EP1108561B1 - Device for sealing binding thread - Google Patents

Device for sealing binding thread Download PDF

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Publication number
EP1108561B1
EP1108561B1 EP00125258A EP00125258A EP1108561B1 EP 1108561 B1 EP1108561 B1 EP 1108561B1 EP 00125258 A EP00125258 A EP 00125258A EP 00125258 A EP00125258 A EP 00125258A EP 1108561 B1 EP1108561 B1 EP 1108561B1
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EP
European Patent Office
Prior art keywords
sealing
counter
stitched
pressure
thread
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00125258A
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German (de)
French (fr)
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EP1108561A3 (en
EP1108561A2 (en
Inventor
Lutz Richter
Jürgen Röder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP1108561A2 publication Critical patent/EP1108561A2/en
Publication of EP1108561A3 publication Critical patent/EP1108561A3/en
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Publication of EP1108561B1 publication Critical patent/EP1108561B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42B—PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES OR PERMANENTLY ATTACHING OBJECTS THERETO
    • B42B4/00—Permanently attaching together sheets, quires or signatures by discontinuous stitching with filamentary material, e.g. wire
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1051—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by folding

Definitions

  • the invention relates to a device for sealing stitching threads on material to be sealed, wherein the material to be sealed with inserted stitching threads of the sealing device is fed.
  • Such a method is known for example from DE 44 01 153 C1. Doing so proposed a thread sealing machine that has a heating rail. The folding sheets have pierced sealing threads, which on the heating rail overflow to the Folded sheets are pressed so that the melting thread portion of the sealing thread melts and a firm bond with the folded sheet is formed.
  • a disadvantage of such devices for sealing is that the thread to be sealed, the usually slides over the heating rail in two thread clip legs, during the entire contact time with the thread sealing machine is exposed to a relative movement. Because the thread clip legs together with the folded sheet over the heating rail a squeegee or rubbing load is created on the thread clip legs, which in the worst case cuts off the thread clip legs. In practice, therefore mainly worked with a low pressure force of the heating rail, which however Holding force of the thread clip legs limited on the folded sheet. Often continues due to the friction effect between the thread clip leg and the heating rail large part of the thermoplastic material detached from the thread. So that will however, the adhesion of the thread to the folded sheet is reduced. In addition, you can the melt residues remaining on the heating rail solidify Soil the folded sheet and lead to production disruptions.
  • the object of the present invention is accordingly to provide a sealing element for sealing of folding sheets to propose with which an improved liability of the Thread clip legs on the folded product can be achieved.
  • the one Has contact surface which during the sealing process with the material to be sealed in Touch stands and approaches at almost the same speed as that sealing Good moves are linked to a number of advantages. So occurs between that Sealing element and the thread clip legs no undesirable Relative speed, which is an abrasion in a particularly advantageous manner Thread clip legs and their eventual tearing prevented. Beyond that the quality of the thread sealing significantly increase, as the pressure with which the Contact area of the sealing element acting on the material to be sealed can be increased can, resulting in the better transfer of heat and pressure to the resulting Thread clip legs for a better connection of the thread clip legs with the leads to the sealable good.
  • Fig. 1 is a good 10 to be sealed, for example folded sheets of paper, cardboard or the like, shown moving in the direction of arrow A
  • the movement of the Folded sheet 10 is usually ensured by a conveyor element, not shown.
  • the folded sheet to be sealed usually in the fold line, continuously specially twisted pieces of thread, so-called Thread clips 12, which contain a fusible portion.
  • the Thread clip is inserted in the back of the folded sheet so that the underside of the folded sheets a first thread clip leg 14 and a second Thread clip legs 16 lie.
  • the thread clip 12 enters the gap between one Counter pressure roller 18 and a sealing roller 20.
  • the counter pressure roller 18 rotates in Direction of rotation B and the sealing roller 20 in the direction of rotation C.
  • the counter pressure roller can also serve as a transport roller in this case with the help of a Pressure device 22, for example a spring, mounted so that the through the gap running thread clip 12 is pressed onto the sealing roller 20.
  • the sealing roll points usually has a heating element 24, which extends at least along a portion of the Sealing roll extends. However, it is also possible to place the heating element inside the Seal roll to be provided along the entire circumference. In addition, it is possible to Inside the sealing roll to provide a variety of separate heating elements are separated from each other and can be controlled separately. During the run through the gap between the counter-pressure roller 18 and the sealing roller 20 acts through the Both rollers 18 and 20 generated pressure on the thread clip legs 14 and 16.
  • the thread clip legs 14 and 16 are those of the heating element 24 generated exposure to heat.
  • the surfaces of the counter pressure roller 18 and the sealing roller 20 are at this process at essentially the same transport speed as that sealing good 10 moves. This will make the two slide Thread clip legs 14 and 16 avoided on the sealing element, so that a high Contact pressure can be applied without the thread clip legs being torn off become.
  • the thread clamp After passing the gap between the sealing roller 20 and the Counter-pressure roller 18 is the thread clamp, as shown in FIG. 12a, with its legs 14a and 16a firmly connected to the folded sheets.
  • FIG. 10 A further embodiment of the invention is shown schematically in FIG. Folded sheets 10 are moved along the transport direction A.
  • the movement of the folding sheets in the transport direction A is supported on the one hand by the counter pressure roller 18, which turns in direction B.
  • the folded sheets lie on the surface of one Sealing tape 26, which moves in the direction D and thereby a speed has, which on the contact surface with the folded sheet 10 substantially with the The speed of the folded sheet 10 is the same.
  • the counter pressure roller 18 has a Counter-pressure element 22, and is arranged so that between the sealing tape 26 and the counter-pressure roller 18 creates a gap through which the folded sheets 10 with their previously introduced thread clips 12 are moved. After introducing the Thread clip 12 are the two thread clip legs 14 and 16, corresponding to the Figure 1 directed vertically downwards.
  • the two Thread clip legs 14 and 16 As soon as the two thread clip legs 14 and 16, however, run in between the gap through the sealing tape 26 and it facing surface of the folded sheet 10 is formed, the two Thread clip legs folded. With the help of a close to the surface of the Sealing tape 26 and the heating element 28 facing the folded sheet is during the passage the thread clip heated each of the two thread clip legs, so that the in the Thread clamp melted existing thermoplastic portion and the sealing thread then a firm connection with the folded sheet 10 can enter. After passing the Area of the heating element 28, the two thread clip legs 14a and 16a are fixed connected to the folded sheet 10. It is possible to make this connection through at least one arranged under the conveyor belt opposite the counter pressure roller 18 Pressure roller 30 to improve.
  • the sealing element has one Carriage movable in transport direction A, which includes a heating element 28.
  • the Sealing carriage 32 is able to execute a movement curve 38. This can for example by connecting the sealing slide 32 to a rod 34 on one Eccentric point 40 of a rotating element 36, for example a disk, is generated become.
  • the sealing slide can also be used here moved along the desired sealing path, such as. B. a linear motor.
  • FIG Interaction with an upstream thread station 42 of a thread sealing machine shown advantageously each of the devices described so far Figures 1, 2 and 3 can be used as a sealing station 44.
  • a sealing station 44 which is a movable Sealing device
  • the thread station 42 which is used to insert the thread into the Good 10 to be sealed, completely separate from the sealing station 44.
  • the thread station 42 is now separated from the sealing station 44, it has proven to be proved to be advantageous to provide a folding element 56 in front of the sealing station 44.
  • This Folding element which is attached at a distance from the transport path 46, is thereby provided below the transport path 46 so that an alignment of the Thread clip legs in the desired direction can be achieved. Since that Folding element 56 does not exert any pressure on the thread clip legs, these become gently folded and thus already in the correct orientation of the sealing station 44 fed.
  • the switching element 56 is positioned so that it Bridged transfer area between the thread station 42 and the sealing station 44. The Folded sheets accordingly move from the thread station 42, in which a thread is introduced is, via the folding element 56, in which the thread legs are aligned, in the Sealing station 44, in which the thread legs are firmly connected to the material to be sealed.
  • Thread station 42 With the help of the thread station 42, it is possible to twist the specially and with one meltable portion provided thread pieces in the fold line of the folded sheet contribute. This is usually done in the thread station 42 Needle penetration gear 48 used, which in cooperation with a thread plate chain 50, a conveyor chain 52 and an insertion chain 54 the introduction of the sealing thread into the Folded sheet enables.
  • the heating elements previously described in Figures 1, 2 and 3 can be used as Electron induction or radiant heaters. It is also possible perform the counter pressure elements as counter pressure rollers, belts or slides, whereby the counter pressure elements at the point of contact with the folded sheet essentially move at the same speed as the folded sheets themselves.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Package Closures (AREA)
  • Inorganic Insulating Materials (AREA)
  • Details Of Garments (AREA)
  • Sewing Machines And Sewing (AREA)
  • Basic Packing Technique (AREA)
  • Making Paper Articles (AREA)

Abstract

A method for improving the heat sealing of the binding threads (12) in a book binding process has the heating element (24) moving at the same speed as the binding sites, in a continuous manufacturing process. The synchronisation of the heating element with the binding site is achieved by one of several methods including; rotating heating rollers, a circulating belt feed, a reciprocating drive for the heating elements etc. The process does not drag the binding material nor does it shear off the binding elements.

Description

Die Erfindung betrifft eine Vorrichtung zum Siegeln von Heftfäden an zu siegelndem Gut, wobei das zu siegelnde Gut mit eingestochenen Heftfäden der Vorrichtung zum Siegeln zugeführt wird.The invention relates to a device for sealing stitching threads on material to be sealed, wherein the material to be sealed with inserted stitching threads of the sealing device is fed.

Ein solches Verfahren ist beispielsweise aus der DE 44 01 153 C1 bekannt. Dabei wird eine Fadensiegelmaschine vorgeschlagen, die eine Heizschiene aufweist. Die Falzbogen weisen eingestochene Siegelfäden auf, die beim Überlaufen der Heizschiene an den Falzbogen gepreßt werden, so daß der Schmelzfadenanteil des Siegelfaden schmilzt und eine feste Bindung mit dem Falzbogen eingeht.Such a method is known for example from DE 44 01 153 C1. Doing so proposed a thread sealing machine that has a heating rail. The folding sheets have pierced sealing threads, which on the heating rail overflow to the Folded sheets are pressed so that the melting thread portion of the sealing thread melts and a firm bond with the folded sheet is formed.

Nachteilig an derartigen Vorrichtungen zum Siegeln ist, daß der anzusiegelnde Faden, der üblicherweise in zwei Fadenklammerschenkeln über die Heizschiene gleitet, während der gesamten Kontaktzeit mit der Fadensiegelmaschine einer Relativbewegung ausgesetzt ist. Da die Fadenklammerschenkel gemeinsam mit den Falzbogen über die Heizschiene gezogen werden, entsteht auf die Fadenklammerschenkel eine Rakel- oder Reibebelastung, die im ungünstigsten Fall die Fadenklammerschenkel abtrennt. In der Praxis wird daher überwiegend mit einer geringen Andruckkraft der Heizschiene gearbeitet, was jedoch die Haltekraft der Fadenklammerschenkel am Falzbogen begrenzt. Weiterhin wird oftmals durch die Reibewirkung zwischen dem Fadenklammerschenkel und der Heizschiene ein großer Teil des thermoplastischen Materials aus dem Faden herausgelöst. Damit wird jedoch die Haftwirkung des Fadens an dem Falzbogen vermindert. Darüber hinaus können die auf der Heizschiene zurückgebliebenen Schmelzrückstände sich verfestigen, den Falzbogen verschmutzen und zu Produktionsstörungen führen. A disadvantage of such devices for sealing is that the thread to be sealed, the usually slides over the heating rail in two thread clip legs, during the entire contact time with the thread sealing machine is exposed to a relative movement. Because the thread clip legs together with the folded sheet over the heating rail a squeegee or rubbing load is created on the thread clip legs, which in the worst case cuts off the thread clip legs. In practice, therefore mainly worked with a low pressure force of the heating rail, which however Holding force of the thread clip legs limited on the folded sheet. Often continues due to the friction effect between the thread clip leg and the heating rail large part of the thermoplastic material detached from the thread. So that will however, the adhesion of the thread to the folded sheet is reduced. In addition, you can the melt residues remaining on the heating rail solidify Soil the folded sheet and lead to production disruptions.

Aufgabe der vorliegenden Erfindung ist es entsprechend, ein Siegelelement zum Siegeln von Falzbogen vorzuschlagen, mit dem eine verbesserte Haftung der Fadenklammerschenkel an dem Falzprodukt erzielt werden kann.The object of the present invention is accordingly to provide a sealing element for sealing of folding sheets to propose with which an improved liability of the Thread clip legs on the folded product can be achieved.

Diese Aufgabe wird durch eine Vorrichtung gemäß den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a device according to the features of claim 1 solved.

Verfahrenstechnisch wird diese Aufgabe durch die Merkmale gemäß Anspruch 10 gelöst.In terms of process engineering, this object is achieved by the features according to claim 10.

Mit dem erfindungsgemäßen Konzept, ein Siegelelement vorzusehen, das eine Berührungsfläche aufweist, die während des Siegelvorganges mit dem zu siegelnden Gut in Berührung steht und sich mit annähernd der gleichen Geschwindigkeit wie das zu siegelnde Gut bewegt, sind eine Reihe von Vorteilen verknüpft. So tritt zwischen dem Siegelelement und den Fadenklammerschenkeln keine unerwünschte Relativgeschwindigkeit auf, was in besonders vorteilhafter Weise einen Abrieb der Fadenklammerschenkel sowie deren eventuellen Abriß verhindert. Darüber hinaus läßt sich die Qualität der Fadensiegelung deutlich erhöhen, da der Druck, mit dem die Berührungsfläche des Siegelelementes auf das zu siegelnde Gut einwirkt erhöht werden kann, wodurch die daraus resultierende bessere Übermittlung von Hitze und Druck auf die Fadenklammerschenkel zu einer besseren Verbindung der Fadenklammerschenkel mit dem zu siegelnden Gut führt.With the concept according to the invention to provide a sealing element, the one Has contact surface which during the sealing process with the material to be sealed in Touch stands and approaches at almost the same speed as that sealing Good moves are linked to a number of advantages. So occurs between that Sealing element and the thread clip legs no undesirable Relative speed, which is an abrasion in a particularly advantageous manner Thread clip legs and their eventual tearing prevented. Beyond that the quality of the thread sealing significantly increase, as the pressure with which the Contact area of the sealing element acting on the material to be sealed can be increased can, resulting in the better transfer of heat and pressure to the resulting Thread clip legs for a better connection of the thread clip legs with the leads to the sealable good.

Weitere Vorteile und vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der nachfolgenden Figuren sowie deren Beschreibungen bei deren Darstellung zugunsten der Übersichtlichkeit auf eine maßstabsgetreue Wiedergabe verzichtet wurde.Further advantages and advantageous embodiments of the invention are the subject of following figures and their descriptions in their representation in favor of Clarity on a true-to-scale reproduction has been dispensed with.

Es zeigen im einzelnen:

Fig. 1
eine schematische Darstellung einer erfindungsgemäßen Siegelrolle im Querschnitt
Fig. 2
eine schematische Darstellung eines erfindungsgemäßen Siegelbandes im Querschnitt
Fig. 3
eine schematische Darstellung eines erfindungsgemäßen Siegelschlittens im Querschnitt
Fig. 4
die schematische Darstellung einer erfindungsgemäßen Faden- und Siegelstation.
The individual shows:
Fig. 1
a schematic representation of a sealing roller according to the invention in cross section
Fig. 2
a schematic representation of a sealing tape according to the invention in cross section
Fig. 3
a schematic representation of a sealing carriage according to the invention in cross section
Fig. 4
the schematic representation of a thread and sealing station according to the invention.

In Fig. 1 ist ein zu siegelndes Gut 10, beispielsweise Falzbogen aus Papier, Karton oder dergleichen, dargestellt, die sich in Pfeilrichtung A bewegen Die Bewegung der Falzbogen 10 wird üblicherweise durch ein nicht gezeigtes Förderorgan gewährleistet. In einer vorhergehenden Fadenstation werden den zu siegelnden Falzbogen, üblicherweise in die Falzlinie, fortlaufend speziell verzwirnte Fadenstücke, sogenannte Fadenklammern 12, eingebracht, die einen schmelzbaren Anteil enthalten. Die Fadenklammer wird dabei so in den Rücken der Falzbogen eingebracht, dass auf der Unterseite der Falzbogen ein erster Fadenklammerschenkel 14 sowie ein zweiter Fadenklammerschenkel 16 liegen. Durch eine weitere Bewegung der zu siegelnden Falzbogen in Richtung A gelangt die Fadenklammer 12 in den Spalt zwischen einer Gegedruckrolle 18 und einer Siegelrolle 20. Die Gegendruckrolle 18 dreht sich dabei in Drehrichtung B und die Siegelrolle 20 in Drehrichtung C. Die Gegendruckrolle, die gleichzeitig als Transportrolle dienen kann, ist in diesem Falle mit Hilfe einer Andruckvorrichtung 22, beispielsweise einer Feder, so gelagert, daß die durch den Spalt laufende Fadenklammer 12 an die Siegelrolle 20 angedrückt wird. Die Siegelrolle weist üblicherweise ein Heizelement 24 auf, das sich zumindest entlang eines Teilbereiches der Siegelrolle erstreckt. Es ist jedoch auch möglich, das Heizelement im Inneren der Siegelrolle entlang des gesamten Umfang vorzusehen. Darüber hinaus ist es möglich, im Inneren der Siegelrolle eine Vielzahl von separaten Heizelementen vorzusehen, die voneinander getrennt sind und separat ansteuerbar sind. Während des Durchlaufes durch den Spalt zwischen der Gegendruckrolle 18 und der Siegelrolle 20 wirkt der durch die beiden Rollen 18 und 20 erzeugte Druck auf die Fadenklammerschenkel 14 und 16 ein. In Fig. 1 is a good 10 to be sealed, for example folded sheets of paper, cardboard or the like, shown moving in the direction of arrow A The movement of the Folded sheet 10 is usually ensured by a conveyor element, not shown. In a previous thread station, the folded sheet to be sealed, usually in the fold line, continuously specially twisted pieces of thread, so-called Thread clips 12, which contain a fusible portion. The Thread clip is inserted in the back of the folded sheet so that the underside of the folded sheets a first thread clip leg 14 and a second Thread clip legs 16 lie. By another movement of the to be sealed Folded sheet in direction A, the thread clip 12 enters the gap between one Counter pressure roller 18 and a sealing roller 20. The counter pressure roller 18 rotates in Direction of rotation B and the sealing roller 20 in the direction of rotation C. The counter pressure roller, the can also serve as a transport roller in this case with the help of a Pressure device 22, for example a spring, mounted so that the through the gap running thread clip 12 is pressed onto the sealing roller 20. The sealing roll points usually has a heating element 24, which extends at least along a portion of the Sealing roll extends. However, it is also possible to place the heating element inside the Seal roll to be provided along the entire circumference. In addition, it is possible to Inside the sealing roll to provide a variety of separate heating elements are separated from each other and can be controlled separately. During the run through the gap between the counter-pressure roller 18 and the sealing roller 20 acts through the Both rollers 18 and 20 generated pressure on the thread clip legs 14 and 16.

Darüber hinaus sind die Fadenklammerschenkel 14 und 16 der durch das Heizelement 24 erzeugten Wärmeeinwirkung ausgesetzt. Dadurch werden die Fadenklammerschenkel 14 und 16 entgegen der Transportrichtung A umgelegt und an das Papier angepreßt. Dabei schmilzt der thermoplastische Fadenanteil und versiegelt den Faden fest mit den Falzbogen. Die Oberflächen der Gegendruckrolle 18 und der Siegelrolle 20 werden bei diesem Vorgang im wesentlichen mit der gleichen Transportgeschwindigkeit wie das zu siegelnde Gut 10 bewegt. Damit wird ein Gleiten der beiden Fadenklammerschenkel 14 und 16 an dem Siegelelement vermieden, so daß ein hoher Anpreßdruck angewandt werden kann, ohne daß die Fadenklammerschenkel abgerissen werden. Nach Passieren des Spaltes zwischen der Siegelrolle 20 und der Gegendruckrolle 18 ist die Fadenklammer, wie in 12a gezeigt, mit ihren Schenkeln 14a und 16a fest mit den Falzbogen verbunden.In addition, the thread clip legs 14 and 16 are those of the heating element 24 generated exposure to heat. As a result, the thread clip legs 14 and 16 folded against the transport direction A and pressed against the paper. there the thermoplastic thread melts and seals the thread tightly with the Folded sheets. The surfaces of the counter pressure roller 18 and the sealing roller 20 are at this process at essentially the same transport speed as that sealing good 10 moves. This will make the two slide Thread clip legs 14 and 16 avoided on the sealing element, so that a high Contact pressure can be applied without the thread clip legs being torn off become. After passing the gap between the sealing roller 20 and the Counter-pressure roller 18 is the thread clamp, as shown in FIG. 12a, with its legs 14a and 16a firmly connected to the folded sheets.

In Figur 2 ist schematisch eine weitere Ausführungsform der Erfindung gezeigt. Falzbogen 10 werden entlang der Transportrichtung A bewegt. Die Bewegung der Falzbogen in der Transportrichtung A wird dabei zum einen durch die Gegendruckrolle 18 unterstützt, die sich in Richtung B dreht. Zum anderen liegen die Falzbogen auf der Oberfläche eines Siegelbandes 26 auf, das sich in Richtung D bewegt und dabei eine Geschwindigkeit aufweist, die an der Berührungsfläche mit den Falzbogen 10 im wesentlichen mit der Geschwindigkeit der Falzbogen 10 gleich ist. Die Gegendruckrolle 18 weist ein Gegendruckelement 22 auf, und ist so angeordnet, daß zwischen dem Siegelband 26 und der Gegendruckrolle 18 ein Spalt entsteht, durch den die Falzbogen 10 mit ihren zuvor eingebrachten Fadenklammern 12 bewegt werden. Nach dem Einbringen der Fadenklammer 12 sind die beiden Fadenklammerschenkel 14 und 16, entsprechend der Figur 1 senkrecht nach unten gerichtet. Sobald die beiden Fadenklammerschenkel 14 und 16 jedoch zwischen den Spalt einlaufen, der durch das Siegelband 26 und die ihm zugewandte Oberfläche der Falzbogen 10 gebildet wird, werden die beiden Fadenklammerschenkel umgelegt. Mit Hilfe eines nah an der Oberfläche des Siegelbandes 26 und den Falzbogen zugewandten Heizelementes 28 wird beim Durchlauf der Fadenklammer jede der beiden Fadenklammerschenkel erhitzt, so daß der in der Fadenklammer vorhandene thermoplastische Anteil geschmolzen und der Siegelfaden danach eine feste Verbindung mit den Falzbogen 10 eingehen kann. Nach Passieren des Bereiches des Heizelementes 28 sind die beiden Fadenklammerschenkel 14a und 16a fest mit den Falzbogen 10 verbunden. Es ist möglich, diese Verbindung noch durch mindestens eine unter dem Transportband gegenüber der Gegendruckrolle 18 angeordnete Druckrolle 30, zu verbessern.A further embodiment of the invention is shown schematically in FIG. Folded sheets 10 are moved along the transport direction A. The movement of the folding sheets in the transport direction A is supported on the one hand by the counter pressure roller 18, which turns in direction B. On the other hand, the folded sheets lie on the surface of one Sealing tape 26, which moves in the direction D and thereby a speed has, which on the contact surface with the folded sheet 10 substantially with the The speed of the folded sheet 10 is the same. The counter pressure roller 18 has a Counter-pressure element 22, and is arranged so that between the sealing tape 26 and the counter-pressure roller 18 creates a gap through which the folded sheets 10 with their previously introduced thread clips 12 are moved. After introducing the Thread clip 12 are the two thread clip legs 14 and 16, corresponding to the Figure 1 directed vertically downwards. As soon as the two thread clip legs 14 and 16, however, run in between the gap through the sealing tape 26 and it facing surface of the folded sheet 10 is formed, the two Thread clip legs folded. With the help of a close to the surface of the Sealing tape 26 and the heating element 28 facing the folded sheet is during the passage the thread clip heated each of the two thread clip legs, so that the in the Thread clamp melted existing thermoplastic portion and the sealing thread then a firm connection with the folded sheet 10 can enter. After passing the Area of the heating element 28, the two thread clip legs 14a and 16a are fixed connected to the folded sheet 10. It is possible to make this connection through at least one arranged under the conveyor belt opposite the counter pressure roller 18 Pressure roller 30 to improve.

In einer weiteren Ausführungsform, die in Figur 3 gezeigt ist, weist das Siegelelement einen in Transportrichtung A bewegbaren Schlitten auf, der ein Heizelement 28 beinhaltet. Der Siegelschlitten 32 ist in der Lage, eine Bewegungskurve 38 auszuführen. Diese kann beispielsweise unter anderem durch eine Verbindung des Siegelschlittens 32 mit einem Stab 34 an einer Exzenterstelle 40 eines rotierenden Elementes 36, beispielsweise einer Scheibe, erzeugt werden. Verwendbar ist hier jedoch auch jede andere Vorichtung, die den Siegelschlitten entlang der gewünschten Siegelbahn bewegt, wie z. B. ein Linearmotor. Bei der Bewegung des Siegelschlittens 32 wird darauf geachtet, daß er in dem Bewegungskurvenabschnitt 38d im wesentlichen mit der Geschwindigkeit bewegt wird, die der Geschwindigkeit der Falzbogen 10 in Transportrichtung A entspricht. Durch die vorgegebene Bewegungskurve 38 ist festgelegt, daß der Siegelschlitten sich zunächst im Bewegungskurvenabschnitt 38 b entgegen der Transportrichtung A bewegt, wobei der Siegelschlitten keinen Kontakt zu den Falzbogen 10 aufweist. Sobald der Siegelschlitten die Bewegung in Richtung des Bewegungskurvenabschnittes 38c aufnimmt, wird der Abstand zwischen dem Siegelschlitten und den Falzbogen 10 vermindert. Dabei muß darauf geachtet werden, daß der Siegelschlitten 32 im Bereich einer Fadenklammer 12 so an die Falzbogen 10 angenähert wird, daß die beiden Fadenklammerschenkel 14 und 16 entgegen der Transportrichtung A umgelegt und anschließend mit der gleichzeitigen Bewegung des Siegelschlittens 32 in dieser Position fixiert, erhitzt und entsprechend mit den Falzbogen 10 verbunden werden.In a further embodiment, which is shown in FIG. 3, the sealing element has one Carriage movable in transport direction A, which includes a heating element 28. The Sealing carriage 32 is able to execute a movement curve 38. This can for example by connecting the sealing slide 32 to a rod 34 on one Eccentric point 40 of a rotating element 36, for example a disk, is generated become. However, any other device, the sealing slide, can also be used here moved along the desired sealing path, such as. B. a linear motor. When moving of the sealing carriage 32 is ensured that it is in the movement curve section 38d is moved essentially at the speed which is the speed of the Folded sheet 10 corresponds in the transport direction A. By the given Movement curve 38 is determined that the sealing slide is first in the Movement curve section 38 b moves against the transport direction A, the Sealing slide has no contact with the folded sheets 10. As soon as the sealing slide the movement in the direction of the movement curve portion 38c, the Distance between the sealing slide and the folded sheet 10 is reduced. It must care should be taken to ensure that the sealing slide 32 in the area of a thread clip 12 is approximated to the folded sheet 10 that the two thread clip legs 14 and 16th folded against the direction of transport A and then with the simultaneous Movement of the sealing carriage 32 fixed in this position, heated and accordingly the folded sheet 10 are connected.

In Figur 4 ist eine Ausführungsform der erfindungsgemäßen Vorrichtung schematisch im Zusammenspiel mit einer vorgelagerten Fadenstation 42 einer Fadensiegelmaschine dargestellt, wobei vorteilhafterweise jede der bisher beschriebenen Vorrichtungen nach Figur 1, 2 und 3 als Siegelstation 44 eingesetzt werden kann. Wie der Figur 4 zu entnehmen ist, läßt sich bei der Verwendung einer Siegelstation 44, die eine bewegliche Siegeleinrichtung aufweist, die Fadenstation 42, die zum Einbringen des Fadens in das zu siegelnde Gut 10 dient, vollständig von der Siegelstation 44 trennen. Damit läßt sich ein deutlich flexiblerer Aufbau realisieren, der zu einer verbesserten Anpassung der Fadensiegelmaschine an die jeweiligen Bedürfnisse führt.An embodiment of the device according to the invention is shown schematically in FIG Interaction with an upstream thread station 42 of a thread sealing machine shown, advantageously each of the devices described so far Figures 1, 2 and 3 can be used as a sealing station 44. As in Figure 4 can be seen when using a sealing station 44, which is a movable Sealing device, the thread station 42, which is used to insert the thread into the Good 10 to be sealed, completely separate from the sealing station 44. This makes it clear Realize more flexible structure, which leads to an improved adaptation of the Thread sealing machine leads to the respective needs.

Wenn nun die Fadenstation 42 von der Siegelstation 44 getrennt ist, hat es sich als vorteilhaft erwiesen, vor der Siegelstation 44 ein Umlegelement 56 vorzusehen. Dieses Umlegelement, das von dem Transportweg 46 beabstandet angebracht ist, wird dabei unterhalb des Transportweges 46 so vorgesehen, daß eine Ausrichtung der Fadenklammerschenkel in die gewünschte Richtung erzielt werden kann. Da das Umlegelement 56 auf die Fadenklammerschenkel keinen Druck ausübt, werden diese schonend umgelegt und somit bereits in der richtigen Orientierung der Siegelstation 44 zugeführt. Bevorzugt wird das Umlegelement 56 so positioniert, daß es den Übergabebereich zwischen der Fadenstation 42 und der Siegelstation 44 überbrückt. Die Falzbogen bewegen sich demnach von der Fadenstation 42, in der ein Faden eingebracht wird, über das Umlegelement 56, in dem die Fadenschenkel ausgerichtet werden, in die Siegelstation 44, in der die Fadenschenkel fest mit dem zu siegelnden Gut verbunden werden.If the thread station 42 is now separated from the sealing station 44, it has proven to be proved to be advantageous to provide a folding element 56 in front of the sealing station 44. This Folding element, which is attached at a distance from the transport path 46, is thereby provided below the transport path 46 so that an alignment of the Thread clip legs in the desired direction can be achieved. Since that Folding element 56 does not exert any pressure on the thread clip legs, these become gently folded and thus already in the correct orientation of the sealing station 44 fed. Preferably, the switching element 56 is positioned so that it Bridged transfer area between the thread station 42 and the sealing station 44. The Folded sheets accordingly move from the thread station 42, in which a thread is introduced is, via the folding element 56, in which the thread legs are aligned, in the Sealing station 44, in which the thread legs are firmly connected to the material to be sealed.

Mit Hilfe der Fadenstation 42 ist es möglich, die speziell verzwirnten und mit einem schmelzbaren Anteil versehenen Fadenstücke in die Falzlinie der Falzbogen einzubringen. Hierzu wird üblicherweise in der Fadenstation 42 ein Nadeleinstechgetriebe 48 eingesetzt, das in Kooperation mit einer Fadenplattenkette 50, einer Förderkette 52 und einer Einstechkette 54 das Einbringen des Siegelfadens in die Falzbogen ermöglicht.With the help of the thread station 42, it is possible to twist the specially and with one meltable portion provided thread pieces in the fold line of the folded sheet contribute. This is usually done in the thread station 42 Needle penetration gear 48 used, which in cooperation with a thread plate chain 50, a conveyor chain 52 and an insertion chain 54 the introduction of the sealing thread into the Folded sheet enables.

Die zuvor in den Figuren 1, 2 und 3 beschriebenen Heizelemente können als Elektroninduktions- oder Strahlungsheizungen ausgeführt sein. Außerdem ist es möglich, die Gegendruckelemente als Gegendruckrollen, bänder oder schlitten auszuführen, wobei sich die Gegendruckelemente am Berührungspunkt mit den Falzbogen im wesentlichen mit der gleichen Geschwindigkeit bewegen wie die Falzbogen selbst. The heating elements previously described in Figures 1, 2 and 3 can be used as Electron induction or radiant heaters. It is also possible perform the counter pressure elements as counter pressure rollers, belts or slides, whereby the counter pressure elements at the point of contact with the folded sheet essentially move at the same speed as the folded sheets themselves.

Bezugszeichenreference numeral

1010
Falzbogensignatures
1212
Fadenklammerthread clamp
1414
erster Fadenklammerschenkelfirst thread clip leg
1616
zweiter Fadenklammerschenkelsecond thread clip leg
1818
GegendruckrolleCounter-pressure roller
2020
Siegelrollesealing roller
2222
AndruckelememtAndruckelememt
2424
Heizelementheating element
2626
Siegelbandsealing tape
2828
Heizelementheating element
3030
Druckrollepressure roller
3232
Siegelschlittenseal slide
3434
StabRod
3636
Antriebselementdriving element
3838
Bewegungskurvemotion curve
38a38a
BewegungskurvenabschnittMotion curve section
38b38b
BewegungskurvenabschnittMotion curve section
38c38c
BewegungskurvenabschnittMotion curve section
38d38d
BewegungskurvenabschnittMotion curve section
4040
ExzenterstelleExzenterstelle
4242
Fadenstationthread station
4444
Siegelstationsealing station
4646
Förderbahnconveyor track
4848
NadeleinstechgetriebeNadeleinstechgetriebe
5050
FadenplattenketteThread plate chain
5252
Förderketteconveyor chain
5454
EinstechketteEinstechkette
5656
Umlegelement Umlegelement
AA
Transportrichtung des zu siegelnden GutesDirection of transport of the goods to be sealed
BB
Drehrichtung der GegendruckrolleDirection of rotation of the counter pressure roller
CC
Drehrichtung der SiegelrolleDirection of rotation of the sealing roller
DD
Bewegungsrichtung des TransportbandesDirection of movement of the conveyor belt

Claims (16)

  1. A device for sealing stitching threads (12) on material to be sealed (10) with a heatable sealing element (20, 26, 32) having a surface which touches the material to be sealed (10) during the sealing operation at a contact surface,
    characterized in that the heatable sealing element (20, 26, 32) is designed in such a manner that, during the sealing operation, the contact surface can be moved essentially at the same speed as the material to be sealed (10).
  2. The device according to claim 1,
    characterized in that the heatable sealing element is a rotating sealing roller (20).
  3. The device according to claim 1,
    characterized in that the heatable sealing element is a continuous sealing belt (26).
  4. The device according to claim 1,
    characterized in that the heatable sealing element includes a sealing slide (32) and furthermore a device for linearly moving the sealing slide (32) in a conveying direction of the folded sheet (10) as well as a device (34 and 36) for moving the sealing slide away from the material to be sealed (10).
  5. The device according to one of claims 1 to 4,
    characterized in that the sealing element has a heating element (24, 28).
  6. The device according to one of claims 1 to 5,
    characterized in that the heating element (24, 28) is an induction heater, a revolving heating cartridge and a radiant heat source.
  7. The device according to one of claims 1 to 6,
    characterized in that a counter-pressure element (18, 30) is provided opposite of the heatable sealing element (20, 26, 32).
  8. The device according to claim 7,
    characterized in that the counter-pressure element (18, 30) is embodied as a counter-pressure roller, counter-pressure belt, or counter-pressure slide.
  9. The device according to claims 7 or 8,
    characterized in that the counter-pressure element (18, 30) is embodied such that surface touching the material to be sealed (10) of the counter-pressure element moves essentially at the same speed as the material to be sealed (10).
  10. A method for hot-sealing material to be stitched, in particular made of paper, cardboard or the like, whereby hot-sealable thread clamps are introduced into the material to be stitched (10) along a path in the direction (46) of a hot-sealing element,
    characterized in that the material to be stitched (10) and the hot-sealable thread clamps (12) into contact with a heatable sealing element (20, 26, 32), whereby the surface of the heatable sealing element (20, 26, 32) which is in contact with the material to be stitched (10) and with the thread clamps (12) moves essentially at the same speed as the material to be stitched (10).
  11. The method according to claim 10,
    characterized in that the sealing element is embodied as a heatable sealing roller (20) which rolls off the material to be stitched.
  12. The method according to claim 10,
    characterized in that the sealing element is embodied as a rotary sealing roller (20).
  13. The method according to claim 10,
    characterized in that the sealing element is embodied as a movable slide (32) which is moved in such a manner that it is in contact with the material to be stitched (10) in a subsection of the conveying path of the material to be stitched (10) and in that it is subsequently removed from the material to be stitched (10) and, after its removal, is moved in a direction opposite to the conveying direction of the material to be stitched.
  14. The method according to one of claims 10 to 13,
    characterized in that a counter-pressure element (18, 30) is provided opposite the heatable sealing element (20, 26, 32), whereby the counter-pressure element moves essentially at the same speed as the material to be stitched (10) and that the material to be stitched moves between the counter-pressure element and the sealing element.
  15. The method according to claim 14,
    characterized in that the counter-pressure element is embodied as a counter-pressure roller, a counter-pressure belt, or a movable counter-pressure slide.
  16. A thread-sealing machine,
    characterized in that the thread-sealing machine has a device according to one of claims 1 to 9.
EP00125258A 1999-12-15 2000-11-24 Device for sealing binding thread Expired - Lifetime EP1108561B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19960445 1999-12-15
DE19960445A DE19960445A1 (en) 1999-12-15 1999-12-15 Device for sealing stitching threads

Publications (3)

Publication Number Publication Date
EP1108561A2 EP1108561A2 (en) 2001-06-20
EP1108561A3 EP1108561A3 (en) 2002-02-27
EP1108561B1 true EP1108561B1 (en) 2004-05-06

Family

ID=7932729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00125258A Expired - Lifetime EP1108561B1 (en) 1999-12-15 2000-11-24 Device for sealing binding thread

Country Status (6)

Country Link
US (1) US20010011572A1 (en)
EP (1) EP1108561B1 (en)
AT (1) ATE265942T1 (en)
DE (2) DE19960445A1 (en)
ES (1) ES2220324T3 (en)
PT (1) PT1108561E (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD95830A1 (en) * 1971-03-10 1973-02-20
DD258968B1 (en) * 1987-03-25 1993-01-28 Brehmer Buchbindereimaschinen RAIL FOR SEALING SHEET FAEDES
DE4329680C1 (en) * 1993-09-02 1994-08-25 Binder & Co Masch Oppenweiler Method for setting up and controlling a sheet-processing machine
DE4401153C1 (en) * 1994-01-17 1995-05-11 Binder & Co Masch Oppenweiler Thread-sealing machine
DE19610814C1 (en) * 1996-03-19 1997-06-05 Binder & Co Masch Oppenweiler Thread sealing machine with sheet conveyors, thread clamps, bending appliance

Also Published As

Publication number Publication date
ES2220324T3 (en) 2004-12-16
US20010011572A1 (en) 2001-08-09
EP1108561A3 (en) 2002-02-27
ATE265942T1 (en) 2004-05-15
EP1108561A2 (en) 2001-06-20
DE19960445A1 (en) 2001-06-21
PT1108561E (en) 2004-09-30
DE50006314D1 (en) 2004-06-09

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