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WO1998037245A1 - Rapidly exchangeable membrane for vacuum-stretch and/or drying machines for the leather industry - Google Patents

Rapidly exchangeable membrane for vacuum-stretch and/or drying machines for the leather industry Download PDF

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Publication number
WO1998037245A1
WO1998037245A1 PCT/DE1998/000520 DE9800520W WO9837245A1 WO 1998037245 A1 WO1998037245 A1 WO 1998037245A1 DE 9800520 W DE9800520 W DE 9800520W WO 9837245 A1 WO9837245 A1 WO 9837245A1
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WO
WIPO (PCT)
Prior art keywords
membrane
connecting element
elastic connecting
vacuum
stretch
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.)
Ceased
Application number
PCT/DE1998/000520
Other languages
German (de)
French (fr)
Inventor
Bohumil Stupecky
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1998037245A1 publication Critical patent/WO1998037245A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C14B1/26—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 quickly replaceable membrane for vacuum stretching and / or drying machines for the leather industry.
  • the conventional membrane uses a separate two-part metal bracket with an integrated bracket base, which is mechanically attached to the edge of the membrane on both sides using a large number of screws and nuts.
  • the endeavor to overcome these disadvantages by means of a two-part plastic holder, which is attached to the membrane in a disposable system has also proven to be very time-consuming. The high expenditure of time and therefore of costs has only shifted from the machine user to the membrane manufacturer. In addition, the plastic parts showed material fatigue after long use, which had a negative effect on the life of the membrane.
  • the invention has for its object to construct a membrane that significantly reduces the time, labor and cost both for the user of the machine and for the membrane manufacturer.
  • This object is achieved in that instead of the holder - be it the second separate metal holder or the two-part plastic holder firmly connected to the membrane - the assembly of which is equally time-consuming and costly, an elastic connecting part is attached to the membrane, which is the carrier of one Plate with guides for the separate bracket base. This part is attached to the membrane manufacturer by simply sticking to the membrane; possibly with increased liability insurance according to claim 2.
  • the machine user merely pushes the separate mounting foot into the guides. This process takes only a few minutes and the machine is ready for use again in no time.
  • FIG. 1 the floor plan with the membrane 1, on which the elastic connecting part 2 with plate 3 is attached, preferably glued, with two guides 3a.
  • FIG. 2 - shows, in the side view, in addition to the membrane 1, the elastic connecting part 2 with a firmly connected plate 3 with two guides 3a, the membrane holder foot 4 which is inserted into the guides 3a before the membrane is used.
  • the plate 6 with the connecting element 5 can optionally support the connection between the membrane 1 and the elastic connecting part 2.
  • the supporting connecting element can preferably be rivets, screws or bolts.
  • FIG. 3 - shows the classification of the individual elements in the page image.
  • FIG. 4 - the side image of the one-piece bracket is designed as a spring bow 7, which is firmly attached to the membrane 1 by its own pretension and carries the guide 3a for the holder foot 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

The invention relates to the rapid exchange of membranes for vacuum-stretch and/or drying machines for use in the leather industry, which saves both the machine operator and the membrane producer considerable amounts of time, labour and money. Known holding devices, which consist of at least two parts that have to be laboriously assembled by the machine operator or membrane producer, are replaced by an elastic connecting element (2), the entire surface of which is rapidly and simply glued or vulcanized onto the membrane (1) by the membrane producer. The elastic connecting element supports a plate (3) which has guide elements (3a) for the separate holding foot (4) that transmits the power transmitted by the machine. For more reliable attachment, the connecting element (2) and membrane (1) can be firmly joined to a counter plate (6). The one-piece holding device can also be embodied as an elastic bracket which by natural pretension hooks around the elastic connecting element (2) and upper surface of the membrane and on the side of the connecting element carries the guide elements (3a) for the separate holding foot (4).

Description

Schnellaustauschbare Membrane für Vakuumstreck- und/oder Trocknungsmaschinen für Lederindustrie.Quickly replaceable membrane for vacuum stretching and / or drying machines for the leather industry.

Die Erfindung betrifft eine schnell-austauschbare Membrane für Vakuumstreck- und/oder Trockungsmaschinen für die Lederindustrie.The invention relates to a quickly replaceable membrane for vacuum stretching and / or drying machines for the leather industry.

Bei der herkömmlichen Membrane wird eine separate zweiteilige Metall- halterung mit integriertem Halterfuß angewendet, welche mechanisch mittels einer Vielzahl von Schrauben und Muttern beiderseitig auf dem Membranenrand angebracht wird. Diese muß bei jedem Membranenwechsel zunächst demontiert und dann auf die neue Membrane wieder montiert werden. Dieser Vorgang erfolgt bei dem Maschinenbenutzer und erfordert einen mehrstündigen Einsatz seines technischen Personals, wobei die Maschine außer Betrieb ist. Die Bestrebung diese Nachteile durch eine zweiteilige Kunststoffhalterung , die im Einwegsystem auf die Membrane angebracht ist, zu beheben, hat sich ebenfalls als sehr zeitaufwendig gezeigt. Der hohe Zeit- und damit Kostenaufwand hat sich lediglich vom Maschiπenbenutzer zum Membranenhersteller verlagert. Außerdem zeigten die Kunststoffteile nach längerem Einsatz Materialermüdung, die sich negativ auf die Lebensdauer der Membrane auswirkte.The conventional membrane uses a separate two-part metal bracket with an integrated bracket base, which is mechanically attached to the edge of the membrane on both sides using a large number of screws and nuts. Each time the membrane is changed, it must first be dismantled and then reassembled on the new membrane. This process is carried out by the machine user and requires his technical staff to work for several hours, the machine being out of order. The endeavor to overcome these disadvantages by means of a two-part plastic holder, which is attached to the membrane in a disposable system, has also proven to be very time-consuming. The high expenditure of time and therefore of costs has only shifted from the machine user to the membrane manufacturer. In addition, the plastic parts showed material fatigue after long use, which had a negative effect on the life of the membrane.

Der Erfindung liegt die Aufgabe zugrunde, eine Membrane zu konstruieren, die den Zeit-, Arbeits- und Kostenaufwand sowohl bei dem Benutzer der Maschine als auch beim Membranenhersteller erheblich reduziert. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß anstatt der Halterung - sei es die zweiteigite separate Metallhalterung oder die mit der Membrane fest verbundene zweiteilige Kunststoffhalterung - deren Montage gleichermaßen zeit- und kostspielig ist, ein elastisches Verbindungsteil auf die Membrane angebracht wird, welches der Träger einer Platte mit Führungen für den separaten Halterungsfuß ist. Die Anbringung dieses Teiles erfolgt beim Membranenhersteller durch das einfache Ankleben auf die Membrane; ggf. mit erhöhter Haftungssicherung nach Anspruch 2. Der Maschinenbenutzer schiebt bei dem Einsatz einer derart konstruierten Membrane lediglich den separaten Halterungsfuß in die Führungen. Dieser Vorgang dauert nur einige Minuten und die Maschine ist in kürzester Zeit wieder einsatzbereit.The invention has for its object to construct a membrane that significantly reduces the time, labor and cost both for the user of the machine and for the membrane manufacturer. This object is achieved in that instead of the holder - be it the second separate metal holder or the two-part plastic holder firmly connected to the membrane - the assembly of which is equally time-consuming and costly, an elastic connecting part is attached to the membrane, which is the carrier of one Plate with guides for the separate bracket base. This part is attached to the membrane manufacturer by simply sticking to the membrane; possibly with increased liability insurance according to claim 2. When using a membrane constructed in this way, the machine user merely pushes the separate mounting foot into the guides. This process takes only a few minutes and the machine is ready for use again in no time.

Ein Ausführungsbeispiel der Erfindung ist in Zeichnungen dargestellt und wird im folgenden näher beschrieben:An embodiment of the invention is shown in drawings and is described in more detail below:

Es zeigen:Show it:

FIG. 1 - den Grundriss mit der Membrane 1, auf welcher das elastische Verbindungsteil 2 mit Platte 3 mit zwei Führungen 3a angebracht, vorzugsweise angeklebt, ist.FIG. 1 - the floor plan with the membrane 1, on which the elastic connecting part 2 with plate 3 is attached, preferably glued, with two guides 3a.

FIG. 2 - zeigt in der Seitenansicht außer der Membrane 1, des elastischen Verbindungsteils 2 mit fest verbundener Platte 3 mit zwei Führungen 3a den Membranenhalterfuß 4, der vor dem Einsatz der Membrane in die Führungen 3a eingeschoben wird. Die Platte 6 mit dem Verbindungselement 5, kann ggf. die Verbindung zwischen der Membrane 1 und dem elastischen Verbindungsteil 2 unterstützen. Bei dem unterstützenden Verbindungselement kann es sich vorzugsweise um Nieten, Schrauben oder Bolzen handeln.FIG. 2 - shows, in the side view, in addition to the membrane 1, the elastic connecting part 2 with a firmly connected plate 3 with two guides 3a, the membrane holder foot 4 which is inserted into the guides 3a before the membrane is used. The plate 6 with the connecting element 5 can optionally support the connection between the membrane 1 and the elastic connecting part 2. The supporting connecting element can preferably be rivets, screws or bolts.

FIG. 3 - zeigt die Einordnung der einzelnen Elemente im Seitenbild. FIG. 4 - den Seitenbild der einteiligen Halterung als Federbogen 7 ausgebildet, der durch die eigene Vorspannung auf der Membrane 1 fest angebracht ist und die Führung 3a für den Halterfuß 4 trägt. FIG. 3 - shows the classification of the individual elements in the page image. FIG. 4 - the side image of the one-piece bracket is designed as a spring bow 7, which is firmly attached to the membrane 1 by its own pretension and carries the guide 3a for the holder foot 4.

Claims

P a t e n t a n s p r ü c h e Patent claims 1. Die schnellaustauschbare Membrane dadurch gekennzeichnet, daß auf der Membrane (1) ein elastisches Verbindungsteil (2) angebracht, vorzugsweise ganzflächig angeklebt oder anvulkanisiert ist, auf dem die Platte (3) mit Führungen (3a) für den Halterfuß (4) fest angeordnet sind.1. The quickly replaceable membrane, characterized in that on the membrane (1) an elastic connecting part (2) is attached, preferably glued or vulcanized over the entire surface, on which the plate (3) with guides (3a) for the holder base (4) fixedly arranged are. 2. Die schnellaustauschbare Membrane nach Anspruch 1 dadurch gekennzeichnet, daß das Verbindungsteil (2) mit der Platte (3) mit den Führungen (3a) und die Membrane (1) mit einer Gegenplatte (6) mittels eines oder mehreren Verbindungselemente (5) fest verbunden sind.2. The quickly replaceable membrane according to claim 1, characterized in that the connecting part (2) with the plate (3) with the guides (3a) and the membrane (1) with a counter plate (6) by means of one or more connecting elements (5) are connected. 3. Die schnellaustauschbare Membrane nach Anspruch 1 dadurch gekennzeichnet, daß um das Verbindungsteil (2) und die Membranenoberseite ein einteiliger Federbogen (7) , vorzugsweise aus Federstahl oder Kunststoff, durch die eigene Vorspannung fest angebracht ist, welcher auf der Seite des Verbindungselements (2) die Führungen (3a) für den Halterfuß (4) aufweist und auf der Innenseite glatt oder reliefartig ausgebildet ist.3. The quick-change membrane according to claim 1, characterized in that around the connecting part (2) and the top of the membrane a one-piece spring arch (7), preferably made of spring steel or plastic, is firmly attached by its own bias, which on the side of the connecting element (2 ) has the guides (3a) for the holder foot (4) and is smooth or relief-like on the inside. 4. Die schnellaustauschbare Membrane nach Anspruch 3 dadurch gekennzeichnet, daß die Haftung des Federbogens (7) durch dessen eigene Vorspannung durch das Verkleben mit dem elastischen Verbindungsteil (2) unterstützt wird. 4. The quick-change membrane according to claim 3, characterized in that the adhesion of the spring arch (7) is supported by its own bias by gluing with the elastic connecting part (2).
PCT/DE1998/000520 1997-02-23 1998-02-20 Rapidly exchangeable membrane for vacuum-stretch and/or drying machines for the leather industry Ceased WO1998037245A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19707076.0 1997-02-23
DE1997107076 DE19707076A1 (en) 1997-02-23 1997-02-23 The quick-change membrane for vacuum stretching and / or drying machines for the leather industry

Publications (1)

Publication Number Publication Date
WO1998037245A1 true WO1998037245A1 (en) 1998-08-27

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PCT/DE1998/000520 Ceased WO1998037245A1 (en) 1997-02-23 1998-02-20 Rapidly exchangeable membrane for vacuum-stretch and/or drying machines for the leather industry

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WO (1) WO1998037245A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102839234B (en) * 2012-09-05 2014-10-29 叶壮林 Chain adjustment damping device for leather flatting drying machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1572831A (en) * 1925-10-02 1926-02-09 Proctor And Schwartz Inc Carrying frame for leather driers
DE19608094A1 (en) * 1996-03-02 1997-09-04 Dokoupilova Magdalena Quickly replaceable membrane for vacuum stretching and drying machines for leather

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1572831A (en) * 1925-10-02 1926-02-09 Proctor And Schwartz Inc Carrying frame for leather driers
DE19608094A1 (en) * 1996-03-02 1997-09-04 Dokoupilova Magdalena Quickly replaceable membrane for vacuum stretching and drying machines for leather

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Publication number Publication date
DE19707076A1 (en) 1998-08-27

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