Abstract: A downwardly acting air-outlet nozzle (8) is provided in a device (1) for packaging between a funnel (2) and a fill pipe (5) for the purpose of producing an air stream and to thus enable filler to fall quicker through the fill pipe (5). In order to be able to determine and regulate the pressure (P) in the lower area of the foil tube, the pressure P is determined by means of a measuring device (26) and a measured-value indicator (27). The measuring device (26) can include a hollow pipe (29), which guides the pressure (P) to a measuring device (28). Tubular bags with a specific interior pressure can be manufactured with the device (1).

Abstract: In order to be able to quickly and inexpensively feed articles, in particular bags, into spaces, for example insides of folding boxes of a continuously moving, transporting device, the speed of the transporting device is slower during a feed-in operation than the speed of the transporting device outside of the feed-in operation. A control device is provided in a device for feeding in the articles in order to control this change in speed.

Abstract: In order to further accelerate a pourable product (4) falling into a fill pipe (2) or in order to compress the particle cluster of the product (4), it is suggested to blow air in timed intervals into the fill pipe (2). An air flap (13) is operated for this purpose in a pipe (11) between a blower (10) and the fill pipe (2) by means of a drive 14. A control device (15) controls the drive (14) dependent on a packaging parameter, for example, at a point in time when the product (4) is in a position of the free fall, which position is recognized by a sensor (16).

Abstract: In a tubular bagging machine with two cross-sealing jaws 1, 2, which are movable toward one another and thereby cross-weld a foil tube, product that moves between the cross-sealing jaws 1, 2, interferes with the cross seam, and results in a leaky cross-seam of a tubular bag. In order to reliably recognize entrapped product 10, it is suggested to measure the performance resistance of the servomotor on the cross-sealing jaws 1, 2, which are moved by a servomotor drive 4, in order to determine product entrapment. The machine controller 8 can additionally receive from the drive 4 a value for the jaw position, which position value corresponds to a desired momentary jaw pressure. A product entrapment is determined from a high or measured performance resistance value from the desired value. A reliable product entrapment recognition is achieved through the use of the light-metal cross-sealing jaw.

Abstract: A downwardly acting air-outlet nozzle is provided in a device for packaging between a funnel and a fill pipe for the purpose of creating air flow and to thus cause a fill material to drop quicker through the fill pipe. It is possible through the special arrangement of the air-outlet nozzle to utilize common funnels and fill pipes in such a device and to achieve positive fill material acceleration.

Abstract: In a packaging machine 2 with a movable part 27, which can be moved toward a packaging 26 or a product to be packaged, and a carrier movable with the part 27 and connected to the part 27, the part 27 and/or the carrier consists of a magnesium alloy 28, for example Mg Ag3 Se2 Zr1 or Mg A19 Zn1. A magnesium alloy 28 has low mass, low moment of inertia, high capability to conduct heat, high heat capacity and good stiffness. It can also be used for heated, package-building elements, for example, a longitudinal sealing jaw 33 movable toward a foil tube 6, a cross-sealing jaw 16, 17 or a cutting knife 25. Relatively small forces are needed for moving a part 27 and/or a carrier 23 consisting of a magnesium alloy 28, which makes the packaging machine 2 less expensive to operate.

Abstract: The sleeve 6 of a storage roller 3 is held by two supporting pins 4, 5 on a changing device 1 of a packaging machine. One supporting pin 5 is connected to a drive motor 9 for rotation of the supporting pin 5. The supporting pin 5 can be moved together with the drive motor 9 in axial direction 11 by an adjusting device 10. The exact position of the storage roller 3 or of the foil strip 2 unwound from the storage roller 3 can be measured by a measuring mechanism 28. With the changing device 1, it is possible to exchange or exactly adjust a storage roller 3, or correct the course of the unwound foil strip 2.

Abstract: The lower end 11 of a foil tube 6 rests in a vertical tubular bagging machine 1 without any mechanical tension from the remainder of the foil tube 6 on a scale 17. The scale 17 weighs the end 11 together with dosed product portion of a flowable product, which portion is fed into the end 11. The measured value of the scale is delivered to a volumetric dosing device 20. The dosing device 20 changes the mass of the dosed product portion dependent on measured values of the scale 17. The invention improves the packaging speed and the dosing exactness, in particular for dosed masses of less than 5 kg. of flowable product, for example powders.

Abstract: At a station (1) in a packaging line for folding a flap (2) of a bag (3) along a shaping line (10) of the flap (2) and for compressing the folded flap (2) by a folding element (5) against a resistance member (4), the folding element (5) is driven by a drive mechanism (16) into two directions (8, 9). The two directions are perpendicular to one another. A holding element (11) is provided which can be moved against the shaping line (10) and has a rectilinear shaping edge (12). The rectilinear shaping edge (12) guarantees a straight, position-exact shaping line (10). The folding element (5) causes the folding and compressing, and can be returned into a start position for the next flap (2).

Abstract: The welding jaws 7, 8 in a tubular bagging machine 1 for the creation of cross seams are driven by a drive 3 acting perpendicularly with respect to the foil-transporting direction 4 through a movable element 11. The jaw force (sealing force) is clearly increased through a lever 15 rotatable about a pivot point 17, and is precisely adapted to the requirements of a particle bagging operation. A drive with a small force, for example a linear motor 9, can be utilized in an economical manner in the tubular bagging machine of the invention. By providing a second drive, and connecting this drive to the lever (15), any desired motion path curves of the cross jaws and a continuous run sequence of the machine can be achieved. If the second drive stopped, then one has an intermittent tubular bagging machine.

Abstract: In a device for the formation of the longitudinal seam of a tubular foil, a flexible foil is placed around a formatting tube by means of a formatting shoulder. The device has a transporting device for moving of the foil and the formed tubular foil. The invention provides two opposingly rotating sealing bands which are pressed against one another clamping the two longitudinal edges o the foil for welding of the longitudinal seam of the tubular foil. One of the sealing bands can be heated by means of a heating device. Both sealing bands can be heated and the device designed as a tubular bagging machine. The invention has the advantage that the deflection of the longitudinal seam from its true path is avoided.

Abstract: A cross-sealing device for a tubular-bag packaging machine operable with stripping rods moved along the plastic foil tube to be sealed, which stripping rods assure that the sealing surfaces are free of packaging material prior to the sealing task. A drive is provided for the stripping rods which is mechanically robust and makes it possible to adapt the stripping paths on the plastic foil tube to the special requirements. Belt drives are provided for this purpose which are driven independently of the cross-sealing jaws and are controlled by a position controller controlling the position of the stripping rods.

Abstract: In order to avoid in a tubular bagging machine the disadvantages resulting from the state of the art through a cam-plate control of cross-welding jaws, it is suggested according to the invention, that the control of the movement of the cross-welding jaws occurs in dependency on the contact pressure, the temperature and the needed sealing time, with the drive being able to occur mechanically by means of a toggle-lever drive mechanism.

Abstract: A device for the cross-welding and/or cross-cutting of sealable foil material having inserted therein at regular intervals a particularly bulky fill material. Swingably mounted sealing jaws are forcedly guided in closed cam guideways which are an inverted mirror image of one another and located on opposite sides of a plane of symmetry (E) such that they each clamp foil material therebetween at a location whereat no fill material is located and along the plane of symmetry. The sealing jaws then swing out and away from the foil material and travel to the next area which does not contain fill material. Forcedly guided compressing members are arranged to travel in front of the sealing jaws, which compressing members compress the foil material at least over the sealing area determined by the sealing-jaw width. The compressing members are cylindrical, for example in the form of circular rods, rollers, cage bars and the like, preferably spring loaded and are relatively movable with respect to the sealing jaws.

Abstract: A driving method and system for controlling the operating characteristics of a tubular-bag machine, in which a tubular bag is closed off at the bottom end so as to be fillable with packing material through a fill pipe. An intermittently moved thin foil tube is for this purpose guided vertically between transversely arranged, heated sealing jaws, the opening and closing of which being camcontrolled. The foil movement is adjusted to the opening and closing movement. The drive for effecting the foil movement and the drive for effecting the sealing, separating and welding device are driven by separate motors controlled independently from one another, and are adjusted to one another such that each angular-speed stage can be adjusted independently from the preceding or following stage to the demands of the work cycle at any time during the work cycle. The magnitude of the angular speed can be adjusted as well.

Abstract: A packaging machine for manufacturing filling and closing of bags. A foil tube (4) is pulled off continuously by means of unwinding belts (13) on a packaging machine contracted as a tubular bag-forming machine. Cross sealing seams are created by means of continuously moving cross sealing jaws. The cross sealing jaws are maintained in a horizontal position during their entire movement by being guided in guide grooves. The guide curves have straight curve pieces in the area of a sealing zone, which curve pieces extend parallel with respect to the unwinding direction of the foil tube (4). The packaging machine permits a high operating speed, since the cross sealing occurs simultaneously with the unwinding movement and the cross sealing jaws, are guided exactly in an optimum position with respect to the foil tube. (4). The machine can be operated such that the unwinding speed for the thin sheet material is only a little slower than the speed of the goods to be packaged at the end of the fill pipe.

Abstract: A distributing container (2) has a base (9), which has openings (11 to 18). Inclined sliding surfaces (20, 19) start out from the edges (13a, 13b) of the openings (11 to 18), which sliding surfaces ease the movement of the loose material toward the openings (11 to 18). The fill level in the distributing container (2) is maintained constant with the help of a power-measuring device (29), from where the feeding of loose material into the distributing container (2) is regulated. Conveyors, for example conveyor troughs (3), are arranged below the openings (11 to 18), which forward the loose material which exists through the openings (11 to 18).An especially constant feeding of the conveyor troughs (3) can be achieved with the help of the distributing container (2).

Abstract: A tube sack has a fill chamber and a flag at one end thereof, the flag having a sealing seam at the outer end thereof and a labyrinth seam which is adjacent the fill chamber and which is arranged to provide small passages through which air can flow from the fill chamber to a ventilation chamber located between the sealing and labyrinth seams. A vent opening is provided in the form of a perforation through a wall of the flag or an interruption in the seal seam, and is sealed by a bridging seam which surrounds it or by a seal piece which is glued over it. In a method and apparatus for making the sack, a tube is formed and sealed at one end, is then filled, and the flag, sealing seam and labyrinth seam are then made in the other end along with, where appropriate, a perforation for the vent opening.

Abstract: A conveyor apparatus includes first and second elongate conveyor belts which are parallel and adjacent, which have support surfaces which are approximately flush, and which each have a plurality of compartment walls secured on and projecting outwardly from the support surface. Each compartment wall has a portion which extends laterally over the support surface of the other conveyor belt and each compartment wall is associated with a respective one of the compartment walls on the other conveyor belt. The conveyor belts are normally driven synchronously, but can be moved relative to each other in order to change the spacing between respective pairs of the compartment walls. Each conveyor belt preferably includes at least one elongate chain having a plurality of support elements supported thereon, each of the compartment walls being supported on a respective one of the support elements.

Abstract: A packaging machine includes a magazine which has a plurality of vertical compartments open at the top and bottom and which is supported for steplike movement between first and second positions in a direction forming an acute angle to a horizontal reference. A pair of adjacent box supports are located below and are parallel to the path of movement of the magazine, and are vertically movable between positions closely adjacent and spaced from the bottom of the magazine. A feed mechanism supplies individual packages to a fixed location above the path of movement of the magazine, the packages dropping into respective magazine compartments as the magazine moves. The feed mechanism can include a shaping mechanism at such fixed location to uniformly shape the individual packages. An inclined guideway supplies boxes to one of the box supports.