AT133381B - Device for tensioning drying felts on paper, cardboard u. Like. Machines by means of compressed air or hydraulic fluid. - Google Patents

Device for tensioning drying felts on paper, cardboard u. Like. Machines by means of compressed air or hydraulic fluid.

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Publication number
AT133381B
AT133381B AT133381DA AT133381B AT 133381 B AT133381 B AT 133381B AT 133381D A AT133381D A AT 133381DA AT 133381 B AT133381 B AT 133381B
Authority
AT
Austria
Prior art keywords
felts
paper
machines
cardboard
compressed air
Prior art date
Application number
Other languages
German (de)
Original Assignee
Voith J M Fa
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 Voith J M Fa filed Critical Voith J M Fa
Application granted granted Critical
Publication of AT133381B publication Critical patent/AT133381B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Vorrichtung zum Spannen von Trockenfilzen an Papier-,   Karton-u. dgl. Maschinen mittels Druckintt     oder Druckflüssigkeit.   



   Es ist bereits vorgeschlagen worden, Spannvorrichtungen für die Trockenfilze an   Papier-od.   dgl. 



   Maschinen mittels Druckluft oder   Druckflüssigkeit   in der Weise zu betreiben, dass mit den Spannwagen verbundene pneumatische oder hydraulische Kolben die Bewegung des Spannwagens und damit die
Höhe der Filzspannung bewirken. Die dabei benutzten Regelungsvorrichtungen waren in unmittelbarer
Nähe der einzelnen   Filztrocknungsvorrichtungen   angebracht, so dass die Inbetriebsetzung der Spannvorrichtungen vermittels der zerstreut angeordneten Regelungsvorrichtungen im Bedarfsfälle umständlich und zeitraubend war. 



   Gemäss der Erfindung wird nun die Steuerungseinriehtung für die Vorrichtungen zum Spannen der Trockenfilze an Papier-,   Karton-u. dgl. Maschinen mittels Druckluft   oder   Druekflüssigkeit   so angeordnet, dass das Spannen oder Entspannen sämtlicher Filze von einer Stelle aus gleichzeitig vorgenommen werden kann. Es werden nämlich die den einzelnen Filzen zugeordneten Steuervorriehtungen   räumlich   an einer Stelle des Betriebes vereinigt, von der aus die Leitungen für das Druckmittel sich nach den einzelnen Filzen verteilen.

   Hiedurch ist es möglich, von der zentral gelegenen Steuerungsstelle aus die richtige Filzspannung der einzelnen Gruppen, den Betriebsbedingungen entsprechend, einzustellen und auch mittels geeigneter, an entsprechender Stelle angebrachter   Messinstrumente   dauernd zu überwachen. 



   Diese Zentralisierung der Steuerung gibt aber auch die Möglichkeit, in der alle Leitungen versorgenden Hauptleitung für das Druckmittel vor den einzelnen Steuerungsvorrichtungen eine Hauptsteuerungsvorrichtung vorzusehen, die es gestattet, sämtliche Filze gleichzeitig mit einem Handgriff sowohl zu spannen als auch zu entspannen. 



   Die Zentralisierung der Steuerung gemäss der Erfindung äussert ihre Vorteile, insbesondere bei den modernen schnellaufenden Maschinen auch darin, dass im Falle eines Reissens der Papierbahn die Filzspannung in kürzester Zeit aufgehoben und hiedurch verhindert werden kann, dass die Filze infolge der sofort einsetzenden starken Schrumpfung bei unmittelbarer   Berührung   mit den geheizten Trockenzylindern stark verzerrt oder gar zerrissen werden. 



   PATENT-ANSPRÜCHE :
1. Vorrichtung zum Spannen von Trockenfilzen an Papier-, Karton-u. dgl. Maschinen mittels Druckluft oder   Druckflüssigkeit,   dadurch gekennzeichnet, dass die   Steuerungsvorrichtungen Dir   das Druckmittel der verschiedenen Filze räumlich an einer Stelle vereinigt sind. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Device for tensioning drying felts on paper, cardboard u. Like. Machines by means of printing ink or hydraulic fluid.



   It has already been proposed that tensioning devices for the drying felts on paper od. like



   To operate machines by means of compressed air or hydraulic fluid in such a way that pneumatic or hydraulic pistons connected to the clamping carriage control the movement of the clamping carriage and thus the
Cause the height of the felt tension. The regulating devices used were in the immediate vicinity
Attached near the individual felt drying devices, so that the commissioning of the tensioning devices by means of the scattered control devices was cumbersome and time-consuming if necessary.



   According to the invention, the control unit for the devices for tensioning the drying felts on paper, cardboard u. Like. Machines arranged by means of compressed air or pressure fluid so that the tensioning or relaxation of all felts can be carried out simultaneously from one point. This is because the control devices assigned to the individual felts are spatially combined at one point in the company from which the lines for the pressure medium are distributed to the individual felts.

   This makes it possible to set the correct felt tension of the individual groups from the centrally located control point, in accordance with the operating conditions, and to continuously monitor it by means of suitable measuring instruments attached to the appropriate point.



   This centralization of the control also gives the possibility of providing a main control device in the main line supplying all lines for the pressure medium in front of the individual control devices, which allows all felts to be tensioned and relaxed simultaneously with one movement.



   The centralization of the control according to the invention expresses its advantages, especially with modern high-speed machines, in that in the event of a tear in the paper web, the felt tension can be released in a very short time and this prevents the felts from shrinking immediately as a result of the strong shrinkage that starts immediately Contact with the heated drying cylinders will be severely distorted or even torn.



   PATENT CLAIMS:
1. Device for tensioning drying felts on paper, cardboard u. Like. Machines by means of compressed air or hydraulic fluid, characterized in that the control devices dir the pressure medium of the different felts are spatially combined at one point.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass den Steuerungsvorrichtungen für die einzelnen Filze eine Hauptsteuerungsvorrielhtung vorgelagert ist. die sämtliche Filze gleichzeitig zu spannen oder Zll entspannen gestattet. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 2. Apparatus according to claim 1, characterized in that the control devices for the individual felts are preceded by a main control device. which allows all felts to be tensioned or to relax at the same time. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT133381D 1931-04-13 1932-04-12 Device for tensioning drying felts on paper, cardboard u. Like. Machines by means of compressed air or hydraulic fluid. AT133381B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE133381X 1931-04-13

Publications (1)

Publication Number Publication Date
AT133381B true AT133381B (en) 1933-05-26

Family

ID=29277756

Family Applications (1)

Application Number Title Priority Date Filing Date
AT133381D AT133381B (en) 1931-04-13 1932-04-12 Device for tensioning drying felts on paper, cardboard u. Like. Machines by means of compressed air or hydraulic fluid.

Country Status (1)

Country Link
AT (1) AT133381B (en)

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