Rovema Gmbh

Volker Dersch

Roland Kuhn

Gunter Brueck

Erhard Lutz

Peter Trepke

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.

Twin-tube bag forming, filling and sealing machine comprising metering device and transfer system

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.

Method for operating a packaging machine

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.

Method for operating a tubular bag machine for producing bags having a transverse bottom seam and a transverse top seam different to the transverse bottom seam

The invention relates to a dispensing device () for being disposed in the forming tube () of a tubular bag machine () for the portioned dispensation of a flowable, in particular powdery, product (), having at least one screw conveyor () discharging the product (), said screw conveyor () protruding into a screw tube () with its longitudinal axis and being able to be rotationally driven by a drive, and having a flow barrier () fastened at the lower end of the screw tube (), the amount of the product (), which trickles down when the screw conveyor () is stopped, being able to be reduced by the flow barrier (), at least one first receiving contour being provided at the flow barrier (), and at least one second receiving contour being provided at the lower end of the screw tube (), 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 () at the lower end of the screw tube () in order to fixate the flow barrier () between the locking bolt and the two receiving contours at the lower end of the screw tube () in a form-fit manner.

Dispensing device for arrangement in the format tube of a tubular bag machine

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.

Dispensing device for a flowable product

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.

Growing community of inventors

Gruenberg, Germany

Volker Dersch