EP0804971A1 - Gummierverfahren - Google Patents

Gummierverfahren Download PDF

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Publication number
EP0804971A1
EP0804971A1 EP97107100A EP97107100A EP0804971A1 EP 0804971 A1 EP0804971 A1 EP 0804971A1 EP 97107100 A EP97107100 A EP 97107100A EP 97107100 A EP97107100 A EP 97107100A EP 0804971 A1 EP0804971 A1 EP 0804971A1
Authority
EP
European Patent Office
Prior art keywords
support
adhesive material
given
nozzle
traveling direction
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.)
Ceased
Application number
EP97107100A
Other languages
English (en)
French (fr)
Inventor
Fulvio Boldrini
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.)
GD SpA
Original Assignee
GD SpA
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 GD SpA filed Critical GD SpA
Publication of EP0804971A1 publication Critical patent/EP0804971A1/de
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
    • B05C5/0212—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles

Definitions

  • the present invention relates to a gumming method.
  • the present invention relates to a gumming method for applying adhesive material to a number of given surface portions of a support, in particular a paper support or similar.
  • the present invention may be used to advantage on packing machines, to which the following description refers purely by way of example.
  • Packing machines require the application of adhesive material to given portions of sheets, e.g. sheets or blanks of wrapping material, which are folded into containers and must be stabilized in the folded position, or to given portions of sheets comprising, for example, labels or revenue stamps, which are simply connected to a support comprising, for example, a paper support.
  • sheets e.g. sheets or blanks of wrapping material
  • a support comprising, for example, a paper support.
  • packing machines are known to feature a gumming unit located along the path of the sheets to be gummed, and comprising gumming devices in the form of spray guns with nozzles for applying adhesive material to given gumming portions of each sheet.
  • the above known unit is unsuitable for forming on the sheets substantially continuous gummed strips crosswise to and of relatively small size in the traveling direction of the sheets. That is, on account of the transverse dimensions of the spray guns, it is substantially impossible to align the nozzles of the spray guns in a direction crosswise to the traveling direction of the sheets, and position the nozzles close enough to one another to obtain a substantially continuous gummed strip of relatively large transverse dimensions. It is always possible, of course, to obtain a continuous transverse strip by increasing the distance between the gumming unit and the sheets so as to increase the section of the spray emitted by each nozzle and impinging on the sheets. In this case, however, the transverse dimensions of the strip are invariably unacceptable.
  • gumming devices of the above type are known to be offset with respect to one another both in the traveling direction of the sheets and in a direction perpendicular to the traveling direction, so that the distance, measured crosswise to the traveling direction of the sheets, between the material sprayed on to the sheets by the various nozzles is independent of the transverse dimensions of the gumming devices.
  • Such a method requires the use of a large number of gumming devices, and relatively complex, high-cost control systems for sequentially controlling the gumming devices in time with the travel of the sheets to be gummed.
  • a gumming method for applying adhesive material to a number of given surface portions of a support, in particular a paper support or similar, traveling at a given speed in a given traveling direction, at least a first of said portions being an elongated portion extending perpendicularly to said traveling direction; the method involving the use of devices for applying adhesive material, and each comprising a respective nozzle for emitting a respective given quantity of adhesive material in time with the passage, past the nozzle, of a respective said given portion of said support; and at least a first of said nozzles comprising an elongated output; characterized in that said first nozzle is positioned with said elongated output perpendicular to said traveling direction and along a path of said first portion, and is activated for a relatively short time to coat the first portion.
  • said output is defined by an end outlet of said first nozzle; said outlet being located at such a distance from said support as to interfere with the adhesive material deposited on the support by said first nozzle, and to spread the adhesive material on said first portion.
  • the above method preferably involves the use of relatively pasty adhesive material.
  • Number 1 in Figure 1 indicates a sheet - e.g. a semi-rigid blank 1a ( Figure 4) from which to form rigid hinged-lid packets of cigarettes; or a soft blank 1b of wrapping material for packets or cartons of cigarettes; or a label or revenue stamp (not shown) for application to a support, e.g. of paper material - which is fed by known means (not shown) in a direction F and along a path P, one portion of which extends through a gumming station 2 where portions of sheet 1 ( Figures 4 and 5) are coated with adhesive material 3.
  • a sheet - e.g. a semi-rigid blank 1a ( Figure 4) from which to form rigid hinged-lid packets of cigarettes; or a soft blank 1b of wrapping material for packets or cartons of cigarettes; or a label or revenue stamp (not shown) for application to a support, e.g. of paper material - which is fed by known means (not shown) in a direction F and along a path P,
  • both blanks 1a and 1b are substantially in the form of an elongated rectangle, and comprise, on one surface, a number of gumming portions 4 also normally in the form of an elongated rectangle. More specifically, each blank 1a, 1b comprises portions 4a and 4b respectively parallel and crosswise to a respective longitudinal axis (not shown).
  • blanks 1a and 1b will be assumed to be fed in a direction F crosswise to their longitudinal axis, i.e. crosswise to respective portions 4a.
  • Sheet 1 is gummed by a gumming unit 5 located at station 2, and comprising a frame 6 fitted in a fixed position to a supporting wall and in turn fitted with applying devices 7 and 8 comprising respective nozzles 9 and 10 maintained facing path P.
  • nozzle 9 comprises one hole 11 for applying material 3; and applying device 8 is of the type marketed, for example, by ITW DYNATEC by the name of "DYNA COLD 3", the nozzle 10 of which comprises an end outlet 12 having an elongated output 12a defined, in the Figure 2 embodiment, by a number of aligned holes 13, or, as shown in Figure 3, by an elongated opening 14.
  • applying device 8 is mounted along the path traveled by a respective portion 4a as sheet 1 is fed in direction F along path P, and is positioned with outlet 12 substantially contacting path P, and with elongated output 12a oriented crosswise to direction F.
  • Applying devices 7 and 8 comprise respective hollow bodies 15 and 16 housing in known manner respective known valve elements 17 and 18 connecting respective nozzles 9 and 10 to a hydraulic circuit 19 forming part of unit 5.
  • Circuit 19 comprises a tank 20 for a given quantity of adhesive material 3; a supply pump 21; a supply conduit 22 extending from tank 20 to hollow bodies 15 and 16 and through pump 21; and a control device 23.
  • Device 23 in turn comprises a central control unit 24; a sensor 25 connected to central control unit 24 to detect the passage of sheet 1 at a detection point immediately downstream from station 2 in direction F; and a transmitter 26, normally an encoder, connected to and for supplying central control unit 24 with data relative to the movement of sheet 1 along path P.
  • Central control unit 24 controls opening and closing of valve elements 17 and 18 of respective applying devices 7 and 8, and is so programmed as to provide for prolonged opening of valve element 17 of applying device 7 to apply adhesive material 3 to a respective portion 4b extending parallel to traveling direction F, and for substantially instantaneous, i.e. relatively short-term, opening of valve element 18 of applying device 8 to apply adhesive material 3 to a respective portion 4a extending, as stated, crosswise to and of relatively small size in direction F.
  • outlet 12 interferes with adhesive material 3 issuing from output 12a, so as to "spread" the material over respective portion 4a and so ensure substantially complete, even coverage of portion 4a.

Landscapes

  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Coating Apparatus (AREA)
  • Making Paper Articles (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP97107100A 1996-04-30 1997-04-29 Gummierverfahren Ceased EP0804971A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96BO000226A IT1285910B1 (it) 1996-04-30 1996-04-30 Metodo di gommatura
ITBO960226 1996-04-30

Publications (1)

Publication Number Publication Date
EP0804971A1 true EP0804971A1 (de) 1997-11-05

Family

ID=11341362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97107100A Ceased EP0804971A1 (de) 1996-04-30 1997-04-29 Gummierverfahren

Country Status (3)

Country Link
EP (1) EP0804971A1 (de)
CN (1) CN1166383A (de)
IT (1) IT1285910B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0920919A1 (de) * 1997-12-08 1999-06-09 Focke & Co. (GmbH & Co.) Klappschachtel für Zigaretten sowie Verfahren und Vorrichtung zum Beleimen von Verpackungsmaterial

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100404148C (zh) * 2005-01-25 2008-07-23 刘清松 塑胶板材、片材和薄膜的线涂布方法及设备
CN103114709B (zh) * 2013-03-12 2016-03-02 金陵科技学院 能快速粘接建筑保温紧固件的涂胶装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156398A (en) * 1977-08-10 1979-05-29 Nordson Corporation Apparatus for applying a hot melt adhesive pattern to a moving substrate
EP0329829A2 (de) * 1988-02-17 1989-08-30 ITW Dynatec GmbH Klebetechnik Vorrichtung zum flächigen Auftragen von Leim oder dergleichen
EP0422399A2 (de) * 1989-10-10 1991-04-17 Nordson Corporation T-förmige Düse mit mehreren Auslassöffnungen
WO1993024239A1 (en) * 1992-06-04 1993-12-09 Nordson Nederland B.V. Method and device for applying liquid material, in particular a hot melt, by means of a sequentially operating applicator to a substrate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156398A (en) * 1977-08-10 1979-05-29 Nordson Corporation Apparatus for applying a hot melt adhesive pattern to a moving substrate
EP0329829A2 (de) * 1988-02-17 1989-08-30 ITW Dynatec GmbH Klebetechnik Vorrichtung zum flächigen Auftragen von Leim oder dergleichen
EP0422399A2 (de) * 1989-10-10 1991-04-17 Nordson Corporation T-förmige Düse mit mehreren Auslassöffnungen
WO1993024239A1 (en) * 1992-06-04 1993-12-09 Nordson Nederland B.V. Method and device for applying liquid material, in particular a hot melt, by means of a sequentially operating applicator to a substrate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0920919A1 (de) * 1997-12-08 1999-06-09 Focke & Co. (GmbH & Co.) Klappschachtel für Zigaretten sowie Verfahren und Vorrichtung zum Beleimen von Verpackungsmaterial
US6409646B1 (en) 1997-12-08 2002-06-25 Focke & Co. (Gmbh & Co) Hinge-lid box for cigarettes and process and apparatus for gluing packaging material

Also Published As

Publication number Publication date
ITBO960226A0 (it) 1996-04-30
IT1285910B1 (it) 1998-06-26
CN1166383A (zh) 1997-12-03
ITBO960226A1 (it) 1997-10-30

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