EP2154255B1 - Maschine für die Zurichtung von Naturfellen, Leder und Ähnlichem über Walzen, betrieben mit der sogenannten "Synchronmethode" - Google Patents

Maschine für die Zurichtung von Naturfellen, Leder und Ähnlichem über Walzen, betrieben mit der sogenannten "Synchronmethode" Download PDF

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Publication number
EP2154255B1
EP2154255B1 EP09162652A EP09162652A EP2154255B1 EP 2154255 B1 EP2154255 B1 EP 2154255B1 EP 09162652 A EP09162652 A EP 09162652A EP 09162652 A EP09162652 A EP 09162652A EP 2154255 B1 EP2154255 B1 EP 2154255B1
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EP
European Patent Office
Prior art keywords
machine
roller
cylinder
leather
skins
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EP09162652A
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English (en)
French (fr)
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EP2154255A1 (de
Inventor
Gianni Maitan
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GE MA TA SpA
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GE MA TA SpA
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Publication of EP2154255A1 publication Critical patent/EP2154255A1/de
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B1/00—Manufacture of leather; Machines or devices therefor
    • C14B1/44—Mechanical treatment of leather surfaces
    • C14B1/56—Ornamenting, producing designs, embossing

Definitions

  • the present finding concerns the manufacture of a machine for roller finishing natural skins, leather and the like, functioning with the so-called "synchro" method; the finding also concerns the use of a gravure cylinder, of the per se known type, to be used in the aforementioned machine.
  • roller spreading machines are particularly used, commonly called “coating machines", in which the skin is conveyed by a lower roller or belt and where a opposing upper spreading roller, made up of a steel gravure cylinder, pressing down on the surface of the skin, countered by the underlying cylinder or belt, deposits a film of liquid product, previously distributed on the surface of the aforementioned upper roller, through a doctor blade, onto the aforementioned surface.
  • a perfect outcome of the finishing operation of the skins apart from depending on a regular and constant pulling of the product in the spreading area, i.e., the area comprised between the upper roller and the underlying lower roller or conveyer belt, mainly depends on the spreading or "coating" action, i.e., the depositing action of liquid product on the entire surface of the material to be treated.
  • the chemical product held inside the incisions, commonly called “pits" and formed on the surface of the spreading cylinder, is released either only at the surface areas of the skin, leaving out the cavities and the nicks of the skin itself, when a covering process is carried out or only on the incisions, depressions, cavities and scratches when a filling operation is carried out.
  • the purpose of the present finding is to make a machine for roller finishing skins, leather and the like, in which the gravure cylinder for spreading, which rotates in synchrony, or rather with a direction in agreement with the advancing of the skin, positioned above the lower roller or conveyer belt, uniformly deposits the chemical product on the entire surface of the skin, on both the ridges and depressions, and on the cavities and nicks.
  • an upper spreading roller consisting of a metal cylinder, the surface of which is covered by a highly deformable elastic material, such as an elastomer or natural or synthetic rubbers, which enters into contact with the entire surface of the skin, adapting to its entire profile, or rather with the flat part, with the possible protrusions and also with the depressions, the incisions, the nicks and concavities.
  • a highly deformable elastic material such as an elastomer or natural or synthetic rubbers
  • the upper roller or gravure cylinder of the finishing machine wholly indicated with the reference numeral 1 and which operates "synchro" or “direct” mode, comprises a metal drum 2 covered, on its outer part, by a layer of highly deformable elastic material 3, the incised surface 4 of which conveys the liquid covering product, such as dye or fixatives "C", from the doctor blade "R”, up to the depositing on the surface "S2" of the skin "P", supported and pulled by an underlying belt 5 or roller 6.
  • the surface "S1" of the gravure cylinder deforms and exactly covers the profile of the surface "S2" of the skin "P", or rather complete contact between the two aforementioned surfaces is obtained, in both the protruding areas "H", and the concavity areas "K", all to obtain a regular and homogeneous deposit of chemical product. It is also possible to foresee that the outer surface of the cylinder be only partially incised. Moreover, it is possible to foresee that the outer surface of the gravure cylinder prints a drawing.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Soil Working Implements (AREA)

Claims (12)

  1. MASCHINE ZUM ZURICHTEN MIT WALZEN VON NATÜRLICHEN HÄUTEN, LEDER UND DERGLEICHEN, die auch als "Auftragmaschine" oder "Streichmaschine" bezeichnet wird, bei der die Häute (P) von einer unteren Walze (6) oder von einem Band (5) befördert werden und bei der eine aus einem Tiefdruckzylinder (1) bestehende obere Auftragwalze, die auf die Oberfläche (S2) der Haut niederdrückt und welcher der darunterliegende Zylinder bzw. das darunterliegende Band entgegenwirkt, eine dünne Schicht aus einem flüssigen Produkt (C) auf die oben genannte Oberfläche aufträgt, das zuvor durch eine Rakel (R) auf der Oberfläche (S1) der oben genannten oberen Walze verteilt wurde,
    wobei diese Maschine dadurch gekennzeichnet ist, dass
    die obere Auftragwalze bzw. der obere Tiefdruckzylinder (1), die bzw. der im Gleichlaufbetrieb arbeitet, d.h. mit der in einer mit dem Vorrücken der Haut übereinstimmenden Richtung drehenden oben genannten Auftragwalze, eine metallische zylindrische Walze (2), deren äußerer Teil mit einer Schicht aus einem elastischen Material (3) mit einer hohen Elastizität und Verformbarkeit bedeckt ist, deren Oberfläche (4) eingekerbt ist.
  2. MASCHINE ZUM ZURICHTEN MIT WALZEN VON NATÜRLICHEN HÄUTEN, LEDER UND DERGLEICHEN nach Anspruch 1, dadurch gekennzeichnet, dass die hochgradig verformbare Außenschicht (3) des Tiefdruckzylinders (1) eine Shore-A-Härte kleiner oder gleich 40 aufweist.
  3. MASCHINE ZUM ZURICHTEN MIT WALZEN VON NATÜRLICHEN HÄUTEN, LEDER UND DERGLEICHEN nach Anspruch 1, dadurch gekennzeichnet, dass die Außenschicht (3) des Tiefdruckzylinders (2) mit einem Elastomer bergestellt ist.
  4. MASCHINE ZUM ZURICHTEN MIT WALZEN VON NATÜRLICHEN HÄUTEN LEDER UND DERGLEICHEN nach Anspruch 1, dadurch gekennzeichnet, dass die Außenschicht (3) des Tiefdruckzylinders (2) aus Naturkautschuk besteht.
  5. MASCHINE ZUM ZURICHTEN MIT WALZEN VON NATÜRLICHEN HÄUTEN, LEDER UND DERGLEICHEN nach Anspruch 1, dadurch gekennzeichnet, dass die Außenschicht (3) des Tiefdruckzylinders (2) aus Kunstkautschuk besteht.
  6. MASCHINE NACH ANSPRUCH 1, dadurch gekennzeichnet, dass die äußere Oberfläche des Zylinders nur teilweise eingekerbt ist.
  7. MASCHINE NACH ANSPRUCH 6, dadurch gekennzeichnet, das die äußere Oberfläche des Zylinders eine Zeichnung druckt.
  8. VERWENDUNG EINES TIEFDRUCKZYLINDERS, bestehend aus einer metallischen zylindrischen Walze (2), die auf ihrem äußeren Teil mit einer Schicht aus einem material (3) mit hoher Elastizität und Verformbarkeit bedeckt ist, auf der sich der eingekerbte Teil (4) befindet, in einer unter Gleichlaufbedingungen arbeitenden Maschine zum Zurichten mit Walzen von natürlichen Häuten, Leder und dergleichen nach Anspruch 1.
  9. VERWENDUNG nach Anspruch 8, dadurch gekennzeichnet, dass sie vorsieht, dass die Außenschicht aus hochgradig elastischem und verformbarem Material (3), die sich auf dem äußeren Teil der metallischen zylindrischen Walze (2) befindet, aus einem Material mit einer Shore-A-Härte kleiner oder gleich 40 besteht.
  10. VERWENDUNG nach Anspruch 9, dadurch gekennzeichnet, das sie vorsieht, dass die Außenschicht (3) des Zylinders mit einem Elastomer hergestellt ist.
  11. VERWENDUNG nach Anspruch 9, dadurch gekennzeichnet, dass sie versieht, dass die Außenschicht (3) des Zylinders (1) aus Naturkautschuk besteht.
  12. VERWENDUNG nach Anspruch 9, dadurch gekennzeichnet, dass sie vorsieht, dass die Außenschicht (3) des Zylinders (1) aus Kunstkautschuk besteht.
EP09162652A 2008-08-05 2009-06-15 Maschine für die Zurichtung von Naturfellen, Leder und Ähnlichem über Walzen, betrieben mit der sogenannten "Synchronmethode" Active EP2154255B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITVI2008A000187A IT1390925B1 (it) 2008-08-05 2008-08-05 Macchina per la rifinizione a rullo di pelli naturali, cuoio e simili, funzionante con il metodo cosiddetto "sincro".

Publications (2)

Publication Number Publication Date
EP2154255A1 EP2154255A1 (de) 2010-02-17
EP2154255B1 true EP2154255B1 (de) 2010-12-22

Family

ID=41404364

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09162652A Active EP2154255B1 (de) 2008-08-05 2009-06-15 Maschine für die Zurichtung von Naturfellen, Leder und Ähnlichem über Walzen, betrieben mit der sogenannten "Synchronmethode"

Country Status (5)

Country Link
EP (1) EP2154255B1 (de)
AT (1) ATE492654T1 (de)
DE (1) DE602009000461D1 (de)
ES (1) ES2358237T3 (de)
IT (1) IT1390925B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3103887B1 (de) * 2015-06-11 2019-03-27 GE.MA.TA. S.p.A. Maschine für die kontinuierliche lederfärbung
EP3150728A1 (de) 2015-10-02 2017-04-05 GE.MA.TA. S.p.A. Maschine zur rollenzurichtung von fellen und leder
ITUA20161537A1 (it) * 2016-03-10 2017-09-10 Ge Ma Ta Spa Linea per rifinire pelli che avanzano in modo continuo ed automatico per l'intero ciclo di rifinizione
IT201700037050A1 (it) * 2017-04-04 2018-10-04 Ge Ma Ta Spa Apparato per la deposizione in continuo di due differenti sostanze chimiche su una pelle e metodo per la deposizione in continuo
IT201800007456A1 (it) * 2018-07-24 2020-01-24 Macchina per la rifinizione di superfici laminari flessibili di rivestimento di oggetti

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT387983B (de) * 1985-07-17 1989-04-10 Schmidt Alexander Gmbh Durchlaufdruck- und buegelmaschine, insbesondere fuer leder
AT8762U1 (de) * 2005-05-27 2006-12-15 Schaefer Philipp Verfahren und vorrichtung zum gestalten der narbenseite eines leders sowie ein an der narbenseite mit einer zurichtung versehenes leder

Also Published As

Publication number Publication date
ES2358237T3 (es) 2011-05-06
EP2154255A1 (de) 2010-02-17
ITVI20080187A1 (it) 2010-02-06
DE602009000461D1 (de) 2011-02-03
ATE492654T1 (de) 2011-01-15
IT1390925B1 (it) 2011-10-19

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