DE3716715C2 - - Google Patents

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Publication number
DE3716715C2
DE3716715C2 DE3716715A DE3716715A DE3716715C2 DE 3716715 C2 DE3716715 C2 DE 3716715C2 DE 3716715 A DE3716715 A DE 3716715A DE 3716715 A DE3716715 A DE 3716715A DE 3716715 C2 DE3716715 C2 DE 3716715C2
Authority
DE
Germany
Prior art keywords
paper
heating
embossing
closing area
heating zone
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
DE3716715A
Other languages
German (de)
Other versions
DE3716715A1 (en
Inventor
Werner 6740 Landau De Roemhild
Reinhold 7255 Rutesheim De Uhlemayr
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.)
DRESCHER GESCHAEFTSDRUCKE GMBH, 7255 RUTESHEIM, DE
Original Assignee
Drescher Geschaeftsdrucke 7255 Rutesheim De GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Drescher Geschaeftsdrucke 7255 Rutesheim De GmbH filed Critical Drescher Geschaeftsdrucke 7255 Rutesheim De GmbH
Priority to DE19873716715 priority Critical patent/DE3716715A1/en
Publication of DE3716715A1 publication Critical patent/DE3716715A1/en
Application granted granted Critical
Publication of DE3716715C2 publication Critical patent/DE3716715C2/de
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0078—Measures or configurations for obtaining anchoring effects in the contact areas between layers
    • B29C37/0082—Mechanical anchoring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2053—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position
    • B29C65/2061—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by sliding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being in the form of a sinusoidal wave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/748—Joining plastics material to non-plastics material to natural products or their composites, not provided for in groups B29C66/742 - B29C66/746
    • B29C66/7486—Paper, e.g. cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8223—Worm or spindle mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
    • B31F5/02—Attaching together sheets, strips or webs; Reinforcing edges by crimping or slotting or perforating
    • B31F5/022—Attaching together sheets, strips or webs; Reinforcing edges by crimping or slotting or perforating using a rotary tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
    • B31F5/04—Attaching together sheets, strips or webs; Reinforcing edges by exclusive use of adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
    • B43M5/00—Devices for closing envelopes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/12—Paper, e.g. cardboard
    • B29K2711/123—Coated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Paper (AREA)

Description

Die Erfindung betrifft ein Verfahren bzw. eine Vorrichtung mit den Merk­ malen des Oberbegriffs des Anspruchs 1 bzw. des Anspruchs 2.The invention relates to a method and an apparatus with the Merk paint the preamble of claim 1 and claim 2.

Bei Verfahren dieser Art ist es bekannt, einen Heiß­ schmelzkleber zu verwenden, der als plastifizier­ bare Beschichtung auf der gesamten Fläche des Papierblatts gleichmäßig und fein verteilt aufge­ tragen wird. Das Papier kann auf der beschichteten Seite bedruckt oder von Hand beschriftet werden. Nach der Beschriftung können die Papierlagen, bei­ spielsweise eines gefalzten Einblattbriefes, am Schließbereich, vorzugsweise am Blattrand, unter An­ wendung von Hitze und Druck verbunden werden. Hier­ bei ist es nachteilig, daß die Verbindung der Papierlagen im Schließbereich nicht zufrieden­ stellend ist. Bei der bekannten Hitze- und Druckanwendung erfolgt lediglich eine Verklebung im Schließbereich, die bei vorsichtiger und geschickter Manipu­ lation nachträglich unbemerkbar geöffnet und geschlossen werden kann, so daß eine Geheimhaltung der auf der beschichteten In­ nenseite des Papiers befindlichen Daten nicht gewährleistet ist.In processes of this type, it is known to be hot to use hot melt adhesive as a plasticizer bare coating on the entire surface of the Paper sheets evenly and finely distributed will wear. The paper can be coated on the Side printed or labeled by hand. After the inscription, the layers of paper, at for example a folded one-sheet letter, on Closing area, preferably on the leaf margin, under An heat and pressure. Here it is disadvantageous that the connection of the Paper layers in the closing area are not satisfied is posed. With the well-known heat and Pressure is only applied by gluing  in the closing area, which with careful and skillful manipulation lation can be subsequently opened and closed unnoticeably can, so that secrecy of the coated on the In data on the inside of the paper is not guaranteed.

Ein derartiges Verfahren samt zugehöriger Vorrichtung ist bei­ spielsweise aus "Verpackungsrundschau 10/1964", Seiten 73 bis 76 bekannt.Such a method together with the associated device is shown in for example from "Verpackungsrundschau 10/1964", pages 73 to 76 known.

Aus der DE-AS 12 94 175 ist das Verprägen von Papierlagen mit­ tels in Ultraschallschwingungen versetzten Sonotroden bekannt, wobei die Sonotroden eine Arbeitsfläche aufweisen, welche in eine Vielzahl von im Verhältnis zu der Gesamtfläche der zu bil­ denden Naht kleine, durch Vertiefungen voneinander getrennte Flächeneinheiten aufgeteilt ist.DE-AS 12 94 175 describes the stamping of paper layers known ultrasonic vibrations sonotrodes, wherein the sonotrodes have a work surface, which in a variety of in relation to the total area of the bil end seam small, separated by depressions Area units is divided.

Darüberhinaus ist aus DE-OS 21 16 262 bekannt, Papierlagen punktweise durch Anwendung von Druck und Wärme zu Verkleben und zu Verprägen. In addition, from DE-OS 21 16 262 paper layers are known point by point by applying pressure and Glue and emboss heat.  

Die Aufgabe der Erfindung besteht darin, ein Verfahren bzw. eine Vorrichtung mit den Merkmalen des Oberbegriffs des Anspruchs 1 bzw. des Anspruchs 2 dahingehend weiter­ zubilden, daß ein einwandfreier Verschluß der Papierlagen er­ zielt wird, der bei einem Versuch, die Lagen zu trennen, sicht­ bar zerstört wird.The object of the invention is to provide a method and a device with the Features of the preamble of claim 1 and claim 2 further to make sure that the paper layers are properly sealed aiming to see when trying to separate the layers bar is destroyed.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 bzw. des Anspruchs 2 gelöst.This object is achieved by the characterizing Features of claim 1 and claim 2 solved.

Bevorzugte Ausgestaltungen und Weiterbildungen sowie weitere Vorteile und wesentliche Einzelheiten der Erfindung sind den Merkmalen der Unteransprüche, der nachfolgenden Beschreibung und der Zeichnung zu entnehmen, die in schematischer Darstel­ lung bevorzugte Ausführungsformen als Beispiel zeigt. Es stel­ len dar:Preferred refinements and developments as well as others Advantages and essential details of the invention are the Features of the subclaims, the description below and the drawing can be seen in a schematic representation shows preferred embodiments as an example. It stel len represent:

Fig. 1 eine erfindungsgemäße Vorrichtung zum Verbinden von mit einer plastifizierbaren Beschichtung versehenen Papierlagen in Seitenansicht, Fig. 1 shows an inventive device for connecting provided with a plasticizable coating paper layers in side view,

Fig. 2 der Heiz- und Prägeteil der Vorrichtung gemäß Fig. 1 in Prinzipdarstellung und Fig. 2 shows the heating and embossing part of the device of FIG. 1 in a schematic representation and

Fig. 3 der Heiz- und Prägeteil der erfindungsge­ mäßen Vorrichtung ähnlich der Fig. 2, jedoch mit einer anders ausgeführten Heizzone. Fig. 3 shows the heating and embossing part of the device according to the invention similar to FIG. 2, but with a different heating zone.

Die in der Zeichnung dargestellte Vorrichtung 1 ist als Heißsiegel-Prägeeinrichtung ausgeführt, mittels der mindestens zwei Papierlagen 2, 3, insbe­ sondere eines gefalzten Einblattbriefes, verbunden werden können. Die Papierlagen 2, 3 besitzen an den einander zugewandten Innenseiten eine bevorzugt aus einem Heißschmelzkleber bestehende plastifizierbare Beschichtung 4. Das Papier kann auf der be­ schichteten Innenseite handschriftlich oder maschinell beschriftet sein und wird zum Ver­ schließen, vorzugsweise an Randbereichen, durch die Vorrichtung 1 in Pfeilrichtung (von rechts nach links) hindurchtransportiert.The device 1 shown in the drawing is designed as a heat seal embossing device, by means of which at least two paper layers 2, 3 , in particular a folded single-sheet letter, can be connected. The paper layers 2, 3 have a plasticizable coating 4, preferably consisting of a hot-melt adhesive, on the inner sides facing one another. The paper can be inscribed on the coated inside by hand or by machine and is closed for transportation, preferably at edge areas, transported through the device 1 in the direction of the arrow (from right to left).

Dazu sind an einer Grundplatte 5 der Vorrichtung 1 ein oberes und ein unteres Antriebsrad 6, 7, eine obere und eine untere Einzugswalze 8, 9, eine obere und eine untere Heizbacke 10, 11, ein oberes und ein unteres Prägerad 12, 13 sowie am endseitigen Papierauslauf ein oberes und ein unteres Umlenkrad 14, 15 für ein oberes und ein unteres Transportband 16, 17 vorgesehen, die ebenfalls um die Einzugswalzen 8, 9 herum und entlang der Heizzone 18 und Präge­ station 19 geführt sind. Die Transportbänder 16, 17 können über Spannrollen 20 gestrafft werden. Die Antriebsräder 6, 7 können mit den Einzugswalzen 8, 9 über eine Verzahnung in unmittelbarem Eingriff stehen. Die Prägeräder 12, 13 können über einen Kettentrieb 21 von der unteren Einzugswalze 9 ange­ trieben sein.For this purpose, an upper and a lower drive wheel 6, 7 , an upper and a lower feed roller 8, 9 , an upper and a lower heating jaw 10, 11 , an upper and a lower embossing wheel 12, 13 and on a base plate 5 of the device 1 end paper outlet an upper and a lower guide wheel 14, 15 for an upper and a lower conveyor belt 16, 17 are provided, which are also around the feed rollers 8, 9 and along the heating zone 18 and embossing station 19 are performed. The conveyor belts 16, 17 can be tightened via tensioning rollers 20 . The drive wheels 6, 7 can be in direct engagement with the feed rollers 8, 9 via a toothing. The embossing wheels 12, 13 can be driven via a chain drive 21 from the lower feed roller 9 .

Der Zeichnung ist zudem zu entnehmen, daß die Einzugswalzen 8, 9 unmittelbar vor der Einführung 22 in die Heizzone 18 vorgesehen sein können, während die Prägeräder 12, 13 unmittelbar am Ende der Heiz­ zone 18 dicht hinter den Heizbacken 10, 11 angeordnet sind und sich etwa in der Mitte der Vorrichtung 1 befinden. Der obere und der untere Teil der Vor­ richtung 1 können über Stellschrauben 23 in Richtung gegeneinander justiert werden. Für die Prägestation 19 ist eine Justierschraube 24 vorge­ sehen, mittels der das obere Prägerad 12 gegenüber dem unteren Prägerad 13 für verschiedene Papier­ dicken und unterschiedliche Prägedrücke genau einge­ stellt werden kann. Außerdem ist für die obere Heizbacke 10 eine Einstellschraube 25 vorgesehen, mittels der der Spalt 26 zwischen den beiden Heiz­ backen 10, 11 zur Anpassung an unterschiedlich dicke Papiere entsprechend den Erfordernissen variiert werden kann. Darüber hinaus ist zu er­ kennen, daß in jeder der beiden Heizbacken 10, 11 je ein elektrisches, vorzugsweise stabförmiges Heizelement 27 angeordnet ist. Die Heizelemente 27 können zweckmäßig unabhängig voneinander stufenlos ge­ regelt werden, so daß eine individuelle und genaue An­ passung der Heizleistung möglich ist.The drawing also shows that the feed rollers 8, 9 can be provided immediately before the introduction 22 into the heating zone 18 , while the embossing wheels 12, 13 are arranged immediately behind the heating jaws 10, 11 and at the end of the heating zone 18 are located approximately in the middle of the device 1 . The upper and lower part of the device 1 can be adjusted in the direction of each other via adjusting screws 23 . For the embossing station 19 , an adjusting screw 24 is provided, by means of which the upper embossing wheel 12 can be made thicker than the lower embossing wheel 13 for different paper and different embossing pressures. In addition, an adjusting screw 25 is provided for the upper heating jaw 10 , by means of which the gap 26 between the two heating jaws 10, 11 can be varied to adapt to papers of different thicknesses according to the requirements. In addition, it is to be known that in each of the two heating jaws 10, 11 an electrical, preferably rod-shaped heating element 27 is arranged. The heating elements 27 can conveniently be controlled independently of each other continuously, so that an individual and accurate adjustment of the heating power is possible.

Den Fig. 1 und 2 ist zu entnehmen, daß die spaltför­ mige Heizzone 18 zwischen den Heizbacken 10, 11 als sinusförmige Wellung 28 ausgeführt ist, und zwar so, daß ein Wellenhoch 29 der einen Heizbacke in ein Wellen­ tief 30 der anderen Heizbacke eingreift bzw. diesem ge­ gegenüberliegt. Die Wellung 28 weist in Transportrichtung einen verhältnismäßig flachen bzw. langgestreckten Ver­ lauf auf und kann zweckmäßig so bemessen sein, daß die Wellenhöhe etwa gleich der Höhe bzw. Breite des Spaltes 26 zwischen den Heizbacken 10, 11 ist. Außerdem ist zu erkennen, daß der Abstand zwischen einem Wellentief 30 und einem Wellenhoch 29 in Transportrichtung um ein Vielfaches größer ist als die Höhe bzw. Breite des Spaltes 26 zwischen den Heizbacken 10, 11. Die Heizzo­ nenwellung kann so bemessen sein, daß die Breite bzw. Höhe des Spaltes 26 z. B. etwa 1 bis 8 mm beträgt, wäh­ rend der Abstand in Transportrichtung zwischen einem Wellenhoch 29 und einem Wellentief 30 beispielsweise etwa 20 bis 150 mm betragen kann, wobei die Abstände auch un­ terschiedliche Größen haben können. Infolge einer solchen Ausbildung erfolgt beim Durchlauf des Papiers durch den wellenförmigen Heizzonenspalt zum einen eine ausge­ zeichnete Wärmekontaktierung und zum anderen wird den­ noch ein verhältnismäßig reibungsarmer Papierdurchzug erzielt. Die Prägeräder 12, 13 befinden sich direkt hinter der Heizzonenwellung 28, so daß das aus dem wellenförmi­ gen Spalt 26 austretende Papier unmittelbar in den Ein­ lauf 31 der Prägestation 19 gelangt. FIGS. 1 and 2 reveals that the spaltför-shaped heating zone 18 between the heated jaws 10, 11 is designed as a sinusoidal undulation 28, and such that a shaft high 29 of a heating jaw in a wave deep 30 of the other heater bar engages or is opposite to this ge. The corrugation 28 has a relatively flat or elongated Ver in the direction of transport and can be appropriately dimensioned so that the wave height is approximately equal to the height or width of the gap 26 between the heating jaws 10, 11 . It can also be seen that the distance between a shaft depth 30 and a shaft height 29 in the transport direction is many times greater than the height or width of the gap 26 between the heating jaws 10, 11 . The Heizzo nenwellung can be dimensioned so that the width or height of the gap 26 z. B. is about 1 to 8 mm, while the distance in the direction of transport between a shaft height 29 and a shaft depth 30 can be, for example, about 20 to 150 mm, the distances can also have un different sizes. As a result of such training takes place during the passage of the paper through the wave-shaped heating zone gap on the one hand an excellent heat contact and on the other hand a relatively low-friction paper flow is achieved. The embossing wheels 12, 13 are located directly behind the heating zone corrugation 28 , so that the paper emerging from the gap 26 in the form of a shaft comes directly into the run 31 of the embossing station 19 .

Vorteilhaft werden die Prägeräder 12, 13 von den Heizbacken 10, 11 mindestens teilweise umschlossen und dadurch er­ hitzt. Am Anfang der Heizzonenwellung 28, also im Bereich der Einführung 22 sind an den Heizbacken 10, 11 Ein­ führschrägen 32 ausgebildet.The embossing wheels 12, 13 are advantageously at least partially enclosed by the heating jaws 10, 11 and thereby it heats up. At the beginning of the heating zone corrugation 28 , that is to say in the area of the introduction 22 , a guide bevel 32 is formed on the heating jaws 10, 11 .

Bei dem in der Fig. 3 dargestellten erfindungsgemäßen Aus­ führungsbeispiel ist die Heizzone 18′ nicht gewellt, son­ dern als dünne, etwa messerblattförmige Heizplatte 33 aus­ geführt. Die dünne Heizplatte 33 befindet sich unmittelbar vor dem Einlauf 31 der Prägeräder 12, 13. Die Papierlagen 2, 3 die an dem am Blattrand vorgesehenen Schließbereich 34 aufgeheizt und anschließend geprägt werden, gleiten an der oberen und unteren Fläche der dünnen Heizplatte 33 entlang. Die Heizplatte 33 befindet sich somit zwischen der oberen Papierlage 2 und der unteren Papierlage 3. Auch hierbei wird trotz geringer Gleitreibung eine intensive Erwärmung des Schließbereichs 34 durch Körperkontakt erzielt.In the exemplary embodiment according to the invention shown in FIG. 3, the heating zone 18 'is not corrugated, but is performed as a thin, approximately knife-shaped heating plate 33 . The thin heating plate 33 is located directly in front of the inlet 31 of the embossing wheels 12, 13 . The paper layers 2, 3 which are heated at the closing area 34 provided on the sheet edge and then embossed slide along the upper and lower surface of the thin heating plate 33 . The heating plate 33 is thus located between the upper paper layer 2 and the lower paper layer 3 . Here too, despite the low sliding friction, intensive warming of the closing area 34 is achieved through body contact.

Die dünne Heizplatte 33 kann an einer Seite eines Heiz­ blocks 35 vorgesehen sein, der um ein Vielfaches dicker ist als die Heizplatte 33, so daß eine große Masse für eine hohe Wärmekapazität zur Verfügung steht. Das stufen­ los regelbare elektrische Heizelement 25′ kann zweckmäßig im Heizblock 35 installiert sein. Nach einer anderen (nicht dargestellten) erfindungsgemäßen Ausführung kann es auch günstig sein, die dünne Heizplatte 33 nicht wie dargestellt plan auszuführen, sondern als Wellblech auszubilden, dessen Wellenverlauf etwa wie beim vorbeschriebenen Ausführungsbeispiel ausge­ führt sein kann. Mit einer derartig gewellten dünnen Heizplatte 33 kann ebenfalls bei geringer Gleit­ reibung ein hoher Wärmekontakt zu der oberen und der unteren Papierlage 2, 3 erzielt werden.The thin heating plate 33 can be provided on one side of a heating block 35 , which is many times thicker than the heating plate 33 , so that a large mass is available for a high heat capacity. The infinitely variable electric heating element 25 'can be expediently installed in the heating block 35 . According to another (not shown) embodiment according to the invention, it may also be advantageous not to make the thin heating plate 33 flat as shown, but to form it as corrugated sheet, the wave shape of which may be approximately as in the above-described embodiment. With such a corrugated thin heating plate 33 , a high thermal contact to the upper and lower paper layers 2, 3 can also be achieved with low sliding friction.

Die Prägeräder 12, 13 besitzen Vertiefungen 36 und Prägeerhebungen 37, die abwechselnd angeordnet sind und in ihrer geometrischen Form zweckmäßig gleich gestaltet sind. Für besondere Verschluß­ arten kann es jedoch auch günstig sein, die Präge­ erhebungen 37 in ihrer geometrischen Form unter­ schiedlich zu gestalten, so daß wechselweise verschiedene Verschlußprägungen am Schließbereich 34 der Papierlagen 2, 3 erzielt werden können. Die Prägeerhebungen 37 können vorzugsweise als Steg, Punkt, Kreuz und dergleichen ausgebildet sein.The embossing wheels 12, 13 have depressions 36 and embossing elevations 37 , which are arranged alternately and are expediently designed identically in their geometric shape. For special types of closures, however, it can also be favorable to design the embossed elevations 37 in their geometric shape under differently, so that different closure embossments can be achieved at the closing area 34 of the paper layers 2, 3 . The embossing elevations 37 can preferably be designed as a web, point, cross and the like.

Darüber hinaus kann es günstig sein, an den Präge­ rädern 12, 13 Schneidteile 38 vorzusehen, die als kleine Schneidmesser bevorzugt an den Prägeer­ hebungen 37 ausgebildet sein können. Mit den Schneidteilen 38 werden gleichzeitig während des Verschließens der Papierlagen 2, 3 zwischen den Prägerädern 12, 13 kleine Sollreißschnittstellen in den Schließbereich 34 des Papiers eingebracht, die bewirken, daß bei einem Versuch, den Verschluß zu öffnen, das Papier an den vorgegebenen Sollreiß­ stellen zwangsläufig ausgerissen wird und ein aus­ gefranster Schließbereich entsteht, so daß nach­ träglich sofort erkannt werden kann, daß ein unbe­ fugter Öffnungsversuch vorgenommen wurde. Die Schneidteile 38 müssen nicht zwangsläufig an den Prägerädern 12, 13 vorgesehen sein, sondern können sich auch an einem oder mehreren (nicht darge­ stellten) zusätzlichen Andruckrädern befinden, wo­ durch eine wahlweise Einbringung der Sollreiß­ schnittstellen in das Papier erzielt werden kann. Sowohl die Prägeräder 12, 13 als auch die eventuell vorgesehenen zusätzlichen Andruckräder können zweckmäßig auswechselbar gelagert sein, so daß verschiedene Verschlußprägungen und Sollreiß­ schnittstellen durch einen einfachen Austausch der Räder entsprechend den Erfordernissen erzielt werden kann.In addition, it may be advantageous to provide 12, 13 cutting parts 38 on the embossing wheels, which can be formed as small cutting knives preferably on the embosser 37 . With the cutting parts 38 , small predetermined tear interfaces are simultaneously introduced into the closing area 34 of the paper during the closing of the paper layers 2, 3 between the embossing wheels 12, 13 , which cause the paper to set to the predetermined predetermined tear when an attempt is made to open the closure is inevitably torn out and a fringed closing area arises, so that afterwards it can be immediately recognized that an unauthorized attempt to open it has been made. The cutting parts 38 do not necessarily have to be provided on the embossing wheels 12, 13 , but can also be located on one or more (not shown) additional pressure wheels, where interfaces can be achieved by optionally introducing the predetermined tear into the paper. Both the embossing wheels 12, 13 and the additional pressure wheels which may be provided can expediently be interchangeably mounted, so that different closure stampings and predetermined tear interfaces can be achieved by simply exchanging the wheels according to the requirements.

Die Papierlagen 2, 3 werden zum Verschließen am bevorzugt randseitigen Schließbereich 34 mittels der Einzugswalzen 8, 9 in die Vorrichtung 1 einge­ fahren und gelangen in die als wellenförmiger Spalt ausgeführte Heizzone 18. Durch die Wellung 28 wird ein intensiver Wärmekontakt sowohl an der unteren als auch an der oberen Papierseite erzielt. Das derart vorgeheizte Papier läuft in die Präge­ station 19 ein und wird hier durch die angetriebenen und verstellbaren Prägeräder 12, 13 zuverlässig verschlossen. Nach dem Verschließen wird das Papier über die Transportbänder 16, 17 aus der Station her­ ausgeführt. Die Beschichtung 4 der Papierlagen 2, 3 wird beim erfindungsgemäßen Verfahren demnach zu­ nächst durch Hitze aktiviert. Sodann werden die Papierlagen 2, 3 im Schließbereich 34 an definierten Stellen mittels Prägedruck derart formschlüssig verbunden, daß die Fasern der oberen und der unteren Papierlage 2, 3 sich miteinander verflechten, wodurch ein inniger Verbund der Papierfasern erzielt wird, so daß eine zerstörungsfreie Öffnung des Papierver­ schlusses nicht möglich ist.The paper layers 2, 3 are moved into the device 1 by means of the feed rollers 8, 9 for closing at the preferably edge-side closing area 34 and enter the heating zone 18 designed as a wave-shaped gap. Due to the corrugation 28 , intensive thermal contact is achieved both on the lower and on the upper paper side. The preheated paper runs into the embossing station 19 and is reliably closed here by the driven and adjustable embossing wheels 12, 13 . After sealing, the paper is carried out of the station via the conveyor belts 16, 17 . The coating 4 of the paper layers 2, 3 is therefore first activated by heat in the method according to the invention. Then the paper layers 2, 3 in the closing area 34 are positively connected at defined points by means of embossing so that the fibers of the upper and lower paper layers 2, 3 interweave, whereby an intimate bond of the paper fibers is achieved, so that a non-destructive opening of the Paper closure is not possible.

Ein wesentlicher Grundgedanke der Erfindung ist demnach, die Papierbahnen mit deren Beschichtung in der Heizzone 18 aufzuheizen und anschließend in der Wärme, und zwar in derselben Wärme, an definierten Stellen der Papierbahn diese durch Anwendung von Druck und Hitze zu rändeln. Dadurch wird erreicht, daß die Fasern der mit der thermo­ plastifizierten Beschichtung versehenen Papier­ bahnen derart ineinander tiefgezogen werden, daß eine innige Verflechtung der übereinanderliegenden Papierfasern und der Beschichtung entsteht und dadurch eine hohe Sicherheit gegen unbefugtes Öffnen eines Briefes, Mailers usw. gegeben ist. Wenn nämlich der so hergestellte verflochtene und verklebte Rändelverschluß aufgetrennt wird, reißt die Papierfaserverflechtung auf und läßt sich nicht mehr in der Originalweise zusammenfügen, so daß eine etwaige unbefugte Öffnung des Briefes ohne weiteres nachgewiesen werden kann, da die Faser­ struktur im Schließbereich 34 durch den unbefugten Öffnungsvorgang zwangsläufig zerstört wurde. An essential basic idea of the invention is accordingly to heat the paper webs with their coating in the heating zone 18 and then to knurl them in the heat, and in the same heat, at defined points on the paper web by applying pressure and heat. It is thereby achieved that the fibers of the paper provided with the thermoplastic coating are deeply drawn into one another in such a way that an intimate interweaving of the superimposed paper fibers and the coating arises, thereby providing a high level of security against unauthorized opening of a letter, mailer etc. If the interwoven and glued knurled closure thus produced is torn open, the paper fiber interlacing tears open and can no longer be put together in the original way, so that any unauthorized opening of the letter can be detected without further ado, since the fiber structure in the closing area 34 by the unauthorized person Opening process was inevitably destroyed.

Durch die bereits erwähnte bevorzugte Ausführung der Heizzonenwellung 28 wird eine besonders intensive Wärmeübertragung erreicht. Die Vor­ richtung 1 ist selbstverständlich für jede Art des Zusammenfügens von Papier geeignet, beispielsweise auch für die Herstellung von Schreibblocks, Tüten, Formularblättern, Formularsätzen, Ein- und Mehr­ blattbriefen und dergleichen.A particularly intensive heat transfer is achieved by the already mentioned preferred embodiment of the heating zone corrugation 28 . Before device 1 is of course suitable for any type of assembly of paper, for example also for the production of writing pads, bags, form sheets, form sets, single and multi-sheet letters and the like.

Claims (13)

1. Verfahren zum Verbinden von mit einer plastifizierbaren Be­ schichtung (4) versehenen Papierlagen (2, 3), insbesondere ei­ nes gefalzten, auf der inneren Beschichtungsseite beschrifte­ ten Papierblatts, an mindestens einem, beispielsweise am Blattrand vorgesehenen, Schließbereich, wobei die Beschichtung (4) des Schließbereichs (34) zunächst durch Hitze aktiviert wird und danach die Papierlagen (2, 3) im Schließbereich (34) an definierten Stellen mittels Druck verbunden werden, dadurch gekennzeichnet, daß die Papierlagen durch Einstellung eines vorgegebenen Prägedrucks derart formschlüssig miteinander verbunden werden, daß die Fasern der oberen und unteren Papierlage (2, 3) sich miteinander verflechten und einen innigen Verbund der Papier­ fasern bilden, welcher ein zerstörungsfreies Öffnen des Schließbereichs (34) verhindert. 1. Method for connecting paper layers ( 2, 3 ) provided with a plasticizable coating ( 4 ), in particular a folded paper sheet labeled on the inner coating side, on at least one closing area provided, for example, on the sheet edge, the coating ( 4 ) of the closing area ( 34 ) is first activated by heat and then the paper layers ( 2, 3 ) in the closing area ( 34 ) are connected at defined points by pressure, characterized in that the paper layers are positively connected to one another by setting a predetermined embossing pressure that the fibers of the upper and lower paper layer ( 2, 3 ) intertwine and form an intimate bond of the paper fibers, which prevents non-destructive opening of the closing area ( 34 ). 2. Vorrichtung zur Verbindung von Papierlagen (2, 3) an mindestens einem, beispielsweise am Blattrand vorgesehenen Schließbereich (34) mit einer Heizzone (18) zwischen zwei Heizbacken (10, 11) und Präge­ rädern (12, 13) für den Schließbereich (34), ins­ besondere zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß die spalt­ förmige Heizzone (18) zwischen den Heizbacken (10, 11) als in Papiertransportrichtung sich er­ streckende Wellung (28) ausgebildet ist und daß an­ schließend am Ende der Heizzonenwellung (28) die Prägeräder (12, 13) angeordnet sind.2. Device for connecting paper layers ( 2, 3 ) on at least one closing area ( 34 ), for example provided on the sheet edge, with a heating zone ( 18 ) between two heating jaws ( 10, 11 ) and embossing wheels ( 12, 13 ) for the closing area ( 34 ), in particular to carry out the method according to claim 1, characterized in that the gap-shaped heating zone ( 18 ) between the heating jaws ( 10, 11 ) as in the paper transport direction he extending corrugation ( 28 ) is formed and that at closing at the end the heating zone corrugation ( 28 ) the embossing wheels ( 12, 13 ) are arranged. 3. Vorrichtung nach Anspruch 2, dadurch gekenn­ zeichnet, daß mindestens eine der Heizbacken (10, 11) zur Veränderung der Höhe des wellenförmigen Spaltes (26) quer zur Papierebene verstellbar ist.3. Apparatus according to claim 2, characterized in that at least one of the heating jaws ( 10, 11 ) for changing the height of the wave-shaped gap ( 26 ) is adjustable transversely to the plane of the paper. 4. Vorrichtung nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, daß die Wellung (28) der Heizzone (18) in Papiertransportrichtung langge­ streckt ausgebildet und der Abstand zwischen einem Wellentief (30) und einem Wellenloch (29) größer ist als die Höhe des Spaltes (26).4. Device according to one of claims 2 or 3, characterized in that the corrugation ( 28 ) of the heating zone ( 18 ) extends in the paper transport direction langge and the distance between a shaft depth ( 30 ) and a shaft hole ( 29 ) is greater than the height of the gap ( 26 ). 5. Vorrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die Höhe der Wellung (28) quer zur Papierebene etwa gleich der Höhe des Spaltes (26) ist.5. Device according to one of claims 2 to 4, characterized in that the height of the corrugation ( 28 ) transverse to the paper plane is approximately equal to the height of the gap ( 26 ). 6. Vorrichtung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß am Anfang der Wellung (28) der Heizzone (18) mindestens eine Einführ­ schräge (32) ausgebildet ist. 6. Device according to one of claims 2 to 5, characterized in that at the beginning of the corrugation ( 28 ) of the heating zone ( 18 ) at least one insertion slope ( 32 ) is formed. 7. Vorrichtung nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß in den den gewellten Spalt (26) begrenzenden Heizbacken (10, 11) mindestens ein elektrisches Heizelement (25′) ange­ ordnet ist, das bevorzugt stufenlos regelbar ist.7. Device according to one of claims 2 to 6, characterized in that in the corrugated gap ( 26 ) delimiting heating jaws ( 10, 11 ) at least one electric heating element ( 25 ') is arranged, which is preferably continuously adjustable. 8. Vorrichtung zur Verbindung von Papierlagen an mindestens einem, beispielsweise am Blattrand vorgesehenen Schließbereich (34) mit einer Heiz­ zone (18′) und Prägerädern (12, 13) für den Schließbereich (34), insbesondere zur Durch­ führung des Verfahrens nach Anspruch 1, dadurch ge­ kennzeichnet, daß die Heizzone (18′) als zwischen den Papierlagen (2, 3) vorgesehene messerblattförmige Heizplatte (33) ausgebildet ist, die vor dem Einlauf (31) der Prägeräder (12, 13) angeordnet ist (Fig. 3).8. A device for connecting paper layers on at least one, for example on the sheet edge provided closing area ( 34 ) with a heating zone ( 18 ' ) and embossing wheels ( 12, 13 ) for the closing area ( 34 ), in particular for carrying out the method according to claim 1 , characterized in that the heating zone ( 18 ' ) is designed as a blade-shaped heating plate ( 33 ) provided between the paper layers ( 2, 3 ), which is arranged in front of the inlet ( 31 ) of the embossing wheels ( 12, 13 ) ( Fig. 3 ). 9. Vorrichtung nach Anspruch 8, dadurch gekenn­ zeichnet, daß die dünne Heizplatte (33) an einem Heizblock (35) angeordnet ist, in dem das bevorzugt stufenlos regelbare elektrische Heizelement (25′) vorgesehen ist.9. The device according to claim 8, characterized in that the thin heating plate ( 33 ) is arranged on a heating block ( 35 ) in which the preferably continuously variable electric heating element ( 25 ') is provided. 10. Vorrichtung nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, daß mindestens eines der Prägeräder (12, 13) in Richtung gegen das andere Prägerad (12, 13) verstellbar ist. 10. Device according to one of claims 2 to 9, characterized in that at least one of the embossing wheels ( 12, 13 ) in the direction against the other embossing wheel ( 12, 13 ) is adjustable. 11. Vorrichtung nach einem der Ansprüche 2 bis 10, dadurch gekennzeichnet, daß die Prägeräder (12, 13) geometrisch gleich oder verschieden ausgebildete Vertiefungen (36) und Prägeerhebungen (37) auf­ weisen, die bevorzugt als Stege, Punkte, Kreuze aus­ gebildet sind.11. The device according to one of claims 2 to 10, characterized in that the embossing wheels ( 12, 13 ) geometrically identical or differently shaped recesses ( 36 ) and embossing elevations ( 37 ), which are preferably formed as webs, dots, crosses . 12. Vorrichtung nach einem der Ansprüche 2 bis 11, dadurch gekennzeichnet, daß an mindestens einem der Prägeräder (12, 13) oder einem Andruckrad Schneid­ teile (38) für in den Schließbereich (34) einzu­ bringende Sollreißschnittstellen angeordnet sind.12. The device according to one of claims 2 to 11, characterized in that on at least one of the embossing wheels ( 12, 13 ) or a pressure wheel cutting parts ( 38 ) are arranged for in the closing area ( 34 ) to be introduced tear interfaces. 13. Vorrichtung nach einem der Ansprüche 2 bis 12, dadurch gekennzeichnet, daß in Transportrichtung vor der Heizzone (18, 18′) Einzugswalzen (8, 9) vorge­ sehen sind, die mit mindestens einer der Prägewalzen (12, 13) über einen Zahn- oder Kettentrieb (21) ver­ bunden sind, und daß entlang der Heizzone (18) ein oberes und ein unteres Transportband (16, 17) vorge­ sehen ist, die an je einer der bevorzugt ange­ triebenen Einzugswalzen (8, 9) umgelenkt sind.13. The device according to one of claims 2 to 12, characterized in that in the transport direction before the heating zone ( 18, 18 ' ) feed rollers ( 8, 9 ) are easily seen, with at least one of the embossing rollers ( 12, 13 ) via a tooth - Or chain drive ( 21 ) are connected, and that along the heating zone ( 18 ) an upper and a lower conveyor belt ( 16, 17 ) is easily seen, which are deflected to one of the preferred driven feed rollers ( 8, 9 ).
DE19873716715 1987-05-19 1987-05-19 Method and device for joining paper layers Granted DE3716715A1 (en)

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DE19873716715 DE3716715A1 (en) 1987-05-19 1987-05-19 Method and device for joining paper layers

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Application Number Priority Date Filing Date Title
DE19873716715 DE3716715A1 (en) 1987-05-19 1987-05-19 Method and device for joining paper layers

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DE3716715A1 DE3716715A1 (en) 1988-12-01
DE3716715C2 true DE3716715C2 (en) 1993-07-22

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DE19873716715 Granted DE3716715A1 (en) 1987-05-19 1987-05-19 Method and device for joining paper layers

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Publication number Priority date Publication date Assignee Title
DE3903201C1 (en) * 1989-02-03 1989-09-28 H.F. & Ph.F. Reemtsma Gmbh & Co, 2000 Hamburg, De

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* Cited by examiner, † Cited by third party
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DE1294175B (en) * 1965-02-17 1969-09-11 Hesser Ag Maschf Device for producing the connecting seams of at least two overlapping layers of foils, in particular made of fibrous materials, such as paper or the like, sonotrodes offset by means of ultrasonic vibrations
SE339388B (en) * 1970-04-07 1971-10-04 Lilla Edets Pappersbruks Ab

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