EP0226057A1 - Bag-filling machine - Google Patents

Bag-filling machine Download PDF

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Publication number
EP0226057A1
EP0226057A1 EP86115871A EP86115871A EP0226057A1 EP 0226057 A1 EP0226057 A1 EP 0226057A1 EP 86115871 A EP86115871 A EP 86115871A EP 86115871 A EP86115871 A EP 86115871A EP 0226057 A1 EP0226057 A1 EP 0226057A1
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EP
European Patent Office
Prior art keywords
filling tube
filling
segments
machine according
filling machine
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Granted
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EP86115871A
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German (de)
French (fr)
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EP0226057B1 (en
Inventor
Joachim Dr.-Ing. Spiess
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Natronag Gesellschaft fuer Verpackungssysteme mbH
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Natronag Gesellschaft fuer Verpackungssysteme mbH
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Priority to AT86115871T priority Critical patent/ATE46672T1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/04—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 bag-filling machine in which made the medium with compressed air flowable and is supported by an F üllrschreibe, having a storage cylinder having at its bottom with a ventilation openings, formed from at least three segments, inclined towards the stuffing tube sieve-like bottom is completed and in the peripheral wall above the bottom, the filling tube is attached.
  • Such bag filling machines which work with the pneumatic conveying principle, have been known for many years and are used in practice for filling bags with dusty goods.
  • the sieve-shaped base serves to loosen the filling material through the air flow, so that it becomes fluid and can get into the filling tube.
  • a sack filling machine of the type mentioned at the outset is known, the bottom of which is inclined towards the filling tube and is divided into six segments, two of which are arranged one behind the other in the direction of the inclination.
  • a common compressed air line is applied to the segments.
  • the six segments each have an air inlet opening, so they only serve to distribute the compressed air over the surface of the floor. The problem of emptying residual quantities is not addressed in this publication.
  • the invention has for its object to provide a bag filling machine of the type mentioned, which ensures a significantly improved flow of the pneumatically conveyed filling material and at least leads to a reduction in the remaining filling quantity contained in the filling tube and in the storage cylinder.
  • This object is achieved in that at least three segments are arranged one behind the other in the direction of the inclination of the floor and that under the segments sealed from each other, a separate compressed air supply chamber is arranged, which are each provided with a controllable compressed air supply.
  • the setting of the pressure for the different segments - including the relative setting of the pressure of the segments among one another - depends on the respective filling material.
  • the optimum setting can easily be determined experimentally by a person skilled in the art.
  • At least four segments are arranged one behind the other on the line between the filling tube and the wall of the storage cylinder opposite the filling tube.
  • An optimal result in practice is achieved when the floor is inclined and the angle of inclination is between 10 ° and 45 °, preferably approximately 20 °.
  • the flow guidance is particularly favorable if the segment which lies directly in front of the filling tube has approximately the width of the filling tube and the width of the segments arranged one behind the other increases conically with increasing distance from the filling tube.
  • the side segments should be inclined obliquely to the center segments arranged one behind the other, so that a channel that tapers conically to the filling tube is formed, which is formed from the center segments arranged one behind the other and the side segments, whereby the side segments can also be divided into a plurality of side segments arranged one behind the other or next to one another .
  • the underside of the filling tube is arranged in alignment with the top of the bottom. This creates a step at the transition between the floor and the filling tube avoided, as was the case with conventional filling machines.
  • the filling pipe is connected to a through hole in the wall of the storage cylinder, the opening cross section of which is essentially identical to the cross section of the filling pipe. It has surprisingly been found that any nozzle-like design of the transition from the supply cylinder to the filling tube leads to a deteriorated flow.
  • the filling tube has a cross section with a width that is substantially greater than its height.
  • the ratio of width to height is preferably about 2: 1.
  • the filling pipe has its greatest width at its bottom, for example it is semicircular or preferably rectangular.
  • the emptying of the filling tube is further promoted in that the filling tube is arranged inclined downwards.
  • the inclination of the filling tube can preferably correspond approximately to the inclination of the bottom on the line between the filling tube and the wall of the storage cylinder opposite the filling tube.
  • the filling machine shown in Figure 1 has a support frame 1 to which a bag chair 2 is attached as part of a weighing device. With the movable with the sack chair; Arrangement is connected to a filling tube 3, which opens into a storage cylinder 4 held on the frame 1.
  • the storage cylinder is completed at its lower end with a sloping floor 5.
  • On the underside of the base 5 there are a large number of compressed air lines 6 in FIG recognizable with which compressed air is directed to different locations of the floor 5 divided into several areas.
  • Locking device 7, which separates the storage cylinder 4 from a feed line 8 to a storage silo (not shown) for the filling material.
  • the filling tube 3 is surrounded at its front end, onto which a valve of a valve bag is inserted, with an inflation hose 9, which ensures a seal between the filling tube 3 and the valve of the valve bag, so that the dusty filling material is not blown out.
  • the bag placed on the filling tube 3 is fixed in a known manner on the filling tube 3 by means of a pneumatically controlled stamp 10 which presses on the filling tube from above.
  • the air pressure supplied via the compressed air lines 6 can be adjusted with the aid of setting controllers 7, depending on the application, a separate setting controller 7 for each compressed air line 6 or also a setting controller 7 for a subset of compressed air lines 6.
  • Figure 2 shows schematically that the filling tube 3 has a rectangular cross section in the illustrated embodiment.
  • the first segment 11 which is adjacent to the filling tube 3
  • All segments 11 widen conically to the wall of the storage cylinder 4 opposite the filling tube 3, so that they form a conically tapering path towards the filling tube 3.
  • the segments 11 adjoin one another and are inclined downwards towards the filling tube 3 with respect to the horizontal.
  • the first segment adjacent to the filling tube 3 has a lower inclination than the other segments 11, which are all inclined equally and continuously connect to each other.
  • the inclination of the segment 11 adjacent to the filling tube 3 is adapted to the inclination of the filling tube 3, as shown in FIG. 3b.
  • the segments 11 arranged one behind the other are supplemented laterally by side segments 12 to form the complete floor 5.
  • the side segments 12 adjoining on both sides of the segments 11 are inclined laterally to the segments 11 arranged one behind the other.
  • Four side segments are provided on each side of the segments 11, the dividing lines 13 of which are approximately perpendicular to the direction pointing towards the filling tube 3 from the side segments 12.
  • the segments 11 arranged one behind the other, together with the laterally rising side segments 12, form an approximately U-shaped channel in cross section, the upstanding legs of which diverge obliquely upwards.
  • Each of the segments 11, 12 has on its underside a pressure chamber 14 (see FIGS. 1 and 3b) which are sealed off from one another and each have their own compressed air supply line 6. This ensures that the air flowing through the sieve-like segments 11, 12 of the base 5 can be regulated for each segment 11, 12 relative to other segments 11, 12.
  • the compressed air supply line 6 is expediently provided with a separate setting regulator 7 for each segment 11, 12.
  • the suitable setting of the setting regulator 7 for each segment 11, 12 allows an adaptation to the respective filling material.
  • various setting combinations can lead to optimal fluidization and thus to an optimal flow of the filling material through the storage cylinder 4 and the filling tube 3.
  • the storage cylinder 4 has a wall 15, in which there is a through opening 16 which is flush with the cross section of the filling tube 3.
  • the bottom of the filling tube 3 is flush with the top of the relevant bottom segment 11, so that on the underside of the filling tube 3 there is a continuous transition between the bottom 5 and the underside of the filling tube 3. Otherwise, the passage opening 16 leads to sharp-edged transitions with respect to the wall 15 of the storage cylinder 4. A nozzle-like expansion to create a gradual transition has therefore been avoided.
  • Figures 4 and 5 also show an air discharge line 17 on the underside of the filling tube 3 below the rectangular cross section and a compressed air supply line 18 on the top of the filling tube, which opens into a chamber 19 surrounded by the inflation hose 9 and therefore causes the inflation hose 9 to inflate.
  • a compressed air supply line 23 is also arranged, which ends below a bottom part designed as a sieve 24 with two ventilation segments and thus produces a fluidized bed on the bottom for complete residual emptying.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Storage Of Harvested Produce (AREA)

Abstract

A bag-filling machine, in which the material to be filled is conveyed by compressed air through a filling tube, has a storage cylinder which is closed at its underside by a grid-like floor having ventilation apertures. The filling tube is fitted above the floor in the peripheral wall of the storage cylinder. An improvement in the flow of the material to be filled and a more complete emptying on termination of the filling procedure are achieved if the floor is formed from at least three segments. Below the segments, sealed relative to one another, respective specifically associated compressed air supply chambers are disposed which are each provided with a regulatable compressed air supply.

Description

Die Erfindung betrifft eine Sackfüllmaschine, in der das Füllgut mit Druckluft fließfähig gemacht und durch eine Füllröhre gefördert wird, mit einem Vorratszylinder, der an seiner Unterseite mit einem Belüftungsöffnungen aufweisenden, aus mindestens drei Segmenten gebildeten, zur Füllröhre hin geneigten siebförmigen Boden abgeschlossen ist und in dessen Umfangswand oberhalb des Bodens die Füllröhre angesetzt ist.The invention relates to a bag-filling machine in which made the medium with compressed air flowable and is supported by an F üllröhre, having a storage cylinder having at its bottom with a ventilation openings, formed from at least three segments, inclined towards the stuffing tube sieve-like bottom is completed and in the peripheral wall above the bottom, the filling tube is attached.

Derartige Sackfüllmaschinen, die mit dem pneumatischen Förderprinzip arbeiten, sind seit langen Jahren bekannt und werden in der Praxis für die Befüllung von Säcken mit staubenden Gütern eingesetzt. Der siebförmige Boden dient dazu, das Füllgut durch die Luftströmung aufzulockern, damit es fließfähig wird und in die Füllröhre gelangen kann.Such bag filling machines, which work with the pneumatic conveying principle, have been known for many years and are used in practice for filling bags with dusty goods. The sieve-shaped base serves to loosen the filling material through the air flow, so that it becomes fluid and can get into the filling tube.

Es ist bekannt, den Boden zur Füllröhre nach unten geneigt hin auszubilden, um günstigere Strömungsverhältnisse am Übergang von dem Vorratszylinder zur Füllröhre zu gewährleisten. Ferner ist es bekannt, die Füllröhre, die mit einigem Abstand oberhalb des Bodens angeordnet ist, konisch zum Vorratszylinder hin zu erweitern, so daß ein düsenförmiger Übergang vom Vorratszylinder zur Füllröhre entsteht.It is known to design the bottom inclined downward toward the filling tube in order to ensure more favorable flow conditions at the transition from the supply cylinder to the filling tube. Furthermore, it is known to expand the filling tube, which is arranged at some distance above the floor, conically towards the storage cylinder, so that a nozzle-shaped transition from the storage cylinder to the filling tube is produced.

In der Praxis hat sich die pneumatische Förderung an sich bewährt. In Kauf genommene Nachteile bestehen darin, daß die Füllröhre am Ende des Füllvorganges eines Sackes, der durch eine Waage gesteuert wird, nicht vollständig geleert ist. Da die Füllröhre regelmäßig in die Wägung mit einbezogen wird, weil der zu füllende Sack an der Füllröhre hängt und deshalb regelmäßig nicht unabhängig von der Füllröhre gewogen werden kann, entsteht hieraus eine Ungenauigkeit beim Wägevorgang, die dazu führt, daß vorsorglich regelmäßig etwas mehr Füllgut in den Sack eingefüllt werden muß als vorgesehen. Probleme ergeben sich ferner beim Wechsel des Füllgutes, da in den bekannten Füllmaschinen sehr große Restmengen verbleiben. Diese müssen entleert werden, wodurch die Umrüstzeit beträchtlich ist.Pneumatic conveying has proven itself in practice. In purchase taken disadvantages are that the F üllröhre at the end of the filling of a bag, which is controlled by a scale, is not completely emptied. Since the filling tube is regularly included in the weighing, because the sack to be filled hangs on the filling tube and therefore cannot be weighed regularly independently of the filling tube, this results in an inaccuracy in the weighing process, which leads to the precaution that a little more filling material is regularly added the sack must be filled as intended. Problems also arise when changing the filling material, since very large residual quantities remain in the known filling machines. These have to be emptied, which means that the changeover time is considerable.

Aus der AT-B-326 571 ist eine Sackfüllmaschine der eingangs erwähnten Art bekannt, deren zur Füllröhre hin geneigt stehender Boden in sechs Segmente aufgeteilt ist, von denen jeweils zwei in Richtung der Neigung hintereinander angeordnet sind. Die Segmente werden mit einer gemeinsamen Druckluftleitung beaufschlagt. Die sechs Segmente weisen jeweils eine Lufteinlaßöffnung auf, dienen also lediglich der Verteilung der Druckluft auf die Fläche des Bodens. Das Problem der Restmengenentleerung ist in dieser Druckschrift nicht angesprochen.From AT-B-326 571 a sack filling machine of the type mentioned at the outset is known, the bottom of which is inclined towards the filling tube and is divided into six segments, two of which are arranged one behind the other in the direction of the inclination. A common compressed air line is applied to the segments. The six segments each have an air inlet opening, so they only serve to distribute the compressed air over the surface of the floor. The problem of emptying residual quantities is not addressed in this publication.

Der Erfindung liegt die Aufgabe zugrunde, eine Sackfüllmaschine der eingangs erwähnten Art zu erstellen, die eine wesentlich verbesserte Strömung des pneumatisch geförderten Füllgutes gewährleistet und zumindest zu einer Verminderung der in der Füllröhre und in dem Vorratszylinder enthaltenden Restfüllmenge führt.The invention has for its object to provide a bag filling machine of the type mentioned, which ensures a significantly improved flow of the pneumatically conveyed filling material and at least leads to a reduction in the remaining filling quantity contained in the filling tube and in the storage cylinder.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß in Richtung der Neigung des Bodens wenigstens drei Segmente hintereinander angeordnet sind und daß unter den Segmenten gegeneinander abgedichtet jeweils eine eigene Druckluftzuführungskammer angeordnet ist, die mit je einer regelbaren Druckluftzuführung versehen sind.This object is achieved in that at least three segments are arranged one behind the other in the direction of the inclination of the floor and that under the segments sealed from each other, a separate compressed air supply chamber is arranged, which are each provided with a controllable compressed air supply.

Intensive Untersuchungen haben gezeigt, daß durch die Ausbildung des Bodens aus mehreren Segmenten die Fluidisierung und Füllgutströmung vom Vorratszylinder zu der Füllröhre wesentlich verbessert werden kann. Während bei dem bekannten einteiligen Boden ein beträchtlicher toter Winkel an der der Füllröhre gegenüberliegenden Wand des Vorratszylinders entsteht, läßt sich dieser tote Winkel, der von der Füllgutströmung praktisch nicht erfaßt wird, wesentlich verringern oder ganz vermeiden, wenn der Boden in mit eigenen Druckluftzuführungen versehenen Segmente aufgeteilt ist und der Druck für die einzelnen Segmente in geeigneter Weise eingestellt wird.Intensive investigations have shown that the fluidization and flow of the filling material from the supply cylinder to the filling tube can be significantly improved by forming the bottom from several segments. While in the known one-piece floor a considerable dead angle on the formed the F üllröhre opposite wall of the supply cylinder, this can be this dead angle, which is not detected practically by the Füllgutströmung, substantially reduce or completely avoided if the ground with its own compressed air supply leads provided segments and the pressure for the individual segments is adjusted in a suitable manner.

Die Einstellung des Druckes für die verschiedenen Segmente - auch die relative Einstellung des Druckes der Segmente untereinander - ist von dem jeweiligen Füllgut abhängig. Die optimale Einstellung läßt sich experimentell ohne weiteres vom Fachmann leicht ermitteln.The setting of the pressure for the different segments - including the relative setting of the pressure of the segments among one another - depends on the respective filling material. The optimum setting can easily be determined experimentally by a person skilled in the art.

In einer bevorzugten Ausführungsform sind auf der Linie zwischen der Füllröhre und der der Füllröhre gegenüberliegenden Wand des Vorratszylinders wenigstens vier Segmente hintereinander angeordnet. Ein in der Praxis optimales Ergebnis wird dann erreicht, wenn der Boden dabei geneigt ist und der Neigungswinkel zwischen 10° und 45°, vorzugsweise bei ca. 20° liegt. Die Strömungsführung wird besonders günstig, wenn das Segment, das unmittelbar vor der Füllröhre liegt, etwa die Breite der Füllröhre aufweist und sich die Breite der hintereinander angeordneten Segmente konisch mit zunehmendem Abstand von der Füllröhre vergrößert.In a preferred embodiment, at least four segments are arranged one behind the other on the line between the filling tube and the wall of the storage cylinder opposite the filling tube. An optimal result in practice is achieved when the floor is inclined and the angle of inclination is between 10 ° and 45 °, preferably approximately 20 °. The flow guidance is particularly favorable if the segment which lies directly in front of the filling tube has approximately the width of the filling tube and the width of the segments arranged one behind the other increases conically with increasing distance from the filling tube.

Eine weitere Verbesserung mit allerdings zusätzlichem Aufwand läßt sich erreichen, wenn die hintereinander angeordneten Segmente seitlich von Seitensegmenten fortgesetzt werden. Dabei sollten die Seitensegmente schräg zu den hintereinander angeordneten Mittelsegmenten geneigt sein, so daß eine konisch zum Füllrohr zulaufende Rinne entsteht, die aus den hintereinander angeordneten Mittelsegmenten und den Seitensegmenten gebildet wird, wobei auch die Seitensegmente noch in mehrere hintereinander oder nebeneinander angeordnete Seitensegmente unterteilt sein können.A further improvement, however with additional effort, can be achieved if the segments arranged one behind the other are continued laterally from side segments. The side segments should be inclined obliquely to the center segments arranged one behind the other, so that a channel that tapers conically to the filling tube is formed, which is formed from the center segments arranged one behind the other and the side segments, whereby the side segments can also be divided into a plurality of side segments arranged one behind the other or next to one another .

Bei der erfindungsgemäßen Füllmaschine stellt es sich als vorteilhaft heraus, wenn die Unterseite der Füllröhre mit der Oberseite des Bodens fluchtend angeordnet ist. Dadurch wird am übergang zwischen Boden und Füllröhre eine Stufe vermieden, wie sie bei den herkömmlichen Füllmaschinen vorhanden war.In the filling machine according to the invention, it turns out to be advantageous if the underside of the filling tube is arranged in alignment with the top of the bottom. This creates a step at the transition between the floor and the filling tube avoided, as was the case with conventional filling machines.

Ferner hat es sich überraschenderweise als günstig herausgestellt, wenn das Füllrohr an ein Durchgangsloch der Wandung des Vorratszylinders angeschlossen ist, dessen Uffnungsquerschnitt mit dem Querschnitt des Füllrohres im wesentlichen identisch ist. Es hat sich überraschenderweise gezeigt, daß jegliche düsenartige Ausbildung des übergangs vom Vorratszylinder zur Füllröhre zu einer verschlechterten Strömung führt.Furthermore, it has surprisingly turned out to be advantageous if the filling pipe is connected to a through hole in the wall of the storage cylinder, the opening cross section of which is essentially identical to the cross section of the filling pipe. It has surprisingly been found that any nozzle-like design of the transition from the supply cylinder to the filling tube leads to a deteriorated flow.

Eine besonders gute Entleerung der Füllröhre ergibt sich, wenn die Füllröhre einen Querschnitt mit einer wesentlich größeren Breite als Höhe aufweist. Dabei beträgt das Verhältnis von Breite zu Höhe vorzugsweise etwa 2 : 1. Vorzugsweise; hat das Füllrohr seine größte Breite an seinem Boden, ist also beispielsweise halbkreisförmig oder vorzugsweise rechteckig.A particularly good emptying of the filling tube is obtained if the filling tube has a cross section with a width that is substantially greater than its height. The ratio of width to height is preferably about 2: 1. Preferably; the filling pipe has its greatest width at its bottom, for example it is semicircular or preferably rectangular.

Die Entleerung der Füllröhre wird noch dadurch begünstigt, daß die Füllröhre nach unten geneigt angeordnet ist. Dabei kann die Neigung der Füllröhre vorzugsweise etwa der Nei- gung des Bodens auf der Linie zwischen der Füllröhre und der der Füllröhre gegenüberliegenden Wandung des Vorratszylinders entsprechen.The emptying of the filling tube is further promoted in that the filling tube is arranged inclined downwards. The inclination of the filling tube can preferably correspond approximately to the inclination of the bottom on the line between the filling tube and the wall of the storage cylinder opposite the filling tube.

Eine vollständige Entleerung der Füllröhre und des Vorratszylinders wird erreicht, wenn der Boden und die Füllröhre um 45° nach unten geneigt sind. Diese Neigung der Füllröhre verursacht jedoch erhebliche Probleme bei der Füllung von Ventilsäcken mit innen liegenden Ventilen. Ein in der Praxis sehr guter Kompromiß wird erzielt, wenn Boden und Füllröhre um etwa 20° gegenüber der Horizontalen geneigt sind. Die Erfindung soll im folgenden anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert werden. Es zeigen:

  • Figur 1 - eine seitliche Ansicht einer erfindungsgemäßen Füllmaschine
  • Figur 2 - eine perspektivische Darstellung eines schräg angeordneten Bodens des Vorratszylinders mit Mittelsegmenten und Seitensegmenten
  • Figur 3a - eine Draufsicht auf den Boden von oben
  • Figur 3b - eine seitliche Ansicht des Bodens
  • Figur 3c - eine Seitenansicht aus Richtung der Füllröhre des Bodens
  • Figur 4 - einen vertikalen Schnitt durch die Füllröhre und den Übergangsbereich zwischen Vorratszylinder und Füllröhre
  • Figur 5 - einen Schnitt entlang der Linie AB in Figur 4 i
  • Figur 6 - einen horizontalen Schnitt durch die in Figur 4 dargestellte Anordnung.
A complete emptying of the filling tube and the storage cylinder is achieved when the bottom and the filling tube are inclined downwards by 45 °. This inclination of the filling tube, however, causes considerable problems when filling valve bags with internal valves. A compromise that is very good in practice is achieved when the base and filling tube are inclined by approximately 20 ° with respect to the horizontal. The invention will be explained in more detail below with reference to exemplary embodiments shown in the drawing. Show it:
  • Figure 1 - a side view of a filling machine according to the invention
  • Figure 2 - a perspective view of an obliquely arranged bottom of the storage cylinder with middle segments and side segments
  • Figure 3a - a top view of the floor from above
  • Figure 3b - a side view of the floor
  • Figure 3c - a side view from the direction of the filling tube of the bottom
  • Figure 4 - a vertical section through the filling tube and the transition area between the storage cylinder and the filling tube
  • Figure 5 - a section along the line AB in Figure 4 i
  • Figure 6 - a horizontal section through the arrangement shown in Figure 4.

Die in Figur 1 dargestellte Füllmaschine weist ein Traggestell 1 auf, an dem ein Sackstuhl 2 als Teil einer Wägeeinrichtung befestigt ist. Mit der mit dem Sackstuhl bewegbaren; Anordnung ist eine Füllröhre 3 verbunden, die in einen am Gestell 1 gehaltenen Vorratszylinder 4 mündet. Der Vorratszylinder ist an seinem unteren Ende mit einem schräg gestell ten Boden 5 abgeschlossen. An der Unterseite des Bodens 5 sind in Figur 1 eine Vielzahl von Druckluftleitungen 6 erkennbar, mit denen Druckluft an verschiedene Stellen des in mehrere Bereiche unterteilten Bodens 5 geleitet wird. Am oberen Ende des Vorratszylinders 4 befindet sich eine Ab- ; sperreinrichtung 7, die den Vorratszylinder 4 von einer Zuführungsleitung 8 zu einem (nicht dargestellten) Vorratssilo für das Füllgut trennt.The filling machine shown in Figure 1 has a support frame 1 to which a bag chair 2 is attached as part of a weighing device. With the movable with the sack chair; Arrangement is connected to a filling tube 3, which opens into a storage cylinder 4 held on the frame 1. The storage cylinder is completed at its lower end with a sloping floor 5. On the underside of the base 5 there are a large number of compressed air lines 6 in FIG recognizable with which compressed air is directed to different locations of the floor 5 divided into several areas. At the upper end of the storage cylinder 4 there is an off; Locking device 7, which separates the storage cylinder 4 from a feed line 8 to a storage silo (not shown) for the filling material.

Das Füllrohr 3 ist an seinem vorderen Ende, auf den ein Ventil eines Ventilsacks gesteckt wird, mit einem Blähschlauch 9 umgeben, der für eine Abdichtung zwischen Füllrohr 3 und Ventil des Ventilsackes sorgt, damit ein Ausblasen des staubenden Füllgutes verhindert wird. Der auf die Füllröhre 3 aufgesteckte Sack wird in bekannter Weise mittels eines pneumatisch gesteuerten, von oben auf die Füllröhre drückenden Stempels 10 auf der Füllröhre 3 fixiert. Der über die Druckluftleitungen 6 zugeführte Luftdruck ist mit Hilfe von Einstellreglern 7 einstellbar, wobei je nach Anwendungsfall für jede Druckluftleitung 6 ein eigener Einstellregler 7 oder auch für eine Untergruppe von Druckluftleitungen 6 ein Einstellregler 7 vorgesehen sein können.The filling tube 3 is surrounded at its front end, onto which a valve of a valve bag is inserted, with an inflation hose 9, which ensures a seal between the filling tube 3 and the valve of the valve bag, so that the dusty filling material is not blown out. The bag placed on the filling tube 3 is fixed in a known manner on the filling tube 3 by means of a pneumatically controlled stamp 10 which presses on the filling tube from above. The air pressure supplied via the compressed air lines 6 can be adjusted with the aid of setting controllers 7, depending on the application, a separate setting controller 7 for each compressed air line 6 or also a setting controller 7 for a subset of compressed air lines 6.

Figur 2 zeigt schematisch, daß das Füllrohr 3 in dem dargestellten Ausführungsbeispiel einen rechteckigen Querschnitt aufweist. Vom Füllrohr zur gegenüberliegenden Wand des Vorratszylinders 4 sind sechs hintereinander angeordnete Segmente vorgesehen, von denen das erste Segment 11, das der Füllröhre 3 benachbart ist, an der Übergangsstelle zur Füll-' röhre 3 die Breite der Füllröhre 3 aufweist. Alle Segmente 11 verbreitern sich konisch zur der Füllröhre 3 gegenüberliegenden Wand des Vorratszylinders 4, so daß sie zur Füllröhre 3 hin eine konisch zulaufende Bahn bilden. Die Segmente 11 schließen aneinander an und sind zur Füllröhre 3 hin gegenüber der Horizontalen nach unten geneigt. In dem dargestellten Ausführungsbeispiel weist das der Füllröhre 3 benachbarte erste Segment eine geringere Neigung auf als die übrigen Segmente 11, die alle gleich geneigt sind und stetig aneinander anschließen. Die Neigung des der Füllröhre 3 benachbarten Segments 11 ist der Neigung der Füllröhre 3 angepaßt, wie Figur 3b verdeutlicht.Figure 2 shows schematically that the filling tube 3 has a rectangular cross section in the illustrated embodiment. From the filling tube to the opposite wall of the storage cylinder 4, six segments are provided one behind the other, of which the first segment 11, which is adjacent to the filling tube 3, has the width of the filling tube 3 at the transition point to the filling tube 3. All segments 11 widen conically to the wall of the storage cylinder 4 opposite the filling tube 3, so that they form a conically tapering path towards the filling tube 3. The segments 11 adjoin one another and are inclined downwards towards the filling tube 3 with respect to the horizontal. In the exemplary embodiment shown, the first segment adjacent to the filling tube 3 has a lower inclination than the other segments 11, which are all inclined equally and continuously connect to each other. The inclination of the segment 11 adjacent to the filling tube 3 is adapted to the inclination of the filling tube 3, as shown in FIG. 3b.

Die hintereinander angeordneten Segmente 11 werden seitlich durch Seitensegmente 12 zu dem kompletten Boden 5 ergänzt. Die auf beiden Seiten der Segmente 11 anschließenden Seitensegmente 12 sind seitlich zu den hintereinander angeordneten Segmenten 11 geneigt. Auf jeder Seite der Segmente 11 sind vier Seitensegmente vorgesehen, deren Trennlinien 13 etwa senkrecht zur auf die Füllröhre 3 zeigenden Richtung von den Seitensegmenten 12 aus stehen. Die hintereinander angeordneten Segmente 11 bilden zusammen mit den seitlich ansteigenden Seitensegmenten 12 eine im Querschnitt etwa U-förmige Rinne, deren hochstehende Schenkel schräg nach oben auseinanderlaufen.The segments 11 arranged one behind the other are supplemented laterally by side segments 12 to form the complete floor 5. The side segments 12 adjoining on both sides of the segments 11 are inclined laterally to the segments 11 arranged one behind the other. Four side segments are provided on each side of the segments 11, the dividing lines 13 of which are approximately perpendicular to the direction pointing towards the filling tube 3 from the side segments 12. The segments 11 arranged one behind the other, together with the laterally rising side segments 12, form an approximately U-shaped channel in cross section, the upstanding legs of which diverge obliquely upwards.

i Jedes der Segmente 11,12 weist an seiner Unterseite eine Druckkammer 14 (vgl. Figur 1 und 3b) auf, die gegeneinander abgedichtet sind und jeweils eine eigene Druckluftzuführungsleitung 6 aufweisen. Damit ist sichergestellt, daß die durch die siebartigen Segmente 11,12 des Bodens 5 strömende Luft für jedes Segment 11,12 relativ zu anderen Segmenten 11,12 regelbar ist. Zweckmäßigerweise wird die Druckluftzuleitung 6 für jedes Segment 11,12 mit einem eigenen Einstellregler 7 versehen sein.i Each of the segments 11, 12 has on its underside a pressure chamber 14 (see FIGS. 1 and 3b) which are sealed off from one another and each have their own compressed air supply line 6. This ensures that the air flowing through the sieve-like segments 11, 12 of the base 5 can be regulated for each segment 11, 12 relative to other segments 11, 12. The compressed air supply line 6 is expediently provided with a separate setting regulator 7 for each segment 11, 12.

Die geeignete Einstellung der Einstellregler 7 für jedes Segment 11,12 erlaubt eine Anpassung an das jeweilige Füllgut. Je nach Gewicht und Korngröße des Füllgutes können verschiedene Einstellkombinationen zu einer optimalen Fluidisierung und damit zu einem optimalen Fluß des Füllgutes durch den Vorratszylinder 4 und die Füllröhre 3 führen.The suitable setting of the setting regulator 7 for each segment 11, 12 allows an adaptation to the respective filling material. Depending on the weight and grain size of the filling material, various setting combinations can lead to optimal fluidization and thus to an optimal flow of the filling material through the storage cylinder 4 and the filling tube 3.

Die beiden Schnittdarstellungen in Figur 4 und Figur 6 verdeutlichen den Aufbau der rechteckigen Füllröhre 3 sowie den Übergang der Füllröhre 3 in den Vorratszylinder 4.The two sectional views in Figure 4 and Figure 6 illustrate the structure of the rectangular filling tube 3 and the Transition of the filling tube 3 into the storage cylinder 4.

Im Bereich des unteren Teils weist der Vorratszylinder 4 eine Wand 15 auf, in der sich eine Durchgangsöffnung 16 befindet, die mit dem Querschnitt des Füllrohres 3 fluchtet. Der Boden der Füllröhre 3 fluchtet mit der Oberseite des betreffenden Bodensegments 11, so daß auf der Unterseite der Füllröhre 3 ein stetiger übergang zwischen Boden 5 und der Unterseite der Füllröhre 3 besteht. Im übrigen führt die Durchgangsöffnung 16 gegenüber der Wand 15 des Vorratszylinders 4 zu scharfkantigen Über- gängen. Eine düsenartige Aufweitung zur Herstellung eines allmählichen Überganges ist daher vermieden worden.In the area of the lower part, the storage cylinder 4 has a wall 15, in which there is a through opening 16 which is flush with the cross section of the filling tube 3. The bottom of the filling tube 3 is flush with the top of the relevant bottom segment 11, so that on the underside of the filling tube 3 there is a continuous transition between the bottom 5 and the underside of the filling tube 3. Otherwise, the passage opening 16 leads to sharp-edged transitions with respect to the wall 15 of the storage cylinder 4. A nozzle-like expansion to create a gradual transition has therefore been avoided.

Figur 4 und 5 zeigen noch eine Luftabführungsleitung 17 an der Unterseite der Füllröhre 3 unterhalb des rechteckigen Querschnitts sowie eine Druckluftzuführungsleitung 18 an der Oberseite der Füllröhre, die in eine von dem Blähschlauch 9 umgebene Kammer 19 mündet und daher das Aufblähen des Blähschlauches 9 bewirkt.Figures 4 and 5 also show an air discharge line 17 on the underside of the filling tube 3 below the rectangular cross section and a compressed air supply line 18 on the top of the filling tube, which opens into a chamber 19 surrounded by the inflation hose 9 and therefore causes the inflation hose 9 to inflate.

Zur gewichtsmäßigen Entkopplung des vorderen Teils der Füllröhre 3 wird diese mit einem weichen Gummistück 20 zum Gestell 1 hin fortgesetzt. Innerhalb des Gestells schließt sich ein weiteres Gummistück 21 an, das mittels zweier Druckkolben 22 zusammendrückbar ist, um den wirksamen Querschnitt der Füllröhre für den Rest des Befüllvorganges (Feinstrom) um ca. drei Viertel zu verringern. Die Gummistücke 20,21 ! weisen den gleichen Innenquerschnitt auf wie das Füllrohr 3.To decouple the weight of the front part of the filling tube 3, this is continued with a soft rubber piece 20 towards the frame 1. Within the frame there is another rubber piece 21 which can be compressed by means of two pressure pistons 22 in order to reduce the effective cross section of the filling tube for the rest of the filling process (fine flow) by approximately three quarters. The rubber pieces 20.21! have the same internal cross-section as the filling tube 3.

Neben der Luftabführungsleitung 17 ist noch eine Druckluftzuführungsleitung 23 angeordnet, die unterhalb eines als Sieb 24 mit zwei Belüftungssegmenten ausgebildeten Boden- teils endet und somit am Boden ein Fließbett zur vollständigen Restentleerung erzeugt.In addition to the air discharge line 17, a compressed air supply line 23 is also arranged, which ends below a bottom part designed as a sieve 24 with two ventilation segments and thus produces a fluidized bed on the bottom for complete residual emptying.

Claims (14)

1. Sackfüllmaschine, in der das Füllgut mit Druckluft fließfähig gemacht und durch eine Füllröhre (3) gefördert wird, mit einem Vorratszylinder (4), der an seiner Unterseite mit einem Belüftungsöffnungen aufweisenden, aus mindestens drei Segmenten (11) gebildeten, zur Füllröhre (3) hin geneigten siebförmigen Boden (5) abgeschlossen ist und in dessen Umfangswand oberhalb des Bodens (5) die Füllröhre angesetzt ist, dadurch gekennzeichnet, daß in Richtung der Neigung des Bodens (5) wenigstens drei Segmente (11) hintereinander angeordnet sind und daß unter den Segmenten gegeneinander abgedichtet jeweils eine eigene Druckluftzuführungskammer (14) angeordnet ist, die mit je einer regelbaren Druckluftzuführung (6,7) versehen sind.1. Sack filling machine, in which the filling material is made flowable with compressed air and conveyed through a filling tube (3), with a storage cylinder (4), which has at least three segments (11) on the underside with a ventilation opening and has filling openings ( 3) inclined towards sieve-like bottom (5) is complete and üllröhre in the peripheral wall above the bottom (5) F is attached, characterized in that at least three segments (11) are arranged one behind the other in the direction of inclination of the bottom (5) and that a separate compressed air supply chamber (14), which is provided with an adjustable compressed air supply (6, 7), is arranged beneath the segments. 2. Sackfüllmaschine nach Anspruch 1, dadurch gekennzeichnet, daß in Richtung der Neigung des Bodens (5) wenigstens vier Segmente (11) hintereinander angeordnet sind.2. Sack filling machine according to claim 1, characterized in that in the direction of the inclination of the bottom (5) at least four segments (11) are arranged one behind the other. 3. Sackfüllmaschine nach Anspruch 2, dadurch gekennzeichnet, daß die Neigung des Bodens (5) zum Füllrohr (3) hin ca. 20° beträgt.3. Sack filling machine according to claim 2, characterized in that the inclination of the bottom (5) to the filling tube (3) is approximately 20 °. 4. Sackfüllmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Breite des Segments (11) am Übergang zur Füllröhre (3) etwa die Breite der Füllröhre (3) aufweist und daß sich die Breite der auf der Neigung hintereinander angeordneten Segmente (11) konisch mit zunehmendem Abstand von der Füllröhre (3) vergrößert.4. Sack filling machine according to one of claims 1 to 3, characterized in that the width of the segment (11) at the transition to the filling tube (3) has approximately the width of the filling tube (3) and that the width of the segments arranged one behind the other on the inclination (11) enlarged conically with increasing distance from the filling tube (3). 5. Sackfüllmaschine nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die hintereinander angeordneten Segmente (11) von Seitensegmenten (12) seitlich fortgesetzt sind.5. Sack filling machine according to one of claims 2 to 4, characterized in that the successively arranged segments (11) of side segments (12) are continued laterally. 6. Sackfüllmaschine nach Anspruch 5, dadurch gekennzeichnet, daß die Seitensegmente (12) schräg zu den hintereinander angeordneten Segmenten (11) geneigt sind.6. Sack filling machine according to claim 5, characterized in that the side segments (12) are inclined to the successively arranged segments (11). 7. Sackfüllmaschine nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Unterseite der Füllröhre (3) mit der Oberseite des Bodens (5) fluchtend angeordnet ist.7. Sack filling machine according to one of claims 1 to 6, characterized in that the underside of the filling tube (3) with the top of the bottom (5) is arranged in alignment. 8. Sackfüllmaschine nach Anspruch 7, dadurch gekennzeichnet, daß die Füllröhre (3) an ein Durchgangsloch (16) der Wandung (15) des Vorratszylinders angeschlossen ist, dessen Öffnungsquerschnitt mit dem Querschnitt der Füllröhre (3) im wesentlichen identisch ist.8. Sack filling machine according to claim 7, characterized in that the filling tube (3) is connected to a through hole (16) of the wall (15) of the supply cylinder, the opening cross section of which is essentially identical to the cross section of the filling tube (3). 9. Sackfüllmaschine nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Füllröhre (3) einen Querschnitt mit einer wesentlich größeren Breite als Höhe aufweist.9. Sack filling machine according to one of claims 1 to 8, characterized in that the filling tube (3) has a cross section with a substantially greater width than height. 10. Sackfüllmaschine nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Füllröhre (3) nach unten geneigt angeordnet ist.10. Sack filling machine according to one of claims 1 to 9, characterized in that the filling tube (3) is arranged inclined downwards. 11. Sackfüllmaschine nach Anspruch 10, dadurch gekennzeichnet, daß die Neigung der Füllröhre (3) etwa der Neigung des Bodens (5) am Übergang zur Füllröhre (3) entspricht.11. Sack filling machine according to claim 10, characterized in that the inclination of the filling tube (3) corresponds approximately to the inclination of the bottom (5) at the transition to the filling tube (3). 12. Sackfüllmaschine nach Anspruch 9, dadurch gekennzeichnet, daß die Füllröhre (3) ihre größte Breite am Boden aufweist.12. Sack filling machine according to claim 9, characterized in that the filling tube (3) has its greatest width at the bottom. 13. Sackfüllmaschine nach Anspruch 12, dadurch gekennzeichnet, daß die Füllröhre (3) einen rechteckigen Querschnitt aufweist.13. Sack filling machine according to claim 12, characterized in that the filling tube (3) has a rectangular cross section. 14. Sackfüllmaschine nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der Boden der Füllröhre (3) zumindest teilweise als Sieb (24) ausgebildet ist, unter dem eine Druckluftleitung (23) endet. ;14. Sack filling machine according to one of claims 1 to 13, characterized in that the bottom of the filling tube (3) is at least partially designed as a sieve (24), under which a compressed air line (23) ends. ;
EP86115871A 1985-11-15 1986-11-14 Bag-filling machine Expired EP0226057B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86115871T ATE46672T1 (en) 1985-11-15 1986-11-14 BAG FILLING MACHINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3540505 1985-11-15
DE3540505A DE3540505C2 (en) 1985-11-15 1985-11-15 Bag filling machine

Publications (2)

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EP0226057A1 true EP0226057A1 (en) 1987-06-24
EP0226057B1 EP0226057B1 (en) 1989-09-27

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US (1) US4735241A (en)
EP (1) EP0226057B1 (en)
AT (1) ATE46672T1 (en)
DE (2) DE3540505C2 (en)
ES (1) ES2011614B3 (en)
NO (1) NO864550L (en)

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US6881832B1 (en) 1997-09-05 2005-04-19 Uni Targeting Research As Expression system for the secretion of intracellular proteins
EP1860027A2 (en) * 2006-05-24 2007-11-28 Haver & Boecker oHG Method and facility for filling containers, in particular for filling sacks
WO2010037511A1 (en) * 2008-10-02 2010-04-08 Knauf Pft Gmbh & Co. Kg Method for conveying a material comprising primarily solid particles, particularly powdered material, for example dry mortar

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US5096096A (en) * 1990-07-16 1992-03-17 Thomas Conveyor Company Fluidized bed discharge bin
US5520889A (en) * 1993-11-02 1996-05-28 Owens-Corning Fiberglas Technology, Inc. Method for controlling the discharge of granules from a nozzle onto a coated sheet
US5405647A (en) * 1993-11-02 1995-04-11 Owens-Corning Fiberglass Technology Inc. Method for applying granules to a moving coated asphalt sheet to form areas having sharp leading and trailing edges
US5599581A (en) * 1993-11-02 1997-02-04 Owens Corning Fiberglas Technology, Inc. Method for pneumatically controlling discharge of particulate material
US5624522A (en) * 1995-06-07 1997-04-29 Owens-Corning Fiberglas Technology Inc. Method for applying granules to strip asphaltic roofing material to form variegated shingles
US5747105A (en) * 1996-04-30 1998-05-05 Owens Corning Fiberglas Technology Inc. Traversing nozzle for applying granules to an asphalt coated sheet
DE19726108A1 (en) * 1997-06-19 1998-12-24 Knaup Maschf Gmbh & Co Sack filling machine for bulk solids e.g. grains or powder
GR1003951B (en) * 2001-07-03 2002-07-18 Κυριακου Αναργυρος Αχυροπουλος Automatic machine for supplying,weighing and packaging materials in powder form
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EP1860027A2 (en) * 2006-05-24 2007-11-28 Haver & Boecker oHG Method and facility for filling containers, in particular for filling sacks
EP1860027A3 (en) * 2006-05-24 2007-12-05 Haver & Boecker oHG Method and facility for filling containers, in particular for filling sacks
WO2010037511A1 (en) * 2008-10-02 2010-04-08 Knauf Pft Gmbh & Co. Kg Method for conveying a material comprising primarily solid particles, particularly powdered material, for example dry mortar

Also Published As

Publication number Publication date
US4735241A (en) 1988-04-05
NO864550L (en) 1987-05-18
ATE46672T1 (en) 1989-10-15
DE3540505C1 (en) 1987-07-02
DE3540505C2 (en) 1995-11-09
NO864550D0 (en) 1986-11-14
ES2011614B3 (en) 1990-02-01
EP0226057B1 (en) 1989-09-27
DE3665846D1 (en) 1989-11-02

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