Abstract: The invention relates to a vertical bagging machine (1), equipped with a first linear motor (18) for displacing a transversal seal unit (10) in a first direction, preferably vertically (20), and a second linear motor (19) for executing a displacement in a second direction, preferably horizontally (21), in order to displace a heat-sealing jaw (11) in the latter direction or to cause two heat-sealing jaws (11, 12) to be displaced against one another by means of a gear (22). The linear motors (18, 19) are interconnected (23) by means of a cross formation. Each linear motor (18, 19) consists of a primary part (24, 26) and a secondary part (25, 27).

Abstract: The invention relates to a vertical bagging machine (1), equipped with a first linear motor (18) for displacing a transversal seal unit (10) in a first direction, preferably vertically (20), and a second linear motor (19) for executing a displacement in a second direction, preferably horizontally (21), in order to displace a heat-sealing jaw (11) in the latter direction or to cause two heat-sealing jaws (11, 12) to be displaced against one another by means of a gear (22). The linear motors (18, 19) are interconnected (23) by means of a cross formation. Each linear motor (18, 19) consists of a primary part (24, 26) and a secondary part (25, 27).

Abstract: To be able to weld different items, in particular films of different thickness and composition, in an optimized way in each case, it is proposed in the case of a welding jaw circulating along a closed path, for example a transverse welding jaw of a vertical tubular bag machine, to provide a sealing time factor (Kt) that can be set as desired within an open interval from zero to one and is equal to a quotient of a sealing time (ts) and a cycle time (tz) for a circulation of the welding jaw.

Abstract: In order to be able to realize complicated jaw movements in a device for welding of a foil tube, comprising two welding jaws, which can be moved opposingly and clamp the foil tube between one another, whereby a linear motor is provided as the jaw drive, it is suggested that the gearing houses a cam plate connected to a movable part of the linear drive, that the cam plate has two separate curves, and that each one cam connected to a jaw carrier is guided along a curve.

Abstract: In order to be able to remove in a vertical tubular bagging machine in a simple manner a worm-dosing means stored in a fill pipe, it is suggested that the fill pipe is formed out of two troughs aligned against one another with their insides, and that a trough is releasably connected to the other trough. One trough is in a preferred embodiment connected to the other trough via a swivel joint, and a fastening device is provided for locking the trough, which can be swung away, in a position supported by the other trough, so that the swingable trough can be swung away in order to remove the worm-dosing means laterally out of the opened fill pipe.

Abstract: In order to realize in a device for welding of a foil tube, comprising two welding jaws, which can be moved against one another and clamp the foil tube between one another, a simple gearing, it is suggested that two rods are provided in the gearing, that each rod is connected on the one side through a joint provided on a movable part of a linear drive to the part movable transversely with respect to the direction of movement of the welding jaws, and that each rod is connected on the other side to a joint of a jaw carrier.

Abstract: A device for unfolding of folded boxes, comprising a magazine for receiving of flat folded-box sleeves, a removing device for the individual removal of the folded-box sleeves from the magazine and for feeding the folded-box sleeves to an unfolding station where the folded-box sleeves are partially unfolded along a compressing section. The unfolding device has after the compressing section a chute for the precisely fitting receipt of the partially unfolded folded-box sleeves, an output device to remove the folded-box sleeves from the chute, and an expansion chamber following the chute for receiving the fully unfolded folded-box sleeves in order to achieve a very high unfolding rate.

Abstract: A tubular bagging machine in which expanding elements projecting away from the fill pipe are provided in order to create bags with welded edges. A separate longitudinal welding device for welding of an area adjacent to the edge of the tube is provided. It is thus possible to produce directly side-by-side a longitudinal seam and a welded edge. A bag-opening aid or a reclosing aid can be integrated into the longitudinal seam or the edge.

Abstract: A device for removing flat articles, in particular blanks of collapsed boxes from a delivery station and for transferring them to a receiving station which has a transport device thereat. Plural suction arms each with suction devices thereon are provided, which suction arms move through a self-contained cycloidal path. The cycloidal path has several tips and curved segments lying therebetween. The delivery station and the receiving station are each arranged at a tip of the cycloidal path. A rotor is provided for moving the suction arms. A sun and planet gear arrangement is provided on the rotor, which sun and planet gear delineate the cycloidal path. The suction arms are aligned parallel to one another and preferably to the transport direction of the transport device in order to achieve in this manner a technically simple and reliable device.

Abstract: Bags with welded edges are created by a vertical tubular bagging machine. The bags are flat on top and are relatively wide at the bottom. Only one edge-welding device to create a top seam is provided on one side of the fill pipe. Two edge-welding devices on the opposite side of the fill pipe are used to create two bottom seams stabilizing the bag.

Abstract: A carrier (4) with articles (2) provided thereon is moved quickly toward a package (3) and is slowed down at the package (3) such that by utilizing the articles (2) kinetic energy, they slide off the carrier (4) and move into the package (3). The carrier (4) can thus be returned to an article receiving position during the feed-in process for the articles (2) in order to receive new articles (2), which can be, for example filled tubular bags.

Abstract: In order to reduce the technical input for a device for packaging, for example a horizontal bagging machine, it is suggested to provide two sealing jaws which act against one another and weld a foil web, only one sealing jaw for a rotating operation. The second sealing jaw is co-moved along a path with the first sealing jaw in transport direction of the foil path and is moved back in opposite direction of the foil web. The second sealing jaw is fastened on a carriage which is moved along a horizontal rail, and a carrier connection transfers the component of the rotation motion of the first sealing jaw onto the second sealing jaw, which component extends in the foil transport direction.

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).