EP3003864A1 - Packmaschine und verfahren - Google Patents
Packmaschine und verfahrenInfo
- Publication number
- EP3003864A1 EP3003864A1 EP14727493.0A EP14727493A EP3003864A1 EP 3003864 A1 EP3003864 A1 EP 3003864A1 EP 14727493 A EP14727493 A EP 14727493A EP 3003864 A1 EP3003864 A1 EP 3003864A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filling
- ventilation
- control unit
- packing machine
- air
- 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
Links
- 238000012856 packing Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000009423 ventilation Methods 0.000 claims abstract description 113
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000005429 filling process Methods 0.000 claims description 71
- 239000000945 filler Substances 0.000 claims description 36
- 239000013590 bulk material Substances 0.000 claims description 32
- 238000004806 packaging method and process Methods 0.000 claims description 18
- 238000013022 venting Methods 0.000 claims description 12
- 238000005303 weighing Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 238000003860 storage Methods 0.000 description 12
- 230000008901 benefit Effects 0.000 description 10
- 230000003749 cleanliness Effects 0.000 description 8
- 239000004568 cement Substances 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 230000001914 calming effect Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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
- B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
- B65B1/18—Methods of, or means for, filling the material into the containers or receptacles for filling valve-bags
Definitions
- the present invention relates to a packing machine for filling bulk goods in containers and a method. It will be
- valve sacks When filling valve sacks, the valve sacks are positioned on a generally horizontally oriented filler neck
- valve bag valve closes the opening self-sealingly or it becomes an additional one
- a supply of bulk materials to be filled is stored in a product supply.
- One or more filler is in each case a conveyor
- the conveyor may comprise a Greef and a conveyor turbine.
- a conveyor turbine which is similar to a rotary valve, promotes by turning the
- Turbine wings the bulk material from the filling pot in the connected filling channel, at the end of the product outlet is provided.
- the product outlet is located at the filler neck.
- Container increases during bottling. This internal pressure must be largely reduced before acceptance of the container, so not a considerable part of the filled bulk material escapes during the removal of the filler neck by the pressure reduction and thus pollutes the environment of the packing machine. This applies all the more to the filling of bulk materials in containers made of, for example, polyethylene films or the like, since the film wall is impermeable to air.
- Method is the constant addition of air during the filling process avoided, so less air is introduced into the bag. This allows the waiting time for venting after the end of the
- EP 1 860 027 Bl a system and a method for filling sacks, wherein during the filling process, a measure of the pressure prevailing in the bag internal pressure is measured and wherein during the filling of the bag a
- packaging machines are often equipped as rotating packing systems with 8, 12 or 16 filler neck, even a defect of a single filler neck can lead to significant downtime of such a packing machine.
- a filling system according to EP 1 860 027 Bl is therefore especially in the filling of very light materials such
- Soot particles or Ti02 particles or the like are used, which is particularly high in air. For others
- Object of the present invention to provide a packing machine and a method for filling bulk materials in containers available, whereby a high degree of cleanliness of the system can be guaranteed and in which the equipment cost is less.
- the packing machine according to the invention is used to fill bulk goods in containers and comprises at least one product supply, at least one conveyor, at least one filling nozzle, at least one ventilation device with at least one Ventilation valve and at least one vent nozzle on the product path between the product supply and at least one
- the product outlet is preferably at the
- the ventilation valve is over a
- Controlled executed control unit and the control unit and the venting valve are adapted and configured to set the passing through the venting air quantity and / or the effective amount of air passing in a period of time at the beginning of a filling greater than in a period of time at the end of the filling.
- the packing machine according to the invention has many advantages.
- a significant advantage of the packing machine according to the invention is that no additional pressure sensor is needed at each filler neck to ensure effective cleanliness of the packing machine.
- control unit sets the amount of air passing through at the beginning of the filling process greater than at the end of the filling
- Packing machine in which a particularly high reliability can be achieved by reducing the number of components.
- a continuously constant amount of air from the beginning of the filling process to the end leads to similar flow properties of the bulk material to be filled to a significantly larger amount of air that enters the container, whereby the internal pressure in the container at the end of the filling is correspondingly higher. This results in greater pollution and / or a significantly longer waiting time at the end of the filling process.
- Material is introduced more, since the material blocks and / or forms bridges.
- the ventilation device comprises at least one valve device and at least one ventilation nozzle.
- the valve device may be connected to the ventilation nozzle via a compressed air connection.
- the valve device may be provided directly on the ventilation nozzle or also spaced therefrom.
- the valve device may be arranged in or on a control cabinet, while the
- Ventilation nozzle on the product path for example at the
- Filling degree of the container can be improved.
- volume of the container can be reduced. If, for example, the container is reduced by 5% or only 2% or even only 0.5%, the costs for the containers can be correspondingly reduced. When operating with sixteen fillers and operating 24 hours a day, seven days a week, the cost of packaging can be reduced accordingly. Also, the storage space and the transport volume can be reduced slightly.
- weight accuracy can be improved. Due to the fact that practically no material escapes when the container is removed from the filler neck, not only is the cleanliness increased, but the accuracy is also improved.
- the weight accuracy is also increased by the improved control of the filling process, since the coarse and fine flow phases are better controlled by the optimized air supply of the filling material and so the weight increase in the fine flow phase can be made smaller. This results in an even more accurate shut-off point with less system-related caster.
- fill weight data It is also possible and preferred to derive at least one characteristic value from the course of the filling weight over the filling time and to take it into account in the control of a subsequent filling operation. Then, the addition of air to the course of the filling weight over the filling time of at least one previous filling operation can be adjusted. The amount of air can be reduced if the fill curve shows that too much air has been added.
- Air volume can be increased in a subsequent filling process, if it follows from the course of the filling weight over the filling time that too little air was added.
- control unit is designed and
- the control unit is preferably designed and
- the amount of air supplied by the at least one ventilation valve is adjusted via a variation of the ventilation cross-section of the ventilation valve. But it is also possible that the air pressure used is varied to adjust different amounts of air.
- vent valve as a
- Proportional valve formed or comprises at least one such proportional valve.
- the vent valve can as
- Solenoid valve may be formed and then includes in particular at least one electric coil and at least one preferably designed as a spring preload unit to the
- Pre-load vent valve in a preferred position.
- the preferred position may be, for example, the closed position.
- the vent valve may include a control cone, a pole tube, and an armature to adjust a corresponding vent area in response to the applied current.
- the ventilation cross section of the ventilation valve is adjustable at least in a plurality of stages.
- the ventilation cross-section is quasi-continuously or continuously adjustable. This allows a particularly accurate control of the passing air flow.
- a characteristic curve of the ventilation valve is stored in the control unit.
- the characteristic curve can also have hysteresis effects
- the control unit is preferably designed and configured to set the effective ventilation cross section of the ventilation valve via at least one pulse width modulation method.
- a pulse width modulation method allows simple and effective control of the amount of air passing through the vent valve.
- an interval duration of less than 1 second and in particular less than 100 milliseconds is preferably set.
- an interval duration is less than 50 milliseconds and in particular less than 25 milliseconds. In a specific embodiment, 20 milliseconds were set as the interval duration.
- the time portion of an interval duration is set in which the ventilation valve is energized, for example. If, for example, a power supply is applied over a period of 10 milliseconds for an interval duration of 20 milliseconds, the coil is energized for 50% of the entire interval duration.
- each interval repeats until the pulse width is modulated differently.
- the filling nozzle is associated with a weighing unit to detect a measure of a weight of the associated container. It is possible that a gross weight is recorded.
- At least one ventilation nozzle is provided on the filling channel between the conveyor and the product outlet of the filling nozzle. It is also preferred that at least one ventilation nozzle is provided on the conveyor. It is possible that only individual air vents are provided controllable in terms of their amount of air. It is also possible and preferred for all or substantially all of the ventilation nozzles to be controllably provided with regard to their air quantity.
- in the filling channel is a
- the shut-off can also be referred to as a metering device, as regularly the
- Shut-off is not only provided for completely closing or releasing the filling channel, but also for
- Adjustment of coarse and fine flow In this case, a part of the filling channel is closed to adjust the fine flow with the shut-off device, so that no longer the entire
- the conveyor effectively delivers less bulk material through the filling channel into the container.
- At least one ventilation nozzle is provided in front of and / or behind the shut-off device.
- the ventilation device or at least one ventilation device comprises an annular body with an inner passage cross-section and at least a ventilation channel at least partially surrounding the passage cross-section.
- the ventilation valve preferably comprises at least one annular ventilation channel, which the
- a filling channel to extend from the conveying device.
- the filling channel ends at the product outlet of the filling nozzle.
- the filling channel is thus at least partially formed by the filler neck.
- the annular body of the ventilation device forms with its inner passage cross section a portion of the filling channel. Preferably surrounds the
- annular ventilation channel the inner cross section of the filling channel. This will be a particularly effective and uniform
- Air supply of the filling channel achieved.
- At least two ventilation devices are provided. It is possible that at the filling channel two different ventilation devices
- the two ventilation nozzles can open separately to the filling channel and / or open into the annular ventilation channel of the annular body.
- control unit is designed and configured to control the amount of air through the ventilation nozzle in dependence on at least one parameter.
- the parameter is taken in particular from a group of parameters which the current filling weight of the container, the past filling time, a measured or estimated filling level in the container, the bulk material temperature, the ambient temperature, the bulk moisture, the ambient humidity, the previous service life of the packing machine, the Art of the bulk material to be filled and other measured values of the bulk material to be filled and the environment of the bulk material and the packaging machine.
- the ventilation devices can also be operated differently.
- control unit is designed and arranged to start the ventilation through the ventilation valve before the start of filling.
- the beginning of the filling is understood here to mean the start of the conveying element and / or the opening of the shut-off device. If, for example, some air is already supplied to the bulk material before opening the shut-off device or z. B. after a standstill, so improve the flow properties of the bulk material to be filled, which subsequently the amount of air supplied can be reduced accordingly.
- the supply can also only from the conveyor z. B. done as a compressed air pulse.
- the filling process comprises at least one coarse stream and at least one fine stream.
- the control device is designed and set up to reduce the effective air volume of the ventilation valve already during the coarse flow or during the fine flow. In particularly preferred embodiments, the effective air quantity of the ventilation valve is still during the
- a filling process comprises at least one coarse flow and a subsequent fine flow.
- the shut-off valve can be partially closed to the inlet cross-section into the filling channel or a passage cross-section in the
- Delivery of the conveyor is reduced to a To promote a lower amount of bulk material.
- control unit is designed and
- the amount of air can be increased or decreased in a corresponding manner, for example, to achieve an adaptation to changing environmental conditions.
- a plurality of ventilation valves are connected in parallel and / or in series.
- the control unit is preferably designed and configured to control a subsequent filling operation as a function of historical data stored in a storage device.
- the historical data has preferably been recorded during at least one previous fill operation.
- the historical data may be direct measurements or at least one derived measure.
- the dead time or a characteristic number derived therefrom of a preceding filling operation is suitable for controlling. Effective control has also been achieved with measures characterizing the weight increase in the coarse flow and / or the weight increase in the fine flow. Good results were achieved with a measure that the
- Ratio of the weight increases in the coarse flow and fine flow characterized.
- the inventive method is used for filling bulk materials in containers by means of a filling operation on a packaging machine.
- the bulk materials are removed from at least one product supply of a packaging machine.
- the packing machine comprises at least one conveying device, at least one filling nozzle, at least a ventilation device with at least one venting valve and at least one venting nozzle on the product path between the product supply and at least one product outlet.
- Product outlet is provided in particular at the filler neck.
- the conveyor bulk material is conveyed through at least one filler in the container.
- Control unit is controlled, the aeration valve, so that the effective amount of air passing through the vent nozzle in a period of time at the beginning of a filling operation is greater than in a period of time at the end of the filling process.
- the method according to the invention also has many advantages, since it enables effective and clean filling of bulk goods in containers.
- the amount of air in the time period at the beginning of a filling operation is at least 50% greater, and in particular at least twice as large as in the time period at the end of the filling process.
- the amount of air at the beginning of a filling process is at least four times as large as at the end of a filling operation.
- the air is added through the vent valve during the entire filling process, at least as long as the shut-off valve is open. In the calming phase after the shutdown of the conveyor and / or after closing the shut-off device no air is supplied.
- the amount of air can be changed stepwise or continuously. The first period on the
- the filling process comprises at least one
- Coarse flow at the beginning and at least one fine flow at the end of the filling process At the end of the fine flow, a waiting period may follow to reduce the overpressure present in containers.
- the filling process in addition to the filling per se still comprises a section after filling and / or a section before filling.
- the section after the Filling can be used in particular for calming and / or pressure reduction in the container.
- the section before filling can be used in particular for calming and / or pressure reduction in the container.
- the section of the filling is in particular the section in which material is transported into the container and / or the section in which material is transported to the container and / or in which the conveyor is activated.
- At least one index for a ratio of a weight increase within the coarse flow to an increase in weight within the fine flow is determined.
- Weight gradients in the coarse flow and in the fine flow It is possible that the weight increase over a certain proportion of time of the coarse flow and over a certain proportion of time of the fine flow is determined.
- Periods preferably an average or typical slope in the coarse flow and an average or typical slope in the fine flow is determined.
- the weight increases in the coarse flow and in the fine flow can be set alone and / or in relation to one another in order to determine a ratio or the characteristic number.
- the ratio or the key figure is saved.
- the following filling operation is preferably dependent on the stored data
- the amount of air supplied in the time period at the beginning of the filling process is reduced when the weight increase within the coarse flow in the previous filling falls below a predetermined level. It has been found that with the supply of too much air the
- the amount of air is increased in the period at the beginning of a subsequent filling process when the dead time is at the beginning the current filling process exceeds a predetermined level.
- the dead time indicates the period of time until a weight increase of the container can be registered after the start of filling. This happens z. B. if the product is poorly ventilated or stale and thus flows poorly.
- the supplied air quantity in a period of time at the beginning and the amount of air supplied in a period of time at the end are adjusted when the ratio of the weight increases within the
- the characteristic value exceeds a further predetermined value, it is preferable to increase the supplied air quantity in at least one time interval in order to prevent a blockage
- the conveyor may comprise a Greetch and a conveyor turbine.
- a conveying member a pump, a screw or a gravity feed can be used.
- at least one ventilation nozzle at least one ventilation nozzle
- a ventilation valve regulates the amount of air and a valve is used for constant basic ventilation.
- Such a packaging machine is used for filling bulk goods in containers.
- the packaging machine comprises at least one product supply, at least one delivery device, at least one filler neck, at least one weighing unit, at least one control unit and at least one storage device.
- the control unit is designed and set up to store at least one characteristic of the course of the filling weight over the filling time in the storage device as historical data during a filling process.
- the control unit is to
- History of the filling weight may include all weight data determined. It is also possible that only individual data are stored in the memory device, which are characteristic and in particular representative of the filling process. For example, typical gradients, weight data, dead times and other time intervals or other data derived from the course of the weight can be stored in the memory device.
- At least one ventilation device Preferably, at least one ventilation device
- the ventilation device comprises at least one ventilation valve and at least one ventilation nozzle.
- Venting nozzle is preferably provided on the product path between the product supply and at least one product outlet.
- the ventilation valve is designed to be controllable via a control unit.
- the control unit and the ventilation valve are in particular adapted and designed to be effectively control the amount of air passing through the vent nozzle in response to the historical data stored in the memory device.
- the control unit is preferably designed and
- the inventive method according to this aspect of the object is used for filling bulk goods in containers with a packing machine.
- the packaging machine has at least one product supply, at least one delivery device, at least one filler neck, at least one weighing unit, at least one control unit and at least one storage device.
- a filling process is controlled by the control unit.
- the control unit stores characteristic data obtained in the filling operation as historical data in the storage device.
- Filling operation is controlled by the control unit in dependence on the historical data stored in the memory device.
- Such a packaging machine according to the invention and such a method according to the invention has many advantages.
- a self-adapting operating conditions adapting packing machine is provided.
- By determining the data and storage during operation it is possible to respond quickly even with high and highest performance figures. Even if the fluidity decreases or increases, each reacts reliably. Downtime can as well
- Fig. 1 is a perspective view of an inventive
- FIG. 2 is a schematic plan view of the packing machine of Fig. 1;
- Fig. 3 is a highly schematic plan view of the packing machine of Fig. 1;
- FIG. 4 shows a highly schematic cross section through a part of the packaging machine according to FIG. 1;
- Fig. 5 is a highly schematic perspective view of a
- Fig. 6 is a schematic representation of the weight profile
- Fig. 7 is a schematic representation of a weight profile during a subsequent filling operation.
- a packing machine 1 which serves to fill bulk goods in container 3.
- valve bags are filled.
- the packing machine 1 is rotatable and has a plurality of filling units 40.
- a packing machine 1 according to the invention can also be designed as a fixed single-piece packing machine or as a row packer with a plurality of filling nozzles 7. All filler is here a total of a silo or a product supply 4 assigned.
- Fig. 2 shows a plan view
- Fig. 3 is a schematic
- Each filling unit 40 of the rotatable packaging machine of FIG. 1 occupies space corresponding to a pie slice. The available space requirement of a segment 45 results from the angle 44. With 12 filling nozzles, this is 30 °.
- Each filling unit 40 has a filling pot 5, a filler neck 7, a bag chair 48 and here in each case a control unit 12.
- the packaging machine 1 is assigned here a AufSteck noticed 43 with a bag magazine 46. After attaching the container 3 are filled during the continuous rotation.
- the packing machine 1 is driven by a motor 47 in the direction of rotation 52. After filling, the filled valve sacks 3 are removed by a discharge device 41.
- Each filling unit 40 may be associated with a single closing device 42, or a common closing device 42 is provided on the discharge device 41 in order to additionally weld the bag valves.
- FIGS. 1 to 3 shows a highly schematic cross section of a part of a packing machine 1 according to FIGS. 1 to 3. Above the
- the product path 9 is indicated schematically by arrows from the product supply 4 into the valve bag or the container 3.
- the bulk material 2 occurs at the end of the filler neck 7 through the
- a conveyor turbine 6 is provided in the Draftmün 5 here as a conveyor 6, which here also rotates about a substantially horizontal axis, so that the
- Turbine blades of the conveyor turbine 6 which provided in the respective filling pot 5 bulk material in the filling channel 18th
- shut-off device 22 is arranged in the filling channel 18.
- the shut-off device 22 is designed here as a metering device and can be spent on the actuating cylinder 22a in the shut-off position and in a fully open position for the coarse flow and in a partially open position for the fine flow. Also possible are even more positions to allow multiple coarse flows and / or fine streams.
- a ventilation nozzle 26 is schematically shown, through which a controllable Air quantity is supplied to the bulk material 2 in the filling pot 5.
- the air nozzle 26 is connected to a vent valve 8 for control.
- the vent valve 8 is controlled by a control unit 12, which in turn is connected to a storage device 50.
- at least one index or characteristic value is also stored in the memory device 50.
- several key figures are stored, which are characteristic of the filling process.
- the dead time determined from the course of the weight at the beginning of a filling process and the characteristic gradients of the course of the weight in the coarse stream and in the fine stream are particularly suitable for controlling subsequent filling operations.
- Ventilation valves 8 can be arranged directly on the ventilation nozzle 26. But it is also possible a central arrangement for each filling unit z. B. on the control unit associated with a filling unit. The ventilation nozzle 26 is then connected via a line to the vent valve 8. Time delays due to the volume of the line can be neglected.
- Each filling pot 5 or each filler 7 is associated with a ventilation device 20.
- Each ventilation device 20 has at least one ventilation valve 8, to which at least one ventilation nozzle 26 is assigned in each case. The control of the
- Ventilation valve 8 via a control unit 12, which can also control the filling process.
- control unit 12 In the control unit 12 is a characteristic curve 19 for the connected ventilation valves. 8
- the Weight data acquired by the weighing unit 21 are stored in the memory device 50. All measurement data and / or the characteristic numbers 31 determined therefrom are stored in the memory device 50. The measured data are evaluated with regard to the course of the filling weight in order to be able to adapt in particular the following filling process to the knowledge gained. Optionally, the control of the current filling process, for example, with respect to the waiting time at the end of the filling process is adjusted.
- the aeration nozzle 26 supplies air to the bulk material 2 via an annular ventilation channel 25 (see FIG.
- the hanging on the filler neck 7 3 is by the
- a bag tester 49 is provided on the filler neck 7, which tests the presence of a bag before the start of filling.
- FIG. 5 shows a schematic perspective view of a ventilation device 20, which comprises a ventilation valve 8 controlled by the control unit 12, an annular body 23 with a ventilation channel 25 and a ventilation nozzle 26.
- the annular body 23 has a passage cross section 24, which is adapted to the inner cross section of the filling channel 18.
- the passage cross-section 24 is surrounded by the ventilation channel 25. Over the entire circumference of the annular ventilation duct 25, air is supplied to the bulk material 2. As a result, in particular, the wall friction is reduced.
- FIG 6 and 7 show two successive filling operations 15a and 15b for the respective filling of cement as bulk material 2.
- the filling weight 36a, 36b is applied over the filling time.
- each of the internal pressure 37a, 37b dotted in the container 3 with applied although the internal pressure is not regularly detected with the packing machine 1 or must be detected.
- the pressure curves 37a and 37b serve to explain the principle and show that control is possible only on the basis of the weight curves 36a, 36b and leads to excellent results in the course of the filling operations. A pressure-dependent control during a filling process is not necessary. A pressure sensor on each filler neck is not required and can be saved.
- a non-optimal filling process 15a is shown, which here has a deliberately unfavorable filling curve to explain the principle.
- the conveyor turbine 6 is operated at the intended operating speed.
- the shut-off device 22 is brought via the adjusting cylinder 22 a in the position for the coarse flow 27 a, in which the complete filling channel 18 is released here.
- the shut-off device 22a is brought into the position for the fine flow 28a, in which, for example, half of the filling channel 18 is closed.
- the point in time for switching from the coarse flow 27a to the fine flow 28a may be, for example, the filled weight, for example 70%, 80% or 90% of the intended target weight.
- the air quantity 13a which is added here continuously during a complete time interval 14a at the beginning of the filling process 15a, is additionally shown. After the end of the period 14a, a reduced amount of air 17a is continuously supplied for the period 16a at the end of the filling operation 15a.
- the dead time 34a indicates the time until a weight increase of the container 3
- the supplied air amount 13a is reduced, so that an air amount 17a is supplied in the period 16a.
- the reduction of the amount of air from 13a to 17a is relatively low, so that still a considerable proportion of air is still introduced into the container 3.
- the pitch of the filled fill weight 36a does not change significantly over time in the fine stream 28a.
- a difference of the gradients 32a and 33a is not clearly visible. This means that the ratio of the weight gradient 32a in the
- Coarse flow 27a and the weight slope 33a in the fine flow 28a is relatively small.
- the internal pressure 37a measured here by way of example remains at a high level and drops relatively little. At the end of the fine flow 28a there is still a considerable inner bag pressure 37a, so that a considerable waiting time has to be provided after the end of the time period 16a until the container can be removed. Even at the normally scheduled acceptance time 10a, there is still a relatively high internal pressure 37a which could still lead to contamination of the environment of the packing machine 1. Therefore, when measuring a weight course 36a, as shown in Fig. 6, the waiting time after the end of the fine flow 28a until a bag 3 is removed, still increased dynamically in order to avoid contamination of the environment safely. Here, the bag 3 is removed only at the time 10a ⁇ instead of the time 10a.
- Weight curve 36a is determined.
- the course of the filling weight 36a over time is evaluated even further during the filling process 15a or even thereafter.
- the dead time 34a and further characteristic gradient values for the weight gradient 32a in the coarse flow and the weight gradient 33a in the fine flow are derived as characteristic numbers 31 from the determined course of the filling weight 36a.
- At least the key figures 31 are stored as data 51 in the memory device 50. It can also all
- Measurement data or a part thereof are stored.
- the low ratio of the gradients 32a to 33a in the case of the filling process 15a here is a clear sign that too much air has been added to fill the cement.
- An ideal curve depends on the bulk material to be filled.
- Control profile 29b provided.
- one of the air quantities 13b, 17b is changed in order to optimize the filling curve.
- the time duration for the first time interval 14b is reduced and the second time interval 16b is adapted.
- both air quantities 13b and 17b are reduced here.
- the ratio of the amount of air 13b to the amount of air 17b is considerably increased.
- the total amount of air supplied (area below the air volume curve) is thereby significantly reduced.
- FIG. 7 shows an illustration of the filling process 15b over time, wherein also the filling weight 36b is plotted over time. Again, for information purposes, the internal pressure 37b in the container 3 with applied. The knowledge of the internal pressure is for controlling the amount of air 13b, 17b but not necessary.
- the weight gradient 32b in the coarse flow 27b is significantly greater than the weight slope 33b in the fine flow 28b.
- the region of the coarse flow 27b and the region of the fine flow 28b are optically clearly distinguishable. Due to the shallower slope in the fine flow 28b and the weight accuracy is improved.
- the entire filling time 30b is considerably less than the filling time 30a in the filling process 15a according to FIG. 6. It is essential, above all, that at the time of acceptance 10b a very low internal pressure already exists; 37b prevails in the container, so pollution of the environment is significantly reduced. At the same time, however, the filling time 30b is not increased, but can be significantly reduced compared to the filling time 30a.
- the amount of air 13b in the period 14b at the beginning of the filling operation 15b is slightly reduced from the amount of air 13a of FIG.
- the length of the time interval 14b is considerably reduced, so that the total amount of air added within the time interval 14b is considerably smaller than the total amount of air added during the time interval 14a in the filling process 15a according to FIG. 6.
- the amount of air 13b in the period 16b at the end of the filling process 15b is reduced considerably more than in the filling process 15a of FIG. 6.
- the amount of air 17b is set to 1/3 or 1/4 of the amount of air 13b in the period 14b.
- the transition from the amount of air 13b to the amount of air 17b can also be continuous. By these measures much less air is introduced into the bag than in the
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013009284.1A DE102013009284A1 (de) | 2013-06-04 | 2013-06-04 | Packmaschine und Verfahren |
PCT/EP2014/061243 WO2014195235A1 (de) | 2013-06-04 | 2014-05-30 | Packmaschine und verfahren |
Publications (2)
Publication Number | Publication Date |
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EP3003864A1 true EP3003864A1 (de) | 2016-04-13 |
EP3003864B1 EP3003864B1 (de) | 2018-10-17 |
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ID=50877281
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Application Number | Title | Priority Date | Filing Date |
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EP14727493.0A Active EP3003864B1 (de) | 2013-06-04 | 2014-05-30 | Packmaschine und verfahren |
Country Status (6)
Country | Link |
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EP (1) | EP3003864B1 (de) |
CN (1) | CN105263805B (de) |
DE (1) | DE102013009284A1 (de) |
DK (1) | DK3003864T3 (de) |
ES (1) | ES2706231T3 (de) |
WO (1) | WO2014195235A1 (de) |
Families Citing this family (2)
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CN107784176B (zh) * | 2017-10-31 | 2021-05-25 | 华电重工股份有限公司 | 一种输送机散装物料的标定方法及装置 |
DE102017130958A1 (de) | 2017-12-21 | 2019-06-27 | Haver & Boecker Ohg | Packmaschine und Verfahren zum Füllen von Schüttgütern in Gebinde |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1209936B (de) * | 1959-05-01 | 1966-01-27 | St Regis Paper Co | Verfahren und Vorrichtung zum Fuellen von Ventilsaecken mit staubfoermigem oder koernigem Gut |
NL7008276A (de) * | 1970-06-06 | 1971-12-08 | ||
FR2219872B1 (de) * | 1973-03-02 | 1977-09-16 | Windmoeller & Hoelscher | |
US4574720A (en) * | 1984-09-06 | 1986-03-11 | Champion International Corporation | Method and apparatus for filling valved bags |
DE4100658C2 (de) | 1991-01-11 | 1995-01-05 | Haver & Boecker | Verfahren und Maschine zum Einbringen von fließfähigem Füllgut in Behältnisse |
DE19726108A1 (de) * | 1997-06-19 | 1998-12-24 | Knaup Maschf Gmbh & Co | Sackfüllmaschine |
DE10258246A1 (de) * | 2002-12-13 | 2004-07-15 | Haver & Boecker | Verfahren und Füllmaschine zum Füllen von Ventilsäcken |
DE102006024870A1 (de) | 2006-05-24 | 2007-11-29 | Haver & Boecker Ohg | Verfahren und Anlage zum Befüllen von Behältnissen, insbesondere zum Füllen von Säcken |
CN101070097A (zh) * | 2007-06-19 | 2007-11-14 | 邱恩博 | 阀口秤气囊涨持式持袋结构 |
DE102008025268A1 (de) * | 2008-05-27 | 2009-12-03 | Haver & Boecker Ohg | Verfahren und Füllanlage zum Befüllen von Säcken |
CN101905750A (zh) * | 2009-06-08 | 2010-12-08 | 方先其 | 一种阀口包装机气吹式出料口 |
-
2013
- 2013-06-04 DE DE102013009284.1A patent/DE102013009284A1/de not_active Withdrawn
-
2014
- 2014-05-30 WO PCT/EP2014/061243 patent/WO2014195235A1/de active Application Filing
- 2014-05-30 ES ES14727493T patent/ES2706231T3/es active Active
- 2014-05-30 EP EP14727493.0A patent/EP3003864B1/de active Active
- 2014-05-30 CN CN201480031858.2A patent/CN105263805B/zh active Active
- 2014-05-30 DK DK14727493.0T patent/DK3003864T3/da active
Non-Patent Citations (1)
Title |
---|
See references of WO2014195235A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN105263805A (zh) | 2016-01-20 |
DK3003864T3 (da) | 2019-02-11 |
EP3003864B1 (de) | 2018-10-17 |
ES2706231T3 (es) | 2019-03-27 |
DE102013009284A1 (de) | 2014-12-04 |
WO2014195235A1 (de) | 2014-12-11 |
CN105263805B (zh) | 2018-04-17 |
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