EP3621881B1 - Compacting station for compacting bulk material in open-mouth bags and method - Google Patents

Compacting station for compacting bulk material in open-mouth bags and method Download PDF

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Publication number
EP3621881B1
EP3621881B1 EP18727688.6A EP18727688A EP3621881B1 EP 3621881 B1 EP3621881 B1 EP 3621881B1 EP 18727688 A EP18727688 A EP 18727688A EP 3621881 B1 EP3621881 B1 EP 3621881B1
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EP
European Patent Office
Prior art keywords
open
container
support unit
filled
compacting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18727688.6A
Other languages
German (de)
French (fr)
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EP3621881A1 (en
Inventor
Volker SCHÜTTE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Haver and Boecker OHG
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Haver and Boecker OHG
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Publication date
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Publication of EP3621881A1 publication Critical patent/EP3621881A1/en
Application granted granted Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B1/06—Methods of, or means for, filling the material into the containers or receptacles by gravity flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/20—Reducing volume of filled material
    • B65B1/24—Reducing volume of filled material by mechanical compression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/20—Reducing volume of filled material
    • B65B1/26—Reducing volume of filled material by pneumatic means, e.g. suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
    • B65B1/36—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by volumetric devices or methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/44—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation from supply magazines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/46—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using grippers
    • B65B43/465—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using grippers for bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/50—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using rotary tables or turrets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/24—Cleaning of, or removing dust from, containers, wrappers, or packaging ; Preventing of fouling

Definitions

  • the present invention relates to a compacting station with at least one compacting device for compacting open sacks filled with bulk goods.
  • the invention is used in particular in connection with a device such as that described in US Pat WO 2016/046302 A1 have become known.
  • bags are filled, for example, with bulk materials such as cement, high-quality joint mortar or other building materials. Block-shaped bags with a high degree of compression are produced.
  • the filling weight of a filled open sack being between approximately 1 kg and 10 kg.
  • the bags can be produced directly in a device upstream of the device as part of the filling process. For this purpose, for example, a flat film is passed over a forming shoulder and the flat film is welded there to form a film tube.
  • the open bag to be filled is received in a receiving box and filled there.
  • the known device can Filling box-shaped open-top bags that are compacted during the process. At the end of the process, square open bags can be packed. The known device works satisfactorily.
  • the open sacks filled with bulk goods are picked up by many people or if the open sacks are pressed too hard (or fingered extensively with the hands), the sacks can soften and lose their exact cuboid shape.
  • a compression station comprises at least one compression device for the compression of open sacks filled with bulk goods.
  • the compression device comprises a container with a tubular inner wall and a receiving space for receiving a filled open bag.
  • a support unit is provided on a height-adjustable lifting device.
  • the support unit is adjustable in height relative to the container in particular by means of the height-adjustable lifting device. In a lowered position of the lifting device, the support unit is supported from below and, in a raised position, is suitable for taking over a filled open bag from an adjacent conveyor device.
  • a press ram that can be lowered from above is included, which in a lowered position acts on the bulk material from above and which, in a raised position, enables a filled open bag to be taken over from an adjacent conveyor device.
  • the compression station according to the invention has many advantages.
  • a considerable advantage of the compression station according to the invention is that a filled open bag is compressed within a container.
  • the shape of the container is impressed on the open bag. For example, square-shaped, filled open bags with a high degree of compression can be produced.
  • the support unit in a lowered position of the lifting device, is supported or set down on support hooks of the container and supported by them from below.
  • Other support from below is also possible.
  • the container can preferably be raised and lowered periodically by one container stroke via a compression gear.
  • a periodic raising and lowering of the container relative to the ram ensures a pounding or shaking compression of the bulk material filled into the open bag.
  • the container stroke is preferably less than a fifth and in particular less than a tenth of the length of the container.
  • the container stroke is less than 50 mm and in particular less than 20 mm and preferably less than 10 mm.
  • a stroke of 6 mm is used.
  • the stroke can be selected depending on the container size and in particular the container height and the desired degree of compression and the compressibility of the bulk material.
  • the ram is preferably driven by a pneumatic drive.
  • the pneumatic drive can comprise at least one pneumatic cylinder.
  • the compression gear is preferably driven by an electric motor.
  • the combination of a pneumatic drive and another, for example electric drive has the advantage that the Pneumatic drive can compensate for pressure surges, so that overloading is reliably prevented.
  • press ram is automatically adjusted with increasing compression (due to the pneumatics). Even with increasing compression, it is ensured that the acting force remains (practically) the same. Alternatively, it is also possible for the ram to stand still and the container to be raised and pneumatically adjusted.
  • a dedusting device is attached to the container. It is possible, for example, for the upper container opening to be at least partially surrounded by a dedusting opening.
  • dedusting gaps can be provided on one side of the container or on several sides of the container, which suction the upper area of the container and thus reliably remove a large part of any dust that may emerge.
  • an upper section of the container is conical or funnel-shaped or the like, so that it is easier to insert an open bag into the container.
  • the compression device is assigned a slide, swivel arm or the like, or the compression device has a slide with which the filled open bag can be pushed onto the support unit and / or back again laterally from, for example, the conveyor device.
  • an open bag to be compressed can be removed from the conveyor device and compressed in the compression station, while the conveyor device itself continues to run and, for example, transports a second filled open bag to a second compression device of the compression station.
  • the processing speed can be increased with a long dwell time in the compression station.
  • the slide includes suction cups in order to keep the upper bag wall open.
  • the slide preferably comprises suction cups at different heights in order to be able to keep the upper sack wall open in a targeted manner in each case of open sacks of different heights.
  • the support unit In all of the configurations it is possible for the support unit to be able to be raised using a short lifting device. This enables the support unit to be positioned slightly higher than the level of the conveyor when transferring a compressed open sack from the support unit to the conveyor, so that the already compressed open sack can be pushed off easily onto the conveyor. Conversely, the support unit can be placed slightly below the level of the conveyor device when an open bag to be compressed is transferred from the conveyor device to the support unit with the pusher.
  • the short stroke device can perform a stroke of 5 mm or 10 mm or 20 mm or an intermediate value.
  • the press ram is equipped with a suction device.
  • the compression station comprises at least 2 compression devices or 3 compression devices or more compression devices for compressing open sacks filled with bulk goods.
  • the compression devices are preferably arranged one behind the other and connected to one another via a conveyor device. This makes it possible to compress a filled open bag several times. In particular, however, it is also possible to compress a filled open bag at several compression devices at the same time, so that the processing speed increases accordingly.
  • the method according to the invention is used to compact bulk material in an open bag filled with bulk material.
  • a filled open bag is placed on a support unit.
  • the support unit with the filled open bag placed on it is lowered into a tubular receiving space of a container to such an extent that the product level is in the tubular receiving space of the container.
  • the support unit of the container then stands on support hooks or is supported from below.
  • a press ram dips into the open end of the open bag from above, at the same time or preferably beforehand, and acts on the bulk material from above, while the support unit (supported by the support hooks) presses against the bottom of the sack from below.
  • the lifting device moves in particular down and separates z. B. from the support unit when the support unit strikes the support hook.
  • the method according to the invention allows an advantageous compression of bulk goods in open sacks, whereby a parallelization to increase the performance of the overall system or a higher degree of compression of the overall system is made possible for a given overall output.
  • Figure 1 shows the basic structure of a filling machine 1. It shows Figure 1 a perspective overall view of the filling machine 1 for filling bulk goods (and possibly fluids) in flexible and open-top bags 3.
  • the bags 3 to be processed consist of a flexible material and in particular of a plastic material.
  • the filling machine 1 comprises a filling carousel 2, a sack source 70 and an intermediate silo 80 for intermediate buffering of the bulk material to be filled.
  • a film roll 71, onto which a film web 72 is wound, is provided here as the sack source 70.
  • the film web 72 unwound from the film roll 71 is fed to a forming shoulder 73.
  • the film web 72 made of plastic film is guided around the shoulder and a longitudinal seam is welded so that a continuous film tube is created.
  • the bottom of the bag is produced at the transfer station 60, in which suitable weld seams are introduced transversely to the longitudinal extension of the tubular film.
  • the tubular film held in the appropriate cross-section is conveyed further and brought into the receiving box 62 of the transfer station 60.
  • There the open sack 3 to be filled is received in a form-fitting manner.
  • the tubular film is cut to fit so that the open-topped end of the open sack is produced.
  • the open-topped sacks from an already prefabricated and, for example, extruded film tube, or also to supply completely prefabricated flexible sacks or bags from a magazine or the like.
  • the device or filling machine 1 has a base frame to which the filling carousel 2 and the other components are attached. Part 5 of the device is designed to be stationary, while part 6 rotates during operation. Various treatment stations are provided at the individual filling stations, with the filling being carried out in the coarse flow at one treatment station and the filling in the fine flow at a further treatment station 41. The filled bulk material is compacted at further treatment stations.
  • the filling carousel 2 is operated clocked here.
  • the required bulk material is fed from the intermediate silo 80.
  • a compression station 100 can be connected downstream, as shown in FIG Figure 2 is shown.
  • the compaction station 100 off Figure 2 here comprises five different compression devices 101, which are here arranged in series.
  • Each compression device 101 comprises a pressing device 123, each of which has a pneumatic drive 124 in the form of a pneumatic cylinder.
  • a ram 120 can be raised or lowered by means of a lifting and lowering unit 126. In the lowered position, pressure is then exerted on the bulk material via the pneumatic cylinder 124.
  • the filled open sacks 3 are conveyed via the conveying device 106, which is preferably designed as a conveyor belt. If compression is to take place on one of the compression devices 101, the damming flap 108 is retracted or swiveled in in order to position the open bag in a defined manner in the conveying direction and the corresponding slide 105 is activated at the appropriate moment. Thus, an open bag 3 to be compressed is withdrawn from the conveyor device 106 and introduced into a container 110. Dedusting lines 130 are provided to remove dust during compression. With the lifting device 102 an in Figure 2 non-visible support unit 231 can be adjusted in height.
  • Figure 3 shows a schematic cross section through the compression station according to FIG Figure 2 .
  • the pressing device 123 with the pneumatic cylinder 124 can be seen, to which a linkage and then the press ram 120 coupled to it are connected at the bottom.
  • the actual pressing surface of the press ram 120 can be equipped with a suction device 125 in order to effect an effective ventilation.
  • the suction device 125 can effectively suck air out of the bulk material.
  • the slide 105 is here in the position above the container 110, which the slide has reached after an open bag 3 to be compressed has been transferred from the conveying device 106 to a support unit 131.
  • the open sack 3 is shown here in dashed lines, as is a press ram 120 which is immersed in the open sack and which is shown in broken lines in the lowered position 121.
  • the open bag 3 rests on the support unit 231, which is detachably coupled to the layer composite 203 via magnets 232.
  • the support unit 231 rests on hooks 116 at the lower end of the container 110.
  • the support unit 231 is decoupled from the lifting device 102, since forces in the vertical direction are diverted from above onto the bulk material or the open bag directly via the hooks 116 and the container 110.
  • the magnetic connection between the support unit 231 and the layer composite 203 prevents the support unit 231 from tilting in the tubular inner wall 111 when it is lowered.
  • individual fluid outlet openings such. B. to exit at an oblique angle in the upper cover plate or end plate in order to clean them from particles deposited thereon.
  • the layer composite can consist of individual (and prior to assembly or production) separate panels that form a one-piece or multi-part panel composite. It is also possible and preferred, however, that at least a part of the layer composite or the entire layer composite is designed in one piece and z. B. is produced in an additive manufacturing process and / or as a 3D printing. The entire layer composite can then also be manufactured in one manufacturing step. It can guide channels or fluid passages z. B. be made by omitting material.
  • the container 110 has a tubular receiving space with a tubular inner wall 111.
  • the cross-section here is rectangular, so that cuboid open bags are created.
  • the upper section 115 of the container 110 is slightly conical in order to facilitate the introduction of an open bag to be compressed.
  • FIG. 4 a part of the compression device 101 is shown in perspective.
  • the layer composite 203 with the magnets 232 can be seen on the inside, on which the support unit 231 (not shown here) rests during operation.
  • a sack to be compressed is placed on the support unit 231 or a sliding plate (not shown) arranged thereon.
  • the open bag to be compressed is lowered together with the support unit 231, so that the compression device from the in Figure 4 raised position 104 shown in FIG Figure 5 depicted lowered position 103 is transferred.
  • the support unit 231 can be seen, which now rests on the hook 116 of the container 110. This causes the lifting device 102 to be decoupled from the support unit 231.
  • the height of the lifting unit 102 is adjusted via the linear guide 233, which comprises a motor.
  • the in Figure 4 The recognizable motor 235 serves to drive the compression gear 113, with which a periodic pitching movement of the entire container 110 takes place.
  • the dedusting unit 130 is decoupled from the container 110. This can be done, for example, in that the dedusting device 130 is received in an elongated hole 131 on the container 110, so that a sufficient vertical offset is made possible.
  • the elongated hole is sealed with a rubber flap.
  • the in Figures 4 and 5 The recognizable motor 234 serves to drive the conveyor belt 106.
  • Figure 6 shows part of the compression station 100 or the cleaning device 200, with which the inner wall 111 of the container 110 can be effectively cleaned when a compressed open bag 3 is removed from a container 110.
  • the cleaning device 202 with the layer composite 203 is used.
  • the layer composite 203 comprises a plurality of layers 204 to 208, the structure and function of which are set out below with reference to FIG Figures 7 and 8th is explained.
  • Figure 7 shows a plan view of the fluid conducting layer, in particular in the form of a fluid conducting plate 205
  • Figure 8 shows a schematic exploded view of the layer composite or plate composite 203.
  • the cleaning device 200 can be raised and lowered via the lifting device 102.
  • the layer composite 203 here comprises, as the lowermost plate, an end plate 204 designed as a base layer or base plate.
  • the fluid supply 212 is connected to the base plate 204 via a fluid supply opening 213.
  • the layer composite 203 is held together as a whole in the assembled state by means of centering pins 229 and / or screws.
  • Brushes can optionally be attached to or formed on one or more of the plates or layers 204-208, which assist in cleaning the inner wall.
  • the fluid guide plate 205 On which a plurality of fluid outlet openings 210, 211 are formed distributed over the circumference.
  • the fluid outlet openings 210, 211 form the ends of the guide channels 215, 216, which each extend from a radially inner region 219 to the outer side 220 or the outer edge on the circumferential surface 217.
  • the guide channels 215, 216 are here as recesses or through openings in the Fluid guide plate 205 formed.
  • the respective guide channels 215, 216 are separated from one another by material webs 222.
  • all guide channels 215, 216 run essentially in a star shape, so that fluid outlet openings are distributed over the entire circumference, which here serve in particular as blow openings for blowing out air as a cleaning medium.
  • there is a central through opening 225 which has no direct connection to the guide channels of the fluid guide plate 205.
  • a spacer plate 206 which has a distribution trough 223 (distribution space), which is designed here as a through opening in the spacer plate 26.
  • the fluid to be distributed here air
  • the fluid to be distributed is distributed to all guide channels 215, 216 via the distribution trough 223, so that air is blown to the outside from all guide channels 215, 216 via the air supply through the central fluid supply opening 213.
  • the intensity of the blown air can be adjusted via the cross-sectional area of the individual guide channels.
  • a cover plate 207 is also provided above the spacer plate 206, to which the end plate 208 finally adjoins.
  • the cleaning device 200 can optionally also comprise only one plate assembly or layer assembly of, for example, three plates or layers, the middle layer or plate then e.g. B. is designed as a fluid guide plate.
  • the guide channels in the fluid guide plate it is possible for the guide channels in the fluid guide plate to be designed as through openings. But it is possible also that the guide channels are, for example, milled into the surface of the fluid guide plate.
  • a magnet 232 (or more) can be provided there or further actuators can be attached, such as, for. B. a short stroke device 140, which is controlled by means of supply bushings 226.
  • a cleaning device 200 can also be used in a corresponding manner for cleaning the receiving boxes 30 or 62 of the filling machine 1.
  • the receiving boxes 30 and / or 62 can thus be cleaned automatically after each bag change.
  • the compression station With the compression station, the compression of the bulk material filled into an open sack can be increased considerably. It is possible to provide a compression station in which several compression devices are arranged one behind the other, so that parallel operation and parallel compression of a large number of filled open bags is possible.
  • an open bag to be compacted can be pushed from a conveying device such as a flat belt conveyor to the compacting device via a slide or the like.
  • the actual compression takes place in the container with the tubular inner wall, with a ram being lowered from above and dipping into the open-topped bag, while the bottom of the open-top bag is supported on hooks of the container via a support unit.
  • the area around the container can be extracted by means of a dedusting system.
  • the container can perform a periodic lifting and lowering movement, which considerably supports the compression process. At the same time, air can be sucked out through the ram.
  • the contact surface of the press ram can be formed, for example, by a wire mesh or wire mesh, through which suction can take place.
  • the layer composite 203 of the cleaning device 202 is used for this, with a plurality of fluid outlet openings 210, 211 being formed on the circumferential surface 217 of the plate composite 203, through which a fluid flow can be directed onto the inner wall of the container.
  • the airways can be controlled in a simple manner by a corresponding design of the fluid guide plate, with the intensity being able to be adjusted accordingly by adapting the cross section or by adjusting the number of outlet openings 210, 211 per circumferential length.
  • the orientation of the air outlet 210, 211 defines the direction of flow of the fluid and thus the direction of the fluid flow 209.
  • a supply feedthrough 226 can be formed on the layer assembly in order to enable, for example, a compressed air or vacuum connection or a compressed air or vacuum feed-through.
  • the construction of the compression station 100 and the construction of the cleaning device 200 can each be implemented simply and inexpensively.
  • Figure 9 shows a detail of a lifting device 102, a short lifting device 140 being attached to the layer composite 203, which can here adjust the height of the plate 208 by +/- 5 mm. As a result, the support unit 231 is also adjusted accordingly.
  • the Short stroke device 140 could also be integrated into linear guide 233.
  • the layer composite 203 here comprises the layers 204, 205 and 207.
  • the layers 204 and 207 accommodate the fluid guide plate 205 between them, on which the fluid outlet openings 210, 211 are formed.
  • the fluid outlet openings are z. B. been cut out of the plate 205 by water jet cutting.
  • the short lifting device 140 is attached to the plate 207, which can adjust the height of the plate 208 once again (slightly) in order to facilitate the transfer of an open bag from the conveying device or onto the conveying device 106.
  • the open bag rests on the support unit 231, which is magnetically and thus releasably attached to the plate 208.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • Basic Packing Technique (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Description

Die vorliegende Erfindung betrifft eine Verdichtungsstation mit wenigstens einer Verdichtungseinrichtung zur Verdichtung von mit Schüttgütern gefüllten Offensäcken. Die Erfindung wird insbesondere im Zusammenhang mit einer Vorrichtung verwendet, wie sie aus der WO 2016/046302 A1 bekannt geworden sind. Bei einer solchen bekannten Vorrichtung werden Säcke beispielsweise mit Schüttgütern wie Zement, hochwertigem Fugenmörtel oder anderen Baustoffen gefüllt. Dabei werden quaderförmige Säcke mit einem hohen Verdichtungsgrad produziert.The present invention relates to a compacting station with at least one compacting device for compacting open sacks filled with bulk goods. The invention is used in particular in connection with a device such as that described in US Pat WO 2016/046302 A1 have become known. In such a known device, bags are filled, for example, with bulk materials such as cement, high-quality joint mortar or other building materials. Block-shaped bags with a high degree of compression are produced.

Im Stand der Technik sind mit der WO 2016/046302 A1 eine Vorrichtung und ein Verfahren zum Füllen von Offensäcken bekannt geworden, wobei bei dieser bekannten Vorrichtung das Abfüllgewicht eines gefüllten offenen Sacks zwischen etwa 1 kg und 10 kg beträgt. Mit der bekannten Vorrichtung werden insbesondere Schüttgüter wie Zement oder hochwertiger Fugenmörtel oder andere Baustoffe in Offensäcke abgefüllt, die auch als Beutel oder Kleinbeutel bezeichnet werden. Bei der bekannten Vorrichtung können die Säcke direkt in einer der Vorrichtung vorgeschalteten Einrichtung im Rahmen des Füllprozesses hergestellt werden. Dazu wird beispielsweise eine Flachfolie über eine Formschulter geführt und die Flachfolie wird dort zu einem Folienschlauch verschweißt. Bei der bekannten Vorrichtung wird der zu füllende Offensack in einem Aufnahmekasten aufgenommen und dort gefüllt. Mit der bekannten Vorrichtung lassen sich kastenförmige Offensäcke abfüllen, die während des Prozesses verdichtet werden. Am Ende des Prozesses können quaderförmige Offensäcke verpackt werden. Die bekannte Vorrichtung funktioniert zufriedenstellend.In the prior art are with the WO 2016/046302 A1 a device and a method for filling open sacks have become known, with this known device the filling weight of a filled open sack being between approximately 1 kg and 10 kg. With the known device, in particular bulk goods such as cement or high-quality joint mortar or other building materials are filled into open bags, which are also referred to as bags or small bags. In the known device, the bags can be produced directly in a device upstream of the device as part of the filling process. For this purpose, for example, a flat film is passed over a forming shoulder and the flat film is welded there to form a film tube. In the known device, the open bag to be filled is received in a receiving box and filled there. With the known device can Filling box-shaped open-top bags that are compacted during the process. At the end of the process, square open bags can be packed. The known device works satisfactorily.

Wenn die mit Schüttgütern gefüllten Offensäcke aber von vielen Personen in die Hand genommen werden oder wenn die Offensäcke zu stark gedrückt (oder ausgiebig mit den Händen befingert) werden, können die Säcke aufweichen und ihre exakte quaderförmige Gestalt verlieren.However, if the open sacks filled with bulk goods are picked up by many people or if the open sacks are pressed too hard (or fingered extensively with the hands), the sacks can soften and lose their exact cuboid shape.

Es ist deshalb die Aufgabe der vorliegenden Erfindung, eine Vorrichtung zur Verfügung zu stellen, womit gefüllte Offensäcke ihre quaderförmige Gestalt noch besser behalten.It is therefore the object of the present invention to provide a device with which filled open sacks retain their cuboid shape even better.

Diese Aufgabe wird gelöst durch eine Verdichtungsstation mit den Merkmalen des Anspruchs 1 und durch ein Verfahren mit den Merkmalen des Anspruchs 13 gelöst. Bevorzugte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche. Weitere Vorteile und Merkmale dieses Aspekts der Erfindung ergeben sich aus der allgemeinen Beschreibung und der Beschreibung der Ausführungsbeispiele.This object is achieved by a compression station with the features of claim 1 and by a method with the features of claim 13. Preferred developments of the invention are the subject matter of the subclaims. Further advantages and features of this aspect of the invention emerge from the general description and the description of the exemplary embodiments.

Eine erfindungsgemäße Verdichtungsstation umfasst wenigstens eine Verdichtungseinrichtung zur Verdichtung von mit Schüttgütern gefüllten Offensäcken. Die Verdichtungseinrichtung umfasst einen Behälter mit einer rohrförmigen Innenwand und einem Aufnahmeraum zur Aufnahme eines gefüllten Offensacks. Des weiteren ist eine Stützeinheit an einer höhenverfahrbaren Hebeeinrichtung vorgesehen. Die Stützeinheit ist insbesondere mittels der höhenverfahrbaren Hebeeinrichtung relativ zu dem Behälter in der Höhe verstellbar. Die Stützeinheit wird in einer abgesenkten Stellung der Hebeeinrichtung von unten unterstützt und ist in einer angehobenen Stellung zur Übernahme eines gefüllten Offensacks von einer benachbarten Fördereinrichtung geeignet. Des Weiteren ist ein von oben absenkbarer Pressstempel umfasst, der in einer abgesenkten Position von oben auf das Schüttgut einwirkt und der in einer angehobenen Position die Übernahme eines gefüllten Offensacks von einer benachbarten Fördereinrichtung ermöglicht.A compression station according to the invention comprises at least one compression device for the compression of open sacks filled with bulk goods. The compression device comprises a container with a tubular inner wall and a receiving space for receiving a filled open bag. Furthermore, a support unit is provided on a height-adjustable lifting device. The support unit is adjustable in height relative to the container in particular by means of the height-adjustable lifting device. In a lowered position of the lifting device, the support unit is supported from below and, in a raised position, is suitable for taking over a filled open bag from an adjacent conveyor device. Furthermore, a press ram that can be lowered from above is included, which in a lowered position acts on the bulk material from above and which, in a raised position, enables a filled open bag to be taken over from an adjacent conveyor device.

Die erfindungsgemäße Verdichtungsstation hat viele Vorteile. Ein erheblicher Vorteil der erfindungsgemäßen Verdichtungsstation besteht darin, dass ein gefüllter Offensack innerhalb eines Behälters verdichtet wird. Dadurch wird dem Offensack die Form des Behälters aufgeprägt. Beispielsweise sind quaderförmige gefüllte Offensack mit einer hohen Verdichtung herstellbar.The compression station according to the invention has many advantages. A considerable advantage of the compression station according to the invention is that a filled open bag is compressed within a container. As a result, the shape of the container is impressed on the open bag. For example, square-shaped, filled open bags with a high degree of compression can be produced.

Insbesondere wird die Stützeinheit in einer abgesenkten Stellung der Hebeeinrichtung auf Stützhaken des Behälters abgestützt bzw. abgesetzt und von diesen von unten unterstützt. Möglich ist aber auch eine anderweitige Unterstützung von unten.In particular, in a lowered position of the lifting device, the support unit is supported or set down on support hooks of the container and supported by them from below. Other support from below is also possible.

Vorzugsweise ist der Behälter über ein Verdichtungsgetriebe periodisch um einen Behälterhub anhebbar und absenkbar. Durch eine periodische Anhebung und Absenkung des Behälters relativ zu dem Pressstempel wird eine stampfende oder rüttelnde Verdichtung des in den Offensack abgefüllten Schüttguts gewährleistet. Der Behälterhub beträgt vorzugsweise weniger als ein Fünftel und insbesondere weniger als ein Zehntel der Länge des Behälters. In besonders bevorzugten Ausgestaltungen beträgt der Behälterhub weniger als 50 mm und insbesondere weniger als 20 mm und vorzugsweise weniger als 10 mm. In einer konkreten Ausgestaltung wird ein Hub von 6 mm eingesetzt. Abhängig von der Gebindegröße und insbesondere der Gebindehöhe und dem gewünschten Verdichtungsgrad und der Verdichtungsfähigkeit des Schüttguts kann der Hub ausgewählt werden.The container can preferably be raised and lowered periodically by one container stroke via a compression gear. A periodic raising and lowering of the container relative to the ram ensures a pounding or shaking compression of the bulk material filled into the open bag. The container stroke is preferably less than a fifth and in particular less than a tenth of the length of the container. In particularly preferred embodiments, the container stroke is less than 50 mm and in particular less than 20 mm and preferably less than 10 mm. In a specific embodiment, a stroke of 6 mm is used. The stroke can be selected depending on the container size and in particular the container height and the desired degree of compression and the compressibility of the bulk material.

Vorzugsweise wird der Pressstempel über einen Pneumatikantrieb angetrieben. Der Pneumatikantrieb kann wenigstens einen Pneumatikzylinder umfassen. Vorzugsweise wird das Verdichtungsgetriebe über einen Elektromotor angetrieben. Die Kombination eines Pneumatikantriebs und eines anderen zum Beispiel elektrischen Antriebs hat den Vorteil, dass der Pneumatikantrieb Druckstöße ausgleichen kann, sodass eine Überbelastung zuverlässig verhindert wird.The ram is preferably driven by a pneumatic drive. The pneumatic drive can comprise at least one pneumatic cylinder. The compression gear is preferably driven by an electric motor. The combination of a pneumatic drive and another, for example electric drive has the advantage that the Pneumatic drive can compensate for pressure surges, so that overloading is reliably prevented.

Ein weiterer erheblicher Vorteil eines pneumatisch betriebenen Pressstempels und eines Verdichtungsgetriebes ist, dass der Pressstempel bei zunehmender Verdichtung (durch die Pneumatik bedingt) automatisch nachgeführt wird. Auch bei zunehmender Verdichtung wird sicher gestellt, dass die einwirkende Kraft (praktisch) gleich bleibt. Alternativ ist auch möglich, dass der Pressstempel still steht und der Behälter hochgefahren und pneumatisch nachgeführt wird.Another significant advantage of a pneumatically operated press ram and a compression gear is that the press ram is automatically adjusted with increasing compression (due to the pneumatics). Even with increasing compression, it is ensured that the acting force remains (practically) the same. Alternatively, it is also possible for the ram to stand still and the container to be raised and pneumatically adjusted.

In vorteilhaften Ausgestaltungen ist an dem Behälter eine Entstaubung angebracht. Möglich ist es beispielsweise, dass die obere Behälteröffnung wenigstens teilweise von einer Entstaubungsöffnung umgeben ist. Beispielsweise kann auf einer Seite des Behälters oder es können auf mehreren Seiten des Behälters Entstaubungsspalte vorgesehen sein, die den oberen Bereich des Behälters absaugen und somit einen Großteil eventuell austretenden Staubes zuverlässig abführen.In advantageous embodiments, a dedusting device is attached to the container. It is possible, for example, for the upper container opening to be at least partially surrounded by a dedusting opening. For example, dedusting gaps can be provided on one side of the container or on several sides of the container, which suction the upper area of the container and thus reliably remove a large part of any dust that may emerge.

In bevorzugten Ausgestaltungen ist ein oberer Abschnitt des Behälters konisch oder trichterförmig oder dergleichen ausgestaltet, sodass ein Einführen eines Offensacks in den Behälter erleichtert wird.In preferred embodiments, an upper section of the container is conical or funnel-shaped or the like, so that it is easier to insert an open bag into the container.

In vorteilhaften Ausgestaltungen ist der Verdichtungseinrichtung ein Schieber, Schwenkarm oder ähnliches zugeordnet bzw. die Verdichtungseinrichtung weist einen Schieber auf, mit welchem der gefüllte Offensack seitlich von zum Beispiel der Fördereinrichtung auf die Stützeinheit und/oder wieder zurück schiebbbar ist. Darüber kann von der Fördereinrichtung ein zu verdichtender Offensack abgenommen und in der Verdichtungsstation verdichtet werden, während die Fördereinrichtung an sich weiterläuft und beispielsweise einen zweiten gefüllten Offensack zu einer zweiten Verdichtungseinrichtung der Verdichtungsstation transportiert. Über die parallele und gleichzeitige Verdichtung mehrerer gefüllter Offensäcke kann die Verarbeitungsgeschwindigkeit bei gleichzeitig langer Verweilzeit in der Verdichtungsstation erhöht werden.In advantageous refinements, the compression device is assigned a slide, swivel arm or the like, or the compression device has a slide with which the filled open bag can be pushed onto the support unit and / or back again laterally from, for example, the conveyor device. In addition, an open bag to be compressed can be removed from the conveyor device and compressed in the compression station, while the conveyor device itself continues to run and, for example, transports a second filled open bag to a second compression device of the compression station. About the parallel and simultaneous compression If there are several filled open-mouth bags, the processing speed can be increased with a long dwell time in the compression station.

In allen Ausgestaltungen ist es bevorzugt, dass der Schieber Sauger umfasst, um die obere Sackwandung offen zu halten. Vorzugsweise umfasst der Schieber Sauger in unterschiedlichen Höhen, um die obere Sackwandung von unterschiedlich hohen Offensäcken jeweils gezielt offen halten zu können.In all configurations, it is preferred that the slide includes suction cups in order to keep the upper bag wall open. The slide preferably comprises suction cups at different heights in order to be able to keep the upper sack wall open in a targeted manner in each case of open sacks of different heights.

In allen Ausgestaltungen ist es möglich, dass die Stützeinheit über eine Kurzhubeinrichtung anhebbar ist. Dadurch wird es ermöglicht, dass die Stützeinheit bei der Überführung eines verdichteten Offensacks von der Stützeinheit auf die Fördereinrichtung etwas höher positioniert wird, als die Ebene der Fördereinrichtung, sodass ein leichtes Abschieben des schon verdichteten Offensacks auf die Fördereinrichtung ermöglicht wird. Umgekehrt kann die Stützeinheit etwas unterhalb des Höhenniveaus der Fördereinrichtung platziert werden, wenn mit dem Schieber ein zu verdichtender Offensack von der Fördereinrichtung auf die Stützeinheit überführt wird. Beispielsweise kann die Kurzhubeinrichtung einen Hub von 5 mm oder 10 mm oder 20 mm oder eines Zwischenwerts durchführen. Bei einem Hub von 10 mm besteht dann vorzugsweise jeweils eine Höhendifferenz von etwa 5 mm, wenn von der Fördereinrichtung ein zu verdichtender Offensack mittels des Schiebers an die Stützeinheit übergeben wird und es besteht auch eine Höhendifferenz von etwa 5 mm, wenn anschließend nach dem Verdichten der Offensack von der Stützeinheit auf die Fördereinrichtung wieder zurückgeschoben werden soll.In all of the configurations it is possible for the support unit to be able to be raised using a short lifting device. This enables the support unit to be positioned slightly higher than the level of the conveyor when transferring a compressed open sack from the support unit to the conveyor, so that the already compressed open sack can be pushed off easily onto the conveyor. Conversely, the support unit can be placed slightly below the level of the conveyor device when an open bag to be compressed is transferred from the conveyor device to the support unit with the pusher. For example, the short stroke device can perform a stroke of 5 mm or 10 mm or 20 mm or an intermediate value. With a stroke of 10 mm, there is preferably a height difference of about 5 mm each time when an open bag to be compacted is transferred to the support unit by means of the pusher from the conveyor, and there is also a height difference of about 5 mm when the Open bag is to be pushed back from the support unit onto the conveyor.

In allen Ausgestaltungen ist es bevorzugt, dass der Pressstempel mit einer Absaugeinrichtung ausgerüstet ist.In all of the configurations it is preferred that the press ram is equipped with a suction device.

In allen Ausgestaltungen ist es bevorzugt, dass die Verdichtungsstation wenigstens 2 Verdichtungseinrichtungen oder 3 Verdichtungseinrichtungen oder mehr Verdichtungseinrichtungen zur Verdichtung von mit Schüttgütern gefüllten Offensäcken umfasst. Dabei sind die Verdichtungseinrichtungen vorzugsweise jeweils hintereinander angeordnet und über eine Fördereinrichtung miteinander verbunden. Dadurch wird es möglich, eine Mehrfachverdichtung eines gefüllten Offensack durchzuführen. Möglich ist es insbesondere aber auch, an mehreren Verdichtungseinrichtungen jeweils gleichzeitig einen gefüllten Offensack zu verdichten, sodass die Verarbeitungsgeschwindigkeit entsprechend steigt.In all of the configurations it is preferred that the compression station comprises at least 2 compression devices or 3 compression devices or more compression devices for compressing open sacks filled with bulk goods. The compression devices are preferably arranged one behind the other and connected to one another via a conveyor device. This makes it possible to compress a filled open bag several times. In particular, however, it is also possible to compress a filled open bag at several compression devices at the same time, so that the processing speed increases accordingly.

Das erfindungsgemäße Verfahren dient zum Verdichten von Schüttgut in einem mit Schüttgut gefüllten Offensack. Dabei wird ein gefüllter Offensack auf einer Stützeinheit platziert. Die Stützeinheit mit dem darauf platzierten gefüllten Offensack wird soweit in einen rohrförmigen Aufnahmeraum eines Behälters abgesenkt, dass sich der Produktspiegel in dem rohrförmigen Aufnahmeraum des Behälters befindet. Die Stützeinheit des Behälters steht dann auf Stützhaken auf oder wird von unten unterstützt. Ein Pressstempel taucht gleichzeitig oder vorzugsweise schon zuvor von oben in das offene Ende des Offensacks ein und wirkt von oben auf das Schüttgut ein, während von unten die Stützeinheit (abgestützt durch die Stützhaken) gegen den Sackboden drückt. Die Hebeeinrichtung fährt insbesondere nach unten und trennt sich z. B. von der Stützeinheit, wenn die Stützeinheit auf den Stützhaken auftrifft.The method according to the invention is used to compact bulk material in an open bag filled with bulk material. A filled open bag is placed on a support unit. The support unit with the filled open bag placed on it is lowered into a tubular receiving space of a container to such an extent that the product level is in the tubular receiving space of the container. The support unit of the container then stands on support hooks or is supported from below. A press ram dips into the open end of the open bag from above, at the same time or preferably beforehand, and acts on the bulk material from above, while the support unit (supported by the support hooks) presses against the bottom of the sack from below. The lifting device moves in particular down and separates z. B. from the support unit when the support unit strikes the support hook.

Das erfindungsgemäße Verfahren erlaubt eine vorteilhafte Verdichtung von Schüttgütern in Offensäcken, wobei auch eine Parallelisierung zur Leistungssteigerung der Gesamtanlage oder ein höherer Verdichtungsgrad der Gesamtanlage bei gegebener Gesamtleistung ermöglicht wird.The method according to the invention allows an advantageous compression of bulk goods in open sacks, whereby a parallelization to increase the performance of the overall system or a higher degree of compression of the overall system is made possible for a given overall output.

Weitere Vorteile und Merkmale der vorliegenden Erfindung ergeben sich aus den Ausführungsbeispielen, die im Folgenden mit Bezug auf die beiliegenden Figuren erläutert werden.Further advantages and features of the present invention emerge from the exemplary embodiments which are explained below with reference to the accompanying figures.

In den Figuren zeigen:

Figur 1
eine schematische perspektivische Ansicht einer Füllvorrichtung zum Füllen von Schüttgütern in Offensäcke;
Figur 2
eine Verdichtungsstation zum Verdichten der Offensäcke;
Figur 3
eine schematische Querschnittsansicht der Verdichtungsstation gemäß Figur 2;
Figur 4
eine perspektivische Ansicht einer Verdichtungseinrichtung der Verdichtungsstation nach Figur 2 in einer ersten Stellung;
Figur 5
die Verdichtungseinrichtung aus Figur 4 in einer zweiten Stellung;
Figur 6
eine Reinigungsvorrichtung zur Reinigung des Behälters der Verdichtungseinrichtung aus Figur 4;
Figur 7
eine Platte des Plattenverbundes der Reinigungsvorrichtung nach Figur 6;
Figur 8
eine Explosionsdarstellung des Plattenverbundes der Reinigungsvorrichtung nach Figur 6; und
Figur 9
eine schematische Seitenansicht eines Details einer Hebeeinrichtung.
In the figures show:
Figure 1
a schematic perspective view of a Filling device for filling bulk goods into open-top bags;
Figure 2
a compacting station for compacting the open bags;
Figure 3
a schematic cross-sectional view of the compression station according to FIG Figure 2 ;
Figure 4
a perspective view of a compression device of the compression station according to Figure 2 in a first position;
Figure 5
the compression device off Figure 4 in a second position;
Figure 6
a cleaning device for cleaning the container of the compression device Figure 4 ;
Figure 7
a plate of the plate assembly according to the cleaning device Figure 6 ;
Figure 8
an exploded view of the panel assembly according to the cleaning device Figure 6 ; and
Figure 9
a schematic side view of a detail of a lifting device.

Figur 1 zeigt den grundsätzlichen Aufbau einer Abfüllmaschine 1. Dabei zeigt Figur 1 eine perspektivische Gesamtansicht der Abfüllmaschine 1 zur Abfüllung von Schüttgütern (und gegebenenfalls Fluiden) in flexible und oben offene Säcke 3. Die zu verarbeitenden Säcke 3 bestehen aus einem flexiblen Material und insbesondere aus einem Kunststoffmaterial. Die Abfüllmaschine 1 umfasst ein Füllkarussell 2, eine Sackquelle 70 und ein Zwischensilo 80 zur Zwischenpufferung des abzufüllenden Schüttguts. Figure 1 shows the basic structure of a filling machine 1. It shows Figure 1 a perspective overall view of the filling machine 1 for filling bulk goods (and possibly fluids) in flexible and open-top bags 3. The bags 3 to be processed consist of a flexible material and in particular of a plastic material. The filling machine 1 comprises a filling carousel 2, a sack source 70 and an intermediate silo 80 for intermediate buffering of the bulk material to be filled.

Als Sackquelle 70 ist hier eine Folienrolle 71 vorgesehen, auf die eine Folienbahn 72 aufgewickelt ist. Die von der Folienrolle 71 abgewickelte Folienbahn 72 wird einer Formschulter 73 zugeführt. Dort wird die Folienbahn 72 aus Kunststofffolie um die Schulter herum geführt und es wird eine Längsnaht geschweißt, sodass ein durchgehender Folienschlauch entsteht.A film roll 71, onto which a film web 72 is wound, is provided here as the sack source 70. The film web 72 unwound from the film roll 71 is fed to a forming shoulder 73. There, the film web 72 made of plastic film is guided around the shoulder and a longitudinal seam is welded so that a continuous film tube is created.

An der Übergabestation 60 wird der Sackboden hergestellt, in dem geeignete Schweißnähte quer zur Längserstreckung der Schlauchfolie eingebracht werden. Die im passenden Querschnitt gehaltene Schlauchfolie wird weitergefördert und in den Aufnahmekasten 62 der Übergabestation 60 gebracht. Dort wird der zu füllende offene Sack 3 formschlüssig aufgenommen. Für die Zufuhr wird die Schlauchfolie passend abgeschnitten, sodass das oben offene Ende des offenen Sacks hergestellt wird.The bottom of the bag is produced at the transfer station 60, in which suitable weld seams are introduced transversely to the longitudinal extension of the tubular film. The tubular film held in the appropriate cross-section is conveyed further and brought into the receiving box 62 of the transfer station 60. There the open sack 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-topped end of the open sack is produced.

Möglich ist auch die Herstellung der oben offenen Säcke aus einem bereits vorgefertigten und zum Beispiel extrudierten Folienschlauch oder auch die Zuführung komplett vorgefertigter flexibler Säcke oder Beutel aus einem Magazin oder Ähnlichem.It is also possible to manufacture the open-topped sacks from an already prefabricated and, for example, extruded film tube, or also to supply completely prefabricated flexible sacks or bags from a magazine or the like.

In Figur 1 ist die Schwenkposition 63 der Übergabestation 60 abgebildet.In Figure 1 the pivot position 63 of the transfer station 60 is shown.

Die Vorrichtung bzw. Abfüllmaschine 1 weist ein Grundgestell auf, an dem das Füllkarussell 2 und die weiteren Komponenten befestigt sind. Der Teil 5 der Vorrichtung ist feststehend ausgeführt, während der Teil 6 sich im Betrieb dreht. Es sind verschiedene Behandlungsstationen an den einzelnen Füllplätzen vorgesehen, wobei an einer Behandlungsstation die Füllung im Grobstrom und an einer weiteren Behandlungsstation 41 die Füllung im Feinstrom erfolgt. An weiteren Behandlungsstationen erfolgt eine Verdichtung des abgefüllten Schüttguts.The device or filling machine 1 has a base frame to which the filling carousel 2 and the other components are attached. Part 5 of the device is designed to be stationary, while part 6 rotates during operation. Various treatment stations are provided at the individual filling stations, with the filling being carried out in the coarse flow at one treatment station and the filling in the fine flow at a further treatment station 41. The filled bulk material is compacted at further treatment stations.

Das Füllkarussell 2 wird hier getaktet betrieben. Aus dem Zwischensilo 80 wird das benötigte Schüttgut zugeführt.The filling carousel 2 is operated clocked here. The required bulk material is fed from the intermediate silo 80.

Wenn die an dem Füllkarussell 2 erreichte Verdichtung noch nicht ausreicht, kann eine Verdichtungsstation 100 nachgeschaltet werden, wie sie in Figur 2 abgebildet ist. Die Verdichtungsstation 100 aus Figur 2 umfasst hier fünf unterschiedliche Verdichtungseinrichtungen 101, die hier hintereinander geschaltet angeordnet sind.If the compression achieved at the filling carousel 2 is not yet sufficient, a compression station 100 can be connected downstream, as shown in FIG Figure 2 is shown. The compaction station 100 off Figure 2 here comprises five different compression devices 101, which are here arranged in series.

Jede Verdichtungseinrichtung 101 umfasst eine Presseinrichtung 123, die jeweils über einen Pneumatikantrieb 124 in Form jeweils eines Pneumatikzylinders. Mittels einer Hub- und Senkeinheit 126 ist ein Pressstempel 120 anhebbar bzw. absenkbar. In der abgesenkten Stellung wird dann über den Pneumatikzylinder 124 Druck auf das Schüttgut ausgeübt.Each compression device 101 comprises a pressing device 123, each of which has a pneumatic drive 124 in the form of a pneumatic cylinder. A ram 120 can be raised or lowered by means of a lifting and lowering unit 126. In the lowered position, pressure is then exerted on the bulk material via the pneumatic cylinder 124.

Die gefüllten Offensäcke 3 werden über die Fördereinrichtung 106 gefördert, die vorzugsweise als Förderband ausgeführt ist. Wenn eine Verdichtung an einer der Verdichtungseinrichtungen 101 erfolgen soll, wird die Stauklappe 108 eingefahren bzw. eingeschwenkt, um den Offensack in Förderrichtung definiert zu positionieren und im geeigneten Moment wird der entsprechende Schieber 105 aktiviert. So wird ein zu verdichtender Offensack 3 von dem der Fördereinrichtung 106 abgezogen und in einen Behälter 110 eingeführt. Zur Beseitigung von Staub bei der Verdichtung sind Entstaubungsleitungen 130 vorgesehen. Mit der Hebeeinrichtung 102 kann eine in Figur 2 nicht sichtbare Stützeinheit 231 in der Höhe verstellt werden.The filled open sacks 3 are conveyed via the conveying device 106, which is preferably designed as a conveyor belt. If compression is to take place on one of the compression devices 101, the damming flap 108 is retracted or swiveled in in order to position the open bag in a defined manner in the conveying direction and the corresponding slide 105 is activated at the appropriate moment. Thus, an open bag 3 to be compressed is withdrawn from the conveyor device 106 and introduced into a container 110. Dedusting lines 130 are provided to remove dust during compression. With the lifting device 102 an in Figure 2 non-visible support unit 231 can be adjusted in height.

Figur 3 zeigt einen schematischen Querschnitt durch die Verdichtungsstation gemäß Figur 2. Am oberen Ende ist die Presseinrichtung 123 mit dem Pneumatikzylinder 124 erkennbar, an den sich nach unten hin ein Gestänge und dann der damit gekoppelte Pressstempel 120 anschließt. Die eigentliche Pressfläche des Pressstempels 120 kann mit einer Absaugeinrichtung 125 ausgerüstet sein, um eine wirksame Entlüftung zu bewirken. Durch die Absaugeinrichtung 125 kann Luft effektiv aus dem Schüttgut abgesaugt werden. Figure 3 shows a schematic cross section through the compression station according to FIG Figure 2 . At the upper end, the pressing device 123 with the pneumatic cylinder 124 can be seen, to which a linkage and then the press ram 120 coupled to it are connected at the bottom. The actual pressing surface of the press ram 120 can be equipped with a suction device 125 in order to effect an effective ventilation. The suction device 125 can effectively suck air out of the bulk material.

Der Schieber 105 befindet sich hier in der Position oberhalb des Behälters 110, die der Schieber erreicht hat, nachdem ein zu verdichtender Offensack 3 von der Fördereinrichtung 106 auf eine Stützeinheit 131 überführt wurde. Der Offensack 3 ist hier gestrichelt dargestellt, ebenso wie ein in den Offensack eingetauchter Pressstempel 120, der in der abgesenkten Position 121 gestrichelt dargestellt ist. In der angehobenen Stellung 104 steht der Offensack 3 auf der Stützeinheit 231 auf, die über Magnete 232 lösbar mit dem Schichtverbund 203 gekoppelt ist. Wenn sich die Hebeeinrichtung 102 in der abgesenkten Stellung 103 befindet, liegt die Stützeinheit 231 auf Haken 116 am unteren Ende des Behälters 110 auf. Dadurch wird die Stützeinheit 231 von der Hebeeinrichtung 102 entkoppelt, da Kräfte in vertikaler Richtung von oben auf das Schüttgut oder den Offensack direkt über die Haken 116 und den Behälter 110 abgeleitet werden. Die magnetische Verbindung zwischen der Stützeinheit 231 und dem Schichtverbund 203 verhindert ein Verkanten der Stützeinheit 231 in der rohrförmigen Innenwand 111 beim Absenken. Um eine gute Haftwirkung der Magnete jederzeit sicher zu stellen, ist es möglich, einzelne Fluidaustrittsöffnungen z. B. in einem schrägen Winkel in der oberen Deckplatte oder Endplatte austreten zu lassen, um diese von sich darauf ablagernden Partikeln zu reinigen.The slide 105 is here in the position above the container 110, which the slide has reached after an open bag 3 to be compressed has been transferred from the conveying device 106 to a support unit 131. The open sack 3 is shown here in dashed lines, as is a press ram 120 which is immersed in the open sack and which is shown in broken lines in the lowered position 121. In the raised position 104, the open bag 3 rests on the support unit 231, which is detachably coupled to the layer composite 203 via magnets 232. When the lifting device 102 is in the lowered position 103, the support unit 231 rests on hooks 116 at the lower end of the container 110. As a result, the support unit 231 is decoupled from the lifting device 102, since forces in the vertical direction are diverted from above onto the bulk material or the open bag directly via the hooks 116 and the container 110. The magnetic connection between the support unit 231 and the layer composite 203 prevents the support unit 231 from tilting in the tubular inner wall 111 when it is lowered. In order to ensure good adhesion of the magnets at all times, it is possible to use individual fluid outlet openings such. B. to exit at an oblique angle in the upper cover plate or end plate in order to clean them from particles deposited thereon.

Der Schichtverbund kann aus einzelnen (und vor der Montage bzw. Fertigung) separaten Platten bestehen, die einen einteiligen oder mehrteiligen Plattenverbund bilden. Möglich und bevorzugt ist es aber auch, dass wenigstens ein Teil des Schichtverbundes oder der gesamte Schichtverbund insgesamt einstückig ausgebildet ist und z. B. in einem additiven Fertigungsverfahren und/oder als 3D-Druck hergestellt wird. Dann kann auch der gesamte Schichtverbund in einem Herstellschritt gefertigt werden. Dabei können Leitkanäle oder Fluiddurchführungen z. B. durch Weglassen von Material hergestellt werden.The layer composite can consist of individual (and prior to assembly or production) separate panels that form a one-piece or multi-part panel composite. It is also possible and preferred, however, that at least a part of the layer composite or the entire layer composite is designed in one piece and z. B. is produced in an additive manufacturing process and / or as a 3D printing. The entire layer composite can then also be manufactured in one manufacturing step. It can guide channels or fluid passages z. B. be made by omitting material.

Der Behälter 110 weist einen rohrförmigen Aufnahmeraum mit einer rohrförmigen Innenwand 111 auf. Der Querschnitt ist hier rechteckig, sodass quaderförmige Offensäcke entstehen.The container 110 has a tubular receiving space with a tubular inner wall 111. The cross-section here is rectangular, so that cuboid open bags are created.

Der obere Abschnitt 115 des Behälters 110 ist leicht konisch ausgebildet, um ein Einführen eines zu verdichtenden Offensacks zu erleichtern.The upper section 115 of the container 110 is slightly conical in order to facilitate the introduction of an open bag to be compressed.

In Figur 4 ist ein Teil der Verdichtungseinrichtung 101 perspektivisch dargestellt. Am oberen Ende des Behälters 110 ist im Inneren der Schichtverbund 203 mit den Magneten 232 erkennbar, auf dem im Betrieb die hier nicht dargestellte Stützeinheit 231 aufliegt. Auf der Stützeinheit 231 bzw. einer darauf angeordneten Gleitplatte (nicht dargestellt) wird ein zu verdichtender Sack abgestellt. Im Anschluss daran wird der zu verdichtende Offensack zusammen mit der Stützeinheit 231 abgesenkt, sodass die Verdichtungseinrichtung von der in Figur 4 dargestellten angehobenen Stellung 104 in die in Figur 5 dargestellte abgesenkte Stellung 103 überführt wird.In Figure 4 a part of the compression device 101 is shown in perspective. At the upper end of the container 110, the layer composite 203 with the magnets 232 can be seen on the inside, on which the support unit 231 (not shown here) rests during operation. A sack to be compressed is placed on the support unit 231 or a sliding plate (not shown) arranged thereon. Subsequently, the open bag to be compressed is lowered together with the support unit 231, so that the compression device from the in Figure 4 raised position 104 shown in FIG Figure 5 depicted lowered position 103 is transferred.

Am unteren Ende des unten offenen Behälters 110 ist die Stützeinheit 231 erkennbar, die nun auf den Haken 116 des Behälters 110 aufliegt. Dadurch wird eine Entkopplung der Hebeeinrichtung 102 von der Stützeinheit 231 bewirkt. Eine Höhenverstellung der Hebeeinheit 102 erfolgt über die Linearführung 233, die einen Motor umfasst.At the lower end of the container 110, which is open at the bottom, the support unit 231 can be seen, which now rests on the hook 116 of the container 110. This causes the lifting device 102 to be decoupled from the support unit 231. The height of the lifting unit 102 is adjusted via the linear guide 233, which comprises a motor.

Der in Figur 4 erkennbare Motor 235 dient zum Antrieb des Verdichtungsgetriebes 113, mit dem eine periodische Stampfbewegung des gesamten Behälters 110 erfolgt.The in Figure 4 The recognizable motor 235 serves to drive the compression gear 113, with which a periodic pitching movement of the entire container 110 takes place.

Um eine Entkopplung der Hubbewegung des Behälters 110 von der Entstaubung 130 zu erhalten, ist die Entstaubung 130 von dem Behälter 110 entkoppelt. Das kann beispielsweise dadurch erfolgen, dass die Entstaubung 130 in einem Langloch 131 an dem Behälter 110 aufgenommen ist, sodass ein ausreichender Vertikalversatz ermöglicht wird. Das Langloch wird durch einen Gummilappen abgedichtet.In order to obtain a decoupling of the lifting movement of the container 110 from the dedusting unit 130, the dedusting unit 130 is decoupled from the container 110. This can be done, for example, in that the dedusting device 130 is received in an elongated hole 131 on the container 110, so that a sufficient vertical offset is made possible. The elongated hole is sealed with a rubber flap.

Der in Figuren 4 und 5 erkennbare Motor 234 dient zum Antrieb des Förderbandes 106.The in Figures 4 and 5 The recognizable motor 234 serves to drive the conveyor belt 106.

Figur 6 zeigt einen Teil der Verdichtungsstation 100 bzw. die Reinigungsvorrichtung 200, mit der schon bei der Entnahme eines verdichteten Offensacks 3 aus einem Behälter 110 eine effektive Reinigung der Innenwandung 111 des Behälters 110 erfolgen kann. Dazu wird die Reinigungseinrichtung 202 mit dem Schichtverbund 203 eingesetzt. Figure 6 shows part of the compression station 100 or the cleaning device 200, with which the inner wall 111 of the container 110 can be effectively cleaned when a compressed open bag 3 is removed from a container 110. For this purpose, the cleaning device 202 with the layer composite 203 is used.

Der Schichtverbund 203 umfasst eine Mehrzahl an Schichten 204 bis 208, deren Aufbau und Funktion im Folgenden mit Bezug auf die Figuren 7 und 8 erläutert wird. Figur 7 zeigt dabei eine Draufsicht auf die Fluidleitschicht insbesondere in Form einer Fluidleitplatte 205, während Figur 8 eine schematische Explosionsdarstellung des Schichtenverbundes bzw. Plattenverbundes 203 zeigt.The layer composite 203 comprises a plurality of layers 204 to 208, the structure and function of which are set out below with reference to FIG Figures 7 and 8th is explained. Figure 7 shows a plan view of the fluid conducting layer, in particular in the form of a fluid conducting plate 205, while Figure 8 shows a schematic exploded view of the layer composite or plate composite 203.

Die Reinigungsvorrichtung 200 ist über die Hebeeinrichtung 102 anhebbar und absenkbar. Der Schichtverbund 203 umfasst als unterste Platte hier eine als Bodenschicht oder Bodenplatte ausgebildete Endplatte 204. An der Bodenplatte 204 ist die Fluidzufuhr 212 über eine Fluidzufuhröffnung 213 angeschlossen. Über Zentrierstifte 229 und/oder Schrauben wird der Schichtverbund 203 insgesamt im montierten Zustand zusammengehalten.The cleaning device 200 can be raised and lowered via the lifting device 102. The layer composite 203 here comprises, as the lowermost plate, an end plate 204 designed as a base layer or base plate. The fluid supply 212 is connected to the base plate 204 via a fluid supply opening 213. The layer composite 203 is held together as a whole in the assembled state by means of centering pins 229 and / or screws.

An einer oder mehreren der Platten oder Schichten 204-208 können optional Bürsten angebracht oder ausgebildet sein, die die Abreinigung der Innenwandung unterstützen.Brushes can optionally be attached to or formed on one or more of the plates or layers 204-208, which assist in cleaning the inner wall.

Oberhalb der Bodenplatte 204 befindet sich die Fluidleitplatte 205, an der eine Vielzahl von Fluidaustrittsöffnungen 210, 211 über dem Umfang verteilt ausgebildet sind.Above the base plate 204 is the fluid guide plate 205, on which a plurality of fluid outlet openings 210, 211 are formed distributed over the circumference.

Die Fluidaustrittsöffnungen 210, 211 bilden die Enden der Leitkanäle 215, 216, die sich jeweils von einem radial inneren Bereich 219 bis zu der Außenseite 220 bzw. dem äußeren Rand auf der Umfangsfläche 217 erstrecken. Hier sind die Leitkanäle 215, 216 als Ausnehmungen bzw. Durchgangsöffnung in der Fluidleitplatte 205 ausgebildet. Die jeweiligen Leitkanäle 215, 216 werden durch Materialstege 222 voneinander getrennt. Hier verlaufen im Prinzip alle Leitkanäle 215, 216 im Wesentlichen sternförmig, sodass sich über dem kompletten Umfang verteilt Fluidaustrittsöffnungen gegeben, die hier insbesondere als Blasöffnungen zum Ausblasen von Luft als Reinigungsmedium dienen. Hier befindet sich in der Fluidleitplatte 205 eine zentrale Durchgangsöffnung 225, die keinerlei unmittelbare Verbindung zu den Leitkanälen der Fluidleitplatte 205 aufweist.The fluid outlet openings 210, 211 form the ends of the guide channels 215, 216, which each extend from a radially inner region 219 to the outer side 220 or the outer edge on the circumferential surface 217. The guide channels 215, 216 are here as recesses or through openings in the Fluid guide plate 205 formed. The respective guide channels 215, 216 are separated from one another by material webs 222. Here, in principle, all guide channels 215, 216 run essentially in a star shape, so that fluid outlet openings are distributed over the entire circumference, which here serve in particular as blow openings for blowing out air as a cleaning medium. Here in the fluid guide plate 205 there is a central through opening 225 which has no direct connection to the guide channels of the fluid guide plate 205.

Oberhalb der Fluidleitplatte 205 wird eine Distanzplatte 206 eingesetzt, die eine Verteilmulde 223 (Verteilraum) aufweist, die hier als Durchgangsöffnung in der Distanzplatte 26 ausgebildet ist. Über die Verteilmulde 223 wird das zu verteilende Fluid (hier Luft) auf alle Leitkanäle 215, 216 verteilt, sodass über die Luftzufuhr durch die zentrale Fluidzufuhröffnung 213 aus allen Leitkanälen 215, 216 Luft nach außen geblasen wird. Über die Querschnittsfläche der einzelnen Leitkanäle kann die Intensität der ausgeblasenen Luft eingestellt werden.Above the fluid guide plate 205, a spacer plate 206 is used, which has a distribution trough 223 (distribution space), which is designed here as a through opening in the spacer plate 26. The fluid to be distributed (here air) is distributed to all guide channels 215, 216 via the distribution trough 223, so that air is blown to the outside from all guide channels 215, 216 via the air supply through the central fluid supply opening 213. The intensity of the blown air can be adjusted via the cross-sectional area of the individual guide channels.

Es ist möglich, dass separate Versorgungsdurchführungen 226 ausgebildet sind, durch die eine Versorgung weiterer Komponenten realisiert werden kann. Durch die Versorgungsdurchführung 226 kann beispielsweise Vakuum geleitet werden. Oder es wird Druckluft durchgeführt. Möglich ist es auch, dass Strom- oder Sensorsignale durch die Versorgungsdurchführung 226 durchgeführt werden.It is possible for separate supply feedthroughs 226 to be formed, through which supply of further components can be realized. For example, a vacuum can be passed through the supply feed-through 226. Or compressed air is carried out. It is also possible for current or sensor signals to be passed through the supply bushing 226.

Oberhalb der Distanzplatte 206 ist noch eine Deckplatte 207 vorgesehen, an die sich schließlich die Endplatte 208 anschließt.A cover plate 207 is also provided above the spacer plate 206, to which the end plate 208 finally adjoins.

Die Reinigungsvorrichtung 200 kann gegebenenfalls auch nur einen Plattenverbund oder Schichtverbund aus beispielsweise drei Platten oder Schichten umfassen, wobei die mittlere Schicht oder Platte dann z. B. als Fluidleitplatte ausgebildet ist. In allen Fällen ist es möglich, dass die Leitkanäle in der Fluidleitplatte als Durchgangsöffnungen ausgebildet sind. Möglich ist es aber auch, dass die Leitkanäle beispielsweise in die Oberfläche der Fluidleitplatte eingefräst sind.The cleaning device 200 can optionally also comprise only one plate assembly or layer assembly of, for example, three plates or layers, the middle layer or plate then e.g. B. is designed as a fluid guide plate. In all cases it is possible for the guide channels in the fluid guide plate to be designed as through openings. But it is possible also that the guide channels are, for example, milled into the surface of the fluid guide plate.

In die oberste Platte 208 können noch Zusatzfunktionen integriert sein. So kann beispielsweise ein Magnet 232 (oder mehrere) dort vorgesehen sein oder weitere Aktoren befestigt sein, wie z. B. eine Kurzhubeinrichtung 140, die mittels Versorgungsdurchführungen 226 angesteuert wird.Additional functions can also be integrated into the top plate 208. For example, a magnet 232 (or more) can be provided there or further actuators can be attached, such as, for. B. a short stroke device 140, which is controlled by means of supply bushings 226.

Eine Reinigungsvorrichtung 200 kann in entsprechender Weise auch zur Reinigung der Aufnahmekästen 30 oder 62 der Abfüllmaschine 1 verwendet werden. So kann nach jedem Sackwechsel eine automatische Reinigung der Aufnahmekästen 30 und/oder 62 erfolgen.A cleaning device 200 can also be used in a corresponding manner for cleaning the receiving boxes 30 or 62 of the filling machine 1. The receiving boxes 30 and / or 62 can thus be cleaned automatically after each bag change.

Mit der Verdichtungsstation kann die Verdichtung des in einen offenen Sack abgefüllten Schüttguts erheblich gesteigert werden. Es ist möglich, eine Verdichtungsstation zur Verfügung zu stellen, bei der mehrere Verdichtungseinrichtungen hintereinander angeordnet sind, sodass ein Parallelbetrieb und eine parallele Verdichtung einer Vielzahl von gefüllten Offensäcken möglich ist. Dabei kann über einen Schieber oder dergleichen ein zu verdichtender Offensack von einer Fördereinrichtung wie einem Flachgurtförderer zu der Verdichtungseinrichtung geschoben werden. Die eigentliche Verdichtung erfolgt in dem Behälter mit der rohrförmigen Innenwand, wobei von oben ein Pressstempel abgesenkt wird und in den oben offenen Offensack eintaucht, während sich der Boden des Offensacks über eine Stützeinheit an Haken des Behälters abstützt. Gleichzeitig kann die Behälterumgebung durch eine Entstaubung abgesaugt werden.With the compression station, the compression of the bulk material filled into an open sack can be increased considerably. It is possible to provide a compression station in which several compression devices are arranged one behind the other, so that parallel operation and parallel compression of a large number of filled open bags is possible. In this case, an open bag to be compacted can be pushed from a conveying device such as a flat belt conveyor to the compacting device via a slide or the like. The actual compression takes place in the container with the tubular inner wall, with a ram being lowered from above and dipping into the open-topped bag, while the bottom of the open-top bag is supported on hooks of the container via a support unit. At the same time, the area around the container can be extracted by means of a dedusting system.

Während des Pressens mit dem Pressstempel kann der Behälter eine periodische Heb- und Senkbewegung durchführen, die den Verdichtungsprozess erheblich unterstützt. Gleichzeitig kann durch den Pressstempel Luft abgesaugt werden. Dazu kann die Kontaktfläche des Pressstempels beispielsweise durch ein Drahtgitter oder Drahtgewebe gebildet werden, durch welches abgesaugt werden kann.During the pressing with the ram, the container can perform a periodic lifting and lowering movement, which considerably supports the compression process. At the same time, air can be sucked out through the ram. For this purpose, the contact surface of the press ram can be formed, for example, by a wire mesh or wire mesh, through which suction can take place.

Sollte bei dem Verdichtungsprozess Staub austreten, kann über die integrierte Reinigungsvorrichtung die Innenwandung des Behälters 100 von anhaftenden Schüttgutpartikeln gereinigt werden. Dazu dient der Schichtverbund 203 der Reinigungseinrichtung 202, wobei auf der Umfangsfläche 217 des Plattenverbundes 203 eine Vielzahl von Fluidaustrittsöffnungen 210, 211 ausgebildet ist, durch die ein Fluidstrom auf die Innenwandung des Behälters gerichtet werden kann.Should dust escape during the compression process, the inside wall of the container 100 can be cleaned of adhering bulk material particles via the integrated cleaning device. The layer composite 203 of the cleaning device 202 is used for this, with a plurality of fluid outlet openings 210, 211 being formed on the circumferential surface 217 of the plate composite 203, through which a fluid flow can be directed onto the inner wall of the container.

Die Steuerung der Luftwege kann auf einfache Art und Weise durch eine entsprechende Ausgestaltung der Fluidleitplatte erfolgen, wobei die Intensität durch eine Querschnittsanpassung oder die Anzahl der Austrittsöffnungen 210, 211 pro Umfangslänge entsprechend eingestellt werden kann. Die Ausrichtung des Luftaustritts 210, 211 definiert die Strömungsrichtung des Fluids und damit die Richtung des Fluidstroms 209.The airways can be controlled in a simple manner by a corresponding design of the fluid guide plate, with the intensity being able to be adjusted accordingly by adapting the cross section or by adjusting the number of outlet openings 210, 211 per circumferential length. The orientation of the air outlet 210, 211 defines the direction of flow of the fluid and thus the direction of the fluid flow 209.

Wenn beispielsweise oberhalb des Plattenverbundes 203 noch weitere Einrichtungen vorgesehen sind, die ebenfalls angesteuert werden sollen, kann eine Versorgungsdurchführung 226 an dem Schichtverbund ausgebildet sein, um beispielsweise einen Druckluft- oder Vakuumanschluss bzw. eine Druckluft- bzw. Vakuumdurchleitung zu ermöglichen.If, for example, further devices are provided above the plate assembly 203 that are also to be controlled, a supply feedthrough 226 can be formed on the layer assembly in order to enable, for example, a compressed air or vacuum connection or a compressed air or vacuum feed-through.

Da die Außenabmessungen des Plattenverbundes regelmäßig an die Innenabmessungen des Behälters 110 angepasst sind, kann durch eine Versorgungsdurchführung 226 ein einfacher Medienaustausch bzw. Datenaustausch realisiert werden.Since the outer dimensions of the plate assembly are regularly adapted to the inner dimensions of the container 110, a simple media exchange or data exchange can be implemented by means of a supply feedthrough 226.

Der Aufbau der Verdichtungsstation 100 und der Aufbau der Reinigungsvorrichtung 200 ist jeweils einfach und kostengünstig realisierbar.The construction of the compression station 100 and the construction of the cleaning device 200 can each be implemented simply and inexpensively.

Figur 9 zeigt ein Detail einer Hebeeinrichtung 102, wobei auf dem Schichtverbund 203 eine Kurzhubeinrichtung 140 angebracht ist, die die Platte 208 hier um +/- 5 mm in der Höhe verstellen kann. Dadurch wird die Stützeinheit 231 entsprechend mitverstellt. Die Kurzhubeinrichtung 140 könnte auch in die Linearführung 233 integriert sein. Figure 9 shows a detail of a lifting device 102, a short lifting device 140 being attached to the layer composite 203, which can here adjust the height of the plate 208 by +/- 5 mm. As a result, the support unit 231 is also adjusted accordingly. The Short stroke device 140 could also be integrated into linear guide 233.

Der Schichtverbund 203 umfasst hier die Schichten 204, 205 und 207. Die Schichten 204 und 207 nehmen zwischen sich die Fluidleitplatte 205 auf, an der die Fluidaustrittsöffnungen 210, 211 ausgebildet sind. Hier sind die Fluidaustrittsöffnungen z. B. durch Wasserstrahlschneiden aus der Platte 205 ausgeschnitten worden. Auf der Platte 207 ist die Kurzhubeinrichtung 140 angebracht, die die Platte 208 noch einmal (etwas) in der Höhe verstellen kann, um die Übergabe eines Offensacks von der Fördereinrichtung oder auf die Fördereinrichtung 106 zu erleichtern. Der Offensack steht auf der Stützeinheit 231 auf, die magnetisch und somit lösbar an der Platte 208 befestigt ist. Bezugszeichenliste: 1 Abfüllmaschine 130 Entstaubung 2 Füllkarussell 140 Kurzhubeinrichtung, Kurzhubzylinder 3 Offensack 5 feststehender Teil 200 Reinigungsvorrichtung 6 beweglicher Teil 201 Längsrichtung 30 Aufnahmekasten 202 Reinigungseinrichtung 41 Behandlungsstation 203 Schichtverbund 60 Übergabestation 204 Schicht, Endschicht, Bodenschicht 61 Schwenkarm 62 Aufnahmekasten 205 Schicht, Fluidleitschicht 63 Schwenkposition 206 Schicht, DistanzSchicht, 70 Sackquelle 207 Schicht, Deckschicht 71 Folienrolle 208 Schicht,Endschicht 72 Folienbahn 209 Fluidstrom 73 Formschulter 210 Fluidaustrittsöffnung 80 Zwischensilo 211 Fluidaustrittsöffnung 100 Verdichtungsstation 212 Fluidzufuhr 101 Verdichtungseinrichtung 213 Fluidzufuhröffnung 102 Hebeeinrichtung 214 Endfläche, Bodenfläche 103 abgesenkte Stellung von 102 215 Leitkanal 215a Leitkanalanfang 104 angehobene Stellung von 102 216 Leitkanal 216a Leitkanalanfang 105 Schieber 217 Umfangsfläche 106 Fördereinrichtung 218 Endfläche, Bodenfläche 107 Sauger an 105 219 radial innerer Bereich 108 Stauklappe 221 Querrichtung 110 Behälter 222 Materialsteg 111 rohrförmige Innenwand 223 Verteilmulde in 206 112 Aufnahmeraum 224 Durchgangsöffnung in 206 113 Verdichtungsgetriebe 225 zentrale Durchgangs-öffnung von 205 115 oberer Abschnitt von 110 116 Haken 226 Versorgungsdurchführung 117 Rüttleraufhängung 227 Bürste 120 Pressstempel 228 Zentrierloch 121 abgesenkte Position 229 Zentrierstift 122 angehobene Position 230 Antrieb 123 Presseinrichtung 231 Stützeinheit 124 Pneumatikantrieb 232 Magnet 125 Absaugeinrichtung an 110 233 Linearführung mit Antrieb 126 Heb- und Senkeinheit 234 Motor 131 Langloch 235 Motor The layer composite 203 here comprises the layers 204, 205 and 207. The layers 204 and 207 accommodate the fluid guide plate 205 between them, on which the fluid outlet openings 210, 211 are formed. Here the fluid outlet openings are z. B. been cut out of the plate 205 by water jet cutting. The short lifting device 140 is attached to the plate 207, which can adjust the height of the plate 208 once again (slightly) in order to facilitate the transfer of an open bag from the conveying device or onto the conveying device 106. The open bag rests on the support unit 231, which is magnetically and thus releasably attached to the plate 208. <b> List of reference symbols: </b> 1 Filling machine 130 Dedusting 2 Filling carousel 140 Short stroke device, short stroke cylinder 3 Open bag 5 fixed part 200 Cleaning device 6th moving part 201 Longitudinal direction 30th Reception box 202 Cleaning facility 41 Treatment station 203 Layer composite 60 Transfer station 204 Layer, top layer, bottom layer 61 Swivel arm 62 Reception box 205 Layer, fluid conducting layer 63 Swivel position 206 Layer, distance layer, 70 Bag source 207 Layer, top layer 71 Foil roll 208 Layer, final layer 72 Film web 209 Fluid flow 73 Form shoulder 210 Fluid outlet opening 80 Intermediate silo 211 Fluid outlet opening 100 Compaction station 212 Fluid supply 101 Compaction device 213 Fluid supply port 102 Lifting device 214 End face, bottom face 103 lowered position from 102 215 Guide channel 215a Guide channel start 104 raised position from 102 216 Guide channel 216a Guide channel start 105 Slider 217 Circumferential surface 106 Conveyor 218 End face, bottom face 107 Sucker at 105 219 radially inner area 108 Storage flap 221 Transverse direction 110 container 222 Material bar 111 tubular inner wall 223 Distribution trough in 206 112 Recording room 224 Through opening in 206 113 Compression gear 225 central passage opening of 205 115 upper section of 110 116 hook 226 Supply implementation 117 Vibrator suspension 227 brush 120 Press ram 228 Center hole 121 lowered position 229 Centering 122 raised position 230 drive 123 Pressing device 231 Support unit 124 Pneumatic drive 232 magnet 125 Extraction device on 110 233 Linear guide with drive 126 Lifting and lowering unit 234 engine 131 Long hole 235 engine

Claims (15)

  1. Compaction station (100) with at least one compacting device (101) for compacting open-mouth bags (3) filled with bulk materials,
    the compacting device comprising a container (110) with a tubular inner wall (111) and a takeup space (112) for taking up a filled open-mouth bag (102), and a support unit (231) on a height-displaceable lifting device (102),
    characterized in
    that the support unit (231) is supported from beneath in a lowered position (103) of the lifting device (102), and in an elevated position (104) it is suitable for taking over a filled open-mouth bag (3) from an adjacent conveyor device (106),
    and that a pressure plug (120) that can be lowered from above is comprised, which in a lowered position (121) acts on the bulk material from above and in an elevated position (122), allows takeover of a filled open-mouth bag (3) from an adjacent conveyor device (106).
  2. The compaction station (100) according to the preceding claim, wherein the container (110) can be periodically lifted and lowered by one container travel by way of a compaction transmission (113).
  3. The compaction station (100) according to the preceding claim, wherein the container travel is less than one fifth of the length of the container, and/or wherein the container travel is less than 50 mm.
  4. The compaction station (100) according to any of the preceding claims, wherein in a lowered position (103) of the lifting device (102), the support unit (231) is supported/set down on support hooks (104) of the container (110).
  5. The compaction station (100) according to any of the preceding claims, wherein the pressure plug (120) is driven by means of a pneumatic drive (123).
  6. The compaction station (100) according to any of the preceding claims, wherein a dust removal system (130) is attached to the container (110).
  7. The compaction station (100) according to any of the preceding claims, wherein a top section (115) of the container (110) is designed cone-shaped or funnel-shaped.
  8. The compaction station (100) according to the preceding claim, wherein a slider (105) is attributed to the compacting device (101) with which the filled open-mouth bag (3) can be laterally pushed from the conveyor device (106) to the support unit (231) and/or back, and/or wherein the slider (105) comprises suckers (107) to keep the top bag wall open.
  9. The compaction station (100) according to any of the preceding claims, wherein the support unit (231) can be lifted by means of a short stroke device (140).
  10. The compaction station (100) according to any of the preceding claims, wherein as an open-mouth bag is pushed out, a compaction transmission and/or a short stroke device can be displaced upwardly from beneath or can be activated to facilitate pushing out, in particular if an open-mouth bag jams during pushing out.
  11. The compaction station (100) according to any of the preceding claims, wherein the pressure plug (120) is provided with a vacuum suction device (125) which can in particular be connected with a vacuum device.
  12. The compaction station (100) according to any of the preceding claims, with at least two compacting devices (101) for compacting open-mouth bags (3) filled with bulk materials, wherein the compacting devices (101) are disposed in series after one another and connected with one another by means of a conveyor device (106).
  13. Method for compacting bulk materials in an open-mouth bag (3) filled with bulk materials, wherein a filled open-mouth bag (3) is placed on a support unit (231),
    wherein the support unit (231) on which the filled open-mouth bag (3) is placed, is lowered into a tubular takeup space (112) of a container (110) far enough for the product level to be located within the tubular takeup space (112) of the container (110),
    and that the support unit (231) is supported from beneath, wherein a pressure plug (120) is inserted from above into the open end of the open-mouth bag (3) and acts on the bulk material from above, while the support unit (231) is pressed against the bag bottom from beneath.
  14. The method according to the preceding claim, wherein a ramming or jolting compaction is carried out from beneath, and/or wherein rapping or vibrating against the container is carried out from outside and/or from beneath to facilitate pushing out the open-mouth bag.
  15. The method according to any of the two preceding claims, wherein a compaction transmission and/or a short stroke device is activated from beneath or elevated, at least in case that an open-mouth bag jams when the open-mouth bag is pushed upwardly.
EP18727688.6A 2017-05-08 2018-05-08 Compacting station for compacting bulk material in open-mouth bags and method Active EP3621881B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017109873.9A DE102017109873A1 (en) 2017-05-08 2017-05-08 Cleaning device for cleaning a tubular inner wall of a container of bulk material particles
PCT/EP2018/061929 WO2018206607A1 (en) 2017-05-08 2018-05-08 Compaction station for compacting bulk material in open-mouth bags, and method

Publications (2)

Publication Number Publication Date
EP3621881A1 EP3621881A1 (en) 2020-03-18
EP3621881B1 true EP3621881B1 (en) 2021-06-30

Family

ID=62386378

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18727687.8A Active EP3621752B1 (en) 2017-05-08 2018-05-08 Filling machine for filling open mouth bags with bulk material and cleaning device
EP18727688.6A Active EP3621881B1 (en) 2017-05-08 2018-05-08 Compacting station for compacting bulk material in open-mouth bags and method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP18727687.8A Active EP3621752B1 (en) 2017-05-08 2018-05-08 Filling machine for filling open mouth bags with bulk material and cleaning device

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US (2) US11305907B2 (en)
EP (2) EP3621752B1 (en)
CN (2) CN110691654B (en)
CA (2) CA3062235A1 (en)
DE (1) DE102017109873A1 (en)
ES (2) ES2892335T3 (en)
WO (2) WO2018206607A1 (en)

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Also Published As

Publication number Publication date
WO2018206602A1 (en) 2018-11-15
US20210078743A1 (en) 2021-03-18
US11305907B2 (en) 2022-04-19
CN110691654A (en) 2020-01-14
CN110691654B (en) 2022-05-31
US20200062434A1 (en) 2020-02-27
US11273942B2 (en) 2022-03-15
EP3621752A1 (en) 2020-03-18
EP3621752B1 (en) 2021-03-24
ES2877626T3 (en) 2021-11-17
WO2018206607A1 (en) 2018-11-15
ES2892335T3 (en) 2022-02-03
DE102017109873A1 (en) 2018-11-08
CN110770131A (en) 2020-02-07
CA3062520A1 (en) 2019-11-05
CA3062235A1 (en) 2018-11-15
CN110770131B (en) 2022-06-10
EP3621881A1 (en) 2020-03-18

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