EP0302460A1 - Procédé et machine pour la fabrication continue de filets tubulaires et le sac ainsi obtenu - Google Patents

Procédé et machine pour la fabrication continue de filets tubulaires et le sac ainsi obtenu Download PDF

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Publication number
EP0302460A1
EP0302460A1 EP88112574A EP88112574A EP0302460A1 EP 0302460 A1 EP0302460 A1 EP 0302460A1 EP 88112574 A EP88112574 A EP 88112574A EP 88112574 A EP88112574 A EP 88112574A EP 0302460 A1 EP0302460 A1 EP 0302460A1
Authority
EP
European Patent Office
Prior art keywords
bag
netting
heads
strips
stage
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Withdrawn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
EP88112574A
Other languages
German (de)
English (en)
Inventor
Rosalina Paniagua Olaechea
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
Publication of EP0302460A1 publication Critical patent/EP0302460A1/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Withdrawn legal-status Critical Current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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/02—Packaging agricultural or horticultural products
    • B65B25/04—Packaging fruit or vegetables
    • 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
    • B65B9/15—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 stored on filling nozzles

Definitions

  • This Invention Patent refers to a manufacturing process for the continuous production of bags made from a netting material, the machinery for carrying out this process and the bag obtained therefrom, all of which offer considerable advantages compared to the processes and machinery in use hitherto in that by means of a tot­ally automatic operation one can obtain a net bag having a high strength especially suitable for quality agricult­ural products, of pleasing appearance and serviceable and having a rectangular upper section providing space for publicity, characteristics of the product contained in the bag and other indications such as the weight and type of product etc.
  • Bags composed of netting for agricultural products formed from a sleeve of netting enveloping a vertical tube are already known.
  • the lower end of the netting protrudes beyond the extremity of the tube and it is closed by means of a cramp or similar type of closure.
  • the products to be packed are allowed to fall into the closed end of the net causing it to stretch out by their own weight, the upper end of the net then being closed by another cramp.
  • a strengthening strip parallel thereto and attached to it by the cramps at the extremities.
  • the bag so produced lacks aesthetic value, adequate strength and means for easy transport.
  • This invention overcomes these disadvantages by providing a process and the corresponding machinery for the manufacture of a strong bag in which the extremities of the tubular sleeve of netting are heat sealed with the bag closure strips at the extremities, the upper extremity having a handle stamped out so as to offer an effective means of carrying by the customer, the whole having a presentation similar to that of a superior shopping bag as distinct from the simple sack type bags of a rough spherical shape cramped at its two ends.
  • This Patent basically comprises a vertical tube through which the products to be packed in the bag are passed, these already having been graded as to their size and grouped in quantities to be contained in the bag.
  • the tube At its upper extremity the tube is enveloped by a sleeve of netting of indefinite length suitably folded to form an annular body supported by a component in the shape of a truncated cone situated around the vertical tube in the vicinity of its lower extremity but separated therefrom to the extent of a circumferential space through which the tubular sleeve of netting can pass, being drawn by means of rotating wheels which cause it to advance to­wards the lower zone of the system.
  • the following stage is the introduction of the product to be packed into the bag through the vertical tube the lower end of the bag having been closed in the manner described below.
  • the two heads located below the reels of strip advance in opposed directions until they are facing each other.
  • Each head is fitted with a knife blade, succion orifices connected to a vacuum pump, various heat­ing elements and a heated cutting wire, one head having a die for stamping out the handle, the other head having the corresponding punch to mate with the die.
  • the knife blade on each of these heads known for convenience as the mobile knives, is set to correspond with a fixed blade located below the plas­tic drawing rollers.
  • the head in the course of its travel, together with the mobile knife blades on encountering the fixed blades, cuts a length of the plastic strip which is held in place due to the action of the suction through the vacuum orifices.
  • the lengths of detached plastic strip are then heated by the heating elements in the heads so that on coming together and gripping the upper extremity of the tub­ular net sleeve the said heads, by means of the com­bination of pressure and heat cause the heat sealing effect to weld together the body of netting held bet­ween them and the two plastic strips.
  • the minimum of three heat seal weld lines are across the full width of the netting, the two lower lines acting as closures to the net bag but spaced such that there is space between them forthe handle, this being in the form of a pressed out rectangle with the shorter sides curved while the third line of heat seal provides the lower end closure of the following net bag.
  • the final operation prior to the separation of the heads is the cutting of the bag by means of a heated wire thus separating the area containing the two heat seal lines correspond­ing to the net bag below the heads and complete from the area containing the single heat seal line on the lower part of the following bag which in turn will then become the next cycle of the operation of the machine, and so forming the bottom closure of that bag.
  • the next cycle commences by wheels controlling the netting pulling through the appropriate length of the netting and the rollers controlling the plastic strip withdrawing a preset length thereof into position ready for the succeeding operations in the above described sequence.
  • the resulting bag has a high strength due to the composition of its extremities being of a 'sandwich' construction: plastic strip - netting - plastic strip, including the area containing the cut out for the handle, the netting consequently extending from one extremity of the bag to the other.
  • the net bag as shown in Figures 1 to 4, produced in accordance with the processes, object of this invention patent is derived from an initial tubular sleeve of netting -1- which equally can be extruded in fabric form, with an upper closure el­ement -2- and another lower closure element -3-, it being characteristic that the lower closure element -4- of the following bag in the manufacturing train corresponds to the element -3- of the bag already completed, it being formed in the same operation as that in which the closure -2- is made.
  • This upper closure -2- of the bag is of a rectangular shape with at least two heat seal lines -28- between which there is a cut-out -6-, the struc­ture of the closure element being that of a sandwich consisting of a plastic strip -21-, the tubular sleeve -1- and another plastic strip -21-, carrying on the outer faces information concerning publicity and a reference to the products contained within the bag.
  • the operation of separating the completed bag from the net sleeve -1- is carried out by cutting off the former from the latter on the line -7- in Figures 1 and 2 such that the part -4- which remains united with the sleeve -1- becomes the closure element of the bag which is the next in the manufacturing cycle.
  • the machine employed in the manufacture of the net bags consists of a vertical tube -8- through which pass the products to be packaged in the bag -1-, which is surrounded by the netting -9-, suitable folded so that it can pass at its lower end through a space between the tube -8- and the truncated cone support -29- of the netting sleeve, as it is required, drawn by the rollers -12-.
  • thermoplastic strip carrying thereon publicity and references which may be relevant to to the product.
  • These plastic continuous strips are caused to feed down by means of rollers -13- ­and -14-.
  • An end stop or signal on the strip it­self is provided so that the required length of strip -21- is positioned in front of the heads. -19- and -20-.
  • the strip signal can be detected by means of a photelectric cell.
  • the carrying heads -19- and -20- are loc­ated below the coils -10- and -11- at the level of the closures and are at least the full width of the bag. They are actuated by the two opposing pneumatic cylinders -23-, their final position being mutually closed against each other.
  • Each of the heads carries a knife blade -17- and -18- which acting against the fixed knife blades -15- and -16- separate the plastic strip length -21- from the coil by cutting.
  • one of the heads is fitted with a heating wire -25- which causes the separation of the bag along the cutting line -7-, this method of cutting being prefered in that it forms a peripheral rib along the cutting line which would not be the case using a conventional knife blade cut.
  • One of the heads carries a die -27- to stamp out the handle of the net bag.
  • Figure -7- shows the next stage with the two heads -19- and -20- advancing towards each other, the plastic strips -21- being held by suction and being cut off from the coils -11- and -10- by the action of the mobile knife blades -17- and -18- mounted on the heads in conjunction with the fixed knife blades -15- ­and -16- located behind the plastic strip.
  • Figure 8 shows the two heads in their forward position on the level of the bag closure for the heat sealing operation of the two legths -21- of plastic strip which has been preheated by the heating elements -24- contained in the heads -19- and -20-.
  • the die and punch combination -27- then cuts out the handle perforation -6- this being in the shape of a rectangle with the two lessor sides curved but with the upper side not fully separated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Making Paper Articles (AREA)
  • Bag Frames (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP88112574A 1987-08-06 1988-08-02 Procédé et machine pour la fabrication continue de filets tubulaires et le sac ainsi obtenu Withdrawn EP0302460A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES8702323A ES2004786A6 (es) 1987-08-06 1987-08-06 Procedimiento para la fabricacion en continuo de bolsas de malla maquina para su puesta en practica y bolsa correspondiente

Publications (1)

Publication Number Publication Date
EP0302460A1 true EP0302460A1 (fr) 1989-02-08

Family

ID=8252098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88112574A Withdrawn EP0302460A1 (fr) 1987-08-06 1988-08-02 Procédé et machine pour la fabrication continue de filets tubulaires et le sac ainsi obtenu

Country Status (3)

Country Link
EP (1) EP0302460A1 (fr)
ES (1) ES2004786A6 (fr)
MA (1) MA21347A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405595A1 (fr) * 1989-06-30 1991-01-02 Empac S.A. Machine pour la fabrication continue de sacs en filet
WO1994012394A1 (fr) * 1992-11-26 1994-06-09 John Haffield Procede et appareil de conditionnement d'une matiere vegetale agricole
ES2111434A1 (es) * 1994-04-14 1998-03-01 Paniagua Olaechea Rosalina Bolsa de malla extrusionada, para el envasado de productos a granel y procedimiento para su fabricacion.
ES2121504A1 (es) * 1995-03-08 1998-11-16 Benicas S L Maquina para cargar tubos de malla.
ES2122869A1 (es) * 1995-05-16 1998-12-16 Daumar Talleres Procedimiento para obtener paquetes llenos con productos, mediante tubo de malla continuo.
EP1031512A1 (fr) 1999-02-26 2000-08-30 Talleres Daumar S.A. Machine de fabrication, remplissage et fermeture de sacs en tissu maillé
EP1407969A1 (fr) * 2002-10-09 2004-04-14 Jarsan Beheer B.V. Procédé et installation pour fabriquer des sachets d' emballage
WO2009072083A2 (fr) * 2007-12-07 2009-06-11 F.B Sistem S.R.L. Appareil pour emballer des produits de type fruits et légumes
US20120055121A1 (en) * 2009-05-07 2012-03-08 Girnet Internacional, S.L. Method, system and machine for producing and filling bags
ITRA20100039A1 (it) * 2010-12-10 2012-06-11 Rev Eng Di Fiumana Roberto Metodo di confezionamento di prodotti con rete tubolare.
WO2013098355A1 (fr) 2011-12-27 2013-07-04 Jasa Packaging Systems B.V. Sac muni de poignée à sangle pré-appliquée
DE102009043470B4 (de) * 2008-10-01 2015-09-17 Gk Industries Gmbh Verpackungsmaschine
DE102019111657A1 (de) * 2019-05-06 2020-11-12 C-Pack Verpackungsmaschinen Gmbh Verfahren und Vorrichtung zum Verschließen von Verpackungen
CN113830352A (zh) * 2021-09-10 2021-12-24 金华市农业科学研究院(浙江省农业机械研究院) 一种薯类包装用自动装网袋装置
CN115027731A (zh) * 2022-07-22 2022-09-09 安徽唯嵩光电科技有限公司 一种泡沫网袋接带机构、接带方法及网袋输送系统

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2112126B1 (es) * 1994-04-22 1998-11-01 Paniagua Olaechea Rosalina Perfeccionamientos en las maquinas de envasado de productos a granel en bolsas de malla.
ES2164575B1 (es) * 1999-12-15 2003-05-16 Temsapack S L Maquina envasadora de productos en bolsas de malla
ES2188389B1 (es) * 2001-07-30 2004-10-16 Giro Gh, S.A. Maquina para la elaboracion en continuo de bolsas de malla.
ES2224804B1 (es) * 2002-08-05 2007-07-16 Giro Gh, S.A. Dispositivo de apertura para bolsas de malla.
ES2254039B1 (es) * 2005-12-26 2007-07-16 Roda Packing, S.A. Bolsa para productos hortofruticolas.
CN108622451B (zh) * 2017-03-22 2023-08-29 甘肃农业大学 机械式苹果网套自动包装机
CN114802882B (zh) * 2022-04-11 2024-02-20 浙江大烽云仓科技有限公司 套网设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1161208B (de) * 1961-05-03 1964-01-09 Hamac Hansella A G Maschinenfa Vorrichtung zum Verpacken von Gegenstaenden in Netzschlaeuchen
FR2099733A5 (fr) * 1970-09-01 1972-03-17 Manuf Tourangelle Instru
FR2151155A6 (fr) * 1971-08-20 1973-04-13 Manuf Tourang Instr
DE2636821A1 (de) * 1976-08-16 1978-02-23 Kunichika Takasaki Verpackungsbeutel fuer fruechte oder gemuese sowie verfahren und vorrichtung zu seiner herstellung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1161208B (de) * 1961-05-03 1964-01-09 Hamac Hansella A G Maschinenfa Vorrichtung zum Verpacken von Gegenstaenden in Netzschlaeuchen
FR2099733A5 (fr) * 1970-09-01 1972-03-17 Manuf Tourangelle Instru
FR2151155A6 (fr) * 1971-08-20 1973-04-13 Manuf Tourang Instr
DE2636821A1 (de) * 1976-08-16 1978-02-23 Kunichika Takasaki Verpackungsbeutel fuer fruechte oder gemuese sowie verfahren und vorrichtung zu seiner herstellung

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405595A1 (fr) * 1989-06-30 1991-01-02 Empac S.A. Machine pour la fabrication continue de sacs en filet
WO1994012394A1 (fr) * 1992-11-26 1994-06-09 John Haffield Procede et appareil de conditionnement d'une matiere vegetale agricole
US5855107A (en) * 1992-11-26 1999-01-05 Haffield; John Method and apparatus for packaging agricultural plant material
ES2111434A1 (es) * 1994-04-14 1998-03-01 Paniagua Olaechea Rosalina Bolsa de malla extrusionada, para el envasado de productos a granel y procedimiento para su fabricacion.
ES2121504A1 (es) * 1995-03-08 1998-11-16 Benicas S L Maquina para cargar tubos de malla.
ES2122869A1 (es) * 1995-05-16 1998-12-16 Daumar Talleres Procedimiento para obtener paquetes llenos con productos, mediante tubo de malla continuo.
EP1031512A1 (fr) 1999-02-26 2000-08-30 Talleres Daumar S.A. Machine de fabrication, remplissage et fermeture de sacs en tissu maillé
EP1407969A1 (fr) * 2002-10-09 2004-04-14 Jarsan Beheer B.V. Procédé et installation pour fabriquer des sachets d' emballage
NL1021612C2 (nl) * 2002-10-09 2004-04-20 Jarsan Beheer B V Werkwijze en inrichting voor het vervaardigen van een zakverpakking, alsmede zakverpakking.
US7356979B2 (en) 2002-10-09 2008-04-15 Jarsan Beheer B.V. Method and apparatus for manufacturing a bag package, and bag package
WO2009072083A2 (fr) * 2007-12-07 2009-06-11 F.B Sistem S.R.L. Appareil pour emballer des produits de type fruits et légumes
WO2009072083A3 (fr) * 2007-12-07 2009-07-23 F B Sistem S R L Appareil pour emballer des produits de type fruits et légumes
DE102009043470B4 (de) * 2008-10-01 2015-09-17 Gk Industries Gmbh Verpackungsmaschine
US20120055121A1 (en) * 2009-05-07 2012-03-08 Girnet Internacional, S.L. Method, system and machine for producing and filling bags
US9227744B2 (en) * 2009-05-07 2016-01-05 Girnet International, S.L. Method, system and machine for producing and filling bags
ITRA20100039A1 (it) * 2010-12-10 2012-06-11 Rev Eng Di Fiumana Roberto Metodo di confezionamento di prodotti con rete tubolare.
WO2012076195A1 (fr) * 2010-12-10 2012-06-14 Rev Packaging Solutions S.R.L. Procédé et appareil pour emballer des produits dans un filet tubulaire
WO2013098355A1 (fr) 2011-12-27 2013-07-04 Jasa Packaging Systems B.V. Sac muni de poignée à sangle pré-appliquée
DE102019111657A1 (de) * 2019-05-06 2020-11-12 C-Pack Verpackungsmaschinen Gmbh Verfahren und Vorrichtung zum Verschließen von Verpackungen
CN113830352A (zh) * 2021-09-10 2021-12-24 金华市农业科学研究院(浙江省农业机械研究院) 一种薯类包装用自动装网袋装置
CN115027731A (zh) * 2022-07-22 2022-09-09 安徽唯嵩光电科技有限公司 一种泡沫网袋接带机构、接带方法及网袋输送系统
CN115027731B (zh) * 2022-07-22 2024-05-24 安徽唯嵩光电科技有限公司 一种泡沫网袋接带机构、接带方法及网袋输送系统

Also Published As

Publication number Publication date
ES2004786A6 (es) 1989-02-01
MA21347A1 (fr) 1989-04-01

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