EP3247640B1 - Dispositif et procédé pour remplir un emballage ouvert - Google Patents

Dispositif et procédé pour remplir un emballage ouvert Download PDF

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Publication number
EP3247640B1
EP3247640B1 EP16702886.9A EP16702886A EP3247640B1 EP 3247640 B1 EP3247640 B1 EP 3247640B1 EP 16702886 A EP16702886 A EP 16702886A EP 3247640 B1 EP3247640 B1 EP 3247640B1
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EP
European Patent Office
Prior art keywords
poker
compactor
bulk material
suction
vacuum
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
EP16702886.9A
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German (de)
English (en)
Other versions
EP3247640A1 (fr
Inventor
Mark Wehling
Volker SCHÜTTE
Josef Van Bergerem
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 of EP3247640A1 publication Critical patent/EP3247640A1/fr
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    • 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
    • B65B1/22—Reducing volume of filled material by vibration
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/126—Feeding carton blanks in flat or collapsed state
    • 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
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks

Definitions

  • the present invention relates to a packing plant for filling bulk materials in open containers, a compacting device for compacting bulk material in an open container and a method for filling and / or compacting bulk material in an open container.
  • a packing plant for filling bulk materials in open containers
  • a compacting device for compacting bulk material in an open container
  • a method for filling and / or compacting bulk material in an open container is described below with reference to the filling of bulk material in open sacks and the compacting of bulk material in open sacks
  • the invention is not limited to the filling of bulk material in open sacks and the compacting of bulk material in open sacks, but can also be used to fill bulk materials in other open containers or containers such as boxes, buckets or other open containers and to compact there.
  • the DE 864 820 relates to a method and a device of concrete.
  • the composition of the concrete mass can be changed and it can be aspirated liquid or gaseous components from the interior of the mass or introduced into the interior of the mass.
  • a device after the DE 864 820 has a drive shaft with an imbalance mass and the shaft is mounted inside the vibrator.
  • the outer jacket has holes or is formed as a sieve or is covered with a filter.
  • a vibrating device can be introduced into the interior of the mass of the concrete together with an underpressure or overpressure device and at the same time excess liquid and air can be sucked off. It can also be introduced special fasteners in the mass with simultaneous shaking.
  • This document is directed to compacting liquid containing concrete. It is intended to suck off liquid and gaseous components and compact the concrete mass.
  • a fluid such as air can be added to increase the flowability of the bulk material.
  • lighter materials a significant proportion of air is often already present in the bulk material before bottling takes place.
  • the open containers are actively or passively vented during or after the filling in order to reduce the proportion of air in the bulk material.
  • a machine for forming, filling and closing of bags has become known in which a bag is made of a plastic tube and at a filling station, a drop tube of a metering member is inserted into the open-top end of the bag.
  • a screw for transporting the filling material is attached to fill the bag.
  • the downpipe is surrounded by a closure tube.
  • a separate transport system lowers the bag during the filling in such a way that the product outlet opening is always below the filling level.
  • the filter integrated in the closure tube can be sucked off together with the dosing process by the filter integrated in the closure tube, whereby the suction of the air leads to a certain extent to a densification of the bulk material.
  • This effect of product compaction can be enhanced by the additional use of vibration generators or knockers.
  • the top of the funnel is tapped directly from below onto the closure tube. The vibrations are transmitted through the sealing tube and the downpipe into the filling material.
  • a vibrator can also be arranged on the bag bottom support unit and act from below on the bottom of the bag.
  • the known machine has the disadvantage that the transport of the contents via a screw in the Drop pipe requires a relatively large diameter of the metering and only leads to relatively low filling speeds.
  • the lowering of the bag during the filling process also takes time and still requires a considerable amount of equipment.
  • a considerable disadvantage is that the metering tube increases the diameter of the metering, so that only bags with a correspondingly large diameter can be filled at the top.
  • only relatively little energy and only a small amplitude of vibration can be introduced into the medium, so that the effectiveness is limited.
  • vacuum lances which dip during the filling process from above into an open bag and via an applied vacuum air via the lance outer surface suction and dissipate the air inside.
  • vacuum lances increase the filling performance, in particular in the case of light bulk goods, even if the vacuum lance often appears on the outer surface during a filling process. forms a bulk cake, which significantly reduces the effectiveness of the vacuum lance, since outer areas are no longer reached.
  • the filter can become clogged with time.
  • a vibrating bottle has proven to be effective, which is also guided from above through the filler neck into the open bag and which has a rotatably mounted imbalance inside the vibrating bottle, which serves as a vibration generator and causes the vibrating bottle to oscillate during rotation. so that the bulk material surrounding the vibrator is vented.
  • the use of a vibrator bottle is sometimes not particularly effective, perhaps because with such lightweight materials, the vibrator bottle stirs more in the bulk material than effective venting.
  • the known packing machine works satisfactorily, but the cost is high due to the high number of different compression devices and the associated adjustment.
  • For filling particularly lightweight materials and devices and methods have become known in which during filling of bulk materials in flexible bags from the outside pressure is exerted on the bags to produce a high internal pressure, which is due to the high differential pressure to the environment a significantly improved ventilation performance is achieved.
  • a disadvantage of this method is that the filling opening must be sealed pressure-tight and that the process must be done either using a pressure sensor or very carefully to reliably prevent bursting of the flexible bags and pollution associated with the environment.
  • a compression device comprises a compression bottle for compacting bulk material in an open container.
  • the compression bottle has an outer wall and is suitable to be introduced in particular in a filling process with bulk material in an open container to bring the outer wall of the compression bottle in contact with the bulk material and to degas the bulk material in the open container and compact.
  • the outer wall of the compression bottle is at least partially formed by a gas-permeable outer Absaugwandung a suction device and the compression bottle comprises a vibration generator and in particular a rotatably received unbalance device to a possible adhesion of the bulk material by a generated by the vibration generator or the unbalance vibration movement of the compression bottle reduce the Absaugwandung and promote a degassing of the bulk material.
  • the vibration exciter is surrounded radially by a tube device and the suction wall surrounds the tube device at least in sections.
  • the compression bottle has on the front side on a multi-part and separable connector with a passage for the drive shaft.
  • the compacting device according to the invention has many advantages.
  • the compression device according to the invention enables effective filling of bulk materials in open containers and effective degassing of the bulk material. Characterized in that both a suction device and a vibration generator is provided in the compression bottle, adhesion and clogging of the suction of the suction device is considerably reduced and in many cases almost completely avoided. Particles of the bulk material accumulating on the suction wall are directly removed again by the oscillation movement of the vibration generator.
  • the oscillatory movement of the compression bottle leads locally to a displacement of the bulk material located there, so that the gas contained in the bulk material, in particular air, collects in the resulting cavities and can be effectively discharged through the suction device and through the compression bottle.
  • the oscillation movement of the compression bottle can enormously increase the efficiency of the suction device. This is probably due to the fact that clogging of the suction wall is prevented and thus air fractions in the volume can be effectively extracted.
  • a compression movement of the compression bottle is effected.
  • the vibration generator has a circumferential Generated vibration and rotated in particular for vibration generation.
  • the compression bottle is preferably formed substantially rotationally symmetrical and may for example have a substantially cylindrical shape.
  • the vibration generator comprises one or at least one imbalance device or, in particular, is designed as such.
  • the vibration generator and / or the unbalance device is radially surrounded by a tube device.
  • the vibration generator and / or the unbalance device is reliably protected against contact with the bulk material to be filled or compacted. It is not necessary that the unbalance device stirs around in the bulk material to be compacted, but the rotating unbalance device is taken protected by the tube device.
  • the tube device is less permeable to gas than the suction wall executed and in particular configured substantially impermeable to air.
  • the suction wall surrounds the pipe device at least in sections.
  • the suction device surrounds the vibration generator or the unbalance device in the radial direction.
  • the suction wall consists at least partially of an air-permeable filter device.
  • the filter device preferably comprises at least one fine-meshed filter layer, which is protected and / or supported by at least one coarse-meshed filter layer. It is possible that the filter device comprises a stack of a plurality of at least partially different fine-meshed filter layers.
  • a coarser-meshed protective fabric is preferably arranged radially on the outside than further radially inward. It is possible, one To provide a plurality of different fine-mesh filter layers. Particularly preferably, a fine-meshed or the finest-meshed filter layer is protected from the outside by a coarser-meshed filter layer provided with thicker wires. Radially inwardly the filter device is supported by a correspondingly stable support layer or the like.
  • the stitches or individual stitches of individual filter layers can have a square, rectangular, round, oval or other cross-sectional shape.
  • a dimension ratio of length to width of the meshes is less than 10: 1 and in particular less than 5: 1.
  • mesh dimensions are used which are round or square.
  • the filter device replaceable on the tube device.
  • the filter device is supported by the tube device.
  • the tube device fulfills the one hand the purpose of receiving the unbalance device or the vibration exciter within the tube device protected from the bulk material and on the other hand limits the tube means the suction radially inwardly.
  • the suction device connects directly or indirectly axially to the pipe device and / or the vibration generator and / or the unbalance device.
  • the suction device can be located at least partially axially adjacent to the pipe device.
  • the suction device is provided radially around the pipe device. But it is also possible that the suction device partially or completely axially adjacent to the tube device and / or the vibration generator and / or the imbalance device.
  • the compression bottle is designed to be elongated long.
  • a ratio of a length of the compression bottle to a diameter of the compression bottle is preferably greater than 3 and in particular greater than 4.
  • the compression bottle has an outer diameter and in particular a maximum outer diameter less than 65 mm.
  • Outer diameters of the compression bottle of 45 mm or 50 mm or 60 mm are also possible. Small diameters of 60 mm or less pose major challenges to the design since, in addition to the vibration generator or the imbalance device, the suction device also has to be arranged on the compression bottle. If the suction device is then still arranged radially around the vibration generator or the unbalance device, then only a small radial space is available for vibration generation.
  • the vibration generator or the unbalance device is preferably rotatably driven via a drive shaft projecting into the compression bottle at an end face.
  • the front side is located opposite the bottom side of the compression bottle.
  • the drive shaft is preferably rotatably mounted relative to the compression bottle.
  • the drive shaft may be formed in one or more parts.
  • the drive shaft is preferably driven by a motor.
  • the vibration generator is arranged in the interior of the compression bottle.
  • the drive motor can be provided externally, but can also be arranged inside.
  • the vibrator may also include or be designed as a spring-oscillating system.
  • the vibration excitation can be excited electromagnetically in all embodiments.
  • At least one bearing for supporting the drive shaft at an axial end region of the tube device.
  • at least one bearing for supporting the drive shaft is received at both axial end regions of the tube device.
  • additional center bearings are possible. As a result, a high stability is achieved, which is advantageous in the occurring loads.
  • the compression bottle has a connection piece with a passage for the drive shaft and / or on the bottom side a closed bottom cover on the front side. It is also possible that an extraction wall is provided on the bottom side in order to suck gas and in particular air from the bulk material only and / or on the bottom side of the compression bottle.
  • the suction device preferably comprises a vacuum chamber, which is formed in particular substantially by a radial gap between the pipe device and the filter device. In these embodiments, the suction device at least partially surrounds the pipe device.
  • the vacuum chamber via at least one air duct with at least one vacuum connection is connected directly or indirectly.
  • the vacuum connection can in turn be connected directly or indirectly to a switchable vacuum valve.
  • the vacuum connections are arranged on the end face of the compression bottle.
  • the air duct or at least one air duct extends or in particular all air ducts extend at least partially radially outside the bearings.
  • the bearings for storage of the drive shaft are largely protected from dust by the bulk material.
  • the air duct extends at least partially through the pipe device and / or is at least partially formed by the pipe device.
  • a partial section of the air duct can be delimited by a groove in the pipe device.
  • the connector is in particular at least two parts and may also be provided in several parts.
  • the connecting piece then consists of two or more connecting parts, which are particularly preferably connected to one another in such a way that the connecting parts are also (simply) separable from each other again.
  • a first connection part then usually remains in the exchange or maintenance of the compression device on the machine, while the second connection part is removed with the compression bottle to replace parts, check, clean or the like.
  • At the first (and preferably upper) connection part air and / or vacuum connections can be firmly connected. Dismantling the compression bottle thus requires less effort, since the second (and preferably lower) connection part can be removed without loosening the individual hose connections separately - and later again separately - to connect.
  • the vacuum hoses Since the compactor is regularly adjusted in height, the vacuum hoses must be able to compensate for the height flexibly or be mitver Guardian in height.
  • the vacuum hoses are usually laid in a certain way and in particular spirally around the flexible connection hose for the drive shaft in order to avoid rubbing against the filler neck when driving up and down.
  • the first and second connection parts are preferably connected via suitable fastening means (eg screws or the like) connected with each other. At least one seal or two or more seals may be disposed between the fittings to ensure a sufficiently dust and gas tight connection.
  • At least one flexible connecting hose is attached to the connecting piece. It is possible and preferred that at least one vacuum line is arranged in the flexible connection hose.
  • the vacuum line can be formed in the flexible connection hose or guided or formed on the flexible connection hose.
  • the flexible connection hose has an outer wall that is thick at least in places such that a vacuum line is formed in the outer wall. But it is also possible that within the flexible connection hose separate vacuum lines are arranged or guided.
  • a flexible connection hose which extends away from the end face of the compression bottle, offers the advantage, for example, that no bulk material or only a small amount of bulk material deposits on the front side of the compression bottle, which could fall off the compression bottle after removal and pollute the environment ,
  • At least one vacuum channel extending in a longitudinal direction of the drive shaft extends inside the drive shaft.
  • the vacuum channel in the interior of the drive shaft is used in particular for supplying the suction device with negative pressure. It is possible that only through the vacuum channel in the interior of the drive shaft vacuum is provided. It is also possible that a vacuum channel inside the drive shaft and a vacuum line outside the drive shaft serve for vacuum supply.
  • a vacuum channel is provided in the interior of the drive shaft, then preferably at least one transverse channel is provided.
  • connection channel is then preferably in fluid communication with a connection channel of the compression bottle via the transverse channel.
  • a connection channel may be formed as an annular space which extends annularly in the region of the transverse channel around the drive shaft.
  • the transverse channel may, for example, be designed as a bore which extends from the outer surface of the drive shaft to the vacuum channel in the interior of the connection axis. Thereby, a flow connection is made from the vacuum channel inside the drive shaft to the outside of the drive shaft.
  • the transverse channel may be oriented perpendicular to the longitudinal axis of the drive shaft or at an angle thereto.
  • connection channel connects the vacuum channel with the air duct at least temporarily. If the connection channel does not extend completely annularly around the drive shaft, then during the rotation of the drive shaft, the connection channel is not constantly supplied with vacuum, but only when the transverse channel establishes a flow connection to the connection channel.
  • the air volumes in the interior of the drive shaft and on the suction device are dimensioned such that even a periodic production of a vacuum connection is sufficient for the function.
  • a vacuum generator is a vacuum generator.
  • connection channel is sealed off from the drive shaft via at least one seal on at least one axial side.
  • connection channel is sealed on both axial sides via at least one seal with respect to the drive shaft.
  • a packing installation comprises at least one open container to be filled with a bulk material and at least one packing machine with at least one filling nozzle for filling open containers with bulk material.
  • a packing machine comprises at least one compression device with a compression bottle, which can be inserted in particular from above into the open container.
  • the compression bottle comprises an outer wall and is adapted to be inserted into an open container to bring the outer wall into contact with the bulk material and to degas and densify the bulk material in the open container.
  • the outer wall of the compression bottle is at least partially through a gas-permeable outer Absaugwandung a Extraction device formed and the compression bottle comprises a vibration generator and / or a rotatably received unbalance device to promote a degassing of the bulk material by a generated by the vibration generator or the unbalance vibration movement of the compression bottle.
  • a possible adhesion of the bulk material to the suction wall is reduced.
  • another vibration generator may be provided inside the compression bottle.
  • the vibration exciter is surrounded radially by a tube device and the suction wall preferably surrounds the tube device at least in sections.
  • the compression bottle has on the front side on a multi-part and separable connector with a passage for the drive shaft.
  • the packing system according to the invention also has many advantages, since it allows effective filling and venting of bottled bulk material.
  • a filler neck may be associated with a pressure sensor and / or a level sensor to control the filling operation in response to sensor data.
  • the packing installation or the packaging machine of the packing installation may in particular comprise a compaction device as described above.
  • each filling nozzle or at least one filler neck of the packing system is assigned a filling member.
  • a filling turbine is used as filling member. Possible is z.
  • the promotion of gravity or the use of a Heilllorgans in which the bulk material is fluidized by targeted air supply and supported by gravity supported.
  • the selection of the filling member is preferably carried out depending on the product to be filled.
  • the inventive method is used to fill an open container with at least one bulk material in a filling process and / or for degassing of bulk material in an open container, which is filled before or while in the open container.
  • a compression bottle of a previously described compression device is introduced into the open container to degas the bulk material in the open container and compact.
  • a particularly radially surrounded by a tube means vibration generator or vibrator (in particular on or in) the compression bottle is vibrated or an unbalance device to the compression bottle in rotation and it is with a suction gas to the compression bottle via a particular tube device at least Aspirated in sections surrounding gas-permeable outer Absaugwandung as part of the outer wall of the bulk material in order to promote a degassing of the bulk material by a vibration generated by the vibration generator in the interior of the compression bottle of the vibrating compacting bottle.
  • the unbalance device can serve as vibration exciter.
  • the method according to the invention also has many advantages, since it enables effective filling and / or compression of bulk material in an open container.
  • the formation of a bulk cake is reliably prevented by the compression bottle is placed in a vibrational motion.
  • the compression bottle is introduced into the open container at the beginning of the filling process. It is possible that the compression bottle is introduced into the open container before or after the beginning of the filling of bulk material.
  • the compression bottle can also be operated during the filling process, whereby a particularly effective filling is achieved.
  • the compression bottle is height adjustable.
  • the compression bottle is inserted through the filler neck into the container.
  • the compression bottle is at the beginning of the filling process or in an initial section from above lowered through the filler neck into the container and in particular an open bag. At the end of the filling process, the compression bottle is moved up again.
  • a length of the compression bottle is shorter than a length of the container.
  • a ratio of the length of the container to a length of the compression bottle is greater than 1.5 and preferably greater than 2.0.
  • gas is preferably extracted from the bulk material with the suction device only when a level of the bulk material in the container covers the extraction wall at least substantially completely and in particular completely.
  • This has the advantage that substantially no ambient air is sucked out.
  • the extraction is activated only when the level is high enough.
  • the unbalance device is at least partially simultaneously rotated on the compression bottle and it is at the compression bottle sucked the bulk gas and in particular air. But it is also possible that at least partially offset only the unbalance device on the compression bottle in rotation or is sucked off only at the compression bottle from the bulk gas.
  • the compression bottle is at least partially inactive.
  • a gas pulse is applied to the suction device.
  • air can be blown out of the interior of the suction device to the outside.
  • the vacuum is only turned off, so that essentially no air escapes from the suction device to the outside.
  • a gas pulse or by switching off the vacuum the detachment of a still formed filter cake on the filter device of the suction device can be better effected.
  • such a gas pulse can be output at regular intervals.
  • individual fine particles can be removed from the filter fabric of the filter device, so this retains its full ventilation performance.
  • the invention provides a compacting device and a packing system equipped therewith as well as a method which makes more effective filling of bulk goods in open containers and in particular open bags possible. Due to the oscillatory motion of the imbalance device, a better compaction effect is achieved, in particular for lighter products of less than 0.5 kg / dm 3 and for particularly light products of less than 0.3 kg / dm 3 .
  • the vibration delays or completely prevents the formation of a filter cake on the filter device. As a result, the penetration depth of the vacuum increases, so that the suction effect is increased.
  • the vibration generator and in particular the unbalance device densify the bulk material rotationally circulating.
  • the oscillation increases the sphere of activity.
  • the circumferential oscillatory movement leads in particular to a tumbling movement of the compression bottle.
  • the compression bottle does not rotate about its longitudinal axis.
  • the invention further has the advantage that a first variety of products to be processed, the radius of action of the compression bottle is significantly increased by the suction.
  • the applied vacuum in this type of product or this type of product creates an adherent bulk material which increases the effective diameter of the compression bottle.
  • the compression bottle has only a relatively small outer diameter, the applied vacuum in many fine products therefore results in a larger effective diameter of the compression bottle.
  • the degassing are reinforced by the compression bottle and increases the effectiveness.
  • the suction device can be ventilated with atmosphere or overpressure. As a result, a breakage of the bulk material cake of this first product type is effected under the action of the oscillations of the vibrator. New product then passes to the filter device and is effectively compacted.
  • the suction leads to a brittle filter cake from adhering bulk material, which breaks up again and again, so that there increases the Einwirk Scheme the compression bottle.
  • FIG. 1 a packing system 100 according to the invention is shown in a highly schematic plan view.
  • the packing plant includes a packing machine 50, with the bulk goods in open Container and filled here in open bags.
  • the packing machine 50 is rotatable and has distributed over its circumference a plurality of filling nozzles 51 (see FIG. 2 ) on.
  • At the packaging machine 50 shown here can be provided between about two and sixteen filler neck 51.
  • a packing installation 100 according to the invention can also be designed as a fixed one-filler neck packing machine.
  • the rotating packaging machine 50 is here continuously operated in rotation, so that the filler neck 51 rotate at a substantially constant speed about a central axis.
  • the rotational speed depends in particular on the product to be filled and on its compression ratio.
  • the bulk material to be filled is introduced via a feed hopper into a silo 52 of the packing machine 50. From there, the bulk material passes by gravity into the Vorsilos 58 of the individual filler 51st
  • a container feeder 101 For supplying the open container 4 to be filled, a container feeder 101 is provided in which the containers to be filled can optionally also be made, for example, from a tubular film.
  • a transfer device 102 By means of a transfer device 102, the packs to be filled are transferred to the packaging machine 50 and are attached there in a substantially dust-tight manner after or during the transfer to the filling nozzles 51 in order to avoid soiling of the surroundings during the filling process.
  • the packing machine 50 in the embodiment according to FIG. 1 rotates counterclockwise.
  • the packing machine 50 is suspended on a carrier 53 and can be protected by the marked protective fence from the outside to exclude accidents.
  • the open container 4 are removed by the take-off device 103 and transferred to the processing device 104, where appropriate, a re-densification and the open containers regularly be closed. This is done by a closing device 105, in which open sacks are closed as open containers 4 with a closing seam at the filling end.
  • weight control and / or visual inspection of the filled containers 4 may be carried out on the processing device 104. Finally, the filled containers 4 are removed.
  • FIG. 2 shows a highly schematic cross section through the packing machine 50 of the packing system 100 after FIG. 1 ,
  • the packing machine 50 rotates about the central axis and is suspended on the carrier 53.
  • the silo 52 can be seen by the curved line, the level of the bulk material in the silo 52. Due to the intermediate storage of the bulk material to be filled in the silo 52, a pre-venting can take place so that the bulk material actually entering the container regularly has the same or similar properties.
  • each silos associated Vorsilos 58 Due to gravity, the bulk material passes into the each silos associated Vorsilos 58.
  • filling members 54 which are preferably designed as a filling turbine and serve for the defined promotion of the bulk material through the filler neck 51 into the open container 4 into it ,
  • a weighing of the bulk material to be filled and / or the filled bulk material takes place.
  • a weighing in the net process can take place, wherein initially the bulk material to be filled is filled into a preliminary container and weighed there. After reaching the weight to be filled, the bulk material in the hopper is filled into the open container 4.
  • Preference is also the filling in the gross method, in which the container to be filled is weighed during the filling process to ensure a precisely metered filling.
  • a gross weighing method is in FIG. 2 shown, in which the filler neck is weighed together with the attached components and the container 4 during the filling. In this case, the known weight of the filler neck and the other components of the measured with the balance 56 Weight deducted, so as to calculate back to the amount of the filled bulk material 3.
  • control devices 57 are used, which may be associated with each individual filler neck 51, for example. It is also possible that a control device is used for a plurality of filler neck.
  • the packaging machine 50 comprises a compression device 1 for each filler neck 51.
  • the compression devices 1 each have a drive motor 49 and a compression bottle 2.
  • the compression bottle 2 is introduced after attaching a container 4 to the filler neck 51 from above through the filler neck 51 into the container 4 to compress there bottled bulk material. After the end of the filling process and before the removal of a container 4, the compression bottle 2 is pulled up again from the container 4 at least to the filler neck 51, to allow easy removal of the filled container 4.
  • the compression device 1 is used during the filling process and comprises in the compression bottle an unbalance device 8 shown in more detail in the following figures and a suction device 6 in order to compact the bulk material 3 in the container 4.
  • a length 13 of the compression bottle 2 is here less than about half as long as a length of the container 4.
  • the compression bottle 2 is lowered at the beginning of the filling process almost to the bottom of the container. If the Absaugwandung 7 (between the horizontal dashed lines) is substantially completely covered with bulk material 3, the suction is activated and it is sucked air from the bulk material.
  • the compression bottle 2 is moved continuously or stepwise upward, so that in each case the freshly filled product can be optimally compressed.
  • a floor vibrator 59 may be provided be that applies vibration to the bottom of the container 4.
  • a fill level sensor 55 which detects the fill level of the bulk material 3 in the bundle 4.
  • FIG. 3 shows a schematic perspective view of the compression bottle 2 of the compression device 1.
  • the compression bottle 2 has an end face 16 and a bottom side 17. At the end face 16 protrudes from the compression bottle 2, the drive shaft 18 out.
  • the drive shaft 18 is rotatably mounted in the interior of the compression bottle 2.
  • At the end face 16 there is a connecting piece 23 to which a plurality of vacuum ports 30, etc. are attached, in order to supply the suction device 6 of the compression bottle 2 with the required negative pressure.
  • the suction device 6 is held by the tube device 9 and comprises a filter device 10 which forms an air-permeable suction wall 7, which is part of the outer wall 5 of the compression bottle 2.
  • At the bottom side 17 of the interior of the compression bottle 2 is closed by a bottom cover 25.
  • the bottom cover 25 is here executed airtight, but may also be provided with a filter device so as to suck on the bottom side 17 of the compression bottle 2 air from the container 4.
  • the compression bottle 2 has a length 13 which is considerably larger than a typical and in particular maximum diameter 14 of the compression bottle 2.
  • a ratio of the length 13 to the diameter 14 is preferably greater than 3 and in particular greater than 3.5 or 4.
  • an outer diameter of the compression bottle 2 depends on the intended use. To fill typical open sacks, the outer diameter 14 must be so small that the compression bottle 2 can be guided from above through the filler neck into the container 4 to be filled. Therefore, the outer diameter 14 is preferably chosen smaller than 75 mm and in particular smaller than 60 mm. In advantageous embodiments, an outer diameter of 60 mm was chosen.
  • the Length 13 can be 200 mm, 230 mm or more.
  • FIG. 4 shows a schematic front view of the compression bottle 2 after FIG. 3 , wherein the three vacuum ports 30, 31 and 32 are clearly visible on the end face 16 on the connecting piece 23.
  • FIG. 5 is a perspective view of the connector 23 is shown, wherein the passage 24 for the passage of the drive shaft 18 is visible.
  • the vacuum connections are shown here without hose connections.
  • the connecting piece 23 has an external thread 39, with which the connecting piece 23 is screwed into the pipe device 9.
  • the thread 39 In order to ensure the vacuum supply in the interior of the compression bottle 2, are located on the outside of the thread 39 here distributed over the circumference arranged axial grooves 40, via which the vacuum of the connection points 30, 31 and 32 can be continued.
  • FIG. 6 shows the drive shaft 18 in a perspective view, wherein the imbalance weight 38 of the imbalance device 8 can be seen.
  • the unbalance device 8 serves as a vibration exciter 48 and ensures a vibration excitation generated in the interior of the compression bottle 2, whereby a particularly effective effect of the compression bottle 2 and thus the compression device 1 can be achieved.
  • the oscillatory movements of the compression bottle 2 are defined so precisely and depend little on external circumstances. If, on the other hand, the unbalance device were to be generated outside the compression bottle 2, for example at the upper end of the compression device 1 on the drive motor 49, the oscillation amplitude of the compression bottle 2 would depend very much on external circumstances. For a lighter bulk material, this could lead to undesirably large vibration fluctuations, since the distance between the drive motor 49 and the compression bottle 2 in a light bulk material only to a low attenuation of Vibrational motion leads.
  • the oscillatory motion is generated locally where it is needed, namely within the compression bottle, so that the oscillatory motion is considerably less dependent on external circumstances and thus more defined.
  • the imbalance mass By choosing the imbalance mass, the amplitude can be changed, by the number of drives the frequency.
  • an optimized to the product to be filled adjustment of the compression bottle can be done.
  • the oscillation excitation takes place within the compression bottle and here within the suction device, which surrounds the unbalance device 8 radially.
  • FIG. 7 shows a schematic cross section through the compression bottle 2 of the compression device 1.
  • the body of the compression bottle 2 is formed by the connector 23, the tube device 9 and the bottom cover 25.
  • the bottom lid can - as shown in the right half of the figure - at the end of an (almost) rectangular cross-section.
  • the bottom lid has a rounded end portion 25a.
  • a radius at the end can z. B. 3 mm, 5 mm or even 10 mm. In this way, damage to the bag wall and the filler neck can be avoided.
  • the filter device 10 of the suction device 6 is held.
  • the drive shaft 18 is rotatably supported via a bearing 21 at the axial end region 19 in the vicinity of the end face 16.
  • a bearing 22 for supporting the drive shaft 18 is inserted in the end region 20.
  • the filter device 10 here consists of several filter layers 11 wherein one of the filter layers or a separate support layer for supporting the filter device 10 may serve.
  • FIG. 8 shows the enlarged detail "D" FIG. 7 In order to better represent the flow of the extracted air and the individual components.
  • a seal 41 is provided.
  • the extracted air is transported along the flow arrow 15 to the associated vacuum port.
  • the extracted air initially flows through the air channel 28.
  • the air channel 28 is inserted through the groove 40 in the connecting piece 23 (cf. FIG. 5 ) and bounded by the tube device 9.
  • Fig. 13 shows a variant of the connecting piece 23 of the compression bottle 2 from FIG. 7 , wherein the connecting piece 23 is made of several parts and here two parts and consists essentially of the first connection part 23a and the second connection part 23b.
  • the first connection part 23a remains on the packaging machine, while the second connection part 23b is removed together with the compression bottle 2.
  • the vacuum hoses can remain on the vacuum connections 30 etc. and do not have to be disassembled in a relatively expensive manner and be reassembled afterwards, especially because a special hose guide has to be considered.
  • the vacuum ports 30 to 32 are here again preferably each a separate component, which are clamped in the connection of the connecting parts 23 a and 23 b at an undercut of the first connecting part 23 a.
  • the two connecting parts 23 a and 23 b are connected to each other via suitable connecting means 46 such. B. screws connected.
  • Suitable connections 44 are preferably provided between the connection parts.
  • a mating seal 44 is also provided between the vacuum port 30 and the first connector 23a.
  • the connecting piece 23 has a thread 39, with which it is screwed to a mating thread of the pipe device 9.
  • the sealing of the connecting piece 23 in total to the tube device 9 preferably also takes place via suitable seals 44.
  • an external thread 45 is formed to connect there a shell of a drive shaft.
  • FIG. 9 shows a schematic cross section through the tube device 9, wherein the internal thread 37 can be seen in the tube device 9.
  • the external thread 39 of the connector 23 is screwed.
  • the air channel 28 can be seen, via which the sucked air from the space or vacuum space 26 is passed on.
  • a free diameter 43 results, in which the unbalance device 8 can rotate to generate vibration.
  • FIG. 10 shows a front view of the pipe device 9, in which the air channels 28 are visible.
  • the FIG. 7 shows.
  • FIG. 11 shows a further embodiment of the compression device 1, wherein on the connecting piece 23 of the end face 16, a connecting tube 33 is attached.
  • the vacuum supply takes place here through a vacuum channel 29 in the interior of the drive shaft 18.
  • the drive shaft 18 is formed in several parts.
  • the vacuum channel 29 opens into at least one transverse channel 35, which extends radially from the vacuum channel 29 to the outside.
  • the transverse channel 35 can be generated for example by a transverse bore in the drive shaft 18.
  • a connecting channel 36 is provided annularly around the drive shaft 18 in the region of the transverse channel 35, which connects the vacuum channel 29 with the air channel 28, so that vacuum applied to the vacuum channel 29 via the transverse channel 35 and the connecting channel 36 and the air channel 28 in the vacuum chamber 26 continues.
  • the connecting channel 36 is sealed on both axial sides by a seal 41 and 42, respectively, to protect the bearing 21 from dust.
  • FIG. 12 shows an alternative embodiment in which the vacuum supply is not centrally through the drive shaft, but outside it.
  • the compression device 1 can basically the structure of the compression device FIG. 7 have, wherein on the connecting piece 23 on the end face 16, a connection hose 33 is mounted to ensure the vacuum supply.
  • connection tube 33 has in the wall of the connecting tube 33 arranged or formed vacuum lines 34, which serve for vacuum supply.
  • the vacuum lines 34 may also be attached to the inner wall of the connecting tube 33 or located in the interior of the connecting tube 33, preferably before frictional contact with the rotating drive shaft 18 are protected.
  • the vacuum lines 34 are connected directly to the air channels 28, so that the vacuum chamber 26 of the suction device 6 can be sufficiently supplied with vacuum.
  • the air ducts 28 extend radially outside the bearings 21, so that the region of the bearings 21 is reliably protected against the action of dust.
  • the air channels 28 may extend at least in sections through the tube device.
  • the invention provides an advantageous compacting device 1 and an advantageous packing system 100 equipped therewith, thus enabling effective filling of open containers with bulk goods and effective compacting of the bulk goods in the containers. Due to the vibration excitation within the compression bottle, the filter device 10 is acted upon by such a vibration that the formation of a filter cake can be largely prevented even with fine bulk materials. As a result, the number of required air blasts on the filter device can be significantly reduced from the inside, whereby the effectiveness increases.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Claims (15)

  1. Dispositif de compactage (1) comprenant une bouteille de compactage (2) pour compacter du produit en vrac (3) dans un sac ouvert (4), ladite bouteille de compactage (2) comprenant une paroi extérieure (5) et étant apte à être insérée dans un sac ouvert (4) afin de mettre la paroi extérieure (5) de la bouteille de compactage (2) en contact avec le produit en vrac (3) et de dégazer et compacter le produit en vrac (3) dans le sac ouvert (4),
    caractérisé par le fait
    que la paroi extérieure (5) de la bouteille de compactage (2) est formée, au moins en partie, par une paroi d'aspiration extérieure (7) perméable aux gaz d'un dispositif d'aspiration (6) et la bouteille de compactage (2) comprend un excitateur de vibrations (48) afin de favoriser par une vibration de la bouteille de compactage (2), qui est générée par ledit excitateur de vibrations (48), un dégazage du produit en vrac (3), et que l'excitateur de vibrations (48) est entouré radialement par un dispositif tubulaire (9) et que la paroi d'aspiration (7) entoure au moins par sections ledit dispositif tubulaire (9), et que la bouteille de compactage (2) présente sur la face frontale (16) une pièce de raccordement (23) en plusieurs parties et séparable qui comprend un passage (24) pour l'arbre d'entraînement (18) de la bouteille de compactage (2).
  2. Dispositif de compactage (1) selon la revendication 1, dans lequel l'excitateur de vibrations (48) comprend au moins un dispositif de balourd (8) reçu de manière à pouvoir tourner.
  3. Dispositif de compactage (1) selon l'une quelconque des revendications précédentes, dans lequel la paroi d'aspiration (7) est constituée au moins en partie par un dispositif de filtrage (10) perméable à l'air.
  4. Dispositif de compactage (1) selon la revendication précédente, dans lequel ledit dispositif de filtrage (10) est supporté de manière échangeable par le dispositif tubulaire (9).
  5. Dispositif de compactage (1) selon l'une quelconque des revendications précédentes, dans lequel le dispositif d'aspiration (6) se raccorde directement ou indirectement axialement au dispositif tubulaire (9) et/ou à l'excitateur de vibrations (48).
  6. Dispositif de compactage (1) selon l'une quelconque des revendications précédentes, dans lequel la bouteille de compactage (2) est conçue de manière allongée, et dans lequel un rapport d'une longueur (13) à un diamètre (14) de la bouteille de compactage (2) est supérieur à 3 et en particulier supérieur à 4.
  7. Dispositif de compactage (1) selon l'une quelconque des revendications précédentes, dans lequel sur au moins une zone d'extrémité axiale (19, 20) du dispositif tubulaire (9) est reçu au moins un palier (21, 22) destiné à supporter l'arbre d'entraînement (18).
  8. Dispositif de compactage (1) selon l'une quelconque des revendications précédentes, dans lequel la bouteille de compactage (2) présente un couvercle de fond (25) sur le côté de fond (17).
  9. Dispositif de compactage (1) selon la revendication 7, dans lequel le dispositif d'aspiration (6) comprend un espace de dépression (26) qui est formé pour l'essentiel par un intervalle radial situé entre le dispositif tubulaire (9) et le dispositif de filtrage (10), et dans lequel, de préférence, ledit espace de dépression (26) est relié à au moins un raccord de vide (30-32) par au moins un canal à air (28), et dans lequel le canal à air (28) s'étend de préférence au moins en partie radialement à l'extérieur des paliers (21, 22), et/ou dans lequel ledit canal à air (28) s'étend au moins en partie à travers le dispositif tubulaire (9).
  10. Dispositif de compactage (1) selon l'une quelconque des revendications précédentes, dans lequel au moins un tuyau flexible de raccordement (33) souple est fixé à ladite pièce de raccordement (23), et dans lequel, en particulier, au moins une conduite à vide (34) est agencée dans le tuyau flexible de connexion (33) souple.
  11. Dispositif de compactage (1) selon l'une quelconque des revendications précédentes, dans lequel au moins un canal à vide (29) s'étendant dans une direction longitudinale (27) de l'arbre d'entraînement (18) est agencé à l'intérieur de l'arbre d'entraînement (18) afin d'alimenter en dépression le dispositif d'aspiration (6), et dans lequel, de préférence, ledit canal à vide (29) est en communication fluidique, via au moins un canal transversal (35), avec un canal de raccordement (36) de la bouteille de compactage (2), et dans lequel, en particulier sur au moins un côté axial, le canal de raccordement (36) est rendu étanche par rapport à l'arbre d'entraînement (18) par le biais d'un joint d'étanchéité (41, 42).
  12. Installation d'emballage (100) comprenant au moins un sac ouvert (4) à remplir d'un produit en vrac (3) et au moins une emballeuse (50) comprenant au moins une tubulure de remplissage (51) destinée à remplir des sacs ouverts (4) de produit en vrac (3), dans lequel un dispositif de compactage (1) comprenant une bouteille de compactage (2) apte à être insérée dans le sac ouvert (4) est prévu, ladite bouteille de compactage (2) comprenant une paroi extérieure (5) et étant apte à être insérée dans un sac ouvert (4) afin de mettre la paroi extérieure (5) en contact avec le produit en vrac (3) et de dégazer et compacter le produit en vrac (3) dans le sac ouvert (4),
    caractérisée par le fait
    que la paroi extérieure (5) de la bouteille de compactage (2) est formée, au moins en partie, par une paroi d'aspiration extérieure (7) perméable aux gaz d'un dispositif d'aspiration (6) et la bouteille de compactage (2) comprend un excitateur de vibrations (48) afin de favoriser par un mouvement vibratoire de la bouteille de compactage (2), qui est généré par ledit excitateur de vibrations (48), un dégazage du produit en vrac (3), et que l'excitateur de vibrations (48) est entouré radialement par un dispositif tubulaire (9) et que la paroi d'aspiration (7) entoure au moins par sections ledit dispositif tubulaire (9), et que la bouteille de compactage (2) présente sur la face frontale (16) une pièce de raccordement (23) en plusieurs parties et séparable qui comprend un passage (24) pour l'arbre d'entraînement (18) de la bouteille de compactage (2).
  13. Installation d'emballage selon la revendication précédente, dans laquelle à ladite tubulure de remplissage (51) est associé un capteur de pression (47) et/ou un capteur de niveau (55) et/ou dans laquelle la bouteille de compactage est réglable en hauteur et peut être insérée à travers la tubulure de remplissage dans le récipient.
  14. Procédé destiné à remplir un sac ouvert (4) d'au moins un produit en vrac (3) lors d'une opération de remplissage, dans lequel une quantité de produit en vrac est versée dans le sac ouvert (4) et une bouteille de compactage (2) d'un dispositif de compactage (1) selon l'une quelconque des revendications précédentes 1 à 11 est insérée dans le sac ouvert (4) pour dégazer et compacter le produit en vrac (3) dans le sac ouvert (4),
    caractérisé par le fait
    que l'excitateur de vibrations (48) de la bouteille de compactage (2) qui est entouré radialement par le dispositif tubulaire (9) est mis en vibrations, et du gaz est éliminé par aspiration du produit en vrac, au moyen du dispositif d'aspiration (6) au niveau de la bouteille de compactage (2), via la paroi d'aspiration extérieure (7) en tant que partie de la paroi extérieure (5), qui est perméable aux gaz et entoure au moins par sections le dispositif tubulaire (9), afin de favoriser un dégazage du produit en vrac (3) au moyen d'un mouvement vibratoire de la bouteille de compactage (2) généré par l'excitateur de vibrations (48).
  15. Procédé selon la revendication précédente, dans lequel la bouteille de compactage (2) est insérée au début de l'opération de remplissage dans le sac ouvert (4),
    et/ou dans lequel, au moins par sections, l'excitateur de vibrations (48) est mis en vibrations sur la bouteille de compactage (2) et, en même temps, du gaz est éliminé par aspiration du produit en vrac (3) sur la bouteille de compactage (2) et/ou dans lequel, au moins par sections, seulement l'excitateur de vibrations (48) est mis en vibrations sur la bouteille de compactage (2) et du gaz est éliminé par aspiration du produit en vrac (3) sur la bouteille de compactage (2) et/ou dans lequel la bouteille de compactage (2) est inactive au moins par sections
    et/ou dans lequel, à certains moments, une impulsion de gaz est appliquée au dispositif d'aspiration (6)
    et/ou dans lequel une position de la bouteille de compactage (2) par rapport au sac (4) est modifiée à plusieurs reprises pour un dégazage efficace et/ou dans lequel du gaz n'est aspiré au moyen du dispositif d'aspiration (6) que lorsqu'un niveau de remplissage du produit en vrac dans le sac recouvre pour l'essentiel complètement la paroi d'aspiration (7).
EP16702886.9A 2015-01-20 2016-01-19 Dispositif et procédé pour remplir un emballage ouvert Active EP3247640B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015100779.7A DE102015100779A1 (de) 2015-01-20 2015-01-20 Vorrichtung und Verfahren zum Füllen eines offenen Gebindes
PCT/EP2016/050982 WO2016116427A1 (fr) 2015-01-20 2016-01-19 Dispositif et procédé pour remplir un emballage ouvert

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EP3247640B1 true EP3247640B1 (fr) 2019-10-23

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EP (1) EP3247640B1 (fr)
CN (1) CN107406152B (fr)
BR (1) BR112017015558B1 (fr)
CA (1) CA2974226C (fr)
DE (1) DE102015100779A1 (fr)
EA (1) EA035476B1 (fr)
ES (1) ES2763439T3 (fr)
WO (1) WO2016116427A1 (fr)

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US10960994B2 (en) * 2017-02-17 2021-03-30 Frito-Lay North America, Inc. Apparatus and methods of packaging particulates for settling
US10696502B2 (en) * 2017-05-09 2020-06-30 William E HODGE Method and apparatus to reduce volume occupied by dry particulate commodities during transportation or storage
DE102017111806A1 (de) 2017-05-30 2018-12-06 Haver & Boecker Ohg Vorrichtung und Verfahren zum Verdichten von mit Schüttgütern gefüllten Gebinden
CN113275575B (zh) * 2021-03-05 2021-11-02 芜湖映日科技股份有限公司 一种管型靶材的生产方法
CN113493024B (zh) * 2021-08-02 2022-04-08 安徽寒锐新材料有限公司 一种钴粉生产过程中的分装装置以及钴粉制备装置
CN116280484A (zh) * 2022-12-31 2023-06-23 南通玉兔集团有限公司 一种肉松生产用具有防偏移机构的压罐装置
CN117262297B (zh) * 2023-11-22 2024-01-30 山东东源新材料科技有限公司 一种脱硫脱硝催化剂分装装置及分装方法

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Publication number Publication date
CN107406152A (zh) 2017-11-28
CA2974226C (fr) 2022-04-12
BR112017015558B1 (pt) 2022-04-05
CN107406152B (zh) 2019-12-06
BR112017015558A2 (pt) 2018-03-13
DE102015100779A1 (de) 2016-07-21
US20180009552A1 (en) 2018-01-11
ES2763439T3 (es) 2020-05-28
EP3247640A1 (fr) 2017-11-29
CA2974226A1 (fr) 2016-07-28
EA201700312A1 (ru) 2018-01-31
WO2016116427A1 (fr) 2016-07-28
EA035476B1 (ru) 2020-06-23
US10661921B2 (en) 2020-05-26

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