EP3309096A1 - Vorrichtung zum entfernen eines metallbandes von einer rolle - Google Patents

Vorrichtung zum entfernen eines metallbandes von einer rolle Download PDF

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Publication number
EP3309096A1
EP3309096A1 EP17195723.6A EP17195723A EP3309096A1 EP 3309096 A1 EP3309096 A1 EP 3309096A1 EP 17195723 A EP17195723 A EP 17195723A EP 3309096 A1 EP3309096 A1 EP 3309096A1
Authority
EP
European Patent Office
Prior art keywords
strap
heating head
support apparatus
heating
movement
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
EP17195723.6A
Other languages
English (en)
French (fr)
Other versions
EP3309096B1 (de
Inventor
Gian Mario FOPPA VINCENZINI
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.)
Asservimentipresse Srl
Original Assignee
Asservimentipresse 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 Asservimentipresse Srl filed Critical Asservimentipresse Srl
Priority to PL17195723T priority Critical patent/PL3309096T3/pl
Publication of EP3309096A1 publication Critical patent/EP3309096A1/de
Application granted granted Critical
Publication of EP3309096B1 publication Critical patent/EP3309096B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/105—Opening of web rolls; Removing damaged outer layers; Detecting the leading end of a closed web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/28—Wound package of webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/412—Roll
    • B65H2301/4124—Outer end attachment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/415—Unwinding
    • B65H2301/41505—Preparing unwinding process
    • B65H2301/41508—Preparing unwinding process the web roll being in the unwinding support / unwinding location
    • B65H2301/41509—Preparing unwinding process the web roll being in the unwinding support / unwinding location opening web roll and related steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/511—Processing surface of handled material upon transport or guiding thereof, e.g. cleaning
    • B65H2301/5112—Processing surface of handled material upon transport or guiding thereof, e.g. cleaning removing material from outer surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/514—Modifying physical properties
    • B65H2301/5143—Warming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/70—Electrical or magnetic properties, e.g. electric power or current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/171—Physical features of handled article or web
    • B65H2701/1714—Magnetic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/173—Metal

Definitions

  • the present invention relates to a device for removing a metal strap from a sheet coil according to the preamble of the main claim.
  • a sheet coil is obtained by winding a sheet in the form of a strip around itself. As the sheet stores elastic energy during the winding step the coil tends to open.
  • a plurality of straps (bands of metal material of different thickness and length) are wrapped around the coil.
  • each strap is positioned circumferentially around an outer surface of the sheet, and transversely on the end faces of the coil.
  • These transverse straps are also positioned longitudinally inside a central hole of the same coil and on the outer surface of the coil orthogonally to the circumferential straps. The straps thus surround the coil internally and externally and hold it closed upon itself.
  • each metal strap When the sheet is to be used, it is necessary to cut each metal strap to release the same sheet.
  • This cut is carried out in different ways.
  • the cut can be carried out manually using special scissors or similar tools and or even a hammer and chisel.
  • this process is very dangerous for the operator as the head of the coil, i.e. the start of the strip wound around itself (in a spiral) tends to spring towards the outside of the coil as soon as the strap is cut. This occurs due to the elasticity of the sheet, i.e. the elastic energy stored during the winding step. This outward movement of the head of the coil can be dangerous for the operator carrying out cutting of the straps.
  • Document GB 2242417 A discloses a device for removing a thermoplastic adhesive tape from a coil of sheet material.
  • the device is provided with a heating element capable of causing breakage of the adhesive tape.
  • the heating element is fixed relative to the adhesive tape and, consequently, relative to the coil of sheet material.
  • Document WO 85/01532 A1 discloses a method and a device for the magnetic heating of a coil of sheet material.
  • the device is hinged on a support element to move away from or towards the coil, so that it can carry out a movement only in one direction relative to this coil.
  • document EP 0438130 A2 discloses a device for electromagnetic induction heating for straightening sheet material. However, this device is not provided with specific means for movement of the frames that form the heating elements.
  • the object of the present invention is to provide a device for removing a metal strap from a sheet coil that is improved over prior art solutions.
  • an object of the present invention is to provide a device of the aforesaid type that can be used by an operator who remains at a distance from the sheet coil, that allows breakage of each strap closing this coil and that is in any case extremely safe for the operator carrying out the cutting operation of each strap.
  • Another object is to provide a device of the aforesaid type that does not require the introduction of electricity in the strap (and consequently in the sheet coil).
  • a further object is to provide a device of the aforesaid type that is compact and easy to position on the side of a sheet coil.
  • a sheet coil is generally indicated with reference number 1.
  • the coil 1 is provided with a plurality of layers of one-piece metal sheet superimposed in the form of a spiral and held closed by means of a plurality of metal straps 3 and 4.
  • each strap 3 is a transverse strap that surrounds the end parts of the coil 1 and is arranged on the outer surface 5 of this coil 1, parallel to the longitudinal axis of the same coil 1 and inside a hole 6 of this coil 1.
  • the strap 4, or circumferential strap is instead arranged on the surface 5 of the coil 1, around it.
  • a plurality of straps 4 is arranged on the surface 5 of the coil 1.
  • the sheet coil 1 is provided with a head 6 and, in proximity of this head 6, a space 7 is provided between the coil 1 and each strap 4 arranged circumferentially on the surface 5 of this coil 1.
  • a removing device 10 is designed to operate in the space 7, said removing device 10 being configured to carry out the separation of the strap 4 into two parts.
  • the removing device 10 comprises a melting heating element 11 that is defined by an electric resistor (acting as inductor) in which the electric current is made to pass.
  • the melting heating element or inductor when passed through by the electric current, generates an oscillating magnetic field.
  • the inductor 11 is taken in proximity of the strap 4, the current that passes through the inductor 11 causes or induces a current in the strap 4 through the Joule effect. This causes heating of the strap 4 and therefore its localized melting, i.e. melting thereof in a portion 13 positioned in front of the melting heating element or inductor 11.
  • the melting element or inductor 11 is taken to a distance comprised between 0.5 and 3 mm to be effective in the action on the strap 4. Moreover, in order to obtain correct heating and, consequently, breakage of the strap 4, the heating induced on the strap 4 is carried out on a portion 13 having a length ranging between 8 mm and 12 mm.
  • the melting element or inductor 11 can also be taken in proximity of portions of the straps 4 that are not positioned at the head 6 of the sheet coil 1, i.e., that are not positioned at the aforesaid space 7.
  • the removing device 10 comprises, in general terms, a current generator 20, for example solid-state, of compact size and supplied via normal connection to the electricity network 21 or via a battery. Operation of the current generator 20 is controlled via a microprocessor control unit 23.
  • the current generator 20 is connected to at least one heating or melting element 11.
  • Figure 5 shows two melting elements 11 arranged on both sides of the current generator 20 and designed to operate both on the left side and on the right side of this current generator 20.
  • the current generator 20 contained in a power unit 24, known per se, is connected to a heating member 25 of the melting element 11 and is activated by a drive member 26, which can be a pedal drive.
  • a drive member 26 which can be a pedal drive.
  • other types of drives of the current generator 20 are possible for the person skilled in the art.
  • the removing device 10 comprises a heating head 30 of the melting element or inductor 11.
  • the heating head 30 comprises a body 30A supported by a support apparatus 31. Between the heating head 30 and the support apparatus 31 there is interposed a connection element 32.
  • the connection element 32 consists of a flat structure sliding on a base 33.
  • at least one actuator cylinder 34 which can be of hydraulic, pneumatic or electrical type, is operatively associated with the connection element 32.
  • the heating head 30 is movable and tiltable relative to the support apparatus 31 and, consequently, relative to each strap 3 or 4.
  • the removing device 10 is in fact provided with manual movement and adjustment means, which comprise, for example, micrometer screws 36, or motorized movement and adjustment means, which comprise the aforesaid actuator cylinders 34 with respective stepper motors (not shown), interposed between the heating head 30 and the support apparatus 31 to carry out movement of this heating head 30 relative to this support apparatus 31.
  • manual movement and adjustment means which comprise, for example, micrometer screws 36, or motorized movement and adjustment means, which comprise the aforesaid actuator cylinders 34 with respective stepper motors (not shown)
  • micrometer screws 36 interposed between the body 30A of the heating head 30 and the flat structure 32 of the support apparatus 31.
  • Movement of the heating head 30, adjusted in a precise manner, allows optimal positioning of the heating or melting element 11 in the operating area on the strap 3 or 4. Movement of the heating head 30 is therefore adjustable along horizontal axes orthogonal to one another, and can be carried out by means of a tilting of the heating head 30 in a vertical direction. It is also possible to rotate the heating head 30 by a predefined angle, preferably equal to 360°.
  • the heating head 30 comprises a metal connector or lead 37 to the end of which there is welded the inductor 11 generating the electromagnetic field. Above the connector 37 there is preferably a pilot light provided that indicates operation of the heating head 30. On the back of the aforesaid heating head 30 there is provided the output of a power supply cable 40 connected to the current generator 20.
  • the lead 37 can have a variable length and comprise pipes 38a, 38b arranged parallel to each other containing resistive metal wires designed to define the inductor 11 projecting from the lead 37.
  • Figure 11 shows, by way of non-limiting example, some components of the movement and adjustment means associable with the heating head 30, with the support apparatus 31 and with the respective connection element 32.
  • the heating head 30, the support apparatus 31 and/or the respective connection element 32 are arranged to carry out a plurality of distinct and independent movements relative to the coil 1 on which the straps 3 and 4 are positioned.
  • the heating head 30 can carry out a rotation movement about a first vertical axis A passing through said heating head 30.
  • the connection element 32 can carry out a rotation movement about a second horizontal axis B passing through this connection element 32.
  • the assembly formed by the heating head 30 and by the connection element 32 can carry out a translation movement relative to the support apparatus 31 along a third horizontal axis C passing through this support apparatus 31.
  • the assembly formed by the heating head 30 and by the connection element 32 can also carry out a rotation movement relative to the support apparatus 31 about a fourth vertical axis D passing through this support apparatus 31.
  • the assembly formed by the heating head 30 and by the connection element 32 can carry out a translation movement relative to the support apparatus 31 along a fifth horizontal axis E passing through this support apparatus 31 and perpendicular to the third horizontal axis C.
  • the combination of the aforesaid movements, and the operation of the heating head 30, can be carried out manually, using the related selectors and push buttons positioned on a control panel 35 of the removing device 10, or by means of a semi-automatic or automatic cycle.
  • the heating head 30 is cooled, by means of a fluid coolant, by a cooling device 22.
  • the cooling is also provided for the lead 38.
  • the lead 38 is preferably welded to the body 30A of the heating head 30.
  • the inductor 11 used for the heating head 30 can have powers ranging between 2 kW and 4.5 kW.
  • the specific current intensities can be calculated as a function of the section of the strap to be cut. By means of a current intensity of the order of 13A/16A it is possible to melt a normal strap 3 or 4 used to hold a closed sheet coil.
  • the heating head 30 is subject to motor means (hydraulic or pneumatic, not shown) or is movable manually in order to be moved towards the strap 3 or 4 when this requires to be cut.
  • the heating head 30 when the heating head 30 is moved towards the strap, the current that passes through the resistor acting as inductor 11 generates an oscillating magnetic field that causes an induced current in the strap, overheating and therefore melting it.
  • the intrinsic tension of the sheet coil (which tends to unwind) favours complete breakage of the strap, i.e., its separation into two parts.
  • the device 10 can be used in any position of any strap, although it is preferable to use it in the space 7 between the strap 4 and the sheet coil. This facilitates the opening of the strap in a position in which this strap is not in contact with the sheet and is particularly subject to the force F of the strip that tends to unwind.

Landscapes

  • General Induction Heating (AREA)
  • Replacement Of Web Rolls (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Cleaning In General (AREA)
EP17195723.6A 2016-10-13 2017-10-10 Vorrichtung zum entfernen eines metallbandes von einer rolle Active EP3309096B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17195723T PL3309096T3 (pl) 2016-10-13 2017-10-10 Urządzenie do usuwania metalowego paska ze zwoju arkusza

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102016000102867A IT201600102867A1 (it) 2016-10-13 2016-10-13 Dispositivo per separare una reggia da un rotolo di lamiera

Publications (2)

Publication Number Publication Date
EP3309096A1 true EP3309096A1 (de) 2018-04-18
EP3309096B1 EP3309096B1 (de) 2019-05-22

Family

ID=58609671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17195723.6A Active EP3309096B1 (de) 2016-10-13 2017-10-10 Vorrichtung zum entfernen eines metallbandes von einer rolle

Country Status (5)

Country Link
EP (1) EP3309096B1 (de)
ES (1) ES2742882T3 (de)
IT (1) IT201600102867A1 (de)
PL (1) PL3309096T3 (de)
TR (1) TR201909679T4 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800004730A1 (it) * 2018-04-19 2019-10-19 Apparecchiatura di apertura di bobine di materiale avvolto
EP3693303A3 (de) * 2019-02-07 2020-12-23 BHS Intralogistics GmbH Materialrollen-vorbereitungsanordnung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985001532A1 (en) * 1983-10-03 1985-04-11 Valmet Oy Method and device for electromagnetic heating of a roll, in particular of a calender roll, used in the manufacture of paper or of some other web-formed product
EP0438130A2 (de) * 1990-01-17 1991-07-24 Sumitomo Heavy Industries, Ltd Elektromagnetisches Induktionsheizgerät
GB2242417A (en) * 1990-03-27 1991-10-02 Gd Spa Removing tape from tail end of rolls
US5221393A (en) * 1990-10-02 1993-06-22 Feramatic Ag Tape fastener and fastening method employing same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985001532A1 (en) * 1983-10-03 1985-04-11 Valmet Oy Method and device for electromagnetic heating of a roll, in particular of a calender roll, used in the manufacture of paper or of some other web-formed product
EP0438130A2 (de) * 1990-01-17 1991-07-24 Sumitomo Heavy Industries, Ltd Elektromagnetisches Induktionsheizgerät
GB2242417A (en) * 1990-03-27 1991-10-02 Gd Spa Removing tape from tail end of rolls
US5221393A (en) * 1990-10-02 1993-06-22 Feramatic Ag Tape fastener and fastening method employing same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800004730A1 (it) * 2018-04-19 2019-10-19 Apparecchiatura di apertura di bobine di materiale avvolto
EP3693303A3 (de) * 2019-02-07 2020-12-23 BHS Intralogistics GmbH Materialrollen-vorbereitungsanordnung
US11485104B2 (en) 2019-02-07 2022-11-01 Bhs Intralogistics Gmbh Material roll preparation arrangement

Also Published As

Publication number Publication date
IT201600102867A1 (it) 2018-04-13
EP3309096B1 (de) 2019-05-22
TR201909679T4 (tr) 2019-07-22
PL3309096T3 (pl) 2019-11-29
ES2742882T3 (es) 2020-02-17

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