EP0228541B1 - Apparatus for closing filled bags - Google Patents

Apparatus for closing filled bags Download PDF

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Publication number
EP0228541B1
EP0228541B1 EP86115492A EP86115492A EP0228541B1 EP 0228541 B1 EP0228541 B1 EP 0228541B1 EP 86115492 A EP86115492 A EP 86115492A EP 86115492 A EP86115492 A EP 86115492A EP 0228541 B1 EP0228541 B1 EP 0228541B1
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EP
European Patent Office
Prior art keywords
rollers
roller
opening edges
closing
carriage
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 - Lifetime
Application number
EP86115492A
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German (de)
French (fr)
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EP0228541A1 (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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Filing date
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Publication of EP0228541A1 publication Critical patent/EP0228541A1/en
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Publication of EP0228541B1 publication Critical patent/EP0228541B1/en
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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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/04—Applying separate sealing or securing members, e.g. clips
    • B65B51/07—Sewing or stitching
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
    • B65B7/06—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks by collapsing mouth portion, e.g. to form a single flap

Definitions

  • the invention relates to a device for closing filled bags according to the preamble of claim 1.
  • slip occurs between the sack flag formed by the superimposed sack edges of the filled sack and the rollers pulling them out, so that the sack edges are damaged by the rollers and the upper edges of the pulled-out flags become can be located at different heights according to different filling levels. For the subsequent processing operations it is therefore necessary either to trim the protruding flags or to align the bags in their height.
  • the object of the invention is to provide a locking device according to the preamble of claim 1, in which the flags formed by the extended sack edges have a precisely defined height.
  • the sack flag is pulled forward by the pair of preferred rollers without any slippage between this and the sack material. Since the rollers of the pair of preferred rollers always run through a precisely defined angle of rotation, the advanced flag always has a precisely defined height, so that later processing operations, such as the application of a rider tape, can be carried out without further adjustments or trimming.
  • a filling station 1 and a rotating drum-shaped feed device 3 rotating about the horizontal transverse axis 2 is shown with pair of eight gripper tongs 4 distributed over the circumference, which are designed in the manner described in DE-PS 26 29 065, so that here a detailed description is omitted.
  • the pair of gripper tongs 4 arranged laterally on the drum-shaped feed device 3 place the filled sack 5 on the feed end of the belt conveyor 6, the flattened opening edge of the sack 5 being held horizontally by the gripper tongs 4 with a protruding flag.
  • the clamping jaws of the second gripping device of the sewing device consisting of rollers 7, 8, take over the flattened opening edges and clamp them firmly on the outer flags between them.
  • the carriage carrying the rollers 7, 8 is moved together with the bag 5 transported on the conveyor belt 6 into the sewing position 10.
  • the rollers 7, 8 pivot together about the axis of the lower roller 7, so that in the sewing position 10 the flattened opening edge is vertical in the manner shown.
  • the transport under the roller 7 performs a rotary movement, so that the flattened opening edge is advanced by the rollers 7, 8, forming a pair of transport rollers, to the extent that the edge strip of the opening edge is long enough to use the sewing machine II to close one of the opening edges
  • Execute seam the opening edges can be folded over or rolled in and the sewing seam is carried out through the folded over or rolled-in area.
  • the conveyor belt 6 is provided in the manner shown with support brackets 12 which support the bags 5 and hold them in their vertical position during transport.
  • the slide supporting the rollers 7, 8 can be moved on guide rails in synchronism with the bags 5 from the depositing position of the bags into the sewing position.
  • a spindle 14 driven by the motor 13 is provided for moving the carriage.
  • the bags 5 closed by sewing seams are dropped onto the conveyor belt 15 following and transported away.
  • the carriage supporting the rollers 7, 8 is explained in more detail below with reference to FIGS. 3 and 4.
  • the carriage consists of a frame formed by a triangular-shaped carrier, which is connected via support plates 18 to sliding bushes, not shown, which are guided on mutually parallel guide rods 19.
  • the horizontal cross member 20 of the frame 17 is screwed at the end in a fork shape with bearing plates 21 which are provided with bearing bores in which the shaft journals 22 of the roller 7 are rotatably mounted.
  • the lateral legs 23 of a bow-shaped frame 24 are clamped onto the outer ends of the shaft journals 22, so that the latter can be pivoted about the longitudinal axis of the roller 7.
  • the side legs 23 of the bow-shaped frame 24 are provided with elongated holes 25, in which the shaft journals 26 of the upper roller 8 are slidably guided.
  • the shaft journals 26 are connected to the piston rods 27 by pneumatic cylinders 28, which in turn are shown in FIG Are fixed in the bow-shaped frame 24.
  • the pneumatic cylinder 28 can move the roller 8 against the roller 7 and lift it off.
  • the roller 8 has a jacket which is freely rotatable relative to the axle journals 26 connected to the piston rods 27.
  • the upper angled arm 30 of an angle lever 31 is clamped, which is articulated with the end of its longer arm in the joint 33 with the coupling rod 34, which is pivotably mounted in the joint 35 in the machine frame 36.
  • the shorter arm 30 of the angle lever 31 can be seen in plan view in FIG. 4.
  • the longer, downward-pointing arm of the angle lever 31 can be seen in cross section in FIG. 4 and is indicated by a solid line and a dashed line.
  • the joint 33 is only indicated in FIG. 4 by a dash-dotted line.
  • the coupling rod 34 is articulated in the manner shown in FIG. 4 at the end of a bolt 38 which is fastened in the manner shown in FIG. 4 to the vertical angle profile 39 of the frame 36.
  • the bow-shaped frame 24 pivotably mounted on the pin 22 of the lower roller 7 is provided with U-shaped holding pieces 40, 41 which hold the hydraulic cylinders 28.
  • a further coupling rod 42 is articulated, the other end of which is articulated on the bolt 44, which is also fastened to the vertical profile 39 of the frame 36.
  • the lengths of the coupling rods 34, 42 and their articulation points on the vertical profile 39 of the frame 36 as well as the articulation point of the coupling rod 42 on the holding piece 41 of the frame 24 and the lengths of the arms of the angle lever 31 are chosen such that in a method of the carriage 16 1 and 2 into the sewing position 10 shown in FIG. 1, the bow-shaped frame 24 is pivoted from its vertical position into a horizontal position and the roller 7 moves the opening edges detected only on the outer flags by the desired Prefers length.
  • the coupling rod 42 forms with the frame 24 and the coupling rod 34 with the angle lever 31 each a coupling rod lever gear, through which the frame 24 is pivoted between its vertical position and its horizontal position and on the other hand the lower roller 7 the required rotation to give preference to the flattened opening edge.
  • the required drive is derived from the carriage 16.
  • the carriage 16 is displaceable on the guide rods 19 via bushings, not shown, which run parallel to the conveyor belt 6.
  • the guide rods 19 are fastened to end holding plates 50, 51 which are connected to one another parallel to the guide rods by the carrier profiles 52, 53.
  • the carrier profiles 52, 53 and possibly also the holding plate 51 are connected to the vertical profile 39 of the frame 36.
  • the carriage 16 is firmly connected to a spindle nut 55 into which the spindle 14 is inserted.
  • the spindle 14 is rotatably mounted in the holding plate 50.
  • the motor 56 which drives the spindle 14, is additionally flanged to the holding plate 50.
  • the motor 56 is controlled in such a way that it moves the carriage 16 synchronously with the conveyor belt 6 from the receiving station into the sewing station.
  • a cross member 60 is fastened to the vertical profiles 39 in the manner shown in FIG. 3 and carries the profiles 62, 63 via holding pieces 61.
  • the profiles 62, 63 are connected at the end in a leg-like manner to support plates 65, 66, between which guide rods 67, 68 are fastened at a distance and parallel to one another.
  • a carriage 70 carrying the sewing machine 11 can be moved on these guide rods 67, 68 and is guided on the guide rods 67, 68 via bushings (not shown).
  • the carriage is provided with a spindle nut into which the spindle 72 shown in FIG. 2 is screwed.
  • the spindle is driven by the motor 73 flanged to the holding plate 66.
  • the sewing machine 11 fastened on the carriage can thus be moved in the transverse direction to the conveyor belt 6 by the spindle drive in order to attach the sewing seam to the opening edges fixed in the sewing position by the rollers 7, 8.
  • Fig. 3 the frame 36, 39 is shown in an extended position, as is illustrated by the vertical profiles 39 shown twice.
  • the sack 5 is shown immediately after being placed on the conveyor belt 6.
  • the rollers 7, 8 are still at a distance from the pliers-like gripping members 4 projecting from the flag 75.
  • the bag is placed on the conveyor belt 6 after it has been filled by the filling device 80 by means of gripping or holding devices (not shown).
  • the rollers 7, 8 forming a pair of preferred rollers are moved together by a device, not shown, so that they clamp the vertical and superimposed opening edges of the filled bag between them.
  • the rollers 7, 8 advance the opening edges lying one on top of the other so far that they can be closed by a sewing seam even after being folded once or several times.
  • rollers 7, 8 are arranged in a carriage running in a guide, which is driven synchronously with the conveyor belt 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Package Closures (AREA)
  • Sewing Machines And Sewing (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Verschließen von gefüllten Säcken nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a device for closing filled bags according to the preamble of claim 1.

Bei einer aus DE-A-26 23 196 bekannten Vorrichtung dieser Art tritt ein Schlupf zwischen durch die aufeinandergelegten Sackränder des gefüllten Sackes gebildeten Sackfahne und den diese ausziehenden Walzen auf, so daß die Sackränder durch die Walzen beschädigt werden und die Oberkanten der ausgezogenen Fahnen sich entsprechend uuhterschiedlicher Füllhöhen auf unterschiedlichen Höhen befinden können. Für die nachfolgenden Bearbeitungsvorgänge ist es daher entweder erforderlich, die überstehenden Fahnen zu besäumen oder aber die Säcke in ihrer Höhenlage auszurichten.In a device of this type known from DE-A-26 23 196, slip occurs between the sack flag formed by the superimposed sack edges of the filled sack and the rollers pulling them out, so that the sack edges are damaged by the rollers and the upper edges of the pulled-out flags become can be located at different heights according to different filling levels. For the subsequent processing operations it is therefore necessary either to trim the protruding flags or to align the bags in their height.

Aufgabe der Erfindung ist es, eine SchließVorrichtung nach dem Oberbegriff des Patentanspruchs 1 zu schaffen, bei der die durch die ausgezogenen Sackränder gebildeten Fahnen eine genau definierte Höhenlage aufweisen.The object of the invention is to provide a locking device according to the preamble of claim 1, in which the flags formed by the extended sack edges have a precisely defined height.

Erfindugsgemäß wird diese. Aufgabe bei einer Vorrichtung der gattungsgemäßen Art durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst.According to the invention. Object achieved in a device of the generic type by the characterizing features of claim 1.

Bei der erfindungsgemäßen Vorrichtung wird die Sackfahne durch das Vorzugswalzenpaar vorgezogen, ohne daß ein Schlupf zwischen diesem und dem Sackmaterial entsteht. Da die Walzen des Vorzugswalzenpaares stets einen genau definierten Drehwinkel durchlaufen, hat die vorgezogene Fahne immer eine genau definierte Höhenlage, so daß spätere Bearbeitungsvorgänge, wie beispielsweise das Aufbringen eines Reiterbandes, ohne weitere Justierungen oder Besäumungen vorgenommen werden können.In the device according to the invention, the sack flag is pulled forward by the pair of preferred rollers without any slippage between this and the sack material. Since the rollers of the pair of preferred rollers always run through a precisely defined angle of rotation, the advanced flag always has a precisely defined height, so that later processing operations, such as the application of a rider tape, can be carried out without further adjustments or trimming.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Ansprüche 2 bis 5.Advantageous embodiments of the invention are the subject of claims 2 to 5.

Ausführungsbeispiele der Erfindung werden nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt

  • Fig. 1 eine Seitenansicht der Schließvorrichtung mit einer quer verfahrbaren Nähmaschine zum Anbringen von die Öffnungsränder der gefüllten Säcke verschließenden Nähnähten,
  • Fig 1 eine Seitenansicht einer zweiten Ausführungsform einer Schließvorrichtung in schematischer Darstellung,
  • Fig. 2 eine vergrößerte Seitenansicht der Schließvorrichtung nach Fig. 1,
  • Fig. 3 eine Draufsicht auf die Schließvorrichtung nach Fig. 2 im teilweise auseinandergezogenen Zustand und
  • Fig. 4 einen Ausschnitt der verfahrbaren Klemmeinrichtung in vergrößerter Darstellung.
Embodiments of the invention are explained below with reference to the drawing. In this shows
  • 1 is a side view of the closing device with a transversely movable sewing machine for attaching seams closing the opening edges of the filled bags,
  • 1 is a side view of a second embodiment of a locking device in a schematic representation,
  • 2 is an enlarged side view of the locking device according to FIG. 1,
  • Fig. 3 is a plan view of the locking device according to Fig. 2 in the partially exploded state and
  • Fig. 4 shows a detail of the movable clamping device in an enlarged view.

In Fig. 1 ist eine Füllstation 1 und eine um die horizontale Querachse 2 rotierende trommelförmige Zuführungseinrichtung 3 mit paarweise über den Umfang verteilten acht Greiferzangen 4 dargestellt, die in der in der DE-PS 26 29 065 beschriebenen Weise ausgestaltet sind, so daß hier auf eine nähere Beschreibung verzichtet wird.In Fig. 1, a filling station 1 and a rotating drum-shaped feed device 3 rotating about the horizontal transverse axis 2 is shown with pair of eight gripper tongs 4 distributed over the circumference, which are designed in the manner described in DE-PS 26 29 065, so that here a detailed description is omitted.

Die paarweise seitlich an der trommelförmigen Zuführungseinrichtung 3 angeordneten Greiferzangen 4 setzen den gefüllten Sack 5 auf das Aufgabeende des Bandförderers 6 ab, wobei der flachgelegte Öffnungsrand des Sackes 5 mit überstehender Fahne von den Greiferzangen 4 waagerecht gehalten ist. In dieser Stellung übernehmen die aus Walzen 7, 8 bestehenden Klemmbacken der zweiten Greifeinrichtung der Nähvorrichtung die flachgelegten Öffnungsränder und klemmen diese an den äußeren Fahnen zwischen sich fest. Anschließend wird der die Walzen 7, 8 tragende Schlitten zusammen mit dem auf dem Förderband 6 transportierten Sack 5 in die Nähposition 10 verfahren. Bei diesem Verfahren schwenken die Walzen 7, 8 gemeinsam um die Achse der unteren Walze 7, so daß in der Nähposition 10 der flachgelegte Öffnungsrand in der dargestellten Weise senkrecht steht. Gleichzeitig führt bei diesem Transport die unter Walze 7 eine Drehbewegung aus, so daß der flachgelegte Öffnungsrand durch die gleichsam ein Transportwalzenpaar bildenden Walzen 7, 8 soweit vorgezogen wird, daß der Randstreifen des Öffnungsrandes lang genug ist, um mit der Nähmaschine II eine die Öffnungsränder verschließende Naht auszuführen, wobei die Öffnungsränder umgeschlagen oder eingerollt werden können und die Nähnaht durch denumgeschlagenen oder eingerollten Bereich ausgeführt wird Das Förderband 6 ist in der dargestellten Weise mit Haltebügeln 12 versehen, die die Säcke 5 stützen und während des Transports in ihrer senkrechten Stellung halten. Der die Walzen 7, 8 lagernde Schlitten ist auf Führungsschienen synchron mit den Säcken 5 von der Absetzposition der Säcke in die Nähposition verfahrbar. Zum Verfahren des Schlittens ist eine von dem Motor 13 angetriebene Spindel 14 vorgesehen. Am Ende des Förderbandes 6 werden die durch Nähnähte geschlossenen Säcke 5 auf das nach folgende Förderband 15 abgeworfen und abtransportiert.The pair of gripper tongs 4 arranged laterally on the drum-shaped feed device 3 place the filled sack 5 on the feed end of the belt conveyor 6, the flattened opening edge of the sack 5 being held horizontally by the gripper tongs 4 with a protruding flag. In this position, the clamping jaws of the second gripping device of the sewing device, consisting of rollers 7, 8, take over the flattened opening edges and clamp them firmly on the outer flags between them. Then the carriage carrying the rollers 7, 8 is moved together with the bag 5 transported on the conveyor belt 6 into the sewing position 10. In this method, the rollers 7, 8 pivot together about the axis of the lower roller 7, so that in the sewing position 10 the flattened opening edge is vertical in the manner shown. At the same time, the transport under the roller 7 performs a rotary movement, so that the flattened opening edge is advanced by the rollers 7, 8, forming a pair of transport rollers, to the extent that the edge strip of the opening edge is long enough to use the sewing machine II to close one of the opening edges Execute seam, the opening edges can be folded over or rolled in and the sewing seam is carried out through the folded over or rolled-in area. The conveyor belt 6 is provided in the manner shown with support brackets 12 which support the bags 5 and hold them in their vertical position during transport. The slide supporting the rollers 7, 8 can be moved on guide rails in synchronism with the bags 5 from the depositing position of the bags into the sewing position. A spindle 14 driven by the motor 13 is provided for moving the carriage. At the end of the conveyor belt 6, the bags 5 closed by sewing seams are dropped onto the conveyor belt 15 following and transported away.

Der die Walzen 7, 8 lagernde Schlitten wird nachstehend anhand der Fig. 3 und 4 näher erläutert. Der Schlitten besteht aus einem durch in Dreiecksform zusammengesetzte Trager gebildeten Rahmen, der über Tragbleche 18 mit nicht dargestellten Gleitbuchsen verbunden ist, die auf zueinander parallelen Führungsstangen 19 geführt sind.The carriage supporting the rollers 7, 8 is explained in more detail below with reference to FIGS. 3 and 4. The carriage consists of a frame formed by a triangular-shaped carrier, which is connected via support plates 18 to sliding bushes, not shown, which are guided on mutually parallel guide rods 19.

Der horizontale Querträger 20 des Rahmens 17 ist endseitig gabelförmig mit Lagerplatten 21 verschraubt, die mit Lagerbohrungen versehen sind, in denen die Wellenzapfen 22 der Walze 7 drehbar gelagert sind. Auf den äußeren Enden der Wellenzapfen 22 sind die seitlichen Schenkel 23 eines bügelförmigen Rahmens 24 aufgeklemmt, so daß dieser um die Längsachse der Walze 7 verschwenkbar ist. Die seitlichen Schenkel 23 des bügelförmigen Rahmens 24 sind mit Langlöchern 25 versehen, in denen die Wellenzapfen 26 der oberen Walze 8 verschieblich geführt sind. Die Wellenzapfen 26 sind mit den Kolbenstangen 27 von pneumatischen Zylindern 28 verbunden, die ihrerseits in der dargestellten Weise in dem bügelförmigen Rahmen 24 befestigt sind. Durch die Pneumatikzylinder 28 ist die Walze 8 gegen die Walze 7 bewegbar und von dieser abhebbar. Die Walze 8 weist einen Mantel auf, der relativ zu den mit den Kolbenstangen 27 verbundenen Achszapfen 26 frei drehbar ist.The horizontal cross member 20 of the frame 17 is screwed at the end in a fork shape with bearing plates 21 which are provided with bearing bores in which the shaft journals 22 of the roller 7 are rotatably mounted. The lateral legs 23 of a bow-shaped frame 24 are clamped onto the outer ends of the shaft journals 22, so that the latter can be pivoted about the longitudinal axis of the roller 7. The side legs 23 of the bow-shaped frame 24 are provided with elongated holes 25, in which the shaft journals 26 of the upper roller 8 are slidably guided. The shaft journals 26 are connected to the piston rods 27 by pneumatic cylinders 28, which in turn are shown in FIG Are fixed in the bow-shaped frame 24. The pneumatic cylinder 28 can move the roller 8 against the roller 7 and lift it off. The roller 8 has a jacket which is freely rotatable relative to the axle journals 26 connected to the piston rods 27.

Auf den Wellenzapfen 21 der unteren Walze 7 ist der obere abgewinkelte Arm 30 eines Winkelhebels 31 angeklemmt, der mit dem Ende seines längeren Armes im Gelenk 33 mit der Koppelstange 34 gelenkig verbunden ist, die im Gelenk 35 im Maschinengestell 36 schwenkbar gelagert ist. Der kürzere Arm 30 des Winkelhebels 31 ist in Fig. 4 in Draufsicht erkennbar. Der längere nach untenweisende Arm des Winkelhebels 31 ist in Fig. 4 im Querschnitt erkennbar und durch eine volle Linie und eine gestrichelte Linie angedeutet. Das Gelenk 33 ist in Fig. 4 nur durch eine strichpunktierte Linie angedeutet.On the shaft journal 21 of the lower roller 7, the upper angled arm 30 of an angle lever 31 is clamped, which is articulated with the end of its longer arm in the joint 33 with the coupling rod 34, which is pivotably mounted in the joint 35 in the machine frame 36. The shorter arm 30 of the angle lever 31 can be seen in plan view in FIG. 4. The longer, downward-pointing arm of the angle lever 31 can be seen in cross section in FIG. 4 and is indicated by a solid line and a dashed line. The joint 33 is only indicated in FIG. 4 by a dash-dotted line.

Die Koppelstange 34 ist in der aus Fig. 4 ersichtlichen Weise am Ende eines Bolzens 38 angelenkt, der in der aus Fig. 4 ersichtlichen Weise an dem vertikalen Winkelprofil 39 des Gestells 36 befestigt ist.The coupling rod 34 is articulated in the manner shown in FIG. 4 at the end of a bolt 38 which is fastened in the manner shown in FIG. 4 to the vertical angle profile 39 of the frame 36.

Der auf den Zapfen 22 der unteren Walze 7 schwenkbar gelagerte bügelförmige Rahmen 24 ist mit die Hydraulikzylinder 28 halternden U-förmigen Haltestücken 40, 41 versehen. An dem äußeren Ende des Haltestücks 41 ist eine weitere Koppelstange 42 angelenkt, deren anderes Ende an dem Bolzen 44 angelenkt ist, der ebenfalls an dem vertikalen profil 39 des Gestells 36 befestigt ist.The bow-shaped frame 24 pivotably mounted on the pin 22 of the lower roller 7 is provided with U-shaped holding pieces 40, 41 which hold the hydraulic cylinders 28. At the outer end of the holding piece 41, a further coupling rod 42 is articulated, the other end of which is articulated on the bolt 44, which is also fastened to the vertical profile 39 of the frame 36.

Die Längen der Koppelstangen 34,42 und deren Anlenkpunkte an dem vertikalen Profil 39 des Gestells 36 sowie der Anlenkpunkt der Koppelstange 42 an dem Haltestück 41 des Rahmens 24 und die Längen der Arme des Winkelhebels 31 sind derart gewählt, daß bei einem Verfahren des Schlittens 16 aus der aus den Fig. 1 und 2 ersichtlichen rechten Aufnahmestellung in die aus Fig. 1 ersichtliche Nähposition 10 der bügelförmige Rahmen 24 aus seiner vertikalen Stellung in eine horizontale Stellung verschwenkt wird und die Walze 7 die nur an den äußeren Fahnen erfaßten Öffnungsränder um die gewünschte Länge vorzieht. Die Koppelstange 42 bildet mit dem Rahmen 24 und die Koppelstange 34 mit dem Winkelhebel 31 jeweils ein Koppelstangen-Hebel-Getriebe, durch das einmal der Rahmen 24 zwischen seiner vertikalen Position und seiner waagerechen Stellung verschwenkt wird und zum anderen der unteren Walze 7 die erforderliche Drehung zum Vorzug des flachgelegten Öffnungsrandes erteilt wird. Der erforderliche Antrieb ist jeweils von dem Schlitten 16 abgeleitet.The lengths of the coupling rods 34, 42 and their articulation points on the vertical profile 39 of the frame 36 as well as the articulation point of the coupling rod 42 on the holding piece 41 of the frame 24 and the lengths of the arms of the angle lever 31 are chosen such that in a method of the carriage 16 1 and 2 into the sewing position 10 shown in FIG. 1, the bow-shaped frame 24 is pivoted from its vertical position into a horizontal position and the roller 7 moves the opening edges detected only on the outer flags by the desired Prefers length. The coupling rod 42 forms with the frame 24 and the coupling rod 34 with the angle lever 31 each a coupling rod lever gear, through which the frame 24 is pivoted between its vertical position and its horizontal position and on the other hand the lower roller 7 the required rotation to give preference to the flattened opening edge. The required drive is derived from the carriage 16.

Der Schlitten 16 ist, wie bereits gesagt, über nicht dargestellte Buchsen auf den Führungsstangen 19 verschieblich, die parallel zu dem Förderband 6 verlaufen. Die Führungsstangen 19 sind an endseitigen Halteplatten 50, 51 befestigt, die parallel zu den Führungsstangen durch die Trägerprofile 52, 53 miteinander verbunden sind. Die Trägerprofile 52, 53 und gegebenenfalls auch auch die Halteplatte 51 sind mit dem vertikalen Profil 39 des Rahmens 36 verbunden. Der Schlitten 16 ist mit einer Spindelmutter 55 fest verbunden, in die die Spindel 14 eingeschaubt ist. Die Spindel 14 ist in der Halteplatte 50 drehbar gelagert. An die Halteplatte 50 ist zusätzlich der Motor 56 angeflanscht, der die Spindel 14 antreibt. Der Motor 56 ist dabei derart gesteuert, daß er den Schlitten 16 synchron mit dem Förderband 6 von der Aufnahmestation in die Nähstation verfährt.As already mentioned, the carriage 16 is displaceable on the guide rods 19 via bushings, not shown, which run parallel to the conveyor belt 6. The guide rods 19 are fastened to end holding plates 50, 51 which are connected to one another parallel to the guide rods by the carrier profiles 52, 53. The carrier profiles 52, 53 and possibly also the holding plate 51 are connected to the vertical profile 39 of the frame 36. The carriage 16 is firmly connected to a spindle nut 55 into which the spindle 14 is inserted. The spindle 14 is rotatably mounted in the holding plate 50. The motor 56, which drives the spindle 14, is additionally flanged to the holding plate 50. The motor 56 is controlled in such a way that it moves the carriage 16 synchronously with the conveyor belt 6 from the receiving station into the sewing station.

An den vertikalen Profilen 39 ist in der aus Fig. 3 ersichtlichen Weise ein Querträger 60 befestigt, der über Haltestücke 61 die Profile 62, 63 trägt. Die Profile 62, 63 sind endseitig schenkelartig mit Tragblechen 65, 66 verbunden, zwischen denen im Abstand und parallel zueinander Führungsstangen 67, 68 befestigt sind. Auf diesen Führungsstangen 67, 68 ist ein die Nähmaschine 11 tragender Schlitten 70 verfahrbar, der über nicht dargestellte Buchsen auf den Führungsstangen 67, 68 geführt ist. Der Schlitten ist mit einer Spindelmutter versehen, in die die aus Fig. 2 ersichtliche Spindel 72 eingeschraubt ist. Die Spindel wird von dem an das Halteblech 66 angeflanschten Motor 73 angetrieben. Durch den Spindeltrieb ist somit die auf dem Schlitten befestigte Nähmaschine 11 in Querrichtung zu dempörderband 6 verfahrbar, um an die in der Nähposition durch die Walzen 7, 8 fixierten Öffnungsränder die Nähnaht anzubringen.A cross member 60 is fastened to the vertical profiles 39 in the manner shown in FIG. 3 and carries the profiles 62, 63 via holding pieces 61. The profiles 62, 63 are connected at the end in a leg-like manner to support plates 65, 66, between which guide rods 67, 68 are fastened at a distance and parallel to one another. A carriage 70 carrying the sewing machine 11 can be moved on these guide rods 67, 68 and is guided on the guide rods 67, 68 via bushings (not shown). The carriage is provided with a spindle nut into which the spindle 72 shown in FIG. 2 is screwed. The spindle is driven by the motor 73 flanged to the holding plate 66. The sewing machine 11 fastened on the carriage can thus be moved in the transverse direction to the conveyor belt 6 by the spindle drive in order to attach the sewing seam to the opening edges fixed in the sewing position by the rollers 7, 8.

In Fig. 3 ist das Gestell 36, 39 in auseinandergezogener Stellung dargestellt, wie durch die zweifach gezeigten vertikalen Profile 39 verdeutlicht ist.In Fig. 3, the frame 36, 39 is shown in an extended position, as is illustrated by the vertical profiles 39 shown twice.

In Fig. 2 ist der Sack 5 unmittelbar nach dem Aufsetzen auf das Förderband 6 dargestellt. Die Walzen 7, 8 befinden sich noch im Abstand von der die zangenartigen Greiforgane 4 über ragenden Fahne 75.2, the sack 5 is shown immediately after being placed on the conveyor belt 6. The rollers 7, 8 are still at a distance from the pliers-like gripping members 4 projecting from the flag 75.

Bei dem Ausführungsbeispiel nach Fig. 1a wird der Sack nach dem Befüllen durch die Füllvorrichtung 80 durch nicht dargestellte Greif- oder Halteeinrichtungen auf das Förderband 6 abgesetzt. Die ein Vorzugswalzenpaar bildenden Walzen 7, 8 werden durch eine nicht dargestellte Einrichtung zusammengefahren, so daß sie die senkrecht stehenden und aufeinanderliegenden Öffnungsränder des gefüllten Sackes zwischen sich festklemmen. Auf dem Wege zu der Nähmaschine 11 ziehen die Walzen 7, 8 die aufeinanderliegenden Öffnungsränder so weit vor, daß diese selbst nach einmaligem oder mehrmaligem Umlegen durch eine Nähnaht verschlossen werden können.In the exemplary embodiment according to FIG. 1 a, the bag is placed on the conveyor belt 6 after it has been filled by the filling device 80 by means of gripping or holding devices (not shown). The rollers 7, 8 forming a pair of preferred rollers are moved together by a device, not shown, so that they clamp the vertical and superimposed opening edges of the filled bag between them. On the way to the sewing machine 11, the rollers 7, 8 advance the opening edges lying one on top of the other so far that they can be closed by a sewing seam even after being folded once or several times.

Auch bei dem Ausführungsbeispiel nach Fig. 1a sind die Walzen 7, 8 in einem in einer Führung laufenden Schlitten angeordnet, der synchron zu dem Förderband 6 angetrieben ist.In the exemplary embodiment according to FIG. 1 a, the rollers 7, 8 are arranged in a carriage running in a guide, which is driven synchronously with the conveyor belt 6.

Claims (5)

1. An apparatus for closing filled bags delivered by a conveyor (6) from a filling station (1) to a closing station (10), with a machine stand (36, 39), with a gripping device gripping the opening edges of the filled bags (5) between themselves in the manner of pliers, with a pair of rollers (7, 8) rotatable round axes perpendicular to the main axis of the bag (5), which rollers form a feeding roller pair and at least one whereof can be driven, and with a closing device surmounting the gripping device closing the opening edges flatly applied to each other by means of a seam, characterized in that the rollers (7, 8) are arranged in a vertical plane on top of one another for taking up the strip (75) formed by the opening edges flatly applied to each other in a horizontal plane, in that provision, is made for a carriage for displacing the rollers to the closing station, in that the roller (7) which is the lower in the take-up position is rotatably mounted in the carriage (16) and in that the upper roller (8) is mounted for free rotation in a frame (24) which can be pivoted round the axis (22) of the lower roller (7), in that a lever (30, 31) is attached to the shaft (22) of the lower roller (7), which lever is connected to the stand (36, 39) via a connecting rod (34) in such a way that the roller periphery fixedly joined to the shaft (22) draws the strip (75) of the opening edges gripped between the rollers (7, 8) forward during the conveyance to the welding or sewing station (10), in that the upper roller (8) mounted in slotted guide ways (25) of the arms of the frame (24) can be lifted and pressed against the lower roller (7) by means of a hydraulic piston cylinder unit, and in that the frame (24) is connected to the stand (36,39) by means of the connecting rod (42) in such a way that on being conveyed with the carriage (16) into the welding or sewing station (10), it is pivoted into a horizontal position, so that in this position the rollers (7, 8) are arranged next to each other in a horizontal plane.
2. An apparatus according to Claim 1, characterized in that the periphery of at least one roller (7, 8) is designed to be elastic.
3. An apparatus according to Claim 1 or 2, characterized in that at least one of the rollers (7, 8) has over its length, zones of varying diameters corresponding to the cross-section of the strip to be drawn forward.
4. An apparatus according to Claim 1 or 2, characterized in that at least one of the two rollers (7, 8) consists of part rollers mounted coaxially at a distance from each other, which only act laterally on the laid flat opening edges.
5. An apparatus according to one of Claims 1 to 4, characterized in that at least one of the rollers (7,8) is provided with a free wheel preventing any reverse roller rotation.
EP86115492A 1985-12-13 1986-11-07 Apparatus for closing filled bags Expired - Lifetime EP0228541B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3544156 1985-12-13
DE3544156 1985-12-13
DE19863615178 DE3615178A1 (en) 1985-12-13 1986-05-05 DEVICE FOR CLOSING FILLED BAGS
DE3615178 1986-05-05

Publications (2)

Publication Number Publication Date
EP0228541A1 EP0228541A1 (en) 1987-07-15
EP0228541B1 true EP0228541B1 (en) 1990-05-16

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ID=25838811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115492A Expired - Lifetime EP0228541B1 (en) 1985-12-13 1986-11-07 Apparatus for closing filled bags

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US (1) US4756142A (en)
EP (1) EP0228541B1 (en)
JP (1) JP2557863B2 (en)
BR (1) BR8606150A (en)
CA (1) CA1271173A (en)
DE (1) DE3615178A1 (en)

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DE19749025A1 (en) * 1997-11-06 1999-05-27 Icoma Fbs Gmbh Packtechnik Process for filling and closing bags
EP1191385B1 (en) * 2000-09-25 2006-03-29 Siemens Aktiengesellschaft Liquid-crystal display
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US20150151863A1 (en) * 2013-09-09 2015-06-04 Sandbags, LLC Material handling machine
CN104150257A (en) * 2013-10-23 2014-11-19 厦门市保源塑料制品有限公司 Full-automatic winding machine
CN106742110A (en) * 2015-11-24 2017-05-31 衡阳市维达胜电气自动化设备有限公司 A kind of cereal automatic ration baling press
CN105346777B (en) * 2015-11-30 2018-05-08 内黄县昌兴生物机械设备有限公司 Numerical-control full-automatic bacterium bag strapper
CN105947243A (en) * 2016-06-24 2016-09-21 天津市大环生物肥料有限公司 Bagging and packaging equipment for organic fertilizer
CN206590173U (en) * 2017-02-13 2017-10-27 天津同祺科技有限公司 A kind of device that woven bag is fed to sack closer
CN114313466A (en) * 2021-12-31 2022-04-12 合肥赛摩雄鹰自动化工程科技有限公司 Bag sewing or heat sealing function integrated full-automatic packaging machine

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Also Published As

Publication number Publication date
JP2557863B2 (en) 1996-11-27
DE3615178C2 (en) 1987-11-26
BR8606150A (en) 1987-09-22
US4756142A (en) 1988-07-12
DE3615178A1 (en) 1987-06-25
CA1271173A (en) 1990-07-03
JPS62146124A (en) 1987-06-30
EP0228541A1 (en) 1987-07-15

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