EP0663302B1 - Thread sealing machine - Google Patents

Thread sealing machine Download PDF

Info

Publication number
EP0663302B1
EP0663302B1 EP19940111900 EP94111900A EP0663302B1 EP 0663302 B1 EP0663302 B1 EP 0663302B1 EP 19940111900 EP19940111900 EP 19940111900 EP 94111900 A EP94111900 A EP 94111900A EP 0663302 B1 EP0663302 B1 EP 0663302B1
Authority
EP
European Patent Office
Prior art keywords
thread
conveyor
plate
folded sheet
sealing machine
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
EP19940111900
Other languages
German (de)
French (fr)
Other versions
EP0663302A1 (en
Inventor
Joachim Streubel
Claus-Dieter Redmer
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.)
MBO Postpress Solutions GmbH
Original Assignee
Maschinenbau Oppenweiler Binder GmbH and Co KG
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 Maschinenbau Oppenweiler Binder GmbH and Co KG filed Critical Maschinenbau Oppenweiler Binder GmbH and Co KG
Publication of EP0663302A1 publication Critical patent/EP0663302A1/en
Application granted granted Critical
Publication of EP0663302B1 publication Critical patent/EP0663302B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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 thread sealing machine with a driven, endlessly revolving, transporting elements for the folded sheet-carrying lower conveying element, with an endlessly revolving, plate-shaped conveying elements driven in synchronism with the lower conveying element in a predetermined division for holding the folded sheets on the lower conveying element, upper conveying element with Puncture openings provided in the plate-shaped transport elements of the upper conveying member, with a puncture device controlled synchronously with the upper conveying member and assigned to the puncture openings for piercing thread pieces fed from the upper conveying member and cut to length according to a thread clip to be formed into the folded sheets to form the thread clips and with one of the puncturing devices downstream of the folded sheets in the transport direction and arranged below the folded sheets, biased against the folded sheets to seal the thread clip n.
  • the upper conveyor element is a thread plate chain, which is used to form and carry the thread pieces according to the thread clip length until the legs of the thread clip to be formed are inserted into the folded sheet and for transporting the folded sheets through the functional points, piercing and sealing the legs of the thread clips until they are handed over to a folding device.
  • the lower conveyor organ is a conveyor chain that only has a transport function for the folded sheets.
  • the aligned folding sheets are transported between the upper thread plate chain and the lower conveyor chain to a puncturing device, at which the supplied, cut pieces of thread are inserted into the folding sheets to form the back of the clip and the clip legs.
  • the clamp legs are sealed by the heating rail, the heating strip of which presses against the clamp legs and the paper of the folded sheet with the required contact pressure.
  • the shape of the plate-shaped transport elements of the upper thread plate chain which is functionally related to the formation of the clamp, leads to an insufficient pressure distribution on the thread clamp in the area of the sealing.
  • the reason for this is the doubling of the thread in the front staple leg, which lies under the back of the staple, and the fact that the pressure area of the plate-shaped transport element is too short with respect to the rear staple leg.
  • the plate-shaped transport element, which is intended to press on the two clamp legs, cannot compensate for the differences in thickness due to its overlap with a flat surface, which leads to inadequate sealing, especially of the rear clamp leg.
  • the object on which the invention is based is therefore to design the thread sealing machine of the type mentioned at the outset in such a way that proper formation and sealing of the thread clips is ensured.
  • the transport elements of the further upper conveyor element can be plate-shaped transport elements.
  • the functional area relating to the staple formation for the upper first conveying member ends after the thread staple is inserted.
  • the upper conveyor is compared to the design of the thread sealing machine according to the prior art Technology limited to this functional process.
  • the first upper conveyor element in the form of the thread plate chain is steered out of the plane of the sheet so that it no longer reaches the heating rail. This means that contamination with heat sealing material such as polypropylene can no longer occur.
  • the further transport of the folded sheets is now taken over by the subsequent further upper conveying element, which is driven synchronously with the first conveying element via an intermediate gear.
  • the plate-shaped transport elements of the further upper conveyor element which is assigned to the sealing area, are advantageously attached with half the division of the plate-shaped transport elements of the first upper conveyor element. This means that, based on the length, the number of plate-shaped transport elements of the upper conveying element assigned to the sealing area is twice as large as that of the plate-shaped transport elements of the first upper conveying element, which is assigned to the functional area bracketing.
  • the plate-shaped transport elements of the further upper conveying member assigned to the sealing area no longer require any functional features such as are required for the formation of clips, for example the puncture openings. Due to the reduced dimension of the plate-shaped transport elements due to the halving, a more flexible pressure distribution is achieved with thickness fluctuations caused by the thread.
  • each bracket leg can be one Thread clips can be individually pressed on by a plate-shaped transport element.
  • Different staple thicknesses namely double the thread thickness for the front staple leg and single thread thickness for the rear staple leg, no longer have a disadvantageous effect when sealing.
  • At least one machine-mounted guide roller is provided opposite the heating rail on the top of the folded sheet.
  • the guide rollers can rest on the upper sides of the plate-shaped transport elements parallel to the folded sheet contact surfaces.
  • a fixed upper limit is achieved by the guide rollers arranged above the plate-shaped transport elements in the region of the longitudinal extension of the heating bar of the heating rail, that is to say along the sealing line. Changes in the position of the plate-shaped transport elements can be compensated for by manufacturing tolerances. Furthermore, the counterpressure behavior of the further upper conveyor element is improved, which favors the sealing effect.
  • Another embodiment is that one or more guide rollers are arranged directly on the folded sheet above the heating rail.
  • the further upper conveying member assigned to the heating rail can be designed like the lower conveying member.
  • the guide rollers which are mounted on a machine-side bar or on a machine-side block, are then used for the pressure absorption in the area of the heating rail.
  • the folded sheet is gripped between the upper and the lower conveyor and transported over the heating rail, the The strip of the heating rail presses the folded sheet against the guide rollers and thereby seals the thread clips. Due to the line contact of the rolls, even with fluctuations in thickness over the entire length of the thread clip, good sealing of the thread on the folded sheet is guaranteed at every point.
  • the upper conveying member is thus divided into a first upper conveying member associated with the thread clip formation and into a further conveying member associated with the heating rail, whereby the functional reliability of the chamfering clip formation and the sealing of the thread is improved.
  • the plate-shaped transport elements of the first conveying element can no longer be heated by the heating rail or contaminated or glued by sealing medium, thereby eliminating a major cause of missing and loose thread clips.
  • the pressing of the thread clip and thereby the sealing of the clip legs is evened out. Overall, an improved thread sealing quality is achieved with the thread sealing machine according to the invention and thus the binding quality of the end product is increased.
  • the thread sealing machine shown in FIG. 1 has a lower conveying element 21 in the form of a conveyor chain which carries transport elements 22 and is endlessly arranged around sprockets 23 and 24 which are spaced in the longitudinal direction of the machine, one of the sprockets 23 or 24 being driven. Folded sheets, not shown in FIG. 1, are applied to the lower conveying element 21 in the direction of arrow 41.
  • a heating rail 25 with a heating strip 26, which is biased upwards by springs 27, is assigned to the lower conveying member 21 in its section on the fold sheet outlet side.
  • a first upper conveyor element 11 in the form of a thread plate chain with plate-shaped transport elements 12 is provided on the folding sheet inlet side, which rotates endlessly via chain wheels 16, 17 and 18, the first upper conveyor element 11 being driven synchronously with the lower conveyor element 21 via the chain wheel 18 .
  • a puncture device 13 with needles 14 is provided between the sprocket 18 on the side of the folding sheet infeed and the sprocket 17 arranged at a distance, to which appropriately arranged and dimensioned puncture openings 15 in each plate-shaped transport element 12 are assigned.
  • the puncturing device 13 interacts synchronously with the lower conveying member 21 and the upper conveying member 11 via a gear, not shown.
  • the upper run of the lower conveyor 21 and the lower run of the upper conveyor 11 take between them aligned and fed at a predetermined distance folding sheets and transport them to the puncture device 13.
  • the upper conveyor 12 transports from a thread cutting station, not shown, in the required length cut pieces of thread to the puncture device 13, where with the help of the needles 14 and the puncture openings 15 the punctures in the conveyed Folded sheets are executed and a thread clip with a thread back and with thread legs is created from the thread piece.
  • the upper first conveyor element 11 Before the upper first conveyor element 11 reaches the heating rail 26, it is deflected upward out of the movement path around the chain wheel 17 and the driven chain wheel 16.
  • a further upper conveyor 31 is provided in the area of the heating rail 25, which has transport elements 32 which, in cooperation with the transport elements 22 of the lower conveyor 21, capture the folded sheet fed by the puncturing device 13 and transport it along a sealing line which starts from the Heating strip 26 of the heating rail 25 is formed.
  • the further upper conveying member 31, which can also be referred to as a sealing chain, is endlessly guided around chain wheels 33, 34 and 35, the chain wheel 34 being driven synchronously via a drive chain 36 from the chain wheel 16.
  • Guide rollers 37 are mounted on a roller carrier 38 in a machine-fixed manner above the heating strip 26.
  • the further upper conveying element 31 which rotates endlessly in the area of the heating strip 26, carries plate-shaped transport elements 32 which cooperate with the transport elements 22 and the lower conveying element 21 transport the folded sheets 40, the heating strip 26 extending in the area of the thread clips formed by the piercing device 13 and the guide rollers 37 being in engagement with the upper side of the plate-shaped transport elements 32 above the heating strip 26 and thus the sealing line.
  • the transport elements 32 of the further upper conveying member 31 are designed in the same way as those of the lower conveying member 21.
  • the transport elements 22 and 32 grip the folded sheets 40 laterally from the heating rail 25, the heating strip 26 of which is pressed against the folded sheet 40 by the springs 27 via the heating rail 25.
  • the counterpressure is exerted on the upper side by the guide rollers 37 held on the roller carrier 38, which are in direct contact with the upper side of the folded sheet 40.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Package Closures (AREA)

Description

Die Erfindung betrifft eine Fadensiegelmaschine mit einem angetriebenen, endlos umlaufenden, Transportelemente für aufgelegte Falzbogen tragenden unteren Förderorgan, mit einem synchron zum unteren Förderorgan angetriebenen, endlos umlaufenden, plattenförmige Transportelemente in vorgegebener Teilung zum Halten der Falzbogen auf dem unteren Förderorgan tragenden, oberen Förderorgan, mit in den plattenförmigen Transportelementen des oberen Förderorgans vorgesehenen Einstichöffnungen, mit einer synchron zu dem oberen Förderorgan gesteuerten, den Einstichöffnungen zugeordneten Einsticheinrichtung zum Einstechen von von dem oberen Förderorgan zugeführten, entsprechend einer auszubildenden Fadenklammer abgelängten Fadenstükken in die Falzbogen zur Bildung der Fadenklammern und mit einer der Einsticheinrichtung in Transportrichtung der Falzbogen nachgeordneten und unterhalb der Falzbogen angeordneten, gegen die Falzbogen vorgespannten Heizschiene zum Ansiegeln der Fadenklammern.The invention relates to a thread sealing machine with a driven, endlessly revolving, transporting elements for the folded sheet-carrying lower conveying element, with an endlessly revolving, plate-shaped conveying elements driven in synchronism with the lower conveying element in a predetermined division for holding the folded sheets on the lower conveying element, upper conveying element with Puncture openings provided in the plate-shaped transport elements of the upper conveying member, with a puncture device controlled synchronously with the upper conveying member and assigned to the puncture openings for piercing thread pieces fed from the upper conveying member and cut to length according to a thread clip to be formed into the folded sheets to form the thread clips and with one of the puncturing devices downstream of the folded sheets in the transport direction and arranged below the folded sheets, biased against the folded sheets to seal the thread clip n.

Bei einer solchen aus der CH-PS 591 960 bekannten Fadensiegelmaschine ist das obere Förderorgan eine Fadenplattenkette, die zur Bildung und Mitnahme der Fadenstücke entsprechend der Fadenklammerlänge bis zum Einstechen der Schenkel der auszubildenden Fadenklammer in den Falzbogen und zum Transport der Falzbogen durch die Funktionsstellen Einstechen und Ansiegeln der Schenkel der Fadenklammern bis zur Übergabe an eine Falzeinrichtung dient. Das untere Föderorgan ist eine Föderkette, die ausschließlich Transportfunktion für die Falzbogen hat.In such a thread sealing machine known from CH-PS 591 960, the upper conveyor element is a thread plate chain, which is used to form and carry the thread pieces according to the thread clip length until the legs of the thread clip to be formed are inserted into the folded sheet and for transporting the folded sheets through the functional points, piercing and sealing the legs of the thread clips until they are handed over to a folding device. The lower conveyor organ is a conveyor chain that only has a transport function for the folded sheets.

Die ausgerichteten Falzbogen werden zwischen der oberen Fadenplattenkette und der unteren Förderkette zu einer Einsticheinrichtung transportiert, an der die zugeführten abgelängten Fadenstücke in die Falzbogen unter Bildung des Klammerrückens und der Klammerschenkel eingestochen werden. Das Ansiegeln der Klammerschenkel erfolgt durch die Heizschiene, deren Heizleiste mit dem erforderlichen Kontaktdruck gegen die Klammerschenkel und das Papier des Falzbogens drückt.The aligned folding sheets are transported between the upper thread plate chain and the lower conveyor chain to a puncturing device, at which the supplied, cut pieces of thread are inserted into the folding sheets to form the back of the clip and the clip legs. The clamp legs are sealed by the heating rail, the heating strip of which presses against the clamp legs and the paper of the folded sheet with the required contact pressure.

Infolge von Abstandslücken zwischen den Falzbogen und aufgrund sonstiger Produktstromunterbrechungen kann es zu einem direkten Kontakt zwischen der Heizschiene und den plattenförmigen Transportelementen der oberen Fadenplattenkette kommen, wodurch auf der Heizschiene befindliches Heißsiegelmaterial, wie Polypropylen, auf die plattenförmigen Transportelemente der oberen Fadenplattenkette übertragen werden kann. Dies kann zu Unregelmäßigkeiten an den Plattenoberflächen führen, die den Falzbogentransport beeinflussen und die Fadenklammerbildung beeinträchtigen, so daß Klammern fehlen oder lose Klammern die Folge sind. Dadurch wird die Bindefestigkeit im Buchblock und somit die Bindequalität insgesamt verschlechtert.As a result of spacing gaps between the folded sheets and due to other product flow interruptions, there can be direct contact between the heating rail and the plate-shaped transport elements of the upper thread plate chain, as a result of which heat sealing material, such as polypropylene, located on the heating rail can be transferred to the plate-shaped transport elements of the upper thread plate chain. This can lead to irregularities on the plate surfaces, which affect the sheet transport and impair the formation of thread clips, so that clips are missing or loose clips are the result. As a result, the binding strength in the book block and thus the overall binding quality deteriorates.

Die hinsichtlich der Klammerbildung funktionsbedingte Form der plattenförmigen Transportelemente der oberen Fadenplattenkette führt im Bereich des Ansiegelns zu einer ungenügenden Druckverteilung auf die Fadenklammer.The shape of the plate-shaped transport elements of the upper thread plate chain, which is functionally related to the formation of the clamp, leads to an insufficient pressure distribution on the thread clamp in the area of the sealing.

Ursache dafür ist die Fadenverdoppelung beim vorderen Klammerschenkel, der unter dem Klammerrücken liegt, sowie die Tatsache, daß die Druckfläche des plattenförmigen Transportelements bezüglich des hinteren Klammerschenkels zu kurz ist. Das plattenförmige Transportelement, das beide Klammerschenkel andrücken soll, kann aufgrund seiner Überdeckung mit einer Planfläche die Dickenunterschiede nicht ausgleichen, was zu eine unzureichenden Ansiegeln, vor allem des hinteren Klammerschenkels führt.The reason for this is the doubling of the thread in the front staple leg, which lies under the back of the staple, and the fact that the pressure area of the plate-shaped transport element is too short with respect to the rear staple leg. The plate-shaped transport element, which is intended to press on the two clamp legs, cannot compensate for the differences in thickness due to its overlap with a flat surface, which leads to inadequate sealing, especially of the rear clamp leg.

Die der Erfindung zugrunde liegende Aufgabe besteht deshalb darin, die Fadensiegelmaschine der eingangs genannten Art so auszugestalten, daß ein einwandfreies Bilden und Ansiegeln der Fadenklammern gewährleistet ist.The object on which the invention is based is therefore to design the thread sealing machine of the type mentioned at the outset in such a way that proper formation and sealing of the thread clips is ensured.

Diese Aufgabe wird bei der Fadensiegelmaschine der eingangs genannten Art dadurch gelöst, daß im Bereich der Längserstreckung der Heizschiene ein dem die plattenförmigen Transportelemente mit Einstichöffnungen tragenden ersten oberen Förderorgan in Transportrichtung der Falzbogen nachgeordnetes, synchron zu diesem ersten Förderorgan angetriebenes, endlos umlaufendes weiteres oberes Förderorgan vorgesehen ist und daß das weitere obere Förderorgan auf den Falzbogen aufliegende Transportelemente trägt.This object is achieved in the thread sealing machine of the type mentioned at the outset in that in the region of the longitudinal extension of the heating rail there is provided an endlessly rotating further upper conveyor element which is arranged downstream of the first upper conveyor element carrying the plate-shaped transport elements with puncture openings in the transport direction of the folded sheets and is driven synchronously with this first conveyor element is and that the further upper conveyor element carries transport elements resting on the folded sheet.

Die Transportelemente des weiteren oberen Förderorgans können plattenförmige Transportelemente sein.The transport elements of the further upper conveyor element can be plate-shaped transport elements.

Bei der erfindungsgemäßen Fadensiegelmaschine endet der die Klammerbildung betreffende Funktionsbereich für das obere erste Förderorgan nach dem Einstechen der Fadenklammer. Das obere Förderorgan ist verglichen mit der Ausgestaltung der Fadensiegelmaschine nach dem Stand der Technik auf diesen Funktionsvorgang beschränkt. Unmittelbar nach dem Einstechen wird das erste obere Förderorgan in Form der Fadenplattenkette aus der Bogenebene gelenkt, so daß es nicht mehr über die Heizschiene gelangt. Dadurch kann eine Verschmutzung mit Heißsiegelmaterial, wie Polypropylen, nicht mehr eintreten. Der weitere Falzbogentransport wird nun von dem anschließenden weiteren oberen Förderorgan übernommen, das über ein Zwischengetriebe synchron zum ersten Förderorgan angetrieben ist.In the thread sealing machine according to the invention, the functional area relating to the staple formation for the upper first conveying member ends after the thread staple is inserted. The upper conveyor is compared to the design of the thread sealing machine according to the prior art Technology limited to this functional process. Immediately after the piercing, the first upper conveyor element in the form of the thread plate chain is steered out of the plane of the sheet so that it no longer reaches the heating rail. This means that contamination with heat sealing material such as polypropylene can no longer occur. The further transport of the folded sheets is now taken over by the subsequent further upper conveying element, which is driven synchronously with the first conveying element via an intermediate gear.

Die plattenförmigen Transportelemente des weiteren oberen Förderorgans, das dem Siegelbereich zugeordnet ist, sind vorteilhafterweise mit der halben Teilung der plattenförmigen Transportelemente des ersten oberen Förderorgans angebracht. Das heißt, daß bezogen auf die Länge die Anzahl der plattenförmigen Transportelemente des oberen, dem Siegelbereich zugeordneten Förderorgans doppelt so groß ist wie die der plattenförmigen Transportelemente des ersten oberen Förderorgans, welches dem Funktionsbereich Klammerbildung zugeordnet ist. Die plattenförmigen Transportelemente des dem Siegelbereich zugeordneten weiteren oberen Förderorgans benötigt keine Funktionsmerkmale mehr, wie sie für die Klammerbildung erforderlich sind, beispielsweise die Einstichöffnungen. Durch die aufgrund der halbierten Teilung verringerte Abmessung der plattenförmigen Transportelemente wird eine flexiblere Druckverteilung bei durch den Faden bedingten Dickenschwankungen erreicht.The plate-shaped transport elements of the further upper conveyor element, which is assigned to the sealing area, are advantageously attached with half the division of the plate-shaped transport elements of the first upper conveyor element. This means that, based on the length, the number of plate-shaped transport elements of the upper conveying element assigned to the sealing area is twice as large as that of the plate-shaped transport elements of the first upper conveying element, which is assigned to the functional area bracketing. The plate-shaped transport elements of the further upper conveying member assigned to the sealing area no longer require any functional features such as are required for the formation of clips, for example the puncture openings. Due to the reduced dimension of the plate-shaped transport elements due to the halving, a more flexible pressure distribution is achieved with thickness fluctuations caused by the thread.

Es ist jedoch auch möglich, daß die beiden oberen Förderorgane relativ zueinander verschiebbar sind, so daß bei gleicher Teilung der plattenförmigen Transportelemente eine Verschiebung der Teilung zueinander eingestellt werden kann. Dadurch kann jeder Klammerschenkel einer Fadenklammer individuell durch jeweils ein plattenförmiges Transportelement angedrückt werden. Unterschiedliche Klammerdicken, nämlich beim vorderen Klammerschenkel die doppelte Fadenstärke und beim hinteren Klammerschenkel die einfache Fadenstärke, wirken sich dadurch beim Ansiegeln nicht mehr nachteilig aus.However, it is also possible for the two upper conveying members to be displaceable relative to one another, so that a displacement of the division relative to one another can be set with the same division of the plate-shaped transport elements. This allows each bracket leg to be one Thread clips can be individually pressed on by a plate-shaped transport element. Different staple thicknesses, namely double the thread thickness for the front staple leg and single thread thickness for the rear staple leg, no longer have a disadvantageous effect when sealing.

Zweckmäßigerweise ist der Heizschiene falzbogenoberseitig gegenüberliegend wenigstens eine maschinenfest gelagerte Führungsrolle vorgesehen. An den zu den Falzbogenkontaktflächen parallelen Oberseiten der plattenförmigen Transportelemente können die Führungsrollen aufliegen. Durch die über den plattenförmigen Transportelementen im Bereich der Längserstreckung der Heizleiste der Heizschiene, also längs der Siegellinie, angeordneten Führungsrollen wird eine festgelegte Begrenzung nach oben erreicht. Dadurch können Lageveränderungen der plattenförmigen Transportelemente durch fertigungstechnische Toleranzen kompensiert werden. Ferner wird das Gegendruckverhalten des weiteren oberen Förderorgans verbessert, was den Ansiegelungseffekt begünstigt.Appropriately, at least one machine-mounted guide roller is provided opposite the heating rail on the top of the folded sheet. The guide rollers can rest on the upper sides of the plate-shaped transport elements parallel to the folded sheet contact surfaces. A fixed upper limit is achieved by the guide rollers arranged above the plate-shaped transport elements in the region of the longitudinal extension of the heating bar of the heating rail, that is to say along the sealing line. Changes in the position of the plate-shaped transport elements can be compensated for by manufacturing tolerances. Furthermore, the counterpressure behavior of the further upper conveyor element is improved, which favors the sealing effect.

Eine weitere Ausgestaltung besteht darin, daß eine oder mehrere Führungsrollen direkt am Falzbogen anliegend oberhalb der Heizschiene angeordnet sind.Another embodiment is that one or more guide rollers are arranged directly on the folded sheet above the heating rail.

Bei dieser Ausgestaltung kann das der Heizschiene zugeordnete weitere obere Förderorgan wie das untere Förderorgan ausgebildet sein. Für die Druckaufnahme im Bereich der Heizschiene dienen dann die Führungsrollen, die an einer maschinenseitigen Leiste oder an einem maschinenseitigen Block gelagert sind. Der Falzbogen wird dabei zwischen dem oberen und dem unteren Förderorgan gefaßt und über die Heizschiene transportiert, wobei die Leiste der Heizschiene den Falzbogen gegen die Führungsrollen drückt und dadurch das Ansiegeln der Fadenklammern bewirkt. Aufgrund der Linienberührung der Rollen ist auch bei Dickenschwankungen über der gesammten Fadenklammerlänge an jeder Stelle ein gutes Ansiegeln des Fadens am Falzbogen gewährleistet.In this embodiment, the further upper conveying member assigned to the heating rail can be designed like the lower conveying member. The guide rollers, which are mounted on a machine-side bar or on a machine-side block, are then used for the pressure absorption in the area of the heating rail. The folded sheet is gripped between the upper and the lower conveyor and transported over the heating rail, the The strip of the heating rail presses the folded sheet against the guide rollers and thereby seals the thread clips. Due to the line contact of the rolls, even with fluctuations in thickness over the entire length of the thread clip, good sealing of the thread on the folded sheet is guaranteed at every point.

Erfindungsgemäß wird somit das obere Förderorgan in ein erstes oberes, der Fadenklammerbildung zugeordnetes Förderorgan und in ein weiteres, der Heizschiene zugeordnetes Förderorgan aufgeteilt, wodurch die Funktionssicherheit der Fasenklammerbildung und des Ansiegelns des Fadens verbessert wird. Die plattenförmigen Transportelemente des ersten Förderorgans können dabei nicht mehr durch die Heizschiene aufgeheizt oder durch Siegelmedium verunreinigt oder verklebt werden, wodurch eine wesentliche Ursache für fehlende und lose Fadenklammern ausgeschlossen wird. Durch die Halbierung der Teilung der plattenförmigen Transportelemente im Siegelbereich wird das Andrücken der Fadenklammer und dadurch das Siegeln der Klammerschenkel vergleichmäßigt. Insgesamt wird mit der erfindungsgemäßen Fadensiegelmaschine eine verbesserte Fadensiegelqualität erreicht und damit die Bindequalität des Endprodukts gesteigert.According to the invention, the upper conveying member is thus divided into a first upper conveying member associated with the thread clip formation and into a further conveying member associated with the heating rail, whereby the functional reliability of the chamfering clip formation and the sealing of the thread is improved. The plate-shaped transport elements of the first conveying element can no longer be heated by the heating rail or contaminated or glued by sealing medium, thereby eliminating a major cause of missing and loose thread clips. By halving the division of the plate-shaped transport elements in the sealing area, the pressing of the thread clip and thereby the sealing of the clip legs is evened out. Overall, an improved thread sealing quality is achieved with the thread sealing machine according to the invention and thus the binding quality of the end product is increased.

Anhand von Zeichnungen werden Ausführungsbeispiele der Erfindung näher erläutert. Es zeigen:

Fig. 1
eine Fadensiegelmaschine schematisch in einer Seitenansicht,
Fig. 2
schematisch einen Querschnitt durch den Siegelbereich der Fadensiegelmaschine von Fig. 1 und
Fig. 3
einen Querschnitt durch einen modifizierten Siegelbereich der Fadensiegelmaschine.
Exemplary embodiments of the invention are explained in more detail with reference to drawings. Show it:
Fig. 1
a thread sealing machine schematically in a side view,
Fig. 2
schematically shows a cross section through the sealing area of the thread sealing machine of Fig. 1 and
Fig. 3
a cross section through a modified sealing area of the thread sealing machine.

Die in Fig. 1 gezeigte Fadensiegelmaschine hat ein unteres um in Längsrichtung der Maschine im Abstand angeordnete Kettenräder 23 und 24 endlos umlaufendes Förderorgan 21 in Form einer Förderkette, die Transportelemente 22 trägt, wobei eines der Kettenräder 23 oder 24 angetrieben ist. In Fig. 1 nicht gezeigte Falzbogen werden in Richtung des Pfeils 41 auf das untere Förderorgan 21 aufgebracht. Dem unteren Förderorgan 21 ist in seinem falzbogenauslaufseitigen Abschnitt eine Heizschiene 25 mit einer Heizleiste 26 zugeordnet, die nach oben durch Federn 27 vorgespannt ist.The thread sealing machine shown in FIG. 1 has a lower conveying element 21 in the form of a conveyor chain which carries transport elements 22 and is endlessly arranged around sprockets 23 and 24 which are spaced in the longitudinal direction of the machine, one of the sprockets 23 or 24 being driven. Folded sheets, not shown in FIG. 1, are applied to the lower conveying element 21 in the direction of arrow 41. A heating rail 25 with a heating strip 26, which is biased upwards by springs 27, is assigned to the lower conveying member 21 in its section on the fold sheet outlet side.

Oberhalb des unteren Förderorgans 21 ist falzbogeneinlaufseitig ein erstes oberes Förderorgan 11 in Form einer Fadenplattenkette mit plattenförmigen Transportelementen 12 vorgesehen, das über Kettenräder 16, 17 und 18 endlos umläuft, wobei über das Kettenrad 18 das erste obere Förderorgan 11 synchron zum unteren Förderorgan 21 angetrieben wird.Above the lower conveyor element 21, a first upper conveyor element 11 in the form of a thread plate chain with plate-shaped transport elements 12 is provided on the folding sheet inlet side, which rotates endlessly via chain wheels 16, 17 and 18, the first upper conveyor element 11 being driven synchronously with the lower conveyor element 21 via the chain wheel 18 .

Zwischen dem falzbogeneinlaufseitigen Kettenrad 18 und dem im Abstand nachgeordneten Kettenrad 17 ist eine Einsticheinrichtung 13 mit Nadeln 14 vorgesehen, denen entsprechend angeordnete und dimensionierte Einstichöffnungen 15 in jedem plattenförmigen Transportelement 12 zugeordnet sind. Die Einsticheinrichtung 13 wirkt über ein nicht gezeigtes Getriebe synchron mit dem unteren Förderorgan 21 und dem oberen Förderorgan 11 zusammen.A puncture device 13 with needles 14 is provided between the sprocket 18 on the side of the folding sheet infeed and the sprocket 17 arranged at a distance, to which appropriately arranged and dimensioned puncture openings 15 in each plate-shaped transport element 12 are assigned. The puncturing device 13 interacts synchronously with the lower conveying member 21 and the upper conveying member 11 via a gear, not shown.

Das obere Trum des unteren Förderorgans 21 und das untere Trum des oberen Förderorgans 11 nehmen zwischen sich ausgerichtete und im vorgegebenen Abstand zugeführte Falzbogen auf und transportieren sie zur Einsticheinrichtung 13. Das obere Förderorgan 12 transportiert von einer nicht gezeigten Fadenabschneidestation in der erforderlichen Länge abgeschnittene Fadenstücke zur Einsticheinrichtung 13, wo mit Hilfe der Nadeln 14 und der Einstichöffnungen 15 die Einstiche in dem geförderten Falzbogen ausgeführt werden und aus dem Fadenstück eine Fadenklammer mit einem Fadenrücken und mit Fadenschenkeln entsteht. Ehe das obere erste Förderorgan 11 die Heizschiene 26 erreicht, wird sie nach oben aus der Bewegungsbahn um das Kettenrad 17 und das angetriebene Kettenrad 16 abgelenkt.The upper run of the lower conveyor 21 and the lower run of the upper conveyor 11 take between them aligned and fed at a predetermined distance folding sheets and transport them to the puncture device 13. The upper conveyor 12 transports from a thread cutting station, not shown, in the required length cut pieces of thread to the puncture device 13, where with the help of the needles 14 and the puncture openings 15 the punctures in the conveyed Folded sheets are executed and a thread clip with a thread back and with thread legs is created from the thread piece. Before the upper first conveyor element 11 reaches the heating rail 26, it is deflected upward out of the movement path around the chain wheel 17 and the driven chain wheel 16.

Gemäß Fig. 1 ist im Bereich der Heizschiene 25 ein weiteres oberes Förderorgan 31 vorgesehen, das Transportelemente 32 aufweist, die im Zusammenwirken mit den Transportelementen 22 des unteren Förderorgans 21 den von der Einsticheinrichtung 13 zugeführten Falzbogen erfassen und längs einer Siegellinie transportieren, die von der Heizleiste 26 der Heizschiene 25 gebildet wird. Das weitere obere Förderorgan 31, das auch als Siegelkette bezeichnet werden kann, ist um Kettenräder 33, 34 und 35 endlos umlaufend geführt, wobei das Kettenrad 34 synchron über eine Antriebskette 36 vom Kettenrad 16 aus angetrieben ist.1, a further upper conveyor 31 is provided in the area of the heating rail 25, which has transport elements 32 which, in cooperation with the transport elements 22 of the lower conveyor 21, capture the folded sheet fed by the puncturing device 13 and transport it along a sealing line which starts from the Heating strip 26 of the heating rail 25 is formed. The further upper conveying member 31, which can also be referred to as a sealing chain, is endlessly guided around chain wheels 33, 34 and 35, the chain wheel 34 being driven synchronously via a drive chain 36 from the chain wheel 16.

An einem Rollenträger 38 sind dabei maschinenfest Führungsrollen 37 oberhalb der Heizleiste 26 gelagert.Guide rollers 37 are mounted on a roller carrier 38 in a machine-fixed manner above the heating strip 26.

Bei der in Fig. 2 gezeigten Ausführungsform trägt das weitere obere Förderorgan 31, welches im Bereich der Heizleiste 26 endlos umläuft, plattenförmige Transportelemente 32, die im Zusammenwirken mit den Transportelementen 22 und des unteren Förderorgans 21 die Falzbogen 40 transportieren, wobei sich die Heizleiste 26 im Bereich der von der Einstecheinrichtung 13 ausgebildeten Fadenklammern erstreckt und die Führungsrollen 37 in Eingriff mit der Oberseite der plattenförmigen Transportelemente 32 oberhalb der Heizleiste 26 und damit der Siegellinie stehen.In the embodiment shown in FIG. 2, the further upper conveying element 31, which rotates endlessly in the area of the heating strip 26, carries plate-shaped transport elements 32 which cooperate with the transport elements 22 and the lower conveying element 21 transport the folded sheets 40, the heating strip 26 extending in the area of the thread clips formed by the piercing device 13 and the guide rollers 37 being in engagement with the upper side of the plate-shaped transport elements 32 above the heating strip 26 and thus the sealing line.

Bei der Ausführungsvariante von Fig. 3 sind die Transportelemente 32 des weiteren oberen Förderorgans 31 ebenso wie die des unteren Förderorgans 21 ausgebildet. Die Transportelemente 22 und 32 fassen die Falzbogen 40 seitlich von der Heizschiene 25, deren Heizleiste 26 über die Heizschiene 25 durch die Federn 27 gegen den Falzbogen 40 gedrückt wird. Den Gegendruck üben dabei oberseitig die an dem Rollenträger 38 gehaltenen Führungsrollen 37 aus, die in direktem Kontakt mit der Oberseite des Falzbogens 40 stehen.In the embodiment variant of FIG. 3, the transport elements 32 of the further upper conveying member 31 are designed in the same way as those of the lower conveying member 21. The transport elements 22 and 32 grip the folded sheets 40 laterally from the heating rail 25, the heating strip 26 of which is pressed against the folded sheet 40 by the springs 27 via the heating rail 25. The counterpressure is exerted on the upper side by the guide rollers 37 held on the roller carrier 38, which are in direct contact with the upper side of the folded sheet 40.

Claims (7)

  1. Thread sealing machine with:
    - a driven, endless, circulating, lower conveyor member (21) carrying conveyor elements (22) for laid-out folded sheets (40),
    - an upper, endless, circulating conveyor member (11) driven in synchronism with the lower conveyor member (21) and carrying plate-shaped conveyor elements (12) at a predetermined pitch for holding the folded sheets (40) on the lower conveyor member (21),
    - insertion holes (15) provided in the plate-shaped conveyor elements (12) of the upper conveyor member (11),
    - an insertion device (13) associated with the insertion holes (15) and controlled in synchronism with the upper conveyor member (11) in order to insert thread portions supplied by the upper conveyor member (11) and cut into lengths corresponding to a thread stitch to be formed in the folded sheet (40), to form the thread stitches, and
    - a heating bar (25) disposed downstream of the insertion device (13) in the direction of transportation (41) of the folded sheet (40), arranged beneath the folded sheet (40), and biased (27) towards the folded sheet (40) in order to seal the thread stitches,
    in which,
    - a further upper, endless, circulating conveyor member (31) is provided in the region of the longitudinal extent of the heating bar (25) downstream, in the direction of transportation (41) of the folded sheet (40), of the first upper conveyor member (11) carrying the plate-shaped conveyor elements (12) with insertion holes (15), and is driven in synchronism with this first conveyor member (11), and
    - the further upper conveyor member (31) carries conveyor elements (32) resting on the folded sheet (40).
  2. Thread sealing machine according to Claim 1, characterized in that the conveyor elements (32) of the further upper conveyor member (31) are plate-shaped conveyor elements.
  3. Thread sealing machine according to Claim 1 or Claim 2, characterized in that the plate-shaped conveyor elements (32) of the further upper conveyor member (31) are mounted at half the pitch of the plate-shaped conveyor elements (12) of the first upper conveyor members (11).
  4. Thread sealing machine according to any one of Claims 1 to 3, characterized in that the two upper conveyor members (11, 31) are movable relative to one another, with reference to their direction of transportation.
  5. Thread sealing machine according to any one of the preceding claims, characterized in that at least one guide roller (37) mounted so as to be fixed (33) relative to the machine is provided opposite the heating bar (25) on the upper side of the folded sheet.
  6. Thread sealing machine according to Claim 5, characterized in that guide rollers (37) rest on the upper sides of the plate-shaped conveyor elements (32) which are parallel to the contact surfaces of the folded sheet.
  7. Thread sealing machine according to Claim 1, characterized in that one or a plurality of guide rollers (37) is arranged resting directly on the folded sheet (40) above the heating bar (25).
EP19940111900 1994-01-17 1994-07-29 Thread sealing machine Expired - Lifetime EP0663302B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4401153 1994-01-17
DE19944401153 DE4401153C1 (en) 1994-01-17 1994-01-17 Thread-sealing machine

Publications (2)

Publication Number Publication Date
EP0663302A1 EP0663302A1 (en) 1995-07-19
EP0663302B1 true EP0663302B1 (en) 1997-05-02

Family

ID=6508063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940111900 Expired - Lifetime EP0663302B1 (en) 1994-01-17 1994-07-29 Thread sealing machine

Country Status (2)

Country Link
EP (1) EP0663302B1 (en)
DE (1) DE4401153C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19960445A1 (en) * 1999-12-15 2001-06-21 Heidelberger Druckmasch Ag Device for sealing stitching threads

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD95830A1 (en) * 1971-03-10 1973-02-20
GB1333829A (en) * 1971-05-14 1973-10-17 Polygraph Leipzig Method and apparatus for thread-sealing
CH591960A5 (en) * 1973-11-13 1977-10-14 Polygraph Leipzig Machine for forming wire clip blanks - can be programmed for number of bends through low power electromagnet (SW240676)

Also Published As

Publication number Publication date
EP0663302A1 (en) 1995-07-19
DE4401153C1 (en) 1995-05-11

Similar Documents

Publication Publication Date Title
EP1751005B1 (en) Method and device for packaging flat articles
EP1007411B1 (en) Device for automatic bundling of sheets
EP0968919B1 (en) Method and device for enveloping quadrangular objects with a tape-like enveloping material
DE3502608A1 (en) METHOD AND DEVICE FOR BONDING TEXTILE AREAS
DE2812579C2 (en) Device for introducing the free end of a continuously conveyed plastic web into a stretching and fixing station
DE2353886B2 (en) DEVICE FOR THE CONTINUOUS MANUFACTURING OF BAGS FROM A LONGITUDINAL FOLDED, THERMOPLASTIC OR HEAT SEALABLE WEB
DE3713036A1 (en) FRONT ADHESIVE DEVICE FOR ADHESIVE BINDING MACHINE
DE2414262C3 (en) Method and apparatus for producing a nail strip
EP0663302B1 (en) Thread sealing machine
DE2211171C2 (en) Device for thread sealing continuously conveyed folded sheets
CH692943A5 (en) Book forming and pressing machine.
DE2741332A1 (en) METHOD FOR MANUFACTURING A BOOK BLOCK AND DEVICE FOR CARRYING OUT THE METHOD
DE69015897T2 (en) Process and plant for corrugated textile webs.
DE3419610A1 (en) Method and apparatus for attaching cover sheets to blocks
EP2067631B1 (en) Embossing device using embossing belts
DE1461203A1 (en) Cutting and conveying device for sheet material
DE3905469A1 (en) DEVICE FOR APPLYING REINFORCEMENT LABELS PROVIDED WITH A GLUE APPLICATION ON A CROSS-PERFORATED RAIL
CH692730A5 (en) Enfolding or spine gluing device for book block
EP2316767B1 (en) Device and method for manufacturing printed product stacks
DE1920863A1 (en) Film packing machine for loose leaf station - ery etc
DE2920221C2 (en) Device for feeding fleece backing to a forming belt
DE19610814C1 (en) Thread sealing machine with sheet conveyors, thread clamps, bending appliance
DE2113109B2 (en) Device for joining paper webs
EP1083059B1 (en) Device for binding with thread continuously fed printed products
EP1108561B1 (en) Device for sealing binding thread

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): FR GB IT

17P Request for examination filed

Effective date: 19960115

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19960813

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): FR GB IT

ITF It: translation for a ep patent filed

Owner name: BUGNION S.P.A.

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19970731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19990730

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010330

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010626

Year of fee payment: 8

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020729

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050729