Abstract: A packaging machine comprises at least one work station for processing at least one packaging part. The work station comprises a fluid line. The packaging machine comprises a valve for controlling a flow of fluid through the fluid line. The packaging machine comprises a control system for controlling the valve. The valve comprises a valve body with a flow channel. The valve comprises a blocking body which is movable in the flow channel along an axial direction between a closed position and an open position, wherein in the closed position a flow of fluid through the flow channel is prevented and in the open position a flow of fluid through the flow channel is enabled. The blocking body is configured to be flowed through by the fluid in the axial direction in the open position of the blocking body.

Abstract: A sealing station for a packaging machine, the sealing station may be a tray sealer. The sealing station includes an upper die with a sealing plate and a lower die with a tray holder for receiving at least one packaging tray to be sealed. A cutting blade is arranged within the sealing station, and cuts a lid for closing the packaging tray out of a top film. The cutting blade has an endless cutting edge for cutting out the lid along its contour. The cutting blade includes a first and a second blade section, for cutting out a first and second section of the contour of the lid respectively. The second blade section may produce a tear-off corner in the lid projecting beyond the edge region. The sealing station may include a first clamping jaw on the sealing plate, and a second clamping jaw on the tray holder.

Abstract: A tray sealer including a sealing station comprising a tool upper part, a clamping frame and a tool lower part. The tool upper part may surround a dome-shaped die used for deforming a skinnable top film. First and second channels in the dome-shaped die and in the tool upper part, respectively, are connectable to one another. The tool upper part or the dome-shaped die may comprise at least a third channel communicating with a vacuum generator so as to generate a thermal air convection from the first channel to the third channel along a side of the top film facing the dome-shaped die.

Abstract: A work station for a packaging machine comprises a tool structure and a tool movable relative to the tool structure by means of a drive. The drive comprises at least one countermagnet which is operatively connectable to an electromagnet and movable relative to the electromagnet. The drive further comprises a mechanism by means of which the movement of the tool is unidirectionally coupled to the relative movement of the countermagnet relative to the electromagnet.

Abstract: A sealing station for a packaging machine, the sealing station may be a tray sealer. The sealing station includes an upper die with a sealing plate and a lower die with a tray holder for receiving at least one packaging tray to be sealed. A cutting blade is arranged within the sealing station, and cuts a lid for closing the packaging tray out of a top film. The cutting blade has an endless cutting edge for cutting out the lid along its contour. The cutting blade includes a first and a second blade section, for cutting out a first and second section of the contour of the lid respectively. The second blade section may produce a tear-off corner in the lid projecting beyond the edge region. The sealing station may include a first clamping jaw on the sealing plate, and a second clamping jaw on the tray holder.

Abstract: A tray sealer that includes a control unit and a sealing station is presented. The sealing station comprises a tool upper part, a clamping frame and a tool lower part. The interior of the tool upper part comprises a dome-shaped die for deforming a top film. The dome-shaped die comprises at least a first channel and the tool upper part comprises a second channel. The dome-shaped die may have an inner contact surface. The clamping frame may clamp the top film in position on the tool upper part in a gas-tight manner so as to define an upper chamber within the tool upper part. In one embodiment, a vacuum sensor is operably connected to the control unit and is disposed between the dome-shaped die and a vacuum generator. The control unit may detect a tear in the film using a pressure profile generated by the vacuum sensor.

Abstract: A tray sealer including a sealing station comprising a tool upper part, a clamping frame and a tool lower part. The tool upper part may surround a dome-shaped die used for deforming a skinnable top film. First and second channels in the dome-shaped die and in the tool upper part, respectively, are connectable to one another. The tool upper part or the dome-shaped die may comprise at least a third channel communicating with a vacuum generator so as to generate a thermal air convection from the first channel to the third channel along a side of the top film facing the dome-shaped die.

Abstract: A transport unit that comprises a de-stacking device which is configured to drop trays from a stack of trays individually or in groups into a drop area, and a transport belt unit with a transport surface passing through the drop area for receiving and transporting away the dropped trays. The transport surface may comprise at least one opening. A negative pressure device may be provided to generate a suction force in the drop area through one or more of the openings of the transport surface, wherein the suction force sucks the dropped trays in the drop area in a direction towards the transport surface. This configuration reduces the rebound of the trays when they impact the transport surface as they are dropped. The invention also relates to a corresponding method for transporting trays.

Abstract: A working station for a packaging machine for sealing a package and quickly cutting a top film and a method for operating such a working station. The working station may include a sealing tool upper part, a sealing tool lower part, a sealing frame, a movable cutting tool having a blade for cutting a top film, and at least one energy storage device in operable engagement with the cutting tool and the sealing frame. The at least one energy storage device may be configured for accumulating potential energy upon a relative movement of the sealing frame with respect to the cutting tool. The working station may further include a holding mechanism that is operable to hold the cutting tool to a portion of the working station that is stationary with respect to the cutting tool and the sealing frame.

Abstract: The disclosure relates to a working station for a packaging machine for quickly cutting a top film and to a method for operating such a working station.

Abstract: A work station for a packaging machine comprises a tool structure and a tool movable relative to the tool structure by means of a drive. The drive comprises at least one countermagnet which is operatively connectable to an electromagnet and movable relative to the electromagnet. The drive further comprises a mechanism by means of which the movement of the tool is unidirectionally coupled to the relative movement of the countermagnet relative to the electromagnet.

Abstract: The present invention relates to a packaging machine for packaging packages, preferably trough-shaped packages, to be filled with goods, wherein a heating system is provided. The packaging machine is characterized in that the heating system is designed as an induction heating unit which is associated with a processing tool, and wherein the induction heating unit is provided in such a way that inductively generated eddy currents may be produced in the processing tool by the induction heating unit in order to directly heat the processing tool.