EP3795530A1 - Dispositif de verrouillage et procédé de verrouillage de bouchons de vis - Google Patents

Dispositif de verrouillage et procédé de verrouillage de bouchons de vis Download PDF

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Publication number
EP3795530A1
EP3795530A1 EP20189635.4A EP20189635A EP3795530A1 EP 3795530 A1 EP3795530 A1 EP 3795530A1 EP 20189635 A EP20189635 A EP 20189635A EP 3795530 A1 EP3795530 A1 EP 3795530A1
Authority
EP
European Patent Office
Prior art keywords
value
torque
actual
closing
operating parameter
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.)
Pending
Application number
EP20189635.4A
Other languages
German (de)
English (en)
Inventor
Maximilian Landstorfer
Johannes Strauss
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.)
Krones AG
Original Assignee
Krones AG
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 Krones AG filed Critical Krones AG
Publication of EP3795530A1 publication Critical patent/EP3795530A1/fr
Pending legal-status Critical Current

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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
    • B67B3/20—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps
    • 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
    • B67B3/2073—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
    • 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
    • B67B3/208—Electrical means responsive to the torque applied and acting on motor control means, e.g. strain gauges or power measurement means

Definitions

  • the invention lies in the technical field of devices that automatically close screw closures of containers, for example motor-driven.
  • a closing device for closing screw caps comprising a motor and a drive train and designed to transmit power from the motor to the screw caps by means of the drive train.
  • the properties of the screw cap and the counterpart, in particular of the respective thread also play a role in the closing.
  • this can be quantified in the form of a counter torque.
  • the coefficient of friction of the closure and counterpart, the geometry of the thread or the material elasticity can influence the size of the counter torque.
  • the actual closing torque depends not only on the torque acting on the screw cap but also on this counter-torque.
  • One object of the invention is therefore to provide a closing device and a method for closing screw caps, in which the deviation of the actual closing torque from the target closing torque is reduced on average.
  • the locking device mentioned at the outset comprises a control device which is designed to dynamically adapt the engine operation using a measured actual value of an operating parameter of the engine, for example an actual speed of the engine, a target locking torque and an actual locking torque model .
  • the claimed dynamic adaptation enables a reliable reduction in the deviation of the actual locking torque from the target locking torque.
  • the target locking torque is understood to mean a predetermined value which the actual or actual locking torque should have after the closure process has been completed.
  • the target locking torque can be stored at any point, for example on a storage medium of the locking device and a separate storage medium. It can have been saved by a user. How high the target locking torque is and in what form or what units it is specified depends on the actual application and can be suitably selected by a person skilled in the art.
  • the closing device can furthermore comprise an element which interacts directly with the closure, for example a screw head, whichever is designed to hold the closure and / or the direct power transmission during the closing process.
  • the motor can be an electric motor, for example.
  • the drive train can include, for example, a transmission.
  • the screw closures can include closures, for example lids, for containers, the closures having a thread, in particular an internal thread.
  • Dynamic adaptation is understood here to mean that during the entire locking process, for example by means of a control process that receives the actual values of the operating parameters of the motor and tracks the set values of the operating parameters of the motor, in order to regulate to a predetermined target locking torque.
  • the locking device can in particular be designed in such a way that measurement and adaptation of the motor operation, in particular a calculation of the actual locking torque by means of the actual locking torque model, take place continuously.
  • the inherent torque of the drive train can be continuously calculated and the actual locking torque derived therefrom, and the values of the operating parameters can be tracked based on this calculation.
  • the actual locking torque model can generate a value for the actual locking torque by calculating the difference between the engine torque (torque output by the engine) and the internal torque of the drive train.
  • the actual locking torque model can be designed in such a way that, based on a modeled torque acting on the locking device, it provides a modeled actual locking torque resulting from this modeled torque.
  • the torque acting on the closure can result from the motor torque, the inherent torque of the drive train and possibly also other system parameters, for example friction, and is the torque that is transmitted to the closure.
  • the locking torque depends on the torque acting on the lock and the counter torque.
  • the counter torque can, for example, depend on the properties of the closure and / or its counterpart, in particular its thread, as explained above. These properties and parameters can therefore be incorporated into the modeled torque acting on the closure and the modeled closure torque.
  • the actual closure torque model can be designed in such a way that it provides the torque acting on the closure using a drive train model, the Drive train model includes in particular a modeled internal torque of the drive train.
  • the drive train model can be designed in such a way that it provides a value of the inherent torque of the drive train based on mass inertia and / or friction in the drive train.
  • the control device can be designed to dynamically adapt the engine operation based on a control loop.
  • the control loop can be designed to output a value and / or a value range and / or an upper and / or lower limit for the value as input variables based on the measured actual value of the operating parameter and a predetermined target locking torque as input variables for at least one operating parameter to be set .
  • the control loop can be designed to use the actual locking torque model to determine a current value of the actual locking torque and, based on the current value of the actual locking torque and the target locking torque, the value and / or the value range and / or to determine the upper and / or lower limit for the value of the at least one operating parameter to be set, in particular based on a comparison of the value of the actual locking torque with the setpoint locking torque.
  • the control loop can be designed to determine the value and / or the value range and / or the upper and / or lower limit for the value of the operating parameter to be set in such a way that, according to the actual locking torque model, when the value of the operating parameter to be set is set accordingly an approximation of the value of the actual locking torque to the target locking torque is to be expected.
  • the control device can be designed to set a value for an operating parameter on the engine that corresponds to the output value and / or is in the output range of values and / or is below the output upper limit and / or is above the output lower limit.
  • the operating parameter to be set can include an engine speed and / or an engine torque.
  • the locking device can be designed so that by means of the actual locking torque model using a or the set value of the operating parameter, an expected actual value of the operating parameter and the measured value of the operating parameter, a value of a counter-torque, in particular the counter-torque described above, that is caused, for example, by the screw cap.
  • the invention also relates to a closer comprising at least one of the above-described closing devices.
  • the closer can in particular be designed for continuous operation.
  • the capper in particular the capper designed for continuous operation, can be designed in the form of a machine comprising a plurality of the capping devices described above.
  • the machine can in particular be designed in the form of a rotary machine and comprise a large number of closure devices according to the invention.
  • the closing devices can in particular be arranged on the outer circumference of a carousel of the rotary machine, which is designed to transport the containers to be closed.
  • the closing devices can be arranged at regular intervals on the outer circumference of the carousel.
  • closing devices are advantageous for increased throughput. Particularly in the case of arrangements with a large number of closing devices, especially in rotary machines, it is particularly advantageous, due to this high throughput, to carry out the closing motorized, as quickly as possible, but nevertheless precisely, so that the use of the closing device described above, especially in such machines, results in a high throughput high quality.
  • the invention also relates to a filling system, in particular for filling foodstuffs, which comprises one or more of the sealing devices described above, in particular at least one of the sealing devices described above, in particular at least one of the rotary machines described above.
  • the invention also relates to a method for closing screw caps, wherein for closing by means of a drive train, force is transmitted from a motor to the screw caps.
  • the engine operation is dynamically adapted using a measured actual value of an operating parameter of the engine, for example an actual speed, a target locking torque, and an actual locking torque model.
  • the method steps can be carried out as a control method, that is, the steps can be carried out repeatedly and the values of the operating parameters can be adjusted dynamically.
  • the measurement of the actual value of the operating parameter and adaptation of the engine operation can in particular take place continuously.
  • the engine operation can in particular be adapted dynamically based on a control loop.
  • the control loop can in particular be designed to use a value and / or a value range and / or an upper and / or lower limit as input variables based on the measured actual value of the operating parameter and a predetermined target locking torque as input variables for at least one operating parameter of the motor to be set for the value to be output.
  • the control loop can be designed to use the actual locking torque model to determine a current value of the actual locking torque and, based on the current value of the actual locking torque and the target locking torque, the value and / or the value range and / or to determine the upper and / or lower limit for the value of the at least one operating parameter to be set, in particular based on a comparison of the value of the actual locking torque with the setpoint locking torque.
  • the control loop can in particular be designed to determine the value and / or the range of values and / or the upper and / or lower limit for the value of the operating parameter to be set in such a way that, according to the actual locking torque model, with the corresponding setting of the value of the operating parameter to be set Operating parameters an approximation of the value of the actual locking torque to the target locking torque is to be expected.
  • the method can include setting a value for the operating parameter on the engine by means of a control device which corresponds to the output value and / or is in the output value range and / or is below the output upper limit and / or is above the output lower limit.
  • a closing device 1 of an embodiment of the invention is shown schematically and not true to scale.
  • the closing device comprises a motor 2, a drive train 3 and a screw head 4.
  • the figure shows a holder 5, which can be part of the closing device, but does not have to, and is designed to hold a container 6, in particular to hold the container in the working area of the screw head.
  • a screw cap 7 held by the screw head is also shown.
  • the screw cap has a thread 7a, here an internal thread.
  • a cross section through the screw cap is shown here.
  • the container has a thread 6a at the end to be closed, here an external thread as an example, which fits the thread of the screw cap. It goes without saying that the closing device is not limited to the closing of precisely this type of container and closures.
  • a sensor 8 is also shown, which can be attached to the engine or formed integrally with the engine.
  • the sensor is designed to measure actual values of at least one operating parameter of the engine, for example designed to detect the engine speed and / or the engine torque.
  • control device 9 which is connected to the sensor via a data connection 10, the sensor and the control device being designed in such a way that data recorded by the sensor are transmitted to the control device.
  • the control device and the sensor can be formed integrally.
  • the control device is designed to set the respective value of one or more operating parameters of the engine.
  • the control device can have a data connection 11 to the motor.
  • the control device can be formed integrally with the motor.
  • the screw cap can be screwed onto the container thread of a container.
  • the container can be held by a holder and the screw cap by a screw head.
  • the motor can be operated, for example controlled by a control device, and the motor power can be transmitted to the screw cap by a drive train, in particular via the screw head.
  • the transmission of the motor power can include a translation and / or redirection of the motor power.
  • the engine operation is dynamically adapted using a measured actual value of an operating parameter of the engine, for example an actual speed, a target locking torque, and an actual locking torque model.
  • a control loop can be used for this, for example the one below in connection with Figure 2 control loop described in detail.
  • a value and / or a value range and / or an upper and / or lower limit can be set by means of the actual locking torque model for at least one operating parameter of the engine to be set. or lower limit for the value can be determined and output.
  • a motor speed to be set and / or a motor torque to be set and / or a maximum value for the motor torque to which the motor torque is limited, i.e. an upper limit for the motor torque, can be determined and output.
  • the method can include that, using the actual locking torque model, a current actual locking torque is determined, and based on the current actual locking torque and the target locking torque, the value and / or the value range and / or the upper and / or or the lower limit is determined for the at least one operating parameter to be set.
  • the actual locking torque can be compared with the setpoint locking torque, in particular subtracted.
  • the value and / or value range and / or the upper and / or lower limit for the value of the operating parameter to be set can be determined in such a way that, according to the actual locking torque model, with a corresponding setting of the value of the operating parameter to be set, an approximation of the value of the actual Closing torque to the target closing torque is to be expected.
  • a value is then set on the engine for the operating parameter which corresponds to the output value and / or is in the output value range and / or is below the output upper limit and / or is above the output lower limit.
  • the method steps described above are carried out as a control method, that is, the steps are carried out repeatedly and the values of the operating parameter are dynamically adapted.
  • the measurement, determination and output can in particular take place continuously.
  • FIG Figure 2 An exemplary control loop 12 that can be used for the method described above and / or in the closure device described above for dynamically adapting the engine operation is shown in FIG Figure 2 shown.
  • the control loop includes, in particular, a locking torque controller 13.
  • the locking torque is regulated here, the input variables for the locking torque controller being the target locking torque and the actual locking torque.
  • control loop includes a section 14 which determines the actual locking torque from the actual speed of the motor and the (limited) motor torque using an actual locking torque model and outputs it to the locking torque controller.
  • the section here also models the inherent torque of the drive train as an example.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Of Jars (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
EP20189635.4A 2019-09-20 2020-08-05 Dispositif de verrouillage et procédé de verrouillage de bouchons de vis Pending EP3795530A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019125330.6A DE102019125330A1 (de) 2019-09-20 2019-09-20 Verschließvorrichtung und Verfahren zum Verschließen von Schraubverschlüssen

Publications (1)

Publication Number Publication Date
EP3795530A1 true EP3795530A1 (fr) 2021-03-24

Family

ID=71950527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20189635.4A Pending EP3795530A1 (fr) 2019-09-20 2020-08-05 Dispositif de verrouillage et procédé de verrouillage de bouchons de vis

Country Status (5)

Country Link
US (1) US20210087037A1 (fr)
EP (1) EP3795530A1 (fr)
JP (2) JP2021050042A (fr)
CN (1) CN112537738B (fr)
DE (1) DE102019125330A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259507A (en) * 1991-09-10 1993-03-17 C M Microdat Ltd The tightening of closures
EP0571980A2 (fr) * 1992-05-26 1993-12-01 WILHELM BAUSCH, ROLF STRÖBEL, SIEGFRIED BULLINGER, Gesellschaft des Bürgerlichen Rechts Dispositif de vissage de deux objets, en particulier de vissage d'une fermeture sur un récipient
EP1249426A1 (fr) * 2001-04-13 2002-10-16 Shibuya Kogyo Co., Ltd Dispositif et méthode d'obturation
DE10245879A1 (de) * 2002-09-30 2004-04-08 Elau Elektronik Automations Ag Vorrichtung zum Anbringen von Schraubverschlüssen
DE102006025811A1 (de) * 2006-05-31 2007-12-06 Khs Ag Verfahren zur Bestimmung des Verschließ-Endmoments beim Verschließen von Flaschen oder dergleichen Behälter sowie Verschließmaschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4232311B2 (ja) * 2000-03-06 2009-03-04 澁谷工業株式会社 キャッピング方法とキャッピング装置
JP4438415B2 (ja) * 2004-01-06 2010-03-24 澁谷工業株式会社 キャッピング方法およびキャッピング装置
DE102009019362A1 (de) * 2009-04-29 2010-11-04 Krones Ag Originalitätssicherung für den Verschluss einer Flasche

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259507A (en) * 1991-09-10 1993-03-17 C M Microdat Ltd The tightening of closures
EP0571980A2 (fr) * 1992-05-26 1993-12-01 WILHELM BAUSCH, ROLF STRÖBEL, SIEGFRIED BULLINGER, Gesellschaft des Bürgerlichen Rechts Dispositif de vissage de deux objets, en particulier de vissage d'une fermeture sur un récipient
EP1249426A1 (fr) * 2001-04-13 2002-10-16 Shibuya Kogyo Co., Ltd Dispositif et méthode d'obturation
DE10245879A1 (de) * 2002-09-30 2004-04-08 Elau Elektronik Automations Ag Vorrichtung zum Anbringen von Schraubverschlüssen
DE102006025811A1 (de) * 2006-05-31 2007-12-06 Khs Ag Verfahren zur Bestimmung des Verschließ-Endmoments beim Verschließen von Flaschen oder dergleichen Behälter sowie Verschließmaschine

Also Published As

Publication number Publication date
JP2022190187A (ja) 2022-12-23
CN112537738B (zh) 2023-03-28
CN112537738A (zh) 2021-03-23
DE102019125330A1 (de) 2021-03-25
JP2021050042A (ja) 2021-04-01
US20210087037A1 (en) 2021-03-25

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