DE102018125212A1 - Packing system component with a valve bag filling tube for filling valve bags - Google Patents

Abstract

Packing system component (1) with a valve bag filling tube (2) for filling valve bags (3) with bulk materials (4), the valve bag filling tube (2) extending between a proximal end (5) and a distal end (6) and a filling channel (7 ) with a product inlet (8) and a product outlet (9). The valve bag filling tube (2) comprises a suction channel (10) in order to extract excess air from a valve bag (3) attached to the valve bag filling tube (2). There is a considerable distance (20) between the product outlet (9) of the filling channel (7) and a suction opening (11) of the suction channel (10), which is greater than one fifth of a clear inner diameter of the filling channel (7).

Description

The present invention relates to a packaging system component with at least one valve bag filling tube for filling valve bags, in particular with bulk materials, the valve bag filling tube extending in the intended operation between a proximal end on a packaging machine and a distal end and comprising at least one filling channel. A valve bag is placed on the distal end and at least also held by the valve bag filling tube during the filling process. But it is e.g. B. possible that the valve bag is at least temporarily supported by a bag chair or the like during the filling process.

In particular, the packaging system component according to the invention is suitable and intended to fill light and fine pourable materials and powder products. With such products, the bulk material contains a considerable amount of air during filling. The packaging system component according to the invention is used in particular for filling methyl cellulose and in particular modified methyl cellulose.

In particular, the packaging system component according to the invention can also be suitable for filling aerosils and products for the production of colors and / or for filling soot particles or titanium dioxide particles or substances containing titanium dioxide or the like. However, the invention is also suitable for filling other pourable or flowable materials, in particular with a bulk density of less than 500 kg per cubic meter.

A wide variety of packaging system components with valve bag filling tubes are known in the prior art, which are suitable for filling bulk goods.

The DE 37 03 714 A1 discloses, for example, a filler neck for a packaging machine for filling powdery bulk goods. During the filling process, air is brought into the interior of the valve sack, which must be removed. The DE 37 03 714 A1 is based on a prior art in which the bulk material is passed through the filler neck from the proximal end on the packing machine and emerges from a filler opening of the filler neck at the distal end in order to fill the bag. In the direction of flow, a suction opening is formed on the filler neck immediately before the filling opening, by means of which excess air is sucked out of the interior of the bag. The DE 37 03 714 A1 In this solution, it considers it disadvantageous that the suction opening is relatively small and insufficient in performance. The DE 37 03 714 A1 therefore proposes a filler neck in which the entire distal end part is provided with a wall made of a porous filter material and in which the suction surface and the filter surface for suction are considerably enlarged. The product outlet adjoins the filter surface and is located closer to the proximal end than to the distal end. The part of the filler neck provided with the filter and for suction purposes is substantially larger in the longitudinal direction than the filler opening in the longitudinal direction. In operation, however, the filter area clogs up quickly due to the fine bulk material. Therefore at the DE 37 03 714 A1 compressed air blast cleaning is also provided to blow off the filter material. In addition, the middle section is designed so that an added filter can be replaced quickly. The system has not prevailed. Long-term, trouble-free operation is not possible with fine dusting products. The effort for maintenance is too great. In addition, the distance to insert and remove the sack is very long due to the long filter part, so that such filler necks cannot be used on conventional packing systems with swiveling sack chairs, but always have to be moved horizontally over a long distance. This is very time consuming.

The DE 10 2006 057 176 A1 therefore discloses a method and a device for filling a container with very light and fine pourable powder products, in which suction does not take place from the inside of the container at the filler neck. The venting takes place completely through the porous bag wall, whereby press jaws are brought up to the container or the valve bag to be filled to support the venting. This known device and the method that has become known with it work satisfactorily. The disadvantage is the relatively high effort, which is therefore most suitable for filling the finest products to be filled.

It is therefore the object of the present invention to provide a packaging system component, which improves the effective filling of light bulk goods.

This object is achieved by a packaging system component with the features of claim 1. Preferred developments and features of the present invention are the subject of the dependent claims. Further advantages and features of the present invention result from the general description and from the description of the exemplary embodiment.

A packaging system component according to the invention comprises at least one valve bag filling tube for filling valve bags, in particular with bulk materials. The valve bag fill tube extends between a proximal end and one distal end and comprises at least one filling channel with a product inlet and a product outlet. The valve bag filling tube comprises at least one suction channel in order to be able to suck off excess air from the inside of a valve bag attached to the valve bag filling tube. There is a considerable distance between the product outlet of the filling channel and a suction opening of the suction channel. The distance is in particular greater than 1/5 of a clear inner diameter of the filling channel.

The packaging system component according to the invention has many advantages. A considerable advantage of the packaging system component according to the invention is that the considerable distance between the product outlet of the filling channel and the suction opening of the suction channel ensures that no bulk material or only small amounts of bulk material are sucked out of the valve bag with the air. This ensures effective filling of bulk goods in valve bags.

In particular, the suction channel is designed without a filter, which means that no filter is designed or mounted on the valve bag filling tube, which is intended to retain bottled bulk goods with the extracted air from the inside of the bag. In the case of the packaging system component according to the invention, a (small) proportion of bulk material can also be extracted with the air to be dedusted. The bulk material fraction is separated from the extracted air in particular in a separate dedusting device, but the dust component is considerably lower than in the prior art.

By dispensing with a filter on the valve bag filling tube, reliable and permanent operation is made possible. It is not necessary, after a certain number of operating minutes or operating hours or after each valve bag has been filled, to blow out and / or to check or replace a filter directly on each valve bag filling tube, which takes time and can pollute the environment.

In the packaging system component according to the invention, the considerable distance between the product outlet at the filling channel and the suction opening of the suction channel ensures that no or only a very small proportion of the filled bulk material is entrained with the extracted excess air.

The distance between the product outlet of the filling channel and the suction opening of the suction channel is preferably greater than 1/4 and in particular greater than 1/3 and preferably greater than half of a clear inner diameter of the filling channel. Even larger distances are possible and preferred.

The distance between the product outlet of the filling channel and the suction opening of the suction channel is preferably greater than 1/10 of the length of the valve bag filling tube or also greater than 1/10 of the length of the valve bag filling tube from the distal end to a possibly provided bag depth stop. In particular, the distance is greater than 1 cm and preferably greater than 1.5 cm or greater than 2 cm and can also be greater.

The distance between the product outlet of the filling channel and the suction opening of the suction channel is preferably greater than a sixth or in particular greater than a fifth and preferably greater than a quarter of the outer diameter of the valve bag filling tube in all configurations and can reach and exceed a third. In such configurations, suction is carried out from a calm area.

In particular, the distance is less than 2/3 or in particular less than 1/2 of the length of the valve bag filling tube. The distance between the product outlet of the filling channel and the suction opening of the suction channel is in particular smaller than the simple diameter of the valve bag filling tube. An extraction there is advantageous.

In all preferred configurations, the valve bag filling tube is preferably a filling tube unit and consists of several components.

The valve bag filling tube preferably has a product outlet which is advanced toward the suction opening of the suction channel. Especially with light and dusty products, it has been shown that if a suction opening is formed on the valve bag filling tube directly next to the product outlet, a lot of product is sucked off again directly at the filling nozzle. By extending the valve bag filling pipe to the front and shifting the product outlet further to the front, the exhaust air flow no longer acts directly next to the product flow, but instead sucks up a calm space behind, in which the proportion of bulk material is considerably lower.

In all configurations, it is preferred that the valve bag filling tube is attached to a packaging machine with a proximal end and that the distal end protrudes from the packaging machine. The sack valve of a valve sack is pushed, opened or pushed onto the distal end in order to fill the valve sack.

In preferred developments, the product outlet is arranged closer to the distal end of the valve bag filling tube than the suction opening of the suction channel. The suction opening particularly preferably has a cross section which is parallel to the Product outlet is formed. The product outlet and the suction opening can be formed perpendicular to the longitudinal extension of the valve bag filling tube. However, it is also possible for the suction opening to run obliquely to the longitudinal extent of the valve bag filling tube, for example. It is preferred that the product outlet of the filling channel is arranged closer to the distal end of the valve bag filling tube than the suction opening of the suction channel.

The suction channel preferably extends over at least one longitudinal section approximately in a horseshoe shape around the filling channel. Particularly preferably, the suction opening of the suction channel extends approximately horseshoe-shaped around the filling channel. It is also possible that the suction opening completely surrounds the filling channel at the product outlet. In simple configurations, it is preferred that the suction channel does not completely surround the filling channel.

In all configurations, it is preferred that the filling channel is formed by a tubular part over at least one longitudinal section. The tube part is part of the valve bag filling tube. The suction channel preferably extends approximately horseshoe-shaped or U-shaped or in particular crescent-shaped around the tubular part. A V-shaped configuration of the suction channel and / or the suction opening of the suction channel is also possible.

The suction channel and / or the suction opening of the suction channel preferably has a larger cross-section in a lower region in the assembled state than in an upper region. It is possible for the suction opening to enclose the filling channel at an angle of at least 180 °, 210 °, 240 °, 300 ° or 330 ° or more.

In all configurations, it is preferred that the filling channel is arranged eccentrically and in particular eccentrically in the valve bag filling tube. The filling channel is preferably arranged slightly eccentrically upward in the valve bag filling tube. In preferred configurations, an axis of symmetry of the valve bag filling tube is displaced perpendicular to an axis of the suction channel or of the tube part. The displacement in the vertical direction is preferably less than 1/10 of the diameter of the pipe part and / or the filling channel.

It is preferred that at least one blow-out opening and in particular at least one blow nozzle is arranged in the filling channel. Via the at least one blow-out opening, it is possible to blow out the bulk material located in the filling channel at the end of a filling process (into the valve bag still attached). As a result, the weight accuracy during filling can also be increased, particularly if it is a matter of gross weighing, in which the valve bag filling tube and thus the bulk material contained therein are also weighed during filling. Bulk material remaining in the valve bag filling tube then leads to a weight falsification.

Preferably, at least one adjustable bag depth stop is attached to the outside of the valve bag filling tube. This ensures a reproducible position of the valve bags when filling.

In all configurations it is preferred that a mounting flange is attached to the proximal end of the valve bag filling tube and a front cap is attached to the distal end of the valve bag filling tube. The front cap is in particular detachably mounted and can be screwed on. The front cap is preferably equipped with an assembly or disassembly aid. The front cap is in particular bevelled and / or conical at the distal end. A bevelled and / or conical design of the front cap makes it easier to attach the valve bags to be filled.

In all configurations, it is preferred that the valve bag filling tube is elongated and has a length that is greater than three times an internal clear diameter of the filling channel. The length of the valve bag filling tube is preferably greater than four times an internal clear diameter of the filling channel.

A baffle is preferably arranged between the product outlet and the suction opening. The baffle in particular prevents direct suction of the product flow after the bulk material has emerged from the product outlet. The baffle guides the bulk material further into the valve bag. The guide plate preferably has a relatively small radial extent. The guide plate preferably extends completely within the outer diameter of the valve bag filling tube.

In preferred configurations, the valve bag filling tube comprises a pressure sleeve (rubber sleeve) for fixing an attached valve bag and in particular a compressed air connection for inflating the pressure sleeve (also called an inflatable sleeve) and preferably a test opening for a bag tester and / or an air outlet for test air of a bag tester. If test air is blown in the direction of the test opening without an attached valve bag, the test air can escape through the air outlet. When a valve bag is attached, the test air is retained by the wall of the valve bag, so that an overpressure arises, which is detected accordingly. This ensures that a filling process is only started when a valve bag is attached. The pressure sleeve seals the valve bag filling tube against the valve bag to the outside, which, with a filling and the resulting excess pressure, prevents the bulk material from escaping at this point and thus undesirably discharging dust into the environment.

It is possible and preferred that the packaging system component comprises only one valve bag filling tube and is designed as such. However, it is also possible for the packaging system component to comprise further parts, components and units and, for. B. is designed as an exchangeable filling unit.

In all configurations, it is preferred that the packaging system component comprises further parts and components. It is possible and preferred that the packaging system component is designed as a filling tube unit and forms part of a packaging machine. In particular, the packaging system component comprises at least one filling pot and at least one conveying element and / or at least one bag chair. It is possible that the packaging system component comprises press jaws which act during the filling from the outside on a valve bag attached to the valve bag filling tube.

The packaging system component preferably comprises a plurality of conveying members and valve bag filling tubes which are attached to a machine body. The machine body can be designed to be rotatable in order to fill a plurality of valve bags with bulk material when the machine body rotates. In this respect, the packaging system component can also be designed as a complete packaging machine. The packaging system component is in any case part of a packaging system or designed as such.

Further advantages and features of the present invention result from the exemplary embodiment which is explained below with reference to the attached figures.

• 1 eine schematische Darstellung einer Packanlage in einer Draufsicht;
• 2 ein Ventilsackfüllrohr der Packanlage nach 1 in einer perspektivischen Darstellung;
• 3 eine perspektivische Ansicht schräg von vorn auf das Ventilsackfüllrohr nach 2; und
• 4 eine geschnittene Querschnittsansicht des Ventilsackfüllrohrs nach 2.

The figures show:

• 1 a schematic representation of a packing system in a plan view;
• 2nd a valve bag filling pipe according to the packing system 1 in a perspective view;
• 3rd a perspective view obliquely from the front of the valve bag filling pipe 2nd ; and
• 4th a sectional cross-sectional view of the valve bag filling pipe 2nd .

In the 1 shown packing system according to the application 100 in the exemplary embodiment comprises a rotating packaging machine 50 with a machine body 40 that is in the direction of the arrow 41 is rotatably drivable.

The packing machine 50 here shows a total of six valve bag filling tubes in the schematic representation 2nd on, each a packaging system component according to the invention 1 form. It is also possible that the packing machine 50 only four valve bag filling tubes 2nd or also includes 8, 10, 12, 14, 16 or more valve bag filler tubes that extend around the circumference of the machine body 40 are attached and rotate during operation.

It is also possible to use a non-rotating packaging machine 50 with a valve bag filling tube 2nd is equipped according to the invention, e.g. B. as a single nozzle system or as a line packing machine with two or more valve bag filling tubes.

The packing facility 100 here also includes a badge 70 that the valve bags to be filled 3rd on the valve bag filling pipes 2nd the packing machine 50 automatically attaches. When the machine body rotates 40 becomes the bulk material to be filled 4th in the valve bags 3rd filled. It is possible that any valve bag fill pipe 2nd a sack chair 30th is assigned to the valve bags 3rd assists in filling from below. It is also possible that every bag chair 30th Press jaws 31 respectively. 31a and 31b are assigned to the individual valve bag 3rd Before filling and / or during the filling process and / or after filling, press together from the outside in order to provide an optimal filling process.

As shown schematically and in broken lines, each individual valve bag filling tube is preferably shown 2nd a filling pot 32 and a funding body 33 assigned. The fill pot 32 stores a certain amount of bulk goods. About the funding body 33 , which is designed in particular as a filling turbine or a pressure pot, is through the valve bag filling pipe 2nd the valve bag 3rd the bulk goods to be filled 4th fed.

The packing system is preferably used for filling light bulk goods. In a concrete example, modified methyl cellulose is filled. Light and fine bulk goods which have a low bulk density are particularly preferably filled. The bulk density can be, for example, less than 250 kg per cubic meter and in particular less than 500 kg or up to 1000 kg per cubic meter or more. However, it is also possible to fill bulk goods with other bulk material densities.

After the filling process has been completed, the filled valve bags 3rd via a discharge conveyor 60 transported away. The bag weight can be checked.

2nd shows a perspective schematic representation of the valve bag filling tube 2nd as a packaging system component 1 . The valve bag filling pipe 2nd forms a filling tube unit, which consists of several individual parts, which are firmly (but detachably) connected to each other here. The valve bag filling pipe 2nd includes a pipe part 2a which at the proximal end 5 a product entry 8th and at the distal end 6 a product leak 9 provides.

The inside of the pipe part 2a represents the filling channel 7 to disposal. In the exemplary embodiment is the filling channel 7 essentially cylindrical. But it is also possible that the filling channel 7 is elliptical or oval or has a different cross-sectional shape.

At the distal end 6 is a front cap 18th attached, which is screwed in the embodiment. Assembly and disassembly are aids for assembly and disassembly 19th on the front cap 18th trained that can be gripped with a tool to unscrew or unscrew the front cap 18th to facilitate. The front cap 18th is forward to the distal end 16 tapered or beveled, so that valve bags are easier and / or more reliably attached 3rd is made possible.

In a middle area is between the distal end 6 and the proximal end 5 a pressure cuff 23 provided that after attaching a valve bag 3rd is inflated to the valve bag 3rd with its bag valve reliably on the valve bag filling pipe 2nd to fix and seal.

A sack depth stop 16 can be designed to be adaptable to different types of valve bags. In any case, the bag depth stop serves to reproducibly attach valve bags 3rd ensure.

Before the bag depth stop 16 is between the sack depth stop 16 and the pressure cuff 23 here is a test opening 25th trained here with an air outlet 34 is connected for test air. Before the start of a filling process, test air is sent from the packaging machine towards the test opening 25th blown with an existing valve bag 3rd is blocked so that a local overpressure arises, which is detected and indicates an existing valve bag. If no valve bag is attached, the blown-out air escapes through the air outlet 34 of the valve bag filling pipe 2nd on the side and no local overpressure can be detected, so that the filling process is not carried out. The system also works the other way round by means of suction and detection of a negative pressure.

Near the proximal end 5 is between the proximal end 5 and the bag depth stop 16 the suction connection 27 provided, which is connected to the dedusting and via the air via the suction channel from the inside of the valve bag 3rd is suctioned off. Between the suction connection 27 and the suction opening 11 is the suction channel 10th educated. The suction opening 11 shows a considerable distance here 20th from the product leakage 9 on. The distance 20th is a minimum of at least 1/5 and in particular at least 1/4 of a clear inner diameter of the filling channel 7 at the product outlet 9 .

Because of the considerable distance 20th it ensures that the suction opening 11 not the incoming bulk goods 4th from inside the valve bag 3rd sucks. By the distance 20th it is ensured that the excess air is sucked out of a calming area that only contains a small proportion of bulk material.

In a lower area 14 especially below the lowest point of the filling channel 7 has the suction opening 11 in a lower area or section 12th the largest cross section.

3rd shows a slightly perspective view essentially from the front of the distal end 6 of the valve bag filling pipe 2nd . The essentially cylindrical tubular part 2a is with the filling channel formed therein 7 clearly visible. Below the pipe part 2a is the largest cross section of the suction opening 11 of the suction channel 10th to see. The suction opening 11 and in particular also at least a considerable longitudinal section of the suction channel 10th preferably extend essentially in a horseshoe shape around the filling channel 7 or around the pipe part 2a around.

At the proximal end 5 of the valve bag filling pipe 2nd is the mounting flange 17th easy to see here with a screw opening. Close to the proximal end 5 is the compressed air connection 24th to the pressure cuff 23 inflate and a valve bag 3rd on the valve bag filling pipe 2nd to fix.

The sack depth stop 16 with one of his mounting screws 26 is in 3rd also shown.

4th shows a cross section through the valve bag filling tube 2nd as a packaging system component 1 . It can be seen that at the proximal end 5 the product entry 8th and at the distal end 6 the product leak 9 are arranged. At the distal end 6 is the front cap 18th screwed on.

Below the pipe part 2a is the largest cross section of the suction opening 11 of the suction channel 10th to recognize. The suction channel 10th extends over a length here 13 that apart from the distance 20th and a thickness of the mounting flange 17th the length 21 of the valve bag filling pipe 2nd can correspond. But it is also possible to use the suction channel 10th to be shorter. The extraction channel will be regular 10th but from the suction opening 11 to behind the sack depth stop 16 extend and is usually significantly longer than an outer diameter 28 of the valve bag filling pipe 2nd at the distal end 6 .

Inside the filling channel 7 here is the blow-out opening 15 shown with a compressed air connection 24th connected is. Via the blow-out opening 15 can in the fill channel 7 deposited bulk goods 4th at the end of the filling process in the valve bag still attached 3rd be blown out. This increases the weight accuracy.

During the filling process, a valve bag 3rd via the rubber sleeve or pressure sleeve 23 on the valve bag filling pipe 2nd secured. For this purpose, compressed air becomes the support body via channels not shown here 29 headed. This causes the inside to expand and the pressure cuff 23 made of an elastic material such as rubber or the like lies from the inside on the bag valve of a valve bag 3rd at. The support body 29 reduces the volume inside the pressure cuff so that the amount of compressed air required is significantly reduced.

In 4th is the test opening 25th and the subsequent air outlet for the test air 34 recognizable in the cut.

A valve bag to be attached 3rd is through the bag depth stop 16 defined on the valve bag filling pipe 2nd held.

A baffle 35 can in front of the suction opening 11 be arranged to the direct suction of bulk material 4th to prevent. A baffle 35 can between the front product outlet 9 and the suction opening 11 to be appropriate. A guide plate preferably extends 35 obliquely down from the distal end 6 path. The baffle 35 improves the effect of suction. Such a baffle 35 is optional and may - but need not - be present.

The filling channel 7 is preferably cylindrical here and has an inner clear diameter 22 which is preferably greater than a distance 20th between the suction opening 11 and the product leak 9 . In particular, the distance is 20th at least 1/4 and preferably at least 1/3 and in particular more than 1/2 of the clear inner diameter of the filling channel 7 .

The distance of the suction opening is preferably 11 of the product outlet> 5 mm and preferably larger than 1 cm and can be 1.5 cm or 2 cm or more. As a rule, the value increases proportionally with the filling pipe pressure and thus with the bag size due to the given geometry. The suction opening is particularly preferably further away from the distal end than the product outlet.

With an outer diameter of the valve bag filling tube of z. B. about 50 mm is a distance 20th of more than 5 mm and in particular more than 10 mm and preferably more than 15 mm is preferred. In a concrete example it is the outside diameter 28 of about 50 mm at 17 mm. With larger outer diameters 28 The distance from valve bag filling pipes is then preferably proportionally larger and can be values of 70 mm and more. The distance is preferably 20th smaller than the outside diameter 28 of the valve bag filling pipe.

Overall, the invention provides an advantageous valve bag filling tube and also an advantageous packaging machine and an improved packaging system, which enables effective filling, in particular also of light bulk goods, in valve bags. Due to the considerable distance in the longitudinal direction of the valve bag filling pipe between the suction opening and the product outlet, a "short circuit" during filling is avoided. The suction opening sucks out excess air from the calmed area, which only contains a small amount of dust. Continuous operation can be ensured by not using a filter. It is considerably more effective to carry out the dedusting centrally for all valve bag filling pipes than to provide a filter on each individual valve bag filling pipe, which clogs accordingly quickly. Central dedusting, on the other hand, can provide calming sections on which the bulk of the bulk material extracted with the dedusting air can initially settle without the use of a filter. As a result, air filtering is only required at the end of dedusting.

The valve bag filling pipe according to the application functions reliably and effectively in the long term.

Reference list

1

Packing system component

2nd

Valve bag filling pipe

2a

Pipe part

3rd

Valve bag

4th

Bulk goods

5

proximal end

6

distal end

7

Filling channel

8th

Product entry

9

Product leakage

10th

Suction channel

11

Suction opening

12th

Section of 10th

13

Longitudinal section of 10th

14

lower area

15

Discharge opening

16

Sack depth stop

17th

Mounting flange

18th

Front cap

19th

Disassembly aid

20th

distance

21

length of 2nd

22

diameter of 7

23

Pressure cuff

24th

Compressed air connection

25th

Test opening

26

screw

27

Suction connection

28

Outside diameter of 2nd

29

Support body

30th

Sack chair

31

Press jaw

31a

Press jaw

32b

Press jaw

32

Filling pot

33

Funding body

34

Air outlet for test air

35

Baffle

40

Machine body

41

Direction of rotation

50

Packing machine

60

Discharge conveyor

70

Badge

100

Packing system

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 3703714 A1 [0005]
• DE 102006057176 A1 [0006]

Claims (16)

Packing system component (1) with at least one valve bag filling tube (2) for filling valve bags (3), in particular with bulk materials (4), the valve bag filling tube (2) extending between a proximal end (5) and a distal end (6) and at least one Filling channel (7) with a product inlet (8) and a product outlet (9) and wherein the valve bag filling pipe (2) comprises at least one suction channel (10) in order to extract excess air from a valve bag (2) attached to the valve bag filling pipe (2), characterized in that there is a distance (20) between the product outlet (9) of the filling channel (7) and a suction opening (11) of the suction channel (10), which is greater than one fifth of a clear inner diameter of the filling channel (7). Packing plant component (1) after Claim 1 , The product outlet (9) being arranged closer to the distal end (6) of the valve bag filling tube (2) than the suction opening (11) of the suction channel (10). Packing system component (1) according to one of the preceding claims, wherein the suction channel (10) extends over at least one longitudinal section (13) approximately horseshoe-shaped or sickle-shaped around the filling channel (7). Packing system component (1) according to one of the preceding claims, wherein the suction opening (11) of the suction channel (10) extends approximately horseshoe-shaped around the filling channel (7). Packing system component (1) according to one of the preceding claims, wherein the suction channel (10) in the assembled state has a larger cross section in a lower region (14) than in an upper region. Packing system component (1) according to one of the preceding claims, wherein the filling channel (10) is arranged off-center in the valve bag filling tube (2). Packing plant component (1) according to one of the preceding claims, wherein a blow-out opening (15) is arranged in the filling channel (7) in order to blow out bulk material (4) located in the filling channel (7) at the end of a filling process. Packing plant component (1) according to one of the preceding claims, wherein at least one bag depth stop (16) is attached to the outside of the valve bag filling tube (2). Packing system component (1) according to one of the preceding claims, a mounting flange (17) being attached to the proximal end (5) and a front cap (18) being attached to the distal end (6). Packing system component (1) according to one of the preceding claims, the front cap (18) being removably mounted and / or equipped with at least one removal aid (19) and / or bevelled or conical at the distal end (6). Packing system component (1) according to one of the preceding claims, wherein the valve bag filling tube (2) is elongated and has a length (21) which is greater than three times an inner clear diameter (22) of the filling channel (7). Packing system component (1) according to one of the preceding claims, wherein a baffle (35) is arranged between the product outlet and the suction opening. Packing system component (1) according to one of the preceding claims, wherein the valve bag filling tube (2) has a pressure sleeve (23) for fixing an attached valve bag (3), a compressed air connection (24) for inflating the pressure sleeve (23) and a test opening (25) for one Bag tester includes. Packing system component (1) according to one of the preceding claims, wherein lateral pressing jaws (31) are included in order to act from the side during the filling process on a valve bag (3) hanging on the valve bag filling tube (2). Packing system component (1) according to one of the preceding claims, wherein at least one filling pot (32) and a conveying member (33) and / or at least one sack chair (30) is included. Packing system component (1) according to the preceding claim, comprising a plurality of conveying members (32) and valve bag filling pipes (2) which are attached to a rotatable machine body (40) in order to rotate a plurality of valve bags (40) when the machine body (40) is rotated. 2) to be filled with bulk material (4).

Images