WO2010128918A1 - A method at the manufacture of a carton bottle - Google Patents

A method at the manufacture of a carton bottle Download PDF

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Publication number
WO2010128918A1
WO2010128918A1 PCT/SE2010/000104 SE2010000104W WO2010128918A1 WO 2010128918 A1 WO2010128918 A1 WO 2010128918A1 SE 2010000104 W SE2010000104 W SE 2010000104W WO 2010128918 A1 WO2010128918 A1 WO 2010128918A1
Authority
WO
WIPO (PCT)
Prior art keywords
carton
blank
main body
sleeve
width
Prior art date
Application number
PCT/SE2010/000104
Other languages
French (fr)
Inventor
Lennart Stillerud
Original Assignee
Tetra Laval Holdings & Finance S.A.
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 Tetra Laval Holdings & Finance S.A. filed Critical Tetra Laval Holdings & Finance S.A.
Publication of WO2010128918A1 publication Critical patent/WO2010128918A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
    • B29C45/14221—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure by tools, e.g. cutting means
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/20—Cutting sheets or blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14598—Coating tubular articles
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/20—Cutting sheets or blanks
    • B31B50/22—Notching; Trimming edges of flaps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D15/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials
    • B65D15/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums
    • B65D15/04—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums with curved, or partially curved, walls made by winding or bending paper
    • B65D15/08—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums with curved, or partially curved, walls made by winding or bending paper with end walls made of plastics material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/4279—Joints, seams, leakproof joints or corners, special connections between panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14008—Inserting articles into the mould
    • B29C45/14016—Intermittently feeding endless articles, e.g. transfer films, to the mould
    • B29C45/14024—Intermittently feeding endless articles, e.g. transfer films, to the mould and punching or cutting a portion from the endless articles during mould closing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7158—Bottles
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
    • B31B2105/0022—Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms

Definitions

  • the present invention relates to a method at the manufacture of a carton bottle, comprising a sleeve-shaped main body of a carton material and a plastic top injection- molded thereon, the main body being formed of a longitudinally heat-sealed, sleeve- shaped blank, for improving the plastic molding conditions at the junction between the main body and the top.
  • a so-called carton bottle can thus in essence be manufactured by injection- molding a plastic top on a main body, comprising a blank cut from a carton material web and formed into a sleeve or cylinder and subsequently longitudinally heat-sealed.
  • An injection-molding tool may be provided with a notch for accommodating the double-thickness material at the longitudinal heat-seal.
  • the width of the carton material web may vary with as much as ⁇ 1 mm from the factory, which may lead to unsatisfactory results at the injection-molding of the top on the tool. Especially, excess plastic material may flow out at the injection-molding in the junction area to the heat-seal of the main body at its inside and/or outside.
  • the main object of the invention is thus to improve the molding conditions at this junction, so that the above drawback is removed.
  • This nominal width is accordingly chosen to be less than any expected real width of the blank, and the dimensioning of the notch in the injection-molding tool is chosen so as to obtain optimal results with the nominal width.
  • a scrap piece width of some 2 mm may be suitable. The scrap piece is preferably removed in conjunction with the cutting of the blank from a carton web.
  • the scrap piece is preferably removed by punching.
  • FIG. 1 is an isometric view of a so-called carton bottle
  • Fig 2 is an isometric view of an injection-molding tool for the top of the bottle shown in Fig 1,
  • Fig 3 is a schematic view of a carton web for accomplishing a carton bottle of Fig 1
  • Fig 4 schematically illustrates a processing step for the carton web shown in
  • the present invention relates to a so-called carton bottle, shown in Fig 1.
  • the bottle has a main body 1 of a carton material and a plastic top or lid 2, which is preferably provided with a screw-on cap 3.
  • the manufacturing and filling process for this bottle may comprise the following main steps: from a carton web, one blank 4 (Fig 3) at a time with a suitable length is cut, - the blank is formed into a mainly cylindrical shape or into a sleeve around a mandrel and heat sealed along its longitudinal edge,
  • the formed carton cylinder or sleeve is placed on a tool 5, as shown in Fig 2, the tool being part of an injection-molding machine,
  • the plastic top 2 is injection-molded on the carton sleeve so as to form an integrated unit therewith,
  • the cap 3 is optionally added to the top 2,
  • the formed bottle is filled with a suitable fluid from its bottom end
  • the bottle bottom is heat-sealed, preferably to form a flat surface, on which the package or bottle may stand.
  • the invention is concerned with the step of injection-molding the top 2 on the carton sleeve.
  • the tool 5 is provided with a corresponding longitudinal notch 6 at its lower part.
  • the width of the carton web, from which the blank 4 is cut, may in practice differ rather considerably from its nominal width. If such a width, difference occurs, there is a tendency for excess plastic material to form at the double material thickness area or overlap area on the inside and/or outside of the carton sleeve at the junction to the top 2 at the injection-molding.
  • the main object of the invention is to obviate this negative forming of excess plastic material. This object is accomplished in the following way.
  • a nominal width for the carton web is determined, which is less than the lowest experienced width, in practice, and the position and dimensioning of the tool notch 6 is adapted to this nominal width for accomplishing an optimal injection- molding result but also an overlap in the longitudinal heat-sealing with good tolerances.
  • a narrow scrap piece 7 is removed, preferably by punching, from one edge portion of the blank in the area intended for positioning in the mold notch 6, so that the blank width 8 in this area becomes the nominal width.
  • the width of the scrap piece 7 may be in the order of 2 mm. Modifications are possible within the scope of the appended claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Making Paper Articles (AREA)

Abstract

A carton bottle comprises a sleeve-shaped main body (1) of a carton material and a plastic top (2) injection-molded thereon, the main body being formed of a longitudinally heat-sealed, sleeve-shaped blank (4). In a method at the manufacture of such a carton bottle for improving the plastic molding conditions at the junction between the main body (1) and the top (2), a scrap piece (7) of blank material is removed in the junction area, so that a nominal width (8) of the blank (4) in the junction area is accomplished irrespective of the greater real width thereof.

Description

AMETHOD ATTHEMANUFACTURE OFACARTONBOTTLE
Technical Field The present invention relates to a method at the manufacture of a carton bottle, comprising a sleeve-shaped main body of a carton material and a plastic top injection- molded thereon, the main body being formed of a longitudinally heat-sealed, sleeve- shaped blank, for improving the plastic molding conditions at the junction between the main body and the top. Background of the Invention
A so-called carton bottle can thus in essence be manufactured by injection- molding a plastic top on a main body, comprising a blank cut from a carton material web and formed into a sleeve or cylinder and subsequently longitudinally heat-sealed. An injection-molding tool may be provided with a notch for accommodating the double-thickness material at the longitudinal heat-seal.
The width of the carton material web may vary with as much as ±1 mm from the factory, which may lead to unsatisfactory results at the injection-molding of the top on the tool. Especially, excess plastic material may flow out at the injection-molding in the junction area to the heat-seal of the main body at its inside and/or outside. The main object of the invention is thus to improve the molding conditions at this junction, so that the above drawback is removed. The Invention
This is according to the invention accomplished in that a scrap piece of blank material is removed in the junction area, so that a nominal width of the blank in the junction area is accomplished irrespective of the greater real width thereof.
This nominal width is accordingly chosen to be less than any expected real width of the blank, and the dimensioning of the notch in the injection-molding tool is chosen so as to obtain optimal results with the nominal width. In practice a scrap piece width of some 2 mm may be suitable. The scrap piece is preferably removed in conjunction with the cutting of the blank from a carton web.
The scrap piece is preferably removed by punching.
By the method according to the invention it may be possible to bring down the width tolerance of the blank from +1 mm to ±0.1 mm, so that the desirable result may be obtained. Brief Description of the Drawings
The invention will be described in further detail below under reference to the accompanying drawings, in which Fig 1 is an isometric view of a so-called carton bottle,
Fig 2 is an isometric view of an injection-molding tool for the top of the bottle shown in Fig 1,
Fig 3 is a schematic view of a carton web for accomplishing a carton bottle of Fig 1, and Fig 4 schematically illustrates a processing step for the carton web shown in
Fig 3.
Detailed Description of an Embodiment
The present invention relates to a so-called carton bottle, shown in Fig 1. The bottle has a main body 1 of a carton material and a plastic top or lid 2, which is preferably provided with a screw-on cap 3.
In a known way, the manufacturing and filling process for this bottle may comprise the following main steps: from a carton web, one blank 4 (Fig 3) at a time with a suitable length is cut, - the blank is formed into a mainly cylindrical shape or into a sleeve around a mandrel and heat sealed along its longitudinal edge,
- the formed carton cylinder or sleeve is placed on a tool 5, as shown in Fig 2, the tool being part of an injection-molding machine,
- the plastic top 2 is injection-molded on the carton sleeve so as to form an integrated unit therewith,
- the cap 3 is optionally added to the top 2,
- the formed bottle is filled with a suitable fluid from its bottom end, and
- the bottle bottom is heat-sealed, preferably to form a flat surface, on which the package or bottle may stand. The invention is concerned with the step of injection-molding the top 2 on the carton sleeve.
For accommodating the longitudinal double material thickness of the overlapping heat seal of the carton sleeve, the tool 5 is provided with a corresponding longitudinal notch 6 at its lower part. The width of the carton web, from which the blank 4 is cut, may in practice differ rather considerably from its nominal width. If such a width, difference occurs, there is a tendency for excess plastic material to form at the double material thickness area or overlap area on the inside and/or outside of the carton sleeve at the junction to the top 2 at the injection-molding.
The main object of the invention is to obviate this negative forming of excess plastic material. This object is accomplished in the following way.
A nominal width for the carton web is determined, which is less than the lowest experienced width, in practice, and the position and dimensioning of the tool notch 6 is adapted to this nominal width for accomplishing an optimal injection- molding result but also an overlap in the longitudinal heat-sealing with good tolerances. Preferably in conjunction with the cutting of the carton web into a blank 4 a narrow scrap piece 7 is removed, preferably by punching, from one edge portion of the blank in the area intended for positioning in the mold notch 6, so that the blank width 8 in this area becomes the nominal width. The width of the scrap piece 7 may be in the order of 2 mm. Modifications are possible within the scope of the appended claims.

Claims

1. A method at the manufacture of a carton bottle, comprising a sleeve-shaped main body (1) of a carton material and a plastic top (2) injection-molded thereon, the main body being formed of a longitudinally heat-sealed, sleeve-shaped blank (4), for improving the plastic molding conditions in the area of the junction between the main body (1) and the top (2), characterized in that a scrap piece (7) of blank material is removed in the junction area, so mat a nominal width (8) of the blank (4) in the junction area is accomplished irrespective of the greater real width thereof.
2. A method according to claim 1, wherein the scrap piece (7) is removed in conjunction with the cutting of the blank (4) from a carton web.
3. A method according to claim 1, wherein the scrap piece (7) is removed by punching.
4. A carton bottle manufactured by a method according to any of the preceding claims.
PCT/SE2010/000104 2009-05-06 2010-04-21 A method at the manufacture of a carton bottle WO2010128918A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0900609A SE533816C2 (en) 2009-05-06 2009-05-06 Process for making cardboard bottles
SE0900609-9 2009-05-06

Publications (1)

Publication Number Publication Date
WO2010128918A1 true WO2010128918A1 (en) 2010-11-11

Family

ID=43050268

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2010/000104 WO2010128918A1 (en) 2009-05-06 2010-04-21 A method at the manufacture of a carton bottle

Country Status (2)

Country Link
SE (1) SE533816C2 (en)
WO (1) WO2010128918A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016202684A1 (en) * 2015-06-18 2016-12-22 Tetra Laval Holdings & Finance S.A. Packaging container with gripping support surface
US9862701B2 (en) 2014-09-25 2018-01-09 Araxes Pharma Llc Inhibitors of KRAS G12C mutant proteins
US9988357B2 (en) 2015-12-09 2018-06-05 Araxes Pharma Llc Methods for preparation of quinazoline derivatives
US10246424B2 (en) 2015-04-10 2019-04-02 Araxes Pharma Llc Substituted quinazoline compounds and methods of use thereof
US10414757B2 (en) 2015-11-16 2019-09-17 Araxes Pharma Llc 2-substituted quinazoline compounds comprising a substituted heterocyclic group and methods of use thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3299605A (en) * 1963-02-14 1967-01-24 Tetra Pak Ab Method of making packages from a web of material
WO2003061940A1 (en) * 2002-01-21 2003-07-31 Tetra Laval Holdings & Finance S.A. A method and an apparatus for the production of plastic parts
WO2007106006A1 (en) * 2006-03-10 2007-09-20 Tetra Laval Holdings & Finance S.A. Method of producing a package
WO2008004932A1 (en) * 2006-07-05 2008-01-10 Tetra Laval Holdings & Finance S.A. Method and device for injection moulding a packaging container portion

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3299605A (en) * 1963-02-14 1967-01-24 Tetra Pak Ab Method of making packages from a web of material
WO2003061940A1 (en) * 2002-01-21 2003-07-31 Tetra Laval Holdings & Finance S.A. A method and an apparatus for the production of plastic parts
WO2007106006A1 (en) * 2006-03-10 2007-09-20 Tetra Laval Holdings & Finance S.A. Method of producing a package
WO2008004932A1 (en) * 2006-07-05 2008-01-10 Tetra Laval Holdings & Finance S.A. Method and device for injection moulding a packaging container portion

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9862701B2 (en) 2014-09-25 2018-01-09 Araxes Pharma Llc Inhibitors of KRAS G12C mutant proteins
US10246424B2 (en) 2015-04-10 2019-04-02 Araxes Pharma Llc Substituted quinazoline compounds and methods of use thereof
WO2016202684A1 (en) * 2015-06-18 2016-12-22 Tetra Laval Holdings & Finance S.A. Packaging container with gripping support surface
CN107787293A (en) * 2015-06-18 2018-03-09 利乐拉瓦尔集团及财务有限公司 With the packing container for grasping support surface
RU2705141C2 (en) * 2015-06-18 2019-11-05 Тетра Лаваль Холдингз Энд Файнэнс С.А. Packing container with gripping support surface
US10513366B2 (en) 2015-06-18 2019-12-24 Tetra Laval Holdings & Finance S.A. Packaging container with gripping support surface
US10414757B2 (en) 2015-11-16 2019-09-17 Araxes Pharma Llc 2-substituted quinazoline compounds comprising a substituted heterocyclic group and methods of use thereof
US9988357B2 (en) 2015-12-09 2018-06-05 Araxes Pharma Llc Methods for preparation of quinazoline derivatives

Also Published As

Publication number Publication date
SE0900609A1 (en) 2010-11-07
SE533816C2 (en) 2011-01-25

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