EP0775655B2 - Dispositif de commande pour air sous vide et/ou sous pression - Google Patents

Dispositif de commande pour air sous vide et/ou sous pression Download PDF

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Publication number
EP0775655B2
EP0775655B2 EP96118167A EP96118167A EP0775655B2 EP 0775655 B2 EP0775655 B2 EP 0775655B2 EP 96118167 A EP96118167 A EP 96118167A EP 96118167 A EP96118167 A EP 96118167A EP 0775655 B2 EP0775655 B2 EP 0775655B2
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EP
European Patent Office
Prior art keywords
valve
pressure
control
electrically controllable
user device
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
EP96118167A
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German (de)
English (en)
Other versions
EP0775655A1 (fr
EP0775655B1 (fr
Inventor
Jochem Dr. Tietze
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Filing date
Publication date
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Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0775655A1 publication Critical patent/EP0775655A1/fr
Publication of EP0775655B1 publication Critical patent/EP0775655B1/fr
Application granted granted Critical
Publication of EP0775655B2 publication Critical patent/EP0775655B2/fr
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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
    • B65H3/0883—Construction of suction grippers or their holding devices

Definitions

  • the invention relates to a suction air control for consumers of a feeder for Feeding sheets to a sheet processing machine Machine, according to the preamble of claim 1.
  • Such controls are particularly in sheet layers for sheet processing machines to supply vacuum cleaners with vacuum or from Blow nozzles with overpressure required. From the respective Negative or positive pressure source and the corresponding pneumatic control unit lead relatively long supply lines to consumers.
  • the most varied Sheets such as paper, cardboard, cardboard, corrugated cardboard or sheet metal that should be processable require one Adjustment of the intensity and the time of each Pressurization or vacuum application on Consumer.
  • a suction air control is known from EP-A-0 194 511 known after the type mentioned. It is by means of an adjustable frequency generator the opening and closing frequency of the valve can be changed.
  • a bow dispenser is known in which from a sheet stack by means of pressurizable Suction cups of the top sheet removable and can be spent. To make sure the bows too Two groups of suckers are securely grasped available. It is found that from the first group the sheet is not transported by suction cups, so is controlled via a microprocessor control the second group of suckers which then ensures that the top sheet is gripped and closed an issue is transported.
  • EP-A-0 503 623 known an electric valve dependent of parameters that can be entered from an electrical one Control unit.
  • a suction air control of the type mentioned at the outset is from DE 38 42 390 A1 known.
  • From DE 40 11 663 A1 is a sheet feeder with a control of the Suction air for a vacuum cleaner in time with the sheet processing machine known in which a ventilation line and a vacuum line by means of a switching valve arranged close to the vacuum can be opened or closed, the in turn by means of a control valve which can be actuated by a cam disk is controllable.
  • the DD 123 800 is a pneumatic sheet separating and conveying device known for sheet-processing machines that have a rotary slide valve has a suction air outlet and a compressed air outlet has.
  • the suction air outlet and the compressed air outlet are each via lines with a suction air connection and a compressed air connection one connected as a vacuum cleaner of a sheet feeder consumer.
  • the rotary valve is rotatably driven in the work cycle of the sheet feeder.
  • Solenoid valves are also known in DIN ISO 1219, page 9, 7.2.2.6.
  • the object of the invention is therefore controls of the type mentioned at the outset, through which the amount of pressure and / or the temporal pressure or Vacuum supply to the consumer can be precisely regulated are characterized by the characteristic features of the Claim 1 solved.
  • This training means that the vacuum source generated negative pressure or that of Pressure source generated overpressure in a sufficient Volume immediately and in the desired and constant height at the consumer, so that no time delay by emptying or filling the particular different line lengths to the different Supply system having consumers can occur. Significant fluctuations in Pressure or. Vacuum levels can occur and that proper treatment of the sheets to be conveyed negative tangent.
  • the parameters of the suction or blast air control can by sensors in particular on the bow processing machine detectable and the electronic Control device can be fed.
  • this can electrically controllable valve one way and / or one Pressure control and / or a flow control valve. Become can perform several of these functions the various valve functions integrated by an built valve.
  • control valve is preferably one electrically controllable control valve that also by the electronic control device can be controlled can.
  • the control valve can be a 2/2-way valve be whose passage is blocked in the first switching position is and in the second switching position the source of excess pressure connects to the electrically controllable valve.
  • the suction and blowing air control shown in Figure 1 for a sheet feeder has one above Sheet stack 1 arranged suction head 2 on which is a vacuum cleaner 3 is arranged. To that Vacuum cleaner 3 leads from a vacuum source, not shown a feed line 4. Through the separating suction 3 is the top sheet of the sheet stack 1 detectable and liftable, in order to then by a not shown Further conveying device such as also on Suction head 2 arranged vacuum cleaners detected and to be promoted.
  • a blowing air nozzle 6 arranged through the Blown air is blown against the uppermost sheet is so that they are separated from each other, or that under that at its lower end by the Separator 3 raised top bow an air cushion is formed, which is a separation of the top one
  • the entire length of the arch from the one below Arc causes.
  • the blowing nozzle 6 is fed via a feed line 7 from a pressure source, not shown, with under Pressurized air supplied.
  • a solenoid valve 8 and 9 is arranged, through which the vacuum or overpressure is applied controllable by separating suction device 3 or blowing nozzle 6 is.
  • a solenoid valve 8 and 9 is arranged, through which the vacuum or overpressure is applied controllable by separating suction device 3 or blowing nozzle 6 is.
  • the data lines 13 and 14 are electronic Control device 12 data of a not shown Printing machine feedable to which the sheet of the sheet stack 1 are promoted individually.
  • the data of the printing press can by Sensors detects e.g. Information about speeds, the angle of rotation or the cycle of the printing press his.
  • Sensors can also be used detected pressure values in the feed lines 4 and 7 supplied to the electronic control device 12 become.
  • Additional data can be entered via inputs 15, 16, 17 such as. about the type and quality of funding Manual sheet of the electronic control device 12 can be entered. According to the data supplied the program is controlled depending on the program Solenoid valves 8 and 9 by the electronic control device 12th
  • FIGs 2 and 3 are the solenoid valve 8 and the separating suction 3 in cross section both in the raised normal position as well as in the lowered Suction position shown.
  • Solenoid valve 8 and Vacuum cleaners 3 are combined into one unit and have a common housing 18.
  • In the housing 18 is formed with a cylinder bore 19, in which a step piston 20 with its large step 21 is arranged axially movable. With his little one Step 22 of the step piston 20 projects through a bore 23 same cross section down from the housing 18 and supports this protruding from the housing 18 End of a suction nozzle 24.
  • the step piston 20 is coaxial with a bore 25 provided on a suction surface 26 of the suction nozzle 24 opens out.
  • a bore 25 provided on a suction surface 26 of the suction nozzle 24 opens out.
  • suction bores 27 from the Bore 25 and also open into the suction surface 26th
  • the step piston 20 is the small one Cylindrical compression spring 28 enclosing step 22 biased towards its upper end position. there the compression spring 28 is supported with its upper end the large stage 21 of the stepped piston 20 and with it lower end at the transition from the cylinder bore 19 to bore 23.
  • the uppermost position of the stepped piston (fig 2) is by the abutment of the stepped piston 20 on one Stop defined by a stop disc 29th is formed.
  • the stop disc 29 is coaxial in one at the cylinder bore 19 adjoining guide bore 30 larger diameter than the cylinder bore 19 displaceable by a certain amount arranged and has axial spacers 31 against which the stepped piston 20 comes to rest. By the spacer 31 ensures that the bore 25 always with the face of the large step 21 communicated.
  • a pressure port 32 of the vacuum cleaner 3 is via two bores 33 and 34 with the cylinder bore 19 connected.
  • the bore 33 opens into the End area 23 facing bore in the cylinder bore 19 while bore 34 in the opposite End region of the cylinder bore 19 opens. This is in the raised normal position of the Step piston 20 between the small step 22 and the annular bore wall 35 formed over the both holes 33 and 34 with the pressure connection 32nd connected and pressurizable.
  • the 3/2-way valve has one in one Valve housing 38 between two end positions axially movable anchor 39, of a housing-fixed Coil 40 is enclosed.
  • the path of movement of the anchor 39 is aligned vertically.
  • In the interior 41 of the valve housing 38 opens a connection from below 42 to the feed line connection 36 and from above a connection 43 to the outside air.
  • the mouths of the Connections 42 and 43 are opposite Valve seats 44 and 45 are formed.
  • Each of them facing ends of the armature 39 have insert parts 46 made of a sealing material and form valve members, which cooperate with the valve seats 44 and 45.
  • the armature 39 raised against the force of the compression spring 47 and with the insert 46 against its upper end the valve seat 45 pressed so that the connection 43 of the Interior 41 blocked off from outside air and the interior 43 with the supply connection 36 via the connection 42 is connected. Since the interior 41 continues permanently connected to the pressure connection 32 is dependent on the control of the coil 40 either with the feed line connection 36 or connected to the outside air.
  • the coil 40 If the coil 40 is energized, it opens of the valve seat 44 and closing the valve seat 45. As permanent at the supply line connection 36 Vacuum is applied, is largely without delay via the pressure connection 32 and the bores 33 and 34 a negative pressure application of the Annulus 35. Since the annulus 35 facing away Side of the large stage 21 through the bore 25 with the Outside air is connected, the stepped piston 20 lowers against the force of the compression spring 28 and moves in its suction position ( Figure 3).
  • the suction surface arrives approximately in the suction position 26 of the suction nozzle 24 on the top sheet of the Sheet stack 1 for edition. This closes the bore 25 and the suction bores 27 through the uppermost arch, so that also over the bore 34 on the side facing away from the suction surface 26, the large one Step 21 of the step piston 20 is subjected to negative pressure and the stepped piston 21 is lifted off with the detected arc becomes.
  • the 3/2-way valve 37 By switching the 3/2-way valve 37 the separating vacuum is exposed to outside air 2 and thus an acceleration of the lifting movement as well as reducing the holding force of the bow, so that this easily through from the raised position e.g. a drag vacuum from the separation vacuum 3 in the conveying direction 5 can be deducted.
  • FIG 4 A circuit diagram of the 3/2-way valve 37 is shown in FIG 4 shown, the individual parts with the same Reference numerals are provided.
  • a vacuum source 49 is connected to the supply line connection 36.
  • connection 43 is not to Outside air leads to an overpressure source 48, so that the ventilation of the separating vacuum is done faster can.
  • the embodiment of Figure 6 is one further modification of the training example of the figure 5.
  • the pressure source 48 is not immediate but via one designed as a solenoid valve 2/2-way valve 50 with the connection 43 of the 3/2-way valve 37 connected.
  • With an electromagnet 51 is the 2/2-way valve 50 from its shown Position with blocked passage against the force a spring 52 in its open passage position adjustable. This enables controlled ventilation of the suction cup 3 via the 3/2-way valve 37.
  • Figure 7 shows a simple embodiment a suction air control according to the invention for a separating suction 3 with a 2/2-way valve 53, the by an electromagnet 54 against the force of one Spring 55 between a supply line connection 36 of the valve with a pressure connection 32 of the Vacuum cleaner connecting position and a locking Position is switchable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Air Bags (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Manipulator (AREA)

Claims (11)

  1. Commande d'air d'aspiration pour des consommateurs d'un dispositif d'amenée de feuilles à une machine traitant des feuilles, en particulier une machine d'impression, un raccord de pression (32) du consommateur pouvant être alimenté, par l'intermédiaire d'un conduit d'amenée, par la dépression d'une source de dépression (49), une sortie d'une valve électriquement commandable étant directement raccordée au raccord de pression (32) du consommateur, laquelle peut être commandée par un dispositif de commande (12), et le consommateur étant un dispositif d'aspiration muni d'une surface d'aspiration (26) pouvant être alimentée par la dépression de la source de dépression (49), la valve électriquement commandable pouvant être commandée par une unité de commande électronique (12) de façon dépendant des paramètres, pouvant être entrés dans le dispositif de commande (12), de l'angle de rotation et du cycle de la machine traitant des feuilles,
    caractérisée en ce que la valve électriquement commandable est un distributeur 3/2, dans la première position de commutation duquel le conduit d'amenée (4) est relié au raccord de pression (32) du consommateur, et dans la seconde position de commutation duquel le conduit d'amenée (4) est fermé et le raccord de pression (32) du consommateur est relié ou peut être relié à une source de surpression (48).
  2. Commande selon la revendication 1,
    caractérisée en ce que les raccords de pression de plusieurs consommateurs sont raccordés à la sortie de la valve électriquement commandable.
  3. Commande selon une des revendications précédentes,
    caractérisée en ce que les consommateurs et la valve électriquement commandable forment une unité constructive.
  4. Commande selon la revendication 3,
    caractérisée en ce que les consommateurs et la valve électriquement commandable possèdent un boítier commun (18).
  5. Commande selon une des revendications précédentes,
    caractérisée en ce que la valve électriquement commandable est une valve magnétique.
  6. Commande selon une des revendications précédentes,
    caractérisée en ce que les paramètres peuvent être détectés par des capteurs et être amenés à l'unité de commande électronique (12);
  7. Commande selon une des revendications 1 à 5,
    caractérisée en ce que les paramètres peuvent être entrés manuellement dans l'unité de commande électronique (12).
  8. Commande selon une des revendications précédentes,
    caractérisée en ce que la valve électriquement commandable est un distributeur et/ou une valve de réglage de pression et/ou un régulateur de débit.
  9. Commande selon une des revendications précédentes,
    caractérisée en ce que, dans la seconde position de commutation, le raccord de pression (32) du consommateur peut être relié à une source de surpression (48) par l'intermédiaire d'une valve de commande.
  10. Commande selon la revendication 9,
    caractérisée en ce que la valve de commande est une valve de commande électriquement commandable.
  11. Commande selon la revendication 9,
    c aractérisée en ce que la valve de commande est un distributeur 2/2 (50), dont le passage, dans la première position de commutation, est fermé et, dans la seconde position de commutation, relie la source de surpression (48) à la valve électriquement commandable.
EP96118167A 1995-11-22 1996-11-13 Dispositif de commande pour air sous vide et/ou sous pression Expired - Lifetime EP0775655B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19543440 1995-11-22
DE19543440A DE19543440A1 (de) 1995-11-22 1995-11-22 Saug- und/oder Blasluftsteuerung

Publications (3)

Publication Number Publication Date
EP0775655A1 EP0775655A1 (fr) 1997-05-28
EP0775655B1 EP0775655B1 (fr) 2001-07-18
EP0775655B2 true EP0775655B2 (fr) 2004-04-21

Family

ID=7778057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96118167A Expired - Lifetime EP0775655B2 (fr) 1995-11-22 1996-11-13 Dispositif de commande pour air sous vide et/ou sous pression

Country Status (3)

Country Link
EP (1) EP0775655B2 (fr)
AT (1) ATE203223T1 (fr)
DE (2) DE19543440A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5979889A (en) * 1997-04-15 1999-11-09 Heidelberger, Druckmaschinen Ag Apparatus for generating a vacuum
US6655678B2 (en) 1998-03-11 2003-12-02 G. D Societa′ per Azioni Suction gripping unit
IT1299894B1 (it) * 1998-03-11 2000-04-04 Gd Spa Unita' di presa ad aspirazione.
DE19901341B4 (de) * 1999-01-15 2005-07-21 Man Roland Druckmaschinen Ag Luftsteuer- und/oder Luftregelungseinrichtung
DE20018500U1 (de) * 2000-10-28 2001-12-13 KRONES AG, 93073 Neutraubling Blasmaschine
FR2872082B1 (fr) 2004-06-23 2006-10-06 Sidel Sas Installation de soufflage de recipients en materiau thermoplastique
DE202006011282U1 (de) * 2006-07-21 2006-10-19 Mabeg Maschinenbau Gmbh & Co. Kg Stufenlose Luftschaltung
DE102008016597B4 (de) 2008-04-01 2020-05-07 Koenig & Bauer Ag Bogenanleger mit einem Bogentrenner
DE102008058474A1 (de) * 2008-11-21 2010-05-27 Heidelberger Druckmaschinen Ag Falzmaschine
DE102009041253A1 (de) * 2009-09-11 2011-03-24 Krones Ag Blasventil
DE102014116728A1 (de) 2013-11-16 2015-05-21 manroland sheetfed GmbH Luftsteuerung für einen Saugkopf
DE102017210248B4 (de) * 2017-06-20 2022-12-08 Koenig & Bauer Ag Bogenanleger für eine Druckmaschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3842390A1 (de) † 1988-12-16 1990-06-21 Mabeg Maschinenbau Gmbh Nachf Steuervorrichtung zur ansteuerung von ventileinheiten
DE4011663A1 (de) † 1990-04-11 1991-10-17 Spiess Gmbh G Bogenanleger

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE615746C (de) * 1933-06-02 1935-07-12 Zwietusch E & Co Gmbh Sauger fuer Bogenanleger
DE1092487B (de) * 1957-05-17 1960-11-10 Mabeg Maschb G M B H Nachf Hen Trenn- und Foerdersauger fuer Bogenanleger
DE2111057B2 (de) * 1971-03-09 1975-07-31 Maschinenbau Oppenweiler Binder & Co, 7157 Oppenweiler Elektronische Vorrichtung zur Steuerung der Bogenzuf+hrung an Bogenanlegern für Papierverarbeitungsmaschinen
US4513957A (en) * 1983-05-03 1985-04-30 Ncr Corporation Item dispensing system
DE8437975U1 (de) * 1984-12-24 1989-03-09 Mathias Bäuerle GmbH, 7742 St Georgen Pneumatischer Bogenanleger
DE3508736A1 (de) * 1985-03-12 1986-09-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Vorrichtung zum vereinzeln und zum transport des jeweils obersten blattes eines stapels von blaettern oder blattfoermigen gegenstaenden
JP2641595B2 (ja) * 1990-05-07 1997-08-13 富士写真フイルム株式会社 シート体の枚葉方法
DE4207635A1 (de) * 1991-03-13 1992-10-01 Koenig & Bauer Ag Einrichtung zum regeln des blasluftbedarfes der vereinzelungsduesen bei einem bogenanleger einer bogenrotationsdruckmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3842390A1 (de) † 1988-12-16 1990-06-21 Mabeg Maschinenbau Gmbh Nachf Steuervorrichtung zur ansteuerung von ventileinheiten
DE4011663A1 (de) † 1990-04-11 1991-10-17 Spiess Gmbh G Bogenanleger

Also Published As

Publication number Publication date
EP0775655A1 (fr) 1997-05-28
DE19543440A1 (de) 1997-05-28
ATE203223T1 (de) 2001-08-15
DE59607306D1 (de) 2001-08-23
EP0775655B1 (fr) 2001-07-18

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