EP0108264A1 - Machine pour fabriquer des godets en papier - Google Patents

Machine pour fabriquer des godets en papier Download PDF

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Publication number
EP0108264A1
EP0108264A1 EP83110015A EP83110015A EP0108264A1 EP 0108264 A1 EP0108264 A1 EP 0108264A1 EP 83110015 A EP83110015 A EP 83110015A EP 83110015 A EP83110015 A EP 83110015A EP 0108264 A1 EP0108264 A1 EP 0108264A1
Authority
EP
European Patent Office
Prior art keywords
foot part
cup
machine according
foot
machine
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Withdrawn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
EP83110015A
Other languages
German (de)
English (en)
Inventor
Friedemann Dipl.-Ing. Majer
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.)
Rissen Maschinenfabrik GmbH
Original Assignee
Rissen Maschinenfabrik GmbH
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 Rissen Maschinenfabrik GmbH filed Critical Rissen Maschinenfabrik GmbH
Publication of EP0108264A1 publication Critical patent/EP0108264A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • B31B50/59—Shaping sheet material under pressure
    • B31B50/594—Modifying the shape of tubular boxes or of paper bottle necks
    • 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
    • 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
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/10—Shape of rigid or semi-rigid containers having a cross section of varying size or shape, e.g. conical or pyramidal
    • 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
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/20—Shape of rigid or semi-rigid containers having a curved cross section, e.g. circular
    • 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
    • B31B50/60—Uniting opposed surfaces or edges; Taping

Definitions

  • the invention relates to a machine for producing cup containers from fiber material, such as paper, optionally coated with thermoplastic, which have a conical shell part and a cup-shaped base part, the frame of which is connected to the shell part in a foot part formed at its narrower end, with a Device for cylindrically shaping the foot part, which comprises an annular deformation tool acting on the foot part from the outside.
  • the unpublished prior art also includes a method by which it is possible to subsequently attach such a stacking edge to conical cup containers made of thermoplastic material by means of a drawing process.
  • the jacket section to be deformed is subjected to the drawing action of a molding edge that vibrates with ultrasound.
  • the action of ultrasound on the plastic material under high specific pressure on the drawing edge softens it, so that it can flow over the molding edge and can thereby be deformed to a smaller extent.
  • This method cannot be applied to paper and similar fiber materials because the effect of ultrasound does not soften the material. Rather, a conical paper jacket opposes the ultrasonic drawing ring, as in other drawing processes, with great resistance and is finally folded or even destroyed without the desired deformation having occurred.
  • the object of the invention is to improve the machine mentioned at the outset in such a way that the formation of folds in the region of the container foot part is avoided.
  • the solution according to the invention consists in that the shaping tool is formed by an ultrasonic drawing ring, the toothed inner circumference of which has a length which is at least substantially the same as the undeformed circumferential length of the foot part to be deformed.
  • the invention is based on the idea that the wrinkle formation to be expected on paper is not eliminated, but rather to steer in predetermined paths.
  • the changing elevations and depressions on the inner circumference of the drawing ring cause the folds to form as waves in the paper in accordance with the shape of the drawing edge of the drawing ring, these waves being so even and with such low amplitudes by suitably fine dimensioning of the elevations and depressions on the drawing edge can be distributed over the scope so that the desired overall shape is not affected.
  • the waves allow the paper to practically maintain its original circumferential length and still assume a smaller diameter.
  • the resulting wave form of the molded section drawn into the conical jacket is welcome or tolerable in the end product. If you want to avoid them, you have the option of subsequently smoothing them using a pressing tool, for example by pressing the drawn-in corrugated shaped section against a mandrel circumference supporting it from the outside by pressing jaws acting from the outside.
  • the deformation of the foot part is combined with the measures required for inserting and connecting the bottom part, in that the device for cylindrically shaping the foot part is arranged after a device for inserting the bottom part and, if necessary, for flanging a protruding jacket edge around the bottom frame.
  • the ultrasonic drawing process then causes the deformation of the foot part involved in the formation Section of the conical cup shell an approximation of the foot section of the cup shell and the base part to be connected.
  • the machine according to the invention has advantages in terms of improved soil tightness. It is customary to introduce the drawn bottom through the narrow end of the jacket while the latter is held on a conical mandrel, in order to then flare the projecting end of the jacket around the bottom frame and thus compress it. So that the bottom can be pushed through the narrow jacket end, its diameter must not be larger than that of this narrow jacket end. It is therefore also smaller than the diameter in that area of the cup in which the bottom surface must subsequently lie. During the pressing process, the frame is then widened again so that the base assumes the desired larger diameter. The edge at which the bottom surface merges into the frame migrates further outwards from the point formed in the drawing process. The frame material is stretched in this area.
  • the invention allows this Avoid widening the bottom frame after inserting it into the jacket, because thanks to the preforming of the jacket there is no undercut that makes the widening of the bottom frame necessary. Rather, the bottom frame can retain the shape that it had received in the drawing process. This eliminates the stress that is made responsible for the development of hairline cracks. A much greater security against leaks is thus achieved.
  • the two cups stacked one inside the other according to FIG. 1 each consist of a casing 1 with a conical, upper casing part 2 and an essentially cylindrical foot part 3, as well as from a base part which does not appear in this figure and whose base surface may be somewhere in the base part, for example in the standing surface 4 of the cup.
  • the conical shell part 2 and the foot part 3 of the shell consist in one piece of the same blank part made of paper, for example, laminated or coated with thermoplastic material such as polyethylene or polystyrene.
  • the step 5 at the transition between the upper casing part 2 and the foot part 3 forms a stacking edge on the inside.
  • the foot part 3 has a cross-sectional shape, which is indicated schematically in FIG. 2 and is characterized by waves running parallel to the cup axis in the part of the jacket forming its outer surface, which are exaggerated in FIG. 2. It has a reduced outer circumferential length compared to the undeformed jacket shape indicated by dash-dotted lines in FIG. 1. The circumferential length difference is absorbed by the corrugation.
  • FIG. 3 illustrates the drawing ring 7 used for producing the foot part drawn in relative to the conical part, which has an axially parallel toothing 8 on the inner circumference.
  • a suitable mandrel To deform the foot part in the axial direction, it is pushed over the jacket from the narrower side of the jacket under the influence of ultrasound, which can be supported on the inside in particular in the area of step 5 by a suitable mandrel.
  • this stage can be more or less angularly produced, as it appears most appropriate according to the function or the aesthetic requirements.
  • the toothing 8 of the drawing ring under the influence of the ultrasonic vibrations, causes a corresponding folding in the drawn foot part 3 it is not necessary that the toothing 8 is absolutely the same as the shape of the desired shafts, because it is sufficient if the projections provided on the inner circumference of the drawing ring, which are evenly distributed over the circumference, ensure that a multiplicity of inward wave or wrinkle formation is stimulated, which allow the carton to reduce the diameter desired by the drawing process.
  • the shafts can also be correspondingly small. They are therefore hardly noticeable even if a possible smoothing is not subsequently carried out.
  • a hollow bottom is provided with a bottom part 10, the bottom surface of which is raised from the standing surface 4 of the cup. It has a frame 11 drawn essentially at right angles, which is pressed in the foot part 3 between the outer and inner parts 12 and 13 formed by the jacket.
  • the manufacturing process of the foot part shown in FIG. 4 results from the sequence of steps shown in FIGS. 5 to 8.
  • the jacket part 2 is held on a correspondingly conical mandrel 14, the edge 15 provided to form the foot part projecting freely beyond the mandrel at the narrower end.
  • the casing base part is deformed by pushing the internally toothed ultrasonic drawing ring 7 axially onto the base part 3 in the direction of the arrow, while expediently simultaneously or immediately afterwards, as long as the drawing ring 7 still surrounds the base part 3 as a counter bearing, by means of a press roller 18 , which rotates on a crank, not shown, and is pressed from the inside against the foot part 3, a pre-pressing of the foot part 3 is carried out, which brings about a close approximation of the dimensions of the foot part to its final dimensions. 8, the largest possible cylindrical sonotrode 19 can then be inserted into the foot part 3.
  • Press jaws 20, which complement each other to form a ring, are then brought from the outside to the foot part 3 in order to press it against the circumference of the sonotrode 19 from the outside.
  • the oscillation of the sonotrode 19 leads to the development of heat which causes the sealing within the foot part 3.
  • the dimensions of the drawing ring 7 and the final dimensions of the foot part 3 of the cup can be chosen so that the frame 11 in the pressing processes according to FIGS. 7 and 8 no longer has to undergo any or no significant expansion.
  • the risk of hairline cracks occurring in the surface protection of the base part 10 is thereby decisively reduced. 8
  • press jaws 20 with a smooth inner circumferential surface can be used, so that the waves or folds formed in the foot part 3 during the drawing process according to FIG. 7 are eliminated again.
  • the ultrasonic drawing tool is used in connection with an inner tool corresponding to the desired shape of the cup base in the manner of a counter-holder. 7, this inner tool is formed by the press roller 18. If a stacking edge is to be formed in a cup according to FIG. 1, in which the bottom surface of the bottom part lies in the footprint of the foot part, the inner tool is expediently from a cylindrical projection on the mandrel carrying the cup during the deformation process.
  • the deformation of the conical container shell is only carried out to form a stacking edge, which is generally only of interest if a floor with a deep-lying bottom surface is provided, the deformation for the formation of the stacking edge is expediently carried out after the base has been inserted.
  • the floor stiffens the coat, making the process easier.

Landscapes

  • Making Paper Articles (AREA)
EP83110015A 1982-11-05 1983-10-06 Machine pour fabriquer des godets en papier Withdrawn EP0108264A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3240810A DE3240810C2 (de) 1982-11-05 1982-11-05 Maschine zum Herstellen von Becherbehältern aus Papier
DE3240810 1982-11-05

Publications (1)

Publication Number Publication Date
EP0108264A1 true EP0108264A1 (fr) 1984-05-16

Family

ID=6177322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110015A Withdrawn EP0108264A1 (fr) 1982-11-05 1983-10-06 Machine pour fabriquer des godets en papier

Country Status (2)

Country Link
EP (1) EP0108264A1 (fr)
DE (1) DE3240810C2 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8146796B2 (en) 2001-01-30 2012-04-03 Seda S.P.A. Cardboard container for drinks and process therefor
US8146797B2 (en) 2005-11-11 2012-04-03 Seda S.P.A. Insulated cup
US8360263B2 (en) 2005-04-15 2013-01-29 Seda S.P.A. Insulated container, method of fabricating same and apparatus for fabricating
US8393886B2 (en) 2005-11-14 2013-03-12 Seda S.P.A. Device for producing a stacking projection and container with same
US8490792B2 (en) 2006-12-05 2013-07-23 Seda S.P.A. Package
EP2952340A1 (fr) * 2014-06-06 2015-12-09 Michael Hörauf Maschinenfabrik GmbH u. Co. KG Procédé destiné à la fabrication d'un gobelet
US9783359B2 (en) 2005-09-08 2017-10-10 Seda S.P.A. Double-walled cup
CN108688236A (zh) * 2018-05-23 2018-10-23 浙江庞度环保科技有限公司 纸杯机的杯身粘合装置
DE102021126861A1 (de) 2021-10-15 2023-04-20 Gebrüder Leonhardt GmbH & Co. KG Blema Kircheis Deckel sowie Verfahren und Vorrichtung zur Herstellung eines Deckels

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1012217A (fr) * 1900-01-01
FR1181342A (fr) * 1957-08-20 1959-06-15 Lily Cups Overseas Ltd Perfectionnements apportés aux récipients ou gobelets emboîtables et à leurs procédés de fabrication
US3268143A (en) * 1961-09-13 1966-08-23 Continental Can Co Paper cup with outside caulking on bottom
GB1575979A (en) * 1976-01-28 1980-10-01 Ex Cell O Corp Apparatus and method for vibration sealing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1561535A1 (de) * 1967-03-23 1970-10-01 Rissen Gmbh Maschf Verfahren zum Schutz der Schnittkanten von Behaeltern aus Faserstoffen
DE2802615C2 (de) 1978-01-21 1983-03-03 Maschinenfabrik Rissen Gmbh, 2000 Hamburg Verfahren zur Herstellung insbesondere konischer oder zylindrischer Behälter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1012217A (fr) * 1900-01-01
FR1181342A (fr) * 1957-08-20 1959-06-15 Lily Cups Overseas Ltd Perfectionnements apportés aux récipients ou gobelets emboîtables et à leurs procédés de fabrication
US3268143A (en) * 1961-09-13 1966-08-23 Continental Can Co Paper cup with outside caulking on bottom
GB1575979A (en) * 1976-01-28 1980-10-01 Ex Cell O Corp Apparatus and method for vibration sealing

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8146796B2 (en) 2001-01-30 2012-04-03 Seda S.P.A. Cardboard container for drinks and process therefor
US8360263B2 (en) 2005-04-15 2013-01-29 Seda S.P.A. Insulated container, method of fabricating same and apparatus for fabricating
US9783359B2 (en) 2005-09-08 2017-10-10 Seda S.P.A. Double-walled cup
US8146797B2 (en) 2005-11-11 2012-04-03 Seda S.P.A. Insulated cup
US8393886B2 (en) 2005-11-14 2013-03-12 Seda S.P.A. Device for producing a stacking projection and container with same
US8490792B2 (en) 2006-12-05 2013-07-23 Seda S.P.A. Package
EP2952340A1 (fr) * 2014-06-06 2015-12-09 Michael Hörauf Maschinenfabrik GmbH u. Co. KG Procédé destiné à la fabrication d'un gobelet
US9944038B2 (en) 2014-06-06 2018-04-17 Michael Hoerauf Maschinenfabrik Gmbh Und Co. Kg Method for producing a cup
CN108688236A (zh) * 2018-05-23 2018-10-23 浙江庞度环保科技有限公司 纸杯机的杯身粘合装置
DE102021126861A1 (de) 2021-10-15 2023-04-20 Gebrüder Leonhardt GmbH & Co. KG Blema Kircheis Deckel sowie Verfahren und Vorrichtung zur Herstellung eines Deckels

Also Published As

Publication number Publication date
DE3240810A1 (de) 1984-05-10
DE3240810C2 (de) 1986-01-30

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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Effective date: 19840330

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Withdrawal date: 19850822

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Inventor name: MAJER, FRIEDEMANN, DIPL.-ING.