Emptying device and method for emptying a magazine of a packaging machine

Abstract

The invention relates to a clearing device (1) for completely emptying at least one silo (101) of at least one rotary packer (100) and to a rotary packer (100) having at least one silo (101) and at least two filling stations (102), which each have at least one filling nozzle (103) which communicates with the silo (101), and such a clearing device (1) which comprises a discharge line (2) with a receiving opening (3). The receiving opening (3) has a longitudinal extent (4) which is longer than a lateral extent (5). In a method for completely emptying a silo (101) of a rotary packer (1), the rotary packer has two filling stations (102), which each have one filling nozzle (103), and such a clearing device (1), the packer (100) being brought to rotate continuously during the emptying.

Description

Technical Field

[0001] This invention relates to an emptying device for completely emptying at least one hopper of at least one rotary packaging machine. Such a rotary packaging machine has at least two filling positions, each having at least one filling nozzle and preferably at least one conveying mechanism such as a conveyor impeller. The emptying device includes at least one discharge pipe with at least one discharge port. The invention also includes a rotary packaging machine having such an emptying device and a method for emptying the hopper of the packaging machine using such an emptying device. Background Technology

[0002] Rotary packaging machines include multiple filling stations with filling nozzles distributed along the circumference. Each filling nozzle is supplied with product or bulk material to be filled from at least one hopper, mostly located in the center. Depending on the equipment design, multiple additional components or parts can be provided for the packaging machine or filling stations, regardless of whether the filling valves or opening bags are already filled.

[0003] The packaging machine rotates, and during the rotation, the bags are suspended, filled, and removed from the system to be transported away.

[0004] When products are changed, residual product may remain in the hopper in some cases. To achieve rapid, and especially as cleanly and completely, emptying, components for complete emptying are known in the prior art. Such devices typically have a suction channel with an opening that matches the profile of the filling nozzle.

[0005] Next, the rotary packaging machine typically performs a start-stop operation during complete emptying. During this process, the packaging machine rotates until the filling nozzle is in front of the assembly opening for complete emptying. Now, depending on the situation, the suction channel opening moves past the filling nozzle, conveying the bulk material from the hopper through the filling nozzle into the suction channel. The product is then further conveyed from here accordingly. Such packaging machines with a return device are described, for example, in DE29622064U1.

[0006] To completely empty the machine, it must perform at least one full rotation, as each filling nozzle must blow into the suction channel opening at least once, because the piping path from the hopper to the filling nozzle must also be emptied. Each filling nozzle has its own discharge cone, so if there is still too much product in the hopper, it will overflow during continued rotation, requiring at least one more rotation in cyclic operation mode.

[0007] The drawback of existing equipment is that it requires complete emptying during start-stop operations. This limits the speed of complete emptying. Another significant disadvantage is that the components of rotary packaging machines are not designed for start-stop operations. Due to the large mass of the moving parts, considerable forces act on the various components during start-stop operations. This necessitates the use of specialized components; for example, larger drives and / or heavier brakes are required to prevent equipment failure.

[0008] Therefore, the objective of this invention is to achieve complete emptying or rapid complete emptying, with rapid complete emptying being able to be performed quickly and reducing the load on components compared to existing equipment. Summary of the Invention

[0009] This task is accomplished by an emptying device having the features of claim 1, a packaging machine having the features of claim 10, and a method for completely emptying the hopper of a rotary packaging machine having the features of claim 11. Preferred improvements of the invention are the subject of the dependent claims. Other advantages and features of the invention can be derived from the general description and the description of embodiments.

[0010] The emptying device according to the invention is suitable for completely or rapidly emptying at least one hopper of at least one rotary packaging machine having at least two filling positions, each having at least one filling nozzle. Here, the emptying device includes at least one discharge pipe with at least one receiving port, wherein the receiving port has a longitudinal extension longer than the lateral extension.

[0011] The emptying device according to the invention is suitable for the complete or rapid emptying of a rotary packaging machine or its hopper, preferably for the complete or rapid emptying of the inlet pipe from the hopper of the packaging machine to the filling nozzle, without allowing the material to be filled or bulk material located in the hopper to be filled into the bag. For this purpose, the bulk material located in the hopper is blown from the filling nozzle into the emptying pipe, conveyed into or guided into the emptying pipe, and thus can be conveyed to reuse in the same manner.

[0012] The fact that the receiving port has a longitudinal extension that is longer than the lateral extension particularly means that the receiving port is a generally elongated structure, wherein the longitudinal extension particularly defines the lateral extension of the receiving port.

[0013] The elongated structure or the longitudinal extension of the receiving opening that is longer than the lateral extension particularly means that the longitudinal extension of the opening is at least 1.5 times or twice as long as the lateral extension, or even longer.

[0014] The emptying device according to the invention particularly includes at least one conveying mechanism, by means of which the product or bulk material conveyed to the receiving port can be transported away in a suitable manner. Thus, the receiving port is configured, for example, as a suction opening. According to the design, the product may also preferably be transported passively or by gravity through a correspondingly inclined removal section.

[0015] The emptying device according to the invention has many advantages. A significant advantage is that, through the unique design of the receiving port of the emptying device, which has a longitudinal extension longer than the lateral extension, continuous operation of the packaging machine can be achieved during complete or rapid complete emptying. Due to the elongated design of the receiving port, it is possible for the filling nozzle to pass through the suction opening during the rotation of the packaging machine and not be pushed against the filling nozzle during start-stop operation as is known in the prior art.

[0016] In existing devices for complete emptying, the receiving port is contoured to fit the filling nozzle, allowing the suction opening to be pushed against the filling nozzle as precisely as possible. Therefore, complete emptying can only be performed during start-stop operation.

[0017] During the complete emptying of the hopper and the filling path to the filling nozzle, standard components can be installed by continuous or intermittent rotation of the packaging machine. Here, the rotation speed can be constant or variable, preferably without needing to be stopped. A reduced rotation speed is particularly desirable compared to the filling operation.

[0018] The force acting on the packaging machine is no higher than that during normal filling operations. As mentioned above, in the case of the packaging machine, start-stop operation has significant disadvantages because the relatively large mass of the filling equipment during start-stop operation applies considerable force to the various components.

[0019] Preferably, the receiving port is designed to at least partially fit the outer periphery of the packaging machine. In particular, it is provided with a receiving port that is at least partially curved or arc-shaped.

[0020] The receiving port preferably has at least one effective angle. This effective angle is specifically described as the distance the filling nozzle travels as it rotates through the receiving port or along its longitudinal extension. Therefore, the product can be conveyed to the receiving port over the longest possible time during the packaging machine's rotation. The effective angle depends particularly on the number of filling positions and therefore on the number of filling nozzles, and thus on the diameter of the packaging machine. The fewer the number of filling nozzles, the smaller the diameter of the packaging machine, and therefore the larger the effective angle.

[0021] In a further design, the lateral extension of the receiving port has a generally U-shaped and / or V-shaped cross-section. This specifically provides a channel opening for the filling nozzle. In particular, the sidewall of the suction opening has a recess corresponding to the cross-section of the suction opening, so that the filling nozzle can be moved into the suction opening from the side or pass through the suction opening laterally, thus eliminating the need to push the suction opening to the filling nozzle according to the design.

[0022] In an advantageous design, the corresponding component at the suction opening is provided with a U-shaped or V-shaped cross-section.

[0023] Preferably, the discharge conduit is at least partially pivotable. Here, the portion of the discharge conduit having the receiving port is particularly pivotable. Preferably, the discharge conduit can then pivot about a substantially horizontal pivot axis, such that the suction conduit pivots forward and backward or folds up and down.

[0024] Preferably, the discharge line is configured to be movable between at least a stationary position and at least one emptying position. Therefore, the discharge line can be moved to an undisturbed stationary position during normal filling operations. To empty the hopper, the discharge line can then be moved to an emptying position, which can also be configured as an intermediate position, particularly when the filling nozzle is changed.

[0025] In an advantageous improvement, the drain line is configured to be at least partially movable. The drain line is particularly configured to be pivotable and movable. Here, in all designs, movable specifically refers to the forward and backward movement of the drain line. Where appropriate, other components associated with the drain line may also preferably be movable together.

[0026] Therefore, designing the discharge line to be pivotable and operable allows the discharge line or receiving port to be positioned at a sufficient distance from the packaging machine or filling nozzle during normal operation of the packaging machine. For complete emptying, the receiving port can be moved closer to or at least partially past the filling nozzle during rotational operation when changing filling nozzles. Most of the path to the filling nozzle is preferably pivotable, where, depending on the situation, components attached to the filling nozzle or the packaging machine may need to be moved at least a certain distance to the filling nozzle via actuating the suction channel or receiving port.

[0027] Preferably, at least one protective device is provided at the receiving port. For example, such a protective device may have at least one protective edge or protective plate disposed in the lower region of the receiving port. For example, such a protective edge may collect product or bulk material that falls from the filling nozzle at a lower speed.

[0028] Preferably, the receiving port is equipped with at least one dust removal device. This dust removal device may preferably have one or more openings through which dust generated during complete emptying can be sucked out. These openings or dust removal devices may be located above, below, or to the side of the receiving port.

[0029] Particularly preferably, the emptying device is configured to be movable. Therefore, the emptying device can be designed to be movable or repositionable, thereby enabling its use, for example, with multiple packaging machines.

[0030] The rotary packaging machine according to the invention includes at least one hopper for filling products, at least two filling positions having at least one filling nozzle respectively connected to the hopper, and at least one emptying device as described above.

[0031] Here, the packaging machine rotates in such a way that the filling nozzles of the two filling positions or the two filling positions rotate along the outer circumference, so that during normal operation or filling operation, any connected bag is inserted into the filling nozzle or filled with bulk material from the hopper during the rotation of the packaging machine.

[0032] When the hopper is completely emptied, such as when changing the product in the system, the hopper and the bulk material still in the inlet line leading to the filling nozzle can be blown out into the emptying device or conveyed to the emptying device.

[0033] The packaging machine according to the invention also possesses the advantages described above for the emptying device. In particular, rotary packaging machines can be completely emptied during continuous or sustained rotary operation.

[0034] As previously stated, the method according to the invention is suitable for the complete emptying of the hopper of a rotary packaging machine having at least two filling positions, each having at least one filling nozzle and at least one emptying device, and is characterized by the fact that the packaging machine rotates continuously during emptying, complete emptying, or rapid emptying.

[0035] Therefore, specifically as defined or according to the invention, continuous rotation is understood to mean that the packaging machine rotates instead of operating in a start-stop manner during complete or rapid emptying, thereby achieving the aforementioned advantages in the method according to the invention. Thus, continuous rotation can also be understood here as rotation with varying rotational speeds. Therefore, it specifically refers to continuous rotation, and not necessarily continuous rotational speeds.

[0036] Preferably, the packaging machine rotates at a reduced circumferential speed compared to the filling operation. Therefore, it is particularly possible that the transit time of the filling nozzle through the receiving port can be set as long as possible, eliminating the need for start-stop operations on the packaging machine. Depending on the design of the packaging machine and the type of bulk material to be filled, a large number of bags can sometimes be filled per hour during the filling operation. This also results in a relatively high circumferential speed during the filling operation. Therefore, it is advantageous and preferred to reduce the speed of the packaging machine or its rotational speed during the emptying operation.

[0037] Particularly preferably, the discharge line operates and / or pivots at least when the filling nozzle is changed. This design also allows the packaging machine to rotate without relying on the structure at the filling nozzle and / or the rest of the packaging machine. Thus, especially when changing the filling nozzle, the discharge line or receiving port can pivot in the direction of the filling nozzle and operate according to the design.

[0038] Preferably, at least one conveying mechanism, such as a filling impeller, screw conveyor, and / or air conveying device of the packaging machine, carries the residual product from the rotating hopper into the filling nozzle during the rotation of the packaging machine. Here, the filling impeller is preferably operated such that a sufficient amount of bulk material is blown out through the filling nozzle.

[0039] Particularly preferably, the entire hopper is emptied by intermittently emptying the bulk material via the filling nozzles. Therefore, it is particularly likely that, as the packaging machine rotates continuously, each filling nozzle passes through the receiving port multiple times depending on the amount of residual product in the hopper, until the entire hopper, and preferably the inlet pipe leading to the filling nozzles, is empty.

[0040] Preferably, emptying is automatically initiated during a preset effective angle and / or rotation angle, and stops again depending on the longitudinal extension of the receiving port or the effective angle. This can preferably be sensor-controlled or can also be implemented solely by the effective angle. This results in significant time savings compared to complete emptying during a start-stop operation. Attached Figure Description

[0041] Other advantages and features of the present invention are derived from the embodiments, which are described below with reference to the accompanying drawings.

[0042] As shown in the attached figure:

[0043] Figure 1 A purely schematic diagram of a packaging machine according to the invention, having an emptying device according to the invention, is shown in a top perspective view.

[0044] Figure 2 A purely schematic diagram of a packaging machine according to the invention is shown in a side view, the diagram showing an upwardly folded discharge pipe and an emptying device according to the invention.

[0045] Figure 3 A purely schematic diagram of a packaging machine according to the invention is shown in a side view, the diagram having a discharge line operatively connected to a filling nozzle, and the packaging machine having an emptying device according to the invention;

[0046] Figure 4 A purely schematic diagram of one embodiment of the emptying device according to the present invention is shown in perspective view;

[0047] Figure 5 Shown in side view according to Figure 4 The illustrations are purely schematic representations of the embodiments;

[0048] Figure 6 The view above shows the data according to... Figure 4 The illustrations are purely schematic representations of the embodiments;

[0049] Figure 7 A purely schematic diagram of another embodiment of the emptying device according to the present invention is shown below in perspective view;

[0050] Figure 8 The perspective view from the front shows the basis Figure 7 The illustrations are purely schematic representations of the embodiments;

[0051] Figure 9 Shown in side view according to Figure 7 The illustrations are purely schematic representations of the embodiments;

[0052] Figure 10 Shown in other side views according to Figure 7 The illustrations are purely schematic representations of the embodiments;

[0053] Figure 11 A purely schematic diagram of another embodiment of the packaging machine according to the present invention is shown in a side view, which has an emptying device in a stationary position;

[0054] Figure 12 Showing according to Figure 11 The illustration is purely schematic and shows an emptying device in a central position: and

[0055] Figure 13 Showing according to Figure 11 The above is a purely exemplary view of an embodiment, showing a clearing device in a clearing position. Detailed Implementation

[0056] exist Figure 1 The packaging machine 100 according to the invention is shown in a purely schematic perspective view from above, which has an emptying device 1 according to the invention.

[0057] The packaging machine 100 according to the invention is configured as a rotary packaging machine 100 and includes a plurality of filling stations 102, which are distributed along the perimeter of the packaging machine 100. Thus, in Figure 1 Only one filling position 102 is shown in the diagram. Each of these filling positions 102 includes a filling nozzle 103 at which the bag to be filled is filled during the rotation of the packaging machine 100.

[0058] A packaging machine 100 is equipped with a central section. Figure 1 The hopper 101, not shown, transports the product to be filled from the hopper 101 to each filling position 102 or filling nozzle 103 via corresponding input pipelines.

[0059] In the illustrated embodiment, each filling position 102 or filling nozzle 103 is equipped with a conveying mechanism 104, which is a filling impeller, to which the product can be filled into the bag 200 to be filled.

[0060] In the embodiment shown here, a shell structure 105 is provided around the perimeter of the packaging machine 100, wherein a recess 106 is provided in the shell structure 105, through which the emptying device 1 or the discharge pipe 2 of the emptying device 1 with the receiving port 3 can be operatively connected to the filling nozzle 103 of the filling position 2 through which it rotates.

[0061] exist Figure 2 The diagram schematically illustrates a packaging machine 100 according to the invention, or a rotary packaging machine 100 having an emptying device 1 according to the invention, wherein the discharge line 2 retracts or pivots in the reverse direction, thus placing the discharge line in a stationary position 15. In this case, the packaging machine 100 can rotate undisturbed according to conventional filling operations to fill bulk materials or products into bags 200.

[0062] In the illustrated embodiment, a hopper 101 is provided, which has discharge cones 108 adapted to the number of filling positions, through which products or bulk materials are conveyed to individual filling positions 2 or hoppers 103.

[0063] To completely empty the container, the discharge line 2 in the illustrated embodiment can also pivot forward and move forward, thereby placing the discharge line in the empty position 16, in which the filling nozzle passes through the elongated receiving port 3. Then, during the rotation of the packaging machine 100, product can be blown or conveyed from the hopper 101 into the receiving port 3 via the filling nozzle 103. For this purpose, the rotation speed can be adjusted as needed, and in particular reduced compared to the filling operation.

[0064] Depending on the circumstances, the emptying device 1 according to the invention includes at least one conveying mechanism (not shown in detail), by means of which the product or bulk material conveyed to the receiving port 3 is transported away in a suitable manner. However, depending on the circumstances, the product may also be fed into a provided collection container simply by gravity, for example.

[0065] exist Figure 3 The diagram schematically illustrates a packaging machine 100 according to the invention, which has an emptying device 1 according to the invention, wherein the receiving port 3 of the discharge pipe 2 of the emptying device 1 is operatively connected to the filling nozzle 103 of the filling position 102 of the packaging machine 100 according to the invention, so as to achieve complete or rapid emptying of the packaging machine 100.

[0066] Therefore, the products from silo 101 are not like those in Figure 2 Instead of being filled into the bag 200 as in the traditional method, the product is conveyed to the emptying device 1 via the filling nozzle 103. For this purpose, when the respective filling nozzle 103 is operatively connected to the receiving port 3, the product is blown from each filling nozzle 103 to the receiving port 3. The product is then further conveyed in a suitable manner via the discharge line 102.

[0067] exist Figure 4 An embodiment of the emptying device 1 according to the present invention is shown schematically from the front in perspective view.

[0068] It can also be seen here that the emptying device 1 includes a discharge pipe 2 with a receiving port 3. Here, the receiving port 3 according to the invention is designed such that the longitudinal extension 4 is longer than the transverse extension 5.

[0069] According to the present invention, the receiving port 3 is provided by means of an elongated structure, which is unlike the prior art which is adapted to or mated to the contour of the filling nozzle 103, but is configured such that the filling nozzle 103 can pass through the receiving port 3 for a longer period of time during the rotation of the packaging machine 100.

[0070] Here, the cross-section 9 of the receiving port 3 is configured to be generally U-shaped, V-shaped, or a suitable profile. In the embodiment shown here, the filling nozzle 103, which is rotated through the area of ​​the receiving port 3, is laterally submerged or moved into the receiving port 3 by a suitable configuration of the wall 10 of the discharge pipe 2.

[0071] exist Figure 5 The side view shows the situation according to... Figure 4 According to an embodiment of the emptying device 1 of the present invention.

[0072] Here you can see the adjustment mechanism 11 for pivoting the discharge pipe 2 and the adjustment mechanism 12 for moving the discharge pipe 2. In addition, you can see the U-shaped or V-shaped cross-section 9 of the receiving port 3.

[0073] exist Figure 6 The middle section shows a top-down view based on... Figure 4 and 5 According to an embodiment of the emptying device 1 of the present invention.

[0074] It can be seen that the receiving port 3 is adapted to the outer periphery of the packaging machine 100. For this reason, the receiving port is constructed to be generally slightly curved or arc-shaped.

[0075] Furthermore, it can be seen that the receiving port has an effective angle 6, which limits the travel distance of the filling nozzle 103 during rotation, passing through or moving along the receiving port 3. Here, the effective angle 6 is observed from the rotation center point 107 of the packaging machine 100.

[0076] The construction of this receiving port 3 allows the filling nozzle 103 to be operatively connected to the receiving port 3 or the emptying device 1 for as long as possible as it passes through the elongated receiving port 3. Therefore, during rotation, especially during continuous rotation of the packaging machine 100, complete or rapid emptying of the hopper 101 can be achieved. Because the correspondingly constructed receiving port 3 enables continuous operation or rotation of the packaging machine 100, the start-stop operation as in existing equipment is no longer required.

[0077] exist Figures 4 to 6 The diagram also shows that the receiving port 3 is provided with a protective device 7. The protective device 7 shown here includes an edge 17 on the lower side of the receiving port 3, on which the poured bulk material or product is collected. The collected product can then be sucked away through the discharge pipe 2, sliding into the discharge pipe or being sucked away by means of a dust removal device 8.

[0078] exist Figures 7 to 10 Another embodiment of the emptying device 1 according to the invention is shown in different perspective and side views. This emptying device is used in the packaging machine 100 according to the invention.

[0079] Here, unlike the embodiments shown above, the receiving port 3 is equipped with a dust removal device 8, which sucks up the dust generated during complete or rapid emptying, thereby achieving a particularly clean complete emptying.

[0080] Therefore, the dust removal device 8 in the embodiment shown here has two suction funnels 13, which are arranged in the upper region of the receiving port 3. The two suction funnels 13, or dust removal funnels 13, converge into the dust removal conduit 14, which is capable of further removing the suctioned dust.

[0081] Depending on the circumstances, the suction funnel 13 or the dust removal funnel may also be provided below and / or to the side of the receiving port 3.

[0082] exist Figures 11 to 13The diagram schematically illustrates the operation of the suction line 2 of the emptying device 1 according to the invention at the start of complete emptying. This emptying device is the emptying device of the packaging machine 100 according to the invention. Here, the basic structure of the emptying device 1 basically corresponds to the aforementioned embodiment.

[0083] Figure 11 The discharge line 2 of the emptying device 1 is shown in the rest position 15. This is the position when the packaging machine 100 is performing a regular filling operation.

[0084] To completely empty the hopper 101 of the packaging machine 100, in the embodiment shown here, as follows: Figure 12 As shown, the suction channel 2 first pivots forward using the adjusting mechanism 11. In the intermediate position 18, the receiving port 3, in the illustrated embodiment, is located at the height of the filling nozzle 103, but still at a distance.

[0085] Due to components located in and around the filling nozzle 103, such as ultrasonic welding stations, suction channels, etc., in the embodiment shown here, the receiving port 3 cannot be brought close enough to the filling nozzle 103 by pivoting alone.

[0086] Therefore, in the embodiment shown here, the discharge pipe 2 or Figure 13 The receiving port 3 shown in the figure moves forward to the empty position 16 by means of the adjusting mechanism 12 after pivoting.

[0087] In this position, during the rotation of the packaging machine 100, the filling nozzle 103 moves through the receiving port 3 and conveys the product from the hopper 101 into the emptying device 1.

[0088] Here, the filling nozzle 103 is submerged deep enough into the receiving port 3 so that any product that may fall off is collected by the protective device 7 or the edge 17.

[0089] Due to the U-shaped, V-shaped, or other configuration of the cross-section 9 of the receiving port 3, in the illustrated embodiment, it is not necessary to actuate the discharge line 2 or the receiving port 3 when changing the filling nozzle. Each filling nozzle 103 can be moved to or through the receiving port 3.

[0090] Depending on the situation, the discharge line 2 can be moved from the empty position 16 to the intermediate position 18 or even to the stationary position 15 during the change of the filling nozzle.

[0091] Will Figure 11 and 13 A comparison also reveals that, in the embodiment shown here, the discharge line 2 is in fluid communication with line 19 in the empty position 16. The product can be appropriately conveyed through this line 19.

[0092] Pipeline 19 is configured to remain stationary, and the separately constructed discharge pipeline 2 separates from pipeline 19 when it moves from the empty position to the intermediate position 18 or the stationary position 15. Thus, there is no longer any fluid communication.

[0093] Depending on the circumstances, conduit 19 may also be otherwise connected to and / or integrated with discharge conduit 2. It is then advantageous to use, for example, flexible fittings and / or flexible pipes or hoses to ensure the displacement of discharge conduit 2.

[0094] List of reference numerals

[0095] 1. Emptying device

[0096] 2. Discharge Pipeline

[0097] 3 receiving ports

[0098] 4. Vertical extension

[0099] 5. Horizontal extension

[0100] 6 effective angles

[0101] 7 protection devices

[0102] 8 dust removal devices

[0103] 9 cross sections

[0104] 10 walls

[0105] 11 regulating mechanisms

[0106] 12 regulating mechanisms

[0107] 13 suction funnels

[0108] 14 Dust Collection Pipeline

[0109] 15. Stationary position

[0110] 16 Clear position

[0111] 17 Edge

[0112] 18 Middle position

[0113] 19 pipes

[0114] 100 Packaging Machine

[0115] 101 silo

[0116] 102 filling space

[0117] 103 filling nozzle

[0118] 104 Filling Impeller

[0119] 105 housing assembly

[0120] 106 Empty Section

[0121] 107 slewing center point

[0122] 108 discharge cone

[0123] 200 bags

Claims

1. An emptying device (1) for completely emptying at least one hopper (101) of at least one rotary packaging machine (100), the rotary packaging machine (100) being configured to rotate during operation, the rotary packaging machine including at least two filling positions (102), each having at least one filling nozzle (103), the emptying device including at least one discharge conduit (2) having at least one receiving port (3), Its features are, The packaging machine (100) rotates continuously during emptying, and the receiving port (3) has a longitudinal extension (4) longer than the lateral extension (5), and the receiving port is constructed and arranged such that the filling nozzle is operatively connected to the receiving port so as to receive material from the filling nozzle while the packaging machine including the filling nozzle is rotating continuously, without the need for the packaging machine to perform start-stop operations.

2. The emptying device (1) according to claim 1, wherein the receiving port (3) is designed to be adapted to the outer periphery of the packaging machine (100).

3. The emptying device (1) according to claim 1 or 2, wherein the receiving port (3) has at least one effective angle (6).

4. The emptying device (1) according to claim 1 or 2, wherein the receiving port (3) has a generally U-shaped and / or V-shaped cross section (9) along the lateral extension (5).

5. The emptying device (1) according to claim 1 or 2, wherein the discharge line (2) is configured to be at least partially pivotable.

6. The emptying device (1) according to claim 1 or 2, wherein the discharge line (2) is configured to be at least partially movable.

7. The emptying device (1) according to claim 1 or 2, wherein at least one protective device (7) is provided at the receiving port (3).

8. The emptying device (1) according to claim 1 or 2, wherein the receiving port (3) is provided with at least one dust removal device (8).

9. The emptying device (1) according to claim 1 or 2, wherein the emptying device (1) is configured to be movable.

10. A rotary packaging machine (100) comprising at least one hopper (101), at least two filling positions (102) and at least one emptying device (1) according to any one of the preceding claims, wherein each of the at least two filling positions has at least one filling nozzle (103) communicating with the hopper (101).

11. A method for completely emptying the hopper (101) of a rotary packaging machine (100), the rotary packaging machine having at least two filling positions (102), each having at least one filling nozzle (103), and at least one emptying device (1) according to any one of the preceding claims. Its features are, The packaging machine (100) rotates continuously during the emptying process.

12. The method of claim 11, wherein the packaging machine (100) rotates at a reduced circumferential speed compared to the filling operation.

13. The method according to claim 11 or 12, wherein the discharge line (2) operates and / or pivots when the filling nozzle is changed.

14. The method according to claim 11 or 12, wherein at least one filling impeller (104) of the packaging machine (100) conveys the self-rotating hopper (101) of residual product through the filling nozzle (103) into the receiving port during the movement of the filling nozzle into the receiving port (3).

15. The method according to claim 11 or 12, wherein the packaging machine (100) continues to rotate until the entire hopper (101) is emptied via intermittent emptying through the filling nozzle (103).

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