EP0444009A1 - Dispositif de manutention pour tôles et analogue - Google Patents

Dispositif de manutention pour tôles et analogue Download PDF

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Publication number
EP0444009A1
EP0444009A1 EP91890023A EP91890023A EP0444009A1 EP 0444009 A1 EP0444009 A1 EP 0444009A1 EP 91890023 A EP91890023 A EP 91890023A EP 91890023 A EP91890023 A EP 91890023A EP 0444009 A1 EP0444009 A1 EP 0444009A1
Authority
EP
European Patent Office
Prior art keywords
magnets
conveying device
lifting
metal sheets
rotation
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
EP91890023A
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German (de)
English (en)
Other versions
EP0444009B1 (fr
Inventor
Herbert Lackner
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.)
Voith Werke Ing A Fritz Voith GmbH and Co KG
Original Assignee
Voith Werke Ing A Fritz Voith GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3488897&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0444009(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voith Werke Ing A Fritz Voith GmbH and Co KG filed Critical Voith Werke Ing A Fritz Voith GmbH and Co KG
Publication of EP0444009A1 publication Critical patent/EP0444009A1/fr
Application granted granted Critical
Publication of EP0444009B1 publication Critical patent/EP0444009B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/04—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means
    • B66C1/06—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means electromagnetic

Definitions

  • the invention relates to a conveying device for metal sheets or the like.
  • a conveying device for metal sheets or the like.
  • at least one lifting magnet that can be attached to a lifting device via a lifting tackle and is pivotally supported about a horizontal axis of rotation.
  • Lifting magnets have been used up to now on chain slings or the like. attached as lifting tackle to a hoist and take up a horizontal position when lifting a load. Sheet metal panels can therefore also only be transported in such a horizontal position with such lifting magnets, which brings with it considerable space problems, particularly in the case of larger sheet metal panel dimensions.
  • Sheet metal conveyors with pincer-shaped grippers, which allow an approximately vertically hanging sheet metal sheet conveying, are again very complex and expensive and fear sheet metal damage.
  • the invention is therefore based on the object of eliminating these deficiencies and of providing a conveyor device of the type described at the outset which ensures simple, rational and, above all, space-saving handling of metal sheets, even of large dimensions.
  • each lifting magnet is freely rotatably mounted in support bearings of the receiving tableware and preferably the pivoting movement of the magnets in the direction of rotation is limited by a horizontal stop. Because of the free pivotability of the lifting magnet or magnets, when lifting the metal sheets, which are picked up by the lifting magnets off-center, the metal sheets are edged up and the sheets are transported in a steep inclined position, which depends on the eccentricity of the metal sheet center of gravity compared to the magnetic center of gravity . This rotatability of the lifting magnets alone makes it possible to transport and handle sheet metal panels of any size in a clever and space-saving manner, the construction and production expenditure for the conveyor device remaining extremely low.
  • the support for the magnets forming the tableware can be designed practically as desired and combined with any hoist, so that the area of application of the conveyor device is not limited to special new crane structures and manipulators or the like and their use does not require any special retrofitting work for existing hoists.
  • lifting magnets So that larger metal sheets can be transported, two or more lifting magnets are required, these lifting magnets then being lined up next to one another and pivotable about a common axis of rotation in order to ensure that the metal sheets can be tilted up when lifting and the corresponding tilting down when the metal sheets are put down.
  • a horizontal sheet transport can also be carried out with this conveying device, for which purpose only the magnets have to be placed so eccentrically on the boards that the resulting torque presses the magnets against the horizontal stop.
  • the axis of rotation is offset downwards and laterally in relation to the parallel center of gravity of the magnets in the direction of the horizontal stop, since the load-free lifting magnets automatically pivot into the horizontal position due to the existing torque and a defined starting position of these lifting magnets is always present is.
  • the swiveling moment caused by a load pick-up far exceeds this restoring moment, so that the inclined position of the metal sheets is not impaired during transport.
  • the magnets can also be pivoted into the vertical position determined by the vertical stop by means of a corresponding abutment torque and can thus be used, for example, to hold upright sheets. In order to achieve this moment of impetus, it is sufficient to touch the magnets, for example, at the edges of the sheet metal, or to carry out similar movements with the hoist without any problems.
  • the support bearings of the magnets are each integrated in a parallel link-like suspension of the receiving tableware, the pivot axes of the suspension extending normal to the axis of rotation of the magnets.
  • These hangers allow a transverse movement to the pivoting movement of the magnets, so that the position of the lifting magnets can adapt to the corrugations and bending lines of the sheets and there is no risk of the magnets coming loose due to excessive tearing or tilting forces or the like. is coming.
  • the magnets can follow any existing height differences of the mounting points when placing them on metal sheets, and it is ensured that all magnets are really well placed on the sheet metal surface.
  • the limit stop ensures that the magnets are in exactly the same hanging position and that the metal sheets are properly hung.
  • the suspension rods can be used in two rotational positions assigned to the rectangular sides in the receiving carrier, since the position of the magnets can be adapted in shape to the sheets to be transported.
  • the rectangular lifting magnets are aligned lengthways to these strips when transporting sheet metal strips and not transversely to their length as when transporting larger metal sheets.
  • the lifting force of the magnets can be adjusted to the weight of the sheet metal to be lifted.
  • a simple voltage control of the power supply for the magnets is provided for setting the holding force, so that the operating personnel can ensure such a setting or a change in the setting at any time.
  • the conveying device is used for a sheet metal magazine which forms compartments for the storage of upturned metal sheets, the compartments having side supports or side support surfaces which are inclined outwards and floor supports or floor support surfaces which are inclined downwards towards the supports.
  • a sheet metal magazine only requires a fraction of the space that a conventional magazine for flat metal sheets requires and results in an optimal addition to the conveyor device according to the invention, which promotes the metal sheets hanging in an inclined position.
  • the metal sheets can be properly placed in the compartments and also removed from the compartments again, the sloping side support surfaces and the inclined floor supports guaranteeing that the metal sheets lie tightly together in the compartments and that storage is particularly space-saving.
  • a conveyor device 1 which consists of a lifting tackle 3 that can be attached to a lifting device 2 and at least one, but preferably three or more, lifting magnets 4 lined up next to one another.
  • These lifting magnets are pivotally mounted about a horizontal axis of rotation 5 in support bearings 6 of the receiving tableware 3, a horizontal stop 7 limiting the pivoting movement in one direction of rotation so that a horizontal magnet position is determined.
  • the axis of rotation 5 is offset relative to the axis of gravity S of the magnets 4 parallel to the axis of rotation downwards and laterally in the direction of the horizontal stop 7, as indicated in FIG.
  • the magnets 4 are forcibly brought into the horizontal position by the resulting torque and also held in this due to gravity. If a vertical stop 8 opposite to the horizontal stop is provided, the magnet can tip over from the horizontal position into the vertical position by a corresponding pushing moment, since when the magnet is pivoted and the relative movement of the center line and axis of rotation that occurs as a result, the center line S swings over the axis of rotation 5 from a certain swivel angle and then a torque in the opening direction arises (dashed line in Fig. 1).
  • the support bearings 6 are integrated in a parallel link-like suspension 9 of the receiving tableware 2, the pivot axes 10 of the suspension 9 extending normal to the axis of rotation 5 of the magnets.
  • the magnets 4 can thus be pivoted on the one hand about the pivot axis 5 and on the other hand about a normal horizontal axis, and of course it would also be possible to mount the magnets on the hangers via swivel or ball joints.
  • the hangers 9 are supported by a suspension rod 11 on a receiving support 12 of the dishes 3, the suspension rod 11 being slidably seated in a vertical guide 13 so that the magnets can adapt to different support heights.
  • the suspension rod 11 is supported by a corresponding stop head 14 on the receiving bracket 12, wherein notching 15 between the stop head 14 and the receiving bracket 12 allows two different rotational positions of the hangers 9 to be set, which make it possible to use the magnet 4 in length or width.
  • the mounting bracket 12 also allows the desired number of hangers 9 to be provided and easily lined up next to one another and at the same time results in a simple connection for the lifting device 2.
  • the conveyor device 1 can be optimally combined with a sheet metal magazine 16 which has compartments 17 for the upright storage of the metal sheets B.
  • the compartments form outwardly inclined side supports 18 and bottom supports 19 inclined downwards toward the side supports 18, so that the arranged metal sheets B lie closely and closely together.
  • the lifting magnets 4 Due to the special pivot bearing of the lifting magnets 4, it is now possible to take the metal sheets B flat and then to transport them in a hanging inclined position and to arrange them in the compartments 17 in the correct position.
  • the lifting magnets 4 only need to be placed off-center on the metal sheets (FIG. 3) and the tilting moment caused by gravity forces the metal sheets into a corresponding inclined position when the conveyor device is lifted (FIG. 4).
  • the metal sheets B can thus be introduced efficiently into the compartments 17 (FIG. 5), and individual metal sheets B can also be removed from the compartments 17 and placed flat again by simply lowering the conveying device 1 on the floor.
  • the horizontal stops 7 of the magnets 4 also make it possible, with a correspondingly selected eccentric mounting of the metal sheets B, to utilize the resulting tilting moment and to pivot the magnets in the direction limited by the stop, so that horizontal sheet metal delivery is also possible (dash-dotted illustration in FIG. 4).
  • the vertical stops 8 also allow the empty magnets 4 or the like to be taken into the compartments 17 for removal of individual metal sheets B by simply striking them on embedded metal sheets. to bring them into their vertical position and to be able to drive into the narrow compartments without difficulty.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP19910890023 1990-02-19 1991-02-12 Dispositif de manutention pour tôles et analogue Expired - Lifetime EP0444009B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT37490A AT402058B (de) 1990-02-19 1990-02-19 Fördervorrichtung für blechtafeln od. dgl.
AT374/90 1990-02-19

Publications (2)

Publication Number Publication Date
EP0444009A1 true EP0444009A1 (fr) 1991-08-28
EP0444009B1 EP0444009B1 (fr) 1993-08-25

Family

ID=3488897

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910890023 Expired - Lifetime EP0444009B1 (fr) 1990-02-19 1991-02-12 Dispositif de manutention pour tôles et analogue

Country Status (3)

Country Link
EP (1) EP0444009B1 (fr)
AT (1) AT402058B (fr)
DE (1) DE59100310D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2838729A1 (fr) * 2002-04-19 2003-10-24 Acodim Dispositif de manutention d'elements metalliques
KR100585455B1 (ko) 2005-10-14 2006-06-07 예해금 형강운반용 자력흡착기
WO2013179126A1 (fr) * 2012-05-31 2013-12-05 Magswitch Technology Inc. Dispositif de levage magnétique
US8878639B2 (en) 2005-09-26 2014-11-04 Magswitch Technology Worldwide Pty Magnet arrays

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19548654C1 (de) * 1995-12-15 1997-05-22 Mannesmann Ag Hebezeug mit einem Lastaufnahmemittel für Blechtafeln

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE226153C (fr) *
GB899590A (en) * 1961-01-25 1962-06-27 Jorgen Jensen Hansen Improvements in or relating to magnetic load-grasping devices
US3596967A (en) * 1969-01-31 1971-08-03 United States Steel Corp Lifting device
US4044894A (en) * 1976-05-25 1977-08-30 Walker Magnetics Group, Inc. Load tilting magnetic lift
DE2720769A1 (de) * 1977-05-09 1978-11-23 Steinert Elektromagnetbau Verfahren zum wenden eines quaderfoermigen koerpers, insbesondere einer bramme, sowie vorrichtung zur durchfuehrung des verfahrens
AT371787B (de) * 1981-09-11 1983-07-25 Schmidt Elisabeth Hebezeug zum transport von blechtafeln
DE3211218A1 (de) * 1982-03-26 1983-10-20 Neuhäuser GmbH + Co, 4670 Lünen Vorrichtung zum aufhaengen eines lasthebemagneten
FR2531259A1 (fr) * 1982-07-28 1984-02-03 Cothenet Dispositif d'electro-aimants orientable

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2440686C3 (de) * 1974-08-24 1979-10-18 Fried. Krupp Gmbh, 4300 Essen Greifvorrichtung für Blech- und Walzprofile
DD209793A1 (de) * 1982-09-20 1984-05-23 Paul Miersch Lastmagnet mit stapelvorrichtung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE226153C (fr) *
GB899590A (en) * 1961-01-25 1962-06-27 Jorgen Jensen Hansen Improvements in or relating to magnetic load-grasping devices
US3596967A (en) * 1969-01-31 1971-08-03 United States Steel Corp Lifting device
US4044894A (en) * 1976-05-25 1977-08-30 Walker Magnetics Group, Inc. Load tilting magnetic lift
DE2720769A1 (de) * 1977-05-09 1978-11-23 Steinert Elektromagnetbau Verfahren zum wenden eines quaderfoermigen koerpers, insbesondere einer bramme, sowie vorrichtung zur durchfuehrung des verfahrens
AT371787B (de) * 1981-09-11 1983-07-25 Schmidt Elisabeth Hebezeug zum transport von blechtafeln
DE3211218A1 (de) * 1982-03-26 1983-10-20 Neuhäuser GmbH + Co, 4670 Lünen Vorrichtung zum aufhaengen eines lasthebemagneten
FR2531259A1 (fr) * 1982-07-28 1984-02-03 Cothenet Dispositif d'electro-aimants orientable

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2838729A1 (fr) * 2002-04-19 2003-10-24 Acodim Dispositif de manutention d'elements metalliques
US8878639B2 (en) 2005-09-26 2014-11-04 Magswitch Technology Worldwide Pty Magnet arrays
US9484137B2 (en) 2005-09-26 2016-11-01 Magswitch Technology Worldwide Pty Ltd Magnet arrays
US9818522B2 (en) 2005-09-26 2017-11-14 Magswitch Technology Worldwide Pty Ltd Magnet arrays
KR100585455B1 (ko) 2005-10-14 2006-06-07 예해금 형강운반용 자력흡착기
WO2013179126A1 (fr) * 2012-05-31 2013-12-05 Magswitch Technology Inc. Dispositif de levage magnétique
CN104507845A (zh) * 2012-05-31 2015-04-08 磁转换技术股份有限公司 磁性升降装置

Also Published As

Publication number Publication date
EP0444009B1 (fr) 1993-08-25
ATA37490A (de) 1996-06-15
AT402058B (de) 1997-01-27
DE59100310D1 (de) 1993-09-30

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