EP0014698B1 - Machine for unfastening the strings or binders of packed goods - Google Patents

Machine for unfastening the strings or binders of packed goods Download PDF

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Publication number
EP0014698B1
EP0014698B1 EP79900122A EP79900122A EP0014698B1 EP 0014698 B1 EP0014698 B1 EP 0014698B1 EP 79900122 A EP79900122 A EP 79900122A EP 79900122 A EP79900122 A EP 79900122A EP 0014698 B1 EP0014698 B1 EP 0014698B1
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EP
European Patent Office
Prior art keywords
unit
suction
cross beam
machine
adjustable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP79900122A
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German (de)
French (fr)
Other versions
EP0014698A1 (en
Inventor
Peter Born
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.)
PETER BORN AG
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PETER BORN AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PETER BORN AG filed Critical PETER BORN AG
Publication of EP0014698A1 publication Critical patent/EP0014698A1/en
Application granted granted Critical
Publication of EP0014698B1 publication Critical patent/EP0014698B1/en
Expired legal-status Critical Current

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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
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/0025—Removing or cutting binding material, e.g. straps or bands
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/909—Cutting strand extending from or lying on strand or package support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5136—Separate tool stations for selective or successive operation on work
    • Y10T29/5137—Separate tool stations for selective or successive operation on work including assembling or disassembling station
    • Y10T29/5139—Separate tool stations for selective or successive operation on work including assembling or disassembling station and means to sever work prior to disassembling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y10T83/207—By suction means

Definitions

  • the invention relates to a machine for loosening and removing packaging cord or packaging tape of goods, with a portal stand and a conveying means that passes the goods through it, the portal stand having a horizontal yoke beam, which is adjustable in height, and a separating unit.
  • the uppermost goods stacked on pallets must be held together by a binding agent (cord or tape) lying in a horizontal plane.
  • the binder is removed after transport.
  • a pair of bar scissors is known with which the pallet truck driver cuts the cord or tape with which the goods are tied together. This work is cumbersome and tedious. In addition, the loosened binders and carrying the scissors are disruptive.
  • US-A-3 513 522 discloses a device for cutting and removing straps of pressed bales, e.g. B. hay bales. Several straps are cut using fixed, scissor-like pairs of knives. The cords lying next to one another in parallel are gathered after separation by a mechanical device, and the cords gathered together to form a strand are then gripped mechanically by a fork-shaped mandrel and removed from the pressed bales by rolling up. After the cords have been rolled up, a mechanical unloading device is provided, which strips the rolled-up cord strings and conveys them into a collecting container via a mechanical conveyor system.
  • a mechanical unloading device is provided, which strips the rolled-up cord strings and conveys them into a collecting container via a mechanical conveyor system.
  • This machine is characterized in that the yoke beam is adjustable by means of two rope strands, and in that the separating unit is fastened at the bottom on one end part of the yoke beam and a suction unit is adjustable in the longitudinal direction of the yoke beam at the bottom of the other end part, which units each have a tactile plate, which touch plates are under the action of springs, are attached to two bumpers in longitudinal bearings and are connected to an actuator.
  • the machine shown has a portal stand to which a conveying means 22 leads the goods 3 secured by a cord or a band (FIG. 1).
  • This portal stand is formed by a floor cross member 25, an upper cross member 26 and two columns 23, 24.
  • One column 23 is higher and provided at the top with a bracket 39 to which a chain hoist 37 equipped with a geared brake motor is attached.
  • This serves for the parallel height adjustment of a yoke beam 28 which is provided with roller guides 27 on both columns 23, 24.
  • the yoke beam 28 is suspended at one end on a rope strand 29 and at the other end on a rope strand 30.
  • the rope strand 29 is deflected around a fixed rope pulley 33 and connected to an eyelet 34 of a load hook 35 of a pulley 36 guided horizontally by a roller 38.
  • the other rope strand 30 is deflected via the two fixed rollers 32 and 33 and also fastened to the eyelet 34.
  • the block and tackle 36 is connected to the chain of the chain hoist 37 and the height adjustment of the yoke beam 28 can be adapted to the respective height of the uppermost corded goods 3 by manual switching or by automatic scanning.
  • a separating unit 1 is attached below and at the other end part a suction unit 2 in the longitudinal direction of the yoke beam 28 is fastened by releasable clamp connections 31.
  • Both units 1, 2 each have a plate on which two guide rods 11 are fastened (FIG. 2). On this a traverse 13 adjustable with a stroke drive 12 is guided. Two bumpers 15 are slidably held in two longitudinal bearings 19 fastened to the plate, and additionally guided through a hub 14 of the crossmember 13 with longitudinal bearings. The two rods 15 are attached at their outer end to eyes 16 of a touch shield 4. Springs 17, which are supported on the crossbeams 13, push the touch shield 4 forward with the desired force. The foremost position of the touch shield 4 is limited by stops 18. The touch plate 4 can be extended to the maximum position 20 (H max ). When in contact with the goods 3, the touch shield 4 remains in position 21.
  • Two vertical guide rods 7 are fastened to the tactile shield 4 of the separating unit 1 (FIG. 3).
  • a cutter head 5, which can be displaced by a lifting drive 6, is guided on these.
  • the knife of the same protrudes through a slot in the tactile shield 4 by at least the thickness of the binding agent (cord or tape), so that the cord or the tape can be gripped by the cutting edge of the knife.
  • a funnel-shaped suction head 8 is arranged on the tactile pattern 4 of the suction unit 2, the suction mouth 9 of which lies in the region of the cut-through binder (FIG. 4).
  • the suction head 8 is with connected to a suction hose 10 which leads into a vacuum container which acts as a separator and is connected to a suction fan (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)

Abstract

This machine has supports forming an arch (23-26) under which a transport vehicle (22) carries the goods (3) tied up or bound. A bridge (28) capable of vertical displacement along the pilars (23, 24) is suspended by cables (29, 30); these cables, moving around pulleys, are connected to a tackle connected to a motor (37). At one end of the bridge (28) is the separation unit (1) and at the other, the suction unit (2); these units being adjustably mounted, both units (1, 2) have a mobile suspended push-button switch (4). A cutting head (5) is connected to the switch (4) of the unit (1) and a suction head (8) is connected to the switch (4) of the unit (2), said suction head (8) removing the strings or binders which have been cut.

Description

Die Erfindung betrifft eine Maschine zum Lösen und Entfernen von Verpackungsschnur oder Verpackungsband von Gütern, mit einem Portalständer und einem die Güter durch diesen hindurchführenden Fördermittel, wobei der Portalständer einen horizontalen Jochbalken, der in der Höhe verstellbar ist, und eine Trenneinheit aufweist.The invention relates to a machine for loosening and removing packaging cord or packaging tape of goods, with a portal stand and a conveying means that passes the goods through it, the portal stand having a horizontal yoke beam, which is adjustable in height, and a separating unit.

Vorschriftsgemäß müssen die obersten, auf Paletten gestapelten Güter durch ein in eine Horizontalebene zu liegen kommendes Bindemittel (Schnur oder Band) zusammengehalten werden. Nach dem Transport wird das Bindemittel wieder entfernt.In accordance with the regulations, the uppermost goods stacked on pallets must be held together by a binding agent (cord or tape) lying in a horizontal plane. The binder is removed after transport.

Bekannt ist eine Stangenschere, mit welcher der Palettenhubwagenführer die Schnur oder das Band, womit die Güter zusammengebunden sind, durchschneidet. Diese Arbeit ist umständlich und mühsam. Zudem wirken die gelösten Bindemittel sowie das Mitführen der Schere störend.A pair of bar scissors is known with which the pallet truck driver cuts the cord or tape with which the goods are tied together. This work is cumbersome and tedious. In addition, the loosened binders and carrying the scissors are disruptive.

Durch die US-A-3 513 522 ist ein Gerät zum Schneiden und Entfernen von Umschnürungen gepreßter Ballen, z. B. Heuballen, bekanntgeworden. Das Schneiden von mehreren Umschnürungen geschieht durch festeingestellte, scherenartige Messerpaare. Die parallel nebeneinander liegenden Schnüre werden nach dem Trennen durch eine mechanische Einrichtung zusammengerafft, und die zu einem Strang zusammengerafften Schnüre werden anschließend durch einen gabelförmigen Dorn mechanisch ergriffen und durch Aufrollen von den gepreßten Ballen entfernt. Nach dem Aufrollen der Schnüre ist eine mechanische Entladevorrichtung vorgesehen, welche die aufgerollten Schnurbändel abstreift und über ein mechanisches Fördersystem in einen Sammelbehälter befördert.US-A-3 513 522 discloses a device for cutting and removing straps of pressed bales, e.g. B. hay bales. Several straps are cut using fixed, scissor-like pairs of knives. The cords lying next to one another in parallel are gathered after separation by a mechanical device, and the cords gathered together to form a strand are then gripped mechanically by a fork-shaped mandrel and removed from the pressed bales by rolling up. After the cords have been rolled up, a mechanical unloading device is provided, which strips the rolled-up cord strings and conveys them into a collecting container via a mechanical conveyor system.

Mit der erfindungsgemäßen Maschine werden die oben erwähnten Operationen vereinfacht. Diese Maschine ist dadurch gekennzeichnet, daß der Jochbalken mittels zwei Seilsträngen verstellbar ist, und daß unten an der einen Endpartie des Jochbalkens die Trenneinheit und unten an der anderen Endpartie eine Saugeinheit in der Längsrichtung des Jochbalkens verstellbar befestigt sind, welche Einheiten je einen Tastschild aufweisen, welche Tastschilder unter der Wirkung von Federn stehen, an je zwei in Längslagern geführten Stoßstangen befestigt sind und mit einem Stellabtrieb verbunden sind.The operations mentioned above are simplified with the machine according to the invention. This machine is characterized in that the yoke beam is adjustable by means of two rope strands, and in that the separating unit is fastened at the bottom on one end part of the yoke beam and a suction unit is adjustable in the longitudinal direction of the yoke beam at the bottom of the other end part, which units each have a tactile plate, which touch plates are under the action of springs, are attached to two bumpers in longitudinal bearings and are connected to an actuator.

In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt. Es zeigen:

  • Fig. 1 eine Ansicht der Maschine,
  • Fig. 2 einen Grundriß der Tastschild-Verstellvorrichtung,
  • Fig. 3 einen Tastschild mit einer Messerbetätigungsvorrichtung, und
  • Fig.4 einen Tastschild mit angebrachtem Absaugkopf.
In the drawing, an embodiment of the subject of the invention is shown. Show it:
  • 1 is a view of the machine,
  • 2 is a plan view of the touch plate adjustment device,
  • Fig. 3 shows a touch shield with a knife actuation device, and
  • 4 shows a touch shield with attached suction head.

Die dargestellte Maschine weist einen Portalständer auf, zu dem ein Fördermittel 22 die durch eine Schnur oder ein Band gesicherten Güter 3 führt (Fig 1). Dieser Portalständer ist durch eine Bodentraverse 25, eine obere Traverse 26 und zwei Säulen 23, 24 gebildet. Die eine Säule 23 ist höher und oben mit einer Konsole 39 versehen, an welcher ein mit einem Getriebe-Bremsmotor ausgerüsteter Kettenzug 37 befestigt ist. Dieser dient zur parallelen Höhenverstellung eines Jochbalkens 28, der mit Rollenführungen 27 an beiden Säulen 23, 24 versehen ist. Der Jochbalken 28 ist an einem Ende an einem Seilstrang 29 und am anderen Ende an einem Seilstrang 30 aufgehängt. Der Seilstrang 29 ist um eine feste Seilrolle 33 umgelenkt und mit einer Öse 34 eines Lasthakens 35 eines durch eine Rolle 38 horizontal geführen Flaschenzuges 36 verbunden. Der andere Seilstrang 30 ist über die beiden festen Rollen 32 und 33 umgelenkt und ebenfalls an der Öse 34 befestigt. Der Flaschenzug 36 ist mit der Kette des Kettenzuges 37 verbunden und die Höhenverstellung des Jochbalkens 28 läßt sich durch manuelle Schaltung oder durch eine automatische Abtastung an die jeweilige Höhe der obersten umschnürten Güter 3 anpassen.The machine shown has a portal stand to which a conveying means 22 leads the goods 3 secured by a cord or a band (FIG. 1). This portal stand is formed by a floor cross member 25, an upper cross member 26 and two columns 23, 24. One column 23 is higher and provided at the top with a bracket 39 to which a chain hoist 37 equipped with a geared brake motor is attached. This serves for the parallel height adjustment of a yoke beam 28 which is provided with roller guides 27 on both columns 23, 24. The yoke beam 28 is suspended at one end on a rope strand 29 and at the other end on a rope strand 30. The rope strand 29 is deflected around a fixed rope pulley 33 and connected to an eyelet 34 of a load hook 35 of a pulley 36 guided horizontally by a roller 38. The other rope strand 30 is deflected via the two fixed rollers 32 and 33 and also fastened to the eyelet 34. The block and tackle 36 is connected to the chain of the chain hoist 37 and the height adjustment of the yoke beam 28 can be adapted to the respective height of the uppermost corded goods 3 by manual switching or by automatic scanning.

An einer Endpartie des Jochbalkens 28 ist unten eine Trenneinheit 1 und an der anderen Endpartie eine Absaugeinheit 2 in der Längsrichtung des Jochbalkens 28 durch lösbare Klemmverbindungen 31 befestigt.At one end part of the yoke beam 28, a separating unit 1 is attached below and at the other end part a suction unit 2 in the longitudinal direction of the yoke beam 28 is fastened by releasable clamp connections 31.

Beide Einheiten 1, 2 weisen je eine Platte auf, an der zwei Führungsstangen 11 befestigt sind (Fig. 2). Auf diesen ist eine mit einem Hubantrieb 12 verstellbare Traverse 13 geführt. In zwei an der Platte befestigten Längslagern 19 sind zwei Stoßstangen 15 verschiebbar gehalten, und zusätzlich durch je eine Nabe 14 der Traverse 13 mit Längslagern geführt. Die beiden Stangen 15 sind an ihrem äußeren Ende an Augen 16 eines Tastschildes 4 befestigt. Durch Federn 17, die sich an den Traversen 13 abstützen, wird der Tastschild 4 mit der gewünschten Kraft nach vorne gedrückt. Die vorderste Stellung des Tastschildes 4 ist durch Anschläge 18 begrenzt. Der Tastschild 4 kann bis zur maximalen Stellung 20 (Hmax) ausgefahren sein. Beim Anliegen an die Güter 3 bleibt der Tastschild 4 in der Stellung 21 stehen.Both units 1, 2 each have a plate on which two guide rods 11 are fastened (FIG. 2). On this a traverse 13 adjustable with a stroke drive 12 is guided. Two bumpers 15 are slidably held in two longitudinal bearings 19 fastened to the plate, and additionally guided through a hub 14 of the crossmember 13 with longitudinal bearings. The two rods 15 are attached at their outer end to eyes 16 of a touch shield 4. Springs 17, which are supported on the crossbeams 13, push the touch shield 4 forward with the desired force. The foremost position of the touch shield 4 is limited by stops 18. The touch plate 4 can be extended to the maximum position 20 (H max ). When in contact with the goods 3, the touch shield 4 remains in position 21.

Am Tastschild 4 der Trenneinheit 1 sind zwei vertikale Führungsstangen 7 befestigt (Fig. 3). Auf diesen ist ein durch einen Hubantrieb 6 verschiebbarer Messerkopf 5 geführt. Das Messer derselben ragt durch einen Schlitz des Tastschildes 4 aus diesem, um mindestens die Dicke des Bindemittels (Schnur oder Band), vor, so daß die Schnur oder das Band von der Schneide des Messers erfaßt werden kann.Two vertical guide rods 7 are fastened to the tactile shield 4 of the separating unit 1 (FIG. 3). A cutter head 5, which can be displaced by a lifting drive 6, is guided on these. The knife of the same protrudes through a slot in the tactile shield 4 by at least the thickness of the binding agent (cord or tape), so that the cord or the tape can be gripped by the cutting edge of the knife.

Am Tastbild 4 der Absaugeinheit 2 ist ein trichterförmiger Saugkopf 8 angeordnet, dessen Saugmund 9 im Bereich des durchgeschnittenen Bindemittels liegt (Fig. 4). Der Saugkopf 8 ist mit einem Saugschlauch 10 verbunden, welcher in einen als Abscheider wirkenden Unterdruckbehälter führt, der an ein Sauggebläse angeschlossen ist (nicht dargestellt).A funnel-shaped suction head 8 is arranged on the tactile pattern 4 of the suction unit 2, the suction mouth 9 of which lies in the region of the cut-through binder (FIG. 4). The suction head 8 is with connected to a suction hose 10 which leads into a vacuum container which acts as a separator and is connected to a suction fan (not shown).

Claims (4)

1. A machine for cutting and removing cord or band from secured goods (3), with a portal stand (23-26) and a conveyor (22) leading through the latter, in which the portal stand has a horizontal cross beam (28) made vertically adjustable and a cutter unit (1), characterized in that the cross beam is adjustable by two rope lines (29, 30) and in that to the bottom side of one end section of the cross beam the cutter unit and to the bottom of the other end section a suction unit (2) are adjustable in the longitudinal direction of the cross beam (28), each of which units has a feeler plate (4) that is exposed to the action of springs (17) and that is secured to two push and pull rods (15) run in longitudinal bearings (19) and that is connected with a control drive (12).
2. A machine according to claim 1, characterized in that the rope lines (29, 30) are linked through a chain block (37) in actual connection with a gear brake motor.
3. A machine according to claim 1, characterized in that to the feeler plate (4) of the cutter unit (1) is attached minimum one vertical guide rod (7) on which is mounted a drive-actuated cutting head (5) that projects through a slot from the feeler plate (4).
4. A machine according to claim 1, characterized in that to the feeler plate (4) of the suction unit (2) is attached a funnel-shaped suction head (8) that is connected to a suction line (10).
EP79900122A 1978-03-02 1979-09-25 Machine for unfastening the strings or binders of packed goods Expired EP0014698B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH224178A CH625756A5 (en) 1978-03-02 1978-03-02
CH2241/78 1978-03-02

Publications (2)

Publication Number Publication Date
EP0014698A1 EP0014698A1 (en) 1980-09-03
EP0014698B1 true EP0014698B1 (en) 1982-01-06

Family

ID=4229149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79900122A Expired EP0014698B1 (en) 1978-03-02 1979-09-25 Machine for unfastening the strings or binders of packed goods

Country Status (7)

Country Link
US (1) US4328609A (en)
EP (1) EP0014698B1 (en)
JP (1) JPS5748456B2 (en)
CH (1) CH625756A5 (en)
DE (1) DE2961729D1 (en)
NL (1) NL184674C (en)
WO (1) WO1979000682A1 (en)

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NL8500606A (en) * 1985-03-04 1986-10-01 Endra Bv METHOD AND DEVICE FOR CUTTING AND REMOVING A WIRE OR STRAP STRING ELEMENT ATTACHED TO AN OBJECT OR STACK OF OBJECTS.
DE3545659A1 (en) * 1985-12-21 1987-06-25 Voith Gmbh J M DEVICE FOR REMOVING BINDING WIRE FROM BALLS, ESPECIALLY ROMBIAN WASTE PAPER OR FIBER BALES
DE3605215A1 (en) * 1986-02-19 1987-08-20 Hergeth Hubert METHOD AND DEVICE FOR POSITIONING A BALE RACKING DEVICE
JPS62235037A (en) * 1986-04-03 1987-10-15 北海製罐株式会社 Method and device for removing bundling cord of package
US5156516A (en) * 1988-06-29 1992-10-20 Vega Automation Device for breaking and removing a tie surrounding a bundle
FR2633587B1 (en) * 1988-06-29 1991-03-29 Vega Automation METHOD AND DEVICE FOR BREAKING AND REMOVING A LINK SURROUNDING A PACKAGE. CUT FEEDING METHOD AND APPARATUS USING THE SAME
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US5163216A (en) * 1990-05-15 1992-11-17 Lamb-Grays Harbor Co. Wire cutting and removal method
US5079826A (en) * 1990-05-15 1992-01-14 Lamb-Grays Harbor Co. Wire cutting and removal apparatus
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JP2832779B2 (en) * 1992-09-03 1998-12-09 花王株式会社 Method and apparatus for cutting and recovering bound body
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US5768760A (en) * 1995-10-31 1998-06-23 Nynex Science & Technology, Inc. System and method for automatically processing coin collection boxes
DE102005055803B4 (en) * 2005-11-21 2017-06-14 Eurapack Gmbh Device for removing a fuse element
MX2009004421A (en) * 2006-10-27 2009-05-11 Busse Sji Corp Strap removal system.
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US8167966B2 (en) * 2008-04-07 2012-05-01 Cummins Filtration Ip, Inc. Replaceable filter cartridge with removal feature
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CN106144097B (en) * 2016-08-25 2019-03-01 上海和科设备制造有限公司 A kind of flat pipe group outer packaging dismounting device

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CH531957A (en) * 1970-12-03 1972-12-31 Schweiz Aluminium Ag Method for unpacking cylindrical bodies connected to one another in groups by film strips and device for carrying out the method
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US3926322A (en) * 1974-07-29 1975-12-16 Stewart Walker Company Apparatus for removing containers from packages

Also Published As

Publication number Publication date
JPS5748456B2 (en) 1982-10-16
JPS55500094A (en) 1980-02-21
NL184674B (en) 1989-05-01
US4328609A (en) 1982-05-11
DE2961729D1 (en) 1982-02-25
CH625756A5 (en) 1981-10-15
NL7900847A (en) 1979-09-04
NL184674C (en) 1989-10-02
EP0014698A1 (en) 1980-09-03
WO1979000682A1 (en) 1979-09-20

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