EP2534053B1 - Apparatus and method for packaging articles into flexible bags - Google Patents

Apparatus and method for packaging articles into flexible bags Download PDF

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Publication number
EP2534053B1
EP2534053B1 EP11710321.8A EP11710321A EP2534053B1 EP 2534053 B1 EP2534053 B1 EP 2534053B1 EP 11710321 A EP11710321 A EP 11710321A EP 2534053 B1 EP2534053 B1 EP 2534053B1
Authority
EP
European Patent Office
Prior art keywords
edge
articles
web length
web
abutment
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.)
Active
Application number
EP11710321.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2534053A1 (en
Inventor
Roberto Ravizza
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.)
Ravizza Packaging Srl
Original Assignee
Ravizza Packaging Srl
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 Ravizza Packaging Srl filed Critical Ravizza Packaging Srl
Publication of EP2534053A1 publication Critical patent/EP2534053A1/en
Application granted granted Critical
Publication of EP2534053B1 publication Critical patent/EP2534053B1/en
Active 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/13—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/28—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers co-operating with fixed supports
    • 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
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • B65B57/02—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages
    • B65B57/08—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages and operating to stop, or to control the speed of, the machine as a whole

Definitions

  • the present invention refers to the packaging of various types of articles into flexible plastic bags formed starting from a continuous web created by two superimposed flat layers mutually joined along at least one longitudinal edge.
  • plastic material in referring to such webs is not intended to be limiting, in that it intends films of materials such as polyethylene and the like, but also coupled paper/plastic films, poly-coated paper or other polylaminates, provided that they are at least partially electrically insulating, for reasons that will be clarified below.
  • US 4244159 discloses an apparatus according to the preamble of claim 1.
  • US-3864894A discloses an apparatus for clamping the mouth of a deformable bag so as to hold it open during filling, employing finger assemblies provided with detector devices in order to check the correct position of the bag and stop the machine if the position is incorrect.
  • detector devices consist of conventional micro switches carried by the finger assemblies grasping the walls of the bags.
  • the object of the present invention is that of providing a simple, yet efficient and functional solution for detecting possible anomalous situations for which, as was stated, no visual monitoring or manual interruption of the operation of the machine are required.
  • the fill-in station of the packaging machine is of the type generally known from the previously cited patent EP-0926069B1 , and for that reason will not be described in detail.
  • the fill-in station of the packaging machine comprises two operating heads 1, 2 through which a continuous web of flexible heat-sealable material is supplied, typically plastic material, in all cases electrically insulating.
  • the web can be, for example constituted by a flattened tubular film formed by two superimposed layers mutually joined along at least one lateral edge.
  • the fill-in station is provided with heat-sealing and cutting means, known and for simplicity not illustrated, by means of which sacks or bags (S) are formed periodically from the continuous web supplied intermittently to the fill-in station, first closed below, then filled from above with articles to be packaged, and finally sealed above after filling.
  • S sacks or bags
  • each bag S open above is grasped and held in correspondence to its upper edges by the two heads 1, 2, maintained reciprocally juxtaposed in the condition represented in figure 1 .
  • the two heads 1, 2 are reciprocally spaced apart transversally, for example moving head 2 with respect to head 1 as represented in figures 2 and 3 , so to spread apart the edges of the bag S and allow introduction of articles.
  • each of the heads 1, 2 is provided with respective grasping means including a lower abutment member 3; 4 and an upper clamp 5, 6 movable vertically with respect to the corresponding lower abutment member 3, 4 between the raised open position, represented in figure 1 , and the lowered closed position, represented in figures 2 and 3 .
  • the abutments 3, 4 are conveniently constituted by adhesive pads apt to adhere to the edges of the bag S in the reciprocally juxtaposed condition of the two heads 1, 2 to allow then pinching of the relative clamp member 5, 6 following their movement from the raised to the lowered position, and the successive spreading apart by the reciprocal separation of the heads 1 and 2.
  • each abutment member 3, 4 with the respective movable clamp member 5, 6 of each head 1, 2 defines a detector of the presence/absence of the corresponding edge of the bag S.
  • such detector is electrical and is more precisely constituted by a switch, the fixed contact of which is constituted by abutment member 3, 4 (that is, by an electrically conductive part thereof) and the movable contact of which is constituted by the clamp member 5, 6 (that is, by an electrically conductive part thereof).
  • the contacts 3, 5 and 4, 6 of each switch are connected electrically to the respective inputs of an electronic control unit 7 designed to control the operation of the machine.
  • figure 2 illustrates an anomalous situation in which one of the edges, in this case the one corresponding to head 1, was not properly retained between the abutment 3 and the clamp 5, that is, for some reason it was disengaged.
  • the switch constituted by the contacts associated with the abutment 3 and the clamp 5 close, causing the intervention of the electronic control unit 7.
  • control unit 7 The opening or closing of one and/or the other switch is detected by the control unit 7, which is then able to discriminate between situations of correct and anomalous operation.
  • the detector of the presence/absence of the edges of the bag S associated with the heads 1, 2 may be constituted by different sensors, instead of electrical switches, also of more sophisticated types, apt to detect for example field variations or other electrical characteristics according to whether the edges of the bag S are correctly retained between the abutments 3, 4 and the relative clamps 5, 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)
EP11710321.8A 2010-02-12 2011-02-10 Apparatus and method for packaging articles into flexible bags Active EP2534053B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO2010A000105A IT1397991B1 (it) 2010-02-12 2010-02-12 Macchina e metodo per il confezionamento di articoli entro involucri di materiale plastico flessibile.
PCT/IB2011/050563 WO2011098967A1 (en) 2010-02-12 2011-02-10 Apparatus and method for packaging articles into flexible bags

Publications (2)

Publication Number Publication Date
EP2534053A1 EP2534053A1 (en) 2012-12-19
EP2534053B1 true EP2534053B1 (en) 2014-04-23

Family

ID=43430675

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11710321.8A Active EP2534053B1 (en) 2010-02-12 2011-02-10 Apparatus and method for packaging articles into flexible bags

Country Status (7)

Country Link
US (1) US20120311960A1 (it)
EP (1) EP2534053B1 (it)
BR (1) BR112012020291A2 (it)
ES (1) ES2484316T3 (it)
IT (1) IT1397991B1 (it)
MX (1) MX2012009302A (it)
WO (1) WO2011098967A1 (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12037152B2 (en) 2021-02-04 2024-07-16 United Parcel Service Of America, Inc. Automated handling and manipulation of packages and packages specially adapted therefor
US12138804B2 (en) 2021-02-04 2024-11-12 United Parcel Services Of America, Inc. Automated handling and manipulation of packages and packages specially adapted therefor
US11975878B2 (en) * 2021-02-04 2024-05-07 United Parcel Service Of America, Inc. Automated handling and manipulation of packages and packages specially adapted therefor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864894A (en) * 1973-05-04 1975-02-11 Fmc Corp Apparatus for transferring bags
US4244159A (en) * 1979-03-29 1981-01-13 Gess Larry C Machine for producing packages sequentially from continuous flexible tubing
US5265402A (en) * 1989-08-18 1993-11-30 Automated Packaging Systems, Inc. Packaging machine
US5142846A (en) * 1991-05-09 1992-09-01 Gabilan Manufacturing, Inc. Apparatus and method for bagging a product
IT1296654B1 (it) * 1997-12-17 1999-07-14 Ravizza Packaging Srl Metodo e macchina per il confezionamento di articoli in involucri di materiale flessibile.

Also Published As

Publication number Publication date
EP2534053A1 (en) 2012-12-19
WO2011098967A1 (en) 2011-08-18
BR112012020291A2 (pt) 2016-05-03
MX2012009302A (es) 2012-11-06
US20120311960A1 (en) 2012-12-13
ITTO20100105A1 (it) 2011-08-13
ES2484316T3 (es) 2014-08-11
IT1397991B1 (it) 2013-02-04

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