EP0135520B1 - Vorrichtung zum herstellen von mehrschicht-papiersäcken - Google Patents

Vorrichtung zum herstellen von mehrschicht-papiersäcken Download PDF

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Publication number
EP0135520B1
EP0135520B1 EP84900620A EP84900620A EP0135520B1 EP 0135520 B1 EP0135520 B1 EP 0135520B1 EP 84900620 A EP84900620 A EP 84900620A EP 84900620 A EP84900620 A EP 84900620A EP 0135520 B1 EP0135520 B1 EP 0135520B1
Authority
EP
European Patent Office
Prior art keywords
adhesive
nozzles
shut
roll
rolls
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
Application number
EP84900620A
Other languages
English (en)
French (fr)
Other versions
EP0135520A1 (de
Inventor
Lasse Sandgren
Martti Kutvonen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT84900620T priority Critical patent/ATE30856T1/de
Publication of EP0135520A1 publication Critical patent/EP0135520A1/de
Application granted granted Critical
Publication of EP0135520B1 publication Critical patent/EP0135520B1/de
Expired 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/10—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the liquid or other fluent material being supplied from inside the roller
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/62—Uniting opposed surfaces or edges; Taping by adhesives

Definitions

  • the present invention relates to a device for fabricating multi-layer sacks comprising a plurality of rotatable elongated first rollers positioned parallel and adjacent to each other transverse to the extension of paper webs for applying adhesive on said webs forming the various layers, followed by a rotatable short second roller for applying a lengthwise line of adhesive on one surface of the mult-layer web, followed by a folding station for bottom shut-off flaps, which is followed by at least one third roller for applying adhesive for closing the bottom shut-off flaps.
  • a device of this type is disclosed in US-A-3 350 774, in which conventional adhesive transfer rollers are used for applying adhesive from open adhesive containers via transfer rollers to conventional applicator rollers.
  • the prior art jointing adhesive spreading devices used for the fabrication of multi-layer paper sacks employ open adhesive troughs or gutters from which the adhesive is transferred through scraper-equipped arrays of rolls onto an actual adhesive spreading roll.
  • Such assembly involves, however, several drawbacks, namely in open adhesive gutters, the adhesive sets and toxic solvents evaporate to environment and the production rate is limited since the increase of speed leads to more splashing of glue. Also the repeated need for washing lowers efficiency. Scrapers that are worn out or out of order let through lumps of glue leading to improper joints and increased adhesive consumption.
  • rollers are known per se adhesive spreading rollers with normally closed nozzles on their circumference being connected by adhesive supply passages to an adhesive supply means under pressure and having shut-off means adapted to open by action of an external pressure when the rollers are rotated, the periphery of the elongated first rollers being provided with an axially extending array of such nozzles whereas the periphery of the short second roller is provided with a circumferential array of nozzles.
  • a roll 10 is mounted on a shaft 11 which is rotated by a drive motor 12 through a gear 13.
  • Mounted on shaft 11 is an adhesive dispensing chamber 14 which on the sides and on the inner rim is confined by a core member 15 rotating along with shaft 11.
  • chamber 14 On the outer rim side, chamber 14 is confined by a fixed cylinder jacket 17 packed with seals 16 relative to core member 15. The adhesive is driven by the application of pressure through a hose 18 passed through rim jacket 17.
  • the partially circling array of nozzles 20 is located adjacent the edge of roll 10 and associated with the ends of this array are one or more axially extending arrays of nozzles 21.
  • Nozzles 20, 21 are each individually connected by means of hoses 19 to adhesive dispensing chamber 14.
  • the nozzle assembly shown in Fig. 3 comprises a tubular body 21 which is secured to a roll jacket hole by means of locking nuts 29 and 30. Threaded on the outer end of body 21 is a nozzle cap 22 whose orifice is closed by a shut-off means 23 through the pressure of a spring 24. A rod 25 associated with shut-off means 23 urges another shut-off means 26 against the action of a spring 28 so as to keep shut-off means 26 off a seat surface 27 permitting the passage of adhesive. Shut-off means 26 along with its spring 28 is fitted in a mounting sleeve 31 secured with threads 32 inside said body 21. The top end of sleeve 31 is provided with slots 33 for allowing the passage of adhesive.
  • shut-off means 23 temporarily inwards with a consequence that adhesive is extruding out of the nozzle slot.
  • the amount of adhesive coming out of the nozzle depends on the rotational speed of roll 10, viscosity of the adhesive and the supply pressure applied.
  • the amount of adhesive can be controlled by controlling the supply pressure.
  • the same roll can be provided with a sufficient number of nozzle arrays by means of which the positions and lengths of adhesive joints can be adjusted by only activating the desired arrays of nozzles.
  • the machine can be readily readjusted to make it suitable for the fabrication of e.g. sacks of various sizes.
  • the roll shown in Fig. 1 is intended for producing a patterned adhesive joint for a sealing flap made in the bottom of a sack by folding. The width of a bottom can be varied by deciding to use either one of the axial arrays 21.
  • the bottom end of said nozzle body 21 is provided with a plastic flexible connecting hose 19 whose other end communicates with adhesive dispensing chamber 14.
  • FIG. 4 The application of a jointing adhesive spreading roll of the invention is depicted in Fig. 4.
  • the figure shows diagrammatically an assembly for the fabrication of multi-layer paper sacks or bags.
  • Rolls E are provided with axially extending arrays of nozzles for making transverse joints or seams in the superimposed paper webs that make up the various layers of a paper sack.
  • an axially short sizing or gluing roll C around whose periphery extends an array of adhesive nozzles for producing a lengthwise joint in view of making a hose.
  • the present case deals with the fabrication of sacks sealable at both ends, the filling end of a sack being fitted with a tubular filling valve.
  • a hose or tube is cut into lengths in a manner that the filling ends of two successive sack blanks are at any given moment abutting and at the next position the bottoms are abutting.
  • Such blanks are passed onto two parallel bottom fabricating lines.
  • Each bottom fabricating line is provided with two pairs of rolls A, A, and A, A, on the same axial line.
  • the sealable sack bottoms are folded in a per se known manner and pass each under its own pair of rolls A, At.
  • roll A produces a patterned joint (see Fig. 1) and roll A, produces a straight bottom joint.
  • a roll B applies an adhesive joint for fastening a filling valve tube.
  • Rolls D make adhesive joints at each end of a sack for gluing a bottom flap.
  • the adhesive is supplied from a pump not shown to a manually operated shut-off valve 1, through a manually operated pressure reducer 5 and an electrical adhesive volume controller 4 and further through an electric three-way valve 3 to an adhesive lead-in 2 which is set up as described in connection with Figs. 1 and 2.
  • the adhesive When operating a device of the invention, the adhesive is continuously in a closed space. Setting of the adhesive cannot occur, nor can toxic solvents evaporate to the environment. The way an adhesive is supplied or fed does not limit the rate of production. In order to speed up drying of adhesive joints and, hence, to further increase the rate of production, it is plausible to employ a preheated adhesive. Adhesive consumption is low since the adhesive can be accurately metered in proper positions.

Landscapes

  • Making Paper Articles (AREA)
  • Coating Apparatus (AREA)

Claims (8)

1. Vorrichtung zum Herstellen mehrlagiger Säcke, mit mehreren drehbaren, länglichen ersten Rollen (E), die parallel und benachbart zueinander quer zur Längserstreckung von Papierbahnen angeordnet sind, um Klebstoff auf die Papierbahnen aufzubringen und die verschiedenen Lagen zu bilden, denen eine drehbare kurze zweite Rolle (C) zum Aufbringen einer sich in Längsrichtung erstreckenden Klebstofflinie auf eine Oberfläche der mehrlagigen Bahn nachgeordnet ist, welcher eine Faltstation zum Bilden von Bodenklappen folgt, der wiederum wenigstens eine dritte Rolle (A, A1) zum Aufbringen von Klebstoff zum Schließen der Bodenklappen nachgeordnet ist, dadurch gekennzeichnet, daß die Rollen jeweils auf ihrem Umfang normalerweise geschlossene Düsen (20) aufweisen, die über Klebstoffversorgungsleitungen (19, 14, 18) mit einem unter Druck stehenden Klebstoffreservoir in Verbindung stehen, wobei jede DÜse ein Verschlußmittel (23) aufweist, welches durch einen von der Bahnfläche ausgeübten äußeren Druck zu öffnen ist; wenn sich die Rollen (E, C, A, A1) drehen, und wobei der Umfang der länglichen ersten Rollen (E) mit einer axialen Reihe von Düsen (20) versehen ist, während die kurze zweite Rolle (C) auf ihrem Umfang mit einer Umfangsreihe von Düsen (20) versehen ist.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß auf derselben Axiallinie wenigstens ein Paar Bodenklappenrollen (A, A,) vorgesehen ist, wobei die Klebstoff abgebenden Düsen einer Rolle (A) eine gemusterte Verbindung bilden und die andere Rolle (A,) eine gerade bzw. linienförmige Verbindung.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Station zum Bilden der Bodenklappen zwei Rollenpaare (A, A,; A, A,) aufweist, von denen jedes Paar einem Sackende zugeordnet ist, und daß zwischen einem der Rollenpaare (A, A,) und der bodenklappenbildenden Rolle (D) eine Rolle (B) zur Bildung eines Ventils vorgesehen ist.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß zum Bilden der Bodenklappen zwei parallele Produktionslinien vorgesehen sind.
5. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Umfang der axial kurzen Rolle (C), der bodenklappenbildenden Rollen (A, A1) und der Rolle (D) zwecks Klebung einer Bodenklappe mit einer Reihe von Klebstoffdüsen versehen ist, die sich teilweise oder vollständig um den Umfang erstrecken.
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß wenigstens einige der bodenklappenbildenden Rollen (A, A1, D) eine Reihe von Klebstoffdüsen (20) an einem Rollenrand aufweisen, und daß mit dieser Reihe eine oder mehrere sich axial erstreckende Reihen von Düsen (20) verbunden sind.
7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß zum Steuern der Positionen und Längen von Klebstoffverbindungen durch Aktivieren oder Deaktivieren von Düsen (20, 21) die Düsen (20, 21) mit Düsenkörpern (121) und DÜsenkappen (22) versehen sind, die jeweils von den Düsenkörpern (121) entfernbar sind, welche mit einem Schließmittel (26) versehen sind, mittels dessen die Klebstoffleitung geschlossen zu halten ist, wenn eine Düsenkappe (22) entfernt ist.
8. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß jede Rolle (10) mit einer Klebstoff-Abgabekammer (14) verbunden ist, deren äußerer Umfang durch einen befestigten Umfangsflansch (17) und deren innerer Umfang durch ein Nabenteil (15) gebildet ist, welche sich mit der Rollenwelle (11) drehen, und daß der Umfangsflansch (17) mit einer Klebstoffverbindungsleitung (18) verbunden ist und die Klebstoff-Abgabekammer (14) mit jeder Düse (20, 21) durch individuelle Rohre oder Schläuche (19) verbunden ist, die mit dem Nabenteil (12) verbunden sind.
EP84900620A 1983-02-04 1984-02-03 Vorrichtung zum herstellen von mehrschicht-papiersäcken Expired EP0135520B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84900620T ATE30856T1 (de) 1983-02-04 1984-02-03 Vorrichtung zum herstellen von mehrschichtpapiers|cken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI830385 1983-02-04
FI830385A FI71678C (fi) 1983-02-04 1983-02-04 Anordning foer utbredning av foglim pao pappersyta.

Publications (2)

Publication Number Publication Date
EP0135520A1 EP0135520A1 (de) 1985-04-03
EP0135520B1 true EP0135520B1 (de) 1987-11-19

Family

ID=8516710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84900620A Expired EP0135520B1 (de) 1983-02-04 1984-02-03 Vorrichtung zum herstellen von mehrschicht-papiersäcken

Country Status (5)

Country Link
EP (1) EP0135520B1 (de)
JP (1) JPS60500407A (de)
DE (1) DE3467514D1 (de)
FI (1) FI71678C (de)
WO (1) WO1984003058A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3823179C1 (de) * 1988-07-08 1989-10-05 Georg 5620 Velbert De Krebs
ITMI20040813A1 (it) * 2004-04-26 2004-07-26 Cielle Imballaggi Di Tommaso Loreto Srl Fogli per formare mediante termosaldatura sacchi o buste di carta

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2590339A (en) * 1949-05-06 1952-03-25 Minkow Robert Machine for applying glue in stripes to sheet material
US2753768A (en) * 1953-05-12 1956-07-10 St Regis Paper Co Method and apparatus for application of valve sleeves during tubing operation
US2818003A (en) * 1953-09-03 1957-12-31 St Regis Paper Co Apparatus for making a multi-ply valve bag having an extended intermediate valve ply
US2791160A (en) * 1954-02-15 1957-05-07 Crown Zellerbach Corp Method of making valve bags
US2895387A (en) * 1956-12-07 1959-07-21 Arkell And Smiths Multiply bag with supplemental sleeve
US3332324A (en) * 1964-02-20 1967-07-25 Kalle Ag Method and apparatus for the manufacture of a combined web of material suitable for the manufacture of pouches
US3530774A (en) * 1967-12-13 1970-09-29 Hoerner Waldorf Corp Method of making a flat bottom multi-ply bag
DK122580B (da) * 1970-04-06 1972-03-20 Nordan V Ronneberg H Påføringsorgan for lim eller til lignende anvendelser.

Also Published As

Publication number Publication date
JPS60500407A (ja) 1985-03-28
FI71678C (fi) 1987-02-09
FI830385A0 (fi) 1983-02-04
FI830385L (fi) 1984-08-05
WO1984003058A1 (en) 1984-08-16
EP0135520A1 (de) 1985-04-03
DE3467514D1 (en) 1987-12-23
FI71678B (fi) 1986-10-31

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