EP0082955B1 - Device for filling bags - Google Patents

Device for filling bags Download PDF

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Publication number
EP0082955B1
EP0082955B1 EP82110778A EP82110778A EP0082955B1 EP 0082955 B1 EP0082955 B1 EP 0082955B1 EP 82110778 A EP82110778 A EP 82110778A EP 82110778 A EP82110778 A EP 82110778A EP 0082955 B1 EP0082955 B1 EP 0082955B1
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EP
European Patent Office
Prior art keywords
filling
filling funnel
funnel halves
halves
edges
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.)
Expired
Application number
EP82110778A
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German (de)
French (fr)
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EP0082955A3 (en
EP0082955A2 (en
Inventor
Konrad Tetenborg
Heinz Eschmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Windmoeller and Hoelscher KG
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Windmoeller and Hoelscher KG
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Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP0082955A2 publication Critical patent/EP0082955A2/en
Publication of EP0082955A3 publication Critical patent/EP0082955A3/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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/02—Expansible or contractible nozzles, funnels, or guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/04—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers having air-escape, or air-withdrawal, passages

Definitions

  • the invention relates to a device for filling bags according to the preamble of claim 1.
  • a filling device for sacks is known from US-A-40 56132, in which a housing is provided which encloses the holding area and from which the dust which otherwise escapes into the surroundings is sucked off.
  • the object of the invention is to provide a device of the type specified at the outset, with which bags can be filled essentially dust-free.
  • the profiled spreading plates in the area of the gripping devices can bear sealingly against the edge of the sack spanned by the filling funnel halves, so that the opening cross section of the spreading filling funnel halves essentially corresponds to the profile of the spanned sack opening.
  • the clamping devices which usually consist of pliers, are at a constant distance from one another when the bags are gripped, so that the bag openings spanned by the filling funnel halves have the same size even with bags of different widths. Since the filling funnel halves fit well against the inner wall of the opened sack opening in their spread state, no channels remain through which dust could escape in a disruptive manner. Since the gripping tongs pinch off the side areas of the opening sides of the sacks to be filled, sacks provided with gussets can be filled in the same way as sacks without gussets with the device according to the invention.
  • the profiles of the expansion plates can have an approximately circular or elliptical shape or can be formed by the legs of an isosceles triangle.
  • the spreading plates shaped in this way can be pivoted close to the gripping devices without causing inadmissibly high tensions in the edge region of the stretched bag.
  • the side edges of the profiled sheets are connected to sheets of the filling funnel halves which are parallel to the pivot axes and which delimit channels with the profiled sheets. These channels can be covered to prevent dust from escaping or can also be connected to suction channels so that dust can be extracted through them during the filling process.
  • parallel side walls are arranged on the lateral edges of the spreading plates to the pivoting plane of the filling funnel halves, which overlap one another over their full height in the pivoted-out position. This configuration ensures that there are no gaps between the spreading funnel halves from which dust could escape.
  • the suction cups release the edge of the sack during spreading so that it can fit tightly against the spreading funnel halves.
  • the filling speed can be increased significantly if the opening of the filling funnel halves can be started immediately with the filling of the attached sack and does not have to be waited until the inflow to the filler neck is released after the filling funnel halves have spread.
  • the two halves 1, 2 of the funnel are mounted on a support piece 21 which can be fastened to the filling tube or a frame so as to be pivotable about axes and shafts 7, 8 which are parallel and horizontal to one another.
  • the two hopper halves 1, 2 have an essentially U-shaped cross section and are arranged in mirror image to one another.
  • the side walls 1.1 and 1.2 of the hopper half 1, the cross section of which can be seen in FIG. 2, partially overlap the corresponding side walls of the other hopper half 2 in the pivoted-in position and in the pivoted-out position over their entire height, as shown in FIG. 1 in the extended and dash-dotted lines is shown.
  • Suction pipes 5, 6 are attached to the rear walls 1.3 of the filling funnel halves 1, 2. In their lower area, which dips into the sacks to be filled, these have the cross section of an isosceles triangle, the length of the base of this isosceles triangle corresponding to the width of the rear wall of the filling funnel halves 1, 2. In the lower area of the hopper halves, the suction tubes 5, 6, which are triangular in cross section, are connected to them. Above their triangular cross-sectional area, the suction pipes 5, 6 change their cross-section and these are connected to a suction pump via flexible pipes, not shown.
  • a lever 10 is rotatably fastened, at the free end of which the piston rod of a pneumatic cylinder 9 is articulated.
  • the hopper half 2 can thus be pivoted.
  • a further lever 22 is fastened at an angle to the lever 10 on the shaft 8.
  • one end of a coupling rod 11 is articulated, the other end of which is articulated to the free end of the lever 12 which is fastened on the shaft 7 pivoting the hopper half 1.
  • the pneumatic cylinder 9 can thus simultaneously pivot both filling funnel halves 1 between their swiveled-in position shown in solid lines and their swung-out filling position 1 ', 2', 5 ', 6' shown in dash-dot lines.
  • Fig. 3 in a section along the line III-III in Fig. 1, the hopper halves in their pivoted position 1, 2 and their pivoted position 1 ', 2' are shown schematically.
  • the side walls of the filling opening of a sack 16, which are folded onto one another in their side regions, are held by the grippers 17, 18, which are shown only schematically by their clamping jaws.
  • Suction cups 19, 20, which engage in the central regions of the side edges of the filling opening of the bag, open the bag opening in the manner shown by line 16.1 after the grippers 17, 18 in the positions shown in FIGS. 1 and 3 against each other have been driven.
  • the lower ends of the hopper halves 1, 2 are pivoted from the position shown in full lines in FIG.

Description

Die Erfindung betrifft eine Vorrichtung zum Befüllen von Säcken nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for filling bags according to the preamble of claim 1.

Bei einer aus der DE-PS 26 29 065 bekannten Vorrichtung dieser Art werden die noch flachen Säcke im Bereich ihrer Seitenfalten durch zwei einander gegenüberliegende, zangenartige Klemmeinrichtungen gehalten und die Öffnungsränder durch die Sauger auseinandergezogen. Die klappenartigen Fülltrichterhälften sind dabei um quer zur Aufzugsrichtung liegende, also zu der die Greifeinrichtungen verbindenden Linie parallele Achsen schwenkbar. Dabei lässt sich nicht vermeiden, dass zwischen den Spreizplatten und den Klemmeinrichtungen bei gespreizten Fülltrichterhälften im Querschnitt etwa dreieckige Kanäle verbleiben, durch die beim Füllen Staub entweichen kann.In a device of this type known from DE-PS 26 29 065, the still flat bags are held in the region of their side folds by two opposing, pincer-like clamping devices and the opening edges are pulled apart by the suction cups. The flap-like hopper halves can be pivoted about axes parallel to the direction of the elevator, that is to say to the line connecting the gripping devices. It cannot be avoided that approximately triangular channels remain in cross section between the expansion plates and the clamping devices when the filling funnel halves are spread, through which dust can escape during filling.

Aus der DE-OS 28 50 668 ist eine Vorrichtung zum Befüllen von Säcken mit spreizbaren Fülltrichterhälften bekannt, bei der zur Vermeidung einer Staubentwicklung beim Füllen das Füllrohr von einem Saugrohr konzentrisch umgeben ist, so dass durch den Ringkanal zwischen dem Füllrohr und Saugrohr Staub abgesaugt werden kann. Dabei sind zum Abdichten gegen Falschluft zwischen den Seitenwänden der Fülltrichterhälften an diesen befestigte elastische Bahnen gespannt, die die Spreizung der Fülltrichterhälften durch elastische Verformung mitmachen. Durch diese bekannte Vorrichtung kann aber nicht verhindert werden, dass Staub aus den Öffnungen zwischen den äusseren Wandungen der gespreizten Fülltrichterhälften und dem an diese angeklemmten Öffnungsrand des zu füllenden Sackes austritt.From DE-OS 28 50 668 a device for filling sacks with expandable filling funnel halves is known, in which the filling pipe is concentrically surrounded by a suction pipe to avoid the development of dust when filling, so that dust is sucked out through the ring channel between the filling pipe and suction pipe can. To seal against false air between the side walls of the hopper halves, stretched elastic webs are stretched thereon, which take part in the expansion of the hopper halves by elastic deformation. However, this known device cannot prevent dust from escaping from the openings between the outer walls of the spreading funnel halves and the opening edge of the sack to be filled which is clamped onto them.

Aus der US-A-38 30 266 ist eine Füllvorrichtung fürSäcke bekannt, bei der die Sackränderzunächst durch Sauger vorgeöffnet werden und anschliessend in die Sackeinfüllöffnung Fülltrichterhälften eintauchen, die den Sack aufspreizen. Es fehlen aber Klemmeinrichtungen, die den noch flach liegenden Sack im Bereich seiner Öffnungsränder und Seitenkanten festklemmen. Demgegenüber sind bei der bekannten Vorrichtung zum Halten der Säcke während des Befüllens Gegendruckplatten vorgesehen, die den Sack zwischen sich und den gespreizten Fülltrichterhälften einklemmen. Dies bringt den Nachteil mit sich, dass ein Übermass von Säcken nicht ausgeglichen werden kann, so dass es durch Faltenbildungen zu Öffnungen kommen kann, aus denen Staub entweicht.From US-A-38 30 266 a filling device for sacks is known, in which the sack edges are first opened by means of suction devices and then immersed in the sack filling opening, filling funnel halves which spread the sack. However, there are no clamping devices which clamp the sack, which is still lying flat, in the area of its opening edges and side edges. In contrast, in the known device for holding the bags during filling, counterpressure plates are provided which clamp the bag between itself and the spreading funnel halves. This has the disadvantage that an excessive amount of sacks cannot be compensated for, so that folds can lead to openings from which dust escapes.

Aus der US-A-40 56132 ist eine Füllvorrichtung für Säcke bekannt, bei der ein den Haltebereich einfassendes Gehäuse vorgesehen ist, aus dem der sonst in die Umgebung entweichende Staub abgesaugt wird.A filling device for sacks is known from US-A-40 56132, in which a housing is provided which encloses the holding area and from which the dust which otherwise escapes into the surroundings is sucked off.

Aufgabe der Erfindung ist es, eine Vorrichtung der eingangs angegebenen Art zu schaffen, mit der sich Säcke im wesentlichen staubfrei befüllen lassen.The object of the invention is to provide a device of the type specified at the outset, with which bags can be filled essentially dust-free.

Erfindungsgemäss wird diese Aufgabe durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst.According to the invention this object is achieved by the features specified in the characterizing part of claim 1.

Bei der erfindungsgemässen Vorrichtung können sich die profilierten Spreizbleche im Bereich der Greifeinrichtungen dichtend an den durch die Fülltrichterhälften aufgespannten Sackrand anlegen, so dass der Öffnungsquerschnitt der gespreizten Fülltrichterhälften im wesentlichen dem Profil der aufgespannten Sacköffnung entspricht. Die üblicherweise aus Zangen bestehenden Klemmeinrichtungen weisen beim Ergreifen der Säcke einen konstanten Abstand voneinander auf, so dass die von den Fülltrichterhälften aufgespannten Sacköffnungen auch bei unterschiedlich breiten Säcken dieselbe Grösse aufweisen. Da sich die Fülltrichterhälften in ihrem gespreizten Zustand an die Innenwandung der aufgespannten Sacköffnung gut anlegen, verbleiben keine Kanäle, durch die in störender Weise Staub entweichen könnte. Da die Greifzangen die Seitenbereiche der Öffnungsseiten der zu füllenden Säcke abklemmen, lassen sich mit der erfindungsgemässen Vorrichtung mit Seitenfalten versehene Säcke in gleicher Weise befüllen wie Säcke ohne Seitenfalten.In the device according to the invention, the profiled spreading plates in the area of the gripping devices can bear sealingly against the edge of the sack spanned by the filling funnel halves, so that the opening cross section of the spreading filling funnel halves essentially corresponds to the profile of the spanned sack opening. The clamping devices, which usually consist of pliers, are at a constant distance from one another when the bags are gripped, so that the bag openings spanned by the filling funnel halves have the same size even with bags of different widths. Since the filling funnel halves fit well against the inner wall of the opened sack opening in their spread state, no channels remain through which dust could escape in a disruptive manner. Since the gripping tongs pinch off the side areas of the opening sides of the sacks to be filled, sacks provided with gussets can be filled in the same way as sacks without gussets with the device according to the invention.

Die Profile der Spreizbleche können eine etwa kreisrunde oder elliptische Form aufweisen oder durch die Schenkel eines gleichschenkeligen Dreiecks gebildet werden. Die derart geformten Spreizplatten lassen sich bis dicht an die Greifeinrichtungen heranschwenken, ohne dass in dem Randbereich des aufgespannten Sackes unzulässig hohe Spannungen entstehen.The profiles of the expansion plates can have an approximately circular or elliptical shape or can be formed by the legs of an isosceles triangle. The spreading plates shaped in this way can be pivoted close to the gripping devices without causing inadmissibly high tensions in the edge region of the stretched bag.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, dass die Seitenränder der profilierten Bleche mit zu den Schwenkachsen parallelen Blechen der Fülltrichterhälften verbunden sind, die mit den profilierten Blechen Kanäle begrenzen. Diese Kanäle können abgedeckt sein, um einen Austritt von Staub zu verhindern, oder aber auch an Saugkanäle angeschlossen sein, so dass durch diese während des Füllvorgangs Staub abgesaugt werden kann.In a further embodiment of the invention it is provided that the side edges of the profiled sheets are connected to sheets of the filling funnel halves which are parallel to the pivot axes and which delimit channels with the profiled sheets. These channels can be covered to prevent dust from escaping or can also be connected to suction channels so that dust can be extracted through them during the filling process.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, dass an den seitlichen Rändern der Spreizbleche zu der Schwenkebene der Fülltrichterhälften parallele Seitenwände angeordnet sind, die einander in der ausgeschwenkten Stellung über ihre volle Höhe überlappen. Diese Ausgestaltung stellt sicher, dass auch zwischen den gespreizten Fülltrichterhälften keine Spalte verbleiben, aus denen Staub entweichen könnte. Die Sauger geben während des Spreizens den Sackrand frei, so dass sich dieser eng an die gespreizten Fülltrichterhälften anlegen kann.In a further embodiment of the invention, it is provided that parallel side walls are arranged on the lateral edges of the spreading plates to the pivoting plane of the filling funnel halves, which overlap one another over their full height in the pivoted-out position. This configuration ensures that there are no gaps between the spreading funnel halves from which dust could escape. The suction cups release the edge of the sack during spreading so that it can fit tightly against the spreading funnel halves.

Nach einer erfinderischen Weiterentwicklung ist vorgesehen, dass in der eingeschwenkten Stellung der Fülltrichterhälften deren Stirnkanten und Seitenwände dichtend aneinanderliegen. Diese Ausgestaltung ermöglicht es, die Fülltrichterhälften gleichsam als Verschlussklappen für den Einfüllstutzen zu verwenden, so dass sofort mit der Öffnung der Fülltrichterhälften ohne zeitliche Verzögerung die Füllung des angeklemmten Sakkes beginnen kann. Die Fülltrichterhälften bilden also einen eigenen Verschluss, der insbesondere dann von Vorteil ist, wenn bei Ausbleiben eines Sackes das Auslaufen von Füllgut in die Füllvorrichtung vermieden werden soll.According to an inventive further development, it is provided that in the swiveled-in position of the filling funnel halves, their front edges and side walls lie sealingly against one another. This configuration makes it possible to use the filling funnel halves as closing flaps for the filler neck, so that the filling of the clamped-on jacket can begin immediately with the opening of the filling funnel halves. The hopper halves thus form their own closure, which is particularly advantageous if one is absent Sackes the leakage of product to be avoided in the filling device.

Weiterhin lässt sich die Füllgeschwindigkeit wesentlich erhöhen, wenn mit der Füllung des angeklemmten Sackes sofort mit der Öffnung der Fülltrichterhälften begonnen werden kann und nicht erst gewartet werden muss, bis nach dem Spreizen der Fülltrichterhälften der Zulauf zu dem Einfüllstutzen freigegeben wird.Furthermore, the filling speed can be increased significantly if the opening of the filling funnel halves can be started immediately with the filling of the attached sack and does not have to be waited until the inflow to the filler neck is released after the filling funnel halves have spread.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt

  • Fig. 1 eine Seitenansicht des Fülltrichters,
  • Fig. 2 einen Schnitt durch den Fülltrichter entlang der Linie 11-11 in Fig. 1 und
  • Fig. 3 einen Schnitt durch eine Fülltrichterhälfte längs der Linie 111-111 in Fig. 1.
An embodiment of the invention is explained below with reference to the drawing. In this shows
  • 1 is a side view of the hopper,
  • Fig. 2 shows a section through the hopper along the line 11-11 in Fig. 1 and
  • 3 shows a section through a filling funnel half along the line 111-111 in FIG. 1.

Im unteren Endbereich des Füllrohrs 3 sind die beiden Fülltrichterhälften 1, 2 auf einem Tragstück 21, das an dem Füllrohr oder einem Gestell befestigt sein kann, um zueinander parallele und waagerecht liegende Achsen oder Wellen 7, 8 schwenkbar gelagert. Die beiden Fülltrichterhälften 1, 2 weisen einen im wesentlichen U-förmigen Querschnitt auf und sind spiegelbildlich zueinander angeordnet. Die Seitenwände 1.1 und 1.2 der Fülltrichterhälfte 1, deren Querschnitt aus Fig. 2 ersichtlich ist, überlappen die entsprechenden Seitenwände der anderen Fülltrichterhälfte 2 in der eingeschwenkten Stellung teilweise und in der ausgeschwenkten Stellung über ihre gesamte Höhe, wie es in Fig. 1 in ausgezogenen und strichpunktierten Linien dargestellt ist.In the lower end region of the filling tube 3, the two halves 1, 2 of the funnel are mounted on a support piece 21 which can be fastened to the filling tube or a frame so as to be pivotable about axes and shafts 7, 8 which are parallel and horizontal to one another. The two hopper halves 1, 2 have an essentially U-shaped cross section and are arranged in mirror image to one another. The side walls 1.1 and 1.2 of the hopper half 1, the cross section of which can be seen in FIG. 2, partially overlap the corresponding side walls of the other hopper half 2 in the pivoted-in position and in the pivoted-out position over their entire height, as shown in FIG. 1 in the extended and dash-dotted lines is shown.

An den Rückwänden 1.3 der Fülltrichterhälften 1, 2 sind Saugrohre 5, 6 befestigt. Diese weisen in ihrem unteren, in die zu befüllenden Säcke eintauchenden Bereich den Querschnitt eines gleichschenkeligen Dreiecks auf, wobei die Länge der Basis dieses gleichschenkeligen Dreiecks der Breite der Rückwand der Fülltrichterhälften 1, 2 entspricht. Im unteren Bereich der Fülltrichterhälften sind die im Querschnitt dreieckigen Saugrohre 5, 6 mit diesen verbunden. Oberhalb ihres im Querschnitt dreieckigen Bereichs ändern die Saugrohre 5, 6 ihren Querschnitt und diese sind über nicht dargestellte flexible Rohrleitungen mit einer Saugpumpe verbunden.Suction pipes 5, 6 are attached to the rear walls 1.3 of the filling funnel halves 1, 2. In their lower area, which dips into the sacks to be filled, these have the cross section of an isosceles triangle, the length of the base of this isosceles triangle corresponding to the width of the rear wall of the filling funnel halves 1, 2. In the lower area of the hopper halves, the suction tubes 5, 6, which are triangular in cross section, are connected to them. Above their triangular cross-sectional area, the suction pipes 5, 6 change their cross-section and these are connected to a suction pump via flexible pipes, not shown.

Auf der die Fülltrichterhälfte 2 in dem Tragstück 21 schwenkbar lagernden Welle ist drehfest ein Hebel 10 befestigt, an dessen freiem Ende die Kolbenstange eines Pneumatikzylinders 9 angelenkt ist. Durch Betätigung des Pneumatikzylinders 9 kann somit die Fülltrichterhälfte 2 verschwenkt werden. Zur Übertragung der Schwenkbewegung auf die andere Fülltrichterhälfte 1 ist winkelig zu dem Hebel 10 auf der Welle 8 ein weiterer Hebel 22 befestigt. An dem freien Ende dieses Hebels 22 ist ein Ende einer Koppelstange 11 angelenkt, deren anderes Ende an dem freien Ende des Hebels 12 angelenkt ist, der auf der die Fülltrichterhälfte 1 verschwenkenden Welle 7 befestigt ist. Durch den Pneumatikzylinder 9 lassen sich somit gleichzeitig beide Fülltrichterhälften 1 zwischen ihrer eingeschwenkten, in ausgezogenen Linien dargestellten Stellung und ihrerausgeschwenkten, strichpunktiert dargestellten Füllstellung, 1', 2', 5', 6' verschwenken.On the half of the hopper 2 pivotally mounted in the support piece 21, a lever 10 is rotatably fastened, at the free end of which the piston rod of a pneumatic cylinder 9 is articulated. By actuating the pneumatic cylinder 9, the hopper half 2 can thus be pivoted. To transmit the pivoting movement to the other hopper half 1, a further lever 22 is fastened at an angle to the lever 10 on the shaft 8. At the free end of this lever 22 one end of a coupling rod 11 is articulated, the other end of which is articulated to the free end of the lever 12 which is fastened on the shaft 7 pivoting the hopper half 1. The pneumatic cylinder 9 can thus simultaneously pivot both filling funnel halves 1 between their swiveled-in position shown in solid lines and their swung-out filling position 1 ', 2', 5 ', 6' shown in dash-dot lines.

In Fig. 3 sind in einem Schnitt entlang der Linie III-III in Fig. 1 die Fülltrichterhälften in ihrer eingeschwenkten Stellung 1, 2 und ihrer ausgeschwenkten Stellung 1', 2' schematisch dargestellt. Die in ihren Seitenbereichen aufeinandergefalteten Seitenwände der Einfüllöffnung eines Sackes 16 werden durch die schematisch nur durch ihre Klemmbacken dargestellten Greifer 17, 18 gehalten. Durch Sauger 19, 20, die in den mittleren Bereichen der Seitenränder der Einfüllöffnung des Sackes angreifen, wird die Sacköffnung in der durch die Linie 16.1 dargestellten Weise geöffnet, nachdem die Greifer 17, 18 in die aus den Fig. 1 und 3 ersichtlichen Stellungen gegeneinander gefahren worden sind. Nachdem der Sack durch die Sauger 19, 20 geöffnet worden ist, werden die unteren Enden der Fülltrichterhälften 1, 2 aus der in Figur 3 in vollen Linien dargestellten Stellung durch Betätigung des Pneumatikzylinders 9 in die Stellung 1', 2' geschwenkt und gleichzeitig wird die Saugluft der Sauger 19, 20 abgeschaltet, so dass die Fülltrichterhälften den Öffnungsrand des Sackes in der aus Fig. 3 ersichtlichen Weise auseinanderziehen.In Fig. 3 in a section along the line III-III in Fig. 1, the hopper halves in their pivoted position 1, 2 and their pivoted position 1 ', 2' are shown schematically. The side walls of the filling opening of a sack 16, which are folded onto one another in their side regions, are held by the grippers 17, 18, which are shown only schematically by their clamping jaws. Suction cups 19, 20, which engage in the central regions of the side edges of the filling opening of the bag, open the bag opening in the manner shown by line 16.1 after the grippers 17, 18 in the positions shown in FIGS. 1 and 3 against each other have been driven. After the sack has been opened by the suction cups 19, 20, the lower ends of the hopper halves 1, 2 are pivoted from the position shown in full lines in FIG. 3 by actuating the pneumatic cylinder 9 to the position 1 ', 2' and at the same time the Suction air of the suction devices 19, 20 is switched off, so that the filling funnel halves pull the opening edge of the sack apart in the manner shown in FIG. 3.

In der Füllstellung l', 2' liegt die zwischen den Greifern 17, 18 eingespannte Einfüllöffnung des Sackes 16 unter Zugspannung an den Fülltrichterhälften an, so dass seitlich kein Staub entweichen kann. Das Befüllen des Sackes erfolgt nun unter gleichzeitigem Absaugen des Füllgutstaubes.In the filling position 1 ', 2', the filling opening of the bag 16 clamped between the grippers 17, 18 rests under tension on the filling funnel halves, so that no dust can escape laterally. The sack is now filled with simultaneous suction of the filling dust.

Claims (6)

1. Apparatus for filling sacks (16) comprising gripping means (17, 18), which serve to hold the flat sacks adjacent to their opening-defining edges and their side edges and have clamping jaws for engaging the outside side faces of the sack, as well as mutually opposite end faces, which are spaced a predetermined distance apart, also comprising suckers (19, 20), which engage mutually opposite side faces adjacent to the opening-defining edges and pull open said edges, and a filling pipe (3), which is provided with filling funnel halves (1, 2), which are pivotally movable in mutually opposite senses about parallel axes (7, 8) and comprise spreading plates for pulling open the opening-defining edges, characterized in that the pivotal axes (7, 8) of the filling funnel halves (1, 2) extend transversely to the line which connects the gripping means (17, 18) and the spreading plates of the filling funnel halves (1, 2) have substantially convex profiles, which have outwardly faces apices, which are mirror images of each other and disposed on the vertical plane of symmetry of the gripping means (17, 18).
2. Apparatus according to claim 1, characterized in that the profiles of the filling funnel halves (1, 2) have an approximately circular or elliptical configuration.
3. Apparatus according to claim 1, characterized in that the profiles of the filling funnel halves (1, 2) have the configuration of an isosceles triangle.
4. Apparatus according to any of the preceding claims, characterized in that the side edges of the profiled surface are connected to sheet metal elements of the filling funnel halves (1, 2), and said sheet metal elements are parallel to the pivotal axes and together with the profiled sheet metal elements define passages (5).
5. Apparatus according to any of the preceding claims, characterized in that side walls (1.1, 1.2), which are parallel to the plane in which the filling funnel halves (1, 2) are pivotally movable, are provided at the side edges of the spreading plates and overlap each other throughout their height when the filling funnel halves are in their swung- out position.
6. Apparatus according to any of the preceding claims, characterized in that the end edges and side walls (1.1, 1.2) are in sealing contact with each other when the filling funnel halves (1, 2) are in their swung-in position.
EP82110778A 1981-11-23 1982-11-22 Device for filling bags Expired EP0082955B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3146319 1981-11-23
DE3146319 1981-11-23

Publications (3)

Publication Number Publication Date
EP0082955A2 EP0082955A2 (en) 1983-07-06
EP0082955A3 EP0082955A3 (en) 1983-10-12
EP0082955B1 true EP0082955B1 (en) 1988-05-11

Family

ID=6146974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82110778A Expired EP0082955B1 (en) 1981-11-23 1982-11-22 Device for filling bags

Country Status (8)

Country Link
US (1) US4537013A (en)
EP (1) EP0082955B1 (en)
JP (1) JPS5899328A (en)
BR (1) BR8206744A (en)
CA (1) CA1220458A (en)
DE (1) DE3278468D1 (en)
ES (1) ES517570A0 (en)
SU (1) SU1303022A3 (en)

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DE4423964C1 (en) * 1994-07-07 1995-12-07 Windmoeller & Hoelscher Device for filling bags

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JPS60172601A (en) * 1984-12-25 1985-09-06 中部自動機株式会社 Deaerator in automatic packer for cereals
DE3832634A1 (en) * 1988-09-26 1990-03-29 Windmoeller & Hoelscher DEVICE FOR FEELING BAGS
AT406367B (en) * 1991-02-27 2000-04-25 Binder Co Ag Vertically adjustable filling device
DE4209117A1 (en) * 1991-12-23 1993-06-24 Windmoeller & Hoelscher FILLING DEVICE
DE9207679U1 (en) * 1992-03-23 1992-08-27 Windmoeller & Hoelscher, 4540 Lengerich, De
US5337798A (en) * 1993-04-06 1994-08-16 Leinweber Systems, Inc. Friction material distributor funnel
DE69501107T2 (en) * 1994-10-24 1998-08-06 Bagfilla Overseas Ltd Filling head
ES2166242B2 (en) * 1999-01-22 2003-07-01 Payper Sa DISCHARGE MOUTH FOR SACK FILLING MACHINES.
US6381929B1 (en) * 2000-03-14 2002-05-07 Tien Heng Machinery Co., Ltd. Automatic bagging machine using cool-shrinking film
US20020121075A1 (en) * 2001-03-02 2002-09-05 Optima Machinery Corporation Bag welding method and assembly for a bag filling station
US6658823B2 (en) * 2002-01-23 2003-12-09 Johnsen Machine Company Limited Bag opening and closing machine
CA2465185A1 (en) 2004-04-26 2005-10-26 Stephane Marceau Bag filling and sealing apparatus for packing loose material
SE0600764L (en) * 2006-04-03 2007-10-04 Ecolean Res & Dev As Device and method of filling a package
DE102007015298A1 (en) * 2007-03-27 2008-10-02 Windmöller & Hölscher Kg Machine for filling and closing sacks
ITAR20120036A1 (en) * 2012-11-09 2014-05-10 Umbra Packaging S R L INCREASED PACKAGING MACHINE, PARTICULARLY FOR SMALL SIZE PRE-FORMED BAGS.
CA2886722C (en) 2014-04-04 2018-03-06 Concetti S.P.A. Apparatus for filling bags with adjustment of the opening/closing travel of the bag-holder valves

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Publication number Priority date Publication date Assignee Title
DE4423964C1 (en) * 1994-07-07 1995-12-07 Windmoeller & Hoelscher Device for filling bags

Also Published As

Publication number Publication date
DE3278468D1 (en) 1988-06-16
ES8307638A1 (en) 1983-08-16
ES517570A0 (en) 1983-08-16
CA1220458A (en) 1987-04-14
EP0082955A3 (en) 1983-10-12
EP0082955A2 (en) 1983-07-06
JPS5899328A (en) 1983-06-13
BR8206744A (en) 1983-10-04
SU1303022A3 (en) 1987-04-07
US4537013A (en) 1985-08-27
JPH044208B2 (en) 1992-01-27

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