EP0344363A1 - Device for orienting and opening flat-lying plastic bags - Google Patents

Device for orienting and opening flat-lying plastic bags Download PDF

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Publication number
EP0344363A1
EP0344363A1 EP88119739A EP88119739A EP0344363A1 EP 0344363 A1 EP0344363 A1 EP 0344363A1 EP 88119739 A EP88119739 A EP 88119739A EP 88119739 A EP88119739 A EP 88119739A EP 0344363 A1 EP0344363 A1 EP 0344363A1
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EP
European Patent Office
Prior art keywords
sack
endless conveyor
bag
strips
pressure rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88119739A
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German (de)
French (fr)
Other versions
EP0344363B1 (en
Inventor
Frank-Otto Dipl.-Ing. Görlitz
Hans Joachim Droste
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.)
LIBRAWERK MASCHINENFABRIK GMBH
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Librawerk Maschinenfabrik GmbH
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Publication date
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Priority to AT88119739T priority Critical patent/ATE101569T1/en
Publication of EP0344363A1 publication Critical patent/EP0344363A1/en
Application granted granted Critical
Publication of EP0344363B1 publication Critical patent/EP0344363B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B65H9/103—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop
    • B65H9/106—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop using rotary driven elements as part acting on the article
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B65H9/101—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting on the edge of the article

Definitions

  • the invention relates to a device for aligning and opening flat-lying plastic sacks, in which each sack is placed on a storage table and transferred to a predetermined position on the table, and in the aligned position is transferred into the open position by means of suction heads engaging on the opening-side ends of the sack walls.
  • the sack is aligned in only one direction, so that additional previous or subsequent measures are necessary in order to also convert it into a predetermined position with respect to the other direction. (DE-PS 24 52 049).
  • the invention has for its object to provide a device of the type mentioned in such a way that with a simple structure sacks of different dimensions are positioned on the storage table in both directions and a sorting out of the sacks is made possible, the opening-side end of which cannot be transferred to the open position.
  • the device mentioned in the introduction is characterized by the features mentioned in the characterizing part of claim 1.
  • the alignment of the sacks transferred or deposited on the storage table takes place in two stages, namely first by the centering fingers in one direction and subsequently by the drivable endless conveyor in connection with the pressure rollers in the other direction, with a lateral displacement transversely by the centering fingers the direction of conveyance is definitely avoided.
  • the sensors cooperating with the pressure rollers and the drive of the endless conveyor are provided, which limit the conveyance of the respective sack very precisely, especially since the endless conveyor including the drive device can be carried out very easily and practically no noticeable follow-up times occur when the conveyor is switched off.
  • the sack can be removed from the table in one direction into the centering position and also in the other direction with the aid of the conveyor and the pressure rollers if the sack cannot be opened, and this by detecting it more appropriately Criteria can be determined by means of the sensors.
  • the strips which run parallel to one another at a distance, are movable back and forth relative to one another, they can be set to different target distances in order to take into account different sack sizes.
  • the endless conveyor can be designed as a relatively narrow belt conveyor, preferably as a narrow toothed belt conveyor, since it does not have to move large masses and, thanks to the interaction with the pressure rollers, despite the narrow design, ensures that even relatively wide sacks can be placed safely along the table level while maintaining them plane-level location.
  • each strip is connected to a piston-cylinder arrangement, which in turn is held on a carrier so as to be displaceable transversely to the longitudinal direction of the strip.
  • the piston-cylinder arrangement In one end position of the piston-cylinder arrangement and the resulting greatest distance between the centering fingers, the respective sack is placed on the table and the piston-cylinder arrangement is transferred to the other end position, which corresponds to the centering position for the sack.
  • the stroke of the piston-cylinder arrangements is relatively narrow in order to achieve centering by means of short movements of the centering fingers.
  • a particularly safe and simple guiding of the carriages results if each carriage is connected to a threaded sleeve guided on one spindle and is slidably guided on the other spindle.
  • the pressure rollers cooperating with the endless conveyor which in their operative position press the bag against the upper run of the endless conveyor, are expediently provided with lifting drives in the form of piston-cylinder arrangements, these piston-cylinder arrangements being held in a frame projecting from the table.
  • the pressure rollers can be attached as single rollers or as seen in the conveying direction in pairs to a carrier provided for this purpose.
  • a sensor provided in the table top is arranged as a positioning sensor outside the placement position of the sack in the direction of further conveyance of the sack when it is removed from the table. Via this sensor, the respective feed of the sack can be stopped very precisely by means of the endless conveyor in cooperation with at least one pressure roller, so that all sacks assume the same position on the table when the alignment process is finished and are opened in this position and in ge opened state of the gripper for further conveyance, for example to a bag clamp, can be detected.
  • the sack In the aligned position, the sack should cover the positioning sensor so that the sensor can also be used as an indicator of the opening process when the sack is opened later.
  • a further sensor is arranged so far from the positioning sensor in the area in which the sack is placed, but against the direction in which the sack is conveyed, that it lies on the table in its end position outside the sack.
  • the drive of the endless conveyor and the transfer of a pressure roller into the operative position can be controlled by means of this sensor, ensuring that the endless conveyor is only put into operation when there is a sack on the table that also covers the other sensor.
  • the suction heads engaging the bag walls are arranged in the region of the positioning sensor, at least one of which is connected to a lifting device.
  • the positioning sensor can also serve as an indicator for monitoring the correct opening of the bag in a particularly simple manner.
  • a sack cannot be opened by the suction heads, it can be ensured by adjusting the suction heads that this sack is lifted off the positioning sensor and, with a corresponding timing of this sensor, by the sensor timely release of the sack, the lack of opening of the sack is recognizable and the subsequent actuation of the gripper is prevented by appropriate circuit arrangements and, if necessary, after multiple attempts to open it by means of the endless conveyor and the pressure rollers, this sack, which cannot be opened, is transported away from the storage table counter to its operational further direction of conveyance or is ejected.
  • the drawing shows an embodiment of the invention in a schematic representation.
  • a storage table 2 for the sacks to be aligned is provided at the lower end of a frame designated as a whole, which is held on the frame 1.
  • Centering fingers 5 protrude from the strips 3 and 4, which protrude through slots 6 through the storage table 2 and are angled at their upper ends.
  • each of the strips is connected to a piston cylinder arrangement 7 or 8, which in turn is fastened on a carriage 9 or 10.
  • Each of the carriages 9 and 10 is guided in the form of spindles 11 and 12 on two supports running transversely to the strips 3 and 4, or the one section of each carriage 9 and 10 is slidably held on one of the spindles 11 and 12, while its other end is connected to a threaded sleeve of the other spindle or forms the threaded sleeve of the other spindle.
  • a mutual displacement of the carriages 9 and 10 can take place, so that the strips 3 and 4 can be adjusted to different distances.
  • the strips 3 and 4 with the upstanding centering fingers 5 are used to align the sacks placed on the storage table 2 between the strips in the spread position, so that they are brought into a position in which two of their edges are aligned with the strips 3 and 4.
  • the upper run 15a of the endless conveyor 15 runs closely above the level of the storage table 2.
  • pressure rollers 17, 18 and 19 with piston cylinder arrangements 20 and 21 associated therewith are held in a cross member 1a of the frame 1.
  • the pressure roller 17 is arranged in the region of one end of the upper run 15a of the endless conveyor 15, while the other pressure rollers 18 and 19 are aligned on a common support plate 22 in the direction of the endless conveyor and are arranged above the other end of the endless conveyor 15.
  • the pressure rollers 17 or 18 and 19 can move in the direction of the double arrows 23 and can be pressed into a pressure position against the upper run 15a of the endless conveyor.
  • Sensors 24 and 25 are also arranged in the table top of the storage table 2.
  • the sensor 24 is arranged as a positioning sensor outside the placement position of the sack in the direction of its further conveyance when it is removed from the storage table 2.
  • the other sensor 25 is arranged in the area of the support position of the sack so far away from the positioning sensor 24 against the direction in which the sack is conveyed that it lies outside the sack in its end position on the storage table 2.
  • Each sack is fed in such a way that the sack is placed on the storage table 2 in such a way that it comes to rest between the opposing centering fingers 5 and under the pressure rollers 17 and 18.
  • the sack is now first centered by means of the centering fingers 5, in that the strips 3 and 4 are moved relative to one another up to their end positions via the associated piston-cylinder arrangements 7 and 8.
  • the centering fingers 5 rest on the lateral longitudinal edges of the sack with corresponding prior adjustment of the strips 3 and 4.
  • a sack S is shown in dashed lines in this position.
  • the sack is now aligned in the other direction with the aid of the endless conveyor 15 and the pressure roller 17.
  • the endless conveyor is actuated only when the sensor 25 is covered by a sack.
  • the drive 16 of the endless conveyor 15 is switched on, the bag is conveyed in the direction of the positioning sensor 24 by pressing the pressure roller 17.
  • the drive 16 of the endless conveyor is switched off via the sensor and a control device and the pressure roller 17 is raised by the piston-cylinder arrangement 20.
  • suction heads 26 and 27 are arranged in the frame, of which the suction head 27 is held by a piston-cylinder arrangement 28 can be raised and lowered.
  • the suction heads 26 and 27 engage the sack in the region of the edge which also interacts with the positioning sensor 24.
  • the sack After the sack has been opened by the suction heads 26 and 27, the sack is gripped and conveyed further in the open state, not shown, in the open state and conveyed further, for example, onto a sack clamp.
  • a sack cannot be opened, appropriate adjustment of the suction force can ensure, for example, that the sack is taken up by the suction head 27, which can be raised and lowered, and as a result the positioning sensor 24 is no longer covered by the sack that depending on this state with appropriate timing for the effectiveness of the positioning sensor 24, the suction on the sack is interrupted and at the same time the endless conveyor 15 is driven by the drive 16 in the opposite direction and the pressure rollers 18 and 19 move by means of the piston-cylinder arrangement 21 into the pressure position downwards are and thus the sack is pulled against its normal direction of conveyance and is ejected from the storage table 2 in the direction of arrow 28 from the device.
  • the control for ejecting a sack that cannot be opened can also take place in a different way, for example via the suction heads 26 and 27.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)
  • Making Paper Articles (AREA)
  • Auxiliary Apparatuses For Manual Packaging Operations (AREA)

Abstract

The device for orienting and opening flat-lying plastic bags (S) has a delivery table (2) at which, to align the bag, two bars (3, 4) extending in parallel at a distance are held so as to be capable of being moved to and fro with respect to each other by means of a drive (16) in one direction beneath the table and are equipped with centring fingers (5) projecting upwards through slots in the table. To align the bag in the other direction, there is provided between the bars (3, 4) an endless conveyor which extends parallel to the bars and can be reversibly driven and whose upper strand (15a) extends in a recess in the table just above the plane of the table. Assigned to said conveyor are pressure rollers (17 or 18, 19) which can be lowered onto the end regions of the upper strand 15a of the conveyor. Furthermore, sensors (24, 25) which can be activated in each case by the deposited bag, are arranged in the table plate so as to control the lifting movement of the pressure rollers and the endless conveyor. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Ausrichten und Öffnen flachliegender Kunststoffsäcke, bei der jeder Sack auf einen Ablagetisch abgelegt und in eine vorbe­stimmte Lage auf den Tisch überführt sowie in der ausge­richteten Position mittels an den öffnungsseitigen Enden der Sackwandungen angreifender Saugköpfe in die Offen­stellung überführt wird.The invention relates to a device for aligning and opening flat-lying plastic sacks, in which each sack is placed on a storage table and transferred to a predetermined position on the table, and in the aligned position is transferred into the open position by means of suction heads engaging on the opening-side ends of the sack walls.

Es sind Vorrichtungen der genannten Art bekannt, bei denen der Sack auf einen Ablagetisch überführt wird und unter der Einwirkung eines unter dem Sack erzeugten Luftpolsters bis gegen einen Anschlag am Ende des Tisches befördert wird.Devices of the type mentioned are known in which the sack is transferred to a storage table and, under the action of an air cushion generated under the sack, is conveyed to a stop at the end of the table.

Bei dieser bekannten Anordnung erfolgt eine Ausrichtung des Sackes nur in einer Richtung, so daß zusätzliche vorherige oder nachträgliche Maßnahmen notwendig sind, um ihn auch in bezug auf die andere Richtung in eine vorbestimmte Position zu überführen. (DE-PS 24 52 049).In this known arrangement, the sack is aligned in only one direction, so that additional previous or subsequent measures are necessary in order to also convert it into a predetermined position with respect to the other direction. (DE-PS 24 52 049).

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrich­tung der eingangs genannten Art so auszubilden, daß bei einem einfachen Aufbau Säcke unterschiedlicher Ab­messungen auf dem Ablagetisch in beiden Richtungen posi­tioniert und eine Aussortierung der Säcke ermöglicht wird, deren öffnungsseitiges Ende sich nicht in die Offenstellung überführen läßt.The invention has for its object to provide a device of the type mentioned in such a way that with a simple structure sacks of different dimensions are positioned on the storage table in both directions and a sorting out of the sacks is made possible, the opening-side end of which cannot be transferred to the open position.

Zur Lösung vorstehender Aufgabe kennzeichnet sich die einleitend genannte Vorrichtung durch die im Kennzeichen des Anspruches 1 genannten Merkmale.To solve the above problem, the device mentioned in the introduction is characterized by the features mentioned in the characterizing part of claim 1.

Die Ausrichtung der auf den Ablagetisch überführten bzw. abgelegten Säcke erfolgt in zwei Stufen, nämlich zunächst durch die Zentrierfinger in der einen Richtung und nachfolgend durch den antreibbaren Endlosförderer in Verbindung mit den Andruckrollen in der anderen Rich­tung, wobei durch die Zentrierfinger eine seitliche Verschiebung quer zu der Förderrichtung mit Sicherheit vermieden wird.The alignment of the sacks transferred or deposited on the storage table takes place in two stages, namely first by the centering fingers in one direction and subsequently by the drivable endless conveyor in connection with the pressure rollers in the other direction, with a lateral displacement transversely by the centering fingers the direction of conveyance is definitely avoided.

Anstelle der sonst üblichen Anschlagkanten sind die mit den Andruckrollen und dem Antrieb des Endlosför­derers zusammenwirkenden Sensoren vorgesehen, welche die Förderung des jeweiligen Sackes sehr präzise begren­zen, zumal der Endlosförderer einschließlich der An­triebseinrichtung sehr leicht ausgeführt werden kann und beim Abschalten praktisch keine merkbaren Nachlauf­zeiten auftreten.Instead of the otherwise usual stop edges, the sensors cooperating with the pressure rollers and the drive of the endless conveyor are provided, which limit the conveyance of the respective sack very precisely, especially since the endless conveyor including the drive device can be carried out very easily and practically no noticeable follow-up times occur when the conveyor is switched off.

Dadurch, daß der Endlosförderer reversibel antreibbar ist, kann mit Hilfe des Förderers und der Andruckrollen der Sack in der einen Richtung in die Zentrierposition und auch in der anderen Richtung von dem Tisch abgefördert werden, wenn der Sack sich nicht öffnen läßt und dies durch Erfassung geeigneter Kriterien mittels der Sen­soren feststellbar ist.Because the endless conveyor is reversibly drivable, the sack can be removed from the table in one direction into the centering position and also in the other direction with the aid of the conveyor and the pressure rollers if the sack cannot be opened, and this by detecting it more appropriately Criteria can be determined by means of the sensors.

Durch die Aussortierung derjenigen Säcke, die sich nicht öffnen lassen, werden nachfolgende Fehlschaltungen bzw. Fehlbetätigungen vermieden, die insbesondere bei auto­matischen Absackanlagen zu sehr großen Problemen führen.By sorting out those bags that cannot be opened, subsequent incorrect switching or incorrect actuation are avoided, which lead to very large problems, particularly in automatic bagging systems.

Dadurch, daß die im Abstand parallel verlaufenden Leisten gegeneinander hin und her bewegbar gehalten sind, können diese auf unterschiedliche Sollabstände eingestellt werden, um unterschiedlichen Sackgrößen Rechnung zu tragen.Because the strips, which run parallel to one another at a distance, are movable back and forth relative to one another, they can be set to different target distances in order to take into account different sack sizes.

Der Endlosförderer kann als relativ schmaler Bandförderer, vorzugsweise als schmaler Zahnriemenförderer, ausgeführt sein, da er keine großen Massen zu bewegen hat und durch das Zusammenwirken mit den Andruckrollen trotz der schma­len Ausbildung gewährleistet, daß auch relativ breite Säcke mit Sicherheit längs der Tischebene unter Auf­rechterhaltung ihrer planebenen Lage befördert werden.The endless conveyor can be designed as a relatively narrow belt conveyor, preferably as a narrow toothed belt conveyor, since it does not have to move large masses and, thanks to the interaction with the pressure rollers, despite the narrow design, ensures that even relatively wide sacks can be placed safely along the table level while maintaining them plane-level location.

Um die Leisten mit den aufragenden Zentrierfingern gegen­einander und voneinander weg zu bewegen, müssen diese mit entsprechenden Antriebseinrichtungen ausgerüstet sein. Zweckmäßig ist es, wenn jede Leiste mit einer Kolbenzylinderanordnung verbunden ist, die ihrerseits jeweils quer zur Längsrichtung der Leiste verschiebbar an einem Träger gehalten ist. In der einen Endstellung der Kolbenzylinderanordnung und dem dadurch gegebenen größten Abstand der Zentrierfinger wird der jeweilige Sack auf den Tisch abgelegt und die Kolbenzylinderan­ordnung in die andere Endstellung überführt, welche der Zentrierstellung für den Sack entspricht.In order to move the strips with the upstanding centering fingers against and away from each other, they must be equipped with appropriate drive devices. It is expedient if each strip is connected to a piston-cylinder arrangement, which in turn is held on a carrier so as to be displaceable transversely to the longitudinal direction of the strip. In one end position of the piston-cylinder arrangement and the resulting greatest distance between the centering fingers, the respective sack is placed on the table and the piston-cylinder arrangement is transferred to the other end position, which corresponds to the centering position for the sack.

Der Hub der Kolbenzylinderanordnungen ist dabei verhält­nismäßig eng begrenzt, um durch kurze Bewegungen der Zentrierfinger die Zentrierung zu erreichen.The stroke of the piston-cylinder arrangements is relatively narrow in order to achieve centering by means of short movements of the centering fingers.

Um die Vorrichtung auf unterschiedliche Sackabmessungen einzustellen, ist es zweckmäßig, wenn unterhalb der Leisten zwei parallele zu den Leisten verlaufende Träger in Form von Spindeln vorgesehen sind, auf denen gegen­sinnig verfahrbare Schlitten gehalten und geführt sind, welche jeweils eine Kolbenzylinderanordnung tragen. Mit Hilfe der als Spindeln ausgebildeten Träger kann der Abstand der mit den Kolbenzylinderanordnungen ver­bundenen Leisten den unterschiedlichen Abmessungen der auszurichtenden Säcke angepaßt werden.In order to adjust the device to different bag dimensions, it is expedient if two supports running parallel to the strips in the form of spindles are provided below the strips, on which carriages which are movable in opposite directions are held and guided, each carrying a piston-cylinder arrangement. With the aid of the supports designed as spindles, the spacing of the strips connected to the piston-cylinder arrangements can be adapted to the different dimensions of the bags to be aligned.

Eine besonders sichere und einfache Führung der Schlit­ten ergibt sich, wenn jeder Schlitten mit einer auf der einen Spindel geführten Gewindehülse verbunden und auf der anderen Spindel gleitend geführt ist.A particularly safe and simple guiding of the carriages results if each carriage is connected to a threaded sleeve guided on one spindle and is slidably guided on the other spindle.

Die mit dem Endlosförderer zusammenwirkenden Andruck­rollen, welche in ihrer Wirkstellung den Sack gegen das obere Trum des Endlosförderers drücken, sind zweck­mäßigerweise mit Hubantrieben in Form von Kolbenzylin­deranordnungen versehen, wobei diese Kolbenzylinder­anordnungen in einem vom Tisch aufragenden Gestell gehal­ten sind. Die Andruckrollen können dabei als Einfachrollen oder aber auch in Förderrichtung gesehen paarweise an einem hierfür vorgesehenen Träger befestigt sein.The pressure rollers cooperating with the endless conveyor, which in their operative position press the bag against the upper run of the endless conveyor, are expediently provided with lifting drives in the form of piston-cylinder arrangements, these piston-cylinder arrangements being held in a frame projecting from the table. The pressure rollers can be attached as single rollers or as seen in the conveying direction in pairs to a carrier provided for this purpose.

Zweckmäßig ist es, wenn ein in der Tischplatte vorge­sehener Sensor als Positionierungssensor außerhalb der Auflegeposition des Sackes in Richtung der Weiterförderung des Sackes bei seiner Abnahme von dem Tisch angeordnet ist. Über diesen Sensor kann der jeweilige Vorschub des Sackes mittels des Endlosförderers im Zusammenwir­ken mit wenigstens einer Andruckrolle sehr präzise ge­stoppt werden, so daß alle Säcke bei Beendigung des Ausrichtvorganges die gleiche Position auf dem Tisch einnehmen und in dieser Position geöffnet sowie im ge­ öffneten Zustand von dem Greifer zur Weiterförderung, beispielsweise an eine Sackklemme, erfaßt werden können.It is expedient if a sensor provided in the table top is arranged as a positioning sensor outside the placement position of the sack in the direction of further conveyance of the sack when it is removed from the table. Via this sensor, the respective feed of the sack can be stopped very precisely by means of the endless conveyor in cooperation with at least one pressure roller, so that all sacks assume the same position on the table when the alignment process is finished and are opened in this position and in ge opened state of the gripper for further conveyance, for example to a bag clamp, can be detected.

In der ausgerichteten Position sollte der Sack den Posi­tionierungssensor überdecken, so daß der Sensor auch bei der späteren Öffnung des Sackes als Indikator für den vollzogenen Öffnaungsvorgang benutzt werden kann.In the aligned position, the sack should cover the positioning sensor so that the sensor can also be used as an indicator of the opening process when the sack is opened later.

Besonders vorteilhaft ist es, wenn ein weiterer Sensor im Bereich der Auflegeposition des Sackes, jedoch gegen die Weiterförderrichtung des Sackes so weit von dem Positionierungssensor entfernt angeordnet ist, daß er außerhalb des Sackes in seiner Endposition auf dem Tisch liegt.It is particularly advantageous if a further sensor is arranged so far from the positioning sensor in the area in which the sack is placed, but against the direction in which the sack is conveyed, that it lies on the table in its end position outside the sack.

Auf diese Weise kann durch den weiteren Sensor nach erfolgter Zentrierung des Sackes durch die Zentrierfinger der Antrieb des Endlosförderers und die Überführung einer Druckrolle in die Wirkposition mittels dieses Sensors gesteuert werden, wobei sichergestellt wird, daß der Endlosförderer nur dann in Betrieb gesetzt wird, wenn auch ein Sack auf dem Ablagetisch liegt, der auch den weiteren Sensor abdeckt.In this way, after the centering of the sack by the centering fingers, the drive of the endless conveyor and the transfer of a pressure roller into the operative position can be controlled by means of this sensor, ensuring that the endless conveyor is only put into operation when there is a sack on the table that also covers the other sensor.

Besonders zweckmäßig ist es, wenn im Bereich des Po­sitionierungssensors die an den Sackwandungen angrei­fenden Saugköpfe angeordnet sind, von denen wenigstens einer mit einer Hubeinrichtung verbunden ist. Bei dieser Anordnung kann in besonders einfacher Weise der Positio­nierungssensor zugleich als Indikator für die Überwa­chung eines ordnungsgemäßen Öffnens des Sackes dienen. Wenn nämlich ein sack sich nicht durch die Saugköpfe öffnen läßt, kann durch Einstellung der Saugköpfe da­für gesorgt werden, daß dieser Sack von dem Positio­nierungssensor abgehoben wird und bei einer entspre­chenden Zeitsteuerung dieses Sensors durch dessen vor­ zeitige Freigabe von dem Sack die unterbliebene Öffnung des Sackes erkennbar wird und durch entsprechende Schal­tungsanordnungen die nachfolgende Betätigung des Greifers unterbunden sowie über eine Steuerungseinrichtung ggf. nach mehrfachem Öffnungsversuch mittels des Endlosför­derers und der Andruckrollen dieser nicht zu öffnende Sack entgegen seiner betriebsmäßigen Weiterförderrichtung von dem Ablagetisch abtransportiert bzw. ausgeworfen wird.It is particularly expedient if the suction heads engaging the bag walls are arranged in the region of the positioning sensor, at least one of which is connected to a lifting device. With this arrangement, the positioning sensor can also serve as an indicator for monitoring the correct opening of the bag in a particularly simple manner. If a sack cannot be opened by the suction heads, it can be ensured by adjusting the suction heads that this sack is lifted off the positioning sensor and, with a corresponding timing of this sensor, by the sensor timely release of the sack, the lack of opening of the sack is recognizable and the subsequent actuation of the gripper is prevented by appropriate circuit arrangements and, if necessary, after multiple attempts to open it by means of the endless conveyor and the pressure rollers, this sack, which cannot be opened, is transported away from the storage table counter to its operational further direction of conveyance or is ejected.

Die Zeichnung gibt ein Ausführungsbeispiel der Erfindung in schematischer Darstellung wieder.The drawing shows an embodiment of the invention in a schematic representation.

Es zeigen:

  • Fig. 1 einen Längsschnitt durch die Vorrichtung nach der Erfindung,
  • Fig. 2 eine Teildraufsicht auf die unterhalb der Auf­lagefläche des Tisches befindlichen Vorrichtungs­teile, wobei die Auflagefläche des Tisches nur gestrichelt wiedergegeben ist,
  • Fig. 3 einen Schnitt durch die Darstellung nach Fig. 2 entlang der Schnittlinie III-III.
Show it:
  • 1 shows a longitudinal section through the device according to the invention,
  • 2 is a partial top view of the device parts located below the support surface of the table, the support surface of the table being shown only in broken lines,
  • Fig. 3 shows a section through the representation of FIG. 2 along the section line III-III.

Gemäß der Anordnung nach Fig. 1 ist an dem unteren Ende eines insgesamt mit 1 bezeichneten Rahmengestelles ein Ablagetisch 2 für die auszurichtenden Säcke vorge­sehen, welcher an dem Rahmengestell 1 gehalten ist.According to the arrangement according to FIG. 1, a storage table 2 for the sacks to be aligned is provided at the lower end of a frame designated as a whole, which is held on the frame 1.

Unterhalb des Ablagetisches 2 sind zwei im Abstand pa­rallel zueinander verlaufende Leisten 3 und 4 vorge­sehen.Below the storage table 2, two strips 3 and 4 running parallel to one another at a distance are provided.

Von den Leisten 3 und 4 ragen Zentrierfinger 5 auf, welche durch Schlitze 6 durch den Ablagetisch 2 hin durchragen und an ihren oberen Enden gegeneinander ab­gewinkelt sind.Centering fingers 5 protrude from the strips 3 and 4, which protrude through slots 6 through the storage table 2 and are angled at their upper ends.

In dem dargestellten Beispiel sind an jeder Leiste 3 bzw. 4 drei aufragende Zentrierfinger 5 vorgesehen.In the example shown, three upstanding centering fingers 5 are provided on each bar 3 or 4.

Die Leisten 3 und 4 sind gegeneinander hin und her be­wegbar gehalten. Zu diesem Zweck ist jede der Leisten mit einer Kolbenzylinderanordnung 7 bzw. 8 verbunden, die ihrerseits auf einem Schlitten 9 bzw. 10 befestigt ist. Jeder der Schlitten 9 und 10 ist auf zwei quer zu den Leisten 3 und 4 verlaufenden Trägern in Form von Spindeln 11 und 12 geführt bzw. der eine Abschnitt eines jeden Schlittens 9 bzw. 10 ist gleitend auf einer der Spindeln 11 bzw. 12 gehalten, während sein anderes Ende mit einer Gewindehülse der jeweils anderen Spindel verbunden ist bzw. die Gewindehülse der jeweils anderen Spindel bildet. Auf diese Weise kann durch Verdrehung der Spindeln 11 und 12 um ihre Längsachsen eine gegen­seitige Verschiebung der Schlitten 9 und 10 erfolgen, so daß die Leisten 3 und 4 auf unterschiedliche Abstände einstellbar sind.The strips 3 and 4 are kept movable back and forth. For this purpose, each of the strips is connected to a piston cylinder arrangement 7 or 8, which in turn is fastened on a carriage 9 or 10. Each of the carriages 9 and 10 is guided in the form of spindles 11 and 12 on two supports running transversely to the strips 3 and 4, or the one section of each carriage 9 and 10 is slidably held on one of the spindles 11 and 12, while its other end is connected to a threaded sleeve of the other spindle or forms the threaded sleeve of the other spindle. In this way, by rotating the spindles 11 and 12 about their longitudinal axes, a mutual displacement of the carriages 9 and 10 can take place, so that the strips 3 and 4 can be adjusted to different distances.

Die Leisten 3 und 4 mit den aufragenden Zentrierfin­gern 5 dienen zur Ausrichtung der auf den Ablagetisch 2 zwischen die in der Spreizstellung befindlichen Leisten aufgelegten Säcke, so daß diese in eine Position ge­bracht werden, bei der zwei ihrer Kanten mit den Leisten 3 und 4 fluchten.The strips 3 and 4 with the upstanding centering fingers 5 are used to align the sacks placed on the storage table 2 between the strips in the spread position, so that they are brought into a position in which two of their edges are aligned with the strips 3 and 4.

Zwischen den Leisten 3 und 4 und mit diesen parallel verlaufend ist ein insgesamt mit 15 bezeichneter End­losförderer vorgesehen, dem ein elektromotorischer An­trieb 16 zugeordnet ist.Between the strips 3 and 4 and running parallel to them there is an endless conveyor, designated overall by 15, to which an electromotive drive 16 is assigned.

Das obere Trum 15a des Endlosförderers 15 verläuft dicht oberhalb der Ebene des Ablagetisches 2.The upper run 15a of the endless conveyor 15 runs closely above the level of the storage table 2.

Oberhalb des Endlosförderers 15 bzw. seines oberen Trums 15a sind in einem Querträger 1a des Rahmengestelles 1 Andruckrollen 17, 18 und 19 mit diesen zugeordneten Kolbenzylinderanordnungen 20 und 21 gehalten. Die An­druckrolle 17 ist im Bereich des einen Endes des oberen Trums 15a des Endlosförderers 15 angeordnet, während die anderen Andruckrollen 18 und 19 an einer gemeinsamen Tragplatte 22 in Richtung mit dem Endlosförderer fluchtend und oberhalb des anderen Endes des Endlosförderers 15 angeordnet sind.Above the endless conveyor 15 or its upper run 15a, pressure rollers 17, 18 and 19 with piston cylinder arrangements 20 and 21 associated therewith are held in a cross member 1a of the frame 1. The pressure roller 17 is arranged in the region of one end of the upper run 15a of the endless conveyor 15, while the other pressure rollers 18 and 19 are aligned on a common support plate 22 in the direction of the endless conveyor and are arranged above the other end of the endless conveyor 15.

Mittels der Kolbenzylinderanordnungen 20 und 21 können die Andruckrollen 17 bzw. 18 und 19 in Richtung der Doppelpfeile 23 verfahren sowie in eine Andruckstel­lung gegen das obere Trum 15a des Endlosförderers gedrückt werden.By means of the piston-cylinder arrangements 20 and 21, the pressure rollers 17 or 18 and 19 can move in the direction of the double arrows 23 and can be pressed into a pressure position against the upper run 15a of the endless conveyor.

In der Tischplatte des Ablagetisches 2 sind weiterhin Sensoren 24 und 25 angeordnet. Der Sensor 24 ist als Positionierungssensor außerhalb der Auflegeposition des Sackes in Richtung seiner Weiterförderung bei Abnahme von dem Ablagetisch 2 angeordnet.Sensors 24 and 25 are also arranged in the table top of the storage table 2. The sensor 24 is arranged as a positioning sensor outside the placement position of the sack in the direction of its further conveyance when it is removed from the storage table 2.

Demgegenüber ist der andere Sensor 25 im Bereich der Auflageposition des Sackes jedoch gegen die Weiterför­derrichtung des Sackes so weit von dem Positionierungs­sensor 24 entfernt angeordnet, daß er außerhalb des Sackes in seiner Endposition auf dem Ablagetisch 2 liegt.In contrast, the other sensor 25 is arranged in the area of the support position of the sack so far away from the positioning sensor 24 against the direction in which the sack is conveyed that it lies outside the sack in its end position on the storage table 2.

Die Zuführung eines jeden Sackes erfolgt in der Weise, daß der Sack so auf den Ablagetisch 2 abgelegt wird, daß er zwischen den einander gegenüberliegenden Zen­trierfingern 5 und unter die Andruckrollen 17 und 18 zu liegen kommt.Each sack is fed in such a way that the sack is placed on the storage table 2 in such a way that it comes to rest between the opposing centering fingers 5 and under the pressure rollers 17 and 18.

Es erfolgt nunmehr zunächst eine Zentrierung des Sackes mittels der Zentrierfinger 5, indem die Leisten 3 und 4 über die zugeordneten Kolbenzylinderanordnungen 7 und 8 bis in ihre Endstellungen gegeneinander bewegt werden. In dieser in Fig. 3 wiedergegebenen Position liegen die Zentrierfinger 5 bei entsprechender vorheriger Justierung der Leisten 3 und 4 an den seitlichen Längs­rändern des Sackes an. In Fig. 3 ist ein Sack S gestri­chelt in dieser Position wiedergegeben.The sack is now first centered by means of the centering fingers 5, in that the strips 3 and 4 are moved relative to one another up to their end positions via the associated piston-cylinder arrangements 7 and 8. In this position shown in Fig. 3, the centering fingers 5 rest on the lateral longitudinal edges of the sack with corresponding prior adjustment of the strips 3 and 4. In Fig. 3 a sack S is shown in dashed lines in this position.

Es erfolgt nunmehr die Ausrichtung des Sackes in der anderen Richtung mit Hilfe des Endlosförderers 15 und der Andruckrolle 17. Dabei wird der Endlosförderer nur dann betätigt, wenn der Sensor 25 von einem Sack abgedeckt ist. Bei eingeschaltetem Antreibe 16 des Endlosförderers 15 wird durch Andruck der Andruckrolle 17 der Sack in Richtung zum Positionierungssensor 24 befördert. Sobald er den Positionierungssensor erreicht bzw. überdeckt hat, wird über den Sensor und eine Steuerungseinrichtung der Antriebe 16 des Endlosförderers abgeschaltet und die Andruckrolle 17 durch die Kolbenzylinderanordnung 20 angehoben.The sack is now aligned in the other direction with the aid of the endless conveyor 15 and the pressure roller 17. The endless conveyor is actuated only when the sensor 25 is covered by a sack. When the drive 16 of the endless conveyor 15 is switched on, the bag is conveyed in the direction of the positioning sensor 24 by pressing the pressure roller 17. As soon as it has reached or covered the positioning sensor, the drive 16 of the endless conveyor is switched off via the sensor and a control device and the pressure roller 17 is raised by the piston-cylinder arrangement 20.

Zum öffnen des in dieser Position befindlichen Sackes sind in dem Rahmengestell 1 Saugköpfe 26 und 27 ange­ordnet, von denen der Saugkopf 27 über eine Kolbenzy­linderanordnung 28 heb- und senkbar gehalten ist.To open the sack located in this position 1 suction heads 26 and 27 are arranged in the frame, of which the suction head 27 is held by a piston-cylinder arrangement 28 can be raised and lowered.

Die Saugköpfe 26 und 27 greifen an dem Sack im Bereich desjenigen Randes an, der auch mit dem Positionierungs­sensor 24 zusammenwirkt.The suction heads 26 and 27 engage the sack in the region of the edge which also interacts with the positioning sensor 24.

Nach erfolgter Öffnung des Sackes durch die Saugköpfe 26 und 27 wird der Sack in nicht dargestellter Weise in geöffnetem Zustand von Greifern erfaßt und weiter­befördert, beispielsweise auf eine Sackklemme aufge­streift.After the sack has been opened by the suction heads 26 and 27, the sack is gripped and conveyed further in the open state, not shown, in the open state and conveyed further, for example, onto a sack clamp.

Sollte ein Sack sich nicht öffnen lassen, so kann durch entsprechende Einstellung der Saugkraft beispielsweise dafür gesorgt werden, daß der Sack von dem heb- und senkbaren Saugkopf 27 mit nach oben genommen wird und hierdurch der Positionierungssensor 24 nicht mehr von dem Sack abgedeckt ist, so daß in Abhängigkeit von diesem Zustand bei entsprechender Zeitsteuerung für die Wirk­samkeit des Positionierungssensors 24 die Saugwirkung auf den Sack unterbrochen sowie gleichzeitig der End­losförderer 15 über den Antrieb 16 in umgekehrter Richtung angetrieben und die Andruckrollen 18 und 19 mittels der Kolbenzylinderanordnung 21 in die Andruckstellung nach unten verfahren werden und somit der Sack gegen seine normale Weiterförderrichtung abgezogen und von dem Ablagetisch 2 in Richtung des Pfeiles 28 aus der Vorrichtung ausgeworfen wird.If a sack cannot be opened, appropriate adjustment of the suction force can ensure, for example, that the sack is taken up by the suction head 27, which can be raised and lowered, and as a result the positioning sensor 24 is no longer covered by the sack that depending on this state with appropriate timing for the effectiveness of the positioning sensor 24, the suction on the sack is interrupted and at the same time the endless conveyor 15 is driven by the drive 16 in the opposite direction and the pressure rollers 18 and 19 move by means of the piston-cylinder arrangement 21 into the pressure position downwards are and thus the sack is pulled against its normal direction of conveyance and is ejected from the storage table 2 in the direction of arrow 28 from the device.

Die Steuerung zum Auswerfen eines Sackes, welcher sich nicht öffnen läßt, kann auch in anderer Weise, beispiels­weise über die Saugköpfe 26 und 27, erfolgen.The control for ejecting a sack that cannot be opened can also take place in a different way, for example via the suction heads 26 and 27.

Claims (9)

1. Vorrichtung zum Ausrichten und Öffnen flachliegender Kunststoffsäcke (S), bei der jeder Sack auf einen Ablagetisch (2) abgelegt und in eine vorbestimmte Lage auf den Tisch überführt sowie in der ausgerich­teten Position mittels an den öffnungsseitigen Enden der Sackwandungen angreifender Saugköpfe (26,27) in die Offenstellung überführt wird, dadurch gekenn­zeichnet, daß zur Ausrichtung des Sackes (S) in der einen Richtung unterhalb des Ablagetisches (2) zwei im Abstand parallel verlaufende Leisten (3,4) über einen Antrieb gegeneinander hin und her bewegbar gehalten und mit durch Schlitze (6) des Tisches (2) hindurch aufragenden Zentrierfingern (5) ausgerüstet sind, daß zur Ausrichtung des Sackes in der anderen Richtung zwichen den Leisten (3,4) ein parallel zu diesen verlaufender reversibel antreibbarer End­losförderer (15) vorgesehen ist, dessen oberes Trum (15a) dicht oberhalb der Tischebene verläuft, wobei dem Förderer (15) von oben auf die Endbereiche seines oberen Trums (15a) absenkbare Andruckrollen (17;18,19) zugeordnet sind, und daß in der Tischplatte durch den jeweils aufgelegten Sack betätigbare Sensoren (24,25) zur Steuerung der Hubbewegung der Andruckrollen und des Endlosförderers angeordnet sind.1.Device for aligning and opening flat-lying plastic sacks (S), in which each sack is placed on a storage table (2) and transferred to a predetermined position on the table, and in the aligned position by means of suction heads (26, 22) which engage on the opening-side ends of the sack walls. 27) is transferred to the open position, characterized in that for aligning the sack (S) in one direction below the storage table (2), two strips (3, 4) running parallel to one another are held in a mutually movable manner by a drive and are equipped with centering fingers (5) which protrude through slots (6) in the table (2) so that a parallel, reversibly drivable endless conveyor (15) is provided between the strips (3, 4) for aligning the sack in the other direction , whose upper run (15a) runs just above the table level, the conveyor (15) from above onto the end regions of its upper run (15a) lowerable pressure rollers (17; 18, 19) are assigned, and that actuatable sensors (24, 25) for controlling the lifting movement of the pressure rollers and the endless conveyor are arranged in the table top by the respectively placed sack. 2. Vorrichtung nach Anspruch 1,dadurch gekennzeichnet, daß jede Leiste (3,4) mit einer Kolbenzylinderan­ordnung (7,8) verbunden ist, die ihrerseits jeweils quer zur Längsrichtung der Leiste verschiebbar an einem Träger (11,12) gehalten ist.2. Device according to claim 1 , characterized in that each strip (3,4) is connected to a piston-cylinder arrangement (7,8), which in turn is held on a carrier (11, 12) so as to be displaceable transversely to the longitudinal direction of the strip. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß unterhalb der Leisten (3,4) zwei parallele, quer zu den Leisten verlaufende Träger in Form von Spindeln (11,12) vorgesehen sind, auf denen gegensinnig ver­fahrbare Schlitten (9,10) gehalten und geführt sind, welche jeweils eine Kolbenzylinderanordnung (7,8) tragen.3. Apparatus according to claim 2, characterized in that below the strips (3, 4) there are provided two parallel supports running transversely to the strips in the form of spindles (11, 12), on which carriages (9, 10) which can be moved in opposite directions. are held and guided, each of which carries a piston-cylinder arrangement (7,8). 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß jeder Schlitten (9;10) mit einer auf der einen Spindel (11 bzw. 12) geführten Gewindehülse verbunden und auf der anderen Spindel gleitend geführt ist.4. Apparatus according to claim 3, characterized in that each carriage (9; 10) with a on one spindle (11 or 12) guided threaded sleeve and is slidably guided on the other spindle. 5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß für die Andruckrollen (17;18,19) Hubantriebe (20;21) in Form von Kolben­zylinderanordnungen vorgesehen sind, die in einem vom Tisch (2) aufragenden Gestell (1) gehalten sind.5. Device according to one of the preceding claims, characterized in that for the pressure rollers (17; 18, 19) lifting drives (20; 21) are provided in the form of piston-cylinder arrangements which are held in a frame (1) which rises from the table (2) are. 6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein Sensor (24) als Po­sitionierungssensor außerhalb der Auflegeposition des Sackes (S) in Richtung der Weiterförderung des Sackes bei seiner Abnahme von dem Tisch (2) angeordnet ist.6. Device according to one of the preceding claims, characterized in that a sensor (24) is arranged as a positioning sensor outside the laying position of the bag (S) in the direction of further conveyance of the bag when it is removed from the table (2). 7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß ein weiterer Sensor (25) im Bereich der Aufle­geposition des Sackes (S), jedoch gegen die Weiter­förderrichtung des Sackes so weit von dem Positio­nierungssensor (24) entfernt angeordnet ist, daß er außerhalb des Sackes in seiner Endposition auf dem Tisch (2) liegt.7. The device according to claim 6, characterized in that a further sensor (25) in the application position of the sack (S), but against the further direction of the sack so far from the positioning sensor (24) is arranged that it is outside the sack is in its end position on the table (2). 8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß im Bereich des Positionie­rungssensors (24) die an den Sackwandungen angreifen­den Saugköpfe (26,27) angeordnet sind, von denen wenigstens einer mit einer Hubeinrichtung (28) ver­bunden ist.8. Device according to one of the preceding claims, characterized in that in the region of the positioning sensor (24) the suction heads (26, 27) acting on the bag walls are arranged, at least one of which is connected to a lifting device (28). 9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Sensoren (24,25) mit einer Steuerungseinrichtung verbunden sind derart, daß der auf den Tisch (2) aufgelegte Sack (S) nach seiner Ausrichtung durch die Zentrierfinger (5) mittels des Endlosförderers (15) bis zum Erreichen des Po­sitionierungssensors (24) gefördert wird und nicht in die Offenstellung überführbare Säcke mittels des Endlosförderers (15) gegen die Weiterförderrichtung des Sackes ausgeworfen werden.9. Device according to one of the preceding claims, characterized in that the sensors (24, 25) are connected to a control device such that the bag (S) placed on the table (2) after its alignment by the centering fingers (5) by means of of the endless conveyor (15) is conveyed until the positioning sensor (24) is reached and sacks that cannot be moved into the open position are ejected by means of the endless conveyor (15) against the further conveying direction of the sack.
EP88119739A 1988-06-03 1988-11-26 Device for orienting and opening flat-lying plastic bags Expired - Lifetime EP0344363B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88119739T ATE101569T1 (en) 1988-06-03 1988-11-26 DEVICE FOR ALIGNING AND OPENING FLAT PLASTIC BAGS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3818793 1988-06-03
DE3818793A DE3818793A1 (en) 1988-06-03 1988-06-03 DEVICE FOR ALIGNING AND OPENING LAYING PLASTIC BAGS

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EP0344363A1 true EP0344363A1 (en) 1989-12-06
EP0344363B1 EP0344363B1 (en) 1994-02-16

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EP88119739A Expired - Lifetime EP0344363B1 (en) 1988-06-03 1988-11-26 Device for orienting and opening flat-lying plastic bags

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AT (1) ATE101569T1 (en)
DE (2) DE3818793A1 (en)
ES (1) ES2050143T3 (en)

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EP0577880A1 (en) * 1992-06-05 1994-01-12 Newlong Machine Works, Ltd. Abnormality detecting apparatus for bags with handle
EP1306331A1 (en) * 2001-10-23 2003-05-02 Fuji Photo Film Co., Ltd. Sheet member positioning device
CN104797502A (en) * 2012-09-24 2015-07-22 海福和博克公司 Method and device for processing stacks of bags

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Publication number Priority date Publication date Assignee Title
ES2181545B2 (en) * 2000-07-21 2004-02-16 Payper Sa SACOS CENTER TABLE FOR ENSACAD0RAS MACHINES.
ES2527782B1 (en) * 2013-07-29 2015-08-10 Payper, S.A. Centering table for pre-assembled bags, and centering procedure for said bags

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GB2172270A (en) * 1985-02-25 1986-09-17 Windmoeller & Hoelscher Apparatus for aligning a sack to be filled
FR2584676A1 (en) * 1985-07-11 1987-01-16 Kureha Chemical Ind Co Ltd AUTOMATIC FILLING AND PACKAGING SYSTEM

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DE2821273C2 (en) * 1978-05-16 1985-07-25 Windmöller & Hölscher, 4540 Lengerich Device for attaching large sacks to the filling funnel of a sack filling device

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Publication number Priority date Publication date Assignee Title
GB2172270A (en) * 1985-02-25 1986-09-17 Windmoeller & Hoelscher Apparatus for aligning a sack to be filled
FR2584676A1 (en) * 1985-07-11 1987-01-16 Kureha Chemical Ind Co Ltd AUTOMATIC FILLING AND PACKAGING SYSTEM

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0577880A1 (en) * 1992-06-05 1994-01-12 Newlong Machine Works, Ltd. Abnormality detecting apparatus for bags with handle
EP1306331A1 (en) * 2001-10-23 2003-05-02 Fuji Photo Film Co., Ltd. Sheet member positioning device
US6955350B2 (en) 2001-10-23 2005-10-18 Fuji Photo Film Co., Ltd. Sheet member positioning device
CN104797502A (en) * 2012-09-24 2015-07-22 海福和博克公司 Method and device for processing stacks of bags
US20150284119A1 (en) * 2012-09-24 2015-10-08 Haver & Boecker Ohg Apparatus and method for processing stacks of bags
US9522754B2 (en) * 2012-09-24 2016-12-20 Haver & Boecker Ohg Apparatus and method for processing stacks of bags
CN104797502B (en) * 2012-09-24 2018-03-30 海福和博克公司 The apparatus and method for processing a large amount of bags

Also Published As

Publication number Publication date
EP0344363B1 (en) 1994-02-16
ATE101569T1 (en) 1994-03-15
DE3887877D1 (en) 1994-03-24
ES2050143T3 (en) 1994-05-16
DE3818793A1 (en) 1989-12-07

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