EP0179437A2 - Dispositif de mesure pour mesurer la pression d'appui des pinces dans les machines d'impression à feuilles - Google Patents

Dispositif de mesure pour mesurer la pression d'appui des pinces dans les machines d'impression à feuilles Download PDF

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Publication number
EP0179437A2
EP0179437A2 EP85113367A EP85113367A EP0179437A2 EP 0179437 A2 EP0179437 A2 EP 0179437A2 EP 85113367 A EP85113367 A EP 85113367A EP 85113367 A EP85113367 A EP 85113367A EP 0179437 A2 EP0179437 A2 EP 0179437A2
Authority
EP
European Patent Office
Prior art keywords
gripper
measuring
layer
sensor
grippers
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.)
Granted
Application number
EP85113367A
Other languages
German (de)
English (en)
Other versions
EP0179437B1 (fr
EP0179437A3 (en
Inventor
Johannes Georg Schaede
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
Original Assignee
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
Priority to AT85113367T priority Critical patent/ATE51801T1/de
Publication of EP0179437A2 publication Critical patent/EP0179437A2/fr
Publication of EP0179437A3 publication Critical patent/EP0179437A3/de
Application granted granted Critical
Publication of EP0179437B1 publication Critical patent/EP0179437B1/fr
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
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/04—Grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices

Definitions

  • the invention relates to a measuring device for measuring a gripper contact pressure in sheet-fed rotary printing machines.
  • the gripper contact pressure for all grippers in a gripper row of a sheet-transporting cylinder of a sheet-fed rotary printing machine must be as large as possible for all grippers. Stronger differences make for example in the form of D ublieren noticeable. Until now it was only possible to measure the gripper contact pressure using spring scales. - A method in which it was very dependent on the skill of the measurement technician to obtain accurate and reproducible values.
  • the invention has for its object to provide a device for measuring a gripper contact pressure for grippers in sheet-fed rotary printing presses, with which precise and reproducible values for the gripper contact pressure can be determined without being dependent on the skill of the person measuring.
  • the measuring device is arranged between a gripper tip 1 of a gripper on, for example, an impression cylinder and a metallic gripper support 2.
  • the measuring device consists of an insulator layer 3, a conductor layer 4 and an elastic carrier layer 6. These three layers are arranged one above the other, the conductor layer 4 expediently projecting over the carrier layer 6 on all sides and the insulator layer 3 in turn projecting over the conductor layer 4 on all sides.
  • the insulator layer 3 can consist, for example, of paper, the conductor layer 4 of aluminum.
  • the elastic carrier layer 6 can consist, for example, of foam rubber, its pores to have connection with one another. Graphite dust is embedded in these pores. Thin, plate-shaped elastomers, for example silicone rubber with embedded conductive carbon black, can also be used as carrier layer 6.
  • the total layer thickness of insulator layer 3 plus conductor layer 4 plus elastic carrier layer 6 is approximately 0.5 mm.
  • an insulated lead 7 is conductively attached.
  • an insulated connecting wire 8 is fastened in an electrically conductive manner.
  • the two connecting strands 7, 8 are connected, for example, to a Wheatstone measuring bridge (FIG. 2) with the bridge resistances R 1 , R 2 ' R 3 and R M.
  • R 1 is a fixed resistor
  • R 2 and R 3 are potentiometers.
  • the resistors R 1 , R2 , R3 , R m max. can be, for example, 500 ohms.
  • the supply voltage for the Wneatstone bridge is, for example, 1.5 volts DC.
  • a sensor 9 and a Wheatstone bridge (R 1 , R 2 , R 3 , R M ) must be present in a row of grippers for each gripper.
  • Each of the measuring bridges is connected, for example, to a measuring point switch 17 and connected in succession and the measured value is read off.
  • FIG. 4 a measuring system (FIG. 4) is also possible, in which the multiplex method is used.
  • the measured values from the plurality of sensors 9 are fed to a multiplexer 12 via respectively assigned measuring bridges 11 (connection points A 1 - B 1 , A 2 - B 2 , ... A 5 - B 5 ).
  • the analog measured values are converted into digital values and output to a process computer 14 and then displayed on a screen.

Landscapes

  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Manipulator (AREA)
  • Specific Conveyance Elements (AREA)
EP85113367A 1984-10-24 1985-10-22 Dispositif de mesure pour mesurer la pression d'appui des pinces dans les machines d'impression à feuilles Expired - Lifetime EP0179437B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85113367T ATE51801T1 (de) 1984-10-24 1985-10-22 Messeinrichtung zum messen eines greiferauflagedruckes in bogenrotationsdruckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3438929A DE3438929C2 (de) 1984-10-24 1984-10-24 Sensor zum Messen eines Greiferauflagedruckes in Bogenrotationsdruckmaschinen
DE3438929 1984-10-24

Publications (3)

Publication Number Publication Date
EP0179437A2 true EP0179437A2 (fr) 1986-04-30
EP0179437A3 EP0179437A3 (en) 1987-01-07
EP0179437B1 EP0179437B1 (fr) 1990-04-11

Family

ID=6248655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85113367A Expired - Lifetime EP0179437B1 (fr) 1984-10-24 1985-10-22 Dispositif de mesure pour mesurer la pression d'appui des pinces dans les machines d'impression à feuilles

Country Status (4)

Country Link
EP (1) EP0179437B1 (fr)
JP (1) JPS61106250A (fr)
AT (1) ATE51801T1 (fr)
DE (2) DE3438929C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4233867A1 (de) * 1992-10-08 1994-04-14 Heidelberger Druckmasch Ag Vorrichtung zum Messen des Auflagedruckes einer Greifereinrichtung in einer Bogenrotationsdruckmaschine
DE102010032641A1 (de) * 2009-09-14 2013-06-27 Heidelberger Druckmaschinen Ag Vorrichtung zur Messung der Schließkräfte von Greifern in Bogen verarbeitenden Maschinen

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4200406C2 (de) * 1992-01-10 1996-10-10 Heidelberger Druckmasch Ag Greifereinrichtung an bogenverarbeitenden Rotationsdruckmaschinen
JP2819089B2 (ja) * 1994-09-16 1998-10-30 大阪ダイヤモンド工業株式会社 超砥粒ブレード及びその製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR992938A (fr) * 1944-10-06 1951-10-24 Appareils et procédé pour la mesure de pressions
US2461691A (en) * 1946-03-06 1949-02-15 Robert G Lynn Gripper gauge
FR1177159A (fr) * 1956-06-05 1959-04-21 Plessey Co Ltd Procédé et appareil pour la mesure de forces ou de pressions
GB1059186A (en) * 1963-11-25 1967-02-15 John Henry Arthur Lewis Variable resistor
DE1897431U (de) * 1964-05-15 1964-07-30 Maschf Augsburg Nuernberg Ag Vorrichtung zum pruefen des greiferdruckes bzw. walzendrucks od. dgl. an greifern und walzen von druckmaschinen.
DE2655421C2 (de) * 1976-12-07 1986-04-17 Elmar Dr. 8000 München Messerschmitt Verfahren zur Messung des Rakeldrucks im Siebdruck

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4233867A1 (de) * 1992-10-08 1994-04-14 Heidelberger Druckmasch Ag Vorrichtung zum Messen des Auflagedruckes einer Greifereinrichtung in einer Bogenrotationsdruckmaschine
FR2696681A1 (fr) * 1992-10-08 1994-04-15 Heidelberger Druckmasch Ag Dispositif de mesure de la pression d'appui d'un dispositif preneur d'une machine rotative à imprimer des feuilles.
US5431099A (en) * 1992-10-08 1995-07-11 Heidelberger Druckmaschinen Ag Device for measuring contact pressure of a gripper device in a sheet-fed rotary printing press
DE102010032641A1 (de) * 2009-09-14 2013-06-27 Heidelberger Druckmaschinen Ag Vorrichtung zur Messung der Schließkräfte von Greifern in Bogen verarbeitenden Maschinen

Also Published As

Publication number Publication date
DE3438929C2 (de) 1986-10-02
JPS61106250A (ja) 1986-05-24
DE3577061D1 (de) 1990-05-17
ATE51801T1 (de) 1990-04-15
EP0179437B1 (fr) 1990-04-11
DE3438929A1 (de) 1986-04-24
EP0179437A3 (en) 1987-01-07

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