EP0160725A1 - Sacs à valve ainsi que dispositif et procédé pour fermer des sacs à valve - Google Patents

Sacs à valve ainsi que dispositif et procédé pour fermer des sacs à valve Download PDF

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Publication number
EP0160725A1
EP0160725A1 EP84105278A EP84105278A EP0160725A1 EP 0160725 A1 EP0160725 A1 EP 0160725A1 EP 84105278 A EP84105278 A EP 84105278A EP 84105278 A EP84105278 A EP 84105278A EP 0160725 A1 EP0160725 A1 EP 0160725A1
Authority
EP
European Patent Office
Prior art keywords
valve
adhesive
bag
closing station
adhesive application
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.)
Withdrawn
Application number
EP84105278A
Other languages
German (de)
English (en)
Inventor
Hans Bäuscher
Rainer Zartner
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.)
Walter Duerbeck Papiersackfabriken & Co KG GmbH
Original Assignee
Walter Duerbeck Papiersackfabriken & Co KG 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 Walter Duerbeck Papiersackfabriken & Co KG GmbH filed Critical Walter Duerbeck Papiersackfabriken & Co KG GmbH
Priority to EP84105278A priority Critical patent/EP0160725A1/fr
Priority to EP85902515A priority patent/EP0182832B1/fr
Priority to AT85902515T priority patent/ATE32586T1/de
Priority to PCT/EP1985/000215 priority patent/WO1985005341A1/fr
Priority to DE8585902515T priority patent/DE3561645D1/de
Priority to AU44010/85A priority patent/AU4401085A/en
Priority to NO853792A priority patent/NO853792L/no
Publication of EP0160725A1 publication Critical patent/EP0160725A1/fr
Priority to FI854758A priority patent/FI78270C/fi
Priority to DK596685A priority patent/DK596685D0/da
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
    • B65B7/025—Closing valve bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/14—Valve bags, i.e. with valves for filling
    • B65D31/142—Valve bags, i.e. with valves for filling the filling port being formed by folding a flap connected to a side, e.g. block bottoms

Definitions

  • the invention relates to a system according to the preamble of claim 1, a valve bag according to the preamble of claim 13 and a method according to the preamble of claim 15.
  • valve sacks according to the invention are particularly advantageous, which can consist of paper or polyethylene and have an outer valve that is surmounted by a cover sheet led out underneath or has an outer, shorter tab, of which an inner, protrudes longer tab.
  • the heart of the system according to the invention is a closing station, in which the laterally protruding part of the outer valve is first edged up when the filled sack runs in, whereupon an adhesive zone of the sack bottom is provided with at least one adhesive track and the outer valve is pressed onto it with the protruding part. The whole thing takes place automatically in a controllable cycle.
  • the closing station has a preferably vertically movable adhesive application device and a pressing device.
  • This is in particular an elastic roller or natural brush, which is movable transversely to the driven roller conveyor, on which the filled sacks are positioned and brought up and are conveyed away after the valve has been closed.
  • a preferably pneumatic drive with an electric-pneumatic control effects the individual work cycles through the organs mentioned; a sensor, for example in the form of a wiper contact, controls the movement of the adhesive application device.
  • a heating device for a hot-melt adhesive can be connected to the line with this, unless a cold adhesive is used.
  • a folding bar if necessary movable sliding surfaces and lateral guides as well as a drain cap, which is swiveled down and serves as a stop for the incoming bag, are important.
  • At least some lateral guide rollers can be adjustable in groups or as a guide belt.
  • the valve bag 10 shown partially and schematically in FIG. 1 has an outer valve 14 on one side on the bag bottom 12. Below this, a cover sheet 15 is led out laterally, which preferably extends to the side edge 20 of the folded, empty valve bag 10. Optionally or additionally, a shorter, outer tab 16 and an inner, longer tab 18 can be provided on the outer valve 14. If the sack 10 is filled, the side edge 20 disappears in the fold plane 22, which then also laterally delimits the bottom 12. Following the folding plane 22, the base 12 according to the invention has an adhesive zone 24.
  • FIGS. 2a to 2d The method according to the invention for closing the external valve 14 is schematically illustrated in FIGS. 2a to 2d.
  • the filled valve sack 10, which enters a closing station 40 (FIG. 3), is delimited laterally by the folding plane 22 and at the end by the bottom 12, the outer valve 14 projecting laterally (FIG. 2a).
  • the outer valve 40 together with the overhang (15 or 18) is folded up (FIG. 2b).
  • at least one adhesive track 26 is applied to the adhesive zone 24 (FIG. 2c).
  • the external valve 14 is completely folded over by a pressure device (46, FIGS. 3 and 4a) and pressed together with its overhang (15 or 18) against the bag bottom 12 (FIG. 2d).
  • the invention provides a system which is shown schematically in FIG. 3 and is designated 30 overall. It has a driven roller conveyor 32 with a laterally arranged feed device 34 for filled valve bags. Like typical fasteners, bearings and the like, these are not shown for the sake of clarity.
  • Lateral guides 36 and at least one folding bar 38 which is fixed at an adjustable height above the roller conveyor 32 parallel to this, serve to position the
  • Valve bags which reach the roller conveyor 32 in the direction of the arrow and are conveyed through this into the closing station 40.
  • a drain cap 60 which, when swiveled down, serves as a stop for the valve bag which has run in and brings it to a standstill (FIG. 4b).
  • the closing station 40 has an adhesive application head 42, to which a sensor in the form of a wiper contact 52 is assigned. If a hot melt adhesive is used, a schematically indicated line from a heating device 44 leads the adhesive to the application head 42. This has at least one nozzle arranged in the conveying direction of the roller conveyor 32, in order to apply the adhesive track 26 on the adhesive zone 24 of the bag bottom 12 next to that in Running in to cause edged external valve 14.
  • the closing station 40 contains guide rollers 54 on both sides, each of which can be freely rotatably mounted in a (schematically indicated) frame. At least one group of the lateral guide rollers 54, as illustrated in FIG. 3 below, can be moved laterally in the direction of the arrow by means of, for example, a pneumatically actuated actuating device 58 in order to achieve the best possible adaptation to the format of the filled valve bags.
  • Their inlet is supported by a preferably pivotable sliding plate 56, which is arranged upstream of the closing station 40 and at the same time brings about or facilitates the positioning of each individual valve bag.
  • the adhesive application device (which is shown in a middle position in FIG. 4a) moves under the control of the wiper contact 52 from top to bottom along the bag bottom, expediently two adhesive traces 26 are applied in the adhesive zone 24. It is also possible and provided according to the invention to use a coiled or zigzag-shaped adhesive track 26 with a larger width of e.g. Apply 2 to 6 cm. As soon as the adhesive application device 42 has started up again, the pressure roller or brush 46 is pushed out of the row of lateral guide rollers 54, the outer valve 14 including the overhang (15 or 18) being pressed against the bag bottom 12.
  • wiper contact 52 another control element for the adhesive application device 42 can also be present. It is important that a pulse generator is provided for their movement and for spraying out the adhesive.
  • a control device (not shown) can be provided to monitor the state of the adhesive and / or the working position (s) of the adhesive application device 42.
  • the bag bottom 12 in the adhesive zone 24 can be considered to provide the bag bottom 12 in the adhesive zone 24 with a dry adhesive layer and to replace the operation of applying the adhesive by means of the device 26 by heat-setting pressure, for example by means of a pressure roller. It is also possible to shorten a two-component adhesive at the adhesive point Apply curing time when it is important to effect the setting particularly quickly and safely. If a roller is used as the pressing device 46, an elastic support, for example made of foam rubber, is provided; otherwise a driven rotary brush with natural bristles is preferred.
  • nozzles with a plug-in are suitable, which are inserted into the valve 14 and spread apart therein.
  • a slight protrusion on the outer valve 14 is preferable because this makes handling easier.
  • the outer valve 14 can be extended inwards, i.e. can be combined with an internal valve, so to speak.
  • controller 50 there are in particular adjustable clock generators for the pneumatic drives 48.
  • the time requirement of, for example, 2 s in the closing station 40 specifies the cycle in which the valve bags 10 are fed in, closed and transported away. It is also possible and provided according to the invention that two filling lines start a common closing station.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Package Closures (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Bag Frames (AREA)
  • Fertilizing (AREA)
  • Catching Or Destruction (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Closing Of Containers (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
EP84105278A 1984-05-10 1984-05-10 Sacs à valve ainsi que dispositif et procédé pour fermer des sacs à valve Withdrawn EP0160725A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP84105278A EP0160725A1 (fr) 1984-05-10 1984-05-10 Sacs à valve ainsi que dispositif et procédé pour fermer des sacs à valve
EP85902515A EP0182832B1 (fr) 1984-05-10 1985-05-09 Installation et procede pour fermer des sacs a valves
AT85902515T ATE32586T1 (de) 1984-05-10 1985-05-09 Anlage und verfahren zum verschliessen von ventilsaecken.
PCT/EP1985/000215 WO1985005341A1 (fr) 1984-05-10 1985-05-09 Sacs a valves ainsi qu'une installation et un procede pour fermer des sacs a valves
DE8585902515T DE3561645D1 (en) 1984-05-10 1985-05-09 Installation and process for closing valve bags
AU44010/85A AU4401085A (en) 1984-05-10 1985-05-09 Ventilsacke sowie anlage und verfahren zum verschliessen von ventilsacken
NO853792A NO853792L (no) 1984-05-10 1985-09-26 Ventilsekk og anlegg og fremgangsmaate for lukking av ventilsekker.
FI854758A FI78270C (fi) 1984-05-10 1985-12-02 Anordning och foerfarande foer tillslutning av ventilsaeckar foersedda med bottenventil.
DK596685A DK596685D0 (da) 1984-05-10 1985-12-20 Anlaeg og fremgangsmaade til lukning af ventilsaekke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84105278A EP0160725A1 (fr) 1984-05-10 1984-05-10 Sacs à valve ainsi que dispositif et procédé pour fermer des sacs à valve

Publications (1)

Publication Number Publication Date
EP0160725A1 true EP0160725A1 (fr) 1985-11-13

Family

ID=8191934

Family Applications (2)

Application Number Title Priority Date Filing Date
EP84105278A Withdrawn EP0160725A1 (fr) 1984-05-10 1984-05-10 Sacs à valve ainsi que dispositif et procédé pour fermer des sacs à valve
EP85902515A Expired EP0182832B1 (fr) 1984-05-10 1985-05-09 Installation et procede pour fermer des sacs a valves

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP85902515A Expired EP0182832B1 (fr) 1984-05-10 1985-05-09 Installation et procede pour fermer des sacs a valves

Country Status (8)

Country Link
EP (2) EP0160725A1 (fr)
AT (1) ATE32586T1 (fr)
AU (1) AU4401085A (fr)
DE (1) DE3561645D1 (fr)
DK (1) DK596685D0 (fr)
FI (1) FI78270C (fr)
NO (1) NO853792L (fr)
WO (1) WO1985005341A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8805854U1 (de) * 1988-05-03 1988-06-16 Teutrine, Annemarie, 4740 Oelde Vorrichtung zum Verschließen eines Ventilsacks
WO2002087977A2 (fr) * 2001-05-02 2002-11-07 Hood Packaging Corporation Sac a valve scellable et procede de fabrication d'un sac a valve scellable

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE928930C (de) * 1949-06-27 1955-06-13 Richard Mundhenke Als Kreuzbodenventilsack ausgebildeter Warenbeutel fuer Haushaltspackungen
DE1194313B (de) * 1957-09-10 1965-06-03 Continental Oil Co Selbsttaetige Beleim- und Verschliessvorrichtung fuer Ventilsaecke
DE1903992A1 (de) * 1968-02-09 1970-01-08 Billeruds Ab Vorrichtung zum Verschliessen von Ventilsaecken
UST941002I4 (en) * 1974-06-28 1975-12-02 Apparatus for automatically sealing valve bags
DE2548091A1 (de) * 1974-10-30 1976-05-06 Wavin Bv Verfahren zum herstellen von kunststoff-saecken
DE2640828A1 (de) * 1975-10-01 1977-04-07 Emhart Ind Vorrichtung zum auftragen von klebstoff
FR2442186A1 (fr) * 1978-11-27 1980-06-20 Ocme Dispositif de collage d'un rabat de boites de carton, sur une face frontale de celles-ci pendant leur transport continu

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE928930C (de) * 1949-06-27 1955-06-13 Richard Mundhenke Als Kreuzbodenventilsack ausgebildeter Warenbeutel fuer Haushaltspackungen
DE1194313B (de) * 1957-09-10 1965-06-03 Continental Oil Co Selbsttaetige Beleim- und Verschliessvorrichtung fuer Ventilsaecke
DE1903992A1 (de) * 1968-02-09 1970-01-08 Billeruds Ab Vorrichtung zum Verschliessen von Ventilsaecken
UST941002I4 (en) * 1974-06-28 1975-12-02 Apparatus for automatically sealing valve bags
DE2548091A1 (de) * 1974-10-30 1976-05-06 Wavin Bv Verfahren zum herstellen von kunststoff-saecken
DE2640828A1 (de) * 1975-10-01 1977-04-07 Emhart Ind Vorrichtung zum auftragen von klebstoff
FR2442186A1 (fr) * 1978-11-27 1980-06-20 Ocme Dispositif de collage d'un rabat de boites de carton, sur une face frontale de celles-ci pendant leur transport continu

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8805854U1 (de) * 1988-05-03 1988-06-16 Teutrine, Annemarie, 4740 Oelde Vorrichtung zum Verschließen eines Ventilsacks
WO2002087977A2 (fr) * 2001-05-02 2002-11-07 Hood Packaging Corporation Sac a valve scellable et procede de fabrication d'un sac a valve scellable
WO2002087977A3 (fr) * 2001-05-02 2003-02-27 Hood Packaging Corp Sac a valve scellable et procede de fabrication d'un sac a valve scellable

Also Published As

Publication number Publication date
EP0182832A1 (fr) 1986-06-04
FI78270C (fi) 1989-07-10
DK596685A (da) 1985-12-20
FI854758A0 (fi) 1985-12-02
WO1985005341A1 (fr) 1985-12-05
FI854758A (fi) 1985-12-02
NO853792L (no) 1985-12-05
EP0182832B1 (fr) 1988-02-24
DK596685D0 (da) 1985-12-20
FI78270B (fi) 1989-03-31
DE3561645D1 (en) 1988-03-31
ATE32586T1 (de) 1988-03-15
AU4401085A (en) 1985-12-13

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

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Effective date: 19850824

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17Q First examination report despatched

Effective date: 19860707

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18D Application deemed to be withdrawn

Effective date: 19870421

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BAEUSCHER, HANS

Inventor name: ZARTNER, RAINER