Patents Assigned to Rovema GmbH
  • Patent number: 11801961
    Abstract: A twin-tube tubular bag machine having two longitudinal sealing elements for forming two parallel film tubes, two parallel transverse sealing jaws for forming sealed tubular bags, and two filling devices for filling the tubular bags. A dosing device is disposed upstream of each of the filling devices for dosing a prespecified filling quantity of the filling material to be filled into the tubular bags. A transfer element having several transfer containers is provided between the filling devices and the dosing device. The filling material is transferred from the dosing device to the transfer containers in an input station. The transfer containers are transported to a pairing of two dispensing stations along a transfer line, the filling material is transferred from the transport containers to the two filling devices, and the transfer containers are transported back to the input station along a return transfer line.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: October 31, 2023
    Assignee: ROVEMA GMBH
    Inventor: Volker Dersch
  • Patent number: 11794932
    Abstract: A forming shoulder for forming a film tube from a flat film web and a method for producing a forming shoulder. The forming shoulder comprises a shoulder piece and a prism piece which are connected to each other along a forming edge, the shoulder piece having an outer shoulder surface via which the film web can be guided to an entry opening of the prism piece limited by the forming edge, the forming edge being made of at least one metal piece, a plastic shoulder piece and/or a plastic prism piece being molded onto the metal piece.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: October 24, 2023
    Assignee: Rovema GmbH
    Inventor: Thomas Becker
  • Patent number: 11780618
    Abstract: A tubular bag machine having a longitudinal sealing element having two transverse sealing jaws which are moveable against each other to transversely seal a film tube, having a mechanism which moves the transverse sealing jaws, a filling device for filling the unsealed tubular bags with a filling material, a separating element for separating individual filled tubular bags, a dosing device disposed upstream of the filling device, and a transfer element having several transfer containers between the filling device of the tubular bag machine and the dosing device. The filling material is transferred from the dosing device to the transfer containers, and the transfer containers are transported to a dispensing station along a transfer line, and the filling material is transferred to the filling device, and the transfer containers are transported back along a return transfer line.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: October 10, 2023
    Assignee: Rovema GmbH
    Inventor: Roland Kuhn
  • Patent number: 11504919
    Abstract: A method for monitoring a tubular bag machine having a drive control system and independently controlled electronic drive units controlled by a drive control system for driving functional elements of the packing machine in a cycle time-synchronous manner in predefined motion sequences, one drive unit being a transverse sealing unit with a drive motor and two transverse sealing jaws for transversely sealing a film tube, and the drive motor torque measured using a drive controller, and the drive motor position measured using a position sensor, the method including moving the film tube into the sealing zone between the transverse sealing jaws, closing the jaws according to a predefined target torque stored in the drive control system, measuring the actual position of the drive motor upon reaching the target torque, and comparing the measured position to a target position stored in the drive control system associated with the predefined target torque.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: November 22, 2022
    Assignee: ROVEMA GMBH
    Inventor: Gerhard Kuss
  • Patent number: 11383457
    Abstract: A method for operating a tubular bag machine with a drive control system and multiple electronic drive units controlled independently of each other for driving functional elements of the packing machine in a cycle time-synchronous manner through predefined motion sequences, one drive unit being a transverse sealing unit with a drive motor driving two transverse sealing jaws for transversely sealing a film tube, and at least conversion functions for converting the drive torque and the position of the drive motor into the sealing force between the transverse sealing jaws being stored or calculated in the drive control system, the method including determining the operating temperature of the transverse sealing jaws, selecting or calculating a conversion function as a function of the operating temperature, using the temperature-dependent conversion function in calculating the drive torque of the drive motor required to reach a desired target sealing force between the transverse sealing jaws.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: July 12, 2022
    Assignee: ROVEMA GMBH
    Inventor: Gerhard Kuss
  • Patent number: 11370573
    Abstract: A method for testing a tubular bag machine, the tubular bag machine having multiple electronic drive units controlled independently by a drive control system for driving functional elements of the packing machine in a cycle time-synchronous manner during predefined motion sequences, one drive unit being a transverse sealing unit comprising a motor and two transverse sealing jaws for transversely sealing a film tube, the drive torque being measured using a drive controller, and the position of the drive motor measured using a position sensor, by removing the film tube from the sealing zone between the transverse sealing jaws, closing the jaws according to a predefined target torque stored in the drive control system; measuring the actual position of the drive motor at the target torque; and comparing the measured actual position to a target position stored in the drive control system and associated with the predefined target torque.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: June 28, 2022
    Assignee: ROVEMA GMBH
    Inventor: Timo Gartmann
  • Patent number: 11340600
    Abstract: A method for operating a packaging machine having at least one electric drive motor, the drive motor driving at least one functional unit of the packaging machine in a program-controlled manner when producing packaging using the following steps: (a) loading a parameter set into the control of the packaging machine, the parameter set containing at least one load parameter which limits the torque or the current consumption of the drive motor to a maximum when producing packaging; (b) operating the packaging machine for producing packaging, the maximally occurring actual value of the torque mustered at the drive motor or the current consumed by the drive motor being measured during operation; (c) determining a new load parameter as a function of the maximum actual value; (d) saving the new load parameter in a parameter set allocated to the packaging to be produced.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: May 24, 2022
    Assignee: ROVEMA GMBH
    Inventors: Volker Dersch, Peter Trepke
  • Patent number: 10946991
    Abstract: A method for operating a tubular bag machine having a biaxially drivable transverse sealing device for producing tubular bags, a film sheet being closed by transverse bottom and top seams after having formed a film tube, an edge area of the film sheet forming a side fold using a side folder before forming the transverse bottom seam, and transverse top and bottom seams formed by adjacent tubular bags in one work step, said tubular bags formed in the draw direction having an alternating orientation, said side folder interacting with a stationary fold molding on the inner side of the film sheet, the minimal distance of the transverse sealing device to the fold molding alternatingly altered in the draw direction and being larger when producing the two transverse top seams than the minimal distance of the transverse sealing device to the fold molding when producing the transverse bottom seams.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: March 16, 2021
    Assignee: ROVEMA GMBH
    Inventor: Volker Dersch
  • Patent number: 10913555
    Abstract: The invention relates to a dispensing device (40) for being disposed in the forming tube (42) of a tubular bag machine (01) for the portioned dispensation of a flowable, in particular powdery, product (46), having at least one screw conveyor (43) discharging the product (46), said screw conveyor (43) protruding into a screw tube (41) with its longitudinal axis and being able to be rotationally driven by a drive, and having a flow barrier (45) fastened at the lower end of the screw tube (41), the amount of the product (46), which trickles down when the screw conveyor (43) is stopped, being able to be reduced by the flow barrier (45), at least one first receiving contour being provided at the flow barrier (45), and at least one second receiving contour being provided at the lower end of the screw tube (41), and a locking bolt being able to be inserted into and/or pushed through the first receiving contour and second receiving contour when disposing the flow barrier (45) at the lower end of the screw tube (41) i
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: February 9, 2021
    Assignee: ROVEMA GMBH
    Inventors: Volker Dersch, Gunter Brueck
  • Patent number: 10882652
    Abstract: A method for producing packaging, in particular tubular bags, by means of a packaging machine (1) having a PLC control (20). The packaging machine (1) includes several electronic drive units (3, 6) capable of being controlled independently of each other by the PLC control (20) and which can drive the different functional elements (8) of the packaging machine (1) in a manner synchronous to a clock cycle when trailing predefined movement trajectories, and several setting parameters of the production process, in particular the number of objects to be packed per time unit, the packaging dimensions, the sealing times, being predefined, the capturing of the setting parameters at the PLC control (20), which controls the drive units (3, 6) of the packaging machine (1), being followed by the transfer of the setting parameters from the PLC control (20) to a PC control (23).
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: January 5, 2021
    Assignee: ROVEMA GMBH
    Inventors: Erhard Lutz, Siegfried Wulsch
  • Patent number: 9340305
    Abstract: A dispensing device for a flowable, in particular powdery product, includes at least one screw conveyor discharging the product, a drive for rotating the screw conveyor about its longitudinal axis, and a forming tube for guiding a tubular film. The screw conveyor protrudes with its longitudinal axis into the forming tube, wherein at least one screw guide, in which the screw conveyor is guided transversally to its longitudinal axis, is formed by the inner wall of at least one cylindrical recess in the forming tube.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: May 17, 2016
    Assignee: ROVEMA GMBH
    Inventors: Roland Kuhn, Volker Dersch, Gunter Brueck
  • Patent number: 8773274
    Abstract: Packaging installation with a metering apparatus and method for monitoring damage in a packaging installation in which packs (19) which are to be filled can be charged with the contents in each case by means of a metering apparatus (01) designed according to one of Claims 1 to 8, wherein —the vibrations of the wall of the dispensing container (02) are measured at least during operation of the stirrer (06) and/or of the metering screw (05), —the measured values are evaluated by the vibration evaluator (10), —deviations in the vibration behavior are detected and compared with limit values stored in the vibration evaluator (10), —when the limit values are exceeded, this indicates with sufficient probability, that the stirrer (06) or the metering screw (05) is in contact with the dispensing container (02), —an alarm is triggered by means of the vibration evaluator (10).
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: July 8, 2014
    Assignee: Rovema GmbH
    Inventor: Burkhard Licher
  • Patent number: 8349107
    Abstract: The embodiments of the invention relate to a method for creating a force for a welding jaw of a vertical tubular bag machine. The welding jaw is moved back and forth along a path to strike a second welding jaw moving in the opposite direction. A tubular film is compressed between the second jaw and at least one sealing surface of the welding jaws, to weld the tubular film by ultrasonic vibrations applied thereto via the sealing surface at an applied pressure under a sealing force (Fs) within a sealing time (ts). The sealing force (Fs) is predetermined by a control unit such that the sealing force (Fs) runs along a sealing force curve within the sealing time (ts). The sealing force curve has a first relative sealing force maximum (Fs1) and at least one second relative sealing force maximum (Fs2), wherein (Fs1) is lower than (Fs2).
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: January 8, 2013
    Assignee: Rovema GmbH
    Inventors: Sepp Lachenmaier, Harald Braun, Erhard Lutz
  • Patent number: 8308881
    Abstract: The invention relates to a method for generating a welding force and/or a welding pressure for a welding jaw, in particular a welding jaw of a cross-sealing station of a vertical tubular bag machine, in which the sealing force or a sealing parameter, which correlates with the sealing force, in particular the sealing pressure or the drive power of the drive, is predetermined by a control unit during the sealing time, such that the sealing force runs along a sealing force curve within the sealing time, such that the sealing force curve has a first relative sealing force maximum with a sealing force and at least one second relative sealing force maximum with a sealing force, such that the sealing force at the first sealing force maximum is higher than the sealing force at the second sealing force maximum.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: November 13, 2012
    Assignee: Rovema GmbH
    Inventors: Volker Dersch, Roland Kuhn, Erhard Lutz
  • Publication number: 20120167531
    Abstract: The embodiments of the invention relate to a method for creating a force for a welding jaw of a vertical tubular bag machine. The welding jaw is moved back and forth along a path to strike a second welding jaw moving in the opposite direction. A tubular film is compressed between the second jaw and at least one sealing surface of the welding jaws, to weld the tubular film by ultrasonic vibrations applied thereto via the sealing surface at an applied pressure under a sealing force (Fs) within a sealing time (ts). The sealing force (Fs) is predetermined by a control unit such that the sealing force (Fs) runs along a sealing force curve within the sealing time (ts). The sealing force curve has a first relative sealing force maximum (Fs1) and at least one second relative sealing force maximum (Fs2), wherein (Fs1) is lower than (Fs2).
    Type: Application
    Filed: November 1, 2011
    Publication date: July 5, 2012
    Applicant: Rovema GmbH
    Inventors: Sepp Lachenmaier, Harald Braun, Erhard Lutz
  • Publication number: 20120125521
    Abstract: The invention relates to a method for generating a welding force and/or a welding pressure for a welding jaw, in particular a welding jaw of a cross-sealing station of a vertical tubular bag machine, in which the sealing force or a sealing parameter, which correlates with the sealing force, in particular the sealing pressure or the drive power of the drive, is predetermined by a control unit during the sealing time, such that the sealing force runs along a sealing force curve within the sealing time, such that the sealing force curve has a first relative sealing force maximum with a sealing force and at least one second relative sealing force maximum with a sealing force, such that the sealing force at the first sealing force maximum is higher than the sealing force at the second sealing force maximum.
    Type: Application
    Filed: November 1, 2011
    Publication date: May 24, 2012
    Applicant: Rovema GmbH
    Inventors: Volker Dersch, Roland Kuhn, Erhard Lutz