EP0567917A1 - Holding device for balancing units - Google Patents

Holding device for balancing units Download PDF

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Publication number
EP0567917A1
EP0567917A1 EP93106461A EP93106461A EP0567917A1 EP 0567917 A1 EP0567917 A1 EP 0567917A1 EP 93106461 A EP93106461 A EP 93106461A EP 93106461 A EP93106461 A EP 93106461A EP 0567917 A1 EP0567917 A1 EP 0567917A1
Authority
EP
European Patent Office
Prior art keywords
elements
load
mandrel
balancing
respect
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.)
Withdrawn
Application number
EP93106461A
Other languages
German (de)
English (en)
French (fr)
Inventor
Enzo Scaglia
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.)
Scaglia SRL
Original Assignee
Scaglia SRL
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 Scaglia SRL filed Critical Scaglia SRL
Publication of EP0567917A1 publication Critical patent/EP0567917A1/en
Withdrawn legal-status Critical Current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
    • B66C1/10—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 mechanical means
    • B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
    • B66C1/54—Internally-expanding grippers for handling hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
    • B65H67/064—Supplying or transporting cross-wound packages, also combined with transporting the empty core
    • B65H67/065—Manipulators with gripping or holding means for transferring the packages from one station to another, e.g. from a conveyor to a creel trolley
    • 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
    • B66C1/10—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 mechanical means
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/24—Single members engaging the loads from one side only

Definitions

  • the present invention concerns a holding device for balancing units.
  • the balancing units also known as weight zeroing devices, are well known since a long time and they essentially consist in a wire, provided on its lower end with a device for gripping and holding a load and, on its upper end, with a device which produces an upward thrust equal and opposed to the weight of the load which has been fastened below.
  • Balancing devices are used for numerous types of purposes, among which handling reels.
  • An object of the present invention is to solve the above mentioned problems by means of a holding device for weight zeroing devices, wherein it is possible to keep even lateral loads in a horizontal position and to ensure a good fastening to the same.
  • a load holding device for a balancing unit of the type comprising means for balancing, in the presence of a load, the load centre of gravity with respect to the wire suspending said balancing unit, characterized in that said means include a first element which is integral with said device and is positioned at a slant with reference to the vertical axis thereof; and a second element which is fixed to the lower end of the wire and axially shift with reference to said first element, said first and second elements being fixed to each other by elastic means which push them in a retracted position.
  • the self blocking elements are preferably formed by knurled pawls eccentrically assembled and normally kept in a protruding position, and the contrast elements are formed by a small piston activated by an electromagnet.
  • the mandrel is assembled in a movable and replaceable manner on the holding device, and a plurality of mandrels is provided, with different external diameters and the same internal diameter, which can be detachably mounted on the device depending on the diameter of the loads that must be moved.
  • the invention foresees that the device comprises a first portion which includes the mentioned tubular balancing elements, and a second portion which includes the mentioned fastening mandrel, said second portion being assembled on the first one and being imperniated thereon in such a manner to be able rotated with respect to the same, from a to a mandrel horizontal position to a mandrel vertical position and viceversa.
  • the means 3 include a first element 5, that is integral with the casing 1, and is fixed in a slanting position with respect to the vertical axis of the device, and a second element 6, that pivots in 8 on a flange 7 that is integral with the suspension cable 2.
  • the second element 6 can axially slide with reference to the first element and it is joined to it by a spring 9, or a similar elastic means which keeps the two elements 5 and 6 in a retracted position, i.e. a position in which the two elements at least partially overlapping.
  • the slanting angle with respect to the vertical of the elements 5 and 6 is generally between 40 and 50 degrees and is preferably approximately 45 degrees.
  • Elements 5 and 6 are preferably of a tubular shape and, as illustrated in figure 1, element 6 is housed coaxially inside the first element 5 and engages the same by means of bushes 10 in a material having a low friction coefficient, such as Glycodur (registered trademark).
  • the operation of the mechanical means 3 is completely automatic: once the load is positioned on the fastening mandrel 4, the load weight will make the elements 5 and 6 to translate with one another, thus leading to a new-equilibrium of the centre of gravity.
  • the contrast means will operate in the inverse direction.
  • Figure 2 illustrates a preferred embodiment of the elements 13 and their control system.
  • the elements 13 comprise three knurled pawls mounted in an eccentric position to obtain the required self-blocking in the direction indicated by the arrow F in figure 2 and rotatable in the direction of arrow G ( Figure 2).
  • the springs 14 push the pawls 13 towards their normally protruding position with respect to the mandrel 4, and a mobile contrast element 15, which is controlled by a small piston or an electromagnet 15a, brings them back into their retracted position when required.
  • the mandrel shown in figures 1 and 2 is a cylinder shaped type and is used to move reels, or in general loads which can be engaged with tubular elements.
  • the mandrel 4 is assembled in a detachable position, as for example by a bayonet lock, on the casing 1 of the device according to the invention, so that it can be replaced when necessary with other mandrels having different outer diameters but an identical inner diameter and an identical assembling system onto the casing.
  • a sensor is provided that indicates to the balancing unit the presence of a load 18 on the holding device.
  • the indicator 19 is preferably connected to the electromagnet 15a that controls the element 15 and activates the same to unblock the the pawls 13.
  • first load 12 is taken by the mandrel 4 and the self blocking elements 13, in case with a rotation of the device lower part around the articulated joint 16. Then, the elements 5 and 6 translate with one another and balance the centre of gravity of the load plus the device, so as to keep the load 12 substantially horizontal.
  • the sensor 18 monitors the presence of the load and communicates the same to the electronic part of the balancing equipment which effects the zeroing operation of the load weight.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Flexible Shafts (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP93106461A 1992-04-30 1993-04-21 Holding device for balancing units Withdrawn EP0567917A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI921024 1992-04-30
ITMI921024A IT1255110B (it) 1992-04-30 1992-04-30 Dispositivo di presa per apparecchi di bilanciamento

Publications (1)

Publication Number Publication Date
EP0567917A1 true EP0567917A1 (en) 1993-11-03

Family

ID=11363116

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93106461A Withdrawn EP0567917A1 (en) 1992-04-30 1993-04-21 Holding device for balancing units

Country Status (2)

Country Link
EP (1) EP0567917A1 (it)
IT (1) IT1255110B (it)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0863098A3 (de) * 1997-03-04 1999-07-14 Focke & Co. (GmbH & Co.) Vorrichtung zum Handhaben von Bobinen
EP0943574A2 (en) * 1998-03-20 1999-09-22 SCAGLIA S.p.A. Device to automatically attach a bobbin-bearing shaft to a mandrel of a machine
US6733058B1 (en) * 1999-09-20 2004-05-11 Himecs Corp. Winding roll lifting device with adjustable supporting arm and chuck member
WO2022130428A1 (en) * 2020-12-14 2022-06-23 Futura S.P.A. Plant and method for the movement of cardboard cores

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1259385A (fr) * 1959-12-04 1961-04-28 Briqueterie De Breuil Appareil de manutention pour produits perforés
FR2125218A1 (it) * 1971-02-19 1972-09-29 Chastagner Philippe
CH578480A5 (en) * 1975-04-11 1976-08-13 Stierli Othmar Load handling tackle - has pressure spring between pivoting arm and A-frame and eye with tension spring
DE3341351A1 (de) * 1983-11-15 1985-05-23 Alfred 5609 Hückeswagen Quaas Lastaufnahmevorrichtung sowie ihre verwendung in einer hebevorrichtung
US4708574A (en) * 1985-07-05 1987-11-24 D. W. Zimmerman Mfg., Inc. Apparatus for handling objects
DE8814900U1 (it) * 1988-11-30 1989-02-02 Lemm, Dieter, 4050 Moenchengladbach, De

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1259385A (fr) * 1959-12-04 1961-04-28 Briqueterie De Breuil Appareil de manutention pour produits perforés
FR2125218A1 (it) * 1971-02-19 1972-09-29 Chastagner Philippe
CH578480A5 (en) * 1975-04-11 1976-08-13 Stierli Othmar Load handling tackle - has pressure spring between pivoting arm and A-frame and eye with tension spring
DE3341351A1 (de) * 1983-11-15 1985-05-23 Alfred 5609 Hückeswagen Quaas Lastaufnahmevorrichtung sowie ihre verwendung in einer hebevorrichtung
US4708574A (en) * 1985-07-05 1987-11-24 D. W. Zimmerman Mfg., Inc. Apparatus for handling objects
DE8814900U1 (it) * 1988-11-30 1989-02-02 Lemm, Dieter, 4050 Moenchengladbach, De

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0863098A3 (de) * 1997-03-04 1999-07-14 Focke & Co. (GmbH & Co.) Vorrichtung zum Handhaben von Bobinen
US6425731B2 (en) 1997-03-04 2002-07-30 Focke & Co. (Gmbh & Co.) Apparatus for handling reels
EP0943574A2 (en) * 1998-03-20 1999-09-22 SCAGLIA S.p.A. Device to automatically attach a bobbin-bearing shaft to a mandrel of a machine
EP0943574A3 (en) * 1998-03-20 1999-11-10 SCAGLIA S.p.A. Device to automatically attach a bobbin-bearing shaft to a mandrel of a machine
US6116669A (en) * 1998-03-20 2000-09-12 Scaglia Spa Device to automatically attach a bobbin-bearing shaft to a mandrel of a machine
US6619711B2 (en) * 1998-03-20 2003-09-16 Scaglia Spa Device to automatically attach a bobbin-bearing shaft to a mandrel of a machine
US6733058B1 (en) * 1999-09-20 2004-05-11 Himecs Corp. Winding roll lifting device with adjustable supporting arm and chuck member
WO2022130428A1 (en) * 2020-12-14 2022-06-23 Futura S.P.A. Plant and method for the movement of cardboard cores

Also Published As

Publication number Publication date
ITMI921024A0 (it) 1992-04-30
IT1255110B (it) 1995-10-20
ITMI921024A1 (it) 1993-10-30

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