EP3010812A1 - Machine d'emballage et procédé - Google Patents

Machine d'emballage et procédé

Info

Publication number
EP3010812A1
EP3010812A1 EP14736659.5A EP14736659A EP3010812A1 EP 3010812 A1 EP3010812 A1 EP 3010812A1 EP 14736659 A EP14736659 A EP 14736659A EP 3010812 A1 EP3010812 A1 EP 3010812A1
Authority
EP
European Patent Office
Prior art keywords
product
filling
collecting container
packing machine
filler neck
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.)
Granted
Application number
EP14736659.5A
Other languages
German (de)
English (en)
Other versions
EP3010812B1 (fr
Inventor
Uwe Breulmann
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
Original Assignee
Haver and Boecker OHG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Haver and Boecker OHG filed Critical Haver and Boecker OHG
Publication of EP3010812A1 publication Critical patent/EP3010812A1/fr
Application granted granted Critical
Publication of EP3010812B1 publication Critical patent/EP3010812B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B65B1/32—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by weighing
    • 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
    • B65B1/28—Controlling escape of air or dust from containers or receptacles during filling
    • 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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/007—Guides or funnels for introducing articles into containers or wrappers

Definitions

  • the present invention relates to a packing machine and a method for filling dusty products such as bulk goods in open sacks.
  • packing machines can be supplied with prefabricated open sacks or the open sacks are produced continuously or discontinuously in the packing machine itself or in an upstream device.
  • Packing machines, in which open sacks are formed from tubular films, are also called Form-Fill-Seal (FFS) systems.
  • FFS Form-Fill-Seal
  • the bulk material to be filled is taken from a product supply and introduced through a filler neck into the open sack which is attached for filling.
  • air escapes from the open bag to be filled, whereby dusty product is also entrained.
  • a suction takes place, wherein the extracted air is supplied to a dust filter.
  • dust filters usually consist of depth filters, in which often multi-layered fiber filters are arranged one above the other. If the bulk material to be filled is changed in such packing machines, then different material accumulates in the depth filter, so that no clean-sorted material is recovered when cleaning the dust filter, but a mixed product, which must be discarded.
  • EP 1 368 231 B1 discloses a bagging plant for filling dusty bulk goods in bags formed from tubular film, in which air sucked out of the surroundings of the filling funnel first passes through a suction line is transported and fed to a separator.
  • the separator has a cyclone. That with the
  • Separator separated product is returned to the product container.
  • the extracted air is fed to the dust filter.
  • the load of the dust filter is reduced and the
  • a disadvantage of such a device is that constantly large amounts of ambient air from the environment of the hopper must be extracted. This requires a high energy requirement. In addition, the equipment required is large, since large amounts of exhaust air must be processed.
  • the packing machine according to the invention is used for filling dusty products such as bulk materials in open sacks by means of at least one filling operation.
  • the packing machine comprises a control device and a weighing device for weight-dependent control of the filling process. It is a product supply and at least one metering z. B. provided for conveying the product. The product passes through a filler neck in the prepared for the filling process or appended offensive bag.
  • the filler neck is connected to a collecting container via at least one such flow connection, that a pressure surge occurring during a filling operation is used for the transfer of at least part of a introduced into the open bag and dusting product comprising displacement air into the sump to in the sump in a filling process out of the open bag displaced and the dusty Take product contained displacement air and calm and deposit a dust content of the displacement air at least partially in the collection container as a deposited product.
  • the packing machine according to the invention has many advantages. A considerable advantage of the packing machine according to the invention is that the expenditure on equipment can be reduced. Optionally, no dedusting is necessary because the displaced from the open bag during the filling air flows into a collecting container, where the displacement air can calm, so that the
  • Dust or the dusty entrained product can store in the sump. As a result, a recovery of the entrained dusty product is made possible in a simple manner without special equipment expense. If necessary, the sump can be emptied to allow recovery of the dusting product.
  • the displacement air passes in particular passively and preferably substantially without and particularly preferably without any further use of energy into the collecting container, where a substantial part of the dust content in the displacement air settles and settles.
  • the displacement air is transported via the pressure surge generated during the filling process.
  • the escaping displacement air is passively pumped into the collecting space, where the dust content can settle.
  • the sump has a flow opening or channel to the environment.
  • the displacement air entering the collecting container from the open sack can displace the air present there to the outside.
  • a dust filter or the like may be provided at the flow opening to the environment.
  • the sump could be formed by at least one upwardly extending tube.
  • the tube could be provided with a controllable closure, which optionally supplies the settled product directly to the open mouth to be filled at a lower engine power or z.
  • the reservoir extends annularly in particular around the upper part of the filler neck completely or partially around.
  • the collection container with a
  • downstream product conveyor connected to the in the
  • the collecting container is connected to the downstream product conveyor via at least one line.
  • the sump is disposed between the filler neck and a product conveyor.
  • an intermediate container is provided.
  • the metering device preferably conveys the product from the product supply into the intermediate container.
  • the intermediate container is preferably equipped with a controllable closure unit.
  • the intermediate container is a filler neck
  • the product received in the intermediate container can in particular be controlled
  • the or at least one product conveyor is preferred.
  • Product conveyor can be intermittent. It is also possible that the product conveyor is operated only as required or when needed. It is preferred that the product conveyor is operated periodically. For example, the
  • Product conveyors are operated after each filling operation or after every second, third or fourth filling operation or any other number of filling operations, in the meantime, in
  • the product deposited in the collecting container can be returned to the intermediate container or, for example, also to the product supply. It is also possible that the distances between the operation of the
  • Product conveyor are irregular. It is also possible, the product conveyor continuously or clocked during a
  • the product deposited in the collecting container is fed to the intermediate container with the product conveyor.
  • At least one sensor is provided on the product conveyor and / or the collecting container, which sensor detects a measure of the amount of deposited product.
  • This sensor can be any sensor.
  • a separate weight sensor or fill level sensor may be provided on the collecting container which emits a signal at least when the product quantity stored there reaches or exceeds a predetermined level.
  • the weighing device is used to determine a measure of the amount of deposited product. This is for example possible if the sump is weighed by the weighing device, so that after completion
  • the product conveyor is preferably connected to the intermediate container to supply the deposited product to the intermediate container.
  • the collecting container can in particular directly with the
  • the transfer opening is in any case preferably dimensioned so large that the pressure surge occurring during the filling process ensures sufficient transfer of the displacement air.
  • the flow connection may also include or be formed substantially from a flow channel.
  • a flow channel a ratio of a free and in particular maximum free diameter of the flow channel to a length of the flow channel of greater than 1:20. In particular, this ratio is greater than 1:10 and preferably greater than 1: 5. If a flow channel comprises a plurality of subchannels, then a free diameter of the flow channel is understood to be a fluidically equivalent diameter.
  • the aerodynamically equivalent diameter is the sum of all
  • Partial channels calculated and not only from the diameter of a sub-channel.
  • a ratio of a free cross section of the flow channel to a free cross section of the filler neck is in particular greater than 1: 8 and preferably greater than 1: 6 and particularly preferably greater than 1: 4. If one flow channel several
  • Partial channels includes, so is understood by a free cross-section of the flow channel a flow-technically equivalent cross-section.
  • An aerodynamically equivalent cross section is formed or calculated from the sum of all subchannels and not only from the cross section of a subchannel.
  • the collecting container has a calming volume.
  • the ratio of a volume of an offensive bag to be filled to the settling volume is less than 20: 1 and preferably less than 10: 1 and particularly preferably less than 5: 1.
  • the calming volume of the collecting container can
  • a dedusting device is preferably provided.
  • the dedusting device is preferably provided for dedusting in the outer region of the filler neck to dust the ambient air on the outside of the hanging on the filler neck opening bag. This can be sucked through leaks escaping dust to meet the required or desired environmental impact.
  • the filler neck is preferably made telescopic, so that leaks may occur at the junction.
  • the dedusting facility can lenth be executed weaker than in the prior art, since only a much lower proportion of air must be dedusted, since the pressure surge in the sump can degrade.
  • the venting performance of the dedusting device can be halved, quartered or even reduced to 1/8 or more without sacrificing cleanliness.
  • the filler neck has a central product supply and at least one in particular lateral air discharge.
  • the filler neck is used both for supplying the product and for discharging the air contained in a simple manner.
  • the filler neck is connected on the one hand to the supplied product and on the other hand to the sump.
  • the collecting container is connected to the environment via at least one tube device or a displacement container.
  • the particular extends as a tube or hose
  • the tube may be vertical, but may also be provided inclined to the vertical.
  • the tube may be formed linear, but may also have bends and / or turns. The tube limits
  • the displacement volume is at least one-tenth and in particular at least a quarter of the volume of the collecting container, wherein in principle applies: the larger the better. It is possible that the tube is one
  • Displacement volume which substantially corresponds to the volume of an openable bag to be filled.
  • a suitable closure Surrounding the tube is a suitable closure and in particular a filter and preferably a simple filter is provided. Such a filter also avoids that foreign objects, dust or other materials from the environment in the interior of the
  • Collect collection container Such a filter can also as
  • Wire mesh or wire mesh or the like may be provided.
  • a tube extending upright from the sump has the advantage of providing a displacement volume.
  • dusty air enters the Collecting container, so this dust-containing air displaces the existing air in the displacement volume in the upright extending tube to the outside.
  • this air has no dusty product or at least almost no dusty product, so that the environment remains largely clean. Residual dust particles are retained by the mentioned filter.
  • the dust-containing air in the upright pipe as well as in the collecting tank can calm down so that the dust content contained settles downwards. Due to the upright orientation of the tube, the dust portion falls down and / or slides down the tube.
  • the flow resistance of the filter can be reduced by actively discharging the air to prevent pressure build-up and escape of air through the filling system.
  • control device is in particular configured and designed to control the metering device in dependence on the signals of the weighing device.
  • the metering is initially operated time-controlled or volumetrically and only then works weight controlled, for example in the fine stream.
  • the weighing device is adapted to weigh a filling system.
  • the filling system comprises at least the filler neck, so that a bag attached thereto is also weighed in order to carry out a filling process in the gross method.
  • the filling system also includes the collecting container, so that the collecting container is weighed with.
  • the first filling operation causes dust-containing product to settle in the collecting container during the filling process and after the end of the filling process, which product is weighed.
  • a new tare weight can be determined and used for the second filling process, so that the second filling process begins Weight accuracy can be significantly increased.
  • an empirical value for correcting the filled quantity can be used for the first filling process.
  • the collecting container is received decoupled from the filler neck.
  • a flexible hose or the like may be provided, which leads to a weight decoupling of the collecting container from the filler neck.
  • the weight is determined exactly at each filling in the gross method. Extruded air displaced from the open bag and containing the product will not cause any weight degradation as the product portion in the collection box is picked up separately and not weighed.
  • control device is set up and designed to time the metering or
  • volume controlled operate.
  • a considerable part of the product to be filled during a filling process can first be collected in the intermediate container.
  • the contents of the intermediate container can be emptied through the filler neck.
  • the controllable closure unit is closed, for example, even before attaching a new offensive bag product can be promoted in the intermediate container, so that the filling process can be accelerated overall. For example, 80% or 90% of the total quantity provided may be in the
  • the exact weight of the pre-filled in the intermediate container product must not be known, since empirical values of the density can be deduced.
  • the intermediate container is firmly connected to the product supply.
  • the Intermediate tank is preferably designed only for receiving a portion of the amount of product to be filled during a filling operation.
  • the product supply can have only 80%, 90% or even 50% of the volume occupied by a ready-filled open sack.
  • the intermediate container is not part of the weighed system or the filling system.
  • the weighing device is adapted to weigh the intermediate container to
  • the deposited product as a whole or a part of the deposited product is conveyed from the collecting container into the intermediate container. This amount is registered by the weighing device, so that an exact amount is weighed again at the next weighing process.
  • the settling product quantity in the intermediate container can also be taken into account in each case.
  • empirical values and, in the case of further filling processes, the previous preceding weight value or an average value can be used.
  • At least one blowing device is provided in order to inflate the opening bag at the beginning of the filling process.
  • a blower first air is introduced into the open-sack, which must be retrieved later again, such a method offers significant advantages, such as drape on the
  • Sack wall can be avoided.
  • Such a drape may result in lighter materials that do not fully deploy the sack and so overall only less dusty Product can be filled into the open bag, so there is a risk that the open bag overflows or can not absorb the entire product quantity. Inflating the offensive bag before starting the filling process helps to avoid such problems.
  • the filler neck is provided telescopically and in an extended
  • Filling position and a retracted take-off position can be brought.
  • a telescoping filler neck it is possible that the filler neck is retracted to decrease the filled offensive bag, for example, so that no dust-laden air escapes when removing the filled bag. Conversely, can be extended to attach a Offensack the filler neck.
  • a dedusting device is preferably provided in such embodiments on the filler neck.
  • the capacity of such dedusting can be considerably smaller than in conventional systems, since only a relatively small air flow with a low dust load must be dedusted. The dust content contained here can be discarded because it is only a small mass fraction. It is also conceivable that there is a post-treatment of the discharged air flow. In principle, such is usually worthwhile
  • At least one compression device is provided.
  • Compressor may act on the bag during the filling process and / or after the end of the filling process to densify the bottled product present therein.
  • a compression device is designed as a floor vibrator, which can be moved from below to the open bag.
  • the Bodenrüttler can be temporarily introduced from below during a filling process to the Offensack to the to compact already bottled material.
  • the bottom vibrator is brought to the open bag only after the end of the filling process or during the entire filling process, for example when filling in the net process.
  • a vacuum lance or vibrating bottle or the like from above through the filler neck dips into a trailing open bag to compact the product present there.
  • the inventive method is used for filling dusty and especially slightly dusty products such as bulk materials in open-mouth bags. For example, it may be used to fill maltodextrin and other dust-prone foods or other products where product purity is desired.
  • the filling takes place by means of a filling process at one
  • the filling process is controlled by weight with a control device and a weighing device. With at least one metering product is metered controlled from a product supply product and z. B. promoted. The product passes through a filler neck in the attached open bag. The pressure surge occurring during a filling process is used in the
  • the method according to the invention also has many advantages, as it is an effective way of filling and filling in a simple manner
  • the deposited product is removed intermittently.
  • the filling process depending on the design of the
  • Fig. 1 is a highly schematic side view of a
  • Fig. 2 is a highly schematic cross section through a
  • Fig. 4 is a highly schematic cross-section through a
  • FIG. 5 is an overall view of the packing machine of FIG. 1.
  • FIG. 1 shows a highly schematic side view of a packaging machine 1 according to the invention, which has a frame 40.
  • the packing machine 1 is used to fill open-top open sacks 3 with dusty products 2 or a dusting bulk material.
  • the packaging machine 1 can be supplied prefabricated open sacks 3. It is also possible and preferred that the packing machine 1 is designed as a so-called FFS system and in one
  • the direct production of the open sacks 3 on the packaging machine 1 has the advantage that in each case an optimal length of the open sacks 3 can be generated, even in the
  • a to be filled open bag 3 is to the filler neck 11th
  • Control device 4 is used to control the filling process and the operation of the packaging machine. 1
  • a product supply 5 or a silo is provided, which here stores a larger amount of product 2 to be filled.
  • Product supply 5 is sufficient here for the filling of a plurality of open sacks 3.
  • the product supply 5 is followed by at least one metering device 6, which product 2 away from the product supply 5 and promotes here to the intermediate container 7.
  • two metering members 6 are provided, both of which are each formed here as a screw conveyor.
  • One of the metering 6 is used for the coarse flow, while the other and here in the drawing behind and therefore not visible second metering 6 is used to promote the fine flow.
  • rotary valves for metering and transport of the product 2 can be used.
  • conveyor turbines for example, rotary valves, conveyor turbines, air conveyors or other dosing and metering devices for metering and transport of the product 2 can be used.
  • the metering 6 and the metering 6 is here the
  • the intermediate container 7 has at the lower end to a closure unit 8, which is controllable by the control device 4.
  • a closure flap can be used there. But it is also possible to use a shutter, a pinch valve or other closure unit.
  • the intermediate container 7 of the filler neck 11 is arranged downstream, which is telescopic here to allow lowering into the filling position and lifting in the removal position.
  • the filler neck 11 is part of the weighed system or the filling system 13, so that the appended to the filler neck 11 bag 3 is weighed in a weighing operation with the weighing device 12. This allows a filling process according to the gross method, in which after deduction of the known weights of the
  • the previously filled weight of the product 2 remains in the open bag 3 as a result of measurement. This allows accurate control of the weight being filled.
  • the filler neck 11 leads the product 2 brought up from above down into the open sack 3.
  • the product 2 brought up from above down into the open sack 3.
  • the collecting container 14 is here via a flexible hose as a flow channel 33rd
  • the flow connection 21 with the flow channel 33 is dimensioned such that the displacement air from the bag 3 passively occurring through the pressure surge occurring during the filling process is automatically transferred to the collection container 14. This means that the flow resistance is so low that a passive transmission and transfer of the displacement air is ensured in the sump 14.
  • Flow connection 21 are chosen so that the flow resistance is passively overcome by the pressure surge occurring during filling of the product in the open-sack. An active promotion is not necessary. This saves a lot of energy.
  • the cross section of the flow channel 33 is preferably greater than 1/4 and in particular greater than half the cross section of the filler neck 11.
  • the cross section of the flow channel 33 is particularly preferably about as large as a cross section of the
  • a width 21a of the flow connection is about as large as a width IIa of the filler neck.
  • the width 21a is preferably greater than 1/4 of the width IIa of the filler neck.
  • the width 21a of the flow connection is between about 1/2 of the width of the central product supply 18a and the width IIa of the filler neck and 2 times the width of the central product supply 18a or the width IIa of the filler neck.
  • the flow channel 33 is made as short as possible to minimize flow losses.
  • the specified dimensions ensure a reliable and passive promotion of the displacement air in the sump. As a result, a large part of the entrained in the displacement bulk material can be recovered sorted and continue to be used. In addition, the energy demand for the sinks
  • the flow channel 33 preferably drops steeply from the separation opening in the direction of the collection container 14, in order to reduce the accumulation of product in the flow channel, or in the
  • the intermediate container 7 is weighed separately. Then can be used for the flow connection 21 as a flow channel 33, a rigid tube or a flexible hose, as a weight decoupling at this point no longer
  • the sump 14 is only of its size here
  • the collecting container 14 at the lower end has a controllable closure 23, which can be opened automatically or manually if necessary. But it is also possible that the collecting container 14 is formed open at the bottom, so that the collecting container 14 opens into the line 34 without further closure.
  • the deposited product collects.
  • the deposited product 16 may be drained from the sump 14 as needed or at regular intervals.
  • a product conveyor 17 serves to derive the deposited product 16, a product conveyor 17.
  • the product conveyor 17 may be designed basically arbitrary. For example, it is possible that in the conduit 34, for example, a flexible screw is arranged, which directs the deposited product 16 through the line 34 up here and finally back into the intermediate container 7. However, any other type of product conveyor is also possible.
  • the product conveyor 17 is not operated continuously, but preferably at periodic or irregular intervals.
  • a sensor may be provided which detects a measure of the amount of deposited product and when exceeding a predetermined value of the control device 4 is a signal, so that the control device 4 ensures that a part or the entire deposited product 16 is conveyed away.
  • the collecting container 14 is connected via a pipe 25 with the environment 26 in connection. Within the tube 25, a displacement volume 27 is present. The displacement volume 27 is displaced out of the tube 25 to the outside into the environment when the air displaced from the open bag 3 passes into the collecting container 14. Since the air in the displacement volume 27 has time to settle, the dusty product settles there and is collected on the bottom of the collection container 14.
  • the settling volume 15 and / or the displacement volume 27 can depend on the bag volumes to be filled and / or the floating behavior of the dusting product
  • a filter 28 may be provided at the end of the tube 25.
  • a sensor 37 may be present for the level of the product 2 filled there. This allows a volume-controlled pre-filling of the intermediate container 7 for the coarse flow.
  • the compression device 30 which is designed here as Bodenrüttler 31, from below to the
  • FIG. 2 shows a schematic cross section of the filler neck, which is used for example in the packing machine 1 of Figure 1.
  • an open bag 3 is shown attached. From above, the product stream 36 reaches down into the open sack 3. The introduction of the product stream 36 takes place in a central section or along the
  • central product supply 18 At lateral areas here are 19 hereby air discharge lines provided through which the displaced from the open bag air is derived.
  • an open-mouth bag is received with its open-topped end close to the filler neck 11 in order to avoid the escape of dust-laden air to the outside.
  • the derived dust-containing air is guided in the lateral air discharges 19 and in the collecting container 14th
  • shutter flaps 29 are located, which allow at least one trickle-tight closure of the filler neck 11 to ensure after the end of the filling process a sack change without contamination of the packing machine by Rieselgut.
  • Fig. 2 the dimensions IIa, 18a and 21a are shown relative to each other in this preferred embodiment.
  • the width 21a of the flow connection is here slightly larger than the width IIa of the filler neck, which is greater than the width 18a. Due to the generous dimensions of the dimensions and
  • FIG. 3 shows another exemplary embodiment of a cross section of the filler neck 11 for the packaging machine 1 according to FIG. 1.
  • the filler neck 11 is firmly connected to the sump 14, so that in addition to the filler neck 11 and the sump 14 is part of the filling system 13 and the weighed system.
  • an empirical value for the expected settling product quantity 16 is set, and in the case of the following filling operations, the measured values which result after the acceptance of a filled open bag 3 are used.
  • the deposited product 16 can be determined and in the following filling process, a corresponding amount more is filled in the open bag 3 after zeroing.
  • a gap 39 can be seen, which is shown here greatly simplified.
  • dedusting 22 is provided there. For the dedusting only relatively little air is sucked off, so that the dedusting can be made considerably smaller than in the prior art.
  • the displaced from the open-mouth bag 3 during the filling and dust-laden air is introduced via the lateral air discharge lines 19 along the air flow 35 via the flow connection 21 into the collecting container 14.
  • the collecting container 14 is connected to the environment 26 via a pipe 25 and a filter 28 at the end of the pipe 25.
  • the width 21a of the flow connection preferably corresponds to the contact surface between the filler neck 11 and the collecting container 14.
  • the filler neck 11 has a width IIa which is greater than the width 18a, which in turn is greater than the width 21a of the flow connection.
  • Flow connection here is greater than 1/4 or even 1/2 of the width of the filler neck IIa. The same applies to the flow cross sections, so that the flow cross section of the
  • Flow connection is greater than 1/5 and preferably greater than 1/3 or 1/2 of the flow cross-section of the filler neck 11.
  • a calming volume 15 is present in the sump 14. The air introduced there calms down and the containing product portion collects as a settled product 16 at the bottom of the collecting container 14. The settled product 16 can be discharged through a connected line. If necessary, a controllable closure 23 at the bottom of the
  • Collection container 14 is provided.
  • FIG. 4 shows a further embodiment of a filler neck 11 for a packaging machine according to FIG. 1.
  • the filler neck is weighed together with an attached bag 3 in gross method.
  • a weighing device is also provided as a sensor 38 on the collecting container 14.
  • the weight sensor 38 detects the weight of the collecting container 14, so that the amount of deposited
  • Product 16 is detectable.
  • a flexible hose is provided as a flow channel 33 between the filler neck 11 and the collecting container 14.
  • the flexible hose may extend over the entire length or only a portion. Again, the conditions mentioned for the dimensions and flow cross sections apply.
  • a tube 25 with a displacement volume 27 can be provided on the collecting container 14.
  • the end is again provided with a filter 28. If the sump 14 is sized large enough, it may be possible to dispense with the tube 25.
  • a vacuum lance 32 is shown as a compression device 30, which can dip during the filling process or after the end of the filling process from above into the open bag 3 to vent the interior of the open bag 3.
  • Figure 5 shows an approximately to scale side view of an embodiment of a packaging machine 1 according to the invention, in which above the frame 40, a product supply 5 is provided, which is followed by a metering 6.
  • the metering 6 promotes the product in an intermediate container 7, from which the product. 2 is passed through the filler neck 11 in an attached bag 3 on.
  • a collecting container 14 serves to calm the displaced from the bag 3 during the filling air, over the
  • the volume of the collecting container 14 including the volume of the flow channel and the displacement volume is preferably greater than 1/10 and in particular greater than 1/6 or 1/4 of the volume 3a of the offset sack 3.
  • the ratio can also be 1: 2 or greater.
  • the volume can also be greater than the volume 3a of the open sack.
  • the intermediate container 7 is weighed separately with a weighing device 12 ⁇ , so that a filling in the net method is made possible.
  • the quantity 10 to be filled is first of all weight-collected in the intermediate container 7 and then into the open-mouth bag 3
  • Filler 11 is weighed via a weighing device 12, so that a filling in the gross procedure takes place.
  • the invention has considerable advantages. Due to the fact that the air displaced out of the open sack 3 during the filling in a collection container 14 is passed, which has a calming volume 15 and is preferably connected via a pipe 25 with a displacement volume 27 with the environment 26, the most essential part of the product contained in the discharged air can be recovered sorted. Sufficient time is available in the collecting container 14, so that the dust content contained in the air settles out and can be discharged as a settled product 16. Depending on the size of the collecting container 14 and the receiving capacity of sedimented product 16, the emptying or the removal of the settled product 16 after each filling operation or at certain time intervals or
  • the invention does not require a large-scale dedusting system, which has to process the entire air displaced from the open bag 3.
  • a large-scale dedusting system which has to process the entire air displaced from the open bag 3.
  • Dedusting system can be used with significantly smaller capacity, for example, to dedust the gap on a telescopic filler neck. This will, however, usually less than half or even less than a quarter of
  • the product 16 deposited in the collecting container can be reused in a pure type and is refilled here during the next filling process. This means that even with a product change only relatively small cleaning work is necessary.

Abstract

L'invention concerne une machine d'emballage et un procédé pour remplir des sacs ouverts avec des produits poussiéreux tels que des produits en vrac au moyen d'un processus de remplissage. Le processus de remplissage est commandé par un dispositif de commande et un dispositif de pesage en fonction du poids. Le produit est transporté de la réserve de produit par un organe de dosage et est introduit dans un sac ouvert suspendu pour le processus de remplissage par une tubulure de remplissage. La tubulure de remplissage est reliée à un récipient collecteur par une liaison d'écoulement telle qu'un coupe de bélier survenant lors du processus de remplissage est utilisé pour faire passer l'air déplacé contenu dans le sac ouvert et contenant le produit poussiéreux dans le récipient collecteur pour absorber et tranquilliser l'air déplacé dans le récipient collecteur et pour déposer une fraction poussiéreuse de l'air déplacé au moins en partie dans le récipient collecteur comme produit déposé.
EP14736659.5A 2013-06-17 2014-06-17 Machine d'emballage et procédé Active EP3010812B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013010048.8A DE102013010048A1 (de) 2013-06-17 2013-06-17 Packmaschine und Verfahren
PCT/EP2014/062731 WO2014202613A1 (fr) 2013-06-17 2014-06-17 Machine d'emballage et procédé

Publications (2)

Publication Number Publication Date
EP3010812A1 true EP3010812A1 (fr) 2016-04-27
EP3010812B1 EP3010812B1 (fr) 2017-06-07

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EP14736659.5A Active EP3010812B1 (fr) 2013-06-17 2014-06-17 Machine d'emballage et procédé

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US (1) US10173794B2 (fr)
EP (1) EP3010812B1 (fr)
CN (1) CN105452110B (fr)
BR (1) BR112015031723B1 (fr)
DE (1) DE102013010048A1 (fr)
ES (1) ES2638215T3 (fr)
WO (1) WO2014202613A1 (fr)

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Also Published As

Publication number Publication date
BR112015031723B1 (pt) 2021-01-12
US10173794B2 (en) 2019-01-08
EP3010812B1 (fr) 2017-06-07
US20160122042A1 (en) 2016-05-05
DE102013010048A1 (de) 2014-12-18
WO2014202613A1 (fr) 2014-12-24
BR112015031723A2 (pt) 2017-07-25
CN105452110A (zh) 2016-03-30
ES2638215T3 (es) 2017-10-19
CN105452110B (zh) 2017-06-27

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