EP4397478A2 - Strohwelleinheit und -verfahren - Google Patents

Strohwelleinheit und -verfahren Download PDF

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Publication number
EP4397478A2
EP4397478A2 EP24174784.9A EP24174784A EP4397478A2 EP 4397478 A2 EP4397478 A2 EP 4397478A2 EP 24174784 A EP24174784 A EP 24174784A EP 4397478 A2 EP4397478 A2 EP 4397478A2
Authority
EP
European Patent Office
Prior art keywords
straw
processing path
blades
corrugating
seat
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.)
Granted
Application number
EP24174784.9A
Other languages
English (en)
French (fr)
Other versions
EP4397478B1 (de
EP4397478A3 (de
Inventor
Fabrizio FAZZIOLI
Maurizio ALBERTI
Massimo Fortini
Giuliano Gamberini
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.)
GD SpA
Original Assignee
GD 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 GD SpA filed Critical GD SpA
Publication of EP4397478A2 publication Critical patent/EP4397478A2/de
Publication of EP4397478A3 publication Critical patent/EP4397478A3/de
Application granted granted Critical
Publication of EP4397478B1 publication Critical patent/EP4397478B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/205—Corrugating tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional [3D] articles
    • B31D5/0095—Making drinking straws
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G21/00—Table-ware
    • A47G21/18—Drinking straws or the like
    • A47G21/186—Details of bendable straws

Definitions

  • the present invention finds advantageous application to the packing of straws, to which the following disclosure will explicitly refer without thereby losing generality.
  • Straws are known which provide an intermediate corrugated portion aimed to allow the bending of the straw in order to assume, in use, the most suitable shape to satisfy the user.
  • a known packing machine for straws comprises a corrugating unit provided with a conveyor which moves a series of gripping heads (each suitable to engage and hold a corresponding straw) along a processing path and between an input station in which each gripping head receives a smooth straw and an output station in which each gripping head releases a corrugated straw.
  • Each gripping head comprises a support needle which is axially and perpendicularly oriented relative to the processing path and is movable between an exchange position in which the support needle is arranged on the outside of a straw and a holding position in which the support needle is at least partially arranged inside the straw.
  • Each support needle has an intermediate corrugated portion which reproduces the corrugated shape that must be impressed on the straws.
  • each support needle in addition to being mounted axially movable, is also mounted so as to rotate on itself around a central symmetry axis.
  • the corrugating unit comprises a plurality of corrugating blades which are arranged parallel to one another and spaced apart in a fixed position along the working path so that each straw moving along the working path is held by a corresponding support needle (which in the meantime is made to rotate on itself to set the straw in rotation as well) comes into contact with the corrugating blades which, by cooperating on the opposite side of the straw with the intermediate corrugated portion of the needle, permanently deform the straw thus forming in the straw the desired intermediate corrugated portion.
  • the intermediate corrugated portion of each straw has an irregular (non-uniform) shape, namely, the rings of the corrugation have different depths; this defect, although not so evident to the naked eye, is particularly negative since, when the straw is bent or compressed at the intermediate corrugated portion, the straw loses its initial circular cross section to assume a cross section markedly (and completely unwanted) elliptical-shaped.
  • US10524599B1 describes a corrugating machine for imparting a series of annular corrugations to a paper straw.
  • the object of the present invention is to provide a corrugating unit and method for a straw which allow to obtain an intermediate corrugated portion of a perfectly regular (uniform) shape, namely, in which all the rings of the corrugation have exactly the same depth.
  • the reference number 1 indicates as a whole a straw (made of paper or plastic material) which is applied to a beverage package.
  • the straw 1 has a flat end 2 (which is held by the lips of the user) and a pointed end 3 (to more effectively break through the cap that seals a dispensing opening of the package).
  • the corrugating station S3 extends over a relatively extended section of the processing path P (namely, for more than 90° of angular extension of the processing path P which corresponds to more than half of the entire extension of the processing path P) and comprises a plurality of blades 12 (better illustrated in Figure 5 ), each having the shape of an arc of a circle.
  • the rest position of the support arm 13 is used above all when it is necessary to test the corrugating unit 6 "on empty” , that is, when it is necessary to operate the corrugating unit 6 without straws 1 (a rather frequent operating mode during assembly, maintenance and adjustment steps of the corrugating unit 6) to ensure that the blades 12 do not accidentally come into contact with the metal parts of the seats 9 without the interposition of the straws 1 (which are not present when the corrugating unit 6 works "on empty ").
  • each adjustment device 14 comprises a screw 23 which can be rotated in both directions, and a mechanical transmission 24 which transforms the rotation movement of the screw 23 into a radial translation movement of the corresponding blade 12 in both directions.
  • the corrugating unit 6 described above has numerous advantages.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Ceramic Capacitors (AREA)
  • Sheet Holders (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
EP24174784.9A 2021-06-17 2022-06-16 Strohwelleinheit und -verfahren Active EP4397478B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT102021000015836A IT202100015836A1 (it) 2021-06-17 2021-06-17 Unità e metodo di corrugazione di una cannuccia
EP22735613.6A EP4355568A1 (de) 2021-06-17 2022-06-16 Strohwelleinheit und -verfahren
PCT/IB2022/055583 WO2022264079A1 (en) 2021-06-17 2022-06-16 Straw corrugating unit and method

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP22735613.6A Division EP4355568A1 (de) 2021-06-17 2022-06-16 Strohwelleinheit und -verfahren

Publications (3)

Publication Number Publication Date
EP4397478A2 true EP4397478A2 (de) 2024-07-10
EP4397478A3 EP4397478A3 (de) 2024-10-02
EP4397478B1 EP4397478B1 (de) 2025-12-17

Family

ID=77801908

Family Applications (2)

Application Number Title Priority Date Filing Date
EP24174784.9A Active EP4397478B1 (de) 2021-06-17 2022-06-16 Strohwelleinheit und -verfahren
EP22735613.6A Pending EP4355568A1 (de) 2021-06-17 2022-06-16 Strohwelleinheit und -verfahren

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP22735613.6A Pending EP4355568A1 (de) 2021-06-17 2022-06-16 Strohwelleinheit und -verfahren

Country Status (3)

Country Link
EP (2) EP4397478B1 (de)
IT (1) IT202100015836A1 (de)
WO (1) WO2022264079A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4442448B1 (de) 2023-04-03 2025-12-17 G.D S.p.A. Einheit zum formen von wellen an trinkhalmen und entsprechendes verfahren

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10524599B1 (en) 2014-05-07 2020-01-07 Hoffmaster Group, Inc. Flexible straw and system and method of manufacturing the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122977A (en) * 1964-03-03 Graham
US2985077A (en) * 1957-12-04 1961-05-23 Sidney G Graham Machine for convoluting soda straws or the like
US3641884A (en) * 1969-07-07 1972-02-15 Anton Jivoin Manufacturing flexible drinking straws
ES8608395A1 (es) * 1985-08-02 1986-07-16 Perfils Tecnics S A Maquina para el arrugado de canas succionadoras para bebidas

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10524599B1 (en) 2014-05-07 2020-01-07 Hoffmaster Group, Inc. Flexible straw and system and method of manufacturing the same

Also Published As

Publication number Publication date
EP4397478B1 (de) 2025-12-17
WO2022264079A1 (en) 2022-12-22
IT202100015836A1 (it) 2022-12-17
EP4355568A1 (de) 2024-04-24
EP4397478A3 (de) 2024-10-02

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