EP1860027B1 - Method and facility for filling containers, in particular for filling sacks - Google Patents
Method and facility for filling containers, in particular for filling sacks Download PDFInfo
- Publication number
- EP1860027B1 EP1860027B1 EP07010230A EP07010230A EP1860027B1 EP 1860027 B1 EP1860027 B1 EP 1860027B1 EP 07010230 A EP07010230 A EP 07010230A EP 07010230 A EP07010230 A EP 07010230A EP 1860027 B1 EP1860027 B1 EP 1860027B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filling
- container
- pressure
- controlled
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 70
- 238000003860 storage Methods 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims description 21
- 238000005086 pumping Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 5
- 239000004566 building material Substances 0.000 abstract description 3
- 238000005429 filling process Methods 0.000 description 33
- 230000007423 decrease Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 238000013022 venting Methods 0.000 description 7
- 238000005303 weighing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000009530 blood pressure measurement Methods 0.000 description 3
- 239000013590 bulk material Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000004584 weight gain Effects 0.000 description 2
- 235000019786 weight gain Nutrition 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 208000035859 Drug effect increased Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- -1 inter alia Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
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 invention relates to a method for filling containers, in particular sacks, with pourable materials, wherein the container is attached to an opening with a filling device, the pourable material is fed from a reservoir of the filling device and is introduced therefrom into the container.
- the invention relates to a system for filling containers, in particular valve bags, with pourable materials.
- the system comprises at least one filling device with which the container, the pourable material is supplied and to which the container is received. Furthermore, a conveying member for transporting material through the filling device is provided in the container.
- a removal device for removing the filled container from the filling device is provided. Furthermore, the removed container can be automatically transported to a further processing position.
- Bulk materials such as u. a. Building materials or chemicals in granular or powder form are filled into containers in containers in the form of sacks, in particular in valve sacks. The sealed valve bags are then transported to the consumer.
- the material is mixed with the filling of the valve bags in the air to give the material the necessary bulk or flowability.
- venting devices are provided in order to allow a pressure reduction from a filled valve bag. These can be designed either in the form of evenly distributed or unevenly distributed over the outer surface or in particular in the seam region of the valve bag, only permeable to air outlet openings.
- the pressure reduction is not fast enough, so that in the valve bag during filling itself and also after the end of the filling usually still there is an overpressure. This overpressure would result in the direct removal of the valve bag directly after the filling process to a significant leakage of the filled material from the bag, even if a self-closing valve bag is used, which automatically seals the valve by the material present in the interior substantially.
- a significant leakage of material during the decrease has the consequence that the effective mass of the filled valve bag deviates from the nominal mass.
- a material leakage can lead to a very significant contamination of the system and its surroundings.
- a valve bag is left after completion of the filling process for a certain residence time at the filling pipe in the system.
- the residence time is calculated so that at its end the pressure inside the valve bag has decreased so much that when removing the valve bag from the filling tube no material material leakage occurs more.
- a filling system and a method for filling bulk goods in valve sacks that have been used for this purpose have become known, in which a measuring probe is provided on the filling tube, which detects the pressure inside the sack after the end of the filling process. At the same time, the sacks are filled by eg 5% beyond the desired weight. At the end of the filling process, the inside of the bag is now connected to a pressure equalization channel through which active air can also be extracted. At the same time, material is released from the valve bag and at the same time the internal pressure in the bag decreases. After reaching the desired final weight, the bag is removed when the set waiting time or the set pressure in the bag is reached. By this method, a sufficient adjustment of the final weight can be achieved and pollution of the plant environment can be largely avoided.
- a disadvantage of the known method is that the throughput drops, as overfilling over the nominal weight and a subsequent venting takes place with material removal. Since the throughput of bags is a significant purchase criterion, the known device and its use leads only to low filling rates. If the suction of the additionally filled material is active on applying a negative pressure, also increase the cost of equipment and operating costs.
- the invention solves this problem by controlling the pressure p prevailing in the container and, during the filling of the container, controlling at least one filling parameter as a function of the pressure p prevailing in the container in order to ensure effective processing of the container.
- the method according to claim 1 is used for processing containers, in particular sacks and preferably valve sacks.
- the container is attached to an opening with a filling device and filled with pourable materials.
- the pourable material is supplied from a reservoir of the filling device and introduced by means of a conveying member into the container, while a representative measure of the pressure prevailing in the container is measured.
- at least one filling parameter e.g. the air supply, controlled in response to the prevailing pressure in the container.
- control device which detects the pressure prevailing in the container by means of a pressure sensor of a measuring device internal pressure and during the filling of the material in the container at least one filling parameter of the filling process, in particular the air supply, depending on the in the container prevailing pressure p or internal pressure controls.
- the system according to the invention according to claim 14 is a system for processing containers, in particular valve bags.
- the system contains a filling tube for receiving the container.
- the container can be fixed with an opening on the filling tube and filled with pourable materials through the filling tube.
- a conveying member is provided for transporting material through the filling tube into the container.
- the system is characterized by a control device which detects by means of a pressure sensor of a measuring device the pressure prevailing in the container during filling internal pressure and during filling of the material in the container at least one filling parameter of the filling process, in particular the air supply, depending on the prevailing in the container Pressure p controls.
- An advantage is the effective processing of the containers, which leads to a high clock rate.
- By controlling one or more filling parameters as a function of the prevailing internal pressure a short filling time is achieved, while at the same time allowing a small waiting time until the container is taken off.
- the filling parameters are controlled according to the invention such that both the actual filling process and the subsequent waiting time for the pressure reduction are optimized as a whole.
- a bulk material which lasts for days or weeks in a silo, a lower proportion of air than freshly filled in the silo products.
- a product that has already been filled in the storage container or in the silo for a certain supply air flow has optimum filling properties, while a product freshly filled into the silo requires less supply air for optimal filling.
- Another filling parameter for setting and controlling the filling process is in particular the conveying speed of the conveying member. If the internal pressure in the container increases too much, the conveying speed of the conveying member can be reduced.
- the current weight of the container to be filled or the already filled amount of material for controlling the filling process is preferably taken into account.
- the processing of the container basically also includes the removal of the container from the filling device or the filling tube.
- a closure of the container may be provided.
- admixing air In a packing machine, there are several different locations for admixing air. In addition to the admixture of air on or before the conveying member and the admixture of air at or in the filling tube is common. In a further development, this proportion of air can be controlled as a function of the measured pressure p and / or of the current weight in order to obtain a good or even optimum flow behavior in the filling tube.
- the conveying element is designed as a filling turbine or as a screw conveyor, its conveying speed is controlled in particular also in dependence on the pressure p measured in the container.
- the conveying air is controlled in particular as a function of the measured pressure p.
- a conveying member preferably also a pump is used, the pump stroke and / or pump frequency is controlled.
- a control of the conveying member also takes place in dependence on the weight of the already filled into the container product.
- a control of the metering position of a metering device takes place not only as a function of the product weight being filled, but also as a function of the pressure p measured or determined in the container.
- the delivery of the conveying member can also be stopped when the pressure p in the container exceeds a predetermined level. After a corresponding pressure drop, the production is then increased again in stages or steplessly.
- the preferably provided between the filling tube and container Blähmanschette is inflated only when the pressure p in the container exceeds a predetermined characteristic value. Before inflation, the air can escape through the gap, which already causes a lower overpressure during filling. However, if the overpressure exceeds a certain level, material filled in the container may also undesirably be discharged through the gap again. Preferably, the pressure in the Blähmanschette therefore only reduced when the pressure p in the container falls below a predetermined limit.
- the waiting time is adapted to the prevailing pressure conditions and the container removed when the pressure prevailing in the container p falls below a predetermined limit.
- One advantage is, for example, that the weight accuracy is increased at a high filling speed, since the removal of the bag does not result in any leakage of filling material caused by increased inner bag pressure.
- Another advantage is that the filling time is optimized because the waiting time after completing the filling process is not unnecessarily long is selected.
- the waiting time is adapted to the actual conditions and is therefore never too short and never too long.
- the processing time is optimized, i. the sum of fill time and settling time.
- the invention further brings, inter alia, the advantage that a leakage of the container for the material to be filled can be detected early, since an unexpected pressure drop is detectable. Then the further filling process is stopped.
- the method according to the invention comprises, as further processing steps, removal of the container from the filling device and / or closing by e.g. a welding of the bag opening.
- air may be added to the material to hold or transport the material. This can be controlled in dependence on the measured pressure p. Furthermore, a setting or control of the speed with which the material is introduced into the container, which preferably takes place as a function of the measured pressure p, is preferred.
- the present invention avoids or flattenes any pressure spikes that may occur by reducing the filling rate when the pressure exceeds predetermined or selectable limits.
- a very significant advantage is that due to high pressures caused destruction of bags with subsequent Contamination of the system can be avoided, for example by powdery fillers or their frequency can be largely reduced.
- the control of the entire filling process is carried out in dependence on the pressure prevailing in the container, so that during the entire filling process, the pressure occurring is kept below the maximum permissible pressure.
- the filling process can also be specifically controlled so that the maximum pressure is never reached or exceeded, but the pressure is controlled so that it runs as little as possible below the maximum permissible pressure during the entire filling process.
- in addition to or in combination with a conventional control depending on the filling material and the pressure occurring can be taken into account. A redundancy is advantageous here.
- the pressure-dependent control allows a faster response to errors in the filling process.
- the measuring device is connected to a control unit controlling the filling process for exchanging data.
- the measuring device can be assigned an evaluation unit, which can be connected to the control unit for exchanging data.
- the measuring device is designed as mounted on or in the filling tube pressure sensor, which receives a measure of the pressure present in the container.
- pressure measuring cans piezoelectric pressure sensors or semiconductor pressure sensors can be used for pressure measurement.
- a removal device can be provided which serves to remove the filled container from the filling tube and to move the container to a further processing position.
- pourable or flowable materials such as, inter alia, building materials, cements, minerals, chemicals in powder form or as granules, crystalline, fine or coarse and powdery substances used for color production soot particles or TiO 2 particles or Containing TiO 2 containing substances and food in corresponding containers made of different materials or packed.
- inventive system 1 is a packing machine 2, which is designed here in the embodiment as a rotating system, which is drivable in the direction of arrow a.
- the packing machine 2 contains six filling devices designed as filling tubes 3, to which, as in FIG Fig. 2 shown in more detail, valve sacks 4 are pushed with openings 5.
- valve bags 4 are inventively with the help of a gripper member, which is not shown in the figures, taken from a stock coming and pushed or shot by means of a slip-on the filling tubes 3.
- the system 1 is provided with a discharge belt 6 for the removal of the filled and discarded valve bags 4. It can be done directly on the discharge conveyor 6, the discharge or another gripper member may be provided, which provides the valve bags 4 on the discharge belt 6. Welding of the valve bags 4 can be done before storage on the discharge belt 6 or thereafter in an additional station.
- valve bag 4 is pushed with its opening 5 on the filling tube 3.
- the valve bag 4 is held with a attached to an outer side 3 a of the filling tube 3 Blähmanschette 7 and sealed to the environment.
- the inflating sleeve 7 engages an inner wall 8b of a portion 8 of the valve bag 4 serving to fasten the valve bag 4 to the filling tube 3.
- a characteristic value for the pressure in the valve bag is received via a pressure sensor 10.
- the pressure sensor 10 is selected and attached to such a position that the measured pressure essentially corresponds to the pressure in the interior of the valve bag 4 or can be derived on the basis of the measuring signal.
- the signal from the pressure sensor 10 is evaluated and used to control the filling process.
- the air supply is controlled in dependence on the detected pressure in order to obtain an optimum filling process, so that the sack sequence number is as large as possible.
- the pressure sensor 10 extends through a wall of the filling tube 3, so that it receives the pressure p in the interior of the filling tube 3.
- This embodiment is particularly suitable for retrofitting existing systems, since only the sensor has to be arranged and the control system has to be changed over in order to control the filling process as a function of the detected pressure.
- a pressure sensor 10 is provided, which receives the pressure prevailing in the interior of the bag via a pressure receiving opening 9 and a measuring channel or a measuring line 13.
- the pressure receiving opening 9 may e.g. be provided in a front region of the filling tube 3 in the vicinity of the discharge opening for the filling material.
- the opening is provided in a lower portion of the fill tube spaced from the exit opening to prevent ingress of fill material.
- the measuring line 13 can be blown out by a short burst of air.
- the measuring line 13 can have a first channel 13a in the filling tube and a second portion 13b, which is designed as a flexible or rigid line. Even with a few meters long line a quick response time is possible because pressure disturbances propagate at the speed of sound, so that a sufficient control speed can be achieved.
- the measured pressure values are buffered in a digital evaluation unit 11 assigned to the pressure sensor 10 and transferred to a central control unit 14. Based on the measured data, the filling process is controlled.
- a valve bag to be filled 4 To determine the level in a valve bag to be filled 4 is an in Fig. 2 schematically illustrated weighing device 12 is provided.
- the mass values of the valve bag 4 measured by the weighing device 12 are sent to an electronic processing unit 15.
- the electronic processing unit 15 is connected to the central control unit 14, which controls the conveying member 16.
- To increase the bulk or fluidity can be supplied via an air supply 17 air, for example, to solve caking.
- the electronic processing unit 15 may indicate from the mass values measured by the weighing device 12 the net mass corresponding to the filled amount of material 18.
- the process according to the invention or the plant according to the invention takes place or works as follows. If a valve bag 4 has been pushed by a slip-on machine or by hand on a filling tube 3, the filling process is started, which is initiated by the electronic control unit 14. At a suitable time, the Blähmanschette 7 is set. This occurs in particular when the pressure inside the bag exceeds a predetermined level. The exact height depends on the type of product to be filled.
- the conveying member 16 from a silo or the like. Supplied material 18 is introduced through the filling tube 3 in the valve bag 4. In this case, the mass of the filled material 18 is determined either continuously or essentially continuously by the weighing device 12 and the measured values are forwarded to the processing unit 15 and to the control unit 14, which simultaneously evaluates the signals of the pressure sensor 10 and takes it into account in the control ,
- the pressure in a short initial phase of the filling process can be selected to be high in order to facilitate deployment of wrinkles in the bottom region of the valve bag 4.
- the end of the iA is up to a few ten-seconds filling process towards the pressure to achieve a corresponding compression effect increased.
- about the last 5 to 10% of the filling material 18 are filled under relatively high pressure.
- the optimum pressure curve is usually determined empirically and varies from product to product.
- the ambient conditions pressure, temperature, humidity
- the pressure prevailing in the valve bag 4 is detected during the entire filling process and also thereafter by the pressure sensor 10 and forwarded to the units controlling the entire operating sequence.
- the pressure measurement is carried out continuously.
- the end of the filling process is initiated in one embodiment of the invention by the central control unit 14 when it is communicated by the processing unit 15 on the basis of the mass values determined by the weighing device 12, a reaching a presettable target mass.
- the pressure curve is further measured and the immediately or possibly delayed delayed onset of the pressure p detected by the pressure sensor 10.
- the existing in the valve bag 4 air can escape through attached to the outer surface of the valve bag 4, only permeable to the air openings 19, so that the built-up internal pressure is reduced.
- a particular one is in the digital evaluation unit 11 and / or the central control unit 14 adjustable pressure threshold p o deposited, below which the risk of unintentional material leakage is eliminated when a decrease in the valve bag 4.
- the central control unit 14 actuates the bag removal unit in order to remove or discard the filled valve bag 4 from the filling tube 3.
- the pressure threshold p o is in the region of an overpressure in the interior of the valve sack 4 at, for example, 25 mbar. Depending on the application, the pressure threshold may also be greater and, for example, be 50 mbar or smaller. It is understood that the pressure threshold p o depends not only on the nature of the material to be filled and its structure or graininess, but also on the type, size and material of the container.
- the time for falling below the pressure threshold p o may correspond to the filling time and exceed this.
- the time can be tens of seconds or more.
- the evaluation unit 11 can also determine a pressure gradient .DELTA.p / .DELTA.t of the pressure decrease and this at its constancy or, if the change is below a predetermined size, passed to the central control unit 14. The central control unit 14 then initiates all steps for removal of the valve bag 4 from the filling tube.
- the operation according to the invention preferably includes a switch-off protection which is provided by the central control unit 14 is activated in the presence of an abrupt predetermined pressure drop ⁇ p ⁇ 0 or a stagnation of the pressure for a predetermined period of time .DELTA.t.
- a switch-off protection which is provided by the central control unit 14 is activated in the presence of an abrupt predetermined pressure drop ⁇ p ⁇ 0 or a stagnation of the pressure for a predetermined period of time .DELTA.t.
- the pressure values recorded by the pressure sensor 10 can also be used to keep the pressure below a maximum pressure p max during the entire filling process. This is achieved via a control of the conveying member 16 and / or the air supply 17 as a function of the measured pressure p.
- the flow rate of filling material can be reduced or completely interrupted.
- the invention makes it possible to control the entire filling operation as a function of the determined pressure values p in the valve bag 4 to be filled.
- the central control unit 14 can control the process by means of a combination of the mass values recorded by the weighing device 12 and those of the pressure sensor 10 perform pressure measurements p.
- Fig. 3 is a possible course for a filling process with a filling material shown.
- other temporal courses may occur, so that the representation after Fig. 3 for illustrative purposes only.
- No additional air was used, so that the pure filling material was filled, which coincidentally has the properties shown here.
- This is a product which has only recently been filled into the silo and the storage container 31, so that a certain amount of air is still contained in the product stored in the storage container 31. This results in effective filling even without the use of additional air.
- the curve 20 represents the course of weight when filling a bag with a bulk material, while the curve 21 shows the pressure curve over time.
- the curve 22 shows the operating state of the conveying member over time.
- the delivery member is set to coarse flow mode for a period of time 28a. During this period, the weight gain is large and here in the exemplary embodiment almost linear with time. At time 24, the predetermined limit weight is reached, which here is about 22 kg, and it is switched to fine flow during the time period 28b until the final weight of here e.g. about 25 kg is reached.
- the bag can be removed directly, since a take-off pressure 27 of 50 mbar was specified here.
- the take-off pressure 27 has different values. For lighter and finer materials, the limit is smaller.
- the bag can be removed without leaving too much material.
- the process can be optimally adapted to the bulk material used and the bags used.
- the filling time including the settling time a total of 9.8 seconds until the bag can be removed.
- the turbine speed may be lower or higher depending on the type of turbine, etc.
- the bag venting depends on the material type of the bag. Simultaneously with the achievement of the desired bag weight, the bag can be removed here, since only very low pressures are achieved.
- FIG. 4 Another example of a weight curve 20 and a pressure curve 21 in the filling of bulk goods 18 is in Fig. 4 shown.
- a lot of air was added to increase the flowability of the material. This is the case, for example, if a material which is difficult to flow is filled or if the material already has a longer residence time in the silo or storage container 31.
- Fig. 4 the compressed air and the weight course for the basically same product as in Fig. 3 shown.
- the steeper weight gain in the bag so that the switching time 24 for switching from the coarse flow into the fine flow occurs much earlier, namely after about 3.7 seconds, while the coarse flow phase 28a took place in the filling shown in Figure after about 5 seconds.
- the high percentage of air in the filling decreases Fig. 4 in that the fine flow phase 28b is considerably longer than the fine flow phase 28b in the case of the filling example Fig. 3 so that the total filling time is 10.5 seconds. Since the inner bag pressure at the end of the filling process is about 180 millibars, a waiting time of 28c of almost 5 seconds must be maintained until the pressure inside the bag has dropped to 50 millibars after about 15 seconds and the bag can be removed. According to the filling example Fig. 3 the processing time is only 9.8 seconds. This difference of about 5 seconds leads to a considerably higher filling rate and thus to a more economical plant.
- the control of the supply air leads to the fact that although a longer coarse flow phase 28a is present at about 4.2 seconds, but the total processing time is only about 7.2 seconds until the overpressure in the bag to the take-off pressure of 50 Millibar has mined.
- the filling time is here 6.8 seconds and the max. Overpressure 60 millibars.
- the turbine speed is also 650 revolutions per second.
- the processing time of the bag was more than halved from about 15 seconds to 7.2 seconds.
- the processing time was opposite to in Fig. 3 bottling without additional air also significantly reduced from 9.8 seconds to about 7.2 seconds.
- the optimum air supply also depends considerably on the allowable pressure decrease 27, for example, if only a decrease pressure of 25 millibars is allowed, the filling time is in the example after Fig. 5 and in the example below Fig. 3 each about 10 seconds while following the example Fig. 4 extended even further.
- the sudden pressure drop at about 15 seconds in the illustration after Fig. 4 results here by the decrease of the bag, while the bag in the presentation after Fig. 5 was allowed to hang even further, although the permissible pressure drop 27 was exceeded.
- the maximum overpressure in the measurement is for Fig. 3 23 millibars, when measuring for Fig. 4 on the other hand 227 millibars and in the measurement for Fig. 5 60 millibar.
- Fig. 6 is a schematic diagram of the reservoir 31 and the Greesembly with the here designed as a filling turbine conveyor member 16 and the filling tube 3 is shown.
- the rotational speed of the conveyor turbine 16 the position of the metering device 32 and the supply air via the supply air channels 33 are set so that the desired filling conditions are present.
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Befüllen von Behältnissen, insbesondere Säcken, mit schüttfähigen Materialien, wobei das Behältnis mit einer Öffnung an eine Fülleinrichtung angesetzt wird, das schüttfähige Material aus einem Vorratsbehälter der Fülleinrichtung zugeführt und daraus in das Behältnis eingebracht wird.The invention relates to a method for filling containers, in particular sacks, with pourable materials, wherein the container is attached to an opening with a filling device, the pourable material is fed from a reservoir of the filling device and is introduced therefrom into the container.
Ebenso betrifft die Erfindung eine Anlage zum Befüllen von Behältnissen, insbesondere Ventilsäcken, mit schüttfähigen Materialien. Dabei umfasst die Anlage wenigstens eine Fülleinrichtung, mit welchem dem Behältnis das schüttfähige Material zugeführt wird und an dem das Behältnis aufgenommen wird. Weiterhin ist ein Förderorgan zum Transport von Material durch die Fülleinrichtung in das Behältnis vorgesehen. Gegebenenfalls ist eine Abnahmeeinrichtung zur Abnahme des befüllten Behältnisses von der Fülleinrichtung vorgesehen. Weiterhin kann das abgenommene Behältnis automatisch in eine Weiterverarbeitungsposition transportiert werden.Likewise, the invention relates to a system for filling containers, in particular valve bags, with pourable materials. In this case, the system comprises at least one filling device with which the container, the pourable material is supplied and to which the container is received. Furthermore, a conveying member for transporting material through the filling device is provided in the container. Optionally, a removal device for removing the filled container from the filling device is provided. Furthermore, the removed container can be automatically transported to a further processing position.
Schüttfähige Materialien wie u. a. Baustoffe oder Chemikalien in Granulat- oder Pulverform werden in Füllanlagen in Behältnisse in Form von Säcken, insbesondere in Ventilsäcke, gefüllt. Die verschlossenen Ventilsäcke werden dann zum Verbraucher transportiert.Bulk materials such as u. a. Building materials or chemicals in granular or powder form are filled into containers in containers in the form of sacks, in particular in valve sacks. The sealed valve bags are then transported to the consumer.
Dabei wird dem Material bei der Abfüllung in die Ventilsäcke Luft beigemischt, um dem Material die notwendige Schütt- bzw. Fließfähigkeit zu verleihen.In this case, the material is mixed with the filling of the valve bags in the air to give the material the necessary bulk or flowability.
Die im Material enthaltene bzw. beigemischte Luft führt zu einem Überdruck in dem Ventilsack. Um einen Druckabbau aus einem befüllten Ventilsack zu ermöglichen, sind Entlüftungseinrichtungen vorgesehen. Diese können entweder in Form von gleichmä-ßig oder ungleichmäßig über die Außenfläche oder insbesondere im Nahtbereich des Ventilsackes verteilten, lediglich für Luft durchlässigen Austrittsöffnungen ausgeführt sein. Der Druckabbau erfolgt aber nicht schnell genug, so dass in dem Ventilsack beim Füllen selbst und auch nach dem Ende des Füllvorgangs in der Regel noch ein Überdruck herrscht. Dieser Überdruck würde bei der direkten Abnahme des Ventilsackes direkt nach dem Füllvorgang zu einem erheblichen Austritt des eingefüllten Materials aus dem Sack führen, auch wenn ein selbstverschließender Ventilsack verwendet wird, der das Ventil durch das im Inneren vorhandene Material selbsttätig im Wesentlichen abdichtet.The air contained or admixed in the material leads to an overpressure in the valve bag. In order to allow a pressure reduction from a filled valve bag, venting devices are provided. These can be designed either in the form of evenly distributed or unevenly distributed over the outer surface or in particular in the seam region of the valve bag, only permeable to air outlet openings. However, the pressure reduction is not fast enough, so that in the valve bag during filling itself and also after the end of the filling usually still there is an overpressure. This overpressure would result in the direct removal of the valve bag directly after the filling process to a significant leakage of the filled material from the bag, even if a self-closing valve bag is used, which automatically seals the valve by the material present in the interior substantially.
Ein erheblicher Materialaustritt bei der Abnahme hat zur Folge, dass die effektive Masse des befüllten Ventilsackes von der Nennmasse abweicht. Daneben kann ein Materialaustritt zu einer ganz erheblichen Verunreinigung der Anlage und ihrer Umgebung führen.A significant leakage of material during the decrease has the consequence that the effective mass of the filled valve bag deviates from the nominal mass. In addition, a material leakage can lead to a very significant contamination of the system and its surroundings.
Zur Vermeidung der vorgenannten Nachteile wird deshalb ein Ventilsack nach der Beendigung des Einfüllvorgangs noch für eine gewisse Verweildauer an dem Füllrohr in der Anlage belassen. Die Verweildauer wird dabei so bemessen, dass an ihrem Ende der Überdruck im Inneren des Ventilsackes so weit abgenommen hat, dass bei einer Entnahme des Ventilsackes von dem Füllrohr kein wesentlicher Materialaustritt mehr auftritt.To avoid the aforementioned disadvantages, therefore, a valve bag is left after completion of the filling process for a certain residence time at the filling pipe in the system. The residence time is calculated so that at its end the pressure inside the valve bag has decreased so much that when removing the valve bag from the filling tube no material material leakage occurs more.
Aus der
Nachteilig an dem bekannten Verfahren ist allerdings, dass der Durchsatz sinkt, da ein Überfüllen über das Nenngewicht und eine anschließende Entlüftung mit Materialabfuhr erfolgt. Da der Durchsatz an Säcken ein erhebliches Kaufkriterium ist, führt die bekannte Vorrichtung und deren Verwendung nur zu geringen Abfüllraten. Wenn die Absaugung des zusätzlich eingefüllten Materials aktiv über Anlegung eines Unterdrucks erfolgt, steigen außerdem der apparative Aufwand und die Betriebskosten.A disadvantage of the known method, however, is that the throughput drops, as overfilling over the nominal weight and a subsequent venting takes place with material removal. Since the throughput of bags is a significant purchase criterion, the known device and its use leads only to low filling rates. If the suction of the additionally filled material is active on applying a negative pressure, also increase the cost of equipment and operating costs.
Gegenüber dem bekannten Stand der Technik ist es deshalb die Aufgabe der vorliegenden Erfindung, ein Verfahren und eine Anlage zum Befüllen eines Behältnisses mit einem schüttfähigen Material zur Verfügung zu stellen, womit eine saubere Abfüllung und ein hoher Durchsatz möglich ist.Compared to the known prior art, it is therefore the object of the present invention to provide a method and a system for filling a container with a free-flowing material, whereby a clean filling and a high throughput is possible.
Diese Aufgabe wird gelöst durch das Verfahren mit den Merkmalen des Anspruchs 1 und durch die Vorrichtung mit den Merkmalen des Anspruchs 14. Bevorzugte Weiterbildungen sind Gegenstand der Unteransprüche.This object is achieved by the method having the features of claim 1 and by the device having the features of
Bei dem eingangs genannten Verfahren löst die Erfindung diese Aufgabe dadurch, dass der im Behältnis herrschende Druck p gemessen und während des Füllens des Behältnisses wenigstens ein Füllparameter in Abhängigkeit von dem im Behältnis herrschenden Druck p gesteuert wird, um eine effektive Verarbeitung des Behältnisses zu gewährleisten.In the method mentioned in the introduction, the invention solves this problem by controlling the pressure p prevailing in the container and, during the filling of the container, controlling at least one filling parameter as a function of the pressure p prevailing in the container in order to ensure effective processing of the container.
Das Verfahren nach Anspruch 1 dient zur Verarbeitung von Behältnissen, insbesondere Säcken und vorzugsweise Ventilsäcken. Dabei wird das Behältnis mit einer Öffnung an eine Fülleinrichtung angesetzt und mit schüttfähigen Materialien gefüllt. Das schüttfähige Material wird aus einem Vorratsbehälter der Fülleinrichtung zugeführt und mittels eines Förderorgans in das Behältnis eingebracht, während ein repräsentatives Maß für den in dem Behältnis herrschenden Druck gemessen wird. Während des Füllens des Behältnisses mit dem Material wird wenigstens ein Füllparameter, wie z.B. die Luftzufuhr, in Abhängigkeit von dem im Behältnis herrschenden Druck gesteuert.The method according to claim 1 is used for processing containers, in particular sacks and preferably valve sacks. The container is attached to an opening with a filling device and filled with pourable materials. The pourable material is supplied from a reservoir of the filling device and introduced by means of a conveying member into the container, while a representative measure of the pressure prevailing in the container is measured. During filling of the container with the material at least one filling parameter, e.g. the air supply, controlled in response to the prevailing pressure in the container.
Die Aufgabe wird bei der eingangs genannten Anlage durch eine Steuereinrichtung gelöst, die mittels eines Drucksensors einer Messeinrichtung den im Behältnis herrschenden Innendruck erfasst und während des Abfüllens des Materials in das Behältnis wenigstens einen Füllparameter des Füllvorgangs, insbesondere die Luftzufuhr, in Abhängigkeit von dem im Behältnis herrschenden Druck p bzw. Innendruck steuert.The object is achieved in the aforementioned plant by a control device which detects the pressure prevailing in the container by means of a pressure sensor of a measuring device internal pressure and during the filling of the material in the container at least one filling parameter of the filling process, in particular the air supply, depending on the in the container prevailing pressure p or internal pressure controls.
Die erfindungsgemäße Anlage nach Anspruch 14 ist eine Anlage zur Verarbeitung von Behältnissen, insbesondere Ventilsäcken. Die Anlage enthält ein Füllrohr zur Aufnahme des Behältnisses. Das Behältnis ist mit einer Öffnung an dem Füllrohr festlegbar und durch das Füllrohr mit schüttfähigen Materialien befüllbar. Ein Förderorgan ist zum Transport von Material durch das Füllrohr in das Behältnis vorgesehen. Die Anlage ist gekennzeichnet durch eine Steuereinrichtung, die mittels eines Drucksensors einer Messeinrichtung den im Behältnis während des Abfüllens herrschenden Innendruck erfasst und die während des Abfüllens des Materials in das Behältnis wenigstens einen Füllparameter des Füllvorgangs, insbesondere die Luftzufuhr, in Abhängigkeit von dem im Behältnis herrschenden Druck p steuert.The system according to the invention according to
Die Erfindung hat erhebliche Vorteile. Ein Vorteil ist die effektive Verarbeitung der Behältnisse, die zu einer hohen Taktrate führt. Durch die Steuerung eines oder mehrerer Füllparameter in Abhängigkeit von dem herrschenden Innendruck wird eine kurze Abfüllzeit erreicht, während gleichzeitig eine geringe Wartezeit bis zur Abnahme des Behältnisses ermöglicht wird.The invention has considerable advantages. An advantage is the effective processing of the containers, which leads to a high clock rate. By controlling one or more filling parameters as a function of the prevailing internal pressure, a short filling time is achieved, while at the same time allowing a small waiting time until the container is taken off.
Die Füllparameter werden erfindungsgemäß derart gesteuert, dass sowohl der eigentliche Füllvorgang und auch die anschließende Wartezeit für den Druckabbau insgesamt optimiert werden.The filling parameters are controlled according to the invention such that both the actual filling process and the subsequent waiting time for the pressure reduction are optimized as a whole.
Es hat sich herausgestellt, dass nicht nur unterschiedliche Produkte unterschiedliche Füllparameter benötigen, sondern dass auch für das gleiche Produkt in Abhängigkeit von der Lagerzeit des Produkts im Vorratsbehälter und/oder vorgeschaltetem Silo unterschiedliche Füllparameter optimal sind.It has been found that not only different products require different filling parameters, but that also for the same product depending on the storage time of the product in the reservoir and / or upstream silo different filling parameters are optimal.
Beispielsweise hat ein Schüttgut, welches sich tage- oder wochenlang in einem Silo aufhält, einen geringeren Luftanteil als frisch in das Silo eingefüllte Produkte. Das führt dazu, dass ein schon länger im Vorratsbehälter oder im Silo eingefülltes Produkt bei einem bestimmten Zuluftstrom optimale Eigenschaften zum Einfüllen aufweist, während ein frisch in das Silo eingefülltes Produkt weniger Zuluft für eine optimale Abfüllung benötigt.For example, a bulk material, which lasts for days or weeks in a silo, a lower proportion of air than freshly filled in the silo products. As a result, a product that has already been filled in the storage container or in the silo for a certain supply air flow has optimum filling properties, while a product freshly filled into the silo requires less supply air for optimal filling.
Bei gleichem Zuluftanteil kann das bei einem frisch in das Silo eingefüllten Produkt zu unerwünschten Druckspitzen im Behältnis führen, wodurch der Füllvorgang insgesamt verlangsamt wird. Gleichzeitig steigt auch die Beruhigungszeit bis der Druck sich im Sackinneren auf das angestrebte Maß verringert hat. Eine geringere Zuluftmenge beim Abfüllen des Materials in das Behältnis kann deshalb bei z.B. frisch in den Silo eingefüllten Produkten zu einer höheren Abfüllleistung führen.With the same supply air content that can lead to undesirable pressure peaks in the container at a freshly filled in the silo, whereby the filling process is slowed down as a whole. At the same time, the settling time increases until the pressure inside the bag has reduced to the desired level. A lower supply air quantity when filling the material into the container can therefore be used at e.g. fresh products filled in the silo lead to a higher filling capacity.
Ein weiterer Füllparameter zur Einstellung und Steuerung des Füllvorgangs ist insbesondere die Fördergeschwindigkeit des Förderorgans. Wenn der Innendruck im Behältnis zu stark ansteigt, kann die Fördergeschwindigkeit des Förderorgans reduziert werden.Another filling parameter for setting and controlling the filling process is in particular the conveying speed of the conveying member. If the internal pressure in the container increases too much, the conveying speed of the conveying member can be reduced.
In allen Ausgestaltungen wird vorzugsweise das aktuelle Gewicht des zu füllenden Behältnisses bzw. die schon abgefüllte Materialmenge zur Steuerung des Füllvorgangs berücksichtigt.In all embodiments, the current weight of the container to be filled or the already filled amount of material for controlling the filling process is preferably taken into account.
In allen Fällen umfasst die Verarbeitung des Behältnisses grundsätzlich auch das Entfernen des Behältnisses von der Fülleinrichtung bzw. dem Füllrohr. Insbesondere kann auch ein Verschließen des Behältnisses vorgesehen sein.In all cases, the processing of the container basically also includes the removal of the container from the filling device or the filling tube. In particular, a closure of the container may be provided.
In einer Packmaschine gibt es mehrere unterschiedliche Stellen zur Beimischung von Luft. Neben der Beimischung von Luft an dem oder vor dem Förderorgan ist auch die Beimischung von Luft am oder im Füllrohr üblich. In einer Weiterbildung ist dieser Luftanteil in Abhängigkeit von dem gemessenen Druck p und/oder von dem aktuellen Gewicht steuerbar, um ein gutes oder sogar optimales Fließverhalten im Füllrohr zu erhalten.In a packing machine, there are several different locations for admixing air. In addition to the admixture of air on or before the conveying member and the admixture of air at or in the filling tube is common. In a further development, this proportion of air can be controlled as a function of the measured pressure p and / or of the current weight in order to obtain a good or even optimum flow behavior in the filling tube.
Falls das Förderorgan als Füllturbine oder als Förderschnecke ausgebildet ist, wird dessen Fördergeschwindigkeit insbesondere auch in Abhängigkeit von dem im Behältnis gemessenen Druck p gesteuert.If the conveying element is designed as a filling turbine or as a screw conveyor, its conveying speed is controlled in particular also in dependence on the pressure p measured in the container.
Wenn das Füllorgan hingegen als Luftfüllsystem ausgebildet ist, wird die Förderluft insbesondere in Abhängigkeit vom gemessenen Druck p gesteuert.If, however, the filling member is designed as an air filling system, the conveying air is controlled in particular as a function of the measured pressure p.
Als Förderorgan wird vorzugsweise auch eine Pumpe eingesetzt, deren Pumpenhub und/oder Pumpenfrequenz gesteuert wird.As a conveying member preferably also a pump is used, the pump stroke and / or pump frequency is controlled.
Weiterhin erfolgt eine Steuerung des Förderorgans auch in Abhängigkeit von dem Gewicht des bereits in das Behältnis abgefüllten Produkts.Furthermore, a control of the conveying member also takes place in dependence on the weight of the already filled into the container product.
Vorteilhafterweise erfolgt eine Steuerung der Dosierstellung einer Dosiereinrichtung nicht nur in Abhängigkeit von dem abgefüllten Produktgewicht, sondern auch in Abhängigkeit von dem im Behältnis gemessenen oder bestimmten Druck p.Advantageously, a control of the metering position of a metering device takes place not only as a function of the product weight being filled, but also as a function of the pressure p measured or determined in the container.
Beispielsweise kann vorzeitig von dem Grobstrom auf einen Feinstrom umgeschaltet werden, wenn der im Behältnis vorherrschende Druck z.B. ein vorbestimmtes Maß überschreitet. Es ist auch eine kontinuierliche Anpassung (Verringerung oder Vergrö-ßerung) des Produktstroms möglich. Insbesondere kann die Förderung des Förderorgans auch gestoppt werden, wenn der Druck p in dem Behältnis ein vorbestimmtes Maß überschreitet. Nach entsprechendem Druckabfall wird die Förderung dann wieder in Stufen oder stufenlos erhöht.For example, can be switched from the coarse flow to a fine flow prematurely, if the prevailing in the container Pressure eg exceeds a predetermined level. It is also a continuous adjustment (reduction or increase) of the product flow possible. In particular, the delivery of the conveying member can also be stopped when the pressure p in the container exceeds a predetermined level. After a corresponding pressure drop, the production is then increased again in stages or steplessly.
Zur Beschleunigung der Entlüftung schon während des Füllens wird die vorzugsweise zwischen Füllrohr und Behältnis vorgesehene Blähmanschette erst aufgeblasen, wenn der Druck p in dem Behältnis einen vorbestimmten Kennwert überschreitet. Vor dem Aufblasen kann die Luft durch den Spalt entweichen, was schon beim Füllen einen geringeren Überdruck bewirkt. Wenn der Überdruck allerdings ein bestimmtes Maß überschreitet, kann in das Behältnis eingefülltes Material auch unerwünschterweise wieder durch den Spalt ausgetragen werden. Vorzugsweise wird der Druck in der Blähmanschette deshalb erst reduziert, wenn der Druck p in dem Behältnis einen vorbestimmten Grenzwert unterschreitet.To accelerate the venting already during filling, the preferably provided between the filling tube and container Blähmanschette is inflated only when the pressure p in the container exceeds a predetermined characteristic value. Before inflation, the air can escape through the gap, which already causes a lower overpressure during filling. However, if the overpressure exceeds a certain level, material filled in the container may also undesirably be discharged through the gap again. Preferably, the pressure in the Blähmanschette therefore only reduced when the pressure p in the container falls below a predetermined limit.
Vorzugsweise wird nach beendetem Abfüllen die Wartezeit an die vorherrschenden Druckbedingungen angepasst und das Behältnis abgenommen, wenn der im Behältnis herrschende Druck p unter einen vorbestimmten Grenzwert fällt. Ein Vorteil ist z.B., dass die Gewichtsgenauigkeit bei hoher Abfüllgeschwindigkeit erhöht wird, da bei der Abnahme des Sackes kein, durch erhöhten Sackinnendruck verursachtes, Austreten von Füllmaterial stattfindet.Preferably, after completion of filling the waiting time is adapted to the prevailing pressure conditions and the container removed when the pressure prevailing in the container p falls below a predetermined limit. One advantage is, for example, that the weight accuracy is increased at a high filling speed, since the removal of the bag does not result in any leakage of filling material caused by increased inner bag pressure.
Ein weiterer Vorteil ist, dass die Füllzeit optimiert wird, da die Wartezeit nach Beenden des Füllvorgangs nicht unnötig lang gewählt wird. Die Wartezeit wird an die tatsächlichen Bedingungen angepasst und ist deshalb nie zu kurz und nie zu lang.Another advantage is that the filling time is optimized because the waiting time after completing the filling process is not unnecessarily long is selected. The waiting time is adapted to the actual conditions and is therefore never too short and never too long.
Erfindungsgemäß wird insbesondere die Verarbeitungszeit optimiert, d.h. die Summe aus Füllzeit und Beruhigungszeit.In particular, according to the invention, the processing time is optimized, i. the sum of fill time and settling time.
Die Erfindung bringt weiterhin unter anderem den Vorteil mit sich, dass eine Undichtigkeit des Behältnisses für das einzufüllende Material frühzeitig detektiert werden kann, da ein unerwarteter Druckabfall detektierbar ist. Dann wird der weitere Füllvorgang gestoppt.The invention further brings, inter alia, the advantage that a leakage of the container for the material to be filled can be detected early, since an unexpected pressure drop is detectable. Then the further filling process is stopped.
Das erfindungsgemäße Verfahren umfasst als Weiterverarbeitungsschritte ein Entfernen des Behältnisses von der Fülleinrichtung und/oder ein Verschließen durch z.B. ein Verschweißen der Sacköffnung.The method according to the invention comprises, as further processing steps, removal of the container from the filling device and / or closing by e.g. a welding of the bag opening.
Gegebenenfalls kann Luft zum Material beigemischt werden, um das Material fließfähig zu halten oder zu transportieren. Das kann in Abhängigkeit von dem gemessenen Druck p gesteuert werden. Bevorzugt ist ferner eine Einstellung bzw. Steuerung der Geschwindigkeit, mit der das Material in das Behältnis eingebracht wird, die vorzugsweise in Abhängigkeit von dem gemessenen Druck p erfolgt.Optionally, air may be added to the material to hold or transport the material. This can be controlled in dependence on the measured pressure p. Furthermore, a setting or control of the speed with which the material is introduced into the container, which preferably takes place as a function of the measured pressure p, is preferred.
Durch die Erfindung können eventuell auftretende Druckspitzen vermieden oder abgeflacht werden, indem die Füllgeschwindigkeit verringert wird, wenn der auftretende Druck vorbestimmte oder wählbare Grenzwerte übersteigt. Es ergibt sich auch der Vorteil einer die Behältnisse und Füllanlagen-Teile schonenden Befüllung. Ein ganz bedeutender Vorteil ist, dass durch zu hohe Drücke bedingte Zerstörungen von Säcken mit anschließender Verunreinigung der Anlage etwa durch pulverförmige Füllmaterialien vermieden werden kann oder deren Häufigkeit weitgehend reduziert werden kann.The present invention avoids or flattenes any pressure spikes that may occur by reducing the filling rate when the pressure exceeds predetermined or selectable limits. There is also the advantage of a filling and container parts gentle filling. A very significant advantage is that due to high pressures caused destruction of bags with subsequent Contamination of the system can be avoided, for example by powdery fillers or their frequency can be largely reduced.
Die Steuerung des gesamten Füllvorgangs erfolgt in Abhängigkeit von dem im Behältnis herrschenden Druck derart , so dass während des gesamten Füllvorgangs der auftretende Druck unterhalb des zulässigen Maximaldrucks gehalten wird. Der Füllvorgang kann auch gezielt so gesteuert werden, dass der Maximaldruck zwar nie erreicht oder überschritten wird, der Druck aber so gesteuert wird, dass er während des gesamten Füllvorgangs möglichst wenig unterhalb des zulässigen Maximaldrucks verläuft. In Weiterbildungen kann zusätzlich oder in Kombination mit einer herkömmlichen Steuerung in Abhängigkeit von der Füllmasse auch der auftretende Druck berücksichtigt werden. Vorteilhaft ist hierbei eine Redundanz. Ebenso ermöglicht die druckabhängige Steuerung eine schnellere Reaktion auf Fehler beim Füllvorgang.The control of the entire filling process is carried out in dependence on the pressure prevailing in the container, so that during the entire filling process, the pressure occurring is kept below the maximum permissible pressure. The filling process can also be specifically controlled so that the maximum pressure is never reached or exceeded, but the pressure is controlled so that it runs as little as possible below the maximum permissible pressure during the entire filling process. In further developments, in addition to or in combination with a conventional control depending on the filling material and the pressure occurring can be taken into account. A redundancy is advantageous here. Likewise, the pressure-dependent control allows a faster response to errors in the filling process.
Bei einer Ausführung der erfindungsgemäßen Anlage ist die Messeinrichtung mit einer den Befüllvorgang steuernden Steuerungseinheit zum Austausch von Daten verbunden. Bei der Anlage kann der Messeinrichtung eine Auswertungseinheit zugeordnet sein, die mit der Steuerungseinheit zum Austausch von Daten verbindbar ist. Vorzugsweise ist die Messeinrichtung als am oder im Füllrohr angebrachter Drucksensor ausgeführt, der ein Maß für den im Behälter vorhandenen Druck aufnimmt.In one embodiment of the system according to the invention, the measuring device is connected to a control unit controlling the filling process for exchanging data. In the system, the measuring device can be assigned an evaluation unit, which can be connected to the control unit for exchanging data. Preferably, the measuring device is designed as mounted on or in the filling tube pressure sensor, which receives a measure of the pressure present in the container.
Bevorzugt können zur Druckmessung Druckmessdosen, piezoelektrische Drucksensoren oder Halbleiterdrucksensoren eingesetzt werden.Preferably, pressure measuring cans, piezoelectric pressure sensors or semiconductor pressure sensors can be used for pressure measurement.
Zur Entlüftung des wenigstens teilweise mit Material befüllten Behältnisses kann eine am Füllrohr vorgesehene Rückentlüftung benutzt werden.For venting the at least partially filled with material container provided on the filling pipe venting can be used.
Es kann eine Abnahmeeinrichtung vorgesehen sein, die zur Abnahme des befüllten Behältnisses von dem Füllrohr und zur Bewegung des Behältnisses in eine Weiterverarbeitungsposition dient.A removal device can be provided which serves to remove the filled container from the filling tube and to move the container to a further processing position.
Mit der erfindungsgemäßen Anlage und dem erfindungsgemäßen Verfahren können schütt- bzw. fließfähige Materialien wie u.a. Baustoffe, Zemente, Mineralien, Chemikalien in Pulverform oder als Granulat, kristalline, fein- oder grobkörnige sowie pulverförmige Stoffe, zur Farbherstellung benutzte Russpartikel oder TiO2-Partike oder TiO2 enthaltende Stoffe sowie Nahrungsmittel in entsprechende Behältnisse aus unterschiedlichen Materialien gefüllt bzw. gepackt werden.With the inventive system and the method according to the invention pourable or flowable materials such as, inter alia, building materials, cements, minerals, chemicals in powder form or as granules, crystalline, fine or coarse and powdery substances used for color production soot particles or TiO 2 particles or Containing TiO 2 containing substances and food in corresponding containers made of different materials or packed.
Die Erfindung wird nachfolgend unter Bezug auf die beigefügten, in unterschiedlichen Maßstäben erstellten Zeichnungen, in denen gleiche Teile mit gleichen Bezugszeichen versehen sind, an Hand eines Ausführungsbeispiels erläutert.The invention will be elucidated below with reference to the accompanying drawings, which are made in different scales and in which like parts are numbered alike, with reference to an embodiment.
Dabei zeigen:
- Fig. 1
- eine schematische Darstellung einer Abfüllanlage,
- Fig. 2
- eine Schnittdarstellung eines Teils der Anlage nach
Fig. 1 ; - Fig. 3
- ein Diagramm des Gewichts- und Druckverlaufs während des Füllens eines Sackes, wobei keine Zusatzluft zugeführt wird;
- Fig. 4
- ein Diagramm mit dem Gewichts- und Druckverlauf während des Füllens eines Sackes mit einem hohen Luftanteil;
- Fig. 5
- ein Diagramm mit dem Gewichts- und Druckverlauf während des Füllen eines Sackes mit gezielter Belüftung; und
- Fig. 6
- eine schematische Darstellung des Vorratsbehälters und des Fülltopfes.
- Fig. 1
- a schematic representation of a filling plant,
- Fig. 2
- a sectional view of a part of the system according to
Fig. 1 ; - Fig. 3
- a diagram of the weight and pressure curve during the filling of a bag, with no additional air is supplied;
- Fig. 4
- a diagram with the weight and pressure curve during the filling of a bag with a high proportion of air;
- Fig. 5
- a diagram with the weight and pressure curve during the filling of a bag with targeted ventilation; and
- Fig. 6
- a schematic representation of the reservoir and the Fülltopfes.
Die in
Die Packmaschine 2 enthält sechs als Füllrohre 3 ausgeführte Fülleinrichtungen, auf welche, wie in
Wie durch den Pfeil b in
Die Anlage 1 ist mit einem Austrageband 6 zum Abtransport der gefüllten und abgeworfenen Ventilsäcke 4 versehen. Es kann der Abwurf direkt auf das Austrageband 6 erfolgen oder aber ein weiteres Greifer-Organ vorgesehen sein, welches die Ventilsäcke 4 auf das Austrageband 6 stellt. Ein Verschweißen der Ventilsäcke 4 kann vor der Ablage auf dem Austrageband 6 oder danach in einer zusätzlichen Station erfolgen.The system 1 is provided with a
In der Darstellung nach
Erfindungsgemäß wird ein für den Druck im Ventilsack charakteristischer Wert über einen Drucksensor 10 aufgenommen. Der Drucksensor 10 ist dabei hinsichtlich seiner Messcharakteristik so ausgewählt und an einer solchen Position angebracht, dass der gemessene Druck dem Druck im Inneren des Ventilsackes 4 im Wesentlichen entspricht oder anhand des Messsignals abgeleitet werden kann. Das Signal des Drucksensors 10 wird ausgewertet und zur Steuerung des Füllvorgangs eingesetzt. Insbesondere wird die Luftzufuhr in Abhängigkeit von dem erfassten Druck gesteuert, um einen optimalen Füllvorgang zu erhalten, so dass die Sackfolgezahl möglichst groß ist.According to the invention, a characteristic value for the pressure in the valve bag is received via a
In einer bevorzugten und in
In besonders bevorzugten Ausgestaltungen ist ein Drucksensor 10 vorgesehen, der über eine Druckaufnahmeöffnung 9 und einen Messkanal oder eine Messleitung 13 den in dem Inneren des Sackes herrschenden Druck aufnimmt. Die Druckaufnahmeöffnung 9 kann z.B. in einem vorderen Bereich des Füllrohres 3 in der Nähe der Austrittsöffnung für das Füllmaterial vorgesehen sein. Vorzugsweise ist die Öffnung in einem unteren Bereich des Füllrohres beabstandet von der Austrittsöffnung vorgesehen, um ein Eintreten von Füllmaterial zu verhindern. Nach jedem Füllvorgang kann die Messleitung 13 durch einen kurzen Luftstoß freigeblasen werden.In particularly preferred embodiments, a
Die Messleitung 13 kann einen ersten als Kanal ausgeführten Abschnitt 13a in dem Füllrohr aufweisen und einen zweiten Abschnitt 13b, der als flexible oder starre Leitung ausgeführt ist. Auch bei einer einige Meter langen Leitung ist eine schnelle Reaktionszeit möglich, da sich Druckstörungen mit Schallgeschwindigkeit ausbreiten, so dass eine ausreichende Steuerungsgeschwindigkeit erzielbar ist.The measuring
Die gemessenen Druckwerte werden in einer dem Drucksensor 10 zugeordneten digitalen Auswertungseinheit 11 zwischengespeichert und einer zentralen Steuerungseinheit 14 übergeben. Anhand der gemessenen Daten wird der Füllvorgang gesteuert.The measured pressure values are buffered in a
Zur Feststellung des Füllstands in einem zu befüllenden Ventilsack 4 ist eine in
Das erfindungsgemäße Verfahren bzw. die erfindungsgemäße Anlage erfolgt bzw. arbeitet wie folgt. Sofern ein Ventilsack 4 von einem Aufsteckautomaten oder per Hand auf ein Füllrohr 3 aufgeschoben worden ist, wird der Füllvorgang begonnen, der durch die elektronische Steuerungseinheit 14 initiiert wird. Zu einem geeigneten Zeitpunkt wird die Blähmanschette 7 festgelegt. Das erfolgt insbesondere, wenn der Druck im Sackinneren ein vorbestimmtes Maß übersteigt. Die genaue Höhe hängt von der Art des abzufüllenden Produktes ab.The process according to the invention or the plant according to the invention takes place or works as follows. If a
Das dem Förderorgan 16 aus einem Silo oder dgl. zugeführte Material 18 wird durch das Füllrohr 3 in den Ventilsack 4 eingebracht. Dabei wird die Masse des eingefüllten Materials 18 von der Wägeeinrichtung 12 entweder in vorgegebenen Abständen oder im Wesentlichen kontinuierlich bestimmt und es werden die Messwerte an die Verarbeitungseinheit 15 und an die Steuerungseinheit 14 weitergeleitet, die gleichzeitig die Signale des Drucksensors 10 auswertet und bei der Steuerung berücksichtigt.The conveying
Von der zentralen Steuerungseinheit 14 können bei einem Befüllvorgang unterschiedliche Druck-Beaufschlagungsprofile abgefahren werden. So kann der Druck in einer kurzen Anfangsphase des Befüllvorgangs hoch gewählt sein, um eine Entfaltung von Falten im Bodenbereich des Ventilsackes 4 zu erleichtern. Bei den meisten Füllmaterialien wird zum Ende des i.A. bis zu einigen Zehn-Sekunden dauernden Befüllvorgangs hin der Druck zum Erreichen einer entsprechenden Verdichtungswirkung erhöht. So werden etwa die letzten 5 bis 10% des Füllmaterials 18 unter relativ hohem Druck eingefüllt.From the
Die jeweils optimale Druckkurve wird in der Regel empirisch ermittelt und ist von Produkt zu Produkt unterschiedlich. Auch die Umgebungsbedingungen (Druck, Temperatur, Luftfeuchte) können Einfluss haben.The optimum pressure curve is usually determined empirically and varies from product to product. The ambient conditions (pressure, temperature, humidity) can also influence.
Erfindungsgemäß wird während des gesamten Einfüllvorgangs und auch danach von dem Drucksensor 10 der im Ventilsack 4 herrschende Druck erfasst und an die den gesamten Betriebsablauf steuernden Einheiten weitergegeben. Vorzugsweise erfolgt die Druckmessung kontinuierlich.According to the invention, the pressure prevailing in the
Das Ende des Befüllvorgangs wird in einer Ausführung der Erfindung von der zentralen Steuerungseinheit 14 eingeleitet, wenn ihr von der Verarbeitungseinheit 15 an Hand der von der Wägeeinrichtung 12 ermittelten Massewerte ein Erreichen einer voreinstellbaren Zielmasse mitgeteilt wird.The end of the filling process is initiated in one embodiment of the invention by the
Nach dem Ende des Einfüllvorgangs wird der Druckverlauf weiter vermessen und der unmittelbar oder eventuell auch zeitverzögert einsetzende Abfall des Druckes p vom Drucksensor 10 erfasst. Die in dem Ventilsack 4 vorhandene Luft kann durch an der Außenfläche des Ventilsackes 4 angebrachte, lediglich für die Luft durchlässige Öffnungen 19 entweichen, so dass der aufgebaute Innendruck abgebaut wird.After the end of the filling process, the pressure curve is further measured and the immediately or possibly delayed delayed onset of the pressure p detected by the
Erfindungsgemäß ist in der digitalen Auswertungseinheit 11 und/oder der zentralen Steuerungseinheit 14 ein insbesondere einstellbarer Druckschwellwert po hinterlegt, nach dessen Unterschreiten bei einer Abnahme des Ventilsackes 4 die Gefahr eines unbeabsichtigten wesentlichen Materialaustritts beseitigt ist.According to the invention, a particular one is in the
Sofern der momentane Druck den Druckschwellwert po unterschreitet, steuert die zentrale Steuerungseinheit 14 die Sackabnahmeeinheit an, um den gefüllten Ventilsack 4 von dem Füllrohr 3 abzunehmen oder abzuwerfen. Bei gängigen in derartigen Anlagen abzufüllenden Materialien wie Zement oder dgl. liegt der Druckschwellwert po im Bereich eines Überdrucks im Inneren des Ventilsacks 4 bei z.B. 25 mbar. Je nach Anwendungsfall, kann der Druckschwellwert auch größer sein und z.B. 50 mbar betragen oder auch kleiner sein. Es versteht sich, dass der Druckschwellwert po neben der Art des einzufüllenden Materials und dessen Struktur oder Körnigkeit auch von der Art, der Größe und dem Material des Behältnisses abhängt.If the instantaneous pressure falls below the pressure threshold value p o , the
Die Zeit für ein Unterschreiten des Druckschwellwertes po kann der Füllzeit entsprechen und diese auch übersteigen. Die Zeitdauer kann einige Zehn-Sekunden und noch mehr betragen.The time for falling below the pressure threshold p o may correspond to the filling time and exceed this. The time can be tens of seconds or more.
Alternativ oder zusätzlich kann die Auswertungseinheit 11 auch einen Druckgradienten Δp/Δt der Druckabnahme ermitteln und diesen bei dessen Konstanz oder, sofern dessen Änderung unterhalb einer vorgebbaren Größe liegt, an die zentrale Steuerungseinheit 14 übergeben. Die zentrale Steuerungseinheit 14 leitet dann alle Schritte zur Abnahme des Ventilsackes 4 von dem Füllrohr ein.Alternatively or additionally, the
Bevorzugt beinhaltet der erfindungsgemäße Betrieb eine Abschaltsicherung, die von der zentralen Steuerungseinheit 14 bei Vorliegen eines abrupten vorgegebenen Druckabfalls Δp < 0 oder einer Stagnation des Druckes für eine vorgegebene Zeitspanne Δt aktiviert wird. Dadurch können die Folgen eines Sackbruches oder eines nicht korrekten Anschlusses des Ventilsacks 4 an dem Füllrohr 3 verringert oder weitestgehend vermieden werden.The operation according to the invention preferably includes a switch-off protection which is provided by the
Die von dem Drucksensor 10 aufgenommenen Druck-Werte können erfindungsgemäß auch dazu benutzt werden, um den Druck während des gesamten Befüllvorgangs unterhalb eines Maximaldruckes pmax zu halten. Dies wird über eine Regelung des Förderorgans 16 und/oder der Luftzufuhr 17 in Abhängigkeit vom gemessenen Druck p erreicht. Dazu kann erfindungsgemäß der Förderstrom an Füllmaterial reduziert oder komplett unterbrochen werden.According to the invention, the pressure values recorded by the
Ferner ermöglicht die Erfindung eine Steuerung des gesamten Befüllvorgangs in Abhängigkeit der ermittelten Druckwerte p in dem zu befüllenden Ventilsack 4. Dabei kann die zentrale Steuerungseinheit 14 die Prozesssteuerung an Hand einer Kombination der über die von der Wägeeinrichtung 12 aufgenommenen Massewerte und der von dem Drucksensor 10 für den Druck gemessenen Druckwerte p durchführen.Furthermore, the invention makes it possible to control the entire filling operation as a function of the determined pressure values p in the
In
Die Kurve 20 stellt den Gewichtsverlauf beim Befüllen eines Sackes mit einem Schüttgut dar, während die Kurve 21 den Druckverlauf über der Zeit zeigt. Die Kurve 22 zeigt den Betriebszustand des Förderorgans über der Zeit. Der Ablauf beim Füllen ist wie folgt:The
Das Förderorgan wird für eine Zeitdauer 28a auf die Betriebsart Grobstrom eingestellt. Während dieser Zeitdauer ist die Gewichtszunahme groß und hier im Ausführungsbeispiel nahezu linear mit der Zeit. Zum Zeitpunkt 24 wird das vorbestimmte Grenzgewicht erreicht, welches hier etwa 22 kg beträgt, und es wird während der Zeitdauer 28b auf Feinstrom umgeschaltet bis das Endgewicht von hier z.B. etwa 25 kg erreicht wird.The delivery member is set to coarse flow mode for a period of
Während der Feinstromfüllphase ist der Massenstrom geringer. Gleichzeitig nimmt aber dennoch der im Sack vorhandene Druck zu, der aber in diesem Beispiel über die gesamte Füllzeit gering bleibt.During the Feinstromfüllphase the mass flow is lower. At the same time, however, the pressure present in the bag increases, but remains low in this example over the entire filling time.
Bei Erreichen des Feinstromabschaltpunktes 25 wird der Feinstrom gestoppt. Während des kurzen Zeitabschnittes des Feinstromnachlaufes wird noch etwas Material gefördert. Der Druckverlauf kann hier sein (geringes) Maximum erreichen. Der Druck im Sackinneren baut sich in Abhängigkeit von der Sackentlüftung, die auch von den verwendeten Säcken abhänqt nach dem Abschalten schnell ab.Upon reaching the
Bei diesem Beispiel kann der Sack direkt abgenommen werden, da hier ein Abnahmedruck 27 von 50 mbar vorgegeben wurde. Je nach abzufüllendem Material hat der Abnahmedruck 27 unterschiedliche Werte. Bei leichteren und feineren Materialien ist der Grenzwert kleiner.In this example, the bag can be removed directly, since a take-
Hier kann der Sack abgenommen werden ohne dass zu viel Material wieder austritt. Durch die individuelle Messung kann der Prozess optimal auf das eingesetzte Schüttgut und die verwendeten Säcke angepasst werden.Here the bag can be removed without leaving too much material. Through individual measurement, the process can be optimally adapted to the bulk material used and the bags used.
Bei dem in
Ein weiteres Beispiel einer Gewichtskurve 20 und einer Druckkurve 21 bei der Abfüllung von schüttförmigen Gütern 18 ist in
Durch einen gesteuerten Einsatz von Zusatzluft kann das Abfüllergebnis noch verbessert werden, wie die in
Die Steuerung der Zuluft führt dazu, dass zwar eine längere Grobstromphase 28a mit etwa 4,2 Sekunden vorliegt, wobei aber die Verarbeitungszeit insgesamt nur etwa 7,2 Sekunden beträgt, bis sich der Überdruck im Sack auf den Abnahmedruck von 50 Millibar abgebaut hat. Die Füllzeit beträgt hier 6,8 Sekunden und der max. Überdruck 60 Millibar. Die Turbinendrehzahl beträgt ebenfalls 650 Umdrehungen pro Sekunde.The control of the supply air leads to the fact that although a longer
Im Unterschied zur Abfüllung mit viel Luft (
Wie der Vergleich der in den
Der maximale Überdruck beträgt bei der Messung für
Wie man den Darstellungen der
In
Claims (19)
- A method for filling a container (4), in particular a bag, wherein the container (4) is placed with an opening (5) on a filling pipe of a filling device (3) and filled with loose materials, wherein the loose materials (18) are fed to the filling device (3) from a storage container and by conveyed into the container (4) means of a conveying element (16), while a representative level of the pressure p prevailing in the container (4) is measured, characterized in that during filling of the container with the material (18) at least one filling parameter such as the air feed is controlled in dependence on the prevailing pressure p to accelerate processing the container (4).
- The method according to claim 1, characterized in that the current weight of the container (4) to be filled is taken into account for controlling.
- The method according to claim 1 or 2, characterized in that the air admixed to the loose materials (18) in the filling pipe for standardizing their fluidity is controlled in dependence on the measured pressure p.
- The method according to claim 1, 2 or 3, characterized in that it comprises closing the container (4) and/or removing the container from the filling device (3).
- The method according to any of claims 1 to 4, characterized in that the speed of the filling turbine or conveyor screw serving as the filling element is controlled in dependence on the measured pressure p.
- The method according to any of claims 1 to 5, characterized in that the conveying air of an air filling system serving as the filling element is controlled in dependence on the measured pressure p.
- The method according to any of claims 1 to 6, characterized in that the filling element employed is a pump whose pump stroke and/or pumping frequency is controlled.
- The method according to any of claims 1 to 7, characterized in that the metering position of a metering device is controlled in dependence on the measured pressure p.
- The method according to any of the preceding claims wherein conveying of the conveying element (16) is decelerated or stopped as the pressure p in the container exceeds a predetermined level.
- The method according to any of the preceding claims wherein a filling collar between the filling pipe (3) and the container (4) is inflated as the pressure p in the container (4) exceeds a predetermined parameter.
- The method according to any of the preceding claims wherein the pressure in the filling collar is reduced only when the pressure p in the container (4) falls below a predetermined threshold level.
- The method according to any of the preceding claims wherein the container (4) is removed as the intended end weight is obtained and the pressure p in the container (4) falls below a predetermined threshold level.
- The method according to any of the preceding claims wherein filling is stopped if an abrupt pressure loss occurs.
- A system for filling containers (4), in particular valve bags, comprising:- a filling pipe (3) for receiving the container (4), wherein the container (4) can be fixed on the filling pipe (3) by means of an opening (5) and can be filled with loose materials (18) through the filling pipe (3),- a conveying element (16) for transporting materials (18) through the filling pipe (3) into the container, and a measuring device (10) with a pressure sensor for measuring a representative level of the internal pressure p prevailing in the container (4),characterized by a control device by means of which the internal pressure p prevailing in the container (4) can be captured during the filling operation, wherein during filling the materials (18) into the container at least one filling parameter of the filling operation, in particular the air feed, is controlled in dependence on the internal pressure p.
- The system according to claim 14, wherein the air feed toward the filling element (16) can be controlled in dependence on the internal pressure p.
- The system according to claim 14 or 15, wherein a controllable apparatus (17) is provided on the filling pipe for admixing air into the materials for standardizing their fluidity.
- The system according to any of claims 14 to 16, characterized in that the measuring device (10) comprises a pressure capturing aperture (9) which is connected with a measuring line (13), and that the pressure sensor is positioned remote from the filling pipe.
- The system according to any of claims 14 to 17, characterized in that the pressure sensor (10) is mounted on the filling pipe (3).
- The system according to any of claims 14 to 18, characterized by a take-off device for taking the filled container (4) off of the filling pipe (3) and for moving the container (4) into a further-processing position.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006024870A DE102006024870A1 (en) | 2006-05-24 | 2006-05-24 | Method and installation for filling containers, in particular for filling sacks |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1860027A2 EP1860027A2 (en) | 2007-11-28 |
EP1860027A3 EP1860027A3 (en) | 2007-12-05 |
EP1860027B1 true EP1860027B1 (en) | 2008-10-29 |
Family
ID=38523503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07010230A Active EP1860027B1 (en) | 2006-05-24 | 2007-05-23 | Method and facility for filling containers, in particular for filling sacks |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1860027B1 (en) |
AT (1) | ATE412577T1 (en) |
DE (2) | DE102006024870A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013009284A1 (en) | 2013-06-04 | 2014-12-04 | Haver & Boecker Ohg | Packing machine and process |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008025268A1 (en) * | 2008-05-27 | 2009-12-03 | Haver & Boecker Ohg | Method and filling system for filling sacks |
DE102008051023A1 (en) * | 2008-06-06 | 2009-12-17 | Haver & Boecker Ohg | packing machine |
CN106742121A (en) * | 2016-12-23 | 2017-05-31 | 恩施环城节能科技有限责任公司 | A kind of efficient Pneumatic valve mouth packing machine |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3073401A (en) * | 1958-05-22 | 1963-01-15 | Black Products Co | Method and apparatus for filling bags |
DE1209936B (en) * | 1959-05-01 | 1966-01-27 | St Regis Paper Co | Method and device for filling valve bags with dusty or grainy material |
US3072208A (en) * | 1960-12-05 | 1963-01-08 | St Regis Paper Co | Valve bag packer apparatus |
DE2717948C2 (en) * | 1977-04-22 | 1982-10-07 | Erwin Behn Verpackungsbedarf Gmbh, 4150 Krefeld | Valve bag filling device for airworthy filling material |
DE3540505C2 (en) * | 1985-11-15 | 1995-11-09 | Natronag Verpackung | Bag filling machine |
DE4100658C2 (en) * | 1991-01-11 | 1995-01-05 | Haver & Boecker | Method and machine for introducing flowable filling material into containers |
DE4239658C2 (en) * | 1992-11-26 | 1995-10-19 | Haver & Boecker | Method for filling valve sacks using a filling machine |
DE19726108A1 (en) * | 1997-06-19 | 1998-12-24 | Knaup Maschf Gmbh & Co | Sack filling machine for bulk solids e.g. grains or powder |
DE10258246A1 (en) * | 2002-12-13 | 2004-07-15 | Haver & Boecker | Procedure for filling of valve bags has facility whereby at least one parameter ruling flowability of filling material is recorded by sensing device, whereby with deviation from set value air portion in filling material is increased |
DE20305725U1 (en) * | 2003-04-09 | 2003-07-10 | Haver & Boecker | Rotating filling machine with closing device |
-
2006
- 2006-05-24 DE DE102006024870A patent/DE102006024870A1/en not_active Withdrawn
-
2007
- 2007-05-23 EP EP07010230A patent/EP1860027B1/en active Active
- 2007-05-23 AT AT07010230T patent/ATE412577T1/en not_active IP Right Cessation
- 2007-05-23 DE DE502007000200T patent/DE502007000200D1/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013009284A1 (en) | 2013-06-04 | 2014-12-04 | Haver & Boecker Ohg | Packing machine and process |
Also Published As
Publication number | Publication date |
---|---|
EP1860027A2 (en) | 2007-11-28 |
DE502007000200D1 (en) | 2008-12-11 |
ATE412577T1 (en) | 2008-11-15 |
DE102006024870A1 (en) | 2007-11-29 |
EP1860027A3 (en) | 2007-12-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2288544B1 (en) | Method and filling system for filling bags | |
EP2785594B1 (en) | Packaging machine and method for filling pouches | |
EP3010812B1 (en) | Packing machine and method | |
EP2707286B1 (en) | Packing machine and method for filling open sacks | |
EP2098452B1 (en) | Method and device for filling a container | |
WO2012042034A1 (en) | Device and method for metering a bulk material | |
DE19746220A1 (en) | Pneumatic conveying device for powder materials | |
EP1860027B1 (en) | Method and facility for filling containers, in particular for filling sacks | |
AT515680B1 (en) | Apparatus, plant and method for producing a mass mixed with granules | |
EP2896571B1 (en) | Metering device and method for metering | |
EP2097319B1 (en) | Method and device for filling a container | |
EP3856645A1 (en) | Filling unit and method for filling containers | |
DE102010003814B4 (en) | Method for automatic dosing and dosing device | |
EP3003864B1 (en) | Packing machine and method | |
EP2105207B1 (en) | Receptable for powder-form substances, conveyer system for powder-form substances and method for operating the same | |
EP2228305B1 (en) | Method for filling containers with dry ice particles | |
CH688824A5 (en) | Process and apparatus for pneumatically conveying powdery or granular materials. | |
CH716703B1 (en) | Method for operating a fluidic bulk material conveying system and bulk material conveying system. | |
DE102010000333A1 (en) | Dosing closure for use in vacuum conveyor for packaging e.g. granulates, has circular closure disks that are rotatable, provided with openings for passage of bulk material and adjustably arranged to each other at distance |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK YU |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK YU |
|
17P | Request for examination filed |
Effective date: 20071217 |
|
17Q | First examination report despatched |
Effective date: 20080121 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REF | Corresponds to: |
Ref document number: 502007000200 Country of ref document: DE Date of ref document: 20081211 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: ALDO ROEMPLER PATENTANWALT |
|
LTIE | Lt: invalidation of european patent or patent extension |
Effective date: 20081029 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090129 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081029 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090209 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090330 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081029 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081029 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081029 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081029 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090228 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081029 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081029 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081029 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081029 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090129 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081029 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081029 |
|
26N | No opposition filed |
Effective date: 20090730 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090531 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20100129 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090602 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090523 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100523 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090523 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090430 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20110525 Year of fee payment: 5 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081029 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081029 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20110523 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110523 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120531 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120531 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230515 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20230519 Year of fee payment: 17 Ref country code: IT Payment date: 20230531 Year of fee payment: 17 Ref country code: DE Payment date: 20230519 Year of fee payment: 17 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20230517 Year of fee payment: 17 |