EP2029468B1 - Procédé de détermination du couple final de fermeture lors de la fermeture de bouteilles ou de contenants similaires - Google Patents

Procédé de détermination du couple final de fermeture lors de la fermeture de bouteilles ou de contenants similaires Download PDF

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Publication number
EP2029468B1
EP2029468B1 EP07725438.1A EP07725438A EP2029468B1 EP 2029468 B1 EP2029468 B1 EP 2029468B1 EP 07725438 A EP07725438 A EP 07725438A EP 2029468 B1 EP2029468 B1 EP 2029468B1
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EP
European Patent Office
Prior art keywords
torque
adjustment
phase
capping
closing
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
EP07725438.1A
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German (de)
English (en)
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EP2029468A1 (fr
Inventor
Enrico Schulz
Karl Lorenz
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.)
KHS GmbH
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KHS GmbH
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Publication date
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Publication of EP2029468A1 publication Critical patent/EP2029468A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B3/00—Closing bottles, jars or similar containers by applying caps
    • B67B3/26—Applications of control, warning, or safety devices in capping machinery
    • B67B3/261—Devices for controlling the tightening of threaded caps, e.g. testing the release torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B3/00—Closing bottles, jars or similar containers by applying caps
    • B67B3/20—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps
    • B67B3/2013—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps by carousel-type capping machines
    • B67B3/2033—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps by carousel-type capping machines comprising carousel co-rotating capping heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B3/00—Closing bottles, jars or similar containers by applying caps
    • B67B3/20—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps
    • B67B3/2073—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps comprising torque limiting means
    • B67B3/2093—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps comprising torque limiting means whereby the applied torque limit is varied

Definitions

  • the invention relates to a method according to the preamble of claim 1.
  • containers for example bottles, with screw caps
  • screw caps it is desirable for the consumer to open such closures only a certain force, i. only has to apply a certain maximum opening torque, so such screw caps are not closed too tight.
  • screw caps are sufficiently tightly bolted to the respective container to achieve a tight seal and, for example, escape of contents, e.g. Carbonic acid, but also to prevent the ingress of foreign substances, such as harmful germs reliably in the original sealed container.
  • the object of the invention is to provide a method with which the adjustment can be done purely by machine. To solve this problem, a method according to claim 1 is formed.
  • the method according to the invention has the advantage that virtually no personnel, in any case no personnel is required for the adjustment of several Verschraub- or Verschwinechen a sealing machine, which must perform special measurements by hand.
  • the method according to the invention enables a comparison of the screwing or closing units in a much shorter time and leads to reproducible results at lower costs.
  • 1 is a container in the form of a bottle, which by a screwed, in the fig1 shown cut closure 2 is closed in the form of a cap.
  • the closing of the bottles 2 takes place in the manner known to the person skilled in a sealing machine 3, of which in the FIG. 2 only a schematic view of a rotor 4 driven in rotation about a vertical machine axis is shown, on whose circumference a plurality of closing positions 5 are formed.
  • the bottles 1 to be closed are each fed to a closing position 5 at a bottle inlet 3.1 of the capper.
  • the sealed bottles 1 are fed to a bottle outlet 3.2 for further use.
  • a closure 2 is placed on each bottle 1 and this then screwed onto the thread formed at the respective bottle mouth 1.1, with a closing end torque , which among other things taking into account various bottle or closure parameters, such as number of threads and the pitch of the thread 1.1, taking into account material parameters, etc. conditional on an opening moment, which must be applied by the user when opening the bottle 1 and the closure 2 and thus a Function of the closing moment is.
  • each Versch95position 5 in the manner also known to the person skilled in a Verschwiniser 6 with screw or capping head 7 with associated drive, screwed with the (screw) the respective closure 2 on the thread 1.1 at the bottle mouth becomes.
  • Each closing unit 6 is individually controllable, namely to achieve a, corresponding to the respective desired opening torque closing end torque during closing, as will be explained in more detail below.
  • the drives assigned to the individual closing units 6 are preferably those drives which permit an individual adjustment of rotational speeds, directions of rotation and / or torques independent of the other drives. This may be e.g. to act known servo, stepper or synchronous motors in which the desired operating parameters can be set and realized in a controlled and / or controlled manner.
  • an individual adjustment (tuning) of the individual closure units 6 and their drives in the form that initially taking into account known parameters such. B. such concerning the formation and / or geometry of the thread 1.1, the design and geometry of the closures 2, the type of materials used, etc., as well as taking into account the desired opening moment the closing torque or the torque corresponding thereto at the screw or closing head 7 is calculated, for example on the basis of a mathematical model, which also maps or takes into account the mechanical and / or electromagnetic conditions of the closing units 6.
  • the measurement of the moments can be done by suitable devices, such as torque boxes, strain gauges, but also indirectly by measuring the motor current of the drive of the respective closing unit 6. In principle, it may be sufficient to detect and store in each case the maximum value of the torques, rotational speeds and / or rotational angles.
  • the maximum value of the current at the end of the closure (as a measure of the closing end torque) and the maximum value of the current during opening (as a measure of the opening moment) are determined. Furthermore, the opening speed is determined. On the basis of a current-torque characteristic of the drive motor specific to the respective drive motor and taking into account the existing gear ratio, the torque exerted on the closure 2 by the closing unit 6 or its head 7 can then be calculated with sufficient accuracy during closing and opening.
  • the original closing moment for example, based on the model calculation or empirically determined, is then corrected individually for each closing unit 6 on the basis of the measured values determined during opening during the adjustment or tuning phase, in particular on the basis of the determined opening torque such that the result from the closing end torque Opening torque corresponds to the desired value.
  • This correction takes place, for example, by multiplying the originally calculated or empirically determined closing end torque by a correction factor which corresponds to the quotient of the setpoint value for the opening moment and the actual value of the opening moment determined during the adjustment phase.
  • the current-torque characteristic is usually dependent on the speed, so that in the determination of the torque, in particular the maximum opening torque, the speed of the respective closing device 6 and the head 7 is taken into account.
  • the torque is also dependent on the respective installation situation and the specific mechanical conditions of each closure unit 6, so that it is at least useful for improving the balance, by measuring the idle current, to determine the idling torque of each closing unit 6 and in the memory of the Control device 8 store individually for each closing unit 6, so that this idle torque then in the determination of the correction or tuning factor of each closing and / or later in the production phase when closing the bottle 1 with the corrected output value of the closing end torque in addition to the respective correction factor can be taken into account.
  • the screwing angle required for screwing the respective closure 2 onto a bottle 1 until final closure is decisively influenced by the geometry of the closure 2 or of the thread 1.1.
  • the following example of a three-speed shutter with two-third turns in plan view illustrates this.
  • FIG. 5 shows in the diagrams a and b the typical course of the angular velocity of the respective closing unit 6 and the head 7 and the torque transmitted to a closure 2 when closing a bottle 1 with the closure during the production phase.
  • the rotational speed w of the closing device 6 is reduced, until a reduction to the value zero takes place when a closing end torque is reached, namely while maintaining the closing end torque, so that a further tightening of the closure 2 at a Alignment of the threads can be done and the shutter 2 is then turned on with the desired opening moment corresponding closing end torque on the bottle 1 and on the thread 1.1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Of Jars (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Closures For Containers (AREA)

Claims (11)

  1. Procédé servant à définir le couple de fermeture lors de la fermeture de bouteilles ou de contenants similaires avec des systèmes de fermeture (2) pouvant être vissés en utilisant une unité de fermeture (6) entraînée par moteur électrique d'une machine de fermeture (3), dans le cadre duquel, lors d'une phase de réglage, au moins un système de fermeture (2) d'un contenant (1) fermé antérieurement est réouvert, dans le cas présent au moins le couple d'ouverture requis pour la réouverture est déterminé en tant que valeur de correction et la fermeture subséquente des contenants (1) est effectuée par l'unité de fermeture (6) avec un couple final de fermeture tenant compte de ladite valeur de correction, caractérisé en ce que lors de la phase de réglage, l'au moins un système de fermeture (2) est réouvert par l'unité de fermeture (6), et en ce que dans le cas présent au moins le couple d'ouverture, requis pour ladite réouverture, de l'unité de fermeture (6) et/ou d'un entraînement de l'unité de fermeture (6) est déterminé en tant que valeur de correction.
  2. Procédé selon la revendication 1, caractérisé en ce que le couple de marche à vide de l'au moins une unité de fermeture (6) est déterminé au début de la phase de réglage.
  3. Procédé selon la revendication 2, caractérisé en ce que le couple de marche à vide est pris en compte lors de la définition du couple final de fermeture corrigé.
  4. Procédé selon la revendication 2 ou 3, caractérisé en ce que le couple de marche à vide est pris en compte au cours de la phase de réglage lors de la définition du couple d'ouverture.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'est obtenu, à partir des valeurs de mesure déterminées lors de la réouverture de l'au moins un contenant (1) au cours de la phase de réglage, un facteur de correction, qui permet de corriger un couple final de fermeture initial déterminé de manière empirique ou par calcul.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que lors de l'utilisation d'une machine de fermeture (3) à l'aide au moins de deux unités de fermeture (5), le réglage est effectué pour chaque unité de fermeture de manière individuelle.
  7. Procédé selon la revendication 6, caractérisé en ce que pour chaque unité de fermeture, le couple de marche à vide et/ou le facteur de correction sont déterminés et/ou mémorisés de manière individuelle.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une phase de réglage est immédiatement suivie respectivement d'une phase de production, lors de laquelle les contenants (1) sont fermés à l'aide du couple final de fermeture corrigé.
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au cours de la phase de production, respectivement un réglage est effectué en continu ou à des intervalles de temps spécifiés.
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le couple final de fermeture corrigé est effectué par la multiplication d'un couple final de fermeture de départ au facteur de correction.
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le facteur de correction est réalisé sous la forme d'un quotient entre une valeur souhaitée pour le couple d'ouverture et la valeur du couple d'ouverture mesuré au cours de la phase de réglage.
EP07725438.1A 2006-05-31 2007-05-23 Procédé de détermination du couple final de fermeture lors de la fermeture de bouteilles ou de contenants similaires Active EP2029468B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006025811A DE102006025811A1 (de) 2006-05-31 2006-05-31 Verfahren zur Bestimmung des Verschließ-Endmoments beim Verschließen von Flaschen oder dergleichen Behälter sowie Verschließmaschine
PCT/EP2007/004538 WO2007137737A1 (fr) 2006-05-31 2007-05-23 Procédé de détermination du couple final de fermeture lors de la fermeture de bouteilles ou de contenants similaires, et capsuleuse

Publications (2)

Publication Number Publication Date
EP2029468A1 EP2029468A1 (fr) 2009-03-04
EP2029468B1 true EP2029468B1 (fr) 2017-05-03

Family

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Family Applications (1)

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EP07725438.1A Active EP2029468B1 (fr) 2006-05-31 2007-05-23 Procédé de détermination du couple final de fermeture lors de la fermeture de bouteilles ou de contenants similaires

Country Status (4)

Country Link
US (1) US8001748B2 (fr)
EP (1) EP2029468B1 (fr)
DE (1) DE102006025811A1 (fr)
WO (1) WO2007137737A1 (fr)

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DE102008030271A1 (de) * 2008-06-19 2009-12-31 Arzneimittel Gmbh Apotheker Vetter & Co. Ravensburg Vorrichtung und Verfahren zur Prüfung der Dichtigkeit von Verschlusskappen auf medizinischen Hohlkörpern
US8615972B2 (en) * 2008-11-07 2013-12-31 Capmatic Ltd. Torque measuring assembly suitable for use in a container capping machine
IT1395609B1 (it) * 2009-09-14 2012-10-16 Arol Spa Stazione di controllo a campione per impianto di riempimento di bottiglie o contenitori ed impianto di riempimento di bottiglie o contenitori comprendente la stessa
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Also Published As

Publication number Publication date
DE102006025811A1 (de) 2007-12-06
US8001748B2 (en) 2011-08-23
EP2029468A1 (fr) 2009-03-04
US20090293437A1 (en) 2009-12-03
WO2007137737A1 (fr) 2007-12-06

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