EP0258472B1 - Machine for moistening shoe uppers - Google Patents

Machine for moistening shoe uppers Download PDF

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Publication number
EP0258472B1
EP0258472B1 EP86112085A EP86112085A EP0258472B1 EP 0258472 B1 EP0258472 B1 EP 0258472B1 EP 86112085 A EP86112085 A EP 86112085A EP 86112085 A EP86112085 A EP 86112085A EP 0258472 B1 EP0258472 B1 EP 0258472B1
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EP
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Prior art keywords
pressure
machine
steam
pressure tank
steam generator
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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.)
Expired
Application number
EP86112085A
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German (de)
French (fr)
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EP0258472A1 (en
Inventor
Ernst Gruber
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.)
Ferd Schaefer Soehne GmbH and Co KG
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Ferd Schaefer Soehne GmbH and Co KG
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Application filed by Ferd Schaefer Soehne GmbH and Co KG filed Critical Ferd Schaefer Soehne GmbH and Co KG
Priority to EP86112085A priority Critical patent/EP0258472B1/en
Priority to DE8686112085T priority patent/DE3663769D1/en
Priority to AT86112085T priority patent/ATE43779T1/en
Priority to PT85638A priority patent/PT85638B/en
Publication of EP0258472A1 publication Critical patent/EP0258472A1/en
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Publication of EP0258472B1 publication Critical patent/EP0258472B1/en
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D11/00—Machines for preliminary treatment or assembling of upper-parts, counters, or insoles on their lasts preparatory to the pulling-over or lasting operations; Applying or removing protective coverings
    • A43D11/14—Devices for treating shoe parts, e.g. stiffeners, with steam or liquid

Definitions

  • the invention relates to a machine for dampening the upper leather of shoes with a chamber open on one side and hermetically closable by means of a cover for receiving the upper leather to be damped, into which steam can be introduced under pressure, and with a valve which empties the pressure chamber.
  • the invention thus connects to DE 2 833 384 A1, in which a steaming device with a box-like chamber for receiving shoe uppers is described.
  • the device can be connected to a steam generator that delivers steam at a pressure of approx. 2 bar.
  • the lid is pivotally connected to the steaming chamber and is closed and opened by hand.
  • the shafts were previously moistened in special damp rooms or over open (atmospheric) steam.
  • the storage time is 24 hours and the moisture contained is lost too quickly; in the second case the moisture absorption is only 1/10 compared to the new method.
  • US Pat. No. 3,314,093 describes a damping device for upper leather for shoes, which makes it possible to reduce the damping time to two to four minutes with automatic control of the working cycles.
  • the damping chambers have an elliptical cross section, and the covers for hermetically sealing the damping chambers are guided in the longitudinal direction of the damping chambers.
  • a pressure medium operated mechanism is provided for opening and closing the covers.
  • a water tank with a heating device is arranged in the device upstream of the steaming chamber or chambers to be loaded alternately in order to generate a damp atmosphere in the steaming chambers.
  • the invention has set itself the task of creating a machine with steam pressure for steaming the upper leather of shoes, which allows - and that for the inserted shaft - that water vapor presses so much water between the leather fibers within a very short time that the Leather is pliable enough for the lasting process to be wrinkle-free on the last.
  • the invented machine now allows the new process to be carried out directly on the lasting machine, so that the upper leather can be processed at maximum moisture and is also moistened within the lasting time of 7 seconds.
  • FIGS. 1 and 2 of the drawing An embodiment of the invention is shown in FIGS. 1 and 2 of the drawing and is described in more detail as follows.
  • the water is automatically filled into the reservoir 7 either by hand or via a water connection and float valve 8.
  • the steam generator 9 requests water from the reservoir 7, which is fed to it via a line 15 and a pump 11.
  • the water is evaporated to a certain pressure which can be selected depending on the type of leather.
  • the worker standing at the lasting machine places the dry shaft in the pressure vessel 1, which is open at the front.
  • the pulse is lifted by the vertical cylinder 3 in front of the opening, then pressed firmly against the flange of the pressure vessel 1 by the horizontal cylinder 4.
  • a bead screwed into the flange penetrates into the flat gasket attached to the cover, as a result of which the pressure vessel 1 is hermetically sealed.
  • thermoplastic cap material When processing thermoplastic cap material, more heat is required than is achieved by steam alone. Therefore, a heating sleeve 5 is placed around the pressure vessel 1, which additionally increases the boiler temperature.
  • the drawing also shows that an activation device 6 for sensitive leather, which must be made pliable without steam and which are generally used in the gusset, can be integrated into the invented machine. All parts that come into contact with steam or water and their connecting lines are made of rustproof material so that discoloration of the upper leather is avoided.

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  • Treatment Of Fiber Materials (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

1. Machine for steaming shoe uppers with a chamber which is open on one side and is hermetically sealable by means of a lid, for receiving the upper to be steamed, into which steam can be introduced under pressure and with a valve which evacuates the pressure chamber, characterized by the combination of the following features : a) the chamber holding an individual upper is constructed as a round pressure tank (1), fitted with an outer adjustable heating sleeve (5) for increasing the steam temperature, b) preceding the pressure tank is a steam generator (9) for generating steam of selectable pressure in the machine, which can be supplied to the pressure tank by way of a conduit (16), c) preceding the steam generator is a water reservoir (7) in the machine, from which water can be supplied to the steam generator by way of a conduit (15) controlled by a feed pump (11), d) the lid (2) of the pressure tank can be lifted by a pressure medium-actuated cylinder (3) up to the front of the opening of the pressure tank and can be pressed tightly against a flange of the pressure tank by a pressure medium-actuated horizontal cylinder (4), e) the entire control of the machine is effected electro-pneumatically.

Description

Die Erfindung betrifft eine Maschine zum Dämpfen von Oberleder von Schuhen mit einer einseitig offenen, mittels eines Deckels hermetisch verschließbaren Kammer zur Aufnahme des zu dämpfenden Oberleders, in die Dampf unter einem Druck einleitbar ist, und mit einem Ventil, das die Druckkammer entleert. Die Erfindung schließt damit an die DE 2 833 384 A1 an, in der ein Dämpfgerät mit einer kastenartigen Kammer zur Aufnahme von Schuhschäften beschrieben ist. Das Gerät ist an einen Dampferzeuger anschließbar, der Dampf mit einem Druck von ca. 2 bar liefert. Der Deckel ist schwenkbar an die Dämpfkammer angeschlossen und wird von Hand geschlossen und geöffnet.The invention relates to a machine for dampening the upper leather of shoes with a chamber open on one side and hermetically closable by means of a cover for receiving the upper leather to be damped, into which steam can be introduced under pressure, and with a valve which empties the pressure chamber. The invention thus connects to DE 2 833 384 A1, in which a steaming device with a box-like chamber for receiving shoe uppers is described. The device can be connected to a steam generator that delivers steam at a pressure of approx. 2 bar. The lid is pivotally connected to the steaming chamber and is closed and opened by hand.

Mit diesem Gerät wurde es ermöglicht, den eingelegten Schaft mit Dampfdruck zu umgeben, wodurch ein gleichmäßiger Dampf- und Feuchtigkeitsanteil von etwa 14% im Oberleder gewährleistet ist, so daß ein zusätzliches Dämpfen beim Fersenformen und Spitzenzwicken entfällt. das bekannte Dämpfgerät hatte jedoch einige betriebstechnische Nachteile. So war die Kammer wegen ihrer Kastenform einem raschen Druckaufbau nicht angepaßt. Auch wegen der Handbetätigung des Deckels und dem Zwang. nach dem Dämpfvorgang den Dampfdruck in der Kammer durch Öffnen eines Druckventils von Hand ablassen zu müssen, war die Behandlungszeit mit ca. 15 Minuten relativ lang.With this device it was possible to surround the inserted shaft with steam pressure, which ensures a uniform steam and moisture content of about 14% in the upper leather, so that additional steaming when heel shaping and tip tweaking is not necessary. the known steaming device had some operational disadvantages. Because of its box shape, the chamber was not adapted to rapid pressure build-up. Also because of the manual operation of the lid and the constraint. After the steaming process had to release the steam pressure in the chamber by hand by opening a pressure valve, the treatment time was relatively long at around 15 minutes.

In der Praxis wurden bisher die Schäfte in speziellen Feuchträumen oder über offenem (atmosphärischem) Dampf angefeuchtet. Im ersten Fall beträgt die Lagerzeit 24 Stunden, und die enthaltene Feuchte geht zu schnell wieder verloren; im zweiten Fall beträgt die Feuchtigkeitsaufnahme nur 1/10 im Vergleich zum neuen Verfahren.In practice, the shafts were previously moistened in special damp rooms or over open (atmospheric) steam. In the first case the storage time is 24 hours and the moisture contained is lost too quickly; in the second case the moisture absorption is only 1/10 compared to the new method.

In der US-A 3 314 093 ist eine Dämpfvorrichtung für Schuhoberleder beschrieben, die es ermöglicht, bei einer automatischen Steuerung der Arbeitszyklen die Dämpfzeit auf zwei bis vier Minuten herabzudrücken. Die Dämpfkammern haben elliptischen Querschnitt, und die Deckel zum hermetischen Verschließen der Dämpfkammern sind in Längsrichtung der Dämpfkammern geführt. Zum Öffnen und Schließen der Deckel ist ein druckmittelbetätigter Mechanismus vorgesehen. Dem oder den abwechselnd zu beschickenden Dämpfkammern ist ein Wasserbehälter mit einer Heizeinrichtung in der Vorrichtung vorgeordnet, um in den Dämpfkammern eine feuchte Atmosphäre zu erzeugen. Hierzu wird zwar mit Dampf, jedoch nicht mit Dampfdruck im Sinne eines Überdruckes gearbeitet, vielmehr wird in dem Wasserbehälter eine Temperatur erzeugt, die leicht unter dem Siedepunkt des Wassers liegt, und wobei der Dampf dadurch erzeugt wird, daß die oder beide Dämpfkammern unter Unterdruck gesetzt werden. Dieser Unterdruck bewirkt im Wasserbehälter eine Erzeugung von Naßdampf im Unterdruckbereich und mit der unter den Siedepunkt des Wassers eingestellten Temperatur. Diese Dämpfvorrichtung arbeitet somit nicht mit Dampfdruck.US Pat. No. 3,314,093 describes a damping device for upper leather for shoes, which makes it possible to reduce the damping time to two to four minutes with automatic control of the working cycles. The damping chambers have an elliptical cross section, and the covers for hermetically sealing the damping chambers are guided in the longitudinal direction of the damping chambers. A pressure medium operated mechanism is provided for opening and closing the covers. A water tank with a heating device is arranged in the device upstream of the steaming chamber or chambers to be loaded alternately in order to generate a damp atmosphere in the steaming chambers. This is done with steam, but not with steam pressure in the sense of an overpressure, rather a temperature is generated in the water tank that is slightly below the boiling point of the water, and the steam is generated by the fact that the or both steaming chambers are placed under negative pressure will. This negative pressure causes the generation of wet steam in the negative pressure area and at the temperature set below the boiling point of the water in the water tank. This steaming device therefore does not work with steam pressure.

Die Erfindung hat sich die Aufgabe gestellt, eine mit Dampfdruck arbeitende Maschine zum Dämpfen von Oberleder von Schuhen zu schaffen, die es erlaubt, - und zwar für den eingelegten Schaft - daß Wasserdampf unter Druck innerhalb kürzester Zeit soviel Wasser zwischen die Lederfasern drückt, daß das Leder für den Zwickvorgang geschmeidig genug ist, um sich faltenfrei auf den Leisten legen zu lassen.The invention has set itself the task of creating a machine with steam pressure for steaming the upper leather of shoes, which allows - and that for the inserted shaft - that water vapor presses so much water between the leather fibers within a very short time that the Leather is pliable enough for the lasting process to be wrinkle-free on the last.

Die erfundene Maschine erlaubt nun, das neue Verfahren direkt bei der Zwickmaschine durchzuführen, so daß das Oberleder bei maximaler Feuchte verarbeitet werden kann und auch innerhalb der Zwickzeit von 7 sec angefeuchtet wird.The invented machine now allows the new process to be carried out directly on the lasting machine, so that the upper leather can be processed at maximum moisture and is also moistened within the lasting time of 7 seconds.

Möglich wird dies durch die kennzeichnenden Merkmale der Ansprüche 1 bis 3.This is made possible by the characterizing features of claims 1 to 3.

Ein Ausführungsbeispiel der Erfindung ist in Fig. 1 und 2 der Zeichnung dargestellt und wird wie folgt näher beschrieben.An embodiment of the invention is shown in FIGS. 1 and 2 of the drawing and is described in more detail as follows.

Das Wasser wird entweder von Hand oder über einen Wasseranschluß und Schwimmerventil 8 automatisch in den Vorratsbehälter 7 gefüllt. Nach Bedarf fordert der Dampferzeuger 9 Wasser aus dem Vorratsbehälter 7 an, das ihm über eine Leitung 15 sowie eine Pumpe 11 zugeführt wird. Im Dampferzeuger 9 wird das Wasser bis zu einem gewissen, je nach Lederart wählbaren Druck verdampft. Der an der Zwickmaschine stehende Arbeiter legt den trockenen Schaft in den vorn offenen Druckkessel 1. Durch Impulsgabe wird der Deckel 2 durch den vertikalen Zylinder 3 vor die Öffnung gehoben, danach durch den horizontalen Zylinder 4 fest an den Flansch des Druckkessels 1 gepreßt.The water is automatically filled into the reservoir 7 either by hand or via a water connection and float valve 8. As required, the steam generator 9 requests water from the reservoir 7, which is fed to it via a line 15 and a pump 11. In the steam generator 9, the water is evaporated to a certain pressure which can be selected depending on the type of leather. The worker standing at the lasting machine places the dry shaft in the pressure vessel 1, which is open at the front. The pulse is lifted by the vertical cylinder 3 in front of the opening, then pressed firmly against the flange of the pressure vessel 1 by the horizontal cylinder 4.

Dabei dringt eine im Flansch eingedrehte Wulst in die am Deckel angebrachte Flachdichtung ein, wodurch der Druckkessel 1 hermetisch abgedichtet wird.A bead screwed into the flange penetrates into the flat gasket attached to the cover, as a result of which the pressure vessel 1 is hermetically sealed.

Erst dann strömt Dampf über die Leitung 16 in die Druckkammer, solange bis der gewünschte eingestellte Druck darin erreicht ist, danach wird zunächst über ein Ventil 18 die Druckkammer entleert und dann wieder automatisch geöffnet, so daß der angefeuchtete Schaft entnommen werden kann. Die gesamte Steuerung erfolgt elektro-pneumatisch. Gleichzeitig mit dem Dämpfen werden die im Schaft eingelegten Kappen aktiviert.Only then does steam flow via line 16 into the pressure chamber until the desired pressure has been reached therein, then the pressure chamber is first emptied via a valve 18 and then opened again automatically, so that the moistened shaft can be removed. The entire control is done electro-pneumatically. At the same time as steaming, the caps inserted in the shaft are activated.

Bei Verarbeitung von thermoplastischem Kappenmaterial ist mehr Hitze nötig, als durch den Dampf alleine erreicht wird. Deshalb ist um den Druckkessel 1 eine Heizmanschette 5 gelegt, die die Kesseltemperatur zusätzlich erhöht.When processing thermoplastic cap material, more heat is required than is achieved by steam alone. Therefore, a heating sleeve 5 is placed around the pressure vessel 1, which additionally increases the boiler temperature.

Die Zeichnung zeigt zusätzlich, daß eine Aktiviervorrichtung 6 für empfindliche Leder, die ohne Dampf geschmeidig gemacht werden müssen und die allgemein in der Zwickerei eingesetzt werden, in die erfundene Maschine integriert werden kann. Alle mit Dampf oder Wasser in Berührung kommenden Teile und deren Verbindungsleitungen sind aus nichtrostendem Material ausgeführt, damit Verfärbungen des Oberleders vermieden werden.The drawing also shows that an activation device 6 for sensitive leather, which must be made pliable without steam and which are generally used in the gusset, can be integrated into the invented machine. All parts that come into contact with steam or water and their connecting lines are made of rustproof material so that discoloration of the upper leather is avoided.

Claims (3)

1. Machine for steaming shoe uppers with a chamber which is open on one side and is hermetically sealable by means of a lid, for receiving the upper to be steamed, into which steam can be introduced under pressure and with a valve which evacuates the pressure chamber, characterised by the combination of the following features:
a) the chamber holding an individual upper is constructed as a round pressure tank (1), fitted with an outer adjustable heating sleeve (5) for increasing the steam temperature,
' b) preceding the pressure tank is a steam generator (9) for generating steam of selectable pressure in the machine, which can be supplied to the pressure tank by way of a conduit (16),
c) preceding the steam generator is a water reservoir (7) in the machine, from which water can be supplied to the steam generator by way of a conduit (15) controlled by a feed pump (11),
d) the lid (2) of the pressure tank can be lifted by a pressure medium-actuated cylinder (3) up to the front of the opening of the pressure tank and can be pressed tightly against a flange of the pressure tank by a pressure medium-actuated horizontal cylinder (4),
e) the entire control of the machine is effected electro-pneumatically.
2. Machine according to Claim 1, characterised in that the steam generator (9) is provided with a pressure monitor adjustable to a desired pressure.
3. Machine according to Claim 2, characterised by a plurality of pressure monitors adjustable to and switchable between different pressures.
EP86112085A 1986-09-02 1986-09-02 Machine for moistening shoe uppers Expired EP0258472B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP86112085A EP0258472B1 (en) 1986-09-02 1986-09-02 Machine for moistening shoe uppers
DE8686112085T DE3663769D1 (en) 1986-09-02 1986-09-02 Machine for moistening shoe uppers
AT86112085T ATE43779T1 (en) 1986-09-02 1986-09-02 MACHINE FOR STEAMING SHOE UPPER LEATHER.
PT85638A PT85638B (en) 1986-09-02 1987-09-02 MACHINE FOR TREATING WITH STEAM WATER THE COIRO OF THE PART OF UP OF SHOES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86112085A EP0258472B1 (en) 1986-09-02 1986-09-02 Machine for moistening shoe uppers

Publications (2)

Publication Number Publication Date
EP0258472A1 EP0258472A1 (en) 1988-03-09
EP0258472B1 true EP0258472B1 (en) 1989-06-07

Family

ID=8195380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112085A Expired EP0258472B1 (en) 1986-09-02 1986-09-02 Machine for moistening shoe uppers

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EP (1) EP0258472B1 (en)
AT (1) ATE43779T1 (en)
DE (1) DE3663769D1 (en)
PT (1) PT85638B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2445907C1 (en) * 2011-01-12 2012-03-27 Государственное образовательное учреждение высшего профессионального образования "Южно-Российский государственный университет экономики и сервиса" (ГОУ ВПО "ЮРГУЭС") Method of pressure moulding of blanks of upper part of shoes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR816829A (en) * 1936-04-24 1937-08-18 United Shoe Machinery Ab Apparatus for warming up leather soles and other materials under pressure
US3157896A (en) * 1962-03-22 1964-11-24 Kamborian Apparatus for applying cement to a shoe sole and applying steam to a shoe upper
US3314093A (en) * 1964-11-24 1967-04-18 Lotus Ltd Mulling of shoe uppers
US3423779A (en) * 1965-06-15 1969-01-28 United Shoe Machinery Corp Methods of conditioning shoe parts
US3681850A (en) * 1970-04-27 1972-08-08 Alfred Freedman Treatment of footwear
DE2833384A1 (en) * 1978-07-29 1980-02-07 Schaefer Ferd & Soehne Steam dampening unit for shoe mfg. machines - has pressure chamber with safety valve controlling steaming time

Also Published As

Publication number Publication date
PT85638A (en) 1988-10-14
DE3663769D1 (en) 1989-07-13
PT85638B (en) 1993-07-30
ATE43779T1 (en) 1989-06-15
EP0258472A1 (en) 1988-03-09

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