EP0419877B1 - Device for regulating the blower and suction air for the feeding device of a printing machine - Google Patents

Device for regulating the blower and suction air for the feeding device of a printing machine Download PDF

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Publication number
EP0419877B1
EP0419877B1 EP90116618A EP90116618A EP0419877B1 EP 0419877 B1 EP0419877 B1 EP 0419877B1 EP 90116618 A EP90116618 A EP 90116618A EP 90116618 A EP90116618 A EP 90116618A EP 0419877 B1 EP0419877 B1 EP 0419877B1
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EP
European Patent Office
Prior art keywords
air
valve
feeder
valve body
aperture
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
EP90116618A
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German (de)
French (fr)
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EP0419877A2 (en
EP0419877A3 (en
Inventor
Dieter Grossmann
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Priority to AT90116618T priority Critical patent/ATE98198T1/en
Publication of EP0419877A2 publication Critical patent/EP0419877A2/en
Publication of EP0419877A3 publication Critical patent/EP0419877A3/en
Application granted granted Critical
Publication of EP0419877B1 publication Critical patent/EP0419877B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0891—Generating or controlling the depression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/48—Air blast acting on edges of, or under, articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/50—Timing
    • B65H2513/52—Age; Duration; Life time or chronology of event
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86718—Dividing into parallel flow paths with recombining
    • Y10T137/86743—Rotary
    • Y10T137/86751—Plug

Definitions

  • the invention relates to a device for air control of feeder blowing air and feeder suction air in sheet feeders of printing presses, each with a rotary valve consisting of a valve housing and valve body.
  • Known feeder air control devices (Japanese GBM-OS No. Sho 59-190732) are designed as sliders with a solenoid, in which the valve body can be moved. Corresponding air lines are connected to each other that feed the feeder blowing air.
  • This control device has no device for regulating residual air.
  • Another disadvantage is that the feeder suction air discharge line and the feeder blow air supply line cannot be operated separately from one another. When the printing machine is switched off and running down, incorrect air supply lines are caused, which result in an undefined, unwanted paper sheet feeding into the printing machine.
  • a feeder air control in which the suction and blown air supply line to the sheet feeder can be controlled simultaneously via a manually operated rotary valve. If the rotary valve is turned by means of an adjusting lever, blown air reaches the sheet feeder to pre-loosen the sheet stack. Suction air is discharged from the suction heads.
  • the blown air is discharged into the environment by turning the actuator, the vacuum pump is now connected to a suction roller on the suction side.
  • the disadvantage is that no separate feed blowing and feed air control can be carried out. Another disadvantage is that the known device does not allow remote control. Finally, the known device has no device for discharging feeder misfire air.
  • German utility model 84 37 975 shows a pneumatic sheet feeder control according to the preamble of claim 1, in which feeder blowing air and feeder suction air are remotely controlled via two separate rotary valves.
  • the rotary valves are controlled via an electronic pushbutton switch, which determines whether an arc is present or not.
  • Feeder blowing air and feeder suction air are connected to a blower housing and thus constitute a closed circuit.
  • a disadvantage of this embodiment is that the valves arranged in the closed circuit cannot be operated separately from one another.
  • the problem underlying the invention arises to provide improved operating options, to provide improved control of sheet feeding into the printing press and to prevent unwanted paper sheets from being drawn in.
  • the object is achieved in that from the operator console and the sheet delivery, the control device for feeder blowing air and the control device for feeder suction air can be actuated separately by means of actuating means, the control devices having adjustable valve bodies and valve housings with additional openings for residual air regulation.
  • remote control could be used to create a separate operating option for both feeder blowing and feeder suction air from the sheet delivery.
  • a further advantage of the invention is the residual air regulation. Additional openings in the valve bodies prevent new sheets from being drawn into the outgoing printing press after being switched off. Additional paper can be saved by reducing the amount of paper waste, since there is no undefined drawing of new sheets into the press.
  • Another advantage is that the residual air regulation when switching off the printing machine prevents the feeding of new sheets with certainty and therefore no visual control of the application is necessary. This enables machine operation from anywhere.
  • valve bodies are supported in roller bearings. This reduces the bearing friction and creates a smooth operation.
  • the high surface quality reduces the friction in the valve reached.
  • the small air gap between the adjustable parts makes it almost impossible for air to escape.
  • the high surface quality also largely eliminates the risk of corrosion due to condensation forming in the air lines.
  • electromagnets are used to control the valve body. These electromagnets are non-positively connected to the valve body to be actuated.
  • pneumatic cylinders are used to actuate the valve bodies in the valve housings.
  • a printing machine with sheet delivery 1 and sheet feeder 2 is shown.
  • machine operation is also possible via a control panel 4 on the sheet delivery 1.
  • valve body 7 is adjustably accommodated in the valve housing 8 and in the valve housing 9.
  • the main air opening 12 and the residual air opening 14, which is arranged at an angle to the main air opening 12, can be seen in the valve body 7.
  • An adjusting screw 10 serves to regulate the blown air for pre-loosening the sheets of the sheet stack 22 (FIG. 1).
  • the blown air supply line 11 is connected to the blown air line 13, while the suction air line 17 is connected to the transport or lifting suction devices.
  • the blown air supply line 11 is connected to the blown air discharge line 13 via the main air opening 12 on the blown air side.
  • the valve body 7 is rotated, so that blown air can continue to flow to the feeder via the residual air opening 14 and the bypass 15 located in the valve housing 9, which to loosen the Serves sheet stack.
  • the dosage of the loosening air for the sheet feeder 2 is adjustable via the adjusting screw 10.
  • a travel limiter 21 serves as a stop for a rotating cam 20 which is connected to the electromagnet 18.
  • suction air supply line 16 and suction air discharge line 17 are also connected to one another via the valve body 7. If the feeder suction air is switched off via the operator console 3 or the control panel 4 at the sheet delivery, the valve body 7 is adjusted via an electromagnet 18 so that the suction air discharge line 16, 17 is interrupted and a pressure equalization with the atmosphere via the openings 12, 14 and 19 can take place. The sheet that is picked up then falls off the transport or lifting suction devices.

Abstract

A device for controlling feeder blowing air and feeder suction air in a sheet feeder of a printing machine having a sheet delivery, including a first control unit for controlling feeder blowing air and a second control unit for controlling feeder suction air, manual operating controls located both at the sheet feeder and the sheet delivery of the printing machine for separately actuating the first and the second control units by remote control, the first and the second control units, respectively, comprising a rotary valve with a valve housinhg and a valve member turnable in the valve housing and formed with a main opening for passing main air through the housing as well as with at least one auxiliary opening for residual air.

Description

Die Erfindung betrifft eine Vorrichtung zur Luftsteuerung von Anlegerblas- und Anlegersaugluft bei Bogenanlegern von Druckmaschinen, mit je einem Drehventil bestehend aus Ventilgehäuse und Ventilkörper.The invention relates to a device for air control of feeder blowing air and feeder suction air in sheet feeders of printing presses, each with a rotary valve consisting of a valve housing and valve body.

Bekannte Anlegerluftsteuerungseinrichtungen (jap. GBM-OS Nr. Sho 59-190732) sind als Schieberegler mit Hubmagnet ausgebildet, bei denen der Ventilkörper verschoben werden kann. Dadurch werden entsprechende Luftleitungen miteinander verbunden, die die Anlegerblasluft zuleiten.Known feeder air control devices (Japanese GBM-OS No. Sho 59-190732) are designed as sliders with a solenoid, in which the valve body can be moved. Corresponding air lines are connected to each other that feed the feeder blowing air.

Diese Steuerungseinrichtung weist keine Einrichtung zur Restluftregulierung auf. Ein weiterer Nachteil besteht darin, daß die Anlegersaugluftableitung sowie die Anlegerblasluftzuleitung nicht getrennt voneinander betätigt werden können. Bei Abschalten und Auslaufen der Druckmaschine werden Fehlluftzuleitungen verursacht, die einen undefinierten, ungewollten Papierbogeneinzug in die Druckmaschine zur Folge haben.This control device has no device for regulating residual air. Another disadvantage is that the feeder suction air discharge line and the feeder blow air supply line cannot be operated separately from one another. When the printing machine is switched off and running down, incorrect air supply lines are caused, which result in an undefined, unwanted paper sheet feeding into the printing machine.

Aus der US-PS 2 764 407 ist eine Anlegerluftsteuerung bekannt, bei der über ein manuell betätigtes Drehventil gleichzeitig dle Saug- und Blasluftzuleitung zum Bogenanleger gesteuert werden kann. Wird das Drehventil mittels eines Stellhebels verdreht, so gelangt Blasluft zum Vorlockern des Bogenstapels zum Bogenanleger. Saugluft wird von den Saugköpfen abgeführt.From US-PS 2 764 407 a feeder air control is known, in which the suction and blown air supply line to the sheet feeder can be controlled simultaneously via a manually operated rotary valve. If the rotary valve is turned by means of an adjusting lever, blown air reaches the sheet feeder to pre-loosen the sheet stack. Suction air is discharged from the suction heads.

Durch Verdrehen des Stellkörpers wird die Blasluft in die Umgebung abgeleitet, saugseitig ist die Vakuumpumpe nun mit einer Saugrolle verbunden.The blown air is discharged into the environment by turning the actuator, the vacuum pump is now connected to a suction roller on the suction side.

Mit Hilfe dieser Einrichtung kann die Anlegersaugluft und Anlegerblasluft gesteuert werden.With the help of this device the feed suction air and feed blow air can be controlled.

Von Nachteil ist jedoch, daß keine separate Anlegerblas- und Anlegersaugluftsteuerung vorgenommen werden kann. Ein weiterer Nachteil ist darin zu sehen, daß die bekannte Einrichtung keine Fernsteuerung erlaubt. Schließlich weist die bekannte Vorrichtung keine Einrichtung zur Ableitung von Anlegerfehlluft auf.The disadvantage, however, is that no separate feed blowing and feed air control can be carried out. Another disadvantage is that the known device does not allow remote control. Finally, the known device has no device for discharging feeder misfire air.

Das deutsche Gebrauchsmuster 84 37 975 zeigt eine pneumatische Bogenanlegersteuerung gemäß dem Oberbegriff des Anspruchs 1, bei der über zwei getrennte Drehventile Anlegerblas- und Anlegersaugluft ferngesteuert werden.The German utility model 84 37 975 shows a pneumatic sheet feeder control according to the preamble of claim 1, in which feeder blowing air and feeder suction air are remotely controlled via two separate rotary valves.

Hier erfolgt die Steuerung der Drehventile über einen elektronischen Tastschalter, der feststellt, ob ein Bogen vorhanden ist oder nicht. Anlegerblas- und Anlegersaugluft sind an ein Gebläsegehäuse angeschlossen, stellen also einen geschlossenen Kreislauf dar. Von Nachteil bei dieser Ausführung ist, daß die im geschlossenen Kreislauf angeordneten Ventile nicht getrennt voneinander zu betätigen sind.Here, the rotary valves are controlled via an electronic pushbutton switch, which determines whether an arc is present or not. Feeder blowing air and feeder suction air are connected to a blower housing and thus constitute a closed circuit. A disadvantage of this embodiment is that the valves arranged in the closed circuit cannot be operated separately from one another.

Aus den bislang skizzierten technischen Sachverhalten ergibt sich die der Erfindung zugrundeliegende Aufgabe, eine verbesserte Bedienungsmöglichkeit zu schaffen, für eine verbesserte Steuerung des Bogeneinzugs in die Druckmaschine zu sorgen und ein ungewolltes Einziehen von Papierbogen zu verhindern.From the technical facts outlined so far, the problem underlying the invention arises to provide improved operating options, to provide improved control of sheet feeding into the printing press and to prevent unwanted paper sheets from being drawn in.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß von der Bedienerkonsole und der Bogenauslage her, die Steuereinrichtung für Anlegerblasluft sowie die Steuereinrichtung für Anlegersaugluft über Stellmittel getrennt ferngesteuert betätigbar sind, wobei die Steuereinrichtungen verstellbare Ventilkörper sowie Ventilgehäuse mit Zusatzöffnungen zur Restluftregulierung aufweisen.According to the invention the object is achieved in that from the operator console and the sheet delivery, the control device for feeder blowing air and the control device for feeder suction air can be actuated separately by means of actuating means, the control devices having adjustable valve bodies and valve housings with additional openings for residual air regulation.

Die besonderen Vorteile der Erfindung liegen darin, daß durch die Fernsteuerung eine getrennte Bedienungsmöglichkeit sowohl für Anlegerblas- als auch für Anlegersaugluft von der Bogenauslage her geschaffen werden konnte.The particular advantages of the invention are that the remote control could be used to create a separate operating option for both feeder blowing and feeder suction air from the sheet delivery.

Einen weiteren Vorteil der Erfindung stellt die Restluftregulierung dar. Durch Zusatzöffnungen in den Ventilkörpern wird der Einzug neuer Bögen nach dem Abschalten in die auslaufende Druckmaschine vermieden. Durch geringeren Makulaturanfall beim Andrucken läßt sich zusätzliches Papier einsparen, da nun kein undefiniertes Einziehen neuer Bögen in die Druckmaschine erfolgt.A further advantage of the invention is the residual air regulation. Additional openings in the valve bodies prevent new sheets from being drawn into the outgoing printing press after being switched off. Additional paper can be saved by reducing the amount of paper waste, since there is no undefined drawing of new sheets into the press.

Als Vorteil ist weiterhin zu werten, daß durch die Restluftregulierung beim Abschalten der Druckmaschine der Einzug neuer Bogen mit Sicherheit unterbleibt und deshalb keine visuelle Kontrolle des Anlegens erforderlich ist. Dies ermöglicht eine Maschinenbedienung von beliebiger Stelle aus.Another advantage is that the residual air regulation when switching off the printing machine prevents the feeding of new sheets with certainty and therefore no visual control of the application is necessary. This enables machine operation from anywhere.

In einer vorteilhaften Ausgestaltung erfolgt die Lagerung der Ventilkörper in Wälzlagern. Dadurch wird die Lagerreibung herabgesetzt und ein leichtgängige Betätigungsmöglichkeit geschaffen.In an advantageous embodiment, the valve bodies are supported in roller bearings. This reduces the bearing friction and creates a smooth operation.

Als weitere vorteilhafte Ausgestaltung wird durch die hohe Oberflächengüte eine Reduzierung der Reibung im Ventil erreicht. Der geringe Luftspalt zwischen den verstellbaren Teilen macht ein Entweichen von Luft nahezu unmöglich. Durch die hohe Oberflächengüte ist zudem die Korrosionsgefahr durch sich bildendes Kondenswasser in den Luftleitungen weitgehend ausgeschlossen.As a further advantageous embodiment, the high surface quality reduces the friction in the valve reached. The small air gap between the adjustable parts makes it almost impossible for air to escape. The high surface quality also largely eliminates the risk of corrosion due to condensation forming in the air lines.

Eine vorteilhafte Ausgestaltung der Erfindung ist dadurch gegeben, daß zur Steuerung der Ventilkörper Elektromagnete verwendet werden. Diese Elektromagnete sind kraftschlüssig mit dem zu betätigenden Ventilkörper verbunden. In einer weiteren vorteilhaften Ausgestaltung der Erfindung werden zur Betätigung der Ventilkörper in den Ventilgehäusen Pneumatikzylinder verwendet.An advantageous embodiment of the invention is given in that electromagnets are used to control the valve body. These electromagnets are non-positively connected to the valve body to be actuated. In a further advantageous embodiment of the invention, pneumatic cylinders are used to actuate the valve bodies in the valve housings.

Ist die Blasluft abgestellt, so gelangt durch eine Restluftöffnung und einen Bypass im Gehäuse noch Lockerungsluft für den Bogenstapel zum Anleger. Wird die Saugluft abgestellt, so wird über eine Restluftöffnung im Ventilkörper eine Verbindung zur Atmosphäre geschaffen. Der aufgenommene Bogen fällt dann von den Saugköpfen ab. So kann ein unbeabsichtigtes Einziehen von neuen Bögen in die auslaufende Druckmaschine vermieden werden.If the blown air is switched off, air for the sheet stack reaches the feeder through a residual air opening and a bypass in the housing. If the suction air is switched off, a connection to the atmosphere is created via a residual air opening in the valve body. The recorded sheet then falls off the suction heads. In this way, unintentional drawing-in of new sheets into the printing press that is running out can be avoided.

Eine Ausführung der Erfindung wird anhand der Zeichnung beschrieben. Es zeigt

Fig. 1
eine schematische Seitenansicht einer Druckmaschine,
Fig. 2
einen Schnitt durch das Blasluft- /Saugluftventil und
Fig. 3
eine Seitenansicht bzw. Teilschnitt von Blasluftventil mit Elektromagnet.
An embodiment of the invention is described with reference to the drawing. It shows
Fig. 1
a schematic side view of a printing press,
Fig. 2
a section through the blown air / suction air valve and
Fig. 3
a side view or partial section of blow air valve with electromagnet.

In Fig. 1 ist eine Druckmaschine mit Bogenauslage 1 und Bogenanleger 2 gezeigt. Außer über eine Bedienerkonsole 3, auf der mehrere Schalter angeordnet sind und die sich am Bogenanleger 2 befindet, ist die Maschinenbedienung auch über ein Steuerpult 4 an der Bogenauslage 1 möglich.In Fig. 1, a printing machine with sheet delivery 1 and sheet feeder 2 is shown. In addition to an operator console 3 on which a plurality of switches are arranged and which is located on the sheet feeder 2, machine operation is also possible via a control panel 4 on the sheet delivery 1.

In Fig. 2 ist die Steuereinrichtung 5 für Blasluft und die Steuereinrichtung 6 für Saugluft dargestellt. Der Ventilkörper 7 ist verstellbar im Ventilgehäuse 8 sowie im Ventilgehäuse 9 untergebracht. Im Ventilkörper 7 sind die Hauptluftöffnung 12 sowie die Restluftöffnung 14, die winklig zur Hauptluftöffnung 12 angebracht ist, zu erkennen. Eine Stellschraube 10 dient zur Regulierung der Blasluft für das Vorlockern der Bögen des Bogenstapels 22 (Fig. 1). Je nach Stellposition des Ventilkörpers 7 ist die Blasluftzuleitung 11 mit der Blasluftableitung 13 verbunden, während die Saugluftableitung 17 mit den Transport- oder Hubsaugern verbunden ist.2 shows the control device 5 for blown air and the control device 6 for suction air. The valve body 7 is adjustably accommodated in the valve housing 8 and in the valve housing 9. The main air opening 12 and the residual air opening 14, which is arranged at an angle to the main air opening 12, can be seen in the valve body 7. An adjusting screw 10 serves to regulate the blown air for pre-loosening the sheets of the sheet stack 22 (FIG. 1). Depending on the position of the valve body 7, the blown air supply line 11 is connected to the blown air line 13, while the suction air line 17 is connected to the transport or lifting suction devices.

Ist der Bogenanleger 2 in Betrieb, so ist auf der Blasluftseite die Blasluftzuleitung 11 über die Hauptluftöffnung 12 mit der Blasluftableitung 13 verbunden.If the sheet feeder 2 is in operation, the blown air supply line 11 is connected to the blown air discharge line 13 via the main air opening 12 on the blown air side.

Wird der Bogenanleger 2 über die Bedienerkonsole 3 oder das Steuerpult 4 an der Bogenauslage 1 abgeschaltet, so wird der Ventilkörper 7 verdreht, so daß über die Restluftöffnung 14 und den im Ventilgehäuse 9 liegenden Bypass 15 weiterhin Blasluft zum Anleger strömen kann, die zum Vorlockern des Bogenstapels dient. Über die Stellschraube 10 ist die Dosierung der Lockerungsluft für den Bogenanleger 2 einstellbar. Ein Drehwegbegrenzer 21 dient als Anschlag für einen Verdrehnocken 20, der mit dem Elektromagneten 18 verbunden ist.If the sheet feeder 2 is switched off via the operator console 3 or the control panel 4 on the sheet delivery 1, the valve body 7 is rotated, so that blown air can continue to flow to the feeder via the residual air opening 14 and the bypass 15 located in the valve housing 9, which to loosen the Serves sheet stack. The dosage of the loosening air for the sheet feeder 2 is adjustable via the adjusting screw 10. A travel limiter 21 serves as a stop for a rotating cam 20 which is connected to the electromagnet 18.

Bei der Steuereinrichtung 6 für Anlegersaugluft, sind über den Ventilkörper 7 ebenfalls Saugluftzuleitung 16 und Saugluftableitung 17 miteinander verbunden. Wird die Anlegersaugluft über die Bedienerkonsole 3 oder das Steuerpult 4 an der Bogenauslage abgeschaltet, so wird über einen Elektromagneten 18 der Ventilkörper 7 so verstellt, daß die Saugluftableitung 16, 17 unterbrochen wird und über die öffnungen 12, 14 und 19 ein Druckausgleich mit der Atmosphäre stattfinden kann. Der aufgenommene Bogen fällt dann von den Transport- oder Hubsaugern ab.In the control device 6 for feeder suction air, suction air supply line 16 and suction air discharge line 17 are also connected to one another via the valve body 7. If the feeder suction air is switched off via the operator console 3 or the control panel 4 at the sheet delivery, the valve body 7 is adjusted via an electromagnet 18 so that the suction air discharge line 16, 17 is interrupted and a pressure equalization with the atmosphere via the openings 12, 14 and 19 can take place. The sheet that is picked up then falls off the transport or lifting suction devices.

Claims (6)

  1. Device for the air control of feeding blower air and feeding suction air for sheet feeders of printing machines, each having a turning valve comprising valve housing and valve body, characterised in that the control apparatus (5) for feeding blower air and the control apparatus (6) for feeding suction air can be operated separately by remote control via actuators (18) from the operator's console (3) and the control panel (4) at the sheet delivery (1), the control apparatuses (5, 6) having adjustable valve bodies (7) and valve housings (8, 9) with additional apertures for the regulation of residual air.
  2. Device according to Claim 1, characterised in that the valve bodies (7) are mounted in rolling bearings.
  3. Device according to Claim 1, characterised in that the valve body (7) and the valve housing (8, 9) have a good surface quality and the air gap between the valve body (7) and valve housings (8, 9) is up to 0.03 mm.
  4. Device according to Claim 1, characterised in that the valve bodies (7) are connected non-positively to an electromagnet and can be operated by means of the latter.
  5. Device according to Claim 1, characterised in that the valve bodies (7) are connected non-positively to a pneumatic cylinder and can be operated by means of the latter.
  6. Device according to one or more of Claims 1 to 5, characterised in that a main air aperture (12) and an aperture (14) for residual air are provided on the valve body (7), in that, on the valve housing (9) for blower air, in the corresponding adjustment position of the valve body (7) [lacuna] the aperture (14) for residual air, the main air aperture (12) are [sic] connected via air apertures to a bypass (15), at which the quantity of air can be metered via an adjusting screw (10) for preliminary loosening of the sheet stack (12), and in that, on the valve housing (8) for suction air in the corresponding position of the valve body (7) via the aperture (14) for residual air, the main air aperture (12) and the housing borehole (19), a connection is made to the surroundings.
EP90116618A 1989-09-26 1990-08-30 Device for regulating the blower and suction air for the feeding device of a printing machine Expired - Lifetime EP0419877B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90116618T ATE98198T1 (en) 1989-09-26 1990-08-30 DEVICE FOR AIR CONTROL OF FEEDER BLOW AND FEEDER SUCTION AIR IN SHEET FEEDERS OF PRINTING PRESSES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3931995 1989-09-26
DE3931995A DE3931995A1 (en) 1989-09-26 1989-09-26 DEVICE FOR AIR CONTROLLING FEEDER BLOW AND SUCTION SUCTION AIR IN BOW FEEDERS OF PRINTING MACHINES

Publications (3)

Publication Number Publication Date
EP0419877A2 EP0419877A2 (en) 1991-04-03
EP0419877A3 EP0419877A3 (en) 1991-10-16
EP0419877B1 true EP0419877B1 (en) 1993-12-08

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EP90116618A Expired - Lifetime EP0419877B1 (en) 1989-09-26 1990-08-30 Device for regulating the blower and suction air for the feeding device of a printing machine

Country Status (7)

Country Link
US (1) US5058876A (en)
EP (1) EP0419877B1 (en)
JP (1) JPH0694318B2 (en)
CN (1) CN1020038C (en)
AT (1) ATE98198T1 (en)
CA (1) CA2024293C (en)
DE (2) DE3931995A1 (en)

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DE4326927A1 (en) * 1993-08-11 1995-02-16 Heidelberger Druckmasch Ag Device for air control in sheet feeders of printing machines
DE19515301C2 (en) * 1995-04-26 1998-07-30 Roland Man Druckmasch Air control arrangement
DE19707414C2 (en) * 1997-02-25 2000-05-18 Roland Man Druckmasch Device for supplying compressed air to a printing machine
JP4175886B2 (en) * 2000-08-22 2008-11-05 日本たばこ産業株式会社 Sheet material delivery device
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Publication number Publication date
CN1020038C (en) 1993-03-10
US5058876A (en) 1991-10-22
EP0419877A2 (en) 1991-04-03
DE3931995A1 (en) 1991-04-04
JPH0694318B2 (en) 1994-11-24
CN1050526A (en) 1991-04-10
EP0419877A3 (en) 1991-10-16
CA2024293C (en) 1994-09-06
DE3931995C2 (en) 1993-07-15
JPH03166137A (en) 1991-07-18
CA2024293A1 (en) 1991-03-27
DE59003777D1 (en) 1994-01-20
ATE98198T1 (en) 1993-12-15

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