EP0346303A1 - Procédé et machine pour replier les rabats d'extrémité d'emballages scellés contenant des produits alimentaires et pour ensuite envelopper les emballages fabriqués - Google Patents

Procédé et machine pour replier les rabats d'extrémité d'emballages scellés contenant des produits alimentaires et pour ensuite envelopper les emballages fabriqués Download PDF

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Publication number
EP0346303A1
EP0346303A1 EP89830255A EP89830255A EP0346303A1 EP 0346303 A1 EP0346303 A1 EP 0346303A1 EP 89830255 A EP89830255 A EP 89830255A EP 89830255 A EP89830255 A EP 89830255A EP 0346303 A1 EP0346303 A1 EP 0346303A1
Authority
EP
European Patent Office
Prior art keywords
packages
folding
end flaps
flaps
feed direction
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Withdrawn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
EP89830255A
Other languages
German (de)
English (en)
Inventor
Gianni Bosi
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.)
VERPAC S.R.L.
Original Assignee
VERPAC Srl
Verpac SpA
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 VERPAC Srl, Verpac SpA filed Critical VERPAC Srl
Publication of EP0346303A1 publication Critical patent/EP0346303A1/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Withdrawn legal-status Critical Current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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/58—Applying two or more wrappers, e.g. in succession
    • 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
    • B65B61/24—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for shaping or reshaping completed packages

Definitions

  • the present invention relates to a process and a machine for folding back the end flaps in sealed packages containing foodstuff, such as for example tablets of chocolate and the like, and subsequently wrapping the packages thus formed.
  • the process of the invention is adapted to be performed with packages, referenced by 11, provided with two end flaps 12 disposed in almost coplanar relation with the packages themselves and extending outwardly from the opposite sides of the same and it consists of the following steps in succession: - bending of the end flaps 12 to a position at right angles to the preceding extension plan of the same; - folding over of the corners 12a of the free end of said end flaps 12 as far as they are disposed upon the flaps themselves; - further folding over of the end flaps 12 as far as they come in contact with the surface of the respective packages 11; - application of an enfolding band 15 made of covering material to at least four faces of the packages so as to completely or partly cover the end flaps 12 after folding.
  • the last mentioned step can be carried out by wrapping the band 15 either only around the faces of packages 11 devoid of the end flaps 12 or around the faces of said packages from which the end flaps 12 project. At all events, as already said, the end flaps 12 must be covered at least partly in order to prevent them from taking their starting configuration again.
  • the machine according to the invention adapted to perform the above process and identified as a whole at 10 in Fig. 1, substantially consists of four working stations disposed in succession and denoted by reference numerals 1, 2, 3 and 4 respectively.
  • Station 1 comprises a horizontal conveyor belt 6 the upstream end of which relative to its feed direction F is located below a connecting means 24 designed to connect it to the machine that makes packages 11.
  • said means consists of a conveyor belt 24a at right angles to belt 6 and of a pair of parallel upright toothed belts 24b defining, with their respective teeth 24c, an equal number of cells parallel to the conveyor belt 24a holding the individual packages 11. Should the belts 24b be moved continuously it is possible to have the end of the conveyor belt 24a close to belts 24b moved along a vertical axis so that packages 11 are kept in a parallel position while being transferred on teeth 24c.
  • Packages 11 resting on belt 6 are moved forward being oriented with their end flaps 12 at right angles to the feed direction F of said belt 6.
  • Station 2 consists of a wheel rotatable about a horizontal axis at right angles to the feed direction F of packages 11 and provided with radial seats 7a for receiving packages 11 coming from belt 6 (see Fig. 3).
  • Seats 7a are laterally open and their size, measured along the axis of wheel 7, is not larger than the product contained therein so that at least the end flaps 12 can project therefrom.
  • Folding means 25 (see Fig. 3) is provided on either side of the wheel 7 and along its upper arc in the region of the side openings of radial seats 7a.
  • Said means consists, on each side of the wheel 7, of three flat arc-shaped guide bars 31, 32, 33 bent according to different bending radii.
  • the middle bar 32 is flat and at right angles to the axis of rotation of wheel 7 and is substantially in the form of a triangle, with a transverse size measured along the radial directions of wheel 7, which decreases concordantly with the feed direction of the latter.
  • the side bars 31, 33 are in coplanar relation with each other and disposed slightly outwardly to the middle bar 32, their upstream ends being warped towards the wheel 7.
  • the shape of these side bars 31 and 33 substantially matches the shape of the middle bar 32 except for a guide channel for the corners 12a of the end flaps 12 in packages 11.
  • Packages 11 are brought by wheel 7 close to the middle bar 32 which causes the bending of flaps 12 in packages 11. Subsequently the corners 12a of flaps 12 come in contact with the warped ends of the side bars 31 and 33 and move within and along the guide channels defined by the middle 32 and side 31 and 33 bars and, due to the fact that they converge, corners 12a are folded over upon the respective flaps 12.
  • the third station comprises a conveyor belt 8 moving below helical guides 9 disposed close to the flaps 12 so that they are further folded as far as they come in contact with the upper face of the respective packages 11.
  • a conveyor belt 8 moving below helical guides 9 disposed close to the flaps 12 so that they are further folded as far as they come in contact with the upper face of the respective packages 11.
  • two fingers 13 are provided along the belt 8 along the belt 8 .
  • the movable finger 13 is lowered behind each package 11 and moved concordantly with the belt 8 but with a higher speed than the latter so that it causes the rotation of package 11 through 90°.
  • Station 4 consists of a wheel 22 provided with radial pliers and rotatable about a horizontal axis parallel to the axis of wheels 7 and 40.
  • Each pair of pliers 21 consists of two jaws 19 and 20 of different length articulated on axes parallel to the axis of wheel 22.
  • Jaw 19 disposed upstream to the direction of rotation of wheel 22 is longer than the size of packages 11 measured along the direction of the jaw itself and its end is fork-shaped.
  • the other jaw 20 is shorter than packages 11.
  • Station 4 also comprises means 26 feeding a strip 14 made of covering material and cutting it transversely into bands 15.
  • Bands 15 are longer than the overall circumferential extension of packages 11 measured concordantly with the direction of rotation of wheel 22 and their width is not larger than that of packages 11 taken along the axis of rotation of the same wheel.
  • Associated with the wheel 22 are: means (not shown) designed to introduce the bands 15 into the jaws 19 and 20 and fold them to form two end portions 17 and 18 of different length, means 27 feeding adhesive material 23 to the inner face of the free end of the longer end portion 18 in bands 15, a fork-shaped element 28 the teeth 28a of which pass between the teeth of the long jaws 19 and a plate 29 moving along a radial direction of wheel 22.
  • Each band 15 is accommodated between jaws 19 and 20 so that its longer end portion 18 is in contact with the longer jaw 19.
  • a means not shown pushes packages 11 between the respective bands 15 folded and retained as above specified, then the application of adhesive material is carried out and the fork 28 performs the operation of folding over the long portion 18 upon the package face opposite that of introduction into the band 15 and finally the plate 29 folds the free end of said long portion 18 as far as it comes in contact with the short portion 17 to which it adheres.
  • Wheels 7, 40 and 22 are internally hollow so that they can house means 34 acting through the same and designed to cause the ejection of packages as diagrammatically shown in Fig. 2 in connection with wheel 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
EP89830255A 1988-06-10 1989-06-06 Procédé et machine pour replier les rabats d'extrémité d'emballages scellés contenant des produits alimentaires et pour ensuite envelopper les emballages fabriqués Withdrawn EP0346303A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT350588 1988-06-10
IT03505/88A IT1220400B (it) 1988-06-10 1988-06-10 Procedimento e macchina per la piegatura dei lembi estremi di confezioni a tenuta contenenti prodotti alimentari e per la fasciatura delle confezioni cosi' realizzate

Publications (1)

Publication Number Publication Date
EP0346303A1 true EP0346303A1 (fr) 1989-12-13

Family

ID=11108636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89830255A Withdrawn EP0346303A1 (fr) 1988-06-10 1989-06-06 Procédé et machine pour replier les rabats d'extrémité d'emballages scellés contenant des produits alimentaires et pour ensuite envelopper les emballages fabriqués

Country Status (2)

Country Link
EP (1) EP0346303A1 (fr)
IT (1) IT1220400B (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR415443A (fr) * 1909-05-19 1910-09-26 Frederick Grover Perfectionnements apportés aux machines pour enrouler et fixer des étiquettes autour de tablettes rectangulaires
US2006564A (en) * 1931-09-19 1935-07-02 Harry E Townsend Wrapping machine
FR1429897A (fr) * 1965-04-13 1966-02-25 Dow Chemical Co Procédé d'empaquetage d'articles de marchandise, plus particulièrement de fromages, et articles empaquetés ainsi obtenus
NL6810166A (fr) * 1967-07-20 1969-01-22

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR415443A (fr) * 1909-05-19 1910-09-26 Frederick Grover Perfectionnements apportés aux machines pour enrouler et fixer des étiquettes autour de tablettes rectangulaires
US2006564A (en) * 1931-09-19 1935-07-02 Harry E Townsend Wrapping machine
FR1429897A (fr) * 1965-04-13 1966-02-25 Dow Chemical Co Procédé d'empaquetage d'articles de marchandise, plus particulièrement de fromages, et articles empaquetés ainsi obtenus
NL6810166A (fr) * 1967-07-20 1969-01-22

Also Published As

Publication number Publication date
IT8803505A0 (it) 1988-06-10
IT1220400B (it) 1990-06-15

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