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EP3311965A1 - Machine de coupe pour découper des rouleaux de matériau en bande et procédé de découpé associé - Google Patents

Machine de coupe pour découper des rouleaux de matériau en bande et procédé de découpé associé Download PDF

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Publication number
EP3311965A1
EP3311965A1 EP17195028.0A EP17195028A EP3311965A1 EP 3311965 A1 EP3311965 A1 EP 3311965A1 EP 17195028 A EP17195028 A EP 17195028A EP 3311965 A1 EP3311965 A1 EP 3311965A1
Authority
EP
European Patent Office
Prior art keywords
cutting
logs
blade
blades
machine
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
EP17195028.0A
Other languages
German (de)
English (en)
Other versions
EP3311965B1 (fr
Inventor
Giovanni Bertoli Barsotti
Luca TAGLIASACCHI
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.)
Paper Converting Machine Co Italia SpA
Original Assignee
Paper Converting Machine Co Italia SpA
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 Paper Converting Machine Co Italia SpA filed Critical Paper Converting Machine Co Italia SpA
Publication of EP3311965A1 publication Critical patent/EP3311965A1/fr
Application granted granted Critical
Publication of EP3311965B1 publication Critical patent/EP3311965B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/157—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
    • B26D1/16—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable arm or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/086—Means for treating work or cutting member to facilitate cutting by vibrating, e.g. ultrasonically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D2210/00—Machines or methods used for cutting special materials
    • B26D2210/11—Machines or methods used for cutting special materials for cutting web rolls

Definitions

  • the present invention relates in general to the production of rolls of sheet material and more particularly to a cutting-off machine and a method for the cutting of logs or sticks of sheet material, in particular paper.
  • Cutting of the logs for forming rolls of smaller length is carried out with special cutting-off machines which have one or more metal or ceramic blades, of the disc type, which are made to rotate in an orbit around an axis in a cutting plane transverse to the direction of feeding of the log, or of the belt type, which are cyclically lowered onto the log to be cut.
  • Another type of cutting-off machine provides for a series of fixed flat blades against which the logs are driven in a direction perpendicular to their axes, so as to be "sliced".
  • a problem which reduces, even drastically, productivity of the cutting-off machines is overheating and the consequent deformation of the cutting blade. Since the cutting blade (in the case of belt disc blades) for performing the cutting of the log has to have a high rotation speed, during cutting, between the surface of the blade and that of the log to be cut, a high friction is generated which causes excessive overheating of the blade. Having reached a limit temperature, variable in accordance with the material and the shape of the disc of the blade, a relaxation and thermal expansion of the material of the disc occur which lead to deformation of the same disc.
  • This deformation is due to the residual tensions induced in the disc of the blade in the phase of manufacture to make its surface take on the required planarity.
  • Cutting-off machines are therefore equipped with systems aiming to lower the temperature of the blade or to control deformation thereof, as occurs in the patent EP 1609570 B1 of the same Applicant, or to ascertain the quality of the cut.
  • Yet another object of the invention is that of providing a cutting-off machine of any one of the known types, which requires minimum modifications to achieve the abovementioned results.
  • Substantially the cutting-off machine for the cutting of logs of sheet material comprises at least one cutting blade placed on a plane perpendicular to the axis of the logs, in order to perform transverse cuts over the same and produce rolls of smaller length with respect to the logs, said at least one cutting blade being associated with an ultrasonic device apt to generate a vibrating force on the blade.
  • the ultrasonic converter 22 converts the electrical energy with frequency coming from the generator 20 into mechanical vibrations with high frequency, which are transferred to the sonotrode 23, which transmits the vibratory energy to the blade 11.
  • FIGS 3 and 4 in which the same reference numerals introduced previously are used, illustrate an embodiment of the cutting-off machine wholly similar to that of Figures 1 and 2 .
  • the cutting-off machine comprises two rectilinear flat blades 11 placed in diametrically opposed positions on a rotating support 12.
  • the sonotrodes 23 are placed at the base of the blades 11.
  • a plurality of lower drive belts 30 are provided, and a corresponding plurality of opposite upper drive belts 31, placed between the plurality of blades 11.
  • a plurality of ultrasounds generators 20 are provided, connected by means of respective cables 21 to corresponding ultrasonic converters 22 and sonotrodes 23 placed at the bases of the respective blades 11.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
EP17195028.0A 2016-10-18 2017-10-05 Machine de coupe pour découper des rouleaux de matériau en bande et procédé de découpé associé Active EP3311965B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102016000104428A IT201600104428A1 (it) 2016-10-18 2016-10-18 Macchina troncatrice per il taglio di log di materiale in foglio e relativo metodo di taglio

Publications (2)

Publication Number Publication Date
EP3311965A1 true EP3311965A1 (fr) 2018-04-25
EP3311965B1 EP3311965B1 (fr) 2019-05-01

Family

ID=57960749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17195028.0A Active EP3311965B1 (fr) 2016-10-18 2017-10-05 Machine de coupe pour découper des rouleaux de matériau en bande et procédé de découpé associé

Country Status (2)

Country Link
EP (1) EP3311965B1 (fr)
IT (1) IT201600104428A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202000016024A1 (it) * 2020-07-02 2022-01-02 Paper Converting Machine Company S P A Metodo di controllo del processo di affilatura di una lama di taglio in una macchina troncatrice
EP3944925A1 (fr) * 2020-07-29 2022-02-02 Paper Converting Machine Company S.p.A Système de contrôle de la qualité de produits dans une sortie de machine de coupe
DE102023109769B3 (de) * 2023-04-18 2024-09-26 Contexo Gmbh Vorrichtung zum Einbringen eines Schlitzes in ein Werkstück

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3468203A (en) * 1966-04-15 1969-09-23 Etudes De Machines Speciales Knives
EP1075910A1 (fr) * 1999-08-10 2001-02-14 Fort James France Machine de découpe d'un rouleau de papier
US20160114494A1 (en) * 2013-05-13 2016-04-28 A O Schallinox Gmbh Method for cutting a process material under the application of ultrasonic energy as well as cutting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3468203A (en) * 1966-04-15 1969-09-23 Etudes De Machines Speciales Knives
EP1075910A1 (fr) * 1999-08-10 2001-02-14 Fort James France Machine de découpe d'un rouleau de papier
US20160114494A1 (en) * 2013-05-13 2016-04-28 A O Schallinox Gmbh Method for cutting a process material under the application of ultrasonic energy as well as cutting device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202000016024A1 (it) * 2020-07-02 2022-01-02 Paper Converting Machine Company S P A Metodo di controllo del processo di affilatura di una lama di taglio in una macchina troncatrice
WO2022002763A1 (fr) * 2020-07-02 2022-01-06 Paper Converting Machine Company S.P.A. Procédé de commande du processus d'affûtage d'une lame de coupe dans une machine de coupe
EP3944925A1 (fr) * 2020-07-29 2022-02-02 Paper Converting Machine Company S.p.A Système de contrôle de la qualité de produits dans une sortie de machine de coupe
WO2022023345A1 (fr) * 2020-07-29 2022-02-03 Paper Converting Machine Company S.P.A. Système de contrôle de la qualité de produits en sortie d'une machine de coupe
DE102023109769B3 (de) * 2023-04-18 2024-09-26 Contexo Gmbh Vorrichtung zum Einbringen eines Schlitzes in ein Werkstück

Also Published As

Publication number Publication date
EP3311965B1 (fr) 2019-05-01
IT201600104428A1 (it) 2018-04-18

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