EP0571281B1 - Druckverschliessvorrichtung für Briefumschläge - Google Patents

Druckverschliessvorrichtung für Briefumschläge Download PDF

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Publication number
EP0571281B1
EP0571281B1 EP93401287A EP93401287A EP0571281B1 EP 0571281 B1 EP0571281 B1 EP 0571281B1 EP 93401287 A EP93401287 A EP 93401287A EP 93401287 A EP93401287 A EP 93401287A EP 0571281 B1 EP0571281 B1 EP 0571281B1
Authority
EP
European Patent Office
Prior art keywords
elements
pressure
machine according
machine
pressing elements
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
EP93401287A
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English (en)
French (fr)
Other versions
EP0571281A1 (de
Inventor
André Zeller
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.)
Danel Ferry SA
Original Assignee
Danel Ferry SA
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Filing date
Publication date
Application filed by Danel Ferry SA filed Critical Danel Ferry SA
Publication of EP0571281A1 publication Critical patent/EP0571281A1/de
Application granted granted Critical
Publication of EP0571281B1 publication Critical patent/EP0571281B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
    • B43M5/00—Devices for closing envelopes
    • B43M5/04—Devices for closing envelopes automatic
    • B43M5/047—Devices for closing envelopes automatic using pressure-sensitive adhesive

Definitions

  • the invention relates to a pressure sealing machine for correspondence articles.
  • each panel of the screen constituting a postal correspondence article, sealed for manufacture, for example of the type commonly designated by the English term "mailers”, or to be sealed after folding, of the letter card or other type. such as simple prints.
  • thermo-adhesive means it is different for printers which generate heat and which are more and more widespread (laser printer or other).
  • the inventor has found an effective means which makes it possible in part to reduce the pressure necessary while ensuring excellent sealing and which also makes it possible to simplify the machine.
  • the invention provides a pressure sealing machine for correspondence articles provided with various zones coated with an adhesive substance sensitive to pressure, conventionally comprising at least one pair of pressing elements rotating in opposite directions and between which pass at least the areas to seal articles, applied against each other, but which is remarkable in that the drive of the pressing elements is arranged in such a way that their tangential speeds, at the place of their contact with the articles, are different so as to exert on said sealing zones a pressure combined with friction.
  • Such a machine may in particular thus comprise only a single pair of pressing elements, but this is obviously in no way limiting.
  • the two elements of the pair of pressing elements are rotated but in such a way that their tangential peripheral speeds are different.
  • the pressing elements have identical diameters and are driven at different speeds of rotation or else the pressing elements have different diameters and are driven at identical or different speeds of rotation.
  • only one of the elements of the pair of pressing elements is motor, the other element being driven by the contact pressure, while the non-motor pressing element is further braked by a system.
  • the braking of the non-motor pressing element is, for example, obtained by an electromagnetic system.
  • each element of the pair of pressing elements is in the form of a cylinder.
  • each element of the pair of pressing elements is in the form of at least one roller providing free spaces so that these spaces do not transmit any pressure.
  • an embodiment according to the invention is remarkable in that it is combined with a similar machine arranged perpendicularly while a device for transferring from one to the other and for reference to 90 ° is provided to allow sealing in separate areas perpendicular to each other.
  • a machine according to the invention can of course be combined with other means and in particular with a device for feeding the articles and a folder arranged upstream of said machine in order to receive the folded articles to be sealed.
  • a motor is provided for driving in rotation at least one of the pressing elements, while itself is coupled to one of the rotating elements of the folder, this or another rotating element of the folder and a rotating element of the feed device also being coupled so that a single motor can drive the assembly.
  • FIG. 1 schematically shows a sealing machine 1 according to the invention, combined with a folding or folding device 2 and a feeding device 3 for the articles to be sealed.
  • the device 3 for supplying the articles can be of the sheet-by-sheet type or comprise a continuous supply combined with a breaker.
  • the folder 2 arranged between the feed device 3 and the sealing machine 1 is, for example, intended to make two or four pockets.
  • the sealing machine comprises a pair of pressing elements 4a and 4b mounted to rotate.
  • the pressing elements 4a, 4b are, for example, constituted by rollers or cylinders such as those shown in FIG. 2, or according to a variant, each of them can be constituted by at least one roller as in the embodiment pressing elements 4'a, 4'b and 5'a of Figures 3 and 4, for reasons which will be explained below.
  • a single cylinder (here 4b) is motor while the other cylinder 4a is mounted free in rotation so that they rotate in opposite directions.
  • the cylinder 4b is, for example, driven by means of a pulley 6 ( Figure 2) of which it is integral and which is engaged with a belt 7, itself driven by a motor 8 ( Figure 1).
  • One of the advantages of this structure is that it can drive the sealing machine 1, the folder 2 and the feed device 3 by the single motor 8.
  • one of the rotating elements of the folder for example the roller 9 of FIG. 1
  • the roller 9 of FIG. 1 is driven by the cylinder 4b, for example here by means of a double intermediate pulley 10 and two belts 11 and 12 respectively engaged with said cylinder 4b and said roller 9, while the same rotating element of the folder, or another such as roller 13, is engaged with a belt 14 and a rotating element 15 of the supply device 3.
  • Figure 2 shows a simple way to mount the cylinders 4a, 4b using rolling bearings (ball, needle or otherwise) 16, 16 'and 17, 17'.
  • the circuit of the articles to be sealed is provided so that they pass between the cylinders 4a and 4b and these are mounted so as to exert a certain contact pressure between them, possibly modifiable, for example by means of adjusting the 'center distance of said cylinders.
  • the cylinder 4a comprises a magnetic braking system 18 provided with two induction coils 19 and 20, the coil 19 being, for example, on the axis of the cylinder 4a and cooperating with the actual braking coil 20.
  • the braking system may in some cases not be used.
  • the two cylinders can be motors (possibly with a single motor and a drive link by belts, gears or the like), said cylinders, as already said, for example having the same diameter and being driven at different speeds of rotation or having different diameters and being driven at similar or different speeds of rotation.
  • the ratio of the tangential speeds of the cylinders can be, for example, 0.975.
  • each pressing element 4'a or 4'b is constituted by at least one roller 21a, 22a and respectively 21b, 22b.
  • FIG. 4 represents a machine 1A of which only one pressing element 4 ′ a and another can be seen machine 1B of which only a pressing element 5'a is seen.
  • Upstream of the machine 1A there may be provided, as described above, a folder, etc.
  • a device 23 for transferring and returning at 90 ° is arranged.
  • the device 23 comprises, for example, a conveyor belt 24 and a rectifier 25.

Landscapes

  • Package Closures (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Claims (11)

  1. Druckverschließvorrichtung (1) für Schemabriefe, die mit verschiedenen, mit einem druckempfindlichen Klebstoff beschichteten Zonen versehen sind, wobei die Vorrichtung wenigstens ein Paar Druckelemente (4a, 4b; 4'a, 4'b) aufweist, die in entgegengesetzten Richtungen rotieren und zwischen denen wenigstens die zu verschließenden und gegeneinandergedrückten Zonen der Schemabriefe hindurchgeführt werden, dadurch gekennzeichnet, daß der Antrieb der Druckelemente derart ausgeführt ist, daß ihre tangentialen Geschwindigkeiten an der Stelle ihres Kontaktes mit den Schemabriefen unterschiedlich sind derart, daß sie auf diese zu verschließenden Zonen einen mit Reibung kombinierten Druck ausüben.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die zwei Elemente (4a, 4b) des Druckelementenpaares rotierend angetrieben sind derart, daß ihre tangentialen Umfangsgeschwindigkeiten unterschiedlich sind.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Druckelemente (4a, 4b) gleiche Durchmesser aufweisen und mit unterschiedlichen Rotationsgeschwindigkeiten angetrieben werden.
  4. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Druckelemente (4a, 4b) unterschiedliche Durchmeser aufweisen und mit gleichen oder unterschiedlichen Rotationsgeschwindigkeiten angetrieben werden.
  5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß nur ein Element (4b) des Druckelementenpaares einen Antrieb aufweist und das andere Element (4a) durch den Druckkontakt angetrieben wird, wobei dieses nicht angetriebene Druckelement (4a) außerdem durch ein System abgebremst wird.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß das Abbremsen des nicht angetriebenen Druckelementes durch ein elektromagnetisches System (18) bewirkt wird.
  7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß jedes Element des Druckelementenpaares als ein Zylinder (4a, 4b) ausgebildet ist.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß jedes Element (4'a, 4'b) des Druckelementenpaares als wenigstens eine Rolle (21a, 22a; 21b, 22b) ausgebildet ist, die mit Freiräumen versehen ist derart, daß diese Freiräume keinen Druck übertragen.
  9. Vorrichtung (1A) nach Anspruch 8, dadurch gekennzeichnet, daß sie mit einer gleichartigen, senkrecht angeordneten Maschine (1B) kombiniert ist und eine Einrichtung (23) für den Transfer von der einen zur anderen Vorrichtung und zum Umlenken um 90° vorgesehen ist, um ein Verschließen an unterschiedlichen, zueinander senkrechten Zonen zu ermöglichen.
  10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß sie mit einer Zuführvorrichtung (3) für die Schemabriefe und einer in Transportrichtung vor der Maschine angeordneten Faltvorrichtung (2) kombiniert ist, um die gefalteten, zu verschließenden Schemabriefe zu erhalten.
  11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß ein Motor (8) vorgesehen ist, um wenigstens eines (4b) der Druckelemente rotierend anzutreiben, während es selbst mit einem der rotierenden Elemente (9) der Faltvorrichtung (2) gekoppelt (10, 11) ist, und dieses oder ein anderes rotierendes Element (13) der Faltvorrichtung und ein rotierendes Element (15) der Zuführvorrichtung (3) ebenfalls derart gekoppelt (14) sind, daß ein einziger Motor (8) den Antrieb der gesamten Einheit ermöglicht.
EP93401287A 1992-05-21 1993-05-18 Druckverschliessvorrichtung für Briefumschläge Expired - Lifetime EP0571281B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9206190 1992-05-21
FR929206190A FR2691408B1 (fr) 1992-05-21 1992-05-21 Machine de scellement par pression pour articles de correspondance.

Publications (2)

Publication Number Publication Date
EP0571281A1 EP0571281A1 (de) 1993-11-24
EP0571281B1 true EP0571281B1 (de) 1996-04-03

Family

ID=9430021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93401287A Expired - Lifetime EP0571281B1 (de) 1992-05-21 1993-05-18 Druckverschliessvorrichtung für Briefumschläge

Country Status (5)

Country Link
EP (1) EP0571281B1 (de)
AT (1) ATE136261T1 (de)
DE (1) DE69302043T2 (de)
ES (1) ES2085122T3 (de)
FR (1) FR2691408B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952007A1 (de) * 1998-04-22 1999-10-27 Daniel Haas Falzmaschine
GB9828608D0 (en) * 1998-12-23 1999-02-17 Printed Forms Equip Pressure sealing apparatus & method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1503822A (fr) * 1966-10-14 1967-12-01 Machine automatique à plier les lettres et à les mettre sous enveloppe
US5397427A (en) * 1989-10-06 1995-03-14 Moore Business Forms, Inc. Pressure seal adhesive system with rollers

Also Published As

Publication number Publication date
ATE136261T1 (de) 1996-04-15
ES2085122T3 (es) 1996-05-16
DE69302043D1 (de) 1996-05-09
FR2691408B1 (fr) 1994-07-01
EP0571281A1 (de) 1993-11-24
FR2691408A1 (fr) 1993-11-26
DE69302043T2 (de) 1996-08-29

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