EP3197784A1

EP3197784A1 - Device and method for packaging flowable materials

Info

Publication number: EP3197784A1
Application number: EP15781303.1A
Authority: EP
Inventors: Willi Vollenkemper; Christian Westarp
Original assignee: Haver and Boecker OHG
Current assignee: Haver and Boecker OHG
Priority date: 2014-09-24
Filing date: 2015-09-24
Publication date: 2017-08-02
Anticipated expiration: 2035-09-24
Also published as: CN106715272A; ES2703765T3; CN106715272B; BR112017005722B1; US10589881B2; WO2016046312A1; CA2960560C; US20170291727A1; EP3197784B1; DE102014113864A1; BR112017005722A2; CA2960560A1

Abstract

The invention relates to a device (1) and to a method for packaging flowable materials such as fluids and bulk goods (4) into flexible empty open bags (3), said device comprising a stationary part (5) and a movable part (6). A plurality of filling stations (11-18) that can be moved along with the movable part is provided on the movable part (6). A retaining apparatus (20) is fastened to the movable part (6) at each filling station (11-18). A plurality of handling stations (41-48) is provided on the stationary part (5) in a distributed manner. One handling station (41) is designed as an acceptance station for accepting empty open bags (3) and one handling station (42) is designed for filling a bag (3). A weighing unit (7) is provided on one handling station (44). A bag-accommodating unit (10) for accommodating a bag (3) is fastened to each retaining apparatus (20), wherein the bag-accommodating unit (10) is designed to accommodate and guide the bag (3). At the handling station (44) equipped with a weighing unit (7), the bag-accommodating unit (10) can be temporarily decoupled from the retaining apparatus (20) with regard to forces in order to enable separate weighing of the bag-accommodating unit (10) with the bag (3).

Description

Apparatus and method for filling flowable

materials

Besehreibung

The present invention relates to an apparatus and a method for filling flowable materials such as fluids and bulk materials into empty open sacks. In this case, the

Packing machine on a fixed part several

Treatment stations and on a moving part on several movable filling spaces.

With the invention, in particular bulk goods in flexible empty open bags, so-called open sacks, filled. The

Invention is particularly suitable for filling bulk materials such as cement, high-quality grout, other building materials or the like in open bags, where appropriate, different bag sizes can be processed so as to be able to fill filling weights between about 1 kg and 10 kg. Also conceivable are larger and smaller filling weights. Such open sacks can also be referred to as bags or small bags.

Various devices have become known in the art for filling flowable materials into open sacks. During filling, the open sacks are usually grasped at the open-top edge and held there during the filling in order to ensure a defined handling of the sacks. As a result, the film consumption can be reduced, since the bags made of a tubular film or produced from a flat film need not be made longer than is necessary for the filling. A disadvantage of such methods is that the effort for holding and guiding the open sacks and for filling is relatively large. If filling weights of only 1 kg or 5 kg or 10 kg are filled, then the relative expense increases considerably again due to the low filling weight.

In contrast to the filling of bulk goods or

Liquids in open bags or pouches do not have to be so much of a burden when filling such materials into containers with fixed sidewalls, since open-topped containers with fixed sidewalls always assume a precisely defined position and position. Therefore, open-topped containers such. As buckets or boxes or z. B. prefabricated rigid paper bags with solid walls on conveyor belts or the like

be positioned and thus spent to the filling stations, where from above the material to be filled is introduced. In the filling of flowable materials in flexible open bags that is not so easy because due to the flexible bag material made of plastic when transported on a

Conveyor belt no defined filling opening is available or can be guaranteed.

It is therefore the object of the present invention to provide a

To provide apparatus and a method available, making it possible with less effort to fill open-topped bags reliably.

This object is achieved by a device with the

Features of claim 1 and by a method with the

Features of claim 17. Preferred developments of

Invention are the subject of the dependent claims. Further advantages and features of the present invention will become apparent from the general description and the description of the

Embodiment.

A device according to the invention is used for filling flowable materials such as fluids and bulk materials in empty open sacks. In this case, the device has a fixed part and a movable part. On the moving part are several mitbewegliche filling places provided. At each filling station a holding device is attached to the movable part. At the fixed part several treatment stations are provided distributed. At least one treatment station is as

Transfer station trained to take empty open bags. At least one treatment station is used to at least partially fill an open bag and at least one particular other treatment station, a weighing unit is provided. It is at each holder device a

Bag receiving unit attached to receive a bag. The bag receiving unit is adapted to receive and guide the bag. The bag receiving unit is at the equipped with a weighing unit treatment station of the

Holding device at least temporarily in terms of power

decoupled to allow separate weighing of the bag receiving unit with the open bag.

The device according to the invention has many advantages. One

considerable advantage of the device according to the invention results from the fact that a to be filled and still empty open bag is added to a bag receiving unit at the transfer station. Following this, the bag receiving unit with the moving part is moved to the other treatment stations where the open bag is filled. In order to enable accurate filling, the bag receiving unit can be decoupled from the holding device in terms of its power at the processing station equipped with a weighing unit, so that accurate weighing of the bag receiving unit with the bag and the bag filled therein

Material is made possible.

In preferred embodiments, the device includes

Füllkarussell as a movable part on which distributed over the circumference, the various treatment stations are preferably arranged in each case stationary. The various treatment stations may be attached in their entirety to a fixed part such as a base frame or the like, or may be separately fixed to the ground respectively. In particular, that is

Carousel rotatable executed. The filling carousel turns preferably during operation stepwise or clocked. The

Device is particularly preferred and suitable

designed to load bulk materials into empty open sacks.

A bag receiving unit is designed in particular as a receiving box. The bag receiving unit receives an open bag to be filled and guides the open bag during movement of the movable part. Preferably, after weighing the bag-receiving unit at the treatment station equipped with a weighing unit, the bag-receiving unit is again coupled to the holding device before the holding device

is moved on. The weighing unit comprises at least one

Load cell.

The holder device can be used as a rotating arm on a

Füllkarussell be attached and represent a fastening device for attaching a bag receiving unit.

Preferably, a plurality of different treatment stations is provided. In addition to a transfer station for taking over an open bag to be filled, preferably at least one treatment station with a filling in the coarse flow and at least one treatment station is provided in which a filling takes place in the fine flow. Especially preferred are others

Treatment stations used for compaction. It is possible and preferred for the treatment station to be filled in

Fine stream also serves as a weighing station. Then, during the filling in the fine flow with the weighing unit, the weight can be determined so that a weight-accurate filling is made possible. Between the treatment station for filling in the coarse flow and the treatment station for filling in the fine flow is

Preferably, at least one compression station provided to vent and compress bottled bulk material whose volume enriched with air would otherwise be too large for the complete filling in one step into the container.

In all embodiments, it is preferred that the

Receiving box or the bag receiving unit formed like a tube is and has at least one upper open end. Through the open-top end of the bag receiving unit can be fed to be filled an open bag.

In all embodiments, it is preferred that on the

fixed part below the bag receiving unit a

Basic platform is arranged. Particularly preferably, the base platform extends below at least a substantial part of the movement path of the bag receiving unit.

Preferably, the bag receiving unit is exchangeable and / or it is the base platform height adjustable. For example, bag receiving units of different heights can be provided on the movable part in order to make the filling

to allow different filling weights. In appropriate adaptation, the base platform is adjusted in height.

Particularly preferably, the bag receiving unit is designed to be open at the bottom, so that the open bag can be at least partially supported by means of the basic platform. Such

Embodiment is very advantageous because the bag receiving unit is for holding and guiding a picked up open bag while the base platform provided under the bag picking unit receives and discharges the substantial part of the weight of the open bag. By means of the bag receiving unit, a defined and reproducible guidance of the open sacks can be ensured, so that the handling, in particular when filling small quantities, is considerably facilitated.

In preferred embodiments is disclosed in the below

trained bag receiving unit a bottom plate inserted, which is supported at least at the transfer station on the base platform. The bottom plate is exposed to a movement of the movable part of a relative movement to the base platform. In such embodiments, the bottom plate may be formed as a sliding plate or a wear plate. The open-top bag is supported by the filling and relative movement during movement of the movable part over the bottom plate on the Starting platform. As a result, a relative movement of the sack bottom to the base platform is avoided, resulting in

Dirt, scratches or damage to the bag floor could result. By using a bottom plate, the

for example, slides over the base platform of the fixed part or rolls on it, such damage or visual impairment of the open bags to be filled are reliably avoided.

Preferably, at least one locking unit is provided, with which the bag receiving unit of one with the

Retainer coupled locking position can be converted into a force-free position or Entkoppelungsposition. In this case, the at least one locking unit is preferably on the

Holder device provided and in particular attached thereto. Particularly preferably, each holder device respectively

at least one locking device on to each

Holder device to allow a targeted coupling and decoupling of the associated bag receiving unit.

In a transfer of a bag receiving unit of the

coupled bagging position in a decoupling position, the bag receiving unit is preferably lowered so far that the bag receiving unit is deductible on the underlying platform or scale platform.

The weighing platform is assigned to the weighing unit, so that the weighing unit can be used to record the weight of the weighing platform including a bag receiving unit parked thereon.

Preferably, the locking unit has a height-adjustable clamping cone, which is intended to act together with a retaining tab on the bag receiving unit. For example, the retaining tab may have a locking opening, in which engages the clamping cone. Due to the conical shape of the clamping cone, an automatic centering takes place during the transfer to the locking position. Preferably, the bag receiving unit is raised in the locking position and the bag receiving unit can be lowered into the force-free decoupling position on a scale platform. The balance platform is preferably mechanically from the

Basic platform separated. Preferably, the

Scales platform with its top edge at the same height as the top edge of the base platform. Particularly preferably, a narrow gap is provided between the scale platform and the base platform, over which the base plate slides during the relative movement. The dimensions of the scale platform are chosen so that a bag receiving unit can be found on it completely. The scale platform preferably has a surface which is smaller than twice the base area and

in particular smaller than 1.5 times the footprint of a bag receiving unit.

In preferred embodiments, at least one bag receiving unit and in particular each bag receiving unit is equipped with a recognition unit which comprises a unique identifier. Particularly preferred electronic detection units are used, such as RFID. About such

Techniques can be a sensor on the fixed part of the

uniquely identify each bag-receiving unit. If a first test run or a reference run is carried out without filling, the tare weight of the bag-receiving units can be determined as a whole or individually on a complete cycle, so that a more accurate filling is made possible. About a change in weight of the tare weight can also be a pollution or other

weight-effective change of the bag receiving unit are detected and optionally issued a warning signal.

Anyway, via a detection unit at the

Bag receiving unit of the type and thus the respective shape and size of the bag receiving unit can be detected. Furthermore, a control device can unambiguously deduce whether or not the suitable bag receiving units are attached for filling the intended product and the intended quantity. If Inadmissible combinations can be detected, the further

Processing stopped or a warning signal is issued.

Likewise, via such a recognition, the device

be automatically moved to the appropriate position.

In preferred embodiments, the treatment station equipped with the weighing unit is assigned a filling tube.

In particular, the filling tube at the treatment station equipped with the weighing unit serves for the filling in the fine flow. This treatment station can be referred to collectively as a weighing station or as a fine flow filling station.

In preferred developments is at least one more

Treatment station provided, which is also associated with a filling tube. Such a treatment station usually has no weighing unit. In particular, a filling in coarse flow takes place at such a treatment station. For example, there may be a timed filling in the coarse stream, in which for a fixed predetermined and variable period of z. B. 1 second, 1.5 seconds, 2 seconds, 3 seconds or the like, a filling of the material to be filled takes place through the filling tube. Furthermore, the product previously filled in the coarse flow is then determined at the weighing station, so that at the weighing station the filling in the fine flow up to the desired final weight

can be made. Depending on the determined final weight in the case of coarse-flow filling, the time duration for subsequent fillings in the coarse flow can be correspondingly reduced or increased in order to compensate for fluctuations in the product to be filled.

In all embodiments, it is particularly preferred that at least one of the treatment stations is designed as a compression station. Possible and preferred is the use of multiple compression stations. In particular, at least one

Compacting station between the treatment station for filling in coarse flow and the treatment station with the filling in the fine flow used. By a compression of the filled bulk material after filling in the coarse flow is a reduction of the Material level reached. As a result, the necessary for filling a certain amount of bag volume can be reduced, whereby costs for the bag material can be saved.

In all embodiments, it is preferred that the bag receiving unit has a plurality of suction openings, so that the wall of the bag is applied to the receiving space. When the wall of the bag abuts against the receiving space of the bag receiving unit, a reliable and reproducible bag shape and filling opening of the open bag can be ensured. This avoids errors and increases reproducibility.

Through the suction holes in the recording of one

filling open sacks in the receiving space creates a negative pressure, which is responsible for a suction of the open bag in the

Bag receiving unit and for a positive attachment of the

Sack wall ensures the receiving space. The suction can be maintained during treatment at the individual treatment stations. It is possible and preferred that the suction at the weighing station or weighing station is stopped or reduced when the bag receiving unit is transferred to the decoupling position.

In all embodiments, it is preferred that the movable part is moved clocked.

The inventive method is used for filling

flowable materials such as fluids and bulk materials in empty open sacks. The filling takes place with a device having a fixed part and a movable part, wherein on the movable part a plurality of movable filling spaces are provided and wherein at each filling a holder means is fixed to the movable part. On the fixed part distributed treatment stations are provided, wherein

at least one treatment station takes over empty open bags in succession as a transfer station, and at least one treatment station at least partially fills the bags. At at least one other treatment station, a weighing unit is provided. At each holder device, a bag receiving unit for receiving a bag is attached. The bag receiving unit picks up the open bag at the transfer station and guides the bag. The bag-receiving units are moved with the moving part successively to the treatment stations. At the treatment station equipped with a weighing unit, the corresponding bag receiving unit is temporarily decoupled in terms of its forces at the respectively present holding device in order to carry out a separate weighing of the bag receiving unit with the open bag.

The method according to the invention also has many advantages, as it provides a simple and effective filling of flowable materials and in particular of bulk materials in empty open sacks

allows.

Further advantages and features of the present invention will become apparent from the embodiment, which will be explained below with reference to the accompanying figures.

In the figures show:

Fig. 1 is a perspective view of an inventive

Contraption;

Fig. 2 is a sectional plan view of the device according to

Fig. 1;

Fig. 3 is an enlarged perspective view of the device of Fig. 1;

4 shows a further enlarged perspective detail view of the device according to FIG. 1;

Fig. 5 is a horizontal section through the device of FIG.

1; Fig. 6 is an enlarged cross section;

Fig. 7 is a horizontal view of a part of a view

Fig. 1; and

8 is an enlarged view of the bag receiving unit in the decoupling position.

With reference to Figures 1 and 2, the basic structure of a filling machine 1 according to the invention is formed

Device 1 explained. FIG. 1 shows a perspective view

Overall view of a device 1 for filling bulk materials and fluids into flexible open-topped bags 3. The bags 3 processed on the device 1 shown in FIG. 1 are made of a flexible material and in particular of plastic material. The device comprises a filling carousel 2, a bag source 70 and an intermediate silo 80 for intermediate buffering of the bulk material to be filled.

In this embodiment, at the bag source 70 is a

Film roll 71 is provided, on which a film web 72 is wound. The unwound from the film roll 71 film web 72 is fed to a forming shoulder 73. There, the film web 72 is made of plastic film around the shoulder and it is welded a longitudinal seam, so that a continuous

Foil tube is created.

At the transfer station 60, the bag bottom is made in the appropriate welds transverse to the longitudinal extent of

Tube film are introduced. The tube film held in the appropriate cross-section is conveyed further and into the

Receiving box 62 of the transfer station 60 brought. There, the open bag 3 to be filled is received in a form-fitting manner. For the supply, the tubular film is cut to fit, so that the open-top end of the open bag 3 is made.

It is also possible to produce the open-topped bags from an already prefabricated and z. B. extruded film tube or also the supply of completely prefabricated flexible bags or bags from a magazine or the like.

In Figure 1, the pivot position 63 of the transfer station 60 is shown, while in Figure 2, the pivot position 64 is shown, at which the open to be filled bag 3 is transferred to the treatment station 41 as a transfer station, where to be filled open bag 3 to the filling station 12th is transferred, as Figure 2 shows.

As can be seen in Figures 1 and 2, the device 1 comprises a base frame to which the filling carousel 2 and the other components are attached. The fixed part 5 of the device 1 has a base platform 55. The base platform 55 extends below the trajectory of the bag receiving units 30, which are arranged at the filling stations 11 to 18.

At the filling stations 11 to 18, a holding device 20 is attached to the movable part 6 respectively. Each holding device 20 in turn supports a bag receiving unit 10, at which the bags to be filled are held, held and guided.

The filling carousel 2 is operated clocked here, so that the individual filling stations 11 to 18 and the recorded thereon

Bag receiving units 10 consecutively to the individual

Treatment stations 41 to 48 are transported.

At the transfer station as a treatment station 41 takes over the acquisition of an open bag 3 to be filled by a

FIG. 2 shows the takeover of the open bag 3 to be filled by the bag receiving unit 10 at the filling station 11. The filling carousel 2 is operated in a clocked manner so that the open bag 3 just handed over is located at the treatment station 42 after a cycle a filling is provided in the coarse stream. As can be seen in FIG. 1, the treatment station 42 is assigned a filling turbine 82 and an actuating unit 83 as well as a filling tube 86. The filling tube 86 dips into a dust hood 87. During the filling process, the dust hood 87 is lowered into the bag receiving unit 10. In this case, a tubular part extends in

Inner of the cover 87 telescopically around the filling tube 86 around, so that practically an extension of the filling tube 86 is downwards. As a result, the drop height of the bulk material is reduced in the open bag to be filled, so that less dust occurs, which must be removed in order to avoid contamination of the device 1. There will also be an additional

Enrichment of the contents with air prevented by an unnecessarily high drop height. At this filling place z. B. be compacted via a Bodenrüttler during the filling process.

After further indexing of the movable part 6, the bag to be filled is brought to a compression station 43, where the previously filled material is vented and compacted. At the next stroke, the flexible open bag 3 reaches the

Treatment station 44th There is also a

Charging turbine 82, which is driven by a motor 81. Via a filling tube 86, the bulk material to be filled is supplied in fine flow to the open bag 3. Again, a cover 87 is provided, which dips into the bag receiving unit 10 from above, to the drop height of the bulk material and thus the

Dust content and reduce the aerial photo.

Both at the treatment station 42 and at the

Treatment station 44 are provided here in the respective filling tubes 86 actuators 83, which allow a Vorjustage the open cross section of the filling tubes 86. This will be

For example, when filling different materials or the same materials with different properties of the filling cross-section in the coarse flow and the filling cross-section in the fine flow pre-adjusted to achieve optimum filling properties. After filling the fine flow at the treatment station 44, three further treatment stations 45, 46 and 47 follow, at which a compression of the filled material takes place. At the treatment station 48 is the filled open bag

removed. The treatment stations 45, 46 and 47 may be formed as a common compression station.

Each bag receiving unit 10 designed as a receiving box 30 has a recognition unit 54 which responds to optical, magnetic or electronic interrogation and, in particular, returns a clear signal. In simple cases, a kind of bar code may be provided. Preferably, the use of RFID (radio-frequency identification) for non-contact detection of the associated bag receiving unit 10. Thus, the respective bag receiving unit 10 can be clearly identified and assigned. This is important, for example, when a product change or a size change of the bags to be filled takes place in order to ensure that the appropriate bag receiving units 10 are mounted on the filling carousel 2. This allows other format-dependent machine settings to be made.

For filling different amounts differently configured receiving boxes 30 may be provided. The

Here, treatment stations are oriented here at the upper ends of the receiving boxes 30, so that when receiving boxes 30 of different heights, care is taken that they are arranged at their upper end 32 (see FIG. To make a length compensation, therefore, the underlying platform 55 is moved in height accordingly.

Overall, the filling carousel 2 is rotatably mounted about the axis of rotation 8. At the treatment station 41 takes place in the

Pivot position 64 of the pivot arm 61 a transfer of an open bag to be filled 3 to (here) the filling 11. The pivot arm 61 forms with the coupling rod 65 a parallelogram-like

Pivoting device for the receiving box 62, the from

basic structure of the receiving boxes 30 equals. Each holder 20 here has two retaining arms 21 and 22, which protect against dust and dirt by a

Cover 25 are covered at the top.

For height adjustment of the basic platform 55 and the separate

Balance platform 56, the height adjustments 85 are provided.

Individual elements of the height adjustment can drive

while other elements of the height adjustment serve only for guidance.

The scale platform 56 is mechanically decoupled from the base platform 55, but is simultaneously adjusted in height with the base platform in the same manner. The scale platform is associated with a weighing unit 7, not visible in FIGS. 1 and 2, with which the weight of the scale platform 56, as well as a receiving box 30 resting on it, including one therein

contained open sacks 3 and 4 of the filled bulk material is measurable. By deduction of the known weights for the receiving box 30, the weight of the bag material 3 and the scale platform 56 is calculated back to the weight of the filled bulk material 4 in the gross method.

Should be in the course of time additional bulk or

the like on the scale platform 56 or on individual

Collection boxes 30 accumulate, this can be taken into account by empty travel and capture of the tare weights. If the tare weight determined during a check deviates too much from the original tare weight, a recommendation for maintenance or cleaning can be issued.

Figure 3 shows an enlarged schematic perspective view of a part of the device 1, wherein in the left part of the

Transfer station 60 can be seen in more detail.

The pivot arm 61 and the coupling rod 65 of the transfer station 60 are here in the pivot position 64, in the one to

filling open bag 3 from the receiving box 62 to the

Receiving box 30 is passed directly below. To the

Receiving box 62 and the receiving boxes 30 are suction openings

34 (see Figure 4) provided, is sucked through the air, so that a arranged in the receiving box 62 open bag 3 positively applied to the inner wall of the receiving box 62.

After the positioning of the receiving box 62 in the

Pivoting position 64, which is shown in Figure 3, the suction on the receiving box 62 is turned off and the suction is activated on the receiving box 30 as a receiving unit 10 so that the open bag 3 is transported from the receiving box 62 down in the receiving box 30, where the bag 3 again

positively applied to the inner wall of the receiving box 30.

FIG. 3 also shows the dust hood 87 at the treatment station 44. At the upper end of the dust cover 87, a not shown here dedusting hose is connected to the

Remove dedusting air.

Each receiving box 30 has a receiving space 31, which here about the height approximately constant and rectangular here

Cross section has. Preferably, the inner walls are slightly tapered upwardly to facilitate insertion from the top and removal upwardly. A preferred angle is between 0.25 ° and 2 ° and can, for. B. 0.35 ° or 0.5 °. The dimensions of the rectangular cross-section depend on the desired dimensions of the filled open bags. The dimensions are given here by the dimensions of the receiving boxes 30 and the flexible bag material is selected accordingly or vice versa.

Apart from the treatment station 44, on which the weighing unit 7 is provided, the receiving boxes 30 are located at the other treatment stations respectively above the base platform 55.

As can be seen in FIG. 3, for the treatment stations 45-47, in each case or in total, at least one compression drive 84 in the form of z. B. an imbalance exciter or a magnetic vibrator and at least one spring 79 is provided in order to achieve an effective compression of the filled material. Even from above acting compression devices are possible.

FIG. 4 shows a further enlargement of a perspective view of the filling carousel 2 with only one receiving box 30 here a holding device 20. In the interior of the receiving box 30, the suction openings 34 can be seen. The receiving box 30 has retaining tabs 40, with which the receiving box 30 to the

Supporting arms 21 and 22 of the holder device 20 is attached. At the lower end 33 of the receiving box 30, a maintenance flap 39 can be seen, whereby the intermediate space of the double-walled trained

Receiving box 30 is accessible. If a plurality of spaced apart and separate spaces are provided, preferably correspondingly many maintenance flaps 39 are provided.

A decoupling of a receiving box 30 can be effected via a control device not shown in detail. A manual decoupling is possible via the release 26 at any time.

FIG. 4 also shows the suction channel 23 on the holder device 20, via which the air is sucked out of the suction openings 34 on the receiving box 30. Pulled above the

drawn maintenance flap 39 is still a dashed line

shown maintenance flap 39, if two

superimposed spaces are provided.

Figure 5 shows a partially sectioned side view of the device 1, wherein the axis of rotation 8 of the filling carousel 2 and the drive 19 of the filling carousel 2 can be seen.

On the base platform 55 are at the lower end of the receiving boxes 30 bottom plates 50 so that a recorded in the receiving box 30 bag 3 is supported on the top of the bottom plate 50. The underside of the bottom plate 50 is in sliding

Contact with the ground 55 platform when the fill carousel 2 is further clocked.

The bottom plate 50 is therefore a sliding plate or a wear plate, which protects the bottom of an open bag 3 to be filled from contamination and damage during the rotation or further indexing of the filling carousel 2.

The receiving box 30 can be seen in Fig. 5 in cross section.

It can be seen that here from the upper end 32 to the lower end 33 an air chamber 37 between the inner wall 35 and the outer wall 36 extends. On the inner wall 35 a plurality of suction openings 34 is arranged so that the bag wall forms a form-fitting and flat against the receiving space 31 of the receiving box 30.

The gap 37 is supplied via the suction nozzle 38 with vacuum. The suction nozzle 38 ends here with a small distance in front of the suction channel 23 which is fixed to the movable part 6. At the provided fixed angular positions of the suction channel 23 couples to the suction port 52. A sealing

Connection is provided via the sliding collar 53, which slides during the rotation of the movable part 6 over the outer surface of the here annular venting channel 9.

In the bottom plate 50 are also suction openings 34th

provided, at which preferably at the transfer station 41 air is sucked to suck a to be filled open bag 3 from above into the receiving box 30 into or to support the movement. It is also possible that instead of

Suction openings 34 in the bottom plate additional and controllable suction openings are provided in a lower region of the receiving box 30.

Dashed lines in FIGS. 5 and 6 show a variant in which a plurality of regions 31a, 31b and 31c for coupled or also separately controllable extraction are provided above the level. In a lower region 31 a additional suction openings 34 are provided here, which here with a rectangular

Cross section are shown. These suction openings 34 may also be round, oval or slot-like or otherwise formed. With such a configuration, it is possible to dispense with suction openings 34 in the floor panels partially and in particular completely.

To pass an open bag 3 to be filled to the bag receiving unit 10 and the receiving box 30, z. B. only in the upper region 31 c air over the suction openings 34 in the upper portion 31 c along the arrow be sucked off. If the bag 3 has already been sucked into the receiving box 30 to some extent, the suction in the central area 31b can be activated or intensified, while in the upper area 31c the suction is reduced and eventually completely switched off, finally in the lower Suction area 34, so that a bag 3 reaches down to the bottom.

It is possible and preferred that then from the top one

Puff down in the open bag 3 is issued, which brings the open-held bag 3 reliably and reproducibly down and positioned on the bottom plate 50 or on the base platform 55, if no bottom plate 50 should be present. The strength of over one or more air jets

output air blast can be determined experimentally.

Alternatively or in addition to an air blast, a mechanical push-in device can press the bag bottom downwards. At the same time, the suction of the suction openings 34 can be slightly reduced in order to ensure a reliable lowering of the opened bag 3 in the bag receiving unit 10.

Figure 6 shows a cross section through the receiving box 30 transverse to the cross section of Figure 5. The receiving box 30 is held on the holding means 20 via the lateral retaining tabs 40. The manual release 26 is provided laterally. In the lower area 31a is located on the base platform 55 the

Base plate 50, in the here also suction openings 34th

are provided, which are coupled to the Absaugabschluss 51 below the bottom platform 55. At the suction connection, a suction hose, not shown here, is connected.

It can be seen that in each case a plurality of suction openings 34 is arranged in the lower region 31a, in the central region 31b and in the upper region 31c. The suction in the

different area 31a to 31c can preferably be controlled separately, if the dashed lines

Dividers 35a and 35b are provided, which then divides the gap 31 into separate air chambers 37a, 37b and 37c. The control can be done via separately controllable valves. It is also possible, however, on the number and type of suction or on their cross sections or fixed flow cross sections and flow paths

provide certain Absaugprofil over the height of the receiving box 30.

Furthermore, Fig. 6 shows a possible in all versions

Embodiment of the suction openings 34 on the bottom plate 50. Here, the bottom surface of the bottom plate is formed to a large or even predominant part by an air-permeable support unit 50b, which here comprises a wire mesh or multiple wire mesh. Characterized in that the suction opening 34 is covered by the wire mesh 50b, the bag to be filled with its bottom can stand up completely on the bottom surface. Damping or deformation of the soil due to the filled weight and / or the suction can be largely or completely avoided. It is also possible, wire mesh or other elements

to be used, which support the floor surface. Additionally, in all cases, at least one separate support member may be provided under the wire mesh to support the wire mesh, as shown schematically in FIG.

FIG. 7 shows a side view of a part of the device 1, wherein the treatment station 44 is visible. At the

Treatment station 44, the weighing unit 7 is provided with which the separately formed scales platform 56 and the parts thereon can be weighed. FIG. 7 shows a state that is present just after reaching the treatment station 44. At this moment, the receiving box 30 is still on the locking unit 24 fixed to the holder device 20th

coupled so that the receiving box 30 is not here on the

Waagen platform 56 gets up, but is a little way above.

On the scale platform 56 here is the bottom plate 50 which is free to move in the vertical direction relative to the receiving box 30, but which is designed so high that the

Bottom plate 50 is taken in the rotational movement of the filling carousel 2 of the receiving box 30. This is one sliding relative movement of the underside of the bottom plate 50 and the balance platform 56 and the base platform 55 before, when the movable part 6 is further clocked. To a better one

Transfer of the bottom plate 50 of the base platform 55 on the scale platform 56 and the next clock from the

To ensure scale platform 56 on the base platform 55 is on the scale platform 56 a run-on slope 57 and it is provided on the base platform 55, a run-on slope 58.

Dashed lines drawn in Figure 7, an open bag 3, the better visibility spaced from the inner wall 35 has been drawn. Practically, the open bag 3 defines with its wall firmly against the inner wall 35 at. In the open bag 3, some bulk material 4 is shown as an example.

The basic platform 55 is height adjustable and can

For example, up to the dashed line line 89 are adjusted high or even higher to corresponding

Mount receiving boxes 30 at the treatment stations 41 to 48. After replacement, bags can be filled with correspondingly smaller volumes.

FIG. 8 shows an enlarged detail view of a receiving box 30 at the weighing station 44, wherein the receiving box 30 is shown in the decoupling position 76 lowered here. For decoupling the clamping cone 27 of the locking unit 24 is extended, so that the previously raised to the retaining tabs 40 receiving box 30 lowers and on the

Scales platform 56 stands up at the weighing station 44. By extending the lifting unit or locking unit 24, a weight-based decoupling of the receiving box 30 from the associated filling station or the associated holder device 20 is achieved. As a result, the previously bottled in the bag 3

Weight can be determined very accurately.

To facilitate the lowering of the receiving box relative to the filled bag, the connection of the

Suction duct 23 and the suction nozzle 38 are interrupted to a relative movement between the bag and the receiving box enable. Even if the receiving box does not completely lower, the receiving box rests on the balance platform 56 in frictional engagement with the bag, resulting in a precise weighing according to the gross method in the form described.

Should collect in the intermediate space 37, for example, bulk material to be filled, so if necessary, the maintenance flap 39 can be opened to empty the gap 37 and

if necessary to clean.

In Fig. 8, two recesses or grooves 50 a are shown in dashed lines on the bottom plate 50, for receiving

Holding units or lugs 30 a serve to the receiving box 30. By the elements 50a and 30a, it is ensured that the bottom plate 50 does not fall out when the receiving box 30 is picked up manually. In simple cases, the holding units or lugs 30a on the receiving box 30 by edging the

Sheet metal of the receiving box 30 generated.

The receiving box 30 can stand up on three feet 30b in all embodiments. At least one of the feet 30b can

be adjustable. Preferably, all feet 30b are adjustable.

This avoids that the receiving box 30 rests on its outer frame when the receiving box 30 at the

Scale platform 56 is lowered. Also in eventual

Manufacturing tolerances can be prevented that the

Pickup box 30 slightly skewed in any direction. Thus, it can also be prevented that receiving box 30 is based on the brackets and so the weight is distorted. By one, two or three adjustable feet 30b ensures that the receiving box 30 stands up defined and not on the circumferential rectangular frame. This allows everyone

Recording box 30 can be optimally adjusted.

It is also possible to dispense with feet 30b, so that the receiving box 30 stands up on its circumferential rectangular frame, if provided for sufficiently small tolerances.

Overall, with the invention an advantageous device and an advantageous method is provided, whereby a simple and effective transfer to be filled and still empty open bags to a filling station is made possible. The bottom of the open bag 3 is transported by gravity and supported by the suction in the receiving box 30 in it. By suction on the suction openings 34, the bag wall sets form-fitting manner to the receiving box 30, so that even before filling an ideal and desired shape of the open bag 3 results. This achieves an effective and material-saving filling. In addition, a visually appealing shape of the filled open bag 3 is ensured. In addition, a safe immersion of the dust hood 87 in the receiving box 30 and in particular even in the opened bag 3 is made possible.

The receiving boxes 30 guide the open bags 3 to be filled during transport with the movable part 6 reliably. For better weighing the receiving box 30 at the

Scales station spent in a Entkoppelungsstellung to there to determine the weight still to be filled and filled especially in the fine flow the missing part in the open bag controlled. There are several stations provided, where there is a compression of the filled material. It can be shaken both from below as well as from above one

Vacuum lance or a vibrating lance or the like in the open open bag 3 dive to an effective

Venting and thus causing compression.

LIST OF REFERENCE NUMBERS

1 filling machine 38 suction nozzle

2 Filling cord 39 Maintenance cover

3 open bag 40 holding tab

4 bulk materials 41-48 treatment station

5 fixed part 50 base plate

6 movable part 50a groove

7 weighing unit 50b wire mesh

8 rotation axis 51-52 suction connection

9 Vent channel 53 Sliding sleeve

10 bag receiving unit 54 recognition unit

11-18 filling place 55 basic platform

19 drive 56 scale platform

20 holder device 57 starting slope

21-22 Holding arm 58 Starting slope

23 Suction channel 60 Transfer station

24 locking unit 61 pivoting arm

25 cover 62 Aufnähmekästen

26 Release 63 Swivel position

27 Clamping cone 64 Swivel position

28 detector 65 coupling rod

29 stroke 66 drive

30 storage boxes 70 bag source

30a nose 71 film roll

30b foot 72 film web

31 Recording room 73 Form shoulder

31a lower portion 75 locking position

31b middle region 76 decoupling position

31c upper portion 79 spring

32 upper end 80 intermediate silo

33 lower end 81 Motor for turbine

34 Suction opening 82 Turbine

35 inner wall 83 actuating unit

35a Divider 84 Compression drive

35b divider 85 height adjustment

36 outer wall 86 filling tube

37 Air chamber 87 Dust hood

37a Air chamber 88 Hose connection

37b air chamber 89 higher position

37c air chamber

Claims

Claims :

1. Device (1) for filling flowable materials such as fluids and bulk materials (4) in flexible empty open bags

(3) with a fixed part (5) and a movable part (6), wherein on the movable part (6) more

mitbewegliche filling stations (11-18) are provided and at each filling station (11-18) a holding means (20) on the

movable part (6) is fixed, and wherein on the

fixed part (5) distributes several treatment stations

(41-48) are provided, wherein at least one

Treatment station (41) as a transfer station for taking empty open bags (3) and at least one

Treatment station (42) for at least partially filling a bag (3) is formed and wherein at least one treatment station (44) a weighing unit (7) is provided, characterized

in that a bag receiving unit (10) for receiving a bag (3) can be fastened to each holder device (20), the bag receiving unit (10) being designed to receive and guide the bag (3),

and that the bag receiving unit (10) at the with a

Weighing unit (7) equipped treatment station (44) by the holding means (20) temporarily decoupled kraftlichäßig to allow a separate weighing of the bag receiving unit (10) with the bag (3).

2. Apparatus according to claim 1, wherein the bag receiving unit (10) is tubular and has at least one upper open end (32).

3. Device according to claim 1 or 2, wherein on the

fixed part below the bag receiving unit (10) a base platform (55) is arranged.

4. Device according to one of the preceding claims, wherein the bag receiving unit (10) interchangeable and the base platform (55) is height adjustable.

5. Device according to one of the preceding claims,

the bag receiving unit (10) being open at the bottom (33)

is formed so that the open bag (3) by means of the base platform (55) can be supported.

6. Device according to one of the preceding claims,

wherein in the bottom formed open bag receiving unit (10) is a bottom plate (50) can be inserted, which is supported at least at the transfer station on the base platform (55) and which bottom plate (50) during a movement of the

movable part (6) of a relative movement to the

Base platform (55) is exposed.

7. Device according to one of the preceding claims,

wherein the bottom plate is formed as a sliding plate.

8. Device according to one of the preceding claims,

wherein a locking unit (24) is provided, with which the bag receiving unit (10) from one with the

Retaining means (20) coupled to the locking position (75) in a decoupling position (76) can be transferred.

9. Device according to one of the preceding claims,

wherein the locking unit (24) has a height-adjustable clamping cone (27) which is intended to cooperate with a retaining tab (40) on the bag receiving unit (10).

10. Device according to one of the preceding claims,

wherein the bag receiving unit (10) in the locking position (75) is raised and wherein the bag receiving unit (10) in the non-contacting decoupling position (76) on a

Balance platform (56) is lowered.

11. The device according to any one of the preceding claims, wherein the balance platform (56) from the base platform (55) is mechanically separated.

12. Device according to one of the preceding claims,

wherein each bag receiving unit (10) comprises a recognition unit (54) with a unique identifier.

13. Device according to one of the preceding claims,

wherein the treatment station (44) equipped with the weighing unit (7) is associated with a filling tube.

14. Device according to one of the preceding claims,

wherein at least one of the treatment stations (43, 45-47) is designed as a compression station.

15. Device according to one of the preceding claims,

wherein the bag receiving unit comprises a plurality of

Having suction, so that the wall of the bag is applied to the receiving space.

16. Device according to one of the preceding claims, wherein the movable part is clocked movable.

17. Method for filling flowable materials such as

Fluids and bulk materials (4) into flexible empty open sacks (3) with a device (1) having a fixed part (5) and a moving part (6), wherein on the moving part

(6) a plurality of mobile filling stations (11-18) are provided and at each filling station (11-18) a holding means (20) on the movable part (6) is fixed, and wherein on the fixed part (5) distributed more treatment stations

(41-48) are provided, wherein at least one

Treatment station (41) as a transfer station empty open bags (3) takes one after another and at least one

Treatment station (42) at least partially fills the bags (3) and at least at one treatment station (44) a weighing unit (7) is provided,

characterized,

a bag receiving unit (10) for receiving a bag (3) is fastened to each holder device (20), wherein the bag receiving unit (10) receives and guides the bag (3) at the transfer station,

and that with the movable part (6) successively the

Sack receiving units (10) to the treatment stations (41- 48) are spent, and that at the equipped with a weighing unit (7) treatment station (44) each of the existing holding device (20) the corresponding

Bag receiving unit (10) is temporarily decoupled kraftmäßig to perform a separate weighing the bag receiving unit (10) with the bag (3).

18. Method according to the preceding claim, wherein material is filled in the open bag at the treatment station (44) equipped with the weighing unit (7).