WO1990003448A1 - Procede et dispositif d'etirage du cuir - Google Patents

Procede et dispositif d'etirage du cuir Download PDF

Info

Publication number
WO1990003448A1
WO1990003448A1 PCT/EP1989/000998 EP8900998W WO9003448A1 WO 1990003448 A1 WO1990003448 A1 WO 1990003448A1 EP 8900998 W EP8900998 W EP 8900998W WO 9003448 A1 WO9003448 A1 WO 9003448A1
Authority
WO
WIPO (PCT)
Prior art keywords
leather
stretching
membrane
piece
surface layer
Prior art date
Application number
PCT/EP1989/000998
Other languages
German (de)
English (en)
Inventor
Jiri Dokoupil
Original Assignee
Jiri Dokoupil
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 Jiri Dokoupil filed Critical Jiri Dokoupil
Priority to US08/061,280 priority Critical patent/US5291759A/en
Priority to JP50963189A priority patent/JPH05500693A/ja
Priority to BR898907630A priority patent/BR8907630A/pt
Priority to KR1019900701126A priority patent/KR900702055A/ko
Priority to AT89910848T priority patent/ATE90396T1/de
Publication of WO1990003448A1 publication Critical patent/WO1990003448A1/fr

Links

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
    • C14B1/26—Leather tensioning or stretching frames; Stretching-machines; Setting-out boards; Pasting boards
    • 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
    • C14B1/58—Drying

Definitions

  • the invention relates to a method for stretching leather and similar flat materials, e.g. Skins, furs, but possibly also foil cuts and the like.
  • the piece of leather is brought to rest on a support surface which is easy on the leather to slide on; b) the leather piece is acted upon with at least a part of the support surface distributed in the direction against the support surface acting pressure forces; c) for stretching the leather under sliding relative to the support surface, at least approximately tangentially with respect to a leather surface and at least approximately all-sided stretching forces directed towards the edge of the leather piece are brought into effect on at least part of the second surface of the leather piece.
  • the invention is concerned with the implementation of further processing functions on the leather in connection with the stretch processing. This includes the combination of the
  • Such a treatment device is preferably carried out in such a way that the support member forming the support surface consists at least partially of highly heat-conducting material, preferably metal, and is operatively connected to a conduction or convection heating device.
  • a particularly important continuation of the task of the invention also aims at a combination of different work functions, namely that of stretching with drying.
  • the associated solution is determined by the fact that a gap space accommodating the leather piece is formed between the support surface and the stretching tool and is connected to a suction device.
  • a gap space accommodating the leather piece is formed between the support surface and the stretching tool and is connected to a suction device.
  • FIG. 3 shows a partial vertical section in an edge region of a
  • Membrane stretching tool with suction device and a supporting element with heating device, within a stretch drying machine on a larger scale
  • FIG. 4 shows a partial vertical section corresponding to FIG. 3, but with a modified design of the stretching tool and the support member
  • FIG. 5 again shows a partial vertical section corresponding to FIG. 3 for a membrane stretching tool and provided with a special work surface structure
  • Stretch drying machine with modified carrying device In the stretching machine according to FIG. 1, there is an overall plate-shaped and arranged along a horizontal plane
  • An essential component of the pressure and stretching tool ASW is an elastic stretchable membrane M1 covering the skin, which can be erected by means of a stretching drive device DAV maintenance of the pressure forces Pa in the normal direction to your
  • the Dehn drive device DAV comprises a plurality of piston-cylinder units DZ arranged parallel to the membrane plane and distributed over the membrane circumference, the piston rods of which are fastened with rod heads SK edge of the membrane.
  • Such an arrangement is known per se from DE-OS 30 10 003 and therefore requires no further illustration and explanation here.
  • a conduction heating device HV is arranged on the underside of the support member TO1, e.g. in the
  • Supporting element is made considerably easier or even made possible because, on the one hand, in the area of rigid solids - in contrast to the soft-flexible materials required for a membrane, suitable thermal conductivity values and heat transfer values are available and, on the other hand, there is no need to consider expansion properties. So overall an intense
  • thermal connection between the heater and the leather can be achieved.
  • a convection heater may also be used.
  • a gaseous heating medium is circulated through the gap accommodating the leather.
  • the support member TO is provided with a surface layer OST which forms the contact surface AF and is made of material which is highly slidable with respect to the leather.
  • the surface layer preferably consists of a highly slidable plastic, in particular tetrafluoroethylene.
  • the surface layer can also be provided with a fiber reinforcement. This favors a substantial further training of the surface layer
  • OSM provided a pressure sensitive adhesive layer.
  • a permeable membrane M2 with connection to a suction device is similar to FIG. 3
  • the pore structure is contained in an elastically stretchable membrane surface layer OSM, which is releasably connected to a membrane base body GKM, to be precise - as with the support organ surface layer OST - by means of an adhesive layer HK.
  • a Velcro fastener arrangement KV may also be used, as shown in FIG. 5 - there for example without a permeable membrane structure and suction device - for the detachable fastening of a surface layer provided with toothing-like structure Z is indicated in the area of the membrane working surface AO.
  • Such a surface structure enables a positive transfer of the stretching forces to the leather and thus a particularly intensive stretching effect.

Abstract

L'étirage du cuir et des matériaux similaires au moyen de deux membranes élastiques pressées l'une contre l'autre par dépression et mutuellement étanches en leur extrémité et l'allongement des deux membranes avec entraînement par frottement du cuir tendu entre ces membranes nécessitent que chaque membrane comporte un dispositif d'allongement à action répartie sur l'extrémité de la membrane. L'invention a par ailleurs pour objet l'établissement d'un procédé d'étirage permettant d'obtenir un résultat de même qualité sans l'opération relativement difficile d'allongement des deux surfaces du cuir. L'invention permet d'atteindre cet objectif grâce aux caractéristiques suivantes: a) une partie au moins d'une première surface d'une pièce de cuir est disposée sur une surface d'appui assurant au cuir un glissement suffisant; b) la pièce de cuir est soumise à des forces de pression distribuées sur une partie au moins de la surface d'appui et s'exerçant dans la direction opposée à cette surface; c) pour l'étirage du cuir avec un glissement par rapport à la surface d'appui, on applique des forces d'étirement s'exerçant sur une partie au moins de la deuxième surface de la pièce de cuir et appliquées de manière au moins approximativement tangentielle par rapport à une surface du cuir et au moins approximativement sur tous les côtés vers l'extrémité de la pièce de cuir.
PCT/EP1989/000998 1988-09-29 1989-08-25 Procede et dispositif d'etirage du cuir WO1990003448A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US08/061,280 US5291759A (en) 1988-09-29 1989-08-25 Process and equipment for stretching of leather
JP50963189A JPH05500693A (ja) 1989-08-25 1989-08-25 装飾タイル
BR898907630A BR8907630A (pt) 1988-09-29 1989-08-25 Processo e instalacao para o esticamento de couro
KR1019900701126A KR900702055A (ko) 1988-09-29 1989-08-25 가죽신장(伸張)을 위한 처리방법 및 그 장치
AT89910848T ATE90396T1 (de) 1988-09-29 1989-08-25 Verfahren und einrichtung zum strecken von leder.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3833068A DE3833068A1 (de) 1988-09-29 1988-09-29 Verfahren und einrichtung zum strecken von leder
DEP3833068.7 1988-09-29

Publications (1)

Publication Number Publication Date
WO1990003448A1 true WO1990003448A1 (fr) 1990-04-05

Family

ID=6363978

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1989/000998 WO1990003448A1 (fr) 1988-09-29 1989-08-25 Procede et dispositif d'etirage du cuir

Country Status (12)

Country Link
EP (2) EP0365068B1 (fr)
JP (1) JPH04500979A (fr)
KR (1) KR900702055A (fr)
CN (1) CN1020474C (fr)
BR (1) BR8907630A (fr)
CZ (1) CZ281561B6 (fr)
DE (1) DE3833068A1 (fr)
ES (1) ES2037402T3 (fr)
GR (1) GR3007294T3 (fr)
PT (1) PT91831B (fr)
WO (1) WO1990003448A1 (fr)
YU (1) YU189189A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3928095A1 (de) * 1989-08-25 1991-02-28 Dynavac Gmbh Verfahren und einrichtung zum bearbeiten von weichflexiblen flachmaterialstuecken
DE4131262A1 (de) * 1991-09-20 1993-04-01 Dokoupil Jiri Elastische membrane zur streckung und trocknung von leder
AUPO598197A0 (en) * 1997-04-03 1997-05-01 Future Tan Pty Ltd Treatment of hides
AUPO871397A0 (en) * 1997-08-22 1997-09-18 Future Tan Pty Ltd Improved treatment of hides
DE19826181A1 (de) * 1998-06-14 1999-12-16 Bohumil Stupecky Vorrichtung zum Schlicken, Strecken und Trocknen von Leder und ähnlichen Flachmaterialien wie Fellen, Pelzen u. dgl.
ITVI20010220A1 (it) * 2001-10-23 2003-04-23 Cartigliano Off Spa Metodo e linea per l'allargamento continuo di pelli ed altri prodottisimilari
DK177012B1 (da) * 2003-09-19 2010-12-06 Dansk Mink Papir As Fremgangsmåde og tanemaskine til ikke-destruktiv udstrækning og fastgørelse (taning) af skind på et udspilningselement/tane
CN101830424B (zh) * 2010-04-30 2011-11-23 重庆平伟科技(集团)有限公司 一种实现连续生产的真空吸附成型方法
CN102492784B (zh) * 2011-12-30 2015-02-04 福建宝利特集团有限公司 真空吸花打样机
CN106435049A (zh) * 2016-10-24 2017-02-22 南通思瑞机器制造有限公司 一种真空干燥机展皮机构
CN107287364B (zh) * 2017-08-22 2019-05-28 何招弟 一种鹿皮缓慢风干及鹿皮拉扯两用装置
CN114766809A (zh) * 2022-05-10 2022-07-22 湖南奥郎儿童用品有限公司 一种轻便的书包及其制造设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE510128C (de) * 1929-01-23 1930-10-16 Walter Degel Spannvorrichtung fuer Felle, Haeute und Rohleder
CH393620A (de) * 1961-02-18 1965-06-15 Turato Luigi Vorrichtung zum Trocknen und Glätten von Leder
FR1407169A (fr) * 1964-06-16 1965-07-30 Vide Soc Gen Du Perfectionnements aux dispositifs de séchage
DE1296736B (de) * 1962-02-09 1969-06-04 Cartigliano Off Spa Vakuumtrockenvorrichtung fuer Leder od. dgl.
FR2096351A5 (fr) * 1970-06-15 1972-02-11 Turner Maschf
EP0036183A2 (fr) * 1980-03-15 1981-09-23 Jiri Dipl. Ing. Dokoupil Procédé et dispositif pour l'étendage et le séchage de pièces de cuir, de peaux et de matières semblables
DE3431353A1 (de) * 1984-08-25 1986-03-06 Helmuth 2058 Lauenburg Schmoock Verfahren und vorrichtung zum vergroessern von flaechenerstreckungen eines dehnbaren materials

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE510128C (de) * 1929-01-23 1930-10-16 Walter Degel Spannvorrichtung fuer Felle, Haeute und Rohleder
CH393620A (de) * 1961-02-18 1965-06-15 Turato Luigi Vorrichtung zum Trocknen und Glätten von Leder
DE1296736B (de) * 1962-02-09 1969-06-04 Cartigliano Off Spa Vakuumtrockenvorrichtung fuer Leder od. dgl.
FR1407169A (fr) * 1964-06-16 1965-07-30 Vide Soc Gen Du Perfectionnements aux dispositifs de séchage
FR2096351A5 (fr) * 1970-06-15 1972-02-11 Turner Maschf
EP0036183A2 (fr) * 1980-03-15 1981-09-23 Jiri Dipl. Ing. Dokoupil Procédé et dispositif pour l'étendage et le séchage de pièces de cuir, de peaux et de matières semblables
DE3431353A1 (de) * 1984-08-25 1986-03-06 Helmuth 2058 Lauenburg Schmoock Verfahren und vorrichtung zum vergroessern von flaechenerstreckungen eines dehnbaren materials

Also Published As

Publication number Publication date
PT91831B (pt) 1995-07-18
YU189189A (en) 1990-12-31
CN1020474C (zh) 1993-05-05
JPH04500979A (ja) 1992-02-20
GR3007294T3 (fr) 1993-07-30
DE3833068A1 (de) 1990-04-05
DE3833068C2 (fr) 1992-06-11
CN1041393A (zh) 1990-04-18
KR900702055A (ko) 1990-12-05
EP0365068A1 (fr) 1990-04-25
EP0436600B1 (fr) 1993-06-09
CZ281561B6 (cs) 1996-11-13
ES2037402T3 (es) 1993-06-16
CZ551789A3 (en) 1996-06-12
EP0365068B1 (fr) 1992-12-09
BR8907630A (pt) 1991-07-30
PT91831A (pt) 1990-03-30
EP0436600A1 (fr) 1991-07-17

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