Drahtabschnitt 5 wird dem Former 1 zugefĂ¼hrt und dort beispielsweise von einem Magneten 6 gehalten. Der Umbieger 2 wird vertikal nach unten auf den Drahtabschnitt 5 hinzubewegt. Wie aus Fig. 6 ersichtlich, besitzt der Umbieger 2 zwei Schienen mit je einer innen liegenden FĂ¼hrungsnut 20, den sogenannten Umbiegerrillen. Wenn der Umbieger 2 auf die aus dem Former 1 Ă¼berstehenden Enden des Drahtabschnitts 5 trifft, werden diese Enden um ca. 90° in die FĂ¼hrungsnuten 20 gebogen. Diese umgebogenen Enden des Drahtabschnitts 5 stellen die Schenkel, das unverbogene MittelstĂ¼ck stellt das Joch der Klammer 5" dar. Sobald die Klammer 5" gebildet ist, wird der Former 1 ausgeschwenkt und die KlammerstĂ¼tze 3 eingeschwenkt. Aufgabe der KlammerstĂ¼tze 3 ist es, die Klammer 5" möglichst lange zu stĂ¼tzen, d. h. das Joch der Klammer 5" zu fĂ¼hren und die Schenkel der Klammer 5" beim Einstechvorgang in den FĂ¼hrungsnuten 20 des Umbiegers 2 zu stabilisieren. Dadurch wird ein Umknicken der Schenkel der Klammer 5" vermieden. Aus Fig. 4 ist zu erkennen, dass dem Former 1 ein neuer Drahtabschnitt 5 zugefĂ¼hrt wird, noch während die bereits geformte Klammer 5" in ein Produkt 200 eingestochen wird. Dadurch wird die Taktrate, mit der ein Heftkopf 100 heften kann, erhöht.The clip-forming process with a stapling head according to the prior art is briefly described below: A wire section 5 cut to length in the cutting box 120 in the appropriate length is fed to the former 1 and held there, for example, by a magnet 6. The bender 2 is moved vertically downward on the wire section 5. How out Fig. 6 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 purpose of the staple support 3 is to support the staple 5 "as long as possible, ie to guide the yoke of the staple 5" and to stabilize the legs of the staple 5 "during the piercing operation in the guide grooves 20 of the clincher 2. As a result, the legs bend over the clip 5 "avoided. Out Fig. 4 It can be seen that a new wire section 5 is fed to the former 1 even while the already formed clip 5 "is being inserted into a product 200. As a result, the cycle rate with which a stapling head 100 can staple is increased.

Bei der Darstellung des Heftkopfes 26 in Fig. 4 ist der Klammerbildungsvorgang ist bereits abgeschlossen und die Klammer 5" wurde vom Treiber 4 in ein Produkt 200 gestoĂŸen. 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 KlammerstĂ¼tze 3. Der Treiber 4 befindet sich im Moment des Heftens in seinem tiefsten Punkt und wird nachfolgend wieder vertikal nach oben bewegt.In the illustration of the stapling head 26 in Fig. 4 if the stapling operation has already been completed and the staple 5 "has been pushed by the driver 4 into a product 200. Not shown are staple pans or clinches for bending over the legs of the staple 5" located below the product 200. The former 1 was deflected by the driver 4, as well as the bracket support 3. The driver 4 is currently Stapling at its lowest point and is subsequently moved back vertically up.

In den Figuren 5a-d ist der Klammerbildungsvorgang mit einem Heftkopf gemĂ¤ĂŸ Stand der Technik detailliert dargestellt. Fig. 5a zeigt eine Momentaufnahme kurz vor Beginn der Klammerbildung. Die Steuerrolle 33 der KlammerstĂ¼tze 3 liegt an dem senkrechten Kurvensegment der Steuerkurve 12 an und hält die KlammerstĂ¼tze 3 in ausgeschwenktem Zustand. Der abgeschnittene Heftdraht 5 befindet sich im Former 1 und wird dort vom Magneten 6 gehalten. Der Treiber 4 ist noch nicht in Kontakt mit dem Former 1. Der Umbieger 2 ist noch nicht in Kontakt mit dem Drahtabschnitt 5. Durch die weitere Abwärtsbewegung des Umbiegers 2 setzt der Klammerbildungsvorgang ein. Zusammen mit dem Umbieger 2 wird auch die KlammerstĂ¼tze 3 abwärts bewegt. Die Steuerrolle 33 folgt dabei der Steuerkurve 12 und bewirkt ein Einschwenken der KlammerstĂ¼tze 3, so dass diese die Klammer 5" ab dem Moment ihrer Bildung stĂ¼tzt. Aufgrund der Reibungskraft der Klammer 5" im Umbieger 2, welche insbesondere bei dicken Drähten schnell grĂ¶ĂŸer ist als die Federkraft der Drehfeder 11, wĂ¼rde die Klammer 5" mit dem Umbieger vertikal nach unten bewegt und die KlammerstĂ¼tze 3 ausgeschwenkt werden. Um dies zu verhindern besitzt der Heftkopf 100 einen Steuernocken 13, welcher die KlammerstĂ¼tze 3 weiter in eingeschwenktem Zustand hält, so dass die KlammerstĂ¼tze 3 länger ihre StĂ¼tz- und FĂ¼hrungsfunktion ausfĂ¼hren kann und die Schenkel der Klammer 5" nicht Ă¼ber den Umbieger 2 hinausstehen. Die Steuerrolle 33 der KlammerstĂ¼tze 3 rollt dabei, wie in Fig. 5b gezeigt, auf dem Steuernocken 13 ab. Gleichzeitig zu diesen Bewegungsabläufen wird auch der Treiber 4 abwärtsbewegt. Die Stirnfläche 40 des Treibers 4 kommt mit der Innenkontur 41 des Formers 1 in BerĂ¼hrung und verschiebt ihn nach auĂŸen. Die Klammer wird nun vom Umbieger 2 und der KlammerstĂ¼tze 3 gehalten. Diese Momentaufnahme unmittelbar nach der Klammerbildung, aber noch vor Eintreiben der Klammer in das zu heftende Produkt 200, ist in Fig. 5b dargestellt.In the FIGS. 5a-d the stapling operation with a stapling head according to the prior art is shown in detail. 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 cut stapling wire 5 is located in the former 1 and is held there by the magnet 6. The driver 4 is not yet in contact with the former 1. The clincher 2 is not yet in contact with the wire portion 5. Due to 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. Simultaneously with these movements, the driver 4 is also moved downwards. The end face 40 of the driver 4 comes into contact with the inner contour 41 of the former 1 and shifts it outward. The clamp is now held by the bender 2 and the staple support 3. This snapshot immediately after the staple formation, but still before driving the staple into the product 200 to be stapled, is in Fig. 5b shown.

Fig. 5c zeigt nun eine Momentaufnahme während des eigentlichen Heftvorgangs. Der Treiber 4 wird weiter abwärts bewegt, die KlammerstĂ¼tze 3 schwenkt aus und der Former 1 gleitet mit seinen StĂ¼tznasen 15, 16 weiter auf der Stirnfläche 40 des Treibers 4 und wird so in ausgeschwenkter Position gehalten. Der Treiber 4 treibt die Heftklammer 5" in das zu heftende Produkt 200. Fig. 5c now shows a snapshot during the stapling process. The driver 4 is moved further down, the clip support 3 pivots out and the former 1 slides with its support lugs 15, 16 on the end face 40 of the driver 4 and is so held in a swung position. The driver 4 drives the staple 5 "into the product 200 to be stapled.

Fig. 5d zeigt eine Momentaufnahme nach dem Heftvorgang. Der Treiber 4 bewegt sich wieder nach oben. Die StĂ¼tznasen 15, 16 des Formers gleiten an der Stirnfläche 40 nach unten und Former, Umbieger, Treiber und KlammerstĂ¼tze gehen in ihre Ausgangslage zurĂ¼ck. Fig. 5d shows a snapshot after the stapling process. The driver 4 moves up again. The support lugs 15, 16 of the former slide down on the end face 40, and the former, clincher, driver and staple support return to their original position.

In der Figur 7 ist ein erfindungsgemĂ¤ĂŸer Heftkopf 100 dargestellt. In Abweichung zu aus dem Stand der Technik bekannten und oben bereits beschriebenen Heftköpfen 26 weist der erfindungsgemĂ¤ĂŸe Heftkopf 100 einen Treiber 4' auf, in welchem eine Laufrolle 42 so angeordnet ist, dass die Lauffläche der Laufrolle 42 einen Teil der dem Former 1 zugewandten Kontur der Stirnfläche 40' des Treibers 4' bildet.In the FIG. 7 an inventive stapling head 100 is shown. In contrast to stapling heads 26 known from the prior art and already described above, the stapling head 100 according to the invention has a driver 4 'in which a roller 42 is arranged such that the running surface of the roller 42 forms part of the contour of the roller 1 facing the former 1 End face 40 'of the driver 4' forms.

In den Figuren 8a-d ist nun die Klammerbildung mit einem erfindungsgemĂ¤ĂŸen Heftkopf dargestellt. Fig. 8a zeigt eine Momentaufnahme kurz vor Beginn der Klammerbildung. Der abgeschnittene Heftdraht 5 befindet sich im Former 1 und wird dort vom Magneten 6 gehalten. Der Treiber 4' ist noch nicht in Kontakt mit dem Former 1 und der Umbieger 2 hat noch keinen Kontakt mit dem Drahtabschnitt 5. Durch weitere Abwärtsbewegung des Umbiegers 2 setzt der Klammerbildungsvorgang ein. Im Unterschied zu dem Vorgang, wie er weiter dem zu den Heftköpfen gemĂ¤ĂŸ Stand der Technik beschrieben wurde, bildet beim erfindungsgemĂ¤ĂŸen Heftkopf eine Laufrolle 42 einen Teil der Stirnfläche 40' des Treibers 4'.In the FIGS. 8a-d now the stapling is shown with a stapling head according to the invention. Fig. 8a shows a snapshot just before the beginning of the clip formation. The cut stapling wire 5 is located in the former 1 and is held there by the magnet 6. The driver 4 'is not yet in contact with the former 1 and the bender 2 has not yet made contact with the wire portion 5. Further downward movement of the bender 2 initiates the stapling operation. In contrast to the process described further in relation to the stapling heads according to the prior art, a roller 42 forms part of the end face 40 'of the driver 4' in the stapling head according to the invention.

Wie aus Fig. 8b zu ersehen, gerät bei der Abwärtsbewegung des Treibers 4' zunächst die Laufrolle 42 mit der Innenkontur 41 des Formers 1 in Kontakt und lenkt diesen durch Abrollbewegung auf der Kontur 41 nach auĂŸen aus.How out Fig. 8b can be seen in the downward movement of the driver 4 ', first the roller 42 with the inner contour 41 of the former 1 in contact and deflects this by rolling on the contour 41 to the outside.

Die weiteren Abläufe gemĂ¤ĂŸ den Figuren 8c und 8d entsprechen denen der Figuren 5c und 5d.The further processes according to the Figures 8c and 8d correspond to those of FIGS. 5c and 5d ,

Die Figuren 9a-9d zeigen den erfindungsgemĂ¤ĂŸen Treiber 4' mit der Laufrolle 42 in verschiedenen Ansichten.The Figures 9a-9d show the driver 4 'according to the invention with the roller 42 in different views.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Formermolder
22
Umbiegerbenders
33
KlammerstĂ¼tzeclamp support
4, 4'4, 4 '
Treiberdriver
55
Drahtabschnittwire section
5'5 '
Klammerclip
5"5 '
Klammerclip
66
Magnetmagnet
77
Federfeather
88th
Drehpunkt FormerPivot Shaper
99
einstellbarer Anschlagadjustable stop
1010
Drehpunkt KlammerstĂ¼tzeFulcrum clip support
1111
Drehfedertorsion spring
1212
Steuerkurvecam
1313
Steuernockencontrol cam
1515
StĂ¼tznasesupport lug
1616
Steuernasecontrol tab
1717
gefalzte Signaturenfolded signatures
1818
gefalzte Signaturenfolded signatures
2020
FĂ¼hrungsnutguide
2121
Abschnittsection
2222
Sammelkettecollecting chain
2323
gefalzte Signaturenfolded signatures
2424
Heftstationfinisher
2525
FĂ¼hrungsleisteguide rail
2626
Heftkopfstapling head
3030
KlammerstĂ¼tzenspitzeClip post tip
3333
Steuerrollecontrol roller
40, 40'40, 40 '
Stirnfläche des TreibersFace of the driver
4141
Innenkontur des FormersInner contour of the former
4242
Laufrollecaster
5050
FalzbogenanlegerSignature feeder
5151
Klinscherclinchers
5252
Klinscherclinchers
6060
Falzbogensignatures
6161
FalzbogenanlegerSignature feeder
6262
FalzbogenanlegerSignature feeder
100100
Heftkopfstapling head
105105
HeftkopfgrundkörperStitching head base body
108108
Aufnahmeschienereceiving rail
109109
Steuerschienecontrol rail
110110
Steuerschienecontrol rail
120120
Abschneidkastencutting box
150150
Sammelheftersaddle stitcher
200200
Produktproduct

Claims (4)

Vorrichtung zum Heften zusammengetragener Druckprodukte, insbesondere von gefalzten Signaturen, mittels Drahtklammem, mit einem Heftkopfgrundkörper (105), der einen Former (1), einen Umbieger (2), eine KlammerstĂ¼tzte (3) und einen Treiber (4) aufweist,
dadurch gekennzeichnet,
dass der Treiber eine Laufrolle (42) aufweist, deren Lauffläche einen Teil der Treiberkontur (40') bildet und in rollendem Kontakt zur Innenkontur (41) des Formers (1) steht.
Apparatus for stapling collated printed products, in particular folded signatures, by means of wire clamps, comprising a stapling head base body (105) having a former (1), a clincher (2), a staple support (3) and a driver (4),
characterized,
in that the driver has a roller (42) whose running surface forms part of the driver contour (40 ') and is in rolling contact with the inner contour (41) of the former (1).
Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass bei der Abwärtsbewegung des Treibers (4') zunächst die Laufrolle 42 mit der Innenkontur (41) des Formers (1) in Kontakt kommt.
Device according to claim 1,
characterized,
that during the downward movement of the driver (4 ') first the roller 42 comes into contact with the inner contour (41) of the former (1).
Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass bei weiterer Abwärtsbewegung des Treibers (4') die Treiberkontur (40') des Treibers (4') in Kontakt mit der Innenkontur (41) des Formers (1) steht.
Apparatus according to claim 1 or 2,
characterized,
that upon further downward movement of the driver (4 '), the driver contour (40') of the driver (4 ') is in contact with the inner contour (41) of the former (1).
Sammelhefter mit einer Heftvorrichtung zum Heften zusammengetragener Druckprodukte nach einem der AnsprĂ¼che 1 bis 3.Saddle stitcher with a stapling device for stapling collated printed products according to one of claims 1 to 3.
EP20110155005 2010-03-19 2011-02-18 Device for stapling Not-in-force EP2366514B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010012103A DE102010012103A1 (en) 2010-03-19 2010-03-19 stapling head

Publications (2)

Publication Number Publication Date
EP2366514A1 true EP2366514A1 (en) 2011-09-21
EP2366514B1 EP2366514B1 (en) 2012-10-17

Family

ID=44201332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110155005 Not-in-force EP2366514B1 (en) 2010-03-19 2011-02-18 Device for stapling

Country Status (3)

Country Link
EP (1) EP2366514B1 (en)
CN (1) CN102189866A (en)
DE (1) DE102010012103A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012002723A1 (en) * 2012-02-10 2013-08-14 Heidelberger Druckmaschinen Aktiengesellschaft Saddle stitcher with several stitching heads

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4444220C2 (en) 1993-12-30 1997-09-11 Hohner Maschbau Gmbh Stapling head for a stapling machine
EP0916514A1 (en) 1997-11-12 1999-05-19 Brehmer Buchbindereimaschinen GmbH Gathering and stitching machine
EP1872962A1 (en) 2006-06-23 2008-01-02 MĂ¼ller Martini Holding AG Stapling device for printed products having a ceramic component
EP2045093A2 (en) 2007-10-01 2009-04-08 Heidelberger Druckmaschinen Aktiengesellschaft Crimp head

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4444220C2 (en) 1993-12-30 1997-09-11 Hohner Maschbau Gmbh Stapling head for a stapling machine
EP0916514A1 (en) 1997-11-12 1999-05-19 Brehmer Buchbindereimaschinen GmbH Gathering and stitching machine
EP1872962A1 (en) 2006-06-23 2008-01-02 MĂ¼ller Martini Holding AG Stapling device for printed products having a ceramic component
EP2045093A2 (en) 2007-10-01 2009-04-08 Heidelberger Druckmaschinen Aktiengesellschaft Crimp head

Also Published As

Publication number Publication date
CN102189866A (en) 2011-09-21
EP2366514B1 (en) 2012-10-17
DE102010012103A1 (en) 2011-09-22

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