EP1252019B1 - Arrangement for emptying and filling of a hose admitting a working fluid - Google Patents

Arrangement for emptying and filling of a hose admitting a working fluid Download PDF

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Publication number
EP1252019B1
EP1252019B1 EP00991082A EP00991082A EP1252019B1 EP 1252019 B1 EP1252019 B1 EP 1252019B1 EP 00991082 A EP00991082 A EP 00991082A EP 00991082 A EP00991082 A EP 00991082A EP 1252019 B1 EP1252019 B1 EP 1252019B1
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EP
European Patent Office
Prior art keywords
working fluid
hose
emptying
filling
pressure source
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.)
Expired - Lifetime
Application number
EP00991082A
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German (de)
French (fr)
Other versions
EP1252019A1 (en
Inventor
Wolfgang Peter Zink
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.)
Koenig and Bauer AG
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Koenig and Bauer AG
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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1252019A1 publication Critical patent/EP1252019A1/en
Application granted granted Critical
Publication of EP1252019B1 publication Critical patent/EP1252019B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1206—Feeding to or removing from the forme cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/60—Devices for transferring printing plates
    • B41P2227/62—Devices for introducing printing plates

Definitions

  • the invention relates to an arrangement for emptying and filling a pressurizable with Arsbeitsfluid hose according to the preamble of claim 1.
  • the GB 2 283 062 A shows a device for filling and emptying a pad with a pressure medium.
  • the emptying takes place via a throttle by means of the ejector principle.
  • the invention has for its object to provide a printing press with a shape-changeable hose and an arrangement for emptying and filling a pressurizable with working fluid hose.
  • the achievable with the present invention consist in particular in that a used for holding or clamping objects can be completely emptied hose in no time.
  • This is advantageous, for. Example, when feeding folded plates to a forme cylinder through a feed chute of a feeder, in which the folded ends of the pressure plate are temporarily clamped by filled tubes on the shaft wall.
  • the hoses are completely flat after emptying the filling medium or the working fluid. This increases the length of the possible working stroke.
  • This is particularly advantageous for the dimensioning of the clear width of a Transport shaft for conveying frontally beveled printing plates, in which hoses are arranged as tikstoffbetätigbare clamping elements.
  • An actuator 01 e.g. a variable-shape hose 01 is connected via a feed line 02 to a pressure source 03 for a working fluid, for. As gas, especially compressed air, connected.
  • the second directional control valve 06 has a connection for a line 07, which expediently ends in a throttle valve 08 with a downstream muffler 09.
  • the second directional control valve 06 is connected via the supply line 02 to the first directional control valve 04.
  • the first directional control valve 04 has a connection for a first line 11, which in turn is connected directly to the throttle valve 08. From the outgoing from the second directional control valve 06 outlet pipe 07 branches off a pneumatically actuated control line 12, which switches the first directional control valve 04 against the force of a return spring at Druck Kunststoffbeetzwegung.
  • Fig. 1 are the hose 01 and the directional control valves 04; 06 in filling position A, ie the tube 01 is filled with coming from the pressure source 03 compressed air.
  • the cross section of the tube 01 changes and is approximately circular or oval, depending on how much space in a channel z.
  • the second directional control valve 06 switches to the emptying position B ( Fig. 2 ).
  • the pressure source 03 compressed air is supplied through the valve position of the second directional control valve 06 of the second line 07, wherein the compressed air is blown off via the throttle valve 08 and the muffler 09 to the outside.
  • the branched off from the outlet line 07 control line 12 is acted upon by compressed air, so that the first directional control valve 04 switches to emptying position B.
  • the tube 01 is emptied empty via the first line 11 which has been released through the first directional valve 04, in that the air to be sucked off is supplied to the throttle valve 08 acted upon by the pressure source 03 with compressed air via the silencer 09.
  • the working fluid from the pressure source 03 with respect to the working fluid from the hose 01 to a positive differential speed.
  • Positive differential speed means that the working fluid from the pressure source 03 has a working fluid from the discharge 11 with respect to greater flow velocity (ejector principle).
  • the tube 01 is thus emptied via the throttle valve 08 and when filling the tube 01, the throttle valve 08 with a bypass, d. H. the line 02, bypassed.
  • a liquid may be used, such.
  • Both embodiments are understood to mean a device 08 operating according to the ejector principle.

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Paper (AREA)
  • Pipe Accessories (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

The invention relates to an arrangement for emptying and filling of a hose (01) admitting a working fluid, whereby a working fluid from a pressure source (03) is firstly introduced into an outlet line. The hose to be emptied is now connected to the outlet line which has already admitted working fluid from the pressure source, by means of a switchable drain (11), such that the hose filling can be rapidly emptied.

Description

Die Erfindung betrifft eine Anordnung zum Entleeren und Befüllen eines mit Arsbeitsfluid beaufschlagbaren Schlauches entsprechend dem Oberbegriff des Anspruchs 1.The invention relates to an arrangement for emptying and filling a pressurizable with Arsbeitsfluid hose according to the preamble of claim 1.

Durch die DE 42 44 077 C2 ist das Befüllen sowie das Entlüften von Schläuchen beim Aufspannen und Entfernen von biegsamen, an ihren Enden abgekanteten Druckplatten auf einen Formzylinder bzw. Entfernen von einem Formzylinder bekannt.By the DE 42 44 077 C2 is the filling and venting of hoses during clamping and removal of flexible, folded at their ends printing plates on a forme cylinder or removal from a forme cylinder known.

Die GB 2 283 062 A zeigt eine Einrichtung zum Befüllen und Entleeren eines Kissens mit einem Druckmittel. Das Entleeren erfolgt über eine Drossel mittels des Ejektorprinzips.The GB 2 283 062 A shows a device for filling and emptying a pad with a pressure medium. The emptying takes place via a throttle by means of the ejector principle.

Der Erfindung liegt die Aufgabe zugrunde, eine Druckmaschine mit einem formveränderbaren Schlauch und eine Anordnung zum Entleeren und Befüllen eines mit Arbeitsfluid beaufschlagbaren Schlauches zu schaffen.The invention has for its object to provide a printing press with a shape-changeable hose and an arrangement for emptying and filling a pressurizable with working fluid hose.

Die Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1.The object is achieved by the features of claim 1.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, daß ein zum Festhalten oder Festklemmen von Gegenständen benutzter Schlauch in kürzester Zeit vollständig entleert werden kann. Dies ist vorteilhaft, z. B. beim Zuführen von abgekanteten Druckplatten zu einem Formzylinder durch einen Zuführschacht einer Zuführvorrichtung, in welchem die abgekanteten Enden der Druckplatte durch gefüllte Schläuche zeitweise an der Schachtwand festgeklemmt werden. Besonders vorteilhaft ist es auch, wenn die Schläuche nach dem Entleeren des Füllmediums bzw. des Arbeitsfluids vollständig flach liegen. Dadurch wird die Länge des möglichen Arbeitshubes vergrößert. Dies ist besonders vorteilhaft für die Dimensionierung der lichten Weite eines Transportschachtes zum Befördern von stirnseitig abgekanteten Druckplatten, in denen Schläuche als druckmittelbetätigbare Klemmelemente angeordnet sind.The achievable with the present invention consist in particular in that a used for holding or clamping objects can be completely emptied hose in no time. This is advantageous, for. Example, when feeding folded plates to a forme cylinder through a feed chute of a feeder, in which the folded ends of the pressure plate are temporarily clamped by filled tubes on the shaft wall. It is also particularly advantageous if the hoses are completely flat after emptying the filling medium or the working fluid. This increases the length of the possible working stroke. This is particularly advantageous for the dimensioning of the clear width of a Transport shaft for conveying frontally beveled printing plates, in which hoses are arranged as druckmittelbetätigbare clamping elements.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is illustrated in the drawing and will be described in more detail below.

Es zeigen:

Fig. 1
die Prinzipdarstellung einer Schaltungsanordnung zum schnellen Entleeren von mit Arbeitsfluid gefüllten Schläuchen in Füllstellung des Schlauches
Fig. 2
eine Prinzipdarstellung analog Fig. 1, jedoch in Entleerstellung des Schlauches.
Show it:
Fig. 1
the schematic diagram of a circuit arrangement for the rapid emptying of filled with working fluid hoses in filling position of the hose
Fig. 2
a schematic representation analog Fig. 1 , but in the emptying position of the hose.

Ein Aktor 01, z.B. ein formveränderbarer Schlauch 01, ist über eine Zuleitung 02 mit einer Druckquelle 03 für ein Arbeitsfluid, z. B. Gas, insbesondere Druckluft, verbunden. In der Zuleitung 02 ist ein erstes Wegeventil 04, z. B. ein Dreiwege-Ventil, sowie ein zweites Wegeventil 06, z. B. ein Fünfwege-Ventil, angeordnet.An actuator 01, e.g. a variable-shape hose 01 is connected via a feed line 02 to a pressure source 03 for a working fluid, for. As gas, especially compressed air, connected. In the supply line 02, a first directional control valve 04, z. B. a three-way valve, and a second way valve 06, z. As a five-way valve arranged.

Das zweite Wegeventil 06 weist einen Anschluß für eine Leitung 07 auf, welche zweckmäßigerweise in einem Drosselventil 08 mit einem nachgeschalteten Schalldämpfer 09 endet. Das zweite Wegeventil 06 ist über die Zuleitung 02 mit dem ersten Wegeventil 04 verbunden.The second directional control valve 06 has a connection for a line 07, which expediently ends in a throttle valve 08 with a downstream muffler 09. The second directional control valve 06 is connected via the supply line 02 to the first directional control valve 04.

Das erste Wegeventil 04 weist einen Anschluß für eine erste Leitung 11 auf, die wiederum direkt mit dem Drosselventil 08 verbunden ist. Von der vom zweiten Wegeventil 06 abgehenden Auslaßleitung 07 zweigt eine pneumatisch betätigbare Steuerleitung 12 ab, welche bei Druckluftbeaufschlagung das erste Wegeventil 04 gegen die Kraft einer Rückstellfeder umschaltet.The first directional control valve 04 has a connection for a first line 11, which in turn is connected directly to the throttle valve 08. From the outgoing from the second directional control valve 06 outlet pipe 07 branches off a pneumatically actuated control line 12, which switches the first directional control valve 04 against the force of a return spring at Druckluftbeaufschlagung.

Die Anordnung arbeitet wie nachfolgend beschrieben: Entsprechend der Darstellung nach Fig. 1 befinden sich der Schlauch 01 sowie die Wegeventile 04; 06 in Befüllstellung A, d. h. der Schlauch 01 wird mit von der Druckquelle 03 kommenden Druckluft befüllt. Dabei verändert sich der Querschnitt des Schlauches 01 und wird annähernd kreisförmig oder auch oval, je nach dem, wieviel Platz in einem Kanal z. B. eines Plattenzylinders vorhanden ist, in welchem nicht dargestellte Druckplatten bzw. deren abgekantete Enden festgeklemmt werden.The arrangement operates as described below: As shown Fig. 1 are the hose 01 and the directional control valves 04; 06 in filling position A, ie the tube 01 is filled with coming from the pressure source 03 compressed air. In this case, the cross section of the tube 01 changes and is approximately circular or oval, depending on how much space in a channel z. B. a plate cylinder is present, in which printing plates, not shown, or their folded ends are clamped.

Nachdem ein Schaltbefehl, z. B. vom Maschinenleitstand zum Lösen der Druckplatten ausgegeben worden ist, schaltet das zweite Wegeventil 06 in die Entleerstellung B um (Fig. 2). Die aus der Druckquelle 03 kommende Druckluft wird durch die Ventilstellung des zweiten Wegeventils 06 der zweiten Leitung 07 zugeführt, wobei die Druckluft über das Drosselventil 08 sowie den Schalldämpfer 09 ins Freie abgeblasen wird. Gleichzeitig ist die von der Auslaßleitung 07 abzweigende Steuerleitung 12 mit Druckluft beaufschlagt, so daß das erste Wegeventil 04 in Entleerstellung B umschaltet. Der Schlauch 01 wird über die durch das erste Wegeventil 04 freigeschaltete erste Leitung 11 leergesaugt, indem die abzusaugende Luft dem von der Druckquelle 03 mit Druckluft beaufschlagten Drosselventil 08 zum Aufblasen über den Schalldämpfer 09 zugeführt wird. Dabei weist das Arbeitsfluid aus der Druckquelle 03 gegenüber dem Arbeitsfluid aus dem Schlauch 01 eine positive Differenzgeschwindigkeit auf. Positive Differenzgeschwindigkeit heißt, daß das Arbeitsfluid aus der Druckquelle 03 eine dem Arbeitsfluid aus der Ableitung 11 gegenüber größere Strömungsgeschwindigkeit aufweist (Ejektorprinzip).After a switching command, for. B. has been output from the machine control station for releasing the printing plates, the second directional control valve 06 switches to the emptying position B ( Fig. 2 ). Coming from the pressure source 03 compressed air is supplied through the valve position of the second directional control valve 06 of the second line 07, wherein the compressed air is blown off via the throttle valve 08 and the muffler 09 to the outside. At the same time, the branched off from the outlet line 07 control line 12 is acted upon by compressed air, so that the first directional control valve 04 switches to emptying position B. The tube 01 is emptied empty via the first line 11 which has been released through the first directional valve 04, in that the air to be sucked off is supplied to the throttle valve 08 acted upon by the pressure source 03 with compressed air via the silencer 09. In this case, the working fluid from the pressure source 03 with respect to the working fluid from the hose 01 to a positive differential speed. Positive differential speed means that the working fluid from the pressure source 03 has a working fluid from the discharge 11 with respect to greater flow velocity (ejector principle).

Der Schlauch 01 wird also über das Drosselventil 08 entleert und beim Befüllen des Schlauches 01 wird das Drosselventil 08 mit einem Bypass, d. h. der Leitung 02, überbrückt.The tube 01 is thus emptied via the throttle valve 08 and when filling the tube 01, the throttle valve 08 with a bypass, d. H. the line 02, bypassed.

Dadurch ist es möglich geworden, den Schlauch 01 in allerkürzester Zeit zu entlüften, was die Rüstzeiten verkürzt. Darüber hinaus ist die Dicke eines leergesaugten Schlauches gegenüber der Dicke eines nur entlüfteten Schlauches geringer - in letzterem ist noch Restluft enthalten - so daß z. B. Kanäle zum Aufnehmen von abgekanteten Plattenschenkeln allein durch diese Maßnahme schmal gehalten werden können.This has made it possible to vent the tube 01 in the shortest possible time, which shortens the set-up times. In addition, the thickness of an empty-suctioned tube compared to the thickness of a vented hose is less - in the latter is still Contain residual air - so that z. B. channels for receiving bevelled plate legs can be kept narrow by this measure alone.

Als Arbeitsfluid kann auch eine Flüssigkeit verwendet werden, wie z. B. Öl und dergleichen, was dann jedoch nach dem Entweichen aus dem Drosselventil 08 bzw. aus dem Schalldämpfer 09 aufgefangen wird.As a working fluid, a liquid may be used, such. As oil and the like, which is then collected after the escape from the throttle valve 08 and from the muffler 09.

Nach einer anderen Ausführungsvariante ist es auch möglich, das Drosselventil 08 wegzulassen und nur die Ableitung 11 des Wegeventils 04 mit der Auslaßleitung 07 zu verbinden. Bereits das mit hohem Druck, z. B. drei bis sechs bar, durch die Zuleitung 02 strömende Druckmedium, z. B. Druckluft ist in der Lage, die durch die Ableitung 11 entweichende Druckluft in Richtung Schalldämpfer 09 bzw. Luftauslaß mitzureißen.According to another embodiment, it is also possible to omit the throttle valve 08 and to connect only the derivative 11 of the directional control valve 04 with the outlet line 07. Already the high pressure, z. B. three to six bar, flowing through the supply line 02 pressure medium, z. B. compressed air is able to entrain the escaping through the discharge 11 compressed air in the direction of muffler 09 or air outlet.

Unter beiden Ausführungen wird eine nach dem Ejektorprinzip arbeitende Einrichtung 08 verstanden.Both embodiments are understood to mean a device 08 operating according to the ejector principle.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

0101
Schlauchtube
0202
Zuleitung (01)Supply line (01)
0303
Druckquelle (02)Pressure source (02)
0404
Wegeventil, erstes (02)Directional valve, first (02)
0505
--
0606
Wegeventil, zweites (02)Directional valve, second (02)
0707
Leitungmanagement
0808
Drosselventilthrottle valve
0909
Schalldämpfersilencer
1010
--
1111
Ableitung (04)Derivation (04)
1212
Steuerleitung (07; 04)Control line (07; 04)
AA
Füllstellung (01; 04; 06)Filling position (01; 04; 06)
BB
Entleerstellung (01; 04; 06)Emptying position (01; 04; 06)

Claims (6)

  1. Arrangement for emptying and filling an actuator (01) which can be fed with a working fluid, the working fluid being capable of being aspirated by means of a device operating according to the ejector principle, and the actuator (01) being capable of being filled by means of a bypass (02) bypassing the device (08) operating according to the ejector principle, a first directional valve (04) being arranged so as to be capable of connecting alternatively the actuator (01) to the throttle valve (08) via a discharge pipe (11) or the actuator (01) to the pressure source (03) via a feed pipe (02), a second directional valve (06) being arranged in the feed pipe (02), the second directional valve (06) connecting a pressure source (03) alternatively to the throttle valve (08) or the actuator (01), the second directional valve (06) being arranged so as to actuate the first directional valve (04) via a control line (12), characterized in that, on application of compressed air, the first directional valve (04) can be switched against the force of a spring.
  2. Arrangement according to Claim 1, characterized in that a first discharge pipe (11) filled with the working fluid on emptying of the hose (01) can be connected to a second pipe (02; 07) transporting a working fluid from a pressure source (03), the velocity of the working fluid from the pressure source (03) having a greater velocity than the working fluid from the hose (01).
  3. Arrangement according to Claim 1, characterized in that the device (08) operating according to the ejector principle is in the form of a throttle valve (08).
  4. Arrangement according to Claim 3, characterized in that a silencer (09) is connected downstream of the throttle valve (08).
  5. Arrangement according to Claim 3, characterized in that the discharge pipe (11) is connected directly to the throttle valve (08).
  6. Arrangement according to Claim 1, characterized in that the two directional valves (04; 06) can be actuated together.
EP00991082A 2000-01-31 2000-12-16 Arrangement for emptying and filling of a hose admitting a working fluid Expired - Lifetime EP1252019B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10004143 2000-01-31
DE10004143A DE10004143A1 (en) 2000-01-31 2000-01-31 Arrangement for emptying hoses filled with working fluid
PCT/DE2000/004499 WO2001056796A1 (en) 2000-01-31 2000-12-16 Arrangement for emptying and filling of a hose admitting a working fluid

Publications (2)

Publication Number Publication Date
EP1252019A1 EP1252019A1 (en) 2002-10-30
EP1252019B1 true EP1252019B1 (en) 2009-04-22

Family

ID=7629324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00991082A Expired - Lifetime EP1252019B1 (en) 2000-01-31 2000-12-16 Arrangement for emptying and filling of a hose admitting a working fluid

Country Status (4)

Country Link
EP (1) EP1252019B1 (en)
AT (1) ATE429334T1 (en)
DE (2) DE10004143A1 (en)
WO (1) WO2001056796A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10244574A1 (en) * 2002-09-25 2004-04-15 Koenig & Bauer Ag Cylinder of a printing press
AT8906U1 (en) * 2006-05-24 2007-02-15 Guenter Bauregger CONTROL DEVICE FOR A TENSION LIFTING DEVICE OF A VEHICLE PLANNER TOP
DE102014019784B4 (en) * 2014-09-18 2018-10-31 Koenig & Bauer Ag Device for adapting a cylinder elevator to a change of substrate in a printing machine
DE102014019783B4 (en) * 2014-09-18 2018-10-25 Koenig & Bauer Ag Device for adapting a cylinder elevator to a change of substrate in a printing machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3907779A1 (en) * 1989-03-10 1990-09-13 Bosch Gmbh Robert PNEUMATIC CONTROL DEVICE
DE4244077C2 (en) * 1992-12-24 1995-06-08 Koenig & Bauer Ag Device for clamping flexible printing plates on a forme cylinder of a rotary printing machine
GB2283062B (en) * 1993-10-22 1997-10-08 Spanset Inter Ag Method and apparatus for selectively inflating and deflating a stowage bag
DE29615206U1 (en) * 1996-09-02 1996-10-17 Beul Aba Gmbh Four-way jet pump for central heating radiators

Also Published As

Publication number Publication date
DE50015630D1 (en) 2009-06-04
DE10004143A1 (en) 2001-08-09
ATE429334T1 (en) 2009-05-15
WO2001056796A1 (en) 2001-08-09
EP1252019A1 (en) 2002-10-30

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