EP2955011B1 - Procédé et dispositif de fabrication d'un gobelet - Google Patents

Procédé et dispositif de fabrication d'un gobelet Download PDF

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Publication number
EP2955011B1
EP2955011B1 EP15168688.8A EP15168688A EP2955011B1 EP 2955011 B1 EP2955011 B1 EP 2955011B1 EP 15168688 A EP15168688 A EP 15168688A EP 2955011 B1 EP2955011 B1 EP 2955011B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
base
relative position
covering
cup
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.)
Not-in-force
Application number
EP15168688.8A
Other languages
German (de)
English (en)
Other versions
EP2955011A1 (fr
Inventor
Uwe Messerschmid
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.)
Michael Hoerauf Maschinenfabrik GmbH and Co KG
Original Assignee
Michael Hoerauf Maschinenfabrik GmbH and Co KG
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 Michael Hoerauf Maschinenfabrik GmbH and Co KG filed Critical Michael Hoerauf Maschinenfabrik GmbH and Co KG
Publication of EP2955011A1 publication Critical patent/EP2955011A1/fr
Application granted granted Critical
Publication of EP2955011B1 publication Critical patent/EP2955011B1/fr
Not-in-force 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
    • 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 articles ; Making three-dimensional articles
    • B31D5/0086—Making hollow objects
    • 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
    • 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
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/44—Folding sheets, blanks or webs by plungers moving through folding dies

Definitions

  • the invention relates to a method for producing a cup from a conical sleeve and a cup-shaped bottom, wherein the bottom has a bottom surface and an outgoing from the bottom surface peripheral wall and from a larger opening of the conical sleeve forth in the direction of the smaller opening of the sleeve in the sleeve is inserted.
  • the invention also relates to a device for producing a cup from a conical sleeve and a cup-shaped bottom, wherein the device for inserting the bottom is formed by a larger opening of the conical sleeve in the direction of the smaller opening of the sleeve in the sleeve.
  • the U.S. Patent No. 3,063,347 shows an apparatus for producing a cup of a conical sleeve and a cup-shaped bottom with a conical mandrel on which the sleeve can be arranged.
  • a conical mandrel on which the sleeve can be arranged.
  • Within the mandrel is slidably disposed in the axial direction of a punch, which serves to hold the bottom when the bottom is connected to the sleeve.
  • the punch serves to push down the finished cup from the mandrel.
  • US patent US 4,100,842 shows an apparatus for producing a cup of a conical sleeve and a cup-shaped bottom with a conical mandrel on which the sleeve can be arranged and with a stamp for holding the bottom.
  • the at least partially covering a radially outer peripheral surface of the wall of the cup-shaped bottom with an annular cover sleeve arranging the cover and the bottom in a predefined relative position between the sleeve and the bottom, the extraction of the cover between an inner side of the sleeve and the radially outer peripheral surface of the bottom, wherein the bottom remains in the predefined relative position, and provided the substantially liquid-tight connection of the radially outer circumferential surface of the bottom and the inside of the sleeve.
  • an annular cover sleeve between a radially outer peripheral surface of the wall of the cup-shaped bottom and the inside of the sleeve is arranged.
  • the outer side of the cover sleeve can be selected with respect to the material or the surface so that the cover sleeve can slide smoothly along the inside of the sleeve. Only when the bottom has reached a predefined relative position to the sleeve, the cover sleeve between the peripheral wall and the inside of the sleeve is pulled out.
  • the bottom and the sleeve relative to each other but already at rest and at the intended relative position.
  • a possible adhesion of soil and sleeve in this position is thus harmless and even desirable in the subsequent step of liquid-tight bonding.
  • the covering sleeve can be delivered together with the ground into the sleeve or the covering sleeve can rest relative to the sleeve and the bottom is pushed into the covering sleeve.
  • the invention is thus designed in a special way for materials whose surfaces have a high coefficient of friction to each other.
  • This can be, for example, coated paper material or coated cardboard, for example, but also paper-like to be processed flat plastic material.
  • Flat plastic materials are, for example, also plastic laminates.
  • the invention is very well suited for paper-like plastic material to be processed, but not specifically designed for paper-like plastic material to be processed.
  • the predefined relative position as seen in the longitudinal direction of the sleeve, corresponds to the relative position of the base and sleeve on the finished cup.
  • bottom and sleeve relative to each other must not be moved after the cover sleeve between the peripheral wall of the bottom and the inside of the sleeve has been pulled out. Minor displacements during liquid-tight bonding of the bottom and sleeve are excluded.
  • an outer peripheral surface of the cover sleeve is located at least in sections on the inner side of the sleeve or is arranged directly adjacent to the inner side of the sleeve.
  • the peripheral wall of the bottom and the inside of the sleeve can be brought very close to each other without being in direct contact.
  • the bottom can be arranged under slight bias in the cover sleeve, so that the peripheral wall slightly widened after pulling out of the cover and then the peripheral wall of the bottom rests flat against the inside of the sleeve.
  • an apparatus for producing a cup from a conical sleeve and a cup-shaped bottom with the features of claim 5 is provided.
  • Advantageous developments of the invention are specified in the subclaims.
  • the device for producing a cup from a conical sleeve and a cup-shaped bottom for inserting the bottom of a larger opening of the conical sleeve forth in the direction of the smaller opening of the sleeve is formed in the sleeve.
  • the device has an annular cover sleeve whose inner circumference is so large that a peripheral wall of the cup-shaped bottom bears against the inner circumference.
  • the device comprises means for moving the cover sleeve in and against a longitudinal direction of the sleeve and means for retaining the bottom in a predefined relative position to the sleeve while pulling the cover sleeve between the inside of the sleeve and the peripheral wall of the bottom.
  • the production of a cup from a conical sleeve and a cup-shaped bottom is greatly facilitated, especially if the materials or the surfaces of the bottom and sleeve have a high coefficient of friction to each other and therefore the adhesion of the bottom of the sleeve at a relative movement is to be feared. This can occur, for example, in liquid-tight coated paper material or in paper-like plastic materials to be processed.
  • a stamp for holding the bottom wherein the punch has an actuating rod and a voltage applied to the ground stamp surface, wherein the cover sleeve is slidably mounted on the actuating rod of the punch.
  • the cover can be arranged for example exactly concentric with the actuating rod and also during withdrawal of the cover between an inner side of the sleeve and the radially outer circumferential surface of the bottom is the cover safely guided.
  • the device according to the invention can thereby achieve high speeds and thus low cycle times in the production of cups.
  • Fig. 1 shows a schematic sectional view of an apparatus 10 for producing a cup of a conical sleeve 12 and a cup-shaped bottom 14.
  • the device 10 may be part of a larger, not shown machine and for example, several of the devices 10 may be arranged on a star wheel.
  • the sleeve 12 has been produced by winding and gluing or sealing in the region of a non-illustrated overlap of a flat segment.
  • the pot-shaped bottom 14 has also been produced from a flat segment.
  • the sleeve 12 is arranged on a likewise conical mandrel 16, which has a central guide bore, in which a punch 18 is guided for holding the bottom 14.
  • the punch 18 has an actuating rod 20 and a stamp plate 21 with a stamp surface 22.
  • the stamp surface 22 is located at an in Fig. 1 overhead floor surface 30 of the bottom 14 at.
  • This overhead bottom surface 30 of the bottom 14 defines on the finished cup a lower boundary of the interior of the cup to be filled with liquid.
  • From the bottom surface of the bottom 14 is a peripheral peripheral wall 24 extends, which extends at right angles to the bottom surface.
  • the bottom 14 is replaced by a pot-like shape.
  • the actuating rod 18 is provided with a through bore 26.
  • a negative pressure is temporarily applied during the production process.
  • the through-bore 26 opens into the punch surface 22, so that after applying a negative pressure to the bore 26, the bottom surface of the bottom 14 is pulled against the punch surface 22.
  • the bottom 14 can thereby be safely inserted into the sleeve 12 without the risk that it falls off the stamp surface 22.
  • an air outlet 28 which is adapted to blow warm air against the inside of the sleeve to facilitate deformation of the sleeve, and more specifically, turning the lower end of the sleeve 12 about the peripheral wall 24 of the bottom 14.
  • radially warm air 29 flows out to heat the inside of the sleeve 12 in a region on which the peripheral wall 24 of the bottom 14 comes to rest below.
  • a sealable coating on the inside of the sleeve 12 can be heated, in order then to allow the peripheral wall 24 to be sealed, and thus a fluid-tight connection of the circumferential wall 24 and sleeve 12.
  • the enlarged detail II in Fig. 2 lets first recognize the stamp surface 22, against which the bottom surface 30 of the bottom 14 is sucked.
  • An outer side of the peripheral wall 24 of the bottom 14 is partially covered by an annular cover sleeve 32.
  • the cover sleeve 32 abuts against a radially outer peripheral surface of the peripheral wall 24 of the bottom 14.
  • the cover sleeve 32 prevents the radially outer surface of the peripheral wall 24 from coming into contact with an inner side 34 of the sleeve 12 before a predefined relative position of the bottom 14 and sleeve 12 is reached.
  • the annular cover sleeve 32 is provided with an annular mounting plate 36 whose central bore is matched to the outer diameter of the actuating rod 18.
  • the mounting plate 36 and the integrally connected with the mounting plate 36 annular cover sleeve 32 can thus be moved relative to the punch 18.
  • an underside of the mounting plate 36 abuts on an upper side of the stamp plate 21. With its upper side, the mounting plate 36 bears against a surface of the mandrel 16.
  • Fig. 2 The punch 18 is moved together with the bottom 14 and the sleeve 32 down.
  • FIG. 3 It is in Fig. 3 to recognize that starting from the state of Fig. 1 and the Fig. 2 the punch 18 has been moved down a path indicated by arrow 40 in FIG Fig. 3 is indicated. Because the top of the mounting plate 36 which is integrally connected to the annular cover sleeve 32 is now arranged at a distance from the mandrel 16. For this purpose, the actuating rod 18 has been displaced within the guide bore of the mandrel 16, as for example with reference to the upper end of the actuating rod 18, see Fig. 1 and Fig. 3 , is recognizable.
  • the enlarged detail IV Fig. 3 is in Fig. 4 and reveals that the annular cover sleeve 32 now rests on the one hand on the inside of the sleeve 12 and on the other hand on the radially outer peripheral surface of the peripheral wall 24 of the bottom 14.
  • the inner diameter of the cover sleeve 32 may be sized so that the bottom 14th is slightly compressed, so slightly rebounded after pulling out of the cover sleeve 32, so that then the peripheral wall 24 is substantially flat against the inside of the sleeve 12.
  • the peripheral wall 24 of the bottom 14 does not abut against the inside of the sleeve 12, although the bottom 14 and the sleeve 12 are arranged in a relative position to each other, they also take each other on the finished cup.
  • This punch 44 has a plurality of movable in the radial direction pressing jaws 46, which can be pressed by a centrally disposed actuator 48 radially outward.
  • a centrally disposed actuator 48 On the outside of the sleeve 12 is located in the region of the peripheral wall 24 of the bottom 14 on an outer side of the sleeve 12, a retaining ring 50 at. This retaining ring 50 provides an abutment when the pressing jaws 48 are moved radially outward to urge the peripheral wall 24 against the inside of the sleeve 12.
  • FIG. 6 shows the detail VI of Fig. 5 in an enlarged view.
  • the peripheral wall 24 of the bottom 14 is now flat on the inside of the sleeve 12, since the annular cover sleeve 32 was pulled up between the peripheral wall 24 and the inside of the sleeve 12.
  • the pressing jaws 46 and the retaining ring 50 now provide for a compression of the peripheral wall 24 with the inside of the sleeve 12 and thereby for a liquid-tight connection of the bottom 14 with the sleeve 12th
  • the presentation of the Fig. 7 shows another, on the state of Fig. 5 or 6 following process step.
  • the pressing jaws 46 and the retaining ring 50 have been removed.
  • the in Fig. 7 is pushed from below onto the sleeve 12, a circumferential stacking shoulder 54 is inserted into the sleeve 12.
  • This stack shoulder serves to reliably stack several cups in each other.
  • a certain counterweight when sliding the press ring 52 provides the annular cover sleeve 32, which in the state of Fig. 7 is disposed radially inside the press ring 52.
  • radially inwardly displaceable jaws 56 ensure that the lower edge 58 of the sleeve is turned radially inward.
  • the jaws 56 are in FIGS. 7 and 8 shown in its radially inner end position.
  • a the envelope of the lower edge 38 of the sleeve 12 causing radially inner edge of the jaw 56 is provided with a chamfer 57 which runs at a movement of the jaws 56 according to the arrows 55 on the lower edge 38 of the sleeve and the edge 38 by about 50 ° to 60 ° turns inside. Since all the jaws 56 have a chamfer 57, the edge 38 is turned inwards over its entire circumference.
  • Another turn of the edge 38 then approximately 180 ° is effected by a punch 60, which starting from the state of Fig. 7 is moved upward according to the arrow 61.
  • the turning over of the lower edge of the sleeve 12 is facilitated because, see Fig. 2 , the sleeve 12 has been previously heated in this envelope area.
  • the presentation of the Fig. 8 shows the detail VIII of the Fig. 7 in an enlarged view.
  • Fig. 10 shows the detail X the Fig. 9 in an enlarged view.
  • FIG. 12 shows the enlarged detail XII Fig. 11 .
  • Fig. 3 to 6 allows the annular cover sleeve to position the bottom and the sleeve 12 relative to each other so that they have already reached the provided on the finished cup relative position without touching the bottom 14 and the inside of the sleeve 12.
  • touch see Fig. 4 , the radially outer surface of the peripheral wall 24 of the bottom 14 and the inside of the sleeve 12 not until the predefined relative position is reached.
  • a possible high coefficient of friction between the material or the surface of the bottom 14 and the inside of the sleeve 12 does not hinder the manufacturing process of the cup.

Landscapes

  • Making Paper Articles (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)

Claims (6)

  1. Procédé de fabrication d'un gobelet à partir d'une manche conique (12) et d'un fond en forme de pot (14), le fond (14) présentant une surface de fond (30) et une paroi périphérique partant de la surface de fond (30) et étant inséré dans la manche (12) à partir d'une plus grande ouverture de la manche conique (12) dans la direction de la plus petite ouverture de la manche (12), comprenant les étapes suivantes:
    - recouvrement au moins partiel d'une surface périphérique, située radialement à l'extérieur, de la paroi du fond en forme de pot (14) avec une manche de recouvrement annulaire (32),
    - disposition de la manche de recouvrement (32) et du fond (14) dans une position relative prédéfinie entre la manche (12) et le fond (14),
    - enlèvement de la manche de recouvrement (32) entre un côté intérieur de la manche (12) et la surface périphérique, située radialement à l'extérieur, du fond (14), le fond (14) restant dans la position relative prédéfinie, et
    - connexion sensiblement étanche aux liquides de la surface périphérique, située radialement à l'extérieur, du fond (14) et du côté intérieur de la manche (12).
  2. Procédé selon la revendication 1, dans lequel la position relative prédéfinie, vue au moins dans la direction longitudinale de la manche (12), correspond à la position relative du fond (14) et de la manche (12) sur le gobelet fini.
  3. Procédé selon la revendication 1 ou 2, caractérisé par le rapprochement de la manche de recouvrement (32) conjointement avec le fond (14) dans la direction de la plus petite ouverture de la manche, jusqu'à ce que la position relative prédéfinie soit atteinte.
  4. Procédé selon la revendication 1, 2 ou 3, dans lequel, dans la position relative prédéfinie, une surface périphérique, située à l'extérieur, de la manche de recouvrement (32) s'applique au moins en partie contre le côté intérieur de la manche (12), ou est disposée en position immédiatement adjacente au côté intérieur de la manche (12).
  5. Dispositif de fabrication d'un gobelet à partir d'une manche conique (12) et d'un fond en forme de pot (14), comprenant un mandrin conique (16) sur lequel peut être disposée la manche (12) et comprenant un dispositif pour fixer le fond (14), caractérisé en ce que le dispositif est réalisé pour insérer le fond (14) dans la manche (12) depuis une plus grande ouverture de la manche conique (12) dans la direction de la plus petite ouverture de la manche (12), comprenant une manche de recouvrement annulaire (32), dont la périphérie intérieure a une dimension telle qu'une paroi périphérique, située radialement à l'extérieur, du fond en forme de pot (14) puisse s'appliquer contre la périphérie intérieure, comprenant un dispositif pour déplacer la manche de recouvrement (32) dans la direction longitudinale de la manche (12) et dans la direction opposée, ainsi que par rapport au mandrin (16), le dispositif étant réalisé pour fixer le fond dans une position relative prédéfinie par rapport à la manche (12) dans le cas d'un enlèvement simultané de la manche de recouvrement (32) entre le côté intérieur de la manche (12) et la paroi périphérique du fond (14).
  6. Dispositif selon la revendication 5, caractérisé par un poinçon (18) pour retenir le fond (14), le poinçon (18) présentant une tige d'actionnement (20) et une surface de poinçon (22) s'appliquant contre le fond (14), la manche de recouvrement (32) étant disposée de manière déplaçable sur la tige d'actionnement (20) du poinçon (18).
EP15168688.8A 2014-06-06 2015-05-21 Procédé et dispositif de fabrication d'un gobelet Not-in-force EP2955011B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014210961.2A DE102014210961A1 (de) 2014-06-06 2014-06-06 Verfahren und Vorrichtung zum Herstellen eines Bechers

Publications (2)

Publication Number Publication Date
EP2955011A1 EP2955011A1 (fr) 2015-12-16
EP2955011B1 true EP2955011B1 (fr) 2017-09-13

Family

ID=53365744

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15168688.8A Not-in-force EP2955011B1 (fr) 2014-06-06 2015-05-21 Procédé et dispositif de fabrication d'un gobelet

Country Status (5)

Country Link
US (1) US10112359B2 (fr)
EP (1) EP2955011B1 (fr)
CN (1) CN105269871B (fr)
BR (1) BR102015013147A2 (fr)
DE (1) DE102014210961A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109940923A (zh) * 2019-03-22 2019-06-28 李晓鹏 一种纸巾容器的加工工艺

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Publication number Priority date Publication date Assignee Title
US2169345A (en) * 1937-05-24 1939-08-15 Jagenberg Werke Ag Method and machine for producing paper containers
US2216331A (en) * 1938-10-28 1940-10-01 Us Envelope Co Method of and apparatus for producing paper cups
US3063347A (en) * 1960-03-31 1962-11-13 Hudson Pulp & Paper Corp Cup making machine
US3157339A (en) * 1961-07-18 1964-11-17 Continental Can Co Paper cup with caulked bottom and method of making
US3342113A (en) * 1965-03-26 1967-09-19 Donald W Baumgartner Method of making two-piece paper cups
US3602690A (en) * 1968-10-03 1971-08-31 Maryland Cup Corp A quick acting air heater
US3673033A (en) * 1970-02-02 1972-06-27 Sweethart Plastics Inc Method for making disposable plastic bucket
US4100842A (en) * 1977-05-18 1978-07-18 Phillips Petroleum Company Apparatus for forming a container
JPS58163641A (ja) 1982-03-24 1983-09-28 大日本印刷株式会社 容器底部の成形方法および成形装置
US4409045A (en) * 1982-07-20 1983-10-11 Maryland Cup Corporation Method and apparatus for sealing the sidewall and bottom seam portions of two-piece containers during manufacture thereof
US5507640A (en) * 1992-12-11 1996-04-16 Amoco Corporation Apparatus and method useful in manufacture of two piece cups
JP4019728B2 (ja) 2002-02-13 2007-12-12 凸版印刷株式会社 カップ型紙容器底部の成形方法と該成形方法により作製したカップ型紙容器
EP1785265A1 (fr) 2005-11-14 2007-05-16 SEDA S.p.A. Dispositif pour former un élément en saillie d'empilage sur une parois d'un récipient et récipient avec un tel élément
TW201345804A (zh) * 2012-02-01 2013-11-16 Toppan Printing Co Ltd 漏斗零件及使用漏斗零件之包裝容器的製造方法

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
CN105269871B (zh) 2019-11-15
EP2955011A1 (fr) 2015-12-16
CN105269871A (zh) 2016-01-27
BR102015013147A2 (pt) 2016-01-05
US20150352800A1 (en) 2015-12-10
DE102014210961A1 (de) 2015-12-17
US10112359B2 (en) 2018-10-30

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