EP2703302B1 - Dispositif d'alimentation destiné aux membranes de machines de sertissage sous vide - Google Patents

Dispositif d'alimentation destiné aux membranes de machines de sertissage sous vide Download PDF

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Publication number
EP2703302B1
EP2703302B1 EP12425143.0A EP12425143A EP2703302B1 EP 2703302 B1 EP2703302 B1 EP 2703302B1 EP 12425143 A EP12425143 A EP 12425143A EP 2703302 B1 EP2703302 B1 EP 2703302B1
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EP
European Patent Office
Prior art keywords
lids
vacuum
feeder
lid
vacuum chamber
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.)
Active
Application number
EP12425143.0A
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German (de)
English (en)
Other versions
EP2703302A1 (fr
Inventor
Catarina Pagani
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.)
Zanichelli Meccanica SpA
Original Assignee
Zanichelli Meccanica 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 Zanichelli Meccanica SpA filed Critical Zanichelli Meccanica SpA
Priority to EP12425143.0A priority Critical patent/EP2703302B1/fr
Priority to HUE12425143A priority patent/HUE027433T2/en
Publication of EP2703302A1 publication Critical patent/EP2703302A1/fr
Application granted granted Critical
Publication of EP2703302B1 publication Critical patent/EP2703302B1/fr
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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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2807—Feeding closures
    • 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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/025—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers
    • B65B31/028—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers closed by a lid sealed to the upper rim of the container, e.g. tray-like container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2653—Methods or machines for closing cans by applying caps or bottoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2692—Manipulating, e.g. feeding and positioning devices; Control systems
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers

Definitions

  • the present invention relates to a feeder particularly for feeding lids in vacuum crimping machines.
  • the present invention is within the field of crimping machines and particularly of crimping machines that can also work in vacuum for example to crimp cans for the canning industry.
  • the known and most widely used method of feeding the lids in crimping machines that operate in vacuum consists in introducing the lids, stacked one on top of the other, by means of a hole provided in the upper part of the vacuum chamber.
  • the lids are then separated by means of an adapted separator inside the vacuum chamber and are then fed to the crimping machine.
  • DE 29 00 724 A1 discloses an apparatus for coating substrates in a vacuum, comprising a first vacuum chamber for coating the substrate with a polymer layer and a second vacuum chamber for metal coating of the substrate.
  • a flexible film conveyor extends between the two vacuum chambers and carries a plurality of substrate carriers and a plurality of sealing blocks arranged in series. Between the two vacuum chambers there are arranged vacuum jaws spaced from the moving sealing blocks by a gap of 0.3 mm.
  • GB 2 143 910 A discloses a vacuum lock for introducing objects earned by a series of object earners into and out of a vacuum coating chamber.
  • the object carriers comprise a leading wedge shaped guide face and a trailing enlarged lip seal.
  • the object carriers are fed in succession in mutual contact through a lock channel that is fed with an auxiliary gas that inhibits air to penetrate into the channel and into the chamber.
  • US 2011/033267 discloses a lock device for introducing and removing PET bottles to and from a vacuum treatment chamber, including two transport chains arranged one upon the other which are provided with carrier plates for holding the bottles vertically and spaced at regular distances. Straight sections of the chains extend through lock channels provided respectively with suction openings and ventilation openings.
  • WO 2010/046636 discloses a vacuum processing apparatus for vacuum processing articles, including a plurality of article carriers for carrying the articles along an, enclosed passage.
  • the carriers comprise sealing means for sealing against an inner surface of the passage when carrying articles along the passage, whereby the sealing means resist the flow of gas past the sealing means along the passage into the vacuum processing region.
  • US 3,674,160 discloses a canning method and device where cans are filled with a product and a lid sealed thereto in an enclosure in which the pressure inside is different from the pressure outside.
  • An oscillating pressure lock with two pockets is provided.
  • a lid is introduced into one of the pockets in a first position where the pocket is only open to the outside. Then the lock is oscillated until the pocket reaches a position where it is open only to the inside of the enclosure and where the lid is removed from the pocket.
  • the aim of the present invention is to provide a feeder, particularly for feeding lids in vacuum crimping machines, that overcomes the limitations and obviates the above mentioned drawbacks, enabling to feed lids to a vacuum crimping machine simply and efficiently.
  • an object of the present invention is to provide a feeder that makes it possible to ensure vacuum tightness in the vacuum chamber constantly during the operation of the feeder and of the crimping machine.
  • Another object of the invention is to provide a feeder that protects the lids during their insertion in the vacuum chamber.
  • Another object of the invention is to provide a feeder that can work at high operating speeds and is capable of operating with the most disparate types of lid (both tinplate and aluminum).
  • Another object of the invention is to provide a feeder that is capable of giving the greatest assurances of reliability and safety in use.
  • Another object of the invention is to provide a feeder that is easy to provide and economically competitive if compared with the background art.
  • the feeder particularly for feeding lids in vacuum crimping machines, generally designated by the reference numeral 1a, comprises a passage channel 2 that is adapted to guide the lids 3 to a crimping station 4 contained in a vacuum chamber 5.
  • the passage channel 2 has a closed profile and passes through a wall 50 of the vacuum chamber 5, connecting the environment inside the vacuum chamber 5, at a pressure that is lower than the atmospheric pressure, to the external environment, at atmospheric pressure.
  • the feeder 1a comprises means 7 for pushing the lids 3, which are accommodated so that they can slide along the passage channel 2 so as to push the lids 3 along the passage channel 2.
  • a hermetic seal is provided between the inner walls of the passage channel 2 and the pusher means 7 so as to prevent the air of the outside environment from filtering through the passage channel 2 into the vacuum chamber 5.
  • the passage channel 2 comprises, in at least one of its portions 20, at least one longitudinal channel 21 which has, in a transverse cross-section, a profile 25 that corresponds substantially to the profile 75 of the transverse cross-section of the pusher means 7.
  • the pusher means 7 engage slidingly in the longitudinal channel 21 so as to close substantially the longitudinal channel 21 to the passage of air.
  • the coupling between the pusher means 7 and the longitudinal channel 21 is in fact such as to hinder the flow of air from the outside environment to the internal environment of the vacuum chamber that is generated by the difference in pressure established across the wall 50 of the vacuum chamber 5.
  • a play between the pusher means 7 and the longitudinal channel 21 comprised in the range between 0.05 mm and 0.1 mm is such as to ensure a good hermetic seal and at the same time allow the sliding of the pusher means 7 within the passage channel 2, without creating an excessive heating due to the friction between the pusher means 7 and the inner edges of the hole 21.
  • the passage channel 2 comprises two longitudinal channels 21, 26, so that the pusher means 7 engage slidingly respectively the first channel 21 in input to the vacuum chamber 5 and the second channel 26 in output from the vacuum chamber 5.
  • the pusher means 7 in fact enter the vacuum chamber 5, pushing the lids 3 toward the crimping station 4 through the first channel 21, and exit from the vacuum chamber 5, once the lid 3 has been abandoned, through the second channel 26.
  • the pusher means 7 slide along a closed loop that is defined by the passage channel 2 in its central part.
  • the pusher means 7 preferably comprise a plurality of pushers 71, each adapted to push a lid 3, and an actuation chain 72, which supports the pushers 71 and is adapted to move them along the passage channel 2.
  • the pushers 71 are alternated with the lids 3 so as to retain each lid 3 between two consecutive pushers 71, which are thus arranged at a mutual distance that is substantially equal to the diameter of a lid 3.
  • the passage channel 2 is adapted to receive the lids 3 from the external separator 6 and only then introduce them in the vacuum chamber 5.
  • means 11 for containing the lids 3 are advantageously provided, which are adapted to contain the movement of the lids 3 and prevent their fall during passage from the feeder 1 to the crimping station 4.
  • the containment means 11 comprise preferably a plurality of pads 12 actuated by a chain 13, which can slide in a direction that is integral with the advancement direction of the lids 3 in the passage channel 2.
  • the containment means 11 comprise a plurality of pads 112, which are actuated synchronously with the advancement of the lids 3 and are provided by a cam that acts on the individual lids 3 by means of a kinematic chain that is connected to the pusher means 7.
  • the pusher means 7 and in particular the actuation chain 72 are preferably actuated by a motor 73 of the brushless type, which is provided with a reduction unit 74 to actuate the ring gear that drives the actuation chain 72.
  • the first longitudinal channel 21 advantageously has a length that is at least equal to the distance that separates two consecutive pushers 71, so that such hole is always occupied by at least one portion of a pusher 71.
  • the second longitudinal channel 26 also can have a length that is at least equal to the distance that separates two consecutive pushers 71.
  • a column of stacked lids arrives at the separator 6, which is external to the vacuum chamber 5.
  • the separator 6 separates each lid 3, placing it on adapted external guides 61, where each lid 3 is gripped by a pair of consecutive pushers 71.
  • the pushers 71 push the lids 3 into the first longitudinal channel 21 of the passage channel 2, thus guiding them into the vacuum chamber 5.
  • the lids 3 are stabilized by the containment means 11, and in particular by the pads 12 or 112 that press slightly on the lid 3 to prevent it from moving from its own seat before being accommodated in the guides 41 of the crimping station 4.
  • the pushers 71 that have abandoned the respective lid 3 at the crimping station 4 are guided again to the passage channel 2, where, through the second longitudinal channel 26, they return to the separator 6 to grip a new lid 3 and repeat the above mentioned operations.
  • the longitudinal channels 21 and 26 of the passage channel 2 are advantageously always occupied by at least one portion of a pusher 71, so as to hinder the passage of air between the external environment, at atmospheric pressure, and the environment inside the vacuum chamber, at a lower pressure, during the entire operation of the device 1b.
  • the feeder particularly for feeding lids in vacuum crimping machines, according to the present invention, achieves the intended aim and objects, since it makes it possible to feed the lids to a vacuum crimping machine in a simple and efficient manner.
  • Another advantage of the feeder according to the invention resides in that it ensures pressure losses, between the inside and the outside of the vacuum chamber in which the crimping machine operates, on the order of 2-4 mmHg, even with degrees of vacuum inside the vacuum chamber of not less than 800 mmHg. Accordingly, the operation of the vacuum pump used to maintain the desired degree of vacuum inside the vacuum chamber is reduced substantially, with a consequent increase in the efficiency of the crimping process and a reduction in consumption.
  • Another advantage of the feeder according to the invention resides in that it can ensure very high feed rates, even higher than 600 lids per minute.
  • Another advantage of the feeder according to the invention resides in that it makes it possible to place the separator outside the vacuum chamber.
  • Another advantage of the feeder according to the invention resides in that it prevents unwanted damage of the lids and of their edges during their feeding from the separator, which is external to the vacuum chamber, to the crimping machine, which is internal to the vacuum chamber.
  • the materials used may be any according to requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Closing Of Containers (AREA)

Claims (8)

  1. Dispositif de délivrance de couvercles (la, 1b) en combinaison avec une machine de sertissage sous vide, le dispositif de délivrance de couvercles (la, 1b) comprenant un canal de passage (2) adapté de façon à guider des couvercles (3) vers une station de sertissage de couvercles (4) contenue dans une chambre à vide (5) de ladite machine de sertissage sous vide, ledit canal de passage (2) ayant un profil fermé et traversant une paroi (50) de ladite chambre à vide (5), de façon à relier l'environnement à l'intérieur de ladite chambre à vide (5) à l'environnement extérieur, le dispositif de délivrance de couvercles (la, 1b) comprenant des moyens (7) pour pousser lesdits couvercles (3), les moyens (7) pour pousser les couvercles (3) étant reçus de façon à pouvoir coulisser le long dudit canal de passage (2), de façon à pousser lesdits couvercles (3) le long dudit canal de passage (2), un joint d'étanchéité hermétique étant disposé entre les parois intérieures dudit canal de passage (2) et lesdits moyens formant poussoirs (7), de façon à empêcher l'air dudit environnement extérieur de filtrer à travers ledit canal de passage (2) dans ladite chambre à vide (5), lesdits moyens formant poussoirs (7) comprenant une pluralité de poussoirs (71), chacun adapté de façon à pousser un couvercle respectif (3), et une chaîne d'actionnement (72), qui supporte lesdits poussoirs (71), et qui est adaptée de façon à déplacer lesdits poussoirs (71) le long dudit canal de passage (2), ladite pluralité de poussoirs (71) étant supportés par ladite chaîne d'actionnement (72), de telle sorte que lesdits poussoirs (71) alternent avec lesdits couvercles (3) de façon à maintenir chacun desdits couvercles (3) entre deux poussoirs consécutifs (71), qui sont disposés à une distance mutuelle qui est sensiblement égale au diamètre dudit chaque couvercle desdits couvercles (3) délivrés par les poussoirs (71) qui saisissent entre eux ledit chaque couvercle desdits couvercles (3), et un jeu entre les moyens formant poussoirs (7) et le canal longitudinal au nombre d'au moins un (21, 26) étant situé dans une plage comprise entre 0,05 et 0,1 mm.
  2. Dispositif de délivrance de couvercles (1a, 1b) en combinaison avec la machine de sertissage sous vide selon la revendication 1, caractérisé en ce que ledit canal de passage (2) comprend, dans au moins une partie (20), au moins une partie de canal longitudinale (21, 26) s'étendant longitudinalement dans une direction de délivrance des couvercles, qui comporte, dans une section transversale qui est transversale à ladite direction de délivrance, un profil (25) qui correspond sensiblement au profil (75) de la section transversale desdits moyens formant poussoirs (7), qui est transversal à ladite direction de délivrance.
  3. Dispositif de délivrance de couvercles (1a, 1b) en combinaison avec la machine de sertissage sous vide selon la revendication 2, caractérisé en ce que ledit canal de passage (2) comprend deux parties de canal longitudinales (21, 26), lesdits moyens formant poussoirs (7) étant reçus de façon à pouvoir coulisser, respectivement, dans une première partie de canal (21) desdites deux parties de canal longitudinales (21, 26) qui entrent dans ladite chambre à vide (5), et dans une deuxième partie de canal (26) desdites deux parties de canal longitudinales (21, 26) en sortie à partir de ladite chambre à vide (5).
  4. Dispositif de délivrance de couvercles (la, 1b) en combinaison avec la machine de sertissage sous vide selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que ledit canal de passage (2) est adapté de façon à recevoir lesdits couvercles (3) à partir d'un séparateur de couvercles (6) de ladite machine de sertissage sous vide, disposé à l'extérieur de ladite chambre à vide (5).
  5. Dispositif de délivrance de couvercles (1a, 1b) en combinaison avec la machine de sertissage sous vide selon la revendication 2, caractérisé en ce que ladite partie de canal longitudinale au nombre d'au moins une (21, 26) a une longueur au moins égale à la distance qui sépare deux poussoirs consécutifs (7).
  6. Dispositif de délivrance de couvercles (la, 1b) en combinaison avec la machine de sertissage sous vide selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'il comprend des moyens de confinement (11) pour confiner le déplacements desdits couvercles (3) qui sont reçus dans ladite chambre à vide (5) à la sortie dudit canal de passage (2) à proximité de ladite station de sertissage (4), de façon à confiner le déplacement desdits couvercles (3) afin d'empêcher leur chute durant le passage du dispositif de délivrance de couvercles (la, 1b) à la station de sertissage de couvercles (4).
  7. Dispositif de délivrance de couvercles (la, 1b) en combinaison avec la machine de sertissage sous vide selon la revendication 6, caractérisé en ce que lesdits moyens de confinement (11) comprennent une pluralité de tampons (12) qui sont actionnés par une chaîne (13) qui peut coulisser dans une direction qui correspond à la direction d'avance desdits couvercles (3).
  8. Dispositif de délivrance de couvercles (la, 1b) en combinaison avec la machine de sertissage sous vide selon la revendication 6, caractérisé en ce que lesdits moyens de confinement (11) comprennent une pluralité de tampons (112) qui sont actionnés en synchronisme avec l'avance desdits couvercles (3).
EP12425143.0A 2012-08-30 2012-08-30 Dispositif d'alimentation destiné aux membranes de machines de sertissage sous vide Active EP2703302B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12425143.0A EP2703302B1 (fr) 2012-08-30 2012-08-30 Dispositif d'alimentation destiné aux membranes de machines de sertissage sous vide
HUE12425143A HUE027433T2 (en) 2012-08-30 2012-08-30 Dispenser for overlapping equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12425143.0A EP2703302B1 (fr) 2012-08-30 2012-08-30 Dispositif d'alimentation destiné aux membranes de machines de sertissage sous vide

Publications (2)

Publication Number Publication Date
EP2703302A1 EP2703302A1 (fr) 2014-03-05
EP2703302B1 true EP2703302B1 (fr) 2016-03-09

Family

ID=47088775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12425143.0A Active EP2703302B1 (fr) 2012-08-30 2012-08-30 Dispositif d'alimentation destiné aux membranes de machines de sertissage sous vide

Country Status (2)

Country Link
EP (1) EP2703302B1 (fr)
HU (1) HUE027433T2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110630160B (zh) * 2019-09-11 2020-08-04 浙江大学 一种大型土工离心机真空舱带轨道快开门密封结构

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3674160A (en) * 1971-04-08 1972-07-04 Heinz Co H J Apparatus for transferring can lids through a partition subject to a pressure differential
GB1383507A (en) * 1971-09-01 1974-02-12 Bristol Packaging Machines Ltd Container lidding machine
US3812641A (en) * 1973-04-03 1974-05-28 R Bemiss Method of forming, filling and closing cartons, and specific cartons therefor
US3872651A (en) * 1973-12-10 1975-03-25 Kartridg Pak Co Overcap placer
DE2900724C2 (de) * 1979-01-10 1986-05-28 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zur Beschichtung von Substraten im Vakuum
JPS6026662A (ja) * 1983-07-21 1985-02-09 バルツエルス・アクチエンゲゼルシヤフト 材料担体を使用する真空スライド装置
DE102008007629A1 (de) * 2008-02-04 2009-08-06 Krones Ag Schleusenvorrichtung zum Ein- und Ausbringen von Behältern in und aus einer Vakuumbehandlungskammer
GB0819474D0 (en) * 2008-10-23 2008-12-03 P2I Ltd Plasma processing apparatus

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Publication number Publication date
HUE027433T2 (en) 2016-09-28
EP2703302A1 (fr) 2014-03-05

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