EP2288545A1

EP2288545A1 - Packaging machine

Info

Publication number: EP2288545A1
Application number: EP09757310A
Authority: EP
Inventors: Christian Westarp; Bernhard STÖVESAND; Rainer Westhues; karl-Heinz BERENSKÖTTER
Original assignee: Haver and Boecker OHG
Current assignee: Haver and Boecker OHG
Priority date: 2008-06-06
Filing date: 2009-06-05
Publication date: 2011-03-02
Also published as: EA201100105A1; CN102056805A; EA021258B1; DE102008051023A1; WO2009146932A1; WO2009146927A1; EP2288546A1; CN102056804A; EA019438B1; DE102008051025A1; EA201100106A1

Abstract

The invention relates to a packaging machine for filling bulk goods into valve bags, having a storage container provided in an upper region, and a filling device disposed underneath the same, comprising a plurality of filling nozzles. The filling device comprises a plurality of filling units, each having a filling module. The filling units are configured in a self-supporting manner, wherein a filling cup, a filling nozzle, and a conveying member are each disposed on a filling module.

Description

packing machine

description

The present invention relates to a packing machine for filling bulk goods in bags and in particular for filling bulk goods in valve bags.

In the prior art packaging machines have become known with which an effective filling of bulk materials in valve bags is possible. Such packaging machines may comprise a single filler neck or a plurality of filler neck, which are arranged side by side in series or distributed over the circumference of a rotating system.

In the packing machines known in the prior art, and in particular also in the rotating packing machines, the individual components have hitherto been mounted individually on the housing of the system, which represents a considerable expense. For each filler individually a filling pot, a transport member and an electric drive for the transport member to the housing -the system are mounted. This is a significant assembly effort, which requires considerable space due to the size of the entire packaging machine.

In particular, in rotating packaging machines, in which six, eight, twelve or more filler nozzles are arranged distributed over the circumference, a lot of space is required even during installation, since all the components in succession to the housing

iüTÄTIGUNGSKOPlE must be attached. The total space requirement is therefore needed over a relatively long period of time.

When designing the space must be used very carefully to accommodate all the components to save space. Particular care must be taken to ensure that the individual components are exchangeable in the event of a defect. Thus, the transport organs are exposed to high wear, for example, so that the blades of the conveyor turbines must be replaced at regular intervals, since they are in frictional contact with the bulk material to be filled. In this regard, ease of installation and maintainability is important to reduce downtime for maintenance or repairs.

This is even more so, as the entire packaging machine usually has to be shut down for the complete repair or maintenance time during the maintenance of such a rotating packaging machine.

With the DE 10 2005 030 693 Al a method and a device for filling and dropping of bags has become known, wherein Füllmodule be mounted on the housing, whereby the assembly cost is reduced. This filling machine has a load-bearing packing as a housing, are mounted on the distributed over the circumference filling modules. The compact design filling modules each have the filling pot with a conveying member and the filler neck. This device allows for easier installation during commissioning, since the individual Füllmodule be screwed for mounting on the housing or the filling machine bearing filling body. In the case of maintenance, however, the entire filling machine must be put out of action.

In addition to the filling performance, the space required for transport to the installation site is an important criterion when selecting a packing machine. The packaging size during transport is essentially determined by the dimensions of the housing or the supporting packing of the packing machine. The filler body thereby forms the body carrying the packaging machine, to which the other components are mounted.The dimensions of the filling body are practically limited in many countries by the fact that the maximum permissible dimensions are to be adhered to when transported by lorry has approximately the outer diameter of the entire filling machine, the size of the filling machine is limited by the suitable for transport maximum diameter of the supporting packing.

Therefore, it is the object of the present invention to provide a packing machine with which the effort in assembly and maintenance can be reduced, whereby a more flexible construction and a more flexible transport are made possible.

This object is achieved by a packaging machine with the features of claim 1. Preferred developments and refinements of the invention are the subject of the dependent claims. Further advantageous features and properties of the invention will become apparent from the embodiment.

The packing machine according to the invention is used for filling bulk goods in bags and in particular for filling bulk goods into valve bags. The packing machine according to the invention has at least one supply container provided in an upper region of the packing machine and a filling device, which is arranged underneath a plurality of filling nozzles, for filling the bulk goods into the bags. In this case, the filling device comprises a plurality of filling units. Each filling unit is designed as a self-supporting filling unit and comprises a filling module to which in each case at least one filling pot, a filler neck and a conveying member are arranged. The packing machine according to the invention has many advantages. A significant advantage of the packaging machine according to the invention is the simple structure and easier assembly.

It is particularly advantageous that each filling unit is designed as an independent functional unit, which can optionally also be operated independently. A filling unit with the filling module therefore forms a uniform, independent and self-supporting system. This brings the considerable advantage that the packing machine after removal of a filling unit for z. B. maintenance purposes can be used and does not have to be stopped for the full duration of maintenance of a filling module. It is particularly positive that the packing machine only has to be stopped for the short duration of the removal and reinsertion of a filling unit. During the actual maintenance of the filling module, however, the operation can continue with the remaining filling units. Or it is exchanged to be serviced filling unit by an existing exchange unit and the packing machine is fully equipped continued to operate.

Since each filling unit is self-supporting, the pre-assembly of the filling unit with the filling module can be done separately. This means that all filling units of a packing machine can be pre-assembled separately, so that the assembly of the filling units on the packaging machine takes little time. As a result, the space required during assembly can be reduced, since the space required to complete the packing machine is needed only for a short time.

This allows a more flexible and easier installation. Each filling unit and each filling module again requires only a small space requirement during its pre-assembly, while the final assembly on the packing machine takes place quickly, since each filling unit is designed to be self-supporting. Due to the self-supporting and independent design of the filling units no separate packing or a housing is required as a supporting system on the packing machine. This saves material and space. Above all, the transport is facilitated and the design is made more flexible, since the maximum diameter of the packing machine is no longer limited by the maximum transport diameter of the packing.

In a particularly preferred embodiment, the filling device is designed as a self-supporting multipart filling body, which is formed by the filling units or filling modules or is formed by the assembly of the filling units. Such a development is very advantageous because the assembly of the filling units creates a self-supporting filling body. This means that - with the dismantling of all filling units and the filler is completely removed. An additional supporting framework or a supporting frame, as used in the packing machines known in the prior art, is not required in the packaging machine according to the invention.

Preferably, the (multi-part) filler connects the upper reservoir with a lower base plate. The base plate serves as a spacer for the lower ends of the filling units. A centrally located guide on the base plate holds the vertical axis of rotation and thus prevents the entire packaging machine from oscillating. The base plate preferably serves essentially to cover the area below the filling body. Preferably, the base plate hangs on the filling units of the filling device, which in turn are fastened to the storage container provided in an upper region. Overall, this results in a hanging structure of the packing machine. A use in non-hanging construction is possible. In preferred developments, at least one further filling module component is arranged on the self-supporting filling unit. In this case, such a filling module component is taken in particular from a group of components which comprise a drive for the filling member or conveying member, a gearbox, a belt drive with a clamping system, a bag chair or a bag holding device, a bag closing unit for closing valve bags, a weighing system, a control unit for controlling the filling unit, a dust removal device, a Sackabwurfeinrichtung and a bag chair includes.

In particular, the Füllmodulkomponenten are attached to the self-supporting filling unit, wherein the attachment can be made directly to the self-supporting filling unit. Also possible is the indirect fastening of a component to the self-supporting filling unit via a component fastened directly to the self-supporting filling unit. In this way, all components of a filling module can be fastened to the self-supporting filling unit. Such a configuration is particularly positive, since each filling unit and each filling module can be regarded in this way as an independent packing unit, which is completely pre-assembled and can be used after the arrangement of a product silo as packing machine.

In particularly preferred developments of the reservoir is suspended rotatably about a central axis of rotation. Such a rotatable packaging machine has significant advantages in that a plurality and a plurality of filling units can be arranged around the circumference of the packaging machine. For example, 6, 8, 10, 12, 14, 16 or even 18 or 20 or even more filling units or filling modules can be provided over the circumference of the rotating packaging machine, which continuously rotates during the filling. During the rotation will be on a certain angular position, the valve bags are fitted, and are filled during rotation until they are removed or discarded in the filled state at a further predefined angular position and are supplied via, for example, a discharge conveyor of a palletizer or the like.

Rotary packaging machines allow high and highest filling capacities and a high degree of automation of the process, as both automatic splicing and automatic removal and automatic transport of the bags is possible.

Preferably, a rotary encoder is provided in a rotating packaging machine at a central axis of rotation of the packaging machine. About such a rotary encoder is even without the use of additional sensors at any time the determination of the angular position of the individual filling modules and the filler of the respective filling modules possible, so that a reliable control of the packing machine is possible.

For safety-critical control of functions of a packaging machine, control of the safety functions by software alone is often not permitted. Therefore, it is particularly preferred to use a detector system which serves to detect safety-relevant positions.

Advantageously, the detector system is provided at the central axis of rotation of the packaging machine and comprises at least one and in particular a plurality of detectors, so that preferably each filling unit or each filling module is associated with at least one detector to allow a mechanically coupled detection of the angular position of the filling modules. About such a detector system, a reliable control of such a packing machine is possible with relatively little effort. Since the arrangement of the detector system to a central axis of rotation occupies little space, the detector system can be pre-assembled and is particularly susceptible to faults and defects.

By contrast, in the prior art detector systems were used which had mechanical or optical sensors at the outermost edge of the rotatable packaging machine. In such known detector systems, a high installation effort is required and for each filler neck a separate detector must be mounted and wired separately.

In contrast, an integrated detector system offers considerable advantages, which is mounted on the central axis of rotation of the packaging machine. The detectors provided on the integrated detector system can be pre-assembled separately so that the integrated detector system can be placed completely pre-assembled on the central axis of rotation. If necessary, the connection is sufficient via a data bus system, so that a complex cabling on site can be omitted.

In all the embodiments described above, the filling unit preferably comprises a carrier unit which is formed by the filling pot and a support profile to form the self-supporting filling unit. The self-supporting character of the filling unit is made possible in this embodiment by the carrier unit, which consists in a simple case of the filling pot and the support or support profile. In this case, the support profile can be fixed under the filling pot in which the support profile is screwed, for example, to the filling pot or welded to it.

The support profile can then be used to assemble the other components of the filling module. Overall, this results in a compact filling unit with self-supporting properties, so that the complete filling unit with the filling module can be pre-assembled separately. All too pneumatic and / or electrical lines can be routed to the filling module before the filling unit is mounted in its entirety on the packing machine.

In all embodiments and further developments of the packaging machine according to the invention, it is particularly preferred that a dedusting device is provided on at least one and in particular on each filling unit or each filling module. By means of such dedusting can occur during or after the filling dust is effectively sucked to keep the packing machine and its environment as clean as possible.

The dedusting device preferably has a dedusting channel on the support profile. Such a dust removal channel can be fastened, for example, to the support profile. In particularly preferred embodiments, the support profile is hollow, so that the hollow interior of the support profile for receiving lines and the like may be provided.

Particularly preferably, a dedusting duct is provided in the interior of the hollow support profile or the interior of the hollow support profile serves as a dedusting duct. Such a configuration is particularly advantageous because the support profile is not only used for fastening and receiving the other components of the filling unit, but also serves in a flexible manner for the discharge of the extracted dust. As a result, the structure of the filling unit is simpler and more compact, so that valuable space can be saved.

Particularly preferably, the conveying member is designed as a vertical conveyor turbine or as a vertical turbine, which is arranged rotatably about an at least substantially horizontally arranged axis of rotation. In this case, the vertical turbine on turbine blades or impellers, which in particular sym- metric are distributed over the circumference of the vertical turbine. The vertical turbine is arranged in particular in the filling pot, which also serves as an inlet for the vertical turbine.

The drive of the conveying member may be connected via a gear or a conveyor belt with the conveying member. If an electric motor arranged at least substantially vertically is used as the drive, it can be coupled to the vertical turbine via an angle gear. Thereby, the arrangement of the electric drive on the back of the filling module is made possible, while the filler neck protrudes on the front of the filling module. In the case of a vertically arranged electric drive, in the case of a rotating packing machine, this requires very little space, so that an arrangement with small angular distances is possible. As a result, the diameter of the packing machine can be reduced.

In typical packing machines, vent holes are often provided on the conveyors or fill plugs to provide edge ventilation to the housing of the fill pot which reduces friction. In vertical turbines such ventilation holes are usually provided in the lowest part of the Fülltopfs to ensure there an effective onward transport of the bulk material to be filled. Now, if below the Fülltopfs the support profile is arranged and a vertical turbine is used, the supply of fluidizing air from below may be difficult. But in other embodiments, the supply of fluidizing air in the lower region of the Fülltopfs for different reasons can be difficult.

In these and other embodiments, a preferred development of the present invention provides a remedy, including provided in the housing of the Fülltopfs mounting holes and receiving holes transversely passing through ventilation holes are, with the ventilation holes open into the delivery chamber of the conveying member. This means, in particular, that the ventilation bores open into the lower region of the filling pot in order to selectively pressurize fluidizing air there. In the case of a vertical turbine, the lowest area of the filling pot can thus be effectively fluidized or the conveyance of the bulk material to be filled can be supported.

The receiving bores in the housing of the Fülltopfs are preferably aligned approximately parallel to the axis of rotation of the filling turbine, so that a longitudinal axis of the receiving bore extends approximately parallel to the inner housing wall of the Fülltopfs. The ventilation holes, however, are drilled from the outside into the housing of the Fülltopfs and extend through the mounting holes into the interior of the Fülltopfs inside. The outer openings of the ventilation holes can then be closed by appropriate plugs or the like, so that an air supply to the interior of the Fülltopfs via the lateral opening of the receiving bore is possible.

Preferably, a ventilation unit is introduced into the receiving bore, with which the air supply is controllable in the delivery chamber. An air connection for the ventilation unit may be provided at the lateral end of the receiving bore. In the preferably approximately cylindrical ventilation unit, a valve for controlling the .Airstroms and / or an electrical or electronic control can be provided.

By means of such ventilation units in corresponding receiving bores, a reliable supply of fluidizing air into the interior of the delivery chamber of the filling pot can be made possible, although a support profile directly adjoins the bottom of the filling pot. Such an air supply is also possible in other cases, in which the corresponding places that are provided for the introduction of fluidizing air no space is available. Ultimately, the mounting holes allow a lateral supply of air, which is deflected in the mounting holes to the ventilation holes.

The ventilation holes preferably do not open perpendicular to the inner surface of the feed chambers, but at an angle inclined to the inner surface to initiate the air supply in the mouth region in the transport direction of the conveying member and so to promote the delivery of the material to be filled.

Preferably, the receiving bores are provided in a lower region of the Fülltopfs and may be provided in particular in the connection region of the Fülltopfs with the support profile.

Further advantages and possible applications of the present invention will become apparent from the description of an embodiment, which will now be explained with reference to the accompanying figures.

In the figures show:

Fig. 1 is a perspective view of a packaging machine according to the invention;

Fig. 2 is a plan view of the packing machine of Fig. 1;

3 is a highly schematic plan view of a packaging machine according to the invention;

4 shows a side view of a filling unit without a sack chair for a further packing machine; Fig. 5 is a highly schematic view of the filling unit of Fig. 4;

Fig. 6 is another side view of the filling unit of Fig. 4;

FIG. 7 shows a support profile of the filling unit for the packing machine according to FIG. 1; FIG.

8 shows a highly schematic cross section through a filling pot of a filling module;

9 shows a first side view of a filling unit equipped with a bag chair;

FIG. 10 shows a further side view of the filling unit according to FIG. 9; FIG. and

11 shows a filling unit with a bag closing unit.

With reference to FIGS. 1 to 11, exemplary embodiments of packaging machines 1 are explained below, each of which is embodied as a rotating packaging machine and in the exemplary embodiment here comprise twelve respectively identical filling units 30 each having a filling module 2.

In other embodiments, a rotary packaging machine may also be 6, 8, 10 or e.g. 16 or more filling units 30 and filling modules 2 have.

The packing machine 1 shown in a perspective view in FIG. 1 is shown schematically here, with the drive motor 31 on the upper side being omitted for better clarity. The packaging machine 1 has a filling device 23, which here consists of twelve filling units 30 with filling modules 2. The filling units 30 with the filling modules 2 are arranged distributed symmetrically over the circumference of the packing machine 1, wherein each filling module 2 here has a filler neck 5 and a bag chair 20 to the valve sacks to be filled 4 (see Fig .. 6) with a To fill bulk material 3 and to support the bag 4 during the filling process from below by means of the bag chair 20.

In addition filling units 30 with filling modules 2, which are equipped with a bag chair 20 for supporting and for the discharge of the valve bag 4, and filling units 30 can be used with filling modules 2, in which no bag chair is provided. There, the valve bags 4 can be removed by hand or it is e.g. a central Sackabschieber provided which decreases the filled valve bags 4 of the filler neck 5 of the filling modules 2. A filling unit 30 without a sack chair is shown in side views in FIGS. 4 and 6. Filling units 30 with a bag chair 20 are shown in side elevations in FIGS. 9, 10 and 11. Figure 5 shows a schematic representation which is valid for embodiments with and without a sack chair.

The filling device 23 for filling sacks 4 with bulk materials 3 is arranged below the silo or storage container 43. As a result of the filling units 30, the filling device 23 forms a filling body 24 which connects the base plate 44 to the storage container 43. The filling units 30 are each designed as self-supporting filling units 30. As a result, each filling unit 30 can be completely pre-assembled with the filling module 2 before it is mounted in its entirety on the packing machine 1. This saves time and space. Each filling module 2 or its self-supporting filling unit 30 comprises a frame 6 or a support profile 56 to carry the filling module 2 and to attach the filling module components 45 thereto. Füllmodulkomponenten 45 are, for example, the filler neck 5, the drive 9, the filling pot 7 with the conveying member 8, and an angle gear 17. Other components can be attached to the frame 6 and the support section 56.

For each filling unit 30, a control cabinet 32 is provided, which is arranged here in the vertical direction above the respective filling nozzle 5 and may be part of a filling unit 30. In the cabinet 32, a control unit 46 may be provided. It is also possible that the control cabinet 32 is designed in two parts, so that a part of the control cabinet 32 is part of the filling unit 30 and another part of the cabinet 32 is fixedly attached to the reservoir 43 of the packing machine 1. The filler 24 is formed here by the filling units 30. A separate support frame for receiving the filling modules 2 is not required on the packing machine 1. The filling body 24 or the filling units 30 with the filling modules 2 are fastened to the storage container 43 from below and, in particular, screwed on, so that the filling device 23 is suspended on the storage container 43.

FIG. 2 shows, in a plan view from above, the packaging machine 1, with the bag chairs 20 projecting radially outward from the filling body 24 with the filling nozzles 5 of the filling modules 2.

For a simple clarification of the principle, a highly schematic plan view of a packaging machine 1 according to the invention is shown in FIG. 3, wherein only one filling unit 30 with a filling module 2 is shown. Each filling unit 30 is arranged in an angular segment 21, which here extends over an angle 29 or which here covers an angular range of 30 °, so that a total of twelve filling units 30 can be arranged over the circumference of the packing machine 1.

Each filling module 2 here in the exemplary embodiment comprises a filling pot 7, from which the bulk material 3 is fed to the conveying member 8, which fills the bulk material 3 through the filler neck 5 in a valve bag 4.

Above the filling body 24, a storage container or silo 43 is provided. The filling pot 7 product is supplied from above from the reservoir or silo 43 inside the machine. The storage container 43 is in turn supplied, if necessary, product from a product silo provided above the packing machine and not shown here.

The filling pot 7 can receive a certain amount of the bulk material 3 to be filled as an intermediate reserve, but it is also possible that the filling pot 7 serves practically only as an inlet or as a housing for the conveying member 8.

The conveying member 8 is a vertically arranged conveying turbine 14, which has turbine blades 38 (see Fig. 5) and which are arranged rotatably about a horizontal axis of rotation 11 here in order to convey the bulk material 3 in the filler neck 5.

The vertical conveyor turbine 14 with its horizontal axis of rotation 11 is driven by a drive 9, which is also part of the filling module 2. In order to reduce the space requirement of a filling unit 30 or of a filling module 2, in particular when used on a rotating packaging machine 1, the motor 9 designed as an electric motor is arranged on the rear side 16 of the filling module 2, while the filler neck 5 is provided on the front side 15. This means that when installed in a rotating packaging machine 1, the electric drive 9 radially inward in a inner portion 63 is disposed while the filler neck 5 is provided radially outward.

The vertically arranged electric drive 9 takes by this arrangement considerably less space in the circumferential direction than in a horizontal arrangement. Since the available space at such an angle segment 21 increases with increasing radius and since the filler neck 5 is arranged in the outer region, a vertical arrangement of the electric drive 9 in the inner region 63 can lead to a very considerable space savings, so that the radial space greatly can be reduced.

In the case of a horizontal arrangement of the electric drive 9 as provided in the prior art, the radius of the filling body 24 would, however, have to be increased substantially in order to provide the angle segment at the outer radius with a sufficient circumference for the length of the electric drive 9. In contrast, allowed in the illustrated packaging machine 1, the vertical arrangement of the motor 9 and the mutually inclined arrangement of the axes of rotation 10 and 11 a considerable small footprint for the packaging machine. 1

In the present example, with an equal number of filling nozzles 5, the diameter of the filling body 24 could be reduced from about 3 m by about 20% to about 2.40 m diameter, so that the volume and the diameter in FIG. . 3gestrichelt .eignzeichnet land requirement 12 of the packing machine 1 is greatly reduced at the site. The reduction of space requirements at the level is more than a third here.

Furthermore, due to the smaller diameter, the transport costs at the time of delivery of the machine are reduced, since as a rule a normal truck is sufficient for transport. A slip-on machine 27, which is shown only schematically in Fig. 3, inserted here in the embodiment, the valve bags 4 on the filler neck 5, while the filler neck 5 rotates past the slip-on machine 27. Due to the considerable reduction of the outer diameter by about 20%, the peripheral speed of the filler neck 5 is reduced by about 20%, so that the slip-on machine 27 can meet a further increased Aufsteckquote at the same speed and performance of the packing machine.

During the rotation about the axis 25, the valve bags 4 are filled so that they are completely filled upon reaching the discharge belt 28 and can be removed again. For this purpose, the bag chair 20 is activated, which decreases the valve bags 4 from the filler neck 5 and drops onto the discharge belt 28. There, the valve bags 4 can be subjected to a weight control.

As can be seen in FIG. 2, a detector system 52 is arranged on the central axis of rotation 25 and has a plurality of detectors 53 in order to determine directly at the central axis of rotation 25 the angular position of the individual filler neck 5. For this purpose, preferably as many detectors 53 are provided as filler neck 5 or filling modules 2. In this way, the angular position of the individual filling modules 2 is detected directly with hardware independently of software. Such an angle query is important for safety functions, as it allows _z. For example, it is ensured that a bag closing unit 64 (see Fig. 11) can only be activated if it is in the intended angular range.

For general control, a rotary encoder 51 can be arranged on the central axis of rotation 25 in order to be able to determine the position of all the filling modules 2 at any time. For example, the filling process can be controlled in dependence on the signal of the rotary encoder 51. It is possible at each filler 5 a

A sack closing unit 64 may be provided for all valve sacks 4 at a predetermined angular position of the packaging machine 1 or on or on the discharge belt 28.

A drive motor 31 drives the packing machine 1 in rotation via a drive belt.

In Fig. 5, the operative connection of the particular electric drive 9 with the conveying member 8 and the vertical conveyor turbine 14 is shown in a highly schematic representation. The vertically arranged motor or electric drive 9 has an output shaft 39 whose axis of rotation 10 is also arranged vertically or upright. The output shaft 39 of the electric drive 9 is connected via a belt drive 18 to the input shaft 40 of an angle gear 17. Here, the axis of rotation 34 of the input shaft 40 is aligned here approximately parallel to the axis of rotation 10 of the electric drive 9.

In the angular gear 17, which may optionally also be designed as a propeller shaft, an angular conversion takes place, so that the output shaft 35 of the angular gear 17 horizontally or approximately horizontally exits the bevel gear 17. The output shaft 35 is connected to the vertical conveyor turbine 14, wherein djLe axis of rotation of the drive shaft 35 and the axis of rotation 11 of the conveyor turbine 14 are aligned.

This means that the electrical drive 9 rotating about a vertical axis of rotation 10 is connected via the angle gear 17 to the turbine blade 38 of the conveyor turbine 14 rotating about a horizontal axis 11. This construction allows a particularly space-saving design, since the radially inward arranged motor or electric drive 9 there less footprint needed.

FIGS. 4 to 6 show an exemplary embodiment of the filling unit 30 in different representations. The filling unit 30 shown in FIGS. 4 to 6 does not have a blind chair here, but could possibly be equipped with it.

In Fig. 4 is a sectional side view of the filling module 2 and the self-supporting filling unit 30 is shown. The self-supporting filling unit 30 comprises a carrier unit 54. The carrier unit 54 here consists of the upper filling pot 7 and thus attached to its underside support profile 56. On the support section 56 and the filling pot 7, the other components of the filling module 2 are attached directly or indirectly. During assembly of the filling unit 30, the filling pot 7 is docked from below onto the storage container or the silo 43 of the packing machine 1.

On the front 15 of the filling unit 30, the filler neck 5 is provided, while the electric drive 9 is arranged on the rear side 16 and connected via a drive belt 18 and in the illustration of FIG. 4 poorly visible angle gear 17 with the vertical conveyor turbine 14.

The individual components or filling module components 45 are arranged on the frame 6 or the carrier unit 54, so that the filling unit 30 with the filling module 2 is compact and self-supporting and can be attached with little installation effort to the reservoir 43 of a packaging machine 1 and provided there interchangeable is.

Among other things, this leads to the advantage that even with a particularly intensive maintenance of a filling unit 30 or at Replacement of individual components packing machine 1 must be stopped only relatively short to remove the corresponding filling unit 30 with the corresponding filling module 2 from the packing machine 1. In exchange for this, another corresponding filling unit 30 can be attached to the filling device 23 of the packaging machine 1, and the operation of the packing machine 1 can be continued without having to wait for the repair of the corresponding filling unit 30.

Alternatively, it is also possible to close the connection to the silo 43 and continue to operate the packing machine 1 without the filling unit 30 removed for maintenance, so that the packing machine 1 can continue to be used during the maintenance and repair time.

In normal regularly performed maintenance, a removal or replacement of the filling unit 30 is not necessary. For example, the turbine blades 38 can be exchanged without removing the filling module 2 or the filling unit 30. However, if a more complex repair is necessary, the filling unit 30 can be removed with the filling module 2.

The filler 5 is equipped with a bag tester 33 to check before the start of the filling process, whether a valve bag 4 attaches to the filler neck 5. The filling process is only started if the bag tester 33 detects a bag.

The filler neck 5, as can be seen in particular from the illustration in FIG. 4, is fed from the vertical conveying turbine 14, the bulk material 3 from the filling pot 7. In this case, the vertical conveyor turbine 14 is rotatable about a plane perpendicular to the plane of rotation 11, while the electric drive 9 of the vertical conveyor turbine 14 is rotatably disposed about an axis of rotation lying within the plane of the drawing. Of the Angle 13 between the axes of rotation is here 90 °. Even larger and smaller angles are possible.

4 that the longitudinal extent 26 of the electric drive 9 in the vertical direction is considerably larger than the diameter 36 of the electric drive 9, so that by the vertical arrangement of the electric drive 9 in the circumferential direction considerably space or Floor space can be saved.

6, the other side view of the filling unit 30 is provided with the filling module 2, in which the angle gear 17 is shown in front of the filling pot 7. In this view, the electric drive 9 is not shown, which is connected to the motor terminal 37 during assembly. To illustrate the filling process, a valve bag 4 is shown on the filler neck 5, which is filled with bulk material 3. In Fig. 6, the filling valve 22 and its drive cylinder is visible, whereby a reduction of the flow through the filler neck 5 is made possible by the filling channel can be narrowed accordingly.

From the weighing device 19 of the filler neck 5 and the valve bag 4 is measured during the filling process and from the known weight of the filler neck 5 is closed back to the filled weight of the bulk material 3 and controlled the filling operation in dependence on the determined weight.

7 shows the carrier unit 54 of the self-supporting filling unit 30. The carrier unit 54 consists of the filling pot 7 provided above and the supporting profile 56, which is connected to the lower region of the filling pot 7. The carrier unit 54 may also be formed as a frame 6, to which the filling pot 7 is attached. Here, the self-supporting character of the filling pot 7 forms with the associated support profile 56. The support unit 54 can also be designed as a support profile 56. be formed, to which the other components are attached.

Here, the self-supporting filling unit 30 is fixed with the filling pot 7 to the reservoir 43 located above it in order to mount the filling module 2 on the packing machine 1.

In Fig. 8 is a highly schematic representation of the cross section through a filling pot 7 of a filling module 2 is shown. In a lower region of the housing 57 of the Fülltopfs 7 at least one receiving bore 58 is introduced in the connecting region 62 between the Fülltopf 7 and the support section 56, wherein the receiving bore 58 is aligned here horizontally and approximately parallel to the axis of rotation 11 of the conveyor turbine 14. The filling pot 7 connected to the support profile 56 has, in the wall of the housing 57, at least one ventilation bore 59 transversely to the receiving bore 58. The ventilation hole 59 protrudes into the delivery chamber 60 of the conveying member 8 and flows there at an angle, such that a directed into the ventilation hole 59 air flow supports the transport of the bulk material 3.

In the receiving bore 58, a ventilation unit 61 is arranged, which controlled by the control unit 46 gives air to the conveyor turbine 14. By the ventilation in the lower region of the delivery chamber 60, the friction of the bulk material 3 is reduced to the wall of the housing 57, so that a friction and low-wear filling is possible.

Although here the space below the Fülltopfs 7 is not free, but is occupied by the support section 56, can be ensured via the equipped with appropriate valves ventilation units 61 if necessary, an optimal air supply. In this case, the outer opening of the ventilation hole 59 through the connection with the support profile 56 be closed, because the air supply can be done via the receiving bore 58 and the ventilation unit 61.

FIG. 9 shows a first side view of a filling unit 30 equipped with a bag chair 20. The filling module 2 embodied as a self-supporting filling unit 30 comprises a filling pot 7 and a support profile 56 which form the carrier unit 54 to which the further components of the filling unit 30 are fastened are. In the attached to the filling unit 30 control cabinet 32, a control unit 46 is arranged.

The vertically arranged motor 9 has a vertical axis of rotation 10, which is connected via a drive belt 18 and an angle gear 17 with the conveyor turbine 14, which is designed as a vertical turbine and the turbine blades 38 are rotatably mounted about a horizontal axis of rotation 11.

A bag chair 20 serves to support the bag 4 during the filling process. In order to reduce the dust load, a dedusting device 50 is provided which has dust removal channels 55. The dedusting ducts 55 run as far as possible through the hollow support profile 56. As a result, different functions are simultaneously realized with the support profile 56. On the one hand, the self-supporting function of the filling unit 30 is made possible by the support profile 56, so that the filling unit 30 can be preassembled. On the other hand, the support profile 56 serves as dedusting channel 55, so that the assembly is simplified.

In Fig. 10 is a side view of a filling unit 30 is shown, which is equipped with a bag chair 20. Incidentally, the filling unit 30 and the filling module 2 are constructed analogously to the filling unit 30 and the filling module 2 from FIG. 4.

The filling unit 30 shown in Fig. 11 also has a bag chair 20. Also here is a Sackverschließeinheit 64 on the filling unit 30 or on the filling module 2 as a further Füllmodulkomponente 45 is provided. After completion of the filling process, the valve of the filled valve bag 4 is welded to the executed in particular as Ultraschallverschließeinheit Sackverschließeinheit 64 in this embodiment. After welding, the valve bag 4 can be automatically removed at the angular position of the discharge belt 28 and transported away.

A packing machine 1 serves for filling bulk goods 3 in sacks and in particular in valve sacks 4 and may comprise at least one storage container 43 and a filling device 23 or a filling body 24 with a plurality of filling units 30 with filling modules 2. Each filling module 2 may be formed as a self-supporting filling unit 30, on which the filling pot 7, the filler neck 5 and the conveying member 8 are arranged.

The illustrated packing station 1 requires a significantly reduced space requirement and this filling modules 2 can be attached interchangeable, thereby saving manufacturing and transport costs and maintenance costs can be reduced.

List of reference numbers:

1 packing machine 31 drive motor

2 filling module 32 control cabinet

3 bulk goods 33 bag testers

4 Valve bag 34 rotation axis

5 filler neck 35 output shaft

6 frame 36 diameter

7 filling pot 37 motor connection

8 conveying element 38 turbine blade

9 Drive 39 Output shaft Motor

10 axis of rotation 40 input shaft

11 Rotary axis 43 Reservoir, silo

12 space requirement 44 base plate

13 angle 45 filling module component

14 conveyor turbine 46 control unit

15 Front 50 De-dusting device

16 Rear 51 Rotary encoder

17 Angular gear 52 Detector system

18 drive belt 53 detector

19 Weighing device 54 carrier unit

20 Sack chair 55 dedusting duct

21 Angle segment 56 Support profile

22 filling valve 57 housing

23 Filling device 58 Mounting hole

24 fillings 59 ventilation hole

25 Central axis of rotation 60 Delivery chamber

26 Longitudinal extension ^" 61 Ventilation unit

27 Bag-on-machine 62 Connection area

28 discharge belt 63 inner region

29 angle 64 Sackverschließeinheit

30 filling unit

Claims

Claims :

1. Packing machine (1) for filling of bulk materials (3) in bags and in particular in valve bags (4) with at least one provided in an upper region reservoir (43) and an underlying filling device (23) with a plurality of filler neck (5), characterized in that the filling device (23) has a plurality of

Filling units (30) comprises, and that each filling unit (30) is self-supporting and comprises a filling module (2), to each of which at least one filling pot (7), a filler neck (5) and a

Conveying member (8) are arranged.

2. Packing machine (1) according to claim 1, wherein the filling device (23) forms a self-supporting filling body (24) with the filling units (30).

3. packing machine (1) according to claim 1 or 2, wherein the filler (24) connects the upper reservoir (43) with a lower base plate (44).

4. packing machine (1) according to at least one of the preceding claims, wherein at the self-supporting filling unit (30) at least one further filling module component (45) is arranged, wherein the filling module (45) is taken from a group of components, which drive (9 ) for the conveying member (8), a gear (17), a belt drive (18) with a clamping system, a bag chair (20), a bag closing unit (64) for closing valve bags (4), a weighing system (19), a Control unit (46), a dedusting device (50), a Sackabwurfeinrichtung and a bag chair comprises.

5. packing machine (1) according to at least one of the preceding claims, wherein the storage container (43) is suspended rotatably about a central axis of rotation (25).

6. packing machine (1) according to the preceding claim, wherein at the central axis of rotation (25) a rotary encoder (51) is provided.

7. packing machine (1) according to at least one of the preceding claims 5 to 6, wherein at the central axis of rotation (25) a detector system (52) with a plurality of detectors (53) is provided, each filling module (2) a detector (53 ) in order to enable a mechanically coupled detection of the angular position of the filling modules (2).

8. Packaging machine (1) according to at least one of the preceding claims, wherein the filling module (2) comprises a carrier unit (54) which is formed by the filling pot (7) and a support profile (56) to the self-supporting filling unit (30) form.

9. packing machine (1) according to at least one of the preceding claims, wherein at each filling module (2) a dedusting device (50) is provided.

10. Packing machine (1) according to the preceding claims 8 and 9, wherein the dedusting device (50) has a dedusting duct (55) on the support profile (56).

11. Packing machine (1) according to the preceding claim, wherein the support profile (56) is hollow and the dedusting duct (55) extends at least partially in the interior of the support profile (56).

12. Packing machine (1) according to at least one of the preceding claims, wherein the conveying member (8) is designed as a vertical conveyor turbine (14).

13. packing machine (1) according to at least one of the preceding claims, wherein in the housing (57) of the Fülltopfs (7) receiving bores (58) and these transversely passing through ventilation holes (59) are provided, wherein the ventilation holes (59) in the delivery chamber ( 60) of the conveying member (8.) open.

14. packing machine (1) according to at least one of the preceding claims, wherein in the receiving bores (58) ventilation units (61) are introduced, with which the air supply into the delivery chamber (60) is controllable.

15. packing machine (1) according to at least one of the preceding claims, wherein the receiving bores (58) in a lower region of the Fülltopfs (7) are provided.

16. packing machine (1) according to at least one of the preceding claims, wherein the receiving bores (58) in the connecting region (62) of the Fülltopfs (7) with the support profile (56) are provided.