EP0761532A2 - Dispositif pour fabriquer des sachets d'emballages - Google Patents

Dispositif pour fabriquer des sachets d'emballages Download PDF

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Publication number
EP0761532A2
EP0761532A2 EP96113687A EP96113687A EP0761532A2 EP 0761532 A2 EP0761532 A2 EP 0761532A2 EP 96113687 A EP96113687 A EP 96113687A EP 96113687 A EP96113687 A EP 96113687A EP 0761532 A2 EP0761532 A2 EP 0761532A2
Authority
EP
European Patent Office
Prior art keywords
bags
filling
packaging material
bag
material web
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Withdrawn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
EP96113687A
Other languages
German (de)
English (en)
Other versions
EP0761532A3 (fr
Inventor
Herbert Dipl.-Ing. Stotkiewitz (Fh)
Willi Dipl.-Ing. Krieger (Fh)
Werner Schulz
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0761532A2 publication Critical patent/EP0761532A2/fr
Publication of EP0761532A3 publication Critical patent/EP0761532A3/fr
Withdrawn legal-status Critical Current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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
    • 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
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/02—Machines characterised by the incorporation of means for making the containers or receptacles

Definitions

  • the invention is based on a device for producing bag packs from a heat-sealable packaging material according to the preamble of claim 1.
  • a device for producing bag packs from a heat-sealable packaging material according to the preamble of claim 1.
  • the top and bottom closures and the longitudinal seam of the bag which is preferably formed from a composite packaging material with a heat-sealable inner layer, are passed through targeted transfer of heat and pressure. All sealing seams are given the same strength.
  • the head closure seam should be designed as a peel seam, that is to say it can be pulled on by hand. For this reason, when the packaging material sheet, which is delivered in storage rolls for the manufacture of pouch packs, was conditioned, a peel adhesive layer was applied with the print on the inside of the sheet in the area of the head closure.
  • the device according to the invention for producing pouch packs with the characterizing features of claim 1 has the advantage that the peel adhesive layer is applied to the packaging material web in width and shape on the inner layer of the packaging material web or the cut-off cut from it exactly on the spot which later, after filling the bag formed therefrom, a narrow but nevertheless tight, easily openable head closure seam is formed. This also has the advantage that a minimal amount of adhesive is used.
  • FIG. 1 shows a device for producing bag packs schematically in a side view
  • FIG. 2 shows a part of a packaging material web with adhesive application in a top view
  • FIGS. 3a to 3b show a filled bag in various stages of closure formation in a diagrammatic view.
  • a web 1 made of a heat-sealable packaging material and having a print image that is repeated in sections is moved by a pair of preferred rollers 11 via a deflecting roller 12 in time with the device to form one Bag 3 required, the length corresponding to the printed image gradually withdrawn from a supply roll, not shown.
  • a cross cutter 13 cuts the required length from the web 1 as a blank 2.
  • the length of the web 1 or of the blank 2 required per working cycle is controlled by a blank length control 14, which supplies a print mark scanning device 15 with signals that are generated when a print mark is detected in the print image of the web 1.
  • the blank length control 14 controls the drive for the pair of preferred rollers 11 accordingly.
  • the cut length control 14 is set to convey a constant length in each case.
  • the blank 2 separated from the web 1 is fed from a pair of conveyor rollers 17 to a bag-forming device 18.
  • bag forming device 18 the blank 2 is first folded into a sleeve and this is fixed with a longitudinal seam. A bottom is then folded at one end of the sleeve and sealed with a transverse seam.
  • the bags 3, which are formed with a flat bottom, are transferred upright one after the other to a horizontal conveying device 21, which feeds the bags 3 with drivers 22, 23 first to a filling device 25 and then to a closing device 26 in cycles.
  • the filling device 25 fills each bag 3 with a bulk quantity of a certain weight. Since the specific weight of the goods is subject to fluctuations from batch to batch, the filling height a of the quantity of goods in the bags 3 also fluctuates (FIG. 3a).
  • a carrier rail 31 assigned to the conveying device 21, on which the filled bags 3 stand and slide during conveying is adjusted by means of an interlocking device 32 to the required altitude depending on the filling height a.
  • the correct height is determined by a filling level sensing device 33, preferably a photocell, which is arranged on a station of the step-by-step conveying device 21 in front of the closing device 26 in register with the carrier rail 31 above the conveying path of the bags 3.
  • Deviations in the filling height a of the bags 3 from the set height position are supplied by the filling height sensing device 33 as electrical signals to a control circuit 35 which controls the signal box 32 to raise or lower accordingly.
  • a control circuit 35 which controls the signal box 32 to raise or lower accordingly.
  • the folding tool 27 of the closing device 26 first folds the two narrow sides 5 of the protrusion 4 of the bag 3 protruding beyond the filling level b in a V-shape (FIG. 3b) and guides the two broad sides 6 against one another, their part folded over the filling level b, the part near the edge of the inside against the inside, including the V-shaped narrow sides 5, against one another, so that a fin 7 projecting upwards is formed (FIG. 3c).
  • This fin 7 is sealed at the next station by the sealing tool 28 by transferring pressure and heat to a narrow area by means of heated tongs, so that after cooling a tight sealing seam 8 is formed in which the inside of the broad sides 6 and V-shaped narrow sides 5 of the protrusion 4 are connected to one another by adhesion.
  • an adhesive in the area of the sealing seam 8 which enables peeling applied.
  • This adhesive is applied as a thin layer in the form of a narrow strip 9 extending transversely to the web direction in the region of the feed of the packaging material web 1 on the inside thereof.
  • an adhesive application device 41 with a slot die 42 is arranged above the web 1 between the pair of preferred rollers 11 and the cross cutter 13, through which adhesive 1 is sprayed onto a strip-shaped area of the inside of the web 1 when the web 1 is at a standstill.
  • the strip 9 preferably has a width which essentially corresponds to the width of the sealing seam 8 on the fin 7 of the top closure of the bag 3.
  • the applicator 41 is positioned so that the Adhesive strip 9 on the filled bag 3 has a constant distance c from the filling level b (FIG. 3a), so that the sealing seam 8 is at the same distance from the shoulders of the finished bag pack. Since the filling height b of the bags 3 fluctuates within a certain range due to the changing specific weight of the filling material, the placement of the adhesive strip 9 on the web 1 depends on the filling height b, which is determined by the filling level sensing device 33, by the control circuit 35 set.
  • the adhesive application device 41 is arranged in parallel above the web 1 in an adjustable manner in the longitudinal direction thereof and connected to an interlocking 43.
  • the joint control of the two signal boxes 32 and 43 of the adhesive applicator 41 and the carrier rail 31 ensures that the filled bags 3 are fed to the closing device 26 at a high position, so that the sealing tool 28 acts on the adhesive strip 9 in a covering manner, whereby a tight sealing seam 8 is generated.
  • the fin 7, which projects vertically upwards, of the closure of the pouches 3 is preferably folded over onto a shoulder of the finished package and fixed with a label or by means of adhesive points applied. In order to keep the height of the fin 7 constant, it is possible to separate the upper edge strip by trimming. Before the sealing seam 8 is produced on the fin 7 to protect the packaged goods, it is also possible to evacuate the air contained therein and possibly introduce a protective gas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP96113687A 1995-08-31 1996-08-27 Dispositif pour fabriquer des sachets d'emballages Withdrawn EP0761532A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19532120 1995-08-31
DE1995132120 DE19532120C1 (de) 1995-08-31 1995-08-31 Vorrichtung zum Herstellen von Beutelpackungen

Publications (2)

Publication Number Publication Date
EP0761532A2 true EP0761532A2 (fr) 1997-03-12
EP0761532A3 EP0761532A3 (fr) 1997-06-04

Family

ID=7770903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96113687A Withdrawn EP0761532A3 (fr) 1995-08-31 1996-08-27 Dispositif pour fabriquer des sachets d'emballages

Country Status (2)

Country Link
EP (1) EP0761532A3 (fr)
DE (1) DE19532120C1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1488716A1 (fr) * 1999-05-10 2004-12-22 Pactiv Corporation Fermeture a glissiere, agencements et procedes de fabrication de cette fermeture
WO2007003182A1 (fr) * 2005-07-01 2007-01-11 Amcor Flexibles A/S Emballage en forme de boîte ayant un emballage interne et externe
US7552573B2 (en) 1997-11-07 2009-06-30 Illinois Tool Works, Inc. Method for placing a product in a flexible recloseable container
US8127517B2 (en) 1997-11-07 2012-03-06 Illinois Tool Works Inc. Method and apparatus for placing a product in a flexible recloseable container

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103287630B (zh) * 2013-05-28 2016-04-27 上海瑞吉锦泓包装机械有限公司 多列式条状立式包装机
DE102016207160A1 (de) * 2016-04-27 2017-11-02 Robert Bosch Gmbh Vorrichtung und Verfahren zur Herstellung einer Beutelpackung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1124962A (fr) * 1955-03-10 1956-10-22 Pneumatic Scale Corp Machine pour remplir des récipients tels que des cartons
CH592548A5 (fr) * 1975-05-27 1977-10-31 Sig Schweiz Industrieges
DE3007246A1 (de) * 1980-02-27 1981-09-03 Robert Bosch Gmbh, 7000 Stuttgart Maschine zum herstellen von packungen
EP0420821A1 (fr) * 1989-09-28 1991-04-03 Romatic S.A. Procédé de fabrication d'un emballage sous vide pour produits s'écoulant, en particulier du café moulu
DE4336233A1 (de) * 1993-10-23 1995-04-27 Bosch Gmbh Robert Verfahren und Vorrichtung zum Abmessen und Abfüllen von Schüttgutmengen in Verpackungsbehältern

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7552573B2 (en) 1997-11-07 2009-06-30 Illinois Tool Works, Inc. Method for placing a product in a flexible recloseable container
US8127517B2 (en) 1997-11-07 2012-03-06 Illinois Tool Works Inc. Method and apparatus for placing a product in a flexible recloseable container
EP1488716A1 (fr) * 1999-05-10 2004-12-22 Pactiv Corporation Fermeture a glissiere, agencements et procedes de fabrication de cette fermeture
WO2007003182A1 (fr) * 2005-07-01 2007-01-11 Amcor Flexibles A/S Emballage en forme de boîte ayant un emballage interne et externe

Also Published As

Publication number Publication date
DE19532120C1 (de) 1997-02-27
EP0761532A3 (fr) 1997-06-04

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